/* The public brief (/brief): one static page, no script. Light and dark follow the reader's system.
   A ledger look: warm paper, ink rules, a serif display face, monospaced section numbers and labels. */
:root {
  --paper: #f6f4ee;
  --band: #eeebe2;
  --card: #fffdf8;
  --ink: #16191a;
  --ink2: #4b5254;
  --rule: #d8d3c6;
  --green: #0b5d58;
  --green-deep: #08443f;
  --green-soft: #dcebe7;
  --on-green: #ffffff;
  --person: #9a4a17;
  --person-soft: #f4e6da;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "Geist", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --pad: clamp(20px, 4vw, 40px);
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #101314;
    --band: #161a1b;
    --card: #1b2021;
    --ink: #ecebe6;
    --ink2: #a6adab;
    --rule: #2d3435;
    --green: #5fbfb3;
    --green-deep: #93d8ce;
    --green-soft: #15302d;
    --on-green: #06201e;
    --person: #e39462;
    --person-soft: #33231a;
  }
}

/* Self-hosted typefaces, all SIL Open Font License 1.1 (see THIRD-PARTY-NOTICES.md):
   Geist (body), Newsreader (display), Geist Mono (labels and numbers). */
@font-face {
  font-family: "Geist";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("fonts/geist-latin-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308,
    U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Geist";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("fonts/geist-latin-ext-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329,
    U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Newsreader";
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
  src: url("fonts/newsreader-latin-opsz-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308,
    U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Newsreader";
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
  src: url("fonts/newsreader-latin-ext-opsz-normal.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329,
    U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Geist Mono";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("fonts/geist-mono-latin-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308,
    U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Geist Mono";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("fonts/geist-mono-latin-ext-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329,
    U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* base */
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--green);
}
a:hover {
  color: var(--green-deep);
}
a:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}
::selection {
  background: var(--green-soft);
}
h1,
h2,
h3,
p,
ul,
ol,
dl,
dd,
figure,
blockquote {
  margin: 0;
}
ul,
ol {
  list-style: none;
  padding: 0;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--pad);
}
h1 {
  max-width: 15ch;
  font: 400 clamp(44px, 7.4vw, 96px) / 1 var(--serif);
  letter-spacing: -0.025em;
  text-wrap: balance;
}
h2 {
  font: 400 clamp(34px, 4.4vw, 56px) / 1.05 var(--serif);
  letter-spacing: -0.02em;
  text-wrap: balance;
}
p {
  text-wrap: pretty;
}
.green {
  color: var(--green);
}
.rust {
  color: var(--person);
}
/* a small uppercase label in the mono face */
.label {
  font: 500 12px/1.5 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink2);
}

/* top bar */
.top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}
.top-row {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  white-space: nowrap;
}
.brand:hover {
  color: var(--ink);
}
.mark {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  background: var(--green);
  color: var(--on-green);
  font-size: 14px;
  font-weight: 600;
  border-radius: 3px;
}
.links {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 15px;
}
.links a {
  color: var(--ink2);
  text-decoration: none;
}
.links a:hover {
  color: var(--ink);
}
.links .signin {
  color: var(--green);
  font-weight: 600;
}

/* sections: paper and band alternate, each opens on a 2px ink rule with its number */
section {
  padding: clamp(72px, 9vw, 120px) 0;
}
.band {
  background: var(--band);
}
.sec-head {
  display: flex;
  gap: 20px;
  align-items: baseline;
  border-top: 2px solid var(--ink);
  padding-top: 14px;
  margin-bottom: 40px;
  font: 500 13px/1 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink2);
}
.sec-head span {
  color: var(--green);
}
.intro {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr));
  gap: 24px 72px;
  margin-bottom: 56px;
  align-items: end;
}
.lead {
  color: var(--ink2);
  font-size: 19px;
  max-width: 52ch;
}
.two {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr));
  gap: 48px 72px;
}
.two h2 {
  margin-bottom: 24px;
}
.copy p {
  color: var(--ink2);
  max-width: 54ch;
}
.copy p + p {
  margin-top: 16px;
}
.small {
  margin-top: 20px;
  font-size: 14px;
  color: var(--ink2);
  max-width: 56ch;
}

