:root{--bg-primary: #0a0a0b;--bg-secondary: #111113;--bg-tertiary: #18181b;--bg-card: #141416;--bg-card-hover: #1c1c1f;--text-primary: #fafafa;--text-secondary: #a1a1aa;--text-tertiary: #52525b;--text-muted: #3f3f46;--accent-primary: #fafafa;--accent-secondary: #e4e4e7;--accent-glow: rgba(255, 255, 255, .08);--border-subtle: rgba(255, 255, 255, .06);--border-default: rgba(255, 255, 255, .1);--border-hover: rgba(255, 255, 255, .15);--shadow-sm: 0 1px 2px 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-glow: 0 0 40px var(--accent-glow);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--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);--font-sans: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "Space Mono", "JetBrains Mono", monospace;--header-height: 72px;--controls-height: 72px}[data-theme=light]{--bg-primary: #fafafa;--bg-secondary: #f4f4f5;--bg-tertiary: #e4e4e7;--bg-card: #ffffff;--bg-card-hover: #f8f8f8;--text-primary: #18181b;--text-secondary: #52525b;--text-tertiary: #a1a1aa;--text-muted: #d4d4d8;--accent-primary: #18181b;--accent-secondary: #27272a;--accent-glow: rgba(0, 0, 0, .05);--border-subtle: rgba(0, 0, 0, .04);--border-default: rgba(0, 0, 0, .08);--border-hover: rgba(0, 0, 0, .12);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .12)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.header{position:fixed;top:0;left:0;right:0;height:var(--header-height);background:#0a0a0bd9;-webkit-backdrop-filter:blur(20px) 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