/* MDC v2.1.8.1 — Mobile Framework & Navigation */

/* Core resilience */
html {
  max-width: 100%;
  overflow-x: clip;
  -webkit-text-size-adjust: 100%;
}
body {
  max-width: 100%;
  overflow-x: clip;
}
img, video, iframe, svg {
  max-width: 100%;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 8000;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(8,44,74,.08);
  transition: box-shadow .2s ease, background-color .2s ease;
}
.site-header.is-scrolled {
  box-shadow: 0 10px 28px rgba(8,44,74,.10);
}
.header-inner {
  min-height: 76px;
}
.brand {
  min-width: 0;
  flex: 0 1 auto;
}
.brand-logo-full {
  display: block;
  width: auto;
  max-width: min(310px, 48vw);
  max-height: 58px;
  object-fit: contain;
}

/* Desktop navigation refinement */
@media (min-width: 1025px) {
  .nav-toggle { display: none !important; }
  .primary-nav.nav-polished {
    display: flex !important;
    position: static !important;
    inset: auto !important;
    width: auto !important;
    height: auto !important;
    max-height: none !important;
    padding: 0 !important;
    overflow: visible !important;
    transform: none !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    background: transparent !important;
    box-shadow: none !important;
  }
}

/* Mobile navigation shell */
.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 7990;
  background: rgba(3,20,34,.58);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .22s ease, visibility .22s ease;
}
.mobile-nav-backdrop.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

@media (max-width: 1024px) {
  body.mobile-nav-open {
    overflow: hidden !important;
    touch-action: none;
  }

  .header-inner {
    min-height: 68px;
    gap: .75rem;
  }

  .brand-logo-full {
    max-width: min(255px, 66vw);
    max-height: 50px;
  }

  .nav-toggle {
    display: inline-flex !important;
    flex: 0 0 48px;
    width: 48px;
    height: 48px;
    margin-left: auto;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    border: 1px solid rgba(8,44,74,.10);
    border-radius: 13px;
    background: #fff;
    box-shadow: 0 8px 20px rgba(8,44,74,.08);
    cursor: pointer;
    z-index: 8020;
  }
  .nav-toggle span {
    width: 24px;
    height: 2px;
    margin: 3px 0;
    border-radius: 999px;
    background: #0b3c5d;
    transform-origin: center;
    transition: transform .22s ease, opacity .18s ease;
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .primary-nav.nav-polished,
  .primary-nav {
    display: flex !important;
    position: fixed !important;
    inset: 0 0 0 auto !important;
    width: min(92vw, 410px) !important;
    height: 100dvh !important;
    max-height: 100dvh !important;
    padding:
      calc(env(safe-area-inset-top, 0px) + 5.5rem)
      1rem
      calc(env(safe-area-inset-bottom, 0px) + 1.25rem) !important;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: .4rem !important;
    overflow-y: auto !important;
    overscroll-behavior: contain;
    background: #fff !important;
    box-shadow: -18px 0 44px rgba(3,20,34,.20) !important;
    transform: translateX(104%) !important;
    opacity: 1 !important;
    visibility: hidden !important;
    pointer-events: none !important;
    transition: transform .26s ease, visibility .26s ease !important;
    z-index: 8010 !important;
  }

  .primary-nav.nav-polished.is-open,
  .primary-nav.is-open {
    transform: translateX(0) !important;
    visibility: visible !important;
    pointer-events: auto !important;
  }

  .primary-nav::before {
    content: "Explore MDC";
    display: block;
    padding: 0 .35rem .8rem;
    color: #0b3c5d;
    font-family: Poppins, sans-serif;
    font-size: 1.2rem;
    font-weight: 800;
    border-bottom: 1px solid rgba(8,44,74,.10);
    margin-bottom: .35rem;
  }

