/* =========================================================
   Busca tu foto · frontend
   Reusa CSS vars del child theme (--color-arena, etc.) con fallback.
   ========================================================= */

.btf-index-hero {
  /* fondo plano para el index, sin foto · queda más limpio */
  background: var(--color-tinta, #182331);
}
.btf-index-hero .cat-hero__media {
  background: linear-gradient(135deg, #1F4865 0%, #182331 100%);
}

/* ---------- Grid de SESIONES (vista A) ---------- */
.btf-sesiones__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 1.5vw, 28px);
}
@media (max-width: 980px) { .btf-sesiones__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .btf-sesiones__grid { grid-template-columns: 1fr; } }

.btf-sesion-card {
  position: relative;
  display: block;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--color-tinta, #182331);
  text-decoration: none;
  color: var(--color-arena-soft, #FAF4E5);
}
.btf-sesion-card__media {
  position: absolute; inset: 0;
}
.btf-sesion-card__media img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 1400ms var(--ease-premium, cubic-bezier(.16,1,.3,1)),
              filter var(--dur-hover, 480ms) var(--ease-premium, cubic-bezier(.16,1,.3,1));
  filter: saturate(0.94);
}
.btf-sesion-card:hover .btf-sesion-card__media img {
  transform: scale(1.05);
  filter: saturate(1.05);
}
.btf-sesion-card__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(24,35,49,0.10) 0%, rgba(24,35,49,0.20) 40%, rgba(24,35,49,0.85) 100%);
}

/* Placeholder editorial · sesiones sin cover_url
   Gradiente marina + ícono cámara line-art en firma. Mantiene la
   estética premium quiet luxury sin parecer "rota". */
.btf-sesion-card--placeholder {
  background: linear-gradient(135deg, var(--color-tinta, #182331) 0%, var(--color-marina, #1F4865) 100%);
}
.btf-sesion-card__placeholder-icon {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--color-firma, #A88B5C);
  opacity: 0.55;
  transition: opacity var(--dur-hover, 480ms) var(--ease-premium, cubic-bezier(.16,1,.3,1)),
              transform var(--dur-hover, 480ms) var(--ease-premium, cubic-bezier(.16,1,.3,1));
}
.btf-sesion-card--placeholder:hover .btf-sesion-card__placeholder-icon {
  opacity: 0.85;
  transform: scale(1.04);
}
.btf-sesion-card__meta {
  position: absolute; left: var(--sp-5, 48px); bottom: var(--sp-5, 48px); right: var(--sp-5, 48px);
  z-index: 2;
}
.btf-sesion-card__date {
  font-family: var(--font-display, 'DM Sans', sans-serif);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-firma, #A88B5C);
  margin: 0 0 12px;
}
.btf-sesion-card__title {
  font-family: var(--font-display, 'DM Sans', sans-serif);
  font-weight: 200;
  font-size: clamp(28px, 3vw, 48px);
  line-height: 1.0;
  letter-spacing: -0.018em;
  color: var(--color-arena-soft, #FAF4E5);
  margin: 0 0 8px;
}
.btf-sesion-card__count {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-weight: 300;
  font-size: 13px;
  color: var(--color-arena-soft, #FAF4E5);
  opacity: 0.78;
  margin: 0;
}

/* ---------- Foto de la galería (vista B) ---------- */
.btf-photo {
  border: 0;
  padding: 0;
  cursor: pointer;
  background: var(--color-tinta, #182331);
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  transition: transform 200ms var(--ease-premium, cubic-bezier(.16,1,.3,1));
}
.btf-photo:focus-visible { outline: 2px solid var(--color-firma, #A88B5C); outline-offset: 2px; }
.btf-photo img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 1200ms var(--ease-premium, cubic-bezier(.16,1,.3,1)),
              filter var(--dur-hover, 480ms) var(--ease-premium, cubic-bezier(.16,1,.3,1));
}
.btf-photo:hover img { transform: scale(1.04); }

.btf-photo__num {
  position: absolute;
  top: 12px; left: 12px;
  z-index: 2;
  font-family: var(--font-display, 'DM Sans', sans-serif);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-arena-soft, #FAF4E5);
  background: rgba(24,35,49,0.55);
  padding: 4px 10px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.btf-photo__check {
  position: absolute;
  top: 12px; right: 12px;
  z-index: 2;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,0.92);
  color: var(--color-tinta, #182331);
  font-weight: 700;
  font-size: 16px;
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  transform: scale(0.7);
  transition: opacity var(--dur-hover, 480ms) var(--ease-premium, cubic-bezier(.16,1,.3,1)),
              transform var(--dur-hover, 480ms) var(--ease-premium, cubic-bezier(.16,1,.3,1));
}
.btf-photo[aria-pressed="true"] .btf-photo__check {
  opacity: 1; transform: scale(1);
  background: var(--color-firma, #A88B5C);
  color: var(--color-arena-soft, #FAF4E5);
}
.btf-photo[aria-pressed="true"]::after {
  content: '';
  position: absolute; inset: 0;
  background: rgba(168,139,92, 0.18);
  pointer-events: none;
  z-index: 1;
}

