:root {
  color-scheme: dark;
  --bg: #06101c;
  --bg-deep: #030913;
  --surface: rgba(12, 28, 44, 0.78);
  --surface-strong: #0c1b2c;
  --surface-soft: rgba(16, 39, 60, 0.55);
  --line: rgba(157, 220, 235, 0.14);
  --line-strong: rgba(157, 220, 235, 0.27);
  --text: #edfaff;
  --text-soft: #a9bec8;
  --text-muted: #68808d;
  --cyan: #5de4e7;
  --cyan-bright: #9ffaff;
  --cyan-dim: rgba(93, 228, 231, 0.12);
  --blue: #5a8cff;
  --green: #48d49b;
  --amber: #efb65d;
  --slate: #80929e;
  --danger: #ff7b7b;
  --max-width: 1180px;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.34);
  --font-sans: "Segoe UI Variable", "Segoe UI", Inter, system-ui, sans-serif;
  --font-mono: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  min-width: 300px;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 78% 5%, rgba(42, 127, 164, 0.17), transparent 27rem),
    radial-gradient(circle at 6% 24%, rgba(29, 86, 125, 0.12), transparent 30rem),
    linear-gradient(180deg, #071321 0, var(--bg) 34rem, var(--bg-deep) 100%);
  color: var(--text);
  font: 15px/1.65 var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(rgba(136, 212, 229, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(136, 212, 229, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
  content: "";
  pointer-events: none;
}

a {
  color: inherit;
}

button,
input,
select {
  font: inherit;
}

button,
select {
  cursor: pointer;
}

code,
pre {
  font-family: var(--font-mono);
}

code {
  color: var(--cyan-bright);
}

.copy-fallback {
  position: fixed;
  top: -1000px;
  left: -1000px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--text);
  color: var(--bg);
  font-weight: 700;
  transform: translateY(-150%);
  transition: transform 160ms ease;
}

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

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  display: grid;
  grid-template-columns: minmax(230px, 1fr) auto minmax(230px, 1fr);
  align-items: center;
  min-height: 72px;
  padding: 10px max(24px, calc((100vw - var(--max-width)) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(5, 15, 26, 0.84);
  backdrop-filter: blur(22px);
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
}

.brand img,
.site-footer img {
  border: 1px solid rgba(126, 240, 243, 0.24);
  border-radius: 9px;
  box-shadow: 0 0 20px rgba(93, 228, 231, 0.12);
}

.brand span,
.site-footer div > span {
  display: flex;
  flex-direction: column;
}

.brand strong {
  font-size: 13px;
  letter-spacing: 0.02em;
}

.brand small {
  color: var(--text-muted);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(8, 24, 39, 0.72);
}

.site-nav a {
  padding: 7px 12px;
  border-radius: 999px;
  color: var(--text-soft);
  font-size: 12px;
  font-weight: 650;
  text-decoration: none;
  transition: color 160ms ease, background 160ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.is-active {
  background: var(--cyan-dim);
  color: var(--cyan-bright);
  outline: none;
}

.repo-link {
  display: inline-flex;
  align-items: center;
  justify-self: end;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--text-soft);
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
  transition: border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.repo-link:hover,
.repo-link:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan-bright);
  outline: none;
  transform: translateY(-1px);
}

.section-shell {
  width: min(calc(100% - 48px), var(--max-width));
  margin-inline: auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(440px, 1.05fr);
  align-items: center;
  gap: clamp(42px, 7vw, 92px);
  min-height: 720px;
  padding-block: 92px 78px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 18px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 5px rgba(72, 212, 155, 0.1), 0 0 18px rgba(72, 212, 155, 0.9);
  animation: breathe 2.2s ease-in-out infinite;
}

@keyframes breathe {
  50% { box-shadow: 0 0 0 8px rgba(72, 212, 155, 0), 0 0 24px rgba(72, 212, 155, 0.7); }
}

