*{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}

/* Binär-Labor – Ergänzungen im bestehenden Portaldesign */
.story{background:#fff4d6;border-left:5px solid var(--y);padding:13px 15px;border-radius:8px;margin:12px 0}.discovery{background:#e9f5ee;border-left:5px solid var(--g);padding:11px 13px;border-radius:8px;margin:14px 0}.visualcards{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:12px 0}.visualcard{border:1px solid var(--line);border-radius:12px;background:#fff;padding:8px;text-align:center}.visualcard img{display:block;width:100%;border-radius:9px}.visualcard b{display:block;margin-top:5px;color:var(--b)}
.binary-zones{grid-template-columns:1fr 1fr}.switchrow{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:14px 0}.bitswitch{min-width:82px;text-align:center;border:1px solid #cfdce6;border-radius:12px;background:#eef4f8;padding:10px}.bitswitch button{width:54px;height:54px;border-radius:50%;margin:4px auto;background:#e8edf2;color:#29435a;font-size:1.25rem}.bitswitch.on button{background:var(--g);color:#fff}.bitswitch .weight{display:block;font-weight:bold;color:var(--b);font-size:1.1rem}.bitswitch .bit{font-family:Consolas,monospace;font-size:1.25rem;font-weight:bold}.decimal-display{font-size:1.5rem;text-align:center;background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px;margin:10px 0}.targetrow{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}.targetrow button{background:#e8edf2;color:#29435a}.targetrow button.hit{background:var(--g);color:#fff}.equation{text-align:center;font-family:Consolas,monospace;font-weight:bold;margin:8px 0;color:var(--b)}
.codebox{font-family:Consolas,monospace;background:#17344d;color:#fff;border-radius:9px;padding:12px;overflow:auto;white-space:pre-wrap}.codeinput{width:100%;max-width:420px;border:2px solid #cfdce6;border-radius:9px;padding:10px;font:1.05rem Consolas,monospace}.taskline{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:10px 0}.taskline input{width:120px;border:1px solid #b9c8d4;border-radius:8px;padding:9px;font:1rem Consolas,monospace}
.pixel-wrap{overflow-x:auto;padding-bottom:4px}.pixelgrid{display:grid;gap:2px;width:max-content;margin:12px auto;background:#c9d5df;padding:3px;border-radius:5px}.pixelgrid.g8{grid-template-columns:repeat(8,30px)}.pixelgrid.g24{grid-template-columns:repeat(24,15px)}.pixel{width:30px;height:30px;border:0;border-radius:2px;background:#fff;margin:0;padding:0}.g24 .pixel{width:15px;height:15px}.pixel.on{background:#203040}.pixel-code{font-family:Consolas,monospace;font-size:.92rem;background:#f6f8fa;border:1px solid var(--line);border-radius:9px;padding:10px;white-space:pre;overflow:auto}.pixeltools{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.pixeltools button{background:#e8edf2;color:#29435a}.c64-screen{position:relative;overflow:hidden;height:280px;background:#3b5dc9;border:18px solid #7c86df;border-radius:8px;margin:12px 0}.c64-inner{position:absolute;inset:20px;background:#3b5dc9}.balloon{position:absolute;left:10px;top:10px;display:grid;grid-template-columns:repeat(24,4px);gap:0;transition:none}.balloon i{display:block;width:4px;height:4px;background:transparent}.balloon i.on{background:#b8c6ff}.balloon.fly{animation:flyballoon 6s linear infinite}@keyframes flyballoon{0%{transform:translate(-20px,180px)}100%{transform:translate(650px,-40px)}}.teacherquote{background:#fff4d6;border-left:5px solid var(--y);padding:13px 15px;border-radius:8px;margin:14px 0;font-size:1.02rem}.byte-row{display:grid;grid-template-columns:repeat(8,1fr);gap:4px;max-width:520px;margin:10px auto}.byte-row span{text-align:center;padding:7px 2px;background:#eef4f8;border-radius:6px;font-family:Consolas,monospace}.byte-row .on{background:#e9f5ee;font-weight:bold;color:var(--g)}
.code-meaning{font-family:Consolas,monospace;font-size:1.5rem;font-weight:bold;text-align:center;padding:14px;background:#eef4f8;border-radius:10px}.encode-table{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin:10px 0}.encode-table div{background:#eef4f8;border:1px solid var(--line);border-radius:8px;padding:8px;text-align:center}.encode-table code{display:block;font-size:.85rem}.sourcebox{font-size:.9rem;color:var(--muted);border-top:1px solid var(--line);margin-top:18px;padding-top:12px}.sourcebox a{color:var(--b)}
@media(max-width:650px){.visualcards{grid-template-columns:1fr}.binary-zones{grid-template-columns:1fr}.pixelgrid.g8{grid-template-columns:repeat(8,25px)}.pixel{width:25px;height:25px}.encode-table{grid-template-columns:repeat(2,1fr)}}

