:root{--bg:#0f1115;--panel:#1a1d24;--text:#e6e8ec;--muted:#9aa0ab;--accent:#6c8cff;--border:#2a2e38}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text)}.topbar{display:flex;align-items:center;gap:24px;padding:16px 24px;border-bottom:1px solid var(--border)}.brand{font-weight:700;font-size:18px;text-decoration:none;color:var(--text)}.topbar nav a{color:var(--muted);text-decoration:none}.topbar nav a:hover{color:var(--text)}.container{max-width:720px;margin:0 auto;padding:32px 24px}a{color:var(--accent)}.form{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0 24px}.form input{padding:8px 12px;background:var(--panel);border:1px solid var(--border);border-radius:8px;color:var(--text)}.form button{padding:8px 16px;background:var(--accent);border:none;border-radius:8px;color:#fff;cursor:pointer}.form button:disabled{opacity:.6;cursor:not-allowed}.error{color:#ff6b6b;width:100%}.board{width:100%;border-collapse:collapse}.board td,.board th{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border)}.board th{color:var(--muted);font-weight:600}