.hero h1 {
  max-width: 680px;
  margin: 0;
  font-size: clamp(48px, 6.2vw, 78px);
  font-weight: 720;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.hero h1 span {
  background: linear-gradient(100deg, var(--cyan-bright), #6cbfff 70%);
  background-clip: text;
  color: transparent;
}

.hero-lede {
  max-width: 610px;
  margin: 28px 0 0;
  color: var(--text-soft);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 11px;
  font-size: 13px;
  font-weight: 750;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.button:hover,
.button:focus-visible {
  outline: none;
  transform: translateY(-2px);
}

.button-primary {
  border-color: rgba(134, 250, 255, 0.52);
  background: linear-gradient(135deg, #8ff7f5, #5dbbda);
  box-shadow: 0 12px 34px rgba(70, 193, 207, 0.15);
  color: #04131c;
}

.button-primary:hover,
.button-primary:focus-visible {
  box-shadow: 0 15px 40px rgba(70, 193, 207, 0.28);
}

.button-quiet {
  border-color: var(--line-strong);
  background: rgba(11, 28, 45, 0.65);
  color: var(--text);
}

.button-quiet:hover,
.button-quiet:focus-visible {
  border-color: rgba(93, 228, 231, 0.5);
}

.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 26px 0 0;
  padding: 0;
  color: var(--text-muted);
  font-size: 11px;
  list-style: none;
}

.trust-strip li::before {
  margin-right: 7px;
  color: var(--green);
  content: "✓";
}

.signal-board {
  position: relative;
  padding: 0 24px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(13, 34, 52, 0.94), rgba(6, 18, 31, 0.95)),
    var(--surface-strong);
  box-shadow: var(--shadow), inset 0 1px rgba(255, 255, 255, 0.04);
  transform: perspective(1000px) rotateY(-2deg) rotateX(1deg);
}

.signal-board::before {
  position: absolute;
  z-index: -1;
  inset: 8% 0 5% 12%;
  border-radius: 50%;
  background: rgba(38, 196, 215, 0.18);
  filter: blur(72px);
  content: "";
}

.board-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  border-bottom: 1px solid var(--line);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
}

.board-topline > :first-child::before {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 12px var(--green);
  content: "";
}

.board-sequence {
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 5px;
}

.agent-lane {
  display: grid;
  grid-template-columns: 155px minmax(80px, 1fr) 74px;
  align-items: center;
  gap: 18px;
  min-height: 96px;
  border-bottom: 1px solid var(--line);
}

.lane-identity {
  display: flex;
  align-items: center;
  gap: 11px;
}

.lane-identity > span:last-child {
  display: flex;
  min-width: 0;
  flex-direction: column;
}

.lane-identity strong {
  overflow: hidden;
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lane-identity small {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.agent-mark {
  display: grid;
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: rgba(93, 228, 231, 0.08);
  color: var(--cyan-bright);
  font: 700 12px/1 var(--font-mono);
}

.lane-track {
  position: relative;
  height: 1px;
  background: var(--line-strong);
}

.track-fill {
  position: absolute;
  inset: -1px auto auto 0;
  width: 72%;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  box-shadow: 0 0 14px rgba(93, 228, 231, 0.48);
}

.lane-claude .track-fill {
  width: 48%;
}

.lane-shell .track-fill {
  width: 3%;
  background: var(--slate);
  box-shadow: none;
}

.track-node {
  position: absolute;
  top: -4px;
  width: 9px;
  height: 9px;
  border: 2px solid var(--surface-strong);
  border-radius: 50%;
  background: var(--line-strong);
}

.node-start { left: 0; }
.node-live { left: 50%; }
.node-end { right: 0; }
.lane-codex .node-start,
.lane-codex .node-live { background: var(--cyan); }
.lane-claude .node-start { background: var(--cyan); }

