/* ============================================================
   ĐẾ CHẾ AI — Sales Page Styles
   Màu hợp mệnh Đại Hải Thủy (Nước biển lớn):
   - Màu chủ đạo: Xanh đen đại dương (#0a1628), Xanh dương sâu (#0d2b5e)
   - Màu nhấn: Xanh teal sáng (#00c8d4), Xanh lam biển (#1a6eb5)
   - Màu vàng kim (thủy sinh kim): #e6b84a, #ffd700
   - Background: gradient đen xanh thẳm như đại hải
   ============================================================ */

/* ── RESET & BASE ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Be Vietnam Pro', sans-serif;
  background-color: #050d1a;
  color: #d4e8ff;
  line-height: 1.7;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }

img { max-width: 100%; display: block; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── TYPOGRAPHY HIGHLIGHTS ── */
.highlight-gold  { color: #e6b84a; }
.highlight-teal  { color: #00c8d4; }
.highlight-red   { color: #ff5e5e; }

/* ── SECTION LABELS ── */
.section-label {
  display: inline-block;
  background: rgba(0, 200, 212, 0.12);
  border: 1px solid rgba(0, 200, 212, 0.4);
  color: #00c8d4;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  padding: 6px 16px;
  border-radius: 20px;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.section-title {
  font-size: clamp(1.7rem, 3.5vw, 2.6rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 18px;
  color: #e8f4ff;
}

.section-desc {
  font-size: 1.05rem;
  color: #8fb8dc;
  max-width: 680px;
  margin: 0 auto 40px;
  text-align: center;
}

/* ══════════════════════════════════════════════
   WATER / WAVE ANIMATION (hình nền sóng nước)
══════════════════════════════════════════════ */
.water-anim {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.wave {
  position: absolute;
  bottom: -20px;
  width: 200%;
  height: 220px;
  border-radius: 50% 50% 0 0 / 80px;
  opacity: 0.08;
}

.wave1 {
  background: radial-gradient(ellipse at center, #00c8d4 0%, #0d4fa8 60%, transparent 100%);
  animation: waveMove 8s ease-in-out infinite;
  bottom: 0;
}
.wave2 {
  background: radial-gradient(ellipse at center, #1a6eb5 0%, #0a2a5c 60%, transparent 100%);
  animation: waveMove 12s ease-in-out infinite reverse;
  bottom: 30px;
  opacity: 0.06;
}
.wave3 {
  background: radial-gradient(ellipse at center, #e6b84a 0%, #0d4fa8 70%, transparent 100%);
  animation: waveMove 16s ease-in-out infinite;
  bottom: 60px;
  opacity: 0.04;
}

@keyframes waveMove {
  0%   { transform: translateX(-25%) scaleY(1); }
  50%  { transform: translateX(-10%) scaleY(1.15); }
  100% { transform: translateX(-25%) scaleY(1); }
}

/* Mid-section wave */
.water-anim-mid {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}
.wave-mid {
  position: absolute;
  width: 200%;
  height: 180px;
  border-radius: 50%;
  opacity: 0.06;
}
.wave-m1 {
  background: radial-gradient(ellipse, #00c8d4, transparent 70%);
  top: -40px;
  animation: waveMove 10s ease-in-out infinite;
}
.wave-m2 {
  background: radial-gradient(ellipse, #e6b84a, transparent 70%);
  bottom: -40px;
  animation: waveMove 14s ease-in-out infinite reverse;
}

/* ══════════════════════════════════════════════
   HERO SECTION
══════════════════════════════════════════════ */
#hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background:
    linear-gradient(160deg, #020b18 0%, #051428 30%, #071d3f 60%, #030e20 100%);
  padding: 100px 0 80px;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 30%, rgba(13, 75, 168, 0.25) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(0, 200, 212, 0.1) 0%, transparent 70%),
    radial-gradient(ellipse 40% 30% at 80% 10%, rgba(230, 184, 74, 0.08) 0%, transparent 70%);
  z-index: 1;
}

