/**
 * Estilos Frontend - Biblioteca de Recursos Multimediales
 * Diseño moderno, responsivo y compatible con Elementor
 */

:root {
    --brm-primary: #D54022;
    --brm-primary-hover: #b8341a;
    --brm-secondary: #E47C3D;
    --brm-accent: #6EC1E4;
    --brm-dark: #0f172a;
    --brm-text: #334155;
    --brm-muted: #64748b;
    --brm-light: #f8fafc;
    --brm-border: #e2e8f0;
    --brm-card-bg: #ffffff;
    --brm-radius-lg: 18px;
    --brm-radius-md: 12px;
    --brm-radius-sm: 8px;
    --brm-shadow-sm: 0 2px 8px -1px rgba(15, 23, 42, 0.06);
    --brm-shadow-md: 0 10px 25px -4px rgba(15, 23, 42, 0.08), 0 4px 6px -2px rgba(15, 23, 42, 0.04);
    --brm-shadow-lg: 0 20px 35px -5px rgba(15, 23, 42, 0.12);
    --brm-transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.brm-container {
    width: 100%;
    margin: 0 auto;
    font-family: inherit;
    color: var(--brm-text);
    box-sizing: border-box;
}

.brm-container * {
    box-sizing: border-box;
}

/* Header */
.brm-header {
    text-align: center;
    margin-bottom: 28px;
}

.brm-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--brm-dark);
    margin: 0 0 8px 0;
    line-height: 1.25;
}

.brm-subtitle {
    font-size: 15px;
    color: var(--brm-muted);
    margin: 0;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.5;
}

/* Toolbar: Buscador y Orden */
.brm-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 22px;
    background: #ffffff;
    padding: 16px 20px;
    border-radius: var(--brm-radius-lg);
    border: 1px solid var(--brm-border);
    box-shadow: var(--brm-shadow-sm);
}

.brm-search-box {
    position: relative;
    flex: 1 1 320px;
    display: flex;
    align-items: center;
}

.brm-search-icon {
    position: absolute;
    left: 16px;
    color: var(--brm-muted);
    font-size: 15px;
    pointer-events: none;
}

.brm-search-input {
    width: 100%;
    padding: 12px 42px 12px 42px !important;
    background: var(--brm-light) !important;
    border: 1px solid var(--brm-border) !important;
    border-radius: var(--brm-radius-md) !important;
    font-size: 14px !important;
    color: var(--brm-dark) !important;
    transition: var(--brm-transition) !important;
    outline: none !important;
    box-shadow: none !important;
}

.brm-search-input:focus {
    background: #ffffff !important;
    border-color: var(--brm-primary) !important;
    box-shadow: 0 0 0 3px rgba(213, 64, 34, 0.12) !important;
}

.brm-clear-search {
    position: absolute;
    right: 12px;
    background: transparent;
    border: none;
    color: var(--brm-muted);
    cursor: pointer;
    font-size: 14px;
    padding: 6px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--brm-transition);
}

.brm-clear-search:hover {
    color: var(--brm-primary);
    background: rgba(213, 64, 34, 0.08);
}

.brm-search-spinner {
    position: absolute;
    right: 14px;
    color: var(--brm-primary);
    font-size: 14px;
}

/* Ordenación */
.brm-order-box {
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
}

.brm-order-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--brm-muted);
    margin: 0;
}

.brm-order-select {
    padding: 10px 34px 10px 14px !important;
    background: var(--brm-light) !important;
    border: 1px solid var(--brm-border) !important;
    border-radius: var(--brm-radius-md) !important;
    font-size: 13px !important;
    font-weight: 500 !important;
    color: var(--brm-dark) !important;
    cursor: pointer;
    outline: none !important;
    transition: var(--brm-transition) !important;
}

.brm-order-select:focus {
    border-color: var(--brm-primary) !important;
    box-shadow: 0 0 0 3px rgba(213, 64, 34, 0.12) !important;
}

