:root{--bg:#f6f5ef;--ink:#203b3b;--muted:#667772;--line:#dce1d7;--teal:#286958;--lime:#dbeaaf;--yellow:#f3cb72;--coral:#eaa88d;--white:#fffefa}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55}button,a,select{-webkit-tap-highlight-color:transparent}button,select{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.55}button:focus-visible,a:focus-visible,summary:focus-visible,select:focus-visible{outline:3px solid #b56a28;outline-offset:5px}header{max-width:1220px;margin:auto;padding:26px 34px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:20px}.brand{text-decoration:none;color:var(--ink);font-size:24px;font-weight:750;display:flex;gap:11px;align-items:center;letter-spacing:-1px}.brand-icon{background:var(--ink);color:var(--lime);font-size:27px;width:42px;height:42px;border-radius:13px;text-align:center}.brand-dot{color:#9aa797;font-weight:400;margin:0 8px}.brand-sub{font-size:10px;letter-spacing:2px}.plain{background:none;border:0;color:var(--ink);padding:9px 0;font-size:14px}.plain:hover{text-decoration:underline}.primary,.secondary{min-height:48px;padding:13px 23px;border-radius:12px;border:1px solid transparent;font-weight:650;background:var(--ink);color:white}.primary:hover{background:#31574e}.secondary{background:var(--white);border-color:var(--line);color:var(--ink)}.secondary:hover{border-color:var(--teal)}main{max-width:1220px;padding:40px 34px 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20px;display:block}footer>.plain{display:block}.exercise-head{gap:10px}.crumb{margin-bottom:18px}.result h1{font-size:35px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
/* Prüfungsfokus: Modelle wie in den Arbeitsblättern. */
.bead{border-radius:0;clip-path:polygon(25% 4%,75% 4%,100% 50%,75% 96%,25% 96%,0 50%)}.bead.f{background:#db6e5b;clip-path:polygon(50% 0,100% 38%,82% 100%,18% 100%,0 38%)}.organ-diagram{display:block;width:100%;max-width:480px;max-height:580px;margin:10px auto 16px}.label-input,textarea{font:inherit;color:var(--ink);background:var(--bg);border:1px solid #bdccbd;border-radius:9px;padding:12px;width:100%}textarea{resize:vertical;margin:12px 0;line-height:1.6}textarea:focus-visible,.label-input:focus-visible{outline:3px solid #b56a28;outline-offset:3px}.station-grid{grid-template-columns:repeat(3,1fr)}@media(max-width:850px){.station-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.section-top h2{font-size:21px}}