/* ==========================================================================
   Components — Command Palette, Theme Modal, TOC, Cards & Backlinks
   ========================================================================== */

/* Breadcrumbs */
.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: var(--text-muted);
}

.breadcrumbs a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.breadcrumbs a:hover {
  color: var(--color-accent);
}

.breadcrumb-separator {
  color: var(--text-faint);
  margin: 0 0.1rem;
}

.breadcrumb-current {
  color: var(--text-ink);
  font-weight: 500;
}

/* Tag Chips */
.tag-chip {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.15rem 0.55rem;
  border-radius: 9999px;
  background: var(--bg-card);
  border: 1px solid var(--border-hairline);
  color: var(--text-muted);
  transition: all 0.15s ease;
}

.tag-chip:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Sticky Right Rail TOC */
.toc-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  font-weight: 600;
  display: block;
  margin-bottom: 1rem;
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toc-item-h3 {
  padding-left: 0.85rem;
}

.toc-link {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
  display: block;
  line-height: 1.45;
  transition: all 0.15s ease;
  border-left: 2px solid transparent;
  padding-left: 0.5rem;
}

.toc-link:hover {
  color: var(--text-ink);
}

.toc-link.is-active {
  color: var(--color-accent);
  border-left-color: var(--color-accent);
  font-weight: 500;
}

/* Prev / Next Footer Nav */
.prev-next-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-hairline);
}

.prev-next-card {
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
  border-radius: 10px;
  border: 1px solid var(--border-hairline);
  text-decoration: none;
  background: var(--bg-card);
  transition: all 0.18s ease;
}

.prev-next-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.prev-next-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.prev-next-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--text-ink);
  line-height: 1.2;
}

.next-card {
  text-align: right;
  align-items: flex-end;
}

/* Backlinks Section */
.backlinks-section {
  margin-top: 3rem;
  padding: 1.5rem;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-hairline);
}

.backlinks-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.backlinks-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.backlink-link {
  display: block;
  text-decoration: none;
  color: inherit;
  padding: 0.65rem;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: all 0.15s ease;
}

.backlink-link:hover {
  background: var(--bg-hover);
  border-color: var(--border-hairline);
}

.backlink-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--color-accent);
  display: block;
  margin-bottom: 0.25rem;
}

.backlink-snippet {
  font-size: 0.825rem;
  color: var(--text-muted);
  display: block;
  line-height: 1.5;
}

/* Folder Page Grid */
.folder-header {
  margin-bottom: 2rem;
}

.folder-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  margin-top: 0.5rem;
}

.folder-contents-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.folder-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.25rem;
}

.folder-card {
  display: flex;
  gap: 1rem;
  padding: 1.35rem;
  border-radius: 10px;
  border: 1px solid var(--border-hairline);
  background: var(--bg-card);
  text-decoration: none;
  color: var(--text-ink);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.folder-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.folder-card-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.folder-card-content {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.folder-card-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 400;
  margin: 0;
  line-height: 1.2;
}

.folder-card-summary {
  font-size: 0.825rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin: 0;
}

.folder-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.35rem;
}

.folder-card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.folder-card-date {
  opacity: 0.85;
}

/* ==========================================================================
   Command Palette Modal (kunj.dev search style)
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 10, 0.5);
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 10vh;
  z-index: 2000;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal-backdrop.is-open {
  display: flex;
}

.palette-dialog {
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 16px;
  width: 90%;
  max-width: 640px;
  max-height: 75vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.22);
  overflow: hidden;
}

[data-theme="dark"] .palette-dialog {
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.65);
}

.palette-header {
  display: flex;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-hairline);
  gap: 0.85rem;
  background: var(--bg-surface);
}

.palette-search-icon {
  color: var(--text-muted);
}

.palette-input {
  width: 100%;
  border: none;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  color: var(--text-ink);
  outline: none;
}

.palette-input::placeholder {
  color: var(--text-muted);
}

.palette-results-container {
  overflow-y: auto;
  padding: 0.75rem;
  flex: 1;
}

/* Quick Search Suggestions from kunj.dev */
.palette-suggestions {
  padding: 1.25rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.palette-suggestions-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.palette-tag-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-pill-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  border: 1px solid var(--border-hairline);
  border-radius: 9999px;
  padding: 0.35rem 0.85rem;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.tag-pill-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--bg-hover);
}

.palette-subtext {
  font-size: 0.8rem;
  color: var(--text-faint);
  margin-top: 0.5rem;
}

.palette-result-item {
  padding: 0.85rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  border: 1px solid transparent;
  transition: all 0.15s ease;
}

.palette-result-item:hover,
.palette-result-item.is-selected {
  background: var(--bg-hover);
  border-color: var(--border-hairline);
}

.palette-result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.palette-result-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--text-ink);
}

.palette-result-folder {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: var(--text-muted);
}

.palette-result-snippet {
  font-size: 0.825rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.palette-result-snippet mark {
  background: var(--color-accent);
  color: var(--bg-canvas);
  padding: 0 0.2rem;
  border-radius: 2px;
  font-weight: 500;
}

.palette-result-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.palette-footer {
  padding: 0.65rem 1.25rem;
  background: var(--bg-sidebar);
  border-top: 1px solid var(--border-hairline);
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Theme Picker Modal (Eye-Comfort Palettes)
   ========================================================================== */

.theme-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 10, 0.45);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2100;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.theme-modal-backdrop.is-open {
  display: flex;
}

.theme-modal-dialog {
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 16px;
  width: 90%;
  max-width: 520px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.25);
  overflow: hidden;
}

.theme-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-hairline);
}

.theme-modal-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--text-ink);
}

.theme-modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  display: flex;
  align-items: center;
}

.theme-options-list {
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.theme-option-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--border-hairline);
  background: var(--bg-card);
  cursor: pointer;
  transition: all 0.18s ease;
}

.theme-option-card:hover {
  border-color: var(--color-accent);
  background: var(--bg-hover);
}

.theme-option-card.is-active {
  border-color: var(--color-accent);
  background: var(--color-accent-light);
}

.theme-swatch-circle {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.theme-swatch-inner-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.theme-option-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.theme-option-name {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-ink);
}

.theme-option-desc {
  font-size: 0.785rem;
  color: var(--text-muted);
}

/* Drag & Drop Overlay */
.drop-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 77, 31, 0.12);
  border: 2px dashed var(--color-accent);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 3000;
  pointer-events: none;
}

.drop-overlay.is-active {
  display: flex;
}

.drop-card {
  background: var(--bg-surface);
  padding: 2rem 3rem;
  border-radius: 12px;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--color-accent);
  border: 1px solid var(--border-hairline);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
}

/* Drawer Backdrop for Mobile */
.drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 10, 0.5);
  z-index: 1000;
  display: none;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.drawer-backdrop.is-open {
  display: block;
}

/* Dotted grid empty state */
.not-found-page,
.folder-empty-state,
.palette-empty-state {
  padding: 3.5rem 1.5rem;
  text-align: center;
  border-radius: 12px;
  border: 1px dashed var(--border-hairline);
  background-image: radial-gradient(var(--border-hairline) 1px, transparent 1px);
  background-size: 16px 16px;
  color: var(--text-muted);
}