/* ==========================================================================
   Barrier Consulting Group  |  site.css  |  the whole design system
   --------------------------------------------------------------------------
   ONE font family (--font, the existing system stack).
   EXACTLY THREE font sizes site-wide: --fs-l, --fs-m, --fs-s.
   All further hierarchy = weight, letter-spacing, uppercase eyebrows, color.

   WCAG CONTRAST AUDIT (computed, sRGB relative luminance, WCAG 2.1 formula)
   AA needs 4.5:1 for normal text and 3:1 for large text and UI edges.

     foreground            background              ratio     verdict
     -------------------   ---------------------   -------   -----------------
     #ffffff  white        #0d1b2a  --navy         17.39:1   AA + AAA
     #b7c3d2  on-navy-soft #0d1b2a  --navy          9.73:1   AA + AAA
     #c8a45c  --accent     #0d1b2a  --navy          7.39:1   AA + AAA
     #ffffff  white        #12263d  --navy-2       15.32:1   AA + AAA
     #b7c3d2  on-navy-soft #12263d  --navy-2        8.57:1   AA + AAA
     #c8a45c  --accent     #12263d  --navy-2        6.51:1   AA + AAA
     #0d1b2a  --ink        #ffffff  --paper        17.39:1   AA + AAA
     #4a5a6d  --ink-soft   #ffffff  --paper         7.06:1   AA + AAA
     #8a6d2f  --accent-ink #ffffff  --paper         4.87:1   AA
     #0d1b2a  --ink        #f5f7fa  --paper-2      16.21:1   AA + AAA
     #4a5a6d  --ink-soft   #f5f7fa  --paper-2       6.58:1   AA + AAA
     #8a6d2f  --accent-ink #f5f7fa  --paper-2       4.54:1   AA

   RULED OUT, never used as text anywhere in this system:
     #c8a45c  --accent     #ffffff  --paper         2.35:1   FAIL
     #8a6d2f  --accent-ink #0d1b2a  --navy          3.57:1   FAIL for body text
   Rule: gold #c8a45c is text on navy only. On light backgrounds the gold-ish
   text token is --accent-ink #8a6d2f. Gold on light is allowed for rules,
   borders and 3px bars, which are decoration and not text.
   ========================================================================== */

:root{
  --navy:#0d1b2a;
  --navy-2:#12263d;
  --line:rgba(255,255,255,.14);
  --line-d:#dfe3e9;
  --ink:#0d1b2a;
  --ink-soft:#4a5a6d;
  --paper:#ffffff;
  --paper-2:#f5f7fa;
  --accent:#c8a45c;
  --accent-ink:#8a6d2f;
  --on-navy-soft:#b7c3d2;
  /* exactly three font-size tokens site-wide */
  --fs-l:clamp(1.95rem,4.6vw,3.1rem);
  --fs-m:clamp(1rem,1.35vw,1.09rem);
  --fs-s:.78rem;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --wrap:1120px;
}

/* ---------- reset ---------- */
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  font-size:var(--fs-m);
  line-height:1.65;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
svg{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
a{color:inherit}

/* ---------- shared layout ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px}
.band{padding:78px 0 82px}
.band--tight{padding:56px 0 60px}
.band--navy{background:var(--navy);color:#fff}
.band--navy-2{background:var(--navy-2);color:#fff;border-top:1px solid var(--line)}
.band--paper{background:var(--paper);color:var(--ink)}
.band--paper-2{background:var(--paper-2);color:var(--ink);border-top:1px solid var(--line-d);border-bottom:1px solid var(--line-d)}

.eyebrow{
  font-size:var(--fs-s);
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--accent-ink);
  margin-bottom:18px;
}
.band--navy .eyebrow,.band--navy-2 .eyebrow{color:var(--accent)}
.eyebrow--quiet{color:var(--ink-soft)}
.band--navy .eyebrow--quiet,.band--navy-2 .eyebrow--quiet{color:var(--on-navy-soft)}

