/* =============================================================================
   VISIT COUNTER DASHBOARD - CSS STYLES
   ============================================================================= */

/* Reset e base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    padding: 20px 0;
    margin-bottom: 30px;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    color: #4a5568;
    font-size: 2rem;
    font-weight: 700;
}

.header-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

#last-update {
    color: #666;
    font-size: 0.9rem;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #f7fafc;
    color: #4a5568;
    border: 1px solid #e2e8f0;
}

.btn-secondary:hover {
    background: #edf2f7;
}

/* Statistics Overview */
.stats-overview {
    margin-bottom: 40px;
}

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

.stat-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.stat-icon {
    font-size: 2.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-info h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 5px;
}

.stat-info p {
    color: #666;
    font-weight: 500;
}

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

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 30px;
}

.chart-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.chart-container h3 {
    color: #2d3748;
    margin-bottom: 20px;
    font-weight: 600;
}

.chart-container canvas {
    max-height: 300px;
}

/* Sites Table */
.sites-table-section {
    margin-bottom: 40px;
}

.sites-table-section h3 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.5rem;
    font-weight: 600;
}

.table-controls {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.search-input, .sort-select {
    padding: 10px 15px;
    border: none;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    font-size: 0.9rem;
    min-width: 200px;
}

.search-input:focus, .sort-select:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.3);
}

.table-wrapper {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.sites-table {
    width: 100%;
    border-collapse: collapse;
}

.sites-table th {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px;
    text-align: left;
    font-weight: 600;
}

.sites-table td {
    padding: 15px;
    border-bottom: 1px solid #e2e8f0;
}

.sites-table tbody tr:hover {
    background: rgba(102, 126, 234, 0.05);
}

.loading-row td {
    text-align: center;
    color: #666;
    font-style: italic;
}

/* Loading */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.loading-spinner {
    text-align: center;
    color: white;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1001;
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-close {
    font-size: 1.5rem;
    cursor: pointer;
    color: #666;
}

.modal-close:hover {
    color: #333;
}

.modal-body {
    padding: 20px;
}

/* Footer */
.footer {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 20px 0;
    margin-top: 40px;
    text-align: center;
    color: #666;
}

.status-indicator {
    display: inline-block;
    margin-left: 5px;
}

/* Responsive */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
    }
    
    .chart-container canvas {
        max-height: 250px;
    }
    
    .table-controls {
        flex-direction: column;
    }
    
    .search-input, .sort-select {
        width: 100%;
    }
    
    .sites-table {
        font-size: 0.9rem;
    }
    
    .sites-table th, .sites-table td {
        padding: 10px 8px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: 20px;
    }
    
    .chart-container {
        padding: 15px;
    }
}