/* Dashboard Bicicleta Fija - Estilos CSS */

:root {
    --primary-color: #2196F3;
    --secondary-color: #FF9800;
    --success-color: #4CAF50;
    --danger-color: #F44336;
    --warning-color: #FF9800;
    --info-color: #00BCD4;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --border-color: #dee2e6;
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 8px rgba(0,0,0,0.15);
    --border-radius: 8px;
    --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, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    line-height: 1.6;
    color: var(--dark-color);
}

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

/* Header */
.header {
    background: white;
    padding: 20px 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.header h1 {
    color: var(--primary-color);
    font-size: 2.2rem;
    font-weight: 700;
}

.header h1 i {
    margin-right: 15px;
    color: var(--secondary-color);
}

.header-info {
    display: flex;
    align-items: center;
    gap: 20px;
}

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

/* Botones */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: #1976D2;
    transform: translateY(-1px);
}

/* Alertas */
.alert {
    padding: 15px 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-error {
    background: #ffebee;
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}

/* Grid de estadísticas */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition);
}

.stat-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.stat-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, var(--primary-color), var(--info-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.stat-content h3 {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-color);
}

/* Secciones */
section {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    overflow: hidden;
}

section h3 {
    background: var(--light-color);
    padding: 20px 30px;
    margin: 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 1.3rem;
    color: var(--dark-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Gráficos */
.charts-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
    padding: 0;
    background: transparent;
    box-shadow: none;
}

.chart-container {
    background: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.chart-container h3 {
    background: none;
    border: none;
    padding: 0 0 20px 0;
    font-size: 1.2rem;
}

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

.activity-chart-container {
    padding: 20px 30px 30px;
}

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

/* Tablas */
.table-container {
    overflow-x: auto;
    padding: 0 30px 30px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table th,
.data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background: var(--light-color);
    font-weight: 600;
    color: var(--dark-color);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
}

.data-table tr:hover {
    background: #f8f9fa;
}

.data-table td:last-child,
.data-table th:last-child {
    text-align: right;
}

.lugar-name {
    font-weight: 600;
    color: var(--primary-color);
}

.total-points {
    font-weight: 700;
    color: var(--success-color);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .header {
        padding: 15px 20px;
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .header h1 {
        font-size: 1.8rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: 20px;
    }
    
    .charts-section {
        grid-template-columns: 1fr;
    }
    
    .chart-container {
        min-width: unset;
    }
    
    .table-container {
        padding: 0 15px 20px;
    }
    
    .data-table {
        font-size: 0.8rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 8px 10px;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.5rem;
    }
    
    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    section h3 {
        padding: 15px 20px;
        font-size: 1.1rem;
    }
}

/* Animaciones */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stat-card,
section {
    animation: fadeInUp 0.6s ease-out;
}

/* Loading spinner */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

/* Utilidades */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.p-0 { padding: 0; }

/* Estado de conexión */
.connection-status {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.connection-status.online {
    background: #d4edda;
    color: #155724;
}

.connection-status.offline {
    background: #f8d7da;
    color: #721c24;
}