. {
    color: #1a365d;
}

body {
    background: #f4f6f9;
}

.navbar-brand {
    font-weight: 600;
}

.card {
    border: 0;
    box-shadow: 0 0.125rem 0.5rem rgba(16, 24, 40, 0.06);
}

.table td, .table th {
    vertical-align: middle;
}

.limit-ok { color: #198754; }
.limit-warn { color: #fd7e14; }
.limit-over { color: #dc3545; }

.invoice-hero {
    max-width: 480px;
    margin: 3rem auto;
}

pre.json-block {
    background: #0f172a;
    color: #e2e8f0;
    border-radius: 0.5rem;
    padding: 1rem;
    font-size: 0.8rem;
    max-height: 420px;
    overflow: auto;
}

.secret-hint {
    font-size: 0.85rem;
    color: #64748b;
}