/* ============================================
   Seoul Technologies — Design System
   Modern, Premium, SEO-Friendly, Mobile-First
   ============================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800&display=swap');

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */
:root {
    /* Primary Palette */
    --navy: #0a1628;
    --navy-light: #142240;
    --navy-mid: #1a2d50;
    --blue-primary: #1e6fff;
    --blue-hover: #4488ff;
    --blue-glow: rgba(30, 111, 255, 0.3);
    --cyan: #00c9db;
    --cyan-glow: rgba(0, 201, 219, 0.25);
    /* Accent Colors */
    --accent-gradient: linear-gradient(135deg, #1e6fff 0%, #00c9db 100%);
    --accent-gradient-hover: linear-gradient(135deg, #4488ff 0%, #33d6e3 100%);
    --glass-bg: rgba(255, 255, 255, 0.04);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-bg-hover: rgba(255, 255, 255, 0.08);
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a0b4d0;
    --text-muted: #6b7f9e;
    --text-dark: #0a1628;
    --text-dark-secondary: #4a5568;
    /* Surface Colors */
    --surface-dark: #0d1b2a;
    --surface-card: rgba(20, 34, 64, 0.6);
    --surface-light: #f0f4f8;
    --surface-white: #ffffff;
    /* Spacing Scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --fs-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8rem);
    --fs-sm: clamp(0.85rem, 0.8rem + 0.3vw, 0.9rem);
    --fs-sm-rd: clamp(0.75rem, 0.8rem + 0.3vw, 0.3rem);
    --fs-base: clamp(0.95rem, 0.9rem + 0.25vw, 1.05rem);
    --fs-md: clamp(1.1rem, 1rem + 0.5vw, 1.25rem);
    --fs-lg: clamp(1.3rem, 1.1rem + 1vw, 1.75rem);
    --fs-xl: clamp(1.6rem, 1.3rem + 1.5vw, 2.25rem);
    --fs-2xl: clamp(2rem, 1.5rem + 2.5vw, 3rem);
    --fs-3xl: clamp(2.5rem, 1.8rem + 3.5vw, 4rem);
    /* Borders & Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 30px var(--blue-glow);
    --shadow-cyan: 0 0 30px var(--cyan-glow);
    /* Transitions */
    --transition-fast: 200ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    /* Layout */
    --max-width: 1200px;
    --header-height: 80px;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--navy);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

/* ============================================
   Utility Classes
   ============================================ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-4xl) 0;
}

.section-light {
  background: var(--surface-light);
  color: var(--text-dark);
}

.section-light .text-secondary {
  color: var(--text-dark-secondary);
}

.text-center { text-align: center; }
.text-gradient {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================
   Section Header
   ============================================ */
.section-header {
  margin-bottom: var(--space-3xl);
  text-align: center;
}

.section-header .badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-lg);
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-radius: var(--radius-full);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--cyan);
  margin-bottom: var(--space-lg);
}

.section-light .section-header .badge {
  background: rgba(30, 111, 255, 0.08);
  border-color: rgba(30, 111, 255, 0.15);
  color: var(--blue-primary);
}

.section-header h2 {
  font-size: var(--fs-2xl);
  margin-bottom: var(--space-md);
}

.section-header p {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto;
}

/* ============================================
   Header & Navigation
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(10, 22, 40, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.site-header.scrolled {
  background: rgba(10, 22, 40, 0.95);
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--fs-lg);
  color: var(--text-primary);
  z-index: 1001;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-gradient);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  color: white;
}

.logo span {
  color: var(--cyan);
}

/* Desktop Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: var(--glass-bg);
}

.nav-link.active {
  color: var(--cyan);
}

.nav-link .arrow {
  font-size: 0.65rem;
  transition: transform var(--transition-fast);
}

.nav-item:hover .arrow {
  transform: rotate(180deg);
}

/* Dropdown Menu */
.dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 220px;
  background: var(--navy-light);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-lg);
}

