:root{color-scheme:light;--navy:#111827;--yellow:#facc15;--gray:#6b7280;--green:#16a34a}
*{box-sizing:border-box}body{margin:0;background:#f5f6f8;color:var(--navy);font:16px/1.6 system-ui,sans-serif}a{color:inherit}header{background:var(--navy);color:white;padding:20px max(20px,calc((100vw - 1000px)/2));display:flex;gap:20px;align-items:center;flex-wrap:wrap}header img{width:130px}header nav{display:flex;gap:18px;align-items:center;margin-left:auto}main{max-width:900px;padding:32px 20px;margin:auto}h1{line-height:1.2}h2{font-size:21px}.card{background:#fff;padding:26px;border:1px solid #dce0e6;border-radius:14px;margin:22px 0;box-shadow:0 5px 20px #11182705}label{display:block;font-weight:650;margin:16px 0 6px}input{display:block;width:100%;padding:12px 14px;border:1px solid #aeb5c0;border-radius:7px;font:inherit}input[readonly]{background:#f3f4f6;color:#4b5563}.grid{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}button,.button{display:inline-block;border:1px solid transparent;border-radius:7px;background:var(--yellow);color:var(--navy);padding:11px 17px;font:650 15px system-ui;cursor:pointer;text-decoration:none;margin:16px 10px 0 0}button.secondary{border-color:#aeb5c0;background:white}button:disabled{cursor:wait;opacity:.6}:focus-visible{outline:3px solid #2563eb;outline-offset:3px}.muted,small{color:var(--gray)}.notice{white-space:pre-wrap;border-left:4px solid var(--green);padding:12px 16px;background:#ecfdf5}.notice.error{border-color:#dc2626;background:#fef2f2}.session{border-top:1px solid #e5e7eb;padding:14px 0;overflow-wrap:anywhere}.session p{margin:3px 0}footer{text-align:center;padding:28px 15px;color:var(--gray);font-size:13px}header button{margin:0;background:transparent;color:#fff;border-color:#6b7280;padding:7px 12px}@media(max-width:600px){.grid{grid-template-columns:1fr}header nav{margin:0;gap:12px}.card{padding:20px}h1{font-size:29px}}
input[type=checkbox]{display:inline;width:auto;height:18px;vertical-align:middle;accent-color:var(--green);margin-right:6px}select{display:block;width:100%;padding:12px 14px;border:1px solid #aeb5c0;border-radius:7px;font:inherit;background:#fff}code{overflow-wrap:anywhere}header img{background:white;border-radius:6px;padding:4px}header a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #2563eb;outline-offset:3px}