.lane-state {
  justify-self: end;
  padding: 5px 7px;
  border-radius: 5px;
  font: 700 8px/1 var(--font-mono);
  letter-spacing: 0.1em;
}

.state-match {
  background: rgba(72, 212, 155, 0.12);
  color: var(--green);
}

.state-working {
  background: rgba(93, 228, 231, 0.1);
  color: var(--cyan);
}

.state-queued {
  background: rgba(128, 146, 158, 0.1);
  color: var(--slate);
}

.board-footer {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  min-height: 78px;
}

.checkpoint-icon {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid rgba(239, 182, 93, 0.24);
  border-radius: 50%;
  background: rgba(239, 182, 93, 0.08);
  color: var(--amber);
}

.board-footer > span:nth-child(2) {
  display: flex;
  flex-direction: column;
}

.board-footer strong {
  font-size: 11px;
}

.board-footer small {
  color: var(--text-muted);
  font: 9px var(--font-mono);
}

.board-ready {
  color: var(--amber);
  font: 700 10px var(--font-mono);
}

.product-proof {
  padding-block: 28px 84px;
}

.proof-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: end;
  margin-bottom: 28px;
}

.proof-heading h2 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(30px, 3.6vw, 46px);
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.proof-heading > p {
  margin: 0;
  color: var(--text-soft);
  font-size: 14px;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.proof-frame {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(7, 17, 31, 0.78);
  box-shadow: 0 24px 72px rgba(0, 0, 0, 0.24);
}

.proof-frame-wide {
  grid-column: 1 / -1;
}

.proof-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-bottom: 1px solid var(--line);
  background: #080b0e;
}

.proof-frame figcaption {
  padding: 17px 20px 19px;
  color: var(--text-soft);
  font-size: 13px;
}

.proof-frame figcaption strong {
  color: var(--text);
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.principles article {
  position: relative;
  padding: 34px 34px 38px;
  border-right: 1px solid var(--line);
}

.principles article:last-child {
  border-right: 0;
}

.principle-number {
  position: absolute;
  top: 22px;
  right: 24px;
  color: rgba(93, 228, 231, 0.25);
  font: 700 11px var(--font-mono);
}

.principles h2 {
  margin: 0 0 10px;
  font-size: 18px;
}

.principles p {
  margin: 0;
  color: var(--text-soft);
  font-size: 13px;
}

.guide-section {
  padding-block: 118px;
}

.section-heading {
  max-width: 750px;
  margin-bottom: 48px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(34px, 4vw, 50px);
  font-weight: 680;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.section-heading > p:last-child,
.split-heading > p {
  color: var(--text-soft);
}

.split-heading {
  display: grid;
  max-width: none;
  grid-template-columns: minmax(0, 1.3fr) minmax(260px, 0.7fr);
  align-items: end;
  gap: 50px;
}

.split-heading > p {
  max-width: 440px;
  margin: 0;
  justify-self: end;
}

.step-rail {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  list-style: none;
}

.step-rail li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  min-height: 112px;
  padding: 20px 6px;
  border-bottom: 1px solid var(--line);
}

.step-index {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--cyan);
  font: 700 11px var(--font-mono);
}

.step-rail h3 {
  margin: 0 0 4px;
  font-size: 17px;
}

.step-rail p {
  max-width: 760px;
  margin: 0;
  color: var(--text-soft);
  font-size: 13px;
}

.step-tag {
  min-width: 64px;
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-muted);
  font: 700 9px/1 var(--font-mono);
  letter-spacing: 0.09em;
  text-align: center;
  text-transform: uppercase;
}

.recovery-callout {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 40px;
  margin-top: 50px;
  padding: 32px 36px;
  overflow: hidden;
  border: 1px solid rgba(239, 182, 93, 0.25);
  border-radius: var(--radius-md);
  background:
    linear-gradient(110deg, rgba(239, 182, 93, 0.1), transparent 55%),
    rgba(12, 27, 42, 0.7);
}

