/* ========================================
   BACKTRACE - MODERN DESIGN SYSTEM
   Primary Color: #FF5722 (Brand Orange)
   ======================================== */

:root {
  /* Brand Colors */
  --bt-orange: #FF5722;
  --bt-orange-dark: #E64A19;
  --bt-orange-light: #FF7043;
  --bt-orange-lighter: #FFCCBC;

  /* Neutrals */
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;

  /* Semantic Colors */
  --text-primary: #111827;
  --text-secondary: #4B5563;
  --bg-primary: #FFFFFF;
  --bg-secondary: #F9FAFB;

  /* Spacing Scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Typography Scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   GLOBAL RESETS & BASE STYLES
   ======================================== */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

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

a:hover {
  color: var(--bt-orange-dark);
}

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

/* ========================================
   HEADER & NAVIGATION
   ======================================== */

.site-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-sm) var(--space-lg);
}

.logo {
  width: 180px;
  height: auto;
  transition: transform var(--transition-base);
}

.logo:hover {
  transform: scale(1.02);
}

.nav-menu {
  list-style: none;
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.nav-menu li a {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--gray-700);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-menu li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--bt-orange);
  transform: translateX(-50%);
  transition: width var(--transition-base);
}

.nav-menu li a:hover {
  color: var(--bt-orange);
  background: var(--bt-orange-lighter);
}

.nav-menu li a:hover::after {
  width: 80%;
}

/* ========================================
   PAGE CONTAINER
   ======================================== */

.page-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ========================================
   VIDEO HERO SECTION - Fortune 500 Style
   ======================================== */

.video-hero {
  position: relative;
  min-height: 70vh;
  max-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #000;
}

.video-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
}

.video-background video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%);
  object-fit: cover;
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(0, 0, 0, 0.7) 0%,
    rgba(255, 87, 34, 0.3) 50%,
    rgba(0, 0, 0, 0.7) 100%
  );
  z-index: 1;
}

.video-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: white;
  max-width: 1000px;
  padding: var(--space-md);
  animation: fadeInUp 1s ease-out;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  padding: 0.25rem 0.75rem;
  margin-bottom: var(--space-sm);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge-icon {
  color: var(--bt-orange);
  font-size: var(--text-lg);
}

.hero-title {
  font-size: clamp(1.75rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, #FFFFFF 0%, var(--bt-orange-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-md);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta-group {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.cta-primary {
  background: linear-gradient(135deg, var(--bt-orange) 0%, var(--bt-orange-dark) 100%);
  color: white;
  box-shadow: 0 10px 30px rgba(255, 87, 34, 0.4);
}

.cta-primary:hover {
  box-shadow: 0 15px 40px rgba(255, 87, 34, 0.6);
  transform: translateY(-3px);
}

.cta-secondary {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.cta-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-3px);
}

.scroll-indicator {
  display: none;
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-10px); }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(10px); }
}

/* ========================================
   STATS SECTION
   ======================================== */

.stats-section {
  background: white;
  padding: var(--space-lg) var(--space-md);
  border-bottom: 1px solid var(--gray-200);
  position: relative;
  z-index: 10;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-md);
  max-width: 1200px;
  margin: 0 auto;
}

.stat-item {
  text-align: center;
  padding: var(--space-sm);
}

.stat-number {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--bt-orange);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  font-weight: 500;
}

/* ========================================
   WHY CHOOSE US SECTION
   ======================================== */

.why-section {
  background: var(--bg-secondary);
  padding: var(--space-lg) var(--space-md);
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-lg);
}

.section-tag {
  display: inline-block;
  background: var(--bt-orange-lighter);
  color: var(--bt-orange-dark);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

.section-header h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--gray-900);
  margin-bottom: var(--space-sm);
  line-height: 1.2;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-md);
  max-width: 1200px;
  margin: 0 auto;
}

.why-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.why-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--bt-orange), var(--bt-orange-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.why-card:hover::before {
  transform: scaleX(1);
}

.why-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

.why-icon {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.why-card h3 {
  font-size: var(--text-lg);
  color: var(--gray-900);
  margin-bottom: var(--space-sm);
}

