/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: 'Prompt', sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--background);
}
a {
  color: inherit;
}
img {
  max-width: 100%;
  height: auto;
}
/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}
/* Header */
.hero-content,
.site-header {
  background-color: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 6px var(--shadow-color)
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-md) 0;
}
.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo img {
  height: 50px;
}
.main-nav {
  display: flex;
  gap: var(--spacing-md);
}
/* Navigation Buttons */
.nav-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition-fast);
}
.nav-btn:hover {
  background: rgba(0, 0, 0, 0.05);
}
.nav-btn.primary {
  background: var(--primary-color);
  color: var(--white);
}
.nav-btn.primary:hover {
  background: var(--primary-dark);
}
/* Hero Section */
.hero {
  height: 100vh;
  background: url('../assets/images/hero-bg.webp') center/cover;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-xl);
}
.hero-content {
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  max-width: 800px;
}
.hero-title {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  color: var(--primary-dark);
}
.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-lg);
  color: var(--text-secondary);
}
.hero-features {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}
.feature {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}
.feature i {
  font-size: 2rem;
  color: var(--primary-color);
}
/* Products Section */
.products-section {
  padding: var(--spacing-xl) 0;
}
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}
.search-bar {
  position: relative;
  width: 300px;
}
.search-bar i {
  position: absolute;
  left: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
}
.search-bar input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) var(--spacing-xl);
  border: 1px solid var(--text-secondary);
  border-radius: var(--radius-lg);
  outline: none;
  transition: var(--transition-fast);
}
.search-bar input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(255, 152, 0, 0.2);
}
/* Product Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}
/* Features Section */
.features-section {
  padding: var(--spacing-xl) 0;
  margin: var(--spacing-xl) 0;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  text-align: center;
}
/* Features Section (ต่อ) */
.feature-card {
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  transition: var(--transition-normal);
}
.feature-card i {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}
.feature-card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}
.feature-card p {
  color: var(--text-secondary);
}
/* Footer */
.site-footer {
  background: var(--text-primary);
  color: var(--white);
  padding: var(--spacing-xl) 0;
  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-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}
.footer-logo {
  height: 40px;
  filter: brightness(0) invert(1);
  margin-right: auto;
}
.social-links {
  display: flex;
  gap: var(--spacing-md);
}
.social-link {
  color: var(--white);
  font-size: 1.5rem;
  transition: var(--transition-fast);
}
.social-link:hover {
  color: var(--primary-color);
}
.footer-contact h3 {
  margin-bottom: var(--spacing-md);
}
.footer-contact p {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}
.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
/* Responsive Design */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }
  .hero-subtitle {
    font-size: 1.25rem;
  }
  .hero-features {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  .section-header {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
  .search-bar {
    width: 100%;
  }
  .nav-btn span {
    display: none;
  }
}
/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.fade-in {
  animation: fadeIn 0.5s ease forwards;
}
/* Loading States */
.loading {
  position: relative;
  pointer-events: none;
}
.loading::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
}
/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}
/* Update existing components */
body {
  background: var(--background);
  color: var(--text-primary);
}
.product-description {
  color: var(--text-secondary);
}
.category-filter {
  background: var(--surface);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}
.category-filter.active {
  background: var(--primary-color);
  color: white;
}
.search-bar input {
  background: var(--surface);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}
.search-bar input::placeholder {
  color: var(--text-secondary);
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border-color);
}
/* Add dark mode specific styles */
@media (prefers-color-scheme: dark) {
  /* Images */
  .logo img {
    filter: brightness(0) invert(1);
  }
  /* Input focus */
  .search-bar input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(255, 152, 0, 0.2);
  }
  /* Buttons */
  .add-to-cart-btn:disabled {
    background: var(--surface-variant);
    color: var(--text-secondary);
  }
  /* Loading overlay */
  .loading::after {
    background: rgba(0, 0, 0, 0.8);
  }
  /* Notifications in dark mode */
  .notification {
    background: var(--surface);
    border: 1px solid var(--border-color);
  }
}
/* Add smooth transition for theme changes */
body * {
  transition: background-color 0.3s ease,
    color 0.3s ease,
    border-color 0.3s ease,
    box-shadow 0.3s ease;
}