:root {
  --ink: #14201b;
  --sheet: #e9ece6;
  --paper: #f5f6f2;
  --olive: #4b5a3a;
  --olive-deep: #2c3626;
  --signal: #e8a317;
  --signal-deep: #b97c06;
  --rule: #b6bdb0;
  --muted: #59635c;

  --f-display: "Chakra Petch", "Arial Narrow", sans-serif;
  --f-body: "Instrument Sans", system-ui, sans-serif;
  --f-mono: "Martian Mono", ui-monospace, monospace;

  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
  --section: clamp(72px, 10vw, 128px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  background: var(--sheet);
  color: var(--ink);
  font: 400 17px/1.6 var(--f-body);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, p, dl, dd, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }

:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; }

.skip {
  position: absolute; left: 16px; top: -48px; z-index: 100;
  background: var(--ink); color: var(--paper); padding: 8px 14px;
}
.skip:focus { top: 12px; }

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

.eyebrow {
  font: 500 11px/1.4 var(--f-mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--olive);
  margin-bottom: 16px;
}
.eyebrow--onDark { color: var(--signal); }

.h2 {
  font: 600 clamp(32px, 4.4vw, 52px)/1.05 var(--f-display);
  letter-spacing: -.01em;
  text-transform: uppercase;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 24px;
  font: 600 15px/1 var(--f-display);
  letter-spacing: .06em; text-transform: uppercase;
  text-decoration: none; border: 1.5px solid transparent; border-radius: 2px;
  cursor: pointer;
  transition: background-color .15s, color .15s, border-color .15s;
}
.btn--signal { background: var(--signal); color: var(--ink); }
.btn--signal:hover { background: var(--signal-deep); }
.btn--ghost { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn--ghost:hover { background: var(--ink); color: var(--paper); }
.btn--sm { min-height: 38px; padding: 0 16px; font-size: 13px; }
.btn--block { width: 100%; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--ink) 94%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid color-mix(in srgb, var(--paper) 14%, transparent);
}
.nav__inner { display: flex; align-items: center; gap: 32px; height: 64px; }
.wordmark { display: block; }
.wordmark img { height: 40px; width: auto; }
.nav nav { margin-left: auto; }
.nav__links { display: flex; gap: 28px; }
.nav__links a {
  font: 500 12px/1 var(--f-mono); letter-spacing: .08em; text-transform: uppercase;
  text-decoration: none; color: color-mix(in srgb, var(--paper) 70%, transparent);
}
.nav__links a:hover { color: var(--paper); }

/* Hero / drawing sheet */
.hero { padding: clamp(20px, 3vw, 36px) 0 0; }
.sheet {
  position: relative;
  background: var(--paper);
  border: 1.5px solid var(--ink);
  outline: 1px solid var(--ink);
  outline-offset: 6px;
  margin: 7px;
  padding: clamp(36px, 4.5vw, 56px) clamp(24px, 5vw, 64px);
  background-image:
    linear-gradient(var(--sheet) 1px, transparent 1px),
    linear-gradient(90deg, var(--sheet) 1px, transparent 1px);
  background-size: 24px 24px;
}
.sheet__zones {
  position: absolute; display: flex; justify-content: space-around;
  font: 400 10px/1 var(--f-mono); color: var(--muted);
}
.sheet__zones--top { top: 8px; left: 0; right: 0; }
.sheet__zones--side { left: 8px; top: 0; bottom: 0; flex-direction: column; align-items: center; }

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}
.hero__title {
  font: 700 clamp(42px, 5.4vw, 74px)/.95 var(--f-display);
  text-transform: uppercase;
  letter-spacing: -.015em;
  margin-bottom: 28px;
}
.hero__accent {
  display: block;
  color: var(--olive);
}
.hero__sub { font-size: clamp(17px, 1.5vw, 19px); color: var(--muted); max-width: 34em; margin-bottom: 32px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; }
.hero__note { font: 400 11px/1.5 var(--f-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--olive); }

.hero__drawing { display: flex; flex-direction: column; gap: 16px; }
.harness { width: 100%; height: auto; overflow: visible; }
.harness .part rect, .harness .part circle { fill: var(--paper); stroke: var(--ink); stroke-width: 1.6; }
.harness .part circle { fill: var(--ink); }
.harness .w { fill: none; stroke-width: 3.2; stroke-linecap: round; }
.harness .w--a { stroke: var(--signal); }
.harness .w--b { stroke: var(--ink); }
.harness .w--c { stroke: var(--olive); }
.harness .sleeve { fill: var(--olive-deep); }
.harness .sleeve__hatch line { stroke: var(--paper); stroke-width: 1; opacity: .35; }
.harness .dim line { stroke: var(--ink); stroke-width: .8; }
.harness .dim__arrow { fill: var(--ink); }
.harness text { font: 500 11px var(--f-mono); fill: var(--ink); letter-spacing: .04em; }
.harness .dim text { font-size: 13px; }
.harness .callout line { stroke: var(--muted); stroke-width: .8; stroke-dasharray: 3 3; }
.harness .callout text { fill: var(--muted); font-size: 10px; }

