:root {
  color-scheme: light;
  --paper: #f3f2e9;
  --ink: #192e22;
  --forest: #233d2d;
  --line: #9da697;
  --muted: #51604e;
  --serif: Georgia, "Times New Roman", serif;
  --mono: ui-monospace, SFMono-Regular, Consolas, monospace;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 28px;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
  text-underline-offset: 5px;
}
a:hover {
  text-decoration: underline;
}
a:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 6px;
}
::selection {
  background: #d0ddbe;
  color: var(--ink);
}
.wrap {
  width: calc(100% - 112px);
  max-width: 1288px;
  margin-inline: auto;
}
.skip-link {
  position: absolute;
  z-index: 10;
  top: 8px;
  left: 12px;
  padding: 12px 20px;
  background: var(--forest);
  color: var(--paper);
  transform: translateY(-180%);
}
.skip-link:focus {
  transform: translateY(0);
}
.site-header {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 35px;
  letter-spacing: -1.5px;
  white-space: nowrap;
}
.brand:hover {
  text-decoration: none;
}
.brand img {
  display: block;
}
nav {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 15px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 17px;
  padding: 14px 23px;
  background: var(--forest);
  color: var(--paper);
  border: 1px solid var(--forest);
  font: inherit;
  font-size: 18px;
  white-space: nowrap;
  transition: background 0.18s ease;
}
.button:hover {
  background: #365439;
  text-decoration: none;
}
.button.compact {
  padding: 10px 22px;
  font-size: 16px;
}
.arrow {
  width: 20px;
  height: 20px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.text-link {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  font-size: 18px;
}
.hero {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  align-items: center;
  gap: 28px;
  padding-top: 0;
  padding-bottom: 15px;
}
h1,
h2,
h3,
p,
figure {
  margin: 0;
}
h1 {
  font-size: clamp(68px, 7.6vw, 108px);
  font-weight: 500;
  line-height: 0.96;
  letter-spacing: -4.5px;
}
h1 em {
  font-weight: 500;
}
.hero-copy > p {
  font-size: 23px;
  line-height: 1.24;
  max-width: 510px;
  margin-top: 28px;
  letter-spacing: -0.35px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 28px;
}
.orbit {
  width: 100%;
  min-width: 0;
}
.orbit svg {
  display: block;
  width: 100%;
  height: auto;
}
.principles {
  display: grid;
  grid-template-columns: 0.95fr 1.1fr 1.2fr;
  border-top: 1px solid var(--line);
  padding-top: 26px;
  padding-bottom: 32px;
  gap: 24px;
}
.principles > div + div {
  border-left: 1px solid var(--line);
  padding-left: 28px;
}
.index {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 2px;
  line-height: 1.4;
}
.principles h2 {
  font-size: 27px;
  font-weight: 400;
  letter-spacing: -1.1px;
  line-height: 1.15;
  margin-top: 9px;
}
.dash {
  display: block;
  width: 19px;
  border-top: 1px solid var(--ink);
  margin-top: 16px;
}
.architecture {
  background: #f7f6ef;
  padding: 33px 0 37px;
}
.section-label {
  font-family: var(--mono);
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 2.5px;
  margin-bottom: 12px;
}
.architecture h2,
.radicle h2,
.software h2 {
  font-size: clamp(39px, 4.7vw, 66px);
  font-weight: 500;
  letter-spacing: -2px;
  line-height: 1.1;
}
.radicle {
  overflow: hidden;
  padding: 48px 0;
  background: #e4e7da;
}
.radicle-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.8fr) minmax(560px, 1.2fr);
  align-items: center;
  gap: clamp(45px, 7vw, 105px);
}
.radicle h2 em {
  font-weight: 500;
}
.radicle-copy .section-intro {
  max-width: 520px;
}
.radicle-copy .button {
  margin-top: 29px;
}
.seed-observatory {
  display: grid;
  grid-template-columns: minmax(250px, 0.9fr) minmax(230px, 1.1fr);