/* Categorías Nav */
.brm-categories-nav {
    margin-bottom: 18px;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
}

.brm-cat-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.brm-cat-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: #ffffff;
    border: 1px solid var(--brm-border);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    color: var(--brm-text);
    cursor: pointer;
    transition: var(--brm-transition);
    user-select: none;
    box-shadow: 0 1px 3px rgba(0,0,0,0.03);
}

.brm-cat-pill:hover {
    border-color: var(--brm-primary);
    color: var(--brm-primary);
    background: rgba(213, 64, 34, 0.04);
}

.brm-cat-pill.active {
    background: var(--brm-primary);
    border-color: var(--brm-primary);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(213, 64, 34, 0.25);
}

.brm-pill-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    border-radius: 50px;
    font-size: 11px;
    font-weight: 700;
    background: rgba(15, 23, 42, 0.08);
    color: inherit;
}

.brm-cat-pill.active .brm-pill-count {
    background: rgba(255, 255, 255, 0.25);
    color: #ffffff;
}

/* Tipo de Archivo Chips */
.brm-type-nav {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.brm-type-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--brm-muted);
}

.brm-type-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.brm-type-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: transparent;
    border: 1px solid var(--brm-border);
    border-radius: var(--brm-radius-sm);
    font-size: 12px;
    font-weight: 600;
    color: var(--brm-muted);
    cursor: pointer;
    transition: var(--brm-transition);
}

.brm-type-chip i {
    font-size: 13px;
}

.brm-type-chip:hover {
    color: var(--brm-dark);
    border-color: #cbd5e1;
    background: #f1f5f9;
}

.brm-type-chip.active {
    background: var(--brm-dark);
    border-color: var(--brm-dark);
    color: #ffffff;
}

/* Grid Wrapper & Loader */
.brm-grid-wrapper {
    position: relative;
    min-height: 240px;
}

.brm-loading-overlay {
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(4px);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--brm-radius-lg);
}

.brm-spinner-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--brm-primary);
    font-weight: 600;
    font-size: 14px;
}

.brm-spinner-box i {
    font-size: 32px;
}

/* CSS Grid de Tarjetas */
.brm-grid {
    display: grid;
    gap: 24px;
}

.brm-cols-1 .brm-grid {
    grid-template-columns: 1fr;
}

.brm-cols-2 .brm-grid {
    grid-template-columns: repeat(2, 1fr);
}

.brm-cols-3 .brm-grid {
    grid-template-columns: repeat(3, 1fr);
}

.brm-cols-4 .brm-grid {
    grid-template-columns: repeat(4, 1fr);
}

/* Tarjeta de Recurso */
.brm-card {
    display: flex;
    flex-direction: column;
}

.brm-card-inner {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--brm-card-bg);
    border: 1px solid var(--brm-border);
    border-radius: var(--brm-radius-lg);
    overflow: hidden;
    box-shadow: var(--brm-shadow-sm);
    transition: var(--brm-transition);
}

.brm-card-inner:hover {
    transform: translateY(-5px);
    box-shadow: var(--brm-shadow-md);
    border-color: #cbd5e1;
}

/* Media de Tarjeta */
.brm-card-media {
    position: relative;
    width: 100%;
    height: 175px;
    overflow: hidden;
    background: #f1f5f9;
}

.brm-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.brm-card-inner:hover .brm-card-img {
    transform: scale(1.04);
}

.brm-card-icon-banner {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 52px;
    color: #ffffff;
    transition: var(--brm-transition);
}

/* Fondos por tipo de archivo */
.brm-bg-pdf { background: linear-gradient(135deg, #ef4444 0%, #b91c1c 100%); }
.brm-bg-image { background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%); }
.brm-bg-video { background: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%); }
.brm-bg-audio { background: linear-gradient(135deg, #ec4899 0%, #be185d 100%); }
.brm-bg-word { background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%); }
.brm-bg-excel { background: linear-gradient(135deg, #10b981 0%, #047857 100%); }
.brm-bg-ppt { background: linear-gradient(135deg, #f97316 0%, #c2410c 100%); }
.brm-bg-zip { background: linear-gradient(135deg, #f59e0b 0%, #b45309 100%); }
.brm-bg-doc { background: linear-gradient(135deg, #64748b 0%, #334155 100%); }

