.pg {
    max-width: 1180px;
    margin: 0 auto;
    padding: 2rem 1rem 4rem;
}

.pg__head h1 {
    margin: 0 0 .35rem;
    font-size: 1.6rem;
}

.pg__head p {
    margin: 0 0 1.25rem;
    max-width: 58ch;
    color: var(--ink-soft);
}

.pg__bar {
    display: flex;
    align-items: center;
    gap: .6rem;
    flex-wrap: wrap;
    padding: .55rem .7rem;
    border: 1px solid var(--line);
    border-radius: 10px 10px 0 0;
    background: var(--surface-2);
}

.pg__bar label { font-size: .8rem; color: var(--ink-soft); }

.pg__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 0;
    border: 1px solid var(--line);
    border-top: 0;
    border-radius: 0 0 10px 10px;
    overflow: hidden;
    min-height: 26rem;
}

.pg__io {
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--line);
    background: var(--surface);
    min-width: 0;
}

.pg__note {
    margin: .7rem 0 0;
    font-size: .8rem;
    color: var(--ink-soft);
}

/* One column once there is no room for two: the editor needs the width
   more than the output does. */
@media (max-width: 900px) {
    .pg__grid { grid-template-columns: minmax(0, 1fr); }
    .pg__io { border-left: 0; border-top: 1px solid var(--line); }
}