:root {
  color-scheme: dark;
  --bg: #061115;
  --surface: #091820;
  --surface-strong: #0d222b;
  --line: rgba(155, 181, 187, 0.24);
  --line-strong: rgba(53, 232, 211, 0.54);
  --text: #f4fbfb;
  --muted: #a9bdc2;
  --accent: #35e8d3;
  --warm: #f5a524;
  --danger: #ff7d66;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  font-family: ui-monospace, "SFMono-Regular", "Cascadia Mono", "Liberation Mono", Menlo, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(rgba(53, 232, 211, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 232, 211, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 76% 18%, rgba(53, 232, 211, 0.14), transparent 30rem),
    radial-gradient(circle at 14% 76%, rgba(245, 165, 36, 0.1), transparent 26rem),
    var(--bg);
  background-size: 36px 36px, 36px 36px, auto, auto, auto;
  color: var(--text);
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
  border-bottom: 1px solid var(--line);
  background: rgba(6, 17, 21, 0.9);
  backdrop-filter: blur(16px);
}

.brand {
  font-size: clamp(1.2rem, 2vw, 1.7rem);
  font-weight: 700;
}

.nav-links {
  display: flex;
  gap: clamp(1rem, 3vw, 2.5rem);
  color: var(--text);
  font-size: 0.95rem;
}

.nav-links a {
  padding: 1.6rem 0;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
  outline: none;
}

.hero,
.section,
footer {
  width: min(100% - 2rem, 1180px);
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(24rem, 1.12fr);
  gap: clamp(2rem, 7vw, 5.5rem);
  align-items: center;
  min-height: calc(100vh - 76px);
  padding: clamp(4rem, 8vw, 6.5rem) 0;
}

.hero h1 {
  max-width: 11ch;
  margin: 0;
  font-size: clamp(2.8rem, 7vw, 5.9rem);
  line-height: 1.05;
}

.hero h1::after {
  display: block;
  width: 3.6rem;
  height: 2px;
  margin: 2rem 0;
  background: var(--warm);
  content: "";
}

.hero p {
  max-width: 37rem;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.45vw, 1.24rem);
}

.hero-actions,
.link-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.25rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.55rem;
  padding: 0 1.5rem;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 1rem;
  cursor: pointer;
  transition: border-color 160ms ease, color 160ms ease, transform 160ms ease, background 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
  border-color: var(--accent);
  color: var(--accent);
  outline: none;
}

.button.primary {
  min-width: 12rem;
  color: var(--accent);
}

.button.secondary {
  border-color: rgba(244, 251, 251, 0.5);
}

.map-panel {
  position: relative;
  min-height: 36rem;
  border: 1px solid rgba(53, 232, 211, 0.16);
  background:
    linear-gradient(rgba(53, 232, 211, 0.065) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 232, 211, 0.065) 1px, transparent 1px),
    rgba(6, 17, 21, 0.42);
  background-size: 28px 28px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.axis,
.signal-line {
  position: absolute;
  background: var(--line);
}

.axis.horizontal {
  top: 50%;
  left: 8%;
  width: 84%;
  height: 1px;
}

.axis.vertical {
  top: 8%;
  left: 50%;
  width: 1px;
  height: 84%;
}

.signal-line {
  height: 1px;
  transform-origin: left center;
}

.l1 {
  top: 32%;
  left: 26%;
  width: 48%;
  transform: rotate(20deg);
}

.l2 {
  top: 66%;
  left: 19%;
  width: 56%;
  transform: rotate(-17deg);
}

.l3 {
  top: 47%;
  left: 21%;
  width: 58%;
  transform: rotate(42deg);
}

.map-node {
  position: absolute;
  z-index: 2;
  width: clamp(9.2rem, 17vw, 12rem);
  min-height: 5.9rem;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: rgba(7, 17, 22, 0.9);
  box-shadow: 0 18px 56px rgba(0, 0, 0, 0.28);
  transition: border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.map-node:hover,
.map-node[data-active="true"],
.map-node:focus-visible {
  transform: translateY(-2px);
  border-color: var(--accent);
  outline: none;
}

.map-node span,
.status,
dt {
  display: block;
  color: var(--muted);
  font-size: 0.74rem;
}

.map-node strong {
  display: block;
  margin-top: 0.35rem;
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.35;
}

.node-platforms {
  top: 12%;
  left: 12%;
}

.node-legacy {
  top: 14%;
  right: 10%;
  border-color: rgba(245, 165, 36, 0.62);
}

