/**
 * WP Galería Moderna - Frontend Styles
 * Incluye Sistema de 4 Temas, Masonry, Grid, Filtros y Lightbox Inmersivo
 */

/* ==========================================================================
   1. SISTEMA DE VARIABLES POR TEMA (CSS CUSTOM PROPERTIES)
   ========================================================================== */

/* 1.1. Tema por defecto: Dark Elegance */
.gal-container,
[data-gal-theme="dark"] {
    --gal-bg: #0b0f19;
    --gal-surface: #111827;
    --gal-card-bg: #151d2f;
    --gal-card-border: #1f293d;
    --gal-card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
    --gal-text-primary: #f8fafc;
    --gal-text-secondary: #94a3b8;
    --gal-text-muted: #64748b;
    --gal-accent: #38bdf8;
    --gal-accent-hover: #0ea5e9;
    --gal-accent-glow: rgba(56, 189, 248, 0.3);
    --gal-pill-bg: #1e293b;
    --gal-pill-text: #94a3b8;
    --gal-pill-active-bg: #38bdf8;
    --gal-pill-active-text: #0b0f19;
    --gal-controls-bg: rgba(17, 24, 39, 0.85);
    --gal-controls-border: #1f2937;
    --gal-overlay-bg: rgba(7, 10, 19, 0.95);
    --gal-thumb-border: #334155;
    --gal-glass-filter: none;
}

/* 1.2. Tema: Clean Minimal */
[data-gal-theme="light"] {
    --gal-bg: #f8fafc;
    --gal-surface: #ffffff;
    --gal-card-bg: #ffffff;
    --gal-card-border: #e2e8f0;
    --gal-card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --gal-text-primary: #0f172a;
    --gal-text-secondary: #475569;
    --gal-text-muted: #94a3b8;
    --gal-accent: #4f46e5;
    --gal-accent-hover: #4338ca;
    --gal-accent-glow: rgba(79, 70, 229, 0.25);
    --gal-pill-bg: #f1f5f9;
    --gal-pill-text: #475569;
    --gal-pill-active-bg: #4f46e5;
    --gal-pill-active-text: #ffffff;
    --gal-controls-bg: rgba(255, 255, 255, 0.9);
    --gal-controls-border: #e2e8f0;
    --gal-overlay-bg: rgba(15, 23, 42, 0.92);
    --gal-thumb-border: #cbd5e1;
    --gal-glass-filter: none;
}

/* 1.3. Tema: Glassmorphism */
[data-gal-theme="glass"] {
    --gal-bg: radial-gradient(ellipse at 20% 0%, #2e1065 0%, #0f172a 60%, #020617 100%);
    --gal-surface: rgba(255, 255, 255, 0.05);
    --gal-card-bg: rgba(255, 255, 255, 0.07);
    --gal-card-border: rgba(255, 255, 255, 0.15);
    --gal-card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --gal-text-primary: #ffffff;
    --gal-text-secondary: #cbd5e1;
    --gal-text-muted: #94a3b8;
    --gal-accent: #818cf8;
    --gal-accent-hover: #a5b4fc;
    --gal-accent-glow: rgba(129, 140, 248, 0.4);
    --gal-pill-bg: rgba(255, 255, 255, 0.08);
    --gal-pill-text: #e2e8f0;
    --gal-pill-active-bg: #818cf8;
    --gal-pill-active-text: #0f172a;
    --gal-controls-bg: rgba(255, 255, 255, 0.12);
    --gal-controls-border: rgba(255, 255, 255, 0.2);
    --gal-overlay-bg: rgba(10, 15, 29, 0.94);
    --gal-thumb-border: rgba(255, 255, 255, 0.25);
    --gal-glass-filter: blur(16px);
}

/* 1.4. Tema: Midnight Neon */
[data-gal-theme="neon"] {
    --gal-bg: #050508;
    --gal-surface: #0a0a12;
    --gal-card-bg: #0e0e1a;
    --gal-card-border: rgba(236, 72, 153, 0.35);
    --gal-card-shadow: 0 0 25px rgba(236, 72, 153, 0.25), inset 0 0 15px rgba(168, 85, 247, 0.1);
    --gal-text-primary: #ffffff;
    --gal-text-secondary: #d8b4fe;
    --gal-text-muted: #a855f7;
    --gal-accent: #ec4899;
    --gal-accent-hover: #f472b6;
    --gal-accent-glow: 0 0 15px #ec4899;
    --gal-pill-bg: #141424;
    --gal-pill-text: #d8b4fe;
    --gal-pill-active-bg: #ec4899;
    --gal-pill-active-text: #ffffff;
    --gal-controls-bg: rgba(14, 14, 26, 0.9);
    --gal-controls-border: #ec4899;
    --gal-overlay-bg: rgba(3, 3, 6, 0.97);
    --gal-thumb-border: #a855f7;
    --gal-glass-filter: none;
}

