/**
 * SBS Layout — containers, header, footer, page scaffolding.
 * Depends on tokens.css.
 */

/* ------------------------------------------------------------------
 * Containers
 * ---------------------------------------------------------------- */
.sbs-container {
  width: 100%;
  max-width: var(--sbs-container);
  margin-inline: auto;
  padding-inline: var(--sbs-gutter);
}

.sbs-container--narrow {
  max-width: var(--sbs-container-narrow);
}

.sbs-container--wide {
  max-width: var(--sbs-container-wide);
}

.sbs-section {
  padding-block: var(--sbs-section-y);
}

.sbs-section--muted {
  background: var(--sbs-muted);
}

.sbs-section--gold {
  background: var(--sbs-gold-subtle);
}

.sbs-section--inverse {
  background: var(--sbs-inverse);
  color: var(--sbs-inverse-foreground);
}

.sbs-section--inverse h1,
.sbs-section--inverse h2,
.sbs-section--inverse h3,
.sbs-section--inverse h4 {
  color: var(--sbs-inverse-foreground);
}

.sbs-site {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.sbs-main {
  flex: 1 0 auto;
}

/* ------------------------------------------------------------------
 * Site header
 * ---------------------------------------------------------------- */
.sbs-header {
  position: sticky;
  top: 0;
  z-index: var(--sbs-z-header);
  background: rgb(255 255 255 / 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--sbs-border);
  transition: box-shadow var(--sbs-transition), background var(--sbs-transition);
}

.sbs-header.is-scrolled {
  box-shadow: var(--sbs-shadow-md);
}

.sbs-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sbs-space-6);
  min-height: var(--sbs-header-h);
}

/* Branding ------------------------------------------------------- */
.sbs-branding {
  display: flex;
  align-items: center;
  gap: var(--sbs-space-3);
  flex-shrink: 0;
  text-decoration: none;
  color: inherit;
}

.sbs-branding__logo {
  height: 3rem;
  width: auto;
}

.sbs-branding__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.sbs-branding__name {
  font-family: var(--sbs-font-display);
  font-weight: var(--sbs-weight-display);
  font-size: var(--sbs-text-lg);
  letter-spacing: var(--sbs-tracking-tight);
  color: var(--sbs-foreground);
}

.sbs-branding__tagline {
  font-size: 0.6rem;
  letter-spacing: var(--sbs-tracking-widest);
  text-transform: lowercase;
  color: var(--sbs-gold);
  white-space: nowrap;
}

/* Hide the wordmark text on small screens — the logo carries it */
@media (max-width: 480px) {
  .sbs-branding__text {
    display: none;
  }
}

/* ------------------------------------------------------------------
 * Primary navigation (desktop)
 * ---------------------------------------------------------------- */
.sbs-nav {
  display: flex;
  align-items: center;
  gap: var(--sbs-space-6);
}

.sbs-nav__menu {
  display: flex;
  align-items: center;
  gap: var(--sbs-space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.sbs-nav__menu li {
  position: relative;
}

.sbs-nav__menu a {
  display: block;
  padding: var(--sbs-space-2) var(--sbs-space-3);
  font-size: var(--sbs-text-sm);
  font-weight: var(--sbs-weight-medium);
  letter-spacing: 0.01em;
  color: var(--sbs-foreground);
  text-decoration: none;
  border-radius: var(--sbs-radius-md);
  transition: color var(--sbs-transition), background var(--sbs-transition);
}

.sbs-nav__menu a:hover,
.sbs-nav__menu a:focus-visible {
  color: var(--sbs-gold-dark);
  background: var(--sbs-gold-subtle);
}

/* Current page gets a gold underline */
.sbs-nav__menu .current-menu-item > a,
.sbs-nav__menu .current_page_item > a,
.sbs-nav__menu .current-menu-ancestor > a {
  color: var(--sbs-gold-dark);
}

.sbs-nav__menu .current-menu-item > a::after,
.sbs-nav__menu .current_page_item > a::after {
  content: '';
  display: block;
  height: 2px;
  margin-top: 2px;
  background: var(--sbs-gold);
  border-radius: var(--sbs-radius-full);
}

