/* T3 Trades specification and prototype UI
 * A T3-Code fork: a T3-managed Codex/Claude/OpenCode harness trades
 * ETH momentum perpetuals on Hyperliquid testnet through a deterministic
 * execution boundary.
 *
 * Semantic accents describe authority, never trading direction.
 * Direction is always written as Buy / Long or Sell / Short.
 */

:root {
  color-scheme: dark;
  --font-sans: "IBM Plex Sans", Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;

  /* Six semantic authority tokens — model/human/risk/exchange/identity/platform.
     Kept distinct; refined for a cleaner, more focused technical surface. */
  --model: #44c7ff;
  --human: #f6b042;
  --risk: #ff6b6b;
  --exchange: #28dca0;
  --identity: #b58cff;
  --platform: #8ea3bb;

  --bg: #080c12;
  --surface: #0f151f;
  --surface-2: #141c28;
  --surface-3: #1a2330;
  --text: #e9f0f9;
  --text-dim: #aebdd1;
  --text-faint: #7d8ea6;
  --line: rgb(255 255 255 / 9%);
  --line-strong: rgb(255 255 255 / 18%);
  --overlay: rgb(3 6 11 / 80%);
  --focus: #8bd8ff;
  --positive: #28dca0;
  --negative: #ff8b8b;
  --shadow: 0 24px 60px -34px rgb(0 0 0 / 88%);

  --radius-xs: 6px;
  --radius-sm: 9px;
  --radius: 14px;
  --radius-lg: 20px;
  --page: 1200px;
  --pad: clamp(1rem, 3vw, 2rem);
  --topbar-height: 4.25rem;
}

:root[data-theme="light"] {
  color-scheme: light;
  --model: #006c9f;
  --human: #835300;
  --risk: #b32a36;
  --exchange: #066a4a;
  --identity: #6947a8;
  --platform: #4d6077;
  --bg: #f4f6fa;
  --surface: #fff;
  --surface-2: #edf1f6;
  --surface-3: #e4eaf2;
  --text: #0e1626;
  --text-dim: #3c4c64;
  --text-faint: #53657d;
  --line: rgb(15 23 42 / 11%);
  --line-strong: rgb(15 23 42 / 22%);
  --overlay: rgb(23 32 46 / 50%);
  --focus: #006c9f;
  --positive: #056a4a;
  --negative: #b32a36;
  --shadow: 0 24px 54px -38px rgb(15 23 42 / 36%);
}

:root[data-theme="light"] .button-primary,
:root[data-theme="light"] .button--primary {
  color: #fff;
}

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

html {
  min-width: 320px;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--topbar-height) + 1rem);
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 8% 0, color-mix(in srgb, var(--model) 7%, transparent), transparent 32rem),
    radial-gradient(circle at 100% 100%, color-mix(in srgb, var(--exchange) 5%, transparent), transparent 30rem),
    var(--bg);
  font: 0.95rem/1.6 var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

[hidden] {
  display: none !important;
}

img,
svg {
  max-width: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
select,
input[type="checkbox"],
input[type="radio"] {
  cursor: pointer;
}

a {
  color: var(--model);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-thickness: 2px;
}

:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
  outline: 3px solid color-mix(in srgb, var(--focus) 72%, transparent);
  outline-offset: 3px;
}

::selection {
  color: #061018;
  background: var(--model);
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  color: var(--text);
  line-height: 1.16;
  letter-spacing: -0.012em;
}

h1 {
  max-width: 22ch;
  margin-bottom: 0.75rem;
  font-size: clamp(2rem, 6vw, 4.25rem);
}

h2 {
  margin-bottom: 0.65rem;
  font-size: clamp(1.35rem, 2.6vw, 2rem);
}

h3 {
  margin-bottom: 0.5rem;
  font-size: 1.03rem;
}

h4 {
  margin-bottom: 0.4rem;
  font-size: 0.92rem;
}

p,
li,
dd {
  color: var(--text-dim);
}

strong,
dt {
  color: var(--text);
}

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

code {
  padding: 0.12em 0.34em;
  border: 1px solid var(--line);
  border-radius: 0.32rem;
  color: var(--text);
  background: var(--surface-2);
  font-size: 0.88em;
}

pre {
  max-width: 100%;
  margin: 0;
  padding: 1.1rem;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  background: color-mix(in srgb, var(--bg) 84%, #000);
  font: 0.82rem/1.65 var(--font-mono);
  tab-size: 2;
}

pre code {
  padding: 0;
  border: 0;
  background: transparent;
  font-size: inherit;
}

kbd {
  padding: 0.15rem 0.4rem;
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 0.3rem;
  color: var(--text-dim);
  background: var(--surface-2);
  font-size: 0.72rem;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--focus);
  border-radius: var(--radius-sm);
  color: var(--text);
  background: var(--surface);
  box-shadow: var(--shadow);
  transform: translateY(-160%);
}

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

/* Compact, directly-openable page shell */
.topbar,
.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  display: flex;
  min-height: var(--topbar-height);
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem var(--pad);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 84%, transparent);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  text-decoration: none;
}

.brand-mark,
.mark {
  display: grid;
  width: 2.35rem;
  height: 2.35rem;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 0.7rem;
  color: #061018;
  background: linear-gradient(135deg, var(--model), var(--exchange));
  box-shadow: 0 10px 25px -14px var(--model);
  letter-spacing: -0.04em;
  font: 700 0.84rem/1 var(--font-mono);
}

.brand-copy,
.brand > span:last-child {
  display: grid;
  min-width: 0;
  line-height: 1.15;
}

.brand-copy strong,
.brand > span:last-child strong {
  font-size: 0.94rem;
}

.brand-copy span,
.brand > span:last-child small {
  overflow: hidden;
  color: var(--text-faint);
  font: 0.67rem/1.4 var(--font-mono);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.icon-button,
.theme-toggle,
.nav-toggle {
  display: inline-grid;
  min-width: 2.45rem;
  height: 2.45rem;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  background: var(--surface);
}

.icon-button:hover,
.theme-toggle:hover,
.nav-toggle:hover {
  border-color: var(--line-strong);
  color: var(--text);
}

.nav-toggle {
  display: none;
}

.site-nav {
  display: flex;
  width: min(100% - (2 * var(--pad)), var(--page));
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  margin: 0 auto;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--line);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-links a,
.site-nav > a {
  display: inline-flex;
  align-items: center;
  min-height: 2.35rem;
  padding: 0.5rem 0.7rem;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font: 0.75rem/1.2 var(--font-mono);
  text-decoration: none;
  white-space: nowrap;
}

.nav-links a:hover,
.site-nav > a:hover {
  color: var(--text);
  background: var(--surface-2);
}

.nav-links a[aria-current="page"],
.site-nav > a[aria-current="page"],
.nav-links a.is-active {
  color: var(--text);
  background: var(--surface-2);
  box-shadow: inset 0 -2px var(--model);
}

.page-shell,
.page,
main {
  width: min(100% - (2 * var(--pad)), var(--page));
  margin-inline: auto;
}

.page-main,
.page,
main {
  padding-block: clamp(2rem, 6vw, 5rem);
}

.hero,
.page-header {
  display: grid;
  gap: 1rem;
  margin-bottom: clamp(2rem, 6vw, 4.5rem);
}

.hero.compact {
  margin-bottom: 2rem;
}

.hero .lead,
.lead,
.page-lead {
  max-width: 68ch;
  margin: 0;
  color: var(--text-dim);
  font-size: clamp(1rem, 1.5vw, 1.18rem);
}

.eyebrow {
  margin: 0;
  color: var(--text-faint);
  font: 600 0.7rem/1.4 var(--font-mono);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.hero-meta,
.cluster,
.status-row,
.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
}

.prototype-badge {
  display: inline-flex;
  width: max-content;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid color-mix(in srgb, var(--human) 38%, var(--line));
  border-radius: 999px;
  color: var(--human);
  background: color-mix(in srgb, var(--human) 8%, var(--surface));
  font: 700 0.7rem/1 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.prototype-badge::before {
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: currentColor;
  content: "";
}

/* Content primitives */
.section,
.panel {
  padding: clamp(1rem, 2.5vw, 1.55rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  box-shadow: var(--shadow);
}

.section + .section,
.panel + .panel {
  margin-top: 1rem;
}

.section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.1rem;
}

.section-heading > :only-child {
  margin-bottom: 0;
}

.grid {
  display: grid;
  gap: 1rem;
}

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

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

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

.card,
.spec-card {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
}

.card > :last-child,
.spec-card > :last-child {
  margin-bottom: 0;
}

.card.interactive {
  transition: border-color 160ms ease, transform 160ms ease;
}

.card.interactive:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.callout {
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--model);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-dim);
  background: var(--surface-2);
}

.callout--risk {
  border-left-color: var(--risk);
}

.callout--human {
  border-left-color: var(--human);
}

.divider {
  height: 1px;
  margin-block: 1rem;
  border: 0;
  background: var(--line);
}

.badge,
.pill,
.status {
  display: inline-flex;
  width: max-content;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.58rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-dim);
  background: var(--surface);
  font: 600 0.68rem/1 var(--font-mono);
  white-space: nowrap;
}

.badge::before,
.status::before {
  width: 0.4rem;
  height: 0.4rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: currentColor;
  content: "";
}