/* ==========================================================================
   2. CONTENEDOR PRINCIPAL Y TIPOGRAFÍA
   ========================================================================== */

.gal-container {
    background: var(--gal-bg);
    color: var(--gal-text-primary);
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    padding: 36px 24px;
    border-radius: 20px;
    box-shadow: var(--gal-card-shadow);
    transition: background 0.35s ease, color 0.35s ease;
    position: relative;
    overflow: hidden;
    margin: 30px auto;
    max-width: 1380px;
    box-sizing: border-box;
}

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

/* 2.0. Botón de Regreso a Colecciones */
.gal-back-bar {
    margin-bottom: 22px;
}

.gal-btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: var(--gal-surface);
    color: var(--gal-text-primary) !important;
    border: 1px solid var(--gal-card-border);
    border-radius: 9999px;
    font-size: 13px;
    font-weight: 700;
    text-decoration: none !important;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    backdrop-filter: var(--gal-glass-filter);
    -webkit-backdrop-filter: var(--gal-glass-filter);
}

.gal-btn-back svg {
    stroke: currentColor;
    transition: transform 0.2s ease;
}

.gal-btn-back:hover {
    background: var(--gal-accent);
    color: var(--gal-pill-active-text) !important;
    border-color: var(--gal-accent);
    box-shadow: 0 4px 15px var(--gal-accent-glow);
    transform: translateX(-4px);
}

.gal-btn-back:hover svg {
    transform: translateX(-2px);
}

/* 2.1. Cabecera de la Galería */
.gal-header {
    margin-bottom: 30px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.gal-header-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 16px;
}

.gal-title-box {
    max-width: 800px;
}

.gal-category-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 9999px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #fff;
    margin-bottom: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.gal-title {
    font-size: 32px;
    font-weight: 800;
    line-height: 1.25;
    margin: 0 0 10px 0;
    color: var(--gal-text-primary);
    letter-spacing: -0.02em;
}

.gal-description {
    font-size: 15px;
    line-height: 1.6;
    color: var(--gal-text-secondary);
    margin: 0;
}

/* 2.2. Barra de Herramientas y Selectores Flotantes */
.gal-controls-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    padding: 14px 18px;
    background: var(--gal-controls-bg);
    border: 1px solid var(--gal-controls-border);
    border-radius: 14px;
    backdrop-filter: var(--gal-glass-filter, blur(10px));
    -webkit-backdrop-filter: var(--gal-glass-filter, blur(10px));
    margin-bottom: 24px;
    transition: all 0.3s ease;
}

.gal-controls-group {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

/* 2.3. Selector de Temas Flotante */
.gal-theme-switcher {
    display: inline-flex;
    align-items: center;
    background: var(--gal-surface);
    border: 1px solid var(--gal-card-border);
    border-radius: 9999px;
    padding: 3px;
    gap: 2px;
}

.gal-theme-btn {
    border: none;
    background: transparent;
    color: var(--gal-text-secondary);
    padding: 6px 12px;
    border-radius: 9999px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
}

.gal-theme-btn:hover {
    color: var(--gal-text-primary);
}

.gal-theme-btn.active {
    background: var(--gal-accent);
    color: var(--gal-pill-active-text);
    box-shadow: 0 2px 10px var(--gal-accent-glow);
}

/* 2.4. Conmutador de Disposición (Masonry / Grid) */
.gal-layout-switcher {
    display: inline-flex;
    align-items: center;
    background: var(--gal-surface);
    border: 1px solid var(--gal-card-border);
    border-radius: 8px;
    padding: 3px;
}

.gal-layout-btn {
    border: none;
    background: transparent;
    color: var(--gal-text-secondary);
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    transition: all 0.2s ease;
}

.gal-layout-btn svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.gal-layout-btn:hover {
    color: var(--gal-text-primary);
}

.gal-layout-btn.active {
    background: var(--gal-accent);
    color: var(--gal-pill-active-text);
}

/* 2.5. Buscador en Vivo y Píldoras de Categoría */
.gal-search-box {
    position: relative;
    min-width: 220px;
}

.gal-search-input {
    width: 100%;
    padding: 8px 12px 8px 34px;
    border-radius: 8px;
    border: 1px solid var(--gal-card-border);
    background: var(--gal-surface);
    color: var(--gal-text-primary);
    font-size: 13px;
    outline: none;
    transition: all 0.2s ease;
}

