/* ═══════════════════════════════════════
   Shared Moments — Phase 4A
   Contextual index components shared between the Celebration detail
   page and the Gathering board (Kitchen / Fire).

   Visual tone: calm, archival, warm. Not a social feed.
   No reactions, no popularity sort, no infinite scroll.
   ═══════════════════════════════════════ */

/* ── Index container ────────────────────────────────────────────────────── */
.sm-index {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.sm-index__loading,
.sm-index__failed,
.sm-index__empty {
  padding: var(--space-5);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  font-style: italic;
  text-align: center;
}

.sm-index__failed {
  color: var(--text-secondary);
}

.sm-index__empty p {
  margin: 0;
}

.sm-index__more {
  display: flex;
  justify-content: center;
  padding-top: var(--space-2);
}

.sm-index__more-btn {
  min-width: 140px;
}

/* ── Group ──────────────────────────────────────────────────────────────── */
.sm-index__group + .sm-index__group {
  border-top: 1px dashed var(--border-color, rgba(0, 0, 0, 0.08));
  padding-top: var(--space-5);
}

.sm-index__group-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-3);
  margin-bottom: var(--space-3);
}

.sm-index__group-heading {
  margin: 0;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

.sm-index__group-link {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}

.sm-index__group-link:hover,
.sm-index__group-link:focus-visible {
  border-bottom-color: var(--text-secondary);
}

.sm-index__group-text {
  color: var(--text-primary);
}

.sm-index__group-kind {
  font-size: var(--font-size-xs);
}

/* ── Grid ───────────────────────────────────────────────────────────────── */
.sm-index__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-4);
}

/* ── Card ───────────────────────────────────────────────────────────────── */
.sm-card {
  margin: 0;
  display: flex;
  flex-direction: column;
  background: var(--surface-cream, #FAF7F2);
  border: 1px solid var(--border-color, rgba(0, 0, 0, 0.06));
  border-radius: var(--radius-md, 10px);
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.sm-card:hover {
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.06);
}

.sm-card__thumb {
  position: relative;
  aspect-ratio: 1 / 1;
  background: var(--surface-shade, #EFE9DF);
  overflow: hidden;
}

.sm-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.sm-card__open {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
  z-index: 1;
}

.sm-card__open:focus-visible {
  outline: 2px solid var(--color-amber-dark, var(--text-secondary));
  outline-offset: -2px;
  border-radius: var(--radius-sm, 4px);
}

.sm-card__remove-btn {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 0;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.15s ease, background 0.15s ease;
  z-index: 2;
}

.sm-card:hover .sm-card__remove-btn,
.sm-card:focus-within .sm-card__remove-btn,
.sm-card__remove-btn:focus-visible {
  opacity: 1;
}

.sm-card__remove-btn:hover {
  background: rgba(0, 0, 0, 0.75);
}

.sm-card__remove-btn:focus-visible {
  outline: 2px solid var(--color-amber-dark, var(--text-secondary));
  outline-offset: 2px;
}

.sm-card__caption {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  padding: var(--space-3) var(--space-3) 0;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

.sm-card__meta {
  font-size: var(--font-size-xs);
  color: var(--text-muted, var(--text-secondary));
  padding: var(--space-2) var(--space-3) var(--space-3);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  align-items: baseline;
}

.sm-card__byline {
  color: var(--text-secondary);
}

.sm-card__sep {
  opacity: 0.6;
}

.sm-card__date {
  color: var(--text-muted, var(--text-secondary));
}

.sm-card__source {
  padding: 0 var(--space-3) var(--space-3);
}

/* ── Source link / chip ─────────────────────────────────────────────────── */
.sm-source-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  text-decoration: none;
  padding: 2px 8px;
  border-radius: 9999px;
  background: var(--surface-shade, rgba(0, 0, 0, 0.04));
  border: 1px solid transparent;
  line-height: 1.4;
  max-width: 100%;
  transition: background 0.15s ease, border-color 0.15s ease;
}

a.sm-source-link:hover,
a.sm-source-link:focus-visible {
  border-color: var(--border-color, rgba(0, 0, 0, 0.12));
  background: var(--surface-cream, #FAF7F2);
}

a.sm-source-link:focus-visible {
  outline: 2px solid var(--color-amber-dark, var(--text-secondary));
  outline-offset: 2px;
}

