/*
 * custom.css — Harnessing AI / 驾驭工程
 *
 * Scope: small tweaks for MyST admonitions and 3×4 matrix tables.
 * The visual goal is "quiet, readable, RTD-familiar" — no heavy theming.
 */

/* ---------- 3 × 4 matrix table tweaks ---------- */
/* Chapter 05 renders the guardian × zone matrix as a compact table; give
 * it a bit of breathing room and let the cells wrap on narrow screens. */

table.harness-matrix th,
table.harness-matrix td {
    vertical-align: top;
    font-size: 0.9rem;
    line-height: 1.4;
}

table.harness-matrix th {
    background: #f3f6f8;
}

/* ---------- HarnessCard block ---------- */
/* Appendix D template and Ch.11 Acts 1/4 use this class. */

.harness-card {
    border: 1px solid #d0d7de;
    border-radius: 6px;
    padding: 1em 1.25em;
    margin: 1em 0;
    background: #fafbfc;
}

.harness-card h4 {
    margin-top: 0;
}

/* ---------- Mobile polish ---------- */