.rule{width:56px;height:3px;background:var(--accent);border:0;margin:26px 0 22px}

h1,h2,h3{font-weight:700;letter-spacing:-.005em;line-height:1.3}
.sec-title{font-size:var(--fs-m);font-weight:700;letter-spacing:-.01em;line-height:1.35;max-width:36ch;margin-bottom:14px}
.lede{max-width:62ch;color:var(--ink-soft)}
.band--navy .lede,.band--navy-2 .lede{color:var(--on-navy-soft)}
.stack>*+*{margin-top:16px}
/* prose measure: cap article and service body copy at a readable line length */
.stack>p,.stack li,.notes li,.card p,.card li{max-width:68ch}
.mt{margin-top:32px}

/* ---------- links ---------- */
.lnk{
  color:var(--accent-ink);
  font-weight:700;
  text-decoration:none;
  border-bottom:2px solid var(--accent);
  padding-bottom:2px;
  overflow-wrap:anywhere;
}
.lnk:hover{color:var(--ink)}
.band--navy .lnk,.band--navy-2 .lnk{color:#fff}
.band--navy .lnk:hover,.band--navy-2 .lnk:hover{color:var(--accent)}

:focus-visible{outline:2px solid var(--accent-ink);outline-offset:3px}
.band--navy :focus-visible,.band--navy-2 :focus-visible,.masthead :focus-visible,.foot :focus-visible{outline-color:var(--accent)}

.skip{position:absolute;left:-9999px;top:0}
.skip:focus{left:8px;top:8px;z-index:60;background:var(--accent);color:var(--navy);padding:10px 14px;font-weight:700}

/* ---------- sticky header ---------- */
.masthead{
  position:sticky;
  top:0;
  z-index:40;
  background:var(--navy);
  border-bottom:1px solid var(--line);
}
.mast-in{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;padding-top:18px;padding-bottom:18px;flex-wrap:wrap;
}
.brand{
  display:inline-flex;align-items:center;gap:11px;
  font-size:var(--fs-m);font-weight:700;letter-spacing:.13em;
  text-transform:uppercase;color:#fff;text-decoration:none;line-height:1.2;
}
.brand::before{content:"";width:3px;height:1.15em;background:var(--accent);flex:0 0 auto}
.brand span{color:var(--accent)}
.brand:hover span{color:#fff}

.nav{display:flex;align-items:center;gap:26px;flex-wrap:wrap}
.nav a{
  font-size:var(--fs-s);font-weight:700;letter-spacing:.11em;text-transform:uppercase;
  color:var(--on-navy-soft);text-decoration:none;padding:6px 0;
  border-bottom:2px solid transparent;
}
.nav a:hover{color:#fff}
.nav a[aria-current="page"]{color:#fff;border-bottom-color:var(--accent)}

/* mobile nav: pure CSS checkbox toggle, no JavaScript anywhere on the site */
.nav-toggle{position:absolute;width:1px;height:1px;opacity:0;margin:0;padding:0}
.nav-btn{display:none}

/* ---------- hero ---------- */
.hero{padding:86px 0 92px}
.hero--page{padding:64px 0 70px}
.hero h1{font-size:var(--fs-l);font-weight:600;line-height:1.14;letter-spacing:-.022em;max-width:20ch}
.hero .lede{max-width:58ch}

/* ---------- pillar grid ---------- */
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.pillars--3{grid-template-columns:repeat(3,1fr)}
.pillar{border-top:3px solid var(--accent);padding-top:18px}
.pillar h2,.pillar h3{font-size:var(--fs-m);font-weight:700;margin-bottom:9px;letter-spacing:-.01em}
.pillar p{color:var(--ink-soft)}
.band--navy .pillar p,.band--navy-2 .pillar p{color:var(--on-navy-soft)}

