/* home.css — Hero v2 + continue-learning card
   Ai tiếp quản: chỉ trang index.html dùng file này */

.hero-v2 {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(11,95,255,.30), transparent 60%),
    radial-gradient(900px 500px at 10% 110%, rgba(0,196,140,.16), transparent 55%),
    #0F1023;
  color: #fff;
  padding: 92px 0 120px;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.orb {
  position: absolute; border-radius: 50%; filter: blur(70px); opacity: .5;
  animation: float 9s ease-in-out infinite alternate;
}
.orb-1 { width: 420px; height: 420px; background: #0B5FFF; top: -140px; right: -80px; }
.orb-2 { width: 300px; height: 300px; background: #00C48C; bottom: -160px; left: -60px; opacity: .28; animation-delay: 2s; }
.orb-3 { width: 200px; height: 200px; background: #7DD3FC; top: 30%; left: 42%; opacity: .22; animation-delay: 4s; }
@keyframes float {
  from { transform: translateY(-14px) scale(1); }
  to   { transform: translateY(16px) scale(1.06); }
}

.hero-inner { position: relative; z-index: 1; max-width: 860px; }
.hero-kicker {
  display: inline-block; font-size: 12px; letter-spacing: 2.5px; font-weight: 700;
  color: #C4B5FD; border: 1px solid rgba(196,181,253,.35);
  padding: 7px 16px; border-radius: 999px; margin-bottom: 22px;
  background: rgba(11,95,255,.15);
}
.hero-v2 h1 {
  font-size: clamp(38px, 6vw, 64px);
  font-weight: 800; line-height: 1.08; letter-spacing: -.03em;
}
.hero-v2 h1 em {
  font-style: normal;
  background: linear-gradient(90deg, #FBBF24, #F59E0B, #FB923C);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-v2 p {
  margin-top: 20px; font-size: 18px; color: rgba(255,255,255,.72);
  max-width: 560px; line-height: 1.65;
}
.hero-actions { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
.btn-lg { padding: 15px 32px; font-size: 16px; }
.btn-glass {
  background: rgba(255,255,255,.09); color: #fff;
  border: 1.5px solid rgba(255,255,255,.25); backdrop-filter: blur(6px);
}
.btn-glass:hover { background: rgba(255,255,255,.16); }

.hero-stats {
  display: flex; gap: 46px; margin-top: 52px; flex-wrap: wrap;
}
.hero-stats > div { display: flex; flex-direction: column; }
.hero-stats b { font-size: 26px; font-weight: 800; }
.hero-stats span { font-size: 13px; color: rgba(255,255,255,.6); }

/* ===== Continue learning card ===== */
.continue-card {
  display: flex; align-items: center; gap: 22px;
  background: var(--surface); border-radius: 18px; box-shadow: var(--shadow);
  padding: 18px 24px; border: 1px solid var(--border);
}
.continue-thumb {
  width: 150px; height: 84px; object-fit: cover; border-radius: 12px; flex-shrink: 0;
}
.continue-info { flex: 1; min-width: 0; }
.continue-info small:first-child {
  font-size: 11px; letter-spacing: 1.5px; font-weight: 700; color: var(--primary);
}
.continue-info h3 { margin: 3px 0 10px; font-size: 17px; }

/* ===== Card nâng cấp ===== */
.card-cover-img { aspect-ratio: 16/9; overflow: hidden; }
.card-cover-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .3s; }
.course-card:hover .card-cover-img img { transform: scale(1.04); }
.course-card h3 { font-size: 16.5px; }
.section-head { padding-top: 8px; }
.section-head h2 { font-size: 28px; font-weight: 800; letter-spacing: -.01em; }