*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #0a0e1a;--bg-secondary: #0f1422;--bg-tertiary: #141a2e;--bg-elevated: #1a2140;--bg-hover: #1e2744;--glass-bg: rgba(20, 26, 46, .7);--glass-border: rgba(99, 132, 255, .15);--glass-shadow: 0 8px 32px rgba(0, 0, 0, .4);--glass-blur: blur(20px);--accent-primary: #6384ff;--accent-secondary: #8b5cf6;--accent-gradient: linear-gradient(135deg, #6384ff, #8b5cf6);--accent-glow: 0 0 20px rgba(99, 132, 255, .3);--text-primary: #e8ecf4;--text-secondary: #8892b0;--text-muted: #5a6380;--text-accent: #6384ff;--success: #10b981;--warning: #f59e0b;--error: #ef4444;--info: #3b82f6;--border-subtle: rgba(99, 132, 255, .1);--border-medium: rgba(99, 132, 255, .2);--border-strong: rgba(99, 132, 255, .35);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--sidebar-width: 280px;--panel-gap: 1px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 20px;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s cubic-bezier(.4, 0, .2, 1)}html,body{height:100%;font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;overflow:hidden}#root{height:100%}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--text-muted);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}h1,h2,h3,h4{color:var(--text-primary);font-weight:700;letter-spacing:-.02em;line-height:1.3}h1{font-size:1.75rem}h2{font-size:1.35rem}h3{font-size:1.1rem}h4{font-size:.95rem}a{color:var(--accent-primary);text-decoration:none;transition:color 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auto;width:100%}.notebook-card{background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:20px;cursor:pointer;transition:all var(--transition-normal);position:relative;overflow:hidden}.notebook-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent-gradient);opacity:0;transition:opacity var(--transition-fast)}.notebook-card:hover{transform:translateY(-2px);border-color:var(--border-medium);box-shadow:0 12px 40px #0006}.notebook-card:hover:before{opacity:1}.notebook-card-icon{font-size:2rem;margin-bottom:12px}.notebook-card-title{font-size:1rem;font-weight:600;color:var(--text-primary);margin-bottom:6px}.notebook-card-meta{font-size:.78rem;color:var(--text-muted)}.notebook-card-new{border:2px dashed 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