:root {
  color-scheme: dark;
  --bg: #0b0f15;
  --bg-soft: #111723;
  --surface: rgba(15, 20, 30, 0.92);
  --surface-alt: rgba(20, 27, 38, 0.88);
  --surface-strong: #131b27;
  --border: rgba(193, 206, 229, 0.14);
  --border-strong: rgba(193, 206, 229, 0.22);
  --text: #f5f1e8;
  --muted: #aeb8c8;
  --faint: #7d889a;
  --violet: #9f8cff;
  --violet-strong: #7b61ff;
  --copper: #e0a06d;
  --copper-soft: #f0bc93;
  --cyan: #83d6ee;
  --green: #8ad9b6;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.36);
  --radius: 10px;
  --content: 1160px;
  --gap: clamp(1rem, 1.6vw, 1.5rem);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background:
    linear-gradient(180deg, #0b0f15 0%, #0b1018 50%, #0d121a 100%);
  color: var(--text);
  letter-spacing: 0;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(
      90deg,
      rgba(159, 140, 255, 0.045) 0,
      rgba(159, 140, 255, 0.045) 1px,
      transparent 1px,
      transparent 120px
    ),
    repeating-linear-gradient(
      0deg,
      rgba(224, 160, 109, 0.03) 0,
      rgba(224, 160, 109, 0.03) 1px,
      transparent 1px,
      transparent 120px
    );
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.45), rgba(0, 0, 0, 0.04));
  opacity: 0.9;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

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

code,
pre {
  font-family: ui-monospace, SFMono-Regular, 'SF Mono', Consolas, 'Liberation Mono', Menlo, monospace;
  letter-spacing: 0;
}

.skip-link {
  position: absolute;
  inset-inline-start: 1rem;
  inset-block-start: 1rem;
  transform: translateY(-220%);
  padding: 0.75rem 1rem;
  background: var(--surface-strong);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  z-index: 20;
}

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

.page-shell {
  width: min(100%, calc(var(--content) + 2rem));
  margin-inline: auto;
  padding: 1rem clamp(1rem, 3vw, 1.5rem) 2rem;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 0 1.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  min-width: 0;
  text-decoration: none;
}

.brand img {
  width: 34px;
  height: 34px;
  flex: none;
}

.brand strong {
  display: block;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 1rem;
  line-height: 1.1;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 0.84rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.6rem;
  justify-content: center;
  margin-left: auto;
}

.header-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  flex: none;
}

.site-nav a,
.github-star,
.version-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.25rem;
  padding: 0.45rem 0.8rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.github-star:hover,
.github-star:focus-visible,
.version-pill:hover,
.version-pill:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.035);
  border-color: var(--border);
}

.github-star {
  gap: 0.42rem;
  color: var(--text);
  border-color: rgba(224, 160, 109, 0.34);
  background: rgba(224, 160, 109, 0.08);
  font-weight: 700;
}

.github-star:hover,
.github-star:focus-visible {
  border-color: rgba(224, 160, 109, 0.48);
  background: rgba(224, 160, 109, 0.13);
}

.github-star-icon {
  width: 1rem;
  height: 1rem;
  fill: var(--copper-soft);
  flex: none;
}

.version-pill {
  color: var(--text);
  border-color: rgba(159, 140, 255, 0.32);
  background: rgba(159, 140, 255, 0.08);
}

main {
  padding-bottom: 2.5rem;
}

.hero,
.page-hero {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2.5rem);
  align-items: center;
  padding: clamp(2.5rem, 6vw, 4.5rem) 0 clamp(2rem, 5vw, 3.5rem);
}

.hero {
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
}

.hero-copy,
.hero-visual,
.page-hero {
  position: relative;
}

.eyebrow {
  margin: 0 0 0.85rem;
  color: var(--copper-soft);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.76rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  letter-spacing: 0;
  text-wrap: balance;
}

h1 {
  font-size: clamp(3rem, 6.8vw, 5.85rem);
  line-height: 0.93;
  max-width: 11ch;
}

.lede {
  margin: 1.1rem 0 0;
  max-width: 58ch;
  font-size: clamp(1.02rem, 1.6vw, 1.16rem);
  color: var(--muted);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.8rem;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.025);
  color: var(--text);
  font-weight: 600;
  transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.button:hover,
.button:focus-visible,
.route-item:hover,
.route-item:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(159, 140, 255, 0.35);
}

