body{margin:0;min-height:100vh;display:grid;place-items:center;background:#0a0e1a;font-family:system-ui,-apple-system,Segoe UI,sans-serif}form{width:min(340px,90vw);background:#f5f3ec;border-top:3px solid #c9a961;border-radius:6px;padding:28px;display:flex;flex-direction:column;gap:14px}.marka{font-family:Consolas,monospace;letter-spacing:.18em;font-weight:700;text-align:center;margin-bottom:6px}.marka span{color:#826829}label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:#4a5264}input{padding:9px 10px;border:1px solid #e4e0d3;border-radius:4px;font-size:14px;background:#fff}input:focus{outline:none;border-color:#c9a961}button{padding:10px;border:0;border-radius:4px;background:#0a0e1a;color:#fff;font-size:14px;cursor:pointer}#hata{margin:0;min-height:18px;color:#b23a3a;font-size:13px}