:root {
  color-scheme: dark;
  --bg: #090c12;
  --panel: #10151f;
  --panel-2: #141b27;
  --text: #f3f6fb;
  --muted: #929db2;
  --quiet: #667188;
  --line: #252e40;
  --line-bright: #3b4962;
  --accent: #a7f3d0;
  --accent-soft: rgba(167, 243, 208, 0.09);
  --accent-2: #8bb7ff;
  --warm: #ffd59a;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 300px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 86% 6%, rgba(139, 183, 255, 0.07), transparent 28rem), var(--bg);
  color: var(--text);
}

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

button,
input {
  font: inherit;
}

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

.noise {
  position: fixed;
  z-index: 20;
  inset: 0;
  max-width: 100%;
  pointer-events: none;
  opacity: 0.032;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E");
}

.nav {
  display: flex;
  height: 82px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 760;
  letter-spacing: -0.03em;
}

.brand svg {
  width: 34px;
  height: 34px;
  color: var(--accent);
}

.nav nav {
  display: flex;
  align-items: center;
  gap: 26px;
  color: var(--muted);
  font-size: 14px;
}

.nav nav a {
  transition: color 0.16s ease;
}

.nav nav a:hover,
.nav nav a:focus-visible {
  color: var(--text);
}

.nav .github {
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--text);
}

.hero {
  position: relative;
  padding: 112px 0 76px;
}

.hero::after {
  position: absolute;
  top: 24px;
  right: calc((100vw - 100%) / -2);
  width: 570px;
  height: 570px;
  border: 1px solid rgba(139, 183, 255, 0.06);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 183, 255, 0.11), transparent 67%);
  content: '';
  pointer-events: none;
}

.eyebrow,
.kicker {
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
}

.eyebrow span {
  width: 22px;
  height: 1px;
  background: var(--accent);
}

h1 {
  max-width: 900px;
  margin: 34px 0 36px;
  font-size: clamp(64px, 10vw, 128px);
  line-height: 0.87;
  letter-spacing: -0.075em;
}

h1 em {
  color: var(--accent);
  font-style: normal;
  font-weight: 450;
}

.lede {
  max-width: 700px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  padding: 0 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  transition:
    background 0.16s ease,
    border-color 0.16s ease,
    transform 0.16s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.primary {
  background: var(--accent);
  color: #08110e;
}

.primary:hover {
  background: #c4fae2;
}

.secondary {
  border: 1px solid var(--line);
}

.secondary:hover {
  border-color: var(--line-bright);
  background: var(--panel);
}

.harnesses {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 76px;
  color: #69758d;
  font:
    600 11px ui-monospace,
    SFMono-Regular,
    Menlo,
    monospace;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.harnesses i {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #465167;
}

.principle {
  display: grid;
  overflow: hidden;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(16, 21, 31, 0.72);
  box-shadow: 0 22px 65px rgba(0, 0, 0, 0.13);
}

.principle article {
  min-height: 170px;
  padding: 30px;
}

.principle article + article {
  border-left: 1px solid var(--line);
}

.principle b {
  font-size: 17px;
}

.principle p,
.section-heading p,
.flow p {
  color: var(--muted);
  line-height: 1.55;
}

.catalog,
.compatibility {
  padding: 130px 0 90px;
  scroll-margin-top: 30px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
}

h2 {
  margin: 13px 0 0;
  font-size: clamp(42px, 6vw, 72px);
  letter-spacing: -0.055em;
}

.section-heading > p {
  width: min(400px, 100%);
  margin: 0 0 7px;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin-top: 46px;
}

.search {
  display: flex;
  width: min(560px, 100%);
  min-width: 300px;
  height: 48px;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--panel);
  color: var(--muted);
  transition:
    border-color 0.16s ease,
    box-shadow 0.16s ease;
}

.search:focus-within {
  border-color: rgba(167, 243, 208, 0.55);
  box-shadow: 0 0 0 3px rgba(167, 243, 208, 0.07);
}

.search input {
  min-width: 0;
  flex: 1;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
}

.search input::placeholder {
  color: #6c778c;
}

.toolbar-note {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  color: var(--quiet);
  font:
    600 11px ui-monospace,
    SFMono-Regular,
    Menlo,
    monospace;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.toolbar-note span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.status {
  min-height: 68px;
  padding: 28px 2px 18px;
  color: var(--muted);
  font-size: 13px;
}

.role-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.role-card {
  display: flex;
  min-height: 310px;
  flex-direction: column;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(145deg, var(--panel-2), var(--panel));
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.08);
  transition:
    transform 0.18s ease,
    border-color 0.18s ease;
}

.role-card:hover {
  transform: translateY(-3px);
  border-color: #40506b;
}

.role-top,
.role-bottom,
.compat-card-top,
.compat-links {
  display: flex;
  align-items: center;
}

.role-top,
.role-bottom,
.compat-card-top,
.compat-links {
  justify-content: space-between;
  gap: 12px;
}

.trust,
.version,
.portability,
.transport,
.compat-version,
.compat-index {
  font:
    650 10px ui-monospace,
    SFMono-Regular,
    Menlo,
    monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.trust {
  color: var(--accent);
}

