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@media(max-width:420px){.hero{min-height:635px}.hero h1{font-size:5.6rem}.hero-actions{gap:17px}.hero-brief-link{font-size:.69rem}.hero-content>.eyebrow{font-size:.52rem}.hero-subtitle{font-size:.87rem}.hero-caption{font-size:.49rem}.brand strong{font-size:.79rem}.header-tools .text-button{font-size:.66rem}.brand small{font-size:.39rem}.answers{grid-template-columns:1fr}.answer{min-height:68px;font-size:.86rem;gap:13px;padding:16px}.crew-grid{grid-template-columns:1fr}.era-card h3{font-size:1.18rem}.era-card p{font-size:.6rem}.timeline{gap:12px}.question-shell{padding:26px 20px}.prompt,.question-shell h2{font-size:1.7rem}.briefing-copy h2{font-size:2.4rem}.briefing-card h3{font-size:1.8rem}.charge-label{font-size:.51rem}.hud-status>p:last-child{font-size:.64rem}.game-nav{gap:17px}.game-nav button{font-size:.62rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.era-card:hover:not(:disabled),.button:hover{transform:none}}
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/* Timeline card markup and reading order. */
.hub-intro{display:block}.hub-intro .toolbar{margin-top:24px}.era-card .era-meta{display:block;padding:18px 20px;margin:0;letter-spacing:.03em;font-size:.7rem}.era-card .era-meta>strong{display:block;font-family:var(--serif);font-size:1.55rem;font-weight:400;letter-spacing:-.02em;text-transform:none;margin:8px 0}.era-card .era-num{display:block;font-size:.6rem;margin:0;line-height:1.5}.era-card .era-meta>span:last-child{font-size:.7rem;color:var(--muted)}.timeline{margin-bottom:24px}
@media(max-width:700px){.era-card .era-meta{padding:14px}.era-card .era-meta>strong{font-size:1.3rem}.era-card .era-num{font-size:.5rem}}