/* ═══════════════════════════════════════════════════════════════
   Vibe4VN — Professional v6
   Inspired by high-converting Vietnamese course/product landing pages
   Design direction: Dark luxury · High urgency · Trust-first
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:ital,wght@0,400;0,500;0,600;0,700;0,800;0,900;1,400&family=Sora:wght@700;800;900&display=swap');

/* ── Reset tokens ── */
:root {
  --bg:        #06060a;
  --bg-2:      #0c0c14;
  --bg-3:      #111118;
  --bg-4:      #18181f;
  --bg-5:      #1f1f2b;
  --bg-glass:  rgba(10,10,16,0.80);
  --orange:      #E8192C;
  --orange-dk:   #C8101F;
  --orange-lt: #ff7a44;
  --orange-gw: rgba(255,92,26,0.16);
  --gold:      #F5A623;
  --gold-gw:   rgba(245,166,35,0.15);
  --green:     #00D68F;
  --cyan:      #00C8FF;
  --red:       #FF3B3B;
  --text-1:    #FFFFFF;
  --text-2:    #D4D4E8;
  --text-3:    #9898B8;
  --text-4:    #5A5A72;
  --border:    rgba(255,255,255,0.055);
  --border-2:  rgba(255,255,255,0.10);
  --border-o:  rgba(255,92,26,0.30);
  --r-sm:  8px;
  --r-md:  14px;
  --r-lg:  20px;
  --r-xl:  28px;
  --r-2xl: 36px;
  --ff:    'Be Vietnam Pro', system-ui, sans-serif;
  --ff-d:  'Sora', 'Be Vietnam Pro', system-ui, sans-serif;
  --tf:    0.18s cubic-bezier(0.4,0,0.2,1);
  --tm:    0.28s cubic-bezier(0.4,0,0.2,1);
}

/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; }
body {
  font-family: var(--ff);
  background: var(--bg);
  color: var(--text-2);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; }
::selection { background: rgba(255,92,26,0.35); color: #fff; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--bg-5); border-radius: 10px; }

/* ═══════════════════════════════════════
   HEADER
═══════════════════════════════════════ */
.main-header {
  position: fixed !important;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: 60px !important;
  display: flex !important;
  align-items: center !important;
  background: rgba(6,6,10,0.88) !important;
  backdrop-filter: blur(20px) saturate(1.8) !important;
  -webkit-backdrop-filter: blur(20px) saturate(1.8) !important;
  border-bottom: 1px solid rgba(255,255,255,0.05) !important;
  transition: all var(--tm) !important;
}
.main-header.scrolled {
  background: rgba(6,6,10,0.97) !important;
  box-shadow: 0 2px 24px rgba(0,0,0,0.5) !important;
}
.header-inner {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  height: 100% !important;
  width: 100% !important;
  padding: 0 24px !important;
  max-width: 1200px !important;
  margin: 0 auto !important;
}
.logo { display: flex !important; align-items: center !important; gap: 10px !important; }
.logo-name {
  font-family: var(--ff-d) !important;
  font-size: 18px !important;
  font-weight: 800 !important;
  letter-spacing: -0.5px !important;
  background: linear-gradient(120deg, #E8192C, #FF8C5C) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
}
.logo-tag {
  font-size: 9px !important;
  letter-spacing: 2px !important;
  text-transform: uppercase !important;
  color: var(--text-4) !important;
  font-weight: 600 !important;
}
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  font-size: 13px !important;
  font-weight: 500 !important;
  color: var(--text-3) !important;
  padding: 7px 12px !important;
  border-radius: var(--r-sm) !important;
  transition: all var(--tf) !important;
}
.main-nav a:hover { color: var(--text-1) !important; background: rgba(255,255,255,0.06) !important; }
.nav-cta {
  background: var(--orange) !important;
  color: #fff !important;
  padding: 8px 18px !important;
  border-radius: var(--r-sm) !important;
  font-weight: 700 !important;
  font-size: 13px !important;
  box-shadow: 0 2px 14px rgba(255,92,26,0.35) !important;
  transition: all var(--tf) !important;
}
.nav-cta:hover { transform: translateY(-1px) !important; box-shadow: 0 4px 22px rgba(255,92,26,0.5) !important; background: var(--orange-lt) !important; color: #fff !important; }
.nav-course-tab {
  background: rgba(245,166,35,0.12) !important;
  color: var(--gold) !important;
  border: 1px solid rgba(245,166,35,0.25) !important;
  font-weight: 700 !important;
}
.nav-course-tab:hover { background: rgba(245,166,35,0.2) !important; color: var(--gold) !important; }

