:root{--bg: #0b0d12;--card: #14171f;--border: #1f2430;--fg: #e6e9ef;--muted: #6b7280;--accent: #6366f1;--accent-hover: #818cf8;--shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 4px 16px rgba(0, 0, 0, .25);color-scheme:dark}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;height:100%;background:var(--bg);color:var(--fg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:15px;line-height:1.5}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover)}button{font:inherit;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}