*{box-sizing:border-box}
:root{--bg:#fff8ef;--ink:#1f2340;--mut:#5b607d;--card:#fff;--pri:#5b4bdb;--r:18px}
body{margin:0;font-family:"Rubik","Assistant","Heebo",Arial,sans-serif;background:var(--bg);color:var(--ink);font-size:17px;line-height:1.55}
a{color:var(--pri)}
.top{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;gap:8px;padding:10px 14px;background:linear-gradient(90deg,#5b4bdb,#8e24aa);color:#fff;box-shadow:0 2px 10px #0002}
.brand{color:#fff;text-decoration:none;font-weight:800;font-size:19px}
.nav a{color:#fff;text-decoration:none;margin-inline-start:12px;font-weight:600;font-size:15px}
.lvlbar{display:flex;flex-wrap:wrap;justify-content:center;gap:5px;padding:10px 12px;background:#fff;border-bottom:1px solid #eee;position:sticky;top:48px;z-index:19}
.lvlbar button{flex:0 0 auto;border:2px solid #ddd;background:#fff;border-radius:999px;padding:8px 14px;font:inherit;font-size:15px;font-weight:700;cursor:pointer;min-height:44px}
.lvlbar button.on{background:var(--pri);border-color:var(--pri);color:#fff}
main{max-width:980px;margin:0 auto;padding:14px}
h1{font-size:26px;margin:.3em 0}h2{font-size:22px;margin:.6em 0 .3em}h3{font-size:19px;margin:.5em 0 .2em}
.hero{position:relative;border-radius:var(--r);overflow:hidden;box-shadow:0 6px 24px #0002}
.hero img{display:block;width:100%;height:auto}
.hs{position:absolute;transform:translate(-50%,-50%);width:46px;height:46px;border-radius:50%;border:3px solid #fff;color:#fff;font-size:22px;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 0 0 0 #fff8;animation:pulse 1.8s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 #fffa}70%{box-shadow:0 0 0 14px #fff0}100%{box-shadow:0 0 0 0 #fff0}}
.reveal{margin:12px 0;padding:14px;border-radius:var(--r);background:#fff;border-inline-start:8px solid var(--c,#5b4bdb);box-shadow:0 3px 12px #0001;animation:pop .25s}
@keyframes pop{from{transform:scale(.96);opacity:0}to{transform:none;opacity:1}}
.intro{background:#fff;border-radius:var(--r);padding:12px 14px;margin:12px 0;box-shadow:0 2px 8px #0001}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
.st{display:block;text-decoration:none;color:var(--ink);background:#fff;border-radius:var(--r);padding:14px;box-shadow:0 3px 10px #0001;border-top:6px solid var(--c);min-height:120px}
.st b{display:block;font-size:18px}.st .em{font-size:34px}
.st small{color:var(--mut)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;border-radius:14px;padding:12px 18px;min-height:48px;font:inherit;font-weight:700;font-size:16px;cursor:pointer;background:var(--pri);color:#fff;text-decoration:none;margin:4px 0 4px 6px}
.btn.alt{background:#fff;color:var(--pri);border:2px solid var(--pri)}
.btn.g{background:#43a047}.btn.o{background:#fb8c00}.btn.s{padding:8px 12px;min-height:40px;font-size:15px}
.card{background:#fff;border-radius:var(--r);padding:14px;margin:12px 0;box-shadow:0 3px 12px #0001}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0}
.chip{border:2px solid #ddd;background:#fff;border-radius:999px;padding:8px 12px;font:inherit;font-size:15px;cursor:pointer;min-height:42px}
.chip.on{border-color:var(--pri);background:#efeaff;font-weight:700}
.robohead{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:var(--r);color:#fff;background:var(--c)}
.robohead .em{font-size:40px}.robohead h1{margin:0;font-size:22px}.robohead p{margin:0;opacity:.95;font-size:15px}
.txt p{font-size:19px;line-height:1.8;margin:.4em 0}
.nik .txt p,.nik .pyr div,.nik .bigq{font-size:23px;line-height:2}
.opt{display:block;width:100%;text-align:right;border:2px solid #ddd;background:#fff;border-radius:14px;padding:12px;margin:6px 0;font:inherit;font-size:17px;cursor:pointer;min-height:48px}
.opt.ok{background:#e6f6e7;border-color:#43a047}.opt.no{background:#fdeaea;border-color:#e53935}
.fb{padding:8px 12px;border-radius:12px;margin:6px 0;font-weight:600}
.fb.ok{background:#e6f6e7}.fb.no{background:#fff3e0}
.tag{display:inline-block;font-size:13px;font-weight:700;padding:2px 10px;border-radius:999px;background:#efeaff;color:#5b4bdb;margin-inline-end:6px}
.words span{display:inline-block;background:#fff6d6;border-radius:10px;padding:6px 10px;margin:4px;cursor:pointer}
textarea,input[type=text]{width:100%;font:inherit;font-size:17px;padding:10px;border:2px solid #ccc;border-radius:12px}
