/* ==========================================================================
   ĐỖ GIA ĐẠT - LANDING PAGE STYLESHEET
   Design Theme: Tech Dark Mode, Glassmorphism, Glowing Accents, High Contrast
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. DESIGN TOKENS & VARIABLES
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette */
  --bg-dark: #070714;
  --bg-card: rgba(18, 18, 42, 0.65);
  --bg-card-hover: rgba(28, 28, 62, 0.85);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-border-glow: rgba(120, 100, 255, 0.5);

  --primary: #6c5ce7;
  --primary-light: #a29bfe;
  --primary-dark: #4834d4;
  
  --secondary: #00cec9;
  --secondary-glow: rgba(0, 206, 201, 0.4);

  --accent-purple: #8e44ad;
  --accent-cyan: #0984e3;
  --accent-pink: #fd79a8;

  --zalo-blue: #0088ff;
  --zalo-hover: #0066cc;

  --text-main: #f5f6fa;
  --text-muted: #a0a5c0;
  --text-dim: #6c7293;

  /* Fonts */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Shadow & Glow Effects */
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
  --glow-primary: 0 0 25px rgba(108, 92, 231, 0.45);
  --glow-zalo: 0 0 20px rgba(0, 136, 255, 0.5);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
}

/* --------------------------------------------------------------------------
   2. GLOBAL RESET & BASE STYLES
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.text-center { text-align: center; }
.text-accent { color: var(--secondary); }
.text-purple { color: var(--primary-light); }
.text-cyan { color: var(--secondary); }
.text-success { color: #00b894; }

:focus-visible {
  outline: 3px solid var(--secondary);
  outline-offset: 4px;
}

[hidden] {
  display: none !important;
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   3. BACKGROUND ANIMATED MESH GLOW
   -------------------------------------------------------------------------- */
.bg-glow-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
  animation: floatOrb 20s infinite alternate ease-in-out;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #6c5ce7 0%, rgba(0,0,0,0) 70%);
  top: -150px;
  left: -150px;
}

.orb-2 {
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, #00cec9 0%, rgba(0,0,0,0) 70%);
  bottom: -200px;
  right: -150px;
  animation-delay: -7s;
}

.orb-3 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #8e44ad 0%, rgba(0,0,0,0) 70%);
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -14s;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -60px) scale(1.1); }
  100% { transform: translate(-50px, 50px) scale(0.9); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 20%, transparent 100%);
}

/* --------------------------------------------------------------------------
   4. NAVIGATION BAR
   -------------------------------------------------------------------------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 18px 0;
  transition: var(--transition-smooth);
}

.navbar.scrolled {
  padding: 12px 0;
  background: rgba(7, 7, 20, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

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

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

.logo-img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(108, 92, 231, 0.5);
}

.logo-img-sm {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: 8px;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, #ffffff 0%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 6px 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: var(--transition-smooth);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-cta-wrapper {
  display: flex;
  align-items: center;
  gap: 16px;
}

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  font-size: 1.25rem;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* --------------------------------------------------------------------------
   5. BUTTONS & BADGES
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: none;
  transition: var(--transition-smooth);
  white-space: nowrap;
}

.btn-sm {
  padding: 10px 18px;
  font-size: 0.88rem;
}

.btn-md {
  padding: 12px 24px;
  font-size: 0.95rem;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.05rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #ffffff;
  box-shadow: var(--glow-primary);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(108, 92, 231, 0.6);
}

.btn-zalo {
  background: linear-gradient(135deg, var(--zalo-blue) 0%, #0055b3 100%);
  color: #ffffff;
  box-shadow: var(--glow-zalo);
}

.btn-zalo:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 136, 255, 0.7);
}

.btn-zalo-lg {
  padding: 18px 36px;
  font-size: 1.15rem;
  font-family: var(--font-heading);
  font-weight: 700;
  background: linear-gradient(135deg, var(--zalo-blue) 0%, #004499 100%);
  color: #ffffff;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 35px rgba(0, 136, 255, 0.6);
}

.btn-zalo-lg:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 15px 45px rgba(0, 136, 255, 0.8);
}

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

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--primary-light);
  transform: translateY(-2px);
}

.btn-card {
  width: 100%;
  padding: 12px 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--glass-border);
  color: #ffffff;
  font-size: 0.9rem;
}

.btn-card:hover {
  background: var(--primary);
  border-color: var(--primary);
  box-shadow: var(--glow-primary);
}

