.m55-explain-panel {
    margin: 1rem 0;
    border: 1px solid var(--border, #d8dde6);
    border-radius: 16px;
    background: var(--surface, #fff);
    overflow: hidden;
}

.m55-explain-details > summary {
    cursor: pointer;
    list-style: none;
    padding: 1rem;
    font-weight: 700;
}

.m55-explain-details > summary::-webkit-details-marker {
    display: none;
}

.m55-explain-body {
    padding: 0 1rem 1rem;
}

.m55-explain-intro {
    margin: 0 0 1rem;
}

.m55-source-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: .75rem;
}

.m55-source-card,
.m55-explain-section,
.m55-explain-item {
    border: 1px solid var(--border, #d8dde6);
    border-radius: 12px;
}

.m55-source-card {
    padding: .8rem;
}

.m55-source-card strong,
.m55-source-card small {
    display: block;
}

.m55-source-card small {
    margin: .25rem 0 .65rem;
}

.m55-source-card button {
    width: 100%;
}

.m55-capture-status[data-status="ready"] {
    font-weight: 700;
}

.m55-explain-result {
    margin-top: 1rem;
    border-top: 1px solid var(--border, #d8dde6);
    padding-top: 1rem;
}

.m55-explain-result[data-status="error"] {
    border-top-style: dashed;
}

.m55-explain-sections {
    display: grid;
    gap: .75rem;
    margin-top: .75rem;
}

.m55-explain-section,
.m55-explain-item {
    padding: .75rem;
}

.m55-explain-item {
    margin-top: .65rem;
}

.m55-section-heading {
    display: flex;
    justify-content: space-between;
    gap: .75rem;
    align-items: center;
    margin-bottom: .65rem;
}

.m55-explain-item h3 {
    margin: 0 0 .35rem;
    font-size: 1rem;
}

.m55-explain-item p {
    margin: .35rem 0;
}

.m55-meta {
    display: grid;
    gap: .25rem;
    margin-top: .6rem;
}

.m55-meta-row {
    display: grid;
    grid-template-columns: minmax(70px, auto) 1fr;
    gap: .5rem;
    align-items: baseline;
    font-size: .82rem;
}

.m55-meta-row code {
    overflow-wrap: anywhere;
    white-space: normal;
}

.m55-caveat,
.m55-list {
    font-size: .88rem;
}

.m55-list {
    margin-top: .75rem;
}

.m55-list ul {
    margin: .4rem 0 0;
    padding-left: 1.2rem;
}

@media (min-width: 760px) {
    .m55-source-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}