/* ==========================================================================
   Variables y Reset
   ========================================================================== */
:root {
    --sidebar-bg: #0b0f19;
    --sidebar-hover: #151b2b;
    --canvas-bg: #f3f4f6;     /* Estilo Power BI: fondo gris claro */
    --card-bg: #ffffff;       /* Tarjetas blancas puras */
    --accent-green: #39ff14;
    --text-main: #1f2937;
    --text-muted: #c0c0c0;
    --text-sidebar: #e5e7eb;
    --border-color: #e5e7eb;
    
    /* Colores de tendencia */
    --trend-up: #10b981;
    --trend-down: #ef4444;
    --trend-neutral: #f59e0b;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

body {
    display: flex;
    height: 100vh;
    background-color: var(--canvas-bg);
    color: var(--text-main);
    overflow: hidden; /* Evita scroll en todo el body, se maneja internamente */
}

/* ==========================================================================
   Menú Lateral (Sidebar)
   ========================================================================== */
.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    color: var(--text-sidebar);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.sidebar-header {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo-icon {
    width: 20px;
    height: 20px;
    background-color: var(--accent-green);
    border-radius: 4px;
    transform: rotate(45deg);
}

.sidebar-header h2 {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.5px;
}

.sidebar-nav {
    flex: 1;
    padding: 20px 0;
    overflow-y: auto;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav li a {
    display: block;
    padding: 12px 24px;
    color: var(--text-sidebar);
    text-decoration: none;
    font-size: 14px;
    transition: background 0.2s;
}

.sidebar-nav li a:hover {
    background-color: var(--sidebar-hover);
    border-left: 4px solid var(--accent-green);
    padding-left: 20px;
}

.sidebar-nav li.active a {
    background-color: var(--sidebar-hover);
    border-left: 4px solid var(--accent-green);
    padding-left: 20px;
    color: #fff;
    font-weight: 600;
}

.sidebar-footer {
    padding: 20px 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sidebar-footer a {
    color: var(--text-sidebar);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.sidebar-footer a:hover {
    color: #fff;
}

.sidebar-footer .logout {
    color: #ef4444;
}

/* ==========================================================================
   Contenido Principal y Cabecera
   ========================================================================== */
.main-content {
    flex: 1;
    overflow-y: auto;
    padding: 24px 32px;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.top-bar h1 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-main);
}

.subtitle {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 4px;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-name {
    font-size: 14px;
    font-weight: 500;
}

.avatar {
    width: 40px;
    height: 40px;
    background-color: var(--accent-green);
    color: #000;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    font-size: 14px;
}

/* ==========================================================================
   Tarjetas KPI
   ========================================================================== */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.kpi-card {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.1); /* Sombra estilo Power BI */
    border: 1px solid var(--border-color);
}

.kpi-title {
    font-size: 13px;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    margin-bottom: 8px;
    font-weight: 600;
}

.kpi-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 8px;
}

.kpi-value .currency, .kpi-value .unit {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
}

.kpi-trend {
    font-size: 13px;
    font-weight: 500;
}

.kpi-trend.positive { color: var(--trend-up); }
.kpi-trend.negative { color: var(--trend-down); }
.kpi-trend.neutral { color: var(--trend-neutral); }

/* ==========================================================================
   Cuadrícula de Gráficas
   ========================================================================== */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.chart-card {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.chart-large {
    grid-column: span 2;
}

.chart-full {
    grid-column: span 3;
}

.chart-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.canvas-container {
    position: relative;
    height: 300px; /* Altura fija para mantener proporción */
    width: 100%;
}

/* Responsivo para pantallas más pequeñas */
@media (max-width: 1024px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
    .chart-large, .chart-full {
        grid-column: span 1;
    }
}

@media (max-width: 768px) {
    body {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        height: auto;
    }
    .sidebar-nav {
        display: none; /* En producción requeriría un botón de menú hamburguesa */
    }
    .main-content {
        padding: 16px;
    }
}
.logo {
  width: 180px;
  height: auto;
  display: block;
}