.gal-search-input:focus {
    border-color: var(--gal-accent);
    box-shadow: 0 0 0 2px var(--gal-accent-glow);
}

.gal-search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    fill: var(--gal-text-muted);
    pointer-events: none;
}

.gal-filter-pills {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.gal-pill {
    padding: 6px 14px;
    border-radius: 9999px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    background: var(--gal-pill-bg);
    color: var(--gal-pill-text);
    border: 1px solid transparent;
    transition: all 0.2s ease;
    user-select: none;
}

.gal-pill:hover {
    border-color: var(--gal-accent);
    color: var(--gal-text-primary);
}

.gal-pill.active {
    background: var(--gal-pill-active-bg);
    color: var(--gal-pill-active-text);
    box-shadow: 0 2px 10px var(--gal-accent-glow);
}

/* ==========================================================================
   3. DISPOSICIONES: MASONRY & GRID
   ========================================================================== */

/* 3.1. Masonry Fluido (Pinterest Style) */
.gal-layout-masonry {
    column-count: 3;
    column-gap: 20px;
}

.gal-columns-2 .gal-layout-masonry { column-count: 2; }
.gal-columns-3 .gal-layout-masonry { column-count: 3; }
.gal-columns-4 .gal-layout-masonry { column-count: 4; }
.gal-columns-5 .gal-layout-masonry { column-count: 5; }

@media (max-width: 1100px) {
    .gal-layout-masonry { column-count: 3 !important; }
}
@media (max-width: 800px) {
    .gal-layout-masonry { column-count: 2 !important; }
}
@media (max-width: 520px) {
    .gal-layout-masonry { column-count: 1 !important; }
}

.gal-layout-masonry .gal-item {
    break-inside: avoid;
    margin-bottom: 20px;
    display: inline-block;
    width: 100%;
}

.gal-layout-masonry .gal-item-thumb {
    width: 100%;
    height: auto;
    background: transparent;
}

.gal-layout-masonry .gal-item-thumb img {
    width: 100%;
    height: auto !important;
    display: block;
    object-fit: cover;
}

/* 3.2. Cuadrícula Uniforme (Grid Simétrico) */
.gal-layout-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.gal-columns-2 .gal-layout-grid { grid-template-columns: repeat(2, 1fr); }
.gal-columns-3 .gal-layout-grid { grid-template-columns: repeat(3, 1fr); }
.gal-columns-4 .gal-layout-grid { grid-template-columns: repeat(4, 1fr); }
.gal-columns-5 .gal-layout-grid { grid-template-columns: repeat(5, 1fr); }

@media (max-width: 1100px) {
    .gal-layout-grid { grid-template-columns: repeat(3, 1fr) !important; }
}
@media (max-width: 800px) {
    .gal-layout-grid { grid-template-columns: repeat(2, 1fr) !important; }
}
@media (max-width: 520px) {
    .gal-layout-grid { grid-template-columns: 1fr !important; }
}

.gal-layout-grid .gal-item-thumb {
    aspect-ratio: 1 / 1;
    width: 100%;
    background: transparent;
}

.gal-layout-grid .gal-item-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* 3.3. Tarjeta de Foto (.gal-item) */
.gal-item {
    position: relative;
    background: var(--gal-card-bg);
    border: 1px solid var(--gal-card-border);
    border-radius: 14px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease, border-color 0.25s ease;
    backdrop-filter: var(--gal-glass-filter);
    -webkit-backdrop-filter: var(--gal-glass-filter);
}

.gal-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--gal-card-shadow), 0 0 20px var(--gal-accent-glow);
    border-color: var(--gal-accent);
}

.gal-item-thumb {
    width: 100%;
    overflow: hidden;
    position: relative;
    background: transparent;
}

.gal-item-thumb img {
    width: 100%;
    max-width: 100%;
    height: auto;
    display: block;
    transition: transform 0.4s ease;
}

.gal-item:hover .gal-item-thumb img {
    transform: scale(1.05);
}

/* Overlay en hover */
.gal-item-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.2) 50%, transparent 100%);
    opacity: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 18px;
    transition: opacity 0.3s ease;
}

.gal-item:hover .gal-item-overlay {
    opacity: 1;
}

.gal-item-title {
    font-size: 15px;
    font-weight: 700;
    color: #ffffff;
    margin: 0 0 4px 0;
    line-height: 1.3;
}

.gal-item-desc {
    font-size: 12px;
    color: #cbd5e1;
    margin: 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.gal-zoom-indicator {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.25s ease;
}

