/* nexus-approach.shop — reader-first magazine layout, one accent, real theme toggle.
   Notes for future edits:
   - H3 is intentionally larger than H1. That is the reference's move. Keep it.
   - Addresses live INSIDE the article shell, never on a banner above <main>.
   - Zero external requests. Fonts are self-hosted (see /assets/font). */

@font-face{font-family:"Rubik";src:url("/assets/font/rubik-400.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Rubik";src:url("/assets/font/rubik-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"Rubik";src:url("/assets/font/rubik-700.woff2") format("woff2");font-weight:700;font-style:normal;font-display:swap}

:root{
  --page:#e9ecef;
  --card:#ffffff;
  --ink:#161b1d;
  --text:#495057;
  --dim:#6c757d;
  --chip:#e9ecef;
  --chip-ink:#495057;
  --soft:#f8f9fa;
  --line:#e9ecef;
  --line2:#dee2e6;
  --link:#004899;
  --link-h:#3b98ff;
  --shadow:0 4px 12px rgba(0,0,0,.05);
  --shell-r:12px;
  --chip-r:4px;
}
:root[data-theme="dark"]{
  --page:#0f1114;
  --card:#181b1f;
  --ink:#f2f4f7;
  --text:#c8ccd1;
  --dim:#8b929a;
  --chip:#22262c;
  --chip-ink:#c8ccd1;
  --soft:#1d2126;
  --line:#22262c;
  --line2:#2b3037;
  --link:#7cb7ff;
  --link-h:#a9d0ff;
  --shadow:0 4px 18px rgba(0,0,0,.5);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --page:#0f1114;
    --card:#181b1f;
    --ink:#f2f4f7;
    --text:#c8ccd1;
    --dim:#8b929a;
    --chip:#22262c;
    --chip-ink:#c8ccd1;
    --soft:#1d2126;
    --line:#22262c;
    --line2:#2b3037;
    --link:#7cb7ff;
    --link-h:#a9d0ff;
    --shadow:0 4px 18px rgba(0,0,0,.5);
  }
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{background:var(--page)}
body{
  background:var(--page);
  color:var(--text);
  font:400 16px/1.65 "Rubik",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  -webkit-text-size-adjust:100%;
}

a{color:var(--link);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}
a:hover{color:var(--link-h);text-decoration-thickness:2px}

/* --- header --- */
.head{
  background:var(--card);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:20;
}
.head .wrap{
  max-width:1140px;margin:0 auto;padding:14px 20px;
  display:flex;align-items:center;gap:16px;
}
.head .mark{
  display:flex;align-items:center;gap:10px;
  color:var(--ink);text-decoration:none;font-weight:700;
}
.head .mark img{width:28px;height:28px;border-radius:6px;display:block}
.head .mark span.name{font-size:17px;letter-spacing:.1px}
.head nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.head .icon{
  background:transparent;border:1px solid var(--line2);color:var(--ink);
  width:38px;height:38px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;padding:0;
}
.head .icon:hover{border-color:var(--link);color:var(--link)}
.head .icon svg{width:18px;height:18px}
.head details.menu{position:relative}
.head details.menu>summary{
  list-style:none;cursor:pointer;
  background:transparent;border:1px solid var(--line2);color:var(--ink);
  width:38px;height:38px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;
}
.head details.menu>summary::-webkit-details-marker{display:none}
.head details.menu>summary svg{width:18px;height:18px}
.head details.menu>summary:hover{border-color:var(--link);color:var(--link)}
.head details.menu[open]>.panel{
  position:absolute;right:0;top:46px;background:var(--card);border:1px solid var(--line2);border-radius:10px;
  min-width:260px;padding:8px;box-shadow:var(--shadow);
}
.head details.menu .panel a{
  display:block;padding:7px 10px;border-radius:6px;text-decoration:none;color:var(--ink);
}
.head details.menu .panel a:hover{background:var(--soft);color:var(--link)}
.head details.menu .panel .sub{color:var(--dim);font-size:12px;padding:8px 10px 4px;text-transform:uppercase;letter-spacing:.06em}

