.circuit-lesson{margin:42px 0;padding:28px;border:1px solid #ccc;border-top:4px solid var(--accent);background:#fff;color:#151515;scroll-margin-top:28px}.circuit-lesson h2{font-size:clamp(24px,3vw,34px);line-height:1.2}.circuit-lesson figure{margin:22px 0}.circuit-scroll{overflow-x:auto}.circuit-svg{min-width:520px;display:block;width:100%;height:auto;background:#faf9f7;border:1px solid #eee}.circuit-svg text{font:16px system-ui,sans-serif;fill:#151515;stroke:none}.circuit-lesson figcaption{font-size:15px;line-height:1.7;margin-top:15px}.circuit-tasks{padding-left:26px}.circuit-tasks>li{padding:12px 0 20px 8px;border-bottom:1px solid #ddd}.circuit-tasks li::marker{color:var(--accent);font-weight:700}.circuit-tasks p{font-size:16px;line-height:1.65}.circuit-tasks details{margin:9px 0;padding:12px 16px;background:#f4f4f4;border:1px solid #ddd}.circuit-tasks summary{cursor:pointer;font-size:15px;font-weight:600}.circuit-tasks details p{margin-bottom:4px}.circuit-next{font-size:14px!important;color:#555}.circuit-index{columns:2;line-height:1.5}.circuit-index li{break-inside:avoid;margin:0 0 12px}.circuit-guide{padding:24px;background:#f3efed;border-left:4px solid var(--accent);margin:24px 0}.circuit-guide p{line-height:1.7}.exercise-link{padding:22px;border:1px solid #ccc;margin:24px 0;background:#fff}@media(max-width:600px){.circuit-lesson{padding:16px 12px}.circuit-index{columns:1}.circuit-svg text{font-size:17px}.circuit-tasks{padding-left:22px}}