/* ===================================================================
   TIKTIK - STYLESHEET (PREMIUM CYBER DARK THEME)
   =================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Core Color Palette */
  --bg-main: #060913;
  --bg-secondary: #0b1120;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.03);
  
  /* Accent Colors */
  --cyan-neon: #06b6d4;
  --cyan-glow: rgba(6, 182, 212, 0.35);
  --purple-neon: #8b5cf6;
  --purple-glow: rgba(139, 92, 246, 0.35);
  --emerald-neon: #10b981;
  --emerald-glow: rgba(16, 185, 129, 0.3);
  --amber-neon: #f59e0b;
  --rose-neon: #f43f5e;
  
  /* Gradients */
  --grad-primary: linear-gradient(135deg, #06b6d4 0%, #3b82f6 50%, #8b5cf6 100%);
  --grad-hover: linear-gradient(135deg, #0891b2 0%, #2563eb 50%, #7c3aed 100%);
  --grad-card: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.01) 100%);
  --grad-gold: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #d97706 100%);
  --grad-text: linear-gradient(135deg, #ffffff 0%, #cbd5e1 50%, #94a3b8 100%);
  
  /* Borders & Shadows */
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-neon: rgba(6, 182, 212, 0.4);
  --shadow-box: 0 20px 40px -15px rgba(0, 0, 0, 0.7);
  --shadow-neon: 0 0 25px rgba(6, 182, 212, 0.35);
  --shadow-purple: 0 0 25px rgba(139, 92, 246, 0.35);

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;

  /* Layout */
  --container-max: 1200px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: #e2e8f0;
  line-height: 1.65;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(6, 182, 212, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 50% 80%, rgba(16, 185, 129, 0.08) 0%, transparent 50%);
  background-attachment: fixed;
}

/* Selection & Scrollbar */
::selection {
  background: var(--cyan-neon);
  color: #000;
}

::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
  background: #1e293b;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #334155;
}

/* Container */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography Utilities */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: #ffffff;
  font-weight: 700;
  line-height: 1.25;
}

.text-gradient {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-gold {
  background: var(--grad-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  background: rgba(6, 182, 212, 0.1);
  color: var(--cyan-neon);
  border: 1px solid rgba(6, 182, 212, 0.25);
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.15);
}

.badge.badge-gold {
  background: rgba(245, 158, 11, 0.1);
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.3);
  box-shadow: 0 0 15px rgba(245, 158, 11, 0.15);
}

.badge.badge-green {
  background: rgba(16, 185, 129, 0.1);
  color: var(--emerald-neon);
  border-color: rgba(16, 185, 129, 0.3);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--grad-primary);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(6, 182, 212, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(6, 182, 212, 0.6);
  filter: brightness(1.08);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: #ffffff;
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-gold {
  background: var(--grad-gold);
  color: #000000;
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.35);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(245, 158, 11, 0.55);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.88rem;
}

.btn-lg {
  padding: 18px 36px;
  font-size: 1.15rem;
}

/* Glassmorphism Card */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  box-shadow: var(--shadow-box);
  position: relative;
}

.glass-card:hover {
  border-color: rgba(255, 255, 255, 0.18);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}

/* ===================================================================
   NAVBAR
   =================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 18px 0;
  transition: var(--transition);
  background: rgba(6, 9, 19, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-glass);
}

.navbar .nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--grad-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.25rem;
  box-shadow: 0 0 15px var(--cyan-glow);
}

.brand-text {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.5px;
}

.brand-tag {
  background: var(--grad-gold);
  color: #000;
  font-size: 0.65rem;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 6px;
  vertical-align: middle;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 32px;
}

.nav-link {
  color: #94a3b8;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: #ffffff;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--cyan-neon);
  box-shadow: 0 0 8px var(--cyan-neon);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-switch-wrap {
  display: inline-flex;
  align-items: center;
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  padding: 3px 6px;
  gap: 2px;
}

.lang-btn {
  background: transparent;
  border: none;
  color: #94a3b8;
  font-weight: 700;
  font-size: 0.75rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 14px;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.lang-btn:hover {
  color: #ffffff;
}

