:root{--ink:#18211d;--paper:#f4eddb;--cream:#fffaf0;--red:#d94a32;--green:#1c7553;--sun:#f4bd3a;--blue:#2b67a0;--line:#27312c;--muted:#706b5e;--shadow:7px 7px 0 var(--ink)}
*{box-sizing:border-box}html{background:var(--paper)}body{margin:0;color:var(--ink);font-family:"Courier New",Courier,monospace;background:radial-gradient(circle at 10% 12%,#ffd86a55 0 11%,transparent 12%),linear-gradient(#0000 31px,#23352b12 32px),var(--paper);background-size:auto,100% 32px;min-height:100vh}button,input,textarea{font:inherit}button,a{touch-action:manipulation}.shell{max-width:1180px;margin:auto;padding:26px 22px 64px}.topbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:28px}.brand{font-weight:800;letter-spacing:.08em;text-transform:uppercase}.source-link,.back{color:var(--ink);text-decoration:none;border-bottom:2px solid var(--ink)}h1,h2,h3{font-family:Georgia,"Times New Roman",serif;margin-top:0}h1{font-size:clamp(2.7rem,7vw,6.8rem);line-height:.86;letter-spacing:-.055em;max-width:920px;margin-bottom:24px}.kicker{display:inline-block;background:var(--sun);border:2px solid;padding:6px 9px;transform:rotate(-1deg);margin-bottom:20px}.lead{font-size:clamp(1rem,2vw,1.3rem);line-height:1.6;max-width:760px}.dashboard{display:grid;grid-template-columns:1fr 1.9fr;gap:22px;margin:44px 0}.card{background:var(--cream);border:2px solid var(--line);padding:22px;box-shadow:var(--shadow)}.status-big{font:800 3.3rem Georgia,"Times New Roman",serif}.progress{height:14px;border:2px solid;margin:15px 0;background:#fff}.progress>i{display:block;height:100%;background:var(--green);width:0}.legend{font-size:.8rem;color:var(--muted)}.task-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.task-tile{position:relative;display:flex;min-height:155px;flex-direction:column;justify-content:space-between;background:var(--cream);border:2px solid;color:inherit;text-decoration:none;padding:16px;transition:.16s transform,.16s box-shadow}.task-tile:hover,.task-tile:focus-visible{transform:translate(-3px,-3px);box-shadow:6px 6px 0 var(--ink);outline:none}.task-tile b{font:800 2rem Georgia,"Times New Roman",serif}.task-tile span{font-size:.78rem;line-height:1.4}.task-tile[data-state="sitzt"]{background:#d8f0df}.task-tile[data-state="wackelt"]{background:#ffe1d3}.task-tile.recommended:after{content:"JETZT";position:absolute;right:-7px;top:-10px;background:var(--red);color:#fff;padding:5px;transform:rotate(4deg)}.task-head{display:grid;grid-template-columns:1fr auto;gap:20px;align-items:end;border-bottom:3px solid;padding-bottom:22px}.task-head h1{font-size:clamp(2.7rem,6vw,5.2rem);margin:0}.counter{font:800 2rem Georgia,"Times New Roman",serif}.mission{display:grid;grid-template-columns:.9fr 1.4fr;gap:22px;margin:26px 0}.brief{background:var(--sun);border:2px solid;padding:22px;box-shadow:var(--shadow)}.brief h2{font-size:1.7rem}.brief p{line-height:1.55}.code{white-space:pre-wrap;background:#17231e;color:#edf5df;padding:18px;border:2px solid #08100c;overflow:auto;line-height:1.55;font-size:.9rem}.stepper{counter-reset:step}.step{background:var(--cream);border:2px solid;margin:18px 0;padding:20px;position:relative}.step h2:before{counter-increment:step;content:counter(step);display:inline-grid;place-items:center;width:36px;height:36px;background:var(--ink);color:#fff;margin-right:12px;border-radius:50%;font:500 1rem "Courier New",Courier,monospace}.prompt{font-size:1.05rem;line-height:1.6}.answer{width:100%;min-height:92px;border:2px solid;padding:14px;background:#fffdf7;resize:vertical}.choices{display:flex;flex-wrap:wrap;gap:10px}.choice,.action,.state-btn{border:2px solid var(--ink);background:#fff;padding:11px 14px;cursor:pointer;box-shadow:3px 3px 0 var(--ink)}.choice:hover,.action:hover,.state-btn:hover{transform:translateY(-2px)}.choice.selected{background:var(--sun)}.action.primary{background:var(--red);color:#fff}.hint{display:none;margin-top:14px;padding:14px;border-left:6px solid var(--blue);background:#e7f0f7;line-height:1.5}.hint.show{display:block;animation:open .25s ease}.feedback{display:none;margin-top:14px;padding:16px;border:2px dashed;line-height:1.6}.feedback.show{display:block}.feedback.good{background:#d8f0df}.feedback.try{background:#ffe7bc}.state-row{display:flex;gap:12px;margin-top:16px}.state-btn[data-value="sitzt"]{background:#d8f0df}.state-btn[data-value="wackelt"]{background:#ffe1d3}.nav-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:30px}.nav-bottom a{color:inherit;text-decoration:none;border:2px solid;padding:12px;background:var(--cream)}.tiny{font-size:.77rem;color:var(--muted);line-height:1.5}@keyframes open{from{opacity:0;transform:translateY(-7px)}}@media(max-width:850px){.dashboard,.mission{grid-template-columns:1fr}.task-grid{grid-template-columns:repeat(2,1fr)}.task-head{grid-template-columns:1fr}.shell{padding:18px 14px 44px}}@media(max-width:460px){.task-grid{grid-template-columns:1fr 1fr}.task-tile{min-height:135px}.state-row{flex-direction:column}h1{font-size:2.8rem}}