/* Shared public collection browsing, progress, and preview navigation. */
.collection-navigation { display: flex; flex-wrap: wrap; gap: 8px; padding-bottom: 16px; margin-block: 24px; border-bottom: 1px solid var(--line); }
.collection-navigation > * { display: inline-flex; align-items: center; min-height: 44px; padding: 8px 16px; border-radius: 6px; color: var(--accent); text-decoration: none; font-size: .9375rem; }
.collection-navigation [aria-current=page], .collection-navigation a:hover { background: var(--selection); }
.collection-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: stretch; }
.puzzle-card--collection { gap: 24px; }
.puzzle-card--collection .puzzle-card-title { display: block; text-align: left; }
.collection-card-heading { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.collection-card-heading h2 { flex: 0 0 auto; max-width: 100%; overflow-wrap: anywhere; }
.collection-card-meta { max-width: 100%; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
.collection-card-actions { display: grid; grid-auto-flow: column; grid-auto-columns: auto; gap: 12px; margin-top: auto; }
.collection-card-actions .button_to { display: contents; }
.collection-card-actions .public-button { padding-inline: 12px; overflow-wrap: normal; text-align: center; text-wrap: balance; }
.collection-notes { margin-top: 32px; font-size: .875rem; color: var(--muted); }
.collection-empty { padding-block: 32px; text-align: center; color: var(--muted); }
.collection-overview { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 24px; margin-block: 24px; }
.collection-overview h2 { margin-bottom: 8px; }
.collection-overview p { margin: 0; }
.collection-progress { display: grid; gap: 8px; min-width: 200px; max-width: 100%; font-size: .875rem; color: var(--muted); }
.collection-progress progress { width: 100%; height: 8px; border: 0; border-radius: 8px; overflow: hidden; background: var(--line); accent-color: var(--accent); }
.collection-progress progress::-webkit-progress-bar { background: var(--line); }
.collection-progress progress::-webkit-progress-value { background: var(--accent); }
.collection-progress progress::-moz-progress-bar { background: var(--accent); }
.collection-puzzles { list-style: none; margin: 0; padding: 0; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
.collection-puzzles > li { display: grid; grid-template-columns: 48px minmax(0, 1fr) auto; gap: 20px; align-items: center; padding: 20px 24px; }
.collection-puzzles > li + li { border-top: 1px solid var(--line); }
.collection-puzzle-number { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 6px; background: var(--selection); color: var(--accent); font-family: var(--font-sans); font-size: 1.5rem; }
.collection-puzzle-description h3 { font: inherit; font-weight: 600; margin: 0 0 4px; }
.collection-puzzle-description p { margin: 0; }
.collection-puzzle-actions { display: flex; gap: 12px; align-items: stretch; }
.collection-puzzle-actions form { display: flex; margin: 0; }
.collection-puzzle-actions .public-button { width: 100%; }
.collection-context { overflow-wrap: anywhere; margin-bottom: 24px; }
.collection-preview-toolbar { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 16px; }
.collection-preview-toolbar .public-form { flex: 1 1 320px; margin-bottom: 0; min-width: 0; }
.collection-preview-steps > .button_to { margin: 0; }
.collection-preview-steps { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.collection-preview-steps .field-hint { margin: 0; width: 8ch; flex: 0 0 8ch; text-align: center; font-variant-numeric: tabular-nums; white-space: nowrap; }
@media (max-width: 640px) {
  .collection-cards { grid-template-columns: minmax(0, 1fr); }
  .collection-navigation { gap: 4px; }
  .collection-navigation > * { padding-inline: 12px; }
  .collection-puzzles > li { grid-template-columns: 48px minmax(0, 1fr); gap: 16px; padding: 20px; }
  .collection-puzzle-actions { grid-column: 1 / -1; }
  .collection-puzzle-actions > * { flex: 1; }
  .collection-progress, .collection-preview-steps { width: 100%; }
  .collection-preview-steps:has(> .button_to) { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .collection-preview-steps > .button_to .public-button { width: 100%; }
  .collection-preview-steps:has(> .button_to) .field-hint { justify-self: center; }
}

/* Preview keeps its grid and both existing clue groups in ruled panes. */
@media (min-width: 1101px) {
  .crossword-sheet { gap: 0; border-block: 1px solid var(--line); }
  .crossword-sheet > .puzzle-grid-stage { border: 0; padding: 24px; background: transparent; border-radius: 0; }
  .crossword-clue-columns { align-self: stretch; gap: 0; background: var(--surface); border-left: 1px solid var(--line); }
  .crossword-clue-columns > section { min-width: 0; padding: 24px; }
  .crossword-clue-columns > section + section { border-left: 1px solid var(--line); }
}

