/**
 * Estilos del Frontend - v4.1.0
 * NUEVO: Estado vacío cuando no hay carpeta seleccionada
 * @package Galeria_WhatsApp
 */

/* ============================================
   🆕 ESTADO VACÍO (sin carpeta seleccionada)
   ============================================ */

.empty-state {
    text-align: center;
    padding: 80px 30px;
    grid-column: 1 / -1;
    background: linear-gradient(135deg, #f8fafc 0%, #e9ecef 100%);
    border-radius: 16px;
    border: 2px dashed #cbd5e0;
    margin: 20px 0;
}

.empty-state-icon {
    font-size: 64px;
    margin-bottom: 20px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.empty-state-title {
    font-size: 22px;
    font-weight: 600;
    color: #2d3748;
    margin: 0 0 12px 0;
}

.empty-state-subtitle {
    font-size: 16px;
    color: #718096;
    margin: 0;
    max-width: 400px;
    margin: 0 auto;
}

/* Responsive estado vacío */
@media (max-width: 768px) {
    .empty-state {
        padding: 50px 20px;
    }
    
    .empty-state-icon {
        font-size: 48px;
    }
    
    .empty-state-title {
        font-size: 18px;
    }
    
    .empty-state-subtitle {
        font-size: 14px;
    }
}

/* Mensaje cuando no hay carpetas disponibles */
.no-folders {
    text-align: center;
    padding: 20px;
    color: #a0aec0;
    font-size: 15px;
    font-style: italic;
}

/* ============================================
   AJUSTE: Botón de limpiar búsqueda
   ============================================ */

.clear-search-btn {
    display: block;
    margin: 20px auto;
    padding: 14px 32px;
    background: linear-gradient(135deg, #4299e1, #2b6cb0);
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    font-size: 15px;
    box-shadow: 0 8px 16px rgba(66, 153, 225, 0.3);
    transition: all 0.3s ease;
}

.clear-search-btn:hover {
    background: linear-gradient(135deg, #2b6cb0, #2c5282);
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(66, 153, 225, 0.4);
}

.clear-search-btn:active {
    transform: translateY(0);
}

/* ============================================
   RESTO DE ESTILOS ORIGINALES
   ============================================ */

body .galeria-whatsapp-frontend {
    max-width: 1200px;
    margin: 30px auto;
    padding: 40px;
    background: #ffffff;
    border-radius: 24px;
    box-shadow: 0 30px 80px rgba(15, 23, 42, 0.1);
}

.galeria-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}

.galeria-header-text h2 {
    margin: 0;
    font-size: 32px;
    color: #1a202c;
}

.galeria-header-text p {
    margin: 8px 0 0 0;
    color: #718096;
    font-size: 16px;
}

.galeria-search-box {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    justify-content: flex-end;
    min-width: 280px;
}

.galeria-search-box input {
    padding: 12px 16px;
    font-size: 16px;
    border: 2px solid #dde1e7;
    border-radius: 10px;
    width: 100%;
    max-width: 320px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.galeria-search-box input:focus {
    outline: none;
    border-color: #2271b1;
    box-shadow: 0 0 0 3px rgba(34, 113, 177, 0.15);
}

.galeria-search-box button {
    padding: 12px 26px;
    font-size: 16px;
    background: linear-gradient(135deg, #2271b1, #135e96);
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: bold;
    box-shadow: 0 10px 20px rgba(19, 94, 150, 0.25);
    transition: transform 0.2s, box-shadow 0.2s;
    white-space: nowrap;
}

.galeria-search-box button:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 25px rgba(19, 94, 150, 0.35);
}

.galeria-folder-filter {
    display: flex;
    justify-content: flex-start;
    gap: 12px;
    margin-bottom: 25px;
    flex-wrap: wrap;
    overflow-x: auto;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
}

.galeria-folder-btn {
    padding: 10px 18px;
    background: #f5f7fb;
    border: 1px solid #e4e9f2;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 500;
    color: #4a5568;
    transition: all 0.25s ease;
    box-shadow: 0 6px 12px rgba(58, 66, 86, 0.08);
    white-space: nowrap;
    flex-shrink: 0;
}

