/* Variables CSS mejoradas */
:root {
  /* Colores principales */
  --primary-color: #007BFF;
  --primary-dark: #0056B3;
  --primary-light: #E3F2FD;
  --secondary-color: #6C757D;
  --accent-color: #28A745;
  
  /* Colores de texto */
  --text-primary: #212529;
  --text-secondary: #6C757D;
  --text-muted: #ADB5BD;
  --text-white: #FFFFFF;
  
  /* Colores de fondo */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8F9FA;
  --bg-dark: #122833;
  --bg-light: #E9ECEF;
  
  /* Colores de estado */
  --success-color: #28A745;
  --warning-color: #FFC107;
  --danger-color: #DC3545;
  --info-color: #17A2B8;
  
  /* Sombras */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 15px 35px rgba(0, 0, 0, 0.1);
  
  /* Transiciones */
  --transition-fast: all 0.2s ease;
  --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s ease;
  
  /* Espaciado */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  
  /* Tipografía */
  --font-family-primary: 'Figtree', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  /* Bordes */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 1rem;
  --border-radius-xl: 1.5rem;
  --border-radius-full: 50%;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-popover: 1050;
  --z-tooltip: 1060;
}
/* Reset y estilos base */
* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  padding-top: 5rem;
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  font-weight: 400;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Utilidades */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xxl);
  text-align: center;
}

.lead {
  font-size: var(--font-size-xl);
  font-weight: 300;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* Botones */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--border-radius-md);
  transition: var(--transition-normal);
  cursor: pointer;
  border: 2px solid transparent;
  text-align: center;
  min-width: 140px;
}

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

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

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

.btn-secondary:hover {
  background-color: var(--primary-color);
  color: var(--text-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: var(--z-fixed);
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
  border-bottom: 1px solid rgba(0, 123, 255, 0.1);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0 auto;
  padding: var(--spacing-md);
  width: 100%;
  max-width: 1200px;
  box-sizing: border-box;
}

.logo img {
  max-width: 100%;
  height: auto;
  max-height: 4.5rem;
  min-height: 3.5rem;
  transition: var(--transition-normal);
}

.logo img:hover {
  transform: scale(1.05);
}

/* Navegación */
.nav-menu {
  position: relative;
}

.nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}

.nav-list li {
  margin-left: var(--spacing-xl);
}

.nav-link {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 600;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-md);
  transition: var(--transition-normal);
  position: relative;
  display: block;
}

.nav-link:hover {
  color: var(--primary-color);
  background-color: rgba(0, 123, 255, 0.1);
  transform: translateY(-1px);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition-normal);
  transform: translateX(-50%);
}

.nav-link:hover::after {
  width: 80%;
}

.cta-button {
  background-color: var(--primary-color);
  color: var(--text-white) !important;
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-sm) var(--spacing-lg);
}

.cta-button:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.cta-button::after {
  display: none;
}

/* Mobile menu toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 2rem;
  height: 2rem;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: var(--z-modal);
}

.mobile-menu-toggle span {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition-normal);
  transform-origin: 1px;
}

.mobile-menu-toggle[aria-expanded="true"] span:first-child {
  transform: rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: translateX(20px);
}

.mobile-menu-toggle[aria-expanded="true"] span:last-child {
  transform: rotate(-45deg);
}

/* Hero Section */
.main-video-section {
  position: relative;
  background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('background.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  overflow: hidden;
}

.video-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--text-white);
  z-index: 1;
  animation: fadeInUp 1s ease-out;
  max-width: 900px;
  padding: 0 var(--spacing-xl);
}

.video-overlay h1 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-lg);
  font-weight: 800;
  text-shadow: 3px 3px 12px rgba(0, 0, 0, 0.9);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: #ffffff;
  animation: slideInDown 1s ease-out 0.3s both;
}

.video-overlay p {
  font-size: var(--font-size-xl);
  font-weight: 400;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.9);
  color: #ffffff;
  animation: slideInUp 1s ease-out 0.6s both;
  margin-bottom: var(--spacing-xxl);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
  animation: slideInUp 1s ease-out 0.9s both;
}

/* Animaciones */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translate(-50%, -40%);
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%);
  }
}

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

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

/* Services Section */
.services-section {
  padding: var(--spacing-xxl) 0;
  background-color: var(--bg-secondary);
}

.services-section h2 {
  font-size: var(--font-size-3xl);
  color: var(--primary-color);
  margin-bottom: var(--spacing-lg);
  font-weight: 700;
  text-align: center;
}

.services-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xxl);
}

.service-card {
  background-color: var(--bg-primary);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-xxl);
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
  border: 1px solid rgba(0, 123, 255, 0.1);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
  transform: scaleX(0);
  transition: var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-color);
}

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

.service-features {
  list-style: none;
  padding: 0;
  margin: var(--spacing-lg) 0 0 0;
  text-align: left;
}

