/* =================================================================
   VARIABLES Y ESTILOS GLOBALES
   ================================================================= */

:root {
    --primary-color: #1c3e2c;
    --secondary-color: #2d5f42;
    --success-color: #28a745;
    --info-color: #17a2b8;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --purple-color: #6f42c1;
    
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --text-dark: #2c3e50;
    --text-muted: #6c757d;
    --border-color: #e0e0e0;
    
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
    
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
}

/* =================================================================
   DASHBOARD CONTAINER
   ================================================================= */

.dashboard-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* =================================================================
   HEADER SECTION
   ================================================================= */

.dashboard-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: var(--border-radius);
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-lg);
    color: white;
}

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

.dashboard-title {
    font-size: 2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 15px;
    margin: 0;
}

.dashboard-title i {
    font-size: 2.2rem;
}

.header-actions {
    display: flex;
    gap: 10px;
}

.btn-refresh {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.btn-refresh:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.btn-refresh i {
    transition: transform 0.5s ease;
}

.btn-refresh:hover i {
    transform: rotate(180deg);
}

/* =================================================================
   FILTERS SECTION
   ================================================================= */

.filters-section {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-md);
}

.filters-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    align-items: end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-group label {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.filter-input {
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    transition: var(--transition);
    background: white;
}

.filter-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(28, 62, 44, 0.1);
}

.btn-filter {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.btn-filter:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* =================================================================
   LOADING INDICATOR
   ================================================================= */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    backdrop-filter: blur(5px);
}

.loading-spinner {
    text-align: center;
    padding: 40px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    max-width: 400px;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 5px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    margin: 0 auto 20px;
    animation: spin 1s linear infinite;
}

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

.loading-spinner p {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.loading-spinner small {
    color: var(--text-muted);
    font-size: 14px;
}

.btn-retry {
    margin-top: 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.btn-retry:hover {
    background: var(--secondary-color);
    transform: scale(1.05);
}

.error-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

/* =================================================================
   KPIs SECTION
   ================================================================= */

.kpis-section {
    margin-bottom: 40px;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding-left: 5px;
}

.section-title i {
    color: var(--primary-color);
}

.kpis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.kpi-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: var(--primary-color);
}

.kpi-card.primary::before { background: var(--primary-color); }
.kpi-card.success::before { background: var(--success-color); }
.kpi-card.info::before { background: var(--info-color); }
.kpi-card.warning::before { background: var(--warning-color); }
.kpi-card.danger::before { background: var(--danger-color); }
.kpi-card.purple::before { background: var(--purple-color); }

.kpi-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.kpi-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    flex-shrink: 0;
}

.kpi-card.primary .kpi-icon {
    background: linear-gradient(135deg, rgba(28, 62, 44, 0.1), rgba(28, 62, 44, 0.2));
    color: var(--primary-color);
}

.kpi-card.success .kpi-icon {
    background: linear-gradient(135deg, rgba(40, 167, 69, 0.1), rgba(40, 167, 69, 0.2));
    color: var(--success-color);
}

.kpi-card.info .kpi-icon {
    background: linear-gradient(135deg, rgba(23, 162, 184, 0.1), rgba(23, 162, 184, 0.2));
    color: var(--info-color);
}

.kpi-card.warning .kpi-icon {
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.1), rgba(255, 193, 7, 0.2));
    color: var(--warning-color);
}

.kpi-card.danger .kpi-icon {
    background: linear-gradient(135deg, rgba(220, 53, 69, 0.1), rgba(220, 53, 69, 0.2));
    color: var(--danger-color);
}

.kpi-card.purple .kpi-icon {
    background: linear-gradient(135deg, rgba(111, 66, 193, 0.1), rgba(111, 66, 193, 0.2));
    color: var(--purple-color);
}

.kpi-content {
    flex: 1;
}

.kpi-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 5px;
}

.kpi-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0;
    line-height: 1;
}

.kpi-unit {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
    margin-left: 5px;
}

/* =================================================================
   CHARTS SECTION
   ================================================================= */

.charts-section {
    margin-bottom: 40px;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 25px;
}

.chart-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.chart-card.full-width {
    grid-column: 1 / -1;
}

.chart-card:hover {
    box-shadow: var(--shadow-lg);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.chart-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0;
}