/* ═══════════════════════════════════════
   TICKER
═══════════════════════════════════════ */
.event-ticker-bar {
  background: linear-gradient(90deg, #c03800, var(--orange), #c03800) !important;
  height: 36px !important;
  position: relative;
  overflow: hidden;
  z-index: 999;
  margin-top: 60px;
}
.event-ticker-bar::before {
  content: '🔥';
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  font-size: 14px;
}
.ticker-item { font-size: 12px !important; font-weight: 600 !important; letter-spacing: 0.2px; }

/* ═══════════════════════════════════════
   HERO SECTION — Premium redesign
═══════════════════════════════════════ */
.hero-section {
  padding: 0 !important;
  min-height: 100vh !important;
  display: flex !important;
  align-items: center !important;
  position: relative !important;
  overflow: hidden !important;
  background: var(--bg) !important;
}

/* Layered background atmosphere */
.hero-bg {
  position: absolute !important;
  inset: 0 !important;
  overflow: hidden !important;
}
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 10% 20%, rgba(255,92,26,0.09) 0%, transparent 55%),
    radial-gradient(ellipse 55% 45% at 90% 70%, rgba(124,106,255,0.07) 0%, transparent 55%),
    radial-gradient(ellipse 45% 35% at 50% 90%, rgba(0,200,255,0.04) 0%, transparent 50%);
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,92,26,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,92,26,0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black, transparent);
}
.orb { display: none !important; }

.hero-inner {
  display: grid !important;
  grid-template-columns: 1fr !important;
  max-width: 800px !important;
  margin: 0 auto !important;
  text-align: center !important;
  padding: 120px 24px 80px !important;
  position: relative;
  z-index: 2;
}

/* Live badge */
.hero-badge {
  display: inline-flex !important;
  align-items: center !important;
  gap: 8px !important;
  padding: 7px 18px !important;
  background: rgba(0,214,143,0.10) !important;
  border: 1px solid rgba(0,214,143,0.25) !important;
  border-radius: 100px !important;
  font-size: 12px !important;
  font-weight: 700 !important;
  color: #00D68F !important;
  margin-bottom: 28px !important;
  letter-spacing: 0.3px !important;
}
.badge-dot {
  width: 7px !important;
  height: 7px !important;
  background: #00D68F !important;
  border-radius: 50% !important;
  box-shadow: 0 0 8px rgba(0,214,143,0.8) !important;
  animation: livePulse 2s ease-in-out infinite !important;
}
@keyframes livePulse {
  0%,100% { opacity:1; transform:scale(1); box-shadow:0 0 8px rgba(0,214,143,0.8); }
  50% { opacity:0.6; transform:scale(1.4); box-shadow:0 0 14px rgba(0,214,143,0.5); }
}

/* Hero heading */
.hero-title {
  font-family: var(--ff-d) !important;
  font-size: clamp(34px, 6vw, 68px) !important;
  font-weight: 900 !important;
  letter-spacing: -2.5px !important;
  line-height: 1.06 !important;
  color: var(--text-1) !important;
  margin-bottom: 22px !important;
}
.hero-accent {
  background: linear-gradient(120deg, #E8192C 0%, #FF8C5C 45%, #FFB899 100%) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
  display: inline-block !important;
}

/* Slogan quote */
.hero-slogan {
  font-size: 15px !important;
  font-style: italic !important;
  font-weight: 500 !important;
  color: var(--text-3) !important;
  border-left: none !important;
  background: none !important;
  border-radius: 0 !important;
  padding: 0 0 20px !important;
  margin-bottom: 4px !important;
  position: relative;
  line-height: 1.7 !important;
}

/* Description */
.hero-desc {
  font-size: 15px !important;
  line-height: 1.85 !important;
  color: var(--text-2) !important;
  margin-bottom: 40px !important;
  max-width: 580px !important;
  margin-left: auto !important;
  margin-right: auto !important;
}