.callout-label,
.operation-label {
  color: var(--amber);
  font: 700 9px var(--font-mono);
  letter-spacing: 0.12em;
}

.recovery-callout h3 {
  margin: 6px 0;
  font-size: 22px;
}

.recovery-callout p {
  max-width: 760px;
  margin: 0;
  color: var(--text-soft);
}

.callout-route {
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text-soft);
  font: 11px var(--font-mono);
  white-space: nowrap;
}

.callout-route b {
  margin: 0 5px;
  color: var(--amber);
}

.assurance-section,
.wait-section,
.developer-section {
  position: relative;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(8, 21, 34, 0.72);
}

.assurance-section::before,
.wait-section::before {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 75% 28%, rgba(55, 154, 171, 0.09), transparent 28rem);
  content: "";
  pointer-events: none;
}

.assurance-explorer {
  position: relative;
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 430px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: rgba(5, 15, 26, 0.65);
  box-shadow: var(--shadow);
}

.assurance-tabs {
  padding: 18px;
  border-right: 1px solid var(--line);
  background: rgba(4, 14, 24, 0.65);
}

.assurance-tab {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 14px;
  margin-bottom: 6px;
  padding: 17px 15px;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  color: var(--text-soft);
  text-align: left;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}

.assurance-tab:hover,
.assurance-tab:focus-visible {
  border-color: var(--line);
  color: var(--text);
  outline: none;
}

.assurance-tab.is-active {
  border-color: rgba(93, 228, 231, 0.2);
  background: rgba(93, 228, 231, 0.08);
  color: var(--text);
}

.assurance-tab > span:last-child {
  display: flex;
  flex-direction: column;
}

.assurance-tab strong {
  font-size: 13px;
}

.assurance-tab small {
  color: var(--text-muted);
  font-size: 10px;
}

.level-dot {
  width: 9px;
  height: 9px;
  flex: 0 0 9px;
  border-radius: 50%;
}

.level-l1 { background: var(--green); box-shadow: 0 0 14px rgba(72, 212, 155, 0.5); }
.level-l2 { background: var(--amber); }
.level-l0 { background: var(--slate); }

.assurance-panels {
  display: flex;
  min-width: 0;
}

.assurance-panel {
  display: grid;
  width: 100%;
  grid-template-columns: 84px minmax(0, 1fr) minmax(190px, 0.45fr);
  align-items: start;
  gap: 32px;
  padding: 50px 46px;
}

.assurance-panel[hidden] {
  display: none;
}

.panel-level {
  font: 700 50px/1 var(--font-mono);
  letter-spacing: -0.08em;
}

.level-copy-l1 { color: var(--green); }
.level-copy-l2 { color: var(--amber); }
.level-copy-l0 { color: var(--slate); }

.panel-overline {
  margin: 0 0 8px;
  color: var(--text-muted);
  font: 700 9px var(--font-mono);
  letter-spacing: 0.14em;
}

.assurance-panel h3 {
  max-width: 520px;
  margin: 0 0 13px;
  font-size: 22px;
  line-height: 1.35;
}

.assurance-panel h3 + p {
  max-width: 560px;
  margin: 0;
  color: var(--text-soft);
}

.boundary-list {
  display: grid;
  gap: 8px;
  margin: 23px 0 0;
  padding: 0;
  color: var(--text-soft);
  font-size: 12px;
  list-style: none;
}

.boundary-list span {
  display: inline-block;
  width: 22px;
  color: var(--cyan);
  font-family: var(--font-mono);
}

.truth-card {
  align-self: stretch;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.025);
}

.truth-card span {
  display: block;
  margin-bottom: 8px;
  color: var(--text-muted);
  font: 700 9px var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.truth-card strong {
  font-size: 16px;
}

.truth-card p {
  margin: 9px 0 0;
  color: var(--text-soft);
  font-size: 12px;
}

