:root{--green:#17654e;--dark:#153e34;--muted:#63766e;--line:#dbe6df;--pale:#f1f7f3;--gold:#e5b656;--red:#9e3434}*{box-sizing:border-box}body{margin:0;color:#18392f;background:#fff;font:16px/1.6 system-ui,-apple-system,Segoe UI,sans-serif}a{color:var(--green);text-underline-offset:4px}button,input,textarea,select{font:inherit}button,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--green);color:#fff;border:1px solid var(--green);padding:11px 20px;border-radius:8px;cursor:pointer;text-decoration:none;font-weight:600}button:hover,.button:hover{background:var(--dark)}button:disabled{opacity:.5;cursor:default}.secondary{background:#fff;color:var(--green);border-color:var(--line)}.secondary:hover{background:var(--pale)}.danger{background:var(--red);border-color:var(--red)}:focus-visible{outline:3px solid #deab47;outline-offset:4px}header{padding:22px 5%;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);background:white}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--dark);font-size:27px;font-weight:800;line-height:1.1}.brand>span{display:grid;place-items:center;width:42px;height:46px;border-radius:8px 8px 18px 18px;background:var(--green);color:white}.brand small{font-size:10px;display:block;letter-spacing:3px;margin-top:7px}nav{display:flex;align-items:center;gap:22px;flex-wrap:wrap}nav a{font-size:14px;text-decoration:none}nav button{font-size:13px;padding:7px 12px}main{max-width:1240px;margin:auto;padding:44px 28px;min-height:75vh}h1,h2,h3{line-height:1.22;letter-spacing:-.035em}h1{font-size:clamp(32px,4vw,52px);margin:12px 0 22px}h2{font-size:28px}h3{font-size:21px}p{color:var(--muted)}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:750;text-transform:uppercase;color:var(--green)}.intro{max-width:720px;font-size:19px}.hero{background:var(--pale);border:1px solid var(--line);padding:40px;border-radius:14px;margin-bottom:32px}.hero p{max-width:740px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.two{grid-template-columns:repeat(2,minmax(0,1fr))}.card{border:1px solid var(--line);border-radius:12px;padding:25px;background:white;min-width:0}.card h3{margin:14px 0}.card .button{margin-top:12px}.badge{background:var(--pale);padding:5px 9px;border-radius:5px;font-size:12px;display:inline-block}.muted,small{color:var(--muted);font-size:13px}.actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:22px 0}.form{max-width:520px;margin:auto}.form.wide{max-width:850px}label{display:block;font-weight:600;font-size:14px;margin:18px 0 6px}input,select,textarea{display:block;width:100%;padding:11px 12px;border:1px solid #b6cbbf;border-radius:7px;background:#fff;color:var(--dark)}textarea{min-height:130px;resize:vertical}.code{font-family:ui-monospace,monospace;font-size:13px;min-height:330px}.check{display:flex;align-items:start;gap:10px;font-weight:400}.check input{width:auto;margin-top:5px}.check label{margin:0;font-weight:400}#notice{max-width:1184px;margin:0 auto}#notice:not(:empty){padding:15px 22px;background:#fff4dc;border-bottom:1px solid #e2bd64}.alert{padding:18px;border-left:4px solid var(--gold);background:#fff9eb;margin:22px 0}.success{background:var(--pale);border-left-color:var(--green)}.layout{display:grid;grid-template-columns:240px 1fr;gap:30px}.sidebar{border:1px solid var(--line);border-radius:10px;padding:15px;align-self:start}.sidebar a{display:block;padding:10px;border-radius:6px;text-decoration:none}.sidebar a.active{background:var(--pale);font-weight:700}.sidebar h3{font-size:15px;padding:0 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var(--line);padding:15px;border-radius:8px;display:flex;align-items:start;gap:12px;font-weight:400}.option input{width:auto;margin-top:5px}.stat{font-size:38px;font-weight:750;color:var(--green)}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:9px;margin:20px 0}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:13px 15px;border-bottom:1px solid var(--line);vertical-align:top}th{background:var(--pale);white-space:nowrap}td button{padding:6px 10px;font-size:12px}.split{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}.editor-list{display:grid;gap:14px;margin:20px 0}.editor-list details{border:1px solid var(--line);border-radius:8px;padding:16px}.editor-list summary{cursor:pointer;font-weight:650}.toolbar{display:flex;gap:8px;flex-wrap:wrap;margin:15px 0}.toolbar button{font-size:13px;padding:7px 12px}.preview{border:1px solid var(--line);border-radius:8px;width:100%;min-height:450px;background:#fff}.certificate{border:6px double var(--green);padding:55px 35px;text-align:center;max-width:1000px;margin:auto;background:#fff}.certificate .name{font-size:38px;margin:30px 0}.certificate h1{font-size:37px}.certificate .seal{font-size:26px;color:var(--green);font-weight:800}.secret{font-family:monospace;overflow-wrap:anywhere;padding:15px;background:var(--pale);border:1px solid var(--line)}.bars{display:flex;gap:8px;align-items:flex-end;min-height:160px;overflow:auto;padding-top:15px}.bar{min-width:30px;flex:1;text-align:center;font-size:11px}.bar meter{display:block;width:100%;height:22px;accent-color:var(--green)}.empty{padding:28px;text-align:center;background:var(--pale);border-radius:8px}.skip{position:fixed;top:-100px;background:#fff;padding:12px;z-index:5}.skip:focus{top:8px}footer{padding:28px;text-align:center;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}.section{margin:36px 0}dialog{border:1px solid var(--line);border-radius:12px;max-width:600px}body.busy{cursor:progress}@media(max-width:900px){.grid,.stats{grid-template-columns:repeat(2,minmax(0,1fr))}.layout{grid-template-columns:1fr}.sidebar{display:flex;flex-wrap:wrap;gap:5px}.sidebar h3{width:100%}.lesson-menu{max-height:160px;width:100%}}@media(max-width:600px){header{align-items:start;flex-direction:column}nav{gap:15px}main{padding:28px 18px}.hero{padding:25px}.grid,.two{grid-template-columns:1fr}.stats{grid-template-columns:1fr 1fr}.certificate{padding:28px 18px}.certificate .name{font-size:28px}.lesson-body{font-size:18px}.lesson-nav{flex-wrap:wrap}.card{padding:20px}}@media print{header,footer,#notice,.no-print{display:none!important}main{padding:0;margin:0;max-width:none}.certificate{border:5px double #17654e;margin:12mm 0;break-inside:avoid}.certificate p{color:#18392f}@page{size:A4 landscape;margin:12mm}}

.submission-body{white-space:pre-wrap;overflow-wrap:anywhere}.review-card{margin:24px 0}.review-card textarea{min-height:80px}.status{font-weight:600;color:#17654e}

.course-art{display:block;width:100%;max-height:280px;object-fit:contain;margin:24px 0;background:#f6faf8;border-radius:16px}.lesson-body p{white-space:pre-line;max-width:80ch}fieldset{border:1px solid #dce5df;border-radius:12px;padding:20px;margin:20px 0}legend{font-weight:650;padding:0 8px}.option{display:flex;gap:12px;align-items:flex-start;padding:12px;border-radius:8px;background:#f8faf9;margin:8px 0}.option input{width:auto;margin-top:5px}