/*
 * Public landing page styling, external per CSP convention (Section 14.5).
 */
:root{
  --ink-indigo:#1a1148;
  --brand-indigo:#2a166e;
  --indigo-soft:#40268f;
  --indigo-glass: rgba(42,22,110,.06);
  --gold:#f0b92e;
  --gold-deep:#a97a0f;
  --paper:#f7f6fb;
  --white:#ffffff;
  --ink:#181233;
  --ink-soft:#524c76;
  --line: rgba(26,17,72,.14);
  --shadow: 0 20px 50px -25px rgba(26,17,72,.35);
  --radius: 18px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Inter',sans-serif;
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3{
  font-family:'Fraunces',serif;
  margin:0;
  letter-spacing:-.01em;
  line-height:1.05;
}
p{margin:0;}
a{text-decoration:none;color:inherit;}
img{max-width:100%;display:block;}
.eyebrow{
  font-family:'IBM Plex Mono',monospace;
  font-size:.72rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  font-weight:600;
}
.wrap{
  max-width:1180px;
  margin:0 auto;
  padding:0 32px;
}
section{position:relative;}

/* reveal-on-scroll */
.reveal{opacity:0; transform:translateY(18px); transition:opacity .7s ease, transform .7s ease;}
.reveal.in{opacity:1; transform:translateY(0);}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1; transform:none; transition:none;}
  html{scroll-behavior:auto;}
}

/* ---------- CREST PLACEHOLDER (used when mcohes-crest.jpg is missing) ---------- */
.crest-mark{
  display:flex; align-items:center; justify-content:center;
  font-family:'Fraunces',serif; font-weight:600; letter-spacing:.02em;
  color:var(--ink-indigo); background:var(--gold);
  border-radius:50%;
  line-height:1;
}
.nav-brand .crest-mark{ width:38px; height:38px; font-size:.95rem; }
.hero-crest .crest-mark{ width:100%; aspect-ratio:1; max-width:272px; margin:0 auto; font-size:2.6rem; }

/* ---------- SCROLL PROGRESS ---------- */
.scroll-progress{
  position:fixed; top:0; left:0; height:3px; width:0%; z-index:60;
  background:linear-gradient(90deg, var(--gold), var(--gold-deep));
  transition:width .1s linear;
}

/* ---------- NAV ---------- */
header{
  position:sticky; top:0; z-index:50;
  background:rgba(26,17,72,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(240,185,46,.18);
  transition:box-shadow .25s ease, background .25s ease;
}
header.scrolled{
  background:rgba(20,13,58,.97);
  box-shadow:0 12px 30px -18px rgba(0,0,0,.55);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 32px;
  max-width:1180px; margin:0 auto;
}
.nav-brand{display:flex; align-items:center; gap:12px;}
.nav-brand img{width:38px; height:38px; object-fit:contain;}
.nav-brand-text{color:var(--white); line-height:1.1;}
.nav-brand-text b{font-family:'Fraunces',serif; font-size:1.02rem; font-weight:600; display:block;}
.nav-brand-text span{font-family:'IBM Plex Mono',monospace; font-size:.62rem; letter-spacing:.12em; color:var(--gold); text-transform:uppercase;}
.nav-links{display:flex; gap:30px; align-items:center;}
.nav-links a{color:rgba(255,255,255,.78); font-size:.88rem; font-weight:500; transition:color .2s;}
.nav-links a:hover{color:var(--gold);}
.nav-cta{
  background:var(--gold); color:var(--ink-indigo)!important; font-weight:600;
  padding:9px 18px; border-radius:999px; font-size:.85rem;
}
.nav-signin{border:1px solid rgba(255,255,255,.35); padding:8px 16px; border-radius:999px; font-size:.85rem;}
.nav-signin:hover{border-color:var(--gold); color:var(--gold)!important;}
.nav-toggle{display:none; background:none; border:0; color:var(--white); font-size:1.4rem; padding:10px; min-width:44px; min-height:44px; line-height:1; cursor:pointer;}

