/* ==========================================================================
   MBH — page.css
   Shared inner-page furniture: page hero, filter chips, tabs
   Loaded on every page except the home page.
   ========================================================================== */

/* --------------------------------------------------------- page hero */
.page-hero {
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--header-h-sm) + clamp(40px, 5vw, 68px));
  padding-bottom: clamp(40px, 5vw, 68px);
  background: var(--green-900);
}

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

.page-hero__inner { position: relative; z-index: 1; max-width: 900px; }

.page-hero .display {
  max-width: 17ch;
  color: var(--paper);
  font-size: clamp(2rem, 4vw, 3.35rem);
  letter-spacing: -0.032em;
  line-height: 1.05;
}

.page-hero__rule {
  display: block;
  width: 54px;
  height: 2px;
  margin: clamp(20px, 2.4vw, 28px) 0;
  background: var(--accent);
}

.page-hero__lead {
  max-width: 52ch;
  color: rgba(254, 254, 254, 0.76);
  font-size: var(--fs-lead);
  line-height: 1.65;
}

/* Optional meta row along the bottom of a page hero */
.page-hero__meta {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px clamp(24px, 3.4vw, 52px);
  margin-top: clamp(28px, 3vw, 40px);
  padding-top: 24px;
  border-top: 1px solid rgba(254, 254, 254, 0.16);
}

.page-hero__meta li {
  display: flex;
  align-items: center;
  gap: 9px;
  color: rgba(254, 254, 254, 0.7);
  font-size: 0.75rem;
}

.page-hero__meta li::before {
  content: "";
  flex: none;
  width: 10px;
  height: 2px;
  background: var(--accent);
  transform: skewX(-19deg);
}

/* --------------------------------------------------------- filter chips */
.filterbar {
  position: sticky;
  top: var(--header-h-sm);
  z-index: 40;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.filterbar__inner {
  display: flex;
  gap: 8px;
  padding-block: 16px;
  overflow-x: auto;
  scrollbar-width: none;
}

.filterbar__inner::-webkit-scrollbar { display: none; }

.chip {
  flex: none;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  font-size: var(--fs-small);
  font-weight: 500;
  white-space: nowrap;
  transition: background-color 0.4s var(--ease),
              color 0.4s var(--ease),
              border-color 0.4s var(--ease);
}

.chip:hover { border-color: var(--green-900); color: var(--green-900); }

.chip[aria-pressed="true"] {
  background: var(--green-900);
  border-color: var(--green-900);
  color: var(--paper);
}

.chip__count {
  margin-left: 7px;
  font-size: 0.6875rem;
  opacity: 0.55;
}

/* --------------------------------------------------------- tabs */
.tabs {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  margin-bottom: clamp(30px, 3.4vw, 44px);
  border: 1px solid var(--line);
}

.tab {
  padding: 10px 20px;
  color: var(--muted);
  font-size: var(--fs-small);
  font-weight: 600;
  transition: background-color 0.4s var(--ease), color 0.4s var(--ease);
}

.tab:hover { color: var(--green-900); }

.tab[aria-selected="true"] { background: var(--green-900); color: var(--paper); }

/* Panels fade between states rather than snapping */
.tabpanel[hidden] { display: none; }

/* --------------------------------------------------------- empty state */
.empty {
  padding: clamp(40px, 5vw, 64px);
  border: 1px dashed var(--line);
  text-align: center;
  color: var(--muted);
  font-size: var(--fs-small);
}