:root{font-family:Inter,Segoe UI,Arial,sans-serif;color:#193a40;background:#f4f7f5;font-synthesis:none;line-height:1.55;--teal: #12645f;--border: #cbd8d2}*{box-sizing:border-box}body{margin:0}header{padding:22px max(24px,calc((100vw - 1140px)/2));display:flex;gap:24px;align-items:center;border-bottom:1px solid var(--border);background:#fff}.brand{display:flex;align-items:center;gap:12px;line-height:1.3;font-size:17px;min-width:230px}.brand-mark{font-size:46px;color:var(--teal)}.prototype{font-size:13px;background:#e7f0eb;padding:6px 14px;border-radius:20px;margin-left:auto;white-space:nowrap}nav{max-width:1140px;margin:auto;display:flex;gap:32px;padding:18px 24px}a{color:#0b5c58;text-underline-offset:4px}a:hover{text-decoration-thickness:2px}main{max-width:1140px;margin:40px auto 72px;padding:0 24px;min-height:55vh}.panel{background:#fff;border:1px solid var(--border);border-radius:18px;padding:36px;box-shadow:0 8px 30px 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0;margin:0}.preserve-lines{white-space:pre-wrap;overflow-wrap:anywhere}fieldset:disabled{opacity:.8}.skip:focus{top:12px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:760px){header{padding:16px;flex-wrap:wrap;gap:10px}.brand{font-size:15px;min-width:200px}.prototype{margin:0}.welcome{grid-template-columns:1fr;gap:28px;margin-top:0}.welcome h1{font-size:34px}main{margin:25px auto;padding:0 16px}.panel{padding:24px}.two{grid-template-columns:1fr;gap:0}nav{gap:20px;flex-wrap:wrap;padding:16px}.cards li{align-items:flex-start;flex-direction:column}.actions{margin-left:0}.section-heading{align-items:flex-start;flex-direction:column}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:16px;margin-block:20px}.card-grid section{border:1px solid 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