@font-face{font-family:'Space Grotesk';src:url('/assets/space-grotesk-latin.woff2') format('woff2');font-weight:400 700;font-style:normal;font-display:swap}
@font-face{font-family:'IBM Plex Mono';src:url('/assets/ibm-plex-mono-latin.woff2') format('woff2');font-weight:400 500;font-style:normal;font-display:swap}
:root{
  --paper:#101E36;
  --paper-deep:#0B1730;
  --ink:#F2F6FF;
  --cons:#41639F;
  --cons-soft:#2C4674;
  --glow:#8FB6FF;
  --anno:#7E96C6;
  --grid-fine:rgba(94,130,196,.07);
  --grid-major:rgba(94,130,196,.13);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:
    radial-gradient(120% 90% at 50% 0%, rgba(143,182,255,.05), transparent 55%),
    repeating-linear-gradient(0deg, var(--grid-fine) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(90deg, var(--grid-fine) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(0deg, var(--grid-major) 0 1px, transparent 1px 120px),
    repeating-linear-gradient(90deg, var(--grid-major) 0 1px, transparent 1px 120px),
    linear-gradient(var(--paper), var(--paper-deep));
  color:var(--ink);
  font-family:'Space Grotesk',sans-serif;
  font-weight:400;
  line-height:1.6;
  overflow-x:hidden;
}
.mono{font-family:'IBM Plex Mono',monospace;letter-spacing:.14em;text-transform:uppercase}
a{color:var(--ink)}

/* ---------- sheet chrome ---------- */
.sheet-edge{position:fixed;inset:14px;border:1px solid var(--cons-soft);pointer-events:none;z-index:60}
.sheet-edge::before,.sheet-edge::after,
.sheet-edge span::before,.sheet-edge span::after{
  content:"";position:absolute;width:14px;height:14px;border-color:var(--anno);border-style:solid;border-width:0}
.sheet-edge::before{top:-1px;left:-1px;border-top-width:2px;border-left-width:2px}
.sheet-edge::after{top:-1px;right:-1px;border-top-width:2px;border-right-width:2px}
.sheet-edge span::before{bottom:-1px;left:-1px;border-bottom-width:2px;border-left-width:2px}
.sheet-edge span::after{bottom:-1px;right:-1px;border-bottom-width:2px;border-right-width:2px}

header{
  position:fixed;top:14px;left:14px;right:14px;z-index:50;
  display:flex;justify-content:space-between;align-items:center;
  padding:18px 34px;
  border-bottom:1px solid var(--cons-soft);
  background:linear-gradient(rgba(16,30,54,.88), rgba(16,30,54,.72));
  backdrop-filter:blur(8px);
}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none}
.brand svg{display:block}
.brand-name{font-weight:500;font-size:1.15rem;letter-spacing:-.01em}
.access{font-size:.72rem;color:var(--anno);text-decoration:none;position:relative;padding:6px 2px}
.access::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--glow);transition:right .35s cubic-bezier(.7,0,.2,1)}
.access:hover{color:var(--ink)}
.access:hover::after{right:0}

main{position:relative;z-index:1}
section{position:relative;padding:0 8vw}

/* ---------- hero ---------- */
.hero{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:4vw;padding-top:110px}
.hero-copy .eyebrow{font-size:.7rem;color:var(--anno);margin-bottom:26px}
h1{font-size:clamp(2.6rem,5.4vw,4.6rem);font-weight:700;line-height:1.04;letter-spacing:-.02em}
h1 .draft{color:transparent;-webkit-text-stroke:1px var(--glow);opacity:.85}
.hero-sub{margin-top:30px;max-width:34em;color:#C4D2EE;font-size:1.06rem}
.hero-sub strong{color:var(--ink);font-weight:500}
.hero-cta{margin-top:42px;display:flex;gap:38px;align-items:center}
.stamp{
  position:relative;display:inline-block;padding:15px 30px;
  font-family:'IBM Plex Mono',monospace;font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ink);text-decoration:none;border:1px solid var(--ink);
  transition:background .3s,color .3s;
}
.stamp::before,.stamp::after{content:"";position:absolute;width:9px;height:9px;border:1px solid var(--glow)}
.stamp::before{top:-5px;left:-5px;border-right:0;border-bottom:0}
.stamp::after{bottom:-5px;right:-5px;border-left:0;border-top:0}
.stamp:hover{background:var(--ink);color:var(--paper)}
.quiet-link{font-size:.74rem;color:var(--anno);text-decoration:none;border-bottom:1px solid var(--cons)}
.quiet-link:hover{color:var(--ink);border-color:var(--glow)}
.hero-fig{position:relative}
.hero-fig svg{width:min(46vw,560px);display:block;margin:0 auto;overflow:visible}
.scroll-cue{position:absolute;left:50%;bottom:4vh;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:10px;color:var(--anno);font-size:.62rem}
.scroll-cue .line{width:1px;height:58px;background:repeating-linear-gradient(var(--cons) 0 6px,transparent 6px 12px);animation:cue 2.2s ease-in-out infinite}
@keyframes cue{0%,100%{transform:translateY(0);opacity:.9}50%{transform:translateY(9px);opacity:.5}}

