/* ================================================================
   LAYOUT  —  tapete de tirada, modo estudio
   ================================================================ */

/* ── Modo tirada: escena principal ─────────────────────────────── */
.reading-stage {
  position: absolute;
  inset: 0;
  overflow: hidden;
  cursor: grab;
  background: radial-gradient(ellipse at 50% 40%, #300c23 0%, #20091b 65%, #16061a 100%);
}
.reading-stage.panning { cursor: grabbing; }

/* ── Zona del mazo / mano ───────────────────────────────────────── */
.deck-area {
  position: absolute;
  inset: 0;
  pointer-events: none; /* El stage recibe los eventos de pan */
  transition: opacity 0.4s ease;
}

/* Las cartas sí son clicables */
.deck-area .deck-card { pointer-events: auto; }

.deck-area.big-deck {
  display: flex;
  align-items: center;
  justify-content: center;
}

.deck-area.hand-scroll {
  top: auto;
  bottom: 0;
  left: 0;
  right: 0;
  height: 155px;
  overflow-x: auto;
  overflow-y: hidden;
  pointer-events: auto;
  z-index: 20;
}

.hand-inner {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  padding: 0 80px;
  height: 100%;
  width: max-content;
}

/* Ocultar mano */
.deck-area.hand-hidden {
  opacity: 0;
  pointer-events: none !important;
}

/* ── Zona de tirada ─────────────────────────────────────────────── */
.spread-area {
  position: absolute;
  top: 50%;
  left: 50%;
  /* Pan se controla con --pan-x y --pan-y desde JS */
  transform: translate(calc(-50% + var(--pan-x, 0px)), calc(-50% + var(--pan-y, 0px))) scale(var(--zoom, 1));
  z-index: 10;
  pointer-events: none;
  /* Sin transition durante el pan para que sea suave */
  will-change: transform;
}
.spread-area:has(.spread-slot) { pointer-events: auto; }

/* ── Slots genéricos ────────────────────────────────────────────── */
.spread-slot {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.spread-slot-placeholder {
  width: 80px;
  height: 138px;
  border: 1px dashed var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(14, 12, 17, 0.6);
  transition: border-color 0.2s, background 0.2s;
}
.spread-slot:hover .spread-slot-placeholder {
  border-color: var(--accent-hi);
  background: rgba(20, 18, 26, 0.8);
}
.spread-slot.filled .spread-slot-placeholder {
  border-style: solid;
  border-color: var(--accent);
  cursor: pointer;
}

.spread-slot-num {
  font-size: 0.75rem;
  color: var(--ink-dim);
}

.spread-slot-label {
  display: none;
}

.spread-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.spread-card-img.reversed {
  transform: rotate(180deg);
  filter: brightness(0.85);
}

/* Carta que cruza (p2 de la Cruz Celta): rota el slot entero para que el hit area coincida */
.spread-slot.crossing {
  z-index: 2;
  transform: rotate(-90deg);
}

/* ── Modo estudio ───────────────────────────────────────────────── */
.study-layout {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  padding: 2.5rem 1.5rem 0 1.5rem;
  gap: 0;
}

/* Barra de filtros: categorías + subcategorías */
.study-filters {
  flex-shrink: 0;
  border-bottom: 1px solid var(--accent);
  margin-bottom: 0;
}

.filter-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  padding-bottom: 0.5rem;
}

.filter-subcategories {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  padding: 0.4rem 0 0.5rem;
  border-top: 1px solid rgba(94,88,67,0.35);
  min-height: 2rem;
}
.filter-subcategories:empty { display: none; }

.filter-btn {
  font-family: inherit;
  font-size: 0.90rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  background: none;
  border: 1px solid transparent;
  padding: 0.25rem 0.75rem;
}
.filter-btn:hover  { color: var(--ink); border-color: var(--accent); }
.filter-btn.active { color: var(--ink); border-color: var(--accent-hi); background: var(--bg-mid); }
.filter-btn.cat-active { color: var(--ink); border-color: var(--accent); }

/* Cuerpo: descripción izquierda + grid derecha */
.study-body {
  flex: 1;
  display: flex;
  overflow: hidden;
  gap: 0;
}

.study-description {
  width: 250px;
  flex-shrink: 0;
  padding: 1.5rem 1.25rem 1.5rem 0;
  border-right: 1px solid var(--accent);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.study-desc-title {
  font-size: 1rem;
  letter-spacing: 0.08em;
  font-weight: normal;
  line-height: 1.3;
  color: var(--ink);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 0.5rem;
}

.study-desc-body {
  font-size: 0.90rem;
  line-height: 1.5;
  color: var(--ink);
}

.study-desc-count {
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-top: auto;
}

/* Grid de cartas */
.study-grid {
  flex: 1;
  overflow-y: auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(85px, 1fr));
  gap: 0.75rem;
  align-content: start;
  padding: 1rem 0 1rem 1.25rem;
}

.study-card {
  background: none;
  border: 1px solid transparent;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  cursor: pointer;
  transition: border-color 0.15s;
}
.study-card:hover { border-color: var(--accent); }
.study-card:hover .study-card-img { filter: brightness(1.1); }

.study-card-img {
  width: 100%;
  display: block;
  transition: filter 0.15s;
}

.study-card-name {
  font-size: 0.52rem;
  letter-spacing: 0.05em;
  color: var(--ink-muted);
  text-align: center;
  line-height: 1.3;
}

.study-empty {
  grid-column: 1 / -1;
  color: var(--ink-dim);
  font-style: italic;
  text-align: center;
  padding: 2rem;
}