/* --- page frame --- */
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
.crumb{
  color:var(--dim);font-size:14px;padding:14px 0 0;
}
.crumb a{color:var(--dim);text-decoration:none}
.crumb a:hover{color:var(--link);text-decoration:underline}

/* --- article shell --- */
.card{
  background:var(--card);
  border-radius:var(--shell-r);
  box-shadow:var(--shadow);
  padding:44px 56px 48px;
  margin:22px 0 28px;
}
.card h1{
  color:var(--ink);
  font-weight:700;
  font-size:26px;
  line-height:1.25;
  margin:0 0 10px;
  letter-spacing:-.01em;
}
.card .lede{
  color:var(--ink);
  font-size:18px;
  line-height:1.55;
  margin:0 0 18px;
  font-weight:400;
}
.card p{margin:0 0 14px}
.card h3{
  /* Deliberately larger than H1. Section markers dominate the scan. */
  color:var(--ink);
  font-weight:700;
  font-size:30px;
  line-height:1.2;
  margin:34px 0 12px;
  letter-spacing:-.01em;
}
.card h2{color:var(--ink);font-weight:700;font-size:20px;margin:28px 0 10px}
.card ul,.card ol{margin:0 0 16px;padding-left:22px}
.card li{margin:6px 0}
.card figure{margin:22px 0;background:var(--soft);border-radius:10px;padding:16px 16px 12px}
.card figcaption{color:var(--dim);font-size:13.5px;margin-top:10px;text-align:center}
.card svg.plate{display:block;margin:0 auto;max-width:100%;height:auto}
.card blockquote{
  border-left:3px solid var(--line2);
  padding:2px 0 2px 16px;color:var(--ink);margin:16px 0;
  font-style:normal;
}

/* --- meta strip inside the card --- */
.meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin:0 0 18px;
  color:var(--dim);font-size:14px;
}
.meta .chip{
  background:var(--chip);color:var(--chip-ink);
  border-radius:var(--chip-r);
  padding:4px 10px;font-size:13px;font-weight:500;
  text-decoration:none;
}
.meta .chip:hover{color:var(--link)}
.meta .dot{width:3px;height:3px;background:var(--dim);border-radius:50%}
.meta .why{color:var(--dim);text-decoration:underline}

/* --- addresses block, inside the article, near the top --- */
.addr{
  background:var(--soft);
  border:1px solid var(--line);
  border-radius:10px;
  padding:16px 18px;
  margin:0 0 26px;
}
.addr h4{
  margin:0 0 4px;color:var(--ink);font-size:14px;font-weight:500;
  text-transform:uppercase;letter-spacing:.06em;
}
.addr p.note{color:var(--dim);font-size:13px;margin:0 0 12px}
.addr .row{
  display:flex;align-items:center;gap:10px;
  padding:6px 0;
}
.addr .row+.row{border-top:1px dashed var(--line2)}
.addr code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:12.5px;color:var(--ink);
  overflow-wrap:anywhere;word-break:break-all;flex:1;
}
.addr .btn{
  background:var(--card);border:1px solid var(--line2);color:var(--ink);
  border-radius:6px;padding:6px 10px;font:500 12px/1 "Rubik",sans-serif;cursor:pointer;
}
.addr .btn:hover{border-color:var(--link);color:var(--link)}
.addr .btn.done{border-color:var(--link);color:var(--link)}

/* --- opposite / not-this blocks --- */
.opposite{
  margin:32px 0 20px;padding:16px 18px;
  border:1px solid var(--line2);border-radius:10px;background:var(--soft);
}
.opposite b{display:block;color:var(--ink);font-size:13px;text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px}
.opposite a{font-weight:500}
.notthis{
  margin:14px 0 4px;padding:12px 16px;
  border-left:3px solid var(--line2);
  color:var(--dim);font-size:15px;
}
.notthis b{color:var(--ink);font-weight:500}

/* --- chips at end --- */
.chips{
  display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 0;padding:0;list-style:none;
}
.chips li{display:inline}
.chips a{
  background:var(--chip);color:var(--chip-ink);border-radius:var(--chip-r);
  padding:5px 12px;font-size:13px;text-decoration:none;
}
.chips a:hover{color:var(--link)}

