/* ═══════════════════════════════════════════════
   HYC Shop — 3D Category Carousel
   Adapted from Carrusel 3D design (Claude Design)
   Scoped under .c3d-section
   ═══════════════════════════════════════════════ */

/* ── Section wrapper ── */
.c3d-section {
  position: relative;
  width: 100%;
  height: 100svh;
  min-height: 680px;
  overflow: hidden;
  background: #070a0f;
  display: flex;
  flex-direction: column;
  align-items: center;
  --c3d-accent: #7c5cff;
  --c3d-cy: #26e0ff;
  --c3d-ink: #eef3f6;
  --c3d-muted: rgba(238,243,246,.58);
  --c3d-faint: rgba(238,243,246,.34);
  --c3d-line: rgba(255,255,255,.10);
  --c3d-glass: rgba(255,255,255,.045);
  --c3d-card-w: 280px;
  --c3d-card-h: 340px;
  --c3d-radius: 480px;
}

/* ── Ambient background ── */
.c3d-ambient {
  position: absolute;
  inset: 0;
  background: #04070f center/cover no-repeat;
  z-index: 0;
}
.c3d-ambient::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4,7,15,.85) 0%, rgba(4,7,15,.30) 20%, rgba(4,7,15,.20) 52%, rgba(4,7,15,.72) 88%, rgba(4,7,15,.95) 100%),
    radial-gradient(ellipse 72% 64% at 50% 46%, transparent 42%, rgba(4,7,15,.55) 100%);
}
.c3d-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--c3d-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--c3d-line) 1px, transparent 1px);
  background-size: 66px 66px;
  -webkit-mask-image: radial-gradient(ellipse 75% 70% at 50% 42%, #000 25%, transparent 76%);
  mask-image: radial-gradient(ellipse 75% 70% at 50% 42%, #000 25%, transparent 76%);
  opacity: .14;
  z-index: 1;
}

/* ── Heading ── */
.c3d-head {
  position: relative;
  z-index: 30;
  text-align: center;
  padding-top: 2.5rem;
  margin-bottom: .5rem;
}
.c3d-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'Space Grotesk', 'Oxanium', var(--font-display, sans-serif);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c3d-accent);
  margin-bottom: 8px;
}
.c3d-eyebrow::before,
.c3d-eyebrow::after {
  content: "";
  width: 26px;
  height: 1.5px;
  background: var(--c3d-accent);
  opacity: .6;
}
.c3d-head h2 {
  font-family: 'Space Grotesk', 'Oxanium', var(--font-display, sans-serif);
  font-weight: 600;
  font-size: clamp(1.4rem, 3vw, 2rem);
  letter-spacing: -.02em;
  color: var(--c3d-ink);
  margin: 0;
}

/* ── 3-D viewport ── */
.c3d-viewport {
  position: relative;
  z-index: 20;
  width: var(--c3d-card-w);
  height: var(--c3d-card-h);
  perspective: 1400px;
  margin-top: 1.5rem;
}
.c3d-ring {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  will-change: transform;
  cursor: grab;
}
.c3d-ring.grabbing { cursor: grabbing; }

/* ── Card ── */
.c3d-card {
  position: absolute;
  left: 0; top: 0;
  width: var(--c3d-card-w);
  height: var(--c3d-card-h);
  transform-style: preserve-3d;
  border-radius: 18px;
  overflow: hidden;
  background: #0c1016;
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: 0 40px 80px -36px rgba(0,0,0,.85);
  transition: border-color .35s, box-shadow .35s;
  text-decoration: none;
  color: var(--c3d-ink);
}
.c3d-card.is-front {
  border-color: color-mix(in oklab, var(--c3d-accent) 60%, transparent);
  box-shadow:
    0 40px 90px -32px rgba(0,0,0,.9),
    0 0 0 1px color-mix(in oklab, var(--c3d-accent) 45%, transparent),
    0 0 50px -8px color-mix(in oklab, var(--c3d-accent) 55%, transparent);
}

/* Card media */
.c3d-media {
  position: relative;
  height: calc(var(--c3d-card-h) * 0.70);
  overflow: hidden;
  background: #0a0d14;
}
.c3d-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .4s ease;
}
.c3d-card.is-front .c3d-media img {
  transform: scale(1.04);
}
.c3d-media-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0e1628, #060c1a);
}
.c3d-badge {
  position: absolute;
  top: 12px; left: 12px;
  z-index: 2;
  width: 30px; height: 30px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  background: rgba(10,8,18,.6);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.16);
  font-family: 'Space Grotesk', 'Oxanium', var(--font-display, sans-serif);
  font-weight: 700;
  font-size: 13px;
  color: #fff;
}

