/* Page scaffolding: header, shells, grids, footer. Structure only. */

.site-header {
  position: sticky; top: 0; z-index: 30;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-row-logo,
.header-row-search {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-3) var(--space-4);
  display: flex; align-items: center; gap: var(--space-3);
}
.header-row-logo { justify-content: space-between; }
.header-row-search { padding-top: 0; position: relative; }

.site-header-simple {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.site-header-simple > .brand,
.site-header-simple > .header-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-4);
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
}

.brand { display: flex; align-items: center; gap: var(--space-3); text-decoration: none; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-mark { display: inline-flex; width: 34px; height: 34px; color: var(--primary); }
.brand-mark svg { width: 100%; height: 100%; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-family: var(--font-display); font-weight: 700; font-size: var(--step-2); }
.brand-tagline { color: var(--text-muted); font-size: var(--step--1); }

.categories {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-4) var(--space-4) 0;
}

.grid-section,
.brand-detail-shell,
.page-shell {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-5) var(--space-4) var(--space-8);
}

.section-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: var(--space-3);
  margin: var(--space-5) 0 var(--space-4);
}
.section-title { font-size: var(--step-2); }
.result-count { color: var(--text-muted); font-size: var(--step--1); font-variant-numeric: tabular-nums; }

.grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
@media (min-width: 560px) { .grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 880px) { .grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: var(--space-7);
  background: var(--surface);
}
.site-footer > * {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-5) var(--space-4);
}
.footer-links { display: flex; flex-wrap: wrap; gap: var(--space-4); font-size: var(--step--1); }
.disclosure { color: var(--text-muted); font-size: var(--step--1); max-width: 62ch; }

.toast-region {
  position: fixed; left: 50%; bottom: var(--space-5);
  transform: translateX(-50%);
  z-index: 60;
  display: flex; flex-direction: column; gap: var(--space-2);
  align-items: center; pointer-events: none;
  width: min(92vw, 420px);
}