@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap";:root{--color-bg-base: #0f1117;--color-bg-surface: #161b22;--color-bg-elevated: #1e2533;--color-bg-hover: #242b38;--color-bg-active: #2d3748;--color-border: #2d3748;--color-border-light: #374151;--color-accent: #2563eb;--color-accent-hover: #1d4ed8;--color-accent-subtle: rgba(37, 99, 235, .12);--color-accent-glow: rgba(37, 99, 235, .25);--color-accent-2: #06b6d4;--color-text-primary: #e2e8f0;--color-text-secondary: #94a3b8;--color-text-muted: #64748b;--color-text-accent: #60a5fa;--color-success: #10b981;--color-warning: #f59e0b;--color-danger: #ef4444;--color-danger-subtle: rgba(239, 68, 68, .12);--color-info: #3b82f6;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .4);--shadow-md: 0 4px 12px rgba(0, 0, 0, .5);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .6);--shadow-accent: 0 0 20px var(--color-accent-glow);--sidebar-width: 240px;--notes-panel-width: 280px;--ai-panel-width: 300px;--toolbar-height: 48px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-normal: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .4s cubic-bezier(.4, 0, .2, 1);--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--font-sans: "Inter", system-ui, sans-serif;--font-mono: "JetBrains Mono", monospace}body.theme-light{--color-bg-base: #f8fafc;--color-bg-surface: #ffffff;--color-bg-elevated: #f1f5f9;--color-bg-hover: #e2e8f0;--color-bg-active: #cbd5e1;--color-border: #e2e8f0;--color-border-light: #cbd5e1;--color-text-primary: #0f172a;--color-text-secondary: #475569;--color-text-muted: #94a3b8;--color-text-accent: #2563eb;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 4px 12px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 32px rgba(0, 0, 0, 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var(--transition-normal),min-width var(--transition-normal),transform var(--transition-normal);z-index:30}.sidebar.collapsed{width:0;min-width:0;transform:translate(-100%)}.sidebar-header{border-bottom:1px solid var(--color-border);display:flex;align-items:center;gap:10px}.app-logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:15px;color:var(--color-text-primary);letter-spacing:-.02em}.app-logo-icon{width:28px;height:28px;background:linear-gradient(135deg,var(--color-accent),#8b5cf6);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0}.sidebar-search{padding:12px;border-bottom:1px solid var(--color-border)}.search-input-wrapper{position:relative}.search-input-wrapper svg{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--color-text-muted);pointer-events:none}.search-input{width:100%;background:var(--color-bg-elevated);border:1px solid 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button:hover{background:var(--color-bg-hover);color:var(--color-text-primary)}@media(max-width:960px){.notes-panel-container{position:fixed;left:var(--sidebar-width);top:0;bottom:0;box-shadow:var(--shadow-md)}}@media(max-width:640px){.notes-panel-container{width:100vw;min-width:100vw;left:0}}.user-info{display:flex;align-items:center;gap:10px}.user-avatar{width:32px;height:32px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--color-accent),#8b5cf6);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:13px;flex-shrink:0}.user-email{font-size:12px;color:var(--color-text-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.main-area{flex:1;display:flex;flex-direction:column;overflow:hidden;min-width:0}.topbar{height:var(--toolbar-height);background:var(--color-bg-surface);border-bottom:1px solid var(--color-border);display:flex;align-items:center;padding:0 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var(--color-border);color:var(--color-text-secondary);cursor:pointer;padding:6px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.wt-close-btn:hover{background:var(--color-danger-subtle);border-color:var(--color-danger);color:var(--color-danger)}.wt-note-title{font-size:14px;font-weight:600;color:var(--color-text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.wt-step-badge{display:flex;align-items:center;gap:4px;background:var(--color-accent-subtle);color:var(--color-accent);padding:4px 14px;border-radius:var(--radius-full);font-size:13px;font-weight:600;letter-spacing:-.01em}.wt-step-of{color:var(--color-text-muted);font-weight:400}.wt-overview-btn{display:flex;align-items:center;gap:6px;background:none;border:1px solid var(--color-border);color:var(--color-text-secondary);cursor:pointer;padding:6px 14px;border-radius:var(--radius-md);font-size:13px;font-weight:500;font-family:var(--font-sans);transition:all var(--transition-fast)}.wt-overview-btn:hover{background:var(--color-bg-hover);color:var(--color-text-primary)}.wt-overview-btn.active{background:var(--color-accent-subtle);border-color:var(--color-accent);color:var(--color-accent)}.wt-progress-track{position:relative;height:3px;background:var(--color-bg-elevated);flex-shrink:0;overflow:visible}.wt-progress-fill{height:100%;background:linear-gradient(90deg,var(--color-accent),var(--color-accent-2));transition:width .4s cubic-bezier(.4,0,.2,1);border-radius:0 3px 3px 0;position:relative}.wt-progress-fill:after{content:"";position:absolute;right:-1px;top:-4px;width:11px;height:11px;border-radius:50%;background:var(--color-accent);box-shadow:0 0 12px var(--color-accent-glow),0 0 4px var(--color-accent-glow)}.wt-progress-dots{position:absolute;top:-5px;left:0;right:0;display:flex;justify-content:space-between;padding:0 24px;pointer-events:all}.wt-progress-dot{width:13px;height:13px;border-radius:50%;border:2px solid var(--color-border);background:var(--color-bg-surface);cursor:pointer;padding:0;transition:all