/* Pack previews balance the grid against compact directional clue columns. */
.collection-preview-toolbar + .crossword-sheet .crossword-clues { font-size: .875rem; line-height: 1.5; padding-left: 1.5rem; }
.collection-preview-toolbar + .crossword-sheet .crossword-clues li { padding-left: 2px; margin-bottom: 8px; }
@media (min-width: 1101px) {
  .collection-preview-toolbar + .crossword-sheet { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); }
  .collection-preview-toolbar + .crossword-sheet > .puzzle-grid-stage { width: 100%; max-width: 574px; justify-self: center; }
  .collection-preview-toolbar + .crossword-sheet > .crossword-clue-columns { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; }
  .collection-preview-toolbar + .crossword-sheet > .crossword-clue-columns > section { padding: 20px 16px; }
}

/* Public pack catalogue: an editorial shelf with aligned card footers. */
.pack-catalogue .collection-cards { gap: 24px; }
.pack-catalogue .puzzle-card--collection { padding: 0; gap: 0; border-radius: 0; border-top: 3px solid var(--ink); }
.pack-catalogue .collection-card-heading { flex: 1; flex-direction: column; align-items: stretch; gap: 24px; padding: 24px; }
.pack-catalogue .collection-card-meta { order: -1; justify-content: flex-start; gap: 8px; }
.pack-catalogue .puzzle-card-title { flex: 1; }
.pack-catalogue .collection-card-actions { grid-auto-flow: initial; grid-template-columns: repeat(2, minmax(0, 1fr)); padding: 20px 24px; border-top: 1px solid var(--line); }
.pack-catalogue .collection-card-actions:has(> :nth-child(3)) { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.pack-catalogue .collection-card-actions .public-button { min-width: 0; height: 100%; }
.pack-catalogue .collection-notes { padding-block: 24px; border-top: 1px solid var(--line); }
.pack-catalogue .collection-notes p { margin: 0; }
@media (max-width: 800px) {
  .pack-catalogue .collection-cards { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .pack-catalogue .collection-card-heading { padding: 20px; }
  .pack-catalogue .collection-card-actions { padding: 16px; gap: 8px; }
  .pack-catalogue .collection-card-actions .public-button { padding-inline: 8px; }
}

/* Catalogue navigation, pack content and actions form ruled panes. */
.pack-catalogue-layout { border-block: 1px solid var(--line); }
.pack-catalogue-results { min-width: 0; }
.pack-catalogue-layout .collection-cards { grid-template-columns: minmax(0, 1fr); margin: 0; gap: 0; }
.pack-catalogue-layout .puzzle-card--collection { border: 0; border-bottom: 1px solid var(--line); }
.pack-catalogue-layout .collection-notes { width: auto; margin: 0; padding: 24px; border: 0; }
.pack-catalogue-layout .collection-navigation { margin: 0; padding: 16px; }
.pack-catalogue-layout .puzzle-pagination { padding-inline: 24px; }
@media (min-width: 1101px) {
  .pack-catalogue-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); }
  .pack-catalogue-layout .collection-navigation { flex-direction: column; align-content: start; justify-content: flex-start; border: 0; border-right: 1px solid var(--line); padding: 24px 16px; }
  .pack-catalogue-layout .puzzle-card--collection { display: grid; grid-template-columns: minmax(0, 1fr) 460px; }
  .pack-catalogue-layout .collection-card-actions { align-content: center; margin: 0; border-top: 0; border-left: 1px solid var(--line); padding: 24px 16px; }
}

/* Pack contents retain the browsing panes until play or preview opens. */
.pack-detail > section { min-width: 0; }
.pack-detail .collection-puzzles { border: 0; border-radius: 0; }
.pack-detail .collection-overview { margin: 0; padding: 24px 16px; }
.pack-detail .collection-overview:not(:has(> *)) { padding: 0; }
.pack-detail .collection-progress { min-width: 0; width: 100%; }
.pack-detail .collection-puzzle-number { border-radius: 0; background: transparent; font-variant-numeric: tabular-nums; }
.pack-detail .collection-puzzle-actions { min-width: 0; }
@media (min-width: 1101px) {
  .pack-detail-sidebar { border-right: 1px solid var(--line); }
  .pack-detail-sidebar .collection-navigation { border-right: 0; border-bottom: 1px solid var(--line); }
  .pack-detail .collection-overview .public-button { width: 100%; }
}