/* ---------- HERO ---------- */
.hero{
  background:
    radial-gradient(1100px 480px at 82% -10%, rgba(240,185,46,.14), transparent 60%),
    linear-gradient(180deg, var(--ink-indigo) 0%, var(--brand-indigo) 130%);
  color:var(--white);
  padding:96px 0 110px;
  overflow:hidden;
}
.hero-grid{
  display:grid; grid-template-columns:1.15fr .85fr; gap:56px; align-items:center;
}
.hero-eyebrow{color:var(--gold); display:flex; align-items:center; gap:10px; margin-bottom:22px;}
.hero-eyebrow::before{content:""; width:26px; height:1px; background:var(--gold); display:inline-block;}
.hero h1{
  font-size:clamp(2.4rem, 4.4vw, 3.6rem);
  font-weight:600;
  color:var(--white);
}
.hero h1 em{
  font-style:italic; font-weight:500; color:var(--gold);
}
.hero p.lede{
  margin-top:22px; font-size:1.08rem; line-height:1.65; color:rgba(255,255,255,.78); max-width:52ch;
}
.hero-ctas{display:flex; gap:16px; margin-top:36px; flex-wrap:wrap;}
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:13px 26px; border-radius:999px; font-weight:600; font-size:.92rem;
  border:1px solid transparent; cursor:pointer; transition:transform .2s ease, box-shadow .2s ease;
}
.btn:hover{transform:translateY(-2px);}
.btn-gold{background:var(--gold); color:var(--ink-indigo); box-shadow:0 14px 30px -14px rgba(240,185,46,.7);}
.btn-ghost{border-color:rgba(255,255,255,.35); color:var(--white);}
.btn-ghost:hover{border-color:var(--gold); color:var(--gold);}

.hero-stats{
  display:flex; gap:38px; margin-top:56px; flex-wrap:wrap;
}
.hero-stat b{
  font-family:'Fraunces',serif; font-size:2rem; color:var(--gold); display:block; font-weight:600;
}
.hero-stat span{
  font-family:'IBM Plex Mono',monospace; font-size:.68rem; letter-spacing:.08em; text-transform:uppercase; color:rgba(255,255,255,.6);
}
.infinity-pulse{animation:pulse 2.2s ease-in-out infinite;}
@keyframes pulse{
  0%,100%{opacity:1; transform:scale(1);}
  50%{opacity:.6; transform:scale(1.12);}
}

.hero-crest{
  position:relative; display:flex; justify-content:center;
}
.crest-frame{
  position:relative; width:100%; max-width:340px;
  padding:34px;
  border:1px solid rgba(240,185,46,.35);
  border-radius:26px;
  background:rgba(255,255,255,.03);
}
.crest-frame img{filter:drop-shadow(0 20px 40px rgba(0,0,0,.35));}
.crest-tag{
  position:absolute; left:50%; bottom:-18px; transform:translateX(-50%);
  background:var(--gold); color:var(--ink-indigo);
  font-family:'IBM Plex Mono',monospace; font-size:.66rem; font-weight:600; letter-spacing:.1em;
  padding:7px 16px; border-radius:999px; white-space:nowrap;
  box-shadow:0 10px 24px -10px rgba(0,0,0,.5);
}

/* ---------- PROBLEM ---------- */
.problem{padding:100px 0; background:var(--white);}
.section-head{max-width:640px; margin-bottom:52px;}
.section-head .eyebrow{color:var(--gold-deep);}
.section-head h2{font-size:clamp(1.8rem,3vw,2.4rem); margin-top:14px; color:var(--ink); font-weight:600;}
.section-head p{margin-top:16px; color:var(--ink-soft); font-size:1.02rem; line-height:1.6;}

.ledger{
  display:grid; grid-template-columns:repeat(2,1fr); gap:1px;
  background:var(--line); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden;
}
.ledger-item{background:var(--white); padding:26px 28px; display:flex; gap:16px;}
.ledger-item .mark{font-family:'Fraunces',serif; font-style:italic; color:var(--gold-deep); font-size:1.3rem; flex-shrink:0;}
.ledger-item p{color:var(--ink-soft); font-size:.94rem; line-height:1.55;}
.ledger-item strong{color:var(--ink); display:block; margin-bottom:4px; font-size:.98rem;}

.arrow-row{display:flex; align-items:center; justify-content:center; gap:18px; margin:52px 0; color:var(--ink-soft);}
.arrow-row .line{height:1px; width:80px; background:var(--line);}
.arrow-row span{font-family:'IBM Plex Mono',monospace; font-size:.7rem; letter-spacing:.14em; text-transform:uppercase;}