/* buttons */
.cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border: 1px solid var(--ink);
  border-radius: 3px;
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
}
.button:hover {
  background: var(--ink);
  color: var(--paper);
}
.button.primary {
  background: var(--green);
  border-color: var(--green);
  color: var(--on-green);
}
.button.primary:hover {
  background: var(--green-deep);
  border-color: var(--green-deep);
  color: var(--on-green);
}

/* figures: every screenshot sits in a card frame with a numbered caption */
.shot img {
  width: 100%;
  padding: 8px;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 4px;
}
.shot figcaption {
  display: flex;
  gap: 14px;
  margin-top: 12px;
  font-size: 14px;
  color: var(--ink2);
}
.shot figcaption span {
  font-family: var(--mono);
  color: var(--ink);
  white-space: nowrap;
}

/* hero */
.hero {
  padding: clamp(56px, 9vw, 112px) 0 0;
}
.kicker {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 28px;
  font: 500 13px/1.4 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink2);
}
.kicker span {
  color: var(--green);
}
.hero-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: 32px 64px;
  margin-top: 48px;
  align-items: end;
}
.hero-row p {
  font-size: clamp(18px, 1.6vw, 21px);
  line-height: 1.55;
  color: var(--ink2);
  max-width: 60ch;
}
.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
  margin-top: 72px;
  border-top: 2px solid var(--ink);
}
.facts li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 24px 24px 0;
  border-bottom: 1px solid var(--rule);
  font-size: 15px;
  color: var(--ink2);
}
.facts strong {
  font: 400 44px/1 var(--serif);
  letter-spacing: -0.02em;
  color: var(--ink);
}
.hero-shot {
  margin-top: 64px;
}
.hero-shot img {
  aspect-ratio: 16 / 8;
  object-fit: cover;
  object-position: top left;
}

/* 01 the problem */
.manual {
  border-top: 1px solid var(--ink);
  margin-top: 10px;
}
.manual li {
  display: grid;
  grid-template-columns: 36px 1fr auto;
  gap: 12px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}
.manual li span {
  font: 400 13px var(--mono);
  color: var(--ink2);
}
.manual li span:last-child {
  color: var(--person);
}
.view {
  display: grid;
  grid-template-columns: minmax(0, 160px) minmax(0, 1fr);
  gap: 24px 48px;
  margin-top: clamp(56px, 7vw, 96px);
}
.view .label {
  font-size: 13px;
  color: var(--green);
}
.view p:last-child {
  max-width: 30ch;
  font: 400 clamp(26px, 3vw, 38px) / 1.3 var(--serif);
  letter-spacing: -0.01em;
}

/* 02 how it works: four ways in, the rules, the system of record */
.modes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.modes article {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px 24px 32px;
  background: var(--card);
}
.modes article > span {
  font: 400 13px var(--mono);
  color: var(--ink2);
}
.modes h3 {
  font: 600 19px/1.25 var(--sans);
}
.modes p {
  font-size: 15px;
  color: var(--ink2);
}
.modes .accent {
  background: var(--green);
  color: var(--on-green);
}
.modes .accent > span,
.modes .accent p {
  color: var(--on-green);
}
.modes .accent > span {
  opacity: 0.85;
}
.ticks {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  height: 28px;
}
.ticks span {
  width: 50%;
  border-right: 1px solid var(--ink);
}
.tick {
  width: 50%;
  height: 28px;
  border-right: 1px solid var(--ink);
}
.rules,
.core {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  align-items: baseline;
}
.rules {
  padding: 18px 24px;
  border: 1px solid var(--ink);
  background: var(--paper);
  font-weight: 500;
}
.rules .label,
.core .label {
  min-width: 140px;
}
.core {
  padding: 24px;
  background: var(--ink);
  color: var(--paper);
  font: 400 clamp(20px, 2vw, 26px) / 1.3 var(--serif);
}
.core .label {
  color: var(--paper);
  opacity: 0.75;
}

