@font-face{font-family:Display;src:url(display.ttf)}*{box-sizing:border-box}body{margin:0;background:#f5f5f2;color:#161914;font:16px Arial,sans-serif}header{background:#050505;color:white;padding:12px 24px;display:flex;align-items:center;justify-content:space-between}header img{width:78px;height:58px;object-fit:contain}header span{font-size:12px;color:#ccc}main{max-width:740px;margin:auto;padding:30px 22px 70px}h1,h2{font-family:Display,Arial;font-weight:400}h1{font-size:32px;margin:20px 0 10px}h2{font-size:23px}p,small{color:#62665e;line-height:1.5}button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #dc4d01;outline-offset:3px}.track{width:100%;text-align:left;background:white;padding:30px 24px;margin:18px 0;border-left:5px solid var(--accent);display:flex;align-items:center;justify-content:space-between}.track b{font-family:Display;font-size:24px;font-weight:400}.track small{display:block;margin-top:9px}.arrow{font-size:25px}.back{padding:8px 0;color:#62665e}.row{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;text-align:left;padding:20px 4px;border-bottom:1px solid #ddd}.row strong{display:block;margin-bottom:6px}.row small{font-size:14px}.circle{border:1px solid #aaa;border-radius:50%;min-width:26px;height:26px;text-align:center;line-height:24px}.done{background:#161914;color:white;border-color:#161914}.primary{background:#161914;color:white;border-radius:4px;padding:17px 24px;width:100%;margin-top:26px}.pencil{font-size:23px;padding:12px}.meta{font-size:13px;text-transform:uppercase;letter-spacing:1.5px;color:#62665e}details{border-bottom:1px solid #ddd}summary{padding:23px 0;font-weight:bold;cursor:pointer;display:flex;justify-content:space-between}summary span{font-weight:normal;color:#62665e;font-size:14px}details .row{padding-left:14px;padding-right:14px;background:white}dialog{border:0;border-radius:6px;padding:28px;width:min(92vw,480px)}dialog::backdrop{background:#0008}input,textarea{width:100%;padding:12px;border:1px solid #bbb;border-radius:3px;font:inherit;margin:8px 0 18px}label{font-size:14px}footer{font-size:12px;margin-top:36px;color:#777}.bar{height:4px;background:#ddd;margin:24px 0}.bar div{height:4px;background:var(--accent)}.notice{font-size:13px;background:white;padding:12px;margin-top:20px}@media(max-width:480px){h1{font-size:28px}main{padding-top:20px}.track{padding:25px 18px}}
header a{color:white;text-decoration:none}.top-actions{display:flex;gap:16px;align-items:center}.top-actions button{font-size:13px;color:#eee}a{color:inherit}nav{display:flex;gap:18px;flex-wrap:wrap;border-bottom:1px solid #ddd;margin-bottom:26px}nav button{padding:15px 0;font-weight:bold}nav button[aria-current=page]{border-bottom:3px solid #dc4d01}.banner{padding:11px 22px;background:#e9eddf;color:#36452d;font-size:13px;line-height:1.5}.banner a{font-weight:bold}.badge{display:inline-block;font-size:12px;padding:4px 8px;background:#e9eddf;color:#36452d;border-radius:3px}.muted{color:#62665e}.empty{padding:24px 0;color:#62665e}.toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.toolbar .primary{width:auto;margin:0}.secondary{padding:13px 18px;border:1px solid #b9bcb5;border-radius:3px;background:white}.section{padding:24px 0;border-bottom:1px solid #ddd}.section:first-child{padding-top:0}select{display:block;width:100%;padding:12px;border:1px solid #bbb;border-radius:3px;font:inherit;margin:8px 0 18px;background:white}textarea{min-height:90px}button:disabled{opacity:.55;cursor:not-allowed}.error{color:#9b2a16;line-height:1.5}.success{color:#375329}.line{white-space:pre-wrap;overflow-wrap:anywhere}.small{font-size:13px}.tabs{display:flex;gap:10px}.tabs button{flex:1;padding:18px;background:white;border-left:4px solid #719152;text-align:left}.mobile-only{display:none}h3{font-size:17px;line-height:1.35}#status{min-height:24px;line-height:1.5;margin-bottom:16px}dialog{max-height:88vh;overflow-y:auto}dialog h2{margin-top:0}dialog .primary{margin-top:12px}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.exercise-editor{padding:20px 0;border-bottom:1px solid #ddd}.exercise-editor input,.exercise-editor textarea{margin-bottom:12px}.summary-counts{display:flex;gap:28px;margin:25px 0}.summary-counts b{font-size:28px;font-family:Display;font-weight:400;display:block}.pill{font-size:12px;white-space:nowrap}input[type=checkbox]{width:auto;margin:0 8px 0 0}label.check{display:flex;align-items:flex-start;gap:8px;line-height:1.5}time{font-size:12px;color:#62665e}.unread{border-left:4px solid #dc4d01;padding-left:16px}.notice a{display:inline-block;margin-top:8px}.install-help{border:0;text-align:left}.preview-switch{font-weight:bold;text-decoration:underline}.track{min-height:105px}.feedback-body{font-size:15px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}@media(max-width:480px){header{padding:10px 16px}header img{width:66px}.top-actions{gap:12px}.field-grid{grid-template-columns:1fr;gap:0}.summary-counts{gap:20px}.mobile-only{display:block}nav{gap:18px}.row{align-items:flex-start}.track b{font-size:23px}}

.set-head,.set-row{display:grid;grid-template-columns:32px 1fr 1fr;gap:10px;align-items:center}.set-head{font-size:12px;color:#62665e;margin-top:20px}.set-row.no-load{grid-template-columns:32px 1fr}.set-row input{margin:5px 0 12px;min-width:0}.set-head+ .set-row{margin-top:4px}dialog textarea{min-height:64px}dialog p{margin:10px 0}dialog h2{font-size:22px}.set-head.no-load{grid-template-columns:32px 1fr}@media(max-width:480px){dialog{padding:18px;max-height:94vh}dialog h2{font-size:20px;margin-bottom:10px}dialog p{margin:8px 0}dialog input,dialog select{margin:5px 0 10px}dialog textarea{margin:5px 0 10px;min-height:52px}dialog .primary{padding:14px 18px}.set-head{margin-top:10px}.set-row input{margin-bottom:8px}}

.weight-heading{margin:18px 0 4px}.weight-column{font-weight:700;color:#161914}.set-row input[name^="weight-"]{border-color:#719152;background:#fff}.set-head{grid-template-columns:32px minmax(0,1.2fr) minmax(0,1fr)}.set-row{grid-template-columns:32px minmax(0,1.2fr) minmax(0,1fr)}
.messages{max-height:48vh;overflow:auto;margin-bottom:16px}.messages time,.messages small{display:block;margin-top:5px}.sent-message{margin-left:20px;border-left:3px solid #719152}.received-message{margin-right:20px;border-left:3px solid #dc4d01}.top-actions{flex-wrap:wrap}.top-actions button{min-height:40px} .unread{border-left:4px solid #dc4d01}

.exercise-demos{margin:20px 0}.exercise-demo{padding:12px 0;border-top:1px solid #ddd}.exercise-demo>strong{display:block;margin-bottom:8px}.exercise-demo video{display:block;width:100%;max-height:420px;background:#111;border-radius:8px;margin:8px 0}.exercise-demo .small{margin:8px 0}