/* Загальні стилі для сторінки статистики */
.statistics-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Заголовок */
.header-section {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 10px;
}

.header-section h1 {
    margin: 0 0 10px 0;
    font-size: 2.5em;
    font-weight: 300;
}

.header-section .description {
    margin: 0;
    font-size: 1.1em;
    opacity: 0.9;
}

/* Фільтри */
.filters-section {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 30px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    align-items: end;
}

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

.filter-group label {
    font-weight: 600;
    margin-bottom: 5px;
    color: #333;
}

.filter-group input,
.filter-group select {
    padding: 10px;
    border: 2px solid #e0e0e0;
    border-radius: 5px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.filter-group input:focus,
.filter-group select:focus {
    outline: none;
    border-color: #667eea;
}

.btn-primary {
    background: #667eea;
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.btn-primary:hover {
    background: #5a6fd8;
}

.btn-secondary {
    background: #6c757d;
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.btn-secondary:hover {
    background: #5a6268;
}

/* Картки статистики */
.summary-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.summary-card {
    background: white;
    padding: 25px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.summary-card:hover {
    transform: translateY(-5px);
}

.summary-card h3 {
    margin: 0 0 15px 0;
    color: #333;
    font-size: 1.1em;
    font-weight: 600;
}

.stat-number {
    font-size: 3em;
    font-weight: 700;
    color: #667eea;
    margin: 0;
}

/* Графіки */
.charts-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

.chart-container {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.chart-container h3 {
    margin: 0 0 20px 0;
    color: #333;
    font-size: 1.3em;
    font-weight: 600;
    text-align: center;
}

.chart-container canvas {
    max-height: 400px;
}

/* Таблиця */
.table-section {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.table-section h3 {
    margin: 0 0 20px 0;
    color: #333;
    font-size: 1.3em;
    font-weight: 600;
}

.table-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.search-box input {
    padding: 10px;
    border: 2px solid #e0e0e0;
    border-radius: 5px;
    font-size: 14px;
    width: 250px;
}

.search-box input:focus {
    outline: none;
    border-color: #667eea;
}

.table-container {
    overflow-x: auto;
}

#statistics-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

#statistics-table th,
#statistics-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}

#statistics-table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #333;
    position: sticky;
    top: 0;
}

#statistics-table tr:hover {
    background: #f8f9fa;
}

#statistics-table td:nth-child(2),
#statistics-table td:nth-child(3),
#statistics-table td:nth-child(4),
#statistics-table td:nth-child(5),
#statistics-table td:nth-child(6) {
    text-align: center;
}

/* Завантаження */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: none;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    z-index: 1000;
}

.loading-overlay.show {
    display: flex;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 15px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-overlay p {
    font-size: 1.1em;
    color: #333;
    margin: 0;
}

/* Адаптивність */
@media (max-width: 768px) {
    .statistics-container {
        padding: 15px;
    }
    
    .header-section h1 {
        font-size: 2em;
    }
    
    .filters-section {
        grid-template-columns: 1fr;
    }
    
    .summary-section {
        grid-template-columns: 1fr;
    }
    
    .charts-section {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .table-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-box input {
        width: 100%;
    }
    
    #statistics-table {
        font-size: 14px;
    }
    
    #statistics-table th,
    #statistics-table td {
        padding: 8px 10px;
    }
}

@media (max-width: 480px) {
    .header-section {
        padding: 15px;
    }
    
    .header-section h1 {
        font-size: 1.8em;
    }
    
    .summary-card {
        padding: 20px;
    }
    
    .stat-number {
        font-size: 2.5em;
    }
    
    .chart-container,
    .table-section {
        padding: 20px;
    }
}

/* Додаткові стилі для покращення UX */
.no-data {
    text-align: center;
    padding: 40px;
    color: #666;
    font-style: italic;
}

.error-message {
    background: #f8d7da;
    color: #721c24;
    padding: 15px;
    border-radius: 5px;
    margin: 15px 0;
    border: 1px solid #f5c6cb;
}

.success-message {
    background: #d4edda;
    color: #155724;
    padding: 15px;
    border-radius: 5px;
    margin: 15px 0;
    border: 1px solid #c3e6cb;
}

/* Анімації */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.slide-in {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { transform: translateX(-20px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}