/* Ergänzungen v2: Binärcode ohne formale Basisnotation + C64-Byte-Tipp */
.binary-readout{font-family:Consolas,monospace;font-size:1.5rem;font-weight:700;letter-spacing:.08em;text-align:center;background:#f6f8fa;border:1px solid var(--line);border-radius:9px;padding:10px;margin:10px auto;max-width:360px}
.placevalue-mini{max-width:440px;margin:12px auto}.pv-head,.pv-bits{display:grid;grid-template-columns:repeat(5,1fr);text-align:center}.pv-head span{border:1px solid #8393a1;border-right:0;padding:5px;background:#fff;font-weight:700}.pv-head span:last-child{border-right:1px solid #8393a1}.pv-bits span{padding:5px;font-family:Consolas,monospace;font-size:1.05rem}.pv-bits .set{font-weight:700;color:var(--g)}
.c64-tip{margin:12px 0;background:#fff9e7;border:1px solid #ead59a}.c64-tip summary{color:#795f00}.byte-explain{max-width:680px;margin:12px auto}.byte-values,.byte-bits{display:grid;grid-template-columns:repeat(8,1fr);text-align:center}.byte-values span{padding:6px 2px;border:1px solid #465766;border-right:0;background:#fff;font-family:Arial,sans-serif}.byte-values span:last-child{border-right:1px solid #465766}.byte-bits span{padding:5px 2px;font-family:Consolas,monospace;font-size:1.05rem}.byte-bits .set{font-weight:700;color:var(--b)}.byte-sum{text-align:center}.byte-pixels{display:grid;grid-template-columns:repeat(8,24px);gap:2px;width:max-content;margin:10px auto}.byte-pixels span{width:24px;height:24px;background:#fff;border:1px solid #a9b4be}.byte-pixels span.on{background:#203040}.smallnote{font-size:.92rem;color:var(--muted);text-align:center}

/* Binär-Labor v3: klarere Bit-Anzeige und interaktiver C64-Sprite-Editor */
.bitswitch .bit{display:block;margin-top:5px;line-height:1.15}

