:root {
  color-scheme: light;
  --ink: #111513;
  --muted: #657069;
  --paper: #fffdf7;
  --panel: #fffef9;
  --line: #e4ebdf;
  --soft-line: rgba(17, 21, 19, 0.06);
  --green: #14765c;
  --blue: #286c89;
  --red: #d24b35;
  --gold: #bb8f2d;
  --cyan: #4aa6a1;
  --surface: rgba(255, 255, 250, 0.82);
  --shadow: 0 34px 110px rgba(25, 35, 31, 0.13);
  --lift: 0 24px 70px rgba(25, 35, 31, 0.15);
  --inset: inset 0 1px 0 rgba(255, 255, 255, 0.74);
  --radius: 8px;
  --max: 1120px;
  --font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-serif: Georgia, "Times New Roman", "Noto Serif SC", "Source Han Serif SC", serif;
  --font-mono: "Cascadia Code", "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 14% 8%, rgba(74, 166, 161, 0.16), transparent 28rem),
    radial-gradient(circle at 88% 20%, rgba(210, 75, 53, 0.09), transparent 26rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(255, 253, 247, 0.93) 44%, rgba(248, 254, 249, 0.97)),
    linear-gradient(120deg, rgba(74, 166, 161, 0.12), transparent 31%, rgba(255, 248, 238, 0.78) 62%, rgba(210, 75, 53, 0.055)),
    repeating-linear-gradient(90deg, rgba(17, 21, 19, 0.012) 0 1px, transparent 1px 92px),
    repeating-linear-gradient(180deg, rgba(17, 21, 19, 0.01) 0 1px, transparent 1px 92px),
    var(--paper);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(40, 108, 137, 0.28);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 40;
  padding: 10px 12px;
  color: #fff;
  background: var(--ink);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 800;
  transform: translateY(-140%);
  transition: transform 160ms ease;
}

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

.reading-progress {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 50;
  height: 3px;
  background: transparent;
  pointer-events: none;
}

.reading-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--green), var(--blue), var(--red));
  transition: width 120ms linear;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  width: 100%;
  margin: 0;
  padding: 14px max(18px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid var(--soft-line);
  background: rgba(255, 255, 250, 0.9);
  backdrop-filter: blur(18px);
  box-shadow: 0 10px 34px rgba(25, 35, 31, 0.055);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  position: relative;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: #fff;
  background:
    linear-gradient(135deg, rgba(20, 118, 92, 0.92), rgba(40, 108, 137, 0.9)),
    var(--ink);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 800;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.24),
    0 10px 24px rgba(20, 118, 92, 0.22);
}

.brand-mark::after {
  position: absolute;
  right: 7px;
  bottom: 7px;
  width: 5px;
  height: 5px;
  content: "";
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.24);
}

.brand-copy {
  display: grid;
  gap: 1px;
}

.brand-copy strong {
  font-size: 0.92rem;
}

.brand-copy small {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 26px;
  color: var(--muted);
  font-size: 0.92rem;
}

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

.nav a[aria-current="page"] {
  color: var(--ink);
}

.nav a {
  position: relative;
  padding: 8px 0;
}

.nav a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 1px;
  content: "";
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.nav a:hover::after {
  transform: scaleX(1);
}

.site-state {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 11px;
  border: 1px solid var(--soft-line);
  border-radius: 999px;
  color: #3f4c46;
  background: rgba(255, 255, 250, 0.76);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 800;
  white-space: nowrap;
}

.site-state i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(20, 118, 92, 0.12);
}

.hero {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--soft-line);
  border-bottom: 1px solid var(--soft-line);
  background:
    radial-gradient(circle at 50% 12%, rgba(255, 255, 255, 0.86), transparent 28rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.66), rgba(250, 253, 247, 0.78)),
    linear-gradient(112deg, rgba(74, 166, 161, 0.16), transparent 34%, rgba(255, 246, 236, 0.84) 66%, rgba(210, 75, 53, 0.08));
}

.hero::before {
  position: absolute;
  inset: 28px max(18px, calc((100vw - var(--max)) / 2)) auto;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(20, 118, 92, 0.24), rgba(40, 108, 137, 0.2), transparent);
}

.signal-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.36;
  pointer-events: none;
}

