.challenge-hero,.challenge-layout{width:min(var(--max-width),calc(100% - 48px));margin:auto}.challenge-hero{padding:78px 0 55px}.challenge-hero h1{margin:0;font-size:clamp(44px,5.3vw,69px);line-height:1.07;letter-spacing:-3.5px}.challenge-hero h1 em{color:var(--blue);font-style:normal}.challenge-hero>p:not(.eyebrow){max-width:640px;color:var(--muted);font-size:17px;line-height:1.7}.privacy-chip{display:inline-block;margin-top:13px;padding:7px 11px;border:1px solid #2d4c70;border-radius:5px;color:#a6bad2;background:#0c1b2e;font-size:12px}.challenge-layout{display:grid;grid-template-columns:300px 1fr;min-height:490px;border:1px solid var(--border);border-radius:11px;overflow:hidden;background:#0c192a}.challenge-side{padding:31px 26px;background:#091624;border-right:1px solid var(--border)}.side-label,.fiction-tag{color:#91b7ff;font:11px 'DM Mono',monospace;letter-spacing:1px}.challenge-side h2{margin:8px 0 9px;font-size:27px;line-height:1.15;letter-spacing:-1px}.challenge-side>p:not(.side-label){color:var(--muted);font-size:14px}.progress-wrap{margin-top:35px}.progress-wrap>div:first-child{display:flex;justify-content:space-between;gap:10px;color:#9bb0c9;font-size:12px}.progress-wrap strong{color:#e1eaf7}.progress-track{height:5px;margin-top:10px;border-radius:99px;background:#1a2b40;overflow:hidden}.progress-track span{display:block;width:20%;height:100%;background:var(--blue);transition:width .25s}.restart{margin-top:23px;border:1px solid #426a9d;border-radius:5px;padding:9px 11px;background:transparent;color:#c3d8f7;font-weight:700;font-size:12px}.challenge-card{padding:43px max(30px,5vw);max-width:830px}.scenario-channel{margin:20px 0 7px;color:#91a3b9;font:12px 'DM Mono',monospace}.challenge-card h3{margin:0;font-size:22px;letter-spacing:-.7px}.scenario-message{margin:20px 0;padding:18px;border-left:3px solid #527eb9;background:#091624;color:#d1dbe7;font-size:15px;line-height:1.7}.question{font-weight:700;font-size:15px}.answer-list{display:grid;gap:9px}.answer-list button{padding:13px 15px;border:1px solid #2a415e;border-radius:6px;background:#0b192a;color:#d2deeb;text-align:left;font-size:14px;transition:.15s}.answer-list button:hover:not(:disabled){border-color:#6297e6;background:#10233c}.answer-list button:disabled{cursor:default}.answer-list button.correct{border-color:#51d693;background:#51d69312;color:#c9f5df}.answer-list button.incorrect{border-color:#ff6578;background:#ff657812;color:#ffc4cc}.answer-feedback{margin-top:22px;padding:16px;border-radius:7px;background:#0a1726}.answer-feedback strong{font-size:15px}.answer-feedback p{margin:6px 0 13px;color:#aebed0;font-size:14px}.answer-feedback button{border:0;border-radius:5px;padding:10px 14px;background:var(--blue);color:#fff;font-size:13px;font-weight:700}.decision{display:grid;grid-template-columns:4fr 8fr;gap:9%;padding:88px 0}.decision-copy h2,.level-section h2{margin:0;font-size:40px;line-height:1.12;letter-spacing:-2px}.decision-copy>p:last-child{color:var(--muted)}.decision-card{padding:25px;border:1px solid #354e6d;border-radius:9px;background:#0b192a}.decision-message{margin:13px 0 21px;font-size:17px;line-height:1.65}.decision-buttons{display:flex;gap:10px;flex-wrap:wrap}.decision-buttons button{padding:11px 13px;border:1px solid #355575;border-radius:6px;background:transparent;color:#c7d8eb;font-size:13px;font-weight:700}.decision-buttons button:hover{border-color:var(--blue);background:#132a48}.decision-feedback{min-height:23px;margin:17px 0 0;color:#9edec0;font-size:13px}.level-section{padding:77px 0 88px;border-top:1px solid var(--border)}.level-section h2{font-size:37px}.level-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:36px}.level-grid article{padding:20px;border:1px solid var(--border);border-radius:8px;background:#0a1726}.level-grid span{color:#86abed;font:12px 'DM Mono',monospace}.level-grid h3{margin:17px 0 6px;font-size:16px}.level-grid p{margin:0;color:var(--muted);font-size:13px}@media(max-width:800px){.challenge-hero,.challenge-layout{width:min(100% - 36px,var(--max-width))}.challenge-layout{grid-template-columns:1fr}.challenge-side{border-right:0;border-bottom:1px solid var(--border)}.challenge-side{padding:25px}.progress-wrap{margin-top:20px}.decision{grid-template-columns:1fr;gap:30px}.level-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:560px){.challenge-hero,.challenge-layout{width:calc(100% - 32px)}.challenge-hero{padding:51px 0 42px}.challenge-hero h1{font-size:41px;letter-spacing:-2.5px}.challenge-card{padding:27px 18px}.decision{padding:63px 0}.decision-copy h2,.level-section h2{font-size:32px;letter-spacing:-1.5px}.level-grid{grid-template-columns:1fr}.level-section{padding:62px 0}.scenario-message{font-size:14px}}