.btn-block {
  width: 100%;
}

.btn-table {
  padding: 6px 14px;
  font-size: 0.82rem;
  background: var(--primary);
  color: white;
  border-radius: 6px;
  font-weight: 600;
}

.btn-table:hover {
  background: var(--primary-dark);
  box-shadow: var(--glow-primary);
}

.glow-pulse {
  animation: pulseGlow 2.5s infinite;
}

@keyframes pulseGlow {
  0% { box-shadow: 0 0 0 0 rgba(0, 136, 255, 0.6); }
  70% { box-shadow: 0 0 0 20px rgba(0, 136, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 136, 255, 0); }
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 50px;
  background: rgba(108, 92, 231, 0.15);
  border: 1px solid rgba(108, 92, 231, 0.4);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-light);
  margin-bottom: 20px;
}

.badge-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--secondary);
  box-shadow: 0 0 10px var(--secondary);
  animation: blink 1.5s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 20%, var(--primary-light) 60%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* --------------------------------------------------------------------------
   6. HERO SECTION
   -------------------------------------------------------------------------- */
.hero-section {
  padding: 160px 0 90px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 50px;
  align-items: center;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 580px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--glass-border);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--secondary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--glass-border);
}

/* Hero Visual */
.hero-visual {
  position: relative;
}

.visual-card-frame {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
}

.hero-main-img {
  width: 100%;
  border-radius: var(--radius-md);
  object-fit: cover;
  transition: var(--transition-smooth);
}

.floating-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  background: rgba(18, 18, 42, 0.9);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(16px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  font-size: 0.85rem;
  z-index: 2;
  animation: floatBadge 6s infinite ease-in-out alternate;
}

.floating-badge i {
  font-size: 1.5rem;
}

.floating-badge div {
  display: flex;
  flex-direction: column;
}

.floating-badge strong {
  color: #ffffff;
  font-size: 0.9rem;
}

.floating-badge span {
  color: var(--text-muted);
  font-size: 0.78rem;
}

.badge-top-right {
  top: -20px;
  right: -20px;
}

.badge-bottom-left {
  bottom: -20px;
  left: -20px;
  animation-delay: -3s;
}

@keyframes floatBadge {
  0% { transform: translateY(0); }
  100% { transform: translateY(-12px); }
}

/* --------------------------------------------------------------------------
   7. SECTIONS & HEADERS
   -------------------------------------------------------------------------- */
.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  max-width: 720px;
  margin: 0 auto 60px;
}

.section-tag {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--secondary);
  text-transform: uppercase;
  margin-bottom: 12px;
  display: inline-block;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-description {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   8. SERVICES CARDS GRID
   -------------------------------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-bottom: 50px;
}

.service-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(12px);
  transition: var(--transition-smooth);
}

.service-card:hover {
  transform: translateY(-8px);
  background: var(--bg-card-hover);
  border-color: var(--glass-border-glow);
  box-shadow: 0 20px 40px rgba(108, 92, 231, 0.25);
}

.featured-card {
  background: rgba(108, 92, 231, 0.15);
  border-color: rgba(108, 92, 231, 0.5);
  box-shadow: 0 10px 30px rgba(108, 92, 231, 0.2);
}

.card-badge {
  position: absolute;
  top: 18px;
  right: 18px;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-muted);
}

.badge-featured {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: #ffffff;
}

.card-icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
  color: #ffffff;
}

.icon-ai { background: linear-gradient(135deg, #a29bfe 0%, #6c5ce7 100%); }
.icon-web { background: linear-gradient(135deg, #00cec9 0%, #0984e3 100%); }
.icon-maintenance { background: linear-gradient(135deg, #fd79a8 0%, #e84393 100%); }
.icon-tools { background: linear-gradient(135deg, #ffeaa7 0%, #fdcb6e 100%); color: #2d3436; }
.icon-task { background: linear-gradient(135deg, #55efc4 0%, #00b894 100%); color: #2d3436; }

.card-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.card-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex-grow: 1;
}

.card-price-box {
  padding: 12px 14px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
}

.price-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.price-value {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--secondary);
}

.highlight-price {
  color: #ffffff;
  font-size: 1.35rem;
}

.price-value small {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-muted);
}

.card-features {
  list-style: none;
  font-size: 0.83rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.card-features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.card-features li i {
  margin-top: 3px;
}

.overview-banner-box {
  margin-top: 40px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-lg);
}

.overview-img {
  width: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

/* --------------------------------------------------------------------------
   9. SERVICE DETAILS TABS & ACCORDION
   -------------------------------------------------------------------------- */
.service-details-section {
  background: rgba(10, 10, 30, 0.5);
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
}

