.markdown-source-card {
    margin-top: 18px;
    overflow: hidden;
    border: 1px solid #d7dee8;
    border-radius: 6px;
    background: #fff;
}

.markdown-source-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 58px;
    padding: 10px 13px;
    border-bottom: 1px solid #d7dee8;
    background: #f6f8fb;
}

.markdown-source-card__header h3 {
    margin: 2px 0 0;
    color: #17243a;
    font-size: 13px;
}

.markdown-source-card__eyebrow {
    color: #e8177f;
    font-size: 8px;
    font-weight: 700;
}

.markdown-source-card__header output {
    color: #7b889c;
    font-size: 8px;
    white-space: nowrap;
}

.markdown-source-editor {
    display: block;
    width: 100%;
    min-height: 330px;
    padding: 14px;
    color: #233249;
    border: 0;
    outline: 0;
    resize: vertical;
    background: #fff;
    font: 10px/1.55 Consolas, "Courier New", monospace;
    tab-size: 4;
}

.markdown-source-editor:focus {
    box-shadow: inset 3px 0 0 #e8177f;
}

.markdown-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
}

.markdown-actions .btn-demo-action {
    margin-top: 0;
}

.markdown-roundtrip-note {
    display: grid;
    gap: 7px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid #e0e5ec;
}

.markdown-roundtrip-note > strong {
    color: #253750;
    font-size: 10px;
}

.markdown-roundtrip-note > div {
    display: grid;
    grid-template-columns: 92px minmax(0, 1fr);
    align-items: baseline;
    gap: 9px;
}

.markdown-roundtrip-note code {
    color: #c21370;
    font-size: 8px;
    font-weight: 600;
}

.markdown-roundtrip-note span {
    color: #748197;
    font-size: 9px;
    line-height: 1.4;
}

.source-markdown-icon {
    display: inline-grid;
    place-items: center;
    width: 27px;
    height: 27px;
    color: #fff;
    border-radius: 4px;
    background: #263850;
    font-family: inherit;
    font-size: 8px;
    font-weight: 700;
}

@media (max-width: 720px) {
    .markdown-source-editor { min-height: 260px; }
}