.page-tool--semantic-html-advisor .tool-page {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.page-tool--semantic-html-advisor [hidden] {
    display: none;
}

.page-tool--semantic-html-advisor .tool-layout {
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

.page-tool--semantic-html-advisor .tool-output {
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-width: 0;
}

.page-tool--semantic-html-advisor .tool-picker__body {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.page-tool--semantic-html-advisor .tool-structures {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.page-tool--semantic-html-advisor .tool-structure {
    display: flex;
    flex-direction: column;
    gap: 2px;
    width: 100%;
    padding: 9px 11px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--ink);
    font: inherit;
    text-align: left;
    cursor: pointer;
    transition: border-color 0.15s ease, background-color 0.15s ease;
}

.page-tool--semantic-html-advisor .tool-structure:hover {
    border-color: var(--line-strong);
    background: var(--surface-2);
}

.page-tool--semantic-html-advisor .tool-structure.is-active,
.page-tool--semantic-html-advisor .tool-structure[aria-pressed="true"] {
    border-color: var(--accent);
    background: var(--accent-soft);
}

.page-tool--semantic-html-advisor .tool-structure__name {
    font-size: 0.88rem;
    font-weight: 600;
}

.page-tool--semantic-html-advisor .tool-structure__summary {
    color: var(--muted);
    font-size: 0.76rem;
    line-height: 1.4;
}

.page-tool--semantic-html-advisor .tool-fields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding-top: 12px;
    border-top: 1px solid var(--line);
}

.page-tool--semantic-html-advisor .tool-code__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.page-tool--semantic-html-advisor .tool-status {
    min-height: 0;
    margin: 0;
    padding: 11px 16px;
    border-bottom: 1px solid var(--line);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--muted);
}

.page-tool--semantic-html-advisor .tool-status.status {
    margin: 0;
    border: 0;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    background: transparent;
}

.page-tool--semantic-html-advisor .tool-status.status--error {
    background: var(--danger-soft);
    color: var(--danger);
}

.page-tool--semantic-html-advisor .tool-status.status--success {
    background: var(--success-soft);
    color: var(--success);
}

.page-tool--semantic-html-advisor .tool-code__pre {
    margin: 0;
    padding: 16px;
    max-height: 32rem;
    overflow: auto;
    background: var(--surface-2);
}

.page-tool--semantic-html-advisor .tool-code__code {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.6;
    white-space: pre;
    color: var(--ink-2);
}

.page-tool--semantic-html-advisor .tool-guide__list {
    display: grid;
    gap: 10px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.page-tool--semantic-html-advisor .tool-guide__item {
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--surface-2);
}

.page-tool--semantic-html-advisor .tool-guide__head {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 8px;
}

.page-tool--semantic-html-advisor .tool-guide__tag {
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 0.82rem;
}

.page-tool--semantic-html-advisor .tool-guide__replaces {
    color: var(--faint);
    font-family: var(--font-mono);
    font-size: 0.74rem;
}

.page-tool--semantic-html-advisor .tool-guide__note {
    margin: 5px 0 0;
    color: var(--muted);
    font-size: 0.84rem;
    line-height: 1.5;
}

.page-tool--semantic-html-advisor .tool-tips {
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--line);
}

.page-tool--semantic-html-advisor .tool-tips__title {
    margin: 0 0 8px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--faint);
}

.page-tool--semantic-html-advisor .tool-tips__list {
    display: grid;
    gap: 4px;
    margin: 0;
    padding-left: 18px;
    color: var(--muted);
    font-size: 0.84rem;
    line-height: 1.55;
}

.page-tool--semantic-html-advisor .tool-about__text {
    max-width: 80ch;
    margin: 0;
    color: var(--muted);
    font-size: 0.9rem;
}

@media (max-width: 980px) {
    .page-tool--semantic-html-advisor .tool-layout {
        grid-template-columns: 1fr;
    }

    .page-tool--semantic-html-advisor .tool-code__pre {
        max-height: 24rem;
    }
}

@media (max-width: 640px) {
    .page-tool--semantic-html-advisor .tool-fields {
        grid-template-columns: 1fr;
    }

    .page-tool--semantic-html-advisor .tool-code__actions {
        width: 100%;
    }
}