.tool-header .page-title {
    max-width: 9ch;
}

.workbench {
    display: grid;
    grid-template-columns: 1fr;
    overflow: hidden;
}

.workbench-panel {
    min-width: 0;
}

.output-panel {
    display: grid;
    grid-template-rows: auto 1fr auto;
    border-top: 1px solid var(--line-strong);
    background: color-mix(in srgb, var(--surface) 76%, var(--background));
}

.panel-heading {
    min-height: 70px;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    padding: 17px 15px;
    border-bottom: 1px solid var(--line);
}

.panel-heading > div:first-child {
    display: flex;
    gap: 10px;
    align-items: baseline;
}

.panel-heading h2 {
    margin: 0;
    font-size: 0.96rem;
    line-height: 1.2;
}

.panel-body {
    padding: 22px 15px 20px;
}

input,
select {
    min-height: 44px;
    padding: 10px 12px;
}

textarea {
    min-height: 260px;
    padding: 13px 14px;
    resize: vertical;
    font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
    font-size: 0.84rem;
    line-height: 1.6;
    tab-size: 4;
}

.paths-field {
    margin-top: 18px;
}

.field-hint {
    margin: 0;
    color: var(--muted);
    font-size: 0.76rem;
}

.panel-actions,
.output-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.output-heading {
    align-items: flex-start;
    flex-direction: column;
}

.output-actions {
    width: 100%;
}

.output-actions .button {
    flex: 1;
}

.panel-actions {
    margin-top: 18px;
}

.button {
    min-height: 42px;
    gap: 7px;
    padding: 9px 14px;
    font-size: 0.79rem;
}

.button-compact {
    min-height: 38px;
    padding: 8px 12px;
    font-size: 0.74rem;
}

.button svg {
    width: 15px;
    height: 15px;
}

#tree-output {
    min-height: 320px;
    margin: 0;
    padding: 20px 15px;
    overflow: auto;
    color: var(--code-text);
    background:
        linear-gradient(rgba(255, 255, 255, 0.015), rgba(255, 255, 255, 0)),
        var(--code-background);
    font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
    font-size: clamp(0.79rem, 0.74rem + 0.2vw, 0.9rem);
    line-height: 1.62;
    tab-size: 4;
    white-space: pre;
}

#tree-output:focus-visible {
    position: relative;
    z-index: 1;
    outline-offset: -4px;
}

.status-row {
    min-height: 42px;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    padding: 10px 15px;
    border-top: 1px solid var(--line);
    color: var(--quiet);
    font-size: 0.7rem;
}

#action-status {
    color: var(--accent-strong);
    font-weight: 700;
}

.quick-guide {
    max-width: 900px;
    padding: clamp(70px, 10vw, 116px) 0 12px;
}

.quick-guide h2 {
    max-width: 12ch;
    margin: 0 0 38px;
}

.quick-guide ol {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.quick-guide li {
    display: grid;
    grid-template-columns: 26px 1fr;
    gap: 10px;
    align-items: start;
    padding-top: 14px;
    border-top: 1px solid var(--line);
}

.quick-guide li > span {
    color: var(--accent);
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.15rem;
}

.quick-guide p {
    margin: 0;
    color: var(--muted);
    font-size: 0.9rem;
}

@media (min-width: 621px) {
    .panel-heading,
    .panel-body {
        padding-right: 20px;
        padding-left: 20px;
    }

    .panel-heading {
        min-height: 76px;
    }

    .output-heading {
        align-items: center;
        flex-direction: row;
    }

    .output-actions {
        width: auto;
    }

    .output-actions .button {
        flex: none;
    }

    textarea {
        min-height: 292px;
    }

    #tree-output {
        min-height: 360px;
        padding: 24px;
    }

    .status-row {
        padding-right: 20px;
        padding-left: 20px;
    }

    .quick-guide ol {
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
    }

}

@media (min-width: 841px) {
    .workbench {
        grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    }

    .output-panel {
        border-top: 0;
        border-left: 1px solid var(--line-strong);
    }

    #tree-output {
        min-height: 446px;
    }
}