/* F · Crypto — green + tan cryptographic vault feel */
:root{
  --deep:#062820;
  --green:#0a4f40;
  --green-2:#0d6b55;
  --green-3:#12866a;
  --mint:#d8f0e4;
  --tan:#e8d4a8;
  --tan-2:#d4b87a;
  --tan-3:#f3e6c4;
  --ink:#f4efe4;
  --ink-dark:#14352c;
  --muted:rgba(244,239,228,.62);
  --muted-dark:#5c7268;
  --line:rgba(232,212,168,.18);
  --line-dark:rgba(20,53,44,.12);
  --shadow:0 28px 70px rgba(0,20,16,.35);
  --sans:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --serif:Georgia,"Times New Roman",serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);background:var(--deep);
  font-family:var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
.shell{width:min(1180px,calc(100% - 40px));margin-inline:auto}

/* Hex / ambient */
.hex-field{
  position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.22;
  background-image:
    linear-gradient(30deg,rgba(232,212,168,.07) 12%,transparent 12.5%,transparent 87%,rgba(232,212,168,.07) 87.5%,rgba(232,212,168,.07)),
    linear-gradient(150deg,rgba(232,212,168,.07) 12%,transparent 12.5%,transparent 87%,rgba(232,212,168,.07) 87.5%,rgba(232,212,168,.07)),
    linear-gradient(30deg,rgba(232,212,168,.07) 12%,transparent 12.5%,transparent 87%,rgba(232,212,168,.07) 87.5%,rgba(232,212,168,.07)),
    linear-gradient(150deg,rgba(232,212,168,.07) 12%,transparent 12.5%,transparent 87%,rgba(232,212,168,.07) 87.5%,rgba(232,212,168,.07)),
    linear-gradient(60deg,rgba(18,134,106,.08) 25%,transparent 25.5%,transparent 75%,rgba(18,134,106,.08) 75%,rgba(18,134,106,.08)),
    linear-gradient(60deg,rgba(18,134,106,.08) 25%,transparent 25.5%,transparent 75%,rgba(18,134,106,.08) 75%,rgba(18,134,106,.08));
  background-size:40px 70px;
  background-position:0 0,0 0,20px 35px,20px 35px,0 0,20px 35px;
  mask-image:radial-gradient(ellipse at 50% 30%,#000 20%,transparent 75%);
  animation:hexDrift 40s linear infinite;
}
@keyframes hexDrift{to{background-position:40px 70px,40px 70px,60px 105px,60px 105px,40px 70px,60px 105px}}
.ambient{position:fixed;inset:0;z-index:0;pointer-events:none}
.orb{position:absolute;border-radius:50%;filter:blur(50px);animation:orbFloat 16s ease-in-out infinite}
.orb-a{width:460px;height:460px;left:-100px;top:5%;background:rgba(13,107,85,.35)}
.orb-b{width:380px;height:380px;right:-80px;top:40%;background:rgba(212,184,122,.14);animation-delay:-6s}
@keyframes orbFloat{50%{transform:translate(16px,-20px) scale(1.05)}}
.node{position:absolute;width:8px;height:8px;border-radius:50%;background:var(--tan-2);box-shadow:0 0 0 6px rgba(212,184,122,.12);animation:nodePulse 3s ease-in-out infinite}
.n1{left:12%;top:28%}.n2{right:18%;top:55%;animation-delay:1s}.n3{left:55%;bottom:18%;animation-delay:2s}
@keyframes nodePulse{50%{transform:scale(1.35);opacity:.7}}

/* Nav */
.vault-nav{
  position:sticky;z-index:40;top:0;border-bottom:1px solid var(--line);
  background:rgba(6,40,32,.88);backdrop-filter:blur(16px);
}
.nav-row{display:flex;align-items:center;gap:22px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.03em}
.brand img{border-radius:10px}
.brand em{
  padding:4px 9px;border:1px solid var(--line);border-radius:999px;
  color:var(--tan);font:800 9px/1 var(--sans);font-style:normal;letter-spacing:.12em;text-transform:uppercase;
}
.vault-nav nav{display:flex;gap:22px;margin-left:auto;color:var(--muted);font:700 12px/1 var(--sans)}
.vault-nav nav a:hover{color:var(--tan)}
.cta,.btn-tan{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 18px;overflow:hidden;border:0;border-radius:12px;
  background:linear-gradient(135deg,var(--tan-3),var(--tan-2));color:var(--ink-dark);
  font:800 12px/1 var(--sans);box-shadow:0 10px 28px rgba(212,184,122,.18);
  transition:transform .2s,box-shadow .25s;
}
.cta:hover,.btn-tan:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(212,184,122,.28)}
.shine{
  position:absolute;inset:0;transform:translateX(-130%) skewX(-18deg);
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent);
  animation:shine 4.8s ease-in-out infinite;
}
@keyframes shine{0%,65%{transform:translateX(-130%) skewX(-18deg)}100%{transform:translateX(180%) skewX(-18deg)}}
.btn-link{display:inline-flex;align-items:center;gap:8px;padding:10px 0;border-bottom:1px solid rgba(232,212,168,.4);font:750 12px/1 var(--sans);color:var(--tan)}
.btn-link.light{color:var(--mint);border-color:rgba(216,240,228,.35)}