/* Floating particles */
#hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(0,200,212,0.5) 1px, transparent 1px),
    radial-gradient(circle, rgba(230,184,74,0.3) 1px, transparent 1px);
  background-size: 60px 60px, 90px 90px;
  background-position: 0 0, 30px 30px;
  opacity: 0.15;
  z-index: 1;
  animation: particlesDrift 20s linear infinite;
}

@keyframes particlesDrift {
  0%   { transform: translateY(0); }
  100% { transform: translateY(-60px); }
}

.hero-content {
  position: relative;
  z-index: 3;
}

.badge-top {
  display: inline-block;
  background: linear-gradient(135deg, #c8820a, #e6b84a);
  color: #0a1628;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  padding: 8px 20px;
  border-radius: 30px;
  margin-bottom: 28px;
  animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(230,184,74,0.4); }
  50%       { transform: scale(1.04); box-shadow: 0 0 0 10px rgba(230,184,74,0); }
}

#hero-section h1 {
  font-size: clamp(2rem, 5.5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.15;
  color: #ffffff;
  margin-bottom: 24px;
  text-shadow: 0 2px 30px rgba(0,0,0,0.5);
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: #8ecfe8;
  max-width: 660px;
  margin: 0 auto 32px;
  line-height: 1.8;
}

.hero-sub strong { color: #00c8d4; }

.hero-price-tag {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.old-price {
  font-size: 1rem;
  color: #5a7a9a;
  text-decoration: line-through;
}

.new-price {
  font-size: 1.8rem;
  font-weight: 900;
  color: #e6b84a;
  text-shadow: 0 0 20px rgba(230,184,74,0.4);
}

.hero-note {
  margin-top: 18px;
  font-size: 0.85rem;
  color: #5a8eaa;
}

/* ══════════════════════════════════════════════
   CTA BUTTONS
══════════════════════════════════════════════ */
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}

.btn-cta-hero {
  background: linear-gradient(135deg, #00b8c4, #006eb5);
  color: #fff;
  box-shadow: 0 8px 32px rgba(0, 184, 196, 0.4);
  font-size: 1.1rem;
  padding: 18px 44px;
}
.btn-cta-hero:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 40px rgba(0, 184, 196, 0.55);
}

.btn-cta-gold {
  background: linear-gradient(135deg, #c8820a, #e6b84a, #ffd700);
  color: #0a1628;
  box-shadow: 0 8px 32px rgba(230, 184, 74, 0.4);
}
.btn-cta-gold:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 40px rgba(230, 184, 74, 0.55);
}

.btn-cta-sec {
  background: transparent;
  color: #00c8d4;
  border: 2px solid #00c8d4;
  box-shadow: 0 0 20px rgba(0, 200, 212, 0.15);
}
.btn-cta-sec:hover {
  background: rgba(0, 200, 212, 0.12);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 200, 212, 0.3);
}

/* ══════════════════════════════════════════════
   SECTION BACKGROUNDS
══════════════════════════════════════════════ */
.section-dark {
  background: #050d1a;
  padding: 90px 0;
  text-align: center;
}

.section-mid {
  background: linear-gradient(180deg, #071428 0%, #060f20 100%);
  padding: 90px 0;
  text-align: center;
}

.section-solution {
  position: relative;
  background: linear-gradient(160deg, #071d3f 0%, #050d1a 50%, #0d2b5e 100%);
  padding: 100px 0;
  text-align: center;
  overflow: hidden;
}

.section-pricing {
  position: relative;
  background: linear-gradient(180deg, #050d1a 0%, #071428 100%);
  padding: 100px 0;
  text-align: center;
  overflow: hidden;
}

/* ══════════════════════════════════════════════
   PAIN SECTION
══════════════════════════════════════════════ */
.pain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin: 48px 0 40px;
  text-align: left;
}

.pain-card {
  background: linear-gradient(135deg, rgba(13,43,94,0.5) 0%, rgba(5,13,26,0.8) 100%);
  border: 1px solid rgba(0, 200, 212, 0.15);
  border-radius: 16px;
  padding: 28px 24px;
  transition: all 0.3s ease;
}

