/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.7rem 1.25rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
  min-height: 44px;
  text-decoration: none;
  line-height: 1;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }

.btn-primary { background: var(--color-primary); color: var(--color-on-primary); }
.btn-primary:hover { background: var(--color-primary-hover); }

.btn-accent { background: var(--color-accent); color: #fff; }
.btn-accent:hover { background: var(--color-accent-hover); }

.btn-outline {
  background: transparent;
  border-color: var(--color-border-strong);
  color: var(--color-text);
}
.btn-outline:hover { background: var(--color-surface-hover); }

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
}
.btn-ghost:hover { background: var(--color-surface-hover); color: var(--color-text); }

.btn-sm { padding: 0.45rem 0.9rem; font-size: 0.85rem; min-height: 36px; }
.btn-icon { min-width: 44px; min-height: 44px; padding: 0; border-radius: var(--radius-pill); }

/* ---------- Top navigation ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-3);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--color-text);
}
.brand:hover { text-decoration: none; }
.brand svg { color: var(--color-primary); }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.95rem;
}
.nav-links a:hover, .nav-links a[aria-current='page'] {
  color: var(--color-primary);
  text-decoration: none;
}

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

.nav-toggle { display: none; }

@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    inset: 64px 0 0 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--color-bg);
    padding: var(--space-5);
    gap: var(--space-1);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
  }
  .nav-links[data-open='true'] { transform: translateX(0); }
  .nav-links a {
    padding: var(--space-4);
    border-radius: var(--radius-sm);
    font-size: 1.05rem;
  }
  .nav-links a:hover { background: var(--color-surface-hover); }
  .nav-toggle { display: inline-flex; }
}

/* ---------- Theme toggle ---------- */
.theme-toggle {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-sun { display: none; }
:root[data-theme='dark'] .theme-toggle .icon-moon { display: none; }
:root[data-theme='dark'] .theme-toggle .icon-sun { display: block; }

/* ---------- Hero ---------- */
.hero {
  padding-block: var(--space-8) var(--space-7);
  background:
    radial-gradient(60% 60% at 85% 0%, color-mix(in srgb, var(--color-primary) 16%, transparent), transparent 70%),
    radial-gradient(50% 50% at 10% 10%, color-mix(in srgb, var(--color-accent) 12%, transparent), transparent 70%);
}
.hero-inner { text-align: center; max-width: 760px; margin-inline: auto; }
.hero p.lede { font-size: 1.15rem; color: var(--color-text-muted); margin-inline: auto; }

.search-shell {
  margin-top: var(--space-6);
  position: relative;
}

.search-box {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-pill);
  padding: var(--space-2) var(--space-2) var(--space-2) var(--space-5);
  box-shadow: var(--shadow-md);
}
.search-box svg { flex-shrink: 0; color: var(--color-text-faint); }
.search-box input {
  flex: 1;
  border: 0;
  background: transparent;
  font-size: 1.05rem;
  padding: var(--space-3) 0;
  min-width: 0;
  color: var(--color-text);
}
.search-box input:focus { outline: none; }
.search-box .btn { flex-shrink: 0; }

.search-suggestions {
  position: absolute;
  inset-inline: 0;
  top: calc(100% + var(--space-2));
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  text-align: left;
  z-index: var(--z-dropdown);
}
.search-suggestions ul { list-style: none; margin: 0; padding: var(--space-2); }
.search-suggestions li a, .search-suggestions li button {
  display: flex;
  width: 100%;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  background: none;
  border: none;
  text-align: left;
  font-size: 0.95rem;
}
.search-suggestions li a:hover,
.search-suggestions li button:hover,
.search-suggestions li a[data-active='true'],
.search-suggestions li button[data-active='true'] {
  background: var(--color-surface-hover);
  text-decoration: none;
}
.search-suggestions .suggestion-meta { color: var(--color-text-faint); font-size: 0.8rem; margin-left: auto; }

.hero-stats {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-6);
  margin-top: var(--space-7);
}
.hero-stat { text-align: center; }
.hero-stat strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
}
.hero-stat span { color: var(--color-text-muted); font-size: 0.9rem; }

/* ---------- Bento browse grid ---------- */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.bento-tile {
  grid-column: span 1;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.bento-tile:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-strong);
  text-decoration: none;
}
.bento-tile .tile-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--color-primary) 14%, transparent);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.bento-tile h3 { margin: 0; }
.bento-tile .tile-count { color: var(--color-text-faint); font-size: 0.85rem; }
.bento-tile.tile-wide { grid-column: span 2; }

@media (max-width: 960px) {
  .bento-grid { grid-template-columns: repeat(2, 1fr); }
  .bento-tile.tile-wide { grid-column: span 2; }
}
@media (max-width: 560px) {
  .bento-grid { grid-template-columns: 1fr; }
  .bento-tile.tile-wide { grid-column: span 1; }
}

/* ---------- Resource cards ---------- */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
}

