/* ==============================================================================
   DISEÑO PREMIUM DEL DASHBOARD (ESTILO SaaS Y ANALÍTICA AVANZADA)
   ============================================================================== */

/* Rejilla de KPIs superiores (4 columnas) */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.kpi-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    box-shadow: var(--glass-shadow);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.kpi-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: transparent;
    transition: background-color var(--transition-fast);
}

.kpi-card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
}

/* Colores identificativos del borde izquierdo en hover */
.kpi-card.sales:hover::after { background-color: var(--color-primary); }
.kpi-card.purchases:hover::after { background-color: var(--color-warning); }
.kpi-card.clients:hover::after { background-color: var(--color-info); }
.kpi-card.alerts:hover::after { background-color: var(--color-danger); }

.kpi-details {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex-grow: 1;
}

.kpi-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

/* Jerarquía de Visualización Multimoneda */
.kpi-value-main {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--color-success);
    letter-spacing: -0.5px;
    line-height: 1.1;
}

.kpi-value-sec {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 2px;
}

.kpi-badge-usd {
    background-color: rgba(6, 182, 212, 0.08);
    color: var(--color-info);
    border: 1px solid rgba(6, 182, 212, 0.15);
    padding: 1px 5px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
}

.kpi-badge-pen {
    background-color: rgba(16, 185, 129, 0.08);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.15);
    padding: 1px 5px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
}

.kpi-icon-wrapper {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.kpi-card.sales .kpi-icon-wrapper { background-color: rgba(99, 102, 241, 0.08); color: var(--color-primary); }
.kpi-card.purchases .kpi-icon-wrapper { background-color: rgba(245, 158, 11, 0.08); color: var(--color-warning); }
.kpi-card.clients .kpi-icon-wrapper { background-color: rgba(6, 182, 212, 0.08); color: var(--color-info); }
.kpi-card.alerts .kpi-icon-wrapper { background-color: rgba(239, 68, 68, 0.08); color: var(--color-danger); }

/* ==============================================================================
   FILA DE GRÁFICOS (2 COLUMNAS: TENDENCIA 2/3, CATEGORÍAS 1/3)
   ============================================================================== */
.charts-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

@media (max-width: 1024px) {
    .charts-layout {
        grid-template-columns: 1fr;
    }
}

.chart-header-actions {
    display: flex;
    gap: 8px;
}

.chart-tab-btn {
    padding: 4px 10px;
    background-color: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.chart-tab-btn:hover {
    color: var(--text-main);
    border-color: var(--text-muted);
}

.chart-tab-btn.active {
    background-color: var(--color-primary);
    color: var(--text-inverse);
    border-color: var(--color-primary);
}

/* ==============================================================================
   FILA DE TABLAS DE ACTIVIDAD RECIENTE (1/2 Y 1/2)
   ============================================================================== */
.tables-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

@media (max-width: 768px) {
    .tables-layout {
        grid-template-columns: 1fr;
    }
}

/* Estilización de tablas minimalistas del Dashboard */
.dashboard-mini-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.dashboard-mini-table th {
    padding: 10px 14px;
    font-weight: 600;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
    background-color: rgba(0,0,0,0.1);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.dashboard-mini-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border-color);
}

.dashboard-mini-table tbody tr:last-child td {
    border-bottom: none;
}

.dashboard-mini-table tr {
    transition: background-color var(--transition-fast);
}

.dashboard-mini-table tr:hover {
    background-color: rgba(255,255,255,0.01);
}

/* Alertas de Stock Críticas */
.alert-item-critical {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-color);
    transition: background-color var(--transition-fast);
}

.alert-item-critical:last-child {
    border-bottom: none;
}

.alert-item-critical:hover {
    background-color: rgba(239, 68, 68, 0.02);
}

.alert-item-critical.zero-stock {
    border-left: 3px solid var(--color-danger);
}

.alert-item-critical.low-stock {
    border-left: 3px solid var(--color-warning);
}