.lang-btn.active {
  background: var(--cyan-neon);
  color: #020617;
  font-weight: 800;
  box-shadow: 0 0 12px rgba(6, 182, 212, 0.5);
}

.lang-divider {
  color: #475569;
  font-size: 0.75rem;
  user-select: none;
}

/* ===================================================================
   HERO SECTION
   =================================================================== */
.hero-section {
  padding: 160px 0 100px 0;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-content .hero-badge {
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.5rem;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}

.hero-desc {
  font-size: 1.15rem;
  color: #94a3b8;
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-buttons {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding-top: 32px;
  border-top: 1px solid var(--border-glass);
}

.stat-item h3 {
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.stat-item p {
  color: #64748b;
  font-size: 0.88rem;
  font-weight: 500;
}

/* Tool Preview Card (Mockup) */
.tool-mockup-wrapper {
  position: relative;
}

.mockup-glow {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.2) 0%, rgba(139, 92, 246, 0.2) 50%, transparent 75%);
  filter: blur(40px);
  z-index: -1;
}

.tool-mockup {
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.9), 0 0 30px rgba(6, 182, 212, 0.2);
  overflow: hidden;
  backdrop-filter: blur(20px);
}

.mockup-header {
  background: rgba(30, 41, 59, 0.7);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-glass);
}

.window-dots {
  display: flex;
  gap: 8px;
}

.window-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.mockup-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: #94a3b8;
}

.mockup-badge {
  font-size: 0.75rem;
  background: rgba(16, 185, 129, 0.15);
  color: var(--emerald-neon);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-weight: 700;
}

.mockup-body {
  padding: 24px;
}

.mockup-row {
  margin-bottom: 20px;
}

.mockup-label {
  font-size: 0.82rem;
  color: #94a3b8;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mockup-select-box {
  background: rgba(2, 6, 23, 0.7);
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mockup-select-box i {
  color: var(--cyan-neon);
}

.mockup-progress-box {
  background: rgba(2, 6, 23, 0.7);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 14px;
}

.progress-bar-bg {
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 10px;
}

.progress-bar-fill {
  height: 100%;
  width: 78%;
  background: var(--grad-primary);
  box-shadow: 0 0 10px var(--cyan-neon);
  animation: pulse-glow 2s infinite alternate;
}

@keyframes pulse-glow {
  0% { opacity: 0.8; width: 72%; }
  100% { opacity: 1; width: 85%; }
}

.progress-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: #64748b;
}

.status-log-box {
  background: #020617;
  border-radius: var(--radius-sm);
  padding: 12px;
  font-family: 'Courier New', monospace;
  font-size: 0.8rem;
  border: 1px solid var(--border-glass);
}

.log-line {
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.log-line.success { color: var(--emerald-neon); }
.log-line.process { color: var(--cyan-neon); }

/* ===================================================================
   SECTION: 3 EDIT MODES
   =================================================================== */
.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 64px auto;
}

.section-header .badge {
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.5rem;
  letter-spacing: -0.8px;
  margin-bottom: 16px;
}

.section-subtitle {
  color: #94a3b8;
  font-size: 1.05rem;
}

.modes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.mode-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.mode-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
}

.mode-card.mode-1::before { background: var(--cyan-neon); box-shadow: 0 0 12px var(--cyan-neon); }
.mode-card.mode-2::before { background: var(--purple-neon); box-shadow: 0 0 12px var(--purple-neon); }
.mode-card.mode-3::before { background: var(--emerald-neon); box-shadow: 0 0 12px var(--emerald-neon); }

.mode-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 24px;
}

.mode-1 .mode-icon { background: rgba(6, 182, 212, 0.15); color: var(--cyan-neon); }
.mode-2 .mode-icon { background: rgba(139, 92, 246, 0.15); color: var(--purple-neon); }
.mode-3 .mode-icon { background: rgba(16, 185, 129, 0.15); color: var(--emerald-neon); }

.mode-card h3 {
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.mode-card p {
  color: #94a3b8;
  font-size: 0.95rem;
  margin-bottom: 24px;
  flex-grow: 1;
}

