.page-tool--hmac-generator .tool-page {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.page-tool--hmac-generator .tool-workspace {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

.page-tool--hmac-generator .hmac-pane {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.page-tool--hmac-generator .hmac-pane__body {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.page-tool--hmac-generator .hmac-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 12px;
}

.page-tool--hmac-generator .hmac-textarea {
    min-height: 12rem;
}

.page-tool--hmac-generator .hmac-secret {
    font-family: var(--font-mono);
    font-size: 0.88rem;
}

.page-tool--hmac-generator .hmac-hint {
    margin: 0;
    color: var(--muted);
    font-size: 0.8rem;
}

.page-tool--hmac-generator .hmac-advanced {
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--surface-2);
}

.page-tool--hmac-generator .hmac-advanced__summary {
    padding: 10px 12px;
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.74rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    list-style: none;
}

.page-tool--hmac-generator .hmac-advanced__summary::-webkit-details-marker {
    display: none;
}

.page-tool--hmac-generator .hmac-advanced__summary::before {
    content: "+";
    display: inline-block;
    width: 1.1em;
    color: var(--accent);
}

.page-tool--hmac-generator .hmac-advanced[open] .hmac-advanced__summary::before {
    content: "\2212";
}

.page-tool--hmac-generator .hmac-advanced__body {
    padding: 0 12px 12px;
}

.page-tool--hmac-generator .hmac-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.page-tool--hmac-generator .hmac-status {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.78rem;
}

.page-tool--hmac-generator .hmac-output {
    min-height: 6rem;
    padding: 16px;
    border-left: 3px solid var(--accent);
    background: var(--surface-2);
    font-size: 0.95rem;
    line-height: 1.7;
    letter-spacing: 0.02em;
}

.page-tool--hmac-generator .hmac-output--empty {
    border-left-color: var(--line-strong);
    color: var(--faint);
    font-style: italic;
    letter-spacing: 0;
}

.page-tool--hmac-generator .hmac-verify {
    padding-top: 14px;
    border-top: 1px solid var(--line);
}

.page-tool--hmac-generator .hmac-optional {
    color: var(--faint);
    font-weight: 400;
    letter-spacing: 0.02em;
    text-transform: none;
}

.page-tool--hmac-generator .hmac-verify__status {
    margin: 0;
    font-size: 0.82rem;
}

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

@media (max-width: 860px) {
    .page-tool--hmac-generator .tool-workspace {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 520px) {
    .page-tool--hmac-generator .hmac-grid {
        grid-template-columns: 1fr;
    }
}