*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg:#FBFAF6;
  --card:#F0EEE6;
  --panel:#E8E1D1;
  --parchment:#E9E2CF;
  --ink:#201D18;
  --body:#57534A;
  --faint:#8B867B;
  --line:#E4E0D4;
  --line-warm:#DCD4C0;
  --fig:#EBE9E1;
}

html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--body);
  font-family:"Instrument Sans",ui-sans-serif,sans-serif;
  font-size:17px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}

.wrap{max-width:660px;margin:0 auto;padding:0 22px}

/* header */
header{
  position:sticky;top:0;z-index:10;
  background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.bar{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:20px;padding-bottom:20px;
}
.brand{
  display:flex;align-items:center;gap:11px;
  color:var(--ink);text-decoration:none;
  font-weight:600;font-size:19px;letter-spacing:-0.02em;
}
.brand svg{width:21px;height:21px;flex:none}
.ext{
  font-size:13px;font-weight:500;color:var(--faint);text-decoration:none;
  letter-spacing:0.02em;
}
.ext:hover{color:var(--ink)}
.ext::after{content:" ↗"}

/* article */
.hero{padding:64px 0 10px}
.kicker{
  font-size:13px;color:var(--faint);
  font-variant-numeric:tabular-nums;
  letter-spacing:0.1em;text-transform:uppercase;
}
.hero .title-row{display:flex;align-items:center;gap:18px;margin-top:20px}
.hero .title-row img{width:56px;height:56px;flex:none;border-radius:50%}
.hero .title-row img.square{border-radius:10px}
h1{
  color:var(--ink);
  font-size:clamp(38px,9vw,54px);
  font-weight:600;letter-spacing:-0.035em;line-height:1.06;
}
.dek{
  margin-top:20px;
  color:var(--ink);
  font-size:clamp(20px,4.6vw,24px);
  font-weight:500;letter-spacing:-0.02em;line-height:1.3;
  max-width:24ch;
}
article p{margin-top:18px;max-width:60ch}
article a{color:var(--ink)}

/* numbered sections */
.sec{margin-top:64px}
.sec .num{
  font-size:13px;color:var(--faint);font-variant-numeric:tabular-nums;
  padding-bottom:12px;border-bottom:1px solid var(--line);
}
.sec h2{
  margin-top:22px;
  color:var(--ink);
  font-size:clamp(27px,6.4vw,34px);
  font-weight:600;letter-spacing:-0.03em;line-height:1.12;
}

/* figures */
.fig{
  margin-top:26px;
  background:var(--fig);
  padding:40px 24px;
}
.fig svg{display:block;width:100%;height:auto;max-width:520px;margin:0 auto;overflow:visible}
.fig svg text{font-family:"Instrument Sans",ui-sans-serif,sans-serif}
.figcap{
  margin-top:12px;
  font-size:13px;color:var(--faint);line-height:1.5;max-width:52ch;
}

/* parchment mock panel (grainy, like a paused product shot) */
.panel{
  margin-top:26px;
  background-color:var(--parchment);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
  padding:44px 30px 50px;
}
.panel-label{
  font-size:12px;font-weight:500;color:#8D8264;
  letter-spacing:0.22em;text-transform:uppercase;
}
.panel-rows{margin-top:20px;display:flex;flex-direction:column;gap:9px}
.prow{
  height:48px;
  background:linear-gradient(90deg,#C9C2AE 0%,#8F887A 55%,#4E4A41 100%);
  display:flex;align-items:center;justify-content:flex-end;gap:10px;
  padding:0 16px;
  color:#F2EEE3;font-size:12.5px;font-weight:500;letter-spacing:0.04em;
  box-shadow:0 1px 0 rgba(255,255,255,.45), inset 0 0 0 1px rgba(0,0,0,.04);
}
.prow .pencil{opacity:.75;font-size:12px}
.prow:nth-child(3){opacity:.68}
.prow:nth-child(4){opacity:.4}
.prow:nth-child(5){opacity:.18}

/* footer nav */
.pager{
  margin-top:84px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;
  padding-top:26px;
}
.pager a{
  color:var(--ink);text-decoration:none;font-weight:500;font-size:15px;
  border-bottom:1px solid var(--line-warm);padding-bottom:3px;
}
.pager a:hover{border-color:var(--ink)}
.pager .sub{display:block;font-size:12px;color:var(--faint);font-weight:400;
  letter-spacing:0.08em;text-transform:uppercase;margin-bottom:6px}
footer{
  margin-top:64px;border-top:1px solid var(--line);
  padding:28px 0 44px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--faint);
}
footer .fbrand{display:flex;align-items:center;gap:8px}
footer svg{width:14px;height:14px;opacity:.6}

@media (prefers-reduced-motion:no-preference){
  .hero,article .sec,.pager,footer{
    opacity:0;transform:translateY(14px);
    animation:up .7s cubic-bezier(.22,.61,.36,1) forwards;
  }
  .hero{animation-delay:.05s}
  article .sec:nth-of-type(1){animation-delay:.16s}
  article .sec:nth-of-type(2){animation-delay:.24s}
  article .sec:nth-of-type(3){animation-delay:.32s}
  article .sec:nth-of-type(4){animation-delay:.4s}
  .pager,footer{animation-delay:.48s}
  @keyframes up{to{opacity:1;transform:none}}
}