:root {
  --paper: #f3efe6;
  --paper-2: #ebe6d9;
  --ink: #14130f;
  --ink-2: #4a473e;
  --ink-3: #8a8574;
  --rule: #14130f26;
  --accent: #d9432b;
  --ok: #2f6b4f;
  --serif: "Instrument Serif", "Times New Roman", serif;
  --sans: "Geist", "Inter", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --gutter: clamp(20px, 5vw, 72px);
  --max: 1240px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0f0e0b; --paper-2: #17150f; --ink: #efeadb; --ink-2: #b4ae9c;
    --ink-3: #78725f; --rule: #efeadb26; --accent: #ff6a4d; --ok: #6fc29a;
  }
}
:root[data-theme="dark"] {
  --paper: #0f0e0b; --paper-2: #17150f; --ink: #efeadb; --ink-2: #b4ae9c;
  --ink-3: #78725f; --rule: #efeadb26; --accent: #ff6a4d; --ok: #6fc29a;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: clip; }
body {
  background: var(--paper); color: var(--ink); font-family: var(--sans);
  font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 100;
  opacity: .06; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}
a { color: inherit; }
::selection { background: var(--accent); color: var(--paper); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.mono { font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
.serif { font-family: var(--serif); font-weight: 400; letter-spacing: -.02em; }
em { font-family: var(--serif); font-style: italic; }

/* nav */
nav { position: fixed; top: 0; left: 0; right: 0; z-index: 50; mix-blend-mode: difference; color: #f3efe6; }
nav .wrap { display: flex; justify-content: space-between; align-items: center; height: 64px; }
nav a { text-decoration: none; font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
nav .links { display: flex; gap: 28px; }
nav .links a { opacity: .75; transition: opacity .2s; }
nav .links a:hover { opacity: 1; }
.mark { display: flex; align-items: center; gap: 10px; }
.mark svg { display: block; }
@media (max-width: 720px) { nav .links { display: none; } }

/* hero */
.hero { min-height: 100svh; display: flex; flex-direction: column; justify-content: flex-end; padding: 96px 0 28px; position: relative; overflow: hidden; }
#field { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; }
.hero .wrap { position: relative; z-index: 1; width: 100%; }
.hero h1 { font-family: var(--serif); font-weight: 400; font-size: clamp(44px, min(9.5vw, 17vh), 150px); line-height: .92; letter-spacing: -.035em; margin: 20px 0 clamp(20px, 4vh, 36px); max-width: 14ch; }
.hero h1 .line { display: block; overflow: hidden; }
.hero h1 .line span { display: block; transform: translateY(105%); animation: rise 1.1s cubic-bezier(.2,.8,.2,1) forwards; }
.hero h1 .line:nth-child(2) span { animation-delay: .12s; }
.hero h1 .line:nth-child(3) span { animation-delay: .24s; }
@keyframes rise { to { transform: none; } }
.hero h1 em { color: var(--accent); }
.hero-foot { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 40px; align-items: end; border-top: 1px solid var(--rule); padding-top: 24px; }
.hero-foot p { max-width: 54ch; color: var(--ink-2); font-size: clamp(15px, 1.5vw, 18px); line-height: 1.55; }
.badge { display: inline-flex; gap: 10px; align-items: center; border: 1px solid var(--rule); padding: 8px 14px; border-radius: 99px; }
.badge b { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
@media (max-width: 720px) { .hero-foot { grid-template-columns: minmax(0, 1fr); gap: 16px; } .hero-foot .btn-solid { justify-self: start; } }

/* sections */
section { padding: clamp(56px, 8vw, 112px) 0; border-top: 1px solid var(--rule); }
.sec-head { display: grid; grid-template-columns: 200px 1fr; gap: 40px; margin-bottom: clamp(28px, 4vw, 56px); }
.sec-head h2 { font-family: var(--serif); font-weight: 400; font-size: clamp(36px, 5.6vw, 84px); line-height: 1; letter-spacing: -.03em; max-width: 18ch; }
@media (max-width: 800px) { .sec-head { grid-template-columns: 1fr; gap: 16px; } }
.prose { display: grid; grid-template-columns: 200px 1fr; gap: 40px; }
.prose > div { max-width: 62ch; color: var(--ink-2); }
.prose p + p { margin-top: 1.1em; }
.prose strong { color: var(--ink); font-weight: 500; }
@media (max-width: 800px) { .prose { grid-template-columns: 1fr; gap: 12px; } }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .9s ease, transform .9s cubic-bezier(.2,.8,.2,1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero h1 .line span { animation: none; transform: none; }
  html { scroll-behavior: auto; }
}

/* the question */
.question { font-family: var(--serif); font-size: clamp(28px, 4vw, 56px); line-height: 1.12; letter-spacing: -.02em; max-width: 24ch; }
.question span { color: var(--ink-3); }