.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown a {
  display: block;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.dropdown a:hover {
  color: var(--text-primary);
  background: var(--glass-bg);
  padding-left: var(--space-lg);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
  padding: var(--space-sm);
  background: none;
  border: none;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* CTA Button in Nav */
.nav-cta {
  padding: var(--space-sm) var(--space-lg);
  background: var(--accent-gradient);
  color: white;
  font-weight: 600;
  font-size: var(--fs-sm);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-glow);
}

/* CTA Button in Nav */
.nav-cta-RDemo {
    padding: var(--space-sm) var(--space-lg);
    background: var(--accent-gradient);
    color: white;
    font-weight: 600;
    font-size: var(--fs-sm-rd);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-glow);
}

.nav-cta:hover {
  background: var(--accent-gradient-hover);
  transform: translateY(-2px);
  box-shadow: 0 0 40px var(--blue-glow);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(30, 111, 255, 0.12) 0%, transparent 70%),
              radial-gradient(ellipse 60% 50% at 80% 20%, rgba(0, 201, 219, 0.08) 0%, transparent 60%);
}

.hero-bg::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to top, var(--navy), transparent);
}

/* Animated grid background */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(30, 111, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 111, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-lg);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--cyan);
  margin-bottom: var(--space-xl);
  animation: fadeInUp 0.8s ease forwards;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--cyan);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

.hero h1 {
  font-size: var(--fs-3xl);
  font-weight: 800;
  margin-bottom: var(--space-xl);
  animation: fadeInUp 0.8s ease 0.1s forwards;
  opacity: 0;
}

.hero p {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto var(--space-2xl);
  animation: fadeInUp 0.8s ease 0.2s forwards;
  opacity: 0;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.3s forwards;
  opacity: 0;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 32px;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  outline: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-gradient);
  color: white;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 40px var(--blue-glow);
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
  background: var(--glass-bg-hover);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-3px);
}

.btn-outline {
  background: transparent;
  color: var(--blue-primary);
  border: 2px solid var(--blue-primary);
}

.btn-outline:hover {
  background: var(--blue-primary);
  color: white;
  transform: translateY(-3px);
}

.section-light .btn-primary {
  box-shadow: 0 4px 20px rgba(30, 111, 255, 0.3);
}

/* ============================================
   Cards
   ============================================ */
.card {
  background: var(--surface-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(30, 111, 255, 0.2);
  box-shadow: var(--shadow-glow);
}

.card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 56px;
  height: 56px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
  color: var(--cyan);
}

.card h3 {
  font-size: var(--fs-md);
  margin-bottom: var(--space-md);
}

.card p {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.7;
}

/* Light section cards */
.section-light .card {
  background: var(--surface-white);
  border: 1px solid #e2e8f0;
  box-shadow: var(--shadow-sm);
}

.section-light .card:hover {
  box-shadow: 0 8px 30px rgba(30, 111, 255, 0.12);
  border-color: rgba(30, 111, 255, 0.2);
}

.section-light .card p {
  color: var(--text-dark-secondary);
}

.section-light .card-icon {
  background: rgba(30, 111, 255, 0.08);
  border-color: rgba(30, 111, 255, 0.15);
  color: var(--blue-primary);
}

/* ============================================
   Grid Layouts
   ============================================ */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

/* ============================================
   Feature Row (Icon + Text Side by Side)
   ============================================ */
.feature-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.feature-row:hover {
  background: var(--glass-bg);
}

.feature-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--cyan);
}

.feature-text h3 {
  font-size: var(--fs-base);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.feature-text p {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

/* ============================================
   Pricing Table
   ============================================ */
.pricing-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface-card);
  border: 1px solid var(--glass-border);
}

.pricing-table thead {
  background: var(--accent-gradient);
}

.pricing-table th {
  padding: var(--space-lg) var(--space-md);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--fs-sm);
  color: white;
  text-align: left;
  white-space: nowrap;
}

.pricing-table td {
  padding: var(--space-md);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  border-bottom: 1px solid var(--glass-border);
}