.chart-header h3 i {
    color: var(--primary-color);
}

.chart-badge {
    background: var(--primary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.chart-body {
    min-height: 350px;
}

.no-data {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-muted);
    font-size: 16px;
}

/* =================================================================
   TABLES SECTION
   ================================================================= */

.tables-section {
    margin-bottom: 40px;
}

.table-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.tab-button {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    padding: 15px 25px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
    position: relative;
}

.tab-button:hover {
    border-color: var(--primary-color);
    background: rgba(28, 62, 44, 0.05);
}

.tab-button.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-color: transparent;
    color: white;
    box-shadow: var(--shadow-md);
}

.tab-count {
    background: rgba(255, 255, 255, 0.3);
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 700;
}

.tab-button.active .tab-count {
    background: rgba(255, 255, 255, 0.3);
}

.table-container {
    display: none;
}

.table-container.active {
    display: block;
}

.table-wrapper {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--shadow-md);
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table thead {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.data-table thead th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
}

.data-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.data-table tbody tr:hover {
    background: rgba(28, 62, 44, 0.05);
}

.data-table tbody td {
    padding: 12px 15px;
    white-space: nowrap;
}

/* DataTables Custom Styling */
.dataTables_wrapper {
    width: 100%;
}

.dataTables_filter input {
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    margin-left: 10px;
    transition: var(--transition);
}

.dataTables_filter input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.dataTables_length select {
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    margin: 0 10px;
}

.dt-buttons {
    margin-bottom: 15px;
}

.btn-export {
    padding: 10px 20px !important;
    border-radius: 8px !important;
    font-weight: 600 !important;
    margin-right: 10px !important;
    border: none !important;
    cursor: pointer !important;
    transition: var(--transition) !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 8px !important;
}

.btn-export.excel {
    background: var(--success-color) !important;
    color: white !important;
}

.btn-export.pdf {
    background: var(--danger-color) !important;
    color: white !important;
}

.btn-export:hover {
    transform: translateY(-2px) !important;
    box-shadow: var(--shadow-md) !important;
}

.dataTables_paginate .paginate_button {
    padding: 8px 12px !important;
    margin: 0 2px !important;
    border-radius: 6px !important;
    border: 1px solid var(--border-color) !important;
    background: var(--card-bg) !important;
    cursor: pointer !important;
}

.dataTables_paginate .paginate_button.current {
    background: var(--primary-color) !important;
    color: white !important;
    border-color: var(--primary-color) !important;
}

/* =================================================================
   CUSTOM TOOLTIP
   ================================================================= */

.custom-tooltip {
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 12px;
    border-radius: 8px;
    font-size: 13px;
    line-height: 1.6;
}

.custom-tooltip span {
    display: block;
    margin: 4px 0;
}

/* =================================================================
   RESPONSIVE DESIGN
   ================================================================= */

@media (max-width: 1200px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .dashboard-container {
        padding: 15px;
    }
    
    .dashboard-header {
        padding: 20px;
    }
    
    .dashboard-title {
        font-size: 1.5rem;
    }
    
    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .filters-form {
        grid-template-columns: 1fr;
    }
    
    .kpis-grid {
        grid-template-columns: 1fr;
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
    }
    
    .table-tabs {
        flex-direction: column;
    }
    
    .tab-button {
        width: 100%;
        justify-content: space-between;
    }
    
    .table-wrapper {
        padding: 15px;
    }
    
    .data-table {
        font-size: 12px;
    }
    
    .data-table thead th,
    .data-table tbody td {
        padding: 10px;
    }
}

@media (max-width: 480px) {
    .dashboard-title {
        font-size: 1.2rem;
    }
    
    .kpi-value {
        font-size: 22px;
    }
    
    .kpi-icon {
        width: 50px;
        height: 50px;
        font-size: 24px;
    }
}

/* =================================================================
   ANIMATIONS
   ================================================================= */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.kpi-card,
.chart-card,
.table-wrapper {
    animation: fadeIn 0.5s ease;
}

/* =================================================================
   PRINT STYLES
   ================================================================= */

@media print {
    .filters-section,
    .btn-refresh,
    .dt-buttons,
    .dataTables_filter,
    .dataTables_length,
    .dataTables_paginate {
        display: none !important;
    }
    
    .dashboard-container {
        max-width: 100%;
    }
    
    .chart-card,
    .kpi-card {
        break-inside: avoid;
    }
}