:root {
  color-scheme: light;
  --paper: #f2eee6;
  --paper-raised: #fbf8f1;
  --ink: #14201e;
  --muted: #5d6865;
  --line: #aab2ab;
  --line-strong: #33443f;
  --green: #006a55;
  --coral: #c96f55;
  --violet: #5d4bc2;
  --pink: #bd3f75;
  --blue: #3974d7;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scrollbar-color: var(--green) var(--paper);
  scrollbar-width: thin;
}

*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-track { background: var(--paper); }
*::-webkit-scrollbar-thumb { background: var(--green); border: 2px solid var(--paper); }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-size: 16px;
  line-height: 1.55;
}

a { color: inherit; }

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 20;
  padding: 9px 12px;
  background: var(--ink);
  color: white;
  transform: translateY(-160%);
}

.skip-link:focus { transform: none; }

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 40px));
  margin: 20px auto 0;
  padding: 12px 14px;
  background: var(--paper-raised);
  border: 1px solid var(--line-strong);
}

.brand {
  display: inline-flex;
  min-height: 40px;
  gap: 10px;
  align-items: center;
  font-weight: 800;
  letter-spacing: -.02em;
  text-decoration: none;
}

.brand img { display: block; }

nav { display: flex; align-items: center; gap: 4px; }

nav a {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  padding: 8px 12px;
  color: var(--muted);
  font-size: .88rem;
  font-weight: 700;
  text-decoration: none;
}

nav a:hover, nav a:focus-visible { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }

nav .nav-strong { color: var(--paper-raised); background: var(--ink); }

main, footer { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, .75fr);
  gap: clamp(28px, 6vw, 82px);
  align-items: center;
  min-height: 670px;
  padding: 78px 0 64px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--green);
  font: 800 .72rem/1.2 ui-monospace, "Cascadia Code", Consolas, monospace;
  letter-spacing: .14em;
  text-transform: uppercase;
}

h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(3.45rem, 7.5vw, 6.8rem);
  line-height: .9;
  letter-spacing: -.075em;
}

h1 em { color: var(--green); font-style: normal; }

.hero-lead {
  max-width: 650px;
  margin: 32px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
}

.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 10px 17px;
  border: 1px solid var(--line-strong);
  background: var(--paper-raised);
  font-weight: 800;
  text-decoration: none;
}

.button:hover, .button:focus-visible { outline: 3px solid var(--coral); outline-offset: 2px; }
.button.primary { color: white; background: var(--ink); }

.signal-card {
  padding: 24px;
  background: var(--paper-raised);
  border: 1px solid var(--line-strong);
  transform: rotate(1.2deg);
}

.signal-head, .terminal-head {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font: 800 .66rem/1 ui-monospace, "Cascadia Code", Consolas, monospace;
  letter-spacing: .12em;
}

.signal-head strong { color: var(--green); }
.signal-value { margin: 28px 0 11px; font: 800 3rem/1 ui-monospace, "Cascadia Code", Consolas, monospace; letter-spacing: -.08em; }
.signal-value small { font-size: .9rem; letter-spacing: .05em; }

.signal-strip { display: flex; height: 7px; margin-bottom: 21px; overflow: hidden; }
.signal-strip i { display: block; }
.signal-strip .codex { width: 26%; }
.signal-strip .claude { width: 46%; }
.signal-strip .grok { width: 15%; }
.signal-strip .open { width: 12%; }
.signal-strip .anti { width: 1%; }
.codex { background: var(--green); }
.claude { background: var(--coral); }
.grok { background: var(--violet); }
.open { background: var(--pink); }
.anti { background: var(--blue); }

.signal-list { margin: 0; padding: 0; list-style: none; }
.signal-list li { display: flex; justify-content: space-between; padding: 11px 0; border-top: 1px solid #d7d9d1; }
.signal-list span { display: inline-flex; align-items: center; gap: 9px; }
.dot { width: 8px; height: 8px; border-radius: 50%; }
.signal-list strong { font: 700 .83rem ui-monospace, "Cascadia Code", Consolas, monospace; }
.signal-note { margin: 15px 0 0; color: var(--muted); font: 700 .68rem ui-monospace, "Cascadia Code", Consolas, monospace; text-transform: uppercase; }

.measurements {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line-strong);
  background: var(--paper-raised);
}

.measurements article { padding: 26px; border-right: 1px solid var(--line); }
.measurements article:last-child { border-right: 0; }
.measurements strong { display: block; font: 800 2.6rem/1 ui-monospace, "Cascadia Code", Consolas, monospace; }
.measurements span { display: block; margin-top: 7px; color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; }

.section {
  padding: 116px 0;
  border-bottom: 1px solid var(--line-strong);
}
.section-heading { display: grid; grid-template-columns: 1fr 1fr; column-gap: 60px; align-items: end; margin-bottom: 46px; }
.section-heading .eyebrow { grid-column: 1 / -1; }

h2 { margin: 0; font-size: clamp(2.35rem, 5vw, 4.7rem); line-height: .98; letter-spacing: -.055em; }
.section-heading > p:last-child { margin: 0; color: var(--muted); font-size: 1.04rem; }