/* CTA buttons */
.hero-actions {
  display: flex !important;
  gap: 14px !important;
  justify-content: center !important;
  flex-wrap: wrap !important;
  margin-bottom: 48px !important;
}
.btn-primary,
.hero-actions .btn:first-child {
  display: inline-flex !important;
  align-items: center !important;
  gap: 8px !important;
  background: linear-gradient(135deg, #E8192C, #C8101F) !important;
  color: #fff !important;
  padding: 15px 34px !important;
  border-radius: var(--r-md) !important;
  font-weight: 800 !important;
  font-family: var(--ff-d) !important;
  font-size: 15px !important;
  letter-spacing: -0.3px !important;
  box-shadow: 0 4px 24px rgba(255,92,26,0.4), inset 0 1px 0 rgba(255,255,255,0.15) !important;
  transition: all var(--tf) !important;
  border: none !important;
  cursor: pointer !important;
  position: relative !important;
  overflow: hidden !important;
}
.btn-primary::after,
.hero-actions .btn:first-child::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.12), transparent);
  opacity: 0;
  transition: opacity var(--tf);
}
.btn-primary:hover::after,
.hero-actions .btn:first-child:hover::after { opacity: 1; }
.btn-primary:hover,
.hero-actions .btn:first-child:hover {
  transform: translateY(-3px) !important;
  box-shadow: 0 10px 36px rgba(255,92,26,0.55) !important;
}
.btn-ghost,
.hero-actions .btn:nth-child(2),
.btn-secondary {
  display: inline-flex !important;
  align-items: center !important;
  gap: 8px !important;
  background: transparent !important;
  color: var(--text-2) !important;
  padding: 14px 28px !important;
  border-radius: var(--r-md) !important;
  font-weight: 600 !important;
  font-size: 14px !important;
  border: 1px solid var(--border-2) !important;
  transition: all var(--tf) !important;
}
.btn-ghost:hover,
.hero-actions .btn:nth-child(2):hover,
.btn-secondary:hover {
  border-color: var(--orange) !important;
  color: var(--text-1) !important;
  background: rgba(255,92,26,0.06) !important;
  transform: translateY(-2px) !important;
}

/* Hero stats strip */
.hero-stats {
  display: flex !important;
  align-items: center !important;
  gap: 0 !important;
  justify-content: center !important;
  padding: 24px 32px !important;
  background: rgba(255,255,255,0.03) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--r-lg) !important;
  backdrop-filter: blur(12px) !important;
}
.stat { flex: 1; text-align: center; padding: 0 16px; }
.stat strong {
  display: block !important;
  font-family: var(--ff-d) !important;
  font-size: 26px !important;
  font-weight: 800 !important;
  color: var(--text-1) !important;
  letter-spacing: -0.5px !important;
}
.stat span {
  font-size: 11px !important;
  color: var(--text-3) !important;
  text-transform: uppercase !important;
  letter-spacing: 0.8px !important;
  font-weight: 600 !important;
  margin-top: 2px !important;
  display: block !important;
}
.stat-line {
  width: 1px !important;
  height: 36px !important;
  background: var(--border-2) !important;
  flex-shrink: 0 !important;
}

/* ═══════════════════════════════════════
   TRUST BAR
═══════════════════════════════════════ */
.trust-bar {
  background: var(--bg-2) !important;
  border-top: 1px solid var(--border) !important;
  border-bottom: 1px solid var(--border) !important;
  padding: 14px 0 !important;
}
.trust-row {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 0 !important;
  flex-wrap: wrap !important;
}
.trust-item {
  display: flex !important;
  align-items: center !important;
  gap: 8px !important;
  font-size: 12.5px !important;
  font-weight: 600 !important;
  color: var(--text-3) !important;
  padding: 6px 20px !important;
}
.trust-sep {
  width: 1px !important;
  height: 18px !important;
  background: var(--border-2) !important;
}

/* ═══════════════════════════════════════
   SECTIONS — General
═══════════════════════════════════════ */
.section {
  padding: 88px 0 !important;
  position: relative !important;
}
.section::before {
  content: '' !important;
  position: absolute !important;
  top: 0; left: 0; right: 0 !important;
  height: 1px !important;
  background: linear-gradient(90deg, transparent, var(--border-2), transparent) !important;
}
.container {
  max-width: 1200px !important;
  margin: 0 auto !important;
  padding: 0 24px !important;
}

/* Section labels & headings */
.section-head { margin-bottom: 52px !important; }
.section-label {
  display: inline-flex !important;
  align-items: center !important;
  gap: 8px !important;
  font-size: 10.5px !important;
  font-weight: 800 !important;
  letter-spacing: 3.5px !important;
  text-transform: uppercase !important;
  color: var(--orange) !important;
  margin-bottom: 14px !important;
}
.section-label::before {
  content: '' !important;
  width: 18px !important;
  height: 2px !important;
  background: var(--orange) !important;
  border-radius: 2px !important;
  display: inline-block !important;
}
.section-title {
  font-family: var(--ff-d) !important;
  font-size: clamp(26px, 4vw, 42px) !important;
  font-weight: 800 !important;
  letter-spacing: -1.5px !important;
  line-height: 1.1 !important;
  color: var(--text-1) !important;
  margin-bottom: 14px !important;
}
.section-desc {
  font-size: 14.5px !important;
  color: var(--text-2) !important;
  max-width: 520px !important;
  line-height: 1.75 !important;
}

