/* Your AI Access — shared site styles
   Brand: docs/brand/YOUR_AI_ACCESS_BRAND.md
   Palette: navy #0a1f4d · electric #1f6bff · cream #f7f4ec · ink #0b1220
*/

:root{
  --navy:#0a1f4d;
  --electric:#1f6bff;
  --cream:#f7f4ec;
  --ink:#0b1220;
  --muted:#4b5b73;
  --line:#e4dfd2;
  --success:#0f8a5f;
  --warning:#c9740b;
  --gold:#c9a227;
  --white:#ffffff;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--cream);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{
  font-family:'Inter Tight','Inter',-apple-system,sans-serif;
  font-weight:700;
  letter-spacing:-0.015em;
  line-height:1.15;
  color:var(--navy);
  margin:0 0 0.6em;
}
h1{font-size:clamp(34px,5.6vw,58px)}
h2{font-size:clamp(26px,3.8vw,38px)}
h3{font-size:clamp(19px,2.4vw,24px)}
p{margin:0 0 1em}
a{color:var(--electric);text-decoration:none}
a:hover{text-decoration:underline}
a:focus-visible,button:focus-visible{outline:2px solid var(--electric);outline-offset:3px}

.wrap{max-width:1120px;margin:0 auto;padding:0 22px}
.wrap-tight{max-width:820px;margin:0 auto;padding:0 22px}

/* ── Header ────────────────────────────────────────────── */
header.bar{
  position:sticky;top:0;z-index:50;
  background:rgba(247,244,236,0.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 0;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy)}
.brand img{width:36px;height:36px}
.brand .word{font-family:'Inter Tight',sans-serif;font-weight:800;font-size:18px;letter-spacing:-0.01em}
.brand .word small{display:block;font-family:'JetBrains Mono',monospace;font-weight:400;font-size:9px;letter-spacing:0.18em;color:var(--muted);text-transform:uppercase;margin-top:2px;font-style:italic;opacity:0.65}
.nav-links{display:flex;gap:22px;align-items:center}
.nav-links a{color:var(--ink);font-size:14px;font-weight:500;text-decoration:none}
.nav-links a:hover{color:var(--electric)}
.nav-cta{background:var(--electric);color:#fff;padding:9px 18px;border-radius:6px;font-weight:600;font-size:13.5px}
.nav-cta:hover{background:var(--navy);text-decoration:none;color:#fff}

/* Mobile nav toggle */
.nav-toggle{display:none;background:transparent;border:0;color:var(--navy);font-size:22px;cursor:pointer;padding:6px}
@media (max-width:820px){
  .nav-toggle{display:block}
  .nav-links{display:none;position:absolute;top:100%;right:22px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px 20px;flex-direction:column;gap:14px;box-shadow:0 12px 30px -10px rgba(10,31,77,0.2)}
  .nav-links.open{display:flex}
}

/* ── Hero + sections ───────────────────────────────────── */
.hero{background:var(--cream);position:relative;overflow:hidden;padding:60px 0 80px}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(700px 400px at 85% 5%,rgba(31,107,255,0.09),transparent 60%),
    radial-gradient(600px 400px at 5% 105%,rgba(10,31,77,0.06),transparent 55%);
  pointer-events:none;
}
.hero .wrap{position:relative;z-index:1}
.hero h1{max-width:22ch;margin:12px 0 18px}
.hero .lead{font-size:clamp(17px,2vw,20px);color:var(--muted);max-width:56ch;margin:0 0 30px}
.hero .cta-row{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.eyebrow{font-size:11.5px;font-weight:700;letter-spacing:0.22em;text-transform:uppercase;color:var(--electric);margin-bottom:6px}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--electric);color:#fff;
  padding:13px 24px;border-radius:6px;
  font-size:14px;font-weight:600;text-decoration:none;
  border:0;cursor:pointer;transition:background .18s;
}
.btn:hover{background:var(--navy);color:#fff;text-decoration:none}
.btn.secondary{background:transparent;color:var(--navy);border:1.5px solid var(--navy)}
.btn.secondary:hover{background:var(--navy);color:#fff}
.btn.gold{background:var(--gold);color:#1a1200}
.btn.gold:hover{background:#a88718;color:#fff}

section{padding:64px 0;border-bottom:1px solid var(--line)}
section.alt{background:#fff}
section.dark{background:var(--navy);color:#e2e8f2;border-bottom:0}
section.dark h1,section.dark h2,section.dark h3{color:#fff}
section.dark p{color:#b7c1d4}
section.dark a{color:#8bb4ff}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media (max-width:820px){
  .grid-3,.grid-2,.grid-4{grid-template-columns:1fr}
}

.card{
  background:#fff;border:1px solid var(--line);border-radius:10px;
  padding:26px 22px;
}
.card h3{margin-top:0}
.card p{color:var(--muted);font-size:14.5px;margin-bottom:0}

/* ── Physics motif divider ─────────────────────────────── */
.eqn{
  font-family:'JetBrains Mono',monospace;
  font-style:italic;
  font-size:13px;
  color:var(--muted);
  opacity:0.55;
  text-align:center;
  letter-spacing:0.02em;
  margin:8px 0;
}
.eqn-row{
  display:flex;flex-wrap:wrap;justify-content:center;gap:36px;
  margin:32px 0;
  padding:18px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.eqn-row .eqn{margin:0}

