:root{
  --bg:#0f172a;--bg2:#111936;--panel:rgba(15,23,42,.68);--panel2:rgba(30,41,82,.40);
  --line:rgba(255,255,255,.09);--text:#f8fafc;--muted:#cbd5e1;--soft:#94a3b8;
  --indigo:#818cf8;--violet:#a78bfa;--cyan:#38bdf8;--amber:#f59e0b;
  --radius:20px;--shadow:0 24px 70px rgba(2,6,23,.32);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;min-height:100vh;overflow-x:hidden;color:var(--text);background:
radial-gradient(ellipse 70% 48% at 50% 2%,rgba(99,102,241,.16),transparent 62%),
linear-gradient(180deg,var(--bg),var(--bg2) 52%,var(--bg));font-family:Inter,system-ui,sans-serif;line-height:1.65}
body::before{content:"";position:fixed;inset:0;z-index:-1;opacity:.03;pointer-events:none;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
a{color:inherit}.wrap{width:min(1180px,calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;min-height:72px;padding:0 max(20px,calc((100vw - 1180px)/2));background:rgba(15,23,42,.80);border-bottom:1px solid var(--line);backdrop-filter:blur(18px)}
.brand{text-decoration:none;font-weight:800;letter-spacing:.15em;font-size:.84rem;color:var(--accent)}
.site-nav{display:flex;gap:26px}.site-nav a{text-decoration:none;color:rgba(226,232,240,.74);font-size:.92rem}.site-nav a:hover{color:#fff}
.menu{display:none;border:1px solid var(--line);background:rgba(255,255,255,.04);color:#fff;border-radius:12px;padding:9px 12px}
.hero{position:relative;overflow:hidden;padding:88px 0 96px;border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;width:620px;height:620px;left:50%;top:-240px;transform:translateX(-50%);border-radius:50%;background:radial-gradient(circle,var(--hero-glow),transparent 70%);filter:blur(14px)}
.hero .wrap{position:relative;z-index:2;text-align:center}.eyebrow{text-transform:uppercase;letter-spacing:.18em;font-size:.72rem;font-weight:750;color:var(--accent)}
h1,h2,h3{letter-spacing:-.035em;text-wrap:balance;margin-top:0}h1{font-size:clamp(3rem,7vw,6.2rem);line-height:1.01;margin:20px auto 26px;max-width:1040px}
h1 span{background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
h2{font-size:clamp(2.2rem,4.8vw,4.6rem);line-height:1.08}.lead{max-width:820px;margin:0 auto;color:var(--muted);font-size:clamp(1.05rem,2vw,1.25rem)}
.actions{display:flex;justify-content:center;flex-wrap:wrap;gap:14px;margin-top:34px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border-radius:14px;border:1px solid rgba(255,255,255,.11);background:rgba(255,255,255,.05);text-decoration:none;font-weight:700}.button.primary{background:linear-gradient(135deg,var(--accent),var(--accent2));border-color:transparent;box-shadow:0 10px 30px var(--button-glow)}
.section{padding:104px 0}.section.tonal{background:rgba(15,23,42,.34);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:830px;margin-bottom:44px}.section-head p:not(.eyebrow){color:var(--muted);font-size:1.06rem}
.grid{display:grid;gap:22px}.grid.three{grid-template-columns:repeat(3,1fr)}.grid.two{grid-template-columns:repeat(2,1fr)}
.card{position:relative;padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(145deg,var(--panel),var(--panel2));box-shadow:0 18px 54px rgba(2,6,23,.22);backdrop-filter:blur(18px)}
.card::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:0 0 var(--radius) var(--radius);background:linear-gradient(90deg,var(--accent),var(--accent2))}
.card p,.card li,.copy p{color:var(--muted)}.card ul{padding-left:20px}.card li{margin:8px 0}
.number{display:block;color:var(--accent);font-weight:800;letter-spacing:.14em;margin-bottom:28px}
.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:64px;align-items:start}
.boundary{padding:28px;border:1px solid rgba(255,255,255,.10);border-radius:20px;background:rgba(255,255,255,.035)}
.boundary strong{color:#fff}.ecosystem-links{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.ecosystem-links a{padding:18px;border:1px solid var(--line);border-radius:16px;text-decoration:none;background:rgba(255,255,255,.035)}
.ecosystem-links a:hover{border-color:rgba(255,255,255,.22)}
.footer{border-top:1px solid var(--line);background:rgba(2,6,23,.48)}.footer-inner{display:flex;justify-content:space-between;gap:30px;padding:42px 0}.footer p{margin:6px 0 0;color:var(--soft)}.footer-links{display:flex;gap:20px;flex-wrap:wrap}.footer-links a{text-decoration:none;color:var(--muted)}
@media(max-width:900px){.grid.three,.grid.two,.split{grid-template-columns:1fr}.ecosystem-links{grid-template-columns:1fr}.site-nav{gap:16px}}
@media(max-width:760px){.menu{display:block}.site-nav{position:absolute;left:20px;right:20px;top:62px;display:none;flex-direction:column;padding:18px;border:1px solid var(--line);border-radius:16px;background:rgba(15,23,42,.97)}.site-nav.open{display:flex}.hero{padding:64px 0 72px}.section{padding:76px 0}.footer-inner{flex-direction:column}}