.titleblock { align-self: flex-end; width: min(100%, 360px); }
.titleblock dl {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border: 1.5px solid var(--ink);
}
.tb { padding: 6px 10px; border-right: 1px solid var(--ink); border-top: 1px solid var(--ink); }
.tb--wide { grid-column: 1 / -1; border-top: 0; border-right: 0; }
.tb:last-child { border-right: 0; }
.tb dt { font: 400 8px/1.4 var(--f-mono); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.tb dd { font: 600 13px/1.3 var(--f-display); text-transform: uppercase; letter-spacing: .03em; }

/* Draw-in on load */
@media (prefers-reduced-motion: no-preference) {
  .harness .w { stroke-dasharray: 520; stroke-dashoffset: 520; animation: draw 1.4s cubic-bezier(.6,0,.2,1) forwards; }
  .harness .w--b { animation-delay: .15s; }
  .harness .w--c { animation-delay: .3s; }
  .harness .sleeve, .harness .sleeve__hatch, .harness .callout, .harness .dim, .titleblock {
    opacity: 0; animation: fade .6s ease forwards;
  }
  .harness .sleeve, .harness .sleeve__hatch { animation-delay: .9s; }
  .harness .dim { animation-delay: 1.2s; }
  .harness .callout { animation-delay: 1.45s; }
  .titleblock { animation-delay: 1.6s; }
}
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fade { to { opacity: 1; } }

/* Trust strip */
.strip { border-bottom: 1px solid var(--rule); margin-top: clamp(32px, 5vw, 56px); }
.strip__list {
  display: grid; grid-template-columns: repeat(5, auto); justify-content: space-between; gap: 12px 24px;
  padding-top: 20px; padding-bottom: 20px;
}
.strip__list li {
  display: flex; align-items: center; gap: 10px;
  font: 500 11px/1.4 var(--f-mono); letter-spacing: .04em; text-transform: uppercase; white-space: nowrap;
}
.strip__list li::before {
  content: ""; width: 8px; height: 8px; background: var(--signal); flex: none;
}

/* Sections */
.section { padding: var(--section) 0; }

.about__grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: clamp(32px, 6vw, 96px); }
.prose p + p { margin-top: 20px; }
.prose { font-size: 18px; color: var(--muted); }
.prose__lead { color: var(--ink); font-weight: 500; font-size: 20px; border-left: 3px solid var(--signal); padding-left: 20px; }

.caps { background: var(--paper); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.caps .h2 { margin-bottom: clamp(36px, 5vw, 56px); }
.caps__grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  border-top: 1.5px solid var(--ink); border-left: 1.5px solid var(--ink);
}
.card {
  padding: clamp(28px, 3.5vw, 44px);
  border-right: 1.5px solid var(--ink); border-bottom: 1.5px solid var(--ink);
  transition: background-color .2s;
}
.card:hover { background: var(--sheet); }
.card__icon { width: 44px; height: 44px; fill: none; stroke: var(--olive); stroke-width: 2; stroke-linejoin: round; margin-bottom: 24px; }
.card__title { font: 600 22px/1.15 var(--f-display); text-transform: uppercase; letter-spacing: .01em; margin-bottom: 12px; }
.card p { color: var(--muted); font-size: 16px; }

.why { background: var(--olive-deep); color: var(--paper); }
.why__grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: clamp(40px, 6vw, 96px); align-items: start; }
.why .h2 { margin-bottom: 40px; }
.points { display: grid; grid-template-columns: 1fr 1fr; gap: 36px 40px; }
.point { border-top: 1px solid color-mix(in srgb, var(--paper) 25%, transparent); padding-top: 18px; }
.point dt { font: 600 19px/1.2 var(--f-display); text-transform: uppercase; margin-bottom: 8px; }
.point dd { color: color-mix(in srgb, var(--paper) 72%, transparent); font-size: 16px; }

.serve { background: var(--ink); padding: clamp(28px, 3.5vw, 40px); border-top: 4px solid var(--signal); }
.serve__title { font: 500 11px/1.4 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--signal); margin-bottom: 20px; }
.serve__list li {
  font: 600 20px/1.25 var(--f-display); text-transform: uppercase;
  padding: 16px 0; border-bottom: 1px solid color-mix(in srgb, var(--paper) 18%, transparent);
}
.serve__list li:last-child { border-bottom: 0; padding-bottom: 0; }