.pain-card:hover {
  border-color: rgba(0, 200, 212, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 200, 212, 0.1);
}

.pain-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, rgba(0,200,212,0.2), rgba(13,79,168,0.3));
  border: 1px solid rgba(0,200,212,0.3);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #00c8d4;
  margin-bottom: 16px;
}

.pain-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #e8f4ff;
  margin-bottom: 10px;
}

.pain-card p {
  font-size: 0.9rem;
  color: #6a9bbf;
  line-height: 1.65;
}

.pain-cta-wrap { margin-top: 20px; }

/* ══════════════════════════════════════════════
   FAILED SECTION
══════════════════════════════════════════════ */
.failed-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 780px;
  margin: 40px auto 40px;
  text-align: left;
}

.failed-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: rgba(255, 94, 94, 0.06);
  border: 1px solid rgba(255, 94, 94, 0.15);
  border-radius: 12px;
  padding: 18px 20px;
}

.failed-x {
  font-size: 1.4rem;
  color: #ff5e5e;
  flex-shrink: 0;
  margin-top: 2px;
}

.failed-item strong {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: #e8f4ff;
  margin-bottom: 4px;
}

.failed-item p {
  font-size: 0.88rem;
  color: #6a9bbf;
  margin: 0;
}

.insight-box {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  background: linear-gradient(135deg, rgba(13,75,168,0.25), rgba(0,200,212,0.1));
  border: 1px solid rgba(0, 200, 212, 0.35);
  border-radius: 16px;
  padding: 24px 28px;
  max-width: 780px;
  margin: 0 auto;
  text-align: left;
}

.insight-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #00b8c4, #0d4fa8);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #fff;
  font-weight: 900;
  flex-shrink: 0;
}

.insight-box p {
  font-size: 0.98rem;
  color: #8ecfe8;
  line-height: 1.7;
}

.insight-box strong { color: #e6b84a; }
.insight-box em { color: #00c8d4; font-style: normal; font-weight: 700; }

/* ══════════════════════════════════════════════
   KEYS GRID
══════════════════════════════════════════════ */
.keys-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
  margin: 48px 0;
  text-align: left;
}

.key-card {
  background: linear-gradient(135deg, rgba(13,43,94,0.6), rgba(5,13,26,0.9));
  border: 1px solid rgba(230, 184, 74, 0.2);
  border-radius: 16px;
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.key-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, #e6b84a, #00c8d4);
}

.key-card:hover {
  border-color: rgba(230, 184, 74, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(230, 184, 74, 0.1);
}

.key-num {
  font-size: 2.5rem;
  font-weight: 900;
  color: rgba(230, 184, 74, 0.15);
  line-height: 1;
  margin-bottom: 12px;
}

.key-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #e6b84a;
  margin-bottom: 10px;
}

.key-card p {
  font-size: 0.88rem;
  color: #6a9bbf;
  line-height: 1.65;
}

.key-card strong { color: #00c8d4; }

/* ══════════════════════════════════════════════
   RESULT GRID (Solution Section)
══════════════════════════════════════════════ */
.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
  margin: 40px 0 48px;
  text-align: left;
}

.result-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: rgba(0, 200, 212, 0.06);
  border: 1px solid rgba(0, 200, 212, 0.15);
  border-radius: 12px;
  padding: 16px 18px;
  font-size: 0.92rem;
  color: #8ecfe8;
  line-height: 1.6;
}

.result-item > i {
  color: #00c8d4;
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.result-item strong { color: #e6b84a; }

/* ══════════════════════════════════════════════
   BEFORE / AFTER
══════════════════════════════════════════════ */
.ba-wrapper {
  display: flex;
  gap: 0;
  margin: 48px 0 40px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.ba-col {
  flex: 1;
  padding: 36px 30px;
  text-align: left;
}

.ba-before {
  background: linear-gradient(135deg, #1a0a0a, #2a0d0d);
  border: 1px solid rgba(255, 94, 94, 0.2);
}

.ba-after {
  background: linear-gradient(135deg, #051428, #071d3f);
  border: 1px solid rgba(0, 200, 212, 0.2);
}

