:root{
  /* ground */
  --ef-ink:#0B0C0E;
  --ef-ink-2:#15171A;
  --ef-bone:#E9E4D8;
  /* signal */
  --ef-red:#ED2A17;
  /* neutral (non-text use only) */
  --ef-graphite:#4A4E54;
  /* text on dark - all AA (>=4.5:1) on #0B0C0E */
  --ef-on-dark:#E9E4D8;     /* primary ~15:1 */
  --ef-on-dark-2:#ACA79B;   /* body/secondary ~8:1 */
  --ef-on-dark-3:#8E8A80;   /* labels ~5.6:1 */
  /* lines */
  --ef-line:rgba(233,228,216,0.14);
  --ef-line-2:rgba(233,228,216,0.22);
  /* shape */
  --ef-radius:2px;
  --ef-sans:'Bricolage Grotesque','Helvetica Neue',sans-serif;
  --ef-mono:'IBM Plex Mono',ui-monospace,monospace;
  --gutter:clamp(24px,6vw,96px);
  --maxw:1240px;
}
*{box-sizing:border-box;}
html{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;scroll-behavior:smooth;}
body{
  margin:0;background:var(--ef-ink);color:var(--ef-on-dark);
  font-family:var(--ef-sans);line-height:1.5;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
::selection{background:var(--ef-red);color:#fff;}
:focus-visible{outline:2px solid var(--ef-red);outline-offset:3px;}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter);}

/* ---- mark ---- */
.mark{display:block;width:100%;height:100%;}
.mark .k{fill:currentColor;}
.mark .r{fill:var(--ef-red);}
.m{display:inline-flex;align-items:center;justify-content:center;line-height:0;}

/* ---- labels ---- */
.eyebrow{
  display:inline-flex;align-items:center;gap:11px;
  font-family:var(--ef-mono);font-size:12px;font-weight:500;
  letter-spacing:0.18em;text-transform:uppercase;color:var(--ef-on-dark-2);
}
.eyebrow::before{content:'';width:16px;height:2px;background:var(--ef-red);flex:none;}
.num{font-family:var(--ef-mono);font-size:12px;letter-spacing:0.18em;color:var(--ef-red);}

/* ---- buttons ---- */
.btn{
  font-family:var(--ef-sans);font-weight:600;font-size:15px;letter-spacing:0.005em;
  padding:15px 26px;border-radius:var(--ef-radius);border:1px solid transparent;
  cursor:pointer;display:inline-flex;align-items:center;gap:11px;line-height:1;
  transition:filter .15s ease, background .15s ease, border-color .15s ease, color .15s ease;
}
.btn .arr{font-family:var(--ef-mono);font-size:14px;font-weight:500;transition:transform .2s ease;}
.btn:hover .arr{transform:translateX(3px);}
.btn-primary{background:var(--ef-red);color:#fff;}
.btn-primary:hover{filter:brightness(0.9);}
.btn-out{background:transparent;border-color:var(--ef-line-2);color:var(--ef-bone);}
.btn-out:hover{border-color:var(--ef-bone);}
.btn-sm{padding:11px 18px;font-size:13.5px;}

/* ===================== NAV ===================== */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(11,12,14,0.74);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--ef-line);
}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:74px;}
.brand{display:flex;align-items:center;gap:13px;}
.brand .m{width:26px;height:26px;color:var(--ef-bone);}
.brand .wm{font-weight:700;font-size:19px;letter-spacing:0.04em;text-transform:uppercase;}

/* ===================== HERO ===================== */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--ef-line);}
.grid-bg{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(233,228,216,0.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(233,228,216,0.04) 1px,transparent 1px);
  background-size:40px 40px;
  -webkit-mask-image:radial-gradient(120% 90% at 72% 30%,#000 0%,transparent 72%);
  mask-image:radial-gradient(120% 90% at 72% 30%,#000 0%,transparent 72%);
}
.hero .wrap{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,0.88fr);
  gap:clamp(32px,5vw,80px);align-items:center;
  padding-top:clamp(72px,13vh,140px);padding-bottom:clamp(72px,13vh,140px);
}
.hero-copy{max-width:680px;}
.hero h1{
  font-size:clamp(42px,6.8vw,82px);font-weight:800;letter-spacing:-0.035em;
  line-height:0.98;margin:0;text-wrap:balance;
}
.hero .tagline{
  font-size:clamp(20px,2.5vw,28px);font-weight:600;letter-spacing:-0.015em;
  margin:26px 0 0;color:var(--ef-bone);
}
.hero .tagline .sep{color:var(--ef-red);margin:0 4px;font-weight:500;}
.hero .descriptor{
  font-size:clamp(16px,1.4vw,18px);color:var(--ef-on-dark-2);line-height:1.6;
  max-width:50ch;margin:22px 0 0;
}
.hero .creds{display:flex;flex-wrap:wrap;margin:34px 0 0;border-left:2px solid var(--ef-red);}
.hero .cred-item{padding:3px 20px;display:flex;flex-direction:column;gap:5px;border-right:1px solid var(--ef-line);}
.hero .cred-item:first-child{padding-left:18px;}
.hero .cred-item:last-child{border-right:none;}
.hero .cred-k{font-family:var(--ef-mono);font-size:10px;letter-spacing:0.14em;text-transform:uppercase;color:var(--ef-on-dark-3);}
.hero .cred-v{font-size:15px;font-weight:700;color:var(--ef-bone);letter-spacing:-0.01em;}
.hero .cta-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:30px;}
.hero .cta-note{font-family:var(--ef-mono);font-size:11px;letter-spacing:0.12em;text-transform:uppercase;color:var(--ef-on-dark-3);}

