@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap";.login-wrapper{background-color:var(--bg-main);justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.login-card-ds{background:var(--sidebar-bg);border-radius:12px;flex-direction:column;width:100%;max-width:440px;padding:40px;display:flex;box-shadow:0 4px 20px #0000001a}.login-brand-ds{justify-content:center;align-items:center;gap:12px;margin-bottom:40px;display:flex}.login-logo-img-ds{object-fit:contain;width:36px;height:36px}.login-logo-text-ds{color:var(--text-primary);font-size:2rem;font-weight:700}.logo-ai-accent{color:var(--accent)}.login-subtitle-ds{text-align:center;color:var(--text-muted);margin-top:-25px;margin-bottom:30px;font-size:.95rem}.login-fields-ds{flex-direction:column;gap:16px;margin-bottom:24px;display:flex}.login-input-group{align-items:center;display:flex;position:relative}.login-input-ds{border:1px solid var(--border-color);width:100%;color:var(--text-primary);background:0 0;border-radius:30px;outline:none;padding:16px 20px;font-size:1rem;transition:border-color .2s}.login-input-ds:focus{border-color:var(--accent)}.login-input-ds::placeholder{color:var(--text-muted);opacity:.6}.ds-eye-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;display:flex;position:absolute;right:18px}.ds-eye-btn:hover{color:var(--text-primary)}.ds-legal-text{color:var(--text-muted);text-align:center;margin-bottom:24px;font-size:.85rem;line-height:1.4}.ds-legal-text a{color:var(--text-primary);text-underline-offset:2px;text-decoration:underline;text-decoration-thickness:1px}.ds-checklist{background:var(--input-bg,#2c2c2e80);border:1px solid var(--border-color,#ffffff14);border-radius:14px;flex-direction:column;gap:10px;margin-bottom:24px;padding:16px;display:flex}.ds-check-item{cursor:pointer;color:var(--text-secondary,#86868b);-webkit-user-select:none;user-select:none;align-items:center;gap:10px;padding:4px 0;font-size:.88rem;line-height:1.4;transition:color .2s;display:flex}.ds-check-item:hover{color:var(--text-primary,#f5f5f7)}.ds-check-item a{color:var(--accent-light,#7d7aff);font-weight:600;text-decoration:none}.ds-check-item a:hover{text-decoration:underline}.ds-checkbox{appearance:none;cursor:pointer;background:0 0;border:2px solid #5e5ce64d;border-radius:6px;width:20px;min-width:20px;height:20px;margin-top:1px;transition:all .2s;position:relative}.ds-checkbox:checked{background:var(--accent,#5e5ce6);border-color:var(--accent,#5e5ce6)}.ds-checkbox:checked:after{content:"✓";color:#fff;font-size:13px;font-weight:700;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.premium-google-btn.btn-disabled{opacity:.35;cursor:not-allowed;pointer-events:none}.ds-links-row{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.ds-link{color:var(--primary-button,#2b5bfe);font-size:.95rem;font-weight:500;text-decoration:none}.ds-link:hover{text-decoration:underline}.orange-btn{background-color:var(--accent);color:#fff;cursor:pointer;text-align:center;border:none;border-radius:30px;width:100%;padding:16px;font-size:1.05rem;font-weight:600;transition:opacity .2s}.orange-btn:hover{opacity:.9}.ds-back-btn{width:100%;color:var(--text-muted);cursor:pointer;background:0 0;border:none;margin-top:10px;padding:14px;font-size:1rem;font-weight:500}.ds-back-btn:hover{color:var(--text-primary)}.ds-divider{justify-content:center;align-items:center;gap:16px;margin-top:40px;display:flex}.ds-divider-line{background-color:var(--border-color);flex:1;height:1px}.ds-divider-icon{gap:16px;display:flex}.ds-social-circle{border:1px solid var(--border-color);cursor:pointer;background:0 0;border-radius:50%;justify-content:center;align-items:center;width:48px;height:48px;transition:background .2s;display:flex}.ds-social-circle:hover{background:var(--hover-bg)}.login-spinner-overlay{flex-direction:column;justify-content:center;align-items:center;height:280px;animation:.3s ease-in-out fadeIn;display:flex}.atom-loader{perspective:200px;width:80px;height:80px;margin-bottom:28px;position:relative}.atom-nucleus{z-index:2;background:linear-gradient(135deg,#5e5ce6,#bf5af2);border-radius:50%;width:12px;height:12px;animation:2s ease-in-out infinite nucleusPulse;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 0 20px #5e5ce699,0 0 40px #5e5ce64d}@keyframes nucleusPulse{0%,to{transform:translate(-50%,-50%)scale(1);box-shadow:0 0 20px #5e5ce699,0 0 40px #5e5ce64d}50%{transform:translate(-50%,-50%)scale(1.15);box-shadow:0 0 28px #5e5ce6cc,0 0 50px #5e5ce666}}.atom-orbit{border:1px solid #5e5ce61f;border-radius:50%;position:absolute;inset:0}.atom-orbit-1{transform:rotateX(70deg)rotate(0)}.atom-orbit-2{transform:rotateX(70deg)rotate(60deg)}.atom-orbit-3{transform:rotateX(70deg)rotate(-60deg)}.atom-electron{background:#7d7aff;border-radius:50%;width:7px;height:7px;position:absolute;box-shadow:0 0 10px #5e5ce6e6,0 0 20px #5e5ce666}.atom-orbit-1 .atom-electron{animation:1.8s linear infinite electronRevolver}.atom-orbit-2 .atom-electron{animation:2.2s linear -.6s infinite electronRevolver}.atom-orbit-3 .atom-electron{animation:2.6s linear -1.2s infinite electronRevolver}@keyframes electronRevolver{0%{top:-3px;left:calc(50% - 3px)}25%{top:calc(50% - 3px);left:calc(100% - 3px)}50%{top:calc(100% - 3px);left:calc(50% - 3px)}75%{top:calc(50% - 3px);left:-3px}to{top:-3px;left:calc(50% - 3px)}}.loading-text{color:var(--text-muted);max-width:280px;font-size:.95rem;font-weight:500}.skip-btn{color:var(--accent-light,#7d7aff);cursor:pointer;background:0 0;border:1px solid #5e5ce64d;border-radius:100px;margin-top:20px;padding:10px 24px;font-family:inherit;font-size:.88rem;font-weight:600;transition:all .2s;animation:.4s fadeIn}.skip-btn:hover{background:#5e5ce61a;border-color:#5e5ce680}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.premium-google-btn{color:#fff;cursor:pointer;background:linear-gradient(#1e1e1ee6 0%,#0f0f0ff2 100%);border:1px solid #ffffff1a;border-radius:50px;justify-content:center;align-items:center;gap:12px;width:100%;padding:16px;font-size:1.05rem;font-weight:700;transition:all .4s cubic-bezier(.16,1,.3,1);display:flex;position:relative;overflow:hidden;box-shadow:0 4px 15px #0006,inset 0 1px #ffffff1a}.premium-google-btn:before{content:"";background:linear-gradient(90deg,#0000,#e8913a26,#0000);width:50%;height:100%;transition:all .6s;position:absolute;top:0;left:-100%;transform:skew(-20deg)}.premium-google-btn:hover{color:#f0ad5e;background:linear-gradient(#282828e6 0%,#141414f2 100%);border-color:#e8913a66;transform:translateY(-3px);box-shadow:0 12px 30px #e8913a40,inset 0 1px #ffffff26}.premium-google-btn:hover:before{left:150%}.premium-google-btn:active{transform:translateY(1px);box-shadow:0 4px 10px #e8913a26,inset 0 1px #ffffff0d}.sidebar{background:var(--sidebar-bg);-webkit-backdrop-filter:blur(32px)saturate(150%);border-right:1px solid var(--border-color);z-index:100;flex-direction:column;width:220px;min-width:220px;transition:transform .35s cubic-bezier(.25,.8,.25,1);display:flex;position:relative}.sidebar:before{content:"";pointer-events:none;z-index:0;background:radial-gradient(at 50% 0,#6366f10f,#0000 70%);height:120px;position:absolute;top:0;left:0;right:0}@media (width<=768px){.sidebar{-webkit-backdrop-filter:blur(40px);background:#080910f7;width:82%;max-width:300px;position:fixed;top:0;bottom:0;left:0;transform:translate(-100%);box-shadow:4px 0 40px #0009}.sidebar.open{transform:translate(0)}}.sidebar-header{z-index:1;justify-content:space-between;align-items:center;padding:14px 14px 6px;display:flex;position:relative}.sidebar-logo{object-fit:contain;width:32px;height:32px}.sidebar-brand{align-items:center;gap:8px;display:flex}.sb-mean{color:var(--text-primary);letter-spacing:-.02em;font-size:1.4rem;font-weight:800}.sb-ai{color:var(--accent);letter-spacing:-.02em;font-size:1.4rem;font-weight:800}.sidebar-toggle-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;padding:6px;transition:all .15s;display:flex}.sidebar-toggle-btn:hover{color:var(--text-primary);background:var(--hover-bg)}.new-chat-pill{border:1px solid var(--border-color);border-radius:var(--radius-full);color:var(--text-primary);cursor:pointer;z-index:1;background:0 0;justify-content:center;align-items:center;gap:8px;margin:6px 12px 8px;padding:10px 16px;font-family:inherit;font-size:.88rem;font-weight:500;transition:all .25s;display:flex;position:relative}.new-chat-pill:hover{background:#6366f114;border-color:#6366f140;box-shadow:0 0 16px #6366f11a}.new-chat-pill:active{transform:scale(.97)}.new-chat-pill i{font-size:.8rem}.sidebar-search{z-index:1;padding:4px 12px 8px;position:relative}.sidebar-search input{border:1px solid var(--border-color);background:var(--input-bg);width:100%;color:var(--text-primary);border-radius:8px;outline:none;padding:8px 12px 8px 32px;font-family:inherit;font-size:.84rem;transition:all .2s}.sidebar-search input:focus{border-color:var(--accent);box-shadow:0 0 0 2px #6366f114}.search-icon{color:var(--text-muted);pointer-events:none;font-size:.72rem;position:absolute;top:50%;left:22px;transform:translateY(-50%)}.sidebar-tools{border-bottom:1px solid var(--border-color);z-index:1;margin-bottom:2px;padding:4px 8px 6px;position:relative}.tools-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.8px;padding:6px 12px 4px;font-size:.66rem;font-weight:600}.tool-item{width:100%;color:var(--text-secondary);cursor:pointer;text-align:left;background:0 0;border:none;border-radius:8px;align-items:center;gap:10px;padding:8px 12px;font-family:inherit;font-size:.86rem;transition:all .15s;display:flex}.tool-item:hover{background:var(--hover-bg);color:var(--text-primary)}.tool-item i{text-align:center;width:18px;color:var(--text-muted);font-size:.82rem;transition:color .15s}.tool-item:hover i{color:var(--accent-light)}.tool-item.active{background:#6366f114}.chat-list{z-index:1;flex:1;padding:4px 8px;position:relative;overflow-y:auto}.chat-group-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.8px;padding:10px 12px 4px;font-size:.66rem;font-weight:600}.chat-item{cursor:pointer;color:var(--text-secondary);border-radius:8px;justify-content:space-between;align-items:center;gap:6px;padding:8px 12px;font-size:.86rem;transition:all .12s;display:flex}.chat-item:hover{background:var(--hover-bg);color:var(--text-primary)}.chat-item.active{color:var(--text-primary);border-left:2px solid var(--accent);background:#6366f11a;font-weight:600}.chat-item-title{white-space:nowrap;text-overflow:ellipsis;flex:1;overflow:hidden}.chat-delete-btn{color:var(--text-muted);cursor:pointer;opacity:0;background:0 0;border:none;border-radius:6px;padding:4px 5px;font-size:.75rem;transition:all .12s}.chat-item:hover .chat-delete-btn{opacity:.5}.chat-delete-btn:hover{color:var(--danger);background:#ef444414;opacity:1!important}.sidebar-footer{border-top:1px solid var(--border-color);z-index:1;padding:8px 12px;position:relative}.profile-btn{width:100%;color:var(--text-primary);cursor:pointer;text-align:left;background:0 0;border:none;border-radius:10px;align-items:center;gap:10px;padding:8px;font-family:inherit;transition:all .15s;display:flex}.profile-btn:hover{background:var(--hover-bg)}.profile-avatar{background:linear-gradient(135deg, var(--accent), var(--accent-warm));color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:.9rem;font-weight:700;display:flex;box-shadow:0 0 12px #6366f133}.profile-info{flex:1;overflow:hidden}.profile-name-text{white-space:nowrap;text-overflow:ellipsis;font-size:.88rem;font-weight:600;overflow:hidden}.profile-dots{color:var(--text-muted);font-size:.8rem}.sidebar-collapsed{background:var(--sidebar-bg);-webkit-backdrop-filter:blur(24px);border-right:1px solid var(--border-color);z-index:100;flex-direction:column;align-items:center;gap:4px;width:52px;min-width:52px;padding:12px 0;display:flex}.sc-icon{width:38px;height:38px;color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:10px;justify-content:center;align-items:center;transition:all .15s;display:flex}.sc-icon:hover{color:var(--text-primary);background:var(--hover-bg)}.sc-icon.active{color:var(--accent);background:#6366f11a}.sc-divider{background:var(--border-color);width:24px;height:1px;margin:4px 0}.sc-spacer{flex:1}.sc-avatar{background:linear-gradient(135deg, var(--accent), var(--accent-warm));color:#fff;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:32px;height:32px;margin-top:4px;font-size:.82rem;font-weight:700;transition:all .2s;display:flex;box-shadow:0 0 12px #6366f126}.sc-avatar:hover{transform:scale(1.08);box-shadow:0 0 20px #6366f14d}.welcome-block{flex-direction:column;width:100%;height:100%;display:flex;position:relative}.welcome-center{flex-direction:column;flex:1;justify-content:center;align-items:flex-start;width:100%;max-width:480px;margin:0 auto;padding:0 28px;display:flex;position:relative}.welcome-center:before{content:"";filter:blur(60px);pointer-events:none;background:radial-gradient(circle,#6366f10f,#0000 70%);width:300px;height:300px;position:absolute;top:20%;left:50%;transform:translate(-50%)}.welcome-greeting{flex-direction:column;gap:4px;margin-bottom:40px;display:flex;position:relative}.greeting-hi{background:linear-gradient(135deg,#6366f1,#818cf8,#a855f7);-webkit-text-fill-color:transparent;letter-spacing:-.5px;-webkit-background-clip:text;background-clip:text;font-size:1.8rem;font-weight:700;line-height:1.2}.greeting-sub{color:var(--text-primary);letter-spacing:-.5px;font-size:1.8rem;font-weight:600;line-height:1.2}.welcome-actions{flex-direction:column;gap:6px;width:100%;display:flex}.w-action-row{cursor:pointer;text-align:left;background:#ffffff05;border:1px solid #0000;border-radius:14px;align-items:center;gap:16px;width:100%;padding:12px;font-family:inherit;transition:all .2s;display:flex}.w-action-row:hover{background:#6366f10f;border-color:#6366f11f}.w-action-row:active{opacity:.8;transform:scale(.98)}.w-action-icon{border:1px solid var(--border-color);width:40px;height:40px;color:var(--accent-light);background:#6366f10d;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;font-size:1rem;transition:all .25s;display:flex}.w-action-row:hover .w-action-icon{background:#6366f11f;border-color:#6366f14d;box-shadow:0 0 16px #6366f126}.w-action-text{color:var(--text-secondary);letter-spacing:-.2px;font-size:.95rem;font-weight:500;transition:color .2s}.w-action-row:hover .w-action-text{color:var(--text-primary)}.welcome-input-wrap{width:100%;max-width:780px;padding:12px 16px;padding-bottom:max(12px, env(safe-area-inset-bottom));flex-shrink:0;margin:0 auto;position:relative}@media (width>=769px){.welcome-input-wrap{max-width:680px}}.w-attach-bar{border-radius:var(--radius-md);color:var(--text-primary);background:#6366f10f;border:1px solid #6366f126;align-items:center;gap:8px;margin-bottom:8px;padding:8px 16px;font-size:.85rem;display:flex}.w-attach-bar i:first-child{color:var(--accent)}.w-attach-bar span{text-overflow:ellipsis;white-space:nowrap;flex:1;font-weight:500;overflow:hidden}.w-attach-bar button{color:var(--text-muted);cursor:pointer;background:0 0;border:none;padding:2px}.welcome-input-row{-webkit-backdrop-filter:blur(20px);border:1px solid var(--border-color);background:#0f101999;border-radius:32px;align-items:center;gap:6px;padding:6px 8px;transition:all .3s;display:flex}.welcome-input-row:focus-within{border-color:#6366f14d;box-shadow:0 0 0 3px #6366f10f,0 0 24px #6366f114}.w-plus-btn{width:36px;height:36px;color:var(--text-secondary);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:.95rem;transition:all .2s;display:flex}.w-plus-btn:hover{background:var(--hover-bg);color:var(--text-primary)}.w-input{color:var(--text-primary);background:0 0;border:none;outline:none;flex:1;min-width:0;padding:8px;font-family:inherit;font-size:1rem;font-weight:500}.w-input::placeholder{color:var(--text-muted);font-weight:400}.w-input:disabled{opacity:.5}.w-right-btns{flex-shrink:0;align-items:center;gap:4px;display:flex}.w-mic-btn{width:36px;height:36px;color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;font-size:1.05rem;transition:all .2s;display:flex}.w-mic-btn:hover{color:var(--text-primary);background:var(--hover-bg)}.w-voice-btn{background:linear-gradient(135deg, var(--accent), var(--accent-warm));cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:38px;height:38px;transition:all .3s;display:flex;box-shadow:0 0 20px #6366f140}.w-voice-btn:hover{transform:scale(1.05);box-shadow:0 0 30px #6366f159}.w-wave-bars{align-items:center;gap:2.5px;height:16px;display:flex}.w-wave-bars span{background:#fff;border-radius:2px;width:3px;animation:1.2s ease-in-out infinite waveBar}.w-wave-bars span:first-child{height:8px;animation-delay:0s}.w-wave-bars span:nth-child(2){height:14px;animation-delay:.15s}.w-wave-bars span:nth-child(3){height:10px;animation-delay:.3s}.w-wave-bars span:nth-child(4){height:6px;animation-delay:.45s}@keyframes waveBar{0%,to{transform:scaleY(.6)}50%{transform:scaleY(1.3)}}.w-send-btn{background:linear-gradient(135deg, var(--accent), var(--accent-warm));color:#fff;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:38px;height:38px;font-size:1rem;transition:all .3s;display:flex;box-shadow:0 0 20px #6366f140}.w-send-btn:hover{transform:scale(1.05);box-shadow:0 0 30px #6366f159}.w-tools-dropdown{background:var(--bg-elevated);-webkit-backdrop-filter:blur(28px);border:1px solid var(--border-color);border-radius:var(--radius-lg);min-width:240px;box-shadow:var(--shadow-elevated);z-index:50;padding:6px;animation:.2s fadeIn;position:absolute;bottom:calc(100% + 8px);left:16px}.w-tools-dropdown button{width:100%;color:var(--text-primary);cursor:pointer;text-align:left;background:0 0;border:none;border-radius:8px;align-items:center;gap:10px;padding:10px 14px;font-family:inherit;font-size:.88rem;transition:all .12s;display:flex}.w-tools-dropdown button:hover{background:var(--hover-bg)}.w-tools-dropdown button.active{color:var(--accent)}.w-tools-dropdown button i{text-align:center;width:18px;color:var(--text-muted);font-size:.85rem}.w-tools-dropdown button.active i{color:var(--accent)}.w-tools-divider{background:var(--border-color);height:1px;margin:4px 8px}@media (width<=500px){.greeting-hi,.greeting-sub{font-size:1.5rem}.welcome-center{padding:0 20px}.w-action-row{padding:10px 8px}.w-action-icon{width:36px;height:36px;font-size:.9rem}.w-action-text{font-size:.92rem}}.inline-classroom{border:1px solid var(--border-color,#ffffff1a);background:var(--surface-color,#1a1b1e);border-radius:12px;flex-direction:column;margin:16px 0;display:flex;overflow:hidden;box-shadow:0 4px 16px #0003}.ic-header{background:var(--surface-light,#25262b);border-bottom:1px solid var(--border-color,#ffffff1a);justify-content:space-between;align-items:center;padding:10px 14px;display:flex}.ic-title{color:var(--text-primary,#e4e5e8);align-items:center;gap:8px;font-size:13px;display:flex}.ic-title i{color:var(--accent-color,#0a84ff)}.ic-actions{align-items:center;gap:12px;display:flex}.ic-badge{align-items:center;gap:4px;font-size:11px;font-weight:600;display:flex}.ic-badge.generating{color:var(--accent-color,#0a84ff)}.ic-badge.error{color:#ff4d4f}.ic-badge.done{color:#52c41a}.ic-btn-expand{border:1px solid var(--border-color,#fff3);color:var(--text-secondary,#909296);cursor:pointer;background:0 0;border-radius:6px;align-items:center;gap:6px;padding:4px 10px;font-size:11px;transition:all .2s;display:flex}.ic-btn-expand:hover{background:var(--accent-color,#0a84ff);color:#fff;border-color:var(--accent-color,#0a84ff)}.ic-body{overscroll-behavior:contain;isolation:isolate;background:#090a0e;justify-content:center;align-items:center;height:400px;transition:background .3s;display:flex;position:relative}.ic-iframe{overscroll-behavior:contain;background:0 0;border:none;width:100%;height:100%;transition:opacity .3s}.ic-loading,.ic-error{color:var(--text-secondary,#909296);flex-direction:column;justify-content:center;align-items:center;gap:16px;font-size:13px;display:flex;position:absolute;inset:0}.ic-error{color:#ff4d4f}.ic-error i{font-size:24px}.ic-error button{color:#fff;cursor:pointer;background:#ff4d4f;border:none;border-radius:6px;margin-top:8px;padding:6px 16px}.ic-spinner{border:3px solid #0a84ff33;border-top-color:var(--accent-color,#0a84ff);border-radius:50%;width:32px;height:32px;animation:1s linear infinite ic-spin}@keyframes ic-spin{to{transform:rotate(360deg)}}.msg-row{margin-bottom:24px;animation:.3s cubic-bezier(.16,1,.3,1) slideUpFade;display:flex}.msg-user{justify-content:flex-end}.msg-user-bubble{-webkit-backdrop-filter:blur(20px);max-width:80%;color:var(--text-primary);word-break:break-word;white-space:pre-wrap;background:#1e1f28d9;border:1px solid #ffffff14;border-radius:20px 20px 4px;padding:14px 22px;font-size:1rem;font-weight:500;line-height:1.6;transition:all .3s;box-shadow:0 4px 16px #0003}.msg-user-bubble:hover{border-color:#6366f14d;box-shadow:0 8px 24px #0000004d,0 0 20px #6366f11a}.msg-bot{padding:4px 0}.msg-bot-content{flex:1;min-width:0}.msg-content{color:var(--text-primary);word-break:break-word;font-size:1rem;line-height:1.8}.msg-content .katex-display{background:#6366f10d;border:1px solid #6366f126;border-radius:12px;margin:16px 0;padding:16px 20px;overflow-x:auto;box-shadow:inset 0 0 20px #0003}.msg-content .katex-display>.katex{font-size:1.25em}.msg-content .katex{color:#e0e7ff;font-size:1.1em}.math-error{color:#ef4444;font-family:monospace;font-size:.9em}.gen-cursor{color:var(--accent);margin-left:2px;font-weight:800;animation:.8s infinite pulse}.msg-actions-row{opacity:.4;transition:opacity var(--transition);align-items:center;gap:6px;margin-top:12px;display:flex}.msg-bot:hover .msg-actions-row{opacity:1}.msg-copy-btn,.msg-dl-btn{color:var(--text-muted);cursor:pointer;background:#ffffff08;border:1px solid #0000;border-radius:8px;align-items:center;gap:6px;padding:6px 12px;font-family:inherit;font-size:.82rem;font-weight:500;transition:all .2s;display:flex}.msg-copy-btn:hover,.msg-dl-btn:hover{color:var(--text-primary);background:#ffffff14;border-color:#ffffff1a;transform:translateY(-1px)}.msg-copy-btn.done{color:#22c55e;background:#22c55e1a;border-color:#22c55e33}.msg-copy-btn svg,.msg-dl-btn svg{flex-shrink:0}@media (width<=768px){.msg-user-bubble{max-width:90%}.msg-actions-row{opacity:1}}.classroom-trigger-container{margin:20px 0;display:flex}.classroom-trigger-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#6366f1,#4f46e5);border:none;border-radius:12px;align-items:center;gap:10px;padding:12px 24px;font-size:.95rem;font-weight:600;transition:all .3s;display:flex;position:relative;overflow:hidden;box-shadow:0 4px 16px #6366f14d}.classroom-trigger-btn:before{content:"";background:linear-gradient(90deg,#0000,#fff3,#0000);width:100%;height:100%;transition:left .6s;position:absolute;top:0;left:-100%}.classroom-trigger-btn:hover:before{left:100%}.classroom-trigger-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px #6366f166}.canvas-card-container{-webkit-backdrop-filter:blur(20px);cursor:pointer;background:#0f101999;border:1px solid #ffffff14;border-radius:16px;justify-content:space-between;align-items:center;max-width:520px;margin:20px 0;padding:20px 24px;transition:all .3s cubic-bezier(.16,1,.3,1);display:flex;position:relative;overflow:hidden;box-shadow:0 8px 32px #0003}.canvas-card-container:hover{background:#0f1019d9;border-color:#6366f14d;transform:translateY(-4px);box-shadow:0 16px 48px #0006,0 0 30px #6366f11a}.canvas-card-container:after{content:"";pointer-events:none;background:linear-gradient(90deg,#fff0 0%,#ffffff0d 50%,#fff0 100%);width:50%;height:100%;animation:3s infinite glassShineSweep;position:absolute;top:0;left:-150%;transform:skew(-25deg)}.canvas-card-content{align-items:center;gap:16px;display:flex}.canvas-card-icon{color:#818cf8;background:#6366f11a;border:1px solid #6366f133;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;font-size:1.4rem;transition:all .3s;display:flex}.canvas-card-container:hover .canvas-card-icon{color:#a855f7;background:#6366f133;transform:scale(1.05)}.canvas-card-info{flex-direction:column;gap:4px;display:flex}.canvas-card-title{color:var(--text-primary);font-size:1rem;font-weight:700}.canvas-card-subtitle{color:var(--text-secondary);font-size:.85rem}.canvas-card-action{color:var(--text-primary);background:#ffffff0d;border-radius:20px;flex-shrink:0;align-items:center;gap:8px;padding:10px 20px;font-size:.85rem;font-weight:600;transition:all .3s;display:flex}.canvas-card-container:hover .canvas-card-action{background:var(--accent);color:#fff;transform:translate(-4px);box-shadow:0 4px 12px #6366f14d}.msg-buffering{background:#1e1f2880;border:1px solid #ffffff0d;border-radius:20px 20px 20px 4px;align-items:center;gap:12px;width:fit-content;padding:12px 20px;animation:.3s ease-out slideUpFade;display:flex;box-shadow:0 4px 16px #0000001a}.buf-infinity{filter:drop-shadow(0 0 4px #6366f166);justify-content:center;align-items:center;display:flex}.inf-path{stroke-dasharray:25 75;animation:1.5s linear infinite infSnake}@keyframes infSnake{to{stroke-dashoffset:-100px}}.buf-text{color:var(--text-secondary);letter-spacing:.5px;background:linear-gradient(90deg, var(--text-primary), var(--text-muted));-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:.95rem;font-weight:600;animation:1.5s ease-in-out infinite bufTextPulse}@keyframes bufTextPulse{0%,to{opacity:.7}50%{opacity:1}}.input-wrapper{background:var(--bg-dark);z-index:5;flex-shrink:0;padding:0 16px 16px;position:relative}.input-wrapper:before{content:"";background:linear-gradient(to top, var(--bg-dark), transparent);pointer-events:none;z-index:4;height:16px;position:absolute;top:-16px;left:0;right:0}.input-container{max-width:780px;margin:0 auto;position:relative}.attach-preview{border-radius:var(--radius-md);color:var(--text-primary);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#6366f114;border:1px solid #6366f133;align-items:center;gap:8px;margin-bottom:8px;padding:8px 14px;font-size:.82rem;animation:.2s fadeIn;display:flex}.attach-preview i:first-child{color:var(--accent-light)}.attach-preview span{text-overflow:ellipsis;white-space:nowrap;flex:1;font-weight:500;overflow:hidden}.attach-preview button{color:var(--text-muted);cursor:pointer;background:0 0;border:none;padding:2px 4px;font-size:.85rem;transition:color .2s}.attach-preview button:hover{color:var(--danger)}.input-main-row{-webkit-backdrop-filter:blur(20px);border:1px solid var(--border-color);background:#0f1019d9;border-radius:32px;align-items:center;gap:6px;padding:8px;transition:border-color .3s cubic-bezier(.25,.8,.25,1),box-shadow .3s cubic-bezier(.25,.8,.25,1);display:flex;box-shadow:0 8px 32px #0000004d}.input-main-row:focus-within{border-color:#6366f166;box-shadow:0 0 0 3px #6366f11a,0 8px 32px #6366f126}.input-plus-btn{width:38px;height:38px;color:var(--text-secondary);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:.95rem;transition:all .2s cubic-bezier(.25,.8,.25,1);display:flex}.input-plus-btn:hover{color:var(--text-primary);background:#ffffff0d}.main-input{color:var(--text-primary);resize:none;background:0 0;border:none;outline:none;flex:1;min-height:24px;max-height:120px;padding:8px 12px;font-family:inherit;font-size:1rem;font-weight:500;line-height:1.5}.main-input::placeholder{color:var(--text-muted);font-weight:400}.main-input:disabled{opacity:.5}.input-right-btns{flex-shrink:0;align-items:center;gap:6px;display:flex}.input-icon-btn{width:38px;height:38px;color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;font-size:1.05rem;transition:all .2s;display:flex}.input-icon-btn:hover{color:var(--text-primary);background:#ffffff0d}.voice-wave-btn{background:linear-gradient(135deg, var(--accent), var(--accent-warm));color:#fff;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;transition:all .3s cubic-bezier(.25,.8,.25,1);display:flex;position:relative;overflow:hidden;box-shadow:0 0 20px #6366f140}.voice-wave-btn:hover{transform:scale(1.05);box-shadow:0 0 30px #6366f166}.voice-wave-btn i{display:none}.wave-bars{align-items:center;gap:2.5px;height:16px;display:flex}.wave-bars span{background:#fff;border-radius:2px;width:3px;animation:1.2s ease-in-out infinite waveBar}.wave-bars span:first-child{height:8px;animation-delay:0s}.wave-bars span:nth-child(2){height:14px;animation-delay:.15s}.wave-bars span:nth-child(3){height:10px;animation-delay:.3s}.wave-bars span:nth-child(4){height:6px;animation-delay:.45s}.send-circle-btn{background:linear-gradient(135deg, var(--accent), var(--accent-warm));color:#fff;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;font-size:1rem;transition:all .3s cubic-bezier(.25,.8,.25,1);display:flex;box-shadow:0 0 20px #6366f140}.send-circle-btn:hover{transform:scale(1.05);box-shadow:0 0 30px #6366f166}.stop-btn{border:1px solid var(--border-color);color:var(--text-secondary);box-shadow:none;background:0 0}.stop-btn:hover{color:#ef4444;background:#ef44441a;border-color:#ef44444d;box-shadow:0 0 20px #ef444433}.tools-dropdown{-webkit-backdrop-filter:blur(28px);border:1px solid var(--border-color);border-radius:var(--radius-xl);min-width:240px;box-shadow:var(--shadow-elevated);z-index:50;background:#0f1019d9;padding:8px;animation:.25s cubic-bezier(.25,.8,.25,1) fadeIn;position:absolute;bottom:calc(100% + 12px);left:0}.tools-dropdown button{width:100%;color:var(--text-primary);cursor:pointer;text-align:left;background:0 0;border:none;border-radius:8px;align-items:center;gap:10px;padding:10px 14px;font-family:inherit;font-size:.88rem;transition:all .2s;display:flex}.tools-dropdown button:hover{background:#ffffff0d}.tools-dropdown button.active{color:var(--accent);background:#6366f10d}.tools-dropdown button i{text-align:center;width:18px;color:var(--text-muted);font-size:.85rem}.tools-dropdown button.active i{color:var(--accent)}.tools-divider{background:var(--border-color);height:1px;margin:4px 8px}@media (width<=480px){.input-main-row{padding:6px}}@media (width>=769px){.input-container{max-width:680px}}.chat-area{background:var(--bg-dark);flex-direction:column;flex:1;height:100%;display:flex;overflow:hidden}.chat-header{z-index:5;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#0a0b1499;flex-shrink:0;justify-content:space-between;align-items:center;min-height:48px;padding:10px 16px;display:flex;position:relative}.chat-header:after{content:"";background:linear-gradient(to bottom, var(--bg-dark), transparent);pointer-events:none;z-index:4;height:16px;position:absolute;bottom:-16px;left:0;right:0}.chat-header-left{align-items:center;gap:10px;display:flex}.menu-btn{color:var(--text-primary);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:6px 8px;font-size:1.1rem;transition:all .15s;display:none}@media (width<=768px){.menu-btn{display:flex}}.menu-btn:hover{background:var(--hover-bg)}.hb-mean{color:var(--text-primary);font-size:1.15rem;font-weight:700}.hb-ai{color:var(--accent);font-size:1.15rem;font-weight:700}.model-picker-wrap{position:relative}.model-picker-btn{cursor:pointer;background:0 0;border:none;border-radius:10px;align-items:center;gap:5px;padding:5px 10px;transition:all .15s;display:flex}.model-picker-btn:hover{background:var(--hover-bg)}.model-picker-current{color:var(--text-secondary);opacity:.8;margin-left:4px;font-size:.75rem;font-weight:500}.model-picker-arrow{color:var(--text-secondary);margin-left:2px;font-size:.55rem;transition:transform .2s}.model-picker-arrow.open{transform:rotate(180deg)}.model-picker-dropdown{background:var(--bg-elevated);border:1px solid var(--border-color);z-index:100;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:12px;min-width:240px;max-height:400px;padding:6px;animation:.15s dropIn;position:absolute;top:calc(100% + 6px);left:0;overflow-y:auto;box-shadow:0 16px 48px #00000080,0 0 0 1px #ffffff0a}@keyframes dropIn{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.mpd-group-label{text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);margin-top:2px;padding:8px 10px 4px;font-size:.65rem;font-weight:700}.mpd-group-label.premium{color:#a855f7}.mpd-item{width:100%;color:var(--text-primary);cursor:pointer;background:0 0;border:none;border-radius:8px;align-items:center;gap:8px;padding:8px 10px;font-family:inherit;font-size:.82rem;transition:all .12s;display:flex}.mpd-item:hover{background:var(--hover-bg)}.mpd-item.active{box-shadow:inset 2px 0 0 var(--accent);background:#6366f11a}.mpd-icon{text-align:center;width:20px;font-size:.9rem}.mpd-name{text-align:left;flex:1;font-weight:500}.mpd-badge{color:#a855f7;letter-spacing:.3px;background:#a855f71f;border-radius:8px;padding:2px 6px;font-size:.55rem;font-weight:700}.mpd-check{color:var(--accent);font-size:.7rem}.chat-header-right{align-items:center;gap:8px;display:flex}.header-icon-btn{width:36px;height:36px;color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;font-size:1rem;transition:all .15s;display:flex}.header-icon-btn:hover{background:var(--hover-bg);color:var(--text-primary)}.header-new-btn{border:1px solid var(--border-color);border-radius:var(--radius-full);color:var(--text-primary);cursor:pointer;background:0 0;align-items:center;gap:6px;padding:7px 14px;font-family:inherit;font-size:.82rem;font-weight:500;transition:all .15s;display:flex}.header-new-btn i{font-size:.75rem}.header-new-btn:hover{background:var(--hover-bg);border-color:var(--border-hover)}.welcome-centered{flex-direction:column;flex:1;justify-content:center;align-items:center;padding:0;display:flex;overflow:hidden}.chat-messages{-webkit-overflow-scrolling:touch;flex:1;padding:12px 0;overflow-y:auto}.messages-container{flex-direction:column;gap:4px;max-width:780px;margin:0 auto;padding:0 20px;display:flex}@media (width<=768px){.messages-container{padding:0 12px}}.profile-page{background:var(--bg-deep);flex:1;padding:0;display:flex;overflow-y:auto}.profile-container{flex-direction:column;width:100%;max-width:680px;margin:0 auto;padding:24px 20px 60px;animation:.4s cubic-bezier(.16,1,.3,1) slideUpFade;display:flex}.profile-header{justify-content:space-between;align-items:center;margin-bottom:24px;padding:12px 0;display:flex}.profile-back-btn{color:var(--text-primary);cursor:pointer;background:#ffffff0d;border:1px solid #0000;border-radius:12px;align-items:center;gap:8px;padding:8px 16px;font-family:inherit;font-size:.95rem;font-weight:600;transition:all .2s;display:flex}.profile-back-btn i{color:var(--accent-light);font-size:1.1rem}.profile-back-btn:hover{background:#6366f11a;border-color:#6366f133;transform:translate(-2px)}.profile-main{flex-direction:column;gap:32px;display:flex}.ios-section{flex-direction:column;display:flex}.ios-section-title{color:var(--text-muted);text-transform:uppercase;letter-spacing:.8px;margin-bottom:8px;padding-left:16px;font-size:.8rem;font-weight:700}.ios-section-footer{color:var(--text-muted);padding:8px 16px 0;font-size:.8rem;line-height:1.5}.ios-group{border-radius:var(--radius-xl);-webkit-backdrop-filter:blur(24px);background:#0f101999;border:1px solid #ffffff0f;overflow:hidden;box-shadow:0 8px 32px #0003}.ios-row{border-bottom:1px solid #ffffff0f;align-items:center;min-height:52px;padding:16px;display:flex}.ios-row:last-child{border-bottom:none}.profile-row{gap:16px;padding:20px 16px}.profile-card-avatar{background:linear-gradient(135deg, var(--accent), var(--accent-warm));color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:64px;height:64px;font-size:1.6rem;font-weight:700;display:flex;box-shadow:0 4px 16px #6366f14d}.profile-card-info h3{color:#fff;letter-spacing:-.02em;font-size:1.25rem;font-weight:700}.profile-card-info p{color:var(--text-secondary);margin-top:4px;font-size:.9rem}.field-row{flex-direction:column;align-items:flex-start;gap:8px;padding:12px 16px}.field-row label{color:var(--text-primary);font-size:.95rem;font-weight:600}.ios-input{width:100%;color:var(--text-secondary);background:0 0;border:none;outline:none;padding:8px 0;font-family:inherit;font-size:1rem;transition:color .2s}.ios-input:focus{color:#fff}.actions-section{gap:16px;margin-top:16px}.save-btn{background:linear-gradient(135deg, var(--accent), var(--accent-light));color:#fff;border-radius:var(--radius-lg);cursor:pointer;border:none;justify-content:center;align-items:center;padding:16px;font-size:1.1rem;font-weight:700;transition:all .3s;display:flex;box-shadow:0 8px 24px #6366f14d}.save-btn:hover{transform:translateY(-2px);box-shadow:0 12px 32px #6366f166}.logout-btn{color:#ef4444;border-radius:var(--radius-lg);cursor:pointer;background:#ef44441a;border:1px solid #ef444433;justify-content:center;align-items:center;padding:16px;font-size:1.1rem;font-weight:600;transition:all .2s;display:flex}.logout-btn:hover{color:#fff;background:#ef444433;border-color:#ef44444d}.theme-row{justify-content:center;gap:12px;padding:16px;display:flex}.theme-btn{border-radius:var(--radius-lg);color:var(--text-secondary);cursor:pointer;background:#ffffff08;border:1px solid #ffffff14;flex-direction:column;flex:1;align-items:center;gap:8px;padding:16px 12px;font-family:inherit;font-size:.85rem;font-weight:600;transition:all .2s;display:flex}.theme-btn i{margin-bottom:4px;font-size:1.4rem}.theme-btn:hover{color:var(--text-primary);background:#ffffff14;transform:translateY(-2px)}.theme-btn.active{border-color:var(--accent);color:var(--accent);background:#6366f11a;box-shadow:0 4px 16px #6366f133}body.light-theme .theme-btn{background:#00000008;border-color:#0000001a}body.light-theme .theme-btn:hover{background:#0000000f}body.light-theme .theme-btn.active{border-color:var(--accent);background:#6366f11a}.api-key-display{border-radius:var(--radius-md);background:#0003;border:1px solid #ffffff0d;justify-content:space-between;align-items:center;width:100%;margin-bottom:12px;padding:12px;display:flex}.api-key-text{color:var(--accent-light);letter-spacing:.5px;font-family:JetBrains Mono,monospace;font-size:.95rem}.copy-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;padding:4px;transition:color .2s}.copy-btn:hover{color:#fff}.delete-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;padding:4px;transition:color .2s}.delete-btn:hover{color:#ef4444}.api-key-actions{align-items:center;gap:8px;display:flex}.api-key-info{flex-direction:column;gap:2px;display:flex}.api-key-name{color:#fff;font-size:.95rem;font-weight:600}.api-key-date{color:var(--text-muted);font-size:.75rem}.generate-key-btn{color:var(--accent-light);border-radius:var(--radius-md);cursor:pointer;background:#6366f11a;border:1px solid #6366f133;justify-content:center;align-items:center;width:100%;padding:12px 16px;font-weight:600;transition:all .2s;display:flex}.generate-key-btn:hover{background:#6366f133;transform:translateY(-1px)}.voice-overlay{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:500;background:#000000d9;justify-content:center;align-items:center;animation:.25s fadeIn;display:flex;position:fixed;inset:0}.voice-modal{background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius-xl);flex-direction:column;align-items:center;gap:20px;width:90%;max-width:400px;padding:40px 28px 32px;display:flex;position:relative}.voice-close{color:var(--text-muted);cursor:pointer;transition:all var(--transition);background:0 