/* ---------- stat and vignette cards ---------- */
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:36px 44px}
.stat{border-left:3px solid var(--accent);padding-left:22px}
.stat b{display:block;font-size:var(--fs-l);font-weight:600;line-height:1.02;letter-spacing:-.025em}
.stat .stat-label{
  display:block;font-size:var(--fs-s);font-weight:700;letter-spacing:.11em;
  text-transform:uppercase;color:var(--accent);margin:10px 0 12px;line-height:1.5;
}
.stat p{color:var(--on-navy-soft);max-width:48ch}
.band--paper .stat .stat-label,.band--paper-2 .stat .stat-label{color:var(--accent-ink)}
.band--paper .stat p,.band--paper-2 .stat p{color:var(--ink-soft)}

/* ---------- service cards ---------- */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line-d);border:1px solid var(--line-d)}
.card{background:var(--paper);padding:30px 28px;display:block;text-decoration:none}
.card.wide{grid-column:1/-1}
.card h2,.card h3{font-size:var(--fs-m);font-weight:700;letter-spacing:-.01em;margin-bottom:9px}
.card p{color:var(--ink-soft)}
a.card:hover{background:var(--paper-2)}
a.card h2,a.card h3{color:var(--accent-ink)}
a.card:hover h2,a.card:hover h3{color:var(--ink)}
.card-more{
  display:inline-block;margin-top:16px;font-size:var(--fs-s);font-weight:700;
  letter-spacing:.11em;text-transform:uppercase;color:var(--accent-ink);
}

/* ---------- engagement model cards, two columns ---------- */
.models{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.model{background:var(--paper);border:1px solid var(--line-d);border-top:3px solid var(--accent);padding:30px 28px}
.model.wide{grid-column:1/-1}
.model h2{font-size:var(--fs-m);font-weight:700;letter-spacing:-.01em;margin-bottom:18px}
.model dl{margin:0}
.model dt{
  font-size:var(--fs-s);font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:var(--accent-ink);margin-top:18px;
}
.model dt:first-of-type{margin-top:0}
.model dd{margin:5px 0 0;color:var(--ink-soft)}

/* ---------- insights list rows ---------- */
.rows{border-top:1px solid var(--line-d)}
.row{
  display:grid;grid-template-columns:210px 1fr;gap:8px 34px;
  padding:26px 0;border-bottom:1px solid var(--line-d);text-decoration:none;color:inherit;
}
.row:hover{background:var(--paper-2)}
.row-meta{
  font-size:var(--fs-s);font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-soft);padding-top:4px;
}
.row-meta .cat{display:block;color:var(--accent-ink);margin-bottom:5px}
.row-title{font-size:var(--fs-m);font-weight:700;letter-spacing:-.01em;margin-bottom:7px}
.row:hover .row-title{color:var(--accent-ink)}
.row-sum{color:var(--ink-soft);max-width:64ch}

/* ---------- simple link list ---------- */
.list-links{border-top:1px solid var(--line-d)}
.list-links a{
  display:flex;justify-content:space-between;align-items:baseline;gap:20px;
  padding:20px 0;border-bottom:1px solid var(--line-d);text-decoration:none;
  font-weight:700;letter-spacing:-.01em;
}
.list-links a:hover{color:var(--accent-ink)}
.list-links .tag{
  font-size:var(--fs-s);font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-soft);text-align:right;flex:0 0 auto;
}
.list-links a:hover .tag{color:var(--accent-ink)}

/* ---------- bullet notes ---------- */
.notes li{position:relative;padding-left:20px;color:var(--ink-soft);margin-top:10px}
.notes li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:2px;background:var(--accent)}
.band--navy .notes li,.band--navy-2 .notes li{color:var(--on-navy-soft)}

/* ---------- CTA band ---------- */
.cta h2{font-size:var(--fs-m);font-weight:700;max-width:42ch;margin-bottom:14px}
.cta p{color:var(--on-navy-soft);max-width:58ch}
.cta .mail,.hero .mail{display:inline-block;margin-top:26px;font-weight:700;letter-spacing:.02em}