.c64-editor{display:flex;align-items:flex-start;justify-content:flex-start;gap:18px;overflow-x:auto;margin:14px 0;padding-bottom:5px}
.c64-matrix-side{display:inline-block;flex:0 0 auto}
.c64-values-side{flex:0 0 auto}
.c64-byte-head{display:grid;text-align:center;font-size:.72rem;font-weight:700;letter-spacing:.03em;color:var(--b);margin-bottom:5px}
.c64-grid-head{grid-template-columns:repeat(3,1fr)}
.c64-values-head{grid-template-columns:repeat(3,62px);gap:5px}
.c64-byte-head span{background:#eaf2f9;border:1px solid #cfdce6;border-radius:6px;padding:4px 2px}
.pixelgrid.g24{grid-template-columns:repeat(24,18px);gap:1px;margin:0;background:#c9d5df;padding:3px;border-radius:5px}
.g24 .pixel{width:18px;height:18px;border:1px solid #d5dde4;border-radius:1px}
.g24 .pixel:nth-child(24n+8),.g24 .pixel:nth-child(24n+16){border-right:4px solid var(--b)}
.c64-byte-rows{display:grid;grid-template-rows:repeat(21,18px);gap:1px;padding:3px 0}
.c64-byte-row{display:grid;grid-template-columns:repeat(3,62px);gap:5px;height:18px}
.c64-byte-row span{display:flex;align-items:center;justify-content:center;background:#f6f8fa;border:1px solid var(--line);border-radius:3px;font:700 .78rem Consolas,monospace;color:#29435a;line-height:1}
.c64-editor-note{text-align:left;margin-top:-3px}
.encodetask .taskline .codeinput{width:360px;max-width:100%;flex:0 1 360px}
@media(max-width:650px){.c64-editor{gap:12px}.pixelgrid.g24{grid-template-columns:repeat(24,16px)}.g24 .pixel{width:16px;height:16px}.c64-byte-rows{grid-template-rows:repeat(21,16px)}.c64-byte-row{height:16px}.c64-byte-row span{font-size:.72rem}.encodetask .taskline .codeinput{width:100%;flex:1 1 100%}}


/* Geheime Nachrichten & formale Sprachen v2 – kompatible Ergänzungen */
.hidden{display:none!important}
.code-recap{margin:12px 0}
.code-recap .encode-table{grid-template-columns:repeat(5,minmax(72px,1fr))}
.sequence-box{background:#f6f8fa;border:1px solid var(--line);border-radius:9px;padding:11px 12px;margin:10px 0;font-family:Consolas,monospace}
.sequence-label{font-family:Arial,sans-serif;font-weight:700;color:var(--b);margin-right:8px}
.challenge-card{background:#eef4f8;border-left:5px solid var(--b2);padding:13px 15px;border-radius:8px;margin:12px 0}
.morse-table{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin:10px 0}
.morse-table div{background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px;text-align:center}
.morse-table code{display:block;font-size:1rem;margin-top:4px}
.layer-chain{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;margin:12px 0}
.layer-chain span{background:#eef4f8;border:1px solid var(--line);border-radius:10px;padding:9px 11px;font-weight:700}
.layer-chain .arr{background:transparent;border:0;padding:0}
.caesar-tool{display:grid;gap:10px}
.shift-control{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.shift-control input[type=range]{flex:1;min-width:220px;max-width:480px}
.stepbtn{min-width:46px;background:#e8edf2;color:#29435a;font-size:1.25rem}
.alpha{font-family:Consolas,monospace;background:#f6f8fa;border:1px solid var(--line);border-radius:9px;padding:10px;overflow:auto;white-space:nowrap;letter-spacing:.12em}
.biginput{width:min(100%,560px);border:2px solid #cfdce6;border-radius:9px;padding:10px;font:1.05rem Consolas,monospace}
.resultbox{background:#fff;border:1px solid var(--line);border-radius:9px;padding:11px 12px;margin:9px 0;min-height:24px}
.agentbox{background:#fff4d6;border-left:5px solid var(--y);padding:13px 15px;border-radius:8px;margin:12px 0}
.badge-ok{display:inline-block;background:#e9f5ee;color:var(--g);border-radius:999px;padding:4px 9px;font-weight:700}
.allshifts{display:grid;grid-template-columns:auto 1fr;gap:5px 12px;max-height:330px;overflow:auto;font-family:Consolas,monospace;background:#fff;border:1px solid var(--line);border-radius:9px;padding:10px}
.comm{display:flex;gap:8px;flex-wrap:wrap;align-items:center;justify-content:center;margin:16px 0}
.comm span{padding:10px 12px;border-radius:12px;background:#eef4f8;font-weight:700}
.comm .arrow{background:transparent}
.robot-legend{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.robot-legend span{background:#eef4f8;border-radius:9px;padding:8px 10px}
.robotwrap{display:grid;grid-template-columns:minmax(280px,1fr) minmax(280px,.9fr);gap:18px;align-items:start}
.gridbot{display:grid;grid-template-columns:repeat(6,42px);grid-template-rows:repeat(6,42px);gap:2px;width:max-content;padding:8px;background:#dbe4ec;border-radius:10px}
.cell{width:42px;height:42px;background:#fff;border-radius:4px;display:grid;place-items:center}
.bot{font-size:23px}
.commandline{display:flex;gap:6px;flex-wrap:wrap;margin:10px 0}
.commandtoken{font-family:Consolas,monospace;font-weight:700;background:#eef4f8;border:1px solid var(--line);border-radius:8px;padding:7px 9px}
.commandtoken.active{outline:3px solid var(--y);background:#fff4d6}
.syntax-info{background:#eaf2f9;border:1px solid #cfdce6;border-radius:10px;margin:12px 0}
.syntax-info summary{color:var(--b);font-weight:700}
.syntax-examples{display:grid;gap:6px;margin-top:8px}
.syntax-examples div{background:#fff;border-radius:8px;padding:8px 10px}
.syntax-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:12px 0}
.syntax-zone{min-height:145px;border:2px dashed #c3d1dc;border-radius:10px;background:#fff;padding:10px}
.syntax-zone h4{margin:.1rem 0 .5rem}
.syntax-items{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.syntax-item{font-family:Consolas,monospace;background:#eef4f8;color:var(--ink);border:1px solid #cfdce6;border-radius:9px;padding:9px 11px}
.syntax-item.selected{outline:2px solid var(--b2)}
.syntax-item.used{opacity:.42;pointer-events:none}
.lang-builder{display:grid;gap:10px}
.rulecard{background:#f6f8fa;border:1px solid var(--line);border-radius:9px;padding:10px}
.testpair{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media(max-width:720px){
  .robotwrap,.syntax-cards,.testpair{grid-template-columns:1fr}
  .morse-table{grid-template-columns:repeat(2,1fr)}
}