/* ---------- figure sections ---------- */
.fig-section{min-height:92vh;display:grid;grid-template-columns:.9fr 1.1fr;gap:5vw;align-items:center;padding-top:10vh;padding-bottom:10vh}
.fig-section.flip{grid-template-columns:1.1fr .9fr}
.fig-section.flip .fig-copy{order:2}
.fig-section.flip .fig-art{order:1}
.fig-copy .eyebrow{font-size:.68rem;color:var(--anno);margin-bottom:22px;display:flex;align-items:center;gap:14px}
.fig-copy .eyebrow::after{content:"";height:1px;flex:0 0 64px;background:var(--cons)}
h2{font-size:clamp(1.9rem,3.3vw,3rem);font-weight:700;line-height:1.1;letter-spacing:-.015em;margin-bottom:24px}
.fig-copy p{color:#C4D2EE;max-width:32em;font-size:1.02rem}
.fig-copy p + p{margin-top:18px}
.fig-copy em{color:var(--glow);font-style:normal}
.fig-art svg{width:100%;max-width:640px;display:block;margin:0 auto;overflow:visible}

/* stroke drawing */
.draw path,.draw line,.draw circle,.draw ellipse,.draw polyline{
  stroke-dasharray:1;stroke-dashoffset:1;fill:none}
.draw.drawn path,.draw.drawn line,.draw.drawn circle,.draw.drawn ellipse,.draw.drawn polyline{
  stroke-dashoffset:0}
.draw .c{stroke:var(--cons);stroke-width:1.1;transition:stroke-dashoffset .9s cubic-bezier(.6,0,.3,1)}
.draw .k{stroke:var(--ink);stroke-width:3;stroke-linecap:round;stroke-linejoin:round;transition:stroke-dashoffset 1.6s cubic-bezier(.7,0,.2,1)}
.draw .g{stroke:var(--glow);stroke-width:1.4;transition:stroke-dashoffset 1.2s cubic-bezier(.6,0,.3,1)}
.draw .dash{stroke-dasharray:.02 .012!important}
.draw.drawn .dash{stroke-dashoffset:0}
.draw text{font-family:'IBM Plex Mono',monospace;fill:var(--anno);letter-spacing:.12em;opacity:0;transition:opacity .8s ease .9s}
.draw.drawn text{opacity:1}
.draw .node{fill:var(--paper);transition-delay:.5s}
/* stagger */
.draw .d1{transition-delay:.05s}.draw .d2{transition-delay:.25s}.draw .d3{transition-delay:.45s}
.draw .d4{transition-delay:.65s}.draw .d5{transition-delay:.9s}.draw .d6{transition-delay:1.15s}
.draw .d7{transition-delay:1.4s}.draw .d8{transition-delay:1.7s}

/* ---------- method (dimension line) ---------- */
.method{min-height:70vh;display:flex;flex-direction:column;justify-content:center;padding-top:8vh;padding-bottom:8vh}
.method .eyebrow{font-size:.68rem;color:var(--anno);margin-bottom:18px;display:flex;align-items:center;gap:14px}
.method .eyebrow::after{content:"";height:1px;flex:0 0 64px;background:var(--cons)}
.dim-wrap{margin-top:6vh}
.dim-wrap svg{width:100%;overflow:visible}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:3vw;margin-top:34px}
.steps h3{font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--glow);margin-bottom:10px;font-weight:500}
.steps p{font-size:.92rem;color:#B7C6E4}

/* ---------- access ---------- */
.accessS{min-height:78vh;display:grid;grid-template-columns:1fr 1fr;gap:5vw;align-items:center}
 
/* ---------- footer / title block ---------- */
footer{margin:10vh 14px 14px;border-top:1px solid var(--cons-soft)}
.tblock{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;border-left:1px solid var(--cons-soft);border-right:1px solid var(--cons-soft);border-bottom:1px solid var(--cons-soft)}
.tcell{padding:22px 26px;border-right:1px solid var(--cons-soft);font-size:.72rem;color:var(--anno)}
.tcell:last-child{border-right:0}
.tcell b{display:block;color:var(--ink);font-weight:500;font-size:.86rem;margin-top:6px;font-family:'Space Grotesk',sans-serif;letter-spacing:0;text-transform:none}
.tcell a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--cons)}
.tcell a:hover{border-color:var(--glow)}

@media (prefers-reduced-motion:reduce){
  .draw path,.draw line,.draw circle,.draw ellipse,.draw polyline{stroke-dasharray:none;stroke-dashoffset:0;transition:none}
  .draw text{opacity:1;transition:none}
  .scroll-cue .line{animation:none}
}
@media (max-width:900px){
  .hero{grid-template-columns:1fr;padding-top:130px;gap:6vh;min-height:auto;padding-bottom:16vh}
  .hero-fig svg{width:min(78vw,420px)}
  .fig-section,.fig-section.flip{grid-template-columns:1fr;min-height:auto}
  .fig-section.flip .fig-copy{order:1}.fig-section.flip .fig-art{order:2}
  .steps{grid-template-columns:1fr 1fr;gap:26px}
  .accessS{grid-template-columns:1fr;min-height:auto;padding-top:8vh;padding-bottom:8vh}
  .tblock{grid-template-columns:1fr 1fr}
  .tcell{border-bottom:1px solid var(--cons-soft)}
  header{padding:14px 20px}
  section{padding:0 6vw}
}
@media (max-width:560px){
  .sheet-edge{inset:8px}
  header{top:8px;left:8px;right:8px;padding:13px 16px}
  .brand{gap:10px}.brand svg{width:34px;height:34px}.brand-name{font-size:1rem}
  .access{font-size:.62rem}
  section{padding-left:20px;padding-right:20px}
  .hero{padding-top:112px;padding-bottom:13vh}
  .hero-cta{align-items:flex-start;flex-direction:column;gap:24px}
  .stamp{width:100%;text-align:center}
  .scroll-cue{display:none}
  .steps{grid-template-columns:1fr}
  footer{margin-left:8px;margin-right:8px}.tblock{grid-template-columns:1fr}.tcell{border-right:0}
}