:root{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#172033;background:#f5f7fb}*{box-sizing:border-box}body{margin:0}.shell{max-width:1040px;margin:auto;padding:28px 18px 48px}.top{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:18px}.brand{font-weight:800;font-size:20px}.nav a{color:#475467;text-decoration:none;margin-left:14px}.card{background:#fff;border:1px solid #e4e7ec;border-radius:18px;padding:24px;box-shadow:0 8px 28px #1018280a}.hero h1{margin:0 0 8px;font-size:32px}.muted{color:#667085;line-height:1.6}.btn{border:1px solid #d0d5dd;background:#fff;border-radius:10px;padding:11px 16px;font-weight:700;cursor:pointer;text-decoration:none;color:#344054;display:inline-block}.btn.primary{background:#1570ef;color:#fff;border-color:#1570ef}.btn:disabled{opacity:.55;cursor:not-allowed}.hide{display:none}.toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px}.progress{height:8px;background:#eef2f6;border-radius:99px;overflow:hidden}.bar{height:100%;background:#1570ef;width:0;transition:width .2s}.word-grid{display:grid;grid-template-columns:repeat(4,minmax(130px,1fr));gap:10px 14px;margin:20px 0}.word-choice{display:flex;align-items:center;gap:9px;padding:10px 11px;border:1px solid #eaecf0;border-radius:10px;cursor:pointer;user-select:none}.word-choice:has(input:checked){background:#eff8ff;border-color:#84caff}.word-choice input{width:17px;height:17px}.actions{display:flex;gap:10px;flex-wrap:wrap}.result-main{font-size:38px;font-weight:850;margin:8px 0}.result-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:20px 0}.stat{border:1px solid #eaecf0;border-radius:12px;padding:16px}.stat strong{font-size:24px;display:block;margin-bottom:4px}.bands{margin:18px 0}.band-row{display:grid;grid-template-columns:60px 1fr 70px;align-items:center;gap:10px;margin:9px 0}.meter{height:9px;background:#eef2f6;border-radius:99px;overflow:hidden}.meter>span{display:block;height:100%;background:#12b76a}.error{color:#b42318;background:#fef3f2;border:1px solid #fecdca;border-radius:10px;padding:12px}.note{font-size:13px;color:#667085;margin-top:14px}@media(max-width:720px){.word-grid{grid-template-columns:repeat(2,1fr)}.result-grid{grid-template-columns:1fr}.hero h1{font-size:27px}.top{align-items:flex-start}.nav{display:none}}@media(max-width:420px){.word-grid{grid-template-columns:1fr}}