:root {
    --rbm-bg: #f6f7fb;
    --rbm-card: #ffffff;
    --rbm-primary: #1d4ed8;
    --rbm-primary-soft: #dbeafe;
    --rbm-text: #1f2937;
    --rbm-muted: #6b7280;
    --rbm-border: #e5e7eb;
    --rbm-success: #059669;
    --rbm-warning: #d97706;
}

.rbm-shell {
    max-width: 960px;
    margin: 0 auto;
    padding: 24px 16px 48px;
    font-family: "Tahoma", "Segoe UI", sans-serif;
    color: var(--rbm-text);
    background: var(--rbm-bg);
}

.rbm-card {
    background: var(--rbm-card);
    border: 1px solid var(--rbm-border);
    border-radius: 16px;
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.04);
    padding: 20px;
    margin-bottom: 16px;
}

.rbm-grid {
    display: grid;
    gap: 16px;
}

.rbm-grid.two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.rbm-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.rbm-list li {
    padding: 10px 0;
    border-bottom: 1px solid var(--rbm-border);
}

.rbm-btn {
    display: inline-block;
    background: var(--rbm-primary);
    color: #fff;
    border-radius: 10px;
    padding: 10px 18px;
    text-decoration: none;
    font-weight: 600;
}

.rbm-badge {
    display: inline-block;
    background: var(--rbm-primary-soft);
    color: var(--rbm-primary);
    border-radius: 999px;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
}

.rbm-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
}

@media (max-width: 640px) {
    .rbm-grid.two {
        grid-template-columns: 1fr;
    }
}