.capture-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; align-items: start; }
.capture { margin: 0; padding: 12px; background: var(--paper-raised); border: 1px solid var(--line-strong); }
.capture img { display: block; width: 100%; height: auto; border: 1px solid var(--line); }
.capture-tall img { aspect-ratio: 5 / 6; object-fit: contain; background: white; }
.capture figcaption { display: grid; grid-template-columns: 28px 1fr auto; align-items: baseline; gap: 8px; padding: 12px 4px 2px; }
.capture figcaption b { color: var(--green); font: 800 .72rem ui-monospace, "Cascadia Code", Consolas, monospace; }
.capture figcaption span { font-weight: 800; }
.capture figcaption small { color: var(--muted); }

.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line-strong); background: var(--paper-raised); }
.principle-grid article { min-height: 250px; padding: 27px; border-right: 1px solid var(--line); }
.principle-grid article:last-child { border-right: 0; }
.principle-grid .index { color: var(--green); font: 800 .75rem ui-monospace, "Cascadia Code", Consolas, monospace; }
.principle-grid h3 { margin: 58px 0 12px; font-size: 1.35rem; }
.principle-grid p { margin: 0; color: var(--muted); }

.provider-line { display: grid; grid-template-columns: 180px 1fr; gap: 20px; margin-top: 20px; padding: 24px; border: 1px solid var(--line-strong); background: var(--ink); color: var(--paper-raised); }
.provider-line > span { color: #b8c4c0; font: 800 .7rem ui-monospace, "Cascadia Code", Consolas, monospace; letter-spacing: .1em; text-transform: uppercase; }
.provider-line ul { display: flex; flex-wrap: wrap; gap: 8px 20px; margin: 0; padding: 0; list-style: none; }
.provider-line li::before { content: "+"; margin-right: 6px; color: #72d3b9; }

.build { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: center; }
.build > div:first-child > p:last-child { max-width: 450px; color: var(--muted); }
.terminal { min-width: 0; border: 1px solid var(--line-strong); background: #101715; color: #e7eee9; }
.terminal-head { padding: 13px 16px; border-bottom: 1px solid #3d4a46; color: #aab8b4; }
.terminal pre { margin: 0; padding: 25px; overflow-x: auto; font: 700 .9rem/1.9 ui-monospace, "Cascadia Code", Consolas, monospace; }
.terminal code span { color: #72d3b9; }

footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 30px;
  padding: 44px 0 62px;
  align-items: start;
}

footer strong { font-size: 1.2rem; }
footer p { margin: 5px 0 0; color: var(--muted); }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; font-weight: 800; }
.footer-links a { display: inline-flex; min-height: 40px; align-items: center; }
.footer-links a:hover, .footer-links a:focus-visible { color: var(--green); }
.license { grid-column: 1 / -1; font: 700 .7rem ui-monospace, "Cascadia Code", Consolas, monospace; text-transform: uppercase; letter-spacing: .1em; }

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --paper: #111816;
    --paper-raised: #18211f;
    --ink: #ecf2ee;
    --muted: #b3bfbb;
    --line: #34413d;
    --line-strong: #91a29c;
    --green: #6fd2b8;
  }
  .button.primary, .provider-line { color: #101715; background: #e7eee9; }
  .provider-line > span { color: #40544e; }
  .provider-line li::before { color: #087f67; }
  .capture-tall img { background: #f7f7f7; }
  .signal-list li { border-top-color: #3c4844; }
}

@media (max-width: 820px) {
  .masthead { width: min(100% - 24px, 1180px); margin-top: 12px; }
  nav a:not(.nav-strong) { display: none; }
  main, footer { width: min(100% - 24px, 1180px); }
  .hero { grid-template-columns: 1fr; min-height: auto; padding: 70px 0 48px; }
  h1 { font-size: clamp(3.15rem, 16vw, 5.6rem); }
  .signal-card { max-width: 520px; transform: none; }
  .measurements { grid-template-columns: repeat(2, 1fr); }
  .measurements article:nth-child(2) { border-right: 0; }
  .measurements article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .section { padding: 82px 0; }
  .section-heading, .build { grid-template-columns: 1fr; gap: 24px; }
  .principle-grid { grid-template-columns: 1fr; }
  .principle-grid article { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .principle-grid article:last-child { border-bottom: 0; }
  .principle-grid h3 { margin-top: 24px; }
  .provider-line { grid-template-columns: 1fr; }
}

@media (max-width: 570px) {
  .capture-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .capture { padding: 6px; }
  .capture figcaption { grid-template-columns: 18px 1fr; gap: 4px; padding-top: 8px; font-size: .75rem; }
  .capture figcaption small { display: none; }
  .measurements article { padding: 19px; }
  .measurements strong { font-size: 2rem; }
  .terminal pre { white-space: pre-wrap; overflow-wrap: anywhere; }
  footer { grid-template-columns: 1fr; }
  .license { grid-column: auto; }
}

@media (max-width: 340px) {
  .capture-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}