.wf-trainer{max-width:1140px;margin:auto}.wf-trainer .panel{margin-bottom:20px}.wf-overview{display:grid;grid-template-columns:1.25fr 1fr;gap:28px;background:linear-gradient(125deg,#fdfdff,#edf3ff 65%,#ffefeb);border-top:4px solid #536bdd}.wf-overview h2{font-size:clamp(23px,3vw,32px);margin:14px 0}.wf-overview p{max-width:57ch}.wf-stats{display:flex;align-items:center;justify-content:space-around;gap:20px}.wf-stats>span{display:flex;flex-direction:column;color:#53627b;font-size:14px}.wf-stats strong{font-size:36px;color:#263958;line-height:1.3}.wf-stats small{font-size:15px;color:#63718a}.wf-tabs,.wf-filter-row>div{display:flex;flex-wrap:wrap;gap:8px}.wf-tabs{margin-bottom:22px}.wf-chip{background:#fff;color:#334665;border:1px solid #c7d1e3;border-radius:12px;padding:11px 15px;cursor:pointer;min-height:44px;font:inherit;line-height:1.3}.wf-chip.is-active{background:#334fbd;color:#fff;border-color:#334fbd;box-shadow:0 4px 12px #304ab122}.wf-chip:hover{border-color:#334fbd}.wf-chip:focus-visible,.wf-trainer button:focus-visible{outline:3px solid #e07756;outline-offset:3px}.wf-filter-row{display:grid;grid-template-columns:180px 1fr;gap:12px;align-items:start;margin:15px 0}.wf-filter-row>span{font-weight:650;padding-top:10px}.wf-study-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.wf-rule{background:#f8faff;border:1px solid #d9e2ef;border-radius:18px;padding:22px;overflow-wrap:anywhere}.wf-rule-top{display:flex;gap:12px;align-items:center;color:#5c6980;font-size:13px}.wf-rule h3{font-size:21px;line-height:1.5}.wf-rule h3>span{color:#d4755e}.wf-rule .wf-example{padding:13px 16px;border-left:3px solid #8495e2;background:#fff;font-size:17px;line-height:1.65}.wf-example strong{color:#314dba}.wf-pagination{display:flex;gap:12px;justify-content:center;align-items:center;margin-top:24px}.wf-families{display:grid;grid-template-columns:1fr 1fr;gap:14px}.wf-family{background:#f5f7fd;border-left:3px solid #dd947d;padding:16px 20px;border-radius:4px 14px 14px 4px;overflow-wrap:anywhere}.wf-family h3{font-size:17px;line-height:1.75}.wf-family p{font-size:14px;color:#52617c}.wf-exercise{max-width:850px;margin-left:auto;margin-right:auto}.wf-exercise-top{display:flex;justify-content:space-between;gap:15px;align-items:center;color:#5b6980}.wf-exercise h2{margin-top:28px}.wf-prompt{font-size:clamp(22px,3vw,29px);line-height:1.65;margin:26px 0;color:#213451}.wf-source{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;padding:16px;background:#f0f3fb;border-radius:14px;margin-bottom:25px;font-size:14px}.wf-source strong{font-size:20px;letter-spacing:.06em;color:#344fb1}.wf-source>span:last-child{margin-left:auto}.wf-answer-row{display:flex;gap:12px;margin-top:8px}.wf-answer-row input{min-width:0;flex:1;padding:15px;border:1px solid #a9b8d2;border-radius:12px;font-size:20px;width:100%;background:#fff;color:#213451}.wf-answer-row input:focus-visible{outline:3px solid #98aae8;outline-offset:2px}.wf-answer-row input:disabled{background:#f2f4f9;opacity:1;color:#52617a}.wf-feedback{padding:20px;border-radius:16px;margin:22px 0;line-height:1.7}.wf-feedback.is-correct{background:#edf7f3;border:1px solid #b7d7ca;color:#214c40}.wf-feedback.is-wrong{background:#fff4ea;border:1px solid #e9c9aa;color:#664321}.wf-feedback strong{font-size:21px}.wf-feedback .help{color:inherit}.wf-stop{display:block;background:none;border:0;color:#576680;text-decoration:underline;font:inherit;padding:13px 0;min-height:44px;cursor:pointer;margin-top:12px}.wf-error{padding:18px;background:#fff1ee;color:#762f28;border:1px solid #e7aaa0;border-radius:16px;margin-bottom:20px}.wf-error p{margin-top:0}.wf-footnote{color:#ecf1ff;background:#20345cba;padding:15px 20px;border-radius:14px;font-size:14px;line-height:1.65}.wf-preview-note{background:#fff8e6;color:#685123;border-radius:12px;padding:14px}.wf-start p,.wf-complete p{max-width:70ch}.wf-empty{border-left:3px solid #8796d8;padding:12px 20px;background:#f2f5fc}.wf-trainer button:disabled{opacity:.55;cursor:default}
@media(max-width:760px){.wf-overview,.wf-study-grid,.wf-families{grid-template-columns:1fr}.wf-stats{justify-content:flex-start;gap:30px}.wf-stats strong{font-size:30px}.wf-filter-row{grid-template-columns:1fr;gap:8px}.wf-filter-row>span{padding-top:0}.wf-rule{padding:17px}.wf-answer-row{flex-direction:column}.wf-answer-row .btn{width:100%}.wf-pagination{flex-wrap:wrap}.wf-source>span:last-child{margin-left:0;width:100%}.wf-exercise-top{font-size:13px}.wf-tabs .wf-chip{flex:1}.wf-trainer .panel{padding:22px 18px}.wf-trainer{min-width:0}.wf-chip{font-size:14px}.wf-prompt{overflow-wrap:anywhere}}