/* Hero */
.hero{position:relative;z-index:1;padding:70px 0 40px}
.hero-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:center}
.kicker{
  display:inline-flex;align-items:center;gap:10px;margin:0 0 18px;
  color:var(--tan);font:800 11px/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;
}
.kicker.dark{color:var(--green-2)}
.sigil{display:grid;place-items:center;width:28px;height:28px;border:1px solid currentColor;border-radius:8px;font-size:12px}
.hero-copy h1{margin:0;font-size:clamp(42px,5.4vw,70px);line-height:.98;letter-spacing:-.06em}
.hero-copy h1 em,.crypto-grid h2 em,.final-inner h2 em{
  color:var(--tan);font-family:var(--serif);font-style:italic;font-weight:400;
}
.lede{max-width:540px;margin:22px 0 0;color:var(--muted);font-size:16px;line-height:1.65}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:30px}
.proofs{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 0;padding:0;list-style:none}
.proofs li{
  display:inline-flex;align-items:center;gap:8px;padding:9px 12px;
  border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.04);
  color:var(--muted);font:700 11px/1 var(--sans);
}
.proofs i{width:7px;height:7px;border-radius:50%;background:var(--tan-2);box-shadow:0 0 0 4px rgba(212,184,122,.12)}

/* Vault stage */
.vault-stage{display:grid;gap:14px}
.seal{
  position:relative;min-height:280px;display:grid;place-items:center;
  border:1px solid var(--line);border-radius:28px;overflow:hidden;
  background:radial-gradient(circle at 50% 45%,rgba(18,134,106,.35),rgba(6,40,32,.9) 70%);
  box-shadow:var(--shadow);
}
.seal-ring{position:absolute;border-radius:50%;border:1px solid rgba(232,212,168,.28)}
.seal-ring-a{width:220px;height:220px;animation:spin 28s linear infinite}
.seal-ring-b{width:150px;height:150px;border-style:dashed;border-color:rgba(18,134,106,.5);animation:spin 18s linear infinite reverse}
@keyframes spin{to{transform:rotate(360deg)}}
.seal-core{
  position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;gap:12px;
  width:130px;padding:18px 12px;border:1px solid rgba(232,212,168,.35);border-radius:60px 60px 24px 24px;
  background:linear-gradient(160deg,rgba(13,107,85,.9),rgba(6,50,40,.95));
  box-shadow:0 20px 40px rgba(0,0,0,.3),0 0 0 10px rgba(212,184,122,.06);
}
.seal-core img{max-width:52px;max-height:72px;object-fit:contain}
.seal-core span{color:var(--tan);font:800 8px/1.2 var(--sans);letter-spacing:.1em;text-transform:uppercase;text-align:center}
.chip{
  position:absolute;z-index:3;padding:7px 10px;border:1px solid rgba(232,212,168,.3);
  border-radius:999px;background:rgba(10,40,32,.85);color:var(--tan);font:750 9px/1 var(--mono);
  backdrop-filter:blur(8px);animation:chipFloat 5s ease-in-out infinite;
}
.chip-a{left:18px;top:28px}.chip-b{right:16px;top:42%}.chip-c{left:22px;bottom:24px;animation-delay:1.2s}
@keyframes chipFloat{50%{transform:translateY(-7px)}}

.ledger{
  border:1px solid var(--line);border-radius:20px;background:rgba(8,48,40,.75);
  backdrop-filter:blur(12px);overflow:hidden;box-shadow:var(--shadow);
}
.ledger-top{
  display:flex;justify-content:space-between;align-items:center;padding:14px 16px;
  border-bottom:1px solid var(--line);background:rgba(0,0,0,.15);
}
.ledger-top strong{font-size:12px;letter-spacing:.04em;text-transform:uppercase}
.ledger-top em{color:var(--tan);font:750 9px/1 var(--mono);font-style:normal}
.ledger-rows{padding:10px}
.ledger-row{
  display:grid;grid-template-columns:48px 1fr auto;align-items:center;gap:10px;
  padding:11px 10px;border-bottom:1px solid rgba(232,212,168,.08);
  opacity:0;transform:translateY(8px);
  animation:rowIn .55s ease forwards;animation-delay:calc(.2s + var(--i)*.1s);
}
.ledger-row:last-child{border-bottom:0}
@keyframes rowIn{to{opacity:1;transform:none}}
.ledger-row code{color:var(--tan-2);font:750 10px/1 var(--mono)}
.ledger-row strong{display:block;font-size:12px}
.ledger-row small{color:var(--muted);font-size:10px}
.ledger-row .ok{
  padding:5px 8px;border-radius:999px;background:rgba(232,212,168,.12);
  color:var(--tan);font:800 8px/1 var(--sans);letter-spacing:.08em;text-transform:uppercase;
}
.ledger-foot{
  display:flex;flex-wrap:wrap;gap:14px;padding:12px 16px;border-top:1px solid var(--line);
  color:var(--muted);font:700 10px/1 var(--sans);
}
.ledger-foot span{display:inline-flex;align-items:center;gap:7px}
.pulse{width:7px;height:7px;border-radius:50%;background:var(--tan-2);box-shadow:0 0 0 0 rgba(212,184,122,.4);animation:pulse 2s ease-out infinite}
@keyframes pulse{70%{box-shadow:0 0 0 10px rgba(212,184,122,0)}}

