/* Shared collection index and detail layout. Colors follow the user's theme. */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.collections-main {
  max-width: 1440px;
  margin: auto;
  padding: 146px 40px 60px;
}

.collections-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  margin-bottom: 28px;
}

/* Text outside game cards also needs an opaque surface over custom backgrounds. */
.collections-heading {
  padding: 24px;
  border: 1px solid var(--border-color);
  border-radius: 14px;
  background: var(--bg-card);
}

#collection-count {
  width: fit-content;
  max-width: 100%;
  padding: 10px 16px;
  border: 1px solid var(--border-color);
  border-radius: 9px;
  background: var(--bg-card);
}

h1 {
  font-size: clamp(2rem, 3.5vw, 3rem);
  letter-spacing: -.04em;
  margin: 12px 0;
  overflow-wrap: anywhere;
}

h2, h3 {
  margin: 0;
}

p {
  line-height: 1.6;
}

a {
  color: var(--accent-primary);
}

.collection-eyebrow {
  color: var(--accent-primary);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.collection-muted {
  color: var(--text-secondary);
  font-size: .85rem;
}

.collection-search {
  display: grid;
  gap: 10px;
  font-size: .8rem;
  width: 300px;
  flex-shrink: 0;
}

.collection-search input {
  padding: 12px 16px;
  font: inherit;
  border: 1px solid var(--border-color);
  border-radius: 9px;
  background: var(--bg-input);
  color: var(--text-primary);
  width: 100%;
}

/* Index cards. */
.collection-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.collection-card, .collection-game {
  display: block;
  overflow: hidden;
  border: 1px solid var(--border-color);
  border-radius: 14px;
  background: var(--bg-card);
  color: var(--text-primary);
  text-decoration: none;
  transition: border-color .2s, transform .2s;
}

.collection-card:hover, .collection-game:hover {
  border-color: var(--accent-primary);
  transform: translateY(-3px);
}

.collection-card-cover, .collection-game-cover, .collection-hero-cover {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-secondary), var(--bg-secondary));
  overflow: hidden;
}

.collection-card-cover {
  padding: 22px;
}

/* Match the 600 × 900 cover stacks shown on individual game pages. */
.collection-cover-stack {
  position: relative;
  isolation: isolate;
  width: min(100%, 200px);
  aspect-ratio: 600 / 900;
}

.collection-cover-layer {
  position: absolute;
  width: 64%; height: 64%;
  left: calc(var(--cover-index) * var(--cover-step));
  top: calc(36% - var(--cover-index) * var(--cover-step));
  z-index: calc(4 - var(--cover-index));
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent-secondary), var(--bg-secondary));
  box-shadow: 3px 4px 12px var(--shadow-color);
}

.collection-cover-stack[data-cover-count="1"] .collection-cover-layer {
  width: 100%; height: 100%; left: 0; top: 0;
}

.collection-card-cover img, .collection-card-cover video,
.collection-game-cover img, .collection-game-cover video,
.collection-hero-cover img, .collection-hero-cover video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.collection-cover-placeholder {
  font-size: 3rem;
  font-weight: 700;
  color: white;
  opacity: .65;
}

.collection-card-body {
  padding: 22px;
}

.collection-card-body h2 {
  font-size: 1.2rem;
  overflow-wrap: anywhere;
}

.collection-card-description {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  min-height: 2.8em;
  font-size: .85rem;
  color: var(--text-secondary);
}

.collection-card-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: .8rem;
}

.collection-card-meta strong {
  color: var(--accent-primary);
}

.collection-card-progress {
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
  margin: 18px 0 0;
  font-size: .8rem;
  color: var(--text-secondary);
}

.collection-empty {
  grid-column: 1 / -1;
  padding: 48px;
  text-align: center;
  background: var(--bg-card);
  border: 1px dashed var(--border-color);
  border-radius: 14px;
}

/* Detail hero, community stats, and personal completion progress. */
.collection-back {
  display: inline-block;
  padding: 10px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 9px;
  text-decoration: none;
  margin-bottom: 28px;
  font-size: .85rem;
}

.collection-summary {
  padding: 32px;
  border-radius: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
}

.collection-hero {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr) minmax(280px, .8fr);
  align-items: center;
  gap: 32px;
}

.collection-hero-info {
  min-width: 0;
}

.collection-hero-cover {
  aspect-ratio: 2 / 3;
  border-radius: 12px;
}

.collection-description {
  white-space: pre-line;
  color: var(--text-secondary);
  overflow-wrap: anywhere;
}

.collection-award {
  display: inline-block;
  padding: 12px 16px;
  border-radius: 9px;
  border: 1px solid var(--accent-primary);
  color: var(--accent-primary);
  font-weight: 600;
  font-size: .85rem;
}

.collection-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  padding-left: 24px;
  border-left: 1px solid var(--border-color);
}

.collection-metrics article {
  display: grid;
  gap: 12px;
  align-content: start;
  min-width: 0;
}

.collection-metrics span {
  font-size: .8rem;
  color: var(--text-secondary);
}

.collection-metrics strong {
  font-size: 1.9rem;
}

.collection-progress {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.collection-progress h2 {
  font-size: 1.1rem;
}

progress {
  width: 100%;
  height: 12px;
  accent-color: var(--accent-secondary);
}

.is-complete {
  color: var(--success-color);
}

.games-heading {
  margin-top: 32px;
}

.collection-game-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.collection-game-cover {
  aspect-ratio: 2 / 3;
}

.collection-game-body {
  padding: 18px;
}

.collection-game-body h3 {
  font-size: .95rem;
}

.collection-game-status {
  font-size: .75rem;
}

.collection-error {
  background: var(--bg-card);
  border: 1px solid var(--error-color);
  padding: 14px;
  border-radius: 9px;
  color: var(--error-color);
}

[hidden] {
  display: none !important;
}

a:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 4px;
}

/* Keep the layout usable alongside the navbar's mobile menu. */
@media (max-width: 1350px) {
  .collections-main { padding-top: 104px; }
}

@media (max-width: 1200px) {
  .collection-hero { grid-template-columns: 180px minmax(0, 1fr); }
  .collection-metrics { grid-column: 1 / -1; grid-template-columns: repeat(4, minmax(0, 1fr)); padding: 24px 0 0; border-left: 0; border-top: 1px solid var(--border-color); }
  .collection-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .collection-game-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
  .collections-main { padding: 100px 16px 32px; }
  .collections-heading { align-items: flex-start; flex-direction: column; gap: 14px; padding: 18px; }
  .collection-search { width: 100%; }
  .collection-grid { grid-template-columns: 1fr; }
  .collection-summary { padding: 22px; }
  .collection-hero { grid-template-columns: 1fr; gap: 18px; }
  .collection-hero-cover { width: min(180px, 100%); }
  .collection-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .collection-game-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .collection-game-body { padding: 12px; }
}