/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
  padding: 0 var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  height: 50px;
  width: auto;
  object-fit: contain;
}

.main-nav {
  display: none;
}

.nav-list {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-link {
  color: var(--color-text-main);
  font-weight: 500;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--color-primary);
  transition: width var(--transition-fast);
}

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

.mobile-menu-btn {
  display: block;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-secondary);
  cursor: pointer;
}

/* Mobile Nav Styles */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 400px;
  height: 100vh;
  background-color: var(--color-white);
  box-shadow: var(--shadow-lg);
  z-index: 1001;
  padding: var(--spacing-xl) var(--spacing-lg);
  transition: right var(--transition-normal);
  display: flex;
  flex-direction: column;
}

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

.mobile-nav .nav-list {
  flex-direction: column;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.close-menu-btn {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--color-text-main);
  cursor: pointer;
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.overlay.active {
  opacity: 1;
  pointer-events: auto;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  margin-top: 80px; /* Offset for fixed header */
  background-color: var(--color-secondary);
  color: var(--color-white);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.6;
  z-index: 1;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.2) 100%);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 600px;
}

.hero h1 {
  color: var(--color-white);
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
  color: rgba(255, 255, 255, 0.9);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

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

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

/* Footer */
.footer {
  background-color: var(--color-secondary);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-col h4 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
  font-family: var(--font-family-sans);
  font-size: 1.125rem;
}

.footer-link {
  display: block;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-sm);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  font-size: 0.875rem;
}

/* Media Queries */
@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

@media (min-width: 992px) {
  .main-nav {
    display: block;
  }
  .mobile-menu-btn {
    display: none;
  }
}