.detail-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.tab-btn {
  padding: 14px 22px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 10px;
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

.tab-btn.active {
  background: var(--primary);
  border-color: var(--primary-light);
  color: #ffffff;
  box-shadow: var(--glow-primary);
}

.tab-content {
  display: none;
  animation: fadeIn 0.4s ease;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  backdrop-filter: blur(16px);
}

.detail-text {
  display: flex;
  flex-direction: column;
}

.detail-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.detail-text h3 {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.detail-text p {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 24px;
}

.pricing-cards-sub {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 28px;
}

.sub-price-card {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 18px;
}

.sub-price-card.popular {
  border-color: var(--primary-light);
  background: rgba(108, 92, 231, 0.15);
}

.sub-card-title {
  font-weight: 700;
  font-size: 0.92rem;
  margin-bottom: 6px;
  color: #ffffff;
}

.sub-card-price {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 8px;
}

.sub-card-price small {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.sub-price-card p {
  font-size: 0.8rem;
  margin: 0;
  color: var(--text-muted);
}

.package-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 28px;
}

.pkg-box {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 20px;
}

.pkg-box.highlight {
  border-color: var(--secondary);
  background: rgba(0, 206, 201, 0.08);
}

.pkg-box h4 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.pkg-price {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 14px;
}

.pkg-box ul {
  list-style: none;
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.pkg-box ul li {
  display: flex;
  align-items: flex-start;
  gap: 6px;
}

.pkg-box ul li i {
  color: var(--secondary);
  margin-top: 3px;
}

.feature-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 28px;
}

.feature-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.feature-checklist li i {
  font-size: 1.4rem;
  margin-top: 2px;
}

.feature-checklist li strong {
  display: block;
  font-size: 0.98rem;
  color: #ffffff;
  margin-bottom: 2px;
}

.feature-checklist li p {
  font-size: 0.85rem;
  margin: 0;
  color: var(--text-muted);
}

.tools-grid-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 28px;
}

.tool-item {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--glass-border);
  padding: 14px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  font-weight: 600;
}

.tool-item i {
  font-size: 1.2rem;
  color: var(--primary-light);
}

.tool-item.full-width {
  grid-column: span 2;
  background: rgba(108, 92, 231, 0.15);
  border-color: var(--primary-light);
}

.price-highlight-banner {
  background: rgba(0, 206, 201, 0.12);
  border: 1px solid var(--secondary);
  padding: 16px 20px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.banner-label {
  font-weight: 600;
  font-size: 0.95rem;
}

.banner-amount {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--secondary);
}

.task-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.task-features-list i {
  color: var(--secondary);
  margin-right: 6px;
}

.detail-image-box {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-lg);
  cursor: pointer;
}

.detail-image-box img {
  width: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.detail-image-box:hover img {
  transform: scale(1.03);
}

.image-click-hint {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  color: #ffffff;
  font-size: 0.78rem;
  padding: 6px 12px;
  border-radius: 20px;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   10. PRICING TABLE SECTION
   -------------------------------------------------------------------------- */
.pricing-table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.pricing-table th, .pricing-table td {
  padding: 18px 24px;
  border-bottom: 1px solid var(--glass-border);
}

.pricing-table th {
  background: rgba(255, 255, 255, 0.05);
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-main);
}

.pricing-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

.price-tag {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-main);
}

.price-tag.highlight {
  color: var(--secondary);
  font-size: 1.05rem;
}

/* --------------------------------------------------------------------------
   11. WHY CHOOSE US
   -------------------------------------------------------------------------- */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.benefit-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  backdrop-filter: blur(10px);
  transition: var(--transition-smooth);
}

.benefit-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-light);
  box-shadow: 0 15px 35px rgba(108, 92, 231, 0.2);
}

.benefit-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(108, 92, 231, 0.2) 0%, rgba(0, 206, 201, 0.2) 100%);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--secondary);
}

.benefit-card h4 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.benefit-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   12. CALL TO ACTION & CONTACT
   -------------------------------------------------------------------------- */
.cta-banner-wrapper {
  background: linear-gradient(135deg, rgba(18, 18, 50, 0.9) 0%, rgba(7, 7, 24, 0.95) 100%);
  border: 1px solid var(--glass-border-glow);
  border-radius: var(--radius-lg);
  padding: 60px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
  margin-bottom: 50px;
}

.cta-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.cta-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--secondary);
  background: rgba(0, 206, 201, 0.1);
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.cta-title {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.cta-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 36px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  padding: 16px 20px;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.contact-item:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--secondary);
  transform: translateX(6px);
}

