/* ==========================================================================
   EQUIDEM DESIGN SYSTEM - LAYOUT (layout.css)
   Page shell, civic top-bar, containers, navbar, footer and social links.

   The document is FULL BLEED: body is 100% wide and the horizontal rhythm is
   enforced by the containers, never by a `max-width` on <body>. Only class
   names and DOM hooks are preserved, so page scripts keep working.
   ========================================================================== */

/* ---- Shell ------------------------------------------------------------- */
body {
  margin: 0;
  padding: 0;
  width: 100%;
  background-color: var(--color-bg-body);
}

#main-content {
  display: block;
  width: 100%;
  padding: var(--space-4) clamp(var(--space-4), 3vw, var(--space-8)) var(--space-10);
}

/* Institutional containers: constrain the CONTENT, not the page. */
.custom-container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
}

/* Safety net: a grid block dropped straight into the main shell (without its
   own .custom-container / .container wrapper) is re-centred on the same
   1200px rhythm instead of bleeding to the viewport edges. */
#main-content > .row,
#main-content > .container-fluid {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
}

.container,
.container-sm,
.container-md,
.container-lg,
.container-xl,
.container-xxl {
  max-width: var(--container-max-width);
}

.page-container {
  margin-top: var(--space-4);
  margin-bottom: var(--space-8);
}

/* ---- Civic top-bar (ETS accreditation strip) --------------------------- */
.civic-topbar {
  width: 100%;
  background-color: var(--color-primary-light);
  border-bottom: 1px solid var(--color-border-subtle);
  color: var(--color-text-subheading);
  font-family: var(--font-subheader);
  font-size: var(--font-size-xs);
  line-height: 1.5;
}

.civic-topbar__inner {
  max-width: var(--navbar-max-width);
  margin-left: auto;
  margin-right: auto;
  padding: var(--space-2) clamp(var(--space-4), 3vw, var(--space-6));
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2) var(--space-4);
}

.civic-topbar__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-primary);
}

.civic-topbar__label strong {
  font-weight: var(--font-weight-bold);
}

.civic-topbar__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin: 0;
  color: var(--color-text-muted);
}

.civic-topbar__meta a {
  color: var(--color-text-subheading);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.civic-topbar__meta a:hover,
.civic-topbar__meta a:focus {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ---- Section surface (replaces scattered "rounded-3 shadow p-4") ------- */
.c-section {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: none;
  padding: var(--space-6);
}

.c-section--tight {
  padding: var(--space-4);
}

.c-section--flush {
  padding: 0;
  overflow: hidden;
}

/* Warm "paper" surface used for data registers and archive notes. */
.c-section--paper {
  background-color: var(--color-civic-sand);
  border-color: #e6e1d6;
}

.section-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-4);
}

/* ---- Navbar ------------------------------------------------------------ */
.site-nav {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  width: 100%;
  background-color: rgba(255, 255, 255, 0.97);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 0;
  border-bottom: 1px solid var(--color-border);
  border-radius: 0;
  box-shadow: none;
}

.site-nav__inner {
  width: 100%;
  max-width: var(--navbar-max-width);
  margin-left: auto;
  margin-right: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

@media (min-width: 992px) {
  .site-nav__inner {
    flex-wrap: nowrap;
  }
}

/* Brand lock-up: logo + institutional descriptor */
.site-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  margin-right: var(--space-4);
}

.site-brand__text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1.15;
  border-left: 1px solid var(--color-border);
  padding-left: var(--space-3);
}

.site-brand__tag {
  font-family: var(--font-subheader);
  font-size: 0.64rem;
  letter-spacing: var(--tracking-caps-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

@media (max-width: 575.98px) {
  .site-brand__text {
    display: none;
  }
}

.navbar-brand.logo {
  padding-top: 0;
  padding-bottom: 0;
}

.navbar-brand.logo img {
  height: 40px;
  width: auto;
  transition: transform var(--transition-fast);
}

.navbar-brand.logo:hover img {
  transform: scale(1.03);
}

.navbar-nav .nav-link {
  position: relative;
  padding: var(--space-2) var(--space-3);
  border-radius: 0;
  font-family: var(--font-subheader);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-text-heading);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

/* Precision underline on hover (::before keeps Bootstrap's caret ::after) */
.navbar-nav .nav-link::before {
  content: "";
  position: absolute;
  left: var(--space-3);
  right: var(--space-3);
  bottom: 2px;
  height: 2px;
  border-radius: 0;
  background-color: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition-fast);
}