/* Badges de Formato */
.brm-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    z-index: 2;
    text-transform: uppercase;
}

.brm-badge-pdf { background: #ef4444; }
.brm-badge-image { background: #3b82f6; }
.brm-badge-video { background: #8b5cf6; }
.brm-badge-audio { background: #ec4899; }
.brm-badge-word { background: #2563eb; }
.brm-badge-excel { background: #10b981; }
.brm-badge-ppt { background: #f97316; }
.brm-badge-zip { background: #f59e0b; }
.brm-badge-doc { background: #475569; }

/* Botón rápido Vista Previa en imagen */
.brm-quick-preview-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(4px);
    border: none;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    cursor: pointer;
    transition: var(--brm-transition);
    opacity: 0;
    transform: scale(0.85);
    z-index: 2;
}

.brm-card-inner:hover .brm-quick-preview-btn {
    opacity: 1;
    transform: scale(1);
}

.brm-quick-preview-btn:hover {
    background: var(--brm-primary);
    transform: scale(1.1);
}

/* Cuerpo de la tarjeta */
.brm-card-body {
    padding: 18px 20px 14px 20px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.brm-card-category {
    font-size: 11px;
    font-weight: 700;
    color: var(--brm-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.brm-card-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--brm-dark);
    margin: 0 0 8px 0;
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.brm-card-excerpt {
    font-size: 13px;
    color: var(--brm-muted);
    line-height: 1.5;
    margin: 0 0 14px 0;
    flex-grow: 1;
}

/* Metadatos */
.brm-card-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 12px;
    color: var(--brm-muted);
    padding-top: 10px;
    border-top: 1px dashed var(--brm-border);
}

.brm-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.brm-meta-item i {
    font-size: 11px;
    color: #94a3b8;
}

/* Footer & Acciones */
.brm-card-footer {
    padding: 14px 20px 18px 20px;
    background: #fafafa;
    border-top: 1px solid var(--brm-border);
    display: flex;
    align-items: center;
    gap: 10px;
}

.brm-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    border-radius: var(--brm-radius-md);
    cursor: pointer;
    transition: var(--brm-transition);
    text-decoration: none !important;
    border: none;
    line-height: 1;
    padding: 10px 18px;
}

.brm-btn-download {
    flex: 1;
    background: var(--brm-primary);
    color: #ffffff !important;
    box-shadow: 0 2px 8px rgba(213, 64, 34, 0.2);
}

.brm-btn-download:hover {
    background: var(--brm-primary-hover);
    box-shadow: 0 4px 14px rgba(213, 64, 34, 0.35);
    transform: translateY(-1px);
    color: #ffffff !important;
}

.brm-btn-preview {
    width: 38px;
    height: 38px;
    padding: 0;
    background: #ffffff;
    border: 1px solid var(--brm-border);
    color: var(--brm-dark);
    border-radius: var(--brm-radius-md);
}

.brm-btn-preview:hover {
    border-color: var(--brm-primary);
    color: var(--brm-primary);
    background: rgba(213, 64, 34, 0.05);
}

.brm-btn-disabled {
    flex: 1;
    background: #e2e8f0;
    color: #94a3b8;
    cursor: not-allowed;
    text-align: center;
    padding: 10px 14px;
    border-radius: var(--brm-radius-md);
    font-size: 13px;
    font-weight: 500;
}

/* Estado Vacío (No Results) */
.brm-no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    background: #ffffff;
    border: 1px dashed var(--brm-border);
    border-radius: var(--brm-radius-lg);
}

.brm-empty-icon {
    font-size: 48px;
    color: #cbd5e1;
    margin-bottom: 16px;
}