.why-card p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ========================================
   PREMIUM SERVICES SHOWCASE
   ======================================== */

.services-showcase {
  background: white;
  padding: var(--space-lg) var(--space-md);
}

.services-premium-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
  max-width: 1200px;
  margin: 0 auto;
}

.service-premium-card {
  background: linear-gradient(135deg, var(--gray-50) 0%, white 100%);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
}

.service-premium-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--bt-orange) 0%, var(--bt-orange-dark) 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: 0;
}

.service-premium-card:hover::before {
  opacity: 0.05;
}

.service-premium-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-2xl);
  border-color: var(--bt-orange-lighter);
}

.service-premium-icon {
  width: 50px;
  height: 50px;
  background: white;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-sm);
  box-shadow: var(--shadow-sm);
  position: relative;
  z-index: 1;
}

.service-premium-icon img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.service-premium-card h3 {
  font-size: var(--text-lg);
  color: var(--gray-900);
  margin-bottom: var(--space-sm);
  position: relative;
  z-index: 1;
}

.service-premium-card p {
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
  margin-bottom: var(--space-lg);
  position: relative;
  z-index: 1;
}

.service-link {
  color: var(--bt-orange);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  position: relative;
  z-index: 1;
  transition: gap var(--transition-base);
}

.service-premium-card:hover .service-link {
  gap: var(--space-sm);
}

/* ========================================
   CTA SECTION
   ======================================== */

.cta-section {
  background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
  padding: var(--space-lg) var(--space-md);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(255, 87, 34, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.cta-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.cta-content h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: white;
  margin-bottom: var(--space-sm);
}

.cta-content p {
  font-size: var(--text-xl);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-2xl);
}

.cta-large {
  padding: 1.25rem 3rem;
  font-size: var(--text-xl);
}

/* ========================================
   OLD HERO SECTION (Fallback)
   ======================================== */

.hero-section {
  background: linear-gradient(135deg, #FFFFFF 0%, var(--gray-50) 100%);
  padding: var(--space-lg) 0;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(circle at top right, rgba(255, 87, 34, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text {
  animation: fadeInUp 0.8s ease-out;
}

.subtext {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--bt-orange);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
  padding: var(--space-xs) var(--space-md);
  background: var(--bt-orange-lighter);
  border-radius: var(--radius-full);
}

.hero-text h1 {
  font-size: var(--text-5xl);
  color: var(--gray-900);
  margin-bottom: var(--space-md);
  line-height: 1.1;
}

.hero-text p {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.hero-text strong {
  color: var(--bt-orange);
  font-weight: 600;
}

.hero-image {
  animation: fadeInRight 0.8s ease-out 0.2s backwards;
  position: relative;
  max-width: 400px;
  margin: 0 auto;
}

.hero-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-slow);
}

.hero-image:hover img {
  transform: scale(1.02) rotate(-1deg);
}

/* CTA Button */
.cta-button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--bt-orange) 0%, var(--bt-orange-dark) 100%);
  color: white;
  font-size: var(--text-lg);
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.cta-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.5s;
}

.cta-button:hover::before {
  left: 100%;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.cta-button:active {
  transform: translateY(0);
}

/* ========================================
   SERVICES SECTION
   ======================================== */

.services-section {
  background: var(--bg-secondary);
  padding: var(--space-xl) var(--space-lg);
  position: relative;
}

.services-section h2 {
  text-align: center;
  color: var(--gray-900);
  margin-bottom: var(--space-2xl);
  position: relative;
  display: inline-block;
  left: 50%;
  transform: translateX(-50%);
}

.services-section h2::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--bt-orange), var(--bt-orange-light));
  border-radius: var(--radius-full);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-md);
  max-width: 1100px;
  margin: 0 auto;
}

.service-item {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-sm);
  border: 2px solid transparent;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.service-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--bt-orange) 0%, var(--bt-orange-dark) 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: 0;
}

.service-item:hover::before {
  opacity: 1;
}

.service-item img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  transition: transform var(--transition-base);
  position: relative;
  z-index: 1;
  filter: grayscale(0);
}

