/* ==========================================================================
   BEREA BIBLE INSTITUTE & THEOLOGICAL SEMINARY
   Responsive Breakpoints & Mobile Optimization
   ========================================================================== */

/* Hamburger Button */
.mobile-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  color: var(--burgundy-900);
  background-color: var(--cream-bg);
  border: 1px solid var(--cream-border);
  cursor: pointer;
}

/* Mobile Drawer Overlay */
.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(27, 26, 25, 0.6);
  backdrop-filter: blur(4px);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.mobile-drawer-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 85%;
  max-width: 360px;
  background-color: #FFFFFF;
  z-index: 999;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  box-shadow: var(--shadow-xl);
  overflow-y: auto;
}

.mobile-drawer.active {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--cream-border);
  margin-bottom: 1.5rem;
}

.drawer-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--cream-alt);
  color: var(--charcoal-700);
}

.drawer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.drawer-link {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--charcoal-800);
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.drawer-link:hover,
.drawer-link.active {
  background-color: var(--burgundy-50);
  color: var(--burgundy-900);
}

.drawer-footer {
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--cream-border);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* ----------------------------------------------------
   RESPONSIVE BREAKPOINTS
   ---------------------------------------------------- */

/* Desktop / Large Screens (>= 1200px) */
@media (min-width: 1200px) {
  .courses-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Tablet & Smaller (< 1024px) */
@media (max-width: 1024px) {
  :root {
    --header-height: 76px;
  }

  .nav-menu {
    display: none;
  }

  .mobile-nav-toggle {
    display: flex;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }

  .catalogue-layout {
    grid-template-columns: 1fr !important;
  }

  .catalogue-sidebar {
    display: none;
  }

  .catalogue-sidebar.mobile-open {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: #FFFFFF;
    padding: 2rem;
    overflow-y: auto;
  }

  .checkout-layout {
    grid-template-columns: 1fr !important;
  }

  .order-summary-card {
    position: static;
    margin-top: 2rem;
  }

  .course-detail-layout {
    grid-template-columns: 1fr !important;
  }
}

/* Mobile & Small Screens (< 768px) */
@media (max-width: 768px) {
  .section {
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
  }

  .topbar {
    display: none;
  }

  .brand-title {
    font-size: 1.05rem;
  }

  .brand-crest {
    width: 40px;
    height: 40px;
    font-size: 1.15rem;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .footer-bottom-links {
    justify-content: center;
  }

  .checkout-stepper {
    padding: 1rem;
    gap: 0.5rem;
  }

  .step-label {
    display: none;
  }

  .step-divider {
    min-width: 12px;
    margin: 0 0.25rem;
  }

  .cart-table-wrap {
    overflow-x: auto;
  }

  .cart-actions {
    flex-direction: column;
    gap: 1rem;
  }

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

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

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