/* ============================================
   SISTEMA DE FILTROS DE PRODUCTOS - CSS
   Responsive y personalizable
   ============================================ */

/* Variables CSS - Personaliza estos valores según tu diseño */
:root {
    --filtro-color-primario: #2c3e50;
    --filtro-color-secundario: #3498db;
    --filtro-color-hover: #2980b9;
    --filtro-color-texto: #333;
    --filtro-color-texto-claro: #666;
    --filtro-color-borde: #e0e0e0;
    --filtro-color-fondo: #fff;
    --filtro-color-fondo-hover: #f8f9fa;
    --filtro-radio-bordes: 8px;
    --filtro-espaciado: 16px;
    --filtro-fuente: inherit;
}

/* Contenedor principal */
.filtro-productos-wrapper {
    background: var(--filtro-color-fondo);
    padding: var(--filtro-espaciado);
    border-radius: var(--filtro-radio-bordes);
    border: 1px solid var(--filtro-color-borde);
    font-family: var(--filtro-fuente);
    font-size: 14px;
}

/* Secciones del filtro */
.filtro-seccion {
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--filtro-color-borde);
}

.filtro-seccion:last-of-type {
    border-bottom: none;
}

.filtro-titulo {
    font-size: 16px;
    font-weight: 600;
    color: var(--filtro-color-primario);
    margin: 0 0 12px 0;
    padding: 0;
}

.filtro-contenido {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* ============================================
   BÚSQUEDA
   ============================================ */
.filtro-busqueda {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.filtro-busqueda-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.filtro-input-busqueda {
    width: 100%;
    padding: 10px 45px 10px 12px;
    border: 1px solid var(--filtro-color-borde);
    border-radius: var(--filtro-radio-bordes);
    font-size: 14px;
    color: var(--filtro-color-texto);
    transition: all 0.3s ease;
    outline: none;
}

.filtro-input-busqueda:focus {
    border-color: var(--filtro-color-secundario);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.filtro-btn-buscar {
    position: absolute;
    right: 8px;
    background: transparent;
    border: none;
    padding: 8px;
    cursor: pointer;
    color: var(--filtro-color-texto-claro);
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.filtro-btn-buscar:hover {
    color: var(--filtro-color-secundario);
}

/* Botón limpiar superior */
.filtro-btn-limpiar-superior {
    width: 100%;
    padding: 8px 12px;
    background-color: transparent;
    border: 1px solid var(--filtro-color-borde);
    border-radius: var(--filtro-radio-bordes);
    color: var(--filtro-color-texto);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.filtro-btn-limpiar-superior:hover {
    background-color: #f8d7da;
    border-color: #dc3545;
    color: #dc3545;
}

.filtro-btn-limpiar-superior svg {
    width: 14px;
    height: 14px;
}

/* Selector de ordenación */
.filtro-ordenacion-wrapper {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.filtro-ordenacion-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--filtro-color-primario);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filtro-ordenacion-label svg {
    width: 14px;
    height: 14px;
}

.filtro-select-ordenacion {
    width: 100%;
    padding: 9px 35px 9px 12px;
    border: 1px solid var(--filtro-color-borde);
    border-radius: var(--filtro-radio-bordes);
    font-size: 14px;
    color: var(--filtro-color-texto);
    background-color: var(--filtro-color-fondo);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

.filtro-select-ordenacion:hover {
    border-color: var(--filtro-color-secundario);
}

.filtro-select-ordenacion:focus {
    border-color: var(--filtro-color-secundario);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.filtro-select-ordenacion option {
    padding: 8px;
}

/* ============================================
   CHECKBOXES PERSONALIZADOS
   ============================================ */
.filtro-checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 6px 8px;
    border-radius: 6px;
    transition: background-color 0.2s ease;
    position: relative;
}

.filtro-checkbox-label:hover {
    background-color: var(--filtro-color-fondo-hover);
}