.composer {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.composer-controls {
  display: grid;
  align-content: start;
  gap: 19px;
  padding: 30px;
  border-right: 1px solid var(--line);
  background: rgba(5, 16, 27, 0.55);
}

.composer-controls label {
  display: grid;
  gap: 7px;
  color: var(--text-muted);
  font: 700 10px var(--font-mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.composer-controls select,
.composer-controls input {
  width: 100%;
  min-height: 43px;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: #071522;
  color: var(--text);
  font: 12px var(--font-sans);
  text-transform: none;
}

.composer-controls select:focus,
.composer-controls input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(93, 228, 231, 0.1);
  outline: none;
}

.number-field {
  position: relative;
}

.number-field span {
  position: absolute;
  top: 13px;
  right: 12px;
  color: var(--text-muted);
  font: 9px var(--font-mono);
}

.number-field input {
  padding-right: 36px;
}

.recipe-output {
  min-width: 0;
  padding: 30px;
}

.recipe-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.recipe-toolbar > div {
  display: flex;
  flex-direction: column;
}

.recipe-label {
  color: var(--text-muted);
  font: 700 9px var(--font-mono);
  letter-spacing: 0.12em;
}

.recipe-toolbar strong {
  font-size: 16px;
}

.copy-button {
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: rgba(93, 228, 231, 0.05);
  color: var(--text-soft);
  font-size: 11px;
  font-weight: 700;
}

.copy-button:hover,
.copy-button:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan-bright);
  outline: none;
}

.recipe-lanes {
  display: grid;
  gap: 14px;
  margin: 22px 0;
}

.recipe-stage {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  align-items: start;
  gap: 12px;
}

.recipe-stage-label {
  padding-top: 12px;
  color: var(--text-muted);
  font: 700 9px var(--font-mono);
  letter-spacing: 0.08em;
}

.recipe-stage-blocks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(115px, 1fr));
  gap: 8px;
}

.recipe-block {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 3px;
  padding: 10px 11px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(7, 20, 33, 0.76);
  color: var(--text-soft);
  font-family: var(--font-mono);
}

.recipe-block strong {
  overflow: hidden;
  font-size: 9px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.recipe-block small {
  overflow: hidden;
  color: var(--text-muted);
  font-size: 8px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.recipe-stage-join {
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.recipe-join-block {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 14px;
  border: 1px solid rgba(239, 182, 93, 0.24);
  border-radius: 9px;
  background: rgba(239, 182, 93, 0.06);
  color: var(--amber);
}

.recipe-join-identity {
  display: grid;
  min-width: 0;
  grid-template-columns: auto auto;
  align-items: center;
  gap: 2px 9px;
}

.recipe-join-mark {
  grid-row: 1 / 3;
  color: var(--amber);
  font: 20px var(--font-mono);
}

.recipe-join-identity strong {
  color: var(--text);
  font: 700 10px var(--font-mono);
}

.recipe-join-identity small {
  overflow: hidden;
  color: var(--text-muted);
  font: 8px var(--font-mono);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.recipe-ready {
  flex: 0 0 auto;
  padding: 5px 8px;
  border: 1px solid rgba(239, 182, 93, 0.25);
  border-radius: 999px;
  font: 700 8px var(--font-mono);
}

.recipe-summary {
  min-height: 66px;
  margin: 0;
  padding: 14px 16px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: rgba(2, 9, 16, 0.72);
  color: #b8d2dc;
  font-size: 10px;
  line-height: 1.55;
  white-space: pre-wrap;
}

.recipe-summary:focus {
  border-color: var(--cyan);
  outline: none;
}

.recipe-note {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin: 16px 0 0;
  color: var(--text-muted);
  font-size: 11px;
}

.recipe-note span {
  color: var(--amber);
}

.wait-lab {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  gap: 22px;
}

.wait-console {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: #030b13;
  box-shadow: var(--shadow);
}

