:root{--g:#4f9d3a;--g2:#2f6b20;--gl:#eaf6df;--b:#8a5a2b;--bl:#f7ecdc;--o:#ff8a5b;--y:#ffd166;--p:#7c5cbf;--pl:#f0eafb;--bluel:#e6f2fb;--blue:#2a6f9e;--ink:#2b2a26;--mut:#6b675e;--bg:#fffaf1;--r:18px;--sh:0 4px 18px rgba(80,60,20,.10)}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:Assistant,"Varela Round",system-ui,sans-serif;font-size:18px;line-height:1.6;color:var(--ink);background:var(--bg);background-image:radial-gradient(circle at 10% 0,#eef8e4 0,transparent 40%),radial-gradient(circle at 100% 30%,#fff1dc 0,transparent 35%);overflow-x:hidden}
body.big{font-size:23px}
h1,h2,h3,.brand,.tile b,.btn,.back{font-family:"Varela Round",Assistant,sans-serif}
h1{font-size:1.7em;line-height:1.25;color:var(--g2);margin:.3em 0 .4em}
h2{font-size:1.25em;margin:1.1em 0 .5em;color:var(--b)}
h3{font-size:1.07em;margin:.3em 0 .35em;color:var(--g2)}
a{color:var(--g2)}
p{margin:.4em 0 .7em}
:focus-visible{outline:3px solid var(--o);outline-offset:2px;border-radius:8px}
.skip{position:absolute;right:-999px}.skip:focus{right:8px;top:8px;z-index:99;background:#fff;padding:8px}
.top{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:8px;padding:8px 10px;background:rgba(255,250,241,.96);border-bottom:2px solid #e9dcc3}
.brand{flex:1;min-width:0;font-size:1.02em;text-decoration:none;color:var(--g2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.icon-btn{min-width:48px;height:48px;border-radius:14px;border:2px solid #e2d3b6;background:#fff;cursor:pointer;font-weight:800;font-size:18px;color:var(--b);flex:none}
.icon-btn[aria-pressed=true]{background:var(--y)}
.drawer{position:fixed;top:66px;right:8px;left:8px;max-width:440px;margin-right:auto;z-index:30;background:#fff;border-radius:var(--r);box-shadow:0 10px 40px rgba(0,0,0,.18);padding:8px;max-height:calc(100vh - 80px);overflow:auto}
.drawer a{display:block;padding:12px 14px;border-radius:12px;text-decoration:none;color:var(--ink);font-size:1.05em}
.drawer a:hover,.drawer a.on{background:var(--gl)}
.drawer a.backlink{background:var(--bl);font-weight:700;color:var(--b);margin-top:6px}
main{max-width:980px;margin:0 auto;padding:12px 14px 30px}
.page{animation:in .35s ease}
.page[hidden]{display:none}
@keyframes in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.back{display:flex;align-items:center;justify-content:center;gap:10px;min-height:60px;padding:12px 18px;margin:10px 0;border-radius:18px;background:linear-gradient(135deg,#8a5a2b,#b07a3f);color:#fff;text-decoration:none;font-size:1.12em;box-shadow:var(--sh);text-align:center}
.back:hover{filter:brightness(1.07)}
.hero{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:6px 22px;text-align:center;padding:4px 0 6px}
.tree{width:min(290px,76vw);height:auto}
.hero-txt{flex:1 1 300px}
.kicker{display:inline-block;background:var(--gl);color:var(--g2);border-radius:99px;padding:3px 14px;font-weight:700;font-size:.9em}
.lead{font-size:1.06em;color:var(--mut)}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px;margin:14px 0}
.tile{display:flex;gap:12px;align-items:center;min-height:84px;padding:14px 16px;border-radius:var(--r);background:#fff;box-shadow:var(--sh);text-decoration:none;color:var(--ink);border:2px solid transparent;transition:transform .15s}
.tile:hover{transform:translateY(-2px);border-color:var(--g)}
.tile .em{font-size:2em;flex:none;width:52px;height:52px;display:grid;place-items:center;border-radius:16px;background:var(--gl)}
.tile b{display:block;font-size:1.05em;color:var(--g2)}
