:root { --bg:#f6f7fb; --surface:#fff; --surface2:#f1f3f9; --text:#0f172a; --muted:#5b6475; --line:#e3e7ef; --accent:#4f6bff; --accent2:#8a5cff; --shadow:0 10px 30px rgba(15,23,42,.06); }
@media (prefers-color-scheme: dark) { :root { --bg:#0b0f1a; --surface:#121829; --surface2:#182035; --text:#e8ecf5; --muted:#9aa4b8; --line:#232c42; --shadow:0 10px 30px rgba(0,0,0,.35); } }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, Inter, sans-serif; }
a { color: var(--accent); } a:hover { text-decoration: none; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
header.top { border-bottom: 1px solid var(--line); background: var(--surface); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 62px; }
.brand { font-weight: 800; font-size: 19px; color: var(--text); text-decoration: none; letter-spacing: -.01em; }
.brand span { background: linear-gradient(90deg, var(--accent), var(--accent2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
header nav { display: flex; gap: 18px; font-size: 14px; } header nav a { color: var(--muted); text-decoration: none; } header nav a:hover { color: var(--text); }
.hero { text-align: center; padding: 64px 0 28px; }
.hero h1 { font-size: clamp(30px, 5vw, 46px); line-height: 1.15; margin: 0 0 12px; letter-spacing: -.02em; }
.hero p { color: var(--muted); font-size: 18px; max-width: 640px; margin: 0 auto; }
.choices { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; padding: 26px 0 40px; }
.choice { display: flex; flex-direction: column; gap: 12px; background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 28px; box-shadow: var(--shadow); text-decoration: none; color: var(--text); transition: transform .15s, border-color .15s; }
.choice:hover { transform: translateY(-3px); border-color: var(--accent); }
.choice .ico { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; color: #fff; font-size: 26px; background: linear-gradient(135deg, var(--accent), var(--accent2)); }
.choice.edu .ico { background: linear-gradient(135deg, #0ea5e9, #22c55e); }
.choice h2 { margin: 4px 0 0; font-size: 24px; } .choice .url { color: var(--muted); font-size: 14px; margin-top: -8px; }
.choice ul { margin: 0; padding-left: 18px; color: var(--muted); } .choice li { margin: 3px 0; }
.choice .go { margin-top: auto; font-weight: 700; color: var(--accent); }
.note { max-width: 760px; margin: 0 auto 50px; text-align: center; color: var(--muted); font-size: 14px; }
.legal { max-width: 820px; margin: 36px auto 50px; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 30px 34px; box-shadow: var(--shadow); }
.legal h1 { margin: 2px 0 4px; font-size: 30px; letter-spacing: -.01em; } .legal h2 { font-size: 18px; margin: 26px 0 6px; }
.crumb { text-transform: uppercase; letter-spacing: .07em; font-size: 12px; color: var(--muted); margin: 0; }
.muted { color: var(--muted); } .small { font-size: 13px; }
.toc { background: var(--surface2); border-radius: 12px; padding: 14px 18px; margin: 18px 0 8px; }
.toc ol { margin: 6px 0 0; padding-left: 20px; columns: 2; column-gap: 30px; } .toc li { break-inside: avoid; margin: 2px 0; }
.legal section { scroll-margin-top: 20px; }
.more { display: flex; flex-wrap: wrap; gap: 8px 18px; border-top: 1px solid var(--line); margin-top: 28px; padding-top: 14px; font-size: 14px; }
footer.foot { border-top: 1px solid var(--line); padding: 24px 0 36px; font-size: 13px; color: var(--muted); }
footer.foot .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
footer.foot nav { display: flex; flex-wrap: wrap; gap: 6px 16px; } footer.foot a { color: var(--muted); }
@media (max-width: 760px) { .choices { grid-template-columns: 1fr; } .legal { padding: 22px 18px; margin: 20px 12px 36px; } .toc ol { columns: 1; } header nav { gap: 12px; } .hero { padding-top: 40px; } }