/* v3 – gezielte Korrekturen */
.minihelp{background:#eef4f8;border-left:4px solid var(--b2);border-radius:8px;padding:9px 11px}
.outputlabel{display:block;font-weight:800;color:var(--b);margin:10px 0 5px}
.selectable-output{user-select:text;-webkit-user-select:text}
.copy-steps{padding-left:1.5rem}.copy-steps li{margin:.35rem 0}
.decryptbox{background:#f6f8fa;border:1px solid var(--line);border-radius:10px;padding:12px;margin:12px 0}
.decrypt-switch{margin-top:10px}.toolbtn{cursor:pointer}
.robot-image-legend{display:grid;grid-template-columns:repeat(3,minmax(150px,1fr));gap:10px}
.robot-image-legend div{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;background:#eef4f8;border-radius:10px;padding:10px;text-align:center}
.robot-image-legend img{max-width:90px;max-height:70px;object-fit:contain}
.robot-image-legend small{display:block}
.syntax-item[draggable="true"]{cursor:grab}.syntax-item.dragging{opacity:.45}.syntax-zone.dragover{outline:3px solid var(--y);background:#fff8df}
@media(max-width:720px){.robot-image-legend{grid-template-columns:1fr}}


/* v4 – gezielt breitere Eingabefelder */
#plainText,
#agentCipher,
#interceptInput,
#langinput {
    width: 360px;
    max-width: 100%;
    flex: 0 1 360px;
}

@media(max-width:650px){
    #plainText,
    #agentCipher,
    #interceptInput,
    #langinput {
        width: 100%;
        flex: 1 1 100%;
    }
}

/* v5 – Roboter zeigt seine aktuelle Blickrichtung */
.bot-facing{width:30px;height:30px;object-fit:contain;display:block}
.bot-down{transform:rotate(180deg)}

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

.media-note{margin:.35rem 0 1rem;color:#687887;font-size:.82rem;font-style:italic}