/* 03 Autopilot: the pass, labelled by who acts, and the outcomes */
.pass {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 190px), 1fr));
  border-top: 2px solid var(--ink);
}
.pass li {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 20px 28px 16px;
  border-bottom: 1px solid var(--rule);
}
.pass li:nth-child(-n + 2) {
  padding-left: 0;
}
.pass li > span {
  display: flex;
  justify-content: space-between;
  font: 400 13px var(--mono);
  color: var(--ink2);
}
.pass li > span span {
  color: var(--green);
}
.pass h3 {
  font: 600 18px/1.25 var(--sans);
}
.pass p {
  font-size: 15px;
  color: var(--ink2);
}
.pass .model {
  background: var(--green-soft);
}
.pass .model > span span {
  color: var(--green-deep);
}
.pass .person {
  background: var(--person-soft);
}
.pass .person > span span {
  color: var(--person);
}
.note {
  margin-top: 24px;
  font-size: 15px;
  color: var(--ink2);
  max-width: 80ch;
}
.outcomes-block {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 72px;
  margin-top: clamp(64px, 8vw, 104px);
}
.outcomes-block h3 {
  flex: 1 1 260px;
  max-width: 16ch;
  font: 400 clamp(26px, 2.6vw, 34px) / 1.15 var(--serif);
  letter-spacing: -0.01em;
}
.outcomes {
  flex: 2 1 480px;
  min-width: 0;
  border-top: 1px solid var(--ink);
}
.outcomes li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}
.outcomes .phase {
  flex: 0 0 76px;
  font: 400 12px var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--green);
}
.outcomes strong {
  flex: 1 1 200px;
  font-weight: 600;
}
.outcomes .what {
  flex: 1.3 1 240px;
  font-size: 15px;
  color: var(--ink2);
}

/* 04 controls: who may do what */
.matrix {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: 1px;
  background: var(--ink);
  border: 1px solid var(--ink);
}
.matrix > div {
  padding: 28px;
  background: var(--card);
}
.matrix .label {
  margin-bottom: 18px;
  line-height: 1;
}
.matrix .agents {
  color: var(--green);
}
.matrix .people {
  color: var(--person);
}
.matrix .second {
  color: var(--ink);
}
.matrix li {
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
}
.matrix li:last-child {
  border-bottom: 0;
}
.controls-more {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr));
  gap: 48px 72px;
  margin-top: 64px;
  align-items: start;
}
.checks {
  border-top: 1px solid var(--ink);
}
.checks li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}
.checks li::before {
  content: "✓";
  color: var(--green);
}

/* 05 audit and 07 scope: numbered rows */
.numbered {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: 0 48px;
}
.numbered article {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 4px 12px;
  padding: 20px 0 36px;
  border-top: 1px solid var(--ink);
}
.numbered article > span {
  font: 400 13px/1.6 var(--mono);
  color: var(--green);
}
.numbered h3 {
  margin-bottom: 8px;
  font: 600 18px/1.3 var(--sans);
}
.numbered p {
  font-size: 15px;
  color: var(--ink2);
}
.next {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 48px;
  margin-top: 24px;
  padding: 28px;
  border: 1px solid var(--green);
  background: var(--green-soft);
}
.next .label {
  flex: 1 1 220px;
  color: var(--green-deep);
}
.next p:last-child {
  flex: 2 1 420px;
  min-width: 0;
  font-size: 16px;
}
/* the three steps: software people work in, agents bolted on, intelligence in the record */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.steps article {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 28px 24px 32px;
  background: var(--card);
}
.steps article > span {
  font: 400 13px var(--mono);
  color: var(--ink2);
}
.steps h3 {
  font: 400 26px/1.2 var(--serif);
}
.steps p {
  font-size: 15px;
  color: var(--ink2);
}
.steps-gap {
  margin-top: 48px;
}
.steps .skip h3 {
  text-decoration: line-through;
  text-decoration-color: var(--person);
  text-decoration-thickness: 2px;
}
.steps .skip > span {
  color: var(--person);
}
.steps .accent {
  background: var(--green);
}
.steps .accent > span,
.steps .accent h3,
.steps .accent p {
  color: var(--on-green);
}
.sources {
  margin-top: 20px;
  font-size: 14px;
  color: var(--ink2);
}
.sources a {
  color: var(--ink2);
}
.scope {
  border-top: 2px solid var(--ink);
  counter-reset: scope;
}
.scope div {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 24px;
  align-items: baseline;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
}
.scope div::before {
  counter-increment: scope;
  content: counter(scope, decimal-leading-zero);
  flex: 0 0 40px;
  font: 400 13px var(--mono);
  color: var(--ink2);
}
.scope dt {
  flex: 1 1 220px;
  font: 400 22px/1.25 var(--serif);
}
.scope dd {
  flex: 2 1 300px;
  min-width: 0;
  font-size: 15px;
  color: var(--ink2);
}

