/* ==========================================================================
   File: /styles/pages/homepage-shelf.css
   Description: Premium 3D supermarket-shelf hero for the AYT Mart homepage.
   Depends on the --ayt-* tokens declared inline in index.html (which in turn
   fall back to the shared /styles/themes/variables.css tokens), so this file
   never needs its own color duplication and stays in sync automatically.
   ========================================================================== */

.hs-section {
  position: relative;
  overflow: hidden;
  background: #0a120f;
  color: #F3EFE2;
  padding: clamp(28px, 5vw, 56px) 0 clamp(20px, 4vw, 40px);
}

.hs-bg { position: absolute; inset: 0; z-index: 0; }
.hs-bg-img { width: 100%; height: 100%; object-fit: cover; opacity: .9; }
.hs-bg-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(7,15,12,.55) 0%, rgba(9,17,14,.35) 35%, rgba(6,12,10,.75) 100%);
}
.hs-bg-vignette {
  position: absolute; inset: 0;
  background: radial-gradient(120% 90% at 50% 38%, transparent 40%, rgba(4,8,7,.75) 100%);
}

.hs-content { position: relative; z-index: 2; }

/* ---------- Heading ---------- */
.hs-heading { text-align: center; max-width: 720px; margin: 0 auto clamp(20px, 4vw, 36px); }
.hs-eyebrow {
  font-family: var(--ayt-font-num); font-size: 12px; font-weight: 600; letter-spacing: .18em;
  text-transform: uppercase; color: var(--ayt-gold-light); display: inline-block; margin-bottom: 10px;
}
.hs-title {
  font-family: var(--ayt-font-display); font-size: clamp(28px, 4.6vw, 48px); line-height: 1.2;
  font-weight: 700; color: #FBF7EF; margin: 0 0 10px;
}
.hs-title span { color: var(--ayt-gold-light); }
.hs-subtitle { font-size: clamp(14px, 1.6vw, 17px); color: #E3DCC6; opacity: .9; margin: 0 0 20px; }
.hs-cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---------- Stage / arrows ---------- */
.hs-stage-wrap {
  position: relative;
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 56px;
}
.hs-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(251,247,239,.92); color: var(--ayt-primary-dark);
  border: none; display: flex; align-items: center; justify-content: center;
  font-size: 22px; line-height: 1; cursor: pointer; z-index: 30;
  box-shadow: 0 8px 22px rgba(0,0,0,.35);
  transition: transform var(--ayt-fast), background var(--ayt-fast), box-shadow var(--ayt-fast);
}
.hs-arrow:hover { background: var(--ayt-gold-light); transform: translateY(-50%) scale(1.08); }
.hs-arrow:active { transform: translateY(-50%) scale(.96); }
.hs-arrow[disabled] { opacity: .35; cursor: default; pointer-events: none; }
.hs-prev { left: 0; }
.hs-next { right: 0; }

.hs-stage {
  position: relative;
  height: 460px;
  perspective: 1700px;
  perspective-origin: 50% 42%;
  touch-action: pan-y;
  outline: none;

  --hs-step-x: 258px;
  --hs-step-z: -160px;
  --hs-scale-step: .16;
  --hs-rot-step: 18deg;
  --hs-shelf-w: 208px;
}

/* ---------- Individual shelf ---------- */
.hs-shelf {
  position: absolute;
  top: 50%; left: 50%;
  width: var(--hs-shelf-w);
  text-decoration: none;
  color: inherit;
  transform-style: preserve-3d;
  transition: transform .6s cubic-bezier(.22,.61,.36,1), opacity .5s ease, filter .5s ease;
  will-change: transform, opacity;
}
.hs-shelf:focus-visible .hs-shelf-inner { outline: 2px solid var(--ayt-gold-light); outline-offset: 3px; }

.hs-shelf-inner {
  position: relative;
  border-radius: 14px;
  background: linear-gradient(165deg, #123329 0%, #0c241c 60%, #081a14 100%);
  border: 1px solid rgba(231, 205, 115, .16);
  box-shadow: 0 18px 34px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.04);
  padding: 14px 12px 12px;
  transform: translateZ(0) scale(1);
  transition: transform .45s cubic-bezier(.22,.61,.36,1), box-shadow .45s ease, filter .3s ease;
  transform-style: preserve-3d;
}

/* hover = "shelf comes toward the viewer" (independent of carousel position transform) */
.hs-shelf.is-nav-locked { pointer-events: none; }
.hs-shelf:hover .hs-shelf-inner,
.hs-shelf:focus-visible .hs-shelf-inner {
  transform: translateZ(46px) scale(1.045);
  box-shadow: 0 26px 46px rgba(0,0,0,.55), 0 0 0 1px rgba(231,205,115,.35), 0 0 34px rgba(231,205,115,.18);
}

.hs-shelf.is-active .hs-shelf-inner {
  background: linear-gradient(165deg, #17402f 0%, #0e2b21 55%, #081a14 100%);
  border-color: rgba(231, 205, 115, .55);
  box-shadow: 0 30px 60px rgba(0,0,0,.5), 0 0 0 1px rgba(231,205,115,.4), 0 0 46px rgba(231,205,115,.28);
}
.hs-shelf.is-active:hover .hs-shelf-inner,
.hs-shelf.is-active:focus-visible .hs-shelf-inner {
  transform: translateZ(30px) scale(1.02);
}

.hs-shelf-glow {
  position: absolute; inset: -18px -18px auto -18px; height: 60px;
  background: radial-gradient(60% 100% at 50% 0%, rgba(231,205,115,.35), transparent 70%);
  opacity: 0; transition: opacity .4s ease; pointer-events: none;
}
.hs-shelf.is-active .hs-shelf-glow { opacity: 1; }