.service-features li {
  padding: var(--spacing-xs) 0;
  position: relative;
  padding-left: var(--spacing-lg);
  color: var(--text-secondary);
}

.service-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
}

/* Imagen circular */
.circular-image {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 1.5rem;
  border: 3px solid var(--azul-claro);
  transition: var(--transicion);
  position: relative;
}

.circular-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, rgba(0, 123, 255, 0.1), rgba(0, 86, 179, 0.1));
  opacity: 0;
  transition: var(--transicion);
  border-radius: 50%;
}

.service-card:hover .circular-image {
  transform: scale(1.05);
  border-color: var(--azul-oscuro);
}

.service-card:hover .circular-image::before {
  opacity: 1;
}

.circular-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transicion);
}

.service-card:hover .circular-image img {
  transform: scale(1.1);
}

.service-card h3 {
  font-size: 1.4rem;
  color: var(--azul-claro);
  margin-bottom: 1rem;
  font-weight: 700;
  transition: var(--transicion);
}

.service-card:hover h3 {
  color: var(--azul-oscuro);
}

.service-card p {
  font-size: 1.1rem;
  color: var(--gris-medio);
  line-height: 1.7;
  transition: var(--transicion);
}

/* About Section */
.history-section {
  background: linear-gradient(135deg, var(--primary-light) 0%, rgba(227, 242, 253, 0.8) 100%);
  padding: var(--spacing-xxl) 0;
  position: relative;
  overflow: hidden;
}

.history-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23007BFF" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="%23007BFF" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="%23007BFF" opacity="0.05"/><circle cx="10" cy="60" r="0.5" fill="%23007BFF" opacity="0.05"/><circle cx="90" cy="40" r="0.5" fill="%23007BFF" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.history-content {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 1;
}

.history-text {
  width: 100%;
  max-width: 900px;
  text-align: center;
  animation: fadeInUp 1s ease-out;
}

.history-text h2 {
  font-size: var(--font-size-3xl);
  color: var(--primary-color);
  margin-bottom: var(--spacing-lg);
  font-weight: 800;
  position: relative;
}

.history-text h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
  border-radius: 2px;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xxl);
}

.stat-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.8);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
}

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

.stat-number {
  display: block;
  font-size: var(--font-size-4xl);
  font-weight: 800;
  color: var(--primary-color);
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

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

/* Clients Section */
.clients-section {
  padding: var(--spacing-xxl) 0;
  background: linear-gradient(135deg, rgba(248, 249, 250, 0.5) 0%, rgba(255, 255, 255, 0.8) 100%);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-md);
  margin: var(--spacing-xxl) 0;
}

.clients-section h2 {
  font-size: var(--font-size-3xl);
  color: var(--primary-color);
  margin-bottom: var(--spacing-lg);
  font-weight: 800;
  position: relative;
  text-align: center;
}

.clients-section h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
  border-radius: 2px;
}

.clients-section p {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-xxl);
  color: var(--text-secondary);
  line-height: 1.7;
  text-align: center;
}

.clients-logos {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xxl);
  flex-wrap: wrap;
  align-items: center;
}

.clients-logos img {
  max-height: 180px;
  width: auto;
  transition: var(--transition-normal);
  filter: grayscale(100%) opacity(0.7);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  background: var(--bg-primary);
  box-shadow: var(--shadow-md);
}

.clients-logos img:hover {
  filter: grayscale(0%) opacity(1);
  transform: translateY(-5px) scale(1.05);
  box-shadow: var(--shadow-lg);
}

/* Contact Section */
.contact-section {
  padding: var(--spacing-xxl) 0;
  background: linear-gradient(135deg, #1a365d 0%, #2d3748 100%);
  color: var(--text-white);
  position: relative;
}

.contact-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: 1;
}

.contact-section h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-lg);
  font-weight: 800;
  text-align: center;
  position: relative;
  z-index: 2;
  color: #ffffff;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xxl);
  margin-top: var(--spacing-xxl);
  position: relative;
  z-index: 2;
}

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

.contact-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--border-radius-lg);
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-item:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.4);
}

.contact-item h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
  color: #ffffff;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
  font-weight: 700;
}

.contact-item p {
  margin: 0;
  font-size: var(--font-size-lg);
  color: #ffffff;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
  font-weight: 500;
}

.contact-item a {
  color: #ffffff;
  text-decoration: none;
  transition: var(--transition-normal);
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
  font-weight: 600;
}

.contact-item a:hover {
  color: var(--primary-light);
  text-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
}

/* Iconos de contacto */
.contact-heading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.contact-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: #ffffff;
}

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

.contact-section .section-subtitle {
  color: #ffffff;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
  font-weight: 500;
  position: relative;
  z-index: 2;
}