.hero-shell {
  position: relative;
  z-index: 2;
  display: grid;
  justify-items: center;
  width: min(100% - 36px, var(--max));
  margin: 0 auto;
  padding: 74px 0 58px;
  text-align: center;
}

.kicker,
.eyebrow {
  margin: 0 0 18px;
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 820px;
  margin-bottom: 18px;
  font-family: var(--font-serif);
  font-size: clamp(3.25rem, 7.6vw, 6.25rem);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.hero-lede {
  max-width: 690px;
  margin-bottom: 26px;
  color: #39443f;
  font-size: clamp(1.08rem, 1.6vw, 1.28rem);
  line-height: 1.78;
  text-wrap: pretty;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 16px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: 0.94rem;
  font-weight: 700;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

.button.primary {
  color: #fff;
  background: var(--ink);
}

.button.ghost {
  background: rgba(255, 255, 255, 0.58);
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 30px rgba(25, 35, 31, 0.12);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 28px;
}

.hero-meta span {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 0 10px;
  border: 1px solid rgba(17, 21, 19, 0.1);
  border-radius: 999px;
  color: #4e5a53;
  background: rgba(255, 255, 255, 0.58);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
}

.console-preview {
  position: relative;
  width: min(100%, 980px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(251, 253, 247, 0.84)),
    var(--panel);
  box-shadow: var(--shadow), 0 0 0 8px rgba(255, 255, 255, 0.24);
  backdrop-filter: blur(18px);
  overflow: hidden;
  text-align: left;
  transition:
    transform 220ms ease,
    box-shadow 220ms ease;
}

.console-preview::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(90deg, rgba(20, 118, 92, 0.075), transparent 24%, rgba(255, 248, 238, 0.34) 58%, rgba(40, 108, 137, 0.055)),
    repeating-linear-gradient(0deg, rgba(17, 21, 19, 0.014) 0 1px, transparent 1px 34px);
  pointer-events: none;
}

.console-preview > * {
  position: relative;
}

.console-preview:hover {
  transform: translateY(-3px);
  box-shadow: 0 38px 100px rgba(25, 35, 31, 0.16), 0 0 0 8px rgba(255, 255, 255, 0.28);
}

.console-top {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.console-top strong {
  margin-left: 8px;
  color: var(--ink);
}

.console-top em {
  margin-left: auto;
  color: var(--muted);
  font-style: normal;
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--line);
}

.dot:nth-child(1) {
  background: var(--red);
}

.dot:nth-child(2) {
  background: var(--gold);
}

.dot:nth-child(3) {
  background: var(--green);
}

.console-body {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  min-height: 250px;
}

.console-rail {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 20px;
  border-right: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(20, 118, 92, 0.08), rgba(255, 255, 255, 0)),
    transparent;
}

.console-rail span {
  margin-bottom: 12px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
}

.console-rail strong {
  display: flex;
  min-height: 34px;
  align-items: center;
  padding: 0 10px;
  border: 1px solid transparent;
  border-radius: 7px;
  color: #34423b;
  font-size: 0.88rem;
}

.console-rail strong:first-of-type {
  border-color: rgba(20, 118, 92, 0.18);
  background: rgba(255, 255, 250, 0.74);
  box-shadow: var(--inset);
}

.console-main {
  display: grid;
  grid-template-rows: auto auto auto auto 1fr;
}

.console-status {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-bottom: 1px solid var(--line);
}

.console-status div {
  min-height: 78px;
  padding: 16px 18px;
  border-right: 1px solid var(--line);
}

.console-status div:last-child {
  border-right: 0;
}

.console-status span,
.console-metrics span,
.card-index,
.doc-item span,
.timeline span,
.roadmap-row strong {
  color: var(--blue);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 800;
}

.console-status strong {
  display: block;
  margin-top: 16px;
  font-size: 1.05rem;
}

.console-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  background: rgba(252, 253, 249, 0.74);
}

.console-metrics div {
  display: grid;
  gap: 6px;
  min-height: 58px;
  align-content: center;
  padding: 10px 12px;
  border: 1px solid rgba(17, 21, 19, 0.07);
  border-radius: 7px;
  background: rgba(255, 255, 250, 0.78);
}