/* Keep the released-pack list beside the selected pack's contents. */
.pack-detail-list { min-width: 0; border-bottom: 1px solid var(--line); }
.pack-detail-list ul { list-style: none; padding: 0; margin: 0; }
.pack-detail-list li + li { border-top: 1px solid var(--line); }
.pack-detail-list li > a { display: flex; flex-direction: column; gap: 8px; padding: 20px 24px; color: var(--ink); text-decoration: none; overflow-wrap: anywhere; }
.pack-detail-list li > a:hover { background: var(--surface); }
.pack-detail-list li > a[aria-current=page] { background: var(--selection); box-shadow: inset 3px 0 var(--accent); }
.pack-detail-list-name { font-family: var(--font-serif); font-size: 1.2rem; line-height: 1.35; }
@media (min-width: 1101px) {
  .pack-detail.pack-catalogue-layout { grid-template-columns: 200px minmax(220px, .8fr) minmax(0, 2fr); }
  .pack-detail-list { border-bottom: 0; border-right: 1px solid var(--line); }
}

@media (min-width: 1101px) {
  .pack-catalogue-layout--included { grid-template-columns: minmax(0, 1fr); }
  .pack-detail.pack-catalogue-layout--included { grid-template-columns: minmax(220px, .8fr) minmax(0, 2fr); }
}
.pack-detail.pack-catalogue-layout--included > section > div { border-bottom: 1px solid var(--line); }

/* A static pack preview shares the solving workspace without editing controls. */
.pack-preview-page .crossword-grid { max-width: none; margin: 0; border-width: 1px; }
.pack-preview-page .crossword-grid .cell-number { font: 500 clamp(.4rem, 1.4vw, .6rem)/1.1 var(--font-sans); }
.pack-preview-page .pack-preview-clue-header { grid-template-columns: minmax(0, 1fr); }
.pack-preview-clue-header .player-current-clue { padding-inline: 16px; }
.pack-preview-clue-header .player-direction { cursor: default; }
.pack-preview-page .pack-preview-clue { margin-bottom: 0; white-space: normal; display: grid; grid-template-columns: 2em minmax(0, 1fr); gap: 6px; padding: 10px 8px; font-size: .875rem; line-height: 1.6; overflow-wrap: anywhere; }
@media (max-width: 640px) {
  .pack-preview-page .pack-preview-clue { padding: 8px 4px; gap: 2px; }
}

.pack-preview-page .player-clue-list { padding: 8px; }
@media (min-width: 1101px) { .pack-preview-page .player-clue-list { padding: 12px; } }
@media (max-width: 640px) { .pack-preview-page .player-clue-list { padding: 4px; } }

.pack-workspace-navigation { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin: 0; }
.pack-workspace-navigation > [aria-current] { font-size: .875rem; color: var(--muted); }
.pack-preview-toolbar .pack-preview-selector { flex: 0 1 280px; margin: 0; min-width: 0; }
.pack-preview-toolbar .collection-preview-steps { justify-content: flex-start; flex-wrap: wrap; gap: 8px; margin-left: auto; }
.pack-preview-toolbar .collection-preview-steps .button_to { margin: 0; }
.pack-preview-toolbar .player-tool:disabled { opacity: .45; cursor: default; }
.pack-preview-toolbar .public-button, .pack-preview-toolbar .player-tool { min-height: 44px; }

@media (max-width: 640px) {
  .pack-preview-toolbar .pack-preview-selector { flex-basis: auto; width: 100%; }
  .pack-preview-toolbar .collection-preview-steps:has(> .button_to) { display: flex; }
}

.pack-detail-purchase { padding: 16px 24px 20px; }
.pack-detail-purchase .button_to { margin: 0; }
.pack-detail-purchase .public-button { width: 100%; }
@media (min-width: 1101px) {
  .pack-catalogue-layout .collection-card-actions:has(> :nth-child(3)) { grid-template-columns: 1.5fr 1fr .8fr; }
  .pack-catalogue-layout .collection-card-actions .public-button { white-space: nowrap; }
}

/* Browsing headings align with the same wide panes as their content. */
.pack-catalogue > .guide, .guide:has(+ .pack-detail) { max-width: none; margin-inline: 0; }