/* Layout concept: dark green night, one green accent, Apple-like restraint: big tight headlines, generous space, rounded glass panels, pill buttons. */
@font-face{font-family:"Inter Tight";src:url("fonts/inter-tight-latin-wght-normal.woff2") format("woff2");font-weight:100 900;font-display:swap}
@font-face{font-family:"Inter";src:url("fonts/inter-latin-wght-normal.woff2") format("woff2");font-weight:100 900;font-display:swap}

:root{
  /* colour: single dark world */
  --bg:#070F0C;--surface:#0D1915;--surface-2:#122019;--surface-3:#182A23;
  --hair:rgba(255,255,255,.08);--hair-2:rgba(255,255,255,.14);
  --text:#F2F5F3;--text-2:#B7C4BE;--text-3:#86978F;
  --accent:#3DDC97;--accent-hover:#5BE6A9;--accent-ink:#03120B;--accent-soft:rgba(61,220,151,.12);
  --blue:#6AA8FF;
  /* type */
  --display:"Inter Tight","SF Pro Display",-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
  --body:"Inter","SF Pro Text",-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
  /* shape */
  --wrap:1160px;--r:22px;--r-sm:14px;
  color-scheme:dark
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;background:var(--bg)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover);text-decoration:underline}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
h1,h2,h3{margin:0;font-family:var(--display);color:var(--text);text-wrap:balance}
h1,h2{font-weight:700;letter-spacing:-.035em;line-height:1.04}
h3{font-weight:600;letter-spacing:-.015em;line-height:1.25}
p{margin:0}
strong{color:var(--text);font-weight:600}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:max(24px,env(safe-area-inset-left,0px));padding-right:max(24px,env(safe-area-inset-right,0px))}
.skip{position:absolute;left:-9999px;top:8px;background:var(--surface);color:var(--text);padding:10px 14px;z-index:100;border-radius:8px}
.skip:focus{left:8px}

/* Header: translucent bar */
.site-header{position:sticky;top:0;z-index:50;background:rgba(7,15,12,.72);backdrop-filter:saturate(1.8) blur(20px);-webkit-backdrop-filter:saturate(1.8) blur(20px);border-bottom:1px solid var(--hair)}
.site-header .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;padding-top:12px;padding-bottom:12px}
.brand{display:flex;flex-direction:column;text-decoration:none;color:var(--text);line-height:1.2}
.brand:hover{text-decoration:none;color:var(--text)}
.brand strong{font-family:var(--display);font-weight:650;font-size:17px;letter-spacing:-.01em}
.brand span{font-size:12px;color:var(--text-3)}
.nav{display:flex;flex-wrap:wrap;align-items:center;gap:6px 28px;font-size:14px}
.nav a{color:var(--text-2);padding:6px 0}
.nav a:hover,.nav a[aria-current]{color:var(--text);text-decoration:none}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 26px;border-radius:980px;font-weight:600;font-size:16px;border:1px solid transparent;transition:background .2s,border-color .2s,color .2s,transform .2s}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{background:var(--accent-hover);color:var(--accent-ink)}
.btn-ghost{border-color:var(--hair-2);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent);color:var(--text)}
.nav .btn{min-height:36px;padding:7px 16px;font-size:14px;color:var(--accent-ink)}
@media (max-width:760px){.nav .hide-sm{display:none}}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--bg)}
.hero::before{content:"";position:absolute;left:50%;top:-30%;width:1100px;height:900px;transform:translateX(-50%);background:radial-gradient(closest-side,rgba(61,220,151,.16),rgba(61,220,151,0));pointer-events:none}
.hero .wrap{position:relative;padding-top:104px;padding-bottom:104px;display:flex;flex-direction:column;gap:28px}
.hero-grid{display:flex;flex-wrap:wrap;gap:56px;align-items:center}
.hero-copy{flex:1 1 540px;min-width:0;display:flex;flex-direction:column;gap:26px}
.eyebrow{font-size:14px;font-weight:600;letter-spacing:-.005em;color:var(--accent)}
.hero h1{max-width:820px;font-size:clamp(44px,6.4vw,80px)}
.hero h1 em{font-style:normal;background:linear-gradient(92deg,#8FF0C4,#3DDC97 55%,#1FB777);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lede{max-width:620px;font-size:clamp(18px,1.9vw,21px);line-height:1.5;color:var(--text-2)}
.lede{color:var(--text-2)}
.cta-row{display:flex;flex-wrap:wrap;gap:12px}
.hero-sm::before{top:-55%;height:640px}
.hero-sm .wrap{padding-top:88px;padding-bottom:72px;gap:18px}
.hero-sm h1{font-size:clamp(40px,5.6vw,68px)}