.ba-header {
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.ba-before .ba-header { color: #ff7a7a; }
.ba-after  .ba-header { color: #00c8d4; }

.ba-col ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }

.ba-col li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  line-height: 1.6;
}

.ba-before li { color: #aa7070; }
.ba-before li i { color: #ff5e5e; flex-shrink: 0; margin-top: 3px; }

.ba-after li { color: #8ecfe8; }
.ba-after li i { color: #00c8d4; flex-shrink: 0; margin-top: 3px; }
.ba-after li strong { color: #e6b84a; }

.ba-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, #0d2b5e, #051428);
  padding: 0 20px;
  font-size: 1.8rem;
  color: #e6b84a;
  min-width: 60px;
}

.ba-cta-wrap { margin-top: 20px; }

/* ══════════════════════════════════════════════
   13 GROUPS
══════════════════════════════════════════════ */
.groups-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 18px;
  margin: 48px 0 40px;
  text-align: left;
}

.group-card {
  background: linear-gradient(135deg, rgba(13,43,94,0.5), rgba(5,13,26,0.8));
  border: 1px solid rgba(0, 200, 212, 0.12);
  border-radius: 16px;
  padding: 24px 20px;
  position: relative;
  transition: all 0.3s ease;
}

.group-card:hover {
  border-color: rgba(0, 200, 212, 0.35);
  transform: translateY(-5px);
  box-shadow: 0 16px 48px rgba(0, 200, 212, 0.12);
}

.group-num {
  position: absolute;
  top: 12px;
  right: 16px;
  font-size: 0.72rem;
  font-weight: 800;
  color: rgba(0, 200, 212, 0.3);
  letter-spacing: 0.05em;
}

.group-icon {
  font-size: 1.6rem;
  color: #00c8d4;
  margin-bottom: 12px;
}

.group-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #e8f4ff;
  margin-bottom: 8px;
}

.group-card p {
  font-size: 0.82rem;
  color: #5a8eaa;
  line-height: 1.6;
}

.groups-cta-wrap { margin-top: 10px; }

/* ══════════════════════════════════════════════
   ROADMAP
══════════════════════════════════════════════ */
.roadmap-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 780px;
  margin: 48px auto 40px;
  position: relative;
}

.roadmap-list::before {
  content: '';
  position: absolute;
  left: 74px;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, #00c8d4, #e6b84a, #00c8d4);
  opacity: 0.3;
}

.roadmap-item {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 32px;
  text-align: left;
}

.roadmap-badge {
  background: linear-gradient(135deg, #0d4fa8, #00b8c4);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  padding: 8px 12px;
  border-radius: 10px;
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 100px;
  text-align: center;
  box-shadow: 0 4px 16px rgba(0, 184, 196, 0.3);
  position: relative;
  z-index: 1;
}

.roadmap-body {
  background: linear-gradient(135deg, rgba(13,43,94,0.4), rgba(5,13,26,0.7));
  border: 1px solid rgba(0, 200, 212, 0.15);
  border-radius: 14px;
  padding: 20px 22px;
  flex: 1;
}

.roadmap-body h3 {
  font-size: 1rem;
  font-weight: 700;
  color: #e8f4ff;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.roadmap-body h3 i { color: #00c8d4; }

.roadmap-body p {
  font-size: 0.88rem;
  color: #6a9bbf;
  line-height: 1.65;
}

.roadmap-body strong { color: #e6b84a; }
.roadmap-cta-wrap { margin-top: 10px; }

/* ══════════════════════════════════════════════
   COUNTDOWN
══════════════════════════════════════════════ */
.countdown-bar {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, rgba(255,94,94,0.12), rgba(200,130,10,0.15));
  border: 1px solid rgba(230, 184, 74, 0.3);
  border-radius: 50px;
  padding: 12px 28px;
  font-size: 0.92rem;
  color: #e6b84a;
  font-weight: 700;
  margin-bottom: 48px;
  animation: pulseBorder 2s ease-in-out infinite;
}