/* Strip */
.strip{position:relative;z-index:1;padding:20px 0 70px}
.strip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.tile{
  padding:24px;border:1px solid var(--line);border-radius:20px;
  background:rgba(10,60,48,.55);transition:transform .25s,border-color .25s,box-shadow .25s;
}
.tile:hover{transform:translateY(-4px);border-color:rgba(232,212,168,.35);box-shadow:0 18px 40px rgba(0,0,0,.2)}
.tile span{color:var(--tan);font:850 11px/1 var(--mono)}
.tile strong{display:block;margin:14px 0 8px;font-size:15px}
.tile p{margin:0;color:var(--muted);font-size:13px;line-height:1.55}
.tile.tan{background:linear-gradient(145deg,var(--tan-3),var(--tan-2));color:var(--ink-dark);border:0}
.tile.tan span{color:var(--green)}.tile.tan p{color:rgba(20,53,44,.7)}

/* Path */
.path-section,.modules,.faq{position:relative;z-index:1;padding:90px 0;background:linear-gradient(180deg,#f6f0e4,#efe6d4);color:var(--ink-dark)}
.section-head h2{margin:10px 0 0;font-size:clamp(32px,4.2vw,50px);letter-spacing:-.05em;line-height:1.05}
.path-tabs{
  position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:34px 0 14px;
  padding:6px;border-radius:16px;border:1px solid var(--line-dark);background:rgba(255,255,255,.55);
}
.path-tabs button{
  position:relative;z-index:1;display:flex;align-items:center;justify-content:center;gap:8px;
  min-height:50px;border:0;border-radius:12px;background:transparent;color:var(--muted-dark);
  font:750 13px/1 var(--sans);cursor:pointer;
}
.path-tabs button span{color:var(--tan-2);font:850 11px/1 var(--mono)}
.path-tabs button.is-active{color:var(--ink-dark)}
.path-indicator{
  position:absolute;z-index:0;top:6px;bottom:6px;left:6px;width:calc(25% - 6px);
  border-radius:12px;background:var(--deep);box-shadow:0 8px 20px rgba(6,40,32,.2);
  transition:transform .35s cubic-bezier(.2,.9,.3,1);
}
.path-tabs button.is-active span{color:var(--tan)}
.path-panel{
  display:grid;grid-template-columns:1fr 1fr;overflow:hidden;border-radius:24px;
  border:1px solid var(--line-dark);background:#fff;box-shadow:0 22px 50px rgba(30,50,40,.1);
}
.path-visual{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:18px;min-height:320px;padding:36px;overflow:hidden;
  background:radial-gradient(circle at 50% 40%,#0f6a54,var(--deep));
  color:var(--ink);
}
.hash-orbit{
  position:absolute;width:200px;height:200px;border:1px solid rgba(232,212,168,.25);border-radius:50%;
  animation:spin 16s linear infinite;
}
.hash-orbit:before,.hash-orbit:after{position:absolute;border-radius:50%;content:""}
.hash-orbit:before{inset:30px;border:1px dashed rgba(232,212,168,.35)}
.hash-orbit:after{inset:64px;border:1px solid rgba(18,134,106,.4)}
.path-glyph{
  position:relative;z-index:2;display:grid;place-items:center;width:74px;height:74px;
  border:4px solid var(--tan-2);border-radius:20px;background:rgba(6,40,32,.9);
  color:var(--tan);font-size:28px;box-shadow:0 0 0 12px rgba(212,184,122,.1);
  transition:transform .3s;
}
.path-panel.is-changing .path-glyph{transform:scale(.9) rotate(-8deg)}
.path-log{
  position:relative;z-index:2;width:min(100%,300px);margin:0;padding:14px;
  border:1px solid rgba(232,212,168,.22);border-radius:12px;background:rgba(0,0,0,.22);
  color:var(--mint);font:12px/1.7 var(--mono);white-space:pre-wrap;
  transition:opacity .22s,transform .22s;
}
.path-panel.is-changing .path-log{opacity:0;transform:translateY(8px)}
.path-copy{display:flex;flex-direction:column;justify-content:center;padding:40px 34px}
.step-label{margin:0 0 10px;color:var(--green-2);font:850 11px/1 var(--sans);letter-spacing:.12em;text-transform:uppercase}
.path-copy h3{margin:0;font-size:28px;letter-spacing:-.04em;line-height:1.15}
.path-copy>p:not(.step-label){margin:14px 0 0;color:var(--muted-dark);font-size:15px;line-height:1.65}
.chain{display:flex;gap:8px;margin-top:28px}
.chain .link{
  flex:1;height:6px;border-radius:99px;background:#e0e8e3;
  transition:background .3s,box-shadow .3s;
}
.chain .link.is-on{background:linear-gradient(90deg,var(--green-2),var(--tan-2));box-shadow:0 0 12px rgba(13,107,85,.25)}

/* Modules */
.mod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:34px}
.mod{
  min-height:220px;padding:22px;border:1px solid var(--line-dark);border-radius:20px;background:#fff;
  transition:transform .25s,box-shadow .25s;
}
.mod:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(30,50,40,.1)}
.mod header{color:var(--green-2);font:800 10px/1 var(--sans);letter-spacing:.1em;text-transform:uppercase}
.mod h3{margin:40px 0 10px;font-size:20px}
.mod p{margin:0;color:var(--muted-dark);font-size:13px;line-height:1.55}
.mod-tan{background:linear-gradient(160deg,var(--green),var(--deep));color:#fff;border:0}
.mod-tan header{color:var(--tan)}.mod-tan p{color:rgba(255,255,255,.62)}

