/* demo-hub — catalog styling on the app-kit dark core. */

* { box-sizing: border-box; margin: 0; padding: 0; }

html { color-scheme: dark; }

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(1100px 520px at 72% -8%, rgba(200, 144, 90, 0.07), transparent 62%),
    var(--ground-deep);
  color: var(--primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

/* -- Header -- */

.top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--frosted);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.top__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: var(--space-2) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--primary);
  text-decoration: none;
}

.brand__mark { width: 26px; height: auto; display: block; }

.brand__word {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
}

.brand__amp { color: var(--muted); }

.top__tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* -- Layout -- */

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--space-4);
  flex: 1;
}

/* -- Hero -- */

.hero { padding: var(--space-6) 0 var(--space-5); }

.hero__title {
  font-size: clamp(2.1rem, 5.5vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.05;
}

.hero__sub {
  margin-top: var(--space-3);
  max-width: 62ch;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--secondary);
}

.hero__stat {
  margin-top: var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* The one signal-colour use on this page (N1S restraint rule). */
.hero__stat .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lichen);
  flex: none;
}

/* -- Toolbar -- */

.toolbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-5);
}

.search {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-width: 240px;
}

.search__icon {
  position: absolute;
  left: 12px;
  color: var(--muted);
  pointer-events: none;
}

.search__input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 9px 40px 9px 34px;
  outline: none;
  transition: border-color 0.15s ease;
}

.search__input::placeholder { color: var(--muted); }
.search__input:focus { border-color: var(--copper); }
.search__input::-webkit-search-cancel-button { -webkit-appearance: none; }

.search__kbd {
  position: absolute;
  right: 10px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  padding: 1px 6px;
  pointer-events: none;
}

.chips { display: flex; flex-wrap: wrap; gap: var(--space-1); }

.chip {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--secondary);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 14px;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.chip:hover { border-color: var(--copper); color: var(--primary); }

.chip[aria-pressed="true"] {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--ground);
  font-weight: 600;
}

.chip:focus-visible,
.search__input:focus-visible,
.card:focus-visible,
.foot__link:focus-visible,
.brand:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 2px;
}

.count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
}

/* -- Grid + cards -- */

.grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: var(--space-4);
  padding-bottom: var(--space-6);
}

.card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  height: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-4);
  color: inherit;
  text-decoration: none;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(200, 144, 90, 0.5);
  box-shadow: var(--shadow);
}

.card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.card__domain {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
}

.card__domain svg {
  flex: none;
  color: var(--secondary);
  transition: color 0.18s ease;
}

.card:hover .card__domain svg { color: var(--copper); }

.card__status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--secondary);
}

.card__status .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex: none;
}

.card__status--live .dot { background: var(--status-live); }
.card__status--pilot .dot { background: var(--status-pilot); }
.card__status--internal .dot { background: var(--status-internal); }

.card__name {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.card__tagline {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.card__desc {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--secondary);
}

.card__foot {
  margin-top: auto;
  padding-top: var(--space-2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
}

.card__host {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card__lock { flex: none; opacity: 0.8; }

.card__arrow {
  flex: none;
  transition: transform 0.18s ease;
}

.card:hover .card__arrow { transform: translate(2px, -2px); color: var(--copper); }

/* -- Empty state -- */

.empty {
  text-align: center;
  padding: var(--space-6) 0;
  font-family: var(--font-mono);
}

.empty__line { font-size: 0.9rem; color: var(--secondary); }
.empty__hint { margin-top: var(--space-1); font-size: 0.75rem; color: var(--muted); }

/* -- Footer -- */

.foot { border-top: 1px solid var(--border); }

.foot__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
}

.foot__brand { display: inline-flex; align-items: center; gap: var(--space-2); }

.foot__mark { width: 16px; height: auto; color: var(--muted); }

.foot__link { color: var(--secondary); text-decoration: none; }
.foot__link:hover { color: var(--copper-hover); }

/* -- Responsive + motion -- */

@media (max-width: 640px) {
  .hero { padding-top: var(--space-5); }
  .search { width: 100%; }
  .count { margin-left: 0; width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
  .card:hover { transform: none; }
}