/* ========================================
   CLS Solution Website Styles
   White Minimal Design Concept
   ======================================== */

/* ========================================
   CSS Variables
   ======================================== */
:root {
  /* Colors - White Minimal Palette */
  --color-primary-black: #0A0E14;
  --color-primary-blue: #1E40AF;
  --color-white: #FFFFFF;

  /* Gray Scale */
  --color-gray-50: #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;

  /* Typography */
  --font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Font Sizes - Responsive with clamp() */
  --font-size-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --font-size-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --font-size-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --font-size-lg: clamp(1.125rem, 1rem + 0.6vw, 1.25rem);
  --font-size-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --font-size-2xl: clamp(1.5rem, 1.3rem + 1vw, 1.875rem);
  --font-size-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.25rem);
  --font-size-4xl: clamp(2.25rem, 1.8rem + 2.25vw, 3rem);
  --font-size-5xl: clamp(3rem, 2.4rem + 3vw, 3.75rem);

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  /* Layout */
  --container-max-width: 1200px;
  --header-height: 70px;

  /* Border */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;
  --border-width: 1px;

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

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Z-index */
  --z-header: 1000;
  --z-mobile-nav: 999;
  --z-loading: 9999;
  --z-back-to-top: 998;
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --color-primary-black: #FFFFFF;
  --color-white: #0A0E14;
  --color-gray-50: #1F2937;
  --color-gray-100: #374151;
  --color-gray-200: #4B5563;
  --color-gray-300: #6B7280;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #D1D5DB;
  --color-gray-600: #E5E7EB;
  --color-gray-700: #F3F4F6;
  --color-gray-800: #F9FAFB;
  --color-gray-900: #FFFFFF;

  --shadow-sm: 0 1px 2px 0 rgba(255, 255, 255, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(255, 255, 255, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(255, 255, 255, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(255, 255, 255, 0.1);
}

/* ========================================
   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-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-primary-black);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  transition: all var(--transition-fast);
}

/* ========================================
   Container
   ======================================== */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--spacing-2xl);
  }
}

/* ========================================
   Loading Screen
   ======================================== */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-white);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: var(--z-loading);
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--color-gray-200);
  border-top-color: var(--color-primary-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-screen p {
  margin-top: var(--spacing-md);
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
}

/* ========================================
   Scroll Progress Bar
   ======================================== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary-blue), #3B82F6);
  z-index: calc(var(--z-header) + 1);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 100ms linear;
}

/* ========================================
   Header
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: var(--color-white);
  border-bottom: var(--border-width) solid transparent;
  z-index: var(--z-header);
  transition: all var(--transition-base);
}

.header.scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--color-gray-200);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .header.scrolled {
  background-color: rgba(10, 14, 20, 0.95);
  border-bottom-color: var(--color-gray-200);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: var(--font-size-xl);
  color: var(--color-primary-black);
}

.logo svg text {
  fill: var(--color-primary-black);
}

/* Desktop Navigation */
.nav-desktop {
  display: none;
}

@media (min-width: 768px) {
  .nav-desktop {
    display: block;
  }
}

.nav-list {
  display: flex;
  gap: var(--spacing-xl);
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-700);
  padding: var(--spacing-sm) 0;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary-blue);
  transition: width var(--transition-base);
}

.nav-link:hover {
  color: var(--color-primary-blue);
}

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

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* Dark Mode Toggle */
.dark-mode-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-gray-100);
  color: var(--color-gray-700);
  transition: all var(--transition-fast);
}

.dark-mode-toggle:hover {
  background-color: var(--color-gray-200);
  transform: rotate(15deg);
}

.dark-mode-toggle .sun-icon {
  display: block;
}

.dark-mode-toggle .moon-icon {
  display: none;
}

[data-theme="dark"] .dark-mode-toggle .sun-icon {
  display: none;
}

[data-theme="dark"] .dark-mode-toggle .moon-icon {
  display: block;
}

/* Hamburger Menu */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  padding: 0;
}

@media (min-width: 768px) {
  .hamburger {
    display: none;
  }
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary-black);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

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

.hamburger.active span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* Mobile Navigation */
.nav-mobile {
  position: absolute;
  top: var(--header-height);
  left: 0;
  width: 100%;
  background-color: var(--color-white);
  border-bottom: var(--border-width) solid var(--color-gray-200);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
  z-index: var(--z-mobile-nav);
}

[data-theme="dark"] .nav-mobile {
  background-color: var(--color-gray-50);
}

.nav-mobile.active {
  max-height: 400px;
  box-shadow: var(--shadow-lg);
}

.nav-list-mobile {
  padding: var(--spacing-lg) 0;
}

.nav-link-mobile {
  display: block;
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-gray-700);
  transition: all var(--transition-fast);
}

.nav-link-mobile:hover {
  background-color: var(--color-gray-50);
  color: var(--color-primary-blue);
  padding-left: var(--spacing-2xl);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.5rem;
  font-size: var(--font-size-sm);
  font-weight: 600;
  line-height: 1.5;
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
  min-height: 48px;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary-blue);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: #1E3A8A;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
  background-color: var(--color-primary-blue);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-outline-white {
  background-color: transparent;
  color: var(--color-white);
  border: var(--border-width) solid var(--color-white);
}

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

.btn-lg {
  padding: 0.875rem 2rem;
  font-size: var(--font-size-base);
}

.btn-block {
  width: 100%;
}

@media (max-width: 767px) {
  .btn-primary {
    display: none;
  }
}

/* ========================================
   Section Common Styles
   ======================================== */
section {
  padding: var(--spacing-4xl) 0;
}

@media (max-width: 767px) {
  section {
    padding: var(--spacing-3xl) 0;
  }
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-4xl);
}