.sm-source-link--inline {
  background: transparent;
  padding: 0;
  border: 0;
  color: var(--text-secondary);
}

.sm-source-link--missing,
.sm-source-link--unavailable {
  color: var(--text-muted, var(--text-secondary));
  font-style: italic;
}

.sm-source-link--unlinked {
  cursor: default;
}

.sm-source-link__icon {
  flex-shrink: 0;
}

.sm-source-link__kind {
  font-weight: 500;
}

.sm-source-link__label {
  max-width: 18ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sm-source-link__sep {
  opacity: 0.5;
}

/* ── Gathering board section (collapsible) ──────────────────────────────── */
.sm-gathering-section {
  margin-top: var(--space-8);
  padding: var(--space-5);
  background: var(--surface-cream, #FAF7F2);
  border: 1px solid var(--border-color, rgba(0, 0, 0, 0.06));
  border-radius: var(--radius-lg, 12px);
}

.sm-gathering-section__summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-2) var(--space-3);
}

.sm-gathering-section__summary::-webkit-details-marker {
  display: none;
}

.sm-gathering-section__summary:focus-visible {
  outline: 2px solid var(--color-amber-dark, var(--text-secondary));
  outline-offset: 4px;
  border-radius: var(--radius-sm, 6px);
}

.sm-gathering-section__title {
  grid-column: 1;
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.sm-gathering-section__sub {
  grid-column: 2;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.sm-gathering-section__chevron {
  grid-column: 3;
  color: var(--text-secondary);
  font-size: 18px;
  transition: transform 0.18s ease;
}

.sm-gathering-section[open] .sm-gathering-section__chevron {
  transform: rotate(180deg);
}

.sm-gathering-section__body {
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-color, rgba(0, 0, 0, 0.06));
}

/* ── Lightbox (Phase 4B) ────────────────────────────────────────────────── */
.sm-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  opacity: 0;
  transition: opacity 0.18s ease;
}

.sm-lightbox--open {
  opacity: 1;
}

.sm-lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.78);
  cursor: zoom-out;
}

.sm-lightbox__panel {
  position: relative;
  z-index: 1;
  background: var(--surface-elevated, var(--surface-cream, #FAF7F2));
  border-radius: var(--radius-lg, 12px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
  max-width: min(960px, 100%);
  max-height: calc(100vh - var(--space-8));
  width: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.98);
  transition: transform 0.18s ease;
}

.sm-lightbox--open .sm-lightbox__panel {
  transform: scale(1);
}

.sm-lightbox__close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  z-index: 2;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 0;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease;
}

.sm-lightbox__close:hover {
  background: rgba(0, 0, 0, 0.78);
}

.sm-lightbox__close:focus-visible {
  outline: 2px solid var(--color-amber-dark, var(--text-secondary));
  outline-offset: 2px;
}

.sm-lightbox__media {
  background: #111;
  display: flex;
  align-items: center;
  justify-content: center;
  /* Cap the image area so info stays visible on shorter viewports.
     Use min-height:0 so flex allows it to shrink when the Save form is open. */
  max-height: calc(100vh - 220px);
  min-height: 0;
  overflow: hidden;
  flex: 0 1 auto;
}

.sm-lightbox__img {
  display: block;
  max-width: 100%;
  max-height: calc(100vh - 220px);
  width: auto;
  height: auto;
  object-fit: contain;
}

.sm-lightbox__info {
  padding: var(--space-4) var(--space-5) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  background: var(--surface-cream, #FAF7F2);
  color: var(--text-primary);
  /* Allow the info column to scroll when the Save form expands beyond the
     panel's max-height. Image area uses min-height:0 below so it can shrink. */
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
}

.sm-lightbox__caption {
  margin: 0;
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--text-primary);
  white-space: pre-wrap;
  overflow-wrap: break-word;
}

