body{font-family:Arial,sans-serif;background:#f5f5f5;margin:0;color:#222}.container{max-width:900px;margin:30px auto;background:#fff;padding:25px;border-radius:10px;box-shadow:0 2px 12px #0002}h1{margin-top:0}h2{margin-top:28px;border-bottom:1px solid #ddd;padding-bottom:6px}label{display:block;margin:12px 0;font-weight:bold}input,select,textarea{box-sizing:border-box;width:100%;padding:10px;margin-top:5px;border:1px solid #bbb;border-radius:6px}textarea{min-height:90px}.check{font-weight:normal}button{background:#111;color:white;border:0;border-radius:6px;padding:13px 20px;font-size:16px;cursor:pointer}.success{background:#d9f6df;padding:12px;border:1px solid #80c090;border-radius:6px}.error{background:#ffdede;padding:12px;border:1px solid #c08080;border-radius:6px}.info-box{background:#f4f7fb;border:1px solid #cfd9e6;border-left:4px solid #173a68;padding:14px;margin:12px 0 18px;line-height:1.6;border-radius:6px;font-size:14px;color:#2d3748}