/* ==========================================================================
   Bridlewise Governance Lab
   A standalone, illustrative policy console. Carbon ground, instrument rules,
   one live hue. No external assets, fonts, or network dependencies.
   ========================================================================== */

:root {
  --ground: #0b0d11;
  --panel: #15181d;
  --panel-deep: #101318;
  --line: #2b313a;
  --line-soft: #20252c;
  --ink: #e8ebef;
  --muted: #a6adb8;
  --muted-dim: #79818d;
  --beam: #8fd3ff;
  --warn: #d9a84e;
  --deny: #e07a6a;
  --ok: #5fc78e;

  --sans: "IBM Plex Sans Variable", "IBM Plex Sans", ui-sans-serif, system-ui,
    "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono Variable", "IBM Plex Mono", ui-monospace, "SF Mono",
    "Cascadia Code", "Liberation Mono", monospace;

  --max: 1400px;
  --pad: clamp(20px, 4vw, 48px);
  --section-y: clamp(56px, 7vw, 96px);
  --focus: 2px solid var(--beam);
}

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

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

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: rgba(143, 211, 255, 0.26);
  color: var(--ink);
}

a {
  color: inherit;
}

button {
  font: inherit;
  color: inherit;
}

code,
pre {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

:focus-visible {
  outline: var(--focus);
  outline-offset: 3px;
}

.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;
  top: 10px;
  left: 10px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--ground);
  font-family: var(--mono);
  font-size: 12px;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 0.16s ease;
}

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

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

.micro {
  margin: 0;
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 560;
  line-height: 1.3;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ── Masthead ───────────────────────────────────────────────────────────── */

.masthead {
  border-bottom: 1px solid var(--line);
}

.masthead-inner {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px var(--pad);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
  text-decoration: none;
  color: var(--ink);
  justify-self: start;
}

.brand-mark {
  color: var(--beam);
  flex: none;
}

.brand-name {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand-slash {
  color: var(--muted-dim);
  font-family: var(--mono);
  font-size: 12px;
}

.brand-page {
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--muted);
  white-space: nowrap;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
}

.nav a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  font-size: 12px;
  letter-spacing: 0.015em;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease;
}

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

.badge {
  justify-self: end;
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 9px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1.3;
  white-space: nowrap;
}

.badge-dot {
  width: 5px;
  height: 5px;
  background: var(--warn);
  flex: none;
}

/* ── Hero ───────────────────────────────────────────────────────────────── */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.55fr);
  align-items: end;
  gap: clamp(40px, 6vw, 96px);
  padding-top: clamp(56px, 7vw, 92px);
  padding-bottom: clamp(48px, 6vw, 80px);
}

.eyebrow {
  margin: 0 0 22px;
  font-size: 11px;
  font-weight: 560;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.eyebrow span {
  color: var(--muted-dim);
  margin: 0 6px;
}

h1 {
  margin: 0;
  max-width: 12ch;
  font-size: clamp(2.9rem, 7vw, 6.4rem);
  font-weight: 500;
  line-height: 0.93;
  letter-spacing: -0.048em;
  text-wrap: balance;
  color: var(--ink);
}

.h1-dot {
  color: var(--beam);
}

.lede {
  max-width: 62ch;
  margin: 28px 0 0;
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--muted);
}

.posture-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.posture-list li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.posture-list li::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--beam);
  flex: none;
}

.readout {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 16px 0 18px;
  min-width: 0;
}

.readout-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}

.readout-tag {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-dim);
}

.readout-list {
  margin: 16px 0 0;
  padding: 0;
}

.readout-list div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 8px 0;
  border-top: 1px solid var(--line-soft);
}

.readout-list dt {
  font-size: 11px;
  color: var(--muted);
}

.readout-list dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink);
  text-align: right;
  overflow-wrap: anywhere;
}

.readout-list .readout-false {
  color: var(--warn);
}

.readout-note {
  margin: 14px 0 0;
  font-size: 11px;
  line-height: 1.5;
  color: var(--muted);
}

/* ── Section frame ──────────────────────────────────────────────────────── */

.section {
  padding-top: var(--section-y);
  padding-bottom: var(--section-y);
  border-top: 1px solid var(--line);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  margin-bottom: clamp(30px, 4vw, 46px);
}

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

.kicker {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 14px;
  font-size: 10px;
  font-weight: 560;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.kicker-index {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--beam);
}

.section h2 {
  margin: 0;
  font-size: clamp(1.9rem, 3.4vw, 3rem);
  font-weight: 500;
  line-height: 1.03;
  letter-spacing: -0.035em;
  color: var(--ink);
  text-wrap: balance;
}

.section-intro {
  max-width: 68ch;
  margin: 16px 0 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--muted);
}

.text-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: none;
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: color 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.text-btn:hover {
  color: var(--ink);
  border-color: var(--muted-dim);
  background: rgba(232, 235, 239, 0.03);
}

.text-btn svg {
  flex: none;
}

/* ── Signal rail ────────────────────────────────────────────────────────── */

.signal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 11px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-bottom: 8px;
}

.signal-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.02em;
  color: var(--muted);
  white-space: nowrap;
}

.signal-item code {
  color: var(--muted-dim);
  font-size: 10px;
}

.signal-item[data-state="open"] code {
  color: var(--ok);
}

.signal-item[data-state="closed"] code {
  color: var(--deny);
}

.signal-item[data-state="partial"] code {
  color: var(--warn);
}

.signal-item[data-state="live"] code {
  color: var(--beam);
}

.signal-dot {
  width: 5px;
  height: 5px;
  background: var(--muted-dim);
  flex: none;
}