/* Scroll to Top Button */
.scroll-to-top {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  width: 50px;
  height: 50px;
  background-color: var(--primary-color);
  color: var(--text-white);
  border: none;
  border-radius: var(--border-radius-full);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-normal);
  z-index: var(--z-tooltip);
}

.scroll-to-top:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.scroll-to-top.show {
  display: flex;
}

/* Footer */
footer {
  background: linear-gradient(135deg, #003E66 0%, var(--bg-dark) 100%);
  position: relative;
  overflow: hidden;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="footer-pattern" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%23ffffff" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23footer-pattern)"/></svg>');
  opacity: 0.3;
}

.footer-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xxl) var(--spacing-md) var(--spacing-xl);
  box-sizing: border-box;
  position: relative;
  z-index: 1;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  padding: var(--spacing-xl) 0;
  color: var(--text-white);
}

.footer-contact h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-lg);
  color: var(--text-white);
}

.footer-contact p {
  margin: var(--spacing-md) 0;
  font-size: var(--font-size-lg);
  line-height: 1.6;
}

.footer-contact a {
  color: var(--text-white);
  text-decoration: none;
  transition: var(--transition-normal);
  font-weight: 500;
}

.footer-contact a:hover {
  color: var(--primary-color);
  text-shadow: 0 0 8px rgba(0, 123, 255, 0.3);
}

.footer-links h4 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-lg);
  color: var(--text-white);
}

.footer-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--text-white);
  text-decoration: none;
  transition: var(--transition-normal);
  opacity: 0.8;
}

/* Alinear enlaces del footer a la derecha */
.footer-links {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
}

.footer-links a:hover {
  color: var(--primary-color);
  opacity: 1;
}

.footer-separator {
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  margin: var(--spacing-xl) 0;
  opacity: 0.3;
}

.footer-bottom {
  padding: var(--spacing-md) 0;
  font-size: var(--font-size-base);
  color: var(--text-white);
  text-align: center;
  font-weight: 400;
  opacity: 0.8;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-legal {
  margin: 0;
  font-size: var(--font-size-sm);
}

.footer-legal a {
  color: var(--text-white);
  text-decoration: none;
  transition: var(--transition-normal);
  opacity: 0.8;
}

.footer-legal a:hover {
  color: var(--primary-color);
  opacity: 1;
}

/* Mobile Responsive Design */
@media (max-width: 768px) {
  /* Header */
  .header-container {
    padding: var(--spacing-md);
    flex-direction: row;
    justify-content: space-between;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .nav-list {
    position: fixed;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100vh;
    background-color: var(--bg-primary);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: var(--transition-normal);
    z-index: var(--z-modal);
    box-shadow: var(--shadow-xl);
  }

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

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

  .nav-link {
    font-size: var(--font-size-xl);
    padding: var(--spacing-md) var(--spacing-lg);
  }
  
  /* Hero Section */
  .main-video-section {
    height: 100vh;
    background-attachment: scroll;
  }
  
  .video-overlay h1 {
    font-size: var(--font-size-3xl);
  }
  
  .video-overlay p {
    font-size: var(--font-size-lg);
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  /* Services */
  .services-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .service-card {
    padding: var(--spacing-xl);
  }

  .circular-image {
    width: 140px;
    height: 140px;
  }

  /* About */
  .history-section {
    padding: var(--spacing-xxl) 0;
  }

  .history-text h2 {
    font-size: var(--font-size-2xl);
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  /* Clients */
  .clients-section {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-xl) 0;
  }

  .clients-section h2 {
    font-size: var(--font-size-2xl);
  }

  .clients-logos {
    flex-direction: column;
    gap: var(--spacing-xl);
  }

  .clients-logos img {
    max-height: 150px;
  }

  /* Contact */
  .contact-info {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  /* Footer */
  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    text-align: center;
  }

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

  .scroll-to-top {
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    width: 45px;
    height: 45px;
  }
}

/* Small Mobile Devices */
@media (max-width: 480px) {
  body {
    font-size: var(--font-size-sm);
  }
  
  .video-overlay h1 {
    font-size: var(--font-size-2xl);
  }
  
  .video-overlay p {
    font-size: var(--font-size-base);
  }
  
  .circular-image {
    width: 120px;
    height: 120px;
  }
  
  .service-card h3 {
    font-size: var(--font-size-lg);
  }
  
  .service-card p {
    font-size: var(--font-size-sm);
  }

  .services-section h2 {
    font-size: var(--font-size-xl);
  }

  .history-text h2 {
    font-size: var(--font-size-xl);
  }

  .history-text p {
    font-size: var(--font-size-base);
  }

  .clients-section h2 {
    font-size: var(--font-size-xl);
  }

  .clients-section p {
    font-size: var(--font-size-lg);
  }
  
  .footer-container {
    padding: var(--spacing-md);
  }

  .hero-actions .btn {
    min-width: 120px;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
  }
}