.badge[data-status="live"],
.status--live,
.status--ready {
  color: var(--exchange);
}

.badge[data-status="warning"],
.status--warning,
.status--paused {
  color: var(--human);
}

.badge[data-status="error"],
.status--error,
.status--blocked {
  color: var(--risk);
}

.status--loading,
.status--neutral {
  color: var(--platform);
}

.authority,
[class*="authority--"] {
  --authority-color: var(--platform);
}

.authority--model,
[data-authority="model"] { --authority-color: var(--model); }
.authority--human,
[data-authority="human"] { --authority-color: var(--human); }
.authority--risk,
[data-authority="risk"] { --authority-color: var(--risk); }
.authority--exchange,
[data-authority="exchange"] { --authority-color: var(--exchange); }
.authority--identity,
[data-authority="identity"] { --authority-color: var(--identity); }
.authority--platform,
[data-authority="platform"] { --authority-color: var(--platform); }
.authority-model { --authority-color: var(--model); }
.authority-human { --authority-color: var(--human); }
.authority-risk { --authority-color: var(--risk); }
.authority-exchange { --authority-color: var(--exchange); }
.authority-identity { --authority-color: var(--identity); }
.authority-platform { --authority-color: var(--platform); }

.authority-card,
[data-authority] {
  position: relative;
  overflow: hidden;
}

.authority-card::before,
[data-authority]::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--authority-color);
  content: "";
}

.authority-label {
  color: var(--authority-color);
  font: 700 0.68rem/1.3 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.diagram-node.model { --authority-color: var(--model); }
.diagram-node.human { --authority-color: var(--human); }
.diagram-node.risk { --authority-color: var(--risk); }
.diagram-node.exchange { --authority-color: var(--exchange); }
.diagram-node.identity { --authority-color: var(--identity); }
.diagram-node.platform { --authority-color: var(--platform); }

.badge--model { color: var(--model); }
.badge--human { color: var(--human); }
.badge--risk { color: var(--risk); }
.badge--exchange { color: var(--exchange); }
.badge--identity { color: var(--identity); }
.badge--platform { color: var(--platform); }

.status-badge {
  display: inline-flex;
  width: max-content;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.58rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-dim);
  background: var(--surface);
  font: 600 0.68rem/1 var(--font-mono);
  white-space: nowrap;
}

.status-badge::before {
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: currentColor;
  content: "";
}

.status-badge--prototype {
  border-color: color-mix(in srgb, var(--human) 38%, var(--line));
  color: var(--human);
}

.status-badge--testnet,
.status--verified {
  color: var(--exchange);
}

.accent-model { color: var(--model); }
.accent-human { color: var(--human); }
.accent-risk { color: var(--risk); }
.accent-exchange { color: var(--exchange); }
.accent-identity { color: var(--identity); }
.accent-platform { color: var(--platform); }

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

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  font-size: 0.86rem;
}

th,
td {
  padding: 0.72rem 0.8rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--text);
  background: var(--surface-2);
  font: 600 0.73rem/1.4 var(--font-mono);
}

td {
  color: var(--text-dim);
}

tbody tr:last-child > * {
  border-bottom: 0;
}

.code-block {
  position: relative;
}

.code-block [data-copy-target],
.copy-button {
  position: absolute;
  z-index: 2;
  top: 0.65rem;
  right: 0.65rem;
}

.review-toggle {
  min-height: 2rem;
  width: max-content;
  margin-top: 0.9rem;
  padding: 0.3rem 0.7rem;
  color: var(--text-dim);
  font-size: 0.78rem;
}

.review-toggle.is-done {
  border-color: var(--positive);
  color: var(--positive);
}

.card-head .review-toggle {
  margin-top: 0.5rem;
}

.site-nav a.is-reviewed::after {
  content: " ✓";
  color: var(--positive);
}

.button,
button {
  min-height: 2.45rem;
  padding: 0.55rem 0.82rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  background: var(--surface-2);
  font-weight: 600;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  text-decoration: none;
}

.button:hover,
button:hover {
  border-color: color-mix(in srgb, var(--model) 42%, var(--line-strong));
  background: var(--surface-3);
}

.button--primary {
  border-color: color-mix(in srgb, var(--model) 58%, var(--line));
  color: #061018;
  background: var(--model);
}

.button--primary:hover,
.button-primary:hover {
  border-color: var(--model);
  background: color-mix(in srgb, var(--model) 86%, white);
}

.button--danger,
.button-danger {
  border-color: color-mix(in srgb, var(--risk) 50%, var(--line));
  color: var(--risk);
  background: color-mix(in srgb, var(--risk) 8%, var(--surface-2));
}

.button-primary {
  border-color: color-mix(in srgb, var(--model) 58%, var(--line));
  color: #061018;
  background: var(--model);
}

.button-warning {
  border-color: color-mix(in srgb, var(--human) 52%, var(--line));
  color: var(--human);
  background: color-mix(in srgb, var(--human) 8%, var(--surface-2));
}

.button-secondary {
  color: var(--text-dim);
}

.button-block {
  width: 100%;
}

.button--quiet {
  border-color: transparent;
  color: var(--text-dim);
  background: transparent;
}

button:disabled,
.button[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.5;
}

label {
  display: grid;
  gap: 0.35rem;
  color: var(--text-dim);
  font-size: 0.8rem;
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  min-height: 2.55rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  background: var(--surface);
}

textarea {
  min-height: 6rem;
  resize: vertical;
}

fieldset {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

legend {
  margin-bottom: 0.5rem;
  color: var(--text);
  font-weight: 600;
}

.segmented-control {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: 0.25rem;
  padding: 0.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.segmented-control button {
  border: 0;
  background: transparent;
  font: 600 0.76rem/1.2 var(--font-mono);
}

.segmented-control button[aria-pressed="true"],
.segmented-control button.is-active {
  background: var(--surface-3);
  box-shadow: 0 0 0 1px var(--line-strong);
}

.segmented-control label {
  position: relative;
  display: block;
}

.segmented-control label input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.segmented-control label span {
  display: grid;
  min-height: 2.25rem;
  place-items: center;
  border-radius: var(--radius-xs);
  color: var(--text-dim);
  font: 600 0.73rem/1.2 var(--font-mono);
}

.segmented-control label:has(input:checked) span {
  color: var(--text);
  background: var(--surface-3);
  box-shadow: inset 0 0 0 1px var(--line-strong);
}

/* Diagrams and implementation sequences */
.diagram {
  max-width: 100%;
  padding: 1rem;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px),
    var(--surface-2);
  background-size: 24px 24px;
}

.diagram-flow,
.flow {
  display: flex;
  min-width: max-content;
  align-items: stretch;
  gap: 0.65rem;
}

.diagram-node,
.flow-step {
  display: grid;
  width: min(12rem, 72vw);
  align-content: center;
  gap: 0.25rem;
  padding: 0.8rem;
  border: 1px solid var(--line-strong);
  border-top: 3px solid var(--authority-color, var(--platform));
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.diagram-node span,
.flow-step span {
  color: var(--text-dim);
  font-size: 0.75rem;
}

.diagram-arrow,
.flow-arrow {
  align-self: center;
  color: var(--text-faint);
  font-family: var(--font-mono);
}

.steps,
.timeline {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.steps > li,
.timeline > li {
  position: relative;
  min-height: 3.5rem;
  padding: 0 0 1rem 2.6rem;
  counter-increment: steps;
}

.steps > li::before,
.timeline > li::before {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  width: 1.75rem;
  height: 1.75rem;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--model);
  background: var(--surface-2);
  content: counter(steps, decimal-leading-zero);
  font: 600 0.62rem/1 var(--font-mono);
}

.steps > li:not(:last-child)::after,
.timeline > li:not(:last-child)::after {
  position: absolute;
  top: 1.75rem;
  bottom: 0;
  left: 0.85rem;
  width: 1px;
  background: var(--line-strong);
  content: "";
}

/* Prototype controls and trading surfaces */
.prototype-toolbar {
  position: sticky;
  z-index: 30;
  top: calc(var(--topbar-height) + 0.65rem);
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
  padding: 0.65rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.prototype-toolbar label {
  min-width: min(18rem, 100%);
}

.state-switcher {
  max-width: 18rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.prototype-screen {
  display: grid;
  gap: 1rem;
}

.panel-header,
.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.panel-header h2,
.panel-header h3,
.card-head h2,
.card-head h3 {
  margin-bottom: 0;
}

.panel-header .eyebrow,
.card-head .eyebrow {
  margin-bottom: 0.25rem;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.45rem;
}

.state-banner {
  margin-bottom: 0.75rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--platform);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-dim);
  background: var(--surface-2);
}

.state-banner--success { border-left-color: var(--exchange); }
.state-banner--danger { border-left-color: var(--risk); }
.state-banner--warning { border-left-color: var(--human); }
.state-banner--model { border-left-color: var(--model); }
.state-banner--identity { border-left-color: var(--identity); }
.state-banner--neutral { border-left-color: var(--platform); }

.stack {
  display: grid;
  gap: 0.75rem;
}

/* Grid items default to min-width auto, which lets wide <pre> content
   inflate the column past the viewport on narrow screens. */
.stack > * {
  min-width: 0;
}

