:root{--blue:#315efb;--ink:#152033;--line:#dce3ef;--muted:#627087}*{box-sizing:border-box}body{margin:0;background:#f7f9fc;color:var(--ink);font:17px/1.55 Arial,sans-serif}header{background:#fff;border-bottom:1px solid var(--line)}nav{max-width:1080px;margin:auto;padding:22px;display:flex;justify-content:space-between;gap:18px}a{color:var(--blue)}.brand{font-size:22px;font-weight:bold;color:var(--ink);text-decoration:none}main{max-width:900px;margin:50px auto;padding:0 22px 40px}h1{font-size:44px;letter-spacing:-1.5px;line-height:1.15;margin:12px 0}h2{font-size:25px;line-height:1.3}section{background:white;border:1px solid var(--line);border-radius:20px;margin:25px 0;padding:28px}.eyebrow{color:var(--blue);font-size:13px;font-weight:bold;letter-spacing:2px}.intro,.muted{color:var(--muted)}.notice{padding:16px 20px;background:#fff5d9;border-radius:12px}.badge{display:inline-block;border-radius:10px;background:#eaf0ff;padding:8px 16px;font-weight:bold}label{display:block;font-weight:600;margin-top:18px}input{display:block;width:100%;font:inherit;padding:13px;border:1px solid #c7d2e6;border-radius:10px;margin:7px 0 18px}input[readonly]{background:#f0f3f9}.check{display:flex;gap:12px;align-items:flex-start;font-weight:normal}.check input{width:20px;height:20px;flex-shrink:0;margin:4px 0}button,.button{display:inline-block;border:1px solid #ccd7e9;border-radius:11px;background:#fff;color:var(--ink);font:600 16px Arial,sans-serif;padding:14px 18px;cursor:pointer;text-decoration:none;margin:10px 0}button.primary{background:var(--blue);color:white;border-color:var(--blue)}button:disabled{opacity:.5;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #8ba6ff;outline-offset:3px}#preview{display:block;max-width:100%;height:auto;margin:16px auto;border:1px solid var(--line)}.previewControls{display:flex;align-items:center;justify-content:space-between;gap:12px}#message{color:#b22b35;overflow-wrap:anywhere}[hidden]{display:none!important}@media(max-width:600px){main{margin-top:28px;padding:0 15px}h1{font-size:34px}section{padding:18px}.previewControls button{padding:12px 10px;font-size:14px}nav{font-size:14px}.brand{font-size:19px}}