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

/* Studio layout: the corner controls and their CSS output share the left
   column, while the live preview fills a large column on the right so that
   shaping the element is the dominant, front-and-center task. */
.page-tool--border-radius-generator .brg-studio {
    display: grid;
    grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
    grid-template-areas:
        "controls preview"
        "output preview";
    gap: 16px;
    align-items: stretch;
}

.page-tool--border-radius-generator .brg-controls {
    grid-area: controls;
    min-width: 0;
}

.page-tool--border-radius-generator .brg-preview {
    grid-area: preview;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.page-tool--border-radius-generator .brg-output {
    grid-area: output;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.page-tool--border-radius-generator .brg-controls__body {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.page-tool--border-radius-generator .brg-hint {
    margin: 0;
    color: var(--muted);
    font-size: 0.82rem;
}

.page-tool--border-radius-generator .brg-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.04em;
    color: var(--muted);
    cursor: pointer;
}

.page-tool--border-radius-generator .brg-toggle input {
    accent-color: var(--accent);
}

.page-tool--border-radius-generator .brg-group {
    display: grid;
    gap: 16px;
}

.page-tool--border-radius-generator .brg-group[hidden] {
    display: none;
}

/* Slider control: a full-width range with a compact numeric readout. */
.page-tool--border-radius-generator .brg-control {
    display: grid;
    gap: 3px;
    min-width: 0;
}

.page-tool--border-radius-generator .brg-control__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    min-width: 0;
}

.page-tool--border-radius-generator .brg-control__label {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--faint);
}

.page-tool--border-radius-generator .brg-control__range {
    width: 100%;
    height: 1.6rem;
    margin: 0;
    accent-color: var(--accent);
    cursor: pointer;
}

.page-tool--border-radius-generator .brg-control__number {
    flex: 0 0 4.5rem;
    width: 4.5rem;
    min-height: 1.9rem;
    padding: 0.15rem 0.35rem;
    border-color: var(--line);
    background: var(--surface-3);
    color: var(--ink-2);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-align: right;
}

/* Live preview — fills the column so the shape is always the largest element. */
.page-tool--border-radius-generator .brg-preview__body {
    display: flex;
    flex-direction: column;
    gap: 14px;
    flex: 1 1 auto;
}

.page-tool--border-radius-generator .brg-stage {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1 1 auto;
    min-height: 420px;
    padding: 32px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-3);
    overflow: hidden;
}

.page-tool--border-radius-generator .brg-demo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 220px;
    height: 220px;
    color: rgba(255, 255, 255, 0.9);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    user-select: none;
}

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

.page-tool--border-radius-generator .brg-options__summary {
    padding: 8px 12px;
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    cursor: pointer;
}

.page-tool--border-radius-generator .brg-options__summary:hover {
    color: var(--ink);
}

.page-tool--border-radius-generator .brg-preview-controls {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    padding: 0 12px 12px;
}

.page-tool--border-radius-generator .brg-color__picker {
    width: 100%;
    height: 2.35rem;
    min-height: 2.35rem;
    padding: 0.2rem;
}

.page-tool--border-radius-generator .brg-output__body {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1 1 auto;
}

.page-tool--border-radius-generator .brg-status {
    margin: 0;
    font-size: 0.8rem;
}

.page-tool--border-radius-generator .brg-code {
    flex: 1 1 auto;
    min-height: 6rem;
    max-height: 20rem;
}

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

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

.page-tool--border-radius-generator .brg-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--border-radius-generator .brg-studio {
        grid-template-columns: 1fr;
        grid-template-areas:
            "controls"
            "preview"
            "output";
    }

    .page-tool--border-radius-generator .brg-stage {
        min-height: 300px;
    }
}

@media (max-width: 560px) {
    .page-tool--border-radius-generator .brg-stage {
        min-height: 240px;
        padding: 20px;
    }

    .page-tool--border-radius-generator .brg-preview-controls {
        grid-template-columns: 1fr;
    }
}