.microcopy {
  margin: 0;
  color: var(--text-faint);
  font-size: 0.73rem;
}

.positive {
  color: var(--positive) !important;
}

.negative {
  color: var(--negative) !important;
}

.status-dot {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-dim);
  font: 600 0.68rem/1.2 var(--font-mono);
  white-space: nowrap;
}

.status-dot::before {
  width: 0.42rem;
  height: 0.42rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: currentColor;
  content: "";
}

.status-dot--success { color: var(--exchange); }
.status-dot--model { color: var(--model); }

.prototype-grid {
  display: grid;
  gap: 0.75rem;
}

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

.prototype-grid--onboarding > :last-child {
  grid-column: 1 / -1;
}

.data-list,
.ticket-summary {
  display: grid;
  gap: 0;
  margin: 0;
}

.data-list > div,
.ticket-summary > div {
  display: grid;
  grid-template-columns: minmax(8rem, 0.8fr) minmax(0, 1.2fr);
  gap: 0.75rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
}

.data-list > div:last-child,
.ticket-summary > div:last-child {
  border-bottom: 0;
}

.data-list dt,
.data-list dd,
.ticket-summary dt,
.ticket-summary dd {
  margin: 0;
}

.data-list dt,
.ticket-summary dt {
  color: var(--text-faint);
  font: 0.7rem/1.4 var(--font-mono);
}

.data-list dd,
.ticket-summary dd {
  overflow-wrap: anywhere;
  color: var(--text);
  text-align: right;
}

.checklist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  padding: 0.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.checklist .is-complete span {
  color: var(--exchange);
  font-family: var(--font-mono);
}

[data-state-visible] {
  display: none;
}

/* JS reveals matching items, while .is-visible allows a useful no-JS default. */
[data-state-visible].is-visible,
[data-state-visible][data-state-default] {
  display: block;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
}

.metric {
  min-width: 0;
  padding: 0.8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.metric > span:first-child {
  display: block;
  margin-bottom: 0.3rem;
  overflow: hidden;
  color: var(--text-faint);
  font: 600 0.65rem/1.25 var(--font-mono);
  letter-spacing: 0.04em;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.metric > strong {
  font: 600 clamp(0.9rem, 1.7vw, 1.18rem)/1.2 var(--font-mono);
}

.metric-label {
  display: block;
  margin-bottom: 0.3rem;
  overflow: hidden;
  color: var(--text-faint);
  font: 600 0.65rem/1.25 var(--font-mono);
  letter-spacing: 0.06em;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.metric-value {
  display: block;
  color: var(--text);
  font: 600 clamp(0.95rem, 1.8vw, 1.25rem)/1.2 var(--font-mono);
}

.metric-note {
  display: block;
  margin-top: 0.2rem;
  color: var(--text-faint);
  font-size: 0.7rem;
}

.trading-layout {
  display: grid;
  grid-template-columns: minmax(10rem, 0.72fr) minmax(24rem, 2.3fr) minmax(15rem, 1fr);
  gap: 0.75rem;
}

.market-rail {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
}

.market-chip {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.7rem;
  align-items: center;
  width: 100%;
  text-align: left;
}

.market-chip > span {
  display: grid;
}

.market-chip > span:last-child {
  text-align: right;
}

.market-chip small {
  color: var(--text-faint);
  font: 0.65rem/1.4 var(--font-mono);
}

.market-chip.is-active {
  border-color: color-mix(in srgb, var(--exchange) 48%, var(--line));
  background: color-mix(in srgb, var(--exchange) 7%, var(--surface-2));
}

.quote-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1px;
  margin-bottom: 0.75rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.quote-strip > div {
  min-width: 0;
  padding: 0.65rem;
  background: var(--surface);
}

.quote-strip span,
.quote-strip strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.quote-strip span {
  color: var(--text-faint);
  font: 0.62rem/1.3 var(--font-mono);
}

.quote-strip strong {
  margin-top: 0.2rem;
  font: 600 0.78rem/1.3 var(--font-mono);
}

.cockpit-grid {
  display: grid;
  grid-template-columns: minmax(24rem, 2.2fr) minmax(15rem, 0.85fr);
  gap: 0.75rem;
  align-items: start;
}

.portfolio-panel {
  grid-column: 1 / -1;
}

.mock-chart {
  display: block;
  width: 100%;
  min-height: 14rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.chart-grid path {
  fill: none;
  stroke: var(--line);
  stroke-width: 1;
}

.chart-area {
  fill: color-mix(in srgb, var(--exchange) 12%, transparent);
}

.chart-line {
  fill: none;
  stroke: var(--exchange);
  stroke-width: 2.5;
  vector-effect: non-scaling-stroke;
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.book-grid h3 {
  font-size: 0.8rem;
}

.book-grid table {
  font-family: var(--font-mono);
}

.book-grid th,
.book-grid td {
  padding: 0.35rem 0.45rem;
  font-size: 0.68rem;
  text-align: right;
}

.book-grid th:first-child,
.book-grid td:first-child {
  text-align: left;
}

.book-grid tr.buy td:first-child,
.tape .buy {
  color: var(--exchange);
}

.book-grid tr.sell td:first-child,
.tape .sell {
  color: var(--risk);
}

.book-grid .spread td {
  color: var(--text-faint);
  text-align: center;
}

.tape {
  margin: 0;
  padding: 0;
  list-style: none;
}

.tape li {
  display: grid;
  grid-template-columns: 1fr 1fr 0.7fr;
  gap: 0.4rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--text-dim);
  font: 0.68rem/1.4 var(--font-mono);
}

.field {
  display: grid;
  gap: 0.35rem;
  color: var(--text-dim);
  font-size: 0.78rem;
}

.button-group {
  display: flex;
  gap: 0.35rem;
}

.button-group.wrap {
  flex-wrap: wrap;
}

.button-group button {
  flex: 1;
}

.button-group button.is-active {
  border-color: color-mix(in srgb, var(--model) 46%, var(--line));
  color: var(--model);
  background: color-mix(in srgb, var(--model) 7%, var(--surface-2));
}

.check-control {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.check-control input {
  width: 1rem;
  min-height: 1rem;
}

.position-card {
  margin-top: 0.75rem;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.position-card > div {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
}

.position-card dl {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin-bottom: 0;
}

.position-card dt {
  color: var(--text-faint);
  font: 0.65rem/1.4 var(--font-mono);
}

.position-card dd {
  margin: 0;
  color: var(--text);
  font: 0.72rem/1.4 var(--font-mono);
}

.direction-label {
  color: var(--text);
  font: 700 0.7rem/1.3 var(--font-mono);
}

.direction-label--long {
  color: var(--exchange);
}

.direction-label--short {
  color: var(--risk);
}

.trading-layout > *,
.arena-layout > * {
  min-width: 0;
}

.market-list,
.orderbook,
.activity-list {
  display: grid;
  gap: 0.2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.market-row,
.book-row,
.activity-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.5rem 0.58rem;
  border-radius: var(--radius-xs);
  color: var(--text-dim);
  font: 0.73rem/1.35 var(--font-mono);
}

.market-row:hover,
.market-row[aria-current="true"] {
  color: var(--text);
  background: var(--surface-3);
}

.book-row {
  position: relative;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.book-row::before {
  position: absolute;
  z-index: 0;
  inset: 2px 0 2px auto;
  width: var(--depth, 40%);
  border-radius: 3px;
  background: color-mix(in srgb, var(--platform) 8%, transparent);
  content: "";
}

.book-row > * {
  position: relative;
  z-index: 1;
}

.chart-placeholder {
  position: relative;
  display: grid;
  min-height: 19rem;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-faint);
  background:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px),
    linear-gradient(160deg, transparent 30%, color-mix(in srgb, var(--model) 16%, transparent) 48%, transparent 49%),
    var(--surface-2);
  background-size: 100% 25%, 12.5% 100%, 100% 100%, auto;
  font: 0.72rem/1.4 var(--font-mono);
}

.order-ticket {
  display: grid;
  align-content: start;
  gap: 0.75rem;
}

.direction-choice {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
}

.direction-choice .buy,
.direction-buy,
[data-direction="buy"] {
  border-color: color-mix(in srgb, var(--exchange) 38%, var(--line));
}

.direction-choice .sell,
.direction-sell,
[data-direction="sell"] {
  border-color: color-mix(in srgb, var(--risk) 38%, var(--line));
}

.direction-choice [aria-pressed="true"] {
  box-shadow: inset 0 0 0 1px currentColor;
}

.direction-choice .buy[aria-pressed="true"] {
  color: var(--exchange);
  background: color-mix(in srgb, var(--exchange) 9%, var(--surface-2));
}

.direction-choice .sell[aria-pressed="true"] {
  color: var(--risk);
  background: color-mix(in srgb, var(--risk) 9%, var(--surface-2));
}

.lifecycle {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.35rem;
}

.lifecycle-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.lifecycle-row li {
  display: grid;
  gap: 0.15rem;
  min-width: 0;
  padding: 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-xs);
  background: var(--surface-2);
}

.lifecycle-row li > span,
.lifecycle-row li small {
  color: var(--text-faint);
  font: 0.62rem/1.3 var(--font-mono);
}

.lifecycle-row li.is-complete {
  border-color: color-mix(in srgb, var(--exchange) 34%, var(--line));
}

