.chains-form {
    margin: 20px;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 8px;
}
.chains-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
}
.chains-form .form-row {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
}
.chains-title {
    margin: 20px;
    font-size: 22px;
    font-weight: 600;
    color: #2c3e50;
}
.chains-info {
    margin: 10px 20px;
    font-size: 14px;
    color: #7f8c8d;
}
.graph-container {
    margin: 20px;
}
.graph-container iframe {
    border: 1px solid #ddd;
    border-radius: 4px;
}
.chains-error {
    margin: 10px 20px;
    color: #e74c3c;
}
.chains-overview {
    margin: 10px 20px;
    padding: 15px;
    background-color: #eef6fb;
    border-radius: 8px;
    font-size: 14px;
}
.chains-overview a {
    color: #2980b9;
}
.chains-overview details {
    margin-top: 8px;
}
.chains-overview summary {
    cursor: pointer;
    color: #2980b9;
}
.chains-size-table {
    margin-top: 8px;
    border-collapse: collapse;
    font-size: 13px;
}
.chains-size-table tr.header-row {
    border-bottom: 1px solid #bbb;
}
.chains-size-table th {
    padding: 4px 12px;
    text-align: right;
}
.chains-size-table td {
    padding: 2px 12px;
    text-align: right;
}
.chains-depth-input {
    width: 60px;
}
.chains-cap-warning {
    color: #e74c3c;
}