:root[data-theme=dark]{--bg-0: #0a0e1a;--bg-1: #111827;--bg-2: #1f2937;--surface: rgba(31, 41, 55, .6);--surface-glass: rgba(255, 255, 255, .04);--border: rgba(255, 255, 255, .08);--border-strong: rgba(255, 255, 255, .16);--text: #e6edf3;--text-muted: #94a3b8;--text-faint: #64748b;--accent-1: #06b6d4;--accent-2: #3b82f6;--accent-3: #8b5cf6;--success: #10b981;--warning: #f59e0b;--danger: #ef4444;--shadow-glow: 0 0 80px -20px rgba(59, 130, 246, .4);--hero-bg: radial-gradient(circle at 20% 0%, rgba(59,130,246,.15), transparent 50%), radial-gradient(circle at 80% 100%, rgba(139,92,246,.1), transparent 50%);--code-bg: #0f172a;--modal-overlay: rgba(0, 0, 0, .7)}:root[data-theme=light]{--bg-0: #f8fafc;--bg-1: #ffffff;--bg-2: #f1f5f9;--surface: #ffffff;--surface-glass: rgba(0, 0, 0, .02);--border: rgba(0, 0, 0, .08);--border-strong: rgba(0, 0, 0, .16);--text: #0f172a;--text-muted: #475569;--text-faint: #94a3b8;--accent-1: #0891b2;--accent-2: #2563eb;--accent-3: #7c3aed;--success: #059669;--warning: #d97706;--danger: #dc2626;--shadow-glow: 0 12px 40px -12px rgba(37, 99, 235, .25);--hero-bg: radial-gradient(circle at 20% 0%, rgba(37,99,235,.08), transparent 50%), radial-gradient(circle at 80% 100%, rgba(124,58,237,.06), transparent 50%);--code-bg: #1e293b;--modal-overlay: rgba(15, 23, 42, .5)}:root{--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--radius-xl: 24px;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-sans);background:var(--hero-bg),var(--bg-0);color:var(--text);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}#app{min-height:100vh;display:flex;flex-direction:column}.container{max-width:1200px;margin:0 auto;padding:0 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