:root {
  color-scheme: light;
  --cp-bg: #f7f4ef;
  --cp-bg-elevated: #fcfbf8;
  --cp-surface: #ffffff;
  --cp-surface-soft: #f5f5f5;
  --cp-border: #dedede;
  --cp-border-strong: #919191;
  --cp-text: #242424;
  --cp-text-muted: #5c5c5c;
  --cp-text-soft: #6f6f6f;
  --cp-accent: #b11f4b;
  --cp-accent-hover: #9a1a41;
  --cp-accent-soft: rgba(177, 31, 75, 0.08);
  --cp-accent-fg: #ffffff;
  --cp-success: #16a34a;
  --cp-danger: #dc2626;
  --cp-warning: #f59e0b;
  --cp-link: #0078d4;
  --cp-shadow: 0 18px 48px rgba(0, 0, 0, 0.12);
  --cp-overlay: rgba(255, 255, 255, 0.8);
  --cp-panel: rgba(255, 255, 255, 0.86);
  --cp-panel-strong: rgba(255, 255, 255, 0.96);
  --cp-sheen: rgba(255, 255, 255, 0.55);
  --cp-highlight: rgba(177, 31, 75, 0.12);
}
html[data-theme="dark"] {
  color-scheme: dark;
  --cp-bg: #3d3b3a;
  --cp-bg-elevated: #343231;
  --cp-surface: #292929;
  --cp-surface-soft: #2e2e2e;
  --cp-border: #474747;
  --cp-border-strong: #5f5f5f;
  --cp-text: #dedede;
  --cp-text-muted: #919191;
  --cp-text-soft: #b0b0b0;
  --cp-accent: #fd8ea1;
  --cp-accent-hover: #fb7b91;
  --cp-accent-soft: rgba(253, 142, 161, 0.14);
  --cp-accent-fg: #1a1a1a;
  --cp-success: #4ade80;
  --cp-danger: #f87171;
  --cp-warning: #fbbf24;
  --cp-link: #4da6ff;
  --cp-shadow: 0 18px 48px rgba(0, 0, 0, 0.32);
  --cp-overlay: rgba(41, 41, 41, 0.88);
  --cp-panel: rgba(41, 41, 41, 0.72);
  --cp-panel-strong: rgba(41, 41, 41, 0.96);
  --cp-sheen: rgba(255, 255, 255, 0.04);
  --cp-highlight: rgba(253, 142, 161, 0.12);
}
.atlas-intro{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);gap:24px;align-items:stretch;margin-bottom:28px}
.atlas-panel{padding:28px;background:var(--cp-surface);border:1px solid var(--cp-border);border-radius:16px;box-shadow:0 0 2px var(--cp-border),0 1px 2px var(--cp-border)}
.atlas-panel h2{margin:6px 0 12px}.atlas-panel p{color:var(--cp-text-muted)}
.atlas-jump{display:grid;gap:8px;align-content:start}.atlas-jump a{display:flex;justify-content:space-between;gap:12px;padding:11px 12px;border:1px solid var(--cp-border);border-radius:.625rem;background:var(--cp-surface-soft);color:var(--cp-text);font-weight:700}.atlas-jump a:hover{border-color:var(--cp-accent);color:var(--cp-accent)}
.atlas-filters{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px}.atlas-filter{border:1px solid var(--cp-border-strong);border-radius:.625rem;background:var(--cp-surface);color:var(--cp-text);padding:9px 13px;font:inherit;font-weight:700;cursor:pointer}.atlas-filter[aria-pressed="true"]{border-color:var(--cp-accent);background:var(--cp-accent);color:var(--cp-accent-fg)}.atlas-filter:focus-visible{outline:3px solid var(--cp-highlight);outline-offset:2px}
.atlas-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.atlas-story{overflow:hidden;background:var(--cp-surface);border:1px solid var(--cp-border);border-radius:16px;box-shadow:0 0 2px var(--cp-border),0 1px 2px var(--cp-border)}.atlas-story[hidden]{display:none}.atlas-story>img{display:block;width:100%;height:240px;object-fit:cover;background:var(--cp-surface-soft)}.atlas-body{padding:24px}.atlas-body h2{margin:5px 0 10px;font-size:clamp(1.45rem,3vw,2rem)}.atlas-body p{color:var(--cp-text-muted)}.atlas-kicker{color:var(--cp-accent);font-size:.75rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.story-stops{margin:17px 0;padding:0;list-style:none;display:grid;gap:8px}.story-stops li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-top:1px solid var(--cp-border)}.story-stops span{font-weight:700}.story-stops small{display:block;color:var(--cp-text-muted);font-weight:400}.story-stops button{flex:none;border:1px solid var(--cp-border-strong);border-radius:.625rem;background:var(--cp-surface);color:var(--cp-text);padding:7px 9px;font:inherit;font-size:.76rem;font-weight:700;cursor:pointer}.story-stops button:hover{border-color:var(--cp-accent);color:var(--cp-accent)}
