/* Layout Styles */
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Header */
.header {
  background-color: var(--color-background);
  border-bottom: var(--border-width) solid var(--color-border);
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
  background-color: rgba(255, 255, 255, 0.95);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--color-text);
}

.logo-small {
  width: 32px;
  height: 32px;
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
}

.nav {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-link {
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  color: var(--color-text);
}

.nav-link:hover {
  background-color: #f0f0f0;
  color: var(--color-text);
}

/* Footer */
.footer {
  background-color: var(--color-background-alt);
  border-top: var(--border-width) solid var(--color-border);
  padding: var(--spacing-md) 0;
  margin-top: var(--spacing-xl);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.footer-links {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.footer-copyright {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* Hero Section */
.hero {
  text-align: center;
  padding: var(--spacing-3xl) 0;
}

.hero-logo {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
}

.subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xl);
}

/* Grid Layouts */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

/* Sections */
section {
  margin-bottom: var(--spacing-3xl);
}

section h2 {
  margin-bottom: var(--spacing-lg);
}

/* Responsive */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .nav {
    flex-direction: column;
    width: 100%;
    gap: var(--spacing-sm);
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
  }
}