0;border:none;border-radius:8px;padding:6px 8px;font-size:1.1rem;position:absolute;top:14px;right:14px}.voice-close:hover{color:var(--text-primary);background:var(--hover-bg)}.voice-visual{width:140px;height:140px;position:relative}.voice-rings{width:100%;height:100%;position:relative}.voice-ring{border:2px solid var(--accent);opacity:.15;border-radius:50%;transition:all .3s;position:absolute}.voice-ring.r1{inset:0}.voice-ring.r2{opacity:.25;inset:15px}.voice-ring.r3{opacity:.35;inset:30px}.voice-rings.listening .voice-ring{animation:1.5s ease-in-out infinite voicePulse}.voice-rings.listening .voice-ring.r2{animation-delay:.2s}.voice-rings.listening .voice-ring.r3{animation-delay:.4s}.voice-rings.speaking .voice-ring{opacity:.4;border-color:var(--success);animation:.8s ease-in-out infinite voicePulse}.voice-rings.speaking .voice-ring.r2{animation-delay:.15s}.voice-rings.speaking .voice-ring.r3{animation-delay:.3s}.voice-rings.thinking .voice-ring{opacity:.2;animation:2s linear infinite voiceSpin}@keyframes voicePulse{0%,to{opacity:.15;transform:scale(1)}50%{opacity:.4;transform:scale(1.08)}}@keyframes voiceSpin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.voice-center{background:linear-gradient(135deg, var(--accent), var(--accent-warm));color:#fff;border-radius:50%;justify-content:center;align-items:center;font-size:1.6rem;display:flex;position:absolute;inset:40px;box-shadow:0 4px 24px #e8913a4d}.voice-status{color:var(--text-secondary);text-transform:capitalize;font-size:.95rem;font-weight:600}.voice-transcript,.voice-response{border-radius:var(--radius-md);width:100%;padding:12px 16px;font-size:.88rem;line-height:1.5}.voice-transcript{background:var(--accent-soft);border:1px solid var(--border-color)}.voice-response{background:#4ade800f;border:1px solid #4ade8026}.voice-label{text-transform:uppercase;letter-spacing:.5px;color:var(--accent);margin-bottom:4px;font-size:.68rem;font-weight:700;display:block}.voice-response .voice-label{color:var(--success)}.voice-transcript p,.voice-response p{color:var(--text-primary);margin:0}.voice-actions{margin-top:4px}.voice-mic-btn{background:var(--card-bg);border:none;border:2px solid var(--border-color);width:56px;height:56px;color:var(--text-secondary);cursor:pointer;transition:all var(--transition);border-radius:50%;justify-content:center;align-items:center;font-size:1.3rem;display:flex}.voice-mic-btn:hover{border-color:var(--accent);color:var(--accent);box-shadow:0 0 20px #e8913a26}.voice-mic-btn.active{background:var(--danger);border-color:var(--danger);color:#fff;animation:1s infinite pulse}.voice-mic-btn.thinking{opacity:.5;cursor:default}.tc-overlay{background:var(--bg-dark);z-index:400;touch-action:auto;-webkit-overflow-scrolling:touch;justify-content:center;align-items:center;width:100%;height:100%;animation:.25s fadeIn;display:flex;position:fixed;top:0;left:0;overflow:hidden}.tc-overlay.tc-presentation{flex-direction:column;overflow:hidden}.tc-particle-grid{z-index:0;pointer-events:none;position:fixed;inset:0;overflow:hidden}.tc-particle-grid .tc-particle{background:#e8913a1f;border-radius:50%;width:2px;height:2px;position:absolute;box-shadow:0 0 4px #e8913a14}.tc-particle-grid .tc-particle:nth-child(4n){background:#60a5fa1a;box-shadow:0 0 4px #60a5fa0f}.tc-particle-grid .tc-particle:nth-child(7n){background:#fbbf241a;width:3px;height:3px}.tc-block-reveal{opacity:0;animation:.5s forwards blockSlideIn;transform:translateY(18px)}.tc-block-reveal:first-child{animation-delay:.1s}.tc-block-reveal:nth-child(2){animation-delay:.6s}.tc-block-reveal:nth-child(3){animation-delay:1.1s}.tc-block-reveal:nth-child(4){animation-delay:1.6s}.tc-block-reveal:nth-child(5){animation-delay:2.1s}.tc-block-reveal:nth-child(6){animation-delay:2.6s}.tc-block-reveal:nth-child(7){animation-delay:3.1s}.tc-block-reveal:nth-child(8){animation-delay:3.6s}.tc-block-reveal:nth-child(9){animation-delay:4.1s}.tc-block-reveal:nth-child(10){animation-delay:4.6s}@keyframes blockSlideIn{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}.tc-setup-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius-xl);width:92%;max-width:520px;max-height:90vh;padding:36px 28px;animation:.3s fadeIn;position:relative;overflow-y:auto}.tc-close-x{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:6px 8px;font-size:1.1rem;position:absolute;top:14px;right:14px}.tc-close-x:hover{color:var(--text-primary);background:var(--hover-bg)}.tc-setup-top{text-align:center;margin-bottom:24px}.tc-setup-emoji{margin-bottom:8px;font-size:2.8rem}.tc-setup-top h2{font-size:1.4rem;font-weight:700}.tc-setup-top p{color:var(--text-secondary);margin-top:4px;font-size:.88rem}.tc-method-badge{color:var(--accent-light);letter-spacing:.3px;background:linear-gradient(135deg,#e8913a1a,#fbbf241a);border:1px solid #e8913a33;border-radius:20px;align-items:center;gap:6px;margin-top:12px;padding:6px 16px;font-size:.72rem;font-weight:600;display:inline-flex}.tc-setup-form{flex-direction:column;gap:14px;display:flex}.tc-field{flex-direction:column;gap:5px;display:flex}.tc-field label{color:var(--text-secondary);align-items:center;gap:4px;font-size:.78rem;font-weight:600;display:flex}.tc-field input,.tc-field select{border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--input-bg);color:var(--text-primary);outline:none;padding:12px 14px;font-family:inherit;font-size:.9rem}.tc-field input:focus,.tc-field select:focus{border-color:var(--accent)}.tc-field-row{grid-template-columns:1fr 1fr;gap:10px;display:grid}.tc-field input[type=range]{accent-color:var(--accent);padding:4px 0}.tc-label-hint{color:var(--text-muted);font-size:.72rem;font-weight:400}.tc-label-optional{color:var(--text-muted);font-size:.72rem;font-style:italic;font-weight:500}.tc-label-hint-block{color:var(--text-muted);margin-top:-2px;margin-bottom:2px;font-size:.72rem}.tc-file-upload-area{margin-top:2px}.tc-upload-options{grid-template-columns:1fr 1fr;gap:10px;display:grid}.tc-file-dropzone{border:2px dashed var(--border-color);border-radius:var(--radius-md);background:var(--bg-secondary);cursor:pointer;text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:6px;padding:20px 14px;transition:all .2s;display:flex}.tc-file-dropzone:hover{border-color:var(--accent);background:#e8913a0a}.tc-file-dropzone i{color:var(--accent);opacity:.7;font-size:1.4rem}.tc-file-dropzone span{color:var(--text-secondary);font-size:.82rem;font-weight:500}.tc-camera-btn{border-radius:var(--radius-md);cursor:pointer;text-align:center;background:#8b5cf60a;border:2px dashed #8b5cf64d;flex-direction:column;justify-content:center;align-items:center;gap:6px;padding:20px 14px;transition:all .2s;display:flex}.tc-camera-btn:hover{background:#8b5cf614;border-color:#8b5cf699}.tc-camera-btn i{color:#8b5cf6;opacity:.8;font-size:1.4rem}.tc-camera-btn span{color:var(--text-secondary);font-size:.82rem;font-weight:500}.tc-file-hint{color:var(--text-muted)!important;font-size:.68rem!important;font-weight:400!important}.tc-file-attached{border-radius:var(--radius-md);background:#e8913a0f;border:1px solid #e8913a33;justify-content:space-between;align-items:center;padding:12px 14px;animation:.2s fadeIn;display:flex}.tc-file-info{align-items:center;gap:10px;display:flex}.tc-file-info>i{color:var(--accent);font-size:1.3rem}.tc-file-details{flex-direction:column;gap:2px;display:flex}.tc-file-name{color:var(--text-primary);text-overflow:ellipsis;white-space:nowrap;max-width:200px;font-size:.85rem;font-weight:600;overflow:hidden}.tc-file-type-badge{text-transform:uppercase;color:var(--accent);letter-spacing:.5px;font-size:.68rem;font-weight:600}.tc-file-extracting{border-radius:var(--radius-md);background:#e8913a0f;border:1px solid #e8913a26;align-items:center;gap:12px;padding:18px 16px;animation:.2s fadeIn;display:flex}.tc-extract-spinner{border:2px solid var(--border-color);border-top-color:var(--accent);border-radius:50%;flex-shrink:0;width:22px;height:22px;animation:.7s linear infinite spin}.tc-extract-status{color:var(--text-secondary);font-size:.82rem;font-weight:500}.tc-file-meta-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.tc-extract-result{color:var(--text-muted);font-size:.68rem;font-weight:500}.tc-file-info>i.fa-file-pdf{color:#ef4444}.tc-file-info>i.fa-file-word{color:#3b82f6}.tc-file-info>i.fa-file-image{color:#8b5cf6}.tc-file-remove{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:6px 8px;font-size:.9rem}.tc-file-remove:hover{color:var(--danger);background:#f871711a}.tc-file-type-selector{flex-wrap:wrap;align-items:center;gap:6px;margin-top:8px;display:flex}.tc-file-type-selector>span{color:var(--text-muted);font-size:.75rem;font-weight:500}.tc-file-type-selector button{border:1px solid var(--border-color);color:var(--text-secondary);cursor:pointer;background:0 0;border-radius:14px;padding:4px 12px;font-family:inherit;font-size:.75rem;transition:all .15s}.tc-file-type-selector button:hover{background:var(--hover-bg);border-color:var(--border-hover)}.tc-file-type-selector button.active{border-color:var(--accent);color:var(--accent);background:#e8913a1f;font-weight:600}.tc-start-btn{border-radius:var(--radius-md);background:linear-gradient(135deg, var(--accent), var(--accent-warm));color:#fff;cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;margin-top:6px;padding:14px;font-family:inherit;font-size:1rem;font-weight:600;transition:all .15s;display:flex;box-shadow:0 4px 16px #e8913a4d}.tc-start-btn:hover{transform:translateY(-1px);box-shadow:0 6px 22px #e8913a66}.tc-loading-card{text-align:center;flex-direction:column;align-items:center;gap:16px;display:flex}.tc-loading-card h3{color:var(--text-primary);font-size:1.2rem}.tc-loading-card p{color:var(--text-secondary);font-size:.9rem}.tc-loading-file{opacity:.8;color:var(--accent)!important;font-size:.82rem!important}.tc-loading-hint{opacity:.9;background:#fbbf241a;border-radius:4px;padding:4px 10px;font-style:italic;color:#fbbf24!important;font-size:.8rem!important}.tc-loading-spinner{border:3px solid var(--border-color);border-top-color:var(--accent);border-radius:50%;width:48px;height:48px;animation:.8s linear infinite spin}.tc-loading-spinner.small{border-width:2px;width:32px;height:32px}@keyframes spin{to{transform:rotate(360deg)}}.tc-complete-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius-xl);text-align:center;width:92%;max-width:440px;padding:40px 28px;animation:.3s fadeIn}.tc-complete-emoji{margin-bottom:12px;font-size:3.2rem}.tc-complete-card h2{margin-bottom:8px;font-size:1.5rem}.tc-complete-card p{color:var(--text-secondary);margin-bottom:24px;font-size:.92rem;line-height:1.6}.tc-complete-actions{flex-direction:column;gap:10px;display:flex}.tc-download-btn{border-radius:var(--radius-md);background:linear-gradient(135deg, var(--accent), var(--accent-warm));color:#fff;cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;padding:14px;font-family:inherit;font-size:.95rem;font-weight:600;display:flex;box-shadow:0 4px 16px #e8913a4d}.tc-download-btn:hover{transform:translateY(-1px)}.tc-restart-btn,.tc-close-btn{border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);cursor:pointer;background:0 0;justify-content:center;align-items:center;gap:8px;padding:12px;font-family:inherit;font-size:.9rem;transition:all .15s;display:flex}.tc-restart-btn:hover,.tc-close-btn:hover{background:var(--hover-bg)}.tc-pres-header{z-index:2;background:#000000e6;border-bottom:1px solid #ffffff0f;flex-shrink:0;align-items:center;gap:12px;width:100%;padding:10px 16px;display:flex;position:relative}.tc-pres-back{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:6px 8px;font-size:1rem}.tc-pres-back:hover{background:var(--hover-bg);color:var(--text-primary)}.tc-pres-info{flex:1;overflow:hidden}.tc-pres-subject{color:var(--accent);text-transform:uppercase;letter-spacing:.5px;font-size:.68rem;font-weight:600;display:block}.tc-pres-topic{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:.92rem;font-weight:600;overflow:hidden}.tc-pres-method-badge{letter-spacing:1.2px;color:var(--accent);white-space:nowrap;background:linear-gradient(135deg,#e8913a26,#fbbf2426);border:1px solid #e8913a40;border-radius:12px;padding:3px 10px;font-size:.68rem;font-weight:700}.tc-pres-meta{align-items:center;gap:12px;display:flex}.tc-pres-timer{color:var(--text-secondary);font-variant-numeric:tabular-nums;align-items:center;gap:4px;font-size:.85rem;font-weight:700;display:flex}.tc-pres-timer.warn{color:var(--danger)}.tc-pres-slide-num{color:var(--text-muted);background:var(--hover-bg);border-radius:6px;padding:2px 8px;font-size:.78rem;font-weight:600}.tc-pres-speaking{font-size:1rem;animation:1s infinite pulse}@keyframes pulse{0%,to{opacity:.6}50%{opacity:1}}.tc-progress-bar{z-index:2;background:#000000e6;flex-shrink:0;gap:4px;width:100%;padding:8px 16px;display:flex;position:relative}.tc-progress-dot{background:var(--border-color);cursor:pointer;border-radius:2px;flex:1;height:4px;transition:background .2s}.tc-progress-dot.done{background:var(--accent);opacity:.5}.tc-progress-dot.active{background:var(--accent)}.tc-progress-dot:hover{opacity:.8}.tc-split-board{flex:1;grid-template-columns:1fr 340px;width:100%;min-height:0;display:grid;overflow:hidden}.tc-board-left{z-index:1;background:#000000d9;border-right:1px solid #ffffff0f;padding:24px;transition:all .3s;position:relative;overflow-y:auto}.tc-hw{border-radius:4px;padding:0 1px;transition:transform .12s,background .12s;display:inline-block}.tc-hw.tc-hw-active{color:#fff!important;background:#3b82f6d9!important;border:2px solid #60a5fae6!important;border-radius:6px!important;margin:0 1px!important;padding:1px 4px!important;animation:.2s ease-out hw-pop!important;box-shadow:0 0 10px #3b82f659,0 0 3px #3b82f640!important}@keyframes hw-pop{0%{transform:scale(1)}50%{transform:scale(1.08)}to{transform:scale(1)}}.tc-board-right{z-index:1;background:#000000eb;flex-direction:column;padding:0;display:flex;position:relative;overflow-y:auto}.tc-media-header{border-bottom:1px solid var(--border-color);background:var(--bg-secondary);z-index:2;padding:16px 18px 12px;position:sticky;top:0}.tc-media-header h3{color:var(--text-primary);align-items:center;gap:8px;font-size:.9rem;font-weight:700;display:flex}.tc-media-header h3 i{color:var(--accent);font-size:.85rem}.tc-media-hint{color:var(--text-muted);margin-top:2px;font-size:.72rem;display:block}.tc-media-loading{color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:40px 20px;font-size:.85rem;display:flex}.tc-media-content{flex-direction:column;gap:18px;padding:12px 14px;display:flex}.tc-media-section h4{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;align-items:center;gap:6px;margin-bottom:10px;font-size:.78rem;font-weight:700;display:flex}.tc-media-section h4 i{font-size:.82rem}.tc-media-section h4 .fab.fa-youtube{color:#f44}.tc-media-section h4 .fas.fa-tags{color:var(--accent)}.tc-media-section h4 .fas.fa-image{color:#60a5fa}.tc-media-section h4 .fas.fa-graduation-cap{color:var(--accent)}.tc-media-section h4 .fas.fa-code{color:#10b981}.tc-code-workspace{border-radius:var(--radius-md);scrollbar-width:thin;scrollbar-color:#fff3 transparent;background:#1e1e1e;border:1px solid #ffffff1a;padding:12px;overflow-x:auto;box-shadow:inset 0 2px 10px #0000004d}.tc-code-workspace pre{white-space:pre-wrap;margin:0}.tc-code-workspace code{color:#d4d4d4;font-family:Fira Code,Consolas,monospace;font-size:.82rem;line-height:1.5}.tc-code-workspace.active{border-color:#10b98166;transition:all .3s;box-shadow:inset 0 0 20px #10b9811a}.tc-live-header{color:#888;text-transform:uppercase;letter-spacing:1px;border-bottom:1px solid #ffffff0d;align-items:center;gap:6px;margin-bottom:12px;padding-bottom:8px;font-size:.72rem;font-weight:700;display:flex}.tc-live-header.active{color:#10b981}.tc-live-header.active i{animation:1s infinite pulse}.tc-live-code-block{background:#0000004d;border-left:3px solid #0000;border-radius:6px;padding:12px}.tc-live-code-block.active{background:#10b9810d;border-color:#10b981}.tc-live-details{color:#d4d4d4;background:#ffffff05;border:1px solid #ffffff0d;border-radius:8px;margin-top:16px;padding:14px;font-size:.88rem;line-height:1.6}.tc-live-details strong{color:#10b981}.tc-live-table-wrapper{background:#0003;border-radius:8px;overflow:hidden}.tc-live-table-wrapper table{border-collapse:collapse;width:100%;font-size:.82rem}.tc-live-table-wrapper th,.tc-live-table-wrapper td{text-align:left;border:1px solid #ffffff0f;padding:8px 12px}.tc-live-table-wrapper th{color:var(--accent);background:#ffffff0a}.tc-live-row-active{font-weight:600;box-shadow:inset 0 0 10px #10b9814d;background:#10b98133!important}.tc-live-row-active td{color:#fff}.tc-youtube-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;align-items:flex-start;gap:10px;margin-bottom:8px;padding:10px 12px;text-decoration:none;transition:all .15s;display:flex}.tc-youtube-card:hover{background:#ff44440a;border-color:#ff44444d;transform:translateY(-1px);box-shadow:0 4px 12px #00000026}.tc-yt-thumb{background:linear-gradient(135deg,#f44,#c00);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:42px;height:42px;display:flex}.tc-yt-thumb i{color:#fff;font-size:1.1rem}.tc-yt-info{flex-direction:column;gap:3px;min-width:0;display:flex}.tc-yt-title{color:var(--text-primary);-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;font-size:.82rem;font-weight:600;line-height:1.3;display:-webkit-box;overflow:hidden}.tc-yt-desc{color:var(--text-muted);-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;font-size:.72rem;line-height:1.3;display:-webkit-box;overflow:hidden}.tc-yt-embed-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius-md);margin-bottom:14px;animation:.3s fadeIn;overflow:hidden}.tc-yt-embed-wrapper{background:#000;width:100%;padding-bottom:56.25%;position:relative}.tc-yt-embed-wrapper iframe{border:none;width:100%;height:100%;position:absolute;top:0;left:0}.tc-yt-embed-info{flex-direction:column;gap:2px;padding:8px 12px;display:flex}.tc-yt-embed-info .tc-yt-title{-webkit-line-clamp:1;line-clamp:1;font-size:.78rem}.tc-yt-channel{color:var(--text-muted);font-size:.68rem;font-weight:500}.tc-api-key-row{align-items:center;gap:8px;display:flex}.tc-api-key-row input{border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--input-bg);color:var(--text-primary);outline:none;flex:1;padding:10px 14px;font-family:inherit;font-size:.85rem}.tc-api-key-row input:focus{border-color:var(--accent)}.tc-api-key-check{flex-shrink:0;font-size:1rem}.tc-key-link{color:var(--accent);font-weight:500;text-decoration:underline}.tc-key-link:hover{color:var(--accent-light)}.tc-api-hint{border-radius:var(--radius-md);background:#60a5fa0f;border:1px solid #60a5fa1f;padding:12px 14px}.tc-api-hint p{color:var(--text-muted);align-items:center;gap:6px;font-size:.78rem;line-height:1.5;display:flex}.tc-api-hint p i{color:#60a5fa;flex-shrink:0;font-size:.85rem}.tc-real-images{flex-direction:column;gap:10px;display:flex}.tc-real-image-card{border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--card-bg);animation:.3s fadeIn;overflow:hidden}.tc-real-image-card img{object-fit:cover;width:100%;max-height:180px;display:block}.tc-img-caption{color:var(--text-muted);border-top:1px solid var(--border-color);padding:6px 10px;font-size:.72rem;line-height:1.3;display:block}.tc-key-terms{flex-wrap:wrap;gap:6px;display:flex}.tc-term-chip{color:var(--accent-light);white-space:nowrap;background:#e8913a1a;border:1px solid #e8913a33;border-radius:14px;padding:4px 