/* Linked architecture navigation + professional footer */
.nav-dropdown{position:relative}
.nav-dropdown summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:7px;color:inherit}
.nav-dropdown summary::-webkit-details-marker{display:none}
.nav-dropdown summary .chev{font-size:.82em;transition:transform .2s ease}
.nav-dropdown[open] summary .chev{transform:rotate(180deg)}
.dropdown-menu{
  position:absolute;top:calc(100% + 14px);right:0;z-index:80;
  min-width:285px;padding:10px;border:1px solid rgba(255,255,255,.12);
  border-radius:16px;background:rgba(9,15,34,.98);
  box-shadow:0 24px 60px rgba(0,0,0,.35);backdrop-filter:blur(18px)
}
.dropdown-menu a{display:block!important;padding:11px 13px!important;border-radius:10px!important;white-space:normal!important;text-decoration:none!important}
.dropdown-menu a:hover{background:rgba(255,255,255,.07)}
.resource-section{padding:92px 0;border-top:1px solid rgba(255,255,255,.09)}
.resource-head{max-width:800px;margin-bottom:34px}
.resource-head .resource-label{text-transform:uppercase;letter-spacing:.16em;font-size:.72rem;font-weight:800;color:#a78bfa}
.resource-head h2{margin:10px 0 14px}
.resource-head p{color:#cbd5e1}
.resource-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.resource-card{display:flex;flex-direction:column;min-width:0;padding:24px;border:1px solid rgba(255,255,255,.10);border-radius:18px;background:linear-gradient(145deg,rgba(15,23,42,.68),rgba(30,41,82,.35));text-decoration:none}
.resource-card:hover{border-color:rgba(167,139,250,.42);transform:translateY(-2px)}
.resource-card .resource-kicker{color:#a78bfa;font-size:.73rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase}
.resource-card h3{margin:10px 0 8px;color:#fff}
.resource-card p{margin:0;color:#cbd5e1}
.resource-card .resource-arrow{margin-top:auto;padding-top:18px;color:#c4b5fd;font-weight:800}
.prof-footer{border-top:1px solid rgba(255,255,255,.10);background:rgba(2,6,23,.72)}
.prof-footer-inner{display:grid;grid-template-columns:1.35fr .8fr .8fr;gap:56px;padding:52px 0}
.prof-footer-brand strong{display:block;margin-bottom:12px;color:#fff}
.prof-footer-brand p{margin:0;color:#94a3b8;max-width:560px}
.prof-footer h3{margin:0 0 14px;font-size:.82rem;letter-spacing:.13em;text-transform:uppercase;color:#a78bfa}
.prof-footer-links{display:flex;flex-direction:column;align-items:flex-start;gap:9px}
.prof-footer-links a{color:#cbd5e1;text-decoration:none}
.prof-footer-links a:hover{color:#fff}
.prof-footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:17px 0;color:#64748b;font-size:.86rem}
@media(max-width:900px){
 .resource-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .prof-footer-inner{grid-template-columns:1fr 1fr;gap:34px}
 .prof-footer-brand{grid-column:1/-1}
}
@media(max-width:760px){
 .dropdown-menu{position:static;min-width:0;margin-top:8px;box-shadow:none}
 .resource-grid{grid-template-columns:1fr}
 .resource-section{padding:68px 0}
 .prof-footer-inner{grid-template-columns:1fr;gap:30px}
 .prof-footer-brand{grid-column:auto}
}