.brm-no-results h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--brm-dark);
    margin: 0 0 8px 0;
}

.brm-no-results p {
    font-size: 14px;
    color: var(--brm-muted);
    margin: 0 0 20px 0;
}

.brm-reset-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    background: var(--brm-dark);
    color: #ffffff;
    border: none;
    border-radius: var(--brm-radius-md);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--brm-transition);
}

.brm-reset-btn:hover {
    background: var(--brm-primary);
}

/* Paginación */
.brm-pagination-wrapper {
    margin-top: 32px;
    display: flex;
    justify-content: center;
}

.brm-pagination-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
}

.brm-page-btn, .brm-page-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 12px;
    border-radius: var(--brm-radius-md);
    background: #ffffff;
    border: 1px solid var(--brm-border);
    font-size: 13px;
    font-weight: 600;
    color: var(--brm-text);
    cursor: pointer;
    transition: var(--brm-transition);
}

.brm-page-btn:hover, .brm-page-num:hover {
    border-color: var(--brm-primary);
    color: var(--brm-primary);
}

.brm-page-num.active {
    background: var(--brm-primary);
    border-color: var(--brm-primary);
    color: #ffffff;
    box-shadow: 0 3px 10px rgba(213, 64, 34, 0.25);
}

.brm-page-dots {
    color: var(--brm-muted);
    padding: 0 4px;
}

/* MODAL LIGHTBOX UNIVERSAL */
.brm-modal {
    position: fixed;
    inset: 0;
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.brm-modal.active {
    opacity: 1;
    pointer-events: auto;
}

.brm-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.82);
    backdrop-filter: blur(8px);
}

.brm-modal-dialog {
    position: relative;
    width: 100%;
    max-width: 950px;
    max-height: 90vh;
    background: #ffffff;
    border-radius: var(--brm-radius-lg);
    box-shadow: var(--brm-shadow-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: scale(0.95);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 2;
}

.brm-modal.active .brm-modal-dialog {
    transform: scale(1);
}

.brm-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: #ffffff;
    border-bottom: 1px solid var(--brm-border);
}

.brm-modal-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--brm-dark);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding-right: 16px;
}

.brm-modal-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brm-modal-download-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--brm-primary);
    color: #ffffff !important;
    border-radius: var(--brm-radius-sm);
    font-size: 12px;
    font-weight: 600;
    text-decoration: none !important;
    transition: var(--brm-transition);
}

.brm-modal-download-btn:hover {
    background: var(--brm-primary-hover);
}

.brm-modal-close {
    background: transparent;
    border: none;
    color: var(--brm-muted);
    font-size: 18px;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--brm-transition);
}

.brm-modal-close:hover {
    background: #f1f5f9;
    color: var(--brm-dark);
}

.brm-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: #0b1120;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 480px;
}

.brm-modal-body iframe {
    width: 100%;
    height: 70vh;
    border: none;
    border-radius: var(--brm-radius-sm);
    background: #ffffff;
}

.brm-modal-body img {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: var(--brm-radius-sm);
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.brm-modal-body video {
    width: 100%;
    max-height: 70vh;
    border-radius: var(--brm-radius-sm);
    outline: none;
}

.brm-video-embed-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
}

.brm-video-embed-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* RESPONSIVE DESIGN */
@media (max-width: 1024px) {
    .brm-cols-4 .brm-grid,
    .brm-cols-3 .brm-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .brm-cols-4 .brm-grid,
    .brm-cols-3 .brm-grid,
    .brm-cols-2 .brm-grid {
        grid-template-columns: 1fr;
    }

    .brm-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .brm-search-box {
        flex: 1 1 100%;
    }

    .brm-order-box {
        justify-content: space-between;
    }

    .brm-modal {
        padding: 10px;
    }

    .brm-modal-body {
        min-height: 320px;
        padding: 12px;
    }

    .brm-modal-body iframe,
    .brm-modal-body video {
        height: 55vh;
    }
}