/**
 * Mobile & tablet only (max-width: 1024px).
 * Desktop (min-width: 1025px) is unchanged: menu button and backdrop hidden.
 */

@media (min-width: 1025px) {
  nav.site-nav .nav-menu-btn {
    display: none !important;
  }
  .nav-drawer-backdrop {
    display: none !important;
    pointer-events: none !important;
  }
}

@media (max-width: 1024px) {
  nav.site-nav.site-nav-open {
    z-index: 220;
  }

  body.site-nav-open {
    overflow: hidden;
    touch-action: none;
  }

  nav.site-nav {
    flex-wrap: nowrap;
    align-items: center;
    gap: 8px;
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
    justify-content: flex-start;
  }

  nav.site-nav .nav-logo {
    flex-shrink: 0;
    margin-right: auto;
  }

  nav.site-nav .nav-logo img {
    height: 32px;
    max-width: min(150px, 44vw);
    width: auto;
    object-fit: contain;
  }

  /* Always show Nexperts AI + Enquire in the header */
  nav.site-nav .nav-right {
    display: flex !important;
    flex-shrink: 0;
    align-items: center;
    gap: 6px;
  }

  nav.site-nav .nav-ai {
    padding: 7px 10px;
    font-size: 0.68rem;
    gap: 4px;
    white-space: nowrap;
  }

  nav.site-nav .nav-ai .ldot {
    display: none;
  }

  nav.site-nav .nav-enroll {
    padding: 8px 11px;
    font-size: 0.7rem;
    white-space: nowrap;
  }

  /* Hamburger */
  nav.site-nav .nav-menu-btn {
    display: flex !important;
    flex-shrink: 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    margin-left: 2px;
    padding: 0;
    border: 1px solid rgba(191, 213, 242, 0.95);
    background: #fff;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.07);
    -webkit-tap-highlight-color: transparent;
  }

  nav.site-nav .nav-menu-btn:focus-visible {
    outline: 2px solid var(--blue, #1d4ed8);
    outline-offset: 2px;
  }

  nav.site-nav .nav-menu-bar {
    display: block;
    width: 18px;
    height: 2px;
    background: #2a3f5f;
    border-radius: 2px;
    transition: transform 0.25s ease, opacity 0.25s ease;
  }

  nav.site-nav.site-nav-open .nav-menu-btn .nav-menu-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  nav.site-nav.site-nav-open .nav-menu-btn .nav-menu-bar:nth-child(2) {
    opacity: 0;
  }

  nav.site-nav.site-nav-open .nav-menu-btn .nav-menu-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  nav.site-nav .nav-links .nav-highlight {
    display: none !important;
  }

  /* Dropdown panel */
  nav.site-nav .nav-links {
    position: fixed;
    top: 62px;
    right: max(12px, env(safe-area-inset-right));
    left: auto;
    width: min(360px, calc(100vw - 24px));
    max-width: calc(100vw - 24px);
    flex: none !important;
    min-width: 0 !important;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px 0;
    margin: 0;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(147, 197, 253, 0.5);
    border-radius: 16px;
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.2);
    z-index: 230;
    max-height: min(75vh, 520px);
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    white-space: normal;
    backdrop-filter: blur(12px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px) scale(0.98);
    transform-origin: top right;
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s ease;
    pointer-events: none;
  }

  nav.site-nav.site-nav-open .nav-links {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
    pointer-events: auto;
  }

  nav.site-nav .nav-links li {
    width: 100%;
    border-bottom: 1px solid rgba(215, 230, 251, 0.9);
  }

  nav.site-nav .nav-links li:last-child {
    border-bottom: none;
  }

  nav.site-nav .nav-links a {
    display: block;
    padding: 14px 18px;
    border-radius: 0;
    font-size: 0.9rem;
    font-weight: 600;
  }

  nav.site-nav .nav-links a::after {
    display: none !important;
  }

  nav.site-nav .nav-links a:hover {
    background: rgba(239, 246, 255, 0.95);
    color: var(--blue, #1d4ed8);
  }

  .nav-drawer-backdrop {
    display: block !important;
    position: fixed;
    inset: 0;
    top: 62px;
    z-index: 215;
    background: rgba(15, 23, 42, 0.38);
    backdrop-filter: blur(2px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.22s ease, visibility 0.22s ease;
    pointer-events: none;
  }

  nav.site-nav.site-nav-open + .nav-drawer-backdrop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  /* ── Course pages: stop horizontal scroll (structure unchanged) ── */
  .page,
  .main {
    overflow-x: hidden;
    max-width: 100%;
  }

  .course-hero {
    overflow-x: hidden;
  }

  .course-hero::after {
    display: none;
  }

  .tabs-bar {
    max-width: 100%;
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }

  .content-sec,
  .pass-band {
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }

  .quick-wins {
    max-width: 100%;
  }

  .share-strip {
    flex-direction: column;
  }

  .share-btn {
    min-width: 0;
    width: 100%;
  }

  .course-hero-layout {
    min-width: 0;
  }

  .hero-meta {
    max-width: 100%;
  }
}

/* Extra-tight viewports only (phones); does not apply at desktop widths */
@media (max-width: 380px) {
  nav.site-nav .nav-ai {
    font-size: 0.62rem;
    padding: 6px 8px;
  }

  nav.site-nav .nav-enroll {
    font-size: 0.64rem;
    padding: 7px 9px;
  }

  nav.site-nav .nav-menu-btn {
    width: 40px;
    height: 40px;
  }
}