/* Встраиваемый 3D-образец кожи (leather3d.js) */
.l3d {
  --l3d-patina: #6cc4b6;
  --l3d-cognac: #d98a4a;
  --l3d-ink: #f3e9dc;
  --l3d-mono: var(--mono, 'JetBrains Mono', ui-monospace, Consolas, monospace);
  position: relative;
  aspect-ratio: 4 / 3;
  width: 100%;
  border-radius: 18px;
  overflow: hidden;
  isolation: isolate;
  color: var(--l3d-ink);
  background:
    radial-gradient(120% 90% at 50% 38%, #2a1b12 0%, #1a110c 48%, #0f0b08 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 236, 214, .08), 0 24px 60px -30px rgba(15, 11, 8, .7);
  user-select: none;
  -webkit-user-select: none;
}
.l3d::after { /* тонкое виньетирование поверх сцены */
  content: '';
  position: absolute; inset: 0;
  pointer-events: none;
  background: radial-gradient(130% 100% at 50% 45%, transparent 55%, rgba(8, 5, 3, .45) 100%);
  z-index: 1;
}
.l3d-stage {
  position: absolute; inset: 0;
  cursor: grab;
  outline: none;
  background-size: cover;
  background-position: center;
}
.l3d-stage:active { cursor: grabbing; }
.l3d-stage:focus-visible { box-shadow: inset 0 0 0 2px var(--l3d-patina), inset 0 0 24px -6px rgba(108, 196, 182, .5); border-radius: 18px; }
.l3d-canvas { display: block; width: 100%; height: 100%; opacity: 0; transition: opacity .6s cubic-bezier(.2, .8, .2, 1); }
.l3d.is-ready .l3d-canvas { opacity: 1; }

/* HUD */
.l3d-hud { position: absolute; inset: 0; z-index: 2; pointer-events: none; padding: 14px; display: flex; flex-direction: column; justify-content: space-between; }
.l3d-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.l3d-chip {
  display: inline-flex; align-items: center; gap: 7px;
  font: 500 10.5px/1 var(--l3d-mono);
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--l3d-ink);
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(23, 17, 13, .55);
  border: 1px solid rgba(255, 236, 214, .14);
}
.l3d-chip--kind i { width: 6px; height: 6px; border-radius: 50%; background: var(--l3d-patina); box-shadow: 0 0 8px var(--l3d-patina); }
.l3d-hint {
  margin: 0; align-self: flex-start;
  font: 500 10.5px/1 var(--l3d-mono); letter-spacing: .12em; text-transform: uppercase;
  color: rgba(243, 233, 220, .62);
  transition: opacity .4s ease;
  position: absolute; left: 14px; bottom: 18px;
}
.l3d-hint::before { content: '↔'; margin-right: 8px; color: var(--l3d-cognac); letter-spacing: 0; }
.l3d.is-touched .l3d-hint { opacity: 0; }
.l3d-toggle {
  position: absolute; right: 14px; bottom: 14px;
  display: inline-flex; padding: 3px; gap: 2px;
  border-radius: 999px;
  background: rgba(23, 17, 13, .6);
  border: 1px solid rgba(255, 236, 214, .14);
  pointer-events: auto;
}
.l3d-toggle button {
  appearance: none; border: 0; cursor: pointer;
  font: 500 10.5px/1 var(--l3d-mono); letter-spacing: .12em; text-transform: uppercase;
  color: rgba(243, 233, 220, .7);
  background: transparent;
  padding: 8px 12px; min-height: 30px;
  border-radius: 999px;
  transition: background-color .2s ease, color .2s ease;
}
.l3d-toggle button:hover { color: var(--l3d-ink); }
.l3d-toggle button[aria-pressed="true"] { background: var(--l3d-cognac); color: #1f1610; }
.l3d-toggle button:focus-visible { outline: 2px solid var(--l3d-patina); outline-offset: 2px; }

/* Загрузка: мерцающий скелетон */
.l3d-load {
  position: absolute; inset: 0; z-index: 1;
  display: grid; place-items: end center; padding-bottom: 22%;
  pointer-events: none;
  background:
    radial-gradient(46% 9% at 50% 66%, rgba(0, 0, 0, .45), transparent 70%),
    radial-gradient(42% 22% at 50% 52%, rgba(217, 138, 74, .1), transparent 70%);
  transition: opacity .5s ease;
}
.l3d-load::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(100deg, transparent 30%, rgba(255, 236, 214, .07) 50%, transparent 70%);
  background-size: 250% 100%;
  animation: l3d-shimmer 1.6s linear infinite;
}
.l3d-load span { position: relative; font: 500 10.5px/1 var(--l3d-mono); letter-spacing: .12em; text-transform: uppercase; color: rgba(243, 233, 220, .55); }
.l3d.is-ready .l3d-load, .l3d.is-fallback .l3d-load { opacity: 0; }
.l3d--thumb .l3d-load { display: none; }
@keyframes l3d-shimmer { from { background-position: 125% 0; } to { background-position: -125% 0; } }

/* Запасной вариант без WebGL */
.l3d.is-fallback .l3d-stage { cursor: default; }
.l3d.is-fallback .l3d-hint, .l3d.is-fallback .l3d-toggle { display: none; }
.l3d-note {
  position: absolute; left: 14px; right: 14px; bottom: 14px; z-index: 2; margin: 0;
  font: 500 10.5px/1.4 var(--l3d-mono); letter-spacing: .08em; text-transform: uppercase;
  color: var(--l3d-ink);
  padding: 8px 12px; border-radius: 12px;
  background: rgba(23, 17, 13, .7);
  border: 1px solid rgba(255, 236, 214, .14);
}
.l3d-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; margin: -1px; }

/* Миниатюра для карточек */
.l3d--thumb { border-radius: inherit; box-shadow: none; }
.l3d--thumb .l3d-stage { cursor: default; }
.l3d--thumb .l3d-hud { padding: 10px; }
.l3d--thumb .l3d-chip { white-space: nowrap; padding: 6px 9px; }

@media (max-width: 520px) {
  .l3d-hud { padding: 10px; }
  .l3d-hint { left: 10px; top: 48px; bottom: auto; }
  .l3d-toggle { right: 10px; bottom: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  .l3d-load::before { animation: none; }
  .l3d-canvas, .l3d-hint { transition: none; }
}