:root{--tuc:#005f50;--tucl:#80AFA8;--warm:#C8742A;--ink:#1d1d1f;--grey:#6b6b6b;--line:#dcdcdc;--err:#b23b1e}
*{box-sizing:border-box}
body{margin:0;font:17px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
     color:var(--ink);background:#fafaf8;display:flex;flex-direction:column;min-height:100vh}
main{width:100%;max-width:40rem;margin:0 auto;padding:1.2rem 1rem 2rem;flex:1}
footer{text-align:center;color:var(--grey);font-size:.78rem;padding:1rem;border-top:1px solid var(--line)}
h1{font-size:1.6rem;margin:.2rem 0 .6rem;color:var(--tuc)}
h2{font-size:1.25rem;line-height:1.35;margin:.2rem 0 .8rem;color:var(--tuc)}
.lead{color:#333}
.meta{color:var(--grey);font-size:.82rem;margin:.4rem 0 .3rem}
.box{background:#fff;border:1px solid var(--line);border-radius:10px;padding:.85rem 1rem;margin:1rem 0}
.box ul{margin:.2rem 0 .2rem 1.1rem;padding:0}
.box li{margin:.25rem 0}
.hinweis{color:var(--grey);font-size:.85rem;margin:.15rem 0 .2rem}
.fehler{color:var(--err);font-size:.85rem;min-height:0}
.fehler:empty{display:none}

.fortschritt{height:6px;background:#e8ecea;border-radius:3px;overflow:hidden}
.fortschritt div{height:100%;background:var(--tuc);transition:width .2s}

.frage{background:#fff;border:1px solid var(--line);border-radius:10px;padding:.8rem .9rem;margin:.8rem 0}
.ftext{font-weight:600;margin-bottom:.35rem}
.zeile{display:flex;align-items:center;gap:.5rem;margin-top:.4rem}
.einheit{color:var(--grey)}
input[type=number],input[type=text]{font:inherit;padding:.6rem .7rem;border:1.5px solid var(--line);
  border-radius:9px;background:#fff}
input[type=number]{width:8.5rem}
input[type=text]{width:100%;margin-top:.4rem}
input:focus{outline:2px solid var(--tucl);border-color:var(--tuc)}

button{font:inherit;padding:.65rem 1.2rem;border-radius:9px;border:1.5px solid var(--tuc);
       background:#fff;color:var(--tuc);cursor:pointer;min-width:6.5rem;touch-action:manipulation}
button:disabled{opacity:.4;cursor:default}
.primary{background:var(--tuc);color:#fff}
.nav{display:flex;justify-content:space-between;gap:.6rem;margin:1.4rem 0 .5rem}

.optionen{display:flex;flex-direction:column;gap:.4rem;margin-top:.4rem}
.opt{text-align:left;border-color:var(--line);color:var(--ink);padding:.6rem .9rem;min-width:0}
.opt.an{border-color:var(--tuc);background:#e7f2ef;color:var(--tuc);font-weight:600}
.rang .platz{display:inline-block;width:1.8rem;font-weight:700;color:var(--tuc)}
button.link{background:none;border:none;color:var(--tuc);text-decoration:underline;
  padding:.4rem 0 0;min-width:0;font-size:.85rem}

.skala{display:grid;gap:.3rem;margin-top:.5rem}
.skala.n5{grid-template-columns:repeat(5,1fr)}
.skala.n11{grid-template-columns:repeat(11,1fr)}
.pkt{min-width:0;padding:.55rem 0;border-color:var(--line);color:var(--ink);font-size:.95rem}
.skala.n11 .pkt{font-size:.8rem;padding:.55rem 0;border-radius:6px}
.pkt.an{background:var(--tuc);border-color:var(--tuc);color:#fff;font-weight:600}
.pole{display:flex;justify-content:space-between;gap:1rem;color:var(--grey);font-size:.78rem;margin-top:.25rem}
.pole span:last-child{text-align:right}

.regler{display:flex;align-items:center;gap:.8rem;margin-top:.6rem}
.regler input{flex:1;accent-color:var(--tuc);height:2rem}
.regler output{width:2.6rem;text-align:right;font-weight:600;color:var(--tuc)}
.regler.unberuehrt input{opacity:.45}
.regler.unberuehrt input::-webkit-slider-thumb{opacity:0}
.regler.unberuehrt input::-moz-range-thumb{opacity:0}

details.box summary{cursor:pointer;color:var(--tuc)}
.payload{background:#f6f7f6;border-radius:8px;padding:.7rem;font-size:.75rem;overflow-x:auto;white-space:pre}