  .primary-nav > .nav-link,
  .primary-nav > a,
  .nav-dropdown-toggle,
  .nav-cta {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100% !important;
    min-height: 50px !important;
    padding: .8rem .9rem !important;
    border: 0 !important;
    border-radius: .8rem !important;
    color: #12364f !important;
    background: transparent !important;
    font-size: 1rem !important;
    font-weight: 750 !important;
    line-height: 1.25 !important;
    text-align: left !important;
    text-decoration: none !important;
  }

  .primary-nav > .nav-link:hover,
  .primary-nav > a:hover,
  .nav-dropdown-toggle:hover,
  .primary-nav [aria-current="page"],
  .primary-nav .active {
    background: #eef6f0 !important;
    color: #155b39 !important;
  }

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

  .nav-dropdown-toggle span {
    margin-left: auto;
    transition: transform .2s ease;
  }
  .nav-dropdown.is-open > .nav-dropdown-toggle span {
    transform: rotate(180deg);
  }

  .nav-dropdown-menu {
    display: grid !important;
    grid-template-rows: 0fr;
    position: static !important;
    inset: auto !important;
    width: 100% !important;
    min-width: 0 !important;
    margin: 0 !important;
    padding: 0 .35rem !important;
    overflow: hidden !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
    pointer-events: none !important;
    border: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
    transition: grid-template-rows .24s ease, padding .24s ease !important;
  }
  .nav-dropdown-menu > * {
    min-height: 0;
  }
  .nav-dropdown.is-open .nav-dropdown-menu {
    grid-template-rows: 1fr;
    padding-bottom: .4rem !important;
    pointer-events: auto !important;
  }
  .nav-dropdown-menu a {
    display: flex !important;
    min-height: 45px !important;
    align-items: center !important;
    padding: .7rem .8rem .7rem 1.2rem !important;
    border-left: 3px solid rgba(61,181,98,.32);
    border-radius: .5rem !important;
    color: #516371 !important;
    font-size: .94rem !important;
    font-weight: 650 !important;
  }
  .nav-dropdown-menu a:hover,
  .nav-dropdown-menu a.active,
  .nav-dropdown-menu a[aria-current="page"] {
    color: #155b39 !important;
    background: #f3f8f4 !important;
    border-left-color: #3db562;
  }

  .nav-cta {
    justify-content: center !important;
    margin-top: .45rem !important;
    color: #fff !important;
    background: #1f6b45 !important;
    box-shadow: 0 10px 24px rgba(31,107,69,.22) !important;
  }
  .nav-cta:hover {
    color: #fff !important;
    background: #175738 !important;
  }

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

/* Small-phone refinement */
@media (max-width: 480px) {
  .header-inner {
    min-height: 64px;
  }
  .brand-logo-full {
    max-width: min(220px, 65vw);
    max-height: 46px;
  }
  .nav-toggle {
    width: 44px;
    height: 44px;
    flex-basis: 44px;
  }
  .primary-nav.nav-polished,
  .primary-nav {
    width: 100vw !important;
    padding-left: .8rem !important;
    padding-right: .8rem !important;
  }
}

/* Landscape phones / short viewports */
@media (max-width: 1024px) and (max-height: 560px) {
  .primary-nav.nav-polished,
  .primary-nav {
    padding-top: calc(env(safe-area-inset-top, 0px) + 4.4rem) !important;
  }
  .primary-nav::before {
    font-size: 1rem;
    padding-bottom: .45rem;
  }
  .primary-nav > .nav-link,
  .primary-nav > a,
  .nav-dropdown-toggle,
  .nav-cta {
    min-height: 44px !important;
    padding-top: .65rem !important;
    padding-bottom: .65rem !important;
  }
}

/* Touch target and overflow framework */
@media (max-width: 1024px) {
  button, input, select, textarea, .btn, .button, a[class*="btn"] {
    min-height: 44px;
  }
  table {
    min-width: 620px;
  }
  .table-responsive,
  .data-table-wrap,
  main table {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .primary-nav,
  .mobile-nav-backdrop,
  .nav-toggle span,
  .nav-dropdown-menu {
    transition: none !important;
  }
}