:root{color-scheme:light;--ink:#203731;--muted:#677970;--line:#dde5df;--green:#236349;--paper:#fff;--bg:#f5f7f3}*{box-sizing:border-box}body{margin:0;background:var(--bg);font:15px/1.6 system-ui,-apple-system,sans-serif;color:var(--ink)}header{height:90px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(5vw,24px);background:#fff9}.brand{text-decoration:none;font-size:25px;font-weight:750;letter-spacing:-1px;color:var(--green)}.brand span{color:var(--ink)}.brand small{font-size:9px;letter-spacing:1.5px;display:block;line-height:1.2;font-weight:600}nav{display:flex;gap:28px;align-items:center}a{color:var(--green);text-underline-offset:4px}nav a{font-size:13px;text-decoration:none}.version{color:var(--muted);font-size:12px;border-left:1px solid var(--line);padding-left:24px}main{max-width:1360px;margin:auto;padding:50px max(4vw,22px) 24px}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:750;color:var(--green)}h1{font-size:clamp(29px,3.5vw,44px);letter-spacing:-1.6px;line-height:1.16;font-weight:650;margin:16px 0}.intro>p:last-child{color:var(--muted);margin:0 0 36px}.workspace{display:grid;grid-template-columns:340px 1fr;gap:24px;align-items:start}.card{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:25px;box-shadow:0 4px 18px #20373103}.section-heading{display:flex;align-items:center;gap:10px;margin-bottom:22px}.step{color:var(--muted);border:1px solid var(--line);border-radius:50%;width:25px;height:25px;display:grid;place-items:center;font-size:10px}h2{font-size:15px;margin:0;font-weight:650}h3{font-size:15px;margin:0 0 14px}.dropzone{border:1px dashed #b8c9be;border-radius:8px;background:#f8faf7;min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;text-align:center;padding:16px;cursor:pointer}.dropzone.drag{background:#e7f2e8;border-color:var(--green)}.upload-icon{font-size:28px;width:48px;height:48px;border:1px solid var(--line);border-radius:10px;background:white;margin-bottom:10px}.dropzone strong{font-size:14px}.dropzone>span:not(.upload-icon){color:var(--muted);font-size:12px}.dropzone small{font-size:10px;color:var(--muted);margin-top:12px}input[type=file]{max-width:100%;font-size:10px;margin-top:6px}.filename{font-size:12px;overflow-wrap:anywhere;color:var(--muted);min-height:20px}button{font:inherit;font-size:13px;font-weight:600;cursor:pointer;border:0;border-radius:6px;background:var(--green);color:white;padding:13px 18px;width:100%;display:flex;justify-content:space-between;align-items:center;gap:14px}button:hover{background:#194d37}button:disabled{opacity:.5;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #69a388;outline-offset:4px}.privacy{font-size:11px;color:var(--muted);margin:18px 0 0}.checks{padding:28px 10px}.checks h3{font-size:12px}.checks p{font-size:12px;color:var(--muted);margin:10px 0}.checks p span{font-size:10px;color:#89998f;margin-right:14px}.checks a{font-size:11px;display:inline-block;margin-top:8px}.results{min-height:490px}.badge{margin-left:auto;font-size:10px;padding:4px 9px;border-radius:20px;background:#edf1ed;color:var(--muted);white-space:nowrap}.badge.valid{background:#e3f1e7;color:#206441}.badge.invalid,.badge.unsupported{background:#fff0e8;color:#9b4229}.status{font-size:13px;color:var(--muted);padding:12px 0;border-top:1px solid var(--line)}.status.error{color:#ad382c}.empty{text-align:center;padding:68px 15px 38px;max-width:340px;margin:auto}.empty p{font-size:12px;color:var(--muted)}.document-icon{border:1px solid var(--line);border-radius:8px;width:57px;height:69px;line-height:60px;font-size:38px;color:#a6b9aa;margin:0 auto 20px;transform:rotate(-7deg)}.empty h3{font-size:17px}.issues{padding:0;list-style:none}.issues li{padding:13px;border-left:3px solid #bd694c;background:#fff8f4;margin:12px 0;font-size:12px;overflow-wrap:anywhere}.issues li.warning{border-color:#c69a30;background:#fffcf0}.issues code{font-size:10px;display:block;margin:5px 0;color:#53675a}.ruleset{font-size:10px;color:var(--muted);overflow-wrap:anywhere}.preview-heading{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding:20px 0}.preview-heading h3{margin:0}.secondary{width:auto;font-size:11px;padding:9px 12px}iframe{width:100%;height:850px;border:1px solid var(--line);background:white;border-radius:6px}footer{display:flex;justify-content:space-between;border-top:1px solid var(--line);font-size:10px;color:var(--muted);padding:22px 0;margin-top:35px}[hidden]{display:none!important}.api{max-width:880px}.api pre{white-space:pre-wrap;background:#eaf0e9;padding:16px;border-radius:8px;overflow-wrap:anywhere}.api table{width:100%;border-collapse:collapse}.api td,.api th{text-align:left;padding:12px;border-bottom:1px solid var(--line)}@media(max-width:850px){.workspace{grid-template-columns:1fr}.checks{display:none}main{padding-top:28px}.results{min-height:400px}.dropzone{min-height:165px}.version{display:none}header{height:72px}.badge{font-size:9px}.card{padding:20px}.empty{padding-top:40px}.desktop{display:none}footer{gap:20px}iframe{height:720px}}