:root{color-scheme:light;--ink:#162540;--edge:#d4dfec;--accent:#1d5670}*{box-sizing:border-box}body{margin:0;font:16px/1.5 system-ui,sans-serif;background:#eef3f8;color:var(--ink)}header{display:flex;justify-content:space-between;gap:1rem;align-items:center;padding:1.1rem max(1rem,calc((100% - 1100px)/2));background:#142741;color:#fff}header a{color:#fff;font-weight:750;text-decoration:none}main{max-width:1100px;margin:auto;padding:2rem 1rem 4rem}.intro{background:linear-gradient(120deg,#112f49,#21516b);color:#fff;border-radius:22px;padding:clamp(1.4rem,5vw,3rem)}.eyebrow{font-weight:800;letter-spacing:.14em;font-size:.8rem;color:#89e3e3}h1{font-size:clamp(2rem,5vw,3.4rem);line-height:1.05;margin:.3rem 0 1rem}.notice{padding:.8rem 1rem;border-left:4px solid #8ce3d8;background:#ffffff16}.controls{display:flex;flex-wrap:wrap;gap:1rem;margin-top:1.5rem}label{display:grid;gap:.4rem;font-weight:650}select{font:inherit;min-height:44px;min-width:12rem;padding:.5rem;color:var(--ink);border:1px solid #becbd8;border-radius:9px;background:white}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:1rem;margin-top:1.5rem}.card{background:#fff;border:1px solid var(--edge);border-radius:16px;padding:1.25rem;display:flex;flex-direction:column}.card h2{font-size:1.12rem;margin:0}.card p{flex:1}.button{display:inline-flex;justify-content:center;align-items:center;min-height:44px;padding:.65rem .8rem;border-radius:9px;background:#12546a;color:#fff;font-weight:700;text-decoration:none}a:focus-visible,select:focus-visible{outline:3px solid #eeae32;outline-offset:3px}@media(max-width:450px){header{font-size:.85rem}.controls label,.controls select{width:100%}}
:root[data-ui-theme=dark]{color-scheme:dark;--ink:#eaf4ff;--edge:#4b6179;--accent:#9ee2e5}
:root[data-ui-theme=dark] body{background:#0d1929;color:var(--ink)}
:root[data-ui-theme=dark] header{background:#0a1424}
:root[data-ui-theme=dark] .intro{background:linear-gradient(120deg,#112941,#23465c)}
:root[data-ui-theme=dark] .card{background:#1b2b40;border-color:var(--edge)}
:root[data-ui-theme=dark] select{background:#23364d;border-color:#718398;color:#f2f7ff}
:root[data-ui-theme=dark] .button{background:#b6ecea;color:#123447}