:root {
  color-scheme: dark;
  --background: #07111c;
  --background-deep: #040b12;
  --surface: #0c1a29;
  --surface-raised: #10273a;
  --surface-soft: #0e2131;
  --ink: #f7fbff;
  --muted: #b8c8d9;
  --accent: #70ddff;
  --accent-strong: #19bee9;
  --green: #78e5b5;
  --amber: #ffd27a;
  --line: #29465e;
  --line-bright: #3b6683;
  --shadow: 0 24px 72px rgba(0, 0, 0, 0.28);
  --radius-small: 0.65rem;
  --radius: 1.1rem;
  --radius-large: 1.65rem;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  line-height: 1.6;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--background-deep);
}

body {
  min-width: 18rem;
  margin: 0;
  background:
    radial-gradient(circle at 88% 5%, rgba(25, 190, 233, 0.17), transparent 31rem),
    radial-gradient(circle at 6% 32%, rgba(44, 123, 163, 0.12), transparent 25rem),
    var(--background);
  color: var(--ink);
}

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

a:hover {
  color: #b9efff;
}

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: #a9eaff;
  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, 221, 255, 0.17);
  background: rgba(4, 11, 18, 0.8);
  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, 1.13fr) minmax(20rem, 0.87fr);
  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,
.fact-grid article,
.boundary-grid article,
.callout {
  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: 12ch;
  margin: 0;
  font-size: clamp(3.1rem, 8vw, 6.5rem);
  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: 1.06rem;
}

.lead {
  max-width: 42rem;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.3rem);
}

.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(16, 39, 58, 0.72);
  color: #dce9f3;
  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: 2.9rem;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1rem;
  border: 1px solid transparent;
  border-radius: 0.7rem;
  font-size: 0.9rem;
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  background: var(--accent);
  color: #032432;
}

.button.primary:hover {
  background: #a1ecff;
  color: #021820;
}

.button.secondary {
  border-color: var(--line-bright);
  background: var(--surface);
  color: var(--ink);
}

.install-panel {
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--line-bright);
  border-radius: var(--radius-large);
  background: linear-gradient(145deg, rgba(16, 39, 58, 0.97), rgba(8, 21, 33, 0.97));
  box-shadow: var(--shadow);
}

.install-panel h2 {
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

.command-block {
  margin-top: 1.4rem;
}

.command-heading {
  display: flex;
  min-height: 2rem;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.45rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
}

.command-heading button {
  min-height: 2.25rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--line-bright);
  border-radius: 0.5rem;
  background: var(--surface-raised);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
}

.command-heading button:hover {
  border-color: var(--accent);
}

.command-block pre {
  padding: 1rem;
  border: 1px solid #213d52;
  border-radius: 0.7rem;
  background: var(--background-deep);
  font-size: 0.8rem;
}

.microcopy,
.copy-status {
  color: var(--muted);
  font-size: 0.8rem;
}

.microcopy {
  margin: 1.2rem 0 0;
}

.copy-status {
  margin: 0.6rem 0 0;
}

.status-callout {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1.25rem;
  align-items: center;
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid rgba(120, 229, 181, 0.42);
  border-radius: var(--radius);
  background: rgba(20, 66, 56, 0.28);
}

.status-callout h2 {
  font-size: 1.3rem;
  letter-spacing: -0.015em;
}

.status-callout p {
  margin: 0.55rem 0 0;
  color: var(--muted);
}

.status-mark {
  display: grid;
  width: 3.4rem;
  height: 3.4rem;
  place-items: center;
  border: 1px solid rgba(120, 229, 181, 0.62);
  border-radius: 50%;
  color: var(--green);
  font-size: 1.1rem;
  font-weight: 900;
}

.section {
  padding: clamp(4rem, 9vw, 7rem) 0;
  border-bottom: 1px solid rgba(41, 70, 94, 0.72);
}

.section-heading {
  max-width: 48rem;
  margin-bottom: 2.5rem;
}

.section-heading.compact {
  margin-bottom: 1.5rem;
}

.section-heading > p:last-child {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.flow {
  display: flex;
  align-items: stretch;
  gap: 0.8rem;
  margin: 2.5rem 0;
}

.flow > div {
  display: flex;
  min-width: 0;
  flex: 1 1 0;
  flex-direction: column;
  gap: 0.35rem;
  justify-content: center;
  min-height: 8rem;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.flow-index {
  color: var(--accent);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.73rem;
}

.flow small {
  color: var(--muted);
}

.flow-arrow {
  align-self: center;
  color: var(--accent);
  font-size: 1.5rem;
}

.fact-grid,
.method-grid,
.boundary-grid,
.split-callouts,
.reference-grid {
  display: grid;
  gap: 1rem;
}

