/* Layout — header, sticky-nav, app-main, section-card, footer, export, loading. */

.app-header {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
}
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  max-width: 100%;
  margin: 0 auto;
  flex-wrap: wrap;
}
.header-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}
.header-toggles {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.app-title {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.logo {
  font-family: var(--font-mono);
  color: var(--accent);
  font-weight: 700;
}
.app-tagline {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
  max-width: 100%;
}
.deploy-stamp {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.72rem;
  color: var(--muted);
  white-space: nowrap;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
}
.deploy-stamp[hidden] { display: none; }

.sticky-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg-glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  padding: 4px var(--space-3);
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  scrollbar-width: thin;
  font-size: 0.85rem;
}
.sticky-nav a {
  white-space: nowrap;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  color: var(--muted);
}
.sticky-nav a:hover {
  background: var(--surface-2);
  color: var(--text);
  text-decoration: none;
}

.app-main {
  flex: 1;
  max-width: 100%;
  width: 100%;
  margin: 0 auto;
  padding: var(--space-2) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.section-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-2) var(--space-3);
  box-shadow: var(--shadow);
}
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
}
.section-head h2 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
}
.section-head-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
}

.app-footer {
  padding: var(--space-2) var(--space-4);
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.8rem;
}
.footer-row {
  max-width: 100%;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.freshness-banner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: 0 var(--space-4);
  padding: var(--space-2) var(--space-3);
  background: var(--accent-tint);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.85rem;
}
.freshness-banner[hidden] { display: none; }
.freshness-message { flex: 1; }
.freshness-banner .freshness-refresh {
  background: var(--accent);
  color: var(--bg);
  border: 0;
  border-radius: var(--radius-sm);
  padding: 4px 12px;
  font-size: 0.85rem;
  cursor: pointer;
}
.freshness-banner .freshness-refresh:hover { filter: brightness(1.1); }
.freshness-banner .freshness-dismiss {
  background: transparent;
  border: 0;
  color: var(--muted);
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
  padding: 0 6px;
}
.freshness-banner .freshness-dismiss:hover { color: var(--text); }

/* Export mode — hide UI chrome for clean PNG */
body.exporting [data-no-export] { display: none !important; }
body.exporting .app-main { padding: var(--space-2); }
body.exporting .model-actions { display: none; }
body.exporting { background: var(--bg); }

/* Loading state */
.loading {
  padding: var(--space-5);
  text-align: center;
  color: var(--muted);
}

#filters-reset {
  margin-left: auto;
}