/* ═══════════════════════════════════════
   FREE SECTION
═══════════════════════════════════════ */
.free-section {
  background: var(--bg-2) !important;
}
.free-card {
  background: var(--bg-3) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--r-lg) !important;
  overflow: hidden !important;
  transition: all var(--tm) !important;
}
.free-card:hover {
  transform: translateY(-5px) !important;
  border-color: rgba(0,214,143,0.30) !important;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5), 0 0 20px rgba(0,214,143,0.08) !important;
}

/* ═══════════════════════════════════════
   PLATFORMS SECTION
═══════════════════════════════════════ */
.platforms-section { background: var(--bg-2) !important; }
.platform-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)) !important;
  gap: 20px !important;
}
.platform-card {
  background: var(--bg-3) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--r-lg) !important;
  padding: 28px !important;
  text-align: left !important;
  transition: all var(--tm) !important;
  position: relative !important;
  overflow: hidden !important;
}
.platform-card::before {
  content: '' !important;
  position: absolute !important;
  top: -1px; left: 0; right: 0 !important;
  height: 2px !important;
  border-radius: 2px 2px 0 0 !important;
  opacity: 0 !important;
  transition: opacity var(--tm) !important;
}
.platform-web::before { background: linear-gradient(90deg, var(--cyan), transparent) !important; }
.platform-exe::before { background: linear-gradient(90deg, var(--orange), transparent) !important; }
.platform-apk::before { background: linear-gradient(90deg, var(--green), transparent) !important; }
.platform-card:hover { transform: translateY(-4px) !important; border-color: var(--border-2) !important; box-shadow: 0 12px 40px rgba(0,0,0,0.4) !important; }
.platform-card:hover::before { opacity: 1 !important; }
.platform-icon {
  width: 52px; height: 52px;
  border-radius: var(--r-sm);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
  color: var(--text-2);
}
.platform-badge {
  font-size: 10px; font-weight: 700; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--orange);
  margin-bottom: 8px;
}
.platform-name {
  font-family: var(--ff-d) !important;
  font-size: 17px !important;
  font-weight: 700 !important;
  color: var(--text-1) !important;
  margin-bottom: 10px !important;
  letter-spacing: -0.3px !important;
}
.platform-desc { font-size: 13px !important; color: var(--text-3) !important; line-height: 1.75 !important; margin-bottom: 14px !important; }
.platform-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.platform-tags span {
  font-size: 11px; font-weight: 600;
  padding: 3px 10px; border-radius: 100px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text-3);
}
.platform-note {
  margin-top: 28px;
  display: flex; align-items: center; gap: 8px;
  font-size: 12.5px; color: var(--text-3);
  background: rgba(255,92,26,0.05);
  border: 1px solid rgba(255,92,26,0.12);
  padding: 12px 18px;
  border-radius: var(--r-sm);
}

/* ═══════════════════════════════════════
   PRODUCTS
═══════════════════════════════════════ */
.products-section { background: var(--bg) !important; }
.product-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr)) !important;
  gap: 22px !important;
}
.product-card {
  background: var(--bg-2) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--r-xl) !important;
  overflow: hidden !important;
  transition: all var(--tm) !important;
  position: relative !important;
}
.product-card::before {
  content: '' !important;
  position: absolute !important;
  inset: 0 !important;
  background: linear-gradient(160deg, rgba(255,92,26,0.05) 0%, transparent 40%) !important;
  opacity: 0 !important;
  transition: opacity var(--tm) !important;
  z-index: 0 !important;
  pointer-events: none !important;
}
.product-card:hover {
  transform: translateY(-7px) !important;
  border-color: var(--border-o) !important;
  box-shadow: 0 16px 48px rgba(0,0,0,0.55), 0 0 40px rgba(255,92,26,0.07) !important;
}
.product-card:hover::before { opacity: 1 !important; }

