:root{color-scheme:dark;--bg:#0b1013;--panel:#141c20;--line:#2a383e;--muted:#99acb2;--ink:#edf6f4;--mint:#a2f5cf;--orange:#ffbe8f;--red:#ffaaa5;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--ink)}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 78% 0,rgba(100,180,155,.09),transparent 55%)}main{max-width:1160px;margin:auto;padding:32px 28px 28px}button,input,select,textarea{font:inherit}button,summary,select{cursor:pointer}button{border:1px solid var(--line);border-radius:9px;background:#202c31;color:var(--ink);padding:13px 18px;min-height:46px;font-weight:600}button:hover:enabled{background:#2c4045}button:disabled{opacity:.42;cursor:default}button:focus-visible,summary:focus-visible,a:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--mint);outline-offset:4px}a{color:var(--mint)}.brand{display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line);padding-bottom:22px}.brand img{width:150px;height:auto}.wordmark{font-size:29px;font-weight:800;text-decoration:none;letter-spacing:-1.6px;color:var(--ink)}.wordmark span{color:var(--mint)}.wordmark .dot{color:var(--orange)}.intro{padding:45px 0 30px;max-width:790px}.eyebrow{color:var(--mint);font-size:11px;letter-spacing:.12em;font-weight:700}h1{font-size:clamp(36px,5.2vw,62px);line-height:1.08;letter-spacing:-2px;margin:16px 0 20px}h1 span{color:var(--muted)}p{font-size:15px;line-height:1.65;color:var(--muted)}.intro p{max-width:600px;font-size:17px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:20px}.card{background:var(--panel);border:1px solid var(--line);border-radius:15px;padding:28px;min-width:0}.exercise{background:linear-gradient(140deg,#19262a,#121b1f)}.section-head{display:flex;justify-content:space-between;gap:20px;align-items:center;flex-wrap:wrap}h2{font-size:20px;margin:0;font-weight:600;letter-spacing:-.4px}.tag{font-size:10px;letter-spacing:.08em;color:var(--muted);border:1px solid var(--line);padding:7px 9px;border-radius:5px}.modes{display:flex;gap:4px;background:#0b1316;border:1px solid var(--line);padding:5px;border-radius:10px;margin:24px 0 20px}.modes button{flex:1;background:transparent;border-color:transparent;font-size:13px;padding:10px 8px}.modes button[aria-pressed=true]{background:var(--mint);color:#10251e}.instruction{font-size:13px;margin-bottom:0}.prompt{text-align:center;padding:34px 0 28px;font-size:clamp(42px,7vw,76px);font-weight:800;color:var(--mint);letter-spacing:.09em;overflow-wrap:anywhere;line-height:1.2}.task-actions{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding-bottom:18px}.text-button{background:transparent;border:0;padding:8px 0;color:var(--muted);font-size:13px;min-height:38px}.record-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.primary{background:var(--mint);color:#10251e;border-color:var(--mint)}.primary:hover:enabled{background:#c4ffe4}.primary span{font-size:12px;margin-right:7px}.primary[aria-pressed=true]{background:#713d3b;color:white;border-color:var(--red)}.status{min-height:25px;margin-bottom:0;font-size:13px}.setup h2{margin:15px 0 24px}label{display:block;font-size:12px;color:var(--muted);margin:18px 0 10px}select,textarea{width:100%;background:#0b1316;color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:12px;min-height:46px}select{font-size:14px}.setup p{font-size:13px}.steps{display:grid;gap:17px;margin:26px 0;color:var(--mint);font-size:12px}.steps b{margin-left:12px;color:var(--ink);font-weight:400}.small{font-size:12px}.answer{margin-top:20px}.answer h2{margin-top:12px}.raw-text{color:var(--ink);background:#0c1417;padding:18px;border-radius:8px;white-space:pre-wrap;overflow-wrap:anywhere}.verdict{padding:16px 