.lifecycle-row li.is-complete > span {
  color: var(--exchange);
}

.lifecycle-row li.is-current {
  border-color: color-mix(in srgb, var(--human) 44%, var(--line));
}

.lifecycle-row li.is-current > span {
  color: var(--human);
}

.lower-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.activity-feed {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.activity-feed li {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  gap: 0.55rem;
  align-items: start;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
}

.activity-feed li:last-child {
  border-bottom: 0;
}

.activity-feed time {
  color: var(--text-faint);
  font: 0.65rem/1.5 var(--font-mono);
}

.activity-feed p {
  margin: 0;
  font-size: 0.78rem;
}

.event-tag {
  padding: 0.18rem 0.35rem;
  border-radius: 999px;
  color: var(--platform);
  background: color-mix(in srgb, var(--platform) 9%, var(--surface-2));
  font: 700 0.6rem/1.3 var(--font-mono);
  white-space: nowrap;
}

.event-tag--model { color: var(--model); }
.event-tag--risk { color: var(--risk); }
.event-tag--exchange { color: var(--exchange); }

.arena-hud {
  display: grid;
  grid-template-columns: minmax(12rem, 1fr) minmax(9rem, 0.5fr) minmax(12rem, 1fr);
  gap: 1rem;
  align-items: center;
  margin-bottom: 0.75rem;
}

.phase-block {
  display: grid;
  gap: 0.25rem;
}

.phase-block > strong {
  color: var(--human);
  font: 700 1.2rem/1.2 var(--font-mono);
}

.phase-block > small {
  color: var(--text-faint);
  font: 0.68rem/1.4 var(--font-mono);
}

.arena-hud .countdown {
  width: min(12.5rem, 100%);
  justify-self: center;
}

.arena-hud .countdown i {
  font-style: normal;
}

.arena-hud .countdown small {
  display: block;
  margin-top: 0.35rem;
  color: var(--text-faint);
  font: 0.58rem/1 var(--font-mono);
  text-align: center;
}

.match-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.4rem;
}

.versus-grid {
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  margin-bottom: 0.75rem;
}

.versus-mark {
  display: grid;
  width: 3rem;
  height: 3rem;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--human);
  background: var(--surface);
  box-shadow: var(--shadow);
  font: 700 0.8rem/1 var(--font-mono);
}

.score-display {
  display: grid;
  gap: 0.2rem;
  margin-bottom: 0.8rem;
  padding: 0.8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.score-display > span,
.score-display > small {
  color: var(--text-faint);
  font: 0.68rem/1.4 var(--font-mono);
}

.score-display > strong {
  font: 700 clamp(1.4rem, 4vw, 2.3rem)/1.15 var(--font-mono);
}

.decision-card {
  margin-top: 0.8rem;
  padding: 0.8rem 0.8rem 0.8rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.decision-card > :last-child {
  margin-bottom: 0;
}

.decision-card p {
  font-size: 0.8rem;
}

.confidence {
  height: 0.35rem;
  margin-bottom: 0.3rem;
  overflow: hidden;
  border-radius: 999px;
  background: var(--surface-3);
}

.confidence span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--model);
}

.decision-card small {
  color: var(--text-faint);
  font: 0.63rem/1.3 var(--font-mono);
}

.arena-lower {
  grid-template-columns: minmax(0, 1.6fr) minmax(14rem, 0.8fr);
  margin-bottom: 0.75rem;
}

.match-resolution,
.replay-panel {
  margin-top: 0.75rem;
}

.resolution-grid {
  margin-top: 0.75rem;
}

.replay-scrubber {
  display: block;
}

.replay-scrubber input {
  padding-inline: 0;
  border: 0;
  background: transparent;
}

.replay-ticks {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  color: var(--text-faint);
  font: 0.6rem/1.4 var(--font-mono);
}

.replay-event {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  gap: 0.6rem;
  align-items: start;
  margin: 0.8rem 0;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.replay-event time {
  color: var(--text-faint);
  font: 0.65rem/1.5 var(--font-mono);
}

.replay-event p {
  margin: 0;
  font-size: 0.78rem;
}

.lifecycle-step {
  min-width: 0;
  padding: 0.55rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-xs);
  color: var(--text-faint);
  background: var(--surface-2);
  font: 600 0.63rem/1.25 var(--font-mono);
  text-align: center;
}

.lifecycle-step.is-complete {
  border-color: color-mix(in srgb, var(--exchange) 36%, var(--line));
  color: var(--exchange);
}

.lifecycle-step.is-current {
  border-color: color-mix(in srgb, var(--human) 42%, var(--line));
  color: var(--human);
}

.lifecycle-step.is-error {
  border-color: color-mix(in srgb, var(--risk) 42%, var(--line));
  color: var(--risk);
}

.arena-layout {
  display: grid;
  grid-template-columns: 1fr minmax(16rem, 0.7fr) 1fr;
  gap: 0.75rem;
}

.score-card {
  display: grid;
  gap: 0.8rem;
  text-align: center;
}

.score-value {
  color: var(--text);
  font: 700 clamp(1.7rem, 5vw, 3rem)/1 var(--font-mono);
}

.countdown {
  display: inline-flex;
  min-height: 4.5rem;
  align-items: baseline;
  justify-content: center;
  gap: 0.12rem;
  padding: 1rem 1.2rem;
  border: 1px solid var(--line);
  border-top: 3px solid var(--human);
  border-radius: var(--radius);
  color: var(--human);
  background: var(--surface-2);
  font: 700 clamp(1.4rem, 4vw, 2.3rem)/1 var(--font-mono);
}

.replay-controls {
  display: grid;
  grid-template-columns: auto minmax(8rem, 1fr) auto;
  gap: 0.65rem;
  align-items: center;
}

.readiness-list {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.readiness-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.65rem;
  align-items: center;
  padding: 0.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.readiness-item::before {
  display: grid;
  width: 1.35rem;
  height: 1.35rem;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--text-faint);
  content: "–";
  font: 700 0.7rem/1 var(--font-mono);
}

.readiness-item.is-ready::before {
  border-color: color-mix(in srgb, var(--exchange) 46%, var(--line));
  color: var(--exchange);
  content: "✓";
}

.readiness-item.is-blocked::before {
  border-color: color-mix(in srgb, var(--risk) 46%, var(--line));
  color: var(--risk);
  content: "!";
}

.empty-state {
  display: grid;
  min-height: 10rem;
  place-items: center;
  padding: 1.5rem;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  color: var(--text-faint);
  background: var(--surface-2);
  text-align: center;
}

.skeleton {
  min-height: 1em;
  border-radius: 0.35rem;
  background: linear-gradient(90deg, var(--surface-2), var(--surface-3), var(--surface-2));
  background-size: 220% 100%;
  animation: skeleton 1.5s linear infinite;
}

.action-status {
  min-height: 1.25rem;
  margin: 0;
  color: var(--text-dim);
  font: 0.73rem/1.5 var(--font-mono);
}

/* === T3 Trades component primitives (additive) ============================ */

/* §19.1 Mission workspace — 3-zone layout: conversation | strategy / timeline.
   A T3-Code mission surfaces a conversation log, the derived strategy, and the
   execution timeline as a deterministic triple. */
.mission-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  grid-template-areas:
    "conversation strategy"
    "timeline timeline";
  gap: 0.75rem;
}

.mission-workspace > [data-zone="conversation"] { grid-area: conversation; }
.mission-workspace > [data-zone="strategy"] { grid-area: strategy; }
.mission-workspace > [data-zone="timeline"] { grid-area: timeline; }

.mission-workspace > [data-zone] {
  min-width: 0;
}

/* The panel primitive inside each zone keeps its own surface and padding. */
.mission-workspace > [data-zone] > .panel,
.mission-workspace > [data-zone] > .section {
  height: 100%;
}

/* Narrow variant for the controls prototype: stack conversation above strategy,
   with the timeline pinned beneath both. */
.mission-workspace--narrow {
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "conversation"
    "strategy"
    "timeline";
}

/* .mission-pill — small inline label for mission mode/direction, e.g.
   "5m breakout continuation" or "conditional long". Inherits .pill geometry;
   the left accent border takes the element's [data-authority] color. */
.mission-pill {
  display: inline-flex;
  width: max-content;
  max-width: 100%;
  align-items: center;
  gap: 0.4rem;
  padding: 0.32rem 0.6rem 0.32rem 0.5rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--authority-color, var(--platform));
  border-radius: 999px;
  color: var(--text-dim);
  background: var(--surface-2);
  font: 600 0.68rem/1.2 var(--font-mono);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mission-pill[data-authority] {
  /* [data-authority] sets --authority-color via the shared authority map above. */
  border-left-color: var(--authority-color, var(--platform));
}

/* .loop-diagram — variant of .diagram-flow for the §3 architectural loop with
   6+ nodes. Wraps to multiple lines when narrow; arrows hide cleanly on wrap so
   a trailing arrow never dangles at a row edge. */
.loop-diagram {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 0.5rem 0.65rem;
  min-width: 0;
}

.loop-diagram .diagram-node,
.loop-diagram .flow-step {
  flex: 0 0 auto;
}

/* Arrows sit between nodes. When wrapping, hide any arrow that lands at the
   end of its visual line by letting it collapse when it has no following
   sibling node on the same line. A trailing arrow is the last flex child. */
.loop-diagram .diagram-arrow,
.loop-diagram .flow-arrow {
  flex: 0 0 auto;
  align-self: center;
}

