.lead { color: var(--text-2); max-width: 66ch; line-height: 1.55; }
.seg { display: inline-flex; border: 1px solid var(--line-2); border-radius: 8px; overflow: hidden; margin: 16px 0; }
.seg button { border: 0; background: var(--surface); padding: 7px 16px; font-size: .88rem; cursor: pointer; color: var(--text); }
.seg button.on { background: var(--accent-bg); color: var(--accent-2); font-weight: 650; }
.yj-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.yj-cols textarea { min-height: 360px; font-family: var(--mono); font-size: .82rem; }
.yj-cols .field > span { display: flex; flex-wrap: wrap; gap: 10px; align-items: baseline; }
.yj-err { color: var(--bad); font-size: .84rem; font-weight: 600; }
@media (max-width: 760px) { .yj-cols { grid-template-columns: 1fr; } }