/* Estilos Generales */
:root {
    --bg-color: #f4f7fa;
    --card-bg-color: #ffffff;
    --text-color: #333;
    --primary-color: #007bff;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    /* Color para alertas */
    --border-color: #e0e0e0;
    --shadow-color: rgba(0, 0, 0, 0.05);
}

/* --- Tema Oscuro --- */
body.dark-theme {
    --bg-color: #1a1a2e;
    --card-bg-color: #16213e;
    --text-color: #e0e0e0;
    --primary-color: #3a7bfd;
    --border-color: #2a3b5e;
    --shadow-color: rgba(0, 0, 0, 0.2);
}

body.dark-theme .summary-card h3,
body.dark-theme .summary-card .summary-unit {
    color: #a9b2c7;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    line-height: 1.6;
}

header {
    background: linear-gradient(90deg, #005c97, #363795);
    color: white;
    padding: 1rem 1.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: flex;
    justify-content: center;
    align-items: center;
}

.header-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.header-icon {
    stroke-width: 1.5;
}

h1,
h2 {
    margin: 0;
}

h1 {
    font-size: 1.75rem;
    font-weight: 300;
    letter-spacing: 0.5px;
}

h2 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

main {
    padding: 1.5rem;
}

/* Filtros */
.filters {
    margin-bottom: 1.5rem;
    background-color: var(--card-bg-color);
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 4px 8px var(--shadow-color);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.filters label {
    margin-right: 0.5rem;
    font-weight: 500;
}

.filters select {
    padding: 0.5rem;
    border-radius: 5px;
    border: 1px solid var(--border-color);
}

/* --- Interruptor de Tema --- */
.theme-switcher {
    margin-left: auto;
    /* Empuja el interruptor a la derecha */
}

.theme-label {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
}

.theme-label input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 26px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked+.slider {
    background-color: var(--primary-color);
}

input:checked+.slider:before {
    transform: translateX(24px);
}

.report-button {
    padding: 0.5rem 1rem;
    margin-left: 1rem;
    background-color: var(--success-color);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.2s ease;
}

.report-button:hover {
    background-color: #218838;
}

/* Resumen Ejecutivo */
.executive-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.summary-card {
    background-color: var(--card-bg-color);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 8px var(--shadow-color);
    text-align: center;
}

.summary-card h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
    font-weight: 500;
    color: #6c757d;
}

.summary-card .summary-value {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.2;
}

.summary-card .summary-unit {
    font-size: 0.9rem;
    color: #6c757d;
}

/* Estilos para el Registro de Alertas */
.alert-log-card {
    grid-column: 1 / -1;
    /* Ocupa todo el ancho de la fila */
    text-align: left;
}

.alert-log-card h3 {
    text-align: center;
}

.alert-log {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0 0 0;
    height: 120px;
    /* Altura fija con scroll */
    overflow-y: auto;
    font-size: 0.9rem;
}

.alert-log li {
    padding: 0.5rem 0.2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    gap: 1rem;
    align-items: center;
}

.alert-log li:last-child {
    border-bottom: none;
}

.alert-log .log-time {
    font-weight: 700;
    color: var(--primary-color);
}

.alert-log .no-alerts {
    color: #999;
    text-align: center;
    padding-top: 2.5rem;
    font-style: italic;
}

/* Grid del Dashboard */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.5rem;
}

.card {
    background-color: var(--card-bg-color);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 8px var(--shadow-color);
    transition: transform 0.2s ease-in-out;
}

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

/* Estilo para los indicadores numéricos (KPIs) */
.kpi-value {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--primary-color);
    transition: color 0.3s ease-in-out;
    /* Transición suave para el cambio de color */
}

.kpi-value.kpi-alert {
    color: var(--danger-color);
}

/* Estilo para el indicador de reserva */
.reserve-value {
    text-align: center;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-color);
    margin-top: -1rem;
    /* Lo acerca al KPI principal */
    margin-bottom: 1.5rem;
}

.reserve-value span {
    font-weight: 700;
    transition: color 0.3s ease-in-out;
}

.reserve-value span.reserve-ok {
    color: var(--success-color);
}

.reserve-value span.reserve-warning {
    color: var(--warning-color);
}

.reserve-value span.reserve-danger {
    color: var(--danger-color);
}

/* Contenedor para los gráficos para evitar que se expandan */
.chart-container {
    position: relative;
    height: 300px;
}

/* El mapa necesita una altura definida */
#mapid {
    height: 400px;
    border-radius: 8px;
}

.map-card {
    /* Ya no ocupa todo el ancho para poder alinearse con los otros gráficos */
}

/* --- Leyenda del Mapa --- */
.info-legend {
    padding: 8px 12px;
    font: 14px/16px Arial, Helvetica, sans-serif;
    background: white;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.2);
    border-radius: 5px;
    line-height: 20px;
    color: #555;
}

.info-legend i {
    width: 18px;
    height: 18px;
    float: left;
    margin-right: 8px;
}

/* Estilos para la nueva fila */
.top-consumers-card {
    grid-column: span 1;
    /* Ocupa 1 columna de la grilla */
}

.top-chart-card {
    grid-column: span 2;
    /* Ocupa 2 columnas, haciéndolo más ancho */
}

/* Estilos para la lista del Top 3 */
.top-consumers-list {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.top-consumers-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0.5rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 1.1rem;
}

.top-consumers-list li:last-child {
    border-bottom: none;
}

.top-consumers-list .region-name {
    font-weight: 500;
}

.top-consumers-list .region-value {
    font-weight: 700;
    color: var(--primary-color);
}

/* --- Media Queries para Responsividad --- */

@media (max-width: 768px) {
    main {
        padding: 1rem;
    }

    h1 {
        font-size: 1.4rem;
    }

    .filters {
        flex-direction: column;
        align-items: stretch;
    }

    .theme-switcher {
        margin-left: 0;
        align-self: flex-start;
    }

    .report-button {
        margin-left: 0;
    }

    .kpi-value {
        font-size: 2rem;
    }

    .summary-card .summary-value {
        font-size: 1.8rem;
    }

    .alert-log {
        height: 150px;
    }

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

@media (max-width: 480px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}