.mode-features {
  list-style: none;
  border-top: 1px solid var(--border-glass);
  padding-top: 20px;
}

.mode-features li {
  font-size: 0.88rem;
  color: #cbd5e1;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.mode-features li i {
  color: var(--cyan-neon);
}

/* ===================================================================
   SECTION: COMPARISON (TRƯỚC & SAU)
   =================================================================== */
.mobile-swipe-hint {
  display: none;
}

.comparison-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
}

.comparison-table th, .comparison-table td {
  padding: 20px 24px;
  text-align: left;
  border-bottom: 1px solid var(--border-glass);
}

.comparison-table th {
  background: rgba(30, 41, 59, 0.5);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
}

.comparison-table td:nth-child(2) {
  color: #94a3b8;
  background: rgba(0, 0, 0, 0.15);
}

.comparison-table td:nth-child(3) {
  color: #fff;
  font-weight: 600;
  background: rgba(6, 182, 212, 0.05);
}

.status-bad {
  color: var(--rose-neon);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.status-good {
  color: var(--emerald-neon);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* ===================================================================
   SECTION: PRICING (BẢNG GIÁ)
   =================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 36px 28px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  transition: var(--transition);
}

.pricing-card:hover {
  transform: translateY(-8px);
  border-color: rgba(255, 255, 255, 0.2);
}

.pricing-card.featured {
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.95) 100%);
  border: 2px solid var(--cyan-neon);
  box-shadow: 0 0 35px var(--cyan-glow);
  transform: scale(1.03);
}

.pricing-card.featured:hover {
  transform: scale(1.03) translateY(-8px);
}

.pricing-card.lifetime {
  border: 2px solid #f59e0b;
  box-shadow: 0 0 35px rgba(245, 158, 11, 0.25);
}

.pricing-single-container {
  max-width: 660px;
  margin: 0 auto;
  padding: 10px;
}

.pricing-card.single-plan {
  padding: 44px 38px;
  border: 2px solid rgba(245, 158, 11, 0.7);
  background: linear-gradient(180deg, rgba(26, 26, 42, 0.95) 0%, rgba(15, 17, 26, 0.98) 100%);
  box-shadow: 0 0 70px rgba(245, 158, 11, 0.25), 0 25px 60px rgba(0, 0, 0, 0.85);
  border-radius: var(--radius-lg);
  text-align: center;
  position: relative;
  transition: all 0.3s ease;
}

.pricing-card.single-plan:hover {
  border-color: #fbbf24;
  box-shadow: 0 0 90px rgba(245, 158, 11, 0.4), 0 30px 70px rgba(0, 0, 0, 0.95);
  transform: translateY(-4px);
}

.single-features {
  text-align: left;
  margin: 28px auto;
  max-width: 560px;
}

.single-features li {
  font-size: 1.02rem;
  color: #e2e8f0;
  padding: 9px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.single-buy-btn {
  width: 100%;
  font-size: 1.18rem;
  padding: 18px 24px;
  font-weight: 800;
  box-shadow: 0 0 35px rgba(245, 158, 11, 0.45);
  cursor: pointer;
}

.single-buy-btn:hover {
  box-shadow: 0 0 55px rgba(245, 158, 11, 0.75);
  transform: translateY(-2px);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--grad-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 5px 16px;
  border-radius: var(--radius-full);
  box-shadow: 0 0 15px var(--cyan-glow);
}

.pricing-header {
  margin-bottom: 24px;
  text-align: center;
}

.pricing-name {
  font-size: 1.3rem;
  margin-bottom: 8px;
}

.pricing-price {
  font-size: 2.4rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 4px;
  font-family: var(--font-heading);
}

.pricing-currency {
  font-size: 1.2rem;
  vertical-align: top;
  margin-right: 2px;
}

.pricing-period {
  font-size: 0.88rem;
  color: #64748b;
  font-weight: 500;
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-features li {
  font-size: 0.9rem;
  color: #cbd5e1;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
}

