/* Layout Styles - Grid, Flexbox, Responsive Containers */

/* Container System */
.section-container,
.nav-container,
.hero-container,
.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

@media (min-width: 768px) {
  .section-container,
  .nav-container,
  .hero-container,
  .footer-container {
    padding: 0 var(--spacing-2xl);
  }
}

@media (min-width: 1024px) {
  .section-container,
  .nav-container,
  .hero-container,
  .footer-container {
    padding: 0 var(--spacing-3xl);
  }
}

/* Section Spacing */
section {
  padding: var(--section-padding-mobile) 0;
}

@media (min-width: 768px) {
  section {
    padding: var(--section-padding-desktop) 0;
  }
}

/* Section Headings */
.section-heading {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
  position: relative;
}

.section-heading::after {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  background-color: var(--color-secondary);
  margin: var(--spacing-md) auto 0;
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.grid-3 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Flexbox Utilities */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.flex-center {
  justify-content: center;
  align-items: center;
}

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

.flex-wrap {
  flex-wrap: wrap;
}

/* Spacing Utilities */
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

/* Text Alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Responsive Visibility */
.mobile-only {
  display: block;
}

.desktop-only {
  display: none;
}

@media (min-width: 768px) {
  .mobile-only {
    display: none;
  }
  
  .desktop-only {
    display: block;
  }
}