/* ================================================
   CATALOG — listado con filtros.
   Desktop: sidebar sticky 280px + grid 4 columnas.
   Mobile:  botón flotante "Filtrar (n)" abre offcanvas
            bottom (bottom-sheet).
   ================================================ */

/* ================================================
   HEADER DEL CATÁLOGO
   ================================================ */
.catalog-head {
    padding: 2rem 0 2.5rem;
    border-bottom: 1px solid var(--bb-line);
}
.catalog-head .eyebrow { margin-bottom: 0.75rem; }
.catalog-head h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4.5vw, 3.25rem);
    line-height: 1.05;
    margin: 0 0 0.5rem;
    color: var(--bb-ink);
}
.catalog-head h1 em { font-style: italic; color: var(--bb-gold-dark); font-weight: 500; }
.catalog-head .lead {
    color: var(--bb-ink-muted);
    font-size: 1.02rem;
    line-height: 1.6;
    max-width: 640px;
    margin: 0;
}

/* ================================================
   LAYOUT PRINCIPAL
   ================================================ */
.catalog-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 3.5rem;
    padding: 2.5rem 0 var(--section-y);
    align-items: start;
}
@media (max-width: 991.98px) {
    .catalog-layout { grid-template-columns: 1fr; gap: 1.5rem; }
}

/* ────── Sidebar (desktop) ────── */
.catalog-sidebar {
    position: sticky;
    top: 96px;     /* navbar height */
    align-self: start;
}
@media (max-width: 991.98px) {
    .catalog-sidebar { display: none; }
}

/* ================================================
   FILTER GROUP — cada bloque colapsable
   ================================================ */
.filter-group {
    border-bottom: 1px solid var(--bb-line);
    padding: 1.25rem 0;
}
.filter-group:first-child { padding-top: 0; }
.filter-group-trigger {
    width: 100%;
    background: transparent;
    border: none;
    padding: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: var(--ls-uppercase);
    text-transform: uppercase;
    color: var(--bb-ink);
    cursor: pointer;
    margin-bottom: 1rem;
}
.filter-group-trigger .icon {
    transition: transform var(--dur) var(--bb-ease);
    color: var(--bb-ink-muted);
    font-size: 0.85rem;
}
.filter-group.is-collapsed .icon { transform: rotate(-90deg); }
.filter-group-body {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}
.filter-group.is-collapsed .filter-group-body { display: none; }

/* ────── Range slider doble (price) ────── */
.range-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    align-items: end;
    margin-top: 0.25rem;
}
.range-row .field { margin: 0; }
.range-row .field-input {
    padding: 0.5rem 0;
    font-size: 0.9rem;
}
.price-range {
    margin: 1rem 0 0.5rem;
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 2px;
    background: var(--bb-line-strong);
    outline: none;
    cursor: pointer;
}
.price-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    background: var(--bb-ink);
    border-radius: 50%;
    cursor: grab;
}
.price-range::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: var(--bb-ink);
    border-radius: 50%;
    border: none;
    cursor: grab;
}

/* ────── Acciones del sidebar ────── */
.sidebar-actions {
    margin-top: 1.5rem;
    display: grid;
    gap: 0.65rem;
}
.btn-clear-all {
    background: transparent;
    border: none;
    color: var(--bb-ink-muted);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    cursor: pointer;
    padding: 0.5rem 0;
    text-align: left;
    transition: color var(--dur) var(--bb-ease);
}
.btn-clear-all:hover { color: var(--bb-error); }

/* ================================================
   TOOLBAR — sort + count + mobile filter trigger
   ================================================ */
.catalog-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}
.catalog-count {
    font-size: 0.85rem;
    color: var(--bb-ink-muted);
}
.catalog-count strong { color: var(--bb-ink); font-weight: 600; }

.toolbar-right {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

/* Sort dropdown (es un <select> custom-styled) */
.sort-select {
    background: transparent;
    border: 1px solid var(--bb-line-strong);
    padding: 0.55rem 2.25rem 0.55rem 0.85rem;
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--bb-ink);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%230f0f0f' d='M5 6L0 0h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.85rem center;
    background-size: 9px;
}

/* Trigger del bottom-sheet en mobile */
.btn-mobile-filter {
    display: none;
    background: var(--bb-ink);
    color: #fff;
    border: none;
    padding: 0.7rem 1.1rem;
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: var(--ls-uppercase);
    text-transform: uppercase;
    cursor: pointer;
    align-items: center;
    gap: 0.5rem;
}
.btn-mobile-filter .badge-count {
    background: #fff;
    color: var(--bb-ink);
    font-size: 0.65rem;
    padding: 0.1rem 0.4rem;
}
@media (max-width: 991.98px) {
    .btn-mobile-filter { display: inline-flex; }
}

/* ================================================
   ACTIVE FILTERS BAR — chips de filtros aplicados
   ================================================ */
.active-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}
.active-filters:empty { display: none; }
.active-filters .label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--bb-ink-muted);
    font-weight: 600;
    margin-right: 0.5rem;
    align-self: center;
}

/* ================================================
   GRID DE PRODUCTOS
   ================================================ */
.catalog-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}
@media (max-width: 1199.98px) { .catalog-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 767.98px)  { .catalog-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; } }

/* ================================================
   BOTTOM-SHEET MOBILE FILTERS
   Bootstrap offcanvas-bottom
   ================================================ */
.offcanvas-filter {
    height: 85vh !important;
    background: var(--bb-bg);
    border-top: 1px solid var(--bb-line);
}
.offcanvas-filter .offcanvas-header {
    border-bottom: 1px solid var(--bb-line);
    padding: 1.25rem 1.5rem;
    align-items: center;
}
.offcanvas-filter .offcanvas-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--bb-ink);
    margin: 0;
}
.offcanvas-filter .offcanvas-body {
    padding: 1.5rem 1.5rem 8rem;
    overflow-y: auto;
}
.offcanvas-filter-footer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: #fff;
    border-top: 1px solid var(--bb-line);
    padding: 1rem 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.6rem;
    z-index: 2;
}

/* "Drag handle" pequeño arriba del bottom-sheet */
.offcanvas-filter .offcanvas-header::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 36px;
    height: 4px;
    border-radius: 999px;
    background: var(--bb-line-strong);
}

/* ================================================
   SKELETON LOADER (placeholder mientras carga)
   ================================================ */
.skeleton {
    background: linear-gradient(90deg,
        var(--bb-bg-warm) 0%,
        var(--bb-bg-soft) 50%,
        var(--bb-bg-warm) 100%);
    background-size: 200% 100%;
    animation: skel 1.4s ease-in-out infinite;
}
@keyframes skel {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}