.pricing-features li i {
  color: var(--cyan-neon);
  margin-top: 3px;
}

.pricing-card.lifetime .pricing-features li i {
  color: #fbbf24;
}

/* ===================================================================
   SECTION: ACTIVATION STEPS (3 BƯỚC)
   =================================================================== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}

.step-card {
  text-align: center;
  padding: 36px 24px;
  position: relative;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 2px solid var(--cyan-neon);
  color: var(--cyan-neon);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px auto;
  box-shadow: 0 0 20px var(--cyan-glow);
}

.step-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.step-card p {
  color: #94a3b8;
  font-size: 0.95rem;
}

/* ===================================================================
   SECTION: FAQ ACCORDION
   =================================================================== */
.faq-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active {
  border-color: rgba(6, 182, 212, 0.4);
}

.faq-question {
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.08rem;
  color: #fff;
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--cyan-neon);
}

.faq-icon {
  font-size: 1.1rem;
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--cyan-neon);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0, 1, 0, 1);
  background: rgba(0, 0, 0, 0.2);
}

.faq-answer-inner {
  padding: 0 28px 22px 28px;
  color: #94a3b8;
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===================================================================
   MODAL: ORDER & VIETQR PAYMENT
   =================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(16px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  padding: 20px;
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.order-modal {
  background: #0b1120;
  border: 1px solid rgba(6, 182, 212, 0.4);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.95), 0 0 40px var(--cyan-glow);
  width: 100%;
  max-width: 860px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  transform: scale(0.95);
  transition: var(--transition);
}

.modal-overlay.open .order-modal {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: #94a3b8;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--transition);
}

.modal-close-btn:hover {
  background: #ef4444;
  color: #fff;
}

.modal-header {
  padding: 28px 36px 18px 36px;
  border-bottom: 1px solid var(--border-glass);
}

.modal-header h3 {
  font-size: 1.6rem;
  margin-bottom: 6px;
}

.modal-header p {
  color: #94a3b8;
  font-size: 0.9rem;
}

.modal-body {
  padding: 28px 36px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
}

/* Form Styles */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: #cbd5e1;
  margin-bottom: 6px;
}

.form-input, .form-select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(2, 6, 23, 0.8);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.92rem;
  transition: var(--transition);
}

.form-input:focus, .form-select:focus {
  outline: none;
  border-color: var(--cyan-neon);
  box-shadow: 0 0 10px var(--cyan-glow);
}

/* VietQR Payment Preview Box */
.qr-payment-box {
  background: #020617;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.qr-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--cyan-neon);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.qr-code-img {
  width: 200px;
  height: 200px;
  background: #ffffff;
  padding: 8px;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.8);
  margin-bottom: 16px;
}

.bank-info {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  padding: 12px;
  font-size: 0.82rem;
  text-align: left;
}

.bank-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
}

.bank-row:last-child {
  margin-bottom: 0;
}

.bank-label { color: #64748b; }
.bank-val { color: #fff; font-weight: 600; }

.copy-btn {
  background: transparent;
  border: none;
  color: var(--cyan-neon);
  cursor: pointer;
  margin-left: 6px;
  font-size: 0.85rem;
}

.copy-btn:hover {
  text-decoration: underline;
}

/* ===================================================================
   COUNTDOWN TOP BANNER
   =================================================================== */
.top-banner {
  background: linear-gradient(90deg, #f59e0b, #ec4899, #8b5cf6);
  color: #ffffff;
  padding: 8px 16px;
  font-size: 0.88rem;
  font-weight: 700;
  text-align: center;
  position: relative;
  z-index: 1001;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

.countdown-timer {
  background: rgba(0, 0, 0, 0.4);
  padding: 3px 10px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.95rem;
  letter-spacing: 1px;
}

/* ===================================================================
   SECTION: TESTIMONIALS (ĐÁNH GIÁ CỦA KHÁCH)
   =================================================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.testimonial-card {
  padding: 32px;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.testimonial-stars {
  color: #fbbf24;
  margin-bottom: 16px;
  font-size: 1.1rem;
}

