/* Base Styles */
:root {
  --container-width: 1200px;
  --header-height: 70px;
  --border-radius: 8px;
  --transition-speed: 0.3s;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;
  --font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

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

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

body {
  font-family: var(--font-family);
  background-color: var(--background);
  color: var(--foreground);
  line-height: 1.6;
  overflow-x: hidden;
  min-width: 320px;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

a:hover {
  color: var(--accent);
}

ul,
ol {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.section-title {
  font-size: 2rem;
  margin-bottom: var(--spacing-lg);
  text-align: center;
  position: relative;
  padding-bottom: var(--spacing-md);
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: all var(--transition-speed) ease;
  text-align: center;
}

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

.btn-primary:hover {
  background-color: var(--accent);
  color: var(--accent-foreground);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--secondary);
  color: var(--secondary-foreground);
}

.btn-secondary:hover {
  background-color: var(--muted);
  transform: translateY(-2px);
}

.btn-hero {
  background-color: var(--primary);
  color: var(--primary-foreground);
  padding: 1rem 2rem;
  font-size: 1.1rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

.btn-hero:hover {
  background-color: var(--accent);
  color: var(--accent-foreground);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  color: #fff;
}

.pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(14, 165, 233, 0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(14, 165, 233, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(14, 165, 233, 0);
  }
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--background);
  box-shadow: var(--shadow-sm);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

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

.logo-container {
  display: flex;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
}

.logo-svg {
  height: 40px;
  width: auto;
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: none;
}

.nav-list li {
  margin: 0 var(--spacing-md);
}

.nav-list a {
  color: var(--foreground);
  font-weight: 500;
  position: relative;
}

.nav-list a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: width var(--transition-speed) ease;
}

.nav-list a:hover {
  color: var(--primary);
}

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

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 21px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 10;
}

.menu-icon {
  position: relative;
  width: 30px;
  height: 3px;
  background-color: var(--foreground);
  transition: all var(--transition-speed) ease;
}

.menu-icon::before,
.menu-icon::after {
  content: "";
  position: absolute;
  width: 30px;
  height: 3px;
  background-color: var(--foreground);
  transition: all var(--transition-speed) ease;
}

.menu-icon::before {
  transform: translateY(-9px);
}

.menu-icon::after {
  transform: translateY(9px);
}

.menu-toggle[aria-expanded="true"] .menu-icon {
  transform: translateX(-50px);
  background: transparent;
}

.menu-toggle[aria-expanded="true"] .menu-icon::before {
  transform: rotate(45deg) translate(35px, -35px);
}

.menu-toggle[aria-expanded="true"] .menu-icon::after {
  transform: rotate(-45deg) translate(35px, 35px);
}

.header-actions {
  display: flex;
  align-items: center;
}

.theme-toggle {
  margin-right: var(--spacing-md);
  background: none;
  border: none;
  color: var(--foreground);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  transition: background-color var(--transition-speed) ease;
}

.theme-toggle:hover {
  background-color: var(--muted);
}

.sun-icon {
  display: none;
}

.moon-icon {
  display: block;
}

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

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

/* Mobile Menu */
@media (max-width: 767px) {
  .nav-list {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--background);
    box-shadow: var(--shadow-lg);
    padding: calc(var(--header-height) + var(--spacing-lg)) var(--spacing-lg) var(--spacing-lg);
    flex-direction: column;
    transition: right var(--transition-speed) ease;
    z-index: 5;
  }

  .menu-toggle[aria-expanded="true"] + .nav-list {
    right: 0;
  }

  .nav-list li {
    margin: var(--spacing-md) 0;
  }

  .header-actions .btn {
    display: none;
  }
}

/* Hero Section */
.hero-section {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: var(--spacing-xl) 0;
}

.video-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.video-background video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.3));
}

.hero-content {
  color: white;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

.hero-content h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.stats-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: var(--spacing-xl);
  gap: var(--spacing-lg);
}

.stat-item {
  text-align: center;
  padding: var(--spacing-md);
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(5px);
  border-radius: var(--border-radius);
  min-width: 120px;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero-info {
  background-color: var(--card);
  color: var(--card-foreground);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  margin-top: var(--spacing-xl);
  box-shadow: var(--shadow-md);
}

