.luca-lkw{--bg:#f2f6fa;--card:#fff;--text:#182d40;--muted:#526579;--border:#bac9d6;--accent:#075e70;box-sizing:border-box;background:var(--bg);color:var(--text);border-radius:22px;padding:clamp(16px,4vw,36px);font:18px/1.6 system-ui,sans-serif;max-width:900px;margin:24px auto}.luca-lkw *{box-sizing:border-box}.luca-lkw.luca-dark{--bg:#101b27;--card:#1a2a3a;--text:#f2f6fa;--muted:#bdcbd8;--border:#60778c;--accent:#116f80;color-scheme:dark}.luca-lkw h2,.luca-lkw h3,.luca-lkw h4{color:var(--text);line-height:1.4;margin:12px 0}.luca-lkw h2{font-size:30px}.luca-lkw h3{font-size:24px}.luca-lkw p{margin:12px 0}.luca-head,.luca-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.luca-head{justify-content:space-between}.luca-eyebrow{font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--muted)}.luca-controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin:24px 0}.luca-lkw select{display:block;width:100%;margin-top:6px;padding:12px;border:1px solid var(--border);border-radius:10px;background:var(--card);color:var(--text);font:inherit;min-height:48px}.luca-lkw button{background:var(--accent);color:#fff;border:2px solid transparent;border-radius:12px;padding:12px 18px;min-height:48px;font:600 16px/1.5 system-ui;cursor:pointer;white-space:normal}.luca-lkw button:disabled{opacity:.6;cursor:default}.luca-lkw :focus-visible{outline:3px solid #e7a900;outline-offset:4px}.luca-card{background:var(--card);padding:clamp(16px,3vw,28px);border:1px solid var(--border);border-radius:18px}.luca-card img,.luca-card video{display:block;max-width:100%;height:auto;border-radius:10px;margin:16px auto}.luca-card fieldset{border:0;padding:0;margin:20px 0;min-width:0}.luca-card legend{font-size:16px;color:var(--muted);margin-bottom:12px}.luca-answer{display:flex;align-items:flex-start;flex-wrap:wrap;gap:12px;border:2px solid var(--border);border-radius:12px;padding:16px;margin-bottom:12px;cursor:pointer}.luca-answer input{flex:0 0 auto;width:23px;height:23px;margin-top:4px;accent-color:var(--accent)}.luca-answer span{flex:1;min-width:150px}.luca-answer small{display:block;flex-basis:100%;font-weight:600}.luca-answer img{max-height:240px;object-fit:contain}.luca-answer.luca-correct{border-color:#178049}.luca-answer.luca-wrong{border-color:#c94a42}.luca-joke{border-left:4px solid #d5a52c;padding:12px 18px;background:var(--bg);border-radius:8px}.luca-status{font-weight:600}.luca-stats,.luca-footnote{font-size:14px;color:var(--muted)}.luca-card h3:focus{outline:none}@media(max-width:480px){.luca-actions button{width:100%}.luca-lkw{font-size:17px}.luca-lkw h2{font-size:26px}}
.luca-road{position:relative;min-height:100px;background:repeating-linear-gradient(90deg,var(--border) 0 26px,transparent 26px 42px) center 74px/100% 3px no-repeat,var(--bg);border-radius:12px;margin:22px 0;overflow:hidden}.luca-truck{position:absolute;left:0;top:10px;font-size:48px;transform:scaleX(-1);transition:left .65s ease}.luca-depot{position:absolute;right:12px;top:36px;font-size:14px;letter-spacing:.08em;font-weight:700}.luca-game-choices{display:grid;gap:12px;margin:20px 0}.luca-game-choices button{text-align:left;width:100%;background:var(--card);color:var(--text);border:2px solid var(--border)}.luca-game-choices button small{display:block;margin-top:8px}.luca-game-choices .luca-delivered{border-color:#178049}.luca-game-choices img{display:block;max-width:100%;height:auto;max-height:220px;object-fit:contain}.luca-game-choices button:disabled{opacity:1;cursor:default}.luca-board{margin:16px 0 24px;padding:20px;background:var(--card);border:1px solid var(--border);border-radius:16px}.luca-board h3{font-size:22px}.luca-board p{font-size:15px}.luca-board details{margin-top:14px}.luca-board summary{cursor:pointer;min-height:44px;padding:10px 0}.luca-board table{width:100%;border-collapse:collapse;table-layout:fixed;font-size:15px;margin-top:12px}.luca-board th,.luca-board td{text-align:left;vertical-align:top;padding:10px 5px;border-bottom:1px solid var(--border);overflow-wrap:anywhere}.luca-board th:first-child{width:50%}.luca-board caption{text-align:left;color:var(--muted);padding-bottom:10px}@media(prefers-reduced-motion:reduce){.luca-truck{transition:none}}

.luca-number{display:block;margin:16px 0}.luca-number input{display:block;max-width:100%;width:240px;background:var(--card);color:var(--text);font:inherit;padding:14px;border:2px solid var(--border);border-radius:10px;margin:8px 0;min-height:50px}.luca-number.luca-correct input{border-color:#178049}.luca-number.luca-wrong input{border-color:#c94a42}
.mission-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:12px;margin-top:24px}.mission-grid button{text-align:left;min-height:84px}.mission-grid small{display:block;font-weight:400;margin-top:5px}#mission-play>a{display:inline-block;color:var(--text);margin:12px 0}#mission-play>button{margin:8px}#mission-play h1{font-size:32px}

/* Answer review: distinguish missed answers from incorrect selections. */
.luca-lkw .luca-secondary{background:transparent;color:var(--accent);border-color:var(--border)}
.luca-lkw.luca-dark .luca-secondary{color:var(--text)}
.luca-answer.luca-correct,.luca-number.luca-correct{background:#eaf7ef;border-color:#187448;color:#143c29}
.luca-answer.luca-wrong,.luca-number.luca-wrong{background:#fff0ee;border-color:#b93832;color:#612722}
.luca-answer.luca-missed{background:#fff7df;border-color:#9a6900;color:#513b12;border-style:dashed}
.luca-answer.luca-neutral{background:var(--bg);border-color:var(--border)}
.luca-answer .luca-answer-note{font-size:15px;line-height:1.5;margin-top:5px}
.luca-feedback{margin-top:24px;border:2px solid var(--border);border-radius:16px;padding:clamp(16px,3vw,24px);scroll-margin-top:20px;background:var(--card)}
.luca-feedback-good{border-color:#187448}.luca-feedback-review{border-color:#9a6900}
.luca-feedback h4:first-child{font-size:23px;margin-top:0}.luca-feedback h4:focus{outline:none}
.luca-forward{border-top:1px solid var(--border);margin-top:24px;padding-top:20px}
.luca-lkw .luca-next{display:block;width:100%;min-height:58px;font-size:18px;background:var(--accent);color:#fff}
.luca-lkw [hidden]{display:none!important}
@media(prefers-reduced-motion:reduce){.luca-lkw *{scroll-behavior:auto!important;transition:none!important}}