:root{--navy:#142630;--navy2:#1f3948;--gold:#b78e59;--ink:#182d38;--muted:#627580;--line:#dce3e5;--paper:#f7f7f3;--white:#fff;--green:#1e6c50;--red:#9f3c37}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Tahoma,Arial,sans-serif;font-size:16px;line-height:1.8}header{background:var(--navy);color:#fff;padding:22px max(24px,calc((100vw - 1260px)/2));display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}.brand{color:#e8d1af;font-size:27px;font-weight:700;letter-spacing:3px}.brand span{display:block;font-size:10px;letter-spacing:5px}.day{font-size:14px}.day span{display:block;color:#cad5dc;font-size:12px}main{max-width:1260px;margin:auto;padding:35px 24px 60px}.intro{max-width:860px;margin-bottom:32px}.eyebrow{color:#916735;font-size:12px;font-weight:700;letter-spacing:.4px;margin:0 0 7px}h1{font-size:32px;margin:3px 0 10px;line-height:1.5}h2{font-size:21px;margin:0 0 14px;line-height:1.7}h3{font-size:17px;margin:0 0 8px}.intro>p{color:var(--muted);margin:7px 0}.course-progress{display:flex;align-items:center;gap:16px;margin-top:22px;font-size:13px}progress{appearance:none;width:240px;height:6px;border:0;background:#e3e8e8;border-radius:4px}progress::-webkit-progress-bar{background:#e3e8e8;border-radius:4px}progress::-webkit-progress-value{background:var(--gold);border-radius:4px}progress::-moz-progress-bar{background:var(--gold)}.layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:32px}aside{min-width:0}aside h2{font-size:15px;color:var(--muted)}nav{display:grid;gap:9px}.episode{background:transparent;color:var(--ink);text-align:right;border:1px solid var(--line);padding:13px 15px;border-radius:9px;width:100%;line-height:1.65;display:flex;gap:12px;align-items:flex-start}.episode[aria-current="true"]{background:var(--navy);color:#fff;border-color:var(--navy)}.episode .num{color:var(--gold);font-size:14px;min-width:25px}.episode span span{display:block;font-size:11px;color:var(--muted)}.episode[aria-current="true"] span span{color:#c9d5dc}.document{display:block;margin:24px 4px;font-size:12px;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--line);padding-bottom:8px}.lesson{background:#fff;border-radius:12px;padding:26px;min-width:0}.lesson-heading{display:flex;gap:12px;justify-content:space-between;align-items:flex-start}.lesson-heading h2{margin-bottom:20px}.status{font-size:11px;white-space:nowrap;color:var(--muted);margin-top:7px}.video-wrap{background:var(--navy);border-radius:8px;overflow:hidden;aspect-ratio:16/9}video{width:100%;height:100%;display:block}.play-tools{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin:15px 0}.play-tools label{font-size:12px;display:flex;align-items:center;gap:5px;margin-inline-start:auto}button{font:inherit;font-size:13px;cursor:pointer;background:#fff;border:1px solid var(--line);border-radius:7px;padding:10px 15px;min-height:44px;color:var(--ink)}button:hover{border-color:var(--gold)}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #cca573;outline-offset:3px}.primary{background:var(--navy);border-color:var(--navy);color:white}button:disabled{opacity:.45;cursor:default}.small{font-size:12px;color:var(--muted)}.terms{display:flex;flex-wrap:wrap;gap:7px;margin:20px 0}.term{font-size:12px;padding:4px 10px;background:#f3eee7;color:#634f32;border-radius:5px}.checkpoints{border-top:1px solid var(--line);padding-top:20px}.question-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px solid var(--line)}.question-row span{font-size:13px}.question-row small{display:block;color:var(--muted);font-size:11px}.question-row button{padding:7px 12px;font-size:12px;flex-shrink:0}.summary{margin:22px 0;padding:15px;background:#edf5f0;border-radius:8px}.summary h3{margin:0}.summary p{margin:4px 0;font-size:13px}details{margin:25px 0;border-top:1px solid var(--line);padding-top:17px;font-size:12px}summary{cursor:pointer;font-size:13px}details ul{direction:ltr;text-align:left;font-size:11px}.bottom{display:flex;align-items:center;justify-content:space-between;gap:12px}.bottom button{min-width:140px}dialog{border:0;border-radius:13px;width:min(680px,calc(100vw - 28px));padding:27px;max-height:90dvh;overflow:auto;color:var(--ink);box-shadow:0 20px 100px #0004}dialog::backdrop{background:#071720c9}.quiz-top{display:flex;justify-content:space-between;gap:10px}dialog h2{font-size:21px;margin:17px 0}.option{display:flex;gap:10px;align-items:flex-start;padding:12px;margin-bottom:9px;background:#f7f8f6;border:1px solid var(--line);border-radius:8px;font-size:14px;cursor:pointer}.option input{margin-top:8px;flex-shrink:0}textarea{font:inherit;width:100%;min-height:125px;padding:12px;resize:vertical;font-size:16px;border:1px solid #bbc8ce;border-radius:7px}.feedback{padding:15px;background:#f1f5f3;border-radius:8px;margin:17px 0;font-size:14px}.feedback h3{color:var(--green)}.feedback.wrong h3{color:var(--red)}.quiz-actions,.grade-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}#validation{font-size:13px;color:var(--red)}.order-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px;background:#f3f5f4;margin-bottom:8px;font-size:14px}.order-row div{display:flex;gap:5px}.order-row button{padding:7px 12px}.grade-actions button[aria-pressed="true"]{background:var(--navy);color:white}.storage-warning{color:var(--red)}@media(max-width:850px){.layout{grid-template-columns:1fr}.lesson{padding:20px}nav{grid-template-columns:repeat(2,minmax(0,1fr))}.episode{padding:10px;font-size:12px}aside .document{margin:16px 0}h1{font-size:27px}main{padding:25px 16px 40px}.status{white-space:normal}.day span{max-width:180px}header{padding:17px 18px}}@media(max-width:460px){nav{grid-template-columns:1fr 1fr}.episode{gap:6px}.episode .num{min-width:19px}.episode span span{font-size:10px}.brand{font-size:22px}.day{font-size:12px}.day span{font-size:10px}.lesson{padding:14px;border-radius:9px}.play-tools label{margin-inline-start:0;width:100%;padding:7px 0}.lesson-heading{display:block}.status{display:block;margin:-10px 0 13px}.bottom{flex-wrap:wrap}dialog{padding:20px}dialog h2{font-size:18px}.course-progress{gap:10px}progress{width:180px}.question-row span{font-size:12px}}

header{flex-wrap:wrap}header>a{font-size:13px}