/* =========================================================
   EvaLoop Frontier AI Lab — Solaris Noir theme
   Warm gold accent on a warm near-black ground, Bricolage Grotesque + Work Sans.
   ========================================================= */

:root{
  --bg:#16110A;
  --surface:#201A10;
  --surface-2:#281F13;
  --border:#3A3122;
  --ink:#F5EFE2;
  --ink-muted:#A69A82;
  --accent:#D9A54A;
  --accent-dim:#8A6A2E;
  --nav-h:64px;
  --max-w:1080px;
  --radius:14px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{font-size:18px;scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:'Work Sans','Work Sans Fallback',-apple-system,sans-serif;
  font-size:1rem;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3{
  font-family:'Bricolage Grotesque','Bricolage Grotesque Fallback',-apple-system,sans-serif;
  font-weight:700;
  line-height:1.15;
  letter-spacing:-0.01em;
  color:var(--ink);
  text-wrap:balance;
}

p{color:var(--ink);}
.nowrap{white-space:nowrap;}
a{color:var(--ink);}
a:focus-visible,button:focus-visible,.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}

.container{max-width:var(--max-w);margin:0 auto;padding:0 1.75rem;}

.site-nav{
  position:fixed;top:0;left:0;right:0;height:var(--nav-h);
  background:rgba(22,17,10,0.88);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);z-index:100;
  display:flex;align-items:center;
}
.nav-inner{max-width:var(--max-w);margin:0 auto;padding:0 1.75rem;width:100%;display:flex;align-items:center;justify-content:space-between;gap:1rem;}
.nav-logo{font-family:'Bricolage Grotesque',sans-serif;font-weight:700;font-size:1.05rem;text-decoration:none;color:var(--ink);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:0.15rem;list-style:none;}
.nav-links a{font-size:0.85rem;font-weight:500;text-decoration:none;color:var(--ink-muted);padding:0.45rem 0.7rem;border-radius:8px;transition:color .15s,background .15s;white-space:nowrap;}
.nav-links a:hover{color:var(--accent);background:var(--surface);}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:0.4rem;color:var(--ink);}
.nav-toggle svg{display:block;}

main{padding-top:var(--nav-h);}

.hero{position:relative;overflow:hidden;padding:6.5rem 0 5rem;border-bottom:1px solid var(--border);}
.hero::before{
  content:'';position:absolute;inset:0;pointer-events:none;z-index:0;
  background:radial-gradient(ellipse 70% 60% at 78% 35%, rgba(217,165,74,0.16) 0%, rgba(217,165,74,0.0) 60%);
}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:1;pointer-events:none;}
.eyebrow{position:relative;z-index:2;display:inline-block;font-size:0.85rem;letter-spacing:0.1em;text-transform:uppercase;color:var(--accent);margin-bottom:1.25rem;}
.hero h1{position:relative;z-index:2;font-size:clamp(2.75rem,6vw,4.6rem);margin-bottom:1.4rem;opacity:0;}
.hero .subhead{position:relative;z-index:2;font-size:1.2rem;color:var(--ink-muted);max-width:640px;margin-bottom:2.25rem;opacity:0;}
.hero-ctas{position:relative;z-index:2;display:flex;gap:1rem;flex-wrap:wrap;opacity:0;}

@media (prefers-reduced-motion:no-preference){
  .hero h1{animation:rise .6s ease-out .05s forwards;}
  .hero .subhead{animation:rise .6s ease-out .18s forwards;}
  .hero-ctas{animation:rise .6s ease-out .3s forwards;}
}
@media (prefers-reduced-motion:reduce){
  .hero h1,.hero .subhead,.hero-ctas{opacity:1;}
}
@keyframes rise{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:translateY(0);}}

.btn{display:inline-flex;align-items:center;gap:0.5rem;font-family:'Work Sans',sans-serif;font-size:0.95rem;font-weight:600;text-decoration:none;padding:0.85rem 1.6rem;border-radius:999px;border:1px solid transparent;transition:all .18s;cursor:pointer;}
.btn-primary{background:var(--accent);color:#1A1408;border-color:var(--accent);}
.btn-primary:hover{background:#EBC170;box-shadow:0 0 24px rgba(217,165,74,0.35);}
.btn-secondary{background:transparent;color:var(--ink);border-color:var(--border);}
.btn-secondary:hover{border-color:var(--accent);color:var(--accent);}

.section{padding:5rem 0;border-bottom:1px solid var(--border);}
.section-label{font-size:0.85rem;font-weight:600;letter-spacing:0.1em;text-transform:uppercase;color:var(--accent);margin-bottom:0.75rem;}
.section h2{font-size:clamp(1.8rem,3vw,2.3rem);margin-bottom:2rem;}

