.v19-lesson,.v19-overview{color:#233e51;background:#fff;line-height:1.95;font-size:18px;overflow-wrap:anywhere}.v19-lesson{padding:28px;border:1px solid #dbe5ec;border-radius:18px;max-width:100%;min-width:0}.v19-lesson h1{font-size:30px;line-height:1.5}.v19-lesson h2{font-size:24px;margin:24px 0 12px}.v19-lesson h3{font-size:20px}.v19-lesson p{margin:12px 0}.v19-lesson li{margin:12px 0}.v19-lead{font-size:20px;color:#1e4c64}.v19-material,.v19-check,.v19-reference{padding:20px;border-radius:12px;background:#f1f7fc;margin:24px 0}.v19-check{background:#f2f8ee}.v19-material pre{font:inherit;font-size:17px;white-space:pre-wrap;overflow-wrap:anywhere;color:#244052;background:#fff;border:1px solid #c8d9e5;padding:16px;border-radius:9px}.v19-figure{margin:24px 0}.v19-figure img{display:block;width:auto;max-width:100%;height:auto;margin:auto;border-radius:12px}.v19-figure img[src$=".svg"]{width:480px}.v19-figure figcaption,.v19-readout{font-size:16px;line-height:1.8;color:#3b5a6d;margin:12px 0}.v19-previous,.v19-sources{padding:16px;margin:24px 0;border:1px solid #cbdce6;border-radius:10px}.v19-lesson summary{cursor:pointer;font-weight:600}.v19-outline li{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;padding:10px 0}.v19-outline small{white-space:nowrap}.v19-overview{padding:26px;border-radius:14px;margin-bottom:24px}.v19-merged-navigation>a{display:block;margin:12px 0}.v19-merged-card .v07-course-card-actions{flex-wrap:wrap;gap:12px}.v19-lesson button,.v19-lesson input{max-width:100%}.v19-lesson .v09-exam-options label{white-space:normal}.v19-lesson a:focus-visible,.v19-overview a:focus-visible{outline:3px solid #aa650b;outline-offset:3px}@media(max-width:600px){.v19-lesson,.v19-overview{padding:16px;font-size:17px}.v19-lesson h1{font-size:25px}.v19-lesson h2{font-size:22px}.v19-lead{font-size:18px}.v19-material,.v19-check,.v19-reference{padding:13px}.v19-material pre{padding:12px;font-size:16px}.v19-lesson ol{padding-left:24px}.v19-figure figcaption,.v19-readout{font-size:16px}}