.console-metrics strong {
  font-size: 0.94rem;
}

.console-metrics div:first-child strong {
  color: var(--green);
}

.console-map {
  display: grid;
  grid-template-columns: minmax(110px, auto) minmax(50px, 1fr) minmax(110px, auto) minmax(50px, 1fr) minmax(110px, auto);
  align-items: center;
  gap: 12px;
  padding: 18px;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.58), rgba(251, 253, 247, 0.66)),
    repeating-linear-gradient(90deg, rgba(40, 108, 137, 0.05) 0 1px, transparent 1px 36px);
}

.map-node {
  display: grid;
  min-height: 82px;
  align-content: center;
  gap: 9px;
  padding: 12px;
  border: 1px solid rgba(17, 21, 19, 0.08);
  border-radius: var(--radius);
  background: rgba(255, 255, 250, 0.78);
  box-shadow: var(--inset);
}

.map-node span {
  color: var(--blue);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
}

.map-node strong {
  font-size: 1.02rem;
}

.node-primary {
  border-color: rgba(20, 118, 92, 0.2);
}

.node-primary span {
  color: var(--green);
}

.node-accent {
  border-color: rgba(210, 75, 53, 0.18);
}

.node-accent span {
  color: var(--red);
}

.map-line {
  position: relative;
  height: 2px;
  background: linear-gradient(90deg, rgba(20, 118, 92, 0.52), rgba(40, 108, 137, 0.18));
}

.map-line::after {
  position: absolute;
  top: 50%;
  right: 0;
  width: 7px;
  height: 7px;
  content: "";
  border-radius: 50%;
  background: var(--blue);
  transform: translateY(-50%);
  box-shadow: 0 0 0 5px rgba(40, 108, 137, 0.1);
}

.console-flow {
  display: grid;
  grid-template-columns: auto 1fr auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}

.console-flow span {
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 800;
}

.console-flow i {
  height: 1px;
  background: linear-gradient(90deg, rgba(20, 118, 92, 0.6), rgba(40, 108, 137, 0.08));
}

.console-log {
  display: grid;
  align-content: center;
  gap: 0;
}

.console-log p {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 0;
  padding: 11px 18px;
  border-bottom: 1px solid rgba(223, 229, 221, 0.72);
  color: var(--muted);
}

.console-log p:last-child {
  border-bottom: 0;
}

.console-log span {
  min-width: 44px;
  color: var(--red);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
}

.console-foot {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  background: rgba(252, 253, 249, 0.82);
}

.console-foot span {
  min-height: 42px;
  padding: 13px 16px;
  border-right: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  white-space: nowrap;
}

.console-foot span:last-child {
  border-right: 0;
}

.console-log p,
.feature-card p,
.doc-item p,
.timeline p,
.body-copy,
.footer {
  color: var(--muted);
  line-height: 1.78;
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  width: min(100% - 36px, var(--max));
  margin: 30px auto 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 250, 0.82);
  box-shadow: var(--inset);
  overflow: hidden;
}

.signal-strip div {
  padding: 18px 20px;
  border-right: 1px solid var(--line);
}

.signal-strip div:last-child {
  border-right: 0;
}

.signal-strip span {
  display: block;
  margin-bottom: 18px;
  color: var(--red);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
}

.signal-strip strong {
  display: block;
  margin-bottom: 8px;
}

.signal-strip p {
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.72;
}

.section {
  width: min(100% - 36px, var(--max));
  margin: 0 auto;
  padding: 78px 0;
}

.section-heading {
  display: grid;
  max-width: 620px;
  gap: 10px;
  margin: 0 auto 28px;
  text-align: center;
}

.section-heading.compact {
  margin-bottom: 24px;
}

.section-heading h2,
.split-section h2 {
  margin-bottom: 0;
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3.35rem);
  line-height: 1.08;
  letter-spacing: -0.028em;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.12rem;
  line-height: 1.35;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.feature-card {
  position: relative;
  display: grid;
  min-height: 230px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at top right, rgba(74, 166, 161, 0.12), transparent 12rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(255, 254, 250, 0.76)),
    var(--panel);
  overflow: hidden;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.feature-card::before {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(135deg, rgba(20, 118, 92, 0.08), transparent 42%);
  opacity: 0;
  transition: opacity 180ms ease;
}

.feature-card::after,
.doc-item::after,
.timeline article::after,
.doc-hub-card::after {
  position: absolute;
  top: 0;
  right: 18px;
  left: 18px;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, var(--green), var(--blue), var(--red));
  opacity: 0.48;
}

