:root{color-scheme:dark;--bg-primary: #0f1117;--bg-secondary: #161b22;--bg-tertiary: #1c2128;--accent: #4fa3e0;--accent-muted: rgba(79, 163, 224, .18);--text-primary: #e6edf3;--text-secondary: #8b949e;--border: #30363d;--danger: #f85149;--success: #3fb950;--warning: #d29922;--radius: 6px;--shadow: 0 20px 60px rgba(0, 0, 0, .35)}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%;background:radial-gradient(circle at top,rgba(79,163,224,.08),transparent 24%),linear-gradient(180deg,#0b0e14,#0f1117);color:var(--text-primary);font-family:Inter,sans-serif}body{min-height:100vh}button,input,textarea,select{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.mono{font-family:JetBrains Mono,monospace}.surface{background:#161b22eb;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.app-shell{display:grid;grid-template-columns:320px minmax(0,1fr) 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