.testimonial-text {
  color: #cbd5e1;
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 24px;
  flex-grow: 1;
  font-style: italic;
}

.testimonial-user {
  display: flex;
  align-items: center;
  gap: 14px;
  border-top: 1px solid var(--border-glass);
  padding-top: 18px;
}

.user-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--grad-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 1.2rem;
  border: 2px solid var(--cyan-neon);
}

.user-info h4 {
  font-size: 1.05rem;
  margin-bottom: 2px;
}

.user-info p {
  color: #64748b;
  font-size: 0.82rem;
}

/* ===================================================================
   FLOATING ACTION BUTTONS (ZALO & TELEGRAM)
   =================================================================== */
.floating-contacts {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 1500;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.float-btn {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 1.5rem;
  text-decoration: none;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.6);
  transition: var(--transition);
  position: relative;
}

.float-btn.zalo-btn {
  background: #0068ff;
  border: 2px solid #3b82f6;
  box-shadow: 0 0 20px rgba(0, 104, 255, 0.5);
  animation: float-pulse 2s infinite ease-in-out;
}

.float-btn.tele-btn {
  background: #0088cc;
  border: 2px solid #38bdf8;
  box-shadow: 0 0 20px rgba(0, 136, 204, 0.5);
}

.float-btn:hover {
  transform: scale(1.12) translateY(-4px);
}

.float-tooltip {
  position: absolute;
  right: 68px;
  background: #0f172a;
  border: 1px solid var(--border-glass);
  color: #fff;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
}

.float-btn:hover .float-tooltip {
  opacity: 1;
}

@keyframes float-pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.06); }
  100% { transform: scale(1); }
}

/* ===================================================================
   LIVE PURCHASE TOAST (SOCIAL PROOF)
   =================================================================== */
.live-toast {
  position: fixed;
  bottom: 28px;
  left: 28px;
  z-index: 1500;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(6, 182, 212, 0.4);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), 0 0 20px rgba(6, 182, 212, 0.2);
  backdrop-filter: blur(12px);
  transform: translateY(120%);
  opacity: 0;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  max-width: 380px;
}

.live-toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.15);
  color: var(--emerald-neon);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.toast-body {
  font-size: 0.84rem;
}

.toast-user {
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 2px;
}

.toast-detail {
  color: #94a3b8;
}

.toast-time {
  font-size: 0.74rem;
  color: #64748b;
  margin-top: 2px;
}

/* ===================================================================
   FOOTER
   =================================================================== */
.footer {
  background: #020617;
  border-top: 1px solid var(--border-glass);
  padding: 60px 0 30px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-about p {
  color: #64748b;
  font-size: 0.92rem;
  margin-top: 16px;
  max-width: 400px;
}

.footer-links h4 {
  font-size: 1.1rem;
  margin-bottom: 20px;
  color: #fff;
}

.footer-links ul {
  list-style: none;
}

.footer-links ul li {
  margin-bottom: 12px;
}

.footer-links ul li a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-links ul li a:hover {
  color: var(--cyan-neon);
  padding-left: 4px;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #64748b;
}

/* ===================================================================
   RESPONSIVE (MOBILE & TABLET)
   =================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-desc {
    margin: 0 auto 36px auto;
  }

  .hero-buttons {
    justify-content: center;
  }

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

  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .modal-body {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  /* Khung nền & Khoảng cách */
  .container {
    padding: 0 16px;
  }

  .section {
    padding: 50px 0;
  }

  .section-title {
    font-size: 1.85rem;
    line-height: 1.25;
  }

  .section-subtitle {
    font-size: 0.92rem;
    margin-bottom: 28px;
    padding: 0 8px;
  }

  /* 1. Top Countdown Banner */
  .top-banner {
    font-size: 0.78rem;
    padding: 8px 12px;
    flex-direction: column;
    gap: 6px;
    line-height: 1.4;
  }

