body.lesson section{padding:40px 0}
.lesson-video{width:100%;max-width:960px;background:#000;border-radius:12px;display:block}
.work{display:grid;gap:14px}
.step{border:1px solid #1c2c4d;border-radius:12px;padding:14px 16px;background:#0b1428}
.step h3{margin:0 0 8px;color:#fff;font-size:18px}
.step dl{display:grid;grid-template-columns:minmax(120px,180px) 1fr;gap:4px 12px;margin:8px 0 0}
.step dt{color:#8eb0ff}
.step dd{margin:0;font-family:ui-monospace,monospace;font-size:14px;overflow-wrap:anywhere}
form fieldset{border:1px solid #1c2c4d;border-radius:12px;margin:0 0 16px;padding:12px 16px}
form label{display:block;margin:10px 0;line-height:1.4}
.explain{margin-top:14px;padding:12px 14px;background:#10203d;border-radius:10px}
#progress-status{color:#9aa8c2}
@media(max-width:700px){
  .step dl{grid-template-columns:1fr}
  .lesson .wrap{padding:0 16px}
  .lesson-video{border-radius:0}
}