@keyframes pulseBorder {
  0%, 100% { box-shadow: 0 0 0 0 rgba(230,184,74,0.2); }
  50%       { box-shadow: 0 0 0 8px rgba(230,184,74,0); }
}

.countdown-time {
  font-size: 1.4rem;
  font-weight: 900;
  color: #ff6b6b;
  font-variant-numeric: tabular-nums;
  min-width: 90px;
  text-align: center;
}

/* ══════════════════════════════════════════════
   PRICING GRID
══════════════════════════════════════════════ */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  max-width: 960px;
  margin: 0 auto 40px;
  align-items: start;
}

.pricing-card {
  border-radius: 24px;
  padding: 36px 30px 40px;
  position: relative;
  text-align: left;
  overflow: hidden;
}

/* Starter card */
.card-starter {
  background: linear-gradient(160deg, #0a1a34 0%, #071428 100%);
  border: 1px solid rgba(26, 110, 181, 0.3);
}

/* Empire card */
.card-empire {
  background: linear-gradient(160deg, #0d2b5e 0%, #071d3f 50%, #0a1a34 100%);
  border: 2px solid rgba(230, 184, 74, 0.5);
  box-shadow: 0 0 60px rgba(230, 184, 74, 0.12), 0 20px 60px rgba(0,0,0,0.4);
}

.card-empire::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(230,184,74,0.07) 0%, transparent 60%);
  pointer-events: none;
}

.pricing-best-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #c8820a, #e6b84a);
  color: #0a1628;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  padding: 8px 18px;
  border-radius: 30px;
  margin-bottom: 18px;
  animation: pulse-badge 2s ease-in-out infinite;
}

.pricing-tag {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: #1a6eb5;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.tag-empire { color: #e6b84a; }

.pricing-name {
  font-size: 1.8rem;
  font-weight: 900;
  color: #e8f4ff;
  margin-bottom: 6px;
}

.name-empire { color: #ffd700; }

.pricing-target {
  font-size: 0.85rem;
  color: #5a8eaa;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.pricing-price-wrap {
  margin-bottom: 20px;
}

.pricing-old {
  display: block;
  font-size: 0.9rem;
  color: #3a5a7a;
  text-decoration: line-through;
  margin-bottom: 4px;
}

.pricing-main-price {
  font-size: 2.6rem;
  font-weight: 900;
  color: #1a9ee0;
  line-height: 1;
  margin-bottom: 8px;
}

.price-empire { color: #e6b84a; }

.pricing-save {
  display: inline-block;
  background: rgba(0, 200, 212, 0.12);
  border: 1px solid rgba(0, 200, 212, 0.3);
  color: #00c8d4;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
}

.save-empire {
  background: rgba(230, 184, 74, 0.12);
  border-color: rgba(230, 184, 74, 0.4);
  color: #e6b84a;
}

/* Miss-out box */
.miss-out-box {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: linear-gradient(135deg, rgba(255,94,94,0.1), rgba(200,130,10,0.12));
  border: 1px solid rgba(255, 94, 94, 0.25);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 20px;
  font-size: 0.85rem;
  color: #ffaa6b;
  line-height: 1.55;
}

.miss-out-box i { color: #ff5e5e; flex-shrink: 0; margin-top: 2px; font-size: 1rem; }
.miss-out-box strong { color: #ff5e5e; }

/* Features list */
.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: #8ecfe8;
  line-height: 1.55;
}

.pricing-features li i {
  font-size: 0.9rem;
  flex-shrink: 0;
  margin-top: 3px;
  color: #00c8d4;
}

.pricing-features .fa-check { color: #00c8d4; }
.pricing-features .fa-times { color: #ff5e5e; }

.feature-no { color: #3a5a7a !important; }

.bonus-item i { color: #e6b84a !important; }
.bonus-label { color: #e6b84a !important; }

/* Buy buttons */
.btn-buy {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 16px 24px;
  border-radius: 14px;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}

.btn-buy-starter {
  background: linear-gradient(135deg, #0d4fa8, #1a6eb5);
  color: #fff;
  box-shadow: 0 6px 24px rgba(26, 110, 181, 0.35);
}
.btn-buy-starter:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(26, 110, 181, 0.5);
}