  .countdown-timer {
    font-size: 0.85rem;
    padding: 2px 8px;
  }

  /* 2. Navbar */
  .navbar {
    padding: 10px 0 !important;
  }

  .nav-menu {
    display: none;
  }

  .brand-text {
    font-size: 1.15rem;
  }

  .brand-icon {
    width: 34px;
    height: 34px;
    font-size: 1rem;
  }

  .nav-actions .btn-sm {
    padding: 7px 12px;
    font-size: 0.78rem;
    letter-spacing: 0;
  }

  /* 3. Hero Section */
  .hero-section {
    padding: 30px 0 45px 0;
  }

  .hero-badge .badge {
    font-size: 0.7rem;
    padding: 5px 12px;
    white-space: normal;
    line-height: 1.35;
    text-align: center;
  }

  .hero-title {
    font-size: 1.95rem;
    line-height: 1.25;
    margin-bottom: 16px;
  }

  .hero-desc {
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 26px;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }

  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
    padding: 15px 20px;
    font-size: 1rem;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: 10px;
    margin-top: 28px;
  }

  .stat-item {
    padding: 12px 16px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
  }

  .stat-item h3 {
    font-size: 1.25rem;
  }

  /* 4. Mockup Studio Visual */
  .tool-mockup-wrapper {
    margin-top: 32px;
  }

  .mockup-header {
    padding: 10px 14px;
  }

  .mockup-title {
    font-size: 0.78rem;
  }

  .mockup-badge {
    font-size: 0.68rem;
    padding: 2px 8px;
  }

  .mockup-workflow-bar {
    font-size: 0.65rem;
    padding: 8px 10px;
  }

  .mockup-studio-grid {
    grid-template-columns: 1fr !important;
    gap: 12px;
    padding: 12px !important;
  }

  /* 5. 3 Chế Độ (Features) */
  .modes-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .mode-card {
    padding: 24px 18px;
  }

  .mode-title {
    font-size: 1.35rem;
  }

  /* 6. Bảng So Sánh (Comparison Table) */
  .mobile-swipe-hint {
    display: block !important;
  }

  .comparison-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--radius-md);
  }

  .comparison-table {
    min-width: 560px;
  }

  .comparison-table th, 
  .comparison-table td {
    padding: 12px 14px;
    font-size: 0.85rem;
  }

  /* 7. Bảng Giá Đơn (Single Plan 9.999.999đ) */
  .pricing-single-container {
    padding: 0;
  }

  .pricing-card.single-plan {
    padding: 34px 16px 24px 16px;
    border-radius: 16px;
  }

  .popular-badge {
    font-size: 0.68rem;
    padding: 4px 12px;
    width: 90%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .pricing-card.single-plan .pricing-name {
    font-size: 1.45rem !important;
    line-height: 1.3;
    margin-top: 14px;
  }

  .pricing-card.single-plan .pricing-price {
    font-size: 2.5rem !important;
    margin: 10px 0 !important;
  }

  .pricing-card.single-plan .pricing-period {
    font-size: 0.9rem !important;
    line-height: 1.4;
  }

  .single-features {
    margin: 20px 0;
  }

  .single-features li {
    font-size: 0.9rem;
    padding: 10px 0;
    line-height: 1.45;
  }

  .single-buy-btn {
    font-size: 1rem !important;
    padding: 16px 14px !important;
    border-radius: 12px;
    animation: mobile-pulse 2s infinite ease-in-out;
  }

  @keyframes mobile-pulse {
    0% { transform: scale(1); box-shadow: 0 0 20px rgba(245, 158, 11, 0.4); }
    50% { transform: scale(1.02); box-shadow: 0 0 35px rgba(245, 158, 11, 0.7); }
    100% { transform: scale(1); box-shadow: 0 0 20px rgba(245, 158, 11, 0.4); }
  }

  /* 8. Quy trình, Đánh giá, FAQ */
  .steps-grid, 
  .testimonials-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .step-card, 
  .testimonial-card {
    padding: 22px 18px;
  }

  .faq-question {
    padding: 16px 16px;
    font-size: 0.95rem;
  }

  .faq-answer-inner {
    padding: 0 16px 16px 16px;
    font-size: 0.9rem;
  }

  /* 9. Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  /* 10. Nút Nổi Zalo & Toast Thông Báo */
  .floating-contacts {
    bottom: 18px;
    right: 16px;
  }