.feature-card > * {
  position: relative;
}

.feature-card:hover {
  border-color: rgba(20, 118, 92, 0.28);
  box-shadow: var(--lift);
  transform: translateY(-3px);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card b {
  align-self: end;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
}

.card-index {
  display: inline-flex;
  margin-bottom: 38px;
  color: var(--red);
}

.docs-section {
  border-top: 1px solid var(--soft-line);
}

.docs-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.doc-item {
  position: relative;
  display: grid;
  min-height: 224px;
  align-content: start;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at top right, rgba(40, 108, 137, 0.1), transparent 12rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(255, 254, 250, 0.76)),
    var(--panel);
  overflow: hidden;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.doc-item:focus-visible,
.doc-hub-card:focus-visible,
.doc-next a:focus-visible,
.doc-back:focus-visible {
  outline: 3px solid rgba(40, 108, 137, 0.28);
  outline-offset: 3px;
}

.doc-item:hover {
  border-color: rgba(40, 108, 137, 0.25);
  box-shadow: var(--lift);
  transform: translateY(-3px);
}

.doc-item span {
  display: inline-flex;
  margin-bottom: 34px;
  color: var(--blue);
}

.doc-item b {
  align-self: end;
  margin-top: 20px;
  color: var(--red);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(280px, 1fr);
  gap: 48px;
  align-items: start;
  width: min(100% - 36px, var(--max));
  margin: 0 auto;
  padding: 72px 0;
  border-top: 1px solid var(--soft-line);
  border-bottom: 1px solid var(--soft-line);
}

.body-copy {
  max-width: 520px;
  font-size: 1.05rem;
}

.timeline {
  display: grid;
  gap: 12px;
}

.timeline article {
  position: relative;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 250, 0.84);
  overflow: hidden;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.timeline article:hover {
  box-shadow: var(--lift);
  transform: translateX(3px);
}

.timeline span {
  display: inline-flex;
  margin-bottom: 10px;
}

.roadmap-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}

.roadmap-row div {
  position: relative;
  display: grid;
  min-height: 118px;
  align-content: space-between;
  gap: 16px;
  padding: 20px;
  border-right: 1px solid var(--line);
}

.roadmap-row div::after {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 8px;
  height: 8px;
  content: "";
  border-radius: 50%;
  background: var(--green);
  opacity: 0.22;
}

.roadmap-row div:last-child {
  border-right: 0;
}

.roadmap-row span {
  font-weight: 800;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  width: min(100% - 36px, var(--max));
  margin: 0 auto;
  padding: 26px 0;
  border-top: 1px solid var(--soft-line);
  font-size: 0.9rem;
}

.doc-main {
  min-height: calc(100vh - 88px);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.64), rgba(250, 253, 247, 0)),
    linear-gradient(115deg, rgba(74, 166, 161, 0.09), transparent 34%, rgba(210, 75, 53, 0.045)),
    repeating-linear-gradient(90deg, rgba(17, 21, 19, 0.012) 0 1px, transparent 1px 92px);
}

.doc-hero {
  display: grid;
  justify-items: center;
  width: min(100% - 36px, var(--max));
  margin: 0 auto;
  padding: 74px 0 34px;
  text-align: center;
}

.doc-article-hero {
  max-width: 920px;
  padding-bottom: 26px;
}

.doc-hero h1 {
  max-width: 820px;
  margin-bottom: 18px;
  font-size: clamp(2.7rem, 5.8vw, 4.8rem);
}

.doc-lede {
  max-width: 720px;
  margin: 0 auto;
  color: #39443f;
  font-size: clamp(1.04rem, 1.35vw, 1.18rem);
  line-height: 1.86;
}

.doc-back {
  justify-self: start;
  margin-bottom: 28px;
  color: var(--blue);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.doc-back::before {
  content: "< ";
}

.doc-meta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}

.doc-meta-row span {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  padding: 0 10px;
  border: 1px solid var(--soft-line);
  border-radius: 999px;
  color: #4e5a53;
  background: rgba(255, 255, 255, 0.58);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 800;
}

.doc-hub-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  width: min(100% - 36px, var(--max));
  margin: 0 auto;
}

