.page-tool--chmod-calculator .tool-page {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

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

.page-tool--chmod-calculator .chmod-result {
    position: sticky;
    top: 16px;
}

.page-tool--chmod-calculator .chmod-result__body {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

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

.page-tool--chmod-calculator .chmod-output {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-2);
}

.page-tool--chmod-calculator .chmod-output__label {
    font-family: var(--font-mono);
    font-size: 0.66rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--faint);
}

.page-tool--chmod-calculator .chmod-output__value {
    font-family: var(--font-mono);
    font-size: 1.6rem;
    line-height: 1.15;
    color: var(--ink);
    overflow-wrap: anywhere;
}

.page-tool--chmod-calculator .chmod-output__value--octal {
    font-size: 2.4rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--accent);
}

.page-tool--chmod-calculator .chmod-command {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.page-tool--chmod-calculator .chmod-command__row {
    display: flex;
    gap: 8px;
}

.page-tool--chmod-calculator .chmod-command__input {
    flex: 1 1 auto;
    min-width: 0;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.page-tool--chmod-calculator .chmod-fields {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.page-tool--chmod-calculator .chmod-hint {
    margin: 0;
    color: var(--muted);
    font-size: 0.78rem;
}

.page-tool--chmod-calculator .chmod-hint code,
.page-tool--chmod-calculator .chmod-perm__code,
.page-tool--chmod-calculator .chmod-check code {
    padding: 0.05rem 0.35rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-xs);
    background: var(--surface-3);
    color: var(--ink-2);
    font-family: var(--font-mono);
    font-size: 0.9em;
}

.page-tool--chmod-calculator .chmod-check {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--ink-2);
    font-size: 0.9rem;
    cursor: pointer;
}

.page-tool--chmod-calculator .chmod-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.page-tool--chmod-calculator .chmod-matrix {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.page-tool--chmod-calculator .chmod-col {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin: 0;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-2);
}

.page-tool--chmod-calculator .chmod-col__legend {
    padding: 0 4px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
}

.page-tool--chmod-calculator .chmod-perm {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 6px;
    border-radius: var(--radius-xs);
    cursor: pointer;
}

.page-tool--chmod-calculator .chmod-perm:hover {
    background: var(--surface-3);
}

.page-tool--chmod-calculator .chmod-perm input {
    flex: 0 0 auto;
    width: 1rem;
    height: 1rem;
    accent-color: var(--accent);
}

.page-tool--chmod-calculator .chmod-perm__name {
    flex: 1 1 auto;
    font-size: 0.88rem;
    color: var(--ink);
}

.page-tool--chmod-calculator .chmod-presets {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    padding-top: 14px;
    border-top: 1px solid var(--line);
}

.page-tool--chmod-calculator .chmod-presets__label {
    font-family: var(--font-mono);
    font-size: 0.66rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--faint);
}

.page-tool--chmod-calculator .chmod-presets__list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.page-tool--chmod-calculator .chmod-preset {
    padding: 0.35rem 0.7rem;
    border: 1px solid var(--line-2);
    border-radius: var(--radius-pill);
    background: var(--surface);
    color: var(--ink-2);
    font-family: var(--font-mono);
    font-size: 0.82rem;
    cursor: pointer;
    transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.page-tool--chmod-calculator .chmod-preset:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.page-tool--chmod-calculator .chmod-preset.is-active {
    border-color: var(--accent);
    background: var(--accent-soft);
    color: var(--accent);
    font-weight: 700;
}

.page-tool--chmod-calculator .chmod-advanced {
    margin-top: 14px;
    border-top: 1px solid var(--line);
    padding-top: 12px;
}

.page-tool--chmod-calculator .chmod-advanced > summary {
    cursor: pointer;
    font-size: 0.84rem;
    color: var(--muted);
}

.page-tool--chmod-calculator .chmod-advanced > summary:hover {
    color: var(--ink);
}

.page-tool--chmod-calculator .chmod-advanced__body {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.page-tool--chmod-calculator .chmod-advanced__body .chmod-perm {
    flex: 1 1 140px;
    border: 1px solid var(--line);
    background: var(--surface-2);
}

.page-tool--chmod-calculator .chmod-summary {
    display: flex;
    flex-direction: column;
    gap: 4px;
    border-top: 1px solid var(--line);
    padding-top: 12px;
}

.page-tool--chmod-calculator .chmod-summary__row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    font-size: 0.84rem;
}

.page-tool--chmod-calculator .chmod-summary__who {
    font-family: var(--font-mono);
    color: var(--muted);
}

.page-tool--chmod-calculator .chmod-summary__detail {
    color: var(--ink-2);
    text-align: right;
}

.page-tool--chmod-calculator .chmod-result .status {
    margin: 0;
}

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

.page-tool--chmod-calculator .tool-about__text code {
    padding: 0.05rem 0.3rem;
    border-radius: var(--radius-xs);
    background: var(--surface-3);
    color: var(--ink-2);
    font-family: var(--font-mono);
}

@media (max-width: 900px) {
    .page-tool--chmod-calculator .chmod-workspace {
        grid-template-columns: 1fr;
    }

    .page-tool--chmod-calculator .chmod-result {
        position: static;
        order: -1;
    }
}

@media (max-width: 560px) {
    .page-tool--chmod-calculator .chmod-matrix {
        grid-template-columns: 1fr;
    }

    .page-tool--chmod-calculator .chmod-outputs {
        grid-template-columns: 1fr;
    }

    .page-tool--chmod-calculator .chmod-command__row {
        flex-wrap: wrap;
    }

    .page-tool--chmod-calculator .chmod-command__input {
        flex: 1 1 100%;
    }
}