.tile small{display:block;color:var(--mut);font-size:.88em;line-height:1.35}
.card{background:#fff;border-radius:var(--r);box-shadow:var(--sh);padding:14px 16px;margin:12px 0}
.card.soft{background:var(--gl);box-shadow:none}
.card.warm{background:var(--bl);box-shadow:none}
.card.lilac{background:var(--pl);box-shadow:none}
.card.blue{background:var(--bluel);box-shadow:none}
.note{border-right:5px solid var(--o);background:#fff4ec;border-radius:12px;padding:10px 14px;margin:12px 0;font-size:.95em}
.ours{display:inline-block;background:#fff0c2;color:#7a5600;border-radius:99px;padding:1px 10px;font-size:.78em;font-weight:700;vertical-align:middle}
.src{color:var(--mut);font-size:.88em}
blockquote{margin:10px 0;padding:10px 14px;background:#fffdf7;border-right:5px solid var(--g);border-radius:10px;font-size:1.06em}
blockquote cite{display:block;font-style:normal;color:var(--mut);font-size:.85em;margin-top:4px}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:10px 18px;border-radius:14px;border:2px solid var(--g);background:var(--g);color:#fff;font-size:1em;cursor:pointer;text-decoration:none;margin:4px 0 4px 6px}
.btn.ghost{background:#fff;color:var(--g2)}
.btn.warm{background:var(--b);border-color:var(--b)}
.btn.small{min-height:44px;padding:6px 14px;font-size:.92em}
.btn:disabled{opacity:.5;cursor:default}
.pager{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;margin:22px 0 4px}
.pager .btn{flex:1 1 200px;margin:0}
/* morphology */
.morph{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;align-items:stretch;margin:10px 0}
.mb{flex:1 1 120px;max-width:200px;text-align:center;background:#fff;border-radius:14px;padding:10px;border:2px dashed #d9c8a6}
.mb big{display:block;font-family:"Varela Round";font-size:1.6em;color:var(--g2)}
.mb.root big{color:var(--b)}
.plus{align-self:center;font-size:1.6em;color:var(--mut)}
/* timeline */
.tl{position:relative;margin:12px 0;padding-right:28px}
.tl:before{content:"";position:absolute;right:11px;top:6px;bottom:6px;width:5px;border-radius:4px;background:linear-gradient(#8a5a2b,#4f9d3a)}
.tl-item{position:relative;margin:0 0 12px}
.tl-item:before{content:"";position:absolute;right:-24px;top:16px;width:17px;height:17px;border-radius:50%;background:#fff;border:4px solid var(--g)}
.tl-btn{width:100%;text-align:right;display:flex;gap:10px;align-items:center;min-height:60px;padding:10px 14px;border-radius:16px;border:2px solid #e2d3b6;background:#fff;cursor:pointer;font:inherit;color:var(--ink)}
.tl-btn .em{font-size:1.6em}
.tl-btn b{font-family:"Varela Round";color:var(--g2)}
.tl-btn[aria-expanded=true]{border-color:var(--g);background:var(--gl)}
.tl-body{padding:8px 14px 2px}
/* sort game */
.game{background:#fff;border-radius:var(--r);box-shadow:var(--sh);padding:14px;margin:12px 0;text-align:center}
.word{font-family:"Varela Round";font-size:1.5em;color:var(--g2);background:var(--bl);border-radius:16px;padding:12px;margin:8px auto;max-width:520px;min-height:64px;display:flex;align-items:center;justify-content:center}
.choices{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.choices .btn{flex:1 1 150px;max-width:260px;font-size:1.05em;min-height:58px;margin:0}
.fb{min-height:1.6em;font-weight:700;margin:8px 0}
.fb.ok{color:var(--g2)}.fb.no{color:#c0392b}
.bins{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px;text-align:right}
.bin{background:var(--gl);border-radius:14px;padding:8px 10px;min-height:70px;font-size:.92em}
.bin.b2{background:var(--pl)}
.bin h4{margin:0 0 4px;font-size:1em}