.gal-item:hover .gal-zoom-indicator {
    opacity: 1;
    transform: scale(1);
}

/* ==========================================================================
   4. VITRINA DE ÁLBUMES [galerias_portal]
   ========================================================================== */

.gal-portal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 26px;
    margin-top: 20px;
}

.gal-album-card {
    background: var(--gal-card-bg);
    border: 1px solid var(--gal-card-border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    text-decoration: none !important;
    display: flex;
    flex-direction: column;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    backdrop-filter: var(--gal-glass-filter);
    -webkit-backdrop-filter: var(--gal-glass-filter);
}

.gal-album-card:hover {
    transform: translateY(-6px);
    border-color: var(--gal-accent);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25), 0 0 25px var(--gal-accent-glow);
}

.gal-album-cover {
    width: 100%;
    height: 220px;
    position: relative;
    overflow: hidden;
    background: var(--gal-surface);
}

.gal-album-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.gal-album-card:hover .gal-album-cover img {
    transform: scale(1.06);
}

.gal-album-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    padding: 4px 10px;
    border-radius: 9999px;
    font-size: 11px;
    font-weight: 700;
    color: #fff;
    background-color: var(--badge-color, #6366f1);
}

.gal-album-count {
    position: absolute;
    bottom: 14px;
    right: 14px;
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 700;
    color: #fff;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.gal-album-info {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.gal-album-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--gal-text-primary);
    margin: 0 0 8px 0;
    line-height: 1.3;
}

.gal-album-desc {
    font-size: 13px;
    color: var(--gal-text-secondary);
    margin: 0 0 16px 0;
    line-height: 1.5;
    flex-grow: 1;
}

.gal-album-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--gal-card-border);
    padding-top: 12px;
    font-size: 12px;
    color: var(--gal-text-muted);
}

.gal-album-btn {
    font-weight: 700;
    color: var(--gal-accent);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* ==========================================================================
   5. VISOR LIGHTBOX INMERSIVO
   ========================================================================== */

.gal-lightbox {
    position: fixed;
    inset: 0;
    z-index: 999999;
    background: var(--gal-overlay-bg);
    display: none;
    opacity: 0;
    transition: opacity 0.25s ease;
    flex-direction: column;
    user-select: none;
}

.gal-lightbox.is-open {
    display: flex;
    opacity: 1;
}

/* 5.1. Barra Superior del Lightbox */
.gal-lightbox-toolbar {
    height: 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(12px);
    z-index: 10;
}

.gal-lightbox-counter {
    font-size: 14px;
    font-weight: 600;
    color: #e2e8f0;
}

.gal-lightbox-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.gal-lb-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #ffffff;
    width: 38px;
    height: 38px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.gal-lb-btn svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.gal-lb-btn:hover {
    background: var(--gal-accent);
    color: #0b0f19;
    transform: scale(1.05);
}

.gal-lb-close:hover {
    background: #ef4444;
    color: #fff;
}

/* 5.2. Escenario Central */
.gal-lightbox-stage {
    flex-grow: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    touch-action: pan-y;
}

.gal-lightbox-image-wrap {
    max-width: 90vw;
    max-height: 75vh;
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.gal-lightbox-image {
    max-width: 100%;
    max-height: 75vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    pointer-events: auto;
}

/* Flechas Flotantes */
.gal-lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: none;
    color: #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5;
    transition: all 0.2s ease;
}

.gal-lightbox-nav:hover {
    background: var(--gal-accent);
    color: #0b0f19;
    transform: translateY(-50%) scale(1.1);
}

.gal-lightbox-prev { left: 24px; }
.gal-lightbox-next { right: 24px; }

/* 5.3. Barra Inferior con Título y Miniaturas */
.gal-lightbox-bottom {
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(16px);
    padding: 12px 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 10;
}

.gal-lightbox-info {
    text-align: center;
}

.gal-lightbox-title {
    font-size: 15px;
    font-weight: 700;
    color: #ffffff;
    margin: 0;
}

.gal-lightbox-desc {
    font-size: 12px;
    color: #cbd5e1;
    margin: 2px 0 0 0;
}

/* Tira de Miniaturas */
.gal-lightbox-thumbs {
    display: flex;
    justify-content: center;
    gap: 8px;
    overflow-x: auto;
    padding: 4px 0;
    scrollbar-width: thin;
}

.gal-lightbox-thumb {
    width: 50px;
    height: 50px;
    border-radius: 6px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    opacity: 0.5;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.gal-lightbox-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.gal-lightbox-thumb:hover {
    opacity: 0.85;
}

.gal-lightbox-thumb.active {
    opacity: 1;
    border-color: var(--gal-accent);
    box-shadow: 0 0 10px var(--gal-accent);
}