:root {
  --paper: #FBF6EC; --card: #FFFFFF; --sunk: #F3ECDD; --ink: #1A1F2E; --soft: #5D6475; --line: #E6DCC8;
  --lapis: #1C3F94; --lapis-deep: #13296A; --turq: #13958F; --saffron: #E9A100;
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #0D1322; --card: #172036; --sunk: #111A2D; --ink: #F2EEE6; --soft: #A3AABB; --line: #26304A;
          --lapis: #5C86F0; --lapis-deep: #2A4AA8; --turq: #3CC7BE; --saffron: #F5B83A; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.6 "Nunito", ui-rounded, system-ui, sans-serif; }
a { color: var(--lapis); text-underline-offset: 3px; }
.fa { font-family: "Vazirmatn", sans-serif; direction: rtl; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header.bar { border-bottom: 1px solid var(--line); }
header.bar .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 900; font-size: 20px; }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
nav a { margin-left: 18px; font-weight: 700; text-decoration: none; color: var(--soft); font-size: 15px; }
nav a:hover, nav a[aria-current] { color: var(--ink); }

/* Hero: a lapis tile panel with the Isfahan star pattern */
.hero { position: relative; overflow: hidden; margin: 28px 0 8px; border-radius: 28px; padding: 56px 28px 48px; color: #fff;
  background: linear-gradient(160deg, var(--lapis), var(--lapis-deep)); text-align: center; }
.hero::before { content: ""; position: absolute; inset: 0; opacity: .13;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 60 60'%3E%3Cpath d='M30 4l7 19 19 7-19 7-7 19-7-19-19-7 19-7z' fill='none' stroke='%23fff' stroke-width='1.6'/%3E%3C/svg%3E");
  background-size: 60px 60px; animation: drift 40s linear infinite; }
@keyframes drift { to { background-position: 60px 60px; } }
@media (prefers-reduced-motion: reduce) { .hero::before { animation: none; } }
.hero > * { position: relative; }
.hero .word { font-family: "Vazirmatn", sans-serif; font-weight: 900; font-size: clamp(72px, 18vw, 120px); line-height: 1; color: var(--saffron); margin: 0; }
.hero h1 { font-size: clamp(30px, 7vw, 44px); line-height: 1.1; margin: 18px 0 10px; font-weight: 900; }
.hero p { max-width: 520px; margin: 0 auto; color: rgba(255,255,255,.86); }
.pill { display: inline-block; margin-top: 22px; padding: 12px 22px; border-radius: 999px; background: var(--saffron); color: #1A1F2E; font-weight: 900; text-decoration: none; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin: 26px 0; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 20px; }
.card h3 { margin: 6px 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--soft); font-size: 15px; }
.dot { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font-weight: 900; color: #fff; }

main.doc { padding: 34px 0 10px; }
main.doc h1 { font-size: clamp(30px, 6vw, 40px); line-height: 1.15; margin: 0 0 6px; }
main.doc .meta { color: var(--soft); margin: 0 0 26px; font-size: 15px; }
main.doc h2 { font-size: 21px; margin: 34px 0 8px; }
main.doc li { margin: 6px 0; }
.note { background: var(--sunk); border-radius: 16px; padding: 16px 18px; margin: 18px 0; }
details { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 14px 18px; margin: 10px 0; }
summary { font-weight: 800; cursor: pointer; }
details p, details ol, details ul { color: var(--soft); margin: 10px 0 4px; }
footer { border-top: 1px solid var(--line); margin-top: 48px; padding: 22px 0 40px; color: var(--soft); font-size: 14px; }
footer a { color: var(--soft); margin-right: 14px; }