.chip{display:inline-block;background:#fff;border-radius:99px;padding:2px 10px;margin:2px;font-size:.95em}
.progress{height:10px;background:#efe6d4;border-radius:99px;overflow:hidden;margin:6px 0}
.progress span{display:block;height:100%;background:var(--g);width:0;transition:width .3s}
/* table worksheet */
.tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.ws{width:100%;border-collapse:collapse;min-width:0}
table.ws th,table.ws td{border:1px solid #e2d3b6;padding:8px;text-align:right;vertical-align:top}
table.ws th{background:var(--bl);font-family:"Varela Round";font-weight:400}
table.ws td.w{font-family:"Varela Round";font-size:1.15em;color:var(--g2);white-space:nowrap}
input[type=text],textarea{width:100%;font:inherit;font-size:16px;padding:10px 12px;border:2px solid #e2d3b6;border-radius:12px;background:#fffdf8;color:var(--ink)}
body.big input[type=text],body.big textarea{font-size:20px}
textarea{min-height:96px;resize:vertical}
label.q{display:block;font-weight:700;margin:12px 0 6px}
.cell-ok{background:#e6f6dc!important}.cell-no{background:#fde8e4!important}
@media (max-width:620px){
 table.ws.stack thead{display:none}
 table.ws.stack,table.ws.stack tbody,table.ws.stack tr,table.ws.stack td{display:block;width:100%}
 table.ws.stack tr{border:2px solid #e2d3b6;border-radius:14px;margin:0 0 10px;padding:6px;background:#fff}
 table.ws.stack td{border:0;padding:4px 6px}
 table.ws.stack td:before{content:attr(data-l);display:block;font-size:.8em;color:var(--mut);font-weight:700}
}
.mcq{display:grid;gap:8px;margin:8px 0}
.opt{width:100%;text-align:right;min-height:54px;padding:10px 14px;border-radius:14px;border:2px solid #e2d3b6;background:#fff;font:inherit;color:var(--ink);cursor:pointer}
.opt:hover{border-color:var(--g)}
.opt.ok{background:#e6f6dc;border-color:var(--g)}
.opt.no{background:#fde8e4;border-color:#e08a7b}
.opt:disabled{cursor:default}
.reveal[hidden]{display:none}
.key{background:#fffbea;border:2px dashed #e7c75c;border-radius:16px;padding:12px 16px;margin:10px 0}
.newword{font-family:"Varela Round";text-align:center;background:linear-gradient(135deg,#eaf6df,#fff1dc);border-radius:18px;padding:16px;margin:10px 0;box-shadow:var(--sh)}
.newword big{display:block;font-size:1.8em;color:var(--g2)}
/* idioms */
.idioms{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:12px;margin:12px 0}
.idiom{background:#fff;border-radius:var(--r);box-shadow:var(--sh);padding:14px 16px;border-top:6px solid var(--g)}
.idiom:nth-child(2){border-top-color:var(--o)}.idiom:nth-child(3){border-top-color:var(--p)}.idiom:nth-child(4){border-top-color:var(--blue)}.idiom:nth-child(5){border-top-color:var(--b)}
.idiom h3{font-size:1.15em}
.idiom .tag{display:inline-block;background:var(--bl);border-radius:99px;padding:1px 10px;font-size:.82em;color:var(--b);margin-bottom:6px}
.match{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.match .col{display:grid;gap:8px;align-content:start}
.mt{width:100%;min-height:58px;text-align:right;padding:10px 12px;border-radius:14px;border:2px solid #e2d3b6;background:#fff;font:inherit;font-size:.95em;color:var(--ink);cursor:pointer;line-height:1.35}
.mt.sel{border-color:var(--o);background:#fff4ec}
.mt.done{background:#e6f6dc;border-color:var(--g);cursor:default}
.mt.shake{animation:shake .35s}
@keyframes shake{25%{transform:translateX(6px)}50%{transform:translateX(-6px)}75%{transform:translateX(4px)}}
@media (max-width:560px){.match{grid-template-columns:1fr}}
/* quiz */