.hero-info h2 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--primary);
}

.hero-info p {
  margin-bottom: var(--spacing-md);
}

/* Products Section */
.products-section {
  padding: var(--spacing-xl) 0;
  background-color: var(--background);
}

.product-carousel {
  position: relative;
  margin-bottom: var(--spacing-xl);
}

.carousel-nav {
  display: flex;
  justify-content: space-between;
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  z-index: 2;
  padding: 0 var(--spacing-md);
}

.carousel-btn {
  background-color: var(--card);
  color: var(--card-foreground);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-speed) ease;
}

.carousel-btn:hover {
  background-color: var(--primary);
  color: var(--primary-foreground);
  transform: scale(1.1);
}

.carousel-container {
  overflow: hidden;
}

.carousel-track {
  display: flex;
  transition: transform var(--transition-speed) ease;
}

.product-card {
  flex: 0 0 100%;
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
}

.product-image {
  border-radius: var(--border-radius);
  overflow: hidden;
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-md);
}

.product-info {
  padding: var(--spacing-md);
  background-color: var(--card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.product-info h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--primary);
}

.product-specs {
  margin: var(--spacing-md) 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--spacing-sm);
}

.spec-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-sm);
  background-color: var(--muted);
  border-radius: var(--border-radius);
}

.spec-label {
  font-size: 0.75rem;
  color: var(--muted-foreground);
  margin-bottom: var(--spacing-xs);
}

.spec-value {
  font-weight: 600;
}

.comparison-table {
  margin-top: var(--spacing-xl);
}

.comparison-table h3 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.table-container {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th,
td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border);
}

th {
  background-color: var(--muted);
  font-weight: 600;
}

tr:nth-child(even) {
  background-color: var(--card);
}

/* Tech Section */
.tech-section {
  padding: 550px 0;
  background-color: var(--background);
  position: relative;
  overflow: hidden;
}

.tech-infographic {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--spacing-xl);
}

.tech-categories {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.tech-category {
  flex: 1;
  min-width: 200px;
  max-width: 300px;
  padding: var(--spacing-md);
  background-color: var(--card);
  border-radius: var(--border-radius);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-speed) ease;
  box-shadow: var(--shadow-sm);
}

.tech-category:hover,
.tech-category.active {
  background-color: var(--primary);
  color: var(--primary-foreground);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.category-icon {
  margin-bottom: var(--spacing-sm);
}

.tech-details {
  position: relative;
  min-height: 300px;
}

.tech-detail {
  position: absolute;
  top: 0;
  left: 0;
  width: initial;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-speed) ease;
  padding: var(--spacing-lg);
  background-color: var(--card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

.tech-detail.active {
  opacity: 1;
  visibility: visible;
}

.tech-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.feature-item {
  padding: var(--spacing-md);
  background-color: var(--muted);
  border-radius: var(--border-radius);
}

.feature-item h4 {
  margin-bottom: var(--spacing-sm);
  color: var(--primary);
}

.tech-animation {
  margin: var(--spacing-xl) 0;
}

.animation-container {
  max-width: 800px;
  margin: 0 auto;
}

.tech-svg {
  width: 100%;
  height: auto;
}

.tech-path {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: dash 3s linear forwards;
}

.tech-node {
  opacity: 0;
  animation: fadeIn 0.5s ease forwards;
  animation-delay: 2s;
}

.tech-node:nth-child(3) {
  animation-delay: 2.5s;
}

.tech-node:nth-child(4) {
  animation-delay: 3s;
}

@keyframes dash {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

.tech-innovation {
  padding: var(--spacing-lg);
  background-color: var(--card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

.tech-innovation h3 {
  color: var(--primary);
  margin-bottom: var(--spacing-md);
}

.tech-innovation p {
  margin-bottom: var(--spacing-md);
}

/* Contribution Section */
.contribution-section {
  padding: 120px 0;
  background-color: var(--background);
}

.contribution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.contribution-item {
  padding: var(--spacing-lg);
  background-color: var(--card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-speed) ease;
}

.contribution-item:hover {
  transform: translateY(-5px);
}

.contribution-icon {
  margin-bottom: var(--spacing-md);
  color: var(--primary);
}

.contribution-item h3 {
  margin-bottom: var(--spacing-md);
  color: var(--primary);
}

