/* ── Landing page ───────────────────────────── */
.ld-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: #0c0c14;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  position: sticky;
  top: 0; z-index: 50;
}
.ld-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: #fff; font-weight: 800; font-size: 1.1rem;
}
.ld-logo-icon {
  width: 36px; height: 36px; border-radius: 8px;
  background: #fbbf24; color: #111;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: .85rem;
}
.ld-nav-links { display: flex; align-items: center; gap: 20px; }
.ld-nav-links a { color: rgba(255,255,255,0.6); text-decoration: none; font-weight: 500; font-size: .92rem; transition: color .15s; }
.ld-nav-links a:hover { color: #fff; }

.ld-btn {
  padding: 8px 18px; border-radius: 8px; font-weight: 700; font-size: .9rem;
  text-decoration: none; cursor: pointer; display: inline-block; border: none; transition: opacity .12s;
}
.ld-btn:hover { opacity: .9; }
.ld-btn-gold {
  background: #fbbf24; color: #111;
}
.ld-btn-outline {
  background: transparent; color: #fbbf24; border: 1px solid rgba(251,191,36,0.4);
}

.ld-hero {
  text-align: center; padding: 80px 20px 60px;
  background: radial-gradient(ellipse at center, rgba(251,191,36,0.06) 0%, transparent 60%);
}
.ld-hero-title {
  font-size: clamp(2rem, 5vw, 3.4rem); font-weight: 800; margin-bottom: 14px; color: #fff;
}
.ld-hero-sub {
  font-size: 1.1rem; color: rgba(255,255,255,0.55); max-width: 560px; margin: 0 auto 28px;
}
.ld-hero-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.ld-section { padding: 56px 20px; max-width: 1200px; margin: 0 auto; }
.ld-section-title {
  text-align: center; font-size: 1.6rem; font-weight: 800; margin-bottom: 28px; color: #fff;
}
.ld-dark { background: #0f0f1a; }

/* Course cards */
.ld-course-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px;
}
.ld-course-card {
  background: #1a1a2e; border: 1px solid rgba(255,255,255,0.08); border-radius: 16px;
  overflow: hidden; display: flex; flex-direction: column; transition: transform .15s, box-shadow .15s;
}
.ld-course-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0,0,0,0.4); }
.ld-course-card.coming-soon { opacity: .5; pointer-events: none; }
.ld-course-card h3 { padding: 16px 18px 0; font-size: 1.15rem; color: #fff; margin: 0; }
.ld-course-desc { padding: 6px 18px; font-size: .9rem; color: rgba(255,255,255,0.55); margin: 0; flex: 1; }
.ld-course-price { padding: 0 18px 16px; font-size: 1.25rem; font-weight: 800; color: #fbbf24; }
.ld-course-price span { font-size: .85rem; font-weight: 400; color: rgba(255,255,255,0.5); }
.ld-course-preview { height: 140px; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.5); font-weight: 700; letter-spacing: 1px; }
.ld-course-card .ld-btn { margin: 0 18px 18px; text-align: center; }
.ld-course-badge {
  position: absolute; top: 12px; left: 12px; background: #fbbf24; color: #111; font-size: .72rem;
  font-weight: 700; padding: 4px 10px; border-radius: 6px;
}
.ld-course-card.featured { position: relative; border-color: rgba(251,191,36,0.35); }

/* Features */
.ld-feature-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px;
}
.ld-feature {
  text-align: center; padding: 24px; background: rgba(255,255,255,0.02); border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.06);
}
.ld-feature-icon { font-size: 2.4rem; margin-bottom: 10px; }
.ld-feature h4 { color: #fff; font-size: 1.05rem; margin-bottom: 6px; }
.ld-feature p { color: rgba(255,255,255,0.55); font-size: .9rem; line-height: 1.55; margin: 0; }

/* CTA */
.ld-cta { text-align: center; background: radial-gradient(ellipse at center, rgba(251,191,36,0.06) 0%, transparent 55%); }

/* Footer */
.ld-footer {
  border-top: 1px solid rgba(255,255,255,0.06); padding: 24px; text-align: center; color: rgba(255,255,255,0.3);
  font-size: .85rem;
}
.ld-footer-top { display: flex; flex-direction: column; align-items: center; gap: 8px; }