/* Public Learn pages (/learn, /hi/learn, ...): light, fast, readable without JavaScript */
:root { --bg: #f4f6fb; --card: #ffffff; --text: #101828; --muted: #5b6474; --line: #e3e7ef; --brand: #0b2a5b; --brand-2: #1b46a8; --gold: #c99000; --accent: #e0a200; --soft: #eef3ff; }
@media (prefers-color-scheme: dark) { :root { --bg: #0d1117; --card: #161b26; --text: #e8ecf3; --muted: #9aa4b5; --line: #263042; --brand: #c9d6f2; --brand-2: #8fb0ff; --gold: #f2c14e; --soft: #1a2333; } }
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--text); font: 16px/1.65 "Inter", "Segoe UI", system-ui, -apple-system, Roboto, "Nirmala UI", "Noto Sans Devanagari", "Noto Sans Kannada", "Noto Sans Telugu", sans-serif; -webkit-font-smoothing: antialiased; }
a { color: var(--brand-2); text-underline-offset: 3px; }
.wrap { max-width: 820px; margin: 0 auto; padding: 0 16px; }
.top { background: var(--card); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--brand); font-size: 19px; }
.brand img { border-radius: 8px; }
.brand b { font-weight: 800; }
.brand .gold { color: var(--gold); }
.btn { display: inline-block; padding: 10px 18px; border-radius: 12px; background: var(--accent); color: #2b1d00; font-weight: 600; text-decoration: none; white-space: nowrap; }
.btn:hover { filter: brightness(1.05); }
main { padding: 22px 16px 40px; }
.crumbs { font-size: 13.5px; color: var(--muted); margin-bottom: 14px; }
.crumbs a { color: var(--muted); }
h1 { font-size: 30px; line-height: 1.25; margin: 0 0 12px; letter-spacing: -.01em; font-weight: 700; }
h2 { font-size: 20px; margin: 0 0 10px; font-weight: 600; }
.lead { font-size: 17px; color: var(--muted); margin: 0 0 14px; }
article { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 24px; }
article p { margin: 0 0 14px; }
.example { background: var(--soft); border-radius: 14px; padding: 14px 16px; margin: 6px 0 14px; }
.example b { display: block; margin-bottom: 4px; color: var(--brand-2); }
.example p { margin: 0; }
.updated { font-size: 13px; color: var(--muted); margin: 0; }
.read-in { font-size: 14px; color: var(--muted); margin: 14px 0; }
.topic { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 20px 22px; margin-top: 16px; }
.topic ul { margin: 0; padding-left: 20px; display: grid; gap: 6px; }
.topic p { margin: 12px 0 0; }
.cta { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; margin-top: 16px; padding: 18px 20px; border-radius: 18px; color: #fff;
  background: linear-gradient(135deg, #0f2a6e 0%, #1b46a8 60%, #2a62d6 100%); }
.cta p { margin: 0; font-weight: 600; flex: 1 1 260px; }
.foot { border-top: 1px solid var(--line); background: var(--card); padding: 20px 0 28px; font-size: 13.5px; color: var(--muted); }
.foot p { margin: 0 0 8px; }
.foot .legal { font-size: 12.5px; }
@media (max-width: 560px) { h1 { font-size: 25px; } article { padding: 18px; } .top .btn { padding: 8px 12px; font-size: 14px; } }