@media (max-width: 767px) {
  .section-header {
    margin-bottom: var(--spacing-2xl);
  }
}

.section-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary-blue);
  background-color: rgba(30, 64, 175, 0.1);
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--spacing-md);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-md);
}

.section-description {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  color: var(--color-gray-600);
  max-width: 700px;
  margin: 0 auto;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  min-height: 120vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: var(--header-height);
  padding-bottom: calc(var(--spacing-4xl) * 2);
  background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
  position: relative;
  overflow: hidden;
  will-change: transform, opacity;
}

@media (max-width: 767px) {
  .hero {
    min-height: 100vh;
    padding-bottom: var(--spacing-4xl);
  }
}

[data-theme="dark"] .hero {
  background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-gray-100) 100%);
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

/* Hero Illustration */
.hero-illustration {
  position: absolute;
  bottom: 10%;
  right: 5%;
  width: 300px;
  height: 300px;
  opacity: 0.15;
  z-index: 1;
  pointer-events: none;
}

@media (max-width: 767px) {
  .hero-illustration {
    width: 200px;
    height: 200px;
    bottom: 5%;
    right: 50%;
    transform: translateX(50%);
  }
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  font-weight: 300;
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-xl);
  letter-spacing: 0.02em;
}

.hero-description {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-2xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* ========================================
   About Section
   ======================================== */
.about {
  background-color: var(--color-white);
}

.values-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .values-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
  }
}

.value-card {
  text-align: center;
  padding: var(--spacing-xl);
  border: var(--border-width) solid var(--color-gray-200);
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-base);
}

.value-card:hover {
  border-color: var(--color-primary-blue);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.value-icon {
  margin-bottom: var(--spacing-lg);
}

.value-icon svg {
  margin: 0 auto;
}

.value-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-md);
}

.value-description {
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-gray-600);
}

/* ========================================
   Stats Section
   ======================================== */
.stats {
  background-color: var(--color-primary-blue);
  color: var(--color-white);
  padding: var(--spacing-4xl) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
  }
}

@media (min-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-item {
  text-align: center;
  /* padding: var(--spacing-xl); */
}

.stat-value {
  display: inline-block;
  font-size: var(--font-size-5xl);
  font-weight: 800;
  line-height: 1;
  color: var(--color-white);
}

.stat-unit {
  display: inline-block;
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: rgba(255, 255, 255, 0.8);
  margin-left: var(--spacing-xs);
}

.stat-label {
  margin-top: var(--spacing-md);
  font-size: var(--font-size-base);
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
}

/* ========================================
   Products Section
   ======================================== */
.products {
  background-color: var(--color-gray-50);
}

.product-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
  margin-bottom: var(--spacing-4xl);
  padding: var(--spacing-2xl);
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-gray-200);
  border-radius: var(--border-radius-xl);
  transition: all 0.3s ease-out;
}

@media (min-width: 1024px) {
  .product-card {
    grid-template-columns: 1fr 1fr;
    padding: var(--spacing-3xl);
  }
}

.product-card:hover,
.product-card:active,
.product-card:focus-within {
  box-shadow: 0 2px 8px rgba(30, 64, 175, 0.08);
  border-color: var(--color-primary-blue);
  transform: scale(1.005);
}

.product-card:last-child {
  margin-bottom: 0;
}

@media (min-width: 1024px) {
  .product-card-reverse {
    direction: rtl;
  }

  .product-card-reverse > * {
    direction: ltr;
  }
}

.product-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-white);
  background-color: var(--color-primary-blue);
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--spacing-md);
}

.product-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-sm);
}

.product-subtitle {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-lg);
}

.product-description {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-xl);
}

.product-features {
  margin-bottom: var(--spacing-xl);
}

.product-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-base);
  color: var(--color-gray-700);
}

.product-features li svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.product-applications {
  padding: var(--spacing-lg);
  background-color: var(--color-gray-50);
  border-left: 4px solid var(--color-primary-blue);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
}

.product-applications strong {
  font-weight: 700;
  color: var(--color-primary-black);
}

.product-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  padding: var(--spacing-xl);
  background-color: var(--color-gray-50);
  border-radius: var(--border-radius-lg);
}

/* ========================================
   Technology Section
   ======================================== */
.technology {
  background-color: var(--color-white);
}

.tech-grid {
  margin-bottom: var(--spacing-4xl);
}

.tech-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
  margin-bottom: var(--spacing-3xl);
  padding: var(--spacing-2xl);
  border: var(--border-width) solid var(--color-gray-200);
  border-radius: var(--border-radius-xl);
  transition: all var(--transition-base);
}

@media (min-width: 1024px) {
  .tech-card {
    grid-template-columns: 1fr 1fr;
    padding: var(--spacing-3xl);
  }
}

.tech-card:hover,
.tech-card:active,
.tech-card:focus-within {
  border-color: var(--color-primary-blue);
  box-shadow: 0 2px 8px rgba(30, 64, 175, 0.08);
  transform: scale(1.005);
}

.tech-card:last-child {
  margin-bottom: 0;
}

@media (min-width: 1024px) {
  .tech-card-reverse {
    direction: rtl;
  }

  .tech-card-reverse > * {
    direction: ltr;
  }
}

.tech-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  padding: var(--spacing-xl);
  background-color: var(--color-gray-50);
  border-radius: var(--border-radius-lg);
}

.tech-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-sm);
}

.tech-subtitle {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-primary-blue);
  margin-bottom: var(--spacing-lg);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tech-description {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-xl);
}

.tech-highlights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

@media (max-width: 767px) {
  .tech-highlights {
    grid-template-columns: 1fr;
  }
}