.sm-lightbox__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-2);
  align-items: baseline;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.sm-lightbox__byline {
  color: var(--text-secondary);
}

.sm-lightbox__sep {
  opacity: 0.6;
}

.sm-lightbox__date {
  color: var(--text-muted, var(--text-secondary));
}

.sm-lightbox__source {
  margin-top: var(--space-1);
}

/* ── Lightbox action area (Phase 5B: Save as Story) ─────────────────────── */
.sm-lightbox__actions {
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px dashed var(--border-color, rgba(0, 0, 0, 0.08));
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.sm-lightbox__actions--saved {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-3);
}

.sm-lightbox__actions--partial {
  gap: var(--space-1);
}

.sm-lightbox__partial-copy {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.4;
}

.sm-lightbox__saved-chip {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-style: italic;
}

.sm-lightbox__view-link {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--text-secondary);
  padding-bottom: 1px;
  transition: border-color 0.15s ease;
}

.sm-lightbox__view-link:hover,
.sm-lightbox__view-link:focus-visible {
  border-bottom-color: var(--text-primary);
}

.sm-lightbox__save-btn {
  align-self: flex-start;
}

.sm-lightbox__save-form[hidden] {
  display: none;
}

.sm-lightbox__save-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.sm-lightbox__save-label {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  font-weight: 500;
}

.sm-lightbox__save-input,
.sm-lightbox__save-textarea {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border-color, rgba(0, 0, 0, 0.12));
  border-radius: var(--radius-sm, 6px);
  background: var(--surface-elevated, #fff);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  font-family: inherit;
  line-height: 1.4;
  box-sizing: border-box;
}

.sm-lightbox__save-textarea {
  resize: vertical;
  min-height: 64px;
}

.sm-lightbox__save-input:focus-visible,
.sm-lightbox__save-textarea:focus-visible {
  outline: 2px solid var(--color-amber-dark, var(--text-secondary));
  outline-offset: 1px;
  border-color: transparent;
}

.sm-lightbox__save-buttons {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  margin-top: var(--space-1);
}

.sm-lightbox__save-error {
  font-size: var(--font-size-sm);
  color: var(--color-terracotta-dark, #a04a3a);
  margin-top: var(--space-1);
}

.sm-lightbox__save-error[hidden] {
  display: none;
}

/* ── Phase 5C-2 — Recipe Detail "Connected Moments" section ─────────────── */

.sm-recipe-connected {
  margin-top: var(--space-8, 32px);
  padding-top: var(--space-6, 24px);
  margin-bottom: var(--space-8, 32px);
  border-top: 1px solid var(--color-border-soft, #e6dfd5);
}

.sm-recipe-connected[hidden] {
  display: none;
}

.sm-recipe-connected__header {
  margin-bottom: var(--space-4, 16px);
}

.sm-recipe-connected__title {
  margin: 0 0 var(--space-1, 4px);
  font-size: var(--font-size-lg, 18px);
  font-weight: 600;
  color: var(--color-text, #2f2823);
  letter-spacing: -0.005em;
}

.sm-recipe-connected__sub {
  margin: 0;
  font-size: var(--font-size-sm, 14px);
  color: var(--color-text-soft, #6a5e54);
  line-height: 1.5;
}

.sm-recipe-connected__body {
  /* Inherits .sm-index spacing from the shared moments index. */
}

/* ── Phase 5C-1 — Connect to Recipe picker ─────────────────────────────── */

.sm-lightbox__connect-form {
  /* Inherits .sm-lightbox__save-form layout (flex column + gap). The picker
     adds a scrollable list region that sizes itself to whatever space the
     lightbox info column gives it. */
}

.sm-lightbox__connect-helper {
  margin: 0 0 var(--space-1);
  font-size: var(--font-size-sm);
  color: var(--color-text-soft, #6a5e54);
  line-height: 1.4;
}

.sm-lightbox__connect-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 220px;
  overflow-y: auto;
  border: 1px solid var(--color-border-soft, #e6dfd5);
  border-radius: var(--radius-sm, 6px);
  background: var(--color-surface, #fdfaf5);
  padding: var(--space-1);
}