.process .h2 { margin-bottom: clamp(40px, 5vw, 64px); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); counter-reset: step; }
.step {
  counter-increment: step; position: relative;
  padding: 28px 24px 0 0;
  border-top: 1.5px solid var(--ink);
}
.step::before {
  content: "STEP " counter(step, decimal-leading-zero);
  display: block; font: 500 11px/1 var(--f-mono); letter-spacing: .1em; color: var(--olive); margin-bottom: 14px;
}
.step::after {
  content: ""; position: absolute; top: -6px; left: 0;
  width: 10px; height: 10px; background: var(--signal); border: 1.5px solid var(--ink);
}
.step__title { font: 600 21px/1.15 var(--f-display); text-transform: uppercase; margin-bottom: 10px; }
.step p { color: var(--muted); font-size: 16px; }

.cta { background: var(--ink); color: var(--paper); }
.cta__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 96px); align-items: start; }
.cta__title {
  font: 700 clamp(40px, 5.6vw, 72px)/.98 var(--f-display); text-transform: uppercase; letter-spacing: -.01em;
  margin-bottom: 24px;
}
.cta__body { color: color-mix(in srgb, var(--paper) 75%, transparent); font-size: 18px; margin-bottom: 24px; max-width: 30em; }
.cta__alt { font: 400 12px/1.6 var(--f-mono); color: color-mix(in srgb, var(--paper) 60%, transparent); }
.cta__alt a { color: var(--signal); }

.form { display: grid; gap: 16px; background: var(--paper); color: var(--ink); padding: clamp(24px, 3vw, 36px); }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 6px; }
.field span { font: 500 10px/1.4 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.field em { font-style: normal; text-transform: none; letter-spacing: 0; }
.field input, .field select, .field textarea {
  width: 100%; font: 400 16px/1.4 var(--f-body); color: var(--ink);
  background: #fff; border: 1.5px solid var(--rule); border-radius: 2px; padding: 11px 12px;
}
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--ink); outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--signal) 45%, transparent); }
.field [aria-invalid="true"] { border-color: #b3261e; }
.form__error { color: #b3261e; font-size: 14px; }
.form__hint { font-size: 13px; color: var(--muted); text-align: center; }

/* Footer */
.footer { background: var(--ink); color: color-mix(in srgb, var(--paper) 70%, transparent); border-top: 1px solid color-mix(in srgb, var(--paper) 14%, transparent); font-size: 15px; }
.footer__grid { display: grid; grid-template-columns: 1.2fr 1fr 1.2fr; gap: 32px; padding-top: 48px; padding-bottom: 40px; }
.footer__logo { height: 44px; width: auto; margin-bottom: 18px; }
.footer__name { font: 600 13px/1.2 var(--f-display); letter-spacing: .1em; text-transform: uppercase; color: var(--paper); margin-bottom: 6px; }
.footer__label { font: 500 10px/1.4 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--signal); margin-bottom: 10px; }
.footer__col p + p, .footer__col p + address { margin-top: 8px; }
.footer__address { font-style: normal; }
.footer__address a { text-decoration: none; color: inherit; }
.footer__address a:hover { text-decoration: underline; color: var(--paper); }
.footer a { color: var(--paper); }
.footer__legal { padding-bottom: 32px; font: 400 11px/1.5 var(--f-mono); }

/* Responsive */
@media (max-width: 960px) {
  .hero__grid, .about__grid, .why__grid, .cta__grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; row-gap: 40px; }
  .strip__list { grid-template-columns: repeat(2, auto); justify-content: start; }
  .strip__list li { white-space: normal; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__grid > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 720px) {
  .nav__links { display: none; }
  .nav nav { margin-left: 0; }
  .nav__inner { justify-content: space-between; }
  .caps__grid, .points, .form__row, .steps, .footer__grid { grid-template-columns: 1fr; }
  .sheet { margin: 4px; outline-offset: 4px; }
  .sheet__zones { display: none; }
  .titleblock { align-self: stretch; width: 100%; }
  .strip__list { grid-template-columns: 1fr; }
}

/* Interactive figures (vendor/figures.js). Plate = the colour the figure sits on. */
.fig {
  --hairline-plate: var(--paper);
  --hairline-hi: var(--signal);
  --hairline-edge: var(--ink);
  --hairline-mid: var(--olive);
  --hairline-lo: var(--rule);
  width: 100%;
  aspect-ratio: 5 / 4;
}
.fig--card { margin-bottom: 24px; max-width: 320px; }
.fig--hero { max-width: 560px; margin-inline: auto; }
.card:hover .fig { --hairline-plate: var(--sheet); }