/* ============================================
   PANEL DE ACTIVIDAD MEJORADO
   ============================================ */

.activity-panel-improved {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.activity-header {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid #e2e8f0;
}

.activity-header h3 {
    margin: 0;
}

.activity-filters {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: stretch;
}

.activity-filters .filter-select {
    padding: 10px 12px;
    height: 42px;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    font-size: 14px;
    background: white;
    cursor: pointer;
    transition: all 0.2s;
    box-sizing: border-box;
    line-height: normal;
}

.activity-filters .search-bar-container {
    flex: 1;
    min-width: 250px;
    max-width: 400px;
    position: relative;
    display: flex;
    align-items: center;
}

.activity-filters .search-bar-container input {
    height: 42px !important;
    padding: 10px 35px 10px 12px !important;
    box-sizing: border-box !important;
    line-height: normal !important;
    margin: 0 !important;
    border: 1px solid #cbd5e1 !important;
    border-radius: 6px !important;
    font-size: 14px !important;
    width: 100% !important;
}

.activity-filters .filter-select:hover {
    border-color: #3b82f6;
}

.activity-filters .filter-select:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Search bar in activity panel */
.activity-header .search-bar-container {
    flex: 1;
    min-width: 250px;
    max-width: 400px;
    position: relative;
    display: flex;
    align-items: center;
}

.activity-header .search-bar-container input {
    height: 42px !important;
    padding: 10px 35px 10px 12px !important;
    box-sizing: border-box !important;
    line-height: normal !important;
    margin: 0 !important;
}

.activity-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Categorías */
.activity-category {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.2s;
}

.activity-category:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.activity-category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: #f8fafc;
    cursor: pointer;
    user-select: none;
    transition: background 0.2s;
}

.activity-category-header:hover {
    background: #f1f5f9;
}

.category-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 16px;
    color: #000000 !important;
}

.category-icon {
    font-size: 20px;
}

.category-count {
    font-size: 14px;
    color: #000000 !important;
    font-weight: 500;
}

.category-toggle {
    font-size: 12px;
    color: #475569;
    transition: transform 0.2s;
}

.activity-category-content {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Items de actividad */
.activity-item {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: #f8fafc;
    border-radius: 8px;
    transition: all 0.2s;
    position: relative;
}

.activity-item:hover {
    background: #f1f5f9;
    transform: translateX(4px);
}

.activity-item-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.activity-item-content {
    flex: 1;
    min-width: 0;
}

.activity-item-title {
    font-size: 14px;
    line-height: 1.5;
    color: #000000 !important;
    margin-bottom: 8px;
}

.activity-item-title strong {
    color: #000000 !important;
    font-weight: 600;
}

.activity-item-meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 12px;
    color: #000000 !important;
}

.meta-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    background: white;
    border-radius: 4px;
    border: 1px solid #e2e8f0;
}

.meta-time {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.activity-item-details {
    margin-top: 8px;
    padding: 8px 12px;
    background: white;
    border-radius: 6px;
    border: 1px solid #e2e8f0;
    font-size: 13px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.detail-old {
    color: #dc2626;
    text-decoration: line-through;
}

.detail-new {
    color: #16a34a;
    font-weight: 500;
}

.activity-item-action {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 6px 12px;
    background: #3b82f6;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    opacity: 0;
}

.activity-item:hover .activity-item-action {
    opacity: 1;
}

.activity-item-action:hover {
    background: #2563eb;
    transform: translateX(2px);
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #000000 !important;
}

.empty-state .icon {
    font-size: 64px;
    margin-bottom: 16px;
}

.empty-state h3 {
    font-size: 20px;
    color: #000000 !important;
    margin-bottom: 8px;
    font-weight: 600;
}

.empty-state p {
    font-size: 14px;
    color: #000000 !important;
}

/* Spinner */
.spinner {
    width: 40px;
    height: 40px;
    margin: 0 auto 16px;
    border: 4px solid #e2e8f0;
    border-top-color: #3b82f6;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner + p {
    color: #000000 !important;
}

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

/* Error message */
.error-message {
    padding: 16px;
    background: #fee2e2;
    border: 1px solid #fecaca;
    border-radius: 8px;
    color: #991b1b !important;
    text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
    .activity-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .activity-filters {
        width: 100%;
    }
    
    .activity-filters .filter-select {
        flex: 1;
        min-width: 0;
    }
    
    .activity-item {
        flex-direction: column;
        gap: 12px;
    }
    
    .activity-item-action {
        position: static;
        opacity: 1;
        width: 100%;
    }
}