/* CATALUX DARK THEME — solo presentación visual */
:root { --canvas-bg:#070a0f; --card-bg:#111720; --text-main:#f1f5f9; --text-muted:#aeb8c6; --border-color:#34404d; }
body,.main-content { background:#070a0f; color:var(--text-main); }
.kpi-card,.chart-card { background:#111720; border-color:#34404d; box-shadow:0 8px 24px rgba(0,0,0,.28); }
.top-bar h1,.kpi-value,.chart-title,.user-name { color:#f1f5f9; }
.chart-title { border-bottom-color:#34404d; }
/* ======================================================================
   MENÚ UNIFICADO — MISMO DISEÑO QUE FLOTA VEHICULAR
   ====================================================================== */
:root {
    --sidebar-bg: #111827;
    --accent-green: #00e676;
    --accent-hover: #00c853;
    --text-light: #f3f4f6;
    --bg-dark: #0b0f19;
}

.sidebar {
    width: 260px;
    min-width: 260px;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    background-color: var(--sidebar-bg);
    color: var(--text-light);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.brand {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.brand-logo {
    background: var(--accent-green);
    color: var(--bg-dark);
    font-weight: bold;
    font-size: 20px;
    width: 36px;
    height: 36px;
    min-width: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transform: none;
}

.brand-name {
    margin: 0;
    color: var(--text-light);
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.2;
    white-space: nowrap;
}

.brand-name span {
    color: var(--accent-green);
    font-weight: 400;
}

.sidebar-nav {
    flex: 1;
    padding: 24px 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    overflow-y: auto;
}

.sidebar-nav .nav-link,
.sidebar-nav .nav-link:visited,
.sidebar-footer .nav-link,
.sidebar-footer .nav-link:visited {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: #9ca3af;
    text-decoration: none;
    border: 0;
    border-radius: 8px;
    transition: all 0.2s;
    font-size: 16px;
    font-weight: 500;
    line-height: 1.25;
}

.nav-link svg {
    width: 20px;
    height: 20px;
    min-width: 20px;
}

.sidebar-nav .nav-link:hover,
.sidebar-nav .nav-link.active {
    background-color: rgba(0, 230, 118, 0.1);
    color: var(--accent-green);
    border-left: 0;
    padding-left: 16px;
}

.sidebar-footer {
    padding: 24px 12px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.sidebar-footer .logout:hover {
    background-color: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.main-content {
    margin-left: 260px;
    min-height: 100vh;
}

@media (max-width: 1024px) {
    .sidebar { width: 80px; min-width: 80px; }
    .brand { justify-content: center; padding: 24px 12px; }
    .brand-name { display: none; }
    .sidebar-nav .nav-link,
    .sidebar-footer .nav-link { justify-content: center; padding: 12px; font-size: 0; }
    .sidebar-nav .nav-link:hover,
    .sidebar-nav .nav-link.active { padding-left: 12px; }
    .main-content { margin-left: 80px; }
}

@media (max-width: 768px) {
    .sidebar {
        position: static;
        width: 100%;
        min-width: 100%;
        height: auto;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        padding: 10px;
    }
    .brand { border: 0; padding: 0 10px; }
    .sidebar-nav { flex-direction: row; padding: 0; overflow: visible; }
    .sidebar-footer { padding: 0; border: 0; }
    .main-content { margin-left: 0; }
}

/* CATALUX DARK THEME — solo presentación visual */
:root { --canvas-bg:#070a0f; --card-bg:#111720; --text-main:#f1f5f9; --text-muted:#aeb8c6; --border-color:#34404d; }
body,.main-content { background:#070a0f; color:var(--text-main); }
.kpi-card,.chart-card { background:#111720; border-color:#34404d; box-shadow:0 8px 24px rgba(0,0,0,.28); }
.top-bar h1,.kpi-value,.chart-title,.user-name { color:#f1f5f9; }
.chart-title { border-bottom-color:#34404d; }