.console-header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 46px;
  padding: 0 17px;
  border-bottom: 1px solid var(--line);
  background: #0a1825;
}

.console-header > span:first-child {
  display: flex;
  gap: 5px;
}

.console-header i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-muted);
}

.console-header i:nth-child(1) { background: var(--danger); }
.console-header i:nth-child(2) { background: var(--amber); }
.console-header i:nth-child(3) { background: var(--green); }

.console-header strong {
  color: var(--text-soft);
  font: 10px var(--font-mono);
}

.console-header > span:last-child {
  justify-self: end;
  color: var(--text-muted);
  font: 9px var(--font-mono);
}

.console-body {
  min-height: 265px;
  padding: 24px;
  color: #bfd1d8;
  font: 11px/1.8 var(--font-mono);
}

.console-body p {
  margin: 0 0 8px;
}

.console-body p span {
  display: inline-block;
  width: 31px;
  color: #46606d;
}

.console-body .log-dim { color: var(--text-muted); }
.console-body .log-output { color: var(--text); }
.console-body .log-match { color: var(--green); }
.console-body .log-marker { color: var(--cyan-bright); }

.signal-progress {
  height: 2px;
  overflow: hidden;
  background: rgba(93, 228, 231, 0.08);
}

.signal-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  box-shadow: 0 0 14px var(--cyan);
}

.wait-console.is-running .signal-progress span {
  animation: signal-run 1.8s linear forwards;
}

@keyframes signal-run {
  to { width: 100%; }
}

.console-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 72px;
  padding: 13px 18px;
  border-top: 1px solid var(--line);
  background: #07131f;
}

.console-actions .button {
  min-height: 39px;
}

.simulation-result {
  color: var(--text-muted);
  font-size: 11px;
}

.simulation-result.is-match {
  color: var(--green);
}

.wait-rules {
  display: grid;
  gap: 10px;
}

.wait-rules article {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: rgba(7, 20, 33, 0.66);
}

.rule-number {
  display: grid;
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--cyan);
  font: 700 9px var(--font-mono);
}

.wait-rules h3 {
  margin: 0 0 3px;
  font-size: 14px;
}

.wait-rules p {
  margin: 0;
  color: var(--text-soft);
  font-size: 11px;
}

.rule-advice {
  padding: 17px 18px;
  border: 1px solid rgba(239, 182, 93, 0.2);
  border-radius: 13px;
  background: rgba(239, 182, 93, 0.07);
  color: var(--text-soft);
  font-size: 11px;
}

.rule-advice > span {
  display: block;
  margin-bottom: 4px;
  color: var(--amber);
  font: 700 9px var(--font-mono);
  letter-spacing: 0.11em;
}

.integrity-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.integrity-grid article {
  padding: 25px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background:
    linear-gradient(145deg, rgba(93, 228, 231, 0.045), transparent 60%),
    rgba(7, 20, 33, 0.66);
}

.integrity-mark {
  color: var(--cyan);
  font: 700 9px var(--font-mono);
  letter-spacing: 0.1em;
}

.integrity-grid h3 {
  margin: 16px 0 8px;
  font-size: 17px;
}

.integrity-grid p {
  margin: 0;
  color: var(--text-soft);
  font-size: 12px;
}

.integrity-note {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 18px;
  padding: 18px 22px;
  border: 1px solid rgba(239, 182, 93, 0.2);
  border-radius: 13px;
  background: rgba(239, 182, 93, 0.055);
}

.integrity-note > span {
  color: var(--amber);
  font: 25px var(--font-mono);
}

.integrity-note p {
  margin: 0;
  color: var(--text-soft);
  font-size: 11px;
}

.boundary-map {
  display: grid;
  grid-template-columns: 1fr 100px 1fr 100px 1fr;
  align-items: stretch;
}

.boundary-map article {
  min-height: 230px;
  padding: 25px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(8, 22, 36, 0.72);
}