  .float-btn.zalo-btn {
    width: 52px;
    height: 52px;
    font-size: 1.45rem;
  }

  .float-tooltip {
    display: none; /* Ẩn tooltip trên màn hình cảm ứng để tránh vướng víu */
  }

  .live-toast {
    bottom: 80px;
    left: 12px;
    right: 12px;
    max-width: calc(100% - 24px);
    padding: 10px 14px;
  }

  .toast-icon {
    width: 32px;
    height: 32px;
    font-size: 0.95rem;
  }

  .toast-user {
    font-size: 0.8rem;
  }

  .toast-detail {
    font-size: 0.78rem;
  }

  .toast-time {
    font-size: 0.7rem;
  }
}

/* Tối ưu riêng cho các dòng máy màn hình nhỏ (< 400px như iPhone SE, iPhone 12/13 mini, Galaxy A) */
@media (max-width: 400px) {
  .hero-title {
    font-size: 1.7rem;
  }

  .pricing-card.single-plan .pricing-price {
    font-size: 2.15rem !important;
  }

  .brand-text {
    font-size: 1.05rem;
  }

  .nav-actions .btn-sm {
    padding: 6px 10px;
    font-size: 0.72rem;
  }

  .single-buy-btn {
    font-size: 0.92rem !important;
  }
}

/* ===================================================================
   MOCKUP STUDIO TWO-COLUMN LAYOUT STYLING
   =================================================================== */
.mockup-workflow-bar {
  background: #0b0f19;
  padding: 6px 14px;
  font-size: 0.72rem;
  font-weight: 700;
  color: #64748b;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  justify-content: space-between;
  align-items: center;
  overflow-x: auto;
  white-space: nowrap;
}

.mockup-workflow-bar span.active {
  color: #38bdf8;
  text-shadow: 0 0 8px rgba(56, 189, 248, 0.5);
}

.mockup-studio-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 14px;
  padding: 16px !important;
}

@media (max-width: 580px) {
  .mockup-studio-grid {
    grid-template-columns: 1fr;
  }
}

.mockup-section-title {
  font-size: 0.72rem;
  font-weight: 800;
  color: #94a3b8;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.mini-mode-box {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  padding: 8px 10px;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.mini-mode-box.active {
  background: rgba(16, 185, 129, 0.12);
  border: 1.5px solid #10b981;
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.25);
}

.mini-mode-icon {
  font-size: 1rem;
}

.mini-mode-info {
  display: flex;
  flex-direction: column;
}

.mini-mode-info strong {
  font-size: 0.78rem;
  color: #f1f5f9;
}

.mini-mode-box.active .mini-mode-info strong {
  color: #34d399;
}

.mini-mode-info small {
  font-size: 0.68rem;
  color: #64748b;
}

.mini-path-box {
  background: rgba(2, 6, 23, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 6px;
  padding: 8px 10px;
  margin-top: 8px;
  font-size: 0.7rem;
  color: #94a3b8;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mini-path-box code {
  color: #38bdf8;
  font-family: 'Consolas', monospace;
}

.mini-queue-table {
  background: rgba(2, 6, 23, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  overflow: hidden;
}

.queue-row {
  display: grid;
  grid-template-columns: 20px 1fr auto;
  gap: 8px;
  align-items: center;
  padding: 6px 10px;
  font-size: 0.72rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.queue-row:last-child {
  border-bottom: none;
}

.queue-row.running {
  background: rgba(56, 189, 248, 0.08);
}

.badge-done {
  color: #4ade80;
  font-weight: 700;
  font-size: 0.68rem;
}

.badge-running {
  color: #38bdf8;
  font-weight: 700;
  font-size: 0.68rem;
}

.badge-pending {
  color: #64748b;
  font-size: 0.68rem;
}

.mockup-bottom-bar {
  background: #090d16;
  padding: 12px 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.mockup-progress-wrapper {
  margin-bottom: 10px;
}

.mockup-btn-start {
  width: 100%;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 10px;
  font-size: 0.85rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}