  align-items: center;
  gap: 30px;
  padding-block: 22px;
  border-block: 1px solid var(--line);
  min-width: 0;
}
.seed-map {
  display: block;
  width: 100%;
  height: auto;
  color: #49634d;
}
.seed-lines {
  stroke: #7e9079;
  stroke-width: 1;
}
.seed-nodes {
  fill: var(--forest);
}
.seed-nodes circle:nth-child(2n) {
  fill: #71816a;
}
.seed-core {
  fill: var(--forest);
}
.seed-mark {
  stroke: var(--paper);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.seed-facts {
  margin: 0;
}
.seed-facts > div {
  padding: 15px 0 16px;
  border-top: 1px solid var(--line);
}
.seed-facts > div:first-child {
  border-top: 0;
}
.seed-facts dt {
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1.4;
  letter-spacing: 1.7px;
  text-transform: uppercase;
}
.seed-facts dd {
  margin: 5px 0 0;
  font-size: 17px;
  line-height: 1.3;
  overflow-wrap: anywhere;
}
.seed-note {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.45;
  color: var(--muted);
}
.section-intro {
  font-size: 24px;
  line-height: 1.3;
  margin-top: 7px;
  letter-spacing: -0.3px;
}
.layers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  list-style: none;
  padding: 0;
  margin: 26px 0 0;
  text-align: center;
}
.layers li {
  position: relative;
  min-width: 0;
}
.layers li:not(:last-child)::after {
  content: "";
  position: absolute;
  height: 1px;
  background: #778772;
  top: 23px;
  left: calc(50% + 32px);
  width: calc(100% - 36px);
}
.layers li:not(:last-child)::before {
  content: "";
  position: absolute;
  width: 7px;
  height: 7px;
  border-top: 1px solid #778772;
  border-right: 1px solid #778772;
  transform: rotate(45deg);
  top: 19.5px;
  left: calc(100% + 7px);
}
.step {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  width: 45px;
  height: 45px;
  border: 1px solid var(--forest);
  border-radius: 50%;
  font-size: 22px;
}
.layers h3 {
  font-size: 21px;
  font-weight: 400;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}
.layers p {
  font-size: 15px;
  line-height: 1.35;
}
.software {
  background: var(--forest);
  color: var(--paper);
  padding: 38px 0 30px;
}
.software-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid #c3cbbb;
}
.software-list li {
  display: grid;
  grid-template-columns: 45px 1fr 2fr 140px;
  align-items: center;
  gap: 20px;
  padding: 10px 0;
  border-bottom: 1px solid #abb8a3;
}
.software-list h3 {
  font-size: 22px;
  font-weight: 400;
  letter-spacing: -0.3px;
}
.software-list p,
.category {
  font-size: 17px;
}
.software-list .index {
  color: #d6dece;
}
.site-footer {
  display: flex;
  align-items: center;
  gap: 22px;
  min-height: 83px;
}
.site-footer .brand {
  font-size: 27px;
  gap: 7px;
  letter-spacing: -0.8px;
}
.site-footer p {
  font-size: 14px;
  border-left: 1px solid var(--line);
  padding: 8px 0 8px 22px;
}
.back-top {
  margin-left: auto;
  font-size: 14px;
  white-space: nowrap;
}
.up {
  transform: rotate(-90deg);
  width: 16px;
  height: 16px;
}
@media (min-width: 1280px) {
  .hero {
    padding-block: 45px;
  }
  .principles {
    padding-block: 32px 40px;
  }
  .architecture {
    padding-block: 48px;
  }
  .software {
    padding-block: 48px;
  }
  .software-list li {
    padding-block: 15px;
  }
  .layers {
    margin-top: 38px;
  }
  .site-header {
    min-height: 88px;
  }
  .site-footer {
    min-height: 96px;
  }
}
@media (max-width: 1050px) {
  .wrap {
    width: calc(100% - 64px);
  }
  nav {
    gap: 22px;
  }
  .hero {
    gap: 8px;
  }
  .hero-copy > p {
    font-size: 21px;
  }
  .hero-actions {
    gap: 18px;
    flex-wrap: wrap;
  }
  .button,
  .text-link {
    font-size: 16px;
  }
  .principles {
    gap: 24px;
  }
  .principles > div + div {