/* ── Persona strip ─────────────────────────────────────── */
.persona{text-align:center;padding:20px 12px}
.persona .icon{font-size:30px;color:var(--electric);margin-bottom:8px}
.persona h4{font-size:15px;margin:0 0 4px;font-weight:700;color:var(--navy)}
.persona p{font-size:13.5px;color:var(--muted);margin:0}

/* ── Redeem form ───────────────────────────────────────── */
.form-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:32px 28px;max-width:520px;margin:0 auto}
.form-card label{display:block;font-size:12px;letter-spacing:0.06em;text-transform:uppercase;color:var(--muted);font-weight:600;margin:14px 0 6px}
.form-card input,.form-card textarea,.form-card select{
  width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:6px;
  font-size:15px;font-family:inherit;color:var(--ink);background:#fff;
}
.form-card input:focus,.form-card textarea:focus,.form-card select:focus{outline:none;border-color:var(--electric);box-shadow:0 0 0 3px rgba(31,107,255,0.15)}
.form-card .btn{width:100%;justify-content:center;margin-top:20px}
.form-msg{margin-top:14px;padding:10px 14px;border-radius:6px;font-size:14px}
.form-msg.ok{background:rgba(15,138,95,0.1);color:var(--success)}
.form-msg.err{background:rgba(201,116,11,0.1);color:var(--warning)}

/* ── FAQ ───────────────────────────────────────────────── */
.faq details{background:#fff;border:1px solid var(--line);border-radius:8px;margin-bottom:10px}
.faq summary{cursor:pointer;padding:16px 22px;font-weight:600;color:var(--navy);list-style:none;display:flex;justify-content:space-between;align-items:center;font-size:15.5px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--electric);font-size:22px;font-weight:400}
.faq details[open] summary::after{content:"−"}
.faq p{padding:0 22px 18px;color:var(--muted);margin:0;font-size:14.5px;line-height:1.65}

/* ── Legal / prose pages ───────────────────────────────── */
.prose{max-width:760px;margin:0 auto;color:var(--ink)}
.prose h1{font-size:clamp(30px,4.4vw,44px);margin-top:24px}
.prose h2{font-size:clamp(22px,3vw,28px);margin-top:44px;color:var(--navy);border-bottom:1px solid var(--line);padding-bottom:8px}
.prose h3{font-size:19px;margin-top:26px}
.prose p,.prose li{font-size:15.5px;line-height:1.72;color:#2a3548}
.prose ul,.prose ol{padding-left:22px;margin:0 0 1.1em}
.prose ul li,.prose ol li{margin-bottom:0.5em}
.prose small{color:var(--muted);font-size:13.5px}
.prose code{background:#f0ecdf;padding:2px 6px;border-radius:4px;font-family:'JetBrains Mono',monospace;font-size:0.88em}
.prose pre{background:var(--navy);color:#dfe7f5;padding:16px 18px;border-radius:8px;overflow-x:auto;font-family:'JetBrains Mono',monospace;font-size:13px;line-height:1.55}
.prose pre code{background:transparent;padding:0;color:inherit}
.prose blockquote{border-left:3px solid var(--electric);padding:6px 0 6px 18px;margin:20px 0;color:var(--muted);font-style:italic}
.prose .updated{color:var(--muted);font-size:13px}

/* ── Footer ────────────────────────────────────────────── */
footer.site{
  background:var(--navy);color:#c4cee1;
  padding:48px 0 26px;
}
footer.site h4{color:#fff;font-size:14px;letter-spacing:0.06em;text-transform:uppercase;margin:0 0 12px;font-weight:700}
footer.site a{color:#c4cee1;text-decoration:none;font-size:14px;display:block;margin:5px 0}
footer.site a:hover{color:#fff}
footer.site .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
@media (max-width:820px){footer.site .cols{grid-template-columns:1fr 1fr;gap:24px}}
footer.site .about{max-width:340px}
footer.site .about p{font-size:13.5px;color:#a5b3cf;line-height:1.6}
footer.site .about .brand{color:#fff;margin-bottom:12px}
footer.site .about .brand .word{color:#fff}
footer.site .about .brand .word small{color:#8bb4ff}
footer.site .socials{display:flex;gap:12px;margin-top:14px}
footer.site .socials a{background:rgba(255,255,255,0.08);border-radius:50%;width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;margin:0;font-size:15px}
footer.site .socials a:hover{background:var(--electric);color:#fff}
footer.site .fine{
  border-top:1px solid rgba(255,255,255,0.12);margin-top:36px;padding-top:20px;
  color:#8ea0c3;font-size:12.5px;letter-spacing:0.02em;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
}
footer.site .fine .eqn{color:#7286ac;margin:0;opacity:0.7}

/* ── Utility ───────────────────────────────────────────── */
.center{text-align:center}
.mt-0{margin-top:0}.mt-1{margin-top:14px}.mt-2{margin-top:28px}.mt-3{margin-top:44px}
.mb-0{margin-bottom:0}.mb-1{margin-bottom:14px}.mb-2{margin-bottom:28px}
.badge{display:inline-block;padding:3px 10px;background:var(--electric);color:#fff;border-radius:100px;font-size:11.5px;font-weight:700;letter-spacing:0.06em;text-transform:uppercase}
.badge.gold{background:var(--gold);color:#1a1200}