.contact-icon {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #ffffff;
}

.icon-zalo { background: var(--zalo-blue); }
.icon-email { background: var(--primary); }

.contact-label {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.contact-value {
  font-size: 1.1rem;
  color: #ffffff;
}

.cta-visual-box {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-lg);
}

.cta-banner-img {
  width: 100%;
  object-fit: cover;
}

.social-connect-banner {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-lg);
}

.social-banner-img {
  width: 100%;
  object-fit: cover;
}

/* --------------------------------------------------------------------------
   13. FOOTER
   -------------------------------------------------------------------------- */
.footer {
  background: #04040a;
  border-top: 1px solid var(--glass-border);
  padding: 50px 0 30px;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-top: 10px;
}

.footer-contact-summary {
  display: flex;
  gap: 30px;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.footer-contact-summary a {
  color: #ffffff;
  font-weight: 600;
}

.footer-contact-summary a:hover {
  color: var(--secondary);
}

.footer-bottom {
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  width: 100%;
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* --------------------------------------------------------------------------
   14. FLOATING ZALO WIDGET
   -------------------------------------------------------------------------- */
.floating-zalo-widget {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
}

.zalo-float-btn {
  display: flex;
  align-items: center;
  position: relative;
  background: var(--zalo-blue);
  color: #ffffff;
  padding: 6px;
  border-radius: 50px;
  box-shadow: var(--glow-zalo);
  transition: var(--transition-smooth);
}

.zalo-icon-box {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
}

.zalo-tooltip {
  font-size: 0.88rem;
  padding: 0 16px 0 8px;
  white-space: nowrap;
}

.pulse-ring {
  position: absolute;
  inset: 0;
  border-radius: 50px;
  border: 2px solid var(--zalo-blue);
  animation: ringPulse 2s infinite;
  pointer-events: none;
}

@keyframes ringPulse {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.4); opacity: 0; }
}

.zalo-float-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 10px 30px rgba(0, 136, 255, 0.8);
}

/* --------------------------------------------------------------------------
   15. LIGHTBOX MODAL
   -------------------------------------------------------------------------- */
.lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.lightbox-modal.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(12px);
}

.lightbox-container {
  position: relative;
  z-index: 2001;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-image {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8);
  border: 1px solid var(--glass-border);
}

.lightbox-close {
  position: absolute;
  top: -45px;
  right: 0;
  background: transparent;
  border: none;
  color: #ffffff;
  font-size: 2.5rem;
  cursor: pointer;
}

.lightbox-caption {
  margin-top: 14px;
  color: #ffffff;
  font-size: 0.95rem;
  text-align: center;
}

/* --------------------------------------------------------------------------
   16. RESPONSIVE BREAKPOINTS
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-grid, .cta-grid, .detail-grid {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 2.6rem;
  }

  .floating-badge {
    display: none;
  }

  .services-grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 30, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 30px;
    gap: 20px;
    border-bottom: 1px solid var(--glass-border);
    transform: translateY(-150%);
    transition: var(--transition-smooth);
  }

  .nav-links.mobile-active {
    transform: translateY(0);
  }

  .mobile-menu-toggle {
    display: block;
  }

  .hero-section {
    padding: 120px 0 60px;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .detail-grid {
    padding: 24px;
  }

  .pricing-cards-sub, .package-comparison, .tools-grid-box {
    grid-template-columns: 1fr;
  }

  .tool-item.full-width {
    grid-column: span 1;
  }

  .cta-banner-wrapper {
    padding: 30px 20px;
  }

  .cta-title {
    font-size: 2rem;
  }

  .footer-contact-summary {
    flex-direction: column;
    gap: 10px;
  }

  .zalo-tooltip {
    display: none;
  }

  .zalo-float-btn {
    padding: 0;
  }

  .zalo-icon-box {
    width: 56px;
    height: 56px;
  }
}

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

  .nav-cta-wrapper .btn-zalo {
    display: none;
  }

  .hero-actions,
  .hero-actions .btn,
  .cta-button-group .btn {
    width: 100%;
  }

  .btn {
    white-space: normal;
    text-align: center;
  }

  .hero-stats {
    gap: 12px;
    justify-content: space-between;
  }

  .stat-number {
    font-size: 1.35rem;
  }

  .stat-label {
    font-size: 0.72rem;
  }

  .contact-value {
    font-size: 0.9rem;
    overflow-wrap: anywhere;
  }

  .price-highlight-banner {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}