/* ---------- footer ---------- */
.foot{background:var(--navy);color:var(--on-navy-soft);border-top:1px solid var(--line);padding:44px 0 40px}
.foot-in{display:flex;justify-content:space-between;gap:26px 40px;flex-wrap:wrap}
.foot-brand{color:#fff;font-weight:700;letter-spacing:.13em;text-transform:uppercase;font-size:var(--fs-s)}
.foot p{font-size:var(--fs-s);letter-spacing:.04em;margin-top:9px;max-width:42ch}
.foot-nav{display:flex;gap:22px;flex-wrap:wrap}
.foot-nav a{
  font-size:var(--fs-s);font-weight:700;letter-spacing:.11em;text-transform:uppercase;
  color:var(--on-navy-soft);text-decoration:none;
}
.foot-nav a:hover{color:var(--accent)}
.foot-mail{color:#fff;font-weight:700;text-decoration:none;border-bottom:2px solid var(--accent);overflow-wrap:anywhere}
.foot-mail:hover{color:var(--accent)}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width:1000px){
  .pillars,.pillars--3{grid-template-columns:repeat(2,1fr);gap:28px 32px}
}
@media (max-width:880px){
  .mast-in{flex-wrap:wrap;gap:14px}
  .nav-btn{
    display:inline-flex;align-items:center;gap:10px;
    font-size:var(--fs-s);font-weight:700;letter-spacing:.13em;text-transform:uppercase;
    color:#fff;cursor:pointer;padding:9px 13px;border:1px solid var(--line);flex:0 0 auto;
  }
  .nav-btn::before{content:"";width:16px;height:2px;background:var(--accent);box-shadow:0 5px 0 var(--accent),0 -5px 0 var(--accent)}
  .nav-toggle:focus-visible+.nav-btn{outline:2px solid var(--accent);outline-offset:3px}
  .nav{display:none;order:3;width:100%;flex-direction:column;align-items:stretch;gap:0;padding-bottom:6px}
  .nav a{width:100%;padding:14px 0;border-top:1px solid var(--line);border-bottom:0}
  .nav a[aria-current="page"]{color:var(--accent)}
  .nav-toggle:checked ~ .nav{display:flex}
  .cards,.models{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;gap:32px}
  .band{padding:60px 0 64px}
  .hero{padding:64px 0 70px}
}
@media (max-width:640px){
  .wrap{padding:0 20px}
  .pillars,.pillars--3{grid-template-columns:1fr;gap:26px}
  .row{grid-template-columns:1fr;gap:8px}
  .row-meta{padding-top:0}
  .row-meta .cat{display:inline;margin:0}
  .row-meta .cat::after{content:" / "}
  .list-links a{flex-direction:column;gap:6px}
  .list-links .tag{text-align:left}
  .hero h1{max-width:none}
}

/* ==========================================================================
   PRINT
   ========================================================================== */
@media print{
  .masthead,.nav,.nav-btn,.skip{display:none}
  body{background:#fff;color:#000}
  .band,.band--navy,.band--navy-2,.band--paper-2,.foot{background:#fff;color:#000;padding:18pt 0;border:0}
  .band--navy .lede,.band--navy-2 .lede,.stat p,.cta p,.foot p,.foot-nav a,.foot-mail,.band--navy .notes li,.lede,.card p,.model dd,.row-sum{color:#000}
  .eyebrow,.band--navy .eyebrow,.stat .stat-label,.model dt,.row-meta .cat,.card-more{color:#000}
  .brand,.foot-brand,.band--navy .lnk,.cta .mail,.lnk{color:#000}
  .rule,.pillar,.stat,.model{border-color:#000}
  .cards{background:#fff;border:1px solid #000}
  .card{border:0}
  .row,.list-links a{break-inside:avoid;border-bottom:1px solid #000}
  .foot{border-top:1px solid #000}
}