.service-item:hover img {
  transform: scale(1.1) rotate(5deg);
  filter: brightness(0) invert(1);
}

.service-item span {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--gray-900);
  position: relative;
  z-index: 1;
  transition: color var(--transition-base);
}

.service-item:hover span {
  color: white;
}

.service-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
  border-color: var(--bt-orange);
}

/* ========================================
   SPLIT HERO (Service Pages)
   ======================================== */

.split-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 30vh;
  background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
  position: relative;
  overflow: hidden;
}

.split-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at bottom left, rgba(255, 87, 34, 0.2) 0%, transparent 60%);
  pointer-events: none;
}

.split-hero .hero-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-lg) var(--space-2xl);
  position: relative;
  z-index: 1;
}

.split-hero .hero-text h1 {
  font-size: var(--text-4xl);
  color: white;
  margin-bottom: var(--space-sm);
}

.split-hero .hero-text p {
  font-size: var(--text-lg);
  color: var(--gray-300);
  line-height: 1.6;
}

.split-hero .hero-image {
  position: relative;
  overflow: hidden;
  max-height: 300px;
}

.split-hero .hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.9;
  transition: transform var(--transition-slow);
  max-height: 300px;
}

.split-hero .hero-image:hover img {
  transform: scale(1.05);
}

/* ========================================
   TOPIC CARDS (Feature Grid)
   ======================================== */

.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
  max-width: 1200px;
  margin: var(--space-lg) auto;
  padding: 0 var(--space-lg);
}

.topic-card {
  background: white;
  border-radius: var(--radius-md);
  padding: var(--space-md);
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.topic-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: linear-gradient(180deg, var(--bt-orange), var(--bt-orange-dark));
  transition: height var(--transition-base);
}

.topic-card:hover::before {
  height: 100%;
}

.topic-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--bt-orange-lighter);
}

.topic-card img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.topic-card:hover img {
  transform: scale(1.1);
}

.topic-card span {
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--text-primary);
}

.topic-card strong {
  display: block;
  font-size: var(--text-base);
  color: var(--bt-orange);
  margin-bottom: var(--space-xs);
}

/* ========================================
   SUPPORT/FAQ CTA SECTION
   ======================================== */

.support-faq {
  background: linear-gradient(135deg, var(--bt-orange) 0%, var(--bt-orange-dark) 100%);
  padding: var(--space-3xl) var(--space-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.support-faq::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 40%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.support-faq h2 {
  color: white;
  margin-bottom: var(--space-md);
  position: relative;
  z-index: 1;
}

.support-faq p {
  color: rgba(255, 255, 255, 0.95);
  font-size: var(--text-xl);
  max-width: 700px;
  margin: 0 auto var(--space-xl);
  position: relative;
  z-index: 1;
}

.support-faq .cta-button {
  background: white;
  color: var(--bt-orange);
  position: relative;
  z-index: 1;
}

.support-faq .cta-button:hover {
  background: var(--gray-100);
  color: var(--bt-orange-dark);
}

/* ========================================
   CONTACT PAGE
   ======================================== */

.support-hero {
  background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
  padding: var(--space-lg) var(--space-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.support-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(255, 87, 34, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.support-hero h1 {
  color: white;
  margin-bottom: var(--space-md);
  position: relative;
  z-index: 1;
}

.support-hero p {
  color: var(--gray-300);
  font-size: var(--text-xl);
  max-width: 700px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.contact-section {
  background: var(--bg-secondary);
  padding: var(--space-3xl) var(--space-lg);
}

.contact-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-2xl);
  max-width: 1100px;
  margin: 0 auto;
}

.contact-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
}

.contact-card:hover {
  box-shadow: var(--shadow-2xl);
  transform: translateY(-4px);
}

.contact-card h2 {
  color: var(--bt-orange);
  margin-bottom: var(--space-md);
  font-size: var(--text-3xl);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  font-family: inherit;
  margin-bottom: var(--space-md);
  transition: all var(--transition-fast);
  background: var(--bg-primary);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--bt-orange);
  box-shadow: 0 0 0 3px rgba(255, 87, 34, 0.1);
}