.hs-shelf-header { text-align: center; margin-bottom: 10px; }
.hs-shelf-icon { font-size: 22px; display: block; margin-bottom: 4px; filter: drop-shadow(0 2px 4px rgba(0,0,0,.4)); }
.hs-shelf-title {
  font-family: var(--ayt-font-display); font-size: 14px; font-weight: 700;
  color: #FBF7EF; margin: 0; line-height: 1.3;
}
.hs-shelf.is-active .hs-shelf-title { font-size: 17px; color: var(--ayt-gold-light); }

.hs-shelf-rows {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 7px;
  margin-bottom: 10px;
}
.hs-shelf.is-active .hs-shelf-rows { gap: 9px; }
.hs-prod-tile {
  position: relative;
  aspect-ratio: 1;
  border-radius: 8px;
  background: #eee7d4;
  overflow: hidden;
  box-shadow: 0 5px 0 -1px rgba(58, 42, 26, .9), 0 6px 6px rgba(0,0,0,.35);
}
.hs-prod-tile img { width: 100%; height: 100%; object-fit: cover; display: block; }

.hs-shelf-empty {
  display: flex; align-items: center; justify-content: center; text-align: center;
  min-height: 96px; border: 1px dashed rgba(231,205,115,.3); border-radius: 10px;
  font-size: 12px; color: #C9C2AA; padding: 10px; margin-bottom: 10px;
}

.hs-shelf-cta {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  font-size: 12px; font-weight: 600; color: var(--ayt-primary-dark);
  background: var(--ayt-gold); border-radius: 999px; padding: 8px 10px;
  transition: background var(--ayt-fast), gap var(--ayt-fast);
}
.hs-shelf:hover .hs-shelf-cta { background: var(--ayt-gold-light); gap: 9px; }
.hs-shelf.is-active .hs-shelf-cta { font-size: 13px; padding: 10px 14px; }
.hs-cta-full { display: none; }
.hs-shelf.is-active .hs-cta-full { display: inline; }
.hs-shelf-cta svg { width: 14px; height: 14px; flex-shrink: 0; }

/* ---------- Skeleton (loading state before JS populates real shelves) ---------- */
.hs-skel {
  position: absolute; top: 50%; left: 50%;
  width: var(--hs-shelf-w); height: 340px;
  transform: translate(-50%, -50%);
  border-radius: 14px;
  background: linear-gradient(100deg, rgba(255,255,255,.03) 30%, rgba(255,255,255,.08) 50%, rgba(255,255,255,.03) 70%);
  background-size: 200% 100%;
  animation: hsShimmer 1.4s ease-in-out infinite;
  border: 1px solid rgba(231,205,115,.12);
}
.hs-skel:nth-child(1) { transform: translate(calc(-50% - 480px), -50%) scale(.72); opacity: .5; }
.hs-skel:nth-child(2) { transform: translate(calc(-50% - 250px), -50%) scale(.86); opacity: .75; }
.hs-skel:nth-child(3) { transform: translate(-50%, -50%) scale(1.1); }
.hs-skel:nth-child(4) { transform: translate(calc(-50% + 250px), -50%) scale(.86); opacity: .75; }
.hs-skel:nth-child(5) { transform: translate(calc(-50% + 480px), -50%) scale(.72); opacity: .5; }
@keyframes hsShimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .hs-stage { --hs-step-x: 196px; --hs-step-z: -140px; --hs-shelf-w: 176px; height: 400px; }
  .hs-stage-wrap { padding: 0 46px; }
}

@media (max-width: 760px) {
  .hs-stage-wrap { max-width: 100%; padding: 0 8px; overflow: hidden; }
  .hs-stage {
    --hs-step-x: 118px; --hs-step-z: -110px; --hs-rot-step: 24deg; --hs-shelf-w: 158px;
    height: 360px;
  }
  .hs-arrow { width: 38px; height: 38px; font-size: 18px; }
  .hs-prev { left: 2px; } .hs-next { right: 2px; }
  .hs-shelf-title { font-size: 12px; }
  .hs-shelf.is-active .hs-shelf-title { font-size: 15px; }
}

@media (max-width: 420px) {
  .hs-stage { --hs-step-x: 96px; --hs-shelf-w: 138px; height: 330px; }
}

@media (prefers-reduced-motion: reduce) {
  .hs-shelf, .hs-shelf-inner { transition-duration: .001ms !important; }
}

/* ---------- Features strip ---------- */
.hs-features {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--ayt-sp-4);
  max-width: 1240px;
  margin: 0 auto;
  padding: var(--ayt-sp-8) var(--ayt-sp-5) 0;
}
.hs-feature {
  display: flex; align-items: center; gap: 10px;
  background: var(--ayt-surface); border: 1px solid var(--ayt-border);
  border-radius: var(--ayt-radius-md); padding: 14px 14px;
  box-shadow: var(--ayt-shadow-sm);
}
.hs-feature-icon {
  width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: var(--ayt-surface-alt); color: var(--ayt-primary);
}
.hs-feature-icon svg { width: 20px; height: 20px; }
.hs-feature-text h4 { margin: 0 0 2px; font-size: 13px; font-weight: 700; color: var(--ayt-ink); }
.hs-feature-text p { margin: 0; font-size: 11.5px; color: var(--ayt-muted); line-height: 1.35; }

@media (max-width: 980px) {
  .hs-features { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 640px) {
  .hs-features { grid-template-columns: repeat(2, 1fr); }
}