body {
    background-color: #f9fafb;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: #111827;
}

.card {
    border-radius: 0.5rem;
    border: 1px solid #e5e7eb;
}

.btn-primary {
    background-color: #1e3a8a;
    border-color: #1e3a8a;
}

.btn-primary:hover {
    background-color: #1c327a;
    border-color: #1c327a;
}

.btn-secondary {
    background-color: #f59e0b;
    border-color: #f59e0b;
}

.genealogy-tree ul {
    padding-left: 20px;
    list-style-type: none;
}

.genealogy-tree li {
    margin: 10px 0;
    position: relative;
}

.genealogy-tree li::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -20px;
    border-left: 1px solid #ccc;
    border-bottom: 1px solid #ccc;
    width: 20px;
    height: 20px;
}

.genealogy-tree li:first-child::before {
    border-top: 1px solid #ccc;
}

.genealogy-tree li:last-child::before {
    height: 20px;
}