body{font-family:system-ui,Arial;background:#f5f7fb;color:#222;padding:20px}
.container{max-width:720px;margin:0 auto;background:#fff;padding:20px;border-radius:8px;box-shadow:0 6px 20px rgba(0,0,0,.06)}
label{display:block;margin-top:12px;font-weight:600}
input,textarea,button{width:100%;padding:8px;margin-top:6px;border:1px solid #ddd;border-radius:6px}
.controls{display:flex;gap:8px;margin-top:8px}
.controls button{width:auto}