:root{--bg: #0b0d10;--fg: #e6e8eb;--muted: #8a93a0;--accent: #4ea1ff;--danger: #ef4444;--border: #1f242b;--card: #14181d}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,system-ui,sans-serif;background:var(--bg);color:var(--fg)}button{font-family:inherit;cursor:pointer}a{color:var(--accent)}.card{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:1.25rem}