/* ============================================================================
   QUANTIS CAPITAL — SHARED PAGE SHELL
   Nav, footer, section rhythm and the light (ivory) theme, factored out so the
   secondary pages don't each re-declare them.

   index.html predates this file and still carries its own copy inline; it is
   deliberately left alone. Everything added after the 2026-09 restructure
   (tools, about, how-i-write, disclaimer, privacy) links brand.css then this.
   ============================================================================ */

/* ── light theme: recolour the brand tokens, keep the token names ────────── */
:root{
  --qc-ink:#F7F3ED;
  --qc-ink-2:#EEE7DC;
  --qc-navy:#FFFDF9;
  --qc-navy-2:#F2EBE1;
  --qc-cream:#1E1611;
  --qc-muted:rgba(30,22,17,.80);
  --qc-hairline:rgba(30,22,17,.12);
  --qc-gold:#8A5A2B;
  --qc-gold-light:#A67242;
  --qc-gold-gradient:linear-gradient(92deg,#8A5A2B,#A67242);
  --qc-gold-glow:rgba(138,90,43,.16);
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--qc-ink);color:var(--qc-cream);
  font-family:var(--qc-font-body);
  -webkit-font-smoothing:antialiased;line-height:1.65;
}
a{color:inherit;text-decoration:none;}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px;}
.narrow{max-width:760px;}
.gold{color:var(--qc-gold-light);}

.qc-btn-gold{color:#1E1611;}
.qc-btn-gold:hover{box-shadow:0 12px 30px -12px rgba(138,90,43,.45);}

/* ── nav ─────────────────────────────────────────────────────────────────── */
nav{
  position:sticky;top:0;z-index:100;
  background:rgba(247,243,237,.9);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--qc-hairline);
}
nav .row{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 28px;max-width:1180px;margin:0 auto;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand .mono{
  width:36px;height:36px;border:2px solid var(--qc-gold);border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-weight:600;color:var(--qc-gold);font-size:18px;
}
.brand .name{font-size:20px;font-weight:600;line-height:1.15;display:flex;flex-direction:column;}
.brand .name small{
  font-size:9px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--qc-gold);opacity:.9;line-height:1;margin-top:3px;font-weight:600;
}
.navlinks{display:flex;align-items:center;gap:26px;}
.navlinks a{font-size:14.5px;color:var(--qc-muted);font-weight:500;transition:color .2s;}
.navlinks a:hover,.navlinks a.on{color:var(--qc-gold);}
.navlinks .qc-btn{padding:10px 20px;font-size:13.5px;}
.burger{display:none;background:none;border:none;color:var(--qc-cream);font-size:24px;cursor:pointer;}

/* ── page head + sections ────────────────────────────────────────────────── */
.pagehead{padding:74px 0 20px;}
.pagehead h1{font-size:clamp(36px,5vw,58px);line-height:1.06;margin:18px 0 18px;}
.pagehead p{font-size:19px;color:var(--qc-muted);max-width:660px;font-weight:450;line-height:1.62;}
.section{padding:56px 0;}
.section h2{font-size:clamp(26px,3.2vw,38px);line-height:1.14;margin:0 0 16px;}
.section h3{font-size:20px;margin:30px 0 10px;}
.section p{color:var(--qc-muted);margin-bottom:17px;font-size:16.5px;font-weight:450;}
.section ul{color:var(--qc-muted);margin:0 0 18px 20px;font-size:16.5px;font-weight:450;}
.section li{margin-bottom:10px;line-height:1.6;}
.rule{height:1px;background:var(--qc-hairline);border:0;margin:0;}

.panelbox{
  background:#fff;border:1px solid rgba(30,22,17,.10);border-radius:var(--qc-radius-lg);
  padding:32px 30px;box-shadow:0 18px 40px -30px rgba(30,22,17,.35);
}

/* ── footer ──────────────────────────────────────────────────────────────── */
footer{background:var(--qc-ink-2);border-top:1px solid var(--qc-hairline);padding:52px 0 28px;margin-top:40px;}
.foot-cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;}
.foot-cols h5{font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--qc-gold);font-weight:600;margin-bottom:14px;}
.foot-cols a{display:block;font-size:14.5px;color:var(--qc-muted);margin-bottom:10px;font-weight:450;}
.foot-cols a:hover{color:var(--qc-gold);}
.foot-disc{font-size:13.5px;color:var(--qc-muted);line-height:1.65;opacity:1;margin-top:34px;padding-top:20px;border-top:1px solid var(--qc-hairline);}
.foot-bottom{
  margin-top:18px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:12.5px;color:var(--qc-muted);
}

@media(max-width:900px){
  .foot-cols{grid-template-columns:1fr;gap:26px;}
  .burger{display:block;}
  .navlinks{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;
    background:#F7F3ED;border-bottom:1px solid var(--qc-hairline);
    padding:8px 22px 20px;opacity:0;transform:translateY(-10px);pointer-events:none;
    transition:opacity .25s,transform .25s;
  }
  nav.menu-open .navlinks{opacity:1;transform:none;pointer-events:auto;}
  .navlinks a{font-size:16px;color:var(--qc-cream);padding:14px 2px;border-bottom:1px solid var(--qc-hairline);}
  .navlinks .qc-btn{width:100%;text-align:center;border-bottom:none;padding:14px 22px;margin-top:12px;}
}
@media(max-width:560px){
  .wrap{padding:0 18px;}
  nav .row{padding:14px 18px;}
  .pagehead{padding:48px 0 12px;}
  .section{padding:40px 0;}
  .panelbox{padding:24px 20px;}
}