.doc-hub-card {
  position: relative;
  display: grid;
  min-height: 280px;
  align-content: start;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(255, 254, 250, 0.72)),
    var(--panel);
  box-shadow: var(--inset);
  overflow: hidden;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.doc-constellation {
  display: grid;
  grid-template-columns: minmax(120px, auto) minmax(40px, 1fr) minmax(120px, auto) minmax(40px, 1fr) minmax(120px, auto);
  align-items: center;
  gap: 14px;
  width: min(100% - 36px, 900px);
  margin: 0 auto 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(251, 253, 247, 0.72)),
    repeating-linear-gradient(90deg, rgba(40, 108, 137, 0.045) 0 1px, transparent 1px 42px);
  box-shadow: var(--inset);
}

.doc-constellation i {
  height: 1px;
  background: linear-gradient(90deg, rgba(20, 118, 92, 0.6), rgba(40, 108, 137, 0.12));
}

.constellation-node {
  display: grid;
  min-height: 76px;
  place-items: center;
  gap: 7px;
  border: 1px solid rgba(17, 21, 19, 0.08);
  border-radius: var(--radius);
  background: rgba(255, 255, 250, 0.78);
}

.constellation-node span {
  color: var(--blue);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 800;
}

.constellation-node strong {
  font-size: 0.92rem;
}

.constellation-node.primary span {
  color: var(--green);
}

.constellation-node.accent span {
  color: var(--red);
}

.doc-hub-card:hover {
  border-color: rgba(20, 118, 92, 0.28);
  box-shadow: var(--lift);
  transform: translateY(-3px);
}

.doc-hub-card span,
.prompt-list span {
  color: var(--blue);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.doc-hub-card h2 {
  margin: 34px 0 10px;
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.doc-hub-card p,
.doc-note p,
.doc-article p,
.doc-article li,
.prompt-list p,
.doc-table span {
  color: var(--muted);
  line-height: 1.82;
}

.doc-hub-card b {
  align-self: end;
  margin-top: 28px;
  color: var(--red);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
}

.doc-note {
  width: min(100% - 36px, var(--max));
  margin: 18px auto 0;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.64);
  box-shadow: var(--inset);
}

.doc-note strong {
  display: block;
  margin-bottom: 8px;
}

.doc-note p {
  margin: 0;
}

.article-layout {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 34px;
  width: min(100% - 36px, 1060px);
  margin: 0 auto;
  padding: 34px 0 12px;
  border-top: 1px solid var(--soft-line);
}

.article-toc {
  position: sticky;
  top: 92px;
  display: grid;
  align-self: start;
  gap: 8px;
  padding: 12px 0;
}

.article-toc span {
  margin-bottom: 8px;
  color: var(--red);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
}

.article-toc a {
  display: flex;
  min-height: 34px;
  align-items: center;
  padding: 0 10px;
  border-left: 2px solid rgba(17, 21, 19, 0.08);
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.article-toc a:hover {
  border-left-color: var(--blue);
  color: var(--ink);
}

.doc-article {
  width: auto;
  min-width: 0;
  margin: 0;
}

.doc-article h2 {
  margin: 36px 0 12px;
  font-family: var(--font-serif);
  font-size: clamp(1.65rem, 2.6vw, 2.25rem);
  line-height: 1.16;
  letter-spacing: -0.018em;
}

.doc-article h2:first-child {
  margin-top: 0;
}

.doc-article ol,
.doc-article ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 22px;
}

.doc-table {
  display: grid;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 250, 0.78);
  overflow: hidden;
}

.doc-table div {
  display: grid;
  grid-template-columns: minmax(150px, 0.35fr) minmax(0, 1fr);
  gap: 18px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}

.doc-table div:last-child {
  border-bottom: 0;
}

.prompt-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.prompt-list article {
  position: relative;
  min-height: 178px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.68);
  overflow: hidden;
}

.prompt-list article::after {
  position: absolute;
  top: 0;
  right: 16px;
  left: 16px;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, var(--blue), transparent);
  opacity: 0.55;
}

.prompt-list h3 {
  margin-top: 26px;
}

.prompt-list p {
  margin-bottom: 0;
}

.prompt-template {
  margin: 18px 0 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at top right, rgba(74, 166, 161, 0.1), transparent 14rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 254, 250, 0.78));
  box-shadow: var(--inset);
  overflow: hidden;
}