/* 06 assistants and 08 countries */
.assistants .two {
  align-items: center;
}
.countries {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  margin-top: 32px;
  border-top: 1px solid var(--ink);
}
.countries li {
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
  font-size: 15px;
}

/* 09 business model */
.compare {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr));
  gap: 1px;
  background: var(--ink);
  border: 1px solid var(--ink);
}
.compare article {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: clamp(28px, 4vw, 48px);
  background: var(--card);
  color: var(--ink2);
}
.compare .label {
  line-height: 1;
}
.compare .quote {
  font: 400 clamp(22px, 2.4vw, 30px) / 1.3 var(--serif);
}
.compare article p:last-child {
  margin-top: auto;
  font-size: 15px;
}
.compare .accent {
  background: var(--green);
  color: var(--on-green);
}
.compare .accent .label {
  color: var(--on-green);
}
.who-label {
  margin-top: 64px;
  line-height: 1;
}
.who {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 0 48px;
  margin-top: 16px;
}
.who div {
  padding: 20px 0;
  border-top: 1px solid var(--ink);
}
.who h3 {
  margin-bottom: 8px;
  font: 400 24px/1.2 var(--serif);
}
.who p {
  font-size: 15px;
  color: var(--ink2);
}

/* 10 a look inside */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr));
  gap: 48px 40px;
}
.gallery img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top left;
}

/* the close, on ink */
.closing {
  padding: clamp(80px, 10vw, 136px) 0;
  background: var(--ink);
  color: var(--paper);
}
.closing .wrap {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr));
  gap: 40px 72px;
  align-items: end;
}
.closing h2 {
  font-size: clamp(44px, 6vw, 80px);
  line-height: 1;
  letter-spacing: -0.025em;
}
.closing p {
  margin-bottom: 32px;
  font-size: 18px;
  opacity: 0.85;
  max-width: 52ch;
}
.closing .button {
  border-color: var(--paper);
  color: var(--paper);
}
.closing .button:hover {
  background: var(--paper);
  color: var(--ink);
}
.closing .button.primary {
  background: var(--paper);
  color: var(--ink);
}
.closing .button.primary:hover {
  background: var(--green-soft);
  border-color: var(--green-soft);
  color: var(--ink);
}
.closing a:focus-visible {
  outline-color: var(--paper);
}

/* footer */
footer {
  border-top: 1px solid var(--rule);
}
.foot {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 28px;
  padding-bottom: 28px;
  font-size: 14px;
  color: var(--ink2);
}
.foot nav {
  display: flex;
  gap: 20px;
}
.foot a {
  color: var(--ink2);
}

@media (max-width: 960px) {
  .modes,
  .ticks {
    grid-template-columns: repeat(2, 1fr);
  }
  .ticks span:nth-child(n + 3) {
    display: none;
  }
}
@media (max-width: 640px) {
  .links a:not(.signin):not(.docs) {
    display: none;
  }
  .modes,
  .ticks {
    grid-template-columns: 1fr;
  }
  .ticks span:nth-child(n + 2) {
    display: none;
  }
  .view {
    grid-template-columns: minmax(0, 1fr);
  }
  .pass li,
  .pass li:nth-child(-n + 2) {
    padding-left: 16px;
  }
}
.who-label + .numbered {
  margin-top: 16px;
}
.talk {
  align-items: center;
}