/* Dropdown submenus -------------------------------------------- */
.sbs-nav__menu .sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 14rem;
  list-style: none;
  margin: 0;
  padding: var(--sbs-space-2);
  background: var(--sbs-background);
  border: 1px solid var(--sbs-border);
  border-radius: var(--sbs-radius);
  box-shadow: var(--sbs-shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--sbs-transition), transform var(--sbs-transition),
    visibility var(--sbs-transition);
  z-index: var(--sbs-z-menu);
}

.sbs-nav__menu li:hover > .sub-menu,
.sbs-nav__menu li:focus-within > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.sbs-nav__menu .sub-menu a {
  padding: var(--sbs-space-2) var(--sbs-space-3);
  font-weight: var(--sbs-weight-normal);
}

/* ------------------------------------------------------------------
 * Mobile navigation
 * ---------------------------------------------------------------- */
.sbs-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  background: none;
  border: 1px solid var(--sbs-border);
  border-radius: var(--sbs-radius-md);
  cursor: pointer;
  color: var(--sbs-foreground);
  transition: border-color var(--sbs-transition), color var(--sbs-transition);
}

.sbs-nav-toggle:hover {
  border-color: var(--sbs-gold);
  color: var(--sbs-gold-dark);
}

.sbs-nav-toggle__bars,
.sbs-nav-toggle__bars::before,
.sbs-nav-toggle__bars::after {
  display: block;
  width: 1.15rem;
  height: 2px;
  background: currentColor;
  border-radius: var(--sbs-radius-full);
  transition: transform var(--sbs-transition), opacity var(--sbs-transition);
}

.sbs-nav-toggle__bars {
  position: relative;
}

.sbs-nav-toggle__bars::before,
.sbs-nav-toggle__bars::after {
  content: '';
  position: absolute;
  left: 0;
}

.sbs-nav-toggle__bars::before {
  top: -6px;
}
.sbs-nav-toggle__bars::after {
  top: 6px;
}

.sbs-nav-toggle[aria-expanded='true'] .sbs-nav-toggle__bars {
  background: transparent;
}

.sbs-nav-toggle[aria-expanded='true'] .sbs-nav-toggle__bars::before {
  transform: translateY(6px) rotate(45deg);
}

.sbs-nav-toggle[aria-expanded='true'] .sbs-nav-toggle__bars::after {
  transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 1024px) {
  .sbs-nav-toggle {
    display: flex;
  }

  .sbs-nav {
    position: fixed;
    inset: var(--sbs-header-h) 0 0 0;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: var(--sbs-space-6) var(--sbs-gutter) var(--sbs-space-12);
    background: var(--sbs-background);
    border-top: 1px solid var(--sbs-border);
    overflow-y: auto;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform var(--sbs-transition-slow), visibility var(--sbs-transition-slow);
  }

  .sbs-nav.is-open {
    transform: translateX(0);
    visibility: visible;
  }

  .sbs-nav__menu {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .sbs-nav__menu > li {
    border-bottom: 1px solid var(--sbs-border);
  }

  .sbs-nav__menu a {
    padding: var(--sbs-space-4) 0;
    font-size: var(--sbs-text-lg);
    font-family: var(--sbs-font-display);
    border-radius: 0;
  }

  .sbs-nav__menu a:hover,
  .sbs-nav__menu a:focus-visible {
    background: none;
  }

  .sbs-nav__menu .current-menu-item > a::after,
  .sbs-nav__menu .current_page_item > a::after {
    display: none;
  }

  /* Submenus render inline on mobile rather than as dropdowns */
  .sbs-nav__menu .sub-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    min-width: 0;
    padding: 0 0 var(--sbs-space-3) var(--sbs-space-4);
    border: 0;
    box-shadow: none;
    background: none;
  }

  .sbs-nav__menu .sub-menu a {
    font-family: var(--sbs-font-body);
    font-size: var(--sbs-text-base);
    padding: var(--sbs-space-2) 0;
  }

  /* Stop the page scrolling behind the open menu */
  body.sbs-nav-open {
    overflow: hidden;
  }
}

