:root {
  color-scheme: dark;
  --background: #07141d;
  --background-deep: #040b11;
  --surface: #0c202b;
  --surface-raised: #11303f;
  --ink: #f5fbff;
  --muted: #b4c9d4;
  --accent: #70e3c1;
  --accent-strong: #25c59b;
  --blue: #72b9ff;
  --amber: #ffd580;
  --line: #285064;
  --line-bright: #3b7289;
  --shadow: 0 24px 72px rgba(0, 0, 0, 0.3);
  --radius-small: 0.65rem;
  --radius: 1.1rem;
  --radius-large: 1.7rem;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--background);
  color: var(--ink);
}

* { box-sizing: border-box; }

html {
  min-width: 20rem;
  background:
    radial-gradient(circle at 88% 4%, rgba(112, 227, 193, 0.16), transparent 30rem),
    radial-gradient(circle at 8% 32%, rgba(114, 185, 255, 0.12), transparent 26rem),
    var(--background);
  scroll-behavior: smooth;
}

body { margin: 0; color: var(--ink); }

a {
  color: var(--accent);
  text-decoration-thickness: 0.09em;
  text-underline-offset: 0.2em;
}

a:hover { color: #c1ffec; }

a:focus-visible,
button:focus-visible,
[tabindex="0"]:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 4px;
  border-radius: 0.2rem;
}

code,
pre { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }

code { color: #aeefff; overflow-wrap: anywhere; }

pre {
  max-width: 100%;
  margin: 0;
  overflow: auto;
  white-space: pre;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.75rem 1rem;
  transform: translateY(-180%);
  border-radius: var(--radius-small);
  background: var(--ink);
  color: var(--background-deep);
  font-weight: 800;
}

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

.site-header {
  border-bottom: 1px solid rgba(112, 227, 193, 0.17);
  background: rgba(4, 11, 17, 0.82);
  backdrop-filter: blur(14px);
}

.header-inner,
.site-footer {
  width: min(100% - 3rem, 76rem);
  margin-inline: auto;
}

.header-inner {
  display: flex;
  min-height: 5rem;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.wordmark {
  display: inline-flex;
  flex-direction: column;
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 850;
  line-height: 1.05;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.wordmark-subtitle {
  margin-top: 0.28rem;
  color: var(--accent);
  font-size: 0.63rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem;
}

.top-nav a {
  min-height: 2.75rem;
  padding: 0.65rem 0.8rem;
  border-radius: 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.top-nav a:hover { background: var(--surface); color: var(--ink); }

main {
  width: min(100% - 3rem, 76rem);
  margin-inline: auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(20rem, 0.88fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
  padding: clamp(4rem, 9vw, 7.5rem) 0 clamp(3.5rem, 7vw, 6rem);
}

.hero-copy,
.install-panel,
.section,
.method-card,
.boundary-grid article,
.example-grid article,
.callout,
.chain div { min-width: 0; }

.eyebrow,
.panel-kicker,
.fact-label,
.method-kind {
  margin: 0 0 0.85rem;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p { overflow-wrap: anywhere; }

h1,
h2,
h3 { line-height: 1.12; text-wrap: balance; }

h1 {
  max-width: 13ch;
  margin: 0;
  font-size: clamp(3rem, 8vw, 6.3rem);
  letter-spacing: -0.065em;
}

h1 span { color: var(--accent); }

h2 {
  margin: 0;
  font-size: clamp(1.9rem, 4vw, 3rem);
  letter-spacing: -0.035em;
}

h3 { margin: 0; font-size: 1.08rem; }

.lead {
  max-width: 43rem;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.3rem);
  line-height: 1.65;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1.8rem 0 0;
  padding: 0;
  list-style: none;
}

.badges li {
  padding: 0.38rem 0.72rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(17, 48, 63, 0.72);
  color: #e0eef4;
  font-size: 0.76rem;
  font-weight: 750;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1rem;
  border: 1px solid var(--line-bright);
  border-radius: var(--radius-small);
  font-weight: 800;
  text-decoration: none;
}

.button.primary { border-color: var(--accent); background: var(--accent); color: #032219; }
.button.secondary { background: var(--surface); color: var(--ink); }

.install-panel {
  padding: clamp(1.3rem, 3vw, 2rem);
  border: 1px solid var(--line-bright);
  border-radius: var(--radius-large);
  background: linear-gradient(145deg, rgba(17, 48, 63, 0.94), rgba(8, 26, 35, 0.98));
  box-shadow: var(--shadow);
}

.install-panel h2 { font-size: 1.55rem; }

.command-block {
  margin-top: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--background-deep);
}