/* ---------- DOMAINS / SIGNATURE SHIELD CARDS ---------- */
.domains{padding:20px 0 100px; background:var(--paper);}
.domains .section-head{max-width:720px;}
.domain-grid{
  display:grid; grid-template-columns:repeat(3, 1fr); gap:34px 28px; margin-top:20px;
}
.shield-card{
  position:relative;
}
.shield-face{
  position:relative;
  background:var(--white);
  border:1px solid var(--line);
  border-top:3px solid var(--gold);
  border-radius:14px 14px 0 0;
  padding:30px 26px 40px;
  clip-path: polygon(0 0, 100% 0, 100% 78%, 50% 100%, 0 78%);
  min-height:300px;
  box-shadow: var(--shadow);
  transition:transform .25s ease;
  overflow:hidden;
}
.shield-card:hover .shield-face{transform:translateY(-6px);}
.shield-face::before{
  content:"";
  position:absolute; inset:0;
  background:radial-gradient(220px circle at var(--mx,50%) var(--my,50%), rgba(240,185,46,.16), transparent 70%);
  opacity:0; transition:opacity .3s ease; pointer-events:none;
}
.shield-card:hover .shield-face::before{opacity:1;}
.shield-num{
  font-family:'IBM Plex Mono',monospace; font-size:.7rem; color:var(--gold-deep); letter-spacing:.1em;
}
.shield-face h3{
  margin-top:10px; font-size:1.18rem; color:var(--ink); font-weight:600;
}
.shield-face ul{
  list-style:none; padding:0; margin:18px 0 0; display:flex; flex-direction:column; gap:9px;
}
.shield-face li{
  font-size:.86rem; color:var(--ink-soft); padding-left:16px; position:relative; line-height:1.4;
}
.shield-face li::before{
  content:""; position:absolute; left:0; top:.55em; width:6px; height:6px; border-radius:50%; background:var(--gold);
}
.platform-list{display:grid; grid-template-columns:repeat(4,1fr); gap:10px 20px;}
.shield-wide{grid-column: span 3;}
.shield-face-wide{min-height:auto; padding-bottom:44px;}
.shield-ribbon{
  margin:-14px auto 0; width:86%;
  background:var(--brand-indigo); color:var(--white);
  text-align:center; padding:8px 10px 10px;
  font-family:'IBM Plex Mono',monospace; font-size:.62rem; letter-spacing:.1em; text-transform:uppercase;
  clip-path: polygon(6% 0, 94% 0, 100% 100%, 50% 82%, 0 100%);
  position:relative; z-index:2;
}

/* ---------- PILOT / CTA ---------- */
.pilot{padding:110px 0; background:var(--paper); text-align:center;}
.pilot h2{font-size:clamp(1.9rem,3.4vw,2.6rem); max-width:16ch; margin:0 auto; color:var(--ink); font-weight:600;}
.pilot p{max-width:56ch; margin:20px auto 0; color:var(--ink-soft); font-size:1.02rem; line-height:1.6;}
.pilot .btn-gold{background:var(--brand-indigo); color:var(--white); box-shadow:0 14px 30px -14px rgba(42,22,110,.5);}
.pilot-ctas{margin-top:34px; display:flex; gap:16px; justify-content:center; flex-wrap:wrap;}
.pilot .btn-ghost{border-color:var(--line); color:var(--ink);}
.pilot .btn-ghost:hover{border-color:var(--gold-deep); color:var(--gold-deep);}

/* ---------- FOOTER ---------- */
footer{background:var(--ink-indigo); color:rgba(255,255,255,.6); padding:44px 0;}
.footer-inner{display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:18px;}
.footer-inner b{color:var(--white); font-family:'Fraunces',serif; font-weight:600;}
.footer-inner .fmark{font-family:'IBM Plex Mono',monospace; font-size:.7rem; letter-spacing:.08em;}

/* ---------- BACK TO TOP ---------- */
.to-top{
  position:fixed; right:24px; bottom:24px; z-index:55;
  width:46px; height:46px; border-radius:50%;
  background:var(--gold); color:var(--ink-indigo); border:0;
  display:flex; align-items:center; justify-content:center; font-size:1.2rem;
  box-shadow:0 14px 30px -12px rgba(0,0,0,.5);
  opacity:0; visibility:hidden; transform:translateY(12px);
  transition:opacity .25s ease, transform .25s ease, visibility .25s;
  cursor:pointer;
}
.to-top.show{opacity:1; visibility:visible; transform:translateY(0);}
.to-top:hover{transform:translateY(-3px);}

@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;}
  .hero-crest{order:-1;}
  .ledger{grid-template-columns:1fr;}
  .domain-grid{grid-template-columns:1fr 1fr;}
  .shield-wide{grid-column: span 2;}
  .platform-list{grid-template-columns:repeat(2,1fr);}
  .nav-links{display:none;}
  .nav-toggle{display:block;}
  .nav-open .nav-links{
    display:flex;
    position:absolute; top:64px; left:0; right:0;
    background:#1a1148;
    flex-direction:column;
    padding:20px 32px; gap:18px;
    z-index:40;
  }
}
@media (max-width:560px){
  .domain-grid{grid-template-columns:1fr;}
  .shield-wide{grid-column: span 1;}
  .platform-list{grid-template-columns:1fr;}
  .wrap{padding:0 20px;}
  .hero{padding:80px 0 80px;}
  .hero-stats{gap:26px;}
}