12px;font-size:.75rem;font-weight:600}.tc-image-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;align-items:center;gap:10px;margin-bottom:8px;padding:10px 12px;text-decoration:none;transition:all .15s;display:flex}.tc-image-card:hover{background:#60a5fa0a;border-color:#60a5fa4d;transform:translateY(-1px)}.tc-image-card i{color:#60a5fa;flex-shrink:0;font-size:.9rem}.tc-image-card span{color:var(--text-primary);font-size:.82rem;font-weight:500}.tc-dsecar-legend{background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:14px}.tc-legend-items{grid-template-columns:1fr 1fr;gap:6px;display:grid}.tc-legend-item{color:var(--text-secondary);align-items:center;gap:8px;font-size:.78rem;font-weight:500;display:flex}.tc-legend-letter{background:linear-gradient(135deg, var(--accent), var(--accent-warm));color:#fff;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;width:22px;height:22px;font-size:.7rem;font-weight:800;display:flex}.tc-pres-loading{height:100%;color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;gap:12px;display:flex}.tc-pres-slide{max-width:800px;margin:0 auto;animation:.35s fadeIn}.tc-slide-title-bar{border-bottom:2px solid var(--border-color);margin-bottom:24px;padding-bottom:16px}.tc-slide-title-row{align-items:center;gap:8px;margin-bottom:10px;display:flex}.tc-slide-badge{text-transform:uppercase;color:var(--accent);letter-spacing:1px;background:var(--accent-soft);border-radius:4px;padding:3px 10px;font-size:.68rem;font-weight:700;display:inline-block}.tc-dsecar-badge{color:var(--accent-light);letter-spacing:.8px;background:linear-gradient(135deg,#e8913a1a,#fbbf2414);border:1px solid #e8913a33;border-radius:4px;align-items:center;gap:4px;padding:3px 10px;font-size:.65rem;font-weight:700;display:inline-flex}.tc-slide-title{color:var(--text-primary);letter-spacing:-.5px;font-size:1.75rem;font-weight:800;line-height:1.3}.tc-slide-subtitle{color:var(--text-secondary);margin-top:6px;font-size:1rem;font-weight:400}.tc-slide-body{color:var(--text-primary);font-size:.95rem;line-height:1.8}.tc-slide-body h1{color:var(--accent-light);letter-spacing:-.3px;margin:20px 0 10px;font-size:1.5rem;font-weight:700}.tc-slide-body h2{color:var(--text-primary);border-bottom:1px solid #e8913a26;margin:16px 0 8px;padding-bottom:6px;font-size:1.15rem;font-weight:700}.tc-slide-body h3{color:var(--text-secondary);margin:12px 0 6px;font-size:1rem;font-weight:600}.tc-slide-body p{margin:8px 0}.tc-slide-body strong{color:var(--accent-light)}.tc-slide-body pre{border:1px solid var(--border-color);background:#0d0d0d;border-radius:12px;margin:12px 0;padding:16px;font-size:.88rem;overflow-x:auto}.tc-slide-body code{font-family:Fira Code,Consolas,monospace}.tc-slide-body ul,.tc-slide-body ol{margin:8px 0;padding-left:20px}.tc-slide-body li{margin:4px 0}.tc-slide-body blockquote{border-left:3px solid var(--accent);background:var(--accent-soft);color:var(--text-secondary);border-radius:0 8px 8px 0;margin:12px 0;padding:8px 16px}.tc-doubt-answer{border-radius:var(--radius-md);background:#60a5fa0f;border:1px solid #60a5fa26;max-width:800px;margin:20px auto 0;padding:16px 20px;animation:.3s fadeIn}.tc-doubt-answer h4{color:var(--info);margin-bottom:8px;font-size:.9rem}.tc-doubt-answer button{border:1px solid var(--border-color);color:var(--text-muted);cursor:pointer;background:0 0;border-radius:6px;margin-top:12px;padding:6px 14px;font-family:inherit;font-size:.8rem}.tc-doubt-answer button:hover{background:var(--hover-bg)}.tc-pres-controls{z-index:2;background:#000000e6;border-top:1px solid #ffffff0f;flex-shrink:0;width:100%;padding:12px 16px;position:relative}.tc-nav-bar{align-items:center;gap:8px;max-width:800px;margin:0 auto;display:flex}.tc-nav-btn{border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--card-bg);color:var(--text-primary);cursor:pointer;white-space:nowrap;align-items:center;gap:6px;padding:10px 18px;font-family:inherit;font-size:.88rem;font-weight:500;transition:all .15s;display:flex}.tc-nav-btn:hover{background:var(--hover-bg);border-color:var(--border-hover)}.tc-nav-btn:disabled{opacity:.3;cursor:default}.tc-nav-btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}.tc-nav-btn.primary:hover{box-shadow:0 2px 12px #e8913a4d}.tc-center-btns{flex:1;justify-content:center;gap:6px;display:flex}.tc-ctrl-btn{border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;background:0 0;align-items:center;gap:5px;padding:8px 14px;font-family:inherit;font-size:.82rem;font-weight:500;transition:all .12s;display:flex}.tc-ctrl-btn:hover{background:var(--hover-bg);color:var(--text-primary)}.tc-ctrl-btn.end{color:var(--danger);border-color:#f8717133}.tc-ctrl-btn.end:hover{background:#f871710f}.tc-doubt-bar{gap:8px;max-width:800px;margin:0 auto;display:flex}.tc-doubt-bar input{border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--input-bg);color:var(--text-primary);outline:none;flex:1;padding:10px 14px;font-family:inherit;font-size:.9rem}.tc-doubt-bar input:focus{border-color:var(--accent)}.tc-doubt-send,.tc-doubt-cancel{border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--card-bg);color:var(--text-secondary);cursor:pointer;padding:10px 14px;font-size:.9rem}.tc-doubt-send{color:var(--accent)}.tc-doubt-send:hover,.tc-doubt-cancel:hover{background:var(--hover-bg)}@media (width<=900px){.tc-split-board{grid-template-rows:1fr min-content;grid-template-columns:1fr}.tc-board-left{border-right:none;border-bottom:2px solid var(--border-color)}.tc-board-right{border-top:1px solid var(--border-color);min-height:240px;max-height:none}.tc-media-content{scroll-snap-type:x mandatory;flex-direction:row;gap:16px;padding-bottom:24px;overflow-x:auto}.tc-media-section{scroll-snap-align:start;flex-shrink:0;min-width:280px;max-width:320px}.tc-media-header{border-bottom:none;padding-bottom:8px}}@media (width<=600px){.tc-ctrl-btn span{display:none}.tc-slide-title{font-size:1.3rem}.tc-nav-bar{gap:4px}.tc-pres-method-badge{display:none}.tc-split-board{grid-template-columns:1fr}.tc-board-right{min-height:220px}.tc-board-left{padding:16px 14px}.tc-legend-items{grid-template-columns:1fr 1fr 1fr}.tc-media-section{min-width:85vw}}.tc-board-left,.tc-board-right{scrollbar-width:thin!important;scrollbar-color:var(--border-color) transparent!important}.tc-board-left::-webkit-scrollbar{width:5px!important;display:block!important}.tc-board-right::-webkit-scrollbar{width:5px!important;display:block!important}.tc-board-left::-webkit-scrollbar-track{background:0 0}.tc-board-right::-webkit-scrollbar-track{background:0 0}.tc-board-left::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:3px}.tc-board-right::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:3px}.tc-board-left::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.tc-board-right::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@media (width<=900px){.tc-overlay>[style*="position: absolute"]{-webkit-overflow-scrolling:touch}.tc-overlay>iframe{touch-action:none}}@media (pointer:coarse){.tc-board-left,.tc-board-right{-webkit-overflow-scrolling:touch;touch-action:pan-x pan-y}.tc-overlay [style*=overflowY],.tc-overlay [style*=overflow-y]{-webkit-overflow-scrolling:touch;touch-action:pan-y}}.ppt-overlay{-webkit-backdrop-filter:blur(12px);z-index:300;background:#06060eb3;justify-content:center;align-items:center;animation:.3s cubic-bezier(.16,1,.3,1) fadeIn;display:flex;position:fixed;inset:0}.ppt-modal{border-radius:var(--radius-xl);width:90%;max-width:540px;box-shadow:var(--shadow-elevated);background:#0f1019d9;border:1px solid #ffffff14;padding:36px 32px;animation:.4s cubic-bezier(.16,1,.3,1) scaleIn;position:relative;overflow:hidden}.ppt-modal:before{content:"";filter:blur(40px);pointer-events:none;z-index:0;background:radial-gradient(circle,#f59e0b1f,#0000 70%);width:250px;height:250px;position:absolute;top:-60px;right:-60px}.ppt-close{color:var(--text-muted);cursor:pointer;z-index:10;background:#ffffff0d;border:1px solid #0000;border-radius:50%;justify-content:center;align-items:center;padding:8px;font-size:1.1rem;transition:all .2s;display:flex;position:absolute;top:16px;right:16px}.ppt-close:hover{color:var(--text-primary);background:#ffffff1a;border-color:#ffffff26;transform:scale(1.05)}.ppt-header{text-align:center;z-index:1;margin-bottom:28px;position:relative}.ppt-icon{background:linear-gradient(135deg,#f59e0b,#ef4444);-webkit-text-fill-color:transparent;filter:drop-shadow(0 4px 12px #f59e0b4d);-webkit-background-clip:text;background-clip:text;margin-bottom:12px;font-size:2.4rem;display:inline-block}.ppt-header h2{letter-spacing:-.02em;color:var(--text-primary);margin-bottom:6px;font-size:1.4rem;font-weight:800}.ppt-header p{color:var(--text-secondary);font-size:.9rem;line-height:1.5}.ppt-form{z-index:1;flex-direction:column;gap:20px;display:flex;position:relative}.ppt-form input{border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);background:#ffffff08;outline:none;padding:14px 18px;font-family:inherit;font-size:.95rem;font-weight:500;transition:all .3s}.ppt-form input:focus{background:#f59e0b0d;border-color:#f59e0b;box-shadow:0 0 0 3px #f59e0b1a}.ppt-form input::placeholder{color:var(--text-muted);font-weight:400}.ppt-count-row,.ppt-templates{flex-direction:column;gap:10px;display:flex}.ppt-count-row label,.ppt-templates label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.8px;font-size:.75rem;font-weight:700}.ppt-count-btns{gap:8px;display:flex}.ppt-count-btns button{border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;background:#ffffff05;border:1px solid #ffffff14;flex:1;padding:10px;font-family:inherit;font-size:.9rem;font-weight:600;transition:all .2s}.ppt-count-btns button.active{color:#f59e0b;background:#f59e0b1a;border-color:#f59e0b;box-shadow:inset 0 0 10px #f59e0b1a}.ppt-count-btns button:hover:not(.active){color:var(--text-primary);background:#ffffff0d;border-color:#fff3}.ppt-template-grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.ppt-template-card{cursor:pointer;color:#fff;border:2px solid #0000;border-radius:12px;align-items:flex-end;height:64px;padding:10px 14px;font-size:.8rem;font-weight:700;transition:all .25s;display:flex;position:relative;overflow:hidden}.ppt-template-card:after{content:"";pointer-events:none;background:linear-gradient(#0000,#0009);height:50%;position:absolute;bottom:0;left:0;right:0}.ppt-template-card span{z-index:1;position:relative}.ppt-template-card.selected{border-color:#f59e0b;transform:scale(1.02);box-shadow:0 0 20px #f59e0b4d}.ppt-generate-btn{border-radius:var(--radius-md);color:#fff;cursor:pointer;background:linear-gradient(135deg,#f59e0b,#ef4444);border:none;justify-content:center;align-items:center;gap:10px;margin-top:8px;padding:16px;font-family:inherit;font-size:1.05rem;font-weight:700;transition:all .3s;display:flex;position:relative;overflow:hidden;box-shadow:0 8px 24px #f59e0b4d}.ppt-generate-btn:before{content:"";background:linear-gradient(90deg,#0000,#fff3,#0000);width:100%;height:100%;transition:left .6s;position:absolute;top:0;left:-100%}.ppt-generate-btn:hover:not(:disabled):before{left:100%}.ppt-generate-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 12px 32px #f59e0b66}.ppt-generate-btn:disabled{opacity:.8;cursor:wait;box-shadow:none;background:linear-gradient(135deg,#b45309,#991b1b)}.music-overlay{-webkit-backdrop-filter:blur(12px);z-index:300;background:#06060eb3;justify-content:center;align-items:center;animation:.3s cubic-bezier(.16,1,.3,1) fadeIn;display:flex;position:fixed;inset:0}.music-modal{border-radius:var(--radius-xl);width:90%;max-width:440px;box-shadow:var(--shadow-elevated);background:#0f1019d9;border:1px solid #ffffff14;padding:32px 28px;animation:.4s cubic-bezier(.16,1,.3,1) scaleIn;position:relative;overflow:hidden}.music-modal:before{content:"";filter:blur(40px);pointer-events:none;z-index:0;background:radial-gradient(circle,#a855f726,#0000 70%);width:200px;height:200px;position:absolute;top:-50px;left:-50px}.music-close{color:var(--text-muted);cursor:pointer;z-index:10;background:#ffffff0d;border:1px solid #0000;border-radius:50%;justify-content:center;align-items:center;padding:8px;font-size:1.1rem;transition:all .2s;display:flex;position:absolute;top:16px;right:16px}.music-close:hover{color:var(--text-primary);background:#ffffff1a;border-color:#ffffff26;transform:scale(1.05)}.music-header{text-align:center;z-index:1;margin-bottom:24px;position:relative}.music-icon{background:linear-gradient(135deg,#a855f7,#6366f1);-webkit-text-fill-color:transparent;filter:drop-shadow(0 4px 12px #a855f74d);-webkit-background-clip:text;background-clip:text;margin-bottom:12px;font-size:2.2rem;display:inline-block}.music-header h2{letter-spacing:-.02em;color:var(--text-primary);font-size:1.35rem;font-weight:800}.music-search{z-index:1;gap:10px;margin-bottom:20px;display:flex;position:relative}.music-search input{border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);background:#ffffff08;outline:none;flex:1;padding:12px 16px;font-family:inherit;font-size:.95rem;transition:all .3s}.music-search input:focus{background:#a855f70d;border-color:#a855f7;box-shadow:0 0 0 3px #a855f71a}.music-search button{border-radius:var(--radius-md);color:#fff;cursor:pointer;background:linear-gradient(135deg,#a855f7,#6366f1);border:none;padding:12px 18px;transition:all .2s;box-shadow:0 4px 16px #a855f740}.music-search button:hover{transform:translateY(-2px);box-shadow:0 6px 24px #a855f759}.music-player-area{border:1px solid var(--border-color);z-index:1;background:#000;border-radius:14px;margin-bottom:20px;position:relative;overflow:hidden;box-shadow:0 8px 32px #0006}.music-quick-list{z-index:1;flex-direction:column;gap:8px;display:flex;position:relative}.music-quick-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.8px;margin-bottom:4px;font-size:.75rem;font-weight:700}.music-quick-btn{border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;text-align:left;background:#ffffff05;border:1px solid #0000;align-items:center;gap:12px;padding:12px 16px;font-family:inherit;font-size:.9rem;font-weight:500;transition:all .2s;display:flex}.music-quick-btn i{color:#a855f7;background:#a855f71a;border-radius:50%;justify-content:center;align-items:center;padding:6px;font-size:.8rem;display:flex}.music-quick-btn:hover{color:var(--text-primary);background:#a855f70f;border-color:#a855f733;transform:translate(4px)}.code-canvas{background:#0d1117;border-left:1px solid #ffffff14;flex-direction:column;height:100%;animation:.3s cubic-bezier(.25,.8,.25,1) canvasSlideIn;display:flex;overflow:hidden}@keyframes canvasSlideIn{0%{opacity:0;transform:translate(40px)}to{opacity:1;transform:translate(0)}}.cc-header{background:#161b22;border-bottom:1px solid #ffffff14;flex-shrink:0;justify-content:space-between;align-items:center;gap:4px;min-height:40px;padding:6px 8px;display:flex;overflow:hidden}.cc-header-left{color:#e6edf3;flex:1;align-items:center;gap:6px;min-width:0;display:flex;overflow:hidden}.cc-title{white-space:nowrap;text-overflow:ellipsis;max-width:120px;font-size:.82rem;font-weight:600;overflow:hidden}.cc-lang-badge{color:#58a6ff;letter-spacing:.5px;background:#58a6ff1f;border-radius:4px;flex-shrink:0;padding:2px 7px;font-size:.62rem;font-weight:700}.cc-editing-badge{color:#f0c040;font-size:.68rem;font-weight:600;animation:1.2s infinite editPulse}@keyframes editPulse{0%,to{opacity:1}50%{opacity:.5}}.cc-header-right{flex-shrink:0;align-items:center;gap:2px;display:flex}.cc-version-nav{border-right:1px solid #ffffff1a;align-items:center;gap:2px;margin-right:6px;padding-right:8px;display:flex}.cc-version-label{color:#8b949e;text-align:center;min-width:36px;font-size:.68rem;font-weight:600}.cc-icon-btn{color:#8b949e;cursor:pointer;background:0 0;border:none;border-radius:6px;justify-content:center;align-items:center;width:28px;height:28px;transition:all .15s;display:flex}.cc-icon-btn:hover{color:#e6edf3;background:#ffffff1a}.cc-icon-btn:disabled{opacity:.3;cursor:not-allowed}.cc-icon-btn.active{color:#58a6ff;background:#58a6ff26}.cc-icon-btn.copied{color:#3ecb8e}.cc-close-btn:hover{color:#ff453a;background:#ff453a26}.cc-action-btn{color:#3ecb8e;cursor:pointer;white-space:nowrap;background:#2ea04326;border:1px solid #2ea0434d;border-radius:6px;align-items:center;gap:5px;padding:5px 12px;font-family:inherit;font-size:.75rem;font-weight:600;transition:all .15s;display:flex}.cc-action-btn:hover{color:#fff;background:#2ea0434d;border-color:#2ea04380}.cc-action-btn.running{color:#ff9a3e;cursor:wait;background:#ff961e26;border-color:#ff961e4d}.cc-body{flex-direction:column;flex:1;display:flex;overflow:hidden}.cc-editor-pane{flex-direction:column;flex:1;min-height:200px;display:flex;position:relative;overflow:hidden}.cc-editor-wrap{flex:1;display:flex;overflow:hidden}.cc-line-numbers{color:#484f58;text-align:right;-webkit-user-select:none;user-select:none;background:#0d1117;border-right:1px solid #ffffff0f;flex-shrink:0;width:42px;padding:16px 0;font-family:Fira Code,Courier New,monospace;font-size:.82rem;line-height:1.6;overflow:hidden}.cc-line-numbers div{height:1.6em;padding:0 10px 0 0}.cc-editor-container{flex:1;position:relative;overflow:hidden}.cc-editor{color:#e6edf3;resize:none;white-space:pre;tab-size:2;caret-color:#58a6ff;z-index:2;background:0 0;border:none;outline:none;width:100%;height:100%;padding:16px 16px 16px 12px;font-family:Fira Code,Courier New,monospace;font-size:.82rem;line-height:1.6;position:relative;overflow-y:auto}.cc-editor::placeholder{color:#484f58}.cc-highlight-overlay{pointer-events:none;z-index:1;position:absolute;top:16px;left:0;right:0}.cc-highlight-line{border-left:3px solid #0000;width:100%;height:1.6em;transition:background 2s,border-color 2s}.cc-highlight-line.highlighted{background:#f0c0401f;border-left-color:#f0c040;animation:3s forwards highlightFade}@keyframes highlightFade{0%{background:#f0c0402e;border-left-color:#f0c040}60%{background:#f0c0401a;border-left-color:#f0c040}to{background:0 0;border-left-color:#0000}}.cc-stream-container{scroll-behavior:smooth;flex:1;padding:16px 16px 16px 12px;overflow-y:auto}.cc-stream-line{color:#e6edf3;white-space:pre;border-left:3px solid #0000;min-height:1.6em;padding:0 4px;font-family:Fira Code,Courier New,monospace;font-size:.82rem;line-height:1.6;transition:background .3s}.cc-stream-line.changed{background:#2ea0431a;border-left-color:#3ecb8e}.cc-stream-container>.cc-typing-cursor{vertical-align:text-bottom;background:#58a6ff;width:2px;height:1.1em;margin-left:1px;animation:.6s step-end infinite cursorBlink;display:inline-block}@keyframes cursorBlink{0%,to{opacity:1}50%{opacity:0}}.cc-dirty-indicator{color:#ff9a3e;background:#ff961e1a;border-top:1px solid #ff961e33;justify-content:space-between;align-items:center;padding:4px 12px;font-size:.7rem;display:flex}.cc-dirty-indicator button{color:#ff9a3e;cursor:pointer;background:#ff961e33;border:1px solid #ff961e4d;border-radius:4px;padding:2px 10px;font-family:inherit;font-size:.68rem;transition:all .15s}.cc-dirty-indicator button:hover{color:#fff;background:#ff961e59}.cc-preview-pane{flex-direction:column;flex:1;height:100%;display:flex}.cc-preview-body{flex:1;position:relative;overflow:auto}.cc-preview-loading{color:#8b949e;align-items:center;gap:10px;padding:20px;font-size:.82rem;display:flex}.cc-spinner{border:2px solid #3ecb8e33;border-top-color:#3ecb8e;border-radius:50%;width:16px;height:16px;animation:.8s linear infinite spin}.cc-preview-iframe{background:#fff;border:none;width:100%;height:100%}.cc-output-text{color:#c9d1d9;white-space:pre-wrap;word-break:break-word;margin:0;padding:16px;font-family:Fira Code,Courier