/* --- read another row --- */
.readmore{margin:28px 0 0}
.readmore h4{color:var(--ink);font-size:13px;text-transform:uppercase;letter-spacing:.06em;margin:0 0 10px}
.readmore .row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.readmore .row a{
  display:block;padding:14px 16px;background:var(--soft);border:1px solid var(--line);
  border-radius:10px;text-decoration:none;color:var(--ink);
}
.readmore .row a b{display:block;font-weight:500;line-height:1.35;margin-bottom:4px}
.readmore .row a span{color:var(--dim);font-size:13.5px}
.readmore .row a:hover{border-color:var(--link)}

/* --- prev/next --- */
.pn{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:28px 0 0}
.pn a{
  display:block;padding:14px 16px;background:var(--soft);border:1px solid var(--line);
  border-radius:10px;text-decoration:none;color:var(--ink);
}
.pn a em{display:block;font-style:normal;font-size:12px;color:var(--dim);text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px}
.pn a b{display:block;font-weight:500;line-height:1.35}
.pn a:hover{border-color:var(--link)}
.pn a.n{text-align:right}

/* --- group hubs --- */
.hub-list{list-style:none;margin:22px 0 0;padding:0}
.hub-list li{
  padding:16px 0;border-bottom:1px solid var(--line);
}
.hub-list li:first-child{padding-top:6px}
.hub-list li:last-child{border-bottom:0}
.hub-list a{color:var(--ink);text-decoration:none;font-weight:500;font-size:18px;line-height:1.4}
.hub-list a:hover{color:var(--link);text-decoration:underline}
.hub-list p{margin:4px 0 0;color:var(--dim);font-size:14.5px}

/* --- home groups grid --- */
.groups{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:22px 0 0;
}
.groups a{
  display:block;padding:16px 18px;background:var(--soft);border:1px solid var(--line);
  border-radius:10px;text-decoration:none;color:var(--ink);
}
.groups a b{display:block;font-weight:500;line-height:1.35;margin-bottom:4px;color:var(--ink)}
.groups a span{color:var(--dim);font-size:14px}
.groups a:hover{border-color:var(--link)}

/* --- full site index (outside <main>) --- */
.everything{
  max-width:1140px;margin:0 auto 40px;padding:0 20px;
}
.everything .box{
  background:var(--card);border-radius:var(--shell-r);box-shadow:var(--shadow);
  padding:26px 32px;
}
.everything h5{
  margin:0 0 10px;color:var(--ink);font-size:12px;text-transform:uppercase;letter-spacing:.08em;font-weight:700;
}
.everything .cols{columns:3;column-gap:24px}
@media (max-width:820px){.everything .cols{columns:2}}
@media (max-width:520px){.everything .cols{columns:1}}
.everything .cols a{display:block;padding:3px 0;font-size:14.5px}

/* --- footer --- */
.foot{
  margin-top:24px;padding:26px 0 40px;
  color:var(--dim);font-size:13.5px;
}
.foot .wrap{max-width:1140px}
.foot .fine{max-width:900px;line-height:1.7}
.foot a{color:var(--dim)}

/* --- small screens --- */
@media (max-width:820px){
  .card{padding:26px 22px 30px}
  .card h1{font-size:22px}
  .card h3{font-size:24px;margin:26px 0 10px}
  .readmore .row{grid-template-columns:1fr}
  .pn{grid-template-columns:1fr}
  .head .wrap{gap:8px}
  .head .mark span.name{font-size:15px}
  .groups{grid-template-columns:1fr}
}
@media (max-width:520px){
  .head .icon,.head details.menu>summary{width:34px;height:34px}
}

/* --- inline SVG plates --- */
.plate rect,.plate path,.plate line,.plate circle{fill:none}
.plate .fillA{fill:var(--chip)}
.plate .fillB{fill:var(--soft)}
.plate .fillC{fill:var(--link)}
.plate .strokeA{stroke:var(--line2);stroke-width:1.4}
.plate .strokeB{stroke:var(--link);stroke-width:1.6}
.plate .strokeC{stroke:var(--ink);stroke-width:1.2}
.plate .txt{font:500 12px "Rubik",sans-serif;fill:var(--ink)}
.plate .dim{font:400 11px "Rubik",sans-serif;fill:var(--dim)}