.loop-diagram .diagram-arrow:last-child,
.loop-diagram .flow-arrow:last-child {
  /* A trailing arrow at the loop's end is still meaningful (it loops back);
     keep it visible but muted so it reads as a return path, not a dead end. */
  color: var(--text-faint);
}

/* .harness-badge — chips identifying the T3-managed harness (Codex/Claude/
   OpenCode). All three stay within the model-authority family but carry a
   subtle distinct accent so an operator can tell them apart at a glance. */
.harness-badge {
  --authority-color: var(--model);
  display: inline-flex;
  width: max-content;
  align-items: center;
  gap: 0.4rem;
  padding: 0.32rem 0.58rem;
  border: 1px solid color-mix(in srgb, var(--authority-color) 34%, var(--line));
  border-radius: 999px;
  color: var(--authority-color);
  background: color-mix(in srgb, var(--authority-color) 8%, var(--surface));
  font: 600 0.66rem/1 var(--font-mono);
  white-space: nowrap;
}

.harness-badge::before {
  width: 0.42rem;
  height: 0.42rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: currentColor;
  content: "";
}

.harness-badge[data-harness="codex"] {
  --authority-color: var(--model);
}

.harness-badge[data-harness="claude"] {
  /* A warmer cyan within the model family — still model-authority, but distinct. */
  --authority-color: color-mix(in srgb, var(--model) 60%, var(--identity) 32%);
}

.harness-badge[data-harness="opencode"] {
  /* A greener cyan, leaning toward the exchange edge of the model family. */
  --authority-color: color-mix(in srgb, var(--model) 58%, var(--exchange) 34%);
}

.site-footer {
  display: flex;
  width: min(100% - (2 * var(--pad)), var(--page));
  margin: 0 auto;
  padding-block: 1.5rem 2.5rem;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--line);
  color: var(--text-faint);
  font: 0.7rem/1.5 var(--font-mono);
}

/* Overview and execution plan
 * This page separates verified upstream behavior from proposed trading work.
 * Its layout borrows the density of an implementation plan, not a dashboard.
 */
.overview-page {
  --overview-ink: color-mix(in srgb, var(--text) 94%, var(--model));
  --overview-wash: color-mix(in srgb, var(--surface) 82%, transparent);
  background:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px),
    radial-gradient(circle at 13% 3%, color-mix(in srgb, var(--model) 10%, transparent), transparent 30rem),
    radial-gradient(circle at 92% 24%, color-mix(in srgb, var(--exchange) 7%, transparent), transparent 28rem),
    var(--bg);
  background-size: 4rem 4rem, 4rem 4rem, auto, auto, auto;
  background-position: center top;
}

.overview-main {
  width: min(100% - (2 * var(--pad)), 1320px);
  padding-top: clamp(2.2rem, 5vw, 5rem);
}

.overview-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(19rem, 0.7fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: end;
  min-height: min(44rem, calc(100dvh - 8rem));
  padding: clamp(1rem, 2vw, 2rem) 0 clamp(3rem, 7vw, 6rem);
  overflow: clip;
  border-bottom: 1px solid var(--line-strong);
}

.overview-hero::before {
  position: absolute;
  z-index: -1;
  top: -5rem;
  right: -7rem;
  width: min(42vw, 34rem);
  aspect-ratio: 1;
  border: 1px solid color-mix(in srgb, var(--model) 22%, transparent);
  border-radius: 50%;
  background:
    radial-gradient(circle, color-mix(in srgb, var(--model) 8%, transparent), transparent 63%),
    repeating-radial-gradient(circle, transparent 0 2.6rem, color-mix(in srgb, var(--line-strong) 50%, transparent) 2.65rem 2.7rem);
  content: "";
  opacity: 0.72;
}

.overview-hero__copy {
  position: relative;
  z-index: 1;
}

.overview-hero h1 {
  max-width: 13.5ch;
  margin: 1rem 0 1.4rem;
  color: var(--overview-ink);
  font-size: clamp(3.2rem, 7.5vw, 7rem);
  line-height: 0.93;
  letter-spacing: -0.065em;
  text-wrap: balance;
}

.overview-hero .page-lead {
  max-width: 64ch;
  color: var(--text-dim);
  font-size: clamp(1.03rem, 1.4vw, 1.22rem);
  line-height: 1.7;
  text-wrap: pretty;
}

.status-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 0.85rem;
  align-items: center;
  margin-bottom: 1.8rem;
}

.status-line__item {
  position: relative;
  padding-left: 0.85rem;
  color: var(--text-faint);
  font: 600 0.72rem/1.2 var(--font-mono);
}

.status-line__item::before {
  position: absolute;
  top: 50%;
  left: 0;
  width: 0.3rem;
  height: 0.3rem;
  border-radius: 50%;
  background: var(--line-strong);
  content: "";
  transform: translateY(-50%);
}

.claim {
  display: inline-flex;
  width: max-content;
  align-items: center;
  gap: 0.38rem;
  padding: 0.36rem 0.56rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-xs);
  color: var(--text-dim);
  background: var(--surface);
  font: 700 0.68rem/1 var(--font-mono);
  letter-spacing: 0.035em;
  white-space: nowrap;
}

.claim::before {
  width: 0.38rem;
  height: 0.38rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: currentColor;
  content: "";
}

.claim--verified {
  color: var(--exchange);
  border-color: color-mix(in srgb, var(--exchange) 38%, var(--line));
  background: color-mix(in srgb, var(--exchange) 7%, var(--surface));
}

.claim--proposed {
  color: var(--model);
  border-color: color-mix(in srgb, var(--model) 38%, var(--line));
  background: color-mix(in srgb, var(--model) 7%, var(--surface));
}

.claim--model {
  color: var(--identity);
  border-color: color-mix(in srgb, var(--identity) 38%, var(--line));
  background: color-mix(in srgb, var(--identity) 7%, var(--surface));
}

.claim--open {
  color: var(--human);
  border-color: color-mix(in srgb, var(--human) 38%, var(--line));
  background: color-mix(in srgb, var(--human) 7%, var(--surface));
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.2rem;
  align-items: center;
  margin-top: 2rem;
}

.hero-actions .button {
  min-height: 3rem;
  padding-inline: 1.1rem;
}

.text-link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-dim);
  font-weight: 600;
  text-decoration: none;
  transition: color 180ms ease, transform 180ms ease;
}

.text-link:hover {
  color: var(--text);
  transform: translateY(-1px);
}

.verdict-card {
  position: relative;
  padding: 1.35rem;
  border: 1px solid color-mix(in srgb, var(--risk) 28%, var(--line));
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--risk) 7%, transparent), transparent 46%),
    color-mix(in srgb, var(--surface) 94%, transparent);
  box-shadow: 0 28px 70px -44px color-mix(in srgb, var(--risk) 46%, #000);
}

.verdict-card::before {
  position: absolute;
  inset: 0.55rem 0.55rem auto auto;
  width: 2.6rem;
  height: 2.6rem;
  border-top: 1px solid var(--risk);
  border-right: 1px solid var(--risk);
  border-radius: 0 var(--radius-sm) 0 0;
  content: "";
  opacity: 0.5;
}

.verdict-card__kicker {
  margin-bottom: 1.4rem;
  color: var(--risk);
  font: 700 0.68rem/1.2 var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.verdict-card h2 {
  max-width: 16ch;
  margin-bottom: 0.85rem;
  font-size: clamp(1.45rem, 2.4vw, 2.1rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
}

.verdict-facts {
  display: grid;
  gap: 0;
  margin: 1.4rem 0 0;
}

.verdict-facts > div {
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr);
  gap: 0.75rem;
  padding-block: 0.65rem;
  border-top: 1px solid var(--line);
}

.verdict-facts dt,
.verdict-facts dd {
  margin: 0;
  font-size: 0.78rem;
}

.verdict-facts dt {
  color: var(--text-faint);
  font-family: var(--font-mono);
}

.verdict-facts dd {
  min-width: 0;
  color: var(--text);
  overflow-wrap: anywhere;
}

.overview-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0 0 clamp(4rem, 9vw, 8rem);
  border-bottom: 1px solid var(--line);
}

.overview-strip > div {
  min-width: 0;
  padding: 1.2rem 1rem 1.3rem 0;
}

.overview-strip > div + div {
  padding-left: 1rem;
  border-left: 1px solid var(--line);
}

.overview-strip p {
  max-width: 24ch;
  margin: 0.65rem 0 0;
  color: var(--text-faint);
  font-size: 0.78rem;
  line-height: 1.5;
}

.overview-section {
  padding-block: clamp(3.8rem, 8vw, 7rem);
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--topbar-height) + 3rem);
}

.overview-section:first-of-type {
  padding-top: 0;
}

.section-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(18rem, 0.58fr);
  gap: 2rem 5rem;
  align-items: end;
  margin-bottom: clamp(2rem, 5vw, 3.8rem);
}

.section-intro h2 {
  max-width: 20ch;
  margin: 0.45rem 0 0;
  font-size: clamp(2rem, 4.5vw, 4rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.section-intro > p {
  max-width: 54ch;
  margin: 0 0 0.15rem;
  color: var(--text-dim);
  font-size: 1rem;
  line-height: 1.7;
  text-wrap: pretty;
}

