:root{font-family:Inter,system-ui,sans-serif;color-scheme:dark}body{margin:0;background:#0b0f17;color:#e9eef7}.container{max-width:900px;margin:2rem auto;padding:1rem}.card{background:#121826;border-radius:14px;padding:1rem}input,select,button,textarea{padding:.6rem .8rem;border-radius:10px;border:1px solid #2a3350;background:#0b0f17;color:#e9eef7}button{background:#2563eb;border:none;cursor:pointer}.btn-danger{background:#e74c3c}.row{display:flex;gap:.75rem;align-items:center;flex-wrap:wrap}.mt{margin-top:.75rem}pre{background:#0b0f17;padding:.75rem;border-radius:8px;overflow:auto}a{color:#93c5fd;text-decoration:none}nav{display:flex;gap:1rem;margin-bottom:1rem}