/* ═══════════════════════════════════════
   WHY US
═══════════════════════════════════════ */
.why-section { background: var(--bg-2) !important; }
.why-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)) !important;
  gap: 18px !important;
}
.why-card {
  background: var(--bg-3) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--r-lg) !important;
  padding: 28px !important;
  transition: all var(--tm) !important;
  position: relative !important;
  overflow: hidden !important;
}
.why-card::after {
  content: '' !important;
  position: absolute !important;
  top: -1px; left: 0; right: 0 !important;
  height: 2px !important;
  background: linear-gradient(90deg, var(--orange), transparent) !important;
  transform: scaleX(0) !important;
  transform-origin: left !important;
  transition: transform var(--tm) !important;
}
.why-card:hover {
  border-color: var(--border-2) !important;
  transform: translateY(-3px) !important;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4) !important;
}
.why-card:hover::after { transform: scaleX(1) !important; }
.why-icon {
  width: 48px; height: 48px;
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.feature-title {
  font-family: var(--ff-d) !important;
  font-size: 15px !important;
  font-weight: 700 !important;
  color: var(--text-1) !important;
  margin-bottom: 8px !important;
  letter-spacing: -0.2px !important;
}

/* ═══════════════════════════════════════
   REVIEWS
═══════════════════════════════════════ */
.reviews-section { background: var(--bg) !important; }
.reviews-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)) !important;
  gap: 18px !important;
}

/* ═══════════════════════════════════════
   FAQ
═══════════════════════════════════════ */
.faq-section { background: var(--bg-2) !important; }
.faq-list { max-width: 760px !important; margin: 0 auto !important; }
.faq-item {
  background: var(--bg-3) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--r-md) !important;
  margin-bottom: 10px !important;
  overflow: hidden !important;
  transition: all var(--tf) !important;
}
.faq-item:hover { border-color: var(--border-2) !important; }
.faq-item[open] {
  border-color: var(--border-o) !important;
  box-shadow: 0 4px 20px rgba(0,0,0,0.25) !important;
}
.faq-q {
  padding: 18px 22px !important;
  font-size: 14px !important;
  font-weight: 700 !important;
  font-family: var(--ff-d) !important;
  color: var(--text-1) !important;
  cursor: pointer !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  list-style: none !important;
  letter-spacing: -0.2px !important;
}
.faq-q::-webkit-details-marker { display: none !important; }
.faq-q::after {
  content: '+' !important;
  font-size: 20px !important;
  color: var(--text-4) !important;
  transition: all var(--tf) !important;
  flex-shrink: 0 !important;
  margin-left: 16px !important;
  line-height: 1 !important;
}
.faq-item[open] .faq-q::after { content: '−' !important; color: var(--orange) !important; }
.faq-a {
  padding: 0 22px 18px !important;
  font-size: 13.5px !important;
  color: var(--text-2) !important;
  line-height: 1.8 !important;
}

/* ═══════════════════════════════════════
   CONTACT / SOCIAL
═══════════════════════════════════════ */
.contact-section { background: var(--bg) !important; }
.social-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)) !important;
  gap: 14px !important;
  max-width: 800px !important;
  margin: 0 auto !important;
}
.social-card {
  display: flex !important;
  align-items: center !important;
  gap: 14px !important;
  padding: 18px 22px !important;
  border-radius: var(--r-lg) !important;
  border: 1px solid var(--border) !important;
  background: var(--bg-2) !important;
  transition: all var(--tm) !important;
}
.social-card:hover { transform: translateY(-3px) !important; box-shadow: 0 8px 28px rgba(0,0,0,0.4) !important; }
.social-card--fb:hover { border-color: rgba(232,25,44,0.35) !important; background: rgba(232,25,44,0.05) !important; }
.social-card--tt:hover { border-color: rgba(255,255,255,0.15) !important; background: rgba(255,255,255,0.03) !important; }
.social-card--yt:hover { border-color: rgba(255,0,0,0.30) !important; background: rgba(255,0,0,0.05) !important; }
.social-icon-wrap {
  width: 46px; height: 46px;
  border-radius: var(--r-sm);
  background: rgba(255,255,255,0.06);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.social-name { font-family: var(--ff-d) !important; font-size: 15px !important; font-weight: 700 !important; color: var(--text-1) !important; display: block !important; }
.social-sub { font-size: 12px !important; color: var(--text-3) !important; margin-top: 2px !important; display: block !important; }
.social-arrow { color: var(--text-4) !important; margin-left: auto !important; flex-shrink: 0 !important; }