/* Crypto layers */
.crypto-section{position:relative;z-index:1;padding:100px 0;background:var(--deep);color:var(--ink)}
.crypto-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:center}
.crypto-grid .section-head>p:not(.kicker){max-width:420px;margin:16px 0 20px;color:var(--muted);font-size:15px;line-height:1.65}
.crypto-list{display:grid;gap:10px}
.crypto-list button{
  display:grid;grid-template-columns:48px 1fr auto;align-items:center;gap:12px;width:100%;
  padding:20px 18px;border:1px solid var(--line);border-radius:16px;
  background:rgba(255,255,255,.04);color:var(--ink);text-align:left;cursor:pointer;
  transition:transform .22s,border-color .22s,background .22s;
}
.crypto-list button:hover{transform:translateX(6px);border-color:rgba(232,212,168,.4);background:rgba(232,212,168,.06)}
.crypto-list span{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:rgba(232,212,168,.1);color:var(--tan);font:850 11px/1 var(--mono)}
.crypto-list strong{display:block;font-size:16px}
.crypto-list small{color:var(--muted);font-size:11px}
.crypto-list b{color:var(--tan);font-weight:700}

/* Boundary */
.boundary{position:relative;z-index:1;padding:0 0 90px;background:linear-gradient(180deg,#efe6d4,#f6f0e4);color:var(--ink-dark)}
.boundary-card{
  padding:40px;border:1px solid rgba(212,184,122,.45);border-radius:24px;
  background:linear-gradient(135deg,rgba(243,230,196,.7),#fff);
  box-shadow:0 18px 45px rgba(40,50,30,.08);
}
.boundary-card h2{margin:12px 0 24px;max-width:700px;font-size:clamp(28px,3.4vw,40px);letter-spacing:-.04em}
.boundary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.boundary-grid p{
  margin:0;padding:18px;border:1px solid var(--line-dark);border-radius:14px;background:#fff;
  color:var(--muted-dark);font-size:14px;line-height:1.55;
  transition:transform .2s,box-shadow .2s;
}
.boundary-grid p:hover{transform:translateY(-3px);box-shadow:0 12px 24px rgba(30,50,40,.08)}
.boundary-grid strong{color:var(--ink-dark)}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:48px}
.faq-list{border-top:1px solid var(--line-dark)}
.faq-list article{border-bottom:1px solid var(--line-dark)}
.faq-list button{
  display:flex;justify-content:space-between;width:100%;padding:22px 0;border:0;background:none;
  text-align:left;cursor:pointer;font-size:16px;font-weight:720;color:var(--ink-dark);
}
.faq-list button b{color:var(--green-2);font-weight:400;transition:transform .25s}
.faq-list article>div{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s}
.faq-list article>div p{min-height:0;overflow:hidden;margin:0;color:var(--muted-dark);font-size:14px;line-height:1.65}
.faq-list article.is-open>div{grid-template-rows:1fr}
.faq-list article.is-open>div p{padding-bottom:18px}
.faq-list article.is-open button b{transform:rotate(45deg)}

/* Final */
.final{position:relative;z-index:1;overflow:hidden;padding:110px 0;text-align:center;background:var(--deep)}
.final-mesh{
  position:absolute;inset:0;opacity:.2;
  background-image:radial-gradient(circle at 50% 50%,rgba(232,212,168,.2),transparent 55%);
  animation:orbFloat 10s ease-in-out infinite;
}
.final-inner{position:relative;display:flex;flex-direction:column;align-items:center}
.final-inner img{border-radius:16px;margin-bottom:18px}
.final-inner h2{margin:8px 0 12px;font-size:clamp(36px,5vw,56px);letter-spacing:-.05em}
.final-inner>p:not(.kicker){max-width:460px;margin:0 0 26px;color:var(--muted);font-size:16px;line-height:1.6}

.vault-footer{position:relative;z-index:1;padding:24px 0;border-top:1px solid var(--line);background:#031c17;color:rgba(244,239,228,.5)}
.vault-footer .shell{display:flex;align-items:center;gap:18px}
.vault-footer p{margin:0 auto;font:700 10px/1 var(--sans)}
.vault-footer nav{display:flex;gap:14px;font:700 11px/1 var(--sans)}

/* Modal */
.vault-modal{width:min(560px,calc(100% - 24px));padding:0;border:0;border-radius:22px;background:#f6f0e4;color:var(--ink-dark)}
.vault-modal::backdrop{background:rgba(2,20,16,.7);backdrop-filter:blur(8px)}
.vault-modal-panel{position:relative;padding:34px 26px;animation:modalIn .3s cubic-bezier(.2,.9,.3,1)}
@keyframes modalIn{from{opacity:0;transform:translateY(12px) scale(.98)}to{opacity:1;transform:none}}
.vault-modal-panel>button{position:absolute;right:12px;top:12px;width:36px;height:36px;border:1px solid var(--line-dark);border-radius:50%;background:#fff;font-size:20px;cursor:pointer}
.vault-modal-panel h2{margin:0 0 12px;font-size:26px}
.vault-modal-panel p{margin:0;color:var(--muted-dark);font-size:14px;line-height:1.65}
.vault-modal-panel pre{margin:16px 0 0;padding:14px;border-radius:12px;background:var(--deep);color:var(--mint);font:11px/1.65 var(--mono);white-space:pre-wrap}
.vault-modal-panel .kicker{margin-bottom:8px}

