:root{
  --bg:#f4f5f7; --surface:#ffffff; --sunk:#eceef1;
  --ink:#1f2328; --ink-2:#4b525c; --muted:#7c8490; --faint:#a3a9b2;
  --ph:#a7adb5; --ph-2:#dfe2e6;
  --line:#e3e6ea; --line-2:#d6dade;
  --sans:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.7,.2,1);
  --r:18px;
  --shadow:0 1px 2px rgba(16,24,40,.04),0 8px 24px rgba(16,24,40,.06);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none}
:focus-visible{outline:2px solid var(--ink-2);outline-offset:3px;border-radius:6px}
.wrap{width:min(1080px,100% - 48px);margin-inline:auto}
.narrow{width:min(720px,100% - 48px)}
[hidden]{display:none!important}
.center{text-align:center}

/* Nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:20;border-bottom:1px solid transparent;transition:background .3s,border-color .3s}
.nav.scrolled{background:rgba(244,245,247,.85);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom-color:var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:15px;letter-spacing:-.01em}
.brand img,.footer-brand img{border-radius:50%}
.nav-links{display:flex;gap:28px}
.nav-links a{font-size:14px;color:var(--muted);transition:color .2s}
.nav-links a:hover{color:var(--ink)}

/* Type */
h1,h2,h3{margin:0;letter-spacing:-.025em;color:var(--ink)}
h1{font-size:clamp(38px,5.4vw,56px);font-weight:700;line-height:1.05}
h2{font-size:clamp(30px,4vw,42px);font-weight:600;line-height:1.12}
h3{font-size:18px;font-weight:600;letter-spacing:-.01em}
.label{margin:0 0 12px;font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

/* Hero / profile card */
.hero{padding:104px 0 40px}
.profile{max-width:640px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);overflow:hidden}
.cover{height:clamp(120px,22vw,176px);background:
  linear-gradient(180deg,#e7e9ec,#dcdfe3);position:relative}
.cover::after{content:"";position:absolute;inset:0;opacity:.55;
  background-image:linear-gradient(45deg,rgba(255,255,255,.35) 25%,transparent 25%,transparent 50%,rgba(255,255,255,.35) 50%,rgba(255,255,255,.35) 75%,transparent 75%);
  background-size:14px 14px}
.profile-body{padding:0 clamp(22px,5vw,40px) clamp(28px,5vw,40px)}
.avatar-row{position:relative;z-index:1;display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin-top:calc(clamp(112px,20vw,148px) / -2);margin-bottom:18px}
.avatar{width:clamp(112px,20vw,148px);height:auto;aspect-ratio:1;border-radius:50%;border:5px solid var(--surface);box-shadow:0 2px 10px rgba(16,24,40,.08);background:var(--ph-2)}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:500;color:var(--muted);background:var(--sunk);border:1px solid var(--line);
  padding:6px 12px;border-radius:999px;white-space:nowrap}
.pill::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--faint)}
.handle{margin:6px 0 0;font-family:var(--mono);font-size:15px;color:var(--muted)}
.fields{margin:26px 0 0;border-top:1px solid var(--line)}
.fields>div{display:grid;grid-template-columns:120px 1fr;gap:16px;padding:13px 0;border-bottom:1px solid var(--line)}
.fields dt{font-size:13px;color:var(--muted);font-weight:500}
.fields dd{margin:0;font-size:15px;color:var(--ink)}
.fields dd.empty{color:var(--faint);font-style:italic}
.skeleton{margin:24px 0 0;display:grid;gap:10px}
.skeleton span{display:block;height:10px;border-radius:6px;background:linear-gradient(90deg,var(--sunk) 0%,#f6f7f9 50%,var(--sunk) 100%);background-size:200% 100%;animation:shimmer 2.4s ease-in-out infinite}
.skeleton span:nth-child(1){width:92%}.skeleton span:nth-child(2){width:78%}.skeleton span:nth-child(3){width:46%}
@keyframes shimmer{0%{background-position:100% 0}100%{background-position:-100% 0}}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.note{margin:14px 0 0;font-size:13px;color:var(--muted)}
.socials{display:flex;gap:18px;margin-top:16px}
.socials a{font-size:14px;color:var(--ink-2);border-bottom:1px solid var(--line-2)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;font:600 14px/1 var(--sans);letter-spacing:-.005em;
  border-radius:999px;cursor:pointer;transition:background .2s,color .2s,border-color .2s,transform .2s;border:1px solid transparent;user-select:none}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000;color:#fff;transform:translateY(-1px)}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--ph);background:#fafbfc}
.btn.is-disabled,.btn:disabled{cursor:not-allowed;opacity:.45;transform:none}
.btn-dark.is-disabled:hover{background:var(--ink)}
.btn:disabled:hover{background:var(--surface);border-color:var(--line-2)}

