*{box-sizing:border-box}body{margin:0;font:16px/1.5 system-ui,sans-serif;background:#122029;color:#eef6f9}main{max-width:960px;margin:auto;padding:28px}h1{font-size:24px;margin:0 0 10px}p{color:#b9cbd4}label{display:block;margin:16px 0 6px;font-weight:600}input,textarea{width:100%;padding:12px;border:1px solid #49616e;background:#0d1921;color:#fff;border-radius:6px;font:inherit}input::placeholder,textarea::placeholder{color:#91a9b7}.fields{display:grid;grid-template-columns:1fr 1fr;gap:18px}.help{font-size:13px;margin:8px 0}.consent{display:flex;gap:10px;align-items:flex-start;font-size:14px;font-weight:400}.consent input{width:20px;height:20px;flex-shrink:0;accent-color:#2584a3}button{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border:0;border-radius:6px;background:#2182a2;color:#fff;font:600 16px system-ui;cursor:pointer;margin-top:12px}input:focus-visible,textarea:focus-visible,button:focus-visible{outline:3px solid #53c6e6;outline-offset:2px}.error{padding:12px;background:#45252c;color:#ffced7;border:1px solid #ba6678;border-radius:6px}.trap{position:absolute;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden}@media(max-width:600px){main{padding:20px}.fields{grid-template-columns:1fr;gap:0}}
.book-levels{border:0;padding:0;margin:20px 0}.book-levels legend{font-weight:600}.level-options{display:flex;gap:12px;flex-wrap:wrap}.level-option{display:flex;align-items:center;gap:10px;padding:12px 16px;border:1px solid #49616e;border-top:3px solid var(--level-color);border-radius:6px;margin:4px 0;cursor:pointer}.level-option input{width:20px;height:20px;margin:0;accent-color:var(--level-color)}.level-option:has(input:checked){background:#233d48;border-color:var(--level-color)}.level-10{--level-color:#50b6b4}.level-11{--level-color:#f39200}.level-12{--level-color:#529ddd}