:root{--paper:#f5f2e9;--sepia:#a08a63;--index:#6e5636;--ink:#1c2118;--water:#3e7fa8;--red:#c0392b;--forest:#dce5d4;--slope:#e8e3cf;--peak:#f2e4ce;--ivi-ring:15px;--ivi-index:75px;--max:1440px;--reading:900px}
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button{border:0;background:none;font:12px monospace;color:var(--water)}.ivi-article-shell{max-width:var(--max);margin:auto;padding:70px 24px 120px;display:grid;grid-template-columns:170px minmax(0,var(--reading)) 230px;gap:34px;justify-content:center}.ivi-toc,.ivi-marginalia{position:sticky;top:120px;align-self:start;font:11px monospace}.ivi-toc-links{display:grid;gap:10px;margin-top:14px}.ivi-toc-links a{position:relative;padding-left:14px;text-decoration:none}.ivi-toc-links a:before{content:"";position:absolute;left:0;top:50%;width:7px;height:1px;background:var(--red)}.ivi-breadcrumb{font:11px monospace;margin-bottom:18px}.ivi-article-hero{position:relative;display:grid;grid-template-columns:45% 55%;align-items:center;min-height:520px;padding:40px;overflow:hidden}.ivi-article-hero header,.ivi-article-image{position:relative;z-index:2}.ivi-article-hero header{background:var(--peak);padding:24px}.ivi-article h1{font-size:48px;line-height:1.05}.ivi-keypoints{padding:22px;margin:40px 0}.ivi-keypoints strong{font:12px monospace}.entry-content{max-width:900px;position:relative;font-size:19px;line-height:1.75}.entry-content:before{content:"";position:absolute;left:-28px;top:0;bottom:0;width:1px;background:var(--sepia)}.entry-content p{margin:0 0 1.4em}.entry-content>p:first-of-type:before{content:"01 · START";display:block;font:11px monospace;color:var(--index);margin-bottom:8px}.entry-content h2{font-size:30px;margin:2.1em 0 .7em}.entry-content a{color:var(--water);text-decoration-thickness:1px}.entry-content .alignwide,.entry-content blockquote,.entry-content table{width:calc(100% + 240px);max-width:1140px;margin-left:-120px}.entry-content .alignfull{width:min(1440px,calc(100vw - 48px));margin-left:50%;transform:translateX(-50%)}.entry-content blockquote{position:relative;background:var(--slope);padding:28px;font-size:28px}.entry-content blockquote:before{content:"";position:absolute;inset:0;background-image:repeating-radial-gradient(circle at 80% 50%,transparent 0 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h1{font-size:48px}.ivi-archive-grid{max-width:1180px;margin:auto;display:grid;grid-template-columns:repeat(3,1fr);gap:26px}.ivi-archive-story{position:relative;padding:22px;overflow:hidden}.ivi-archive-story>*{position:relative;z-index:2}.ivi-archive-story h2{font-size:25px}.ivi-page{max-width:920px;margin:auto;padding:70px 24px 100px}.ivi-page h1{font-size:46px}.ivi-404{min-height:70vh;display:grid;place-items:center}.ivi-404 section{width:min(760px,90vw);position:relative}.ivi-empty-contour{height:300px;background-image:repeating-radial-gradient(circle at 50% 50%,transparent 0 24px,var(--sepia) 24px 25px);opacity:.25}.ivi-404 h1{font-size:42px}.ivi-404 nav{display:flex;gap:20px;flex-wrap:wrap}.ivi-404 nav a{font:12px monospace}.ivi-hp{position:absolute!important;left:-9999px!important}*:focus-visible{outline:3px solid var(--red);outline-offset:2px;box-shadow:0 0 0 2px var(--paper)}
@media(max-width:1199px){.ivi-toc,.ivi-marginalia{display:none}.ivi-article-shell{display:block;width:90%;padding-inline:0}.entry-content .alignwide,.entry-content blockquote,.entry-content table,.entry-content .alignfull{width:100%;max-width:100%;margin-left:0;transform:none}.ivi-archive-grid{grid-template-columns:1fr 1fr}.ivi-related>div{grid-template-columns:1fr}}
@media(max-width:767px){:root{--ivi-ring:20px;--ivi-index:100px}.ivi-gridticks{display:none}.ivi-header-inner{height:64px;grid-template-columns:1fr auto;padding:0 16px}.ivi-brand img{width:210px}.ivi-nav{display:none}.ivi-trust{overflow-x:auto;white-space:nowrap}.ivi-summit{grid-template-columns:1fr;padding:34px 18px}.ivi-summit-copy{padding:22px}.ivi-summit-copy h1{font-size:36px}.ivi-ridge{padding:50px 18px}.ivi-ridge-grid{grid-template-columns:1fr}.ivi-contours-lead{opacity:.28}.ivi-contours-feature{opacity:.20}.ivi-contours-standard{opacity:.12}.ivi-data{padding:50px 18px}.ivi-data-grid{grid-template-columns:1fr 1fr}.ivi-data-grid strong{font-size:46px}.ivi-transect{padding:50px 