.atlas-actions{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}.atlas-route{border:1px solid var(--cp-accent);border-radius:.625rem;background:var(--cp-accent);color:var(--cp-accent-fg);padding:9px 12px;font:inherit;font-weight:700;cursor:pointer}.atlas-route:hover{background:var(--cp-accent-hover)}.atlas-source{color:var(--cp-link);font-size:.82rem;font-weight:700;text-decoration:underline;text-underline-offset:2px}
.atlas-status{min-height:24px;margin:18px 0;color:var(--cp-text-muted);font-weight:700}.atlas-method{margin-top:34px;padding:24px;background:var(--cp-surface-soft);border-left:4px solid var(--cp-accent);border-radius:.625rem}.atlas-method a{color:var(--cp-accent);text-decoration:underline}
.atlas-chronology{margin-top:48px}.atlas-timeline{position:relative;display:grid;grid-template-columns:repeat(7,minmax(150px,1fr));gap:12px;margin:22px 0 0;padding:0 0 10px;list-style:none;overflow-x:auto}.atlas-timeline::before{content:"";position:absolute;top:27px;left:20px;right:20px;height:2px;background:var(--cp-border-strong)}.atlas-era{position:relative;min-width:150px;padding-top:50px}.atlas-era::before{content:"";position:absolute;top:20px;left:14px;width:16px;height:16px;border:4px solid var(--cp-surface);border-radius:50%;background:var(--cp-accent);box-shadow:0 0 0 2px var(--cp-accent)}.atlas-era time{display:block;color:var(--cp-accent);font-size:.76rem;font-weight:900;letter-spacing:.06em;text-transform:uppercase}.atlas-era h3{margin:5px 0 7px;font-size:1rem}.atlas-era p{color:var(--cp-text-muted);font-size:.8rem}.atlas-era a{display:inline-flex;min-height:44px;align-items:center;color:var(--cp-accent);font-size:.76rem;font-weight:800;text-decoration:underline}
.atlas-research{margin-top:48px;padding:30px;background:var(--cp-bg-elevated);border:1px solid var(--cp-border);border-radius:16px}.atlas-research-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:22px}.atlas-research-card{padding:22px;background:var(--cp-surface);border:1px solid var(--cp-border);border-radius:16px}.atlas-research-card h3{margin:5px 0 12px}.atlas-chain{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;margin:0;padding:0;list-style:none;counter-reset:evidence}.atlas-chain li{min-width:0;padding:9px 7px;border-top:3px solid var(--cp-accent);background:var(--cp-surface-soft);color:var(--cp-text-soft);font-size:.72rem}.atlas-chain li::before{counter-increment:evidence;content:counter(evidence);display:block;color:var(--cp-accent);font-weight:900}.atlas-research-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.atlas-research-actions a,.atlas-research-actions button{display:inline-flex;min-height:44px;align-items:center;padding:8px 10px;border:1px solid var(--cp-border-strong);border-radius:.625rem;background:var(--cp-surface);color:var(--cp-link);font:700 .78rem/1.25 "Segoe UI",Aptos,Calibri,-apple-system,BlinkMacSystemFont,sans-serif;text-decoration:none;cursor:pointer}.atlas-research-actions a:hover,.atlas-research-actions button:hover{border-color:var(--cp-accent);background:var(--cp-accent-soft);color:var(--cp-accent)}
.atlas-compare{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:22px;align-items:center;margin-top:22px;padding:22px;border-left:4px solid var(--cp-warning);background:var(--cp-surface-soft);border-radius:.625rem}.atlas-compare p{color:var(--cp-text-soft)}.atlas-compare a{display:inline-flex;min-height:44px;align-items:center;padding:9px 12px;border-radius:.625rem;background:var(--cp-accent);color:var(--cp-accent-fg);font-weight:800}
@media(max-width:820px){.atlas-intro,.atlas-grid{grid-template-columns:1fr}.atlas-story>img{height:210px}}
@media(max-width:760px){.atlas-research-grid,.atlas-compare{grid-template-columns:1fr}.atlas-chain{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:520px){.atlas-panel,.atlas-body,.atlas-research{padding:18px}.story-stops li{align-items:flex-start;flex-direction:column}}