.navbar-nav .nav-link:hover::before,
.navbar-nav .nav-link:focus-visible::before,
.navbar-nav .nav-link.active::before {
  transform: scaleX(1);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
  color: var(--color-primary);
}

.navbar-toggler {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.navbar-toggler:hover {
  border-color: var(--color-primary);
}

.navbar-toggler:focus {
  outline: 0;
  box-shadow: 0 0 0 3px rgba(11, 37, 69, 0.2);
}

.navbar-collapse.show,
.navbar-collapse.collapsing {
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border-subtle);
}

.dropdown-menu {
  z-index: var(--z-dropdown);
  min-width: 13rem;
  padding: var(--space-2);
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.dropdown-item {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-family: var(--font-subheader);
  font-size: var(--font-size-sm);
  color: var(--color-text-body);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.dropdown-item:hover,
.dropdown-item:focus {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.dropdown-divider {
  margin: var(--space-2) 0;
  border-color: var(--color-border-subtle);
}

/* ---- Social links ---- */
.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
  text-decoration: none;
}

.social-icon:hover {
  transform: translateY(-1px);
  opacity: 0.9;
}

.social-icon.youtube i { color: var(--color-social-youtube); }
.social-icon.instagram i { color: var(--color-social-instagram); }
.social-icon.x i { color: var(--color-social-x); }
.social-icon.tiktok i { color: var(--color-social-tiktok); }

/* ---- Institutional footer (4 reference columns) ------------------------ */
.site-footer {
  width: 100%;
  margin-top: var(--space-12);
  padding: 0;
  background-color: var(--color-primary-dark);
  border-top: 3px solid var(--color-civic-crimson);
  color: rgba(255, 255, 255, 0.72);
  font-family: var(--font-subheader);
}

.site-footer__inner {
  max-width: var(--container-wide);
  margin-left: auto;
  margin-right: auto;
  padding: var(--space-10) clamp(var(--space-4), 3vw, var(--space-8)) var(--space-6);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: var(--space-8);
  align-items: start;
}

.site-footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.site-footer__logo {
  height: 40px;
  width: auto;
  align-self: flex-start;
  /* The source logo is dark: keep it legible on the navy surface. */
  filter: brightness(0) invert(1);
}

.site-footer__name {
  font-family: var(--font-header);
  font-weight: var(--font-weight-display);
  font-size: 1.05rem;
  letter-spacing: 0.05em;
  color: var(--color-text-inverse);
  margin: 0;
}

.site-footer__mission {
  margin: 0;
  font-size: var(--font-size-sm);
  line-height: var(--line-height-base);
  color: rgba(255, 255, 255, 0.68);
}

.site-footer__heading {
  margin: 0 0 var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  font-family: var(--font-subheader);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-caps-wide);
  text-transform: uppercase;
  color: var(--color-text-inverse);
}

.site-footer__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
}

.site-footer__address {
  font-style: normal;
  font-size: var(--font-size-sm);
  line-height: var(--line-height-base);
  color: rgba(255, 255, 255, 0.72);
}

.site-footer .social-icon i {
  font-size: var(--font-size-xl);
}

/* The X mark is pure black: invert it so it stays legible on navy. */
.site-footer .social-icon.x i {
  color: var(--color-text-inverse);
}

.c-footer-link {
  font-family: var(--font-subheader);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.c-footer-link:hover,
.c-footer-link:focus {
  color: var(--color-text-inverse);
  text-decoration: underline;
}

.footer-legal {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
}

.site-footer__ets {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  align-self: flex-start;
  padding: var(--space-1) var(--space-3);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-left: 3px solid #4f9d76;
  border-radius: var(--radius-xs);
  font-size: var(--font-size-xs);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.86);
}

.site-footer__divider {
  margin: var(--space-8) 0 var(--space-4);
  border-color: rgba(255, 255, 255, 0.14);
  opacity: 1;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.6);
}

.site-footer__bottom p {
  margin: 0;
}

.site-footer__bottom a {
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
}

.site-footer__bottom a:hover,
.site-footer__bottom a:focus {
  color: var(--color-text-inverse);
  text-decoration: underline;
}

.site-footer__legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

@media (max-width: 991.98px) {
  .site-footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-6);
  }
}

@media (max-width: 575.98px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
  }

  #main-content {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
}