/* ==========================================================================
   LISTADOS FILTRABLES (adenda A5) + capa visual/UX S7
   Reutiliza .os-card, .os-tag de style.css. Aquí: layout sidebar/resultados,
   acordeones de filtros, chips de filtros activos, drawer móvil, contador
   (aria-live) y pulido de tarjeta. Patrón facetado tipo e-commerce, con los
   design tokens del proyecto. El contrato de accesibilidad de S6 (inputs
   nativos, labels, fieldsets, aria-live) se mantiene intacto.
   ========================================================================== */

.os-listado {
    max-width: var(--os-max-width, 1280px);
    margin: 0 auto;
    padding: 0 var(--os-content-padding, 16px);
}

/* --- Layout: sidebar de filtros + resultados --------------------------- */

.os-listado__layout {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 32px;
    align-items: start;
}

.os-listado__sidebar {
    position: sticky;
    top: 20px;
    max-height: calc(100vh - 40px);
    overflow-y: auto;
    background-color: var(--color-crema, #F5F3EE);
    border-radius: 12px;
    padding: 4px 12px;
}

.os-listado__main {
    min-width: 0;
}

/* --- Formulario de filtros (acordeones) -------------------------------- */

.os-filters {
    display: block;
    margin: 0;
    padding: 0;
}

/* Cada grupo = un fieldset con divulgación accesible. */
.os-filters__group {
    border: 0;
    border-bottom: 1px solid var(--color-arena, #E8E4DA);
    margin: 0;
    padding: 0;
    min-width: 0;
    display: block;
}
.os-filters__group:last-of-type {
    border-bottom: 0;
}

.os-filters__legend {
    display: block;
    width: 100%;
    padding: 0;
    margin: 0;
    float: none;
}

/* Botón de divulgación: título en Bricolage 600 + badge + chevron. */
.os-filters__toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 14px 4px;
    border: 0;
    background: transparent;
    cursor: pointer;
    text-align: left;
    font-family: 'Bricolage Grotesque', system-ui, sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-antracita, #333);
}
.os-filters__toggle-label { flex: 1 1 auto; }

.os-filters__count {
    flex: 0 0 auto;
    min-width: 20px;
    padding: 1px 7px;
    border-radius: 999px;
    background: var(--color-naranja-accion, #BF4B0A);
    color: var(--color-blanco, #fff);
    font-size: 0.72rem;
    font-weight: 700;
    text-align: center;
    line-height: 1.5;
}

.os-filters__chevron {
    flex: 0 0 auto;
    width: 9px;
    height: 9px;
    margin-right: 4px;
    border-right: 2px solid var(--color-gris-calido, #6B6B5E);
    border-bottom: 2px solid var(--color-gris-calido, #6B6B5E);
    transform: rotate(45deg);
    transition: transform 0.2s ease;
}
.os-filters__toggle[aria-expanded="true"] .os-filters__chevron {
    transform: rotate(-135deg);
}
.os-filters__toggle:focus-visible {
    outline: 3px solid var(--color-naranja-accion, #BF4B0A);
    outline-offset: -3px;
    border-radius: 6px;
}

.os-filters__region {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 0 2px 12px;
}
.os-filters__region[hidden] { display: none; } /* disclosure nativo, sale del tab order */

.os-filters__opt {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 36px;
    font-size: 0.9375rem;
    color: var(--color-antracita, #333);
    cursor: pointer;
}
.os-filters__opt input {
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
    accent-color: var(--color-naranja-accion, #BF4B0A);
}

/* --- Botón "Filtros (n)" (solo móvil, con JS) + cabecera del drawer ----- */

.os-filters-open { display: none; }
.os-filters-open__count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    border-radius: 999px;
    background: var(--color-blanco, #fff);
    color: var(--color-naranja-accion, #BF4B0A);
    font-size: 0.78rem;
    font-weight: 700;
}
.os-filters-drawer__head { display: none; }
.os-filters-overlay { display: none; }

/* --- Chips de filtros activos ------------------------------------------ */

.os-active-filters {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
}
.os-active-filters:empty { margin: 0; }

.os-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 4px 5px 12px;
    border-radius: 999px;
    background: var(--color-arena, #E8E4DA);
    color: var(--color-antracita, #333);
    font-size: 0.85rem;
}
.os-chip__remove {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border: 0;
    border-radius: 50%;
    background: rgba(26, 26, 26, 0.08);
    color: var(--color-antracita, #333);
    font-size: 1.05rem;
    line-height: 1;
    cursor: pointer;
}
.os-chip__remove:hover { background: var(--color-naranja-accion, #BF4B0A); color: var(--color-blanco, #fff); }
.os-chip__remove:focus-visible { outline: 2px solid var(--color-naranja-accion, #BF4B0A); outline-offset: 2px; }

.os-active-filters__clear {
    border: 0;
    background: none;
    padding: 4px 6px;
    color: var(--color-naranja-accion, #BF4B0A);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: underline;
    cursor: pointer;
}

/* --- Contador de resultados (aria-live) -------------------------------- */

.os-listado__count {
    font-weight: 600;
    color: var(--color-gris-calido, #6B6B5E);
    margin: 0 0 16px;
}

/* --- Rejilla ----------------------------------------------------------- */

.os-listado__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
    transition: opacity var(--os-transition-base, 250ms ease-in-out);
}
.os-listado.is-loading .os-listado__grid {
    opacity: 0.5;
    pointer-events: none;
}
.os-listado__vacio,
.os-listado__error {
    grid-column: 1 / -1;
    padding: 32px;
    text-align: center;
    color: var(--color-gris-calido, #6B6B5E);
}
.os-listado__error { color: var(--color-naranja-accion, #BF4B0A); }

