#main-content .sign-choices>.route-road-choice{position:relative;padding:0;overflow:hidden;isolation:isolate;background:#183e35}#main-content .route-road-choice>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}#main-content .route-road-number{position:absolute;z-index:2;top:12px;left:12px;display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:#fff;color:#173f35;font-size:16px;font-weight:800}#main-content .route-road-caption{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:20px;background:linear-gradient(180deg,transparent 25%,rgba(8,30,24,.18) 45%,rgba(8,30,24,.94) 100%)}#main-content .route-road-choice .route-road-caption h2{margin:0 0 12px;color:white;font-size:24px;line-height:1.22;text-shadow:0 1px 3px #102b22}#main-content .route-road-caption strong{color:#e2f1b5;font-size:14px;line-height:1.4}@media(max-width:520px){#main-content .route-road-caption{padding:15px}#main-content .route-road-choice .route-road-caption h2{font-size:20px;margin-bottom:9px}#main-content .route-road-caption strong{font-size:12px}#main-content .route-road-number{width:29px;height:29px;top:10px;left:10px;font-size:13px}}

/* Fifth trajectory tile and compact topic explanations. */
#main-content .lesson-guide-topics{margin:0 0 14px;padding-left:20px;font-size:15px;font-weight:700;line-height:1.45;color:var(--vd-ink)}
#main-content .lesson-guide-topics li{padding:0;margin:0 0 7px}
.lesson-guide-sections{display:grid;gap:12px;margin:28px 0}.lesson-guide-sections details{margin:0;border:1px solid var(--vd-border);border-radius:16px;background:#fff;overflow:hidden}.lesson-guide-sections summary{padding:21px 24px;font-size:19px;font-weight:750;cursor:pointer;line-height:1.4;color:var(--vd-ink)}.lesson-guide-sections details[open]{border-color:#8db6ff;box-shadow:0 8px 26px #245cda0a}.lesson-guide-sections details[open] summary{background:#eaf2ff}.lesson-guide-sections details>div{padding:4px 24px 24px}.lesson-guide-sections details a{font-weight:700;text-underline-offset:4px}
@media(max-width:700px){#main-content .lesson-guide-topics{font-size:13px;line-height:1.4;padding-left:18px}#main-content .lesson-guide-topics li{margin-bottom:7px}.lesson-guide-sections summary{padding:17px;font-size:17px}.lesson-guide-sections details>div{padding:3px 17px 20px}}