/* Live trainings — playable decks + session recordings */

.deck {
  --deck-pad: 0.7rem;
  background:
    radial-gradient(120% 80% at 50% -10%, rgba(207, 168, 94, 0.12), transparent 55%),
    linear-gradient(165deg, rgba(25, 29, 37, 0.96), rgba(12, 14, 18, 0.98));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-deep);
  overflow: hidden;
}

.deck__stage {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #07080b;
}

.deck__stage img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #07080b;
  user-select: none;
  -webkit-user-drag: none;
}

.deck__nav {
  position: absolute;
  top: 50%;
  translate: 0 -50%;
  z-index: 2;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(246, 240, 227, 0.18);
  border-radius: 999px;
  background: rgba(12, 14, 18, 0.62);
  color: var(--cream);
  backdrop-filter: blur(10px);
  display: grid;
  place-items: center;
  transition: background 0.2s var(--ease-out), border-color 0.2s, transform 0.2s var(--ease-out);
}

.deck__nav:hover,
.deck__nav:focus-visible {
  background: rgba(207, 168, 94, 0.28);
  border-color: var(--gold);
}

.deck__nav:disabled {
  opacity: 0.28;
  cursor: default;
}

.deck__nav--prev { left: var(--deck-pad); }
.deck__nav--next { right: var(--deck-pad); }

.deck__chrome {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 0.9rem;
  padding: 0.85rem 1rem 1rem;
  border-top: 1px solid var(--glass-border);
}

.deck__count {
  font-variant-numeric: tabular-nums;
  color: var(--cream-dim);
  min-width: 7ch;
}

.deck__progress {
  flex: 1 1 140px;
  height: 4px;
  border-radius: 99px;
  background: rgba(246, 240, 227, 0.1);
  overflow: hidden;
}

.deck__progress > span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--gold-deep), var(--gold-bright));
  transition: width 0.25s var(--ease-out);
}

.deck__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-inline-start: auto;
}

.deck__actions button {
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  background: transparent;
  color: var(--cream);
  padding: 0.4rem 0.85rem;
  font-size: 0.85rem;
}

.deck__actions button[aria-pressed="true"],
.deck__actions button:hover,
.deck__actions button:focus-visible {
  border-color: var(--gold);
  color: var(--gold-bright);
}

.deck__hint {
  width: 100%;
  font-size: 0.78rem;
  color: var(--cream-faint);
}

.deck__film {
  display: flex;
  gap: 0.45rem;
  overflow-x: auto;
  padding: 0 1rem 1rem;
  scrollbar-width: thin;
}

.deck__thumb {
  flex: none;
  min-width: 2.1rem;
  height: 2.1rem;
  padding: 0 0.35rem;
  border: 1px solid transparent;
  border-radius: 8px;
  background: rgba(246, 240, 227, 0.06);
  color: var(--cream-dim);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  opacity: 0.7;
}

.deck__thumb.is-current,
.deck__thumb:hover,
.deck__thumb:focus-visible {
  opacity: 1;
  border-color: var(--gold);
}

.deck:fullscreen,
.deck:-webkit-full-screen {
  border-radius: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.deck:fullscreen .deck__stage,
.deck:-webkit-full-screen .deck__stage {
  flex: 1;
  aspect-ratio: auto;
}

.training-video-slot {
  min-height: 220px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 2rem 1.4rem;
  border: 1px dashed rgba(207, 168, 94, 0.35);
  border-radius: var(--radius-md);
  color: var(--cream-dim);
  background: rgba(207, 168, 94, 0.04);
}

.training-card.is-active {
  border-color: var(--gold);
  box-shadow: 0 0 0 1px rgba(207, 168, 94, 0.35);
}

@media (prefers-reduced-motion: reduce) {
  .deck__progress > span,
  .deck__nav { transition: none; }
}