.version,
.compat-version,
.compat-index {
  color: #68758e;
}

.universal-mark {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  color: var(--accent-2);
}

.universal-mark i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 3px rgba(139, 183, 255, 0.09);
}

.role-card h3,
.compatibility-card h3 {
  margin: 25px 0 10px;
  font-size: 23px;
  letter-spacing: -0.035em;
}

.description,
.implementation {
  flex: 1;
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 18px;
}

.tags span {
  padding: 5px 7px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: #aab5ca;
  font-size: 11px;
}

.role-bottom {
  margin-top: 21px;
  padding-top: 17px;
  border-top: 1px solid var(--line);
}

.role-id {
  overflow: hidden;
  max-width: 62%;
  color: #68758e;
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.role-link,
.compat-links a {
  color: var(--warm);
  font-size: 12px;
  font-weight: 700;
}

.role-link:hover,
.compat-links a:hover {
  color: #ffe7c6;
}

.empty-state {
  grid-column: 1 / -1;
  margin: 0;
  padding: 42px;
  border: 1px dashed var(--line);
  border-radius: 14px;
  color: var(--muted);
  text-align: center;
}

.empty-state a {
  color: var(--warm);
}

.compatibility {
  position: relative;
  padding-top: 80px;
}

.compatibility::before {
  position: absolute;
  top: 0;
  left: 50%;
  width: 100vw;
  height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, var(--line), transparent);
  content: '';
}

.compatibility-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}

.compatibility-card {
  position: relative;
  display: flex;
  overflow: hidden;
  min-height: 310px;
  grid-column: span 2;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(139, 183, 255, 0.06), transparent 43%), var(--panel);
  transition:
    transform 0.18s ease,
    border-color 0.18s ease;
}

.compatibility-card:nth-child(4),
.compatibility-card:nth-child(5) {
  grid-column: span 3;
}

.compatibility-card::after {
  position: absolute;
  top: -70px;
  right: -70px;
  width: 150px;
  height: 150px;
  border: 1px solid rgba(167, 243, 208, 0.08);
  border-radius: 50%;
  content: '';
}

.compatibility-card:hover {
  transform: translateY(-3px);
  border-color: #40506b;
}

.compat-card-top {
  justify-content: flex-start;
}

.compat-index {
  margin-right: auto;
}

.transport {
  padding: 4px 7px;
  border: 1px solid rgba(167, 243, 208, 0.22);
  border-radius: 6px;
  color: var(--accent);
}

.compat-target-row {
  display: flex;
  min-height: 23px;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 18px;
}

.compat-target {
  color: var(--accent-2);
  font-size: 12px;
  font-weight: 700;
}

.target-version {
  color: #68758e;
  font-size: 10px;
}

.implementation {
  font-size: 14px;
}

.package-name {
  overflow: hidden;
  margin-top: 21px;
  padding: 10px 11px;
  border: 1px solid rgba(255, 255, 255, 0.055);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.16);
  color: #96a2b9;
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.compat-links {
  margin-top: 15px;
}

.compat-links .docs-link {
  color: var(--muted);
}

.flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 30px auto 120px;
  padding: 44px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.flow > div {
  padding-right: 30px;
}

.step {
  display: block;
  margin-bottom: 24px;
  color: var(--accent);
  font:
    700 11px ui-monospace,
    SFMono-Regular,
    Menlo,
    monospace;
}

.flow b {
  font-size: 17px;
}

.flow p {
  font-size: 14px;
}

footer {
  display: flex;
  min-height: 110px;
  align-items: center;
  gap: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  color: var(--muted);
  font-size: 12px;
}

footer .small {
  color: var(--text);
  font-size: 16px;
}

footer p {
  flex: 1;
}

footer a:hover {
  color: var(--text);
}

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

@media (max-width: 900px) {
  .role-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .compatibility-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .compatibility-card,
  .compatibility-card:nth-child(4),
  .compatibility-card:nth-child(5) {
    grid-column: auto;
  }

  .flow {
    grid-template-columns: repeat(2, 1fr);
    gap: 34px 0;
  }

  .principle {
    grid-template-columns: 1fr;
  }

  .principle article + article {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .section-heading {
    align-items: stretch;
    flex-direction: column;
  }
}

@media (max-width: 720px) {
  .nav nav a:not(.github) {
    display: none;
  }

  .toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .search {
    min-width: 0;
  }
}

@media (max-width: 620px) {
  .noise {
    display: none;
  }

  .shell {
    width: min(100% - 24px, 1180px);
  }

  .hero {
    padding-top: 80px;
  }

  h1 {
    font-size: 58px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
    text-align: center;
  }

  .button {
    justify-content: center;
  }

  .role-grid,
  .compatibility-grid,
  .flow {
    grid-template-columns: 1fr;
  }

  .role-card,
  .compatibility-card {
    min-height: 290px;
  }

  .toolbar-note {
    align-self: flex-start;
  }

  footer {
    flex-wrap: wrap;
    gap: 12px 24px;
    padding: 28px 0;
  }

  footer p {
    order: 3;
    flex-basis: 100%;
  }
}

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

  .role-card,
  .compatibility-card,
  .button {
    transition: none;
  }
}