.section-index {
  margin: 0;
  color: var(--model);
  font: 700 0.72rem/1.2 var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.split-ledger {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--overview-wash);
}

.ledger {
  min-width: 0;
  padding: clamp(1.2rem, 3vw, 2rem);
}

.ledger + .ledger {
  border-left: 1px solid var(--line-strong);
}

.ledger--keep {
  background: linear-gradient(180deg, color-mix(in srgb, var(--exchange) 5%, transparent), transparent 12rem);
}

.ledger--build {
  background: linear-gradient(180deg, color-mix(in srgb, var(--model) 5%, transparent), transparent 12rem);
}

.ledger header {
  min-height: 7.4rem;
  margin-bottom: 0.75rem;
}

.ledger h3 {
  max-width: 18ch;
  margin: 1rem 0 0;
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  letter-spacing: -0.025em;
}

.ledger-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.ledger-list li {
  display: grid;
  grid-template-columns: minmax(7.5rem, 0.42fr) minmax(0, 1fr);
  gap: 1rem;
  padding-block: 1rem;
  border-top: 1px solid var(--line);
}

.ledger-list strong {
  font-size: 0.86rem;
}

.ledger-list span {
  color: var(--text-dim);
  font-size: 0.86rem;
  line-height: 1.55;
}

.source-note {
  display: grid;
  grid-template-columns: minmax(10rem, 0.3fr) minmax(0, 1fr);
  gap: 1rem;
  margin-top: 1rem;
  padding: 1.1rem 1.25rem;
  border-left: 2px solid var(--human);
  background: color-mix(in srgb, var(--human) 5%, var(--surface));
}

.source-note strong {
  font-size: 0.85rem;
}

.source-note p {
  max-width: 80ch;
  margin: 0;
  font-size: 0.88rem;
}

.mission-flow {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  list-style: none;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  counter-reset: flow;
}

.mission-flow__step {
  position: relative;
  display: grid;
  min-height: 17rem;
  align-content: space-between;
  gap: 1.2rem;
  padding: 1.25rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(145deg, color-mix(in srgb, var(--flow-color) 5%, transparent), transparent 55%);
}

.mission-flow__step:nth-child(4n) {
  border-right: 0;
}

.mission-flow__step:nth-last-child(-n + 4) {
  border-bottom: 0;
}

.mission-flow__step::after {
  position: absolute;
  z-index: 2;
  top: 50%;
  right: -0.72rem;
  display: grid;
  width: 1.45rem;
  height: 1.45rem;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--text-faint);
  background: var(--surface-2);
  content: "→";
  font: 700 0.72rem/1 var(--font-mono);
  transform: translateY(-50%);
}

.mission-flow__step:nth-child(4n)::after {
  top: auto;
  right: 50%;
  bottom: -0.72rem;
  content: "↓";
  transform: translateX(50%);
}

.mission-flow__step:last-child::after {
  content: "↻";
  color: var(--model);
}

.flow-human { --flow-color: var(--human); }
.flow-platform { --flow-color: var(--platform); }
.flow-model { --flow-color: var(--model); }
.flow-risk { --flow-color: var(--risk); }
.flow-exchange { --flow-color: var(--exchange); }

.mission-flow__number {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--flow-color) 55%, var(--line));
  border-radius: 50%;
  color: var(--flow-color);
  font: 700 0.75rem/1 var(--font-mono);
}

.mission-flow__step strong {
  display: block;
  margin-bottom: 0.65rem;
  font-size: 1rem;
}

.mission-flow__step p {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.55;
}

.mission-flow__step small {
  color: var(--flow-color);
  font: 700 0.66rem/1.2 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.strategy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(20rem, 0.65fr);
  gap: 1rem;
  align-items: start;
}

.strategy-spec,
.acceptance-scenario {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
}

.strategy-spec > header {
  padding: clamp(1.2rem, 3vw, 2rem);
  border-bottom: 1px solid var(--line);
}

.strategy-spec h3,
.acceptance-scenario h3 {
  margin: 0.9rem 0 0.55rem;
  font-size: clamp(1.35rem, 2.3vw, 2rem);
  letter-spacing: -0.025em;
}

.strategy-spec header p {
  max-width: 60ch;
  margin: 0;
}

.strategy-table {
  margin: 0;
}

.strategy-table > div {
  display: grid;
  grid-template-columns: 10.5rem minmax(0, 1fr);
  gap: 1.5rem;
  padding: 1rem clamp(1.2rem, 3vw, 2rem);
  border-bottom: 1px solid var(--line);
}

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

.strategy-table dt,
.strategy-table dd {
  margin: 0;
  font-size: 0.88rem;
}

.strategy-table dt {
  color: var(--text);
}

.strategy-table dd {
  line-height: 1.6;
}

.acceptance-scenario {
  position: sticky;
  top: calc(var(--topbar-height) + 1rem);
  padding: clamp(1.2rem, 3vw, 1.65rem);
  border-color: color-mix(in srgb, var(--model) 28%, var(--line));
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--model) 8%, transparent), transparent 45%),
    var(--surface);
}

.scenario-command {
  margin: 1rem 0 1.2rem;
  padding: 0.8rem;
  border-left: 2px solid var(--model);
  background: var(--surface-2);
}

.scenario-command code {
  padding: 0;
  border: 0;
  background: transparent;
  font-size: 0.82rem;
  line-height: 1.6;
}

.acceptance-scenario dl {
  margin: 0 0 1.2rem;
}

.acceptance-scenario dl > div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.68rem;
  border-top: 1px solid var(--line);
}

.acceptance-scenario dt,
.acceptance-scenario dd {
  margin: 0;
  font-size: 0.8rem;
}

.acceptance-scenario dt {
  color: var(--text-faint);
}

.acceptance-scenario dd {
  color: var(--text);
  text-align: right;
}

.open-decision {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1.2rem;
  margin-top: 1rem;
  padding: 1.1rem 1.25rem;
  border: 1px solid color-mix(in srgb, var(--human) 30%, var(--line));
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--human) 5%, var(--surface));
}

.open-decision h3 {
  margin-bottom: 0.35rem;
}

.open-decision p {
  max-width: 82ch;
  margin: 0;
  font-size: 0.88rem;
}

.authority-matrix {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
}

.authority-matrix table {
  min-width: 56rem;
  border-collapse: collapse;
}

.authority-matrix th,
.authority-matrix td {
  padding: 1rem 1.1rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.authority-matrix thead th {
  color: var(--text-faint);
  background: var(--surface-2);
  font: 700 0.68rem/1.2 var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.authority-matrix tbody th {
  min-width: 9.5rem;
  color: var(--text);
  font-size: 0.85rem;
  white-space: nowrap;
}

.authority-matrix td {
  color: var(--text-dim);
  font-size: 0.86rem;
  line-height: 1.55;
}

.authority-matrix tr:last-child th,
.authority-matrix tr:last-child td {
  border-bottom: 0;
}

.owner-dot {
  display: inline-block;
  width: 0.48rem;
  height: 0.48rem;
  margin-right: 0.55rem;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 3px color-mix(in srgb, currentColor 12%, transparent);
}

.owner-human { color: var(--human); }
.owner-model { color: var(--model); }
.owner-platform { color: var(--platform); }
.owner-risk { color: var(--risk); }
.owner-identity { color: var(--identity); }
.owner-exchange { color: var(--exchange); }

.build-plan {
  margin: 0;
  padding: 0;
  list-style: none;
}

.build-phase {
  display: grid;
  grid-template-columns: 7.2rem minmax(0, 1fr);
  gap: 1rem;
}

.phase-marker {
  position: relative;
  display: grid;
  align-content: start;
  justify-items: center;
  gap: 0.55rem;
}

.phase-marker::after {
  width: 1px;
  min-height: 3rem;
  flex: 1;
  background: var(--line-strong);
  content: "";
}

.build-phase:last-child .phase-marker::after {
  display: none;
}

.phase-marker span {
  display: grid;
  width: 3.25rem;
  height: 3.25rem;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--model);
  background: var(--surface);
  box-shadow: inset 0 0 0 0.35rem var(--surface-2);
  font: 700 0.9rem/1 var(--font-mono);
}

.phase-marker small {
  color: var(--text-faint);
  font: 700 0.64rem/1.2 var(--font-mono);
  text-align: center;
  text-transform: uppercase;
}

.build-phase > article {
  margin-bottom: 1rem;
  padding: clamp(1.1rem, 2.5vw, 1.55rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
}

.build-phase article > header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 0.9rem;
}

.build-phase h3 {
  margin: 0.75rem 0 0;
  font-size: clamp(1.15rem, 2vw, 1.45rem);
}

.phase-dependency {
  padding-top: 0.2rem;
  color: var(--text-faint);
  font: 700 0.68rem/1.3 var(--font-mono);
  white-space: nowrap;
}

.build-phase article > p {
  max-width: 82ch;
  margin-bottom: 1rem;
}

.phase-proof {
  display: grid;
  grid-template-columns: 8.5rem minmax(0, 1fr);
  gap: 1rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
  font-size: 0.83rem;
}

.phase-proof strong {
  color: var(--exchange);
  font-family: var(--font-mono);
}

.phase-proof span {
  color: var(--text-dim);
}

.acceptance-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: color-mix(in srgb, var(--surface) 94%, transparent);
}

