/* Scoped to the three revised lessons; shared course styles remain unchanged. */
.lesson-toc{background:#fff;border:1px solid #dce7e1;border-radius:12px;padding:18px 22px;margin:24px 0}
.lesson-toc strong{color:#0f2e24}.lesson-toc ul{margin:8px 0 0}.lesson-toc a{text-decoration:underline;text-underline-offset:.16em}
main [id]{scroll-margin-top:120px}
.article-meta{margin:14px 0 22px}
caption{text-align:left;color:#40546b;font-size:.88rem;font-weight:600;margin-bottom:10px}
th[scope="row"]{font-weight:600}
.source-note h2{font-size:1.12rem;margin-top:.4em}
.source-note a{overflow-wrap:anywhere;text-decoration:underline}
.tip p:first-child{margin-top:0}.tip p:last-child{margin-bottom:0}
@media(max-width:640px){h1{font-size:1.8rem;overflow-wrap:break-word}.lesson-toc{padding:16px}main [id]{scroll-margin-top:155px}th,td{padding:9px 8px;min-width:110px}.tip{padding:14px}}