.boundary-map .boundary-core {
  border-color: rgba(93, 228, 231, 0.31);
  background:
    radial-gradient(circle at 50% 0, rgba(93, 228, 231, 0.11), transparent 65%),
    rgba(8, 25, 39, 0.9);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.25);
}

.boundary-tag {
  color: var(--cyan);
  font: 700 9px var(--font-mono);
  letter-spacing: 0.12em;
}

.boundary-map h3 {
  margin: 15px 0 17px;
  font-size: 18px;
}

.boundary-map ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  color: var(--text-soft);
  font-size: 12px;
  list-style: none;
}

.boundary-map li::before {
  margin-right: 8px;
  color: var(--text-muted);
  content: "·";
}

.boundary-bridge {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.boundary-bridge span {
  font: 8px var(--font-mono);
  letter-spacing: 0.07em;
  writing-mode: vertical-rl;
}

.boundary-bridge b {
  margin-left: 8px;
  color: var(--cyan);
  font: 20px var(--font-mono);
}

.never-crosses {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 22px;
  padding: 20px 24px;
  border: 1px solid rgba(255, 123, 123, 0.17);
  border-radius: 13px;
  background: rgba(255, 123, 123, 0.045);
}

.never-icon {
  color: var(--danger);
  font: 24px var(--font-mono);
}

.never-crosses strong {
  font-size: 13px;
}

.never-crosses p {
  margin: 2px 0 0;
  color: var(--text-muted);
  font-size: 11px;
}

.operations-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 52px;
}

.operations-grid article {
  padding: 24px;
  border-top: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(12, 28, 44, 0.38), transparent);
}

.operations-grid h3 {
  margin: 10px 0 8px;
  font-size: 17px;
}

.operations-grid p {
  margin: 0;
  color: var(--text-soft);
  font-size: 12px;
}

.developer-section {
  background:
    radial-gradient(circle at 15% 50%, rgba(57, 127, 175, 0.12), transparent 31rem),
    #071421;
}

.developer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 20px;
}

.command-card {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: #030b13;
}

.command-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
  background: #0a1825;
}

.command-card-head > span {
  color: var(--text-muted);
  font: 10px var(--font-mono);
}

.command-card pre {
  margin: 0;
  padding: 24px;
  color: #c8dce3;
  font-size: 12px;
  line-height: 1.8;
}

.check-stack {
  display: grid;
  gap: 9px;
}

.check-stack article,
.check-stack > a {
  display: flex;
  min-height: 58px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(9, 24, 38, 0.72);
}

.check-stack article span {
  color: var(--text-muted);
  font-size: 10px;
  text-align: right;
}

.check-stack > a {
  border-color: rgba(93, 228, 231, 0.2);
  color: var(--cyan);
  font-size: 11px;
  font-weight: 700;
  text-decoration: none;
}

.check-stack > a:hover,
.check-stack > a:focus-visible {
  border-color: var(--cyan);
  outline: none;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 20px;
  min-height: 110px;
  padding-inline: max(24px, calc((100vw - var(--max-width)) / 2));
  color: var(--text-muted);
  font-size: 10px;
}

.site-footer > div {
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-footer strong {
  color: var(--text-soft);
  font-size: 11px;
}

.site-footer small {
  font-size: 9px;
}

.site-footer > span {
  justify-self: end;
}

@media (max-width: 1040px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    order: 3;
    grid-column: 1 / -1;
    width: 100%;
    margin-top: 8px;
    overflow-x: auto;
  }

  .site-header {
    padding-block: 10px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 82px;
  }

  .hero-copy {
    max-width: 760px;
  }

  .signal-board {
    width: min(100%, 720px);
    transform: none;
  }

  .assurance-panel {
    grid-template-columns: 64px minmax(0, 1fr);
  }

  .truth-card {
    grid-column: 2;
  }

  .boundary-map {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .boundary-map article {
    min-height: auto;
  }