.focus-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.25rem;}
.focus-card{border:1px solid var(--border);border-radius:var(--radius);padding:1.85rem;background:var(--surface);transition:border-color .2s,transform .2s;}
.focus-card:hover,.focus-card:focus-within{border-color:var(--accent-dim);transform:translateY(-2px);}
.focus-card h3{font-size:1.25rem;margin-bottom:1rem;}
.focus-list{list-style:none;display:flex;flex-direction:column;gap:0.65rem;}
.focus-list li{position:relative;padding-left:1.2rem;font-size:0.95rem;font-weight:500;color:var(--ink);}
.focus-list li::before{content:'';position:absolute;left:0;top:0.55em;width:6px;height:6px;border-radius:50%;background:var(--accent);}

.approach-row{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
.approach-item{padding:0 1.75rem;border-left:1px solid var(--border);}
.approach-item:first-child{padding-left:0;border-left:none;}
.approach-item h3{font-size:1.15rem;margin-bottom:0.6rem;color:var(--accent);}
.approach-item p{font-size:0.95rem;color:var(--ink-muted);}

.founder-card{display:flex;gap:2.25rem;align-items:flex-start;border:1px solid var(--border);border-radius:var(--radius);padding:2.25rem;background:var(--surface);}
.founder-photo{width:128px;height:128px;border-radius:50%;object-fit:cover;flex-shrink:0;border:2px solid var(--accent-dim);}
.founder-info h3{font-size:1.4rem;margin-bottom:0.25rem;}
.founder-role{font-size:0.95rem;color:var(--accent);margin-bottom:1.1rem;}
.founder-bio{list-style:none;display:flex;flex-direction:column;gap:0.55rem;}
.founder-bio li{position:relative;padding-left:1.2rem;font-size:0.95rem;color:var(--ink);}
.founder-bio li::before{content:'';position:absolute;left:0;top:0.55em;width:6px;height:6px;border-radius:50%;background:var(--accent);}

.logo-wall{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem;}
.logo-wall li{display:flex;align-items:center;justify-content:center;height:112px;padding:1.5rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);transition:border-color .2s;}
.logo-wall li:hover{border-color:var(--accent-dim);}
.logo-wall img{height:30px;width:auto;max-width:100%;display:block;opacity:.8;transition:opacity .2s;}
.logo-wall li:hover img{opacity:1;}
.logo-wall img[src$="aws.svg"]{height:40px;}

.involve-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.25rem;}
.involve-card{display:flex;flex-direction:column;border:1px solid var(--border);border-radius:var(--radius);padding:2rem;background:var(--surface);}
.involve-card h3{font-size:1.25rem;margin-bottom:0.6rem;}
.involve-card p{font-size:0.95rem;color:var(--ink-muted);margin-bottom:1.25rem;}
.involve-card a.pagelink{margin-top:auto;font-size:1rem;font-weight:600;text-decoration:none;color:var(--accent);}
.involve-card a.pagelink:hover{text-decoration:underline;}

.contact-line{margin-top:2.25rem;font-size:1rem;color:var(--ink-muted);}
.contact-line a{color:var(--accent);font-weight:600;text-decoration:underline;text-underline-offset:3px;}

footer{padding:3rem 0;}
.footer-inner{display:flex;justify-content:space-between;align-items:flex-start;gap:1.5rem;flex-wrap:wrap;font-size:0.9rem;color:var(--ink-muted);}
.footer-brand{font-family:'Bricolage Grotesque',sans-serif;font-weight:700;color:var(--ink);margin-bottom:0.3rem;}
.footer-links{display:flex;gap:1.4rem;list-style:none;}
.footer-links a{color:var(--ink-muted);text-decoration:none;}
.footer-links a:hover{color:var(--accent);}

@media (max-width:900px){
  .focus-grid{grid-template-columns:1fr;}
  .approach-row{grid-template-columns:1fr;gap:1.5rem;}
  .approach-item{border-left:none;border-top:1px solid var(--border);padding:1.5rem 0 0;}
  .approach-item:first-child{border-top:none;padding-top:0;}
  .involve-grid{grid-template-columns:1fr;}
  .logo-wall{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:768px){
  .nav-links{display:none;flex-direction:column;position:absolute;top:var(--nav-h);left:0;right:0;background:var(--bg);border-bottom:1px solid var(--border);padding:0.75rem 1.5rem;gap:0.1rem;align-items:stretch;}
  .nav-links.open{display:flex;}
  .nav-links a{padding:0.6rem 0.3rem;}
  .nav-toggle{display:flex;}
  .founder-card{flex-direction:column;align-items:center;text-align:center;}
  .founder-bio{align-items:center;}
  .footer-inner{flex-direction:column;}
  .footer-links{flex-wrap:wrap;gap:0.6rem 1.4rem;}
  .logo-wall{gap:0.75rem;}
  .logo-wall li{height:84px;padding:0.75rem;}
  .logo-wall img{height:24px;}
  .logo-wall img[src$="aws.svg"]{height:32px;}
}
@media (max-width:480px){
  .container{padding:0 1.25rem;}
  .section{padding:3.5rem 0;}
}