/* ========================================
   KANZ — Layout
   Responsive: mobile-first, scales to desktop.
   Mobile (<640px): 2-col facets, single-col lists
   Tablet (640-1024px): 3-col facets, wider content
   Desktop (1024px+): 5-col facets, 2-col vault, wider content
   ======================================== */

/* ---- Page Shell ---- */
.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---- Sticky Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(28, 25, 23, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0;
  transition: box-shadow 0.3s;
}

.site-header.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.site-header-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 1.5rem;
}

.site-header h1 {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
  display: inline;
}

.site-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: var(--weight-semibold);
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.03em;
}

.site-title:hover {
  color: var(--aged-brass);
  text-decoration: none;
}

.site-tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--text-lighter);
  display: none;
}

@media (min-width: 640px) {
  .site-tagline {
    display: inline;
    margin-left: var(--space-md);
  }
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hijri-date {
  font-family: var(--font-body);
  font-size: var(--text-xxs);
  color: var(--text-lighter);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.4rem 0.75rem;
  font-size: 0.82rem;
  color: var(--text-light);
  cursor: pointer;
  transition: all 0.2s;
  background: none;
}

.nav-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* ---- Main Content ---- */
.main-content {
  flex: 1;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
  padding: var(--space-xl) 1.5rem var(--space-2xl);
}

@media (min-width: 1024px) {
  .main-content {
    max-width: 1000px;
    padding: var(--space-xl) 2rem var(--space-2xl);
  }
}

/* ---- Gems List ---- */
.gems-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

/* ---- Facets Grid — responsive columns ---- */
.facets-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

@media (min-width: 640px) {
  .facets-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .facets-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* ---- Gem List Compact — 2 columns on desktop ---- */
@media (min-width: 1024px) {
  .vault-gem-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--border);
    border-radius: var(--radius);
    overflow: hidden;
  }

  .vault-gem-list .gem-list-item {
    border-radius: 0;
  }
}

/* ---- Centerstage — wider on desktop ---- */
@media (min-width: 1024px) {
  .centerstage__inner {
    max-width: 650px;
  }
}

/* ---- Bottom Nav — wider on desktop ---- */
@media (min-width: 1024px) {
  .bottom-nav__inner {
    max-width: 1000px;
  }
}

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-xl) 1.5rem;
  padding-bottom: 90px; /* Above bottom nav */
  text-align: center;
}

.site-footer p {
  font-size: var(--text-sm);
  color: var(--text-lighter);
  line-height: 1.6;
}