:root{--bg-dark: #0a0e1a;--bg-card: #141b2d;--bg-surface: #1e2742;--bg-hover: #253352;--border: #2a3655;--text-primary: #e2e8f0;--text-secondary: #94a3b8;--text-muted: #64748b;--accent: #3b82f6;--accent-hover: #2563eb;--accent-cyan: #06b6d4;--accent-green: #10b981;--accent-red: #ef4444;--font-sans: "Inter", system-ui, -apple-system, sans-serif;--radius: 10px;--radius-lg: 14px}*{margin:0;padding:0;box-sizing:border-box}html,body,#app{height:100%}body{font-family:var(--font-sans);background:var(--bg-dark);color:var(--text-primary);-webkit-font-smoothing:antialiased;overscroll-behavior:none}a{color:var(--accent-cyan);text-decoration:none}a:hover{text-decoration:underline}button{font-family:var(--font-sans);cursor:pointer;border:none;border-radius:var(--radius);font-size:16px;transition:background .15s,transform .05s;-webkit-tap-highlight-color:transparent;touch-action:manipulation}button:active{transform:scale(.97)}button:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff;padding:14px 22px;font-weight:600}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-ghost{background:var(--bg-surface);color:var(--text-primary);padding:12px 18px}.btn-ghost:hover:not(:disabled){background:var(--bg-hover)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}