.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.9,.3,1),transform .7s cubic-bezier(.2,.9,.3,1);transition-delay:var(--d,0s)}
.reveal.is-visible{opacity:1;transform:none}
:focus-visible{outline:2px solid var(--tan-2);outline-offset:3px}

@media(max-width:980px){
  .vault-nav nav{display:none}.cta{margin-left:auto}
  .hero-grid,.path-panel,.crypto-grid,.faq-grid{grid-template-columns:1fr}
  .mod-grid,.strip-grid,.boundary-grid{grid-template-columns:1fr}
  .path-tabs{grid-template-columns:repeat(2,1fr)}
  .path-indicator{width:calc(50% - 6px)}
}
@media(max-width:640px){
  .shell{width:min(100% - 24px,1180px)}
  .hero-copy h1{font-size:40px}
  .path-tabs{grid-template-columns:1fr}
  .path-indicator{width:calc(100% - 12px)}
  .vault-footer .shell{flex-wrap:wrap}
  .vault-footer p{order:3;width:100%}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
  .ledger-row{opacity:1;transform:none;animation:none}
  .shine{display:none}
}

/* ===== Crypto+ polish & motion layer ===== */
.scanlines{
  position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.04;
  background:repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(0,0,0,.5) 2px,rgba(0,0,0,.5) 3px);
  animation:scanDrift 8s linear infinite;
}
@keyframes scanDrift{to{transform:translateY(3px)}}
.orb-c{width:280px;height:280px;left:35%;top:60%;background:rgba(212,184,122,.1);animation-delay:-10s;filter:blur(50px);position:absolute;border-radius:50%}
.n4{right:30%;top:18%;animation-delay:1.5s}
.spark{
  position:absolute;width:3px;height:3px;border-radius:50%;background:var(--tan);
  box-shadow:0 0 8px rgba(232,212,168,.8);opacity:.0;animation:sparkFly 6s ease-in-out infinite;
}
.s1{left:20%;top:20%;animation-delay:0s}
.s2{left:70%;top:30%;animation-delay:1.2s}
.s3{left:40%;top:70%;animation-delay:2.4s}
.s4{left:85%;top:60%;animation-delay:3.1s}
.s5{left:15%;top:55%;animation-delay:4s}
@keyframes sparkFly{
  0%{opacity:0;transform:translate(0,0) scale(.6)}
  15%{opacity:.9}
  50%{opacity:.5;transform:translate(30px,-40px) scale(1)}
  100%{opacity:0;transform:translate(50px,-80px) scale(.3)}
}
.spin-slow{animation:spin 10s linear infinite}
.bounce-y{display:inline-block;animation:bounceY 1.6s ease-in-out infinite}
@keyframes bounceY{50%{transform:translateY(4px)}}
.title-in{animation:titleIn .9s cubic-bezier(.2,.9,.3,1) both}
@keyframes titleIn{from{opacity:0;transform:translateY(24px) scale(.98);filter:blur(4px)}to{opacity:1;transform:none;filter:none}}

/* Seal upgrades */
.seal{isolation:isolate}
.seal-energy{
  position:absolute;inset:15%;border-radius:50%;
  background:conic-gradient(from 0deg,transparent,rgba(232,212,168,.25),transparent 40%,rgba(18,134,106,.2),transparent 70%);
  animation:spin 8s linear infinite;filter:blur(2px);opacity:.7;
}
.seal-ring-c{position:absolute;width:280px;height:280px;border:1px solid rgba(232,212,168,.12);border-radius:50%;animation:spin 40s linear infinite reverse}
.core-glow{
  position:absolute;inset:-12px;border-radius:70px 70px 28px 28px;
  background:radial-gradient(circle,rgba(232,212,168,.2),transparent 70%);
  animation:corePulse 3s ease-in-out infinite;
}
@keyframes corePulse{50%{opacity:.55;transform:scale(1.08)}}
.seal-core{position:relative;transition:transform .4s cubic-bezier(.2,.9,.3,1)}
.seal:hover .seal-core{transform:scale(1.04)}
.chip{animation:chipFloat 5s ease-in-out infinite, chipIn .7s ease both}
.chip-a{animation-delay:0s,.2s}
.chip-b{animation-delay:1s,.4s}
.chip-c{animation-delay:2s,.6s}
@keyframes chipIn{from{opacity:0;transform:scale(.8)}to{opacity:1}}
.chip.is-active{border-color:var(--tan);box-shadow:0 0 0 4px rgba(232,212,168,.12),0 0 20px rgba(232,212,168,.2)}
.beam{
  position:absolute;z-index:1;height:1px;width:60px;
  background:linear-gradient(90deg,transparent,rgba(232,212,168,.55),transparent);
  opacity:0;animation:beamPulse 3.5s ease-in-out infinite;
}
.beam-a{left:18%;top:42%;transform:rotate(-25deg);animation-delay:.5s}
.beam-b{right:16%;top:55%;transform:rotate(30deg);animation-delay:1.8s}
@keyframes beamPulse{0%,100%{opacity:0;transform:scaleX(.4)}50%{opacity:.8;transform:scaleX(1)}}

