/* ==========================================================================
   GearGlobes — Layout: header, nav, footer, breadcrumbs, page grid
   ========================================================================== */

/* Header ------------------------------------------------------------------ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}
.site-header__bar {
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: var(--space-5);
  padding-block: var(--space-3);
}
.logo { display: flex; align-items: center; gap: var(--space-2); font-size: 1.2rem; line-height: 1; }
.logo__mark { width: 32px; height: 32px; flex-shrink: 0; display: block; }
.logo__gear { color: var(--color-text); font-weight: 800; }
.logo__globes { color: var(--color-text); font-weight: 400; }

.main-nav { display: none; }
.main-nav ul { display: flex; align-items: center; justify-content: center; width: 100%; gap: var(--space-6); margin: 0; padding: 0; list-style: none; }
.main-nav ul li { position: relative; margin: 0; }
.main-nav a {
  display: flex; align-items: center; font-weight: 600; color: var(--color-text-muted); line-height: 1;
  padding: var(--space-2) 0; white-space: nowrap;
  box-shadow: 0 -2px 0 transparent;
  transition: color .2s ease, box-shadow .2s ease;
}
.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--color-primary);
  box-shadow: 0 -2px 0 var(--color-primary);
}

.has-dropdown { position: relative; }
.has-dropdown > button {
  background: none; border: none; cursor: pointer; font: inherit; font-weight: 600;
  color: var(--color-text-muted); line-height: 1; padding: var(--space-2) 0; display: flex; align-items: center; gap: var(--space-1);
  white-space: nowrap;
  box-shadow: 0 -2px 0 transparent;
  transition: color .2s ease, box-shadow .2s ease;
}
.has-dropdown > button:hover,
.has-dropdown > button.is-active,
.has-dropdown.is-open > button {
  color: var(--color-primary);
  box-shadow: 0 -2px 0 var(--color-primary);
}
.has-dropdown > button::after { content: "▾"; font-size: 0.7em; transition: transform .2s ease; }
.has-dropdown.is-open > button::after { transform: rotate(180deg); }
.main-nav .dropdown-menu {
  display: none; position: absolute; top: 100%; left: 0; min-width: 230px;
  list-style: none; margin: var(--space-2) 0 0; padding: 0;
  background: #0b0f19; border-top: 3px solid var(--color-primary);
  border-radius: 0 0 var(--radius-md) var(--radius-md); box-shadow: var(--shadow-md); z-index: 10; overflow: hidden;
}
.main-nav .dropdown-menu li { margin: 0; }
.main-nav .dropdown-menu li::before { content: none; }
.has-dropdown.is-open .dropdown-menu { display: block; }
.dropdown-menu a {
  display: block; padding: var(--space-2) var(--space-3); color: #e2e8f0;
  font-size: 0.9rem; border-bottom: 1px dashed rgba(255, 255, 255, .12); transition: color .2s ease, background .2s ease, padding-left .2s ease;
}
.dropdown-menu li:last-child a { border-bottom: none; }
.dropdown-menu a:hover { background: rgba(41, 82, 227, .15); color: var(--color-primary); padding-left: calc(var(--space-3) + 4px); }
.dropdown-menu a[aria-current="page"] { color: var(--color-primary); }

.header-actions { display: flex; align-items: center; gap: var(--space-2); }
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: var(--radius-sm); border: 1px solid var(--color-border);
  background: var(--color-surface); color: var(--color-text); text-decoration: none; cursor: pointer;
}
.icon-btn:hover { border-color: var(--color-primary); }

.nav-toggle { display: inline-flex; }
@media (min-width: 960px) {
  .main-nav { display: block; }
  .nav-toggle { display: none; }
}

.mobile-nav {
  display: none; border-top: 1px solid var(--color-border);
  padding: var(--space-4) 0;
}
.mobile-nav.is-open { display: block; }
.mobile-nav ul { list-style: none; margin: 0; padding-inline: var(--space-4); padding-block: 0; display: grid; gap: var(--space-1); }
.mobile-nav ul li { margin: 0; }
.mobile-nav a { display: block; padding: var(--space-2) 0; font-weight: 600; color: var(--color-text); }
.mobile-nav a[aria-current="page"] { color: var(--color-primary); }
@media (min-width: 960px) { .mobile-nav { display: none !important; } }

/* Breadcrumbs --------------------------------------------------------------- */
.breadcrumbs { padding-block: var(--space-3); font-size: 0.85rem; }
.breadcrumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: var(--space-1); color: var(--color-text-muted); }
.breadcrumbs li { display: flex; align-items: center; gap: var(--space-1); margin: 0; }
.breadcrumbs li:not(:last-child)::after { content: "/"; margin-left: var(--space-1); color: var(--color-border); }
.breadcrumbs a { color: var(--color-text-muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--color-primary); }
.breadcrumbs [aria-current="page"] { color: var(--color-text); font-weight: 600; }

/* Page sections -------------------------------------------------------------- */
main { display: block; }
.section { padding-block: var(--space-8); }
.section--tight { padding-block: var(--space-6); }
.section-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-4);
  margin-bottom: var(--space-5); padding-bottom: var(--space-3); border-bottom: 2px solid var(--color-text);
}
.section-head h2 { margin: 0; }
.more-link { font-weight: 700; white-space: nowrap; }

.hero { position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(to right, var(--color-bg) 0%, var(--color-bg) 36%, transparent 85%),
    url("/assets/img/ui/hero-bg.jpg") no-repeat right 65% / cover;
  opacity: 0.85; pointer-events: none; z-index: 0;
}
.hero > .container { position: relative; z-index: 1; }

.grid { display: grid; gap: var(--space-5); }
.grid--2 { grid-template-columns: repeat(1, 1fr); }
.grid--3 { grid-template-columns: repeat(1, 1fr); }
.grid--4 { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 640px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

.layout-with-sidebar { display: grid; gap: var(--space-8); }
@media (min-width: 960px) {
  .layout-with-sidebar { grid-template-columns: minmax(0, 1fr) 300px; align-items: start; }
}
.sidebar { display: grid; gap: var(--space-5); }
.sidebar__box {
  border: 1px solid var(--color-border); border-radius: var(--radius-md);
  padding: var(--space-5); background: var(--color-surface);
}

/* Carousel (progressive enhancement over a plain scrollable list) ------------ */
.carousel { position: relative; }
.carousel [data-carousel-track] {
  display: flex; gap: var(--space-5); overflow-x: auto; scroll-snap-type: x proximity;
  list-style: none; margin: 0; padding: 0 0 var(--space-2);
}
.carousel [data-carousel-track] > * { flex: 0 0 240px; scroll-snap-align: start; }
.carousel-controls { display: flex; gap: var(--space-2); justify-content: flex-end; margin-top: var(--space-2); }

/* Footer --------------------------------------------------------------------- */
.site-footer { border-top: 1px solid var(--color-border); background: var(--color-surface); margin-top: var(--space-10); }
.footer-grid {
  display: grid; gap: var(--space-6); padding-block: var(--space-8);
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 720px) { .footer-grid { grid-template-columns: repeat(4, 1fr); } }
.footer-col__title { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-muted); font-weight: 700; margin: 0 0 var(--space-3); }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-2); }
.footer-col a { color: var(--color-text); text-decoration: none; }
.footer-col a:hover { color: var(--color-primary); }
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-4);
  display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; justify-content: space-between;
  font-size: 0.85rem; color: var(--color-text-muted);
}
.footer-disclosure {
  font-size: 0.8rem; color: var(--color-text-muted); max-width: 70ch;
  padding-block: var(--space-4); border-top: 1px solid var(--color-border);
}