.qcard{background:#fff;border-radius:var(--r);box-shadow:var(--sh);padding:16px;margin:12px 0}
.qmeta{display:flex;justify-content:space-between;align-items:center;gap:8px;color:var(--mut);font-size:.9em;flex-wrap:wrap}
.qtext{font-size:1.12em;font-weight:700;margin:8px 0}
.explain{background:var(--gl);border-radius:12px;padding:8px 12px;margin-top:8px}
.score{text-align:center;font-family:"Varela Round";font-size:1.3em;color:var(--g2)}
/* stations */
.station{background:#fff;border-radius:var(--r);box-shadow:var(--sh);margin:12px 0;overflow:hidden}
.st-head{display:flex;gap:12px;align-items:center;padding:12px 14px;background:var(--gl)}
.station:nth-of-type(2) .st-head{background:#fff1dc}.station:nth-of-type(3) .st-head{background:var(--pl)}
.st-head .num{flex:none;width:46px;height:46px;border-radius:50%;background:var(--g);color:#fff;display:grid;place-items:center;font-family:"Varela Round";font-size:1.3em}
.st-head h3{margin:0}
.st-body{padding:4px 16px 14px}
.st-body ol,.st-body ul{padding-right:22px;margin:.3em 0 .6em}
.lesson{background:#fffbea;border-radius:12px;padding:8px 12px}
.timer{position:sticky;bottom:10px;z-index:15;background:#2f6b20;color:#fff;border-radius:22px;padding:12px 14px;box-shadow:0 8px 30px rgba(0,0,0,.25);margin:14px 0}
.timer .row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:center}
.timer .clock{font-family:"Varela Round";font-size:2.4em;letter-spacing:2px;min-width:150px;text-align:center;direction:ltr}
.timer .tbtn{min-height:48px;padding:6px 14px;border-radius:14px;border:2px solid rgba(255,255,255,.6);background:transparent;color:#fff;font:inherit;cursor:pointer}
.timer .tbtn.on{background:#fff;color:var(--g2)}
.timer .main{background:var(--y);color:#3d2f00;border-color:var(--y);font-weight:800}
.timer .lbl{text-align:center;font-size:.95em;opacity:.95}
.timer.ring{animation:ring 1s 3}
@keyframes ring{50%{background:#ff8a5b}}
.roles{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:8px;margin:8px 0}
.role{background:var(--pl);border-radius:14px;padding:10px 12px;font-size:.95em}
/* subjects */
.subj{border-radius:var(--r);padding:14px 16px;margin:14px 0;box-shadow:var(--sh);background:#fff;border-right:8px solid var(--g)}
.subj.hist{border-right-color:var(--blue)}.subj.lit{border-right-color:var(--p)}
.refusals{display:grid;gap:8px;counter-reset:r}
.refusal{background:var(--bl);border-radius:14px;padding:10px 12px;position:relative;padding-right:46px}
.refusal:before{counter-increment:r;content:counter(r);position:absolute;right:10px;top:10px;width:28px;height:28px;border-radius:50%;background:var(--b);color:#fff;display:grid;place-items:center;font-family:"Varela Round"}
.vs{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media (max-width:560px){.vs{grid-template-columns:1fr}}
.panelq{font-family:"Varela Round";font-size:1.2em;text-align:center;background:var(--bluel);border-radius:16px;padding:16px;min-height:80px;display:flex;align-items:center;justify-content:center;margin:8px 0}
.srcs li{margin:6px 0;word-break:break-word}
footer{text-align:center;color:var(--mut);padding:18px 14px 30px;border-top:2px solid #eadfca;margin-top:20px}
footer .credit{font-family:"Varela Round";color:var(--b);font-size:1.05em}
details.tip{background:#fff;border-radius:14px;box-shadow:var(--sh);margin:10px 0;padding:0 14px}
details.tip summary{cursor:pointer;min-height:52px;display:flex;align-items:center;font-weight:700;color:var(--g2)}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
h1[tabindex="-1"]:focus{outline:none}