/* ------------------------------------------------------------------
 * Page header (title band on interior pages)
 * ---------------------------------------------------------------- */
.sbs-page-header {
  padding-block: clamp(2.5rem, 1.5rem + 4vw, 4.5rem);
  background: var(--sbs-gold-subtle);
  border-bottom: 1px solid rgb(var(--sbs-gold-rgb) / 0.25);
  text-align: center;
}

.sbs-page-header__title {
  font-size: var(--sbs-text-4xl);
}

.sbs-page-header__subtitle {
  margin-top: var(--sbs-space-3);
  font-size: var(--sbs-text-lg);
  color: var(--sbs-muted-foreground);
  max-width: 46rem;
  margin-inline: auto;
}

/* ------------------------------------------------------------------
 * Content + sidebar layout
 * ---------------------------------------------------------------- */
.sbs-layout {
  display: grid;
  gap: var(--sbs-space-12);
  align-items: start;
}

@media (min-width: 900px) {
  .sbs-layout--sidebar {
    grid-template-columns: minmax(0, 1fr) 18rem;
  }
}

.sbs-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--sbs-space-8);
}

@media (min-width: 900px) {
  .sbs-sidebar {
    position: sticky;
    top: calc(var(--sbs-header-h) + var(--sbs-space-6));
  }
}

.sbs-widget__title {
  font-size: var(--sbs-text-base);
  text-transform: uppercase;
  letter-spacing: var(--sbs-tracking-wide);
  padding-bottom: var(--sbs-space-3);
  margin-bottom: var(--sbs-space-4);
  border-bottom: 2px solid var(--sbs-gold);
}

.sbs-sidebar ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--sbs-space-2);
}

/* ------------------------------------------------------------------
 * Site footer
 * ---------------------------------------------------------------- */
.sbs-footer {
  flex-shrink: 0;
  background: var(--sbs-inverse);
  color: var(--sbs-inverse-foreground);
  padding-block: var(--sbs-space-16) var(--sbs-space-8);
  margin-top: auto;
}

.sbs-footer a {
  color: var(--sbs-inverse-foreground);
  text-decoration: none;
  transition: color var(--sbs-transition);
}

.sbs-footer a:hover {
  color: var(--sbs-gold);
}

.sbs-footer__grid {
  display: grid;
  gap: var(--sbs-space-10);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .sbs-footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .sbs-footer__grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }
}

.sbs-footer__brand-logo {
  height: 4rem;
  width: auto;
  margin-bottom: var(--sbs-space-4);
}

.sbs-footer__tagline {
  font-size: 0.7rem;
  letter-spacing: var(--sbs-tracking-widest);
  text-transform: lowercase;
  color: var(--sbs-gold);
  margin-bottom: var(--sbs-space-4);
}

.sbs-footer__description {
  font-size: var(--sbs-text-sm);
  color: var(--sbs-inverse-muted);
  max-width: 28rem;
}

.sbs-footer__heading {
  font-family: var(--sbs-font-display);
  font-size: var(--sbs-text-sm);
  font-weight: var(--sbs-weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--sbs-tracking-wide);
  color: var(--sbs-gold);
  margin-bottom: var(--sbs-space-4);
}

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

.sbs-footer__social {
  display: flex;
  gap: var(--sbs-space-3);
  margin-top: var(--sbs-space-5);
}

.sbs-footer__social a {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid rgb(255 255 255 / 0.18);
  border-radius: var(--sbs-radius-full);
  transition: border-color var(--sbs-transition), background var(--sbs-transition),
    transform var(--sbs-transition);
}

.sbs-footer__social a:hover {
  border-color: var(--sbs-gold);
  background: rgb(var(--sbs-gold-rgb) / 0.12);
  transform: translateY(-2px);
}

.sbs-footer__social img {
  width: 1.1rem;
  height: 1.1rem;
  /* The source icons are dark; invert them onto the dark footer */
  filter: brightness(0) invert(1);
  opacity: 0.85;
}

.sbs-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sbs-space-4);
  margin-top: var(--sbs-space-12);
  padding-top: var(--sbs-space-6);
  border-top: 1px solid rgb(255 255 255 / 0.12);
  font-size: var(--sbs-text-sm);
  color: var(--sbs-inverse-muted);
}

.sbs-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sbs-space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}