New,monospace;font-size:.82rem;line-height:1.6}.cc-output-text.error{color:#ff7b72}.cc-preview-empty{color:#484f58;justify-content:center;align-items:center;height:100%;font-size:.82rem;display:flex}@media (width<=768px){.code-canvas{z-index:1000;border-left:none;animation:.3s canvasMobileSlideUp;position:fixed;inset:0}@keyframes canvasMobileSlideUp{0%{opacity:0;transform:translateY(100%)}to{opacity:1;transform:translateY(0)}}}.mc-overlay{z-index:9000;background:var(--bg-deep);flex-direction:column;font-family:Inter,-apple-system,sans-serif;animation:.3s cubic-bezier(.16,1,.3,1) fadeIn;display:flex;position:fixed;inset:0}.mc-topbar{border-bottom:1px solid var(--border-color);-webkit-backdrop-filter:blur(20px);z-index:10;background:#06060ecc;justify-content:space-between;align-items:center;padding:12px 20px;display:flex;position:relative}.mc-topbar-left{align-items:center;gap:12px;display:flex}.mc-logo{width:42px;height:42px;color:var(--accent-light);background:linear-gradient(135deg,#6366f11a,#a855f71a);border:1px solid #6366f133;border-radius:12px;justify-content:center;align-items:center;font-size:1.2rem;display:flex;box-shadow:0 4px 16px #0000004d,inset 0 0 12px #6366f11a}.mc-brand-wrap{flex-direction:column;display:flex}.mc-brand{color:#fff;letter-spacing:.5px;font-size:.95rem;font-weight:800}.mc-sub{color:var(--text-muted);font-size:.72rem;font-weight:500}.mc-topic-badge{color:var(--accent-light);background:#6366f11a;border:1px solid #6366f14d;border-radius:20px;align-items:center;gap:8px;padding:6px 16px;font-size:.8rem;font-weight:700;display:flex;box-shadow:0 0 16px #6366f126}.mc-topbar-right{align-items:center;gap:10px;display:flex}.mc-topbar-btn{color:var(--text-secondary);cursor:pointer;background:#ffffff0a;border:1px solid #ffffff14;border-radius:10px;padding:8px 16px;font-family:inherit;font-size:.85rem;font-weight:600;transition:all .2s}.mc-topbar-btn:hover{color:#fff;background:#ffffff1a}.mc-topbar-btn.close-btn{color:#f87171;background:#ef44441a;border-color:#ef444433}.mc-topbar-btn.close-btn:hover{color:#fff;background:#ef444433}.mc-classroom{flex:1;display:flex;position:relative;overflow:hidden}.mc-canvas-left{z-index:1;flex-direction:column;flex:1;gap:16px;padding:24px;display:flex;position:relative;overflow-y:auto}.mc-canvas-left:before{content:"";pointer-events:none;z-index:-1;background:radial-gradient(circle,#6366f10a,#0000 60%);width:600px;height:600px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.mc-canvas-card{background:var(--glass-bg);border:1px solid var(--border-color);border-radius:var(--radius-xl);-webkit-backdrop-filter:blur(16px);box-shadow:var(--shadow-elevated);flex:1;padding:32px;position:relative;overflow-y:auto}.mc-canvas-title{letter-spacing:-.02em;margin:0 0 6px;font-size:1.5rem;font-weight:800}.mc-canvas-desc{color:var(--text-secondary);margin:0 0 24px;font-size:.9rem;line-height:1.5}.mc-visual-area{min-height:100px;max-height:360px;padding:16px 0;overflow:hidden}.mc-empty-state{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:400px;padding:40px 20px;display:flex}.mc-hero-icon{background:linear-gradient(135deg,#3b82f6,#8b5cf6);-webkit-text-fill-color:transparent;filter:drop-shadow(0 10px 20px #6366f14d);-webkit-background-clip:text;margin-bottom:16px;font-size:4rem;animation:4s ease-in-out infinite floatSlow}.mc-hero-title{color:#fff;letter-spacing:-.02em;margin:0 0 12px;font-size:1.8rem;font-weight:800}.mc-hero-sub{color:var(--text-secondary);max-width:460px;margin:0 0 32px;font-size:.95rem;line-height:1.6}.mc-subject-grid{grid-template-columns:repeat(4,1fr);gap:16px;width:100%;max-width:600px;display:grid}.mc-subject-card{cursor:pointer;color:var(--text-secondary);background:#ffffff05;border:1px solid #ffffff0f;border-radius:16px;flex-direction:column;align-items:center;gap:10px;padding:20px 12px;font-family:inherit;transition:all .3s cubic-bezier(.16,1,.3,1);display:flex}.mc-subject-card:hover{color:#fff;background:#6366f114;border-color:#6366f14d;transform:translateY(-4px);box-shadow:0 12px 30px #0006,0 0 20px #6366f126}.mc-subject-icon{margin-bottom:4px;font-size:2rem;transition:transform .3s}.mc-subject-card:hover .mc-subject-icon{color:var(--accent-light);transform:scale(1.1)}.mc-subject-label{font-size:.8rem;font-weight:600}.mc-classes-right{border-left:1px solid var(--border-color);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:2;background:#0a0b14f2;flex-direction:column;width:320px;display:flex}.mc-classes-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:20px;display:flex}.mc-classes-title{color:#fff;letter-spacing:.5px;font-size:.95rem;font-weight:700}.mc-save-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#6366f1,#4f46e5);border:none;border-radius:10px;padding:8px 16px;font-family:inherit;font-size:.8rem;font-weight:600;transition:all .2s;box-shadow:0 4px 12px #6366f140}.mc-save-btn:hover{transform:translateY(-1px);box-shadow:0 6px 16px #6366f166}.mc-classes-list{flex-direction:column;flex:1;gap:10px;padding:16px;display:flex;overflow-y:auto}.mc-classes-empty{color:var(--text-muted);text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:8px;padding:30px;font-size:.9rem;display:flex}.mc-class-item{cursor:pointer;background:#ffffff08;border:1px solid #ffffff0d;border-radius:12px;align-items:center;gap:12px;padding:14px 16px;transition:all .2s;display:flex}.mc-class-item:hover{background:#ffffff0f;border-color:#ffffff1a;transform:translate(4px)}.mc-class-icon{color:var(--accent-light);flex-shrink:0;font-size:1.4rem}.mc-class-info{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.mc-class-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:.88rem;font-weight:600;overflow:hidden}.mc-class-date{color:var(--text-muted);font-size:.72rem}.mc-topic-form{gap:10px;padding:16px 0 0;display:flex}.mc-prompt-input{color:#fff;background:#ffffff08;border:1px solid #ffffff1a;border-radius:14px;outline:none;flex:1;padding:14px 20px;font-family:inherit;font-size:.95rem;transition:all .3s}.mc-prompt-input:focus{border-color:var(--accent);background:#6366f10d;box-shadow:0 0 0 3px #6366f11a}.mc-prompt-submit{color:#fff;cursor:pointer;background:linear-gradient(135deg,#6366f1,#4f46e5);border:none;border-radius:14px;min-width:56px;padding:14px 24px;font-family:inherit;font-size:1.05rem;font-weight:700;transition:all .2s;box-shadow:0 4px 16px #6366f14d}.mc-prompt-submit:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 24px #6366f166}.mc-prompt-submit:disabled{opacity:.6;cursor:not-allowed;box-shadow:none;transform:none}.mc-math-board{flex-direction:column;gap:0;padding:16px 0 24px;display:flex}.mc-math-entry{padding:10px 0;animation:.4s cubic-bezier(.16,1,.3,1) both revealUp}.mc-math-label{color:var(--text-secondary);padding:8px 0 6px;font-size:.95rem;font-weight:500}.mc-math-eq{text-align:center;padding:12px 20px}.mc-math-eq-line{letter-spacing:1px;color:var(--text-primary);font-family:Georgia,Times New Roman,serif;font-size:1.3rem;font-weight:600;line-height:2}.mc-math-answer-box{border:2px solid var(--accent);text-align:center;background:#6366f114;border-radius:12px;max-width:480px;margin:30px auto 16px;padding:18px 48px;animation:.5s cubic-bezier(.16,1,.3,1) scaleIn;box-shadow:0 0 30px #6366f126}.mc-math-answer-text{color:#fff;letter-spacing:1px;font-family:Georgia,Times New Roman,serif;font-size:1.5rem;font-weight:800}.mc-loading-avatar{background:linear-gradient(135deg,#6366f1,#a855f7);-webkit-text-fill-color:transparent;filter:drop-shadow(0 0 20px #6366f166);-webkit-background-clip:text;font-size:3rem;animation:1.5s ease-in-out infinite pulse}.mc-loading-dots{justify-content:center;gap:8px;margin-top:16px;display:flex}.mc-loading-dots span{background:var(--accent-light);width:12px;height:12px;box-shadow:0 0 10px var(--accent);border-radius:50%;animation:1.4s ease-in-out infinite mcDotBounce}.mc-loading-dots span:nth-child(2){animation-delay:.2s}.mc-loading-dots span:nth-child(3){animation-delay:.4s}@keyframes mcDotBounce{0%,to{opacity:.3;transform:translateY(0)}50%{opacity:1;transform:translateY(-12px)}}@media (width<=900px){.mc-classroom{flex-direction:column}.mc-classes-right{border-left:none;border-top:1px solid var(--border-color);width:100%;height:35%}.mc-subject-grid{grid-template-columns:repeat(2,1fr)}}.landing-page{--bg-dark:#030307;--bg-card:#0a0a1299;--bg-glass:#0a0a1273;--border-glass:#ffffff0b;--border-glow:#6366f140;--color-indigo:#6366f1;--color-purple:#a855f7;--color-cyan:#22d3ee;--color-blue:#3b82f6;--color-green:#10b981;--font-primary:"Inter", -apple-system, BlinkMacSystemFont, sans-serif;--transition-smooth:all .5s cubic-bezier(.16, 1, .3, 1);--transition-fast:all .2s ease;font-family:var(--font-primary);z-index:9999;position:fixed;inset:0;overflow:hidden;color:#f0f0f5!important;background:#030307!important}body.light-theme .landing-page{color:#f0f0f5!important;background:#030307!important}.landing-scroll-container{scroll-behavior:smooth;scrollbar-width:none;height:100%;overflow:hidden auto}.landing-scroll-container::-webkit-scrollbar{display:none}.cursor-glow{pointer-events:none;z-index:1;will-change:left, top;mix-blend-mode:screen;background:radial-gradient(circle,#6366f112 0%,#0000 65%);border-radius:50%;width:700px;height:700px;position:fixed;transform:translate(-50%,-50%)}.landing-bg{pointer-events:none;z-index:0;position:fixed;inset:0}.bg-noise{opacity:.02;mix-blend-mode:overlay;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3联%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");position:absolute;inset:0}.bg-grid{background-image:linear-gradient(#ffffff04 1px,#0000 1px),linear-gradient(90deg,#ffffff04 1px,#0000 1px);background-size:60px 60px;position:absolute;inset:0;-webkit-mask-image:radial-gradient(80% 80% at 50% 30%,#000 20%,#0000 80%);mask-image:radial-gradient(80% 80% at 50% 30%,#000 20%,#0000 80%)}.bg-glow-orb{filter:blur(160px);opacity:.45;mix-blend-mode:screen;border-radius:50%;position:absolute}.bg-orb-indigo{background:radial-gradient(circle,#6366f126,#0000 70%);width:800px;height:800px;animation:20s ease-in-out infinite alternate orbDrift;top:-20%;left:10%}.bg-orb-purple{background:radial-gradient(circle,#a855f71a,#0000 70%);width:600px;height:600px;animation:25s ease-in-out infinite alternate-reverse orbDrift;bottom:10%;right:-5%}.bg-orb-cyan{background:radial-gradient(circle,#22d3ee14,#0000 70%);width:500px;height:500px;animation:18s ease-in-out infinite alternate orbDrift;top:40%;left:-10%}@keyframes orbDrift{0%{transform:translate(0)scale(1)}50%{transform:translate(60px,-40px)scale(1.1)}to{transform:translate(-30px,50px)scale(.95)}}.bg-particles{position:absolute;inset:0}.bg-particle{opacity:.15;filter:blur(1px);background:#fff;border-radius:50%;animation:8s linear infinite floatUp;position:absolute}@keyframes floatUp{0%{opacity:0;transform:translateY(100vh)scale(.5)}10%{opacity:.4}90%{opacity:.4}to{opacity:0;transform:translateY(-10vh)scale(1.2)}}.landing-nav{z-index:1000;transition:var(--transition-smooth);position:fixed;top:16px;left:0;right:0}.nav-container{max-width:1200px;margin:0 auto;padding:0 16px}.nav-inner{-webkit-backdrop-filter:blur(20px)saturate(190%);border:1px solid var(--border-glass);transition:var(--transition-smooth);background:#08081066;border-radius:20px;justify-content:space-between;align-items:center;padding:10px 24px;display:flex;box-shadow:0 10px 40px -15px #000c}.nav-scrolled .nav-inner{background:#06060cb3;border-color:#ffffff14;padding:6px 20px;box-shadow:0 12px 50px -10px #6366f126}.nav-brand{align-items:center;gap:12px;display:flex;position:relative}.logo-glow-effect{background:var(--color-indigo);filter:blur(18px);opacity:.3;pointer-events:none;border-radius:50%;width:45px;height:45px;position:absolute;top:50%;left:20px;transform:translate(-50%,-50%)}.nav-logo-img{object-fit:cover;width:38px;height:38px;transition:var(--transition-smooth);border:1px solid #ffffff1a;border-radius:10px}.nav-brand:hover .nav-logo-img{border-color:var(--color-indigo);transform:rotate(5deg)scale(1.05)}.nav-logo-text{letter-spacing:-.03em;color:#fff;align-items:center;gap:4px;font-size:1.25rem;font-weight:800;display:flex}.accent-text-glow{background:linear-gradient(135deg,#a855f7,#6366f1);-webkit-text-fill-color:transparent;filter:drop-shadow(0 0 10px #6366f166);-webkit-background-clip:text;background-clip:text;font-weight:900}.nav-links{align-items:center;gap:28px;display:flex}.nav-link{color:#94a3b8;transition:var(--transition-fast);padding:6px 2px;font-size:.88rem;font-weight:500;text-decoration:none;position:relative}.nav-link:hover{color:#fff}.nav-link-indicator{background:linear-gradient(90deg, var(--color-indigo), var(--color-cyan));transform-origin:50%;border-radius:4px;height:2px;transition:transform .3s cubic-bezier(.16,1,.3,1);position:absolute;bottom:0;left:0;right:0;transform:scaleX(0)}.nav-link:hover .nav-link-indicator{transform:scaleX(1)}.nav-btn-premium{background:linear-gradient(135deg, var(--color-indigo), var(--color-purple));color:#fff;cursor:pointer;transition:var(--transition-smooth);border:none;border-radius:12px;align-items:center;gap:8px;padding:8px 18px;font-size:.85rem;font-weight:600;display:flex;position:relative;overflow:hidden;box-shadow:0 4px 20px -5px #6366f166}.nav-btn-premium:hover{transform:translateY(-1.5px);box-shadow:0 8px 30px -5px #6366f199}.nav-btn-premium:after{content:"";background:linear-gradient(90deg,#0000,#fff3,#0000);transition:transform .6s;position:absolute;inset:0;transform:translate(-100%)}.nav-btn-premium:hover:after{transform:translate(100%)}.hero-container{z-index:2;grid-template-columns:1.1fr .9fr;align-items:center;gap:48px;max-width:1200px;min-height:100vh;margin:0 auto;padding:140px 32px 80px;display:grid;position:relative}.hero-left{text-align:left;flex-direction:column;align-items:flex-start;display:flex}.trust-badge-row{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#ffffff08;border:1px solid #ffffff0d;border-radius:100px;align-items:center;gap:12px;margin-bottom:24px;padding:6px 14px;display:flex}.badge-pulse{background:var(--color-cyan);border-radius:50%;width:8px;height:8px;position:relative}.badge-pulse:after{content:"";background:var(--color-cyan);border-radius:50%;animation:1.8s infinite pulseGlow;position:absolute;inset:0}@keyframes pulseGlow{0%{opacity:.8;transform:scale(1)}to{opacity:0;transform:scale(2.8)}}.trust-badge-text{color:#94a3b8;letter-spacing:.05em;text-transform:uppercase;font-size:.78rem;font-weight:600}.hero-main-title{letter-spacing:-.04em;color:#fff;margin-bottom:20px;font-size:clamp(2.6rem,5vw,4.5rem);font-weight:800;line-height:1.08}.text-gradient-purple-cyan{background:linear-gradient(135deg,#a855f7 10%,#6366f1 50%,#22d3ee 90%);-webkit-text-fill-color:transparent;background-size:200%;-webkit-background-clip:text;background-clip:text;animation:6s linear infinite shinyGradient}@keyframes shinyGradient{0%{background-position:0%}50%{background-position:100%}to{background-position:0%}}.hero-description{color:#94a3b8;max-width:540px;margin-bottom:36px;font-size:1.1rem;line-height:1.65}.hero-cta-buttons{gap:16px;margin-bottom:48px;display:flex}.btn-glowing{background:linear-gradient(135deg, var(--color-indigo), var(--color-blue));color:#fff;cursor:pointer;transition:var(--transition-smooth);border:1px solid #ffffff14;border-radius:14px;align-items:center;gap:8px;padding:14px 28px;font-family:inherit;font-size:.95rem;font-weight:600;display:flex;box-shadow:0 0 30px #6366f159}.btn-glowing:hover{transform:translateY(-2px);box-shadow:0 0 45px #6366f18c}.btn-glass{color:#cbd5e1;cursor:pointer;transition:var(--transition-smooth);background:#ffffff08;border:1px solid #ffffff14;border-radius:14px;align-items:center;gap:8px;padding:14px 28px;font-family:inherit;font-size:.95rem;font-weight:500;display:flex}.btn-glass:hover{color:#fff;background:#ffffff0f;border-color:#ffffff2e}.dev-proof-row{align-items:center;gap:16px;display:flex}.proof-avatars{margin-right:-4px;display:flex}.proof-avatar{border:2px solid var(--bg-dark);width:32px;height:32px;color:var(--color-cyan);transition:var(--transition-fast);background:#1e1b4b;border-radius:50%;justify-content:center;align-items:center;margin-right:-8px;font-size:.7rem;font-weight:700;display:flex}.proof-avatar:hover{z-index:10;transform:translateY(-4px)}.proof-info{flex-direction:column;display:flex}.proof-stars{color:#f59e0b;gap:2px;margin-bottom:2px;display:flex}.proof-text{color:#64748b;font-size:.78rem;font-weight:500}.proof-highlight{color:#cbd5e1;font-weight:600}.floating-widgets-container{flex-wrap:wrap;gap:16px;width:100%;margin-top:36px;display:flex}.mini-widget{background:var(--bg-glass);border:1px solid var(--border-glass);-webkit-backdrop-filter:blur(12px);transition:var(--transition-smooth);border-radius:16px;align-items:center;gap:12px;padding:12px 18px;display:flex;box-shadow:0 4px 20px #0006}.mini-widget:hover{border-color:#6366f133;transform:translateY(-4px);box-shadow:0 10px 30px #6366f114}.widget-icon-wrap{border-radius:10px;justify-content:center;align-items:center;width:36px;height:36px;font-size:1rem;display:flex}.widget-text{flex-direction:column;display:flex}.widget-value{color:#fff;font-size:.95rem;font-weight:700}.widget-label{color:#64748b;font-size:.7rem;font-weight:500}.hero-right{flex-direction:column;gap:20px;width:100%;display:flex}.ide-workspace{border:1px solid var(--border-glass);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#08080ecc;border-radius:20px;flex-direction:column;height:520px;transition:border-color .3s;display:flex;overflow:hidden;box-shadow:0 30px 70px #000000d9}.ide-header{border-bottom:1px solid var(--border-glass);background:#ffffff04;justify-content:space-between;align-items:center;padding:14px 20px;display:flex}.ide-window-dots{gap:8px;display:flex}.ide-dot{border-radius:50%;width:10px;height:10px}.ide-dot-close{background:#ef4444}.ide-dot-min{background:#eab308}.ide-dot-max{background:#22c55e}.ide-tabs{gap:8px;margin-left:20px;display:flex}.ide-tab{color:#475569;cursor:pointer;transition:var(--transition-fast);background:0 0;border:none;border-radius:6px;align-items:center;gap:6px;padding:4px 8px;font-size:.78rem;font-weight:500;display:flex}.ide-tab.active{color:var(--color-indigo);background:#6366f114}.ide-status{color:#64748b;align-items:center;gap:6px;font-size:.72rem;font-weight:500;display:flex}.ide-status-pulse{background:var(--color-green);border-radius:50%;width:6px;height:6px;animation:1.5s infinite pulseGlow}.ide-body{flex:1;display:flex;overflow:hidden}.ide-sidebar{border-right:1px solid var(--border-glass);color:#334155;background:#0003;flex-direction:column;align-items:center;gap:20px;width:45px;padding:16px 0;display:flex}.ide-sidebar-icon{cursor:pointer;transition:var(--transition-fast)}.ide-sidebar-icon:hover,.ide-sidebar-icon.active{color:var(--color-indigo)}.ide-code-panel{border-right:1px solid var(--border-glass);background:#0000001a;flex-direction:column;flex:1.1;display:flex;overflow-y:auto}.ide-code-container{margin:0;padding:20px;font-family:JetBrains Mono,Fira Code,monospace;font-size:.85rem;line-height:1.6}.code-line{transition:var(--transition-fast);border-radius:4px;padding:1px 4px;display:flex}.code-line-num{color:#334155;text-align:right;-webkit-user-select:none;user-select:none;width:24px;margin-right:16px;font-size:.8rem}.code-line-text{color:#94a3b8;white-space:pre}.code-line-highlighted{border-left:2px solid var(--color-indigo);background:#6366f11f}.code-line-highlighted .code-line-text{color:#e2e8f0}.keyword{color:#f43f5e;font-weight:600}.func-name{color:#3b82f6}.param{color:#fb923c}.number{color:#22d3ee}.comment{color:#475569;font-style:italic}.string{color:#10b981}.ide-visual-panel{background:#03030766;flex-direction:column;flex:.9;gap:16px;padding:16px;display:flex;overflow-y:auto}.visual-section-title{text-transform:uppercase;color:#475569;letter-spacing:.05em;margin-bottom:8px;font-size:.72rem;font-weight:700}.variables-box{border:1px solid var(--border-glass);background:#ffffff03;border-radius:12px;padding:12px}.var-row{border-bottom:1px dashed #ffffff08;justify-content:space-between;padding:6px 0;font-size:.78rem;display:flex}.var-row:last-child{border:none}.var-name{color:#64748b;font-family:monospace}.var-val{color:#cbd5e1;font-family:monospace;font-weight:600}.stack-box{flex-direction:column;flex:1;justify-content:flex-end;gap:6px;min-height:120px;display:flex}.stack-frame{color:var(--color-indigo);background:linear-gradient(90deg,#6366f114,#a855f708);border:1px solid #6366f126;border-radius:8px;justify-content:space-between;align-items:center;padding:8px 12px;font-family:monospace;font-size:.78rem;animation:.3s cubic-bezier(.16,1,.3,1) framePush;display:flex;box-shadow:0 4px 10px #00000026}.stack-frame.active-frame{border-color:var(--color-cyan);color:#fff;background:linear-gradient(90deg,#22d3ee1f,#6366f10a);box-shadow:0 0 15px #22d3ee26}@keyframes framePush{0%{opacity:0;transform:translateY(10px)scale(.95)}to{opacity:1;transform:translateY(0)scale(1)}}.stack-empty{color:#334155;text-align:center;border:1px dashed #ffffff05;border-radius:8px;padding:20px 0;font-size:.78rem}.ide-console{border-top:1px solid var(--border-glass);background:#020204;justify-content:space-between;align-items:center;padding:12px 20px;font-family:monospace;font-size:.78rem;display:flex}.console-output{color:#10b981;align-items:center;gap:8px;display:flex}.console-controls{gap:8px;display:flex}.console-btn{color:#cbd5e1;cursor:pointer;transition:var(--transition-fast);background:#ffffff08;border:1px solid #ffffff0f;border-radius:8px;align-items:center;gap:6px;padding:6px 12px;font-size:.75rem;font-weight:500;display:flex}.console-btn:hover{color:#fff;background:#ffffff12;border-color:#ffffff26}.tutor-speech-bubble{background:linear-gradient(135deg,#0d0d18e6,#06060cf2);border:1px solid #6366f133;border-radius:16px;gap:14px;padding:16px 20px;display:flex;position:relative;box-shadow:0 15px 40px #0009}.tutor-avatar-circle{background:linear-gradient(135deg, var(--color-indigo), var(--color-purple));color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:.95rem;display:flex;box-shadow:0 0 10px #6366f166}.tutor-bubble-content{flex-direction:column;gap:4px;display:flex}.tutor-bubble-title{color:var(--color-cyan);text-transform:uppercase;letter-spacing:.05em;font-size:.72rem;font-weight:700}.tutor-bubble-text{color:#cbd5e1;font-size:.85rem;line-height:1.5}.marquee-section{z-index:2;background:#03030780;border-top:1px solid #ffffff05;border-bottom:1px solid #ffffff05;padding:40px 0;position:relative;overflow:hidden}.marquee-title{text-align:center;text-transform:uppercase;color:#475569;letter-spacing:.15em;margin-bottom:24px;font-size:.75rem;font-weight:700}.marquee-container{width:100%;display:flex;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,#0000,#000 15% 85%,#0000);mask-image:linear-gradient(90deg,#0000,#000 15% 85%,#0000)}.marquee-track{white-space:nowrap;gap:60px;animation:35s linear infinite scrollMarquee;display:flex}@keyframes scrollMarquee{0%{transform:translate(0)}to{transform:translate(-50%)}}.logo-item{color:#475569;cursor:pointer;transition:var(--transition-fast);align-items:center;gap:8px;font-size:1.1rem;font-weight:700;display:flex}.logo-item svg{fill:currentColor;transition:var(--transition-fast)}.logo-item:hover{color:#cbd5e1}.logo-item:hover svg{filter:drop-shadow(0 0 8px var(--color-indigo));color:var(--color-indigo)}.activity-feed-section{z-index:2;flex-direction:column;align-items:center;max-width:1200px;margin:0 auto;padding:60px 32px 20px;display:flex;position:relative}.activity-feed-card{background:var(--bg-glass);border:1px solid var(--border-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);width:100%;max-width:800px;transition:var(--transition-smooth);border-radius:20px;justify-content:space-between;align-items:center;gap:20px;padding:16px 24px;display:flex;position:relative;overflow:hidden;box-shadow:0 10px 30px #00000080}.activity-feed-card:before{content:"";background:linear-gradient(90deg,#0000,#6366f10d,#0000);animation:4s infinite shimmerGlow;position:absolute;inset:0;transform:translate(-100%)}@keyframes shimmerGlow{0%{transform:translate(-100%)}to{transform:translate(100%)}}.activity-left{align-items:center;gap:16px;display:flex}.activity-pulse-circle{width:42px;height:42px;color:var(--color-indigo);background:#6366f11a;border:1px solid #6366f140;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;display:flex}.activity-details{flex-direction:column;display:flex}.activity-user{color:#f1f5f9;font-size:.88rem;font-weight:600}.activity-action{color:#64748b;margin-top:2px;font-size:.8rem}.activity-highlight{color:var(--color-cyan);font-weight:500}.activity-timestamp{color:#334155;font-size:.72rem;font-weight:600}.section-header{text-align:center;flex-direction:column;align-items:center;gap:14px;margin-bottom:56px;display:flex}.section-badge{text-transform:uppercase;letter-spacing:.1em;color:#818cf8;background:#6366f114;border:1px solid #6366f133;border-radius:100px;align-items:center;gap:8px;padding:5px 16px;font-size:.72rem;font-weight:700;display:inline-flex}.section-title{letter-spacing:-.03em;color:#fff;margin:0;font-size:clamp(1.9rem,4vw,2.8rem);font-weight:800;line-height:1.12}.section-subtitle{color:#64748b;max-width:560px;margin:0;font-size:1rem;line-height:1.6}.features-section{z-index:2;max-width:1200px;margin:0 auto;padding:100px 32px;position:relative}.bento-grid{grid-template-columns:repeat(6,1fr);grid-auto-rows:minmax(180px,auto);gap:20px;display:grid}.bento-card{background:var(--bg-card);border:1px solid var(--border-glass);-webkit-backdrop-filter:blur(14px);border-radius:24px;flex-direction:column;justify-content:space-between;padding:32px;transition:border-color .3s,transform .3s;display:flex;position:relative;overflow:hidden}.bento-card:hover{border-color:#6366f14d;transform:translateY(-2px)}.card-spotlight{background:radial-gradient(300px circle at var(--mouse-x,0) var(--mouse-y,0), #6366f126, transparent 80%);z-index:1;pointer-events:none;opacity:0;border-radius:inherit;transition:opacity .5s;position:absolute;inset:-1px}.bento-card:hover .card-spotlight{opacity:1}.bento-content{z-index:2;flex-direction:column;justify-content:space-between;height:100%;display:flex;position:relative}.bento-large{grid-area:span 2/span 4}.bento-medium{grid-area:span 2/span 2}.bento-normal{grid-area:span 1/span 3}.bento-wide{grid-column:span 6;grid-row:span 1.5}.bento-card-top{flex-direction:column;display:flex}.bento-icon-wrap{width:48px;height:48px;transition:var(--transition-smooth);border-radius:14px;justify-content:center;align-items:center;margin-bottom:24px;display:flex}.bento-icon-wrap.indigo{color:var(--color-indigo);background:#6366f11a;border:1px solid #6366f133}.bento-icon-wrap.purple{color:var(--color-purple);background:#a855f71a;border:1px solid #a855f733}.bento-icon-wrap.cyan{color:var(--color-cyan);background:#22d3ee1a;border:1px solid #22d3ee33}.bento-icon-wrap.blue{color:var(--color-blue);background:#3b82f61a;border:1px solid #3b82f633}.bento-icon-wrap.green{color:var(--color-green);background:#10b9811a;border:1px solid #10b98133}.bento-card:hover .bento-icon-wrap{transform:scale(1.05)rotate(-2deg);box-shadow:0 0 20px #6366f133}.bento-title{color:#fff;margin-bottom:12px;font-size:1.25rem;font-weight:700}.bento-desc{color:#94a3b8;font-size:.9rem;line-height:1.6}.bento-preview-container{border:1px solid var(--border-glass);background:#0000004d;border-radius:16px;flex:1;min-height:160px;margin-top:24px;display:flex;overflow:hidden}.music-mini-player{flex-direction:column;justify-content:center;gap:12px;width:100%;padding:16px;display:flex}.music-track-info{align-items:center;gap:12px;display:flex}.music-track-disc{border:1px solid var(--border-glow);width:38px;height:38px;color:var(--color-indigo);background:#1e1b4b;border-radius:50%;justify-content:center;align-items:center;animation:8s linear infinite rotateDisc;display:flex}@keyframes rotateDisc{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.music-bars{align-items:flex-end;gap:2px;height:12px;display:flex}.music-bar{background:var(--color-indigo);width:2px;animation:.8s ease-in-out infinite alternate jumpBar}.music-bar-1{height:60%;animation-delay:.1s}.music-bar-2{height:90%;animation-delay:.3s}.music-bar-3{height:40%;animation-delay:.5s}.music-bar-4{height:75%;animation-delay:.2s}@keyframes jumpBar{0%{transform:scaleY(.4)}to{transform:scaleY(1.2)}}.roadmap-visualization-section{z-index:2;max-width:1200px;margin:0 auto;padding:100px 32px;position:relative}.node-graph-box{background:var(--bg-card);border:1px solid var(--border-glass);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-radius:28px;grid-template-columns:1.3fr .7fr;gap:40px;min-height:480px;padding:40px;display:grid;box-shadow:0 20px 50px #0009}.node-graph-canvas-wrap{background:#0003;border:1px dashed #ffffff08;border-radius:20px;width:100%;height:100%;min-height:320px;position:relative;overflow:hidden}.nodes-svg-layer{width:100%;height:100%;position:absolute;inset:0}.neon-svg-line{stroke-dasharray:8 8;animation:30s linear infinite lineShimmer}@keyframes lineShimmer{to{stroke-dashoffset:-1000px}}.graph-node{cursor:pointer;z-index:10;transition:var(--transition-smooth);flex-direction:column;align-items:center;display:flex;position:absolute;transform:translate(-50%,-50%)}.node-dot-wrap{color:#475569;width:48px;height:48px;transition:var(--transition-smooth);background:#090912;border:2px solid #ffffff14;border-radius:50%;justify-content:center;align-items:center;display:flex;box-shadow:0 4px 15px #0006}.graph-node:hover .node-dot-wrap,.graph-node.active .node-dot-wrap{border-color:var(--color-indigo);color:var(--color-indigo);transform:scale(1.12);box-shadow:0 0 25px #6366f173}.node-dot-wrap.completed{border-color:var(--color-green);color:var(--color-green);box-shadow:0 0 15px #10b98133}.node-label{color:#64748b;text-align:center;transition:var(--transition-fast);white-space:nowrap;margin-top:10px;font-size:.78rem;font-weight:600}.graph-node:hover .node-label,.graph-node.active .node-label{color:#fff}.node-detail-panel{flex-direction:column;justify-content:center;display:flex}.node-detail-card{border:1px solid var(--border-glass);background:#ffffff04;border-radius:20px;padding:28px;box-shadow:0 10px 30px #0000004d}.node-detail-title{color:#fff;margin-top:12px;font-size:1.15rem;font-weight:700}.node-detail-badge{text-transform:uppercase;border-radius:100px;padding:4px 10px;font-size:.68rem;font-weight:700;display:inline-block}.node-detail-badge.active-badge{color:#818cf8;background:#6366f11a;border:1px solid #6366f133}.node-detail-badge.completed-badge{color:#34d399;background:#10b9811a;border:1px solid #10b98133}.node-detail-desc{color:#94a3b8;margin-top:14px;font-size:.88rem;line-height:1.6}.node-class-tutor{background:#6366f10a;border:1px solid #6366f11a;border-radius:14px;align-items:flex-start;gap:12px;margin-top:24px;padding:14px;display:flex}.node-class-tutor-avatar{background:var(--color-indigo);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;font-size:.78rem;font-weight:600;display:flex}.node-class-tutor-text{color:#cbd5e1;font-size:.8rem;line-height:1.45}.how-it-works-section{z-index:2;max-width:1000px;margin:0 auto;padding:100px 32px;position:relative}.timeline-box{flex-direction:column;gap:60px;margin-top:60px;display:flex;position:relative}.timeline-track-line{background:#ffffff05;border-radius:100px;width:4px;position:absolute;top:10px;bottom:10px;left:50%;overflow:hidden;transform:translate(-50%)}.timeline-glow-line{background:linear-gradient(to bottom, var(--color-indigo), var(--color-cyan));border-radius:inherit;width:100%;transition:height .1s;position:absolute;top:0;left:0;box-shadow:0 0 15px #6366f1cc}.timeline-step-row{z-index:10;justify-content:space-between;align-items:center;width:100%;display:flex;position:relative}.timeline-step-row:nth-child(2n){flex-direction:row-reverse}.timeline-card-wrap{width:43%}.timeline-step-card{background:var(--bg-card);border:1px solid var(--border-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);transition:var(--transition-smooth);border-radius:20px;padding:30px;box-shadow:0 10px 30px #0006}.timeline-step-row.active-step .timeline-step-card{border-color:#6366f159;transform:translateY(-2px);box-shadow:0 15px 40px #6366f114}.timeline-step-header{align-items:center;gap:12px;margin-bottom:12px;display:flex}.timeline-step-num{color:var(--color-cyan);background:#22d3ee14;border:1px solid #22d3ee33;border-radius:8px;justify-content:center;align-items:center;width:32px;height:32px;font-size:1rem;font-weight:800;display:flex}.timeline-step-title{color:#fff;font-size:1.15rem;font-weight:700}.timeline-step-desc{color:#94a3b8;font-size:.88rem;line-height:1.6}.timeline-center-node{z-index:20;width:24px;height:24px;transition:var(--transition-smooth);background:#090912;border:3px solid #ffffff0f;border-radius:50%;justify-content:center;align-items:center;display:flex;position:absolute;left:50%;transform:translate(-50%,-50%)}.timeline-step-row.active-step .timeline-center-node{border-color:var(--color-cyan);box-shadow:0 0 15px var(--color-cyan);background:var(--color-cyan)}.timeline-spacer{width:43%}.dashboard-preview-section{z-index:2;max-width:1200px;margin:0 auto;padding:100px 32px;position:relative}.dashboard-mockup{border:1px solid var(--border-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#05050ae6;border-radius:28px;flex-direction:column;height:580px;display:flex;overflow:hidden;box-shadow:0 35px 80px #000000e6}.dash-header{border-bottom:1px solid var(--border-glass);background:#ffffff04;justify-content:space-between;align-items:center;padding:16px 28px;display:flex}.dash-nav{gap:20px;display:flex}.dash-nav-item{color:#475569;cursor:pointer;padding:4px 0;font-size:.85rem;font-weight:600;position:relative}.dash-nav-item.active{color:#fff}.dash-nav-item.active:after{content:"";background:var(--color-indigo);height:2px;box-shadow:0 0 10px var(--color-indigo);position:absolute;bottom:-18px;left:0;right:0}.dash-user{color:#cbd5e1;align-items:center;gap:8px;font-size:.85rem;display:flex}.dash-user-avatar{width:28px;height:28px;color:var(--color-cyan);background:#1e1b4b;border-radius:50%;justify-content:center;align-items:center;font-size:.78rem;font-weight:700;display:flex}.dash-body{flex:1;display:flex;overflow:hidden}.dash-sidebar{border-right:1px solid var(--border-glass);background:#00000026;flex-direction:column;gap:24px;width:220px;padding:24px;display:flex}.dash-menu-group{flex-direction:column;gap:8px;display:flex}.dash-menu-title{text-transform:uppercase;color:#334155;letter-spacing:.05em;margin-bottom:4px;font-size:.65rem;font-weight:800}.dash-menu-item{color:#64748b;cursor:pointer;transition:var(--transition-fast);border-radius:8px;align-items:center;gap:10px;padding:8px 12px;font-size:.82rem;font-weight:500;display:flex}.dash-menu-item:hover,.dash-menu-item.active{color:#fff;background:#ffffff05}.dash-content{flex:1;grid-template-columns:2fr 1fr;gap:24px;padding:28px;display:grid;overflow-y:auto}.dash-main-pane{flex-direction:column;gap:24px;display:flex}.dash-stats-grid{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.dash-stat-card{border:1px solid var(--border-glass);background:#ffffff03;border-radius:16px;flex-direction:column;gap:4px;padding:16px;display:flex}.dash-stat-label{color:#64748b;font-size:.72rem;font-weight:500}.dash-stat-value{color:#fff;align-items:baseline;gap:6px;font-size:1.25rem;font-weight:700;display:flex}.dash-stat-trend{color:#10b981;font-size:.68rem;font-weight:600}.dash-chart-card{border:1px solid var(--border-glass);background:#ffffff04;border-radius:20px;flex-direction:column;height:220px;padding:20px;display:flex}.dash-chart-header{justify-content:space-between;margin-bottom:16px;display:flex}.dash-chart-title{color:#fff;font-size:.88rem;font-weight:700}.dash-chart-legend{color:#64748b;gap:12px;font-size:.72rem;display:flex}.legend-dot{border-radius:50%;width:8px;height:8px;margin-right:4px;display:inline-block}.legend-dot-indigo{background:var(--color-indigo)}.dash-chart-graphic{flex:1;position:relative}.dash-heatmap-card{border:1px solid var(--border-glass);background:#ffffff03;border-radius:20px;padding:20px}.dash-heatmap-title{color:#fff;margin-bottom:12px;font-size:.85rem;font-weight:700}.dash-heatmap-grid{grid-template-columns:repeat(24,1fr);gap:4px;display:grid}.heatmap-cell{aspect-ratio:1;transition:var(--transition-fast);background:#ffffff05;border-radius:2px}.heatmap-cell.level-1{background:#10b98126}.heatmap-cell.level-2{background:#10b98159}.heatmap-cell.level-3{background:#10b98199}.heatmap-cell.level-4{background:#10b981f2;box-shadow:0 0 8px #10b98166}.heatmap-cell:hover{z-index:10;transform:scale(1.2)}.dash-side-pane{flex-direction:column;gap:20px;display:flex}.dash-progress-card{border:1px solid var(--border-glass);text-align:center;background:#ffffff04;border-radius:20px;flex-direction:column;align-items:center;padding:20px;display:flex}.dash-progress-circle-wrap{width:110px;height:110px;margin:16px 0;position:relative}.dash-progress-text{flex-direction:column;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.dash-progress-num{color:#fff;font-size:1.4rem;font-weight:800}.dash-progress-label{color:#64748b;text-transform:uppercase;font-size:.65rem}.dash-activity-list-card{border:1px solid var(--border-glass);background:#ffffff03;border-radius:20px;flex:1;padding:20px}.dash-activity-list-title{color:#fff;margin-bottom:12px;font-size:.82rem;font-weight:700}.dash-activity-items{flex-direction:column;gap:12px;display:flex}.dash-activity-item{align-items:center;gap:10px;font-size:.75rem;display:flex}.dash-activity-dot{background:var(--color-cyan);border-radius:50%;width:6px;height:6px}.dash-activity-text{color:#94a3b8;flex:1}.dash-activity-time{color:#475569}.testimonials-section{z-index:2;padding:100px 0;position:relative;overflow:hidden}.testimonials-marquee-wrap{flex-direction:column;gap:20px;width:100%;display:flex}.testimonials-track{gap:20px;width:max-content;animation:40s linear infinite scrollTestimonials;display:flex}.testimonials-track-reverse{animation:40s linear infinite scrollTestimonialsReverse}.testimonials-track:hover{animation-play-state:paused}@keyframes scrollTestimonials{0%{transform:translate(0)}to{transform:translate(-33.33%)}}@keyframes scrollTestimonialsReverse{0%{transform:translate(-33.33%)}to{transform:translate(0)}}.testimonial-glass-card{background:var(--bg-glass);border:1px solid var(--border-glass);-webkit-backdrop-filter:blur(14px);width:360px;transition:var(--transition-smooth);border-radius:24px;flex-direction:column;justify-content:space-between;padding:28px;display:flex;box-shadow:0 10px 30px #0006}.testimonial-glass-card:hover{border-color:#6366f140;transform:translateY(-4px);box-shadow:0 15px 40px #6366f114}.testimonial-stars-row{color:#f59e0b;gap:3px;margin-bottom:14px;display:flex}.testimonial-body-text{color:#cbd5e1;margin-bottom:20px;font-size:.9rem;line-height:1.6}.testimonial-user-row{align-items:center;gap:12px;display:flex}.user-avatar-circle{background:linear-gradient(135deg, var(--color-indigo), var(--color-purple));color:#fff;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;font-size:.85rem;font-weight:700;display:flex}.user-meta{flex-direction:column;display:flex}.user-name-wrap{color:#fff;align-items:center;gap:6px;font-size:.85rem;font-weight:700;display:flex}.verified-icon{color:var(--color-cyan)}.user-description{color:#64748b;font-size:.72rem;font-weight:500}.premium-cta-section{z-index:2;max-width:1200px;margin:0 auto;padding:120px 32px;position:relative}.cta-glass-box{border:1px solid var(--border-glass);text-align:center;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:linear-gradient(135deg,#0f0f1bd9,#08080ef2);border-radius:36px;padding:80px 40px;position:relative;overflow:hidden;box-shadow:0 30px 80px #000000d9}.cta-glowing-backdrop{filter:blur(100px);pointer-events:none;z-index:0;background:radial-gradient(circle,#6366f126,#0000 70%);width:500px;height:500px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.cta-content-inner{z-index:1;flex-direction:column;align-items:center;max-width:650px;margin:0 auto;display:flex;position:relative}.cta-headline{letter-spacing:-.03em;color:#fff;margin-bottom:16px;font-size:clamp(2rem,5vw,3.2rem);font-weight:800;line-height:1.15}.cta-description{color:#94a3b8;margin-bottom:36px;font-size:1.05rem;line-height:1.6}.cta-btn-premium{background:linear-gradient(135deg, var(--color-indigo), var(--color-purple));color:#fff;cursor:pointer;transition:var(--transition-smooth);border:1px solid #ffffff14;border-radius:16px;align-items:center;gap:10px;padding:16px 36px;font-size:1.05rem;font-weight:700;display:flex;box-shadow:0 0 35px #6366f173}.cta-btn-premium:hover{transform:translateY(-2px)scale(1.02);box-shadow:0 0 50px #6366f199}.cta-trust-proof{border-top:1px solid #ffffff0d;justify-content:center;gap:24px;width:100%;margin-top:40px;padding-top:28px;display:flex}.cta-trust-metric{flex-direction:column;align-items:center;display:flex}.cta-trust-value{color:#fff;font-size:1.5rem;font-weight:800}.cta-trust-label{color:#64748b;text-transform:uppercase;letter-spacing:.05em;margin-top:4px;font-size:.72rem;font-weight:600}.landing-footer{z-index:2;border-top:1px solid #ffffff05;max-width:1200px;margin:0 auto;padding:60px 32px 30px;position:relative}.footer-top{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:40px;margin-bottom:48px;display:flex}.footer-brand-side{flex-direction:column;gap:16px;max-width:320px;display:flex}.footer-logo{color:#fff;align-items:center;gap:10px;font-size:1.25rem;font-weight:800;text-decoration:none;display:flex}.footer-logo-img{object-fit:cover;border:1px solid #ffffff14;border-radius:8px;width:32px;height:32px}.footer-tagline{color:#64748b;font-size:.85rem;line-height:1.5}.footer-links-side{flex-wrap:wrap;gap:80px;display:flex}.footer-links-col{flex-direction:column;gap:14px;display:flex}.footer-col-title{text-transform:uppercase;color:#334155;letter-spacing:.1em;font-size:.75rem;font-weight:800}.footer-col-link{color:#64748b;transition:var(--transition-fast);font-size:.85rem;text-decoration:none}.footer-col-link:hover{color:#fff}.footer-bottom{color:#475569;border-top:1px solid #ffffff05;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding-top:24px;font-size:.78rem;display:flex}.footer-legal-links{gap:20px;display:flex}@media (width<=1024px){.hero-container{text-align:center;grid-template-columns:1fr;gap:60px;padding-top:120px;padding-bottom:60px}.hero-left{text-align:center;align-items:center}.hero-description{max-width:600px}.floating-widgets-container{justify-content:center}.bento-grid{grid-template-columns:repeat(4,1fr)}.bento-large{grid-column:span 4}.bento-medium,.bento-normal{grid-column:span 2}.bento-wide{grid-column:span 4}.node-graph-box{grid-template-columns:1fr;gap:40px}}@media (width<=768px){.nav-links{display:none}.timeline-track-line{left:16px;transform:none}.timeline-center-node{left:16px;transform:translateY(-50%)translate(-50%)}.timeline-step-row{flex-direction:row!important}.timeline-card-wrap{width:calc(100% - 40px);margin-left:40px}.timeline-spacer{display:none}.dashboard-mockup{height:auto}.dash-content{grid-template-columns:1fr}.dash-sidebar{display:none}.bento-grid{grid-template-columns:1fr;grid-auto-rows:auto}.bento-large,.bento-medium,.bento-normal,.bento-wide{grid-area:span 1/span 1}.hero-cta-buttons{flex-direction:column;width:100%}.btn-glowing,.btn-glass{justify-content:center;width:100%}.footer-top{flex-direction:column;gap:40px}.footer-links-side{justify-content:space-between;gap:40px;width:100%}}@media (width<=480px){.nav-actions{display:none}.node-graph-box{padding:20px}.node-dot-wrap{width:38px;height:38px}.dash-stats-grid{grid-template-columns:1fr}.cta-glass-box{padding:40px 20px}.cta-trust-proof{flex-direction:column;gap:20px}}.token-bank-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:1000;background:#000000b3;justify-content:center;align-items:center;width:100vw;height:100vh;padding:20px;animation:.3s ease-out fadeIn;display:flex;position:fixed;top:0;left:0}.token-bank-modal{background:var(--bg-color);border:1px solid var(--border-color);border-radius:16px;flex-direction:column;width:100%;max-width:600px;max-height:90vh;animation:.3s ease-out slideUp;display:flex;overflow-y:auto;box-shadow:0 20px 40px #0000004d}.token-bank-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.header-title{align-items:center;gap:12px;display:flex}.header-title h2{color:var(--text-color);margin:0;font-size:1.5rem}.header-title i{font-size:1.5rem}.tb-close-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;font-size:2rem;line-height:1;transition:color .2s}.tb-close-btn:hover{color:var(--text-color)}.token-stats{border-bottom:1px solid var(--border-color);grid-template-columns:1fr 1fr;gap:20px;padding:24px;display:grid}.stat-card{text-align:center;background:#f59e0b0d;border:1px solid #f59e0b33;border-radius:12px;padding:20px}.stat-card.ad-stat{background:#3b82f60d;border-color:#3b82f633}.stat-card h3{color:var(--text-muted);margin:0 0 10px;font-size:1rem}.stat-value{color:#f59e0b;justify-content:center;align-items:baseline;gap:5px;font-size:2.5rem;font-weight:700;display:flex}.stat-max{color:var(--text-muted);font-size:1rem;font-weight:400}.stat-desc{color:var(--text-muted);margin:10px 0 0;font-size:.8rem}.ads-section{padding:24px}.ads-section h3{color:var(--text-color);margin:0 0 5px}.section-desc{color:var(--text-muted);margin:0 0 20px;font-size:.9rem}.ads-grid{grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:15px;display:grid}.ad-button{background:var(--bg-hover);border:1px solid var(--border-color);cursor:pointer;color:var(--text-color);border-radius:10px;flex-direction:column;align-items:center;gap:10px;padding:15px;transition:all .2s;display:flex}.ad-button:hover:not(:disabled){background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 5px 15px rgba(var(--accent-rgb), .3);transform:translateY(-2px)}.ad-button i{color:#3b82f6;font-size:1.5rem;transition:color .2s}.ad-button:hover:not(:disabled) i{color:#fff}.ad-button span{font-size:.9rem;font-weight:500}.ad-button.locked{opacity:.5;cursor:not-allowed;filter:grayscale()}.ad-button.watching{cursor:wait;background:#3b82f61a;border-color:#3b82f666;animation:1.5s ease-in-out infinite watchPulse}@keyframes watchPulse{0%,to{box-shadow:0 0 #3b82f633}50%{box-shadow:0 0 0 8px #3b82f600}}.ad-countdown{flex-direction:column;align-items:center;gap:8px;display:flex}.ad-countdown span{color:#3b82f6;font-size:.8rem}.countdown-circle{background:#3b82f626;border:2px solid #3b82f6;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;animation:1s linear infinite countSpin;display:flex}.countdown-circle span{color:#3b82f6;font-size:1.1rem;font-weight:700}@keyframes countSpin{0%{border-color:#3b82f6 #0000 #0000}25%{border-color:#3b82f6 #3b82f6 #0000 #0000}50%{border-color:#3b82f6 #3b82f6 #3b82f6 #0000}75%{border-color:#3b82f6}to{border-color:#3b82f6 #0000 #0000}}.ad-done{color:#22c55e;flex-direction:column;align-items:center;gap:6px;display:flex}.ad-done i{color:#22c55e;font-size:1.4rem}.ad-done span{color:#22c55e;font-size:.85rem;font-weight:600}.max-tokens-warning{color:#ef4444;text-align:center;background:#ef44441a;border:1px solid #ef44444d;border-radius:8px;margin-top:20px;padding:12px;font-size:.9rem}.ad-player-overlay{z-index:2000;background:#000000e6;justify-content:center;align-items:center;animation:.3s fadeIn;display:flex;position:fixed;inset:0}.ad-player-modal{background:#0a0a0a;border:1px solid #ffffff1a;border-radius:16px;width:100%;max-width:640px;animation:.4s cubic-bezier(.16,1,.3,1) slideUp;overflow:hidden;box-shadow:0 30px 80px #000c}.ad-player-header{background:#ffffff08;border-bottom:1px solid #ffffff0f;justify-content:space-between;align-items:center;padding:14px 20px;display:flex}.ad-label{color:#f59e0b;align-items:center;gap:8px;font-size:.85rem;font-weight:600;display:flex}.ad-label i{font-size:1rem}.ad-timer{flex:1;align-items:center;gap:12px;margin:0 20px;display:flex}.ad-timer-bar{background:#ffffff1a;border-radius:2px;flex:1;height:4px;overflow:hidden}.ad-timer-fill{background:linear-gradient(90deg,#3b82f6,#60a5fa);border-radius:2px;height:100%;transition:width 1s linear}.ad-timer-text{color:#888;white-space:nowrap;font-size:.78rem}.ad-close-btn{color:#fff;cursor:pointer;background:#ffffff14;border:1px solid #ffffff1f;border-radius:8px;padding:6px 12px;font-size:.9rem;transition:all .2s}.ad-close-btn:hover{background:#ffffff26}.ad-player-body{background:#000;justify-content:center;align-items:center;height:400px;display:flex;position:relative}.ad-iframe{background:#000;border:none;width:100%;height:100%}.ad-fallback,.ad-complete{color:#fff;text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:40px;display:flex}.ad-fallback i{color:#f59e0b;font-size:2.5rem}.ad-fallback p{color:#999;margin:0;font-size:.95rem}.ad-complete-icon{color:#22c55e;background:#22c55e26;border:2px solid #22c55e;border-radius:50%;justify-content:center;align-items:center;width:64px;height:64px;font-size:2rem;animation:.4s cubic-bezier(.16,1,.3,1) scaleIn;display:flex}.ad-complete h3{color:#22c55e;margin:0;font-size:1.3rem}.ad-complete p{color:#666;margin:0;font-size:.9rem}.ad-fallback-counter{color:#fff;flex-direction:column;align-items:center;gap:16px;display:flex}.ad-fallback-spinner{border:3px solid #3b82f633;border-top-color:#3b82f6;border-radius:50%;width:48px;height:48px;animation:1s linear infinite spin}.ad-fallback-counter p{color:#888;margin:0;font-size:.9rem}.ad-fallback-time{font-weight:600;color:#3b82f6!important;font-size:1.2rem!important}@keyframes scaleIn{0%{opacity:0;filter:blur(8px);transform:scale(.92)}to{opacity:1;filter:blur();transform:scale(1)}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)scale(.95)}to{opacity:1;transform:translateY(0)scale(1)}}.premium-plans-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:1000;background:#000000b3;justify-content:center;align-items:center;width:100vw;height:100vh;padding:20px;animation:.3s ease-out fadeIn;display:flex;position:fixed;top:0;left:0}.premium-plans-modal{background:var(--bg-color);border:1px solid var(--border-color);border-radius:16px;flex-direction:column;width:100%;max-width:900px;max-height:90vh;animation:.3s ease-out slideUp;display:flex;overflow-y:auto;box-shadow:0 20px 40px #0000004d}.premium-plans-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.premium-plans-header .header-title{align-items:center;gap:12px;display:flex}.premium-plans-header h2{color:var(--text-color);margin:0;font-size:1.5rem}.premium-plans-header i{font-size:1.5rem}.pp-close-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;font-size:2rem;line-height:1;transition:color .2s}.pp-close-btn:hover{color:var(--text-color)}.plans-content{padding:30px}.plans-subtitle{text-align:center;color:var(--text-muted);margin:0 0 30px;font-size:1.1rem}.plans-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;display:grid}.plan-card{background:var(--bg-color);border:1px solid var(--border-color);text-align:center;border-radius:16px;flex-direction:column;align-items:center;padding:30px 20px;transition:transform .3s,box-shadow .3s;display:flex;position:relative}.plan-card:hover{transform:translateY(-5px);box-shadow:0 15px 30px #0000001a}.plan-card.pro{border-color:var(--accent);box-shadow:0 0 20px rgba(var(--accent-rgb), .1)}.plan-card.master{background:linear-gradient(135deg,#ec48990d,#4f46e50d);border-color:#ec4899}.plan-tag{background:var(--border-color);color:var(--text-muted);letter-spacing:1px;border-radius:20px;margin-bottom:20px;padding:4px 12px;font-size:.75rem;font-weight:700}.plan-tag.popular{background:var(--accent);color:#fff;border:2px solid var(--bg-color);position:absolute;top:-12px}.plan-tag.master-tag{color:#fff;border:2px solid var(--bg-color);background:#ec4899;position:absolute;top:-12px}.plan-price{color:var(--text-color);margin:0;font-size:2.5rem;font-weight:800}.plan-period{color:var(--text-muted);margin:5px 0 20px}.plan-features{text-align:left;width:100%;margin:0 0 30px;padding:0;list-style:none}.plan-features li{color:var(--text-color);border-bottom:1px solid var(--border-color);align-items:center;gap:10px;padding:8px 0;display:flex}.plan-features li:last-child{border-bottom:none}.plan-features i{color:var(--accent)}.plan-card.master .plan-features i{color:#ec4899}.plan-btn{border:1px solid var(--border-color);width:100%;color:var(--text-color);cursor:pointer;background:0 0;border-radius:8px;margin-top:auto;padding:12px;font-weight:700;transition:all .2s}.plan-btn:hover{background:var(--bg-hover)}.pro-btn{background:var(--accent);color:#fff;border:none}.pro-btn:hover{background:var(--accent-light);box-shadow:0 5px 15px rgba(var(--accent-rgb), .3);transform:translateY(-2px)}.master-btn{color:#fff;background:linear-gradient(135deg,#ec4899,#4f46e5);border:none}.master-btn:hover{background:linear-gradient(135deg,#db2777,#4338ca);transform:translateY(-2px);box-shadow:0 5px 15px #ec48994d}.fb-agent-overlay{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);z-index:10000;background:#000000b3;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.fb-agent-container{background:#0f111a;border:1px solid #ffffff1a;border-radius:12px;flex-direction:column;width:100%;max-width:900px;height:80vh;font-family:Fira Code,Consolas,monospace;display:flex;overflow:hidden;box-shadow:0 10px 40px #00000080}.fb-agent-header{background:#1a1d27;border-bottom:1px solid #ffffff0d;justify-content:space-between;align-items:center;height:40px;padding:0 15px;display:flex}.fb-agent-title{color:#a0aabf;align-items:center;gap:8px;font-size:13px;display:flex}.fb-agent-close{color:#a0aabf;cursor:pointer;background:0 0;border:none;font-size:14px}.fb-agent-close:hover{color:#ff5c5c}.fb-agent-body{background:#0f111a;flex:1;padding:20px;overflow-y:auto}.fb-agent-logs{flex-direction:column;gap:8px;display:flex}.log-line{white-space:pre-wrap;word-break:break-word;font-size:14px;line-height:1.5}.log-line.system{color:#8892b0}.log-line.user{color:#56b6c2;font-weight:700}.log-line.error{color:#e06c75}.log-line.agent{color:#c9d1d9}.blink{animation:1s infinite fb-blink}@keyframes fb-blink{0%,to{opacity:1}50%{opacity:.3}}.fb-agent-footer{background:#1a1d27;border-top:1px solid #ffffff0d;align-items:center;padding:15px 20px;display:flex}.fb-agent-prompt{color:#98c379;margin-right:12px;font-weight:700}.fb-agent-footer input{color:#c9d1d9;background:0 0;border:none;outline:none;flex:1;font-family:inherit;font-size:14px}.fb-agent-footer input::placeholder{color:#5c6370}.sp-page{background:var(--bg-deep);height:100vh;min-height:100vh;color:var(--text-primary);flex-direction:column;display:flex;position:relative;overflow:hidden auto}.sp-bg{pointer-events:none;z-index:0;position:fixed;inset:0}.sp-glow{filter:blur(120px);opacity:.15;border-radius:50%;position:absolute}.sp-glow-1{background:var(--accent);width:600px;height:600px;top:-200px;right:-100px}.sp-glow-2{background:var(--accent-warm);width:500px;height:500px;bottom:-200px;left:-100px}.sp-nav{z-index:100;-webkit-backdrop-filter:blur(24px);border-bottom:1px solid var(--border-color);background:#06060eb3;justify-content:space-between;align-items:center;padding:16px 32px;display:flex;position:sticky;top:0}.sp-nav-brand{color:var(--text-primary);letter-spacing:-.3px;align-items:center;gap:10px;font-size:1.2rem;font-weight:700;text-decoration:none;display:flex}.sp-nav-logo{border-radius:8px;width:32px;height:32px}.sp-accent{background:linear-gradient(135deg,#6366f1,#3b82f6);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.sp-nav-links{align-items:center;gap:8px;display:flex}.sp-nav-link{color:var(--text-secondary);border-radius:10px;padding:8px 16px;font-size:.92rem;font-weight:500;text-decoration:none;transition:all .2s}.sp-nav-link:hover{color:var(--text-primary);background:#ffffff0d}.sp-nav-cta{color:var(--accent-light)}.sp-content{z-index:1;flex:1;width:100%;max-width:800px;margin:0 auto;padding:60px 24px 80px;animation:.5s cubic-bezier(.25,1,.5,1) slideUpFade;position:relative}.sp-hero-badge{color:var(--accent-light);letter-spacing:.3px;background:#6366f11a;border:1px solid #6366f133;border-radius:100px;margin-bottom:20px;padding:6px 16px;font-size:.82rem;font-weight:600;display:inline-block}.sp-title{letter-spacing:-1px;color:#fff;margin-bottom:16px;font-size:clamp(2rem,5vw,3.2rem);font-weight:800;line-height:1.15}.sp-subtitle{color:var(--text-secondary);margin-bottom:40px;font-size:1.1rem;line-height:1.5}.sp-section{margin:40px 0}.sp-section h2{letter-spacing:-.3px;color:#fff;margin-bottom:16px;font-size:1.4rem;font-weight:700}.sp-section h3{color:var(--text-primary);margin:20px 0 10px;font-size:1.1rem;font-weight:600}.sp-section p{color:var(--text-secondary);margin-bottom:12px;font-size:1rem;line-height:1.8}.sp-list{margin:12px 0;padding:0;list-style:none}.sp-list li{color:var(--text-secondary);padding:8px 0 8px 24px;font-size:1rem;line-height:1.6;position:relative}.sp-list li:before{content:"•";color:var(--accent);font-weight:700;position:absolute;left:8px}.sp-link{color:var(--accent-light);font-weight:500;text-decoration:none;transition:color .2s}.sp-link:hover{color:var(--accent);text-decoration:underline}.sp-card-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin:32px 0;display:grid}.sp-card{border:1px solid var(--border-color);border-radius:var(--radius-lg);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#0f1019b3;padding:28px;transition:all .3s cubic-bezier(.25,1,.5,1)}.sp-card:hover{border-color:#6366f14d;transform:translateY(-4px);box-shadow:0 16px 48px #0006}.sp-card-icon{color:var(--accent-light);margin-bottom:16px;font-size:2rem}.sp-card h3{color:#fff;margin-bottom:10px;font-size:1.1rem;font-weight:600}.sp-card p{color:var(--text-secondary);font-size:.95rem;line-height:1.6}.sp-footer{z-index:1;text-align:center;border-top:1px solid var(--border-color);padding:40px 24px;position:relative}.sp-footer-links{flex-wrap:wrap;justify-content:center;gap:24px;margin-bottom:16px;display:flex}.sp-footer-links a{color:var(--text-secondary);font-size:.9rem;font-weight:500;text-decoration:none;transition:color .2s}.sp-footer-links a:hover{color:var(--text-primary)}.sp-footer p{color:var(--text-muted);font-size:.82rem}.blog-content{max-width:1100px}.blog-controls{flex-direction:column;gap:16px;margin-bottom:40px;display:flex}.blog-search-wrap{max-width:480px;position:relative}.blog-search-icon{color:var(--text-muted);font-size:.9rem;position:absolute;top:50%;left:16px;transform:translateY(-50%)}.blog-search{border:1px