var(--transition-fast);position:relative}.wt-progress-dot.done{background:var(--color-accent);border-color:var(--color-accent)}.wt-progress-dot.active{background:var(--color-accent);border-color:var(--color-accent);box-shadow:0 0 0 4px var(--color-accent-subtle);transform:scale(1.15)}.wt-progress-dot:hover{border-color:var(--color-accent);transform:scale(1.2)}.wt-overview-overlay{position:absolute;inset:0;background:#00000080;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:50;display:flex;align-items:center;justify-content:center;animation:wt-fade-in .2s ease}.wt-overview-panel{background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);width:420px;max-width:90vw;max-height:70vh;display:flex;flex-direction:column;overflow:hidden;animation:wt-slide-up .3s ease}@keyframes wt-slide-up{0%{opacity:0;transform:translateY(20px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}.wt-overview-title{display:flex;align-items:center;gap:8px;padding:18px 20px;font-size:15px;font-weight:600;color:var(--color-text-primary);border-bottom:1px solid var(--color-border)}.wt-overview-list{overflow-y:auto;padding:8px}.wt-overview-item{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:var(--radius-md);background:none;border:none;width:100%;cursor:pointer;text-align:left;font-family:var(--font-sans);font-size:14px;color:var(--color-text-secondary);transition:all var(--transition-fast)}.wt-overview-item:hover{background:var(--color-bg-hover);color:var(--color-text-primary)}.wt-overview-item.active{background:var(--color-accent-subtle);color:var(--color-accent)}.wt-overview-num{width:28px;height:28px;border-radius:50%;background:var(--color-bg-elevated);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;flex-shrink:0;transition:all var(--transition-fast)}.wt-overview-item.active .wt-overview-num{background:var(--color-accent);color:#fff}.wt-overview-text{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.wt-overview-current{font-size:11px;font-weight:500;color:var(--color-accent);background:var(--color-accent-subtle);padding:2px 8px;border-radius:var(--radius-full);flex-shrink:0}.wt-body{flex:1;overflow-y:auto;display:flex;align-items:flex-start;justify-content:center;padding:40px 24px 60px}.wt-slide{width:100%;max-width:780px}.wt-slide-in{animation:wt-card-enter .35s cubic-bezier(.4,0,.2,1)}.wt-slide-out-next{animation:wt-card-exit-left .3s ease forwards;pointer-events:none}.wt-slide-out-prev{animation:wt-card-exit-right .3s ease forwards;pointer-events:none}@keyframes wt-card-enter{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}@keyframes wt-card-exit-left{0%{opacity:1;transform:translate(0)}to{opacity:0;transform:translate(-60px)}}@keyframes wt-card-exit-right{0%{opacity:1;transform:translate(0)}to{opacity:0;transform:translate(60px)}}.wt-card{background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);overflow:hidden}.wt-card-header{display:flex;align-items:center;gap:16px;padding:28px 36px;border-bottom:1px solid var(--color-border);background:linear-gradient(135deg,var(--color-accent-subtle) 0%,transparent 60%)}.wt-step-num{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--color-accent),var(--color-accent-2));display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;color:#fff;flex-shrink:0;box-shadow:0 4px 14px var(--color-accent-glow)}.wt-step-title{font-size:22px;font-weight:700;color:var(--color-text-primary);letter-spacing:-.02em;line-height:1.3;margin:0}.wt-card-body{padding:32px 36px 40px;min-height:auto!important}.wt-card-body.ProseMirror{min-height:auto}.wt-video-wrap{position:relative;width:100%;aspect-ratio:16 / 9;margin:1em 0;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--color-border);background:#000}.wt-video-wrap iframe,.wt-video-wrap video{position:absolute;top:0;left:0;width:100%;height:100%;border:none}.wt-footer{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;background:var(--color-bg-surface);border-top:1px solid var(--color-border);flex-shrink:0;gap:16px}.wt-nav-btn{display:flex;align-items:center;gap:6px;padding:10px 24px;border-radius:var(--radius-lg);border:1px solid var(--color-border);background:var(--color-bg-surface);color:var(--color-text-primary);font-size:14px;font-weight:500;font-family:var(--font-sans);cursor:pointer;transition:all var(--transition-fast);min-width:130px;justify-content:center}.wt-nav-btn:hover:not(:disabled){background:var(--color-bg-hover);border-color:var(--color-accent);color:var(--color-accent)}.wt-nav-btn:disabled{opacity:.35;cursor:not-allowed}.wt-nav-next{background:linear-gradient(135deg,var(--color-accent),var(--color-accent-hover));border-color:var(--color-accent);color:#fff}.wt-nav-next:hover:not(:disabled){background:linear-gradient(135deg,var(--color-accent-hover),var(--color-accent));color:#fff;box-shadow:var(--shadow-accent)}.wt-footer-info{flex:1;text-align:center;overflow:hidden}.wt-footer-step-name{font-size:13px;color:var(--color-text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block}.wt-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:16px;color:var(--color-text-muted);text-align:center;padding:40px}.wt-empty h2{font-size:20px;font-weight:600;color:var(--color-text-primary);margin:0}.wt-empty p{font-size:14px;max-width:360px;line-height:1.6}@media(max-width:768px){.wt-header{padding:10px 14px}.wt-note-title,.wt-overview-btn span{display:none}.wt-body{padding:20px 12px 40px}.wt-card-header{padding:20px;gap:12px}.wt-step-num{width:36px;height:36px;font-size:15px}.wt-step-title{font-size:18px}.wt-card-body{padding:20px 20px 28px}.wt-footer{padding:10px 14px}.wt-nav-btn{padding:8px 16px;min-width:100px;font-size:13px}.wt-footer-info{display:none}.wt-progress-dots{padding:0 14px}}