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

.fact-grid article,
.boundary-grid article,
.callout {
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(12, 26, 41, 0.72);
}

.fact-grid p:last-child,
.method-card p:last-child,
.boundary-grid p,
.callout p {
  margin: 0.65rem 0 0;
  color: var(--muted);
}

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

.method-card {
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.method-card.featured {
  border-color: rgba(120, 229, 181, 0.58);
  background: linear-gradient(145deg, rgba(21, 66, 57, 0.48), var(--surface));
}

.method-card h3 {
  font-size: 0.96rem;
}

.method-kind {
  margin-bottom: 0.7rem;
  font-size: 0.66rem;
}

.property-note {
  display: grid;
  grid-template-columns: minmax(10rem, 0.35fr) minmax(0, 1fr);
  gap: 1.25rem;
  margin-top: 1rem;
  padding: 1.25rem 1.4rem;
  border-left: 3px solid var(--accent);
  background: rgba(16, 39, 58, 0.62);
}

.property-note p {
  margin: 0;
}

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

table {
  width: 100%;
  min-width: 42rem;
  border-collapse: collapse;
  text-align: left;
}

caption {
  padding: 1rem 1.2rem;
  color: var(--muted);
  font-size: 0.83rem;
  text-align: left;
}

th,
td {
  padding: 1rem 1.2rem;
  border-top: 1px solid var(--line);
  vertical-align: top;
}

thead th {
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

tbody th {
  color: var(--ink);
}

tbody td {
  color: var(--muted);
}

.delta-row {
  background: rgba(120, 229, 181, 0.1);
}

.table-note,
.source-link {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

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

.callout.positive {
  border-color: rgba(120, 229, 181, 0.42);
}

.callout.caution {
  border-color: rgba(255, 210, 122, 0.42);
}

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

.migration-banner {
  display: flex;
  gap: 2rem;
  align-items: center;
  justify-content: space-between;
  margin: clamp(4rem, 9vw, 7rem) 0 0;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid var(--line-bright);
  border-radius: var(--radius-large);
  background: linear-gradient(135deg, var(--surface-raised), rgba(12, 26, 41, 0.72));
  box-shadow: var(--shadow);
}

.migration-banner p:not(.eyebrow) {
  max-width: 48rem;
  margin: 0.75rem 0 0;
  color: var(--muted);
}

.migration-banner .button {
  flex: 0 0 auto;
}

.references {
  border-bottom: 0;
}

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

.reference-grid a {
  display: flex;
  min-width: 0;
  min-height: 7rem;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  text-decoration: none;
}

.reference-grid a:hover {
  border-color: var(--accent);
  background: var(--surface-raised);
}

.reference-grid span {
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: 3rem;
  padding-block: 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer p {
  margin: 0.8rem 0 0;
  font-size: 0.84rem;
}

.footer-mark {
  width: max-content;
}

.disclaimer {
  align-self: end;
}

@media (max-width: 62rem) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 54rem;
  }

  .method-grid,
  .boundary-grid,
  .reference-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 44rem) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 1rem;
  }

  .top-nav {
    justify-content: flex-start;
  }

  main,
  .header-inner,
  .site-footer {
    width: min(100% - 2rem, 76rem);
  }

  .hero {
    grid-template-columns: minmax(0, 1fr);
    padding-top: 3.5rem;
  }

  h1 {
    font-size: clamp(2.65rem, 15vw, 4.5rem);
  }

  .flow {
    flex-direction: column;
  }

  .flow-arrow {
    transform: rotate(90deg);
  }

  .fact-grid,
  .method-grid,
  .boundary-grid,
  .split-callouts,
  .reference-grid,
  .property-note,
  .site-footer {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .migration-banner .button {
    width: 100%;
  }
}

@media (max-width: 28rem) {
  .top-nav {
    display: grid;
    width: 100%;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .top-nav a {
    padding-inline: 0.45rem;
  }

  .status-callout {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-actions,
  .hero-actions .button {
    width: 100%;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media print {
  :root {
    color-scheme: light;
  }

  body {
    background: #fff;
    color: #111;
  }

  .site-header,
  .hero-actions,
  .command-heading button,
  .copy-status {
    display: none !important;
  }

  main,
  .site-footer {
    width: 100%;
  }

  a,
  code,
  .eyebrow,
  .panel-kicker,
  .fact-label,
  .method-kind {
    color: #064e65;
  }

  .install-panel,
  .method-card,
  .fact-grid article,
  .boundary-grid article,
  .callout,
  .table-wrap,
  .reference-grid a {
    background: #fff;
    color: #111;
    box-shadow: none;
  }
}