/* v3 universal navigation repair */
.nav-dropdown summary .chev{
  width:9px;
  height:9px;
  display:inline-block;
  flex:0 0 9px;
  margin-left:2px;
  font-size:0!important;
  border-right:1.8px solid currentColor;
  border-bottom:1.8px solid currentColor;
  transform:rotate(45deg) translateY(-2px);
  transform-origin:center;
  transition:transform .2s ease;
}
.nav-dropdown[open] summary .chev{
  transform:rotate(225deg) translate(-1px,-1px);
}

.nav-toggle{
  display:none;
  width:44px;
  height:42px;
  padding:0;
  border:1px solid rgba(255,255,255,.15)!important;
  border-radius:12px!important;
  background:rgba(255,255,255,.055)!important;
  color:#fff!important;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle-lines,
.nav-toggle-lines::before,
.nav-toggle-lines::after{
  display:block;
  width:19px;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle-lines{position:relative}
.nav-toggle-lines::before,
.nav-toggle-lines::after{
  content:"";
  position:absolute;
  left:0;
}
.nav-toggle-lines::before{top:-6px}
.nav-toggle-lines::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle-lines{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle-lines::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-lines::after{transform:translateY(-6px) rotate(-45deg)}

@media(max-width:860px){
  .topbar .nav,
  .site-header{
    position:relative;
  }

  .nav-toggle{
    display:inline-flex;
    margin-left:auto;
    flex:0 0 auto;
  }

  .navlinks,
  .site-nav,
  #site-nav{
    display:none!important;
    position:absolute!important;
    top:calc(100% + 1px);
    left:18px;
    right:18px;
    z-index:100;
    max-height:calc(100vh - 92px);
    overflow-y:auto;
    padding:14px!important;
    flex-direction:column!important;
    align-items:stretch!important;
    gap:4px!important;
    border:1px solid rgba(255,255,255,.12);
    border-radius:0 0 16px 16px;
    background:rgba(9,15,34,.985)!important;
    box-shadow:0 26px 60px rgba(0,0,0,.42);
    backdrop-filter:blur(20px);
  }

  .navlinks.nav-open,
  .site-nav.nav-open,
  #site-nav.nav-open{
    display:flex!important;
  }

  .navlinks > a,
  .site-nav > a,
  #site-nav > a,
  .nav-dropdown > summary{
    width:100%;
    min-height:44px;
    padding:11px 12px!important;
    justify-content:space-between;
    border-radius:10px;
    font-size:.88rem!important;
    letter-spacing:.08em!important;
    text-align:left;
  }

  .navlinks > a:hover,
  .site-nav > a:hover,
  #site-nav > a:hover,
  .nav-dropdown > summary:hover{
    background:rgba(255,255,255,.06);
  }

  .nav-dropdown{
    width:100%;
  }

  .dropdown-menu{
    position:static!important;
    min-width:0!important;
    width:100%;
    margin:4px 0 2px;
    padding:6px!important;
    border-radius:12px!important;
    box-shadow:none!important;
    background:rgba(255,255,255,.035)!important;
  }

  .dropdown-menu a{
    min-height:42px;
    display:flex!important;
    align-items:center;
    padding:9px 11px!important;
    font-size:.84rem!important;
  }
}


/* v4 internal-page home return */
.page-home-action{
  width:min(940px,calc(100% - 36px));
  margin:0 auto;
  padding:8px 0 42px;
}
.page-home-button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:46px;
  padding:0 18px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(135deg,#6366f1,#8b5cf6);
  color:#fff!important;
  text-decoration:none!important;
  font-weight:700;
  box-shadow:0 12px 28px rgba(99,102,241,.24);
}
.page-home-button:hover,
.page-home-button:focus-visible{
  transform:translateY(-2px);
  box-shadow:0 16px 34px rgba(99,102,241,.34);
}


