:root {
  --canvas: #ffffff;
  --ink: #000000;
  --hairline: #e6e6e6;
  --hairline-soft: #f1f1f1;
  --surface-soft: #f7f7f5;
  --block-lime: #dceeb1;
  --block-lilac: #c5b0f4;
  --block-navy: #1f1d3d;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 24px;
  --radius-pill: 9999px;
  --shell: min(1280px, calc(100vw - 48px));
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: Inter, "SF Pro Display", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  font-size: 18px;
  line-height: 1.45;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.shell {
  width: var(--shell);
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: 12px;
  transform: translateY(-150%);
  padding: 10px 14px;
  border-radius: var(--radius-pill);
  background: var(--ink);
  color: var(--canvas);
  z-index: 50;
}

.skip-link:focus {
  transform: translateY(0);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
}

.topbar__inner {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.wordmark,
.footer__logo {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.wordmark img {
  width: 210px;
  height: auto;
}

.footer__logo img {
  width: 188px;
  height: auto;
}

.topnav,
.actions,
.footer {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.topnav {
  justify-content: center;
  flex: 1;
}

.mobile-nav {
  display: none;
  position: relative;
}

.mobile-nav > summary {
  list-style: none;
}

.mobile-nav > summary::-webkit-details-marker {
  display: none;
}

.mobile-nav__button {
  width: 44px;
  height: 44px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: var(--radius-pill);
  background: var(--canvas);
  cursor: pointer;
}

.mobile-nav__button span {
  display: block;
  width: 16px;
  height: 2px;
  background: var(--ink);
  border-radius: 999px;
}

.mobile-nav__button span + span {
  margin-top: 3px;
}

.mobile-nav__panel {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  display: grid;
  gap: 4px;
  min-width: 180px;
  padding: 12px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  background: var(--canvas);
}

.mobile-nav__panel a {
  padding: 10px 12px;
  border-radius: var(--radius-pill);
}

.mobile-nav__cta {
  background: var(--ink);
  color: var(--canvas);
}

.topnav a {
  padding: 10px 14px;
  border-radius: var(--radius-pill);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--ink);
  border-radius: var(--radius-pill);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0;
}

.button--primary {
  background: var(--ink);
  color: var(--canvas);
}

.button--secondary {
  background: var(--canvas);
  color: var(--ink);
}

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  gap: 32px;
  align-items: center;
  padding: 48px 0 64px;
}

.hero__lines {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.75;
  background-image:
    linear-gradient(90deg, transparent 0 12%, rgba(14, 165, 255, 0.08) 12% 12.2%, transparent 12.2% 26%, rgba(0, 212, 143, 0.1) 26% 26.2%, transparent 26.2% 100%),
    repeating-linear-gradient(180deg, rgba(6, 20, 40, 0.05) 0 1px, transparent 1px 26px),
    linear-gradient(135deg, rgba(14, 165, 255, 0.06), transparent 34%, rgba(0, 212, 143, 0.06));
  background-size: 220px 100%, 100% 100%, 100% 100%;
  animation: line-drift 16s linear infinite;
}

.hero__copy,
.hero__visual {
  position: relative;
  z-index: 1;
}

.hero__copy,
.band__inner {
  display: grid;
  gap: 20px;
}

.section-head {
  display: grid;
  gap: 8px;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
}

.eyebrow--inverse {
  color: var(--canvas);
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  max-width: 10ch;
  font-size: 86px;
  line-height: 1;
  font-weight: 340;
}

h2 {
  max-width: 12ch;
  font-size: 52px;
  line-height: 1.05;
  font-weight: 340;
}

h3 {
  font-size: 24px;
  line-height: 1.35;
  font-weight: 700;
}

.lede,
.band__body,
.feature-grid p,
.doc-card p,
.docs-preview p {
  font-size: 18px;
  line-height: 1.45;
  font-weight: 320;
}

.hero__visual {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  background: #091022;
}

.hero__visual img {
  width: 100%;
  height: auto;
}

.band {
  padding: 48px 0;
}

.band__inner {
  padding: 48px;
  border-radius: var(--radius-lg);
}

.band--lilac .band__inner {
  background: var(--block-lilac);
}

.band--cream .band__inner {
  background: var(--block-cream);
}

.band--lime .band__inner {
  background: var(--block-lime);
}

.band--navy .band__inner {
  background: var(--block-navy);
  color: var(--canvas);
}

.band__inner--compact {
  gap: 18px;
}

.feature-grid,
.doc-grid,
.docs-preview {
  display: grid;
  gap: 16px;
}

.repo-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.doc-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.docs-preview {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding-top: 4px;
}

.feature-grid article,
.doc-card,
.repo-card,
.docs-preview article {
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: rgba(255, 255, 255, 0.42);
}

.doc-card {
  display: grid;
  gap: 10px;
}

.repo-card {
  display: grid;
  gap: 10px;
  min-height: 180px;
}

.repo-card__meta {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0;
}

.repo-card span {
  margin-top: auto;
  font-weight: 600;
}

.docs-preview article {
  background: rgba(255, 255, 255, 0.28);
}

.band--navy .feature-grid article,
.band--navy .doc-card,
.band--navy .repo-card,
.band--navy .docs-preview article {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
}

.band--navy .button--secondary,
.button--inverse {
  border-color: var(--canvas);
  color: var(--canvas);
  background: transparent;
}

.footer {
  padding: 20px 0 32px;
  justify-content: flex-start;
  border-top: 1px solid var(--hairline);
}

@media (max-width: 1120px) {
  h1 {
    font-size: 72px;
  }

  h2 {
    font-size: 40px;
  }
}

@media (max-width: 960px) {
  .hero,
  .feature-grid,
  .repo-grid,
  .doc-grid,
  .docs-preview {
    grid-template-columns: 1fr;
  }

  .topbar__inner,
  .footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .topnav {
    display: none;
  }

  .mobile-nav {
    display: block;
  }

  .topbar__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

@media (max-width: 640px) {
  .shell {
    width: calc(100vw - 24px);
  }

  .hero {
    padding: 32px 0 48px;
  }

  .band {
    padding: 24px 0;
  }

  .band__inner {
    padding: 24px 20px;
    border-radius: 0;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
  }

  h1 {
    font-size: 48px;
  }

  h2 {
    font-size: 32px;
  }

  .actions {
    width: 100%;
    flex-direction: column;
  }

  .actions .button {
    width: 100%;
  }

  .topbar__inner {
    gap: 12px;
  }

  .wordmark img {
    width: 156px;
  }

  .topbar__inner > .button {
    display: none;
  }

  .mobile-nav__panel {
    left: 0;
    right: auto;
    min-width: min(260px, calc(100vw - 24px));
  }
}

@keyframes line-drift {
  from {
    transform: translate3d(0, 0, 0);
  }

  to {
    transform: translate3d(-220px, 0, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__lines {
    animation: none;
  }
}