.filtro-checkbox {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.filtro-checkbox-custom {
    position: relative;
    width: 18px;
    height: 18px;
    border: 2px solid var(--filtro-color-borde);
    border-radius: 4px;
    margin-right: 10px;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.filtro-checkbox:checked + .filtro-checkbox-custom {
    background-color: var(--filtro-color-secundario);
    border-color: var(--filtro-color-secundario);
}

.filtro-checkbox:checked + .filtro-checkbox-custom::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 2px;
    width: 4px;
    height: 8px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.filtro-label-text {
    flex: 1;
    color: var(--filtro-color-texto);
    font-size: 14px;
}

.filtro-count {
    color: var(--filtro-color-texto-claro);
    font-size: 12px;
    margin-left: 6px;
}

/* ============================================
   CATEGORÍAS JERÁRQUICAS
   ============================================ */
.filtro-categoria-item {
    display: flex;
    flex-direction: column;
}

.filtro-categoria-padre {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.filtro-toggle-hijos {
    background: transparent;
    border: none;
    padding: 4px;
    cursor: pointer;
    color: var(--filtro-color-texto-claro);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.filtro-toggle-hijos:hover {
    background-color: var(--filtro-color-fondo-hover);
    color: var(--filtro-color-secundario);
}

.filtro-toggle-hijos.activo {
    transform: rotate(180deg);
}

.filtro-subcategorias {
    margin-left: 28px;
    margin-top: 4px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.filtro-subcategoria {
    font-size: 13px;
}

/* Categorías ocultas inicialmente */
.filtro-cat-oculta {
    display: none;
}

.filtro-cat-oculta.mostrar {
    display: flex;
}

/* Marcas ocultas inicialmente */
.filtro-marca-oculta {
    display: none;
}

.filtro-marca-oculta.mostrar {
    display: flex;
}

/* ============================================
   BOTÓN MOSTRAR MÁS
   ============================================ */
.filtro-mostrar-mas,
.filtro-mostrar-mas-marcas {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
    padding: 8px;
    margin-top: 8px;
    background: transparent;
    border: 1px solid var(--filtro-color-borde);
    border-radius: 6px;
    color: var(--filtro-color-secundario);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filtro-mostrar-mas:hover,
.filtro-mostrar-mas-marcas:hover {
    background-color: var(--filtro-color-fondo-hover);
    border-color: var(--filtro-color-secundario);
}

.filtro-mostrar-mas svg,
.filtro-mostrar-mas-marcas svg {
    transition: transform 0.3s ease;
}

.filtro-mostrar-mas[data-estado="abierto"] svg,
.filtro-mostrar-mas-marcas[data-estado="abierto"] svg {
    transform: rotate(180deg);
}

/* ============================================
   FILTRO DE PRECIOS
   ============================================ */
.filtro-precio-inputs {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.filtro-precio-input-group {
    display: flex;
    flex-direction: column;
    flex: 1;
    position: relative;
}

.filtro-precio-input-group label {
    font-size: 11px;
    color: var(--filtro-color-texto-claro);
    margin-bottom: 4px;
    font-weight: 500;
}

.filtro-input-precio {
    width: 100%;
    padding: 8px 24px 8px 8px;
    border: 1px solid var(--filtro-color-borde);
    border-radius: 6px;
    font-size: 14px;
    color: var(--filtro-color-texto);
    outline: none;
    transition: border-color 0.3s ease;
}

.filtro-input-precio:focus {
    border-color: var(--filtro-color-secundario);
}

.filtro-precio-moneda {
    position: absolute;
    right: 10px;
    bottom: 8px;
    color: var(--filtro-color-texto-claro);
    font-size: 14px;
    pointer-events: none;
}

.filtro-precio-separador {
    color: var(--filtro-color-texto-claro);
    margin-top: 18px;
}

/* Slider de precios */
.filtro-precio-slider-wrapper {
    position: relative;
    width: 100%;
}

.filtro-precio-slider {
    position: relative;
    height: 5px;
    background-color: #e9ecef;
    border-radius: 5px;
}

.filtro-precio-progreso {
    position: absolute;
    height: 100%;
    background-color: var(--filtro-color-secundario);
    border-radius: 5px;
    transition: all 0.1s ease;
}