.galeria-folder-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 18px rgba(58, 66, 86, 0.12);
}

.galeria-folder-btn.active {
    background: linear-gradient(135deg, #1d976c, #2abf89);
    color: white;
    border-color: transparent;
    box-shadow: 0 12px 24px rgba(45, 162, 120, 0.35);
}

.galeria-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 30px;
    align-items: start;
}

.galeria-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    background: white;
    display: flex;
    flex-direction: column;
}

.galeria-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
}

.galeria-item.highlight {
    animation: highlight-pulse 1s ease-in-out;
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(34, 113, 177, 0.25);
}

@keyframes highlight-pulse {
    0%, 100% {
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }
    50% {
        box-shadow: 0 0 20px 5px rgba(34, 113, 177, 0.6);
    }
}

.galeria-image-wrapper {
    position: relative;
    width: 100%;
    min-height: 200px;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    box-sizing: border-box;
    overflow: hidden;
}

.galeria-image-wrapper img {
    width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: contain;
    display: block;
    object-position: center;
    border-radius: 4px;
}

.galeria-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0) 60%);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    padding: 12px;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

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

.galeria-overlay .galeria-id {
    color: white;
    font-size: 16px;
    font-weight: bold;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.8);
    background: rgba(0, 0, 0, 0.7);
    padding: 6px 12px;
    border-radius: 6px;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.2s ease;
}

.galeria-item:hover .galeria-overlay .galeria-id {
    transform: translateY(2px);
}

.galeria-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 18px;
    border-top: 1px solid #f0f2f8;
    font-size: 14px;
    gap: 10px;
    background: #fafbfc;
}

.galeria-meta-left {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.galeria-folder-tag {
    background: rgba(34, 113, 177, 0.1);
    color: #1d4ed8;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    width: fit-content;
}

.galeria-date {
    color: #6b7280;
    font-size: 13px;
}

.galeria-buttons-row {
    display: flex;
    gap: 10px;
    padding: 14px 16px;
    background: #ffffff;
    border-top: 1px solid #e8e8e8;
    flex-wrap: wrap;
}

.galeria-buttons-row .galeria-copy-btn,
.galeria-buttons-row .galeria-whatsapp-btn {
    flex: 1;
    min-width: 120px;
}

.galeria-copy-btn {
    background: linear-gradient(135deg, #4a90e2, #357abd);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 11px 18px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 8px rgba(74, 144, 226, 0.3);
    white-space: nowrap;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.galeria-copy-btn:hover {
    background: linear-gradient(135deg, #357abd, #2a5a8a);
    box-shadow: 0 6px 12px rgba(74, 144, 226, 0.4);
    transform: translateY(-2px);
}

.galeria-copy-btn:active {
    transform: scale(0.98);
}

.galeria-copy-btn.copied {
    background: linear-gradient(135deg, #34d399, #10b981);
    box-shadow: 0 4px 8px rgba(16, 185, 129, 0.3);
    color: white;
}

.galeria-whatsapp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, #25D366, #128C7E);
    color: white;
    padding: 11px 18px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.2s;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.35);
    white-space: nowrap;
    border: none;
    cursor: pointer;
    text-align: center;
}

.galeria-whatsapp-btn:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(18, 140, 126, 0.45);
    text-decoration: none;
}

.galeria-whatsapp-btn:active {
    transform: scale(0.98);
}

.galeria-whatsapp-btn svg {
    flex-shrink: 0;
}

.no-photos,
.no-results {
    text-align: center;
    padding: 40px;
    color: #666;
    font-size: 18px;
    grid-column: 1 / -1;
}

.no-results {
    color: #dc3232;
}

.error-msg {
    color: #dc3232;
    text-align: center;
    padding: 20px;
}

.error-container {
    text-align: center;
    padding: 30px;
    grid-column: 1 / -1;
}

