/* =============================================================
   COLLECTION PAGE — shared between comics.html, concept-art.html
   ============================================================= */

html, body {
  overflow-x: hidden;
  overflow-y: auto;
  min-height: 100%;
  background: #080808;
}

.nav {
  background: rgba(8,8,8,0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav .nav-brand { color: #fff; text-decoration: none; }

/* ── Page header ───────────────────────────────────────────── */
.col-header {
  padding: calc(var(--nav-h) + 48px) 40px 40px;
  max-width: 1400px;
  margin: 0 auto;
}

.col-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.col-breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.col-breadcrumb a:hover { color: var(--text); }
.col-breadcrumb-sep { opacity: 0.35; }

.col-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 7vw, 88px);
  font-weight: 500;
  line-height: 1;
  color: var(--text);
  margin-bottom: 10px;
}

.col-sub {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

/* ── Grid ──────────────────────────────────────────────────── */
.col-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(340px, 100%), 1fr));
  gap: 2px;
  padding-bottom: 80px;
}

/* ── Card ──────────────────────────────────────────────────── */
.col-item {
  display: block;
  position: relative;
  overflow: hidden;
  background: #111;
  text-decoration: none;
  aspect-ratio: 3 / 4;
}

.col-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s var(--ease-out), filter 0.4s;
  filter: brightness(0.88);
}

.col-item:hover img,
.col-item:focus img {
  transform: scale(1.05);
  filter: brightness(1);
}

.col-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top,
    rgba(0,0,0,0.88) 0%,
    rgba(0,0,0,0.3) 40%,
    rgba(0,0,0,0) 65%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px 24px 26px;
  opacity: 0;
  transition: opacity 0.3s;
}

.col-item:hover .col-item-overlay,
.col-item:focus .col-item-overlay {
  opacity: 1;
}

/* Always visible on touch screens */
@media (hover: none) {
  .col-item-overlay { opacity: 1; }
}

.col-item-num {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: 5px;
}
.col-item-name {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.5vw, 36px);
  font-weight: 500;
  color: #fff;
  line-height: 1.05;
}
.col-item-meta {
  font-size: 12px;
  color: rgba(255,255,255,0.45);
  margin-top: 5px;
}
.col-item-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  padding: 7px 14px;
  backdrop-filter: blur(8px);
  align-self: flex-start;
  transition: background 0.2s;
}
.col-item:hover .col-item-cta { background: rgba(255,255,255,0.18); }

/* ── Entrance animation ────────────────────────────────────── */
.col-header {
  opacity: 0;
  transform: translateY(14px);
  animation: fadeUp 0.6s 0.1s var(--ease-out) forwards;
}
.col-item {
  opacity: 0;
  transform: translateY(16px);
  animation: fadeUp 0.6s var(--ease-out) forwards;
}
.col-item:nth-child(1) { animation-delay: 0.2s; }
.col-item:nth-child(2) { animation-delay: 0.3s; }
.col-item:nth-child(3) { animation-delay: 0.4s; }
.col-item:nth-child(4) { animation-delay: 0.5s; }
.col-item:nth-child(n+5) { animation-delay: 0.55s; }

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 600px) {
  .col-header { padding: calc(var(--nav-h) + 28px) 20px 24px; }
  .col-grid { grid-template-columns: 1fr 1fr; gap: 1px; }
  .col-item-overlay { opacity: 1; padding: 16px 14px 14px; }
  .col-item-name { font-size: clamp(16px, 4.5vw, 22px); }
  .col-item-cta { display: none; }
}

@media (max-width: 380px) {
  .col-grid { grid-template-columns: 1fr; }
}