.filtro-precio-rangos {
    position: relative;
}

.filtro-range {
    position: absolute;
    width: 100%;
    height: 5px;
    top: -5px;
    background: transparent;
    pointer-events: none;
    -webkit-appearance: none;
    appearance: none;
}

.filtro-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background-color: var(--filtro-color-secundario);
    border-radius: 50%;
    cursor: pointer;
    pointer-events: auto;
    border: 2px solid white;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.filtro-range::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.filtro-range::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background-color: var(--filtro-color-secundario);
    border-radius: 50%;
    cursor: pointer;
    pointer-events: auto;
    border: 2px solid white;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.filtro-range::-moz-range-thumb:hover {
    transform: scale(1.1);
}

/* ============================================
   BOTONES DE ACCIÓN
   ============================================ */
.filtro-acciones {
    margin-top: 16px;
}

.filtro-btn-limpiar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px;
    background-color: transparent;
    border: 1px solid var(--filtro-color-borde);
    border-radius: var(--filtro-radio-bordes);
    color: var(--filtro-color-texto);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filtro-btn-limpiar:hover {
    background-color: #f8d7da;
    border-color: #dc3545;
    color: #dc3545;
}

/* ============================================
   INDICADOR DE CARGA - OVERLAY PANTALLA COMPLETA
   ============================================ */
.filtro-loading {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(3px);
    z-index: 99999;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 16px;
}

.filtro-loading.activo {
    display: flex;
}

.filtro-loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    background: white;
    padding: 32px 48px;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.filtro-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--filtro-color-borde);
    border-top-color: var(--filtro-color-secundario);
    border-radius: 50%;
    animation: filtro-spin 0.8s linear infinite;
}

.filtro-loading-text {
    color: var(--filtro-color-texto);
    font-size: 16px;
    font-weight: 500;
}

@keyframes filtro-spin {
    to {
        transform: rotate(360deg);
    }
}

/* Sin resultados */
.filtro-sin-resultados {
    color: var(--filtro-color-texto-claro);
    font-size: 13px;
    font-style: italic;
    margin: 8px 0;
}

/* ============================================
   BOTÓN FLOTANTE MÓVIL Y OVERLAY
   ============================================ */
.filtro-btn-toggle-mobile {
    display: none;
    position: fixed;
    bottom: 20px;
    left: 20px;
    background: var(--filtro-color-secundario);
    color: white;
    border: none;
    padding: 14px 20px;
    border-radius: 50px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 9999;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.filtro-btn-toggle-mobile:hover {
    background: var(--filtro-color-hover);
    transform: scale(1.05);
}

.filtro-btn-toggle-mobile svg {
    width: 20px;
    height: 20px;
}

/* ============================================
   ANIMACIÓN DE BIENVENIDA - INDICADOR DEL BOTÓN
   ============================================ */
.filtro-hint-arrow {
    display: none;
    position: fixed;
    bottom: 75px;
    left: 25px;
    z-index: 10000;
    pointer-events: none;
    animation: filtro-hint-bounce 1.5s ease-in-out infinite;
}

.filtro-hint-arrow svg {
    width: 36px;
    height: 36px;
    fill: var(--filtro-color-secundario);
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3));
}

.filtro-hint-pulse {
    display: none;
    position: fixed;
    bottom: 20px;
    left: 20px;
    width: 62px;
    height: 48px;
    border: 3px solid var(--filtro-color-secundario);
    border-radius: 50px;
    z-index: 9998;
    pointer-events: none;
    animation: filtro-hint-pulse 2s ease-in-out infinite;
}

/* Mostrar hints solo en móvil/tablet */
@media (max-width: 1024px) {
    .filtro-hint-arrow,
    .filtro-hint-pulse {
        display: block;
    }
    
    /* Ocultar después de 5 segundos */
    .filtro-hint-arrow.oculto,
    .filtro-hint-pulse.oculto {
        animation: filtro-hint-fadeout 0.5s ease-out forwards;
    }
}