.contact-form textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form button {
  width: 100%;
  cursor: pointer;
}

.contact-form label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: var(--space-xs);
}

/* ========================================
   FOOTER
   ======================================== */

.site-footer {
  background: var(--gray-900);
  color: white;
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--bt-orange);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--bt-orange-light);
  text-decoration: underline;
}

.footer-links .divider {
  color: var(--gray-600);
  user-select: none;
}

.site-footer p {
  color: var(--gray-300);
  font-size: var(--text-sm);
}

/* ========================================
   CONTENT SECTIONS (Detailed Pages)
   ======================================== */

.content-section {
  background: white;
  padding: var(--space-2xl) var(--space-lg);
}

.content-section h2 {
  text-align: center;
  color: var(--gray-900);
  margin-bottom: var(--space-md);
  font-size: var(--text-4xl);
}

.section-intro {
  text-align: center;
  font-size: var(--text-xl);
  color: var(--text-secondary);
  max-width: 900px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.8;
}

.content-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
  max-width: 1000px;
  margin: 0 auto;
}

.content-block {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  border: 1px solid var(--gray-200);
}

.content-block h3 {
  color: var(--bt-orange);
  margin-bottom: var(--space-md);
  font-size: var(--text-3xl);
}

.content-block h4 {
  color: var(--gray-900);
  margin-bottom: var(--space-sm);
  font-size: var(--text-xl);
}

.content-block p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.content-block ul {
  list-style: none;
  padding: 0;
  margin: var(--space-md) 0;
}

.content-block ul li {
  padding: var(--space-xs) 0;
  padding-left: var(--space-lg);
  position: relative;
  color: var(--text-primary);
  line-height: 1.6;
}

.content-block ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--bt-orange);
  font-weight: bold;
}

.comparison-box,
.highlight-box {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
  border-left: 4px solid var(--bt-orange);
  box-shadow: var(--shadow-sm);
}

.comparison-box h4,
.highlight-box h4 {
  color: var(--bt-orange);
  margin-bottom: var(--space-sm);
  font-size: var(--text-xl);
}

.comparison-box p,
.highlight-box p {
  margin-bottom: var(--space-sm);
}

.comparison-box ul,
.highlight-box ul {
  margin-top: var(--space-md);
}

/* ========================================
   ANIMATIONS
   ======================================== */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 1024px) {
  :root {
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --text-3xl: 1.75rem;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .split-hero {
    grid-template-columns: 1fr;
  }

  .split-hero .hero-image {
    min-height: 400px;
  }
}

@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    gap: var(--space-md);
    padding: var(--space-md);
  }

  .logo {
    width: 220px;
  }

  .nav-menu {
    flex-direction: column;
    gap: var(--space-sm);
    width: 100%;
  }

  .nav-menu li {
    width: 100%;
    text-align: center;
  }

  .nav-menu li a {
    display: block;
    width: 100%;
  }

  .hero-section {
    padding: var(--space-2xl) 0;
  }

  .hero-text h1 {
    font-size: var(--text-4xl);
  }

  .services-grid {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--space-md);
  }

  .topic-grid {
    grid-template-columns: 1fr;
    padding: 0 var(--space-md);
  }

  .split-hero .hero-text {
    padding: var(--space-2xl) var(--space-md);
  }

  .split-hero .hero-text h1 {
    font-size: var(--text-4xl);
  }

  .contact-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --text-5xl: 2rem;
    --text-4xl: 1.75rem;
    --text-3xl: 1.5rem;
  }

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

  .service-item {
    padding: var(--space-lg);
  }

  .hero-text h1 {
    font-size: var(--text-3xl);
  }

  .cta-button {
    width: 100%;
    justify-content: center;
  }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.pt-sm { padding-top: var(--space-sm); }
.pt-md { padding-top: var(--space-md); }
.pt-lg { padding-top: var(--space-lg); }
.pt-xl { padding-top: var(--space-xl); }

.pb-sm { padding-bottom: var(--space-sm); }
.pb-md { padding-bottom: var(--space-md); }
.pb-lg { padding-bottom: var(--space-lg); }
.pb-xl { padding-bottom: var(--space-xl); }