/* Glass panel with stats */
.tote{flex:1 1 360px;max-width:440px;min-width:0;background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));border:1px solid var(--hair-2);border-radius:var(--r);padding:24px 26px 14px;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);box-shadow:0 30px 80px rgba(0,0,0,.45)}
.tote-head{display:flex;justify-content:space-between;align-items:center;font-size:13px;font-weight:600;color:var(--text-3);padding-bottom:10px}
.tote-head .live{display:inline-flex;align-items:center;gap:8px}
.tote-head .live::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.stats{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.stats li{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:18px;padding:16px 0;border-top:1px solid var(--hair)}
.stats span{font-size:14px;line-height:1.4;color:var(--text-2)}
.stats b{font-family:var(--display);font-weight:700;font-size:clamp(28px,3vw,36px);line-height:1;letter-spacing:-.03em;color:var(--text);font-variant-numeric:tabular-nums;white-space:nowrap;text-align:right}

/* Sections */
section[id]{scroll-margin-top:72px}
.section{padding:120px 0 112px}
.section-soft{background:var(--surface)}
.section-head{display:flex;flex-direction:column;gap:16px;max-width:780px;margin-bottom:56px}
.section-head h2{font-size:clamp(36px,4.6vw,56px)}
.section-head p{color:var(--text-2);font-size:19px;line-height:1.5}

/* Services */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.card{background:var(--surface);border:1px solid var(--hair);border-radius:var(--r);padding:32px;display:flex;flex-direction:column;gap:12px;transition:border-color .25s,transform .25s}
.card:hover{border-color:var(--hair-2);transform:translateY(-2px)}
.section-soft .card{background:var(--surface-2)}
.card svg{width:30px;height:30px;stroke:var(--accent)}
.card h3{font-size:21px}
.card p{color:var(--text-2)}
.card .proof{margin-top:auto;padding-top:14px;font-size:13.5px;color:var(--text-3);border-top:1px solid var(--hair)}
.frontier{margin-top:24px;padding:22px 26px;border-radius:var(--r-sm);background:var(--surface);border:1px solid var(--hair);color:var(--text-2);font-size:16px}
.frontier a{color:var(--accent)}

/* Work */
.work{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:20px}
.work article{background:var(--surface-2);border:1px solid var(--hair);border-radius:var(--r);padding:32px;display:flex;flex-direction:column;gap:10px}
.work .tag{font-size:13px;font-weight:600;color:var(--accent)}
.work .num{font-family:var(--display);font-weight:700;font-size:38px;letter-spacing:-.035em;line-height:1.05}
.work h3{font-size:18px}
.work p{color:var(--text-2)}

/* Engage */
.engage{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:20px}
.engage article{background:linear-gradient(160deg,var(--surface-3),var(--surface));border:1px solid var(--hair);border-radius:var(--r);padding:34px;display:flex;flex-direction:column;gap:12px}
.engage .n{font-family:var(--display);font-weight:700;font-size:15px;color:var(--accent)}
.engage h3{font-size:24px}
.engage p{color:var(--text-2)}

/* About */
.about{display:flex;flex-wrap:wrap;gap:56px;align-items:flex-start}
.about figure{margin:0;flex:1 1 300px;max-width:400px}
.about figure img{width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;border-radius:var(--r)}
.about .copy{flex:999 1 460px;min-width:0;max-width:820px;display:flex;flex-direction:column;gap:18px}
.about-name{display:flex;align-items:center;gap:18px}
.about-thumb{width:72px;height:72px;flex:0 0 72px;border-radius:50%;object-fit:cover;padding:3px;background:var(--surface);border:2px solid var(--accent);box-shadow:0 0 24px rgba(61,220,151,.18)}
@media (max-width:520px){.about-thumb{width:60px;height:60px;flex-basis:60px}}
.about h2{font-size:clamp(36px,4.4vw,52px)}
.about .copy p{color:var(--text-2)}
.chips{list-style:none;margin:4px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.chips li{background:var(--surface-3);border:1px solid var(--hair);border-radius:980px;padding:7px 14px;font-size:13.5px;color:var(--text-2)}
.career{list-style:none;margin:12px 0 0;padding:0}
.career li{display:grid;grid-template-columns:120px 1fr;gap:16px;padding:14px 0;border-top:1px solid var(--hair);font-size:15px;color:var(--text-2)}
.career time{font-weight:600;color:var(--text-3);font-variant-numeric:tabular-nums}
.career b{font-weight:600;color:var(--text)}
@media (max-width:520px){.career li{grid-template-columns:1fr;gap:2px}}

