/* Hero refinement only. Fine raster lettering; no font binaries or filters. */
#top.hero-study{--cut-face:#252922;--cut-dark:#242821;--cut-light:#e3e1d4;--hero-secondary:#30362b}
.hero-concept-switch{flex-wrap:wrap}.hero-concept-switch button{white-space:nowrap}
.glyph-form>.cut-highlight{transform:translate(.35px,.45px);opacity:.5}
.glyph-form>.cut-shadow{transform:translate(-.3px,-.4px);opacity:.45}
.glyph-heritage{aspect-ratio:5567/1263}.glyph-spire{aspect-ratio:2994/1263;width:61%}
.glyph-line{aspect-ratio:8773/1263}
.artifact-signature{margin-top:26px;max-width:460px;width:55%}
.glyph-byline{display:block;width:100%;aspect-ratio:8444/1424;background:var(--cut-face);mask:url('assets/hero-study/word-byline.png') center/contain no-repeat;-webkit-mask:url('assets/hero-study/word-byline.png') center/contain no-repeat}
.artifact-verse{margin-top:8px;font-size:.9375rem}
.official-logo{position:relative;width:100%;aspect-ratio:1;overflow:hidden}
.official-logo img{position:absolute;left:-17.5%;top:-17.5%;width:135%;max-width:none;height:auto}
.official-logo .cg-dark{mix-blend-mode:multiply}.official-logo .cg-light{display:none;mix-blend-mode:lighten}
.artifact-emblem figcaption{margin-top:16px;font-size:.6875rem;letter-spacing:.13em}
.manuscript-heading{display:none}
/* Rough quarry face, strong dark cuts, no broad bevel that clogs tracery. */
@media(max-width:760px){#top.hero-study .study-bar{align-items:stretch}#top.hero-study .hero-concept-switch button{font-size:.6875rem;min-height:44px;padding:6px 3px}#top[data-concept=stone] .artifact-emblem{width:220px}}
#top.hero-study[data-concept=stone]{--hero-ink:#222920;--hero-secondary:#293025;--cut-face:#252a22;background:#aca998}
#top.hero-study[data-concept=stone]::before{opacity:1}
#top.hero-study[data-concept=stone]::after{background:linear-gradient(110deg,#ede9d21c,transparent 65%)}
#top[data-concept=stone] .artifact-type{position:relative;padding:22px 18px;margin-left:-18px;background:#e4e0cc29}
#top[data-concept=stone] .artifact-body{padding-top:24px;padding-bottom:10px}
#top[data-concept=stone] .artifact-emblem{width:100%;align-self:center}
#top[data-concept=stone] .hero-concept-switch{background:#e5e0cd99}
#top[data-concept=stone] .hero-study-footer{background:#e7e2cf66;padding:22px 20px;margin-top:22px;margin-bottom:22px}
#top[data-concept=stone] .artifact-metadata,#top[data-concept=stone] .hero-study-caption{background:#e8e3d157;padding:8px}
/* Satin metal: a single broad reflection instead of zebra chrome and heavy extrusion. */
#top.hero-study[data-concept=metal]{--hero-ink:#e1d9c7;--hero-secondary:#c9c7ba;--cut-face:linear-gradient(160deg,#d9d6c8,#b6b9b4 70%,#d3d0c1);--cut-light:#e4e1d2;--cut-dark:#101718}
#top.hero-study[data-concept=metal]::after{background:linear-gradient(90deg,#0c15164d,#0c15161a 45%,#0c151680)}
#top[data-concept=metal] .artifact-body{display:grid;grid-template-columns:minmax(0,1fr) 29%;gap:6%;min-height:470px;padding-top:48px;padding-bottom:25px}
#top[data-concept=metal] .artifact-emblem{order:0;width:100%;margin:0}
#top[data-concept=metal] .artifact-emblem figcaption{display:block}
#top[data-concept=metal] .artifact-type{text-align:left}
#top[data-concept=metal] .glyph-line{display:none}
#top[data-concept=metal] .glyph-heritage,#top[data-concept=metal] .glyph-spire{display:block}
#top[data-concept=metal] .glyph-spire{margin:0;width:61%}
#top[data-concept=metal] .artifact-signature{margin-top:26px;max-width:460px;width:55%}
#top[data-concept=metal] .artifact-verse{font:1rem/1.7 Georgia,serif;margin-top:8px}
#top[data-concept=metal] .cut-highlight{transform:translate(-.25px,-.3px);opacity:.5}
#top[data-concept=metal] .cut-shadow{transform:translate(.35px,.45px);opacity:.55}
#top[data-concept=metal] .cg-dark,#top[data-concept=binding] .cg-dark{display:none}
#top[data-concept=metal] .cg-light,#top[data-concept=binding] .cg-light{display:block}
/* Manuscript frontispiece: chapter device, red ruling, and a paired printer's seal. */
#top.hero-study[data-concept=vellum]{--hero-rule:#77513377;--hero-secondary:#57402d}
#top[data-concept=vellum] .manuscript-heading{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #8c51394d;color:#783f2b;padding:6px 0 17px;margin-bottom:22px;letter-spacing:.2em;font: .75rem/1.8 Georgia,serif}
#top[data-concept=vellum] .manuscript-heading>span:last-child{font-size:1.5rem}
#top[data-concept=vellum] .artifact-metadata{color:#783f2b}
#top[data-concept=vellum] .artifact-body{padding-top:24px;grid-template-columns:minmax(0,1fr) 29%;gap:5%;align-items:center}