  .boundary-bridge {
    min-height: 40px;
  }

  .boundary-bridge span {
    writing-mode: horizontal-tb;
  }

  .boundary-bridge b {
    transform: rotate(90deg);
  }
}

@media (max-width: 780px) {
  html {
    scroll-padding-top: 132px;
  }

  .section-shell {
    width: min(calc(100% - 32px), var(--max-width));
  }

  .brand small {
    display: none;
  }

  .repo-link {
    padding-inline: 11px;
  }

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

  .hero {
    padding-block: 68px 60px;
  }

  .hero h1 {
    font-size: clamp(44px, 13vw, 68px);
  }

  .agent-lane {
    grid-template-columns: 1fr auto;
    gap: 10px;
    padding-block: 15px;
  }

  .lane-track {
    order: 3;
    grid-column: 1 / -1;
  }

  .proof-heading,
  .proof-grid,
  .principles,
  .integrity-grid,
  .operations-grid {
    grid-template-columns: 1fr;
  }

  .proof-frame-wide {
    grid-column: auto;
  }

  .principles article {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .principles article:last-child {
    border-bottom: 0;
  }

  .guide-section {
    padding-block: 82px;
  }

  .split-heading {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .split-heading > p {
    justify-self: start;
  }

  .recovery-callout {
    grid-template-columns: 1fr;
    gap: 22px;
    padding: 26px;
  }

  .callout-route {
    justify-self: start;
  }

  .assurance-explorer {
    grid-template-columns: 1fr;
  }

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

  .assurance-tab {
    align-items: flex-start;
    margin: 0;
    padding: 13px 10px;
  }

  .assurance-tab small {
    display: none;
  }

  .assurance-panel {
    padding: 34px 26px;
  }

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

  .composer-controls {
    grid-template-columns: 1fr 1fr;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .recipe-stage {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .recipe-stage-label {
    padding-top: 0;
  }

  .recipe-stage-join {
    padding-top: 14px;
  }

  .wait-lab,
  .developer-grid {
    grid-template-columns: 1fr;
  }

  .operations-grid {
    gap: 0;
  }

  .site-footer {
    grid-template-columns: 1fr auto;
  }

  .site-footer p {
    order: 3;
    grid-column: 1 / -1;
    margin-top: 0;
  }
}

@media (max-width: 520px) {
  .site-header {
    grid-template-columns: minmax(0, 1fr) auto;
    padding-inline: 14px;
  }

  .brand strong {
    font-size: 11px;
  }

  .repo-link {
    font-size: 0;
  }

  .repo-link span {
    font-size: 14px;
  }

  .site-nav a {
    padding-inline: 10px;
  }

  .hero {
    gap: 48px;
  }

  .hero h1 {
    font-size: clamp(42px, 14vw, 59px);
  }

  .signal-board {
    padding-inline: 16px;
  }

  .board-footer {
    grid-template-columns: auto 1fr;
  }

  .board-ready {
    grid-column: 2;
    justify-self: start;
  }

  .step-rail li {
    grid-template-columns: 34px 1fr;
    gap: 14px;
  }

  .step-tag {
    grid-column: 2;
    justify-self: start;
  }

  .assurance-tabs {
    padding: 10px;
  }

  .assurance-tab {
    justify-content: center;
  }

  .assurance-tab > span:last-child {
    display: none;
  }

  .assurance-panel {
    grid-template-columns: 1fr;
  }

  .panel-level {
    font-size: 38px;
  }

  .truth-card {
    grid-column: 1;
  }

  .composer-controls {
    grid-template-columns: 1fr;
    padding: 23px;
  }

  .recipe-output {
    padding: 23px;
  }

  .recipe-toolbar {
    align-items: flex-end;
  }

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

  .console-header strong {
    display: none;
  }

  .console-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .check-stack article {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .check-stack article span {
    text-align: left;
  }

  .site-footer {
    padding-block: 26px;
  }
}

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