.acceptance-grid article {
  min-height: 13.5rem;
  padding: 1.2rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.acceptance-grid article:nth-child(4n) {
  border-right: 0;
}

.acceptance-grid article:nth-last-child(-n + 4) {
  border-bottom: 0;
}

.acceptance-grid__number {
  color: var(--exchange);
  font: 700 0.72rem/1 var(--font-mono);
}

.acceptance-grid h3 {
  margin: 2.6rem 0 0.55rem;
  font-size: 1.08rem;
}

.acceptance-grid p {
  margin: 0;
  font-size: 0.83rem;
  line-height: 1.55;
}

.scope-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--line);
}

.scope-grid article {
  min-height: 11rem;
  padding: 1.2rem;
  background: var(--surface);
}

.scope-grid h3 {
  margin-bottom: 1.6rem;
  font-size: 1rem;
}

.scope-grid p {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.55;
}

.evidence-section {
  position: relative;
}

.evidence-method {
  margin: 0 0 1rem;
}

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

.evidence-grid article {
  min-width: 0;
  padding: 1.25rem;
  border-top: 2px solid var(--model);
  background: var(--surface);
}

.evidence-grid article:nth-child(2) {
  border-top-color: var(--identity);
}

.evidence-grid article:nth-child(3) {
  border-top-color: var(--exchange);
}

.evidence-grid h3 {
  margin-bottom: 1rem;
}

.evidence-grid ul {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.evidence-grid li {
  padding-block: 0.75rem;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
  line-height: 1.5;
}

.evidence-grid a {
  display: inline-block;
  color: var(--text-dim);
  overflow-wrap: anywhere;
  text-decoration-color: color-mix(in srgb, var(--model) 50%, transparent);
}

.evidence-grid a:hover {
  color: var(--text);
}

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

.deep-links a {
  position: relative;
  display: grid;
  min-height: 8.5rem;
  align-content: space-between;
  gap: 1rem;
  padding: 1.1rem;
  color: var(--text);
  background: var(--surface);
  text-decoration: none;
  transition: transform 180ms ease;
}

.deep-links a::after {
  position: absolute;
  top: 1rem;
  right: 1rem;
  color: var(--text-faint);
  content: "↗";
  font-family: var(--font-mono);
}

.deep-links a:hover,
.deep-links a:focus-visible {
  background: var(--surface-2);
}

.deep-links span {
  font-weight: 700;
}

.deep-links small {
  max-width: 24ch;
  color: var(--text-dim);
  font-size: 0.76rem;
  line-height: 1.45;
}

@keyframes skeleton {
  to { background-position: -220% 0; }
}

@media (max-width: 1024px) {
  .overview-hero {
    grid-template-columns: minmax(0, 1.2fr) minmax(17rem, 0.7fr);
    min-height: auto;
  }

  .overview-strip,
  .mission-flow,
  .acceptance-grid,
  .deep-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .mission-flow__step {
    min-height: 14rem;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

  .mission-flow__step:nth-child(2n) {
    border-right: 0;
  }

  .mission-flow__step:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .mission-flow__step:nth-child(4n)::after {
    top: 50%;
    right: -0.72rem;
    bottom: auto;
    content: "→";
    transform: translateY(-50%);
  }

  .mission-flow__step:nth-child(2n)::after {
    top: auto;
    right: 50%;
    bottom: -0.72rem;
    content: "↓";
    transform: translateX(50%);
  }

  .mission-flow__step:last-child::after {
    content: "↻";
  }

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

  .acceptance-grid article:nth-child(2n) {
    border-right: 0;
  }

  .acceptance-grid article:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

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

  .evidence-grid article:last-child {
    grid-column: 1 / -1;
  }

  .trading-layout {
    grid-template-columns: minmax(9rem, 0.65fr) minmax(21rem, 2fr);
  }

  .trading-layout > :last-child {
    grid-column: 1 / -1;
  }

  .grid-4,
  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  /* §19.1 mission workspace collapses to a single column; the timeline is
     pinned last beneath the conversation and strategy zones. */
  .mission-workspace {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "conversation"
      "strategy"
      "timeline";
  }
}

@media (min-width: 769px) and (max-width: 1199px) {
  .site-nav,
  [data-site-nav] {
    justify-content: flex-start;
    overflow-x: auto;
    scrollbar-width: thin;
  }
}

@media (max-width: 768px) {
  :root {
    --topbar-height: 3.9rem;
  }

  .topbar {
    min-height: var(--topbar-height);
  }

  .brand-copy span {
    display: none;
  }

  .nav-toggle {
    display: inline-grid;
  }

  .site-nav,
  [data-site-nav] {
    position: sticky;
    z-index: 39;
    top: var(--topbar-height);
    display: flex;
    width: 100%;
    justify-content: flex-start;
    padding: 0.35rem var(--pad);
    overflow-x: auto;
    border-bottom: 1px solid var(--line-strong);
    background: var(--surface);
    box-shadow: var(--shadow);
    scrollbar-width: thin;
  }

  html.js-nav-enhanced .site-nav,
  html.js-nav-enhanced [data-site-nav] {
    position: fixed;
    z-index: 45;
    inset: var(--topbar-height) 0 auto;
    display: none;
    max-height: calc(100vh - var(--topbar-height));
    padding: 0.75rem var(--pad) 1rem;
    overflow: auto;
  }

  html.js-nav-enhanced body.nav-open .site-nav,
  html.js-nav-enhanced body.nav-open [data-site-nav],
  html.js-nav-enhanced .site-nav[data-open="true"],
  html.js-nav-enhanced [data-site-nav][data-open="true"] {
    display: block;
  }

  .nav-links {
    display: grid;
  }

  .nav-links a,
  .site-nav > a {
    width: auto;
    min-height: 2.75rem;
  }

  html.js-nav-enhanced .nav-links a,
  html.js-nav-enhanced .site-nav > a {
    width: 100%;
  }

  body.nav-open::after {
    position: fixed;
    z-index: 40;
    inset: var(--topbar-height) 0 0;
    background: var(--overlay);
    content: "";
  }

  .page-main,
  main {
    padding-block: 2rem;
  }

  .overview-main {
    padding-top: 1.5rem;
  }

  .overview-hero {
    grid-template-columns: 1fr;
    gap: 2.25rem;
    align-items: start;
    padding-bottom: 3rem;
  }

  .overview-hero::before {
    top: -1rem;
    right: -8rem;
    width: 24rem;
  }

  .overview-hero h1 {
    max-width: 15ch;
    font-size: clamp(2.7rem, 13vw, 4.8rem);
  }

  .verdict-card {
    max-width: 34rem;
  }

  .overview-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-bottom: 2.5rem;
  }

  .overview-strip > div:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }

  .overview-strip > div:nth-child(even) {
    padding-left: 1rem;
    border-left: 1px solid var(--line);
  }

  .overview-strip > div:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .overview-section {
    padding-block: 3.5rem;
  }

  .section-intro,
  .strategy-layout,
  .split-ledger {
    grid-template-columns: 1fr;
  }

  .section-intro {
    gap: 1rem;
  }

  .section-intro h2 {
    max-width: 22ch;
  }

  .ledger + .ledger {
    border-top: 1px solid var(--line-strong);
    border-left: 0;
  }

  .ledger header {
    min-height: auto;
  }

  .acceptance-scenario {
    position: static;
  }

  .mission-flow {
    grid-template-columns: 1fr;
  }

  .mission-flow__step {
    min-height: auto;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .mission-flow__step:nth-child(2n),
  .mission-flow__step:nth-last-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .mission-flow__step:last-child {
    border-bottom: 0;
  }

  .mission-flow__step small {
    grid-column: 2;
  }

  .mission-flow__step::after,
  .mission-flow__step:nth-child(2n)::after,
  .mission-flow__step:nth-child(4n)::after {
    top: auto;
    right: auto;
    bottom: -0.72rem;
    left: 1.55rem;
    content: "↓";
    transform: none;
  }

  .mission-flow__step:last-child::after {
    bottom: 0.7rem;
    left: auto;
    right: 0.8rem;
    content: "↻";
  }

  .build-phase {
    grid-template-columns: 4rem minmax(0, 1fr);
  }

  .phase-marker small {
    display: none;
  }

  .build-phase article > header {
    display: grid;
  }

  .phase-dependency {
    grid-row: 1;
  }

  .scope-grid,
  .evidence-grid {
    grid-template-columns: 1fr;
  }

  .evidence-grid article:last-child {
    grid-column: auto;
  }

  .grid-3,
  .grid-2,
  .trading-layout,
  .arena-layout,
  .cockpit-grid,
  .arena-hud,
  .arena-lower {
    grid-template-columns: 1fr;
  }

  .trading-layout > :last-child {
    grid-column: auto;
  }

  .prototype-toolbar {
    position: static;
    align-items: stretch;
    flex-direction: column;
  }

  .state-switcher {
    max-width: none;
  }

  .section-heading {
    display: grid;
  }

  .arena-layout > :nth-child(2) {
    grid-row: 1;
  }

  .arena-hud .countdown {
    grid-row: 1;
  }

  .match-meta {
    justify-content: flex-start;
  }

  .prototype-grid--onboarding {
    grid-template-columns: 1fr;
  }

  .prototype-grid--onboarding > :last-child {
    grid-column: auto;
  }

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

  .versus-mark {
    width: 2.5rem;
    height: 2.5rem;
    margin-inline: auto;
  }

