/* ─────────────────────────────────────────────
   SHELF.CSS — Kit Anderson Network Component
   Reusable Netflix/Spotify-style scrolling shelf
   v1.1 · 2026
   ───────────────────────────────────────────── */

/* ── SHELF SECTION WRAPPER ── */
.shelf-section {
  padding: 4rem 0 0;
  border-top: 1px solid var(--gray, #3a3835);
}

/* ── SHELF HEADER ── */
.shelf-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 0 3rem 1.5rem;
  gap: 1rem;
}

.shelf-title {
  font-family: "abolition", sans-serif;
  font-size: 1.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--white, #f0ebe0);
  text-align: left;
}

.shelf-link {
  font-family: 'Space Mono', monospace;
  font-size: 0.55rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--light-gray, #7a7570);
  text-decoration: none;
  transition: color 0.2s;
  white-space: nowrap;
  text-align: left;
  flex-shrink: 0;
}

.shelf-link:hover { color: var(--white, #f0ebe0); }

/* ── TRACK WRAPPER ── */
.shelf-track-wrap {
  position: relative;
}

/* Right fade edge */
.shelf-track-wrap::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 2.5rem;
  width: 6rem;
  background: linear-gradient(to right, transparent, var(--black, #0a0a0a));
  pointer-events: none;
  z-index: 2;
  transition: opacity 0.3s;
}

/* Left fade edge — only visible when scrolled */
.shelf-track-wrap::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 2.5rem;
  width: 6rem;
  background: linear-gradient(to left, transparent, var(--black, #0a0a0a));
  pointer-events: none;
  z-index: 2;
  opacity: 0;
  transition: opacity 0.3s;
}

.shelf-track-wrap.scrolled-left::before { opacity: 1; }
.shelf-track-wrap.scrolled-right::after { opacity: 0; }

/* ── SCROLL TRACK ── */
.shelf-track {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  overflow-x: auto;
  overflow-y: visible;
  padding: 6px 3rem 2.5rem;
  margin: -6px 0 0;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
  scroll-behavior: smooth;
}

.shelf-track::-webkit-scrollbar { display: none; }

/* ── ARROW BUTTONS (injected by shelf.js) ── */
.shelf-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(calc(-50% - 1.25rem));
  z-index: 10;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--gray, #3a3835);
  background: rgba(10, 10, 10, 0.85);
  color: var(--white, #f0ebe0);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.2s, border-color 0.2s, background 0.2s;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.shelf-arrow svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

.shelf-arrow-prev { left: 0.75rem; }
.shelf-arrow-next { right: 0.75rem; }

.shelf-track-wrap:hover .shelf-arrow { opacity: 1; }

.shelf-arrow:hover {
  border-color: var(--white, #f0ebe0);
  background: rgba(240, 235, 224, 0.1);
}

.shelf-arrow:disabled,
.shelf-arrow[aria-disabled="true"] {
  opacity: 0 !important;
  pointer-events: none;
}

/* ── SHELF CARD — BASE ── */
.shelf-card {
  flex: 0 0 auto;
  scroll-snap-align: start;
  text-decoration: none;
  color: inherit;
  display: block;
  position: relative;
  transition: transform 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.shelf-card:hover { transform: translateY(-4px); }
.shelf-card:active { transform: translateY(-2px) scale(0.98); }

/* ── COVER WRAPPER ── */
.shelf-cover {
  position: relative;
  overflow: hidden;
  display: block;
  background: transparent;
}

/* Outline overlay — transparent until type-specific rule fires */
.shelf-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid transparent;
  transition: border-color 0.22s ease;
  pointer-events: none;
  z-index: 3;
}

/* ── TYPE-SPECIFIC HOVER OUTLINES ── */
.shelf-card-book:hover  .shelf-cover::after { border-color: var(--gold,         #b8962e); }
.shelf-card-art:hover   .shelf-cover::after { border-color: var(--studio-steel, #6a8aaa); }
.shelf-card-video:hover .shelf-cover::after { border-color: var(--ash,          #7a7570); }

/* Movies — scoped to #movies section so poster cards get Kit Red */
#movies .shelf-card:hover .shelf-cover::after { border-color: var(--red, #c8341a); }

/* ── COVER IMAGE — native aspect ratio, top-left aligned, no background ── */
.shelf-cover img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  object-position: top left;
  background: transparent;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.shelf-card:hover .shelf-cover img { transform: scale(1.04); }

/* ── CARD SIZES ── */
.shelf-card-book  { width: 130px; }
.shelf-card-art   { width: 160px; }
.shelf-card-video { width: 240px; }

.shelf-card-video .shelf-cover img {
  aspect-ratio: 16 / 9;
  height: auto;
  width: 100%;
}

/* ── DESCRIPTION OVERLAY ── */
.shelf-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: 0.75rem;
  background: linear-gradient(to top, rgba(10,10,10,0.94) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
  z-index: 2;
}

.shelf-card:hover .shelf-overlay { opacity: 1; }

.shelf-overlay-text {
  font-family: 'Playfair Display', Georgia, serif;
  font-style: italic;
  font-size: 0.62rem;
  line-height: 1.5;
  color: var(--cream, #e8e0cc);
  text-align: left;
}

/* ── CARD BODY ── */
.shelf-card-body {
  padding: 0.5rem 0 0;
  background: transparent;
}

.shelf-card-cat {
  font-family: 'Space Mono', monospace;
  font-size: 0.44rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 0.2rem;
  text-align: left;
}

/* ── CATEGORY LABEL COLORS ── */
.shelf-cat-books  { color: var(--gold,         #b8962e); }
.shelf-cat-movies { color: var(--red,          #c8341a); }
.shelf-cat-art    { color: var(--studio-steel, #6a8aaa); }
.shelf-cat-video  { color: var(--ash,          #7a7570); }
.shelf-cat-dev    { color: var(--crt-green,    #39d353); }

.shelf-card-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  font-size: 0.75rem;
  line-height: 1.3;
  color: var(--white, #f0ebe0);
  margin-bottom: 0.15rem;
  text-align: left;
}

.shelf-card-meta {
  font-family: 'Space Mono', monospace;
  font-size: 0.46rem;
  color: var(--light-gray, #7a7570);
  letter-spacing: 0.1em;
  text-align: left;
}

/* ── VIDEO PLAY BUTTON ── */
.shelf-play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s;
  background: rgba(10,10,10,0.3);
  z-index: 2;
}

.shelf-card-video:hover .shelf-play { opacity: 1; }

.shelf-play-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--white, #f0ebe0);
  background: rgba(10,10,10,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

.shelf-play-btn::after {
  content: '';
  border-style: solid;
  border-width: 6px 0 6px 11px;
  border-color: transparent transparent transparent var(--white, #f0ebe0);
  margin-left: 3px;
}

/* ── SHELF KICKER ── */
.shelf-kicker {
  border-top: 1px solid var(--gray, #3a3835);
  margin-top: 0.5rem;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .shelf-section { padding: 2.5rem 0 0; }
  .shelf-header { padding: 0 1.5rem 1.2rem; }
  .shelf-track { padding: 6px 1.5rem 2rem; margin: -6px 0 0; }
  .shelf-arrow { display: none; }
  .shelf-track-wrap::before,
  .shelf-track-wrap::after { width: 3rem; }
  .shelf-card-book  { width: 110px; }
  .shelf-card-art   { width: 140px; }
  .shelf-card-video { width: 200px; }
}