    padding-left: 24px;
  }
  .principles h2 {
    font-size: 26px;
  }
  .software-list li {
    grid-template-columns: 40px 1fr 1.6fr 120px;
  }
  .radicle-layout {
    grid-template-columns: minmax(280px, 0.75fr) minmax(440px, 1.25fr);
    gap: 42px;
  }
  .seed-observatory {
    grid-template-columns: minmax(210px, 0.85fr) minmax(190px, 1.15fr);
    gap: 24px;
  }
}
@media (max-width: 760px) {
  .wrap {
    width: calc(100% - 40px);
  }
  .site-header {
    align-items: flex-start;
    padding-top: 18px;
    gap: 20px;
    flex-wrap: wrap;
  }
  .brand {
    font-size: 29px;
  }
  .brand img {
    width: 27px;
    height: 38px;
  }
  nav {
    width: 100%;
    justify-content: space-between;
    gap: 12px;
    font-size: 14px;
    padding-block: 3px 16px;
    border-bottom: 1px solid var(--line);
  }
  nav .compact {
    display: none;
  }
  nav > a[href="#projet"] {
    display: none;
  }
  .hero {
    grid-template-columns: 1fr;
    padding-top: 38px;
    padding-bottom: 25px;
    gap: 22px;
  }
  h1 {
    font-size: clamp(59px, 11vw, 82px);
    letter-spacing: -3px;
  }
  .hero-copy > p {
    font-size: 21px;
    max-width: 540px;
    margin-top: 24px;
  }
  .hero-actions {
    margin-top: 24px;
    gap: 22px;
  }
  .orbit {
    max-width: 420px;
    margin: 0 auto;
  }
  .principles {
    grid-template-columns: 1fr;
    gap: 20px;
    padding-block: 25px;
  }
  .principles > div {
    display: grid;
    grid-template-columns: 48px 1fr;
    align-items: baseline;
  }
  .principles > div + div {
    border-left: 0;
    padding-left: 0;
  }
  .principles h2 {
    font-size: 25px;
    margin: 0;
  }
  .dash {
    display: none;
  }
  .architecture {
    padding-block: 35px;
  }
  .architecture h2,
  .radicle h2,
  .software h2 {
    font-size: 42px;
    letter-spacing: -1.7px;
  }
  .section-intro {
    font-size: 20px;
    line-height: 1.35;
  }
  .layers {
    grid-template-columns: 1fr;
    gap: 25px;
    margin-top: 30px;
    text-align: left;
  }
  .layers li {
    padding-left: 65px;
    min-height: 79px;
  }
  .step {
    position: absolute;
    left: 0;
    top: 0;
    margin: 0;
  }
  .layers li:not(:last-child)::after {
    top: 53px;
    left: 22px;
    height: calc(100% - 33px);
    width: 1px;
  }
  .layers li:not(:last-child)::before {
    display: none;
  }
  .layers h3 {
    font-size: 22px;
  }
  .layers p {
    font-size: 17px;
  }
  .layers p br {
    display: none;
  }
  .radicle {
    padding-block: 38px;
  }
  .radicle-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .radicle-copy .button {
    margin-top: 24px;
  }
  .seed-observatory {
    grid-template-columns: minmax(220px, 0.9fr) minmax(200px, 1.1fr);
  }
  .software {
    padding-block: 34px;
  }
  .software-list li {
    grid-template-columns: 27px 1fr auto;
    gap: 6px 12px;
    padding-block: 15px;
  }
  .software-list h3 {
    font-size: 22px;
  }
  .software-list p {
    grid-column: 2 / -1;
    grid-row: 2;
    font-size: 16px;
  }
  .software-list .category {
    grid-column: 3;
    grid-row: 1;
    font-size: 12px;
  }
  .site-footer {
    flex-wrap: wrap;
    gap: 13px 18px;
    padding-block: 22px;
  }
  .site-footer p {
    order: 3;
    width: 100%;
    border: 0;
    padding: 0;
    font-size: 14px;
  }
  .back-top {
    font-size: 13px;
  }
}
@media (max-width: 520px) {
  .seed-observatory {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .seed-map {
    max-width: 330px;
    margin-inline: auto;
  }
  .seed-facts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 18px;
  }
  .seed-facts > div:nth-child(2) {
    border-top: 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    transition: none !important;
  }
}