.ui-shell,
.mirror-shell,
.settings-shell {
    --ui-shell-gap: 1rem;
    --ui-shell-card-radius: 1rem;
    --ui-shell-hero-radius: 1.5rem;
}

.settings-shell {
    max-width: 1240px;
}

.ui-shell .card,
.mirror-surface-card,
.settings-card,
.settings-subsection {
    border-radius: var(--ui-shell-card-radius);
}

.ui-shell .btn,
.mirror-section-nav .btn,
.mirror-action-chip,
.settings-primary-actions,
.settings-compact-action-menu {
    min-height: 2.4rem;
}

.ui-shell .form-control,
.ui-shell .form-select,
.ui-shell .btn,
.ui-shell .badge,
.ui-shell .dropdown-menu,
.settings-card .form-control,
.settings-card .form-select {
    border-radius: 0.85rem;
}

.mirror-title-island,
.settings-hero {
    border-radius: var(--ui-shell-hero-radius);
}

.mirror-empty-island {
    max-width: 460px;
}

.settings-preview-summary {
    border: 1px dashed var(--bs-border-color);
    border-radius: 0.875rem;
    background: var(--bs-body-bg);
}

.settings-muted-label {
    font-size: 0.82rem;
    color: var(--bs-secondary-color);
    margin-bottom: 0.25rem;
}

.settings-section-title {
    letter-spacing: 0.04em;
}

.settings-card .card-body {
    padding: 0.9rem 1rem;
}

@media (min-width: 768px) {
    .settings-card .card-body {
        padding: 1rem 1.15rem;
    }
}