.command-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 0.8rem;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
}

.command-heading button {
  min-height: 2rem;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--line-bright);
  border-radius: 0.4rem;
  background: var(--surface-raised);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
}

.command-block pre { padding: 1rem; font-size: 0.82rem; }
.microcopy, .copy-status { color: var(--muted); font-size: 0.82rem; line-height: 1.55; }
.microcopy { margin: 1.15rem 0 0; }
.copy-status { margin: 0.75rem 0 0; }

.status-callout {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  align-items: center;
  padding: 1.4rem;
  border: 1px solid rgba(112, 227, 193, 0.42);
  border-radius: var(--radius);
  background: rgba(26, 94, 78, 0.18);
}

.status-mark {
  display: grid;
  width: 3.3rem;
  height: 3.3rem;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: #032219;
  font-size: 1.45rem;
  font-weight: 900;
}

.status-callout h2 { font-size: 1.35rem; }
.status-callout p { margin: 0.5rem 0 0; color: var(--muted); line-height: 1.6; }

.section { padding: clamp(4.5rem, 9vw, 8rem) 0 0; }
.section-heading { max-width: 49rem; }
.section-heading.compact { max-width: 38rem; }
.section-heading > p:last-child { margin: 1rem 0 0; color: var(--muted); font-size: 1.05rem; line-height: 1.7; }

.method-grid,
.boundary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.method-card,
.boundary-grid article,
.example-grid article,
.callout {
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(17, 48, 63, 0.7), rgba(8, 27, 36, 0.88));
}

.method-card.featured { border-color: rgba(112, 227, 193, 0.52); }
.method-card p:last-child,
.boundary-grid p:last-child,
.callout p { margin: 0.75rem 0 0; color: var(--muted); line-height: 1.6; }

.example-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.example-grid pre { padding: 0.2rem 0; font-size: 0.82rem; line-height: 1.65; }

.table-wrap {
  max-width: 100%;
  margin-top: 2rem;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

table { width: 100%; min-width: 48rem; border-collapse: collapse; background: rgba(8, 27, 36, 0.72); }
caption { padding: 1rem; color: var(--muted); font-size: 0.85rem; text-align: left; }
th, td { padding: 0.9rem 1rem; border-top: 1px solid var(--line); text-align: left; vertical-align: top; }
thead th { color: var(--accent); font-size: 0.76rem; letter-spacing: 0.08em; text-transform: uppercase; }
tbody th { color: var(--ink); }
tbody td { color: var(--muted); }

.chain {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 0.75rem;
  align-items: center;
  margin-top: 2rem;
}

.chain div {
  display: flex;
  min-height: 8rem;
  flex-direction: column;
  justify-content: center;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.chain div:first-child { border-color: var(--accent); }
.chain span:not(.chain-arrow) { color: var(--accent); font-size: 0.72rem; font-weight: 850; letter-spacing: 0.12em; text-transform: uppercase; }
.chain strong { margin-top: 0.5rem; overflow-wrap: anywhere; }
.chain small { margin-top: 0.5rem; color: var(--muted); line-height: 1.45; }
.chain-arrow { color: var(--blue); font-size: 1.5rem; }

.callout { margin-top: 1rem; border-color: rgba(114, 185, 255, 0.45); }

.resource-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem 1.5rem;
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
}

.resource-list a {
  display: block;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
  font-weight: 750;
}

.site-footer {
  margin-top: clamp(5rem, 10vw, 9rem);
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.6;
}

.site-footer p { max-width: 65rem; margin: 0.4rem 0; }

@media (max-width: 54rem) {
  .hero { grid-template-columns: 1fr; }
  .chain { grid-template-columns: 1fr; }
  .chain-arrow { transform: rotate(90deg); justify-self: center; }
}

@media (max-width: 42rem) {
  .header-inner { align-items: flex-start; flex-direction: column; padding: 1rem 0; }
  .top-nav { justify-content: flex-start; }
  .method-grid, .boundary-grid, .example-grid, .resource-list { grid-template-columns: 1fr; }
  .status-callout { grid-template-columns: 1fr; }
  h1 { font-size: clamp(2.7rem, 15vw, 4.2rem); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

@media print {
  :root { color-scheme: light; background: white; color: black; }
  body { background: white; color: black; }
  .site-header, .hero-actions, .command-heading button, .copy-status { display: none; }
  main, .site-footer { width: 100%; }
  .hero, .section { padding-top: 1.5rem; }
  .install-panel, .method-card, .boundary-grid article, .example-grid article, .callout, .chain div, .status-callout { background: white; box-shadow: none; color: black; }
  a { color: black; }
}