/* Card footer */
.c3d-foot {
  height: calc(var(--c3d-card-h) * 0.30);
  padding: 14px 18px 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: linear-gradient(180deg, #0c1016, #0a0d13);
}
.c3d-catname {
  font-family: 'Space Grotesk', 'Oxanium', var(--font-display, sans-serif);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -.01em;
  line-height: 1.15;
  color: var(--c3d-ink);
}
.c3d-catmeta {
  font-size: 13px;
  color: var(--c3d-faint);
  font-weight: 500;
}
.c3d-catmeta b {
  color: var(--c3d-accent);
  font-weight: 700;
}

/* ── Floor glow ── */
.c3d-floor {
  position: absolute;
  left: 50%;
  top: 72%;
  width: 600px;
  height: 110px;
  transform: translateX(-50%);
  z-index: 10;
  background: radial-gradient(ellipse 50% 50% at 50% 50%, color-mix(in oklab, var(--c3d-accent) 30%, transparent), transparent 70%);
  filter: blur(8px);
  opacity: .45;
  pointer-events: none;
}

/* ── Caption ── */
.c3d-caption {
  position: absolute;
  left: 0; right: 0;
  bottom: 86px;
  text-align: center;
  z-index: 30;
  pointer-events: none;
}
.c3d-cap-num {
  font-family: 'Space Grotesk', 'Oxanium', var(--font-display, sans-serif);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .2em;
  color: var(--c3d-accent);
  margin-bottom: 6px;
}
.c3d-cap-name {
  font-family: 'Space Grotesk', 'Oxanium', var(--font-display, sans-serif);
  font-weight: 600;
  font-size: clamp(1.1rem, 2.5vw, 1.7rem);
  letter-spacing: -.02em;
  color: var(--c3d-ink);
  transition: opacity .25s;
}
.c3d-cap-desc {
  margin-top: 5px;
  font-size: 14px;
  color: var(--c3d-muted);
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.55;
  transition: opacity .25s;
}
.c3d-cap-cta {
  pointer-events: auto;
  margin-top: 12px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c3d-ink);
  background: var(--c3d-glass);
  border: 1px solid var(--c3d-line);
  border-radius: 999px;
  padding: 9px 18px;
  text-decoration: none;
  transition: background .2s, border-color .2s;
}
.c3d-cap-cta:hover {
  background: rgba(255,255,255,.10);
  border-color: rgba(255,255,255,.28);
  color: var(--c3d-ink);
}
.c3d-cap-cta svg {
  width: 14px; height: 14px;
  stroke: var(--c3d-accent);
  stroke-width: 2.2;
  fill: none;
}

/* ── Controls ── */
.c3d-controls {
  position: absolute;
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%);
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 18px;
}
.c3d-arrow {
  width: 46px; height: 46px;
  border-radius: 50%;
  border: 1px solid var(--c3d-line);
  background: var(--c3d-glass);
  color: var(--c3d-ink);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background .2s, border-color .2s, transform .15s;
}
.c3d-arrow:hover {
  background: rgba(255,255,255,.10);
  border-color: rgba(255,255,255,.28);
}
.c3d-arrow:active { transform: scale(.92); }
.c3d-arrow svg {
  width: 20px; height: 20px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}
.c3d-dots {
  display: flex;
  align-items: center;
  gap: 8px;
}
.c3d-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: rgba(255,255,255,.22);
  border: none;
  cursor: pointer;
  transition: transform .25s, background .25s;
  padding: 0;
}
.c3d-dot.on {
  background: var(--c3d-accent);
  transform: scale(1.5);
}

/* ── Drag hint ── */
.c3d-hint {
  position: absolute;
  left: clamp(20px, 4vw, 64px);
  bottom: 30px;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  color: var(--c3d-faint);
  letter-spacing: .05em;
  pointer-events: none;
}
.c3d-hint-dots {
  display: flex;
  gap: 4px;
}
.c3d-hint-dots span {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--c3d-faint);
  animation: c3dPulse 1.4s ease-in-out infinite;
}
.c3d-hint-dots span:nth-child(2) { animation-delay: .2s; }
.c3d-hint-dots span:nth-child(3) { animation-delay: .4s; }
@keyframes c3dPulse { 0%,100% { opacity:.3 } 50% { opacity:1 } }
@media (prefers-reduced-motion:reduce) { .c3d-hint-dots span { animation:none; } }

/* ── Responsive ── */
@media (max-width: 900px) {
  .c3d-section {
    --c3d-card-w: 230px;
    --c3d-card-h: 290px;
    --c3d-radius: 380px;
    height: 580px;
  }
}
@media (max-width: 600px) {
  .c3d-section {
    --c3d-card-w: 200px;
    --c3d-card-h: 260px;
    --c3d-radius: 300px;
    height: 520px;
  }
  .c3d-head { padding-top: 1.5rem; }
  .c3d-hint { display: none; }
  .c3d-cap-desc { display: none; }
}