/**
 * RESPONSIVE DESIGN & MOBILE DRAWER
 */

@media (max-width: 1100px) {
  .hero-title {
    font-size: 2.5rem;
  }
  .quick-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  .enterprise-options-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .topbar-info span:not(:first-child),
  .topbar-portals {
    display: none;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .schools-grid {
    grid-template-columns: 1fr;
  }
  
  .site-header {
    z-index: 10000;
  }
  
  .site-header.mobile-nav-active {
    z-index: 10005 !important;
  }

  .mobile-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: 1px solid var(--border-color);
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    font-size: 1.25rem;
    color: var(--color-primary);
    cursor: pointer;
  }
  
  .main-nav {
    position: fixed;
    top: 0;
    right: -360px;
    width: 320px;
    max-width: 86vw;
    height: 100vh;
    height: 100dvh;
    background: #ffffff !important;
    box-shadow: -10px 0 35px rgba(10, 10, 10, 0.3);
    flex-direction: column;
    align-items: stretch;
    padding: max(70px, env(safe-area-inset-top) + 20px) 20px max(30px, env(safe-area-inset-bottom) + 20px);
    transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 10000;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    pointer-events: none;
  }
  
  .main-nav.mobile-open {
    right: 0;
    pointer-events: auto;
  }
  
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 0;
  }
  
  .nav-item {
    width: 100%;
    border-bottom: 1px solid #f1f5f9;
  }
  
  .nav-link {
    width: 100%;
    padding: 13px 6px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-dark);
    text-decoration: none;
  }
  
  .nav-link:hover, .nav-link.active {
    color: var(--color-accent);
  }

  .nav-link i.fa-chevron-down {
    font-size: 0.75rem;
    color: var(--color-accent);
    transition: transform 0.25s ease;
  }

  .nav-item.open-sub > .nav-link i.fa-chevron-down {
    transform: rotate(180deg);
  }
  
  .dropdown-menu {
    position: static !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
    box-shadow: none !important;
    border: none !important;
    border-left: 3px solid var(--color-accent) !important;
    border-radius: 0 8px 8px 0 !important;
    background: #f8fafc !important;
    padding: 10px 10px 4px !important;
    margin: 0 0 10px 6px !important;
    display: none;
    width: calc(100% - 6px) !important;
    min-width: unset !important;
    list-style: none !important;
  }
  
  .dropdown-mega {
    min-width: unset !important;
    padding: 10px 10px 4px !important;
  }

  .dropdown-mega-grid {
    grid-template-columns: 1fr !important;
    gap: 8px !important;
    padding: 0 !important;
  }

  .dropdown-header {
    font-size: 0.75rem !important;
    font-weight: 800 !important;
    color: var(--color-accent) !important;
    padding: 4px 6px !important;
    margin-bottom: 4px !important;
    border-bottom: 1px dashed #cbd5e1 !important;
  }

  .dropdown-item {
    display: block !important;
    padding: 10px 12px !important;
    border-radius: 6px !important;
    background: #ffffff !important;
    margin-bottom: 8px !important;
    border: 1px solid #e2e8f0 !important;
    text-decoration: none !important;
    transition: background 0.2s ease, border-color 0.2s ease !important;
  }

  .dropdown-item:hover, .dropdown-item:active {
    background: #fdf4fd !important;
    border-color: var(--color-accent) !important;
  }

  .dropdown-item strong {
    display: block !important;
    font-size: 0.85rem !important;
    font-weight: 700 !important;
    color: var(--color-dark) !important;
    line-height: 1.3 !important;
  }

  .dropdown-item span {
    display: block !important;
    font-size: 0.72rem !important;
    color: #64748b !important;
    line-height: 1.4 !important;
    margin-top: 2px !important;
  }

  .nav-item.open-sub > .dropdown-menu {
    display: block !important;
  }
  
  .mobile-close-btn {
    display: flex !important;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 16px;
    right: 16px;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: #f1f5f9;
    border: 1px solid var(--border-color);
    font-size: 1.1rem;
    color: var(--color-dark);
    cursor: pointer;
    transition: all 0.2s ease;
    z-index: 10001;
  }

  .mobile-close-btn:hover, .mobile-close-btn:active {
    background: var(--color-accent);
    color: #ffffff;
  }
  
  .mobile-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 10, 0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    pointer-events: none;
  }
  
  .mobile-overlay.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 2rem;
  }
  .quick-cards-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .enterprise-options-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
  .header-sublogos {
    display: none;
  }
  .header-actions .btn-candidater {
    display: none;
  }
  .hero-partner-container {
    gap: 16px !important;
    padding: 0 10px;
    overflow-x: auto;
  }
  .hero-partner-container img {
    height: 42px !important;
  }
  .partner-divider {
    height: 30px !important;
  }
}