.sm-lightbox__connect-loading,
.sm-lightbox__connect-empty {
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-soft, #6a5e54);
  text-align: center;
}

.sm-lightbox__connect-empty .sm-lightbox__view-link {
  margin-left: var(--space-2);
}

.sm-lightbox__picker-section-title {
  font-size: var(--font-size-xs, 12px);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-soft, #6a5e54);
  padding: var(--space-2) var(--space-2) var(--space-1);
}

.sm-lightbox__picker-section-title:first-child {
  padding-top: 0;
}

.sm-lightbox__recipe-row {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm, 6px);
  padding: var(--space-2) var(--space-3);
  font: inherit;
  font-size: var(--font-size-base);
  color: var(--color-text, #2f2823);
  cursor: pointer;
  transition: background-color 120ms ease, border-color 120ms ease;
}

.sm-lightbox__recipe-row:hover,
.sm-lightbox__recipe-row:focus-visible {
  background: var(--color-surface-soft, #f6efe2);
  outline: none;
}

.sm-lightbox__recipe-row.is-selected,
.sm-lightbox__recipe-row[aria-selected="true"] {
  background: var(--color-amber-tint, #f5e9cf);
  border-color: var(--color-amber, #d4a73a);
}

/* ── Phase 5C-3 — Preserve as Recipe Heirloom intent step ───────────────── */

.sm-lightbox__heirloom-form {
  /* Inherits .sm-lightbox__save-form layout. The two-step structure shows
     one step at a time via the [hidden] attribute on its child wrappers. */
}

.sm-lightbox__heirloom-target {
  margin: 0 0 var(--space-1, 4px);
  font-size: var(--font-size-base, 15px);
  color: var(--color-text, #2f2823);
  line-height: 1.5;
}

.sm-lightbox__heirloom-target strong {
  font-weight: 600;
  word-break: break-word;
}

.sm-lightbox__heirloom-form .sm-lightbox__save-textarea {
  min-height: 84px;
}

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .sm-index__grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--space-3);
  }
  .sm-gathering-section__summary {
    grid-template-columns: 1fr auto;
  }
  .sm-gathering-section__sub {
    grid-column: 1;
  }
  .sm-gathering-section__chevron {
    grid-column: 2;
    grid-row: 1;
  }
  .sm-card__remove-btn {
    opacity: 1; /* mobile has no hover; always show */
  }
  .sm-lightbox {
    padding: var(--space-3);
  }
  .sm-lightbox__panel {
    max-height: 100vh;
    border-radius: var(--radius-md, 10px);
  }
  .sm-lightbox__media {
    max-height: 55vh;
  }
  .sm-lightbox__img {
    max-height: 55vh;
  }
  .sm-lightbox__info {
    padding: var(--space-3) var(--space-4) var(--space-4);
  }
  .sm-lightbox__close {
    width: 40px;
    height: 40px;
    font-size: 24px;
  }
  .sm-lightbox__connect-list {
    max-height: 180px;
  }
  .sm-lightbox__heirloom-form .sm-lightbox__save-buttons {
    flex-wrap: wrap;
  }
}

/* Preserved Badges */
.sm-card__preserved {
  padding: 0 var(--space-3) var(--space-3);
  margin-top: calc(-1 * var(--space-1));
}

.sm-card__preserved-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-size-xs);
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 9999px;
  line-height: 1.4;
}

.sm-card__preserved-chip--story {
  background: var(--bg-emerald-light, #e6f4ea);
  color: var(--text-emerald, #137333);
}

.sm-card__preserved-chip--recipe {
  background: var(--bg-blue-light, #e8f0fe);
  color: var(--text-blue, #1a73e8);
}

.sm-card__preserved-chip--heirloom {
  background: var(--bg-purple-light, #f3e8fd);
  color: var(--text-purple, #a530f2);
}

/* Mobile tab wrapping helper */
.collections-tabs.sm-tabs {
  flex-wrap: wrap;
  row-gap: var(--space-2);
}