/* hero motif - scattered findings assembled into an exploit chain */
.hero-visual{position:relative;align-self:stretch;display:flex;align-items:center;justify-content:center;min-height:300px;}
.motif{width:100%;max-width:420px;aspect-ratio:1;display:block;}
.motif .frame{stroke:var(--ef-line-2);fill:none;}
.motif .node{fill:rgba(233,228,216,0.22);}
.motif .edge{stroke:rgba(233,228,216,0.10);fill:none;stroke-width:1;}
.motif .chain{stroke:var(--ef-red);stroke-width:1.8;fill:none;stroke-linejoin:round;stroke-linecap:round;}
.motif .cnode{fill:var(--ef-bone);stroke:var(--ef-red);stroke-width:1;}
.motif .tgt{stroke:var(--ef-red);stroke-width:1.5;fill:none;}
.motif .tgt-dot{fill:var(--ef-red);}
.motif .lbl{font-family:var(--ef-mono);font-size:10px;letter-spacing:0.14em;fill:var(--ef-on-dark-3);text-transform:uppercase;}
.motif .lbl-sig{fill:var(--ef-red);}
@media (prefers-reduced-motion: no-preference){
  html.js .motif .chain{stroke-dasharray:460;stroke-dashoffset:460;animation:ef-draw 1.5s .25s cubic-bezier(.6,0,.2,1) forwards;}
  html.js .motif .chain-nodes{opacity:0;animation:ef-fade .7s 1s ease forwards;}
}
@keyframes ef-draw{to{stroke-dashoffset:0;}}
@keyframes ef-fade{to{opacity:1;}}

/* ===================== SECTION SCAFFOLD ===================== */
section{position:relative;}
.band{padding:clamp(72px,11vh,128px) 0;border-bottom:1px solid var(--ef-line);}
.band.raised{background:var(--ef-ink-2);}
.sec-head{display:flex;align-items:baseline;gap:16px;margin-bottom:clamp(36px,5vw,60px);}
.sec-head .num{flex:none;}
.sec-head .lbl{font-family:var(--ef-mono);font-size:12px;letter-spacing:0.16em;text-transform:uppercase;color:var(--ef-on-dark-2);}

/* problem / arms race */
.stmt h2{
  font-size:clamp(30px,4.4vw,54px);font-weight:700;letter-spacing:-0.03em;
  line-height:1.04;margin:0;max-width:18ch;text-wrap:balance;
}
.stmt h2 .accent{color:var(--ef-on-dark-2);}
.stmt p{
  font-size:clamp(17px,1.5vw,20px);color:var(--ef-on-dark-2);line-height:1.6;
  max-width:50ch;margin:30px 0 0;
}
.stmt p .em{color:var(--ef-bone);}
.stmt .grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,0.9fr);gap:clamp(32px,5vw,72px);align-items:start;}

/* pillars */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--ef-line);}
.pillar{
  padding:clamp(36px,3.4vw,48px) clamp(28px,2.6vw,40px) clamp(40px,4vw,56px);
  border-right:1px solid var(--ef-line);position:relative;
}
.pillar:last-child{border-right:none;}
.pillar .pnum{font-family:var(--ef-mono);font-size:12px;letter-spacing:0.14em;color:var(--ef-red);}
.pillar h3{font-size:clamp(24px,2.4vw,32px);font-weight:700;letter-spacing:-0.02em;margin:22px 0 0;}
.pillar p{font-size:16px;color:var(--ef-on-dark-2);line-height:1.62;margin:16px 0 0;max-width:34ch;}

/* why different */
.why{padding:clamp(96px,16vh,180px) 0;border-bottom:1px solid var(--ef-line);text-align:center;position:relative;overflow:hidden;}
.why .eyebrow{justify-content:center;}
.why .statement{
  font-size:clamp(28px,4.8vw,60px);font-weight:700;letter-spacing:-0.03em;
  line-height:1.1;margin:28px auto 0;max-width:20ch;text-wrap:balance;
}
.why .statement .q{color:var(--ef-on-dark-3);}
.why .statement .hl{color:var(--ef-red);}

