/* محتوای آموزشی احمد ترکمانی — سبک سایت */
:root{
  --green-900:#123f26; --green-800:#14532d; --green-700:#1a6b4a; --green-600:#22855c;
  --gold:#c9a227; --gold-soft:#f5ecd2; --cream:#faf8f2; --ink:#1f2937; --muted:#5b6b60;
  --card:#ffffff; --line:#e7e2d5; --shadow:0 10px 30px rgba(18,63,38,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; font-family:Sahel,Tahoma,'Segoe UI',sans-serif; background:var(--cream);
  color:var(--ink); line-height:1.9; font-size:16.5px;
}
a{color:var(--green-700); text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1080px; margin:0 auto; padding:0 20px}

/* سربرگ */
header.site{
  position:sticky; top:0; z-index:10; background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line); backdrop-filter:blur(6px);
}
header.site .wrap{display:flex; align-items:center; justify-content:space-between; gap:16px; min-height:64px}
.brand{font-weight:800; font-size:19px; color:var(--green-800); white-space:nowrap}
.brand small{display:block; font-size:12.5px; font-weight:400; color:var(--muted); line-height:1.4}
nav.main{display:flex; gap:20px; font-size:15px; font-weight:600}
nav.main a{color:var(--ink)}
nav.main a:hover{color:var(--green-700); text-decoration:none}

/* هیرو */
.hero{
  background:
    radial-gradient(circle at 85% 20%, rgba(201,162,39,.28) 0 2px, transparent 3px) 0 0/34px 34px,
    linear-gradient(135deg, var(--green-900) 0%, var(--green-800) 55%, var(--green-600) 100%);
  color:#fff; padding:64px 0 56px; border-bottom:6px solid var(--gold);
}
.hero h1{margin:0 0 12px; font-size:42px; line-height:1.5}
.hero p{margin:0 0 26px; font-size:18px; opacity:.92; max-width:720px}
.cta-row{display:flex; gap:12px; flex-wrap:wrap}
.btn{
  display:inline-block; padding:12px 26px; border-radius:999px; font-weight:700; font-size:16px;
  border:2px solid transparent; cursor:pointer; text-align:center;
}
.btn:hover{text-decoration:none; transform:translateY(-1px)}
.btn-gold{background:var(--gold); color:#231f08}
.btn-outline{border-color:#fff; color:#fff}
.btn-green{background:var(--green-700); color:#fff}
.btn-dark{background:#222; color:#fff}
.btn-lg{padding:16px 40px; font-size:18px}

/* بخش‌ها */
section.block{padding:48px 0 8px}
section.block h2{font-size:26px; margin:0 0 6px; color:var(--green-800)}
section.block h2::after{content:""; display:block; width:64px; height:4px; background:var(--gold); border-radius:2px; margin-top:10px}
.lead{color:var(--muted); margin:0 0 28px; font-size:17px}

/* کارت‌ها */
.grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:24px; padding-bottom:16px}
.card{
  background:var(--card); border:1px solid var(--line); border-radius:22px; padding:26px 24px;
  box-shadow:var(--shadow); display:flex; flex-direction:column; gap:10px;
  transition:transform .18s ease, box-shadow .18s ease;
}
.card:hover{transform:translateY(-4px); box-shadow:0 18px 40px rgba(18,63,38,.16)}
.icon{
  width:58px; height:58px; border-radius:18px; display:flex; align-items:center; justify-content:center;
  font-size:27px; margin-bottom:4px;
}
.card h3{margin:0; font-size:20px; line-height:1.6}
.card h3 a{color:var(--ink)}
.card p{margin:0; color:var(--muted); font-size:15px; flex:1}
.meta{display:flex; flex-wrap:wrap; gap:8px; margin-top:6px}
.chip{background:var(--gold-soft); color:#6b5a10; border-radius:999px; padding:3px 12px; font-size:13px; font-weight:600}
.card .btn{margin-top:10px}

/* صفحه محتوا */
.crumb{font-size:14px; color:var(--muted); margin:28px 0 4px}
.crumb a{color:var(--muted)}
.item-head{padding:8px 0 24px}
.item-head h1{font-size:34px; line-height:1.6; margin:0 0 10px; color:var(--green-800)}
.item-head .lead{font-size:18px}
.facts{
  background:#fff; border:1px solid var(--line); border-radius:20px; padding:22px 26px;
  display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:14px 26px; margin:0 0 30px;
  box-shadow:var(--shadow);
}
.facts div span{display:block; font-size:13px; color:var(--muted)}
.facts div b{font-size:17px}
.download-box{
  background:linear-gradient(135deg, var(--green-800), var(--green-600)); color:#fff;
  border-radius:24px; padding:32px 28px; text-align:center; margin:0 0 36px;
}
.download-box p{opacity:.92; margin:0 0 20px}
.related h2{font-size:22px; color:var(--green-800)}

/* دانلود تک‌درس */
.lessons{background:#fff; border:1px solid var(--line); border-radius:24px; padding:28px; margin:0 0 36px; box-shadow:var(--shadow)}
.lessons h2{font-size:22px; color:var(--green-800); margin:0 0 4px}
.lessons ul{list-style:none; margin:0; padding:0}
.lessons li{display:flex; align-items:center; justify-content:space-between; gap:12px; padding:12px 4px; border-bottom:1px solid var(--line)}
.lessons li:last-child{border-bottom:none}
.lessons li .btn{padding:8px 20px; font-size:14.5px; flex-shrink:0}

/* درباره سازنده */
.about{
  background:#fff; border:1px solid var(--line); border-radius:24px; padding:30px 28px;
  box-shadow:var(--shadow); display:flex; flex-wrap:wrap; gap:24px; align-items:center; justify-content:space-between;
}
.about h3{margin:0 0 6px; font-size:22px; color:var(--green-800)}
.about p{margin:0; color:var(--muted); max-width:560px}
.contact-row{display:flex; gap:10px; flex-wrap:wrap}

/* پاصفحه */
footer.site{background:var(--green-900); color:#cfe3d6; margin-top:56px; padding:34px 0; font-size:14.5px; text-align:center}
footer.site a{color:#fff}

@media (max-width:640px){
  .hero{padding:44px 0 40px}
  .hero h1{font-size:30px}
  .hero p{font-size:16.5px}
  .item-head h1{font-size:26px}
  nav.main{gap:12px; font-size:14px}
  .brand small{display:none}
}