/* Material Design 2025 inspired minimalism */
/* CSS Variables */
:root {
  --primary-color: #1976d2;
  --secondary-color: #424242;
  --accent-color: #ff9800;
  --background-color: #fafafa;
  --surface-color: #ffffff;
  --error-color: #f44336;
  --text-primary: #212121;
  --text-secondary: #757575;
  --text-on-primary: #ffffff;
  --border-radius: 8px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-family: 'Roboto', sans-serif;
  --font-size-base: 16px;
  --line-height: 1.6;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
}

/* Reset and base styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: var(--font-size-base);
  line-height: var(--line-height);
}

body {
  font-family: var(--font-family);
  color: var(--text-primary);
  background-color: var(--background-color);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--primary-color);
  opacity: 0.8;
}

button {
  font-family: inherit;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 500;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

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

/* Header */
.site-header {
  background-color: var(--surface-color);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
}

.logo img {
  height: 40px;
  width: auto;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav-menu a {
  color: var(--text-primary);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a[aria-current="page"] {
  background-color: var(--primary-color);
  color: var(--text-on-primary);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  background: none;
  padding: var(--spacing-xs);
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--text-primary);
  margin: 3px 0;
  transition: var(--transition);
}

/* Main content */
main {
  min-height: calc(100vh - 200px);
}

/* Hero section */
.hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, #1565c0 100%);
  color: var(--text-on-primary);
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-button {
  display: inline-block;
  background-color: var(--accent-color);
  color: var(--text-primary);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: var(--transition);
}

.cta-button:hover {
  background-color: #f57c00;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

/* Sections */
.section {
  padding: var(--spacing-xl) 0;
}

.section h2 {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

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

.card {
  background-color: var(--surface-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.card-image {
  height: 200px;
  overflow: hidden;
}

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

.card:hover .card-image img {
  transform: scale(1.05);
}

.card-content {
  padding: var(--spacing-lg);
}

.card h3 {
  margin-bottom: var(--spacing-sm);
}

.card p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

/* Footer */
.site-footer {
  background-color: var(--secondary-color);
  color: #ffffff;
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-section h3,
.footer-section h4 {
  color: #ffffff;
  margin-bottom: var(--spacing-md);
}

.footer-section p {
  color: #bdbdbd;
  margin-bottom: var(--spacing-md);
}

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

.footer-section ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-section ul a {
  color: #bdbdbd;
  transition: var(--transition);
}

.footer-section ul a:hover {
  color: #ffffff;
}

.social-links {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.social-links a {
  color: #bdbdbd;
  transition: var(--transition);
}

.social-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid #616161;
  padding-top: var(--spacing-md);
  text-align: center;
}

.footer-bottom p {
  color: #bdbdbd;
  font-size: 0.875rem;
}

/* Responsive design */
@media (max-width: 768px) {
  .navbar {
    flex-wrap: wrap;
  }

  .nav-menu {
    display: none;
    flex-direction: column;
    width: 100%;
    margin-top: var(--spacing-md);
    gap: var(--spacing-sm);
  }

  .nav-menu.show {
    display: flex;
  }

  .menu-toggle {
    display: flex;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1.125rem;
  }

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

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

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-sm);
  }

  .hero {
    padding: var(--spacing-lg) 0;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .section {
    padding: var(--spacing-lg) 0;
  }
}

/* Accessibility */
.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;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}