*{box-sizing:border-box}
:root{--b:#1f4e79;--b2:#2c6ea3;--g:#39775a;--y:#e3a400;--ink:#203040;--muted:#657789;--line:#d6e0e8}
html{scroll-behavior:smooth} body{margin:0;font:16px Arial,Helvetica,sans-serif;line-height:1.55;color:var(--ink);background:#f3f6f9}
.wrap{width:min(920px,calc(100% - 28px));margin:auto}
header{background:linear-gradient(135deg,var(--b),var(--b2));color:#fff;border-bottom:6px solid var(--y);padding:25px 0}
.crumbs{font-size:.85rem;margin-bottom:8px}.crumbs a{color:#fff;text-decoration:none}.kicker{font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;font-weight:700;opacity:.9}
h1{margin:.2rem 0;font-size:clamp(1.7rem,5vw,2.9rem);line-height:1.08} header p{margin:0} main{padding:20px 0 40px}
.status,.intro,.mission,.finish{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;margin-bottom:14px;box-shadow:0 4px 14px #18324a0d}
.statusline{display:flex;justify-content:space-between;gap:12px}.bar{height:10px;background:#e5ebf0;border-radius:20px;overflow:hidden;margin:9px 0}.bar i{display:block;height:100%;width:0;background:var(--g);transition:.3s}
.navrow{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.navhint{font-size:.9rem;color:var(--muted)}
.navbtn,.back{background:#e8edf2;color:#29435a}.navbtn:disabled{opacity:.45;cursor:not-allowed}
.intro h2,.mission h2,.finish h2{color:var(--b);margin-top:.2rem}.merke,.check{background:#fff4d6;border-left:5px solid var(--y);padding:11px 13px;border-radius:8px}
.mission{display:none;border-top:5px solid var(--b)}.mission.active{display:block}.mission em{font-style:normal;font-size:.78rem;font-weight:bold;letter-spacing:.08em;color:var(--b)}
details{background:#eaf2f9;border-radius:9px;padding:10px 12px;margin:9px 0}summary{font-weight:bold;color:var(--b);cursor:pointer}
button,.linkbtn{border:0;border-radius:9px;padding:11px 14px;font-weight:bold;cursor:pointer;margin:6px 5px 4px 0;text-decoration:none;display:inline-block;font:inherit;font-weight:700}
.done{background:var(--g);color:#fff}.bonus{background:#eee6fb;color:#583c87}.extra{background:#f7f2ff;padding:11px 13px;border-radius:9px;margin-top:6px}.hide{display:none!important}
.bottomnav{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:16px;border-top:1px solid #e2e8ed;padding-top:12px}
.finish{text-align:center;border-top:6px solid var(--y)}.trophy{font-size:3.5rem}.finish .links{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:18px}.linkbtn.primary{background:var(--b);color:#fff}.linkbtn.secondary{background:#e8edf2;color:#29435a}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}.tile{border:1px solid var(--line);border-radius:10px;padding:12px;background:#fafcfe}.tile b{color:var(--b)}
.chain{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:8px;align-items:center;margin:14px 0}.chain div{background:#eef4f8;border:1px solid #cfdce6;border-radius:10px;padding:14px;text-align:center}.arrow{font-size:1.4rem;color:var(--b);font-weight:bold}
.filecard{border:1px solid var(--line);border-radius:10px;padding:12px;margin:8px 0;background:#fafcfe}.ext{font-family:Consolas,monospace;font-weight:bold;color:var(--b);font-size:1.05rem}
.sizebar{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;margin:12px 0}.sizebar div{border-radius:9px;background:#eef4f8;padding:10px;text-align:center;border:1px solid #d6e0e8}.sizebar b{display:block;color:var(--b)}
.case{background:#f6f8fa;border-left:5px solid var(--b);padding:12px 14px;border-radius:8px}.warn{background:#fff0f0;border-left:5px solid #a43e3e;padding:10px 12px;border-radius:8px}
kbd{border:1px solid #aeb8c2;border-bottom-width:3px;border-radius:5px;background:#fff;padding:.1em .4em} code{font-family:Consolas,monospace}
footer{background:#17344d;color:#fff;padding:17px 0}
@media(max-width:650px){.grid2,.sizebar{grid-template-columns:1fr 1fr}.chain{grid-template-columns:1fr}.arrow{transform:rotate(90deg);text-align:center}.bottomnav{flex-direction:column-reverse;align-items:stretch}.bottomnav button{width:100%}}

/* Interaktive Bausteine – bewusst im bestehenden Moduldesign */
.interactive{margin:15px 0;padding:14px;background:#fafcfe;border:1px solid var(--line);border-radius:10px}
.interactive h3{margin:.1rem 0 .5rem;color:var(--b)}
.taskpool,.mcoptions,.chosen{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.taskcard,.mcoptions button{margin:0;border:1px solid #cfdce6;border-radius:9px;background:#eef4f8;color:var(--ink);padding:10px 12px}
.taskcard:hover,.mcoptions button:hover{border-color:var(--b2)}
.taskcard.selected{outline:2px solid var(--b2);background:#eaf2f9}
.taskcard.correct,.mcoptions button.correct{background:#e9f5ee;border-color:var(--g)}
.mcoptions button.wrong{background:#fff0f0;border-color:#a43e3e}
.feedback{background:#eaf2f9;border-radius:8px;padding:10px 12px;margin:10px 0}
.feedback.good,.success{background:#e9f5ee;border-left:5px solid var(--g)}
.feedback.bad{background:#fff0f0;border-left:5px solid #a43e3e}
.reset,.finalbutton,.simulate{background:#e8edf2;color:#29435a}
.answerline{background:#fff;border:1px solid var(--line);border-radius:9px;padding:10px}
.taskcard.used{opacity:.4;pointer-events:none}
.mini-bar,.simbar{height:10px;background:#e5ebf0;border-radius:20px;overflow:hidden;margin:9px 0}.mini-bar i,.simbar i{display:block;height:100%;width:0;background:var(--g);transition:.4s}.simbar i{width:100%;background:var(--b2)}
.dropgrid{display:grid;gap:8px;margin:10px 0}.dropgrid.four{grid-template-columns:repeat(4,1fr)}
.dropzone{min-height:125px;border:2px dashed #c3d1dc;border-radius:10px;background:#fff;padding:10px;text-align:center}.dropzone.dragover{background:#eaf2f9;border-color:var(--b2)}
.dropped{display:flex;flex-wrap:wrap;gap:5px;justify-content:center;margin-top:8px}.dropped .taskcard{padding:7px 8px}
.success{padding:10px 12px;border-radius:8px}
.simfile{display:flex;justify-content:space-between;align-items:center;padding:12px 2px;font-size:1.05rem}
@media(max-width:760px){.dropgrid.four{grid-template-columns:1fr 1fr}}@media(max-width:480px){.dropgrid.four{grid-template-columns:1fr}}

/* Zweistufige Profi-Challenges */
.profi-box{border-left:6px solid #c14c9a;background:#fff3fb}
.profi-box h3{color:#8f2c71}
.profi-think{margin:12px 0;padding:11px 12px;border-radius:8px;background:#fff;border:1px solid #efc9e3}
.profi-tool-btn{background:#c14c9a;color:#fff}
.profi-tool{margin-top:14px;padding-top:12px;border-top:1px dashed #d9a8c9}

.footerlink{color:#eaf0f5;text-decoration:underline;text-underline-offset:3px}
.footerlink:hover,.footerlink:focus{color:#fff}
.footersep{opacity:.6;padding:0 .45rem}