.tech-highlight-item {
  text-align: center;
  padding: var(--spacing-lg);
  background-color: var(--color-gray-50);
  border-radius: var(--border-radius-md);
}

.tech-highlight-item strong {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary-blue);
  margin-bottom: var(--spacing-xs);
}

.tech-highlight-item span {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
}

/* Innovation Section */
.innovation-section {
  padding: var(--spacing-3xl);
  background-color: var(--color-gray-50);
  border-radius: var(--border-radius-xl);
}

.innovation-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  text-align: center;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-2xl);
}

.innovation-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .innovation-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.innovation-card {
  padding: var(--spacing-xl);
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-gray-200);
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-base);
}

.innovation-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-blue);
}

.innovation-icon {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
}

.innovation-card h4 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-md);
}

.innovation-card p {
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-gray-600);
}

/* ========================================
   Partners Section
   ======================================== */
.partners {
  background-color: var(--color-gray-50);
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
}

.partner-category {
  margin-bottom: var(--spacing-4xl);
}

.partner-category:last-child {
  margin-bottom: 0;
}

.partner-category-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.partner-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .partner-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.partner-card {
  text-align: center;
  padding: var(--spacing-xl);
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-gray-200);
  border-radius: var(--border-radius-lg);
  transition: all 0.3s ease-out;
}

.partner-card:hover,
.partner-card:active,
.partner-card:focus-within {
  box-shadow: 0 2px 8px rgba(30, 64, 175, 0.08);
  border-color: var(--color-primary-blue);
  transform: scale(1.005);
}

.partner-logo {
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 80px;
}

.partner-name {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-xs);
}

.partner-description {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-sm);
}

/* Customer Types */
.customer-types {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .customer-types {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
  }
}

.customer-type-card {
  padding: var(--spacing-2xl);
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-gray-200);
  border-radius: var(--border-radius-lg);
}

.customer-type-card h4 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--color-primary-blue);
}

.customer-type-card ul {
  list-style: none;
}

.customer-type-card li {
  position: relative;
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-base);
  color: var(--color-gray-700);
  line-height: 1.6;
}

.customer-type-card li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-primary-blue);
  font-size: var(--font-size-xl);
  line-height: 1;
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary-blue) 0%, #1E3A8A 100%);
  color: var(--color-white);
  text-align: center;
}

.cta-content {
  max-width: 800px;
  margin: 0 auto;
}

.cta-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
}

.cta-description {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  margin-bottom: var(--spacing-2xl);
  opacity: 0.95;
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
  background-color: var(--color-white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-3xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

@media (min-width: 768px) {
  .contact-info {
    flex-direction: row;
    gap: var(--spacing-lg);
  }
}

.contact-item {
  display: flex;
  gap: var(--spacing-lg);
  padding: var(--spacing-xl);
  background-color: var(--color-gray-50);
  border-radius: var(--border-radius-lg);
  border: var(--border-width) solid var(--color-gray-200);
  transition: all var(--transition-base);
  flex: 1;
  min-width: 0;
}

.contact-item:hover {
  border-color: var(--color-primary-blue);
  box-shadow: var(--shadow-md);
}

.contact-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(30, 64, 175, 0.1);
  border-radius: 50%;
}

.contact-item h4 {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-xs);
}

.contact-item p {
  font-size: var(--font-size-base);
  color: var(--color-gray-600);
  line-height: 1.6;
}

/* Contact Form */
.contact-form-wrapper {
  padding: var(--spacing-2xl);
  background-color: var(--color-gray-50);
  border: var(--border-width) solid var(--color-gray-200);
  border-radius: var(--border-radius-xl);
}

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

@media (min-width: 768px) {
  .contact-form {
    grid-template-columns: repeat(2, 1fr);
  }
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group-full {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group textarea {
  padding: var(--spacing-md);
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  color: var(--color-primary-black);
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-gray-300);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
  min-height: 48px;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary-blue);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

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

/* ========================================
   Footer
   ======================================== */
.footer {
  background-color: var(--color-gray-900);
  color: var(--color-gray-300);
  padding: var(--spacing-4xl) 0 var(--spacing-xl) 0;
}

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

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-section h3,
.footer-section h4 {
  margin-bottom: var(--spacing-lg);
}

.footer-logo {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-white);
}

.footer-description {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--color-gray-400);
  margin-bottom: var(--spacing-lg);
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
}

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-gray-800);
  border-radius: 50%;
  color: var(--color-gray-400);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background-color: var(--color-primary-blue);
  color: var(--color-white);
  transform: translateY(-2px);
}

.footer-title {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-white);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.footer-links a {
  font-size: var(--font-size-sm);
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-primary-blue);
  padding-left: var(--spacing-xs);
}

.footer-bottom {
  padding-top: var(--spacing-xl);
  border-top: var(--border-width) solid var(--color-gray-800);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer-bottom p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

.footer-legal {
  display: flex;
  gap: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

.footer-legal a {
  color: var(--color-gray-500);
  transition: color var(--transition-fast);
}

.footer-legal a:hover {
  color: var(--color-primary-blue);
}

/* ========================================
   Back to Top Button
   ======================================== */
.back-to-top {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  width: 48px;
  height: 48px;
  background-color: var(--color-primary-blue);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
  z-index: var(--z-back-to-top);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: #1E3A8A;
  transform: translateY(-4px);
}

/* ========================================
   Utility Classes
   ======================================== */
.text-center {
  text-align: center;
}

.hidden {
  display: none !important;
}

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

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
  .header,
  .hamburger,
  .nav-mobile,
  .dark-mode-toggle,
  .back-to-top,
  .scroll-progress,
  .loading-screen {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }
}
/* ========================================
   CLS Solution Website v2.0 - Additional Styles
   New Sections & Enhanced Animations
   ======================================== */