.contribution-stats {
  display: flex;
  justify-content: space-around;
  margin-top: var(--spacing-lg);
}

.stat-counter {
  text-align: center;
}

.counter {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  display: block;
}

.counter-label {
  font-size: 0.875rem;
  color: #fff;
}

.testimonials {
  margin-top: var(--spacing-xl);
}

.testimonials h3 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.testimonial-carousel {
  position: relative;
  overflow: hidden;
}

.testimonial-track {
  display: flex;
  transition: transform var(--transition-speed) ease;
}

.testimonial-item {
  flex: 0 0 100%;
  padding: var(--spacing-lg);
  background-color: var(--card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

.testimonial-content {
  margin-bottom: var(--spacing-md);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.author-name {
  font-weight: 600;
}

.author-title {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.testimonial-dots {
  display: flex;
  justify-content: center;
  margin-top: var(--spacing-md);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--muted);
  margin: 0 var(--spacing-xs);
  cursor: pointer;
  transition: background-color var(--transition-speed) ease;
}

.dot.active {
  background-color: var(--primary);
}

.impact-gallery {
  margin-top: var(--spacing-xl);
}

.impact-gallery h3 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.gallery-item {
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-speed) ease;
}

.gallery-item:hover {
  transform: scale(1.05);
}

/* Team Section */
.team-section {
  padding: var(--spacing-xl) 0;
  background-color: var(--background);
}

.location-map {
  margin-bottom: var(--spacing-xl);
}

.location-map h3 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.map-container {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.turkey-map {
  position: relative;
}

.map-svg {
  width: 100%;
  height: auto;
}

.location-point {
  cursor: pointer;
  transition: r var(--transition-speed) ease;
}

.location-point:hover {
  r: 12;
}

.location-info {
  position: absolute;
  background-color: var(--card);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-speed) ease;
  z-index: 2;
}

.istanbul-info {
  top: 170px;
  left: 300px;
  transform: translate(-50%, -100%);
}

.ankara-info {
  top: 200px;
  left: 450px;
  transform: translate(-50%, -100%);
}

.izmir-info {
  top: 220px;
  left: 200px;
  transform: translate(-50%, -100%);
}

.location-point:hover + .location-info,
.location-info:hover {
  opacity: 1;
  visibility: visible;
}

.employee-counter {
  text-align: center;
  margin-top: var(--spacing-lg);
}

.counter-container {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--primary);
  color: var(--primary-foreground);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

.counter-value {
  font-size: 2rem;
  font-weight: 700;
}

.counter-label {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.team-carousel {
  margin-top: var(--spacing-xl);
}

.team-carousel h3 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.carousel-container {
  position: relative;
  overflow: hidden;
}

.team-photo {
  flex: 0 0 100%;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.employee-stories {
  margin-top: var(--spacing-xl);
}

.employee-stories h3 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.stories-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.story-card {
  padding: var(--spacing-lg);
  background-color: var(--card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  height: 100%;
}

.story-content h4 {
  color: var(--primary);
  margin-bottom: var(--spacing-xs);
}

.story-content p:first-of-type {
  color: var(--muted-foreground);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-md);
}

.career-cta {
  margin-top: var(--spacing-xl);
  text-align: center;
  padding: var(--spacing-lg);
  background-color: var(--card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

.career-cta h3 {
  margin-bottom: var(--spacing-md);
  color: var(--primary);
}

.career-cta p {
  margin-bottom: var(--spacing-lg);
}

/* Future Section */
.future-section {
  padding: var(--spacing-xl) 0;
  background-color: var(--background);
}

.timeline {
  margin-bottom: var(--spacing-xl);
  overflow-x: auto;
}

.timeline-track {
  display: flex;
  min-width: 800px;
  padding: var(--spacing-lg) 0;
}

.timeline-item {
  flex: 1;
  position: relative;
  padding-top: 30px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--border);
}

.timeline-year {
  position: absolute;
  top: -25px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--background);
  padding: 0 var(--spacing-sm);
  font-weight: 600;
}

.timeline-icon {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 24px;
  background-color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-foreground);
}

