@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.css');
:root{font-family:Pretendard,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#222;line-height:1.6;font-synthesis:none;--muted:#7a7d83;--line:#dfe0e4;--paper:#fff;--accent:#202124}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 5% 0%,#e2e7eb,transparent 50%),radial-gradient(ellipse at 95% 20%,#e8e7f0,transparent 48%),#f4f4f6;min-height:100vh}header{max-width:1100px;margin:auto;padding:24px 28px;display:flex;justify-content:space-between;font-size:13px}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}main{max-width:1000px;padding:26px 28px 0;margin:auto}h1{font-size:60px;letter-spacing:-3px;line-height:1.1;margin:16px 0 10px;font-weight:750}h1 span{font-size:22px;vertical-align:top;margin-left:14px;line-height:2.5;color:#8b8c91;font-weight:400}h2{font-size:17px;letter-spacing:-.3px;margin:0 0 16px}.intro p{color:#74777d;margin:0 0 32px}.eyebrow{font-size:11px;letter-spacing:1.7px;color:#7d8790}.topline{border-top:1px solid #62666b;padding:18px 0 24px;font-size:12px;color:var(--muted);display:flex;justify-content:space-between;gap:12px}section{background:#ffffffcf;border:1px solid #ffffff;border-radius:26px;padding:30px;margin-bottom:22px;box-shadow:0 12px 40px #25262e04}button,input,select,textarea{font:inherit}button{border:1px solid var(--line);border-radius:12px;background:white;color:#333;padding:11px 18px;cursor:pointer;font-size:13px;font-weight:600}button:hover:enabled{background:#f1f2f4}button:disabled{opacity:.4;cursor:default}.primary{background:var(--accent);color:white;border-color:var(--accent);min-width:114px;border-radius:999px}.primary:hover:enabled{background:#444}.quiet{padding:7px 0;border:0;background:transparent;font-weight:500}.subjects{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.subjectchoice{position:relative;cursor:pointer;background:#f3f3f6;border:1px solid transparent;padding:20px 17px;border-radius:17px;display:block;transition:.15s}.subjectchoice:has(input:checked){border:1px solid #222;background:#fff;box-shadow:0 0 0 1px #222}.subjectchoice input{position:absolute;right:16px;top:19px;accent-color:#222;width:15px;height:15px}.subjectchoice b{font-size:16px}.subjectchoice small{display:block;margin-top:20px;color:var(--muted);font-size:12px}.settings{display:grid;grid-template-columns:1fr 1fr 2fr;gap:18px;padding-top:26px;margin-top:26px;border-top:1px solid var(--line)}.settings label{font-size:12px;display:block;margin-bottom:8px;color:#666}select,input[type=search]{width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 12px;background:#fff;font-size:13px;color:#333}.setupfoot{display:flex;justify-content:space-between;align-items:center;margin-top:25px}.setupfoot p{font-size:13px;color:#666}.sessionbar{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:24px}.sessionbar span{font-size:12px;color:#7a7a80}#star{font-size:23px;width:30px}.caseheading{display:flex;gap:12px;align-items:center;margin-bottom:14px;font-size:12px}.pill{background:#ececf0;border-radius:6px;padding:3px 9px}.muted{color:var(--muted)}#title{font-size:15px;color:#56595f;font-weight:500;line-height:1.7}.reference{font-size:21px;line-height:1.95;letter-spacing:-.3px;word-break:keep-all;overflow-wrap:anywhere;color:#777b82;padding:18px 0 8px}.reference span.correct{color:#222;background:#e9eee9}.reference span.wrong{color:#b83c3c;background:#f9e6e6}.reference span.cursor{border-bottom:2px solid #222}.citation{font-size:12px;color:#7d8188;line-height:1.8;margin:12px 0 26px}.inputlabel{display:block;font-size:12px;color:#7b7e84;margin-bottom:8px}textarea{display:block;width:100%;resize:vertical;border:1px solid #d4d6dd;border-radius:15px;background:#fbfbfc;padding:18px;font-size:19px;line-height:1.9;min-height:180px;overflow-wrap:anywhere}textarea:focus{outline:2px solid #737981;outline-offset:3px}button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid #737981;outline-offset:4px}.metrics{display:flex;gap:22px;font-size:12px;color:#777b82;margin:16px 0 10px;font-variant-numeric:tabular-nums}.track{height:3px;background:#e7e8eb;border-radius:3px;overflow:hidden}#progress{background:#333;height:100%;width:0;transition:width .1s}#status{min-height:36px;padding:10px 0 0;font-size:13px;color:#47744e}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}.actions .primary{margin-left:auto}.hint{font-size:11px;color:#94969d;line-height:1.9;margin:20px 0 0}details{border:1px solid #dbdde2;border-radius:17px;padding:19px 24px;margin:26px 0;background:#ffffff70}summary{font-size:13px;font-weight:600;cursor:pointer}#listcount{font-weight:400;color:#8a8d94;margin-left:7px}.listitem{display:block;text-align:left;width:100%;margin-top:10px;padding:16px;background:#ffffffaf;border-radius:10px;font-weight:400;line-height:1.8}.listitem small{display:block;color:#888;font-size:11px}.listitem strong{display:block;font-size:12px;font-weight:500;color:#777}.listitem p{margin:5px 0 0;font-size:13px}#more{margin-top:18px;width:100%}footer{font-size:10px;color:#9d9fa6;text-align:center;padding:34px 0 28px}#finished h2{font-size:24px;margin:16px 0 12px}#finished p{color:#777;font-size:13px}#finished button{margin-top:15px}[hidden]{display:none!important}@media(max-width:760px){header{padding:22px}main{padding:14px 18px 0}h1{font-size:48px}.subjects{grid-template-columns:repeat(2,1fr)}section{padding:24px 20px}.settings{grid-template-columns:1fr 1fr}.settings>div:last-child{grid-column:1/-1}.reference{font-size:19px;line-height:1.9;word-break:normal}textarea{font-size:17px;min-height:170px}.actions{gap:8px}.actions button{padding:10px 13px}.actions .primary{min-width:95px}.topline{font-size:11px}.intro p{margin-bottom:26px}details{padding:17px}.subjectchoice{padding:16px}.subjectchoice small{margin-top:14px}}