/* ========================================
   Enhanced Parallax Layers
   ======================================== */
.hero {
  min-height: 130vh;
  position: relative;
  overflow: hidden;
  will-change: transform, opacity;
}

@media (max-width: 767px) {
  .hero {
    min-height: 100vh;
  }
}

.hero-content {
  will-change: transform;
  transform-style: preserve-3d;
}

.hero-illustration {
  will-change: transform;
  transform-style: preserve-3d;
}

/* ========================================
   Hero Background Slider
   ======================================== */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 800ms ease;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}

.hero-slide.is-active {
  opacity: 1;
}

/* Clean gradient (current design) */
.hero-slide.bg-clean {
  background-image: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

/* Site image (placeholder using existing SVG until real photo provided) */
.hero-slide.bg-site {
  background-color: var(--color-gray-100);
}

/* Hero geometric background */
.hero-geo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.45;
  pointer-events: none;
}

@media (max-width: 1023px) {
  .hero-geo {
    opacity: 0.35;
  }
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.25) 0%, rgba(0,0,0,0.35) 100%);
  opacity: 0.35;
}

@media (max-width: 767px) {
  .hero-bg-overlay {
    opacity: 0.45;
  }
}

/* ========================================
   Vision Section (NEW)
   ======================================== */
.vision {
  background: linear-gradient(180deg, var(--color-white) 0%, var(--color-gray-50) 100%);
  position: relative;
  overflow: hidden;
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
}

[data-theme="dark"] .vision {
  background: linear-gradient(180deg, var(--color-gray-50) 0%, var(--color-gray-100) 100%);
}

.vision-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
}

@media (min-width: 768px) {
  .vision-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-3xl);
  }
}

.vision-card {
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-2xl);
  background: var(--color-white);
  border: var(--border-width) solid var(--color-gray-200);
  border-radius: var(--border-radius-xl);
  transition: all 0.3s ease-out;
  position: relative;
  overflow: hidden;
}

.vision-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary-blue), #3B82F6);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

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

.vision-card:hover,
.vision-card:active,
.vision-card:focus-within {
  border-color: var(--color-primary-blue);
  transform: scale(1.005);
  box-shadow: 0 2px 8px rgba(30, 64, 175, 0.08);
}

.vision-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-lg);
  display: inline-block;
  transform: scale(1);
  transition: transform var(--transition-base);
}

.vision-card:hover .vision-icon,
.vision-card:active .vision-icon,
.vision-card:focus-within .vision-icon {
  transform: scale(1.05);
}

.vision-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
}

.vision-description {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--color-gray-600);
}

/* ========================================
   CI Section (NEW)
   ======================================== */
.ci-section {
  background-color: var(--color-gray-50);
  position: relative;
}

.ci-content-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-4xl);
  align-items: center;
}

@media (min-width: 1024px) {
  .ci-content-wrapper {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
  }
}

.ci-logo-display {
  text-align: center;
  padding: var(--spacing-4xl);
  background: var(--color-white);
  border-radius: var(--border-radius-xl);
  border: var(--border-width) solid var(--color-gray-200);
}

.ci-main-logo {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-xl);
  letter-spacing: -0.02em;
}

.ci-sub-logo {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-primary-blue);
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  background: rgba(30, 64, 175, 0.1);
  border-radius: var(--border-radius-md);
}

.ci-particle-visual {
  width: 200px;
  height: 200px;
  margin: var(--spacing-2xl) auto;
  position: relative;
}

.ci-particle-visual svg {
  width: 100%;
  height: 100%;
}

.ci-descriptions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

.ci-description-card {
  padding: var(--spacing-2xl);
  background: var(--color-white);
  border-left: 4px solid var(--color-primary-blue);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.ci-description-card:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-lg);
}

.ci-description-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-md);
}

.ci-description-content {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--color-gray-600);
}

.ci-slogan {
  display: inline-block;
  font-weight: 700;
  color: var(--color-primary-blue);
  background: rgba(30, 64, 175, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
}

/* ========================================
   Enhanced Product Cards
   ======================================== */
.products {
  padding: var(--spacing-4xl) 0;
  background: var(--color-gray-50);
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
}

.product-detail {
  margin-bottom: var(--spacing-4xl);
  padding: var(--spacing-3xl);
  background: var(--color-white);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-lg);
}

.product-detail:last-of-type {
  margin-bottom: var(--spacing-3xl);
}

.product-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
  padding-bottom: var(--spacing-2xl);
  border-bottom: 2px solid var(--color-gray-100);
}

.product-badge {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  background: linear-gradient(135deg, var(--color-primary-blue) 0%, #3B82F6 100%);
  color: var(--color-white);
  font-size: var(--font-size-sm);
  font-weight: 700;
  border-radius: var(--border-radius-full);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.product-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
}

.product-description {
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  line-height: 1.8;
  max-width: 800px;
  margin: 0 auto var(--spacing-xl);
}

.product-header .btn {
  margin-top: var(--spacing-lg);
}

.product-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-2xl);
  width: 100%;
}

@media (min-width: 1024px) {
  .product-content {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
}

.product-features {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
  width: 100%;
  max-width: 100%;
}

@media (min-width: 1024px) {
  .product-features {
    max-width: none;
  }
}

.feature-group {
  padding: var(--spacing-xl);
  background: var(--color-gray-50);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-base);
  width: 100%;
  box-sizing: border-box;
}

.feature-group:hover {
  border-color: var(--color-primary-blue);
  box-shadow: 0 4px 12px rgba(30, 64, 175, 0.1);
}

.feature-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

@media (min-width: 640px) {
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

.feature-item {
  padding: var(--spacing-md);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-md);
  text-align: center;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-700);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