/* FAQ */
.faq{max-width:860px;border-top:1px solid var(--hair)}
.faq-item{border-bottom:1px solid var(--hair)}
.faq-item summary{cursor:pointer;list-style:none;padding:22px 44px 22px 0;position:relative;font-family:var(--display);font-weight:600;font-size:19px;letter-spacing:-.01em;line-height:1.35}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:6px;top:17px;font-size:26px;font-weight:300;color:var(--accent)}
.faq-item[open] summary::after{content:"–"}
.faq-item p{padding:0 44px 24px 0;color:var(--text-2)}

/* Legal notice: quiet */
.notice-band{padding:0 0 72px}
.notice{display:flex;gap:14px;align-items:flex-start;background:var(--surface);border:1px solid var(--hair);border-radius:var(--r-sm);padding:20px 22px}
.notice svg{flex:0 0 18px;width:18px;height:18px;stroke:var(--text-3);margin-top:3px}
.notice h2{font-family:var(--body);font-size:14.5px;font-weight:600;letter-spacing:0;color:var(--text);margin-bottom:6px;line-height:1.4}
.notice p{font-size:13.5px;line-height:1.55;color:var(--text-3)}
.notice p+p{margin-top:6px}
.notice a{font-weight:600}
@media (max-width:600px){.notice{flex-direction:column}}

/* Contact */
.contact{position:relative;overflow:hidden;background:var(--surface)}
.contact::before{content:"";position:absolute;right:-200px;bottom:-300px;width:800px;height:700px;background:radial-gradient(closest-side,rgba(61,220,151,.14),rgba(61,220,151,0));pointer-events:none}
.contact .wrap{position:relative;padding-top:112px;padding-bottom:112px;display:flex;flex-wrap:wrap;gap:48px;align-items:center;justify-content:space-between}
.contact .copy{flex:1 1 520px;min-width:0;display:flex;flex-direction:column;gap:18px}
.contact h2{font-size:clamp(36px,4.8vw,60px)}
.contact p{font-size:19px;color:var(--text-2)}
.contact-card{flex:1 1 340px;max-width:440px;background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));border:1px solid var(--hair-2);border-radius:var(--r);padding:30px;display:flex;flex-direction:column;gap:16px}
.contact-card .row{display:flex;flex-direction:column;gap:2px}
.contact-card .label{font-size:12.5px;font-weight:600;color:var(--text-3)}
.contact-card a.line{font-size:18px;font-weight:600;word-break:break-word}
.contact-card .btn{width:100%}

/* Footer */
.site-footer{background:var(--bg);border-top:1px solid var(--hair);color:var(--text-3);font-size:13px}
.site-footer .wrap{padding-top:28px;padding-bottom:36px;display:flex;flex-wrap:wrap;gap:10px 32px;justify-content:space-between}
.site-footer a{color:var(--text-2)}
.site-footer p{max-width:780px;line-height:1.55}
.site-footer p strong{color:var(--text-2)}

/* Plain pages */
.page{padding:88px 0 104px}
.page .wrap{max-width:780px;display:flex;flex-direction:column;gap:18px}
.page h1{font-size:clamp(36px,4.6vw,52px)}
.page h2{font-size:22px;font-weight:600;letter-spacing:-.015em;margin-top:14px}
.page p,.page li{color:var(--text-2)}