.pricing-table tbody tr {
  transition: background var(--transition-fast);
}

.pricing-table tbody tr:hover {
  background: var(--glass-bg);
}

.pricing-table tbody tr:last-child td {
  border-bottom: none;
}

/* Light mode pricing */
.section-light .pricing-table {
  background: white;
  border-color: #e2e8f0;
}

.section-light .pricing-table td {
  color: var(--text-dark-secondary);
  border-bottom-color: #e2e8f0;
}

.section-light .pricing-table tbody tr:hover {
  background: #f8fafc;
}

/* ============================================
   Responsive Pricing Cards (mobile)
   ============================================ */
.pricing-cards {
  display: none;
}

/* ============================================
   Stats Bar
   ============================================ */
.stats-bar {
  display: flex;
  justify-content: center;
  gap: var(--space-3xl);
  padding: var(--space-2xl) 0;
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: var(--fs-2xl);
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  margin-top: var(--space-xs);
}

/* ============================================
   Process / Timeline
   ============================================ */
.process-steps {
  display: flex;
  gap: var(--space-xl);
  position: relative;
  flex-wrap: wrap;
  justify-content: center;
}

.process-step {
  flex: 1;
  min-width: 200px;
  max-width: 260px;
  text-align: center;
  position: relative;
}

.step-number {
  width: 56px;
  height: 56px;
  background: var(--accent-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-md);
  color: white;
  margin: 0 auto var(--space-lg);
  box-shadow: var(--shadow-glow);
}

.process-step h3 {
  font-size: var(--fs-base);
  margin-bottom: var(--space-sm);
}

.process-step p {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

/* ============================================
   Forms
   ============================================ */
.form-container {
  max-width: 700px;
  margin: 0 auto;
  background: var(--surface-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
}

.section-light .form-container {
  background: var(--surface-white);
  border-color: #e2e8f0;
  box-shadow: var(--shadow-sm);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.section-light .form-group label {
  color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  color: var(--text-primary);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  outline: none;
}

.section-light .form-group input,
.section-light .form-group select,
.section-light .form-group textarea {
  color: var(--text-dark);
  background: #f8fafc;
  border-color: #e2e8f0;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue-primary);
  box-shadow: 0 0 0 3px var(--blue-glow);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

/* ============================================
   Page Hero (Sub-pages)
   ============================================ */
.page-hero {
  padding: calc(var(--header-height) + var(--space-4xl)) 0 var(--space-3xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 30%, rgba(30, 111, 255, 0.1) 0%, transparent 70%);
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  font-size: var(--fs-2xl);
  margin-bottom: var(--space-md);
}

.page-hero p {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  justify-content: center;
  margin-bottom: var(--space-xl);
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--cyan);
}

.breadcrumb .separator {
  font-size: 0.7rem;
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background: var(--surface-dark);
  border-top: 1px solid var(--glass-border);
  padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  margin-top: var(--space-md);
  line-height: 1.8;
  max-width: 300px;
}

.footer-col h4 {
  font-size: var(--fs-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.footer-col a {
  display: block;
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  padding: var(--space-xs) 0;
  transition: all var(--transition-fast);
}

.footer-col a:hover {
  color: var(--cyan);
  padding-left: var(--space-sm);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  margin-bottom: var(--space-md);
}

.footer-contact-icon {
  color: var(--cyan);
  font-size: 1rem;
  margin-top: 2px;
}

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-bottom p {
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-bottom-links a {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-bottom-links a:hover {
  color: var(--cyan);
}

/* ============================================
   Scroll Animations
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================
   Keyframe Animations
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

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

/* ============================================
   Highlight / Call-Out Box
   ============================================ */
.callout {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-left: 4px solid var(--cyan);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
}

.callout h3 {
  font-size: var(--fs-base);
  margin-bottom: var(--space-sm);
  color: var(--cyan);
}