.timeline-content {
  padding: var(--spacing-md);
  margin-top: var(--spacing-md);
  background-color: var(--card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.timeline-content h3 {
  font-size: 1rem;
  margin-bottom: var(--spacing-sm);
  color: var(--primary);
}

.timeline-item.future .timeline-content {
  background-color: var(--muted);
  border: 2px dashed var(--primary);
}

.future-vision {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--spacing-xl);
}

.vision-model {
  margin-bottom: var(--spacing-lg);
}

.model-container {
  max-width: 600px;
  margin: 0 auto;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.vision-content {
  padding: var(--spacing-lg);
  background-color: var(--card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

.vision-content h3 {
  color: var(--primary);
  margin-bottom: var(--spacing-md);
}

.vision-quote {
  margin: var(--spacing-lg) 0;
  padding: var(--spacing-md) var(--spacing-lg);
  border-left: 4px solid var(--primary);
  background-color: var(--muted);
  font-style: italic;
}

.vision-quote cite {
  display: block;
  margin-top: var(--spacing-sm);
  font-style: normal;
  font-weight: 600;
  text-align: right;
}

.investment-info {
  margin-top: var(--spacing-lg);
}

.investment-info h4 {
  margin-bottom: var(--spacing-md);
  color: var(--primary);
}

.investment-chart {
  display: flex;
  justify-content: space-around;
  align-items: flex-end;
  height: 200px;
}

.chart-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 60px;
}

.bar-label {
  margin-bottom: var(--spacing-sm);
}

.bar-value {
  width: 40px;
  background-color: var(--primary);
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  transition: height 1s ease;
}

.bar-value.future {
  background-color: var(--accent);
}

.value-label {
  margin-top: var(--spacing-sm);
  font-size: 0.875rem;
  font-weight: 600;
}

.strategic-goals {
  margin-top: var(--spacing-xl);
}

.strategic-goals h3 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.goals-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.goal-item {
  padding: var(--spacing-lg);
  background-color: var(--card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: transform var(--transition-speed) ease;
}

.goal-item:hover {
  transform: translateY(-5px);
}

.goal-icon {
  margin-bottom: var(--spacing-md);
  color: var(--primary);
}

.goal-item h4 {
  margin-bottom: var(--spacing-md);
  color: var(--primary);
}

/* Contact Section */
.contact-section {
  padding: var(--spacing-xl) 0;
  background-color: var(--background);
}

.contact-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.newsletter-form {
  padding: var(--spacing-lg);
  background-color: var(--card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

.newsletter-form h3 {
  margin-bottom: var(--spacing-md);
  color: var(--primary);
}

.newsletter-form p {
  margin-bottom: var(--spacing-lg);
}

.subscription-form {
  display: grid;
  gap: var(--spacing-md);
}

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

.form-group label {
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
}

.form-group input,
.form-group select {
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  background-color: var(--input);
  color: var(--foreground);
  font-family: inherit;
  transition: border-color var(--transition-speed) ease;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(14, 165, 233, 0.2);
}

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

.checkbox-label {
  display: flex;
  align-items: center;
  cursor: pointer;
}

.checkbox-label input {
  margin-right: var(--spacing-sm);
}

.faq-section {
  padding: var(--spacing-lg);
  background-color: var(--card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

.faq-section h3 {
  margin-bottom: var(--spacing-lg);
  color: var(--primary);
}

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

.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  overflow: hidden;
}

.accordion-header {
  width: 100%;
  padding: var(--spacing-md);
  background-color: var(--muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: background-color var(--transition-speed) ease;
}

.accordion-header:hover {
  background-color: var(--secondary);
}

.accordion-title {
  font-weight: 600;
  flex-grow: 1;
  text-align: left;
  color: #fff;
}

.accordion-icon {
  position: relative;
  width: 16px;
  height: 16px;
}

.accordion-icon::before,
.accordion-icon::after {
  content: "";
  position: absolute;
  background-color: var(--foreground);
  transition: transform var(--transition-speed) ease;
}

.accordion-icon::before {
  top: 7px;
  left: 0;
  width: 16px;
  height: 2px;
}

.accordion-icon::after {
  top: 0;
  left: 7px;
  width: 2px;
  height: 16px;
}

.accordion-header[aria-expanded="true"] .accordion-icon::after {
  transform: rotate(90deg);
}

