/* ============================================================
   IGS Global · Insights (newsletter archive) chrome
   Header, footer, and archive-list styling. The newsletter
   article body uses its own inline styles (ported 1:1 from the
   approved design), so this file only dresses the page around it.
   ============================================================ */

:root{
  --bg:#08080a;
  --panel:#0c0c0e;
  --red:#fa0000;
  --red-dark:#d10000;
  --ink:#f4f3ef;
  --serif:'Newsreader',Georgia,serif;
  --mono:'JetBrains Mono',monospace;
  --sans:'Helvetica Neue',Helvetica,Arial,sans-serif;
  --maxw:1320px;
  --line:rgba(255,255,255,0.09);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);}
::selection{background:var(--red);color:#fff;}
svg{display:block;}
a{color:inherit;}

/* ---------- Header ---------- */
.ins-nav{position:sticky;top:0;z-index:50;background:rgba(8,8,10,0.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);}
.ins-nav__inner{max-width:var(--maxw);margin:0 auto;padding:0 40px;height:70px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.ins-nav__brand{display:flex;align-items:center;gap:14px;text-decoration:none;}
.ins-nav__logo{height:28px;width:auto;}
.ins-nav__tag{font-family:var(--mono);font-size:10px;letter-spacing:0.24em;color:#6a6a6e;border-left:1px solid rgba(255,255,255,0.14);padding-left:14px;}
.ins-nav__right{display:flex;align-items:center;gap:22px;}
.ins-nav__link{font-family:var(--mono);font-size:11px;letter-spacing:0.14em;text-transform:uppercase;color:#b4b4b7;text-decoration:none;transition:color .2s;}
.ins-nav__link:hover{color:#fff;}
.ins-nav__cta{font-family:var(--mono);font-size:11px;letter-spacing:0.14em;text-transform:uppercase;color:#fff;text-decoration:none;border:1px solid rgba(255,255,255,0.22);padding:10px 18px;border-radius:2px;transition:background .2s,border-color .2s;}
.ins-nav__cta:hover{background:var(--red);border-color:var(--red);}

/* ---------- Page wrap (grid bg) ---------- */
.ins-page{min-height:100vh;padding:48px 20px;background-image:linear-gradient(rgba(255,255,255,0.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.022) 1px,transparent 1px);background-size:54px 54px;}

/* ---------- Article back-link ---------- */
.ins-back{max-width:680px;margin:0 auto 18px;display:flex;justify-content:space-between;align-items:center;gap:16px;font-family:var(--mono);font-size:11px;letter-spacing:0.14em;text-transform:uppercase;}
.ins-back a{color:#8a8a8e;text-decoration:none;transition:color .2s;}
.ins-back a:hover{color:#fff;}

/* ---------- Archive index ---------- */
.arc{max-width:880px;margin:0 auto;padding:64px 40px 100px;}
.arc__eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:0.2em;color:var(--red);text-transform:uppercase;}
.arc__title{font-family:var(--serif);font-weight:400;font-size:clamp(34px,5vw,56px);line-height:1.05;letter-spacing:-0.015em;color:#f5f5f4;margin:20px 0 0;}
.arc__lead{font-family:var(--serif);font-size:18px;line-height:1.7;color:#9a9a9d;margin:22px 0 0;max-width:60ch;}
.arc__list{margin-top:48px;display:flex;flex-direction:column;gap:18px;}
.arc__item{display:block;text-decoration:none;border:1px solid rgba(255,255,255,0.12);background:var(--panel);padding:32px 34px;transition:border-color .2s,background .2s;}
.arc__item:hover{border-color:rgba(250,0,0,0.5);background:#101013;}
.arc__item--soon{opacity:0.55;pointer-events:none;}
.arc__meta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;font-family:var(--mono);font-size:11px;letter-spacing:0.16em;color:#7a7a7e;text-transform:uppercase;}
.arc__latest{color:var(--red);}
.arc__h{font-family:var(--serif);font-weight:400;font-size:clamp(22px,2.6vw,30px);line-height:1.2;color:#f0f0ee;margin:16px 0 12px;}
.arc__sum{font-size:15px;line-height:1.7;color:#9a9a9d;margin:0;max-width:70ch;}
.arc__go{display:inline-block;margin-top:20px;font-family:var(--mono);font-size:12px;letter-spacing:0.12em;text-transform:uppercase;color:#fff;}

/* ---------- Footer ---------- */
.ins-foot{border-top:1px solid var(--line);padding:48px 40px;}
.ins-foot__inner{max-width:var(--maxw);margin:0 auto;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;}
.ins-foot__links{display:flex;flex-wrap:wrap;gap:24px;font-family:var(--mono);font-size:12px;letter-spacing:0.12em;text-transform:uppercase;}
.ins-foot__links a{color:#b4b4b7;text-decoration:none;transition:color .2s;}
.ins-foot__links a:hover{color:#fff;}
.ins-foot__note{font-family:var(--mono);font-size:11px;letter-spacing:0.1em;color:#5e5e62;}

@media (max-width:680px){
  .ins-nav__inner{padding:0 20px;}
  .ins-nav__tag{display:none;}
  .ins-page{padding:28px 14px;}
  .arc{padding:48px 20px 72px;}
  .arc__item{padding:26px 22px;}
}