.btn-buy-empire {
  background: linear-gradient(135deg, #c8820a, #e6b84a, #ffd700);
  color: #0a1628;
  box-shadow: 0 8px 32px rgba(230, 184, 74, 0.45);
  font-size: 1.05rem;
  padding: 18px 24px;
}
.btn-buy-empire:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(230, 184, 74, 0.6);
}

.empire-note {
  text-align: center;
  font-size: 0.8rem;
  color: #5a8eaa;
  margin-top: 14px;
}

.pricing-disclaimer {
  font-size: 0.82rem;
  color: #3a5a7a;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.pricing-disclaimer i { color: #1a6eb5; }

/* ══════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════ */
#site-footer {
  background: #020810;
  padding: 48px 24px;
  text-align: center;
  border-top: 1px solid rgba(0, 200, 212, 0.1);
}

.footer-logo {
  font-size: 1.6rem;
  font-weight: 900;
  color: #e6b84a;
  margin-bottom: 10px;
  letter-spacing: 0.05em;
}

.footer-tagline {
  font-size: 0.88rem;
  color: #3a5a7a;
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 16px;
}

.footer-links a {
  font-size: 0.82rem;
  color: #2a4a6a;
  transition: color 0.2s;
}

.footer-links a:hover { color: #00c8d4; }

.footer-links span { color: #1a2a3a; }

.footer-copy {
  font-size: 0.78rem;
  color: #1e3a52;
}

/* ══════════════════════════════════════════════
   FLOATING CTA
══════════════════════════════════════════════ */
.float-cta {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 9999;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.4s ease;
  pointer-events: none;
}

.float-cta.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.btn-float-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #c8820a, #e6b84a);
  color: #0a1628;
  font-size: 0.88rem;
  font-weight: 800;
  padding: 14px 24px;
  border-radius: 50px;
  box-shadow: 0 8px 32px rgba(230, 184, 74, 0.5);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  animation: floatPulse 2.5s ease-in-out infinite;
}

@keyframes floatPulse {
  0%, 100% { box-shadow: 0 8px 32px rgba(230,184,74,0.5); }
  50%       { box-shadow: 0 12px 48px rgba(230,184,74,0.7); }
}

/* ══════════════════════════════════════════════
   ANIMATIONS — SCROLL FADE IN
══════════════════════════════════════════════ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ══════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════ */
@media (max-width: 768px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
  }

  .ba-wrapper {
    flex-direction: column;
  }

  .ba-divider {
    padding: 14px;
    transform: rotate(90deg);
    min-width: unset;
    align-self: center;
  }

  .roadmap-list::before { display: none; }

  .roadmap-item {
    flex-direction: column;
  }

  .roadmap-badge {
    align-self: flex-start;
  }

  .keys-grid {
    grid-template-columns: 1fr;
  }

  .pain-grid {
    grid-template-columns: 1fr;
  }

  .float-cta {
    bottom: 16px;
    right: 50%;
    transform: translateX(50%) translateY(20px);
  }

  .float-cta.visible {
    transform: translateX(50%) translateY(0);
  }

  .btn-float-cta {
    font-size: 0.78rem;
    padding: 12px 18px;
  }

  .groups-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  }

  #hero-section h1 {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.6rem;
  }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .ba-col { padding: 24px 18px; }

  .pricing-card { padding: 28px 20px 32px; }

  .pricing-main-price { font-size: 2rem; }

  .groups-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ══════════════════════════════════════════════
   GLOW EFFECTS (thủy mệnh)
══════════════════════════════════════════════ */
.section-solution .section-title,
.section-pricing .section-title {
  text-shadow: 0 0 40px rgba(0, 200, 212, 0.15);
}

.pricing-card.card-empire .pricing-name {
  text-shadow: 0 0 30px rgba(230, 184, 74, 0.3);
}

/* Scrollbar custom */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #020810; }
::-webkit-scrollbar-thumb { background: linear-gradient(#00c8d4, #0d4fa8); border-radius: 3px; }