/* Ledger polish */
.live-dot{
  display:inline-block;width:6px;height:6px;margin-right:6px;border-radius:50%;
  background:#6fd9a8;box-shadow:0 0 0 0 rgba(111,217,168,.5);animation:livePulse 1.6s ease-out infinite;vertical-align:middle;
}
@keyframes livePulse{70%{box-shadow:0 0 0 8px rgba(111,217,168,0)}}
.ledger-row{transition:background .25s,transform .25s,border-color .25s}
.ledger-row:hover{background:rgba(232,212,168,.06);transform:translateX(4px)}
.ledger-row .ok{
  position:relative;overflow:hidden;
  animation:stampIn .45s cubic-bezier(.2,.9,.3,1) both;
  animation-delay:calc(.45s + var(--i)*.12s);
}
@keyframes stampIn{from{opacity:0;transform:scale(1.4) rotate(-8deg)}to{opacity:1;transform:none}}
.ledger-row .ok:after{
  content:"";position:absolute;inset:0;background:linear-gradient(105deg,transparent 40%,rgba(255,255,255,.35),transparent 60%);
  transform:translateX(-120%);animation:okShine 4s ease-in-out infinite;
  animation-delay:calc(1s + var(--i)*.3s);
}
@keyframes okShine{0%,70%{transform:translateX(-120%)}100%{transform:translateX(120%)}}

/* Tiles / mods */
.tile{position:relative;overflow:hidden}
.tile:before{
  content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent 30%,rgba(232,212,168,.08),transparent 70%);
  transform:translateX(-100%);transition:transform .6s;
}
.tile:hover:before{transform:translateX(100%)}
.mod{position:relative;overflow:hidden}
.mod-mark{
  display:grid;place-items:center;width:42px;height:42px;margin:18px 0 8px;border-radius:12px;
  background:rgba(10,79,64,.08);color:var(--green-2);font-size:18px;
  transition:transform .35s,background .35s,color .35s;
}
.mod:hover .mod-mark{transform:scale(1.1) rotate(-6deg);background:var(--deep);color:var(--tan)}
.mod-tan .mod-mark{background:rgba(255,255,255,.1);color:var(--tan)}
.mod-tan:hover .mod-mark{background:rgba(232,212,168,.2);color:#fff}

/* Path visual */
.hash-orbit-2{width:140px;height:140px;border-style:dashed;animation:spin 10s linear infinite reverse;opacity:.7}
.path-glyph{animation:glyphFloat 4s ease-in-out infinite}
@keyframes glyphFloat{50%{transform:translateY(-6px)}}
.path-panel.is-changing .path-glyph{animation:none}
.path-tabs button{transition:color .2s,transform .2s}
.path-tabs button:hover{transform:translateY(-1px)}
.path-indicator{box-shadow:0 8px 20px rgba(6,40,32,.25),0 0 0 1px rgba(232,212,168,.08)}
.chain .link.is-on{position:relative}
.chain .link.is-on:after{
  content:"";position:absolute;inset:0;border-radius:99px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.45),transparent);
  animation:chainFlow 1.8s linear infinite;
}
@keyframes chainFlow{from{transform:translateX(-100%)}to{transform:translateX(100%)}}

/* Crypto section mesh */
.crypto-section{position:relative;overflow:hidden}
.crypto-mesh{
  position:absolute;inset:0;opacity:.15;pointer-events:none;
  background-image:radial-gradient(circle at 20% 40%,rgba(232,212,168,.25),transparent 40%),
    radial-gradient(circle at 80% 60%,rgba(18,134,106,.3),transparent 45%);
  animation:meshShift 12s ease-in-out infinite alternate;
}
@keyframes meshShift{to{transform:scale(1.08) translate(2%,-2%)}}
.crypto-list button{position:relative;overflow:hidden}
.crypto-list button:before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--tan-2);
  transform:scaleY(0);transform-origin:bottom;transition:transform .3s;
}
.crypto-list button:hover:before{transform:scaleY(1)}
.crypto-list button span{transition:transform .3s,background .3s}
.crypto-list button:hover span{transform:scale(1.08);background:rgba(232,212,168,.2)}

/* Boundary / FAQ */
.boundary-grid p{transition:transform .25s,box-shadow .25s,border-color .25s}
.boundary-grid p:hover{border-color:rgba(212,184,122,.55)}
.faq-list button{transition:color .2s,padding .2s}
.faq-list button:hover{color:var(--green-2)}

/* Final */
.final-ring{
  position:absolute;left:50%;top:50%;width:520px;height:520px;transform:translate(-50%,-50%);
  border:1px solid rgba(232,212,168,.15);border-radius:50%;
  box-shadow:inset 0 0 80px rgba(18,134,106,.15),0 0 60px rgba(232,212,168,.05);
  animation:ringBreathe 6s ease-in-out infinite;
}
@keyframes ringBreathe{50%{transform:translate(-50%,-50%) scale(1.06);opacity:.75}}
.final-mark{animation:markFloat 4s ease-in-out infinite;border-radius:16px}
@keyframes markFloat{50%{transform:translateY(-8px)}}

/* Nav polish */
.vault-nav{transition:background .3s,box-shadow .3s}
.vault-nav.is-scrolled{background:rgba(6,40,32,.95);box-shadow:0 10px 30px rgba(0,0,0,.25)}
.cta,.btn-tan{transition:transform .2s,box-shadow .25s,filter .2s}
.cta:hover,.btn-tan:hover{filter:brightness(1.05)}