/* --- Tarjeta (complementa .os-card de style.css) ----------------------- */

.os-card {
    position: relative;
    display: flex;
    flex-direction: column;
}
.os-card__link {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
    color: inherit;
}

.os-card__image {
    aspect-ratio: 3 / 2;
    background-color: var(--color-arena, #E8E4DA);
    overflow: hidden;
}
.os-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Placeholder cuando no hay imagen destacada: gris arena + icono de tipo. */
.os-card__image-ph {
    display: block;
    width: 100%;
    height: 100%;
    background: var(--color-arena, #E8E4DA) center / 48px no-repeat;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236B6B5E' stroke-width='1.6'%3E%3Crect x='3' y='5' width='18' height='14' rx='1'/%3E%3Ccircle cx='8.5' cy='10' r='1.6'/%3E%3Cpath d='M21 17l-5-5-9 7'/%3E%3C/svg%3E");
}
.os-card--lugar .os-card__image-ph {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232E6B3A' stroke-width='1.6'%3E%3Cpath d='M12 21s-6-5.5-6-10a6 6 0 1 1 12 0c0 4.5-6 10-6 10z'/%3E%3Ccircle cx='12' cy='11' r='2.2'/%3E%3C/svg%3E");
}
.os-card--ruta .os-card__image-ph {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232E6B3A' stroke-width='1.6' stroke-linejoin='round'%3E%3Cpath d='M3 19l5-9 3.5 5.5L15 11l6 8z'/%3E%3C/svg%3E");
}
.os-card--negocio .os-card__image-ph {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23E8651A' stroke-width='1.6' stroke-linejoin='round'%3E%3Cpath d='M4 10v9h16v-9'/%3E%3Cpath d='M3 5h18l1 4a3 3 0 0 1-6 0 3 3 0 0 1-6 0 3 3 0 0 1-6 0z'/%3E%3C/svg%3E");
}
.os-card--evento .os-card__image-ph {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23E8651A' stroke-width='1.6'%3E%3Crect x='4' y='5' width='16' height='15' rx='1'/%3E%3Cpath d='M4 9h16M8 3v4M16 3v4'/%3E%3C/svg%3E");
}

.os-card__body {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.os-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.os-card__title {
    font-size: 1.125rem;
    margin: 0;
    color: var(--color-negro, #1A1A1A);
}
.os-card__meta {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 4px 16px;
    font-size: 0.875rem;
    color: var(--color-gris-calido, #6B6B5E);
}
.os-card__meta a { color: inherit; }

/* Badge de dificultad coloreado (Fácil=verde, Moderada=ocre, Difícil/Experto=naranja). */
.os-card__tags .os-tag--facil { background: var(--color-verde-bosque, #2E6B3A); color: var(--color-blanco, #fff); }
.os-card__tags .os-tag--moderada { background: var(--color-ocre, #C4AD82); color: var(--color-negro, #1A1A1A); }
.os-card__tags .os-tag--dificil,
.os-card__tags .os-tag--experto { background: var(--color-naranja-accion, #BF4B0A); color: var(--color-blanco, #fff); }

/* ==========================================================================
   Responsive: <768px los filtros pasan a un drawer off-canvas (con JS).
   Sin JS, la barra lateral queda como bloque apilado normal (los filtros
   siguen accesibles y el formulario recarga por GET).
   ========================================================================== */

@media (max-width: 767px) {
    .os-listado__layout {
        display: block;
    }

    /* Con JS: botón de apertura + drawer. */
    .os-has-js .os-filters-open {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        min-height: 44px;
        margin-bottom: 16px;
        padding: 0 18px;
        border: 0;
        border-radius: 8px;
        background: var(--color-naranja-accion, #BF4B0A);
        color: var(--color-blanco, #fff);
        font-family: 'Bricolage Grotesque', system-ui, sans-serif;
        font-weight: 600;
        cursor: pointer;
    }
    .os-has-js .os-filters-open:focus-visible {
        outline: 3px solid var(--color-negro, #1A1A1A);
        outline-offset: 2px;
    }

    .os-has-js .os-listado__sidebar {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        left: auto;
        width: min(340px, 88vw);
        max-height: none;
        border-radius: 0;
        transform: translateX(100%);
        transition: transform 0.25s ease;
        z-index: 9999;
        box-shadow: -6px 0 24px rgba(26, 26, 26, 0.22);
    }
    .os-has-js.os-drawer-open .os-listado__sidebar {
        transform: translateX(0);
    }

    .os-has-js .os-filters-drawer__head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 8px;
        padding: 12px 4px 8px;
        border-bottom: 1px solid var(--color-arena, #E8E4DA);
        margin-bottom: 4px;
    }
    .os-filters-drawer__title {
        margin: 0;
        font-family: 'Bricolage Grotesque', system-ui, sans-serif;
        font-size: 1.15rem;
        font-weight: 600;
    }
    .os-filters-close {
        width: 44px;
        height: 44px;
        border: 0;
        border-radius: 8px;
        background: transparent;
        color: var(--color-antracita, #333);
        font-size: 1.8rem;
        line-height: 1;
        cursor: pointer;
    }
    .os-filters-close:hover { background: var(--color-arena, #E8E4DA); }

    .os-has-js.os-drawer-open .os-filters-overlay {
        display: block;
        position: fixed;
        inset: 0;
        z-index: 9998;
        background: rgba(26, 26, 26, 0.45);
    }
}