:root {
  --bg: #f6f7f5; --card: #ffffff; --ink: #1d2521; --muted: #5b6761; --line: #dfe4e0;
  --accent: #17694f; --accent-ink: #ffffff; --soft: #e5f0ec;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131815; --card: #1b221e; --ink: #e9eeeb; --muted: #a2afa8; --line: #2d3731;
    --accent: #4cc29b; --accent-ink: #0d1512; --soft: #20302a;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink); line-height: 1.85; font-size: 16px;
  font-family: Vazirmatn, "IRANSans", Tahoma, "Segoe UI", system-ui, sans-serif;
}
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
a { color: var(--accent); }
.top { background: var(--card); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-block: 12px; }
.brand { display: flex; align-items: center; gap: 8px; color: var(--ink); font-weight: 700; font-size: 18px; text-decoration: none; }
nav { display: flex; gap: 16px; }
nav a { color: var(--muted); text-decoration: none; }
nav a[aria-current] { color: var(--accent); font-weight: 700; }
.hero { padding: 40px 0 28px; }
h1 { font-size: clamp(24px, 5vw, 34px); line-height: 1.4; margin: 0 0 10px; }
.hero p { color: var(--muted); max-width: 640px; margin: 0 0 20px; }
.search span { display: block; font-size: 14px; font-weight: 700; margin-bottom: 6px; }
.search input {
  width: 100%; max-width: 480px; padding: 12px 14px; font: inherit; color: var(--ink);
  background: var(--card); border: 1px solid var(--line); border-radius: 8px;
}
.search input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.grid { list-style: none; padding: 0; margin: 0 0 48px; display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.grid li { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 18px; display: flex; flex-direction: column; }
.grid li[hidden] { display: none; }
.cat { align-self: flex-start; font-size: 13px; color: var(--accent); background: var(--soft); padding: 1px 10px; border-radius: 999px; }
.grid h2 { margin: 10px 0 2px; font-size: 19px; direction: ltr; text-align: right; }
.grid p { margin: 0 0 14px; color: var(--muted); font-size: 15px; flex: 1; }
.grid a { align-self: flex-start; background: var(--accent); color: var(--accent-ink); font-weight: 700; padding: 8px 14px; border-radius: 8px; text-decoration: none; font-size: 15px; }
.grid a:hover { opacity: .9; }
.empty { color: var(--muted); }
.page { padding-block: 36px 48px; max-width: 720px; }
.page h2 { font-size: 20px; margin: 26px 0 4px; }
.page p { margin: 0 0 12px; }
footer { border-top: 1px solid var(--line); padding: 20px 0; color: var(--muted); font-size: 14px; }