/* Animaciones */
@keyframes filtro-hint-bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-12px);
    }
}

@keyframes filtro-hint-pulse {
    0%, 100% {
        opacity: 0.7;
        transform: scale(1);
    }
    50% {
        opacity: 0.3;
        transform: scale(1.15);
    }
}

@keyframes filtro-hint-fadeout {
    to {
        opacity: 0;
        visibility: hidden;
    }
}

.filtro-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9998;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.filtro-overlay.activo {
    display: block;
    opacity: 1;
}

/* Botón cerrar dentro del filtro móvil */
.filtro-btn-cerrar-mobile {
    display: none;
    width: 100%;
    padding: 12px;
    background: transparent;
    border: 1px solid var(--filtro-color-borde);
    border-radius: var(--filtro-radio-bordes);
    color: var(--filtro-color-texto);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    margin-bottom: 16px;
    transition: all 0.3s ease;
}

.filtro-btn-cerrar-mobile:hover {
    background: var(--filtro-color-fondo-hover);
}

/* ============================================
   RESPONSIVE - TABLET Y MÓVIL
   ============================================ */
@media (max-width: 1024px) {
    /* Mostrar botón flotante en móvil/tablet */
    .filtro-btn-toggle-mobile {
        display: flex;
    }
    
    /* Mostrar botón cerrar dentro del filtro */
    .filtro-btn-cerrar-mobile {
        display: block;
    }
    
    /* Convertir filtro en sidebar deslizable */
    .filtro-productos-wrapper {
        position: fixed;
        top: 0;
        left: -100%;
        width: 85%;
        max-width: 360px;
        height: 100vh;
        overflow-y: auto;
        z-index: 9999;
        padding: 16px;
        background: var(--filtro-color-fondo);
        box-shadow: 2px 0 15px rgba(0, 0, 0, 0.3);
        transition: left 0.3s ease;
    }
    
    /* Cuando está abierto */
    .filtro-productos-wrapper.abierto {
        left: 0;
    }
    
    .filtro-titulo {
        font-size: 15px;
    }

    .filtro-precio-inputs {
        flex-direction: column;
        gap: 12px;
    }

    .filtro-precio-separador {
        display: none;
    }

    .filtro-precio-input-group {
        width: 100%;
    }
}

/* ============================================
   RESPONSIVE - MÓVIL
   ============================================ */
@media (max-width: 480px) {
    .filtro-productos-wrapper {
        padding: 10px;
        border-radius: 6px;
    }

    .filtro-seccion {
        margin-bottom: 16px;
        padding-bottom: 16px;
    }

    .filtro-titulo {
        font-size: 14px;
        margin-bottom: 10px;
    }

    .filtro-input-busqueda {
        padding: 9px 40px 9px 10px;
        font-size: 13px;
    }

    .filtro-checkbox-label {
        padding: 5px 6px;
    }

    .filtro-label-text {
        font-size: 13px;
    }

    .filtro-checkbox-custom {
        width: 16px;
        height: 16px;
        margin-right: 8px;
    }

    .filtro-checkbox:checked + .filtro-checkbox-custom::after {
        left: 4px;
        top: 1px;
        width: 3px;
        height: 7px;
    }

    .filtro-count {
        font-size: 11px;
    }

    .filtro-subcategorias {
        margin-left: 22px;
    }

    .filtro-btn-limpiar {
        padding: 10px;
        font-size: 13px;
    }

    .filtro-input-precio {
        padding: 7px 22px 7px 7px;
        font-size: 13px;
    }

    .filtro-precio-moneda {
        right: 8px;
        bottom: 7px;
        font-size: 13px;
    }
}

/* ============================================
   AJUSTES PARA PANTALLAS MUY PEQUEÑAS
   ============================================ */
@media (max-width: 360px) {
    .filtro-productos-wrapper {
        padding: 8px;
    }

    .filtro-label-text {
        font-size: 12px;
    }

    .filtro-mostrar-mas {
        font-size: 12px;
        padding: 6px;
    }
}