body {
    margin: 0;
    background: #f4f7fb;
    font-family: Arial, sans-serif;
}

.main-content {
    margin-left: 270px;
    padding: 30px;
}

.page-header {
    background: linear-gradient(135deg, #123d6b, #0b1f3a);
    color: #fff;
    padding: 30px;
    border-radius: 18px;
    margin-bottom: 25px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.bloque {
    background: #fff;
    border-radius: 18px;
    padding: 24px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.08);
    margin-bottom: 25px;
}

.titulo-seccion {
    font-size: 18px;
    font-weight: bold;
    color: #123d6b;
    margin-bottom: 18px;
    border-bottom: 2px solid #e9ecef;
    padding-bottom: 8px;
}

.btn-teleco,
.btn-lux {
    background-color: #123d6b;
    border: none;
    color: #fff;
    font-weight: bold;
}

.btn-teleco:hover,
.btn-lux:hover {
    background-color: #0f3258;
    color: #fff;
}

.footer-lux {
    text-align: center;
    padding: 20px 0 30px 0;
    margin-top: 10px;
}

.footer-text {
    margin-top: 10px;
    font-size: 14px;
    color: #6c757d;
}

.card-stat {
    border: none;
    border-radius: 18px;
    box-shadow: 0 6px 18px rgba(0,0,0,.08);
    overflow: hidden;
    transition: 0.2s ease;
    background: #fff;
}

.card-stat:hover {
    transform: translateY(-4px);
}

.card-top { height: 6px; }
.top-blue { background: #123d6b; }
.top-green { background: #198754; }
.top-orange { background: #fd7e14; }
.top-purple { background: #6f42c1; }
.top-red { background: #dc3545; }

.card-stat .card-body {
    padding: 22px;
}

.stat-title {
    font-size: 13px;
    text-transform: uppercase;
    color: #6c757d;
    font-weight: bold;
    margin-bottom: 6px;
}

.stat-value {
    font-size: 28px;
    font-weight: bold;
    color: #123d6b;
    line-height: 1.1;
}

@media (max-width: 991px) {
    .main-content {
        margin-left: 0;
        padding: 20px;
    }
}