.callout p, .callout li {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

.section-light .callout {
  background: rgba(30, 111, 255, 0.04);
  border-color: rgba(30, 111, 255, 0.1);
  border-left-color: var(--blue-primary);
}

.section-light .callout h3 {
  color: var(--blue-primary);
}

.section-light .callout p,
.section-light .callout li {
  color: var(--text-dark-secondary);
}

/* ============================================
   Content Area (text-heavy pages)
   ============================================ */
.content-area h2 {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-lg);
  margin-top: var(--space-2xl);
}

.content-area h3 {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-md);
  margin-top: var(--space-xl);
}

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

.content-area ul, .content-area ol {
  margin-bottom: var(--space-lg);
  padding-left: var(--space-lg);
}

.content-area li {
  color: var(--text-secondary);
  padding: var(--space-xs) 0;
  position: relative;
  padding-left: var(--space-lg);
}

.content-area li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-weight: 600;
}

.section-light .content-area p {
  color: var(--text-dark-secondary);
}

.section-light .content-area li {
  color: var(--text-dark-secondary);
}

.section-light .content-area li::before {
  color: var(--blue-primary);
}

/* ============================================
   Value Cards Grid (About page values)
   ============================================ */
.value-card {
  text-align: center;
  padding: var(--space-2xl);
}

.value-card .value-letter {
  width: 72px;
  height: 72px;
  background: var(--accent-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--fs-xl);
  color: white;
  margin: 0 auto var(--space-lg);
  box-shadow: var(--shadow-glow);
}

/* ============================================
   Contact Info Box
   ============================================ */
.contact-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.contact-info-card {
  background: var(--surface-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  transition: all var(--transition-base);
}

.contact-info-card:hover {
  transform: translateY(-3px);
  border-color: rgba(30, 111, 255, 0.2);
  box-shadow: var(--shadow-glow);
}

.contact-info-card .icon-circle {
  width: 48px;
  height: 48px;
  background: var(--accent-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.2rem;
}

.contact-info-card h3 {
  font-size: var(--fs-base);
  margin-bottom: var(--space-xs);
}

.contact-info-card p,
.contact-info-card a {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

.contact-info-card a:hover {
  color: var(--cyan);
}

/* ============================================
   Mobile Responsive Styles
   ============================================ */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }

  /* Mobile Navigation */
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 360px;
    height: 100vh;
    background: var(--navy-light);
    flex-direction: column;
    align-items: stretch;
    padding: calc(var(--header-height) + var(--space-xl)) var(--space-xl) var(--space-xl);
    gap: var(--space-xs);
    transition: right var(--transition-base);
    overflow-y: auto;
    border-left: 1px solid var(--glass-border);
    z-index: 1000;
  }

  .main-nav.open {
    right: 0;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-link {
    padding: var(--space-md);
    font-size: var(--fs-base);
  }

  .nav-item .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: rgba(0, 0, 0, 0.15);
    border: none;
    border-radius: var(--radius-sm);
    margin-top: var(--space-xs);
    padding: var(--space-xs);
    display: none;
  }

  .nav-item.dropdown-open .dropdown {
    display: block;
  }

  .nav-cta {
    text-align: center;
    margin-top: var(--space-md);
  }

  /* Mobile Overlay */
  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
  }

  .nav-overlay.visible {
    display: block;
  }

  /* Grid adjustments */
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  /* Stats */
  .stats-bar {
    gap: var(--space-xl);
  }

  /* Process Steps */
  .process-steps {
    flex-direction: column;
    align-items: center;
  }

  .process-step {
    max-width: 100%;
  }

  /* Table responsive */
  .table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--radius-lg);
  }

  /* Hero */
  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + var(--space-2xl));
    padding-bottom: var(--space-2xl);
  }

  .hero-content {
    padding: var(--space-xl) var(--space-md);
  }
}

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

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

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

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

/* ============================================
   Print Styles
   ============================================ */
@media print {
  .site-header, .menu-toggle, .nav-overlay, .hero-bg, .hero-grid {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }

  a {
    color: #1e6fff;
  }
}