/* Fireblocks flow */
.flow{list-style:none;margin:0;padding:0;display:flex;align-items:stretch}
.flow-step{flex:1 1 0;min-width:0;background:var(--surface-2);border:1px solid var(--hair);border-radius:var(--r-sm);padding:24px;display:flex;flex-direction:column;gap:8px}
.flow-step h3{font-size:18px}
.flow-step p{color:var(--text-2);font-size:15px}
.flow-core{background:var(--accent-soft);border-color:rgba(61,220,151,.4)}
.flow-n{font-family:var(--display);font-weight:700;font-size:14px;color:var(--accent)}
.flow-arrow{flex:0 0 96px;display:flex;align-items:center;justify-content:center;position:relative;padding:0 6px}
.flow-arrow::before{content:"";position:absolute;left:8px;right:14px;top:50%;border-top:1.5px solid var(--accent)}
.flow-arrow::after{content:"";position:absolute;right:8px;top:50%;width:9px;height:9px;border-top:1.5px solid var(--accent);border-right:1.5px solid var(--accent);transform:translateY(-50%) rotate(45deg)}
.flow-arrow span{position:relative;z-index:1;background:var(--surface);padding:2px 6px;font-size:12px;font-weight:600;color:var(--accent);text-align:center;line-height:1.3;transform:translateY(-22px);border-radius:6px}
.flow-guard{margin-top:22px;display:flex;gap:16px;align-items:flex-start;background:var(--surface-2);border:1px solid var(--hair);border-radius:var(--r-sm);padding:20px 24px}
.flow-guard svg{flex:0 0 26px;width:26px;height:26px;stroke:var(--accent)}
.flow-guard p{color:var(--text-2)}
@media (max-width:900px){
  .flow{flex-direction:column}
  .flow-arrow{flex:0 0 64px}
  .flow-arrow::before{left:50%;right:auto;top:8px;bottom:16px;border-top:0;border-left:1.5px solid var(--accent)}
  .flow-arrow::after{left:50%;right:auto;top:auto;bottom:10px;transform:translateX(-50%) rotate(135deg);margin-left:1px}
  .flow-arrow span{transform:translateX(64px)}
}

/* Vault diagram (dark) */
.vd{margin:0}
.prose .vd{margin-top:2em}
.vd-svg{width:100%;height:auto;display:block;background:var(--surface-2);border:1px solid var(--hair);border-radius:var(--r)}
.vd figcaption{margin-top:12px;font-size:14.5px;line-height:1.55;color:var(--text-3)}
.vd-zone{fill:rgba(255,255,255,.02);stroke:rgba(255,255,255,.22);stroke-width:1.5;stroke-dasharray:8 7}
.vd-zone-t{font-family:var(--display);font-weight:700;font-size:20px;fill:var(--text);letter-spacing:-.01em}
.vd-zone-s{font-family:var(--body);font-size:13.5px;fill:var(--text-3)}
.vd-core{fill:rgba(61,220,151,.06);stroke:var(--accent);stroke-width:2;stroke-dasharray:12 8}
.vd-core-t{font-family:var(--body);font-weight:600;font-size:14px;fill:var(--accent)}
.vd-box{fill:#16261F;stroke:rgba(255,255,255,.16);stroke-width:1.2}
.vd-corebox{fill:#1C3A2E;stroke:var(--accent);stroke-width:1.2}
.vd-ext{fill:none;stroke:rgba(255,255,255,.22);stroke-width:1.2;stroke-dasharray:4 4}
.vd-t{font-family:var(--body);font-weight:600;font-size:15px;fill:var(--text);text-anchor:middle}
.vd-s{font-family:var(--body);font-size:12.5px;fill:var(--text-3);text-anchor:middle}
.vd-t-inv{fill:var(--text);font-size:17px}
.vd-s-inv{fill:var(--text-2);font-size:13px}
.vd-l{font-family:var(--body);font-size:15px;fill:var(--text-2)}
.vd-auto{fill:none;stroke:var(--accent);stroke-width:3}
.vd-fb{fill:none;stroke:var(--blue);stroke-width:2.2;stroke-dasharray:9 6}
.vd-man{fill:none;stroke:#C9D2CE;stroke-width:1.8;stroke-dasharray:2 5;stroke-linecap:round}
.vd-head-auto{fill:var(--accent)}.vd-head-fb{fill:var(--blue)}.vd-head-man{fill:#C9D2CE}

/* Blog index */
.cat-list{list-style:none;margin:0 0 32px;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.cat-list li{background:var(--surface);border:1px solid var(--hair);border-radius:980px;padding:7px 15px;font-size:13.5px;color:var(--text-2)}
.post-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:20px}
.post-card{background:var(--surface);border:1px solid var(--hair);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:border-color .25s,transform .25s}
.post-card:hover{border-color:var(--hair-2);transform:translateY(-2px)}
.post-card .thumb{width:100%;max-width:100%;height:auto;aspect-ratio:1200/630;object-fit:cover}
.post-card .pc-body{padding:24px 26px 28px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card h2{font-family:var(--display);font-weight:650;font-size:21px;letter-spacing:-.02em;line-height:1.25}
.post-card h2 a{color:var(--text)}
.post-card h2 a:hover{color:var(--accent);text-decoration:none}
.post-card p{color:var(--text-2);font-size:15.5px}
.post-cat{display:block;font-size:13px;font-weight:600;color:var(--accent)}
.post-meta{margin-top:auto;font-size:13px;color:var(--text-3)}