/* built for */
.builtfor .grid{display:grid;grid-template-columns:minmax(0,0.8fr) minmax(0,1.2fr);gap:clamp(32px,5vw,72px);align-items:start;}
.builtfor h2{font-size:clamp(26px,3vw,40px);font-weight:700;letter-spacing:-0.025em;line-height:1.08;margin:0;max-width:14ch;}
.builtfor p{font-size:clamp(17px,1.5vw,20px);color:var(--ef-on-dark-2);line-height:1.62;margin:0;max-width:52ch;}
.builtfor p .restrict{color:var(--ef-bone);}
.tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.tag{
  font-family:var(--ef-mono);font-size:11px;letter-spacing:0.08em;text-transform:uppercase;
  color:var(--ef-on-dark-3);border:1px solid var(--ef-line);border-radius:999px;
  padding:8px 15px;display:inline-flex;align-items:center;gap:9px;
}
.tag::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--ef-graphite);}
.tag.sig::before{background:var(--ef-red);}

/* ===================== CLOSING + CONTACT ===================== */
.closing{position:relative;overflow:hidden;border-bottom:1px solid var(--ef-line);}
.closing .grid-bg{
  -webkit-mask-image:radial-gradient(120% 120% at 30% 50%,#000 0%,transparent 70%);
  mask-image:radial-gradient(120% 120% at 30% 50%,#000 0%,transparent 70%);
}
.closing .wrap{
  position:relative;z-index:1;padding:clamp(80px,14vh,160px) 0;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(40px,6vw,88px);align-items:center;
}
.closing .kick{font-family:var(--ef-mono);font-size:13px;letter-spacing:0.14em;text-transform:uppercase;color:var(--ef-on-dark-2);}
.closing .kick .hl{color:var(--ef-red);}
.closing h2{font-size:clamp(32px,4.4vw,56px);font-weight:700;letter-spacing:-0.03em;line-height:1.02;margin:20px 0 0;text-wrap:balance;}
.closing .sub{font-size:clamp(15px,1.3vw,17px);color:var(--ef-on-dark-2);line-height:1.6;margin:24px 0 0;max-width:42ch;}

.form-card{
  background:var(--ef-ink-2);border:1px solid var(--ef-line);border-radius:var(--ef-radius);
  padding:clamp(28px,3vw,40px);
}
.form-card .fl{font-family:var(--ef-mono);font-size:11px;letter-spacing:0.14em;text-transform:uppercase;color:var(--ef-on-dark-3);margin-bottom:22px;}
.contact-lead{font-size:15.5px;color:var(--ef-on-dark-2);line-height:1.6;margin:0 0 26px;}
.contact-email{
  display:block;font-family:var(--ef-mono);font-size:clamp(18px,2.2vw,24px);letter-spacing:0.01em;
  color:var(--ef-bone);padding-bottom:18px;margin-bottom:24px;border-bottom:1px solid var(--ef-line-2);
  transition:color .15s ease;
}
.contact-email:hover{color:var(--ef-red);}
.form-card .btn-primary{width:100%;justify-content:center;}

/* ===================== FOOTER ===================== */
.footer{padding:48px 0 56px;}
.footer .wrap{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.footer .left{display:flex;flex-direction:column;gap:16px;}
.footer .brand .m{width:20px;height:20px;color:var(--ef-bone);}
.footer .brand .wm{font-size:15px;font-weight:700;letter-spacing:0.04em;text-transform:uppercase;}
.footer .links{display:flex;gap:22px;align-items:center;}
.footer .links a{font-family:var(--ef-mono);font-size:12.5px;letter-spacing:0.04em;color:var(--ef-on-dark-2);transition:color .15s;}
.footer .links a:hover{color:var(--ef-red);}
.footer .right{display:flex;flex-direction:column;align-items:flex-end;gap:12px;text-align:right;}
.footer .copy{font-family:var(--ef-mono);font-size:11px;letter-spacing:0.12em;text-transform:uppercase;color:var(--ef-on-dark-3);}
.footer .fsv{font-family:var(--ef-mono);font-size:10px;letter-spacing:0.1em;color:rgba(233,228,216,0.18);transition:color .15s;}
.footer .fsv:hover{color:var(--ef-on-dark-3);}

/* ---- motion: progressive enhancement, only with JS ---- */
@media (prefers-reduced-motion: no-preference){
  html.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .7s cubic-bezier(.22,.61,.36,1),transform .7s cubic-bezier(.22,.61,.36,1);}
  html.js .reveal.in{opacity:1;transform:none;}
}

/* ---- responsive ---- */
@media(max-width:920px){
  .hero .wrap{grid-template-columns:1fr;}
  .hero-visual{display:none;}
  .stmt .grid,.builtfor .grid,.closing .wrap{grid-template-columns:1fr;}
  .pillars{grid-template-columns:1fr;}
  .pillar{border-right:none;border-bottom:1px solid var(--ef-line);}
  .pillar:last-child{border-bottom:none;}
}
@media(max-width:560px){
  .nav .wrap{height:64px;}
  .brand .wm{font-size:17px;}
  .footer .wrap{flex-direction:column;align-items:flex-start;}
  .footer .right{align-items:flex-start;text-align:left;}
}