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

  .countdown {
    width: min(13rem, 62vw);
    margin-inline: auto;
  }
}

  @media (max-width: 520px) {
  :root {
    --pad: 0.85rem;
  }

  body {
    font-size: 0.91rem;
  }

  h1 {
    font-size: clamp(1.8rem, 11vw, 2.6rem);
  }

  .topbar,
  .site-header {
    position: relative;
    flex-wrap: wrap;
  }

  .header-actions,
  .topbar-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .site-nav,
  [data-site-nav] {
    top: 0;
  }

  .section,
  .panel {
    padding: 0.85rem;
    border-radius: var(--radius);
  }

  .panel-header,
  .card-head {
    flex-wrap: wrap;
  }

  .section-heading > * {
    min-width: 0;
  }

  .section-heading h2,
  .section-heading h3,
  li code {
    overflow-wrap: anywhere;
  }

  .overview-page {
    background-size: 2.5rem 2.5rem, 2.5rem 2.5rem, auto, auto, auto;
  }

  .overview-page .topbar,
  .overview-page .site-header {
    position: sticky;
    flex-wrap: nowrap;
  }

  .overview-page .header-actions,
  .overview-page .topbar-actions {
    width: auto;
    justify-content: flex-end;
  }

  .overview-page .brand small {
    display: none;
  }

  .overview-page .site-nav,
  .overview-page [data-site-nav] {
    top: var(--topbar-height);
  }

  .overview-hero h1 {
    font-size: clamp(2.4rem, 14vw, 3.5rem);
    line-height: 0.96;
  }

  .status-line__item {
    width: calc(50% - 0.5rem);
  }

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

  .hero-actions .button,
  .hero-actions .text-link {
    justify-content: center;
  }

  .verdict-facts > div,
  .ledger-list li,
  .source-note,
  .strategy-table > div,
  .open-decision,
  .phase-proof {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .overview-strip,
  .acceptance-grid,
  .deep-links {
    grid-template-columns: 1fr;
  }

  .overview-strip > div,
  .overview-strip > div:nth-child(even),
  .overview-strip > div:nth-child(odd) {
    padding: 0.9rem 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .overview-strip > div:first-of-type {
    border-top: 0;
  }

  .overview-strip p {
    max-width: none;
  }

  .section-intro h2 {
    font-size: clamp(1.9rem, 11vw, 2.8rem);
  }

  .acceptance-scenario dl > div {
    display: grid;
    gap: 0.2rem;
  }

  .acceptance-scenario dd {
    text-align: left;
  }

  .build-phase {
    grid-template-columns: 3.2rem minmax(0, 1fr);
    gap: 0.65rem;
  }

  .phase-marker span {
    width: 2.65rem;
    height: 2.65rem;
  }

  .acceptance-grid article,
  .acceptance-grid article:nth-child(2n),
  .acceptance-grid article:nth-last-child(-n + 2) {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

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

  .acceptance-grid h3 {
    margin-top: 1.4rem;
  }

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

  .scope-grid article {
    min-height: auto;
  }

  .deep-links a {
    min-height: 7rem;
  }

  .grid-4,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .metric {
    padding: 0.65rem;
  }

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

  .lifecycle-row,
  .checklist,
  .book-grid {
    grid-template-columns: 1fr;
  }

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

  .activity-feed li,
  .replay-event {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .activity-feed p,
  .replay-event p {
    grid-column: 1 / -1;
  }

  .site-footer {
    display: grid;
    gap: 0.35rem;
  }

  .replay-controls {
    grid-template-columns: 1fr auto;
  }

  .replay-controls input[type="range"] {
    grid-column: 1 / -1;
    grid-row: 1;
  }
}

@media (min-width: 1440px) {
  :root {
    --page: 1320px;
  }
}

@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;
  }
}

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

  .topbar,
  .prototype-toolbar,
  .state-switcher,
  .copy-button,
  .site-footer,
  .skip-link,
  button {
    display: none !important;
  }

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

  .page-shell,
  main {
    width: 100%;
  }

  .panel,
  .section,
  .card {
    break-inside: avoid;
    box-shadow: none;
  }

  /* The mission workspace is a grid in screen mode; flatten it for paper so
     each zone flows as a normal block and avoids breaking mid-zone. */
  .mission-workspace,
  .mission-workspace--narrow {
    display: block;
  }

  .mission-workspace > [data-zone] {
    break-inside: avoid;
    margin-bottom: 0.75rem;
  }
}

/* Git strategy page ------------------------------------------------------ */

.git-hero h1 {
  max-width: 16ch;
}

.git-anchor-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.5rem;
}

.git-anchor-nav a {
  padding: 0.45rem 0.72rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-dim);
  background: color-mix(in srgb, var(--surface) 78%, transparent);
  font-size: 0.78rem;
  font-weight: 700;
  text-decoration: none;
}

.git-anchor-nav a:hover,
.git-anchor-nav a:focus-visible {
  border-color: color-mix(in srgb, var(--model) 50%, var(--line));
  color: var(--text);
  background: color-mix(in srgb, var(--model) 9%, var(--surface));
}

.git-answer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.25rem 0;
}

.git-answer {
  position: relative;
  min-width: 0;
  padding: 1.25rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
}

.git-answer::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  content: "";
}

.git-answer--yes::before {
  background: var(--exchange);
}

.git-answer--yes .authority-label {
  color: var(--exchange);
}

.git-answer--no::before {
  background: var(--human);
}

.git-answer--no .authority-label {
  color: var(--human);
}

.git-answer > :last-child {
  margin-bottom: 0;
}

.git-remote-map {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: stretch;
  gap: 0.7rem;
  margin: 1.25rem 0;
}

.git-remote-map article {
  min-width: 0;
  padding: 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
}

.git-remote-map article > :last-child {
  display: block;
  margin-bottom: 0;
  color: var(--text-faint);
}

.git-remote-map p,
.git-remote-map code {
  overflow-wrap: anywhere;
}

.git-map-label {
  color: var(--text-faint);
  font: 700 0.66rem/1.2 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.git-map-arrow {
  align-self: center;
  color: var(--exchange);
  font-size: 1.25rem;
}

.git-reference-table {
  margin-top: 1.1rem;
}

.git-reference-table th:first-child {
  width: 24%;
}

.git-reference-table th:last-child {
  width: 21%;
}

.git-branch-map {
  display: grid;
  gap: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
}

.git-branch-map article {
  display: grid;
  grid-template-columns: minmax(11rem, 0.7fr) minmax(9rem, 0.55fr) minmax(0, 1.5fr);
  gap: 1rem;
  align-items: baseline;
  min-width: 0;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--line);
}

.git-branch-map article:last-child {
  border-bottom: 0;
}

.git-branch-map strong {
  font-size: 0.86rem;
}

.git-branch-map span {
  color: var(--text-dim);
  font-size: 0.86rem;
}

.git-sync-steps {
  display: grid;
  gap: 0;
  margin: 1.1rem 0 1.35rem;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  counter-reset: sync-step;
  list-style: none;
}

.git-sync-steps li {
  display: grid;
  grid-template-columns: 2.3rem minmax(7rem, 0.35fr) minmax(0, 1.65fr);
  gap: 0.75rem;
  align-items: baseline;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--line);
  counter-increment: sync-step;
  background: var(--surface-2);
}

.git-sync-steps li:last-child {
  border-bottom: 0;
}

.git-sync-steps li::before {
  color: var(--exchange);
  content: counter(sync-step, decimal-leading-zero);
  font: 700 0.72rem/1 var(--font-mono);
}

.git-sync-steps span {
  color: var(--text-dim);
}

.git-rule-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.git-rule-grid article {
  min-width: 0;
  padding: 1rem;
  background: var(--surface-2);
}

.git-rule-grid article > :last-child {
  margin-bottom: 0;
}

.git-proof {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) repeat(2, minmax(0, 0.8fr));
  gap: 1rem;
  margin: 1.15rem 0;
}

.git-proof dl,
.git-proof article {
  min-width: 0;
  margin: 0;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
}

.git-proof dl {
  display: grid;
  gap: 0.65rem;
}

.git-proof dl > div {
  display: grid;
  gap: 0.1rem;
}

.git-proof dt {
  color: var(--text-faint);
  font: 700 0.68rem/1.2 var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.git-proof dd {
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
}

.git-proof article > :last-child {
  margin-bottom: 0;
}

@media (max-width: 900px) {
  .git-remote-map {
    grid-template-columns: 1fr;
  }

  .git-map-arrow {
    justify-self: center;
    transform: rotate(90deg);
  }

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

  .git-proof {
    grid-template-columns: 1fr 1fr;
  }

  .git-proof dl {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .git-answer-grid,
  .git-rule-grid,
  .git-proof {
    grid-template-columns: 1fr;
  }

  .git-proof dl {
    grid-column: auto;
  }

  .git-branch-map article,
  .git-sync-steps li {
    grid-template-columns: 1fr;
    gap: 0.3rem;
  }

  .git-sync-steps li::before {
    margin-bottom: 0.2rem;
  }

  .git-reference-table th:first-child,
  .git-reference-table th:last-child {
    width: auto;
  }
}