:root{
  --gold:#d4af37; --gold-2:#f3d98b;
  --ink:#0f1216;  --paper:#f5efe6;
  --text:#111318; --muted:#666a74;
  --radius:18px;  --shadow:0 20px 60px rgba(0,0,0,.25);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:var(--paper)}

.hero{
  position:relative; height:56vh; min-height:380px;
  background:
    linear-gradient(180deg, rgba(0,0,0,.45), rgba(0,0,0,.55)),
    url('./bg-app.png') center/cover no-repeat;
  color:#fff; display:flex; align-items:center; justify-content:center;
}
.hero-overlay{text-align:center; padding:0 16px}
.hero h1{font-size:40px; margin:0 0 10px; font-weight:700; letter-spacing:.2px}
.subtitle{opacity:.9; margin:0 0 18px}
.btn{display:inline-flex; align-items:center; justify-content:center;
  padding:12px 18px; border-radius:var(--radius); font-weight:700; text-decoration:none; cursor:pointer}
.btn-cta{background:linear-gradient(135deg,var(--gold),var(--gold-2)); color:#111; box-shadow:var(--shadow)}
.btn-outline{border:1px solid rgba(0,0,0,.15); color:var(--text); background:#fff}

.container{max-width:1040px; margin:0 auto; padding:28px 16px 48px}

.intro-box{
  background:rgba(255,255,255,.8);
  border:1px solid rgba(0,0,0,.06);
  border-radius:var(--radius);
  padding:16px 18px;
  box-shadow:0 10px 30px rgba(0,0,0,.08);
}

.courses{display:grid; grid-template-columns:1fr; gap:16px; margin:28px 0}
@media(min-width:860px){ .courses{grid-template-columns:1fr 1fr} }

.course-card{
  background:#fff; border:1px solid rgba(0,0,0,.06);
  border-radius:var(--radius); padding:16px; box-shadow:0 10px 30px rgba(0,0,0,.08);
  display:flex; flex-direction:column; gap:10px
}
.course-head{display:flex; align-items:flex-start; justify-content:space-between; gap:10px}
.course-title{font-weight:700; margin:0; font-size:18px}
.course-price{color:#7a5d12; font-weight:800}
.course-desc{color:var(--muted); margin:0}
.course-actions{display:flex; gap:10px; margin-top:auto}
.btn-buy{flex:1 1 auto; background:linear-gradient(135deg,var(--gold),var(--gold-2)); color:#111; box-shadow:var(--shadow)}
.btn-more{flex:0 0 auto}

.faq, .author, .contact{margin:40px 0}
.faq details{background:#fff; border:1px solid rgba(0,0,0,.06); border-radius:12px; padding:12px 14px; margin:8px 0}
.author-wrap{display:flex; gap:16px; align-items:center; background:#fff; border:1px solid rgba(0,0,0,.06); border-radius:12px; padding:12px 14px}
.author-photo{width:88px; height:88px; border-radius:50%; background:url('./photo_2025-09-09_05-43-08.jpg') center 30%/cover no-repeat; box-shadow:inset 0 0 0 2px rgba(0,0,0,.15)}
.footer{text-align:center; color:var(--muted); padding:18px}