/* Modal enter already; enhance */
.vault-modal-panel{animation:modalIn .35s cubic-bezier(.2,.9,.3,1)}
@keyframes modalIn{from{opacity:0;transform:translateY(18px) scale(.96)}to{opacity:1;transform:none}}

/* Reveal stagger helper */
.reveal{transition:opacity .8s cubic-bezier(.2,.9,.3,1),transform .8s cubic-bezier(.2,.9,.3,1)}
.reveal.is-visible{transition-delay:var(--d,0s)}

/* Seal parallax target */
.seal[data-tilt]{transition:transform .15s ease-out}
.vault-stage.is-lit .seal-core{box-shadow:0 20px 40px rgba(0,0,0,.3),0 0 0 12px rgba(212,184,122,.1),0 0 40px rgba(232,212,168,.15)}

@media(prefers-reduced-motion:reduce){
  .scanlines,.spark,.beam,.seal-energy,.core-glow,.title-in,.path-glyph,.final-mark,.final-ring,.crypto-mesh{animation:none!important}
  .chip{animation:none}
  .ledger-row .ok{animation:none}
}

/* ===== F · Clear — explain password managers ===== */
.explain-section{
  position:relative;z-index:1;padding:100px 0 80px;
  background:linear-gradient(180deg,#f6f0e4,#efe6d4);color:var(--ink-dark);
}
.explain-section .section-head{max-width:760px;margin-bottom:36px}
.explain-lede{
  max-width:680px;margin:18px 0 0;color:var(--muted-dark);font-size:18px;line-height:1.65;
}
.explain-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:18px}
.explain-card{
  padding:28px;border:1px solid var(--line-dark);border-radius:22px;background:#fff;
  box-shadow:0 16px 40px rgba(30,50,40,.06);transition:transform .25s,box-shadow .25s;
}
.explain-card:hover{transform:translateY(-4px);box-shadow:0 22px 50px rgba(30,50,40,.1)}
.explain-label{
  display:inline-block;margin-bottom:14px;padding:6px 10px;border-radius:999px;
  font:800 10px/1 var(--sans);letter-spacing:.1em;text-transform:uppercase;
}
.explain-card.problem .explain-label{background:#f3e4d8;color:#8a4b2a}
.explain-card.solution .explain-label{background:rgba(10,79,64,.1);color:var(--green-2)}
.explain-card.solution{border-color:rgba(10,79,64,.18);background:linear-gradient(160deg,#fff,#eef7f2)}
.explain-card h3{margin:0 0 12px;font-size:24px;letter-spacing:-.03em;line-height:1.15}
.explain-card>p{margin:0;color:var(--muted-dark);font-size:14px;line-height:1.65}
.explain-card ul{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:10px}
.explain-card li{
  position:relative;padding-left:22px;color:var(--muted-dark);font-size:13px;line-height:1.45;
}
.explain-card li:before{
  position:absolute;left:0;top:2px;width:12px;height:12px;border-radius:50%;
  content:"";background:rgba(10,79,64,.15);
}
.explain-card.problem li:before{background:#e8c4a8}
.explain-card.solution li:before{background:var(--green-2);box-shadow:0 0 0 3px rgba(10,107,85,.12)}

.explain-steps{
  display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0 22px;
}
.explain-step{
  display:grid;grid-template-columns:42px 1fr;gap:12px;align-items:start;
  padding:20px;border:1px solid var(--line-dark);border-radius:18px;background:rgba(255,255,255,.75);
  transition:transform .25s,border-color .25s;
}
.explain-step:hover{transform:translateY(-3px);border-color:rgba(10,79,64,.25)}
.explain-step>b{
  display:grid;place-items:center;width:38px;height:38px;border-radius:12px;
  background:var(--deep);color:var(--tan);font:850 13px/1 var(--sans);
}
.explain-step strong{display:block;margin-bottom:6px;font-size:14px}
.explain-step p{margin:0;color:var(--muted-dark);font-size:12px;line-height:1.5}

.explain-stax{
  display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:center;
  padding:28px;border-radius:24px;border:1px solid rgba(10,79,64,.15);
  background:linear-gradient(135deg,var(--deep),#06382e);color:#fff;
  box-shadow:0 24px 60px rgba(6,40,32,.2);
}
.explain-stax .kicker.dark{color:var(--tan)}
.explain-stax h3{margin:10px 0 12px;font-size:clamp(24px,3vw,32px);letter-spacing:-.04em;line-height:1.15}
.explain-stax>div>p:not(.kicker){margin:0;color:rgba(255,255,255,.65);font-size:14px;line-height:1.65;max-width:520px}
.explain-points{margin:0;padding:0;list-style:none;display:grid;gap:10px}
.explain-points li{
  padding:14px 16px;border:1px solid rgba(232,212,168,.18);border-radius:14px;
  background:rgba(255,255,255,.05);color:rgba(255,255,255,.7);font-size:13px;line-height:1.4;
  transition:transform .2s,background .2s;
}
.explain-points li:hover{transform:translateX(4px);background:rgba(232,212,168,.08)}
.explain-points strong{display:block;margin-bottom:3px;color:var(--tan);font-size:11px;letter-spacing:.08em;text-transform:uppercase}