.feature-item:hover {
  border-color: var(--color-primary-blue);
  background: rgba(30, 64, 175, 0.05);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.feature-sub {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
  font-weight: 400;
  margin-top: 2px;
}

.process-flow {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  align-items: center;
}

@media (min-width: 768px) {
  .process-flow {
    flex-direction: row;
    justify-content: space-between;
  }
}

.flow-step {
  flex: 1;
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  border: 2px solid var(--color-gray-200);
  position: relative;
  transition: all var(--transition-base);
  min-width: 150px;
}

.flow-step:hover {
  border-color: var(--color-primary-blue);
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(30, 64, 175, 0.15);
}

.flow-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-primary-blue);
  color: var(--color-white);
  border-radius: 50%;
  font-weight: 700;
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}

.flow-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.flow-content strong {
  font-size: var(--font-size-base);
  color: var(--color-primary-black);
}

.flow-content span {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
}

.flow-arrow {
  font-size: var(--font-size-2xl);
  color: var(--color-primary-blue);
  font-weight: 700;
  display: none;
}

@media (min-width: 768px) {
  .flow-arrow {
    display: block;
  }
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.feature-list li {
  padding-left: var(--spacing-lg);
  position: relative;
  font-size: var(--font-size-base);
  color: var(--color-gray-700);
  line-height: 1.6;
}

.feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary-blue);
  font-weight: 700;
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
}

@media (min-width: 640px) {
  .application-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.application-item {
  padding: var(--spacing-md);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-md);
  text-align: center;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-700);
  transition: all var(--transition-fast);
}

.application-item:hover {
  border-color: var(--color-primary-blue);
  background: rgba(30, 64, 175, 0.05);
  transform: scale(1.05);
}

.speed-zones {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
}

@media (min-width: 640px) {
  .speed-zones {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1024px) {
  .speed-zones {
    grid-template-columns: repeat(5, 1fr);
  }
}

.speed-zone {
  padding: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-primary-blue) 0%, #3B82F6 100%);
  color: var(--color-white);
  border-radius: var(--border-radius-md);
  text-align: center;
  font-weight: 700;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  box-shadow: 0 2px 4px rgba(30, 64, 175, 0.2);
}

.speed-zone:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 6px 12px rgba(30, 64, 175, 0.3);
}

.feature-note {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background: rgba(30, 64, 175, 0.05);
  border-left: 3px solid var(--color-primary-blue);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
  font-style: italic;
}

.algorithm-details {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

@media (min-width: 640px) {
  .algorithm-details {
    grid-template-columns: repeat(2, 1fr);
  }
}

.algorithm-item {
  padding: var(--spacing-lg);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-base);
}

.algorithm-item:hover {
  border-color: var(--color-primary-blue);
  box-shadow: 0 4px 8px rgba(30, 64, 175, 0.1);
  transform: translateY(-2px);
}

.algorithm-item strong {
  display: block;
  font-size: var(--font-size-base);
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-xs);
}

.algorithm-item p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  margin: 0;
  line-height: 1.6;
}

.product-illustration {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  background: var(--color-gray-50);
  border-radius: var(--border-radius-lg);
  width: 100%;
  max-width: 100%;
}

@media (min-width: 768px) {
  .product-illustration {
    max-width: 600px;
  }
}

@media (min-width: 1024px) {
  .product-illustration {
    max-width: 700px;
  }
}

.product-illustration img {
  width: 100%;
  min-width: 300px;
  height: auto;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.1));
}

@media (min-width: 768px) {
  .product-illustration img {
    min-width: 400px;
  }
}

@media (min-width: 1024px) {
  .product-illustration img {
    min-width: 500px;
  }
}

.tech-icon svg,
.hero-illustration svg {
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

@media (min-width: 768px) {
  .product-detail-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Stats Container - Removed */

.product-class-list {
  background: var(--color-gray-50);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  border: var(--border-width) solid var(--color-gray-200);
}

.product-class-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.product-class-items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
}

@media (min-width: 768px) {
  .product-class-items {
    grid-template-columns: repeat(3, 1fr);
  }
}

.product-class-item {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-white);
  border: var(--border-width) solid var(--color-gray-200);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  text-align: center;
  transition: all var(--transition-fast);
}

.product-class-item:hover {
  border-color: var(--color-primary-blue);
  background: rgba(30, 64, 175, 0.05);
  transform: translateY(-2px);
}

.product-process-flow {
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-2xl);
  background: var(--color-gray-50);
  border-radius: var(--border-radius-lg);
}

.product-process-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.product-process-steps {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

@media (min-width: 768px) {
  .product-process-steps {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.product-process-step {
  flex: 1;
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--color-white);
  border-radius: var(--border-radius-md);
  border: 2px solid var(--color-gray-200);
  position: relative;
}

.product-process-step::after {
  content: '→';
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: var(--font-size-2xl);
  color: var(--color-primary-blue);
}

@media (max-width: 767px) {
  .product-process-step::after {
    content: '↓';
    right: auto;
    top: auto;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
  }
}

.product-process-step:last-child::after {
  display: none;
}

.product-process-number {
  display: inline-block;
  width: 32px;
  height: 32px;
  line-height: 32px;
  background: var(--color-primary-blue);
  color: var(--color-white);
  border-radius: 50%;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.product-process-text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
  line-height: 1.5;
}

/* ========================================
   Enhanced Technology Section
   ======================================== */
.technology {
  padding: var(--spacing-4xl) 0;
  background: var(--color-white);
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
}

.tech-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-4xl);
}

@media (min-width: 1024px) {
  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.tech-card {
  padding: var(--spacing-3xl);
  background: var(--color-gray-50);
  border-radius: var(--border-radius-xl);
  border: 1px solid var(--color-gray-200);
  transition: all 0.3s ease-out;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  height: 100%;
}

