/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Colors inspired by AEMD branding */
  --primary-color: #1a365d;
  --primary-light: #2d5a87;
  --primary-dark: #0f2a44;
  --secondary-color: #4a90e2;
  --accent-color: #f7fafc;
  --text-primary: #1a202c;
  --text-secondary: #4a5568;
  --text-light: #718096;
  --background: #ffffff;
  --background-alt: #f7fafc;
  --border-color: #e2e8f0;
  --success-color: #38a169;
  --gradient-primary: linear-gradient(135deg, #1a365d 0%, #2d5a87 100%);

  /* Typography */
  --font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Playfair Display", Georgia, serif;

  /* Spacing */
  --container-max-width: 1200px;
  --section-padding: 80px 0;
  --element-spacing: 2rem;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Shadows */
  --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 25px rgba(0, 0, 0, 0.15);
}

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background);
  font-size: 16px;
}

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
  margin-bottom: 1rem;
  line-height: 1.7;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border: none;
  border-radius: 6px;
  font-family: var(--font-primary);
  font-weight: 500;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-medium);
  font-size: 16px;
  line-height: 1.5;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

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

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

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

.btn-large {
  padding: 16px 32px;
  font-size: 18px;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: all var(--transition-medium);
}

.nav-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.nav-logo .logo {
  height: 50px;
  width: auto;
}

.nav-list {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

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

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

.nav-link.cta-button {
  background: var(--gradient-primary);
  color: white;
  padding: 8px 16px;
  border-radius: 6px;
}

/* Dropdown Menus */
.dropdown {
  position: relative;
}

.dropdown-content {
  position: absolute;
  top: 100%;
  left: 0;
  background: white;
  min-width: 250px;
  box-shadow: var(--shadow-lg);
  border-radius: 8px;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-medium);
  z-index: 1001;
}

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

.dropdown-content a {
  display: block;
  padding: 8px 0;
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.dropdown-content a:hover {
  color: var(--primary-color);
}

.dropdown-subsection {
  margin-left: 1rem;
  border-left: 2px solid var(--border-color);
  padding-left: 1rem;
}

.dropdown-subsection a {
  font-size: 14px;
  color: var(--text-secondary);
}

/* Mobile Navigation */
.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.bar {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  margin: 3px 0;
  transition: var(--transition-fast);
}

/* Hero Slider */
.hero-slider {
  height: 720px;
  position: relative;
  overflow: hidden;
  margin-top: 80px;
}

.slider-container {
  height: 100%;
  position: relative;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity var(--transition-slow);
  background: var(--gradient-primary);
}

.slide.active {
  opacity: 1;
}

.slide-content {
  height: 100%;
  display: flex;
  align-items: center;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 20px;
  gap: 4rem;
}

.slide-text {
  flex: 1;
  color: white;
}

.slide-text h1 {
  color: white;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.slide-text p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.slide-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.slide-media {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.slide-media img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
}

/* Video Container */
.video-container {
  position: relative;
  width: 100%;
  max-width: 600px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.video-container video {
  width: 100%;
  height: auto;
  display: block;
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-medium);
}

.video-overlay:hover {
  background: rgba(0, 0, 0, 0.5);
}

.play-button {
  transition: transform var(--transition-medium);
}

.video-overlay:hover .play-button {
  transform: scale(1.1);
}

/* Video Modal */
.video-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-medium);
}

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

.video-modal-content {
  position: relative;
  width: 90%;
  max-width: 1000px;
  background: black;
  border-radius: 12px;
  overflow: hidden;
}

.video-modal-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: none;
  border: none;
  color: white;
  font-size: 30px;
  cursor: pointer;
  z-index: 2001;
}

.video-modal video {
  width: 100%;
  height: auto;
}

/* Slider Navigation */
.slider-nav {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 2rem;
}

.slider-btn {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-medium);
}

.slider-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

.slider-dots {
  display: flex;
  gap: 0.5rem;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.5);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-medium);
}

.dot.active {
  background: white;
  border-color: white;
}

/* Main Content Sections */
.main-content {
  padding-top: 0;
}

section {
  padding: var(--section-padding);
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 4rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

/* About Section */
.about-section {
  background: var(--background-alt);
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
  margin-top: 4rem;
}

.pillar {
  text-align: center;
  padding: 2rem;
  background: white;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-medium);
}

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

.pillar-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-color);
  font-family: var(--font-display);
  margin-bottom: 1rem;
}

.pillar h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

/* Innovation Section */
.innovation-section {
  background: white;
}

.innovation-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.innovation-text h2 {
  margin-bottom: 1.5rem;
}

.innovation-text p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.innovation-image img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
}

/* Services Section */
.services-section {
  background: var(--background-alt);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.service-card {
  background: white;
  padding: 2.5rem 2rem;
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-medium);
}

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

.service-icon {
  margin-bottom: 1.5rem;
}

.service-icon img {
  width: 80px;
  height: 80px;
  opacity: 0.8;
}

.service-card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

/* CTA Section */
.cta-section {
  background: var(--gradient-primary);
  color: white;
  text-align: center;
}

.cta-content h2 {
  color: white;
  margin-bottom: 1rem;
}

.cta-content p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

/* Footer */
.footer {
  background: var(--text-primary);
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-logo-img {
  height: 40px;
  margin-bottom: 1rem;
}

.footer-contact p {
  margin-bottom: 0.5rem;
}

.footer-contact a {
  color: var(--secondary-color);
  text-decoration: none;
}

.footer-section h4 {
  margin-bottom: 1rem;
  color: white;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section ul li a {
  color: #cbd5e0;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
  color: var(--secondary-color);
}

.footer-bottom {
  border-top: 1px solid #4a5568;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  color: #cbd5e0;
  text-decoration: none;
  font-size: 14px;
}

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

/* Page Header Styles */
.page-header {
  background: var(--gradient-primary);
  color: white;
  padding: 120px 0 60px;
  margin-top: 80px;
  text-align: center;
}

.page-header h1 {
  color: white;
  margin-bottom: 1rem;
}

.page-header p {
  font-size: 1.2rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

.breadcrumb {
  margin-bottom: 2rem;
  font-size: 14px;
  opacity: 0.8;
}

.breadcrumb a {
  color: white;
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* Content Sections */
.content-section {
  padding: var(--section-padding);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .innovation-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background: white;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    transition: left var(--transition-medium);
    padding: 2rem;
    overflow-y: auto;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-list {
    flex-direction: column;
    gap: 1rem;
    width: 100%;
  }

  .nav-toggle {
    display: flex;
  }

  .dropdown-content {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: var(--background-alt);
    margin-top: 0.5rem;
  }

  .slide-content {
    flex-direction: column;
    text-align: center;
    gap: 2rem;
    padding: 2rem 20px;
  }

  .slide-buttons {
    justify-content: center;
  }

  .pillars-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

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

  .page-header {
    padding: 100px 0 40px;
  }
}

@media (max-width: 480px) {
  .hero-slider {
    height: 600px;
  }

  .slide-text h1 {
    font-size: 2rem;
  }

  .slide-text p {
    font-size: 1rem;
  }

  .btn {
    padding: 10px 20px;
    font-size: 14px;
  }

  .slider-nav {
    bottom: 20px;
    gap: 1rem;
  }

  .slider-btn {
    width: 40px;
    height: 40px;
  }
}