/* ---------- FAB del carrito ---------- */
.btf-fab {
  position: fixed;
  bottom: 24px; right: 24px;
  z-index: 40;
  background: var(--color-firma, #A88B5C);
  color: var(--color-arena-soft, #FAF4E5);
  border: 0;
  padding: 14px 22px;
  font-family: var(--font-display, 'DM Sans', sans-serif);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.22);
  transition: background var(--dur-hover, 480ms) var(--ease-premium, cubic-bezier(.16,1,.3,1)),
              transform var(--dur-hover, 480ms) var(--ease-premium, cubic-bezier(.16,1,.3,1)),
              opacity var(--dur-hover, 480ms) var(--ease-premium, cubic-bezier(.16,1,.3,1));
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
}
.btf-fab.is-visible {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}
.btf-fab:hover { background: var(--color-firma-deep, #8B7148); }
.btf-fab__count {
  background: rgba(0,0,0,0.22);
  border-radius: 999px;
  padding: 2px 10px;
  font-variant-numeric: tabular-nums;
}

/* ---------- Drawer ---------- */
.btf-drawer-bg {
  position: fixed; inset: 0;
  background: rgba(24,35,49,0.62);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 50;
  opacity: 0;
  pointer-events: none;
  transition: opacity 320ms var(--ease-premium, cubic-bezier(.16,1,.3,1));
}
.btf-drawer-bg.is-open { opacity: 1; pointer-events: auto; }

.btf-drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(420px, 92vw);
  background: var(--color-arena-soft, #FAF4E5);
  color: var(--color-tinta, #182331);
  z-index: 51;
  transform: translateX(100%);
  transition: transform 480ms var(--ease-premium, cubic-bezier(.16,1,.3,1));
  display: flex;
  flex-direction: column;
  box-shadow: -12px 0 40px rgba(0,0,0,0.28);
}
.btf-drawer.is-open { transform: none; }

.btf-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 28px;
  border-bottom: 1px solid rgba(24,35,49,0.10);
}
.btf-drawer__title {
  font-family: var(--font-display, 'DM Sans', sans-serif);
  font-weight: 300;
  font-size: 22px;
  margin: 0;
  letter-spacing: -0.012em;
}
.btf-drawer__title em {
  color: var(--color-firma, #A88B5C);
  font-style: italic;
  font-weight: 300;
}
.btf-drawer__close {
  background: transparent;
  border: 0;
  font-size: 28px;
  cursor: pointer;
  color: var(--color-tinta, #182331);
  line-height: 1;
  padding: 4px 8px;
  transition: color var(--dur-hover, 480ms) var(--ease-premium, cubic-bezier(.16,1,.3,1));
}
.btf-drawer__close:hover { color: var(--color-firma, #A88B5C); }

.btf-drawer__sesion {
  padding: 12px 28px;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 13px;
  color: var(--color-tinta, #182331);
  opacity: 0.72;
  border-bottom: 1px solid rgba(24,35,49,0.08);
}

.btf-drawer__list {
  flex: 1;
  overflow-y: auto;
  padding: 12px 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0;
  list-style: none;
}
.btf-drawer__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  border: 1px solid rgba(24,35,49,0.10);
  background: #fff;
}
.btf-drawer__item img {
  width: 56px; height: 56px;
  object-fit: cover;
  background: var(--color-tinta, #182331);
}
.btf-drawer__item-num {
  flex: 1;
  font-family: var(--font-display, 'DM Sans', sans-serif);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.04em;
}
.btf-drawer__item-remove {
  background: transparent;
  border: 0;
  color: rgba(24,35,49,0.55);
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
  padding: 4px 8px;
  transition: color var(--dur-hover, 480ms) var(--ease-premium, cubic-bezier(.16,1,.3,1));
}
.btf-drawer__item-remove:hover { color: #b91c1c; }

.btf-drawer__empty {
  text-align: center;
  padding: 60px 28px;
  color: var(--color-tinta, #182331);
  opacity: 0.55;
  font-family: var(--font-body, 'Inter', sans-serif);
}

.btf-drawer__footer {
  border-top: 1px solid rgba(24,35,49,0.10);
  padding: 18px 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.btf-drawer__send {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: #25D366;
  color: #fff;
  border: 0;
  font-family: var(--font-display, 'DM Sans', sans-serif);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 16px 24px;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--dur-hover, 480ms) var(--ease-premium, cubic-bezier(.16,1,.3,1));
}
.btf-drawer__send:hover { background: #1eba57; }
.btf-drawer__send[disabled] { opacity: 0.45; cursor: not-allowed; }
.btf-drawer__clear {
  background: transparent;
  border: 0;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--color-tinta, #182331);
  opacity: 0.55;
  cursor: pointer;
  padding: 6px;
  transition: opacity var(--dur-hover, 480ms) var(--ease-premium, cubic-bezier(.16,1,.3,1));
}
.btf-drawer__clear:hover { opacity: 1; }

/* =========================================================
   Campo "Tu nombre" en el drawer del carrito · v1.0.1
   ========================================================= */
.btf-drawer__name-field {
    padding: 16px 24px;
    border-bottom: 1px solid rgba(0,0,0,0.06);
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.btf-drawer__name-label {
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(0,0,0,0.55);
}
.btf-drawer__name-input {
    width: 100%;
    padding: 8px 0;
    background: transparent;
    border: 0;
    border-bottom: 1px solid rgba(0,0,0,0.18);
    font: inherit;
    font-size: 16px;
    color: inherit;
    outline: none;
    transition: border-color 0.32s cubic-bezier(0.16,1,0.3,1);
}
.btf-drawer__name-input:focus { border-bottom-color: var(--color-firma, #A88B5C); }
.btf-drawer__name-input::placeholder { color: rgba(0,0,0,0.35); }