0;font-size:19px;font-weight:700;color:var(--orange)}.verdict[data-passed=true]{color:var(--mint)}.table-scroll{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:14px;text-align:left}th{color:var(--muted);font-size:11px;font-weight:400;text-transform:uppercase;letter-spacing:.06em}td,th{padding:14px 10px;border-bottom:1px solid var(--line)}tr[data-state=correct] td:last-child{color:var(--mint)}tr:not([data-state=correct]) td:last-child{color:var(--orange)}.solution{color:var(--mint);font-size:14px;overflow-wrap:anywhere}.manual,.reference{margin-top:20px;padding:20px 28px}summary{font-size:14px;padding:5px 0}details[open]>summary{margin-bottom:18px}textarea{min-height:95px;resize:vertical;margin-bottom:14px}.answer details{margin-top:25px}.alphabet{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px;margin:22px 0}.alphabet div{padding:12px;background:#0b1316;border-radius:6px;font-size:13px}.alphabet b{display:inline-block;color:var(--mint);width:25px}.reference a{font-size:12px}audio{width:100%;margin-top:16px}.error{color:var(--red);white-space:pre-wrap;font-size:13px}.error:empty{display:none}footer{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:var(--muted);font-size:11px;padding:26px 0 0}[hidden]{display:none!important}
@media(max-width:850px){.workspace{grid-template-columns:1fr}.setup{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}.setup .eyebrow,.setup h2,.setup p,.setup .steps{grid-column:1/-1}.setup label{grid-row:3}.setup select{grid-row:4}.setup .steps{display:flex;flex-wrap:wrap}.intro{padding-top:34px}}
@media(max-width:480px){main{padding:22px 16px}.brand img{width:110px}.wordmark{font-size:25px}.card{padding:21px 18px}.modes button{font-size:12px;padding:10px 5px}.tag{font-size:9px}.record-actions button{width:100%}.prompt{padding-top:28px;font-size:52px}.setup{display:block}th,td{padding:12px 7px;font-size:12px}.intro p{font-size:15px}h1{letter-spacing:-1.4px}.task-actions{gap:8px}.text-button{font-size:12px}}
.game-launch{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:24px 28px;margin:0 0 20px;border:1px solid #426556;border-radius:14px;background:linear-gradient(110deg,#1e332a,#142024)}.game-launch h2{margin-top:10px}.game-launch p{font-size:13px;margin-bottom:0}.game-launch button{white-space:nowrap}.game-board{display:flex;gap:30px;align-items:center;flex-wrap:wrap;background:#13261f;border:1px solid #426556;border-radius:14px;padding:23px 28px;margin-bottom:20px}.game-board div{flex:1}.game-board div span{display:block;color:var(--muted);font-size:10px;letter-spacing:.1em;margin-bottom:10px}.game-board b{font-size:23px;color:var(--mint);white-space:nowrap}.game-board progress{width:100%;height:5px;accent-color:var(--mint)}.game-board[data-urgent=true] #gameTime{color:var(--orange)}.game-summary{margin-bottom:20px;border-color:var(--mint)}.game-summary h2{font-size:30px;color:var(--mint);margin-top:14px}.game-confirm{margin-top:22px;padding:18px;background:#1b3028;border-radius:10px}.game-confirm p{margin-top:0;color:var(--ink);font-size:13px}@media(max-width:650px){.game-launch{align-items:flex-start;flex-direction:column;padding:22px 18px}.game-board{gap:18px;padding:20px 18px}.game-board div{flex:1 0 24%}.game-board b{font-size:20px}.game-summary h2{font-size:24px}}
#alphabetToggle{margin-left:auto;font-size:12px;font-weight:400;background:transparent;color:var(--mint)}#alphabetPanel{margin:0 0 20px}@media(max-width:650px){.brand{flex-wrap:wrap}.brand img{margin-left:auto}#alphabetToggle{order:3;width:100%;margin:0}.game-board .tag{width:100%;white-space:normal}}

.open-source{margin-top:20px}.open-source p{max-width:85ch}.open-source p[lang=en]{font-size:13px}.open-source a{font-size:13px}