:root{--sea:#0b6e79;--sea-dk:#084f57;--sun:#f4a259;--sand:#fbf6ee;--ink:#1d2b30;--muted:#55666c;--card:#ffffff;--line:#e6ddd0}
@media (prefers-color-scheme:dark){:root{--sand:#10191c;--ink:#eef3f3;--muted:#a9b8bb;--card:#18252a;--line:#2a3a40;--sea:#4fb3bd;--sea-dk:#7fd0d8}}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--sand);line-height:1.6}
a{color:var(--sea)}
.wrap{max-width:980px;margin:0 auto;padding:0 20px}
header{padding:20px 0}
.brand{font-weight:700;font-size:1.15rem;color:var(--ink);text-decoration:none}
.brand span{color:var(--sea)}
.hero{padding:56px 0 40px}
.hero h1{font-size:clamp(2rem,5vw,3.1rem);line-height:1.15;margin:0 0 16px;max-width:16em}
.hero p{font-size:1.15rem;color:var(--muted);max-width:38em;margin:0 0 24px}
.badge{display:inline-block;background:var(--sun);color:#1d2b30;font-weight:600;font-size:.85rem;padding:4px 12px;border-radius:999px;margin-bottom:18px}
.btn{display:inline-block;background:var(--sea);color:#fff;text-decoration:none;font-weight:600;padding:12px 22px;border-radius:10px}
@media (prefers-color-scheme:dark){.btn{color:#10191c}}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin:8px 0 48px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px}
.card h3{margin:0 0 6px;font-size:1.05rem;color:var(--sea-dk)}
.card p{margin:0;color:var(--muted)}
h2{font-size:1.5rem;margin:0 0 14px}
.band{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:40px 0;margin-bottom:40px}
.band p{color:var(--muted);max-width:40em}
footer{padding:24px 0 40px;color:var(--muted);font-size:.9rem}
footer p{margin:6px 0}
.doc h1{font-size:2rem;margin:24px 0 8px}
.doc h2{font-size:1.2rem;margin:28px 0 8px}
.doc p,.doc li{color:var(--ink);max-width:44em}

/* ODH-001 accessible, image-free identity and guided preview */
.skip{position:absolute;left:12px;top:-80px;z-index:9;background:var(--card);padding:10px}.skip:focus{top:5px}
a:focus-visible{outline:3px solid var(--sun);outline-offset:4px}
.head-row{display:flex;justify-content:space-between;align-items:center;gap:18px}
.head-row nav{display:flex;gap:20px;flex-wrap:wrap;font-size:.9rem;font-weight:650}
.brand{display:inline-flex;align-items:center;flex-wrap:wrap;gap:3px}
.brand-mark{display:inline-grid;place-items:center;background:var(--sea-dk);color:#fff;border-radius:9px;font-size:.65rem;letter-spacing:.06em;width:38px;height:38px;margin-right:8px}
.kicker{text-transform:uppercase;letter-spacing:.13em;font-size:.75rem;font-weight:800;color:var(--sea-dk)}
.about,.preview{padding:52px 0}.about p,.preview p{max-width:68ch;color:var(--muted)}
.preview{background:var(--card);border-block:1px solid var(--line)}
.questions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;list-style:none;counter-reset:plan;padding:0}
.questions li{counter-increment:plan;padding:22px;border:1px solid var(--line);border-radius:14px;background:var(--sand)}
.questions li::before{content:counter(plan,decimal-leading-zero);display:block;font-weight:800;color:var(--sea-dk);margin-bottom:12px}
.questions strong,.questions span{display:block}.questions span{margin-top:8px;color:var(--muted)}
.preview-note{font-size:.9rem}
@media(max-width:640px){.head-row{align-items:flex-start;flex-direction:column}.head-row nav{gap:12px}.questions{grid-template-columns:1fr}.about,.preview{padding:38px 0}}