/* v6 consistency guard */
.page-home-action{
  width:min(1180px,calc(100% - 40px));
  margin:0 auto;
  padding:20px 0 40px;
  border-top:1px solid rgba(255,255,255,.08);
}
.page-home-button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:46px;
  padding:0 18px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(135deg,#6366f1,#8b5cf6);
  color:#fff!important;
  text-decoration:none!important;
  font-weight:700;
}


/* v7 global alignment correction */
.prof-footer{
  width:100%;
  overflow:hidden;
}

.prof-footer > .wrap,
.prof-footer .prof-footer-inner,
.prof-footer .prof-footer-bottom{
  width:min(1180px,calc(100% - 40px))!important;
  max-width:min(1180px,calc(100% - 40px))!important;
  margin-left:auto!important;
  margin-right:auto!important;
  padding-left:0!important;
  padding-right:0!important;
}

.prof-footer-inner{
  box-sizing:border-box;
  align-items:start;
}

.prof-footer-brand,
.prof-footer-inner > div{
  min-width:0;
}

.prof-footer-brand p{
  max-width:620px;
}

.page-home-action{
  width:min(940px,calc(100% - 36px))!important;
  max-width:min(940px,calc(100% - 36px))!important;
  margin-left:auto!important;
  margin-right:auto!important;
  padding-left:0!important;
  padding-right:0!important;
  box-sizing:border-box;
}

.page-home-button{
  margin-left:0!important;
}

.page-shell,
.concept-main{
  width:min(940px,calc(100% - 36px))!important;
  max-width:min(940px,calc(100% - 36px))!important;
  margin-left:auto!important;
  margin-right:auto!important;
  box-sizing:border-box;
}

@media(max-width:900px){
  .prof-footer > .wrap,
  .prof-footer .prof-footer-inner,
  .prof-footer .prof-footer-bottom{
    width:calc(100% - 32px)!important;
    max-width:calc(100% - 32px)!important;
  }
}

@media(max-width:760px){
  .page-home-action,
  .page-shell,
  .concept-main{
    width:calc(100% - 28px)!important;
    max-width:calc(100% - 28px)!important;
  }

  .prof-footer > .wrap,
  .prof-footer .prof-footer-inner,
  .prof-footer .prof-footer-bottom{
    width:calc(100% - 28px)!important;
    max-width:calc(100% - 28px)!important;
  }
}


/* v8 secondary action contrast */
.page-actions a:not(.primary),
.page-actions a.secondary,
a[href="https://humanexperiencearchitecture.com/"].page-secondary-link{
  background:rgba(255,255,255,.055)!important;
  border:1px solid rgba(196,181,253,.42)!important;
  color:#f8fafc!important;
  text-decoration:none!important;
  font-weight:700;
  box-shadow:0 10px 26px rgba(2,6,23,.18);
}

.page-actions a:not(.primary):hover,
.page-actions a:not(.primary):focus-visible,
.page-actions a.secondary:hover,
.page-actions a.secondary:focus-visible,
a[href="https://humanexperiencearchitecture.com/"].page-secondary-link:hover,
a[href="https://humanexperiencearchitecture.com/"].page-secondary-link:focus-visible{
  background:rgba(167,139,250,.16)!important;
  border-color:rgba(216,180,254,.78)!important;
  color:#ffffff!important;
  transform:translateY(-2px);
  box-shadow:0 14px 32px rgba(76,29,149,.22);
}


/* v9 internal-page action alignment */
main > .page-home-action,
.page-shell > .page-home-action,
.concept-main > .page-home-action{
  width:100%!important;
  max-width:none!important;
  margin:0!important;
  padding:34px 0 0!important;
  border-top:0!important;
  box-sizing:border-box;
}

main > .page-home-action .page-home-button,
.page-shell > .page-home-action .page-home-button,
.concept-main > .page-home-action .page-home-button{
  margin:0!important;
}