.accordion-content {
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-speed) ease, padding var(--transition-speed) ease;
}

.accordion-header[aria-expanded="true"] + .accordion-content {
  padding: var(--spacing-md);
  max-height: 500px;
}

.social-feed {
  margin-top: var(--spacing-xl);
}

.social-feed h3 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.social-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.social-post {
  padding: var(--spacing-md);
  background-color: var(--card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-speed) ease;
}

.social-post:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.post-header {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.post-icon {
  margin-right: var(--spacing-sm);
  color: var(--primary);
}

.post-author {
  font-weight: 600;
}

.post-content {
  margin-bottom: var(--spacing-md);
}

.post-date {
  font-size: 0.875rem;
  color: var(--muted-foreground);
  text-align: right;
}

/* Footer */
footer {
  background-color: var(--card);
  color: var(--card-foreground);
  padding: var(--spacing-xl) 0 var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-column h3 {
  margin-bottom: var(--spacing-md);
  font-size: 1.25rem;
}

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

.footer-links a {
  color: var(--card-foreground);
  transition: color var(--transition-speed) ease;
}

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

address {
  font-style: normal;
  line-height: 1.8;
}

.social-icons {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--muted);
  color: var(--muted-foreground);
  transition: all var(--transition-speed) ease;
}

.social-icon:hover {
  background-color: var(--primary);
  color: var(--primary-foreground);
  transform: translateY(-3px);
}

.quick-subscribe {
  margin-top: var(--spacing-lg);
}

.quick-subscribe h4 {
  margin-bottom: var(--spacing-sm);
}

.quick-form {
  display: flex;
  gap: var(--spacing-sm);
}

.quick-form input {
  flex-grow: 1;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  background-color: var(--input);
  color: var(--foreground);
}

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

.footer-info {
  margin: var(--spacing-md) 0;
}

.copyright {
  margin-bottom: var(--spacing-xs);
}

.legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.legal-links a {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.back-to-top {
  margin-left: auto;
}

#back-to-top-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--primary);
  color: var(--primary-foreground);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-speed) ease;
}

#back-to-top-btn:hover {
  transform: translateY(-5px);
}

.cookie-notice {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--card);
  padding: var(--spacing-md);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-md);
  z-index: 1000;
  transform: translateY(100%);
  transition: transform var(--transition-speed) ease;
}

.cookie-notice.show {
  transform: translateY(0);
}

.cookie-notice p {
  flex-grow: 1;
}

.cookie-more {
  font-size: 0.875rem;
  text-decoration: underline;
}

/* Media Queries */
@media (min-width: 768px) {
  .nav-list {
    display: flex;
  }

  .menu-toggle {
    display: none;
  }

  .hero-content h1 {
    font-size: 3.5rem;
  }

  .hero-subtitle {
    font-size: 1.5rem;
  }

  .product-card {
    flex-direction: row;
    align-items: center;
  }

  .product-image {
    flex: 0 0 50%;
    margin-right: var(--spacing-lg);
    margin-bottom: 0;
  }

  .tech-infographic {
    flex-direction: row;
  }

  .tech-categories {
    flex-direction: column;
    flex: 0 0 250px;
    margin-right: var(--spacing-lg);
    margin-bottom: 0;
  }

  .future-vision {
    flex-direction: row;
    align-items: center;
  }

  .vision-model {
    flex: 0 0 50%;
    margin-right: var(--spacing-lg);
    margin-bottom: 0;
  }

  .contact-content {
    flex-direction: row;
  }

  .newsletter-form,
  .faq-section {
    flex: 1;
  }
}

@media (min-width: 1024px) {
  .hero-content h1 {
    font-size: 4rem;
  }

  .section-title {
    font-size: 2.5rem;
  }
}

/* Dark Mode Adjustments */
.dark .video-overlay {
  background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.4));
}

.dark .accordion-header {
  background-color: var(--card);
}

.dark .accordion-header:hover {
  background-color: var(--muted);
}

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

.fade-in {
  animation: fadeIn 0.5s ease forwards;
}

.fade-in-delay-1 {
  animation-delay: 0.2s;
}

.fade-in-delay-2 {
  animation-delay: 0.4s;
}

.fade-in-delay-3 {
  animation-delay: 0.6s;
}