/* ============================================================================
   actividad.css — Ficha de actividad (UI v2, rediseño oct-2026). Página "de producto":
   héroe con foto grande + nombre, precio y reservar; barra de compra fija al hacer
   scroll; texto en la columna de lectura; carrusel de
   relacionadas. Solo tokens --ui-* (no carga reservajapon.css).
   ============================================================================ */

/* ── 1. Héroe ──────────────────────────────────────────────────────────────── */
.act-hero {
    display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 56px; align-items: center;
    padding-top: 40px;
}
.act-media:empty { display: none; }
.act-hero:has(.act-media:empty) { grid-template-columns: minmax(0, 760px); justify-content: center; }
.act-photo { margin: 0; }
.act-photo img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; border-radius: var(--ui-radius-photo); background: var(--ui-surface); }
.act-media.is-empty { display: none; }
.act-credit { margin-top: 10px; font-size: 12px; color: var(--ui-ink-3); }
.act-credit a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }

.act-info { min-width: 0; }
.act-back { display: inline-block; margin-bottom: 22px; font-size: 15px; color: var(--ui-accent-ink); }
.act-back::before { content: "\2039\00a0"; }
.act-kicker { margin: 0 0 10px; font-size: 15px; font-weight: 600; color: var(--ui-accent-ink); }
body.ui2 .act-title { margin: 0; font-size: clamp(36px, 4.4vw, 56px); line-height: 1.05; font-weight: 700; letter-spacing: -0.035em; color: var(--ui-ink); }
.act-tagline { margin: 16px 0 0; font-size: clamp(18px, 1.7vw, 21px); line-height: 1.45; color: var(--ui-ink-2); letter-spacing: -0.012em; }

.act-price { margin: 28px 0 0; }
.act-price-main { display: block; font-size: 32px; line-height: 1.1; font-weight: 600; letter-spacing: -0.025em; color: var(--ui-ink); font-variant-numeric: tabular-nums; }
.act-price-sub { display: block; margin-top: 4px; font-size: 15px; color: var(--ui-ink-2); }

.act-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 14px 26px; margin-top: 28px; }
.act-actions:empty { display: none; }
.act-book { padding: 14px 30px; font-size: 17px; }
.act-note { margin: 16px 0 0; font-size: 14px; line-height: 1.5; color: var(--ui-ink-2); }

/* ── 5. Relacionadas: las fotos de actividad son apaisadas ─────────────────── */
.ui-act .ui-rail .ui-media img, .ui-act .ui-rail .ui-media--empty { aspect-ratio: 4 / 3; }
.ui-act .ui-rail { grid-auto-columns: minmax(240px, 1fr); }

/* ── 2. Barra de compra fija ───────────────────────────────────────────────── */
.act-buybar {
    position: fixed; left: 0; right: 0; top: 0; z-index: 40;
    background: var(--ui-bg); border-bottom: 1px solid var(--ui-line);
    transform: translateY(-100%); transition: transform 0.25s ease; visibility: hidden;
}
.act-buybar.is-visible { transform: none; visibility: visible; }
.act-buybar-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 60px; }
.act-buybar-txt { display: flex; align-items: baseline; gap: 14px; min-width: 0; }
.act-buybar-name { font-size: 17px; font-weight: 600; letter-spacing: -0.015em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.act-buybar-price { flex: none; font-size: 15px; color: var(--ui-ink-2); font-variant-numeric: tabular-nums; }
.act-buybar-btn { flex: none; padding: 8px 18px; font-size: 15px; }

@media (prefers-reduced-motion: reduce) {
    .act-buybar { transition: none; }
}

/* ── Tablet / móvil ────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .act-hero { grid-template-columns: 1fr; gap: 28px; padding-top: 20px; }
    .act-photo img { aspect-ratio: 4 / 3; }
}
@media (max-width: 600px) {
    .act-hero { padding-top: 12px; gap: 22px; }
    .act-photo img { border-radius: 18px; }
    .act-back { margin-bottom: 16px; }
    .act-price-main { font-size: 28px; }
    .act-actions { flex-direction: column; align-items: stretch; gap: 14px; }
    .act-book { text-align: center; }
    .act-actions .ui-link { align-self: flex-start; }
    /* En móvil la barra va abajo, al alcance del pulgar */
    .act-buybar { top: auto; bottom: 0; border-bottom: 0; border-top: 1px solid var(--ui-line); transform: translateY(100%); padding-bottom: env(safe-area-inset-bottom); }
    .act-buybar-inner { height: 64px; }
    .act-buybar-txt { flex-direction: column; gap: 0; }
    .act-buybar-name { font-size: 15px; }
    .act-buybar-price { font-size: 13px; }
}