.template-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
}

.template-head span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(20, 118, 92, 0.2);
  border-radius: 50%;
  color: var(--green);
  background: rgba(255, 255, 250, 0.72);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 800;
}

.template-head h3 {
  margin: 0 0 6px;
  font-size: 1.16rem;
}

.template-head p {
  margin: 0;
  color: var(--muted);
  line-height: 1.72;
}

.template-body {
  display: grid;
  gap: 10px;
  padding: 18px 20px 20px;
}

.template-body strong {
  color: var(--ink);
}

.template-body p {
  margin: 0 0 8px;
  color: var(--muted);
  line-height: 1.78;
}

.template-body pre {
  margin: 0 0 8px;
  padding: 18px;
  border: 1px solid rgba(17, 21, 19, 0.08);
  border-radius: var(--radius);
  background: rgba(17, 21, 19, 0.92);
  color: #f7fbf3;
  overflow-x: auto;
}

.template-body code {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.72;
  white-space: pre;
}

.doc-next {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  width: min(100% - 36px, 860px);
  margin: 26px auto 72px;
}

.doc-next a {
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 250, 0.78);
  color: var(--ink);
  font-weight: 800;
  text-align: center;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.doc-next a:hover {
  border-color: rgba(40, 108, 137, 0.25);
  box-shadow: var(--lift);
  transform: translateY(-2px);
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 520ms ease,
    transform 520ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .feature-grid,
  .docs-grid,
  .doc-hub-grid,
  .roadmap-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .topbar {
    grid-template-columns: auto auto;
  }

  .nav {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: flex-start;
  }

  .site-state {
    justify-self: end;
  }

  .split-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .topbar {
    position: relative;
    gap: 14px;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .nav {
    width: 100%;
    justify-content: flex-start;
    gap: 12px;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero-shell {
    padding: 46px 0 42px;
  }

  h1 {
    max-width: 420px;
    font-size: clamp(2.55rem, 14vw, 3.45rem);
  }

  .hero-lede {
    font-size: 0.98rem;
  }

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

  .button {
    max-width: 360px;
  }

  .console-body,
  .signal-strip,
  .docs-grid,
  .doc-hub-grid,
  .doc-constellation,
  .feature-grid,
  .roadmap-row {
    grid-template-columns: 1fr;
  }

  .console-map {
    grid-template-columns: 1fr;
  }

  .map-line,
  .doc-constellation i {
    width: 52px;
    justify-self: center;
  }

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

  .console-rail,
  .console-foot span,
  .signal-strip div,
  .roadmap-row div {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .console-foot span:last-child,
  .signal-strip div:last-child,
  .roadmap-row div:last-child {
    border-bottom: 0;
  }

  .console-flow {
    gap: 8px;
  }

  .console-flow i {
    min-width: 18px;
  }

  .signal-strip {
    margin-top: 18px;
  }

  .console-foot span {
    white-space: normal;
  }

  .console-rail {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 6px;
    padding: 12px;
  }

  .console-rail span {
    grid-column: 1 / -1;
    margin-bottom: 4px;
  }

  .console-rail strong {
    justify-content: center;
    padding: 0 6px;
    font-size: 0.78rem;
  }

  .console-status div,
  .console-metrics div {
    min-height: 68px;
    padding: 12px 10px;
  }

  .console-status strong,
  .console-metrics strong {
    font-size: 0.84rem;
  }

  .section,
  .split-section {
    padding: 52px 0;
  }

  .doc-hero {
    padding-top: 48px;
  }

  .doc-table div,
  .article-layout,
  .prompt-list,
  .doc-next {
    grid-template-columns: 1fr;
  }

  .article-toc {
    position: static;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 0;
  }

  .article-toc span {
    width: 100%;
  }

  .article-toc a {
    min-height: 32px;
    border: 1px solid var(--soft-line);
    border-radius: 999px;
    background: rgba(255, 255, 250, 0.74);
    font-size: 0.82rem;
  }

  .footer {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .topbar {
    grid-template-columns: 1fr;
  }

  .site-state {
    justify-self: start;
  }

  .console-status,
  .console-metrics {
    grid-template-columns: 1fr;
  }

  .console-status div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .console-status div:last-child {
    border-bottom: 0;
  }

  .console-flow {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .console-flow i {
    width: 42px;
  }
}

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

  .reveal {
    opacity: 1;
    transform: none;
  }
}