header nav{display:flex;flex-wrap:wrap;gap:16px}header nav a[aria-current]{font-weight:700;color:#173e55}main{max-width:820px}.course-layout{display:block}aside{margin:24px 0}article{min-width:0}article h2{font-size:24px}article section{margin-top:24px}#lesson-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}#lesson-nav button{margin:0;text-align:left;background:#edf3f6;color:#173e55;padding:10px;font-size:14px}#lesson-nav button[aria-current]{background:#173e55;color:#fff}#lesson-nav small{display:block;font-size:12px}.note{font-size:14px;color:#607582}.goal{padding:14px;background:#edf3f6;border-radius:6px}.question{font-size:20px;font-weight:600;border-left:3px solid #a7956e;padding-left:16px}.actions{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}.actions button,button.text-button{width:auto;margin:0}.button{display:inline-block;padding:12px 18px;background:#173e55;color:white;border-radius:8px;text-decoration:none}label{display:block;margin:20px 0 8px}label.check{display:flex;align-items:flex-start;font-weight:400;font-size:14px}input[type=checkbox]{width:20px;height:20px;flex-shrink:0;margin:4px 0 0;accent-color:#173e55}details{border:1px solid #dce3e8;border-radius:8px;padding:14px 16px;margin:18px 0}summary{cursor:pointer;font-weight:600;font-size:16px}details details{font-size:14px}li{margin:10px 0}#save-status,#admin-status{white-space:pre-wrap;overflow-wrap:anywhere}.axis{border-top:1px solid #e0e7ec;margin-top:20px}footer{text-align:center;padding:24px;font-size:14px;color:#607582}#question-prev,#question-next{font-size:14px}#start-ai{display:block;text-align:center;font-size:18px;padding:16px}summary:focus-visible{outline:3px solid #6599b6;outline-offset:4px}@media(max-width:640px){#lesson-nav{grid-template-columns:1fr}header nav{gap:10px}article h2{font-size:21px}.actions button{width:100%}}
.seven-stages{padding:16px;border-left:3px solid #a7956e;background:#f5f2eb;line-height:2;font-weight:600}
.professional-message span{font-size:clamp(17px,3vw,24px)}.professional-message strong{font-size:clamp(25px,4.3vw,35px);line-height:1.65;overflow-wrap:anywhere}@media(max-width:480px){.professional-message strong{font-size:26px}}
.professional-message .message-ending{color:#000;font-style:normal}

.small-step{padding:20px;background:#edf4f7;border:1px solid #bed0dc;border-radius:12px}.small-step h3{color:#173e55}.small-step #tiny-action{font-size:19px;line-height:1.8;font-weight:600}.small-step form{background:white;padding:16px;border-radius:10px}.small-step textarea{width:100%;font:inherit;padding:12px;line-height:1.8}.small-step .note{line-height:1.7}@media(max-width:640px){.small-step{padding:12px}.small-step form{padding:12px}}

#lesson{scroll-margin-top:20px}#lesson-title:focus{outline:none}