/* journey */
.journey { border-top: 1px solid var(--ink); }
.step { display: grid; grid-template-columns: 90px 1fr 1.2fr; gap: 40px; padding: 24px 0; border-bottom: 1px solid var(--rule); align-items: start; transition: background .3s, padding .3s; }
.step:hover { background: var(--paper-2); padding-left: 16px; padding-right: 16px; }
.step .n { font-family: var(--serif); font-size: 56px; line-height: 1; color: var(--ink-3); }
.step h3 { font-family: var(--serif); font-weight: 400; font-size: clamp(26px, 3vw, 40px); line-height: 1.05; letter-spacing: -.02em; }
.step h3 + .mono { margin-top: 10px; display: block; }
.step p { color: var(--ink-2); }
.step.wall .n, .step.wall h3 { color: var(--accent); }
.tag { display: inline-block; font-family: var(--mono); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; border: 1px solid var(--rule); padding: 3px 9px; border-radius: 99px; margin: 12px 8px 0 0; color: var(--ink-2); }
@media (max-width: 900px) { .step { grid-template-columns: 1fr; gap: 12px; } .step .n { font-size: 40px; } }

/* why llms fail */
.fails { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--ink); border-left: 1px solid var(--rule); }
.fail { padding: 28px 24px 36px; border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); min-height: 260px; display: flex; flex-direction: column; justify-content: space-between; }
.fail h3 { font-family: var(--serif); font-weight: 400; font-size: 30px; line-height: 1.05; margin: 14px 0 12px; }
.fail p { font-size: 15px; color: var(--ink-2); }
.fail svg { width: 100%; height: 44px; margin-top: 22px; color: var(--ink-3); }
@media (max-width: 1000px) { .fails { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .fails { grid-template-columns: 1fr; } }

.badges { display: flex; gap: 10px; flex-wrap: wrap; }
.pill { display: inline-flex; align-items: center; gap: 10px; padding: 7px 16px 7px 8px; border: 1px solid var(--rule); border-radius: 99px; text-decoration: none; font-size: 14px; color: var(--ink-2); background: color-mix(in srgb, var(--paper) 80%, transparent); backdrop-filter: blur(6px); transition: border-color .2s, transform .2s; }
.pill:hover { border-color: var(--ink); transform: translateY(-1px); }
.pill img { width: 20px; height: 20px; border-radius: 5px; display: block; }
.pill b { color: var(--ink); font-weight: 500; }
.pill i { font-style: normal; color: var(--ink-3); }

#orb { position: absolute; z-index: 0; right: clamp(-80px, -2vw, 0px); top: 50%; width: min(50vw, 66vh, 700px); aspect-ratio: 1; transform: translateY(-58%); pointer-events: none; }
#orb canvas { width: 100% !important; height: 100% !important; display: block; }
@media (max-width: 900px) { #orb { width: 96vw; right: -30vw; top: 34%; opacity: .4; } }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
@media (max-width: 720px) { .hero h1 { font-size: clamp(44px, 14vw, 80px); } }

nav .cta { border: 1px solid currentColor; padding: 7px 14px; border-radius: 99px; opacity: 1 !important; }
.badges .pill.static { cursor: default; }
.pill .logos { display: inline-flex; }
.pill .logos img + img { margin-left: -6px; box-shadow: 0 0 0 2px var(--paper); }
.dot-b { width: 8px; height: 8px; margin: 0 6px 0 4px; border-radius: 50%; background: var(--accent); display: block; }
.badges { margin-bottom: 4px; }
.btn-solid { display: inline-block; background: var(--ink); color: var(--paper); text-decoration: none; padding: 14px 24px; border-radius: 99px; font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; transition: background .2s, transform .2s; white-space: nowrap; }
.btn-solid:hover { background: var(--accent); transform: translateY(-2px); }
.strip { border-top: 1px solid var(--rule); background: var(--paper-2); }
.strip .wrap { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 34px 28px 34px 0; border-right: 1px solid var(--rule); }
.stat + .stat { padding-left: 28px; }
.stat:last-child { border-right: 0; }
.stat b { display: block; font-family: var(--serif); font-weight: 400; font-size: clamp(44px, 5.4vw, 80px); line-height: 1; letter-spacing: -.03em; }
.stat:first-child b { color: var(--accent); }
.stat span { display: block; margin-top: 10px; font-size: 14px; color: var(--ink-2); max-width: 26ch; }
@media (max-width: 900px) { .strip .wrap { grid-template-columns: 1fr 1fr; } .stat { border-right: 0; border-bottom: 1px solid var(--rule); padding: 24px 12px 24px 0 !important; } .stat:nth-child(even) { padding-left: 16px !important; } }
nav .links { align-items: center; }

.strip .wrap { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stat { border-right: 1px solid var(--rule); }
.stat:last-child { border-right: 0; }