/* ═══════════════════════════════════════
   KHÓA HỌC SECTION — Upgraded
═══════════════════════════════════════ */
.vc-section {
  background: var(--bg-2) !important;
  border-top: 1px solid var(--border) !important;
  padding: 88px 0 !important;
}
.vc-section-header { margin-bottom: 52px !important; text-align: center !important; }
.vc-badge {
  display: inline-flex !important;
  align-items: center !important;
  gap: 8px !important;
  padding: 7px 18px !important;
  background: rgba(245,166,35,0.10) !important;
  border: 1px solid rgba(245,166,35,0.28) !important;
  border-radius: 100px !important;
  font-size: 11px !important;
  font-weight: 800 !important;
  letter-spacing: 2px !important;
  text-transform: uppercase !important;
  color: var(--gold) !important;
  margin-bottom: 24px !important;
}
.vc-dot {
  width: 7px !important; height: 7px !important;
  border-radius: 50% !important;
  background: var(--gold) !important;
  box-shadow: 0 0 8px rgba(245,166,35,0.7) !important;
  animation: livePulse 2s ease-in-out infinite !important;
  display: inline-block !important;
}
.vc-title {
  font-family: var(--ff-d) !important;
  font-size: clamp(32px,5vw,52px) !important;
  font-weight: 900 !important;
  letter-spacing: -2px !important;
  color: var(--text-1) !important;
  line-height: 1.1 !important;
  margin-bottom: 6px !important;
}
.vc-accent {
  background: linear-gradient(120deg, #E8192C, #F5A623) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
}
.vc-subtitle {
  font-family: var(--ff-d) !important;
  font-size: clamp(18px,3vw,28px) !important;
  font-weight: 700 !important;
  color: var(--text-2) !important;
  margin-bottom: 18px !important;
  letter-spacing: -0.5px !important;
}
.vc-desc {
  font-size: 14.5px !important;
  color: var(--text-3) !important;
  max-width: 620px !important;
  margin: 0 auto 32px !important;
  line-height: 1.8 !important;
}
.vc-stats {
  display: flex !important;
  justify-content: center !important;
  gap: 0 !important;
  margin-bottom: 36px !important;
  padding: 22px 36px !important;
  background: rgba(255,255,255,0.03) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--r-lg) !important;
  max-width: 500px !important;
  margin-left: auto !important;
  margin-right: auto !important;
}
.vc-stat { flex: 1; text-align: center; padding: 0 16px; }
.vc-stat-num {
  font-family: var(--ff-d) !important;
  font-size: 28px !important;
  font-weight: 900 !important;
  color: var(--orange) !important;
  display: block !important;
  letter-spacing: -1px !important;
}
.vc-stat-label {
  font-size: 11px !important;
  color: var(--text-3) !important;
  text-transform: uppercase !important;
  letter-spacing: 0.8px !important;
  font-weight: 600 !important;
  margin-top: 3px !important;
  display: block !important;
}
.vc-btn-main {
  display: inline-flex !important;
  align-items: center !important;
  gap: 10px !important;
  background: linear-gradient(135deg, var(--orange), var(--orange-dk)) !important;
  color: #fff !important;
  padding: 16px 40px !important;
  border-radius: var(--r-md) !important;
  font-family: var(--ff-d) !important;
  font-size: 15px !important;
  font-weight: 800 !important;
  letter-spacing: -0.3px !important;
  box-shadow: 0 4px 28px rgba(255,92,26,0.45), inset 0 1px 0 rgba(255,255,255,0.15) !important;
  transition: all var(--tf) !important;
}
.vc-btn-main:hover {
  transform: translateY(-3px) !important;
  box-shadow: 0 10px 40px rgba(255,92,26,0.6) !important;
}
.vc-levels {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)) !important;
  gap: 14px !important;
  margin-bottom: 40px !important;
}
.vc-level-card {
  background: var(--bg-3) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--r-lg) !important;
  padding: 22px !important;
  text-align: center !important;
  transition: all var(--tm) !important;
}
.vc-level-card:hover { transform: translateY(-3px) !important; border-color: var(--border-2) !important; }
.vc-level-highlight {
  background: linear-gradient(160deg, rgba(255,92,26,0.08), var(--bg-3)) !important;
  border-color: var(--border-o) !important;
}
.vc-level-num {
  font-family: var(--ff-d) !important;
  font-size: 28px !important;
  font-weight: 900 !important;
  color: var(--orange) !important;
  display: block !important;
  margin-bottom: 6px !important;
  opacity: 0.7 !important;
}
.vc-level-name { font-family: var(--ff-d) !important; font-weight: 700 !important; color: var(--text-1) !important; margin-bottom: 6px !important; font-size: 14px !important; }
.vc-level-desc { font-size: 12px !important; color: var(--text-3) !important; line-height: 1.6 !important; }
.vc-modules { margin-bottom: 40px !important; }
.vc-module-item {
  display: flex !important;
  align-items: center !important;
  gap: 16px !important;
  padding: 16px 20px !important;
  background: var(--bg-3) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--r-md) !important;
  margin-bottom: 10px !important;
  transition: all var(--tf) !important;
}
.vc-module-item:hover { border-color: var(--border-2) !important; background: var(--bg-4) !important; }
.vc-module-locked { opacity: 0.5 !important; }
.vc-mod-num {
  width: 36px; height: 36px;
  border-radius: var(--r-sm);
  background: rgba(255,92,26,0.12);
  border: 1px solid rgba(255,92,26,0.2);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--ff-d);
  font-size: 13px; font-weight: 800;
  color: var(--orange);
  flex-shrink: 0;
}
.vc-mod-more { background: rgba(255,255,255,0.05) !important; color: var(--text-3) !important; border-color: var(--border) !important; }
.vc-mod-title { font-size: 14px !important; font-weight: 700 !important; color: var(--text-1) !important; font-family: var(--ff-d) !important; letter-spacing: -0.2px !important; }
.vc-mod-meta { font-size: 12px !important; color: var(--text-3) !important; margin-top: 3px !important; }
.vc-mod-arrow {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-3);
  margin-left: auto;
  flex-shrink: 0;
  font-size: 14px;
  transition: all var(--tf);
}
.vc-module-item:hover .vc-mod-arrow { border-color: var(--border-o); color: var(--orange); background: rgba(255,92,26,0.08); }
.vc-tag { display: inline-block; padding: 2px 8px; border-radius: 100px; font-size: 11px; font-weight: 700; }
.vc-tag-green { background: rgba(0,214,143,0.12); color: #00D68F; }
.vc-tag-cyan { background: rgba(0,200,255,0.12); color: var(--cyan); }
.vc-tag-yellow { background: rgba(245,166,35,0.12); color: var(--gold); }
.vc-tag-orange { background: rgba(255,92,26,0.12); color: var(--orange); }
.vc-cta-bottom { text-align: center !important; padding-top: 16px !important; }
.vc-cta-note { font-size: 12.5px !important; color: var(--text-4) !important; margin-top: 12px !important; }