.button-primary {
  background: linear-gradient(135deg, rgba(159, 140, 255, 0.22), rgba(123, 97, 255, 0.22));
  border-color: rgba(159, 140, 255, 0.38);
}

.button-secondary {
  background: rgba(224, 160, 109, 0.08);
  border-color: rgba(224, 160, 109, 0.3);
}

.button-ghost {
  color: var(--muted);
}

.status-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
  margin: 1.75rem 0 0;
}

.status-strip > div,
.tile,
.persona,
.route-item,
.panel,
.callout {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(19, 27, 39, 0.92), rgba(13, 18, 27, 0.9));
  box-shadow: var(--shadow);
}

.status-strip > div {
  padding: 0.95rem 1rem;
}

.status-strip dt {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.status-strip dd {
  margin: 0.35rem 0 0;
  font-size: 0.98rem;
}

.status-strip code {
  white-space: nowrap;
  font-size: 0.92em;
}

.hero-visual {
  display: grid;
  gap: 0.95rem;
}

.panel,
.callout {
  padding: 1rem;
}

.panel-kicker {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 0.9rem;
}

.panel-kicker .accent {
  color: var(--copper-soft);
}

.diagram {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) - 2px);
  background: rgba(8, 12, 18, 0.76);
}

.code-block {
  margin: 0.95rem 0 0;
  padding: 1rem;
  border-radius: calc(var(--radius) - 2px);
  border: 1px solid var(--border);
  background: #090d13;
  color: #f5efe4;
  overflow: auto;
  font-size: 0.84rem;
  line-height: 1.48;
}

.section,
.band {
  padding: clamp(2rem, 5vw, 3rem) 0;
  border-top: 1px solid var(--border);
}

.section-head {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 1.35rem;
}

.section-head h2 {
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  line-height: 1.05;
}

.section-head p:last-child {
  margin: 0;
  max-width: 66ch;
  color: var(--muted);
}

.grid {
  display: grid;
  gap: var(--gap);
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

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

.tile,
.persona {
  padding: 1rem;
}

.tile h3,
.persona h3 {
  font-size: 1.18rem;
  line-height: 1.2;
}

.tile p,
.persona p {
  margin: 0.75rem 0 0;
  color: var(--muted);
}

.tile a,
.route-item span {
  color: var(--copper-soft);
}

.persona-label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0 0 0.85rem;
  color: var(--violet);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  font-weight: 700;
}

.route-list {
  display: grid;
  gap: 0.8rem;
}

.route-item {
  display: grid;
  gap: 0.2rem;
  padding: 1rem 1.05rem;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.route-item strong {
  font-size: 1.02rem;
}

.route-item span {
  color: var(--muted);
}

.steps,
.bullet-list {
  margin: 0.8rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.steps li + li,
.bullet-list li + li {
  margin-top: 0.5rem;
}

.callout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 1rem 1.5rem;
  align-items: start;
  padding: clamp(1.35rem, 2.4vw, 1.9rem) clamp(1.3rem, 2.8vw, 2rem);
}

.callout > div {
  max-width: 26ch;
}

.callout h2 {
  font-size: clamp(1.7rem, 2.8vw, 2.4rem);
  line-height: 1.08;
}

.callout p {
  margin: 0.3rem 0 0;
  color: var(--muted);
  max-width: 58ch;
  line-height: 1.65;
}

.site-footer {
  display: grid;
  gap: 0.5rem;
  padding: 1.5rem 0 0.75rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer strong,
.site-footer code {
  color: var(--text);
}

.site-footer p {
  margin: 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
}

.footer-links a {
  color: var(--copper-soft);
  text-decoration: none;
}

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

code {
  padding: 0.1rem 0.35rem;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

@media (max-width: 1100px) {
  .hero,
  .grid.four {
    grid-template-columns: 1fr 1fr;
  }

  .status-strip {
    grid-template-columns: 1fr;
  }

  .site-header {
    align-items: flex-start;
  }

  .site-nav {
    justify-content: flex-start;
    margin-left: 0;
  }

  .header-actions {
    margin-left: auto;
  }
}

@media (max-width: 820px) {
  .hero,
  .grid.two,
  .grid.three,
  .grid.four {
    grid-template-columns: 1fr;
  }

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

  .site-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
  }

  .site-nav a {
    justify-content: center;
  }

  .header-actions {
    margin-left: 0;
  }

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

  .button {
    width: 100%;
  }

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

  .callout > div {
    max-width: none;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .button,
  .route-item,
  .site-nav a,
  .github-star,
  .version-pill {
    transition-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
  }
}