:root{font-family:system-ui,sans-serif;color:#17342f;background:#f5f3ed;line-height:1.65}*{box-sizing:border-box}body{margin:0}main{max-width:1240px;margin:auto;padding:40px 24px}.eyebrow{letter-spacing:.18em;font-size:12px;font-weight:700;color:#46695c}h1{font-size:clamp(30px,5vw,55px);line-height:1.2;margin:20px 0}h2{font-size:19px}.intro{max-width:760px;color:#465b53}.grid{display:grid;grid-template-columns:360px 1fr;gap:24px;margin-top:32px}.panel{padding:24px;border:1px solid #cdd5ca;background:white;border-radius:10px}label{display:block;font-size:14px;font-weight:650;margin-top:18px}input,select,button{font:inherit;width:100%;padding:12px;margin-top:8px;border:1px solid #8b9d91;border-radius:5px;background:#fff;color:inherit}button{background:#205945;color:white;font-weight:650;cursor:pointer;margin-top:22px;min-height:48px}button:disabled{background:#e5e9e5;color:#69756e;cursor:not-allowed}button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #c57613;outline-offset:3px}.check{display:flex;align-items:flex-start;gap:10px;font-weight:400}.check input{width:20px;height:20px;flex-shrink:0}.small{font-size:12px;color:#52655b}#status{padding:12px;background:#f0f4ef;min-height:70px;font-size:14px}iframe{width:100%;height:620px;border:1px solid #d4dbd4;background:#fafafa}.preview{min-width:0}details{margin:24px 0;padding:18px;border-top:1px solid #bbc8be}summary{cursor:pointer}@media(max-width:760px){main{padding:24px 16px}.grid{grid-template-columns:1fr;gap:16px}.panel{padding:18px}iframe{height:520px}}

pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:12px}#proof-meta{font-size:13px;overflow-wrap:anywhere}#use-proof{max-width:520px}