#top[data-concept=vellum] .artifact-type{border-left:3px double #8e573b99;padding-left:28px}
#top[data-concept=vellum] .artifact-emblem{max-width:380px;padding-bottom:0}
#top[data-concept=vellum] .artifact-signature{width:63%;margin-top:24px;margin-left:8%}
#top[data-concept=vellum] .glyph-byline{background:#773d2a}
#top[data-concept=vellum] .artifact-verse{margin-top:8px;margin-left:8%}
/* D: the restrained foil and publisher's seal of a fine oxblood binding. */
#top.hero-study[data-concept=binding]{--hero-ink:#e3cfaa;--hero-secondary:#d1bba0;--hero-rule:#d8bd854d;--cut-face:#d9c49b;--cut-dark:#260d0b;--cut-light:#eed8ad;background:#3c1519;color-scheme:dark}
#top.hero-study[data-concept=binding]::before{background-image:url('assets/hero-study/material-binding.webp')}
#top.hero-study[data-concept=binding]::after{background:linear-gradient(90deg,#250e1233,transparent 50%,#250e1233)}
#top[data-concept=binding] .hero-artifact{border:1px solid #dac69a59;padding:30px 40px 34px;outline:1px solid #dac69a29;outline-offset:8px;margin:34px 9px 0}
#top[data-concept=binding] .artifact-body{display:grid;grid-template-columns:minmax(0,1fr) 26%;gap:7%;min-height:420px;padding-top:38px;padding-bottom:20px}
#top[data-concept=binding] .artifact-signature{width:57%;max-width:450px}
#top[data-concept=binding] .artifact-verse{font:italic 1rem/1.7 Georgia,serif}
#top[data-concept=binding] .hero-concept-switch{background:#300c164a}
#top[data-concept=binding] .hero-concept-switch button[aria-pressed=true]{color:#30161c}
#top[data-concept=binding] .hero-study-actions .button{background:var(--hero-ink);color:#30161c}
#top[data-concept=binding] .cut-highlight{transform:translate(.25px,.3px)}
#top[data-concept=binding] .cut-shadow{transform:translate(-.25px,-.3px)}
@media(min-width:761px){#top[data-concept=binding] .artifact-body{display:flex;flex-direction:column;gap:22px;padding-top:25px;padding-bottom:0}#top[data-concept=binding] .artifact-emblem{order:-1;width:180px;margin:0}#top[data-concept=binding] .artifact-emblem figcaption{display:none}#top[data-concept=binding] .artifact-type{width:100%;text-align:center}#top[data-concept=binding] .glyph-heritage,#top[data-concept=binding] .glyph-spire{display:none}#top[data-concept=binding] .glyph-line{display:block}#top[data-concept=binding] .artifact-signature{margin:24px auto 0;width:42%}#top[data-concept=binding] .artifact-verse{margin-top:10px}}
@media(max-width:760px){#top.hero-study[data-concept=stone] .artifact-emblem{width:220px}}
@media(max-width:1100px){.study-bar{align-items:start}.study-bar>.eyebrow{max-width:35%}.hero-concept-switch{justify-content:center}#top[data-concept=binding] .hero-artifact{padding:25px}#top[data-concept=metal] .artifact-body{min-height:350px}}
@media(max-width:760px){.study-bar>.eyebrow{max-width:none}.hero-concept-switch button{font-size:.625rem;letter-spacing:.025em;padding:8px 3px}.artifact-signature{width:88%;max-width:340px;margin-top:24px}.artifact-verse{margin-top:8px}.artifact-emblem{width:190px;margin-right:0}.artifact-emblem figcaption{font-size:.5625rem}.artifact-metadata{letter-spacing:.05em}#top[data-concept=stone] .artifact-type{padding:18px 8px;margin-left:-8px}#top[data-concept=stone] .hero-study-footer{padding:20px 14px}.glyph-form>.cut-highlight{transform:translate(.2px,.25px)}.glyph-form>.cut-shadow{transform:translate(-.2px,-.25px)}#top[data-concept=metal] .artifact-body{display:grid;grid-template-columns:1fr;gap:30px;min-height:0;padding-top:32px}#top[data-concept=metal] .artifact-emblem{width:190px;margin-left:auto}#top[data-concept=metal] .artifact-signature{width:88%;margin-top:24px}#top[data-concept=metal] .glyph-spire{width:74%;margin-left:2%}#top[data-concept=metal] .artifact-verse{font-size:.9375rem}#top[data-concept=vellum] .artifact-body{grid-template-columns:1fr;gap:26px}#top[data-concept=vellum] .artifact-type{padding-left:12px}#top[data-concept=vellum] .artifact-emblem{width:210px}#top[data-concept=vellum] .artifact-signature{width:86%;margin-left:4%}#top[data-concept=vellum] .artifact-verse{margin-left:4%}.manuscript-heading{letter-spacing:.1em!important}#top[data-concept=binding] .hero-artifact{padding:24px 14px;outline-offset:5px;margin:28px 5px 0}#top[data-concept=binding] .artifact-body{grid-template-columns:1fr;gap:28px;min-height:0;padding:28px 0 0}#top[data-concept=binding] .artifact-signature{width:95%}#top[data-concept=binding] .artifact-emblem{width:180px}#top[data-concept=binding] .artifact-metadata{font-size:.5rem;gap:10px}#top[data-concept=binding] .glyph-spire{width:76%}}