.tech-card .btn {
  margin-top: auto;
}

/* Duplicate .tech-card:hover removed - see line 904 */

.tech-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 120px;
  height: 120px;
  margin: 0 auto var(--spacing-lg);
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.tech-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary-black);
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.tech-description {
  font-size: var(--font-size-base);
  color: var(--color-gray-600);
  text-align: center;
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 2px solid var(--color-gray-200);
}

.tech-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.tech-detail-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
  padding: var(--spacing-lg);
  background: var(--color-white);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-fast);
}

.tech-detail-item:hover {
  border-color: var(--color-primary-blue);
  box-shadow: 0 4px 8px rgba(30, 64, 175, 0.1);
  transform: translateX(4px);
}

.tech-detail-icon {
  font-size: var(--font-size-2xl);
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(30, 64, 175, 0.1);
  border-radius: var(--border-radius-md);
}

.tech-detail-content {
  flex: 1;
}

.tech-detail-content strong {
  display: block;
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-xs);
}

.tech-detail-content p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: 1.6;
  margin: 0;
}

/* R&D Highlights */
.rd-highlights {
  padding: var(--spacing-3xl);
  background: linear-gradient(135deg, #f9fafb 0%, #ffffff 100%);
  border-radius: var(--border-radius-xl);
  border: 1px solid var(--color-gray-200);
}

.rd-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary-black);
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.rd-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 640px) {
  .rd-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .rd-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.rd-item {
  padding: var(--spacing-xl);
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.rd-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(135deg, var(--color-primary-blue) 0%, #3B82F6 100%);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform var(--transition-base);
}

.rd-item:hover::before {
  transform: scaleY(1);
  transform-origin: top;
}

.rd-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(30, 64, 175, 0.15);
  border-color: var(--color-primary-blue);
}

.rd-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary-blue) 0%, #3B82F6 100%);
  color: var(--color-white);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.rd-subtitle {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-sm);
}

.rd-description {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: 1.6;
  margin: 0;
}

.tech-highlights-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

@media (min-width: 768px) {
  .tech-highlights-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.tech-highlight-card {
  padding: var(--spacing-lg);
  background: var(--color-gray-50);
  border-left: 4px solid var(--color-primary-blue);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-base);
}

.tech-highlight-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

.tech-highlight-card h5 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-sm);
}

.tech-highlight-card p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: 1.6;
}

/* ========================================
   Enhanced Partner Cards
   ======================================== */
.partner-detail-card {
  padding: var(--spacing-2xl);
  background: var(--color-white);
  border: var(--border-width) solid var(--color-gray-200);
  border-radius: var(--border-radius-xl);
  transition: all var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.partner-detail-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary-blue);
}

.partner-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--color-gray-100);
}

.partner-logo-wrapper {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-gray-50);
  border-radius: var(--border-radius-md);
  flex-shrink: 0;
}

.partner-info {
  flex: 1;
}

.partner-company-name {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-xs);
}

.partner-website {
  font-size: var(--font-size-sm);
  color: var(--color-primary-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.partner-website:hover {
  color: #1E3A8A;
  text-decoration: underline;
}

.partner-short-desc {
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-lg);
  font-weight: 500;
}

.partner-long-desc {
  font-size: var(--font-size-sm);
  line-height: 1.8;
  color: var(--color-gray-600);
  flex: 1;
}

.partner-expand-btn {
  margin-top: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-gray-100);
  border: none;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary-blue);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.partner-expand-btn:hover {
  background: var(--color-primary-blue);
  color: var(--color-white);
}

.partner-long-desc.collapsed {
  display: none;
}

/* Customer Types Grid */
.customer-types-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-2xl);
}

@media (min-width: 768px) {
  .customer-types-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.customer-type-section {
  padding: var(--spacing-2xl);
  background: var(--color-white);
  border: var(--border-width) solid var(--color-gray-200);
  border-radius: var(--border-radius-lg);
}

.customer-type-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 3px solid var(--color-primary-blue);
}

.customer-category {
  margin-bottom: var(--spacing-xl);
}

.customer-category:last-child {
  margin-bottom: 0;
}

.customer-category h5 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary-blue);
  margin-bottom: var(--spacing-md);
}

.customer-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.customer-item {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-gray-50);
  border-left: 3px solid var(--color-primary-blue);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
  transition: all var(--transition-fast);
}

.customer-item:hover {
  background: rgba(30, 64, 175, 0.05);
  transform: translateX(4px);
}

/* ========================================
   CEO Message Section (NEW POSITION)
   ======================================== */
.ceo-message {
  background: linear-gradient(135deg, var(--color-gray-900) 0%, var(--color-gray-800) 100%);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
}

.ceo-message::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
  opacity: 0.3;
  pointer-events: none;
}

.ceo-content-wrapper {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.ceo-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-lg);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--spacing-lg);
}

.ceo-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--spacing-2xl);
  line-height: 1.2;
}

.ceo-message-content {
  font-size: var(--font-size-lg);
  line-height: 2;
  color: rgba(255, 255, 255, 0.9);
  text-align: left;
  margin-bottom: var(--spacing-2xl);
}

.ceo-message-content p {
  margin-bottom: var(--spacing-xl);
}

.ceo-message-content p:last-child {
  margin-bottom: 0;
}

.ceo-message-content strong {
  color: var(--color-white);
  font-weight: 700;
}

.ceo-signature {
  text-align: right;
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-white);
  margin-top: var(--spacing-3xl);
  font-style: italic;
}

/* CEO Section - New Layout (without photo) */
.ceo-content {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 400px;
}

.ceo-text {
  max-width: 900px;
  text-align: center;
}

.section-badge.light {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-lg);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--spacing-lg);
}