.pyr{text-align:center;margin:12px 0}
.pyr div{font-size:21px;margin:4px auto;padding:6px 10px;border-radius:10px;background:#fff3e0;display:table;cursor:pointer}
.pyr div.cur{background:#ffcc80;outline:3px solid #fb8c00}
.big{font-size:28px;font-weight:800}
.timer{font-size:32px;font-weight:800;text-align:center;font-variant-numeric:tabular-nums}
.flip{perspective:900px;margin:12px auto;max-width:520px}
.flip .in{position:relative;min-height:220px;transition:transform .6s;transform-style:preserve-3d}
.flip.on .in{transform:rotateY(180deg)}
.flip .f,.flip .b{position:absolute;inset:0;border-radius:22px;display:flex;align-items:center;justify-content:center;text-align:center;padding:18px;backface-visibility:hidden;font-size:22px;font-weight:700}
.flip .f{background:linear-gradient(135deg,#8e24aa,#5b4bdb);color:#fff;font-size:48px}
.flip .b{background:#fff;border:4px solid #8e24aa;transform:rotateY(180deg)}
.svgwrap{max-width:420px;margin:0 auto;background:#fff;border-radius:16px;box-shadow:0 2px 10px #0002}
.svgwrap svg{display:block;width:100%;height:auto;touch-action:manipulation}
.svgwrap svg .rg{cursor:pointer;stroke:#333;stroke-width:3}
.svgwrap svg text{font-size:12px;font-weight:700;text-anchor:middle;paint-order:stroke;stroke:#fff;stroke-width:3px;fill:#222;pointer-events:none;font-family:Arial,sans-serif}
.pal{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:10px 0}
.pal button{width:44px;height:44px;border-radius:50%;border:3px solid #fff;box-shadow:0 0 0 2px #bbb;cursor:pointer}
.pal button.on{box-shadow:0 0 0 4px #222}
.legend{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:6px;margin:8px 0}
.legend div{display:flex;align-items:center;gap:8px;background:#fafafa;border-radius:10px;padding:6px 8px;font-weight:700}
.legend i{width:26px;height:26px;border-radius:50%;flex:0 0 auto;border:2px solid #0002}
.mem{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.mem button{min-height:76px;border-radius:14px;border:0;font:inherit;font-size:16px;font-weight:700;background:#43a047;color:#fff;cursor:pointer;padding:4px}
.mem button.open{background:#fff;color:#222;border:3px solid #43a047}
.mem button.done{background:#e6f6e7;color:#2e7d32;border:3px solid #a5d6a7}
.match{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.match button{min-height:52px;border-radius:12px;border:2px solid #ccc;background:#fff;font:inherit;font-size:16px;cursor:pointer;padding:6px}
.match button.sel{border-color:#5b4bdb;background:#efeaff}.match button.done{background:#e6f6e7;border-color:#43a047;color:#2e7d32}
.match button.bad{animation:shake .3s}
@keyframes shake{25%{transform:translateX(5px)}75%{transform:translateX(-5px)}}
.letters button{min-width:46px;min-height:46px;margin:3px;border-radius:10px;border:2px solid #43a047;background:#fff;font:inherit;font-size:22px;font-weight:800;cursor:pointer}
.ans{min-height:52px;font-size:26px;font-weight:800;text-align:center;border-bottom:3px dashed #43a047;margin:8px 0;letter-spacing:2px}
.score{font-weight:800;color:#43a047}
.cloze .gap{display:inline-block;min-width:70px;border-bottom:2px solid #5b4bdb;text-align:center;color:#5b4bdb;font-weight:800}
.note{font-size:14px;color:var(--mut)}
.tbl{width:100%;border-collapse:collapse;font-size:15px}.tbl td,.tbl th{border:1px solid #ddd;padding:6px;text-align:right;vertical-align:top}.tbl th{background:#efeaff}
.slide{border-inline-start:5px solid #8e24aa;padding:6px 10px;margin:8px 0;background:#faf5ff;border-radius:8px}
.foot{display:flex;flex-direction:column;align-items:center;gap:6px;padding:22px 10px 30px;color:var(--mut);font-weight:700}
.foot img{border-radius:12px}
.hide{display:none!important}
@media (max-width:520px){.lvlbar{padding:8px 6px}.lvlbar button{padding:6px 9px;font-size:14px;min-height:40px}.nav a{margin-inline-start:8px;font-size:14px}.brand{font-size:17px}.hs{width:36px;height:36px;font-size:17px;border-width:2px}.mem{grid-template-columns:repeat(3,1fr)}h1{font-size:23px}}
@media print{
 @page{margin:15mm}
 body{background:#fff;font-size:13pt}
 .top,.lvlbar,.nav,.btn,.foot img,.pal,.noprint,.hs{display:none!important}
 main{max-width:none;padding:0}
 .card,.intro{box-shadow:none;border:1px solid #ccc;break-inside:avoid}
 *{text-align:right}
 .pyr div,.svgwrap svg text{text-align:center}
}