:root {
    --primary: #2A4D69; /* Azul Pizarra/Acero */
    --accent: #FF6B35; /* Naranja (Avatar) */
    --bg: #F1F5F9; /* Fondo gris azulado muy claro */
    --card-bg: rgba(255, 255, 255, 0.85);
    --text-main: #1E293B;
    --text-muted: #64748B;
    --glass-border: rgba(255, 255, 255, 0.4);
    --sidebar-width: 280px;
}


.loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(241, 245, 249, 0.8);
    backdrop-filter: blur(8px);
    display: none;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    z-index: 2000;
}

    .loader-overlay.task-active {
        display: flex !important;
    }

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(42, 77, 105, 0.1);
    border-left-color: #2A4D69;
    border-top-color: #FF6B35;
    border-radius: 50%;
    animation: spin 1s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

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

.loader-text {
    margin-top: 15px;
    color: #2A4D69;
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}