.drawproblem-region-dialog {
    width: min(900px, calc(100% - 24px));
    max-height: 85vh;
    padding: 0;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    background: #fff;
    color: #1f2937;
    box-sizing: border-box;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.25);
}

.drawproblem-region-dialog[open] {
    display: flex;
    flex-direction: column;
}

.drawproblem-region-dialog::backdrop {
    background: rgba(0, 0, 0, 0.45);
}

.drawproblem-region-dialog-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 20px;
    border-bottom: 1px solid #e2e8f0;
    flex-shrink: 0;
}

.drawproblem-region-dialog-head h3 {
    margin: 0;
}

.drawproblem-region-dialog-head .ui.button {
    margin: 0;
    flex-shrink: 0;
}

.drawproblem-region-dialog-body {
    padding: 16px 20px;
    overflow: auto;
    min-height: 0;
    overflow-wrap: anywhere;
}

.drawproblem-region-dialog-body > .ui.divider:first-child {
    display: none;
}

.drawproblem-region-dialog-enabled details > summary {
    display: inline-flex;
    align-items: center;
    padding: 0.65em 0.85em;
    border: 1px solid #2185d0;
    border-radius: 4px;
    color: #1678c2;
    background: #fff;
    cursor: pointer;
    list-style: none;
    font-size: 0.85rem;
}

.drawproblem-region-dialog-enabled details > summary::-webkit-details-marker {
    display: none;
}

.drawproblem-region-dialog-enabled details > summary:hover {
    background: #eff6ff;
}

.drawproblem-region-dialog-enabled details > summary:focus-visible {
    outline: 2px solid #2185d0;
    outline-offset: 3px;
}