:root{--ink: #242830;--muted: #66707a;--line: #d5dae2;--accent: #4a5568;--accent-dark: #2d3748;--bg: #f6f7f9;--card: #fff}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}a{color:inherit}button{font-family:inherit;cursor:pointer}input,textarea,select{font-family:inherit;font-size:14px;padding:9px 11px;border:1px solid var(--line);border-radius:8px;width:100%;background:#fff;color:var(--ink)}.btn{display:inline-block;background:var(--accent);color:#fff;font-weight:600;padding:11px 18px;border-radius:9px;border:0;font-size:14px}.btn:hover{background:var(--accent-dark)}.btn.ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}.btn.sm{padding:7px 12px;font-size:13px}.btn:disabled{opacity:.5;cursor:not-allowed}.wrap{max-width:880px;margin:0 auto;padding:0 20px}