.atlas-header {display:flex;justify-content:space-between;align-items:center;padding:24px 48px;border-bottom:1px solid var(--line)}
.atlas-header nav {display:flex;gap:26px;font-size:13px}
.atlas-intro {padding:80px 0 55px;max-width:1120px}
.atlas-intro h1 {font-size:clamp(46px,7vw,100px);line-height:1.02;letter-spacing:-.06em;margin:22px 0 28px;font-weight:500}
.atlas-lead {font-size:clamp(20px,2.4vw,30px);line-height:1.45;max-width:850px;margin-bottom:18px}
.atlas-intro>p:last-of-type {color:var(--muted);font-size:13px}
.atlas-counts {display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid var(--line);margin:38px 0}
.atlas-counts>div {display:flex;gap:20px;align-items:center;padding:20px 24px;border-right:1px solid var(--line)}
.atlas-counts>div:first-child {padding-left:0}
.atlas-counts>div:last-child {border:0}
.atlas-counts strong {font-size:45px;font-weight:500;line-height:1}
.atlas-counts span {font-size:13px;max-width:160px;line-height:1.5}
.atlas-evidence {max-width:980px;font-size:14px;line-height:1.8}
.atlas-evidence p+p {margin-top:12px;color:var(--muted)}
.atlas-reading-links {display:flex;flex-wrap:wrap;gap:15px 30px;margin-top:25px;font-size:13px;text-decoration:underline;text-underline-offset:5px}
.atlas-toolbar {display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;border-top:1px solid var(--line);padding:22px 0}
.atlas-filters {display:flex;flex-wrap:wrap;gap:8px}
.atlas-filters button {border:1px solid var(--line);background:transparent;padding:10px 16px;font-size:13px}
.atlas-filters button[aria-pressed="true"] {background:var(--forest);color:white;border-color:var(--forest)}
#artifact-count {font-size:12px;color:var(--muted)}
.atlas-grid {display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:34px 32px}
.artifact {min-width:0;border-top:1px solid var(--line);padding-top:24px;scroll-margin-top:20px}
.artifact h2 {font-size:30px;line-height:1.2;letter-spacing:-.03em;font-weight:500;margin:8px 0 14px}
.artifact-meta {display:flex;flex-wrap:wrap;gap:7px 14px;color:var(--muted);font-size:11px;min-height:38px}
.artifact-meta>span:first-child {color:var(--forest);font-weight:600}
.diagram-preview {display:block;width:100%;padding:0;margin:12px 0 20px;position:relative;border:1px solid var(--line);background:var(--soft);overflow:hidden}
.diagram-preview svg {width:100%;height:auto;aspect-ratio:1.65;display:block;font-family:var(--font)}
.diagram-preview:hover {border-color:var(--forest)}
.diagram-hint {display:block;padding:9px 14px;background:var(--white);border-top:1px solid var(--line);font-size:12px;text-align:right}
.artifact-reading {display:grid;gap:14px;margin:0 0 18px}
.artifact-reading dt {font-size:11px;letter-spacing:.07em;text-transform:uppercase;font-weight:600;margin-bottom:3px}
.artifact-reading dd {margin:0;color:var(--muted);font-size:13px;line-height:1.7}
.artifact .source-link {font-size:12px}
.atlas-next {margin-top:80px;padding:50px 0 70px;border-top:1px solid var(--line);max-width:900px}
.atlas-next h2 {font-size:clamp(32px,4vw,54px);line-height:1.15;font-weight:500;letter-spacing:-.04em;margin:16px 0 22px}
.atlas-next p:not(.eyebrow) {max-width:720px;color:var(--muted);margin-bottom:25px}
#diagram-title {font-size:25px;font-weight:500;margin:12px 0}
#diagram-instruction,#diagram-context {font-size:13px;color:var(--muted);margin:12px 0}
#diagram-canvas {overflow:auto;max-height:65vh;background:var(--white);border:1px solid var(--line);overscroll-behavior:contain}
#diagram-canvas svg {display:block;min-width:1000px;width:100%;height:auto;font-family:var(--font)}
#diagram-context {max-width:850px}
@media(max-width:960px) {.atlas-header{padding:20px 32px}.atlas-counts>div{gap:12px;padding-inline:16px}.atlas-grid{gap:30px 20px}.artifact h2{font-size:25px}}
@media(max-width:760px) {.atlas-header{padding:18px 20px}.atlas-header .wordmark span{display:none}.atlas-header nav{gap:16px;font-size:12px}.atlas-intro{padding-top:48px}.atlas-grid{grid-template-columns:1fr}.artifact-meta{min-height:0}.atlas-counts{margin:26px 0}.atlas-counts>div{display:block;padding:16px 12px}.atlas-counts strong{font-size:34px}.atlas-counts span{display:block;font-size:11px;margin-top:8px}.atlas-reading-links{display:grid;gap:14px}.atlas-filters button{padding:9px 10px;font-size:12px}.artifact h2{font-size:29px}.diagram-preview svg{aspect-ratio:auto;max-height:330px}.atlas-next{margin-top:48px}}
@media print {.atlas-header,.atlas-toolbar,.diagram-hint,.atlas-next,.site-footer{display:none}.atlas-grid{display:block}.artifact{break-inside:avoid;margin-bottom:35px}.artifact[hidden]{display:block!important}.diagram-preview svg{aspect-ratio:auto}.atlas-intro{padding-top:0}}