.section-title.light {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--spacing-2xl);
  line-height: 1.2;
}

.ceo-quote {
  font-size: var(--font-size-xl);
  font-weight: 500;
  font-style: italic;
  color: rgba(255, 255, 255, 0.95);
  line-height: 1.8;
  margin: var(--spacing-3xl) 0;
  padding: var(--spacing-xl) 0;
  border-top: 2px solid rgba(255, 255, 255, 0.2);
  border-bottom: 2px solid rgba(255, 255, 255, 0.2);
}

.ceo-message-text {
  text-align: left;
  max-width: 800px;
  margin: 0 auto var(--spacing-3xl);
}

.ceo-message-text p {
  font-size: var(--font-size-lg);
  line-height: 2;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-xl);
}

.ceo-message-text p:last-child {
  margin-bottom: 0;
}

.ceo-message-text strong {
  color: var(--color-white);
  font-weight: 700;
}

.ceo-info {
  text-align: center;
  margin-top: var(--spacing-3xl);
  padding-top: var(--spacing-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.ceo-name {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--spacing-xs);
}

.ceo-title {
  font-size: var(--font-size-base);
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
}

/* ========================================
   Number Counter Enhancements
   ======================================== */
.stat-value,
.number-counter {
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  transition: all var(--transition-base);
}

.stat-value.counting,
.number-counter.counting {
  color: var(--color-primary-blue);
}

/* ========================================
   3D Card Hover Effects
   ======================================== */
@media (min-width: 768px) {
  .product-card,
  .tech-card,
  .vision-card {
    transform-style: preserve-3d;
    perspective: 1000px;
  }
}

/* ========================================
   Scroll Animations
   ======================================== */
.fade-in {
  animation: fadeInUp 0.6s ease-out;
}

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

/* Stagger Delays */
.vision-card:nth-child(1) { animation-delay: 0s; }
.vision-card:nth-child(2) { animation-delay: 0.1s; }
.vision-card:nth-child(3) { animation-delay: 0.2s; }

/* ========================================
   Responsive Adjustments
   ======================================== */
@media (max-width: 767px) {
  .vision-icon {
    font-size: 3rem;
  }

  .ci-main-logo {
    font-size: var(--font-size-3xl);
  }

  .ci-sub-logo {
    font-size: var(--font-size-xl);
  }

  .ceo-title,
  .section-title.light {
    font-size: var(--font-size-2xl);
  }

  .ceo-message-content,
  .ceo-message-text {
    font-size: var(--font-size-base);
    text-align: left;
  }

  .ceo-message-text p {
    line-height: 1.8;
  }

  .ceo-quote {
    font-size: var(--font-size-base);
    line-height: 1.7;
  }
}

/* Mobile padding adjustments for key cards */
@media (max-width: 767px) {
  .product-detail,
  .tech-card,
  .rd-highlights {
    padding: var(--spacing-xl);
  }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
  .hero-illustration,
  .ci-particle-visual,
  .dark-mode-toggle,
  .back-to-top,
  .scroll-progress {
    display: none !important;
  }

  .ceo-message {
    background: white !important;
    color: black !important;
  }
}

/* ========================================
   Accessibility
   ======================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ========================================
   Performance Optimizations
   ======================================== */
.vision-card,
.product-card,
.tech-card,
.partner-detail-card {
  will-change: transform;
}

.vision-card:not(:hover),
.product-card:not(:hover),
.tech-card:not(:hover),
.partner-detail-card:not(:hover) {
  will-change: auto;
}

/* ========================================
   Modal Styles
   ======================================== */

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
  overflow-y: auto;
}

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

/* Modal Container */
.modal-container {
  position: relative;
  width: 100%;
  max-width: 900px;
  max-height: 90vh;
  background: var(--color-white);
  border-radius: var(--border-radius-xl);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  transform: translateY(30px) scale(0.95);
  transition: transform var(--transition-base);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-overlay.active .modal-container {
  transform: translateY(0) scale(1);
}

/* Modal Header */
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-2xl);
  border-bottom: 1px solid var(--color-gray-200);
  flex-shrink: 0;
}

.modal-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary-black);
  margin: 0;
  padding-right: var(--spacing-lg);
}

.modal-close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-gray-100);
  border: none;
  border-radius: var(--border-radius-md);
  color: var(--color-gray-600);
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.modal-close:hover {
  background: var(--color-gray-200);
  color: var(--color-primary-black);
  transform: rotate(90deg);
}

.modal-close:active {
  transform: rotate(90deg) scale(0.95);
}

.modal-close svg {
  width: 20px;
  height: 20px;
}

/* Modal Body */
.modal-body {
  padding: var(--spacing-2xl);
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}

.modal-body::-webkit-scrollbar {
  width: 8px;
}

.modal-body::-webkit-scrollbar-track {
  background: var(--color-gray-100);
  border-radius: 4px;
}

.modal-body::-webkit-scrollbar-thumb {
  background: var(--color-gray-300);
  border-radius: 4px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
  background: var(--color-gray-400);
}

/* Modal Footer */
.modal-footer {
  padding: var(--spacing-xl) var(--spacing-2xl);
  border-top: 1px solid var(--color-gray-200);
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-end;
  flex-shrink: 0;
}

.modal-footer:empty {
  display: none;
}

/* Modal Content Styles */
.modal-section {
  margin-bottom: var(--spacing-2xl);
}

.modal-section:last-child {
  margin-bottom: 0;
}

.modal-section-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-primary-blue);
}

.modal-section-content {
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-gray-700);
}

.modal-section-content p {
  margin-bottom: var(--spacing-md);
}

.modal-section-content img {
  width: 100%;
}

.modal-section-content ul {
  list-style: none;
  padding: 0;
  margin: var(--spacing-md) 0;
}

