:root{
  --bg:#f3f8f5; --primary:#1b9e77; --accent:#5c3b8a; --ink:#223; --muted:#667; --card:#ffffff;
  --chip-noun:#ffd166; --chip-verb:#06d6a0; --chip-adj:#ef476f;
}
*{box-sizing:border-box} body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg)}
.site-header{display:flex;gap:12px;align-items:center;padding:16px 20px;background:linear-gradient(180deg,#e7f4ee,transparent)}
.logo{height:44px;width:auto} h1{margin:0;font-size:clamp(20px,3vw,28px);color:#183;} .subtitle{color:var(--muted)}
.container{max-width:1100px;margin:0 auto;padding:20px} .card{background:var(--card);border-radius:16px;padding:18px;box-shadow:0 10px 20px rgba(0,0,0,.06)}
.grid.levels{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;margin-top:18px}
.level-card{display:block;text-decoration:none;color:inherit;background:var(--card);padding:16px;border-radius:16px;box-shadow:0 8px 18px rgba(0,0,0,.05);position:relative}
.level-card .badge{position:absolute;top:10px;right:10px;background:#173;color:#fff;padding:4px 8px;border-radius:999px;font-size:12px}
.level-card:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(0,0,0,.08)}
.btn{appearance:none;border:none;background:var(--primary);color:#fff;padding:10px 14px;border-radius:12px;cursor:pointer}
.btn.secondary{background:#2b6} .btn.ghost{background:transparent;border:1px solid #9bb;padding:8px 12px;color:#345}
.actions{display:flex;gap:10px;margin-top:12px} .muted{color:var(--muted)} .site-footer{padding:20px;text-align:center;color:var(--muted)}
.text-area{line-height:1.9;background:#fff;border-radius:12px;padding:12px;border:1px dashed #c9d7cf}
.text-area button{display:inline-block;margin:2px 3px;padding:2px 6px;border-radius:8px;border:1px solid #ccd;background:#f9fbfa;cursor:pointer}
.text-area button[data-c="N"]{border-color:var(--chip-noun)} .text-area button[data-c="V"]{border-color:var(--chip-verb)} .text-area button[data-c="A"]{border-color:var(--chip-adj)}
.text-area button.tag-n{background:var(--chip-noun)} .text-area button.tag-v{background:var(--chip-verb)} .text-area button.tag-a{background:var(--chip-adj);color:#fff}
.legend{display:flex;gap:8px;margin:8px 0} .chip{padding:6px 10px;border-radius:999px;background:#eef;border:1px solid #dde}
.chip-noun{background:var(--chip-noun)} .chip-verb{background:var(--chip-verb)} .chip-adj{background:var(--chip-adj);color:#fff}
.dnd-task{display:grid;gap:12px} .dnd-pool,.dnd-row{display:flex;gap:8px;flex-wrap:wrap} .dnd-badge{padding:6px 8px;background:#eef;border:1px solid #ccd;border-radius:10px;cursor:grab}
.drop{min-height:48px;flex:1;border:2px dashed #c9d7cf;border-radius:12px;padding:6px} .drop.labelled:before{content:attr(data-label);display:block;font-size:12px;color:#567;margin-bottom:4px}
.time-task .slot{display:flex;align-items:center;gap:8px;margin:10px 0} .time-task input, .open-input{padding:8px;border-radius:8px;border:1px solid #ccd;width:100%}
.mcq{display:grid;gap:10px} .mcq .opt{padding:10px;border:1px solid #ccd;border-radius:10px;background:#fff;cursor:pointer}
.mcq .opt.selected{outline:2px solid var(--primary)} .feedback{margin-top:8px}