.resource-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.resource-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-strong);
}

.resource-card-top { display: flex; align-items: flex-start; gap: var(--space-3); }
.resource-icon {
  flex-shrink: 0;
  width: 42px; height: 42px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  background: var(--color-bg-subtle);
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.7rem;
  text-transform: uppercase;
}

.resource-title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text);
  margin: 0;
  line-height: 1.35;
  word-break: break-word;
}

.resource-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3em 0.7em;
  border-radius: var(--radius-pill);
  background: var(--color-bg-subtle);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  white-space: nowrap;
}
.tag-primary { background: color-mix(in srgb, var(--color-primary) 14%, transparent); color: var(--color-primary); border-color: transparent; }
.tag-accent { background: color-mix(in srgb, var(--color-accent) 16%, transparent); color: var(--color-accent); border-color: transparent; }

.resource-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-faint);
}

.resource-actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

/* ---------- Filter sidebar / toolbar ---------- */
.browse-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--space-6);
  align-items: start;
}
@media (max-width: 900px) {
  .browse-layout { grid-template-columns: 1fr; }
}

.filter-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  position: sticky;
  top: 84px;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  max-height: calc(100vh - 104px);
  overflow-y: auto;
}

.filter-toggle { display: none; }
@media (max-width: 900px) {
  .filter-toggle { display: inline-flex; }
  .filter-panel {
    position: static;
    max-height: none;
    display: none;
  }
  .filter-panel.is-open { display: flex; }
}
.filter-group h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-3);
}
.filter-options { display: flex; flex-direction: column; gap: var(--space-1); }
.filter-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}
.filter-option:hover { background: var(--color-surface-hover); color: var(--color-text); }
.filter-option input { accent-color: var(--color-primary); width: 17px; height: 17px; }
.filter-option .count { color: var(--color-text-faint); font-size: 0.8rem; }

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}
.toolbar-left { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.result-count { color: var(--color-text-muted); font-size: 0.9rem; }

.select-field, .text-field {
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.8rem;
  font-size: 0.9rem;
  min-height: 40px;
}

.active-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}
.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: color-mix(in srgb, var(--color-primary) 12%, transparent);
  color: var(--color-primary);
  border-radius: var(--radius-pill);
  padding: 0.35rem 0.5rem 0.35rem 0.9rem;
  font-size: 0.82rem;
  font-weight: 600;
}
.filter-chip button {
  background: none; border: none; color: inherit;
  display: inline-flex; align-items: center; justify-content: center;
  width: 20px; height: 20px; border-radius: 50%;
}
.filter-chip button:hover { background: color-mix(in srgb, var(--color-primary) 22%, transparent); }

/* ---------- Empty / loading states ---------- */
.empty-state, .error-state {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  color: var(--color-text-muted);
}
.empty-state svg { color: var(--color-text-faint); margin-bottom: var(--space-3); }
.empty-state h3 { margin-bottom: var(--space-2); }

.skeleton-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
}
.skeleton-card {
  height: 176px;
  border-radius: var(--radius-lg);
  background: linear-gradient(100deg, var(--color-bg-subtle) 30%, var(--color-surface-hover) 50%, var(--color-bg-subtle) 70%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border: 1px solid var(--color-border);
}
@keyframes shimmer {
  from { background-position: 150% 0; }
  to { background-position: -50% 0; }
}

/* ---------- Breadcrumbs ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.85rem;
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
}
.breadcrumbs a { color: var(--color-text-muted); }
.breadcrumbs [aria-current='page'] { color: var(--color-text); font-weight: 600; }

/* ---------- Preview dialog ---------- */
.preview-dialog {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 0;
  width: min(920px, 92vw);
  max-height: 88vh;
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-lg);
}
.preview-dialog::backdrop { background: rgba(8, 12, 24, 0.6); backdrop-filter: blur(2px); }
.preview-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5);
  border-bottom: 1px solid var(--color-border);
}
.preview-body { padding: var(--space-5); overflow-y: auto; max-height: calc(88vh - 190px); }
.preview-body embed, .preview-body img { width: 100%; border-radius: var(--radius-sm); }
.preview-body pre {
  background: var(--color-bg-subtle);
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.6;
}
.preview-footer {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  padding: var(--space-5);
  border-top: 1px solid var(--color-border);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-6);
  color: var(--color-text-muted);
  font-size: 0.88rem;
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-5);
}
.footer-links { display: flex; gap: var(--space-4); flex-wrap: wrap; list-style: none; padding: 0; margin: 0; }
.footer-links a { color: var(--color-text-muted); }

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: var(--space-5);
  left: 50%;
  transform: translate(-50%, 12px);
  background: var(--color-text);
  color: var(--color-bg);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-lg);
  font-size: 0.9rem;
  z-index: var(--z-toast);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base);
}
.toast[data-visible='true'] { opacity: 1; transform: translate(-50%, 0); pointer-events: auto; }