/* ==========================================================================
   References (Queue and Display)
   ========================================================================== */

/* ==========================================================================
   Reference Tag Component (Base Styles)
   ========================================================================== */

/* Container for multiple reference tags */
.reference-tags {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

/* Individual reference tag card */
.reference-tag {
  position: relative; /* For absolute positioned × button */
  background-color: var(--parchment-300);
  border-radius: var(--radius-sm);
  padding: var(--space-sm);
  border-left-width: 3px;
  border-left-style: solid;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.reference-tag:hover {
  background-color: var(--parchment-400);
  box-shadow: var(--shadow-md);
}

.reference-tag-content {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.reference-tag-header {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.reference-tag-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.reference-icon-image {
  width: 1.25rem;
  height: 1.25rem;
  display: block;
  fill: currentcolor;
}

.reference-tag-name {
  font-family: var(--font-heading);
  color: var(--warm-grey-dark);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.3;
}

.reference-tag-name a {
  color: inherit;
  transition: color 0.2s;
}

.reference-tag-name a:hover {
  color: var(--accent-color, #06c);
  text-decoration: underline;
}

.reference-tag-note {
  color: var(--warm-grey);
  font-size: 0.9rem;
  font-style: italic;
}

.reference-note-container {
  margin-left: calc(1.25rem + var(--space-xs));
}

/* Editable reference note in display mode */
.reference-tag .reference-note-display {
  padding: 0.25rem;
  border-radius: var(--radius-sm);
  cursor: text;
  transition: background-color 0.2s ease;
}

.reference-tag .reference-note-display:hover {
  background-color: rgba(0, 0, 0, 0.03);
}

.reference-tag .reference-note-text {
  display: block;
}

.reference-tag .reference-note-placeholder {
  color: var(--warm-grey-light);
  font-style: normal;
}

/* Remove/delete button (× in top-right corner) */
.reference-remove {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: none;
  border: none;
  color: var(--danger);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.5;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.reference-remove:hover {
  opacity: 1;
  transform: scale(1.2);
}

/* Note input (replaces display when editing) */
.reference-note-input {
  /* Base input styling (matches forms.css .text-input pattern) */
  width: 100%;
  padding: 0.5rem;
  border: 2px solid var(--input-border-color, var(--warm-grey));
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  background-color: var(--input-bg-color, var(--parchment-light));
  color: var(--warm-grey-dark);

  /* Reference-specific */
  margin-top: 0.25rem;
}

.reference-note-input:focus {
  outline: none;
  border-color: var(--input-border-focus-color, var(--warm-grey-dark));
  background-color: var(--input-bg-focus-color, white);
}

/* Reference type display/edit */
.reference-type-container {
  margin-left: calc(1.25rem + var(--space-xs));
  margin-top: 0.25rem;
  margin-bottom: 0.25rem;
}

.reference-type-display {
  display: inline-block;
  padding: 0.125rem 0.25rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.reference-type-display:hover {
  background-color: rgba(0, 0, 0, 0.03);
}

.reference-type-label {
  font-size: 0.8125rem;
  font-style: italic;
  color: var(--warm-grey);
  line-height: 1.3;
}

/* Reference type select (replaces display when editing) */
.reference-type-select {
  padding: 0.375rem 0.5rem;
  border: 2px solid var(--input-border-color, var(--warm-grey));
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-style: italic;
  background-color: var(--input-bg-color, var(--parchment-light));
  color: var(--warm-grey-dark);
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.reference-type-select:focus {
  outline: none;
  border-color: var(--input-border-focus-color, var(--warm-grey-dark));
  background-color: var(--input-bg-focus-color, white);
}

/* ==========================================================================
   Reference Layouts
   ========================================================================== */

/* Reference Edit Layout - Side by Side */
.reference-edit-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.reference-edit-main {
  min-width: 0; /* Prevents grid overflow */
}

.reference-edit-sidebar {
  position: sticky;
  top: var(--space-md);
  height: fit-content;
  max-height: calc(100vh - 4rem);
  overflow-y: auto;
}

/* Resource Show Page Two-Column Layout */
.resource-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--space-xl);
  margin-top: var(--space-lg);
}

.resource-main {
  min-width: 0; /* Prevents grid overflow */
}

.resource-main .content-section:first-child h2 {
  margin-top: 0;
}

.resource-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.resource-sidebar .content-section {
  margin-bottom: 0;
  padding-top: var(--space-lg);
}

.resource-sidebar .content-section:first-child {
  margin-top: 0;
  padding-top: 0;
}

.resource-sidebar h3 {
  margin-top: 0;
  margin-bottom: var(--space-sm);
  font-size: 1.1rem;
  font-weight: 600;
}

/* Reference Queue Container */
.reference-queue-container {
  background-color: var(--parchment-base);
  border: 2px solid var(--parchment-dark);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.reference-queue-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--warm-grey-dark);
  margin: 0 0 var(--space-md) 0;
}

.reference-queue-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* ==========================================================================
   Queue-Specific Enhancements
   ========================================================================== */

/* Context field (surrounding text where mention was found - queue only) */
.reference-context {
  font-size: 0.85rem;
  color: var(--warm-grey);
  font-style: italic;
  margin-top: 0.25rem;
}

/* Locked state (queue-specific: references with notes persist when mention removed) */
.reference-locked {
  border-color: var(--queue-primary-color);
  background-color: var(--queue-primary-bg);
}

.reference-locked:hover {
  background-color: color-mix(in srgb, var(--queue-primary-color) 15%, var(--parchment-light));
}

.reference-locked .reference-tag-name {
  color: var(--queue-primary-color);
}

/* Responsive Layout */
@media (max-width: 1024px) /* wide */ {
  .reference-edit-layout {
    grid-template-columns: 1fr;
  }

  .reference-edit-sidebar {
    position: static;
    max-height: none;
  }

  .resource-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) /* tablet */ {
  .reference-tags {
    gap: var(--space-xs);  /* Tighter spacing */
  }

  .reference-tag {
    padding: var(--space-sm);  /* Slightly less padding */
  }
}