/* Sections */
.section{padding:clamp(72px,10vw,120px) 0}
.head{text-align:center;max-width:620px;margin:0 auto 44px}
.sub{color:var(--muted);margin:14px auto 0}
#about{text-align:center}
#about h2{margin-bottom:26px}
.prose p{color:var(--ink-2);margin:0 0 18px;font-size:17px}
.prose .lead{font-size:clamp(20px,2.4vw,23px);line-height:1.5;color:var(--ink);font-weight:500;letter-spacing:-.015em;margin-bottom:24px}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.step{padding:28px}
.num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--sunk);color:var(--ink-2);
  font:600 14px/1 var(--mono);margin-bottom:18px}
.step h3{margin-bottom:8px}
.step p{margin:0;color:var(--ink-2);font-size:15px}
.step a{border-bottom:1px solid var(--line-2)}
.step a:hover{border-color:var(--ink)}

/* Contract */
.ca-card{padding:24px}
.ca-card.flash{animation:flash 1.4s var(--ease)}
@keyframes flash{0%{box-shadow:0 0 0 0 rgba(31,35,40,.18)}100%{box-shadow:0 0 0 14px rgba(31,35,40,0)}}
.ca-meta{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.ca-chain{font-weight:600}
.ca-explorer{margin-left:auto;font-size:13px;color:var(--muted)}
.ca-explorer:hover{color:var(--ink)}
.ca-row{display:flex;gap:10px;align-items:stretch}
.ca-value{flex:1;min-width:0;display:flex;align-items:center;padding:12px 16px;border-radius:12px;background:var(--sunk);border:1px dashed var(--line-2);
  font:400 14px/1.4 var(--mono);color:var(--muted);overflow-wrap:anywhere}
.ca-value.is-live{color:var(--ink);border-style:solid;user-select:all}
.btn-copy{flex:0 0 auto}
.fine{margin:18px 0 0;font-size:13px;color:var(--muted)}

/* Footer */
.footer{padding:48px 0 64px;border-top:1px solid var(--line);text-align:center}
.footer-brand{display:flex;align-items:center;justify-content:center;gap:10px;font-weight:600}
.footer-brand em{font-style:normal;font-family:var(--mono);font-size:13px;color:var(--muted);font-weight:400}
.disclaimer{margin:18px auto 0;color:var(--muted);font-size:13px;line-height:1.7}
.fineprint{margin:14px 0 0;font-size:12px;color:var(--faint)}

/* Toast */
.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,16px);opacity:0;pointer-events:none;z-index:50;max-width:calc(100% - 32px);text-align:center;
  background:var(--ink);color:#fff;padding:11px 18px;border-radius:999px;font-size:13px;font-weight:500;box-shadow:0 10px 30px rgba(16,24,40,.2);transition:all .3s var(--ease)}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* Reveal */
.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.js .reveal.in{opacity:1;transform:none}
.step.reveal:nth-child(2){transition-delay:.08s}.step.reveal:nth-child(3){transition-delay:.16s}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.js .reveal{opacity:1;transform:none;transition:none}.skeleton span,.ca-card.flash{animation:none}}

@media (max-width:820px){.steps{grid-template-columns:1fr}.nav-links{display:none}}
@media (max-width:520px){
  .wrap,.narrow{width:calc(100% - 32px)}
  .hero{padding:84px 0 24px}
  .fields>div{grid-template-columns:96px 1fr}
  .cta-row{flex-direction:column}
  .btn{width:100%}
  .ca-row{flex-direction:column}
  .pill{font-size:11px;padding:5px 10px}
}

/* Multi-chain contract rows */
.ca-card{padding:0}
.ca-item{padding:22px 24px}
.ca-item+.ca-item{border-top:1px solid var(--line)}
@media (max-width:520px){.ca-item{padding:20px 18px}}