/* ═══════════════════════════════════════
   NEWSLETTER
═══════════════════════════════════════ */
.newsletter-section {
  background: var(--bg-2) !important;
  border-top: 1px solid var(--border) !important;
  padding: 60px 0 !important;
}
.newsletter-form {
  display: flex !important;
  gap: 10px !important;
  max-width: 440px !important;
  margin: 0 auto !important;
  flex-wrap: wrap !important;
  justify-content: center !important;
}
.newsletter-input {
  flex: 1 !important;
  min-width: 200px !important;
  padding: 12px 18px !important;
  background: var(--bg-3) !important;
  border: 1px solid var(--border-2) !important;
  border-radius: var(--r-md) !important;
  color: var(--text-1) !important;
  font-size: 14px !important;
  font-family: var(--ff) !important;
  outline: none !important;
  transition: border-color var(--tf) !important;
}
.newsletter-input:focus { border-color: var(--border-o) !important; }
.newsletter-btn {
  padding: 12px 24px !important;
  background: var(--orange) !important;
  color: #fff !important;
  border: none !important;
  border-radius: var(--r-md) !important;
  font-weight: 700 !important;
  font-size: 13px !important;
  cursor: pointer !important;
  font-family: var(--ff-d) !important;
  transition: all var(--tf) !important;
}
.newsletter-btn:hover { background: var(--orange-lt) !important; transform: translateY(-1px) !important; }

/* ═══════════════════════════════════════
   FOOTER
═══════════════════════════════════════ */
.main-footer {
  background: var(--bg) !important;
  border-top: 1px solid var(--border) !important;
  padding: 56px 0 32px !important;
}
.footer-inner {
  display: flex !important;
  gap: 48px !important;
  flex-wrap: wrap !important;
  justify-content: space-between !important;
}
.footer-left { flex: 0 0 260px; }
.footer-slogan {
  font-size: 13px !important;
  color: var(--text-3) !important;
  line-height: 1.7 !important;
  margin: 14px 0 !important;
  font-style: italic !important;
}
.footer-copy { font-size: 12px !important; color: var(--text-4) !important; margin-top: 4px !important; }
.footer-nav { display: flex; gap: 48px; flex-wrap: wrap; }
.footer-col h4 {
  font-family: var(--ff-d) !important;
  font-size: 11px !important;
  font-weight: 800 !important;
  letter-spacing: 2px !important;
  text-transform: uppercase !important;
  color: var(--text-2) !important;
  margin-bottom: 14px !important;
}
.footer-col a {
  display: block !important;
  font-size: 13px !important;
  color: var(--text-3) !important;
  margin-bottom: 8px !important;
  transition: color var(--tf) !important;
}
.footer-col a:hover { color: var(--orange) !important; }