.retry-btn {
    padding: 10px 20px;
    background: #2271b1;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    font-size: 14px;
}

.retry-btn:hover {
    background: #135e96;
}

.loading-spinner {
    text-align: center;
    padding: 40px;
    color: #666;
    font-size: 16px;
    grid-column: 1 / -1;
}

/* ============================================
   📱 RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
    .galeria-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        gap: 20px;
    }
}

@media (max-width: 768px) {
    body .galeria-whatsapp-frontend {
        padding: 20px;
        margin: 15px;
        border-radius: 16px;
        box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
    }
    
    .galeria-header {
        flex-direction: column;
        align-items: stretch;
        gap: 15px;
    }
    
    .galeria-header-text h2 {
        font-size: 24px;
    }
    
    .galeria-header-text p {
        font-size: 14px;
    }
    
    .galeria-search-box {
        width: 100%;
        justify-content: flex-start;
        min-width: unset;
        gap: 8px;
    }
    
    .galeria-search-box input {
        max-width: 100%;
        flex: 1;
        font-size: 16px;
    }
    
    .galeria-search-box button {
        padding: 12px 20px;
        font-size: 14px;
    }
    
    .galeria-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 15px;
    }
    
    .galeria-item {
        border-radius: 10px;
    }
    
    .galeria-image-wrapper {
        min-height: 180px;
        padding: 8px;
    }
    
    .galeria-image-wrapper img {
        max-height: 350px;
    }
    
    .galeria-overlay {
        opacity: 0 !important;
        background: linear-gradient(to bottom, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0) 60%);
        padding: 10px;
        pointer-events: auto;
    }
    
    .galeria-item.touched .galeria-overlay {
        opacity: 1 !important;
    }
    
    .galeria-overlay .galeria-id {
        font-size: 13px;
        padding: 5px 10px;
        background: rgba(0, 0, 0, 0.7);
        backdrop-filter: blur(8px);
    }
    
    .galeria-meta {
        padding: 12px 14px;
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }
    
    .galeria-folder-tag {
        font-size: 12px;
        padding: 5px 10px;
    }
    
    .galeria-date {
        font-size: 12px;
    }
    
    .galeria-buttons-row {
        padding: 12px 14px;
        gap: 8px;
    }
    
    .galeria-buttons-row .galeria-copy-btn,
    .galeria-buttons-row .galeria-whatsapp-btn {
        flex: 1;
        min-width: 100px;
        padding: 12px 12px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    body .galeria-whatsapp-frontend {
        padding: 16px;
        margin: 10px;
    }
    
    .galeria-header-text h2 {
        font-size: 22px;
    }
    
    .galeria-search-box {
        flex-direction: column;
    }
    
    .galeria-search-box input,
    .galeria-search-box button {
        width: 100%;
    }
    
    .galeria-folder-btn {
        padding: 8px 14px;
        font-size: 13px;
    }
    
    .galeria-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .galeria-image-wrapper {
        min-height: 140px;
        padding: 6px;
    }
    
    .galeria-overlay .galeria-id {
        font-size: 11px;
        padding: 4px 8px;
    }
    
    .galeria-meta {
        padding: 10px 12px;
    }
    
    .galeria-folder-tag {
        font-size: 11px;
        padding: 4px 8px;
    }
    
    .galeria-buttons-row {
        padding: 10px 12px;
        gap: 6px;
    }
    
    .galeria-buttons-row .galeria-copy-btn,
    .galeria-buttons-row .galeria-whatsapp-btn {
        padding: 11px 10px;
        font-size: 12px;
        min-width: 80px;
    }
    
    .galeria-whatsapp-btn svg {
        width: 14px;
        height: 14px;
    }
}

@media (max-width: 768px) {
    button,
    .galeria-copy-btn,
    .galeria-whatsapp-btn,
    .galeria-folder-btn {
        min-height: 44px;
        position: relative;
    }
    
    .galeria-search-box input {
        font-size: 16px;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}