18px}.ivi-profile{display:none}.ivi-transect-stories{display:block;margin:0}.ivi-transect-stories article{padding:18px 0;border-bottom:1px solid var(--sepia)}.ivi-lowland{padding:50px 18px}.ivi-lowland-list article{grid-template-columns:1fr}.ivi-footer{padding:50px 18px}.ivi-footer-inner{grid-template-columns:1fr}.ivi-scale{grid-column:auto}.ivi-search-form{grid-template-columns:1fr}.ivi-article-hero{grid-template-columns:1fr;padding:22px}.ivi-article h1{font-size:36px}.entry-content{font-size:17px}.entry-content:before{display:none}.ivi-archive{padding:50px 18px}.ivi-archive-grid{grid-template-columns:1fr}.ivi-page{padding-inline:18px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}


/* =========================================================
   v2.0.0 — prompt-accurate Topographic Contour rebuild
   ========================================================= */
.ivi-search-kicker,.ivi-section-name{display:block;font:11px monospace;letter-spacing:.08em;text-transform:uppercase;color:var(--index);margin-bottom:8px}
.ivi-main-v2 .ivi-summit{min-height:690px}
.ivi-main-v2 .ivi-summit-copy{max-width:560px}
.ivi-main-v2 .ivi-summit-image{min-height:460px}
.ivi-main-v2 .ivi-summit-image img{height:460px}
.ivi-ridge-story{background:transparent}
.ivi-ridge-copy{position:relative}
.ivi-ridge-copy:before{content:"";position:absolute;inset:-8px;background:var(--slope);z-index:-1}
.ivi-ridge-image{background:transparent}
.ivi-ridge-image img{aspect-ratio:3/2}
.ivi-data-grid{position:relative}
.ivi-data-grid:before{content:"";position:absolute;left:0;right:0;top:58%;height:1px;background:var(--sepia);opacity:.5}
.ivi-data-grid article{background:var(--forest);z-index:1}
.ivi-transect-stories article{position:relative;background:var(--paper)}
.ivi-transect-meta{display:block;font:10px monospace;color:var(--index);margin-top:6px}
.ivi-gridref-static{position:static!important;align-self:start;background:transparent!important;padding:0!important}
.ivi-lowland-list article>div{position:relative}
.ivi-lowland-list article>div:before{content:"";position:absolute;left:-12px;top:4px;bottom:4px;width:1px;background:var(--sepia)}
.ivi-search-page{max-width:1100px;margin:auto;padding:80px 24px 120px}
.ivi-search-page>header{margin-bottom:40px}.ivi-search-page h1{font-size:42px;margin:8px 0}
.ivi-search-page>header>span{font:11px monospace;color:var(--index);letter-spacing:.08em}
.ivi-search-rows{display:grid;gap:0}
.ivi-search-rows article{display:grid;grid-template-columns:160px 1fr;gap:24px;padding:22px 0;border-bottom:1px solid var(--sepia)}
.ivi-search-rows h2{font-size:22px;margin:0 0 6px}.ivi-search-rows h2 a{text-decoration:none}
.ivi-author-head{max-width:1100px;margin:0 auto 50px;display:grid;grid-template-columns:180px 1fr;gap:32px;align-items:center}
.ivi-author-photo-large img{display:block;width:180px;height:180px;object-fit:cover}
.ivi-author-head h1{font-size:44px;margin:10px 0}
.ivi-article-hero header{position:relative}
.ivi-keypoints{background:var(--slope)!important}
.entry-content{background:var(--paper)}
.entry-content>p:first-of-type:before{content:"READ · " attr(data-read);display:none}
.entry-content blockquote{overflow:hidden}
.entry-content blockquote>*{position:relative;z-index:1}
.ivi-ad-slot{background:var(--paper)!important}
.ivi-ad-slot:before,.ivi-ad-slot:after{display:none!important}
.ivi-related article{background:var(--paper)}
.ivi-related article .ivi-contours{opacity:.18}
.ivi-empty-contour{background-image:repeating-radial-gradient(circle at 48% 50%,transparent 0 24px,var(--sepia) 24px 25px),repeating-radial-gradient(circle at 48% 50%,transparent 0 119px,var(--index) 119px 121px)}
.ivi-search-overlay[hidden]{display:none!important}
body.ivi-search-opened{overflow:hidden}
@media(max-width:767px){
  .ivi-main-v2 .ivi-summit-image{min-height:0}
  .ivi-main-v2 .ivi-summit-image img{height:auto}
  .ivi-search-rows article{grid-template-columns:1fr}
  .ivi-author-head{grid-template-columns:100px 1fr}
  .ivi-author-photo-large img{width:100px;height:100px}
  .ivi-author-head h1{font-size:34px}
}


/* v2.0.1 — fixed single-color / single-logo mode */
.ivi-brand img,
.ivi-footer-brand img{
  display:block!important;
  visibility:visible!important;
  opacity:1!important;
  filter:none!important;
  mix-blend-mode:normal!important;
}