solid var(--border-color);border-radius:var(--radius-md);width:100%;color:var(--text-primary);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#0f1019b3;outline:none;padding:14px 16px 14px 42px;font-family:inherit;font-size:1rem;transition:all .3s}.blog-search:focus{border-color:var(--accent);box-shadow:0 0 0 3px #6366f11a}.blog-categories{flex-wrap:wrap;gap:6px;display:flex}.blog-cat-btn{cursor:pointer;color:var(--text-secondary);background:#ffffff05;border:1px solid #ffffff0f;border-radius:100px;padding:8px 16px;font-family:inherit;font-size:.85rem;font-weight:600;transition:all .2s}.blog-cat-btn.active{border-color:var(--accent);color:var(--accent-light);background:#6366f11a}.blog-cat-btn:hover:not(.active){color:var(--text-primary);background:#ffffff0f}.blog-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px;display:grid}.blog-card{border:1px solid var(--border-color);border-radius:var(--radius-lg);color:inherit;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#0f1019b3;flex-direction:column;gap:12px;padding:24px;text-decoration:none;transition:all .3s cubic-bezier(.25,1,.5,1);animation:.4s cubic-bezier(.25,1,.5,1) both slideUpFade;display:flex}.blog-card:hover{border-color:#6366f14d;transform:translateY(-4px);box-shadow:0 16px 48px #0000004d}.blog-card-top{justify-content:space-between;align-items:center;display:flex}.blog-card-cat{color:var(--accent-light);background:#6366f11a;border:1px solid #6366f133;border-radius:100px;padding:4px 12px;font-size:.75rem;font-weight:600}.blog-card-time{color:var(--text-muted);font-size:.78rem}.blog-card-title{letter-spacing:-.3px;color:#fff;font-size:1.15rem;font-weight:600;line-height:1.35}.blog-card-excerpt{color:var(--text-secondary);flex:1;font-size:.92rem;line-height:1.55}.blog-card-footer{border-top:1px solid var(--border-color);justify-content:space-between;align-items:center;padding-top:12px;display:flex}.blog-card-date{color:var(--text-muted);font-size:.8rem}.blog-card-read{color:var(--accent-light);font-size:.85rem;font-weight:600}.blog-empty{text-align:center;color:var(--text-muted);padding:80px 20px}.blog-empty i{opacity:.4;margin-bottom:16px;font-size:2rem;display:block}.blog-post-content{max-width:760px}.bp-article{margin-bottom:60px}.bp-meta{flex-wrap:wrap;align-items:center;gap:16px;margin-bottom:20px;display:flex}.bp-category{color:var(--accent-light);background:#6366f11a;border:1px solid #6366f133;border-radius:100px;padding:4px 14px;font-size:.82rem;font-weight:600}.bp-date,.bp-read-time{color:var(--text-muted);font-size:.88rem}.bp-title{letter-spacing:-1px;color:#fff;margin-bottom:16px;font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;line-height:1.15}.bp-excerpt{color:var(--text-secondary);margin-bottom:32px;font-size:1.15rem;line-height:1.6}.bp-divider{background:var(--border-color);height:1px;margin-bottom:32px}.bp-body{color:var(--text-primary);font-size:1.05rem;line-height:1.85}.bp-h2{letter-spacing:-.3px;color:#fff;margin:36px 0 16px;font-size:1.4rem;font-weight:700}.bp-h3{color:#fff;margin:24px 0 12px;font-size:1.15rem;font-weight:600}.bp-paragraph{color:var(--text-secondary);margin-bottom:16px;line-height:1.85}.bp-paragraph strong{color:var(--text-primary);font-weight:600}.bp-inline-code{color:var(--accent-light);background:#ffffff0d;border-radius:6px;padding:2px 8px;font-family:JetBrains Mono,monospace;font-size:.92em}.bp-code-block{border:1px solid var(--border-color);border-radius:var(--radius-md);color:#a5d6a7;background:#0a0b14cc;margin:20px 0;padding:20px;font-family:JetBrains Mono,monospace;font-size:.92rem;line-height:1.65;overflow-x:auto}.bp-code-lang{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:12px;font-size:.72rem;font-weight:600}.bp-list{margin:16px 0;padding:0;list-style:none}.bp-list li{color:var(--text-secondary);padding:6px 0 6px 24px;position:relative}.bp-list li:before{content:"–";color:var(--accent);font-weight:700;position:absolute;left:8px}.bp-nav-row{grid-template-columns:1fr 1fr;gap:16px;margin-top:40px;display:grid}.bp-nav-card{border:1px solid var(--border-color);border-radius:var(--radius-md);background:#0f1019b3;padding:20px;text-decoration:none;transition:all .3s}.bp-nav-card:hover{border-color:#6366f14d;transform:translateY(-2px)}.bp-prev{text-align:left}.bp-next{text-align:right}.bp-nav-label{color:var(--text-muted);margin-bottom:6px;font-size:.82rem;display:block}.bp-nav-title{color:var(--text-primary);font-size:.95rem;font-weight:600;line-height:1.35;display:block}@media (width<=768px){.sp-nav{padding:12px 16px}.sp-content{padding:40px 16px 60px}.sp-card-grid,.blog-grid,.bp-nav-row{grid-template-columns:1fr}.sp-nav-links{gap:4px}.sp-nav-link{padding:6px 10px;font-size:.85rem}}.app-container{background:var(--bg-deep);width:100%;height:100%;display:flex;position:fixed;inset:0;overflow:hidden}.sidebar-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:90;opacity:0;pointer-events:none;background:#06060eb3;transition:opacity .25s;display:none;position:fixed;inset:0}@media (width<=768px){.sidebar-overlay.visible{opacity:1;pointer-events:auto;display:block}}.main-area{background:var(--bg-dark);flex-direction:column;flex:1;height:100%;transition:flex .3s cubic-bezier(.25,.8,.25,1);display:flex;position:relative;overflow:hidden}.main-area:before{content:"";pointer-events:none;z-index:0;background:radial-gradient(at 50% 0,#6366f108,#0000 70%);height:200px;position:absolute;top:0;left:0;right:0}.app-container.canvas-open .main-area{flex:0 0 35%;min-width:320px}.app-container.canvas-open .code-canvas{border-left:1px solid var(--border-color);flex:0 0 65%;min-width:400px}@media (width<=768px){.app-container.canvas-open .main-area{flex:1;min-width:100%}}*{box-sizing:border-box;margin:0;padding:0}.app-container,.app-container *{scrollbar-width:none;-ms-overflow-style:none}.app-container ::-webkit-scrollbar{display:none}.sp-page{scrollbar-width:thin;scrollbar-color:#6366f14d transparent}.sp-page::-webkit-scrollbar{width:5px}.sp-page::-webkit-scrollbar-track{background:0 0}.sp-page::-webkit-scrollbar-thumb{background:#6366f14d;border-radius:10px}:root{--bg-deep:#06060e;--bg-dark:#0a0b14;--bg-surface:#0f1019;--bg-elevated:#141520;--sidebar-bg:#0a0b14eb;--border-color:#ffffff0f;--border-hover:#ffffff1f;--border-active:#6366f14d;--accent:#6366f1;--accent-light:#818cf8;--accent-bright:#3b82f6;--accent-warm:#a855f7;--accent-cyan:#22d3ee;--accent-glow:#6366f140;--accent-soft:#6366f114;--glow-blue:#3b82f626;--glow-violet:#8b5cf626;--glow-indigo:#6366f126;--glow-cyan:#22d3ee1f;--glass-bg:#0f1019bf;--glass-bg-strong:#0f1019e6;--glass-border:#ffffff14;--glass-shine:#ffffff08;--text-primary:#f0f0f5;--text-secondary:#8b8fa3;--text-muted:#4b4f63;--card-bg:#0f1019d9;--input-bg:#ffffff0a;--hover-bg:#ffffff0d;--shadow-soft:0 8px 32px #0006;--shadow-glow:0 0 40px #6366f11f;--shadow-glow-lg:0 0 80px #6366f126;--shadow-elevated:0 16px 64px #00000080, 0 0 0 1px #ffffff0d;--success:#22c55e;--danger:#ef4444;--warning:#f59e0b;--info:#3b82f6;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--radius-2xl:24px;--radius-full:9999px;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-2xl:48px;--space-3xl:64px;--transition:.3s cubic-bezier(.25, .8, .25, 1);--transition-fast:.15s cubic-bezier(.25, .8, .25, 1);--transition-slow:.5s cubic-bezier(.16, 1, .3, 1);--gradient-primary:linear-gradient(135deg, #3b82f6, #6366f1, #8b5cf6);--gradient-accent:linear-gradient(135deg, #6366f1, #a855f7);--gradient-warm:linear-gradient(135deg, #f59e0b, #ef4444);--gradient-glass:linear-gradient(135deg, #ffffff14, #ffffff05);--gradient-surface:linear-gradient(180deg, var(--bg-surface), var(--bg-dark))}@media (width>=769px){:root{--bg-dark:#0d0e18;--sidebar-bg:#0a0b12f2}}body.light-theme{--bg-deep:#f0f2f5;--bg-dark:#f8fafc;--bg-surface:#fff;--bg-elevated:#fff;--sidebar-bg:#fffffff2;--border-color:#00000014;--border-hover:#00000026;--text-primary:#111827;--text-secondary:#4b5563;--text-muted:#6b7280;--card-bg:#ffffffe6;--input-bg:#00000008;--hover-bg:#0000000d;--glass-bg:#fffc;--glass-bg-strong:#fffffff2;--glass-border:#0000001a;--glass-shine:#ffffff80;--shadow-soft:0 4px 20px #0000000d;--shadow-glow:0 0 20px #6366f11a;--shadow-elevated:0 10px 40px #00000014, 0 0 0 1px #00000005;--gradient-glass:linear-gradient(135deg, #fffc, #fff6);--gradient-surface:linear-gradient(180deg, var(--bg-surface), #f3f4f6)}@media (width>=769px){body.light-theme{--bg-dark:#f3f4f6;--sidebar-bg:#f9fafbf2}}@media (width<=768px){body.light-theme .sidebar{background:#fffffff7}}body.light-theme .chat-header{background:#fffc}body.light-theme .chat-header:after{background:linear-gradient(to bottom, var(--bg-dark), transparent)}body.light-theme .input-wrapper:before,body.light-theme .welcome-input-wrap:before{background:linear-gradient(to top, var(--bg-dark), transparent)}body.light-theme .input-main-row,body.light-theme .welcome-input-row,body.light-theme .tools-dropdown,body.light-theme .w-tools-dropdown{background:#fff!important;border-color:#0000001a!important}body.light-theme .main-input,body.light-theme .w-input{color:#111827!important}body.light-theme .main-input::placeholder,body.light-theme .w-input::placeholder{color:#6b7280!important}body.light-theme .msg-user-bubble,body.light-theme .canvas-card-container,body.light-theme .login-card-ds,body.light-theme .msg-buffering,body.light-theme .ios-group{background:#fff!important;border-color:#0000001a!important}body.light-theme .msg-content pre,body.light-theme .code-output-panel{background:#f3f4f6}body.light-theme .profile-card-info h3,body.light-theme .ios-input:focus{color:var(--text-primary)}body.light-theme .code-canvas{background:#f8fafc}body.light-theme .cc-header{background:#f1f5f9}body.light-theme .cc-line-numbers{background:#f8fafc}body.light-theme .cc-editor{color:var(--text-primary)}body.light-theme .inline-classroom{background:#fff}body.light-theme .ic-header{background:#f1f5f9}body.light-theme .ic-body{background:#f8fafc}body.light-theme .tc-board-left{background:#fff}body.light-theme .tc-board-right{background:#f8fafc}body.light-theme .mc-overlay{background:#f0f2f5}body.light-theme .mc-topbar{background:#fffc}body.light-theme .mc-brand,body.light-theme .mc-hero-title,body.light-theme .mc-canvas-title,body.light-theme .mc-classes-title,body.light-theme .mc-prompt-input,body.light-theme .mc-subject-card:hover{color:#111827!important}body.light-theme .mc-topbar-btn{color:#4b5563;border-color:#0000001a}body.light-theme .mc-canvas-card{background:#fff;border-color:#0000001a}body.light-theme .mc-classes-right{background:#f8fafcf2}body.light-theme .mc-class-item{background:#fff;border-color:#0000000d}body.light-theme .mc-class-item:hover{background:#f1f5f9;border-color:#0000001a}body.light-theme .mc-prompt-input{background:#fff;border-color:#0000001a}body.light-theme .mc-subject-card{color:#4b5563;background:#fff;border-color:#0000001a}body.light-theme .mc-subject-card:hover{background:#f1f5f9}body,html{background:var(--bg-deep);width:100%;height:100%;color:var(--text-primary);-webkit-tap-highlight-color:transparent;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;overflow:hidden}@media (width>=769px){body,html,#root,.app-container{height:100dvh}}#root{width:100%;height:100%}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-sm{gap:6px}.gap-md{gap:12px}.gap-lg{gap:20px}.w-full{width:100%}.text-center{text-align:center}.truncate{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.glass-card{background:var(--glass-bg);-webkit-backdrop-filter:blur(20px)saturate(150%);border:1px solid var(--glass-border);border-radius:var(--radius-lg);transition:all var(--transition)}.glass-card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-glow)}.glass-button{background:var(--gradient-primary);color:#fff;cursor:pointer;border-radius:var(--radius-md);transition:all var(--transition);border:none;font-family:inherit;font-weight:600;position:relative;overflow:hidden;box-shadow:0 0 20px #6366f133}.glass-button:before{content:"";background:linear-gradient(90deg,#0000,#ffffff26,#0000);width:100%;height:100%;transition:left .6s;position:absolute;top:0;left:-100%}.glass-button:hover:before{left:100%}.glass-button:hover{transform:translateY(-2px);box-shadow:0 8px 40px #6366f159}.glass-input{background:var(--input-bg);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);transition:all var(--transition);outline:none;font-family:inherit}.glass-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #6366f11a,0 0 20px #6366f114}.glass-input::placeholder{color:var(--text-muted)}.gradient-text{background:var(--gradient-primary);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.gradient-text-animated{background:linear-gradient(135deg,#3b82f6,#6366f1,#a855f7,#22d3ee,#3b82f6) 0 0/300%;-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;animation:4s infinite gradientShift}.glow-border{position:relative}.glow-border:after{content:"";border-radius:inherit;background:var(--gradient-primary);opacity:0;z-index:-1;transition:opacity var(--transition);filter:blur(8px);position:absolute;inset:-1px}.glow-border:hover:after{opacity:.3}.hover-lift{transition:transform var(--transition), box-shadow var(--transition)}.hover-lift:hover{transform:translateY(-4px);box-shadow:0 20px 60px #0000004d}@keyframes slideIn{0%{opacity:0;transform:translate(-12px)}to{opacity:1;transform:translate(0)}}@keyframes slideUpFade{0%{opacity:0;filter:blur(4px);transform:translateY(24px)}to{opacity:1;filter:blur();transform:translateY(0)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes gradientShift{0%,to{background-position:0%}50%{background-position:100%}}@keyframes glowPulse{0%,to{box-shadow:0 0 20px #6366f126}50%{box-shadow:0 0 40px #6366f14d}}@keyframes borderGlow{0%,to{border-color:#6366f126}50%{border-color:#6366f166}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}@keyframes floatSlow{0%,to{transform:translateY(0)rotate(0)}25%{transform:translateY(-6px)rotate(1deg)}75%{transform:translateY(4px)rotate(-1deg)}}@keyframes glassShineSweep{0%{left:-100%}to{left:200%}}@keyframes orbFloat{0%,to{border-radius:42% 58% 55% 45%/48% 42% 58% 52%;transform:translateY(0)rotate(0)}33%{border-radius:65% 35% 40% 60%/40% 65% 35% 60%}50%{border-radius:35% 65% 64% 36%/60% 35% 65% 40%;transform:translateY(-10px)rotate(3deg)}66%{border-radius:55% 45% 35% 65%/64% 54% 46% 36%}}@keyframes orbGlow{0%,to{opacity:.8;transform:scale(1)}50%{opacity:.5;transform:scale(1.06)}}@keyframes particleDrift{0%{opacity:0;transform:translateY(0)scale(.6)}20%{opacity:1}50%{opacity:.8;transform:translateY(-14px)scale(1.1)}80%{opacity:1}to{opacity:0;transform:translateY(-28px)scale(.6)}}@keyframes revealUp{0%{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}@keyframes bgDrift{0%,to{transform:translate(0)scale(1)}33%{transform:translate(30px,-20px)scale(1.05)}66%{transform:translate(-20px,15px)scale(.95)}}.gen-shine{white-space:pre-wrap;animation:.75s ease-in-out infinite shineGlow}@keyframes shineGlow{0%,to{color:var(--accent-light);text-shadow:0 0 8px #6366f199}50%{color:var(--accent-cyan);text-shadow:0 0 16px #22d3eeb3}}.gen-normal{color:var(--text-primary);white-space:pre-wrap}.msg-content p{margin:0 0 16px;font-size:1rem;line-height:1.8}.msg-content p:last-child{margin-bottom:0}.msg-content ul,.msg-content ol{margin:0 0 16px 24px}.msg-content li{margin-bottom:7px;font-size:1rem;line-height:1.75}.msg-content h1{color:var(--text-primary);margin:28px 0 12px;padding-bottom:6px;font-size:1.5rem}.msg-content h2{color:var(--text-primary);margin:24px 0 10px;padding-bottom:6px;font-size:1.25rem}.msg-content h3{color:var(--text-primary);margin:20px 0 8px;font-size:1.1rem}.msg-content strong{color:var(--text-primary);font-size:inherit}.msg-content a{color:var(--accent-bright);text-decoration:underline}.msg-content pre{background:#0a0d15;border:1px solid #ffffff0f;border-radius:14px;margin:14px 0;padding:36px 16px 16px;font-size:.9rem;position:relative;overflow-x:auto}.msg-content code{color:var(--accent-light);background:#6366f11a;border-radius:6px;padding:2px 7px;font-family:Fira Code,JetBrains Mono,Courier New,monospace;font-size:.9em}.msg-content pre code{color:#e6edf3;background:0 0;padding:0}.msg-content table{border-collapse:collapse;border:1px solid var(--border-hover);border-radius:10px;width:100%;margin:16px 0;font-size:.95rem;overflow:hidden}.msg-content thead th{color:var(--text-primary);text-transform:uppercase;letter-spacing:.4px;text-align:left;border-bottom:2px solid var(--border-hover);background:#6366f114;padding:10px 14px;font-size:.85rem;font-weight:600}.msg-content tbody td{border-bottom:1px solid var(--border-color);color:var(--text-primary);vertical-align:top;padding:10px 14px;line-height:1.6}.msg-content tbody tr:last-child td{border-bottom:none}.msg-content tbody tr:nth-child(2n){background:#ffffff05}.msg-content tbody tr:hover{background:#6366f10a}.code-lang-label{color:var(--text-muted);text-transform:uppercase;-webkit-user-select:none;user-select:none;border-bottom:1px solid var(--border-color);background:#0f1019f2;border-radius:14px 14px 0 0;padding:6px 16px;font-size:.72rem;font-weight:600;position:absolute;top:0;left:0;right:0}.code-actions{z-index:10;align-items:center;gap:2px;display:flex;position:absolute;top:4px;right:8px}.copy-code-btn,.download-code-btn,.run-code-btn{color:var(--text-secondary);cursor:pointer;opacity:1;transition:var(--transition);white-space:nowrap;background:#ffffff0f;border:1px solid #ffffff14;border-radius:6px;align-items:center;gap:5px;padding:4px 10px;font-family:inherit;font-size:.72rem;font-weight:500;display:flex}.copy-code-btn span,.run-code-btn span{pointer-events:none}.run-code-btn{color:#22c55e;background:#22c55e1a;border-color:#22c55e33}.run-code-btn:hover{color:#fff;background:#22c55e40;border-color:#22c55e66}.run-code-btn:disabled{opacity:.6;cursor:wait}.copy-code-btn:hover,.download-code-btn:hover{color:#fff;background:#ffffff1f;border-color:#ffffff29}.copy-code-btn.copied{color:#22c55e;background:#22c55e26;border-color:#22c55e4d}.code-output-panel{background:#0a0d15;border:1px solid #ffffff0f;border-top:none;border-radius:0 0 14px 14px;margin-top:-14px;margin-bottom:14px;animation:.2s fadeIn;overflow:hidden}.code-output-header{border-bottom:1px solid var(--border-color);color:var(--text-muted);text-transform:uppercase;letter-spacing:.3px;background:#ffffff08;justify-content:space-between;align-items:center;padding:6px 14px;font-size:.72rem;font-weight:600;display:flex}.code-output-header span{align-items:center;gap:6px;display:flex}.code-output-close{color:var(--text-muted);cursor:pointer;transition:var(--transition);background:0 0;border:none;border-radius:4px;padding:2px 6px;font-size:14px}.code-output-close:hover{color:#fff;background:#ffffff14}.code-output-body{color:#c9d1d9;white-space:pre-wrap;word-break:break-word;background:0 0;border:none;border-radius:0;max-height:300px;margin:0;padding:12px 16px;font-family:Fira Code,JetBrains Mono,monospace;font-size:.85rem;line-height:1.6;overflow-y:auto}.code-output-panel.running .code-output-body{color:var(--text-muted);align-items:center;gap:10px;font-family:inherit;font-size:.8rem;display:flex}.code-output-spinner{border:2px solid #22c55e33;border-top-color:#22c55e;border-radius:50%;width:14px;height:14px;animation:.8s linear infinite spin}.code-output-iframe{background:#fff;border:none;border-radius:0 0 14px 14px;width:100%;height:280px}.scrollable::-webkit-scrollbar{width:4px}.scrollable::-webkit-scrollbar-thumb{background:var(--accent);border-radius:10px}