.modal-section-content li {
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  position: relative;
}

.modal-section-content li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-primary-blue);
  font-weight: 700;
}

.modal-section-content strong {
  color: var(--color-primary-black);
  font-weight: 600;
}

/* Modal Grid Layouts */
.modal-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

@media (min-width: 640px) {
  .modal-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.modal-card {
  padding: var(--spacing-lg);
  background: var(--color-gray-50);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-gray-200);
}

.modal-card-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-primary-black);
  margin-bottom: var(--spacing-sm);
}

.modal-card-content {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: 1.6;
}

/* Modal Badge */
.modal-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(30, 64, 175, 0.1);
  color: var(--color-primary-blue);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--border-radius-full);
  margin-right: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

/* Modal Stats */
.modal-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin: var(--spacing-xl) 0;
}

@media (min-width: 640px) {
  .modal-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

.modal-stat {
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--color-gray-50);
  border-radius: var(--border-radius-lg);
}

.modal-stat-value {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-primary-blue);
  display: block;
  margin-bottom: var(--spacing-xs);
}

.modal-stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
}

/* Responsive Modal */
@media (max-width: 768px) {
  .modal-overlay {
    padding: 0;
    align-items: flex-end;
  }

  .modal-container {
    max-width: 100%;
    max-height: 95vh;
    border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
  }

  .modal-header {
    padding: var(--spacing-lg);
  }

  .modal-title {
    font-size: var(--font-size-xl);
  }

  .modal-body {
    padding: var(--spacing-lg);
  }

  .modal-footer {
    padding: var(--spacing-lg);
  }

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

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

/* Dark Mode Support for Modal */
.dark-mode .modal-container {
  background: var(--color-gray-800);
}

.dark-mode .modal-header,
.dark-mode .modal-footer {
  border-color: var(--color-gray-700);
}

.dark-mode .modal-title {
  color: var(--color-white);
}

.dark-mode .modal-close {
  background: var(--color-gray-700);
  color: var(--color-gray-300);
}

.dark-mode .modal-close:hover {
  background: var(--color-gray-600);
  color: var(--color-white);
}

.dark-mode .modal-body::-webkit-scrollbar-track {
  background: var(--color-gray-700);
}

.dark-mode .modal-body::-webkit-scrollbar-thumb {
  background: var(--color-gray-600);
}

.dark-mode .modal-section-title {
  color: var(--color-white);
}

.dark-mode .modal-section-content {
  color: var(--color-gray-300);
}

.dark-mode .modal-card {
  background: var(--color-gray-700);
  border-color: var(--color-gray-600);
}

.dark-mode .modal-card-title {
  color: var(--color-white);
}

.dark-mode .modal-card-content {
  color: var(--color-gray-400);
}

.dark-mode .modal-stat {
  background: var(--color-gray-700);
}

.dark-mode .modal-stat-label {
  color: var(--color-gray-400);
}

/* Prevent Body Scroll When Modal is Open */
body.modal-open {
  overflow: hidden;
}

/* ========================================
   Section Indicator (Side Navigation)
   ======================================== */

.section-indicator {
  position: fixed;
  right: var(--spacing-xl);
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

body.scrolled .section-indicator {
  opacity: 1;
  visibility: visible;
}

.indicator-items {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: center;
}

.indicator-item {
  position: relative;
  display: block;
  padding: var(--spacing-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.indicator-item::before {
  content: attr(title);
  position: absolute;
  right: calc(100% + var(--spacing-md));
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-gray-800);
  color: var(--color-white);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  pointer-events: none;
}

.indicator-item:hover::before {
  opacity: 1;
  visibility: visible;
  right: calc(100% + var(--spacing-sm));
}

.indicator-dot {
  display: block;
  width: 10px;
  height: 10px;
  background: var(--color-gray-400);
  border-radius: 50%;
  border: 2px solid var(--color-white);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: all var(--transition-fast);
}

.indicator-item:hover .indicator-dot {
  transform: scale(1.3);
  background: var(--color-gray-600);
}

.indicator-item.active .indicator-dot {
  width: 14px;
  height: 14px;
  background: var(--color-primary-blue);
  border-color: var(--color-white);
  box-shadow: 0 0 0 4px rgba(30, 64, 175, 0.2);
}

/* Hide on small screens */
@media (max-width: 1024px) {
  .section-indicator {
    display: none;
  }
}

/* ========================================
   Current Section Label
   ======================================== */

.current-section-label {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 99;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: var(--spacing-sm) var(--spacing-xl);
  border-radius: var(--border-radius-full);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  pointer-events: none;
}

.current-section-label.show {
  opacity: 1;
  visibility: visible;
  top: 90px;
}

.section-label-text {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary-blue);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.section-label-text::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--color-primary-blue);
  border-radius: 50%;
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* Dark mode support */
.dark-mode .current-section-label {
  background: rgba(31, 41, 55, 0.95);
}

.dark-mode .section-label-text {
  color: #60A5FA;
}

.dark-mode .section-label-text::before {
  background: #60A5FA;
}

/* Hide on desktop, show on mobile/tablet */
@media (min-width: 1024px) {
  .current-section-label {
    display: none;
  }
}

/* ========================================
   Enhanced Navigation Active State
   ======================================== */

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary-blue);
  transition: width var(--transition-fast);
}

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

.nav-link.active {
  color: var(--color-primary-blue);
  font-weight: 600;
}

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

/* Mobile nav active state */
.nav-link-mobile.active {
  background: rgba(30, 64, 175, 0.1);
  color: var(--color-primary-blue);
  font-weight: 600;
  border-left: 3px solid var(--color-primary-blue);
}