/* ============================================
   LAYOUT & SPACING
   ============================================ */

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding-inline);
}

/* Sections */
.section {
  padding: var(--space-6xl) 0;
}

.section-sm {
  padding: var(--space-4xl) 0;
}

.section-lg {
  padding: var(--space-5xl) 0;
}

/* Section backgrounds */
.section-alt {
  background: var(--bg-secondary);
}

.section-dark {
  background: var(--color-black);
  color: var(--color-white);
}

.section-dark p,
.section-dark li {
  color: var(--color-gray-300);
}

/* Grid layouts */
.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Flex layouts */
.flex {
  display: flex;
  gap: var(--space-lg);
}

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

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

.flex-column {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

/* Margin utilities */
.mt-xs { margin-top: var(--space-xs); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mt-3xl { margin-top: var(--space-3xl); }
.mt-4xl { margin-top: var(--space-4xl); }

.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }
.mb-3xl { margin-bottom: var(--space-3xl); }
.mb-4xl { margin-bottom: var(--space-4xl); }

.mx-auto { margin-left: auto; margin-right: auto; }

/* Padding utilities */
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }
.p-2xl { padding: var(--space-2xl); }
.p-3xl { padding: var(--space-3xl); }

.px-lg { padding-left: var(--space-lg); padding-right: var(--space-lg); }
.px-xl { padding-left: var(--space-xl); padding-right: var(--space-xl); }

.py-lg { padding-top: var(--space-lg); padding-bottom: var(--space-lg); }
.py-xl { padding-top: var(--space-xl); padding-bottom: var(--space-xl); }

/* Gap utilities */
.gap-sm { gap: var(--space-sm) !important; }
.gap-md { gap: var(--space-md) !important; }
.gap-lg { gap: var(--space-lg) !important; }
.gap-xl { gap: var(--space-xl) !important; }
.gap-2xl { gap: var(--space-2xl) !important; }

/* Width utilities */
.w-full { width: 100%; }
.w-half { width: 50%; }
.w-third { width: 33.333%; }
.w-two-thirds { width: 66.666%; }
.w-max { max-width: 100%; }

/* Max width utilities */
.max-w-sm { max-width: 400px; }
.max-w-md { max-width: 600px; }
.max-w-lg { max-width: 900px; }
.max-w-xl { max-width: 1200px; }

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

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

/* Responsive adjustments */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-lg);
  }

  .section {
    padding: var(--space-4xl) 0;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .flex {
    flex-direction: column;
  }

  .flex-between {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-grid {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: var(--space-2xl) !important;
  }

  .footer-col {
    flex: 0 1 calc(50% - var(--space-lg)) !important;
  }

  h1 {
    font-size: var(--font-size-3xl);
  }

  h2 {
    font-size: var(--font-size-2xl);
  }
}

/* MOBILE HAMBURGER MENU */
.mobile-menu-toggle {
  display: none !important;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 24px;
  cursor: pointer;
  padding: var(--space-md);
  z-index: 1001;
}

.mobile-menu-toggle.active {
  color: var(--color-accent);
}

@media (max-width: 768px) {
  .nav-container {
    flex-wrap: wrap !important;
    gap: 0 !important;
  }

  .nav-links {
    display: none !important;
    position: fixed !important;
    top: 60px !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    flex-direction: column !important;
    background: var(--bg-primary) !important;
    border-bottom: 1px solid var(--border-default) !important;
    gap: 0 !important;
    z-index: 1000 !important;
    max-height: calc(100vh - 60px) !important;
    overflow-y: auto !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .nav-links a {
    padding: var(--space-lg) var(--space-xl) !important;
    border-bottom: 1px solid var(--border-default) !important;
    display: block !important;
    width: 100% !important;
  }

  .mobile-menu-toggle {
    display: block !important;
    position: absolute !important;
    right: 0 !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
  }

  .nav.mobile-menu-open .nav-links {
    display: flex !important;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
    width: 100% !important;
    max-width: 100% !important;
  }

  body {
    overflow-x: hidden !important;
    width: 100% !important;
  }

  .section {
    padding: var(--space-3xl) 0;
  }

  .footer-grid {
    display: flex !important;
    flex-direction: column !important;
    gap: var(--space-2xl) !important;
  }

  .footer-col {
    flex: 1 1 100% !important;
  }

  .nav {
    flex-wrap: wrap;
    padding: var(--space-md) 0;
  }

  .nav-container {
    width: 100% !important;
  }

  .nav-actions {
    width: 100%;
    margin-top: var(--space-md);
  }

  .nav-actions .btn {
    width: 100%;
  }

  h1 {
    font-size: var(--font-size-2xl);
  }

  h2 {
    font-size: var(--font-size-xl);
  }

  /* Hide elements on mobile if needed */
  .hide-mobile {
    display: none;
  }
}

/* FOOTER STYLES */
.footer {
  background: var(--bg-secondary);
  border-top: var(--border-width) solid var(--border-default);
  padding: var(--space-4xl) 0 var(--space-2xl);
  color: var(--text-secondary);
}

.footer-grid {
  display: flex !important;
  flex-wrap: wrap !important;
  gap: var(--space-3xl) !important;
  margin-bottom: var(--space-3xl) !important;
  align-items: flex-start !important;
  width: 100% !important;
}

.footer-col {
  flex: 1 1 auto !important;
  min-width: 150px !important;
  display: block !important;
}

.footer-col h4 {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-lg);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-col .list-clean li {
  margin-bottom: var(--space-md);
}

.footer-col a {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  transition: color var(--transition-base);
}

.footer-col a:hover {
  color: var(--color-accent);
}

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

.footer-bottom p {
  margin-bottom: var(--space-md);
  color: var(--text-muted);
}

/* Visibility utilities */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Display utilities */
.block { display: block; }
.inline { display: inline; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.grid { display: grid; }
.hidden { display: none; }

/* Overflow utilities */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-x-auto { overflow-x: auto; }

/* Border utilities */
.border { border: var(--border-width) solid var(--border-default); }
.border-top { border-top: var(--border-width) solid var(--border-default); }
.border-bottom { border-bottom: var(--border-width) solid var(--border-default); }
.border-rounded { border-radius: var(--border-radius-md); }
.border-rounded-lg { border-radius: var(--border-radius-lg); }

/* Shadow utilities */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-hover {
  transition: box-shadow var(--transition-base);
}
.shadow-hover:hover {
  box-shadow: var(--shadow-lg);
}

/* Aspect ratio containers */
.aspect-video {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: var(--border-radius-lg);
}

.aspect-video > img,
.aspect-video > iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.aspect-square {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: var(--border-radius-lg);
}

.aspect-square > img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}