/* Article */
.post-head{background:var(--bg)}
.post-head .wrap{max-width:900px;padding-top:72px;padding-bottom:40px;display:flex;flex-direction:column;gap:16px}
.crumbs{font-size:13px;color:var(--text-3)}
.crumbs a{color:var(--text-2)}
.post-head h1{font-size:clamp(36px,5vw,58px)}
.post-dek{font-size:20px;line-height:1.5;color:var(--text-2)}
.byline{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--text-3)}
.byline img{width:40px;height:40px;border-radius:50%;object-fit:cover}
.post-hero{max-width:900px;margin:0 auto;padding-left:max(24px,env(safe-area-inset-left,0px));padding-right:max(24px,env(safe-area-inset-right,0px))}
.post-hero img{width:100%;max-width:100%;height:auto;aspect-ratio:1200/630;object-fit:cover;border-radius:var(--r);border:1px solid var(--hair)}
.post-layout{display:flex;flex-wrap:wrap;gap:56px;padding-top:56px;padding-bottom:96px;align-items:flex-start}
.post-toc{flex:1 1 220px;max-width:260px;position:sticky;top:96px;font-size:14px}
.post-toc .label{display:block;font-size:12.5px;font-weight:600;color:var(--text-3);margin-bottom:10px}
.post-toc ol{margin:0;padding-left:18px;display:flex;flex-direction:column;gap:8px;color:var(--text-3)}
.post-toc a{color:var(--text-2)}
.post-toc a:hover{color:var(--accent);text-decoration:none}
@media (max-width:900px){.post-toc{position:static;max-width:none}}
.prose{flex:999 1 560px;min-width:0;max-width:700px;font-size:18px;line-height:1.72;color:var(--text-2)}
.prose>*+*{margin-top:1.15em}
.prose h2{font-size:30px;margin-top:1.8em;scroll-margin-top:88px}
.prose h3{font-size:21px;margin-top:1.4em}
.prose ul,.prose ol{padding-left:1.3em}
.prose li+li{margin-top:.4em}
.prose em{color:var(--text-3)}
.prose code{font-size:.9em;background:var(--surface-3);border-radius:6px;padding:2px 6px;color:var(--text)}
.post-sources{margin-top:2.4em;padding-top:1.4em;border-top:1px solid var(--hair)}
.post-sources h2{font-size:18px;margin-top:0}
.post-sources ul{font-size:15px;columns:2;column-gap:32px;margin-top:10px}
@media (max-width:600px){.post-sources ul{columns:1}}
.author-box{margin-top:2em;display:flex;gap:18px;align-items:flex-start;background:var(--surface);border:1px solid var(--hair);border-radius:var(--r);padding:24px}
.author-box img{width:80px;height:80px;border-radius:50%;object-fit:cover;flex:0 0 80px}
.author-box b{font-family:var(--display);font-size:18px;color:var(--text)}
.author-box p{font-size:15.5px;margin-top:4px}
.related{background:var(--surface)}
.related h2{font-size:clamp(30px,3.6vw,40px);margin-bottom:28px}
.post-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.post-list a{display:flex;flex-direction:column;gap:6px;background:var(--surface-2);border:1px solid var(--hair);border-radius:var(--r-sm);padding:22px;color:var(--text);font-family:var(--display);font-weight:600;font-size:18px;letter-spacing:-.015em;line-height:1.3;transition:border-color .2s}
.post-list a:hover{border-color:var(--accent);text-decoration:none}

/* Messaging (WhatsApp, Telegram) */
.msg-row{display:flex;flex-direction:column;gap:10px;padding-top:16px;border-top:1px solid var(--hair)}
.msg-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.msg-tile{display:flex;flex-direction:column;align-items:center;gap:10px;padding:14px 10px 12px;border:1px solid var(--hair);border-radius:var(--r-sm);background:rgba(255,255,255,.03);transition:border-color .2s}
.msg-tile:hover{border-color:var(--accent);text-decoration:none}
.msg-qr{width:96px;height:96px;max-width:100%;border-radius:10px;background:#fff;padding:4px}
.msg-name{font-weight:600;font-size:15px;color:var(--accent);text-align:center;line-height:1.3}
.msg-handle{display:block;font-weight:500;font-size:12.5px;color:var(--text-3)}
.wa-hint{font-size:13px;color:var(--text-3)}