.tab-btn.active {
    border-color: #2563eb; /* blue-600 */
    color: #1e293b; /* gray-900 */
    border-bottom-width: 4px;
}

.card {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    padding: 1.5rem;
}

.alert-banner {
    background-color: #eff6ff;
    border-left: 4px solid #2563eb;
    padding: 1rem;
    margin-bottom: 2rem;
    border-radius: 0.25rem;
}

.whitespace-pre-line {
    white-space: pre-line;
}