@media(max-width:980px){
  .explain-grid,.explain-steps,.explain-stax{grid-template-columns:1fr}
}
@media(max-width:640px){
  .explain-section{padding:80px 0 60px}
  .explain-card h3{font-size:20px}
  .explain-lede{font-size:16px}
}

/* ===== Expanded crypto layer modals ===== */
/* Lock background scroll without freezing body position (avoids jump on close) */
html.layer-modal-open,body.layer-modal-open{overflow:hidden;overscroll-behavior:none}
.vault-modal{
  width:min(720px,calc(100% - 24px));
  max-width:none;
  max-height:calc(100dvh - 24px);
  padding:0;border:0;border-radius:24px;background:#f6f0e4;color:var(--ink-dark);
  overflow:hidden;
  overscroll-behavior:contain;
}
.vault-modal::backdrop{background:rgba(2,20,16,.72);backdrop-filter:blur(8px)}
.vault-modal-panel{
  position:relative;
  display:flex;flex-direction:column;
  max-height:calc(100dvh - 24px);
  overflow:hidden;
  animation:modalIn .35s cubic-bezier(.2,.9,.3,1);
}
.vault-modal-panel>button{
  position:absolute;z-index:4;right:14px;top:14px;
  width:40px;height:40px;border:1px solid var(--line-dark);border-radius:50%;
  background:#fff;font-size:22px;cursor:pointer;
}
.vault-modal-scroll{
  overflow:auto;max-height:calc(100dvh - 24px);
  padding:40px 32px 28px;overscroll-behavior:contain;
  scrollbar-gutter:stable;-webkit-overflow-scrolling:touch;
  scroll-behavior:auto;
}
.vault-modal-scroll .kicker{margin-bottom:10px}
.vault-modal-scroll h2{
  margin:0;padding-right:40px;font-size:clamp(28px,4vw,38px);
  letter-spacing:-.04em;line-height:1.05;
}
.layer-lede{
  margin:14px 0 0!important;color:var(--ink-dark)!important;
  font-size:17px!important;line-height:1.55!important;font-weight:650;
}
.layer-analogy{
  margin:14px 0 0!important;padding:14px 16px;
  border-left:3px solid var(--tan-2);border-radius:0 12px 12px 0;
  background:rgba(232,212,168,.22);color:var(--ink-dark)!important;
  font-size:14px!important;line-height:1.55!important;
}
.layer-analogy strong{color:var(--green-2)}
.layer-section{margin-top:26px}
.layer-section h3{
  margin:0 0 10px;font-size:15px;letter-spacing:.04em;
  text-transform:uppercase;color:var(--green-2);
}
.layer-section>p{margin:0;color:var(--muted-dark);font-size:14px;line-height:1.7}
.layer-steps{display:grid;gap:10px;margin:0;padding:0;list-style:none}
.layer-steps li{
  display:grid;grid-template-columns:36px 1fr;gap:12px;align-items:start;
  padding:14px;border:1px solid var(--line-dark);border-radius:14px;background:#fff;
  color:var(--muted-dark);font-size:13px;line-height:1.55;
}
.layer-steps li>b{
  display:grid;place-items:center;width:32px;height:32px;border-radius:10px;
  background:var(--deep);color:var(--tan);font:850 11px/1 var(--sans);
}
.layer-steps strong{display:block;margin-bottom:4px;color:var(--ink-dark);font-size:13px}
.layer-example{
  margin:0;padding:16px;border-radius:14px;border:1px solid rgba(6,40,32,.2);
  background:var(--deep);color:var(--mint);
  font:12px/1.7 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere;
}
.layer-example mark{
  display:inline-block;margin-top:6px;background:none;color:var(--tan);
  font-weight:800;font-family:var(--sans);font-size:10px;
  letter-spacing:.08em;text-transform:uppercase;
}
.layer-example mark:first-child{margin-top:0}
.layer-caption{margin:8px 0 0!important;color:#7a8b84!important;font-size:11px!important}
.layer-boundary{
  margin:24px 0 0!important;padding:16px 18px;
  border-left:3px solid #c49a3a;border-radius:0 12px 12px 0;
  background:#fff6e2;color:#6a572f!important;font-size:13px!important;line-height:1.65!important;
}
.layer-boundary strong{color:#75500a}
.layer-close-btn{
  display:flex;align-items:center;justify-content:center;gap:10px;
  width:100%;min-height:54px;margin-top:26px;border:0;border-radius:14px;
  background:var(--deep);color:#fff;font:850 13px/1 var(--sans);cursor:pointer;
  transition:filter .2s,transform .2s;
}
.layer-close-btn:hover{filter:brightness(1.08);transform:translateY(-1px)}
.layer-close-btn span{font-size:18px}

.crypto-list button div{display:grid;gap:4px}
.crypto-list button em{
  color:var(--tan);font:750 10px/1 var(--sans);font-style:normal;letter-spacing:.04em;
}

@media(max-width:640px){
  .vault-modal{width:calc(100% - 16px);max-height:calc(100dvh - 16px);border-radius:20px}
  .vault-modal-panel{max-height:calc(100dvh - 16px)}
  .vault-modal-scroll{padding:34px 20px 22px;max-height:calc(100dvh - 16px)}
  .vault-modal-scroll h2{font-size:28px}
  .vault-modal-panel>button{position:fixed;right:18px;top:18px}
  .layer-close-btn{min-height:58px;font-size:15px}
}