/* ═══════════════════════════════════════
   CART + POPUPS + OVERLAYS
═══════════════════════════════════════ */
.cart-btn {
  width: 38px; height: 38px;
  border-radius: var(--r-sm);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text-2);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  position: relative;
  transition: all var(--tf);
}
.cart-btn:hover { border-color: var(--border-o); color: var(--text-1); }
.cart-badge {
  position: absolute !important;
  top: -5px; right: -5px !important;
  background: var(--orange) !important;
  color: #fff !important;
  font-size: 10px !important;
  font-weight: 800 !important;
  width: 18px; height: 18px !important;
  border-radius: 50% !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  line-height: 1 !important;
}
.cart-sidebar {
  background: var(--bg-2) !important;
  border-left: 1px solid var(--border) !important;
}
.cart-header {
  border-bottom: 1px solid var(--border) !important;
  padding: 20px 22px !important;
}
.popup-overlay,
.free-modal {
  background: rgba(0,0,0,0.75) !important;
  backdrop-filter: blur(8px) !important;
}
.popup-content,
.free-modal-box {
  background: var(--bg-2) !important;
  border: 1px solid var(--border-2) !important;
  border-radius: var(--r-xl) !important;
  box-shadow: 0 32px 80px rgba(0,0,0,0.7) !important;
}

/* ═══════════════════════════════════════
   REWARD BANNER — Polish
═══════════════════════════════════════ */
.reward-banner {
  background: linear-gradient(135deg, #0a0a0f 0%, #160800 40%, #0a0a0f 100%) !important;
  border-color: rgba(255,92,26,0.30) !important;
}
.reward-headline {
  font-family: var(--ff-d) !important;
}

/* ═══════════════════════════════════════
   TOAST
═══════════════════════════════════════ */
.tt-toast {
  background: var(--bg-3) !important;
  border: 1px solid var(--border-2) !important;
  border-radius: var(--r-md) !important;
  font-size: 13.5px !important;
  color: var(--text-1) !important;
  font-family: var(--ff) !important;
}

/* ═══════════════════════════════════════
   DEMO SECTION
═══════════════════════════════════════ */
.demo-section { background: var(--bg) !important; }
.demo-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)) !important;
  gap: 18px !important;
}

/* Lang switcher — ẩn, chỉ dùng tiếng Việt */
.lang-switcher { display: none !important; }

/* ═══════════════════════════════════════
   ANIMATIONS
═══════════════════════════════════════ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero-badge    { animation: fadeUp 0.6s ease both 0.1s; }
.hero-title    { animation: fadeUp 0.7s ease both 0.2s; }
.hero-slogan   { animation: fadeUp 0.7s ease both 0.35s; }
.hero-desc     { animation: fadeUp 0.7s ease both 0.45s; }
.hero-actions  { animation: fadeUp 0.7s ease both 0.55s; }
.hero-stats    { animation: fadeUp 0.7s ease both 0.65s; }

/* Reveal on scroll placeholder (JS-driven) */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ═══════════════════════════════════════
   MOBILE RESPONSIVE
═══════════════════════════════════════ */
@media (max-width: 900px) {
  .footer-inner { flex-direction: column; gap: 32px; }
  .footer-left { flex: none; }
}
@media (max-width: 768px) {
  .hero-section { min-height: auto !important; }
  .hero-inner { padding: 96px 20px 64px !important; }
  .hero-title { font-size: clamp(30px,8vw,46px) !important; letter-spacing: -1.5px !important; }
  .hero-actions { flex-direction: column !important; align-items: stretch !important; }
  .hero-actions a { text-align: center !important; justify-content: center !important; }
  .hero-stats { flex-wrap: wrap !important; padding: 18px !important; gap: 0 !important; }
  .hero-stats .stat { min-width: 45% !important; padding: 12px 8px !important; }
  .hero-stats .stat-line:nth-child(4) { display: none !important; }
  .trust-row { justify-content: flex-start !important; overflow-x: auto !important; flex-nowrap: nowrap !important; padding: 0 16px !important; }
  .section { padding: 60px 0 !important; }
  .product-grid, .why-grid, .demo-grid { grid-template-columns: 1fr !important; }
  .platform-grid { grid-template-columns: 1fr !important; }
  .vc-levels { grid-template-columns: repeat(2, 1fr) !important; }
  .header-inner { padding: 0 16px !important; }
  .main-nav { display: none !important; }
}
@media (max-width: 500px) {
  .vc-levels { grid-template-columns: 1fr !important; }
  .vc-stats { padding: 18px 16px !important; flex-wrap: wrap !important; gap: 12px !important; }
}