.node-language {
  top: 42%;
  left: 8%;
}

.node-api {
  bottom: 16%;
  left: 11%;
}

.node-data {
  right: 8%;
  bottom: 18%;
  border-color: rgba(245, 165, 36, 0.62);
}

.node-service {
  right: 8%;
  top: 36%;
}

.section {
  padding: clamp(3.2rem, 7vw, 5.5rem) 0;
  border-top: 1px solid var(--line);
}

.section h2 {
  margin: 0;
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  line-height: 1.2;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(18rem, 0.3fr);
  gap: 2rem;
  align-items: end;
}

.section-heading p,
.artifact-copy,
.links p,
footer p {
  margin: 0;
  color: var(--muted);
}

.line-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 2rem;
  background: var(--line);
  border: 1px solid var(--line);
}

.line-grid article {
  min-height: 16rem;
  padding: 1.35rem;
  background: rgba(7, 17, 22, 0.88);
}

.line-grid span {
  display: block;
  color: var(--warm);
  font-size: 0.85rem;
}

.line-grid h3,
.artifact h3 {
  margin: 1.4rem 0 0.45rem;
  font-size: 1.12rem;
  line-height: 1.35;
}

.line-grid p {
  margin: 0;
  color: var(--muted);
}

.artifact-list {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
}

.artifact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.45fr);
  gap: 2rem;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--line);
}

.status {
  color: var(--accent);
  text-transform: uppercase;
}

.status.experiment {
  color: var(--warm);
}

.status.fresh {
  color: var(--danger);
}

.artifact h3 a {
  border-bottom: 1px solid rgba(53, 232, 211, 0.35);
}

.artifact-copy a,
.artifact h3 a:hover,
.artifact h3 a:focus-visible {
  color: var(--accent);
}

.artifact-copy a {
  border-bottom: 1px solid rgba(53, 232, 211, 0.35);
}

.artifact-copy a:hover,
.artifact-copy a:focus-visible,
.artifact h3 a:hover,
.artifact h3 a:focus-visible {
  color: var(--accent);
  outline: none;
}

.artifact h3 {
  margin-top: 0.4rem;
}

.artifact dl {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding-left: 1.5rem;
  border-left: 1px solid var(--line);
}

dd {
  margin: 0;
}

dd a {
  color: var(--accent);
}

.principles {
  display: grid;
  grid-template-columns: minmax(0, 0.34fr) minmax(0, 0.66fr);
  gap: 3rem;
}

.principles ol {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: principle;
}

.principles li {
  counter-increment: principle;
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: 1rem;
  align-items: center;
  min-height: 4.5rem;
  border-bottom: 1px solid var(--line);
}

.principles li::before {
  color: var(--warm);
  content: "0" counter(principle);
}

.links {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border: 1px solid rgba(245, 165, 36, 0.38);
  border-radius: 6px;
  padding: clamp(1.4rem, 4vw, 2rem);
  background: rgba(9, 24, 31, 0.58);
}

.links .link-actions {
  margin-top: 0;
}

footer {
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--line);
  font-size: 0.86rem;
}

@media (max-width: 900px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
    gap: 0.7rem;
    padding-top: 1rem;
    padding-bottom: 1rem;
  }

  .nav-links {
    width: 100%;
    justify-content: space-between;
    gap: 0.5rem;
    font-size: 0.83rem;
  }

  .nav-links a {
    padding: 0.35rem 0;
  }

  .hero,
  .section-heading,
  .principles {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 3rem;
  }

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

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

  .artifact dl {
    padding-left: 0;
    padding-top: 1rem;
    border-top: 1px solid var(--line);
    border-left: 0;
  }
}

@media (max-width: 620px) {
  .hero,
  .section,
  footer {
    width: min(100% - 1.25rem, 1180px);
  }

  .button {
    width: 100%;
  }

  .map-panel {
    min-height: 32rem;
  }

  .map-node {
    width: min(8.55rem, calc((100% - 2.25rem) / 2));
    min-height: 5.4rem;
    padding: 0.72rem;
  }

  .map-node span {
    font-size: 0.68rem;
  }

  .map-node strong {
    font-size: 0.82rem;
  }

  .node-platforms {
    top: 7%;
    left: 5%;
  }

  .node-legacy {
    top: 7%;
    right: 5%;
  }

  .node-language {
    top: 34%;
    left: 5%;
  }

  .node-service {
    top: 34%;
    right: 5%;
  }

  .node-api {
    bottom: 7%;
    left: 5%;
  }

  .node-data {
    right: 5%;
    bottom: 7%;
  }

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

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