.signal-item[data-state="open"] .signal-dot {
  background: var(--ok);
}

.signal-item[data-state="closed"] .signal-dot {
  background: var(--deny);
}

.signal-item[data-state="partial"] .signal-dot {
  background: var(--warn);
}

.signal-item[data-state="live"] .signal-dot {
  background: var(--beam);
}

.signal-arrow {
  width: 20px;
  height: 1px;
  background: var(--line);
  position: relative;
  flex: none;
}

.signal-arrow::after {
  content: "";
  position: absolute;
  right: 0;
  top: -2px;
  width: 4px;
  height: 4px;
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  transform: rotate(45deg);
}

/* ── Console grid ───────────────────────────────────────────────────────── */

.console-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(380px, 0.88fr);
  gap: 0;
  border-top: 1px solid var(--line);
  margin-top: 8px;
}

.ledger {
  min-width: 0;
  padding-right: clamp(24px, 3.4vw, 48px);
}

.ledger-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 9.5px;
  font-weight: 560;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--muted);
}

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

.cap-row {
  display: grid;
  grid-template-columns: 3ch minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 21px 0 20px;
  border-bottom: 1px solid var(--line);
  min-width: 0;
}

.cap-index {
  padding-top: 2px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted-dim);
  text-align: right;
}

.cap-body {
  min-width: 0;
}

.cap-title {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 10px;
}

.cap-title h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 560;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.cap-scope {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.03em;
  color: var(--muted-dim);
}

.cap-consequence {
  max-width: 62ch;
  margin: 7px 0 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--muted);
}

.cap-code,
.cap-guard {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 8px;
  margin: 8px 0 0;
  font-family: var(--mono);
  font-size: 10.5px;
  line-height: 1.5;
  color: var(--muted);
}

.cap-code > span,
.cap-guard > span:first-child {
  font-family: var(--sans);
  font-size: 9px;
  font-weight: 560;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-dim);
}

.cap-code code {
  font-size: 10.5px;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.cap-row[data-decision="deny"] .cap-code code {
  color: var(--deny);
}

.cap-row[data-decision="allow"] .cap-code code {
  color: var(--muted);
}

.cap-guard > span:last-child {
  overflow-wrap: anywhere;
}

.cap-row[data-refused="true"] .switch-track {
  border-color: var(--warn);
}

.cap-refusal {
  margin: 10px 0 0;
  padding: 8px 10px;
  border-left: 2px solid var(--warn);
  background: rgba(217, 168, 78, 0.065);
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--ink);
}

.cap-refusal[hidden] {
  display: none;
}

.cap-refusal .refusal-code {
  display: inline-block;
  margin-right: 6px;
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--warn);
}

.cap-refusal .refusal-rule {
  display: inline-block;
  margin-left: 6px;
  font-family: var(--mono);
  font-size: 9.5px;
  color: var(--muted);
  white-space: nowrap;
}

.cap-side {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  min-width: 0;
}

.decision {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 7px;
  border: 1px solid currentColor;
  font-family: var(--mono);
  font-size: 9.5px;
  line-height: 1.2;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.decision::before {
  content: "";
  width: 4px;
  height: 4px;
  background: currentColor;
  flex: none;
}

.cap-row[data-decision="allow"] .decision {
  color: var(--ok);
}

.cap-row[data-decision="deny"] .decision {
  color: var(--deny);
}

.switch {
  width: 52px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  display: grid;
  place-items: center;
  cursor: pointer;
  border-radius: 1px;
}

.switch-track {
  position: relative;
  width: 44px;
  height: 24px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--panel-deep);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.45);
  transition: background 0.18s ease, border-color 0.18s ease;
}

.switch-track::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  right: 3px;
  bottom: 3px;
  border: 1px solid rgba(166, 173, 184, 0.13);
  border-radius: 1px;
  pointer-events: none;
  transition: border-color 0.18s ease;
}

.switch-thumb {
  position: absolute;
  top: 50%;
  left: 4px;
  width: 14px;
  height: 14px;
  border-radius: 1px;
  background: var(--muted-dim);
  transform: translateY(-50%);
  transition: transform 0.18s cubic-bezier(0.2, 0.8, 0.2, 1), background 0.18s ease;
  z-index: 1;
}

.switch[aria-checked="true"] .switch-track {
  background: rgba(95, 199, 142, 0.12);
  border-color: var(--ok);
}

.switch[aria-checked="true"] .switch-track::after {
  border-color: rgba(95, 199, 142, 0.3);
}

.switch[aria-checked="true"] .switch-thumb {
  background: var(--ok);
  transform: translate(18px, -50%);
}

.switch:hover .switch-track {
  border-color: var(--muted-dim);
}

.switch[aria-checked="true"]:hover .switch-track {
  border-color: var(--ok);
}

/* ── Receipt ────────────────────────────────────────────────────────────── */

.receipt {
  min-width: 0;
  padding-left: clamp(24px, 3.4vw, 40px);
  padding-top: 8px;
  border-left: 1px solid var(--line);
}

.receipt-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}

.receipt-head h3 {
  margin: 4px 0 0;
  font-size: 24px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 40px;
  padding: 0 11px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: color 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.copy:hover {
  color: var(--ink);
  border-color: var(--muted-dim);
  background: rgba(232, 235, 239, 0.03);
}

.copy[data-copied="true"] {
  color: var(--ok);
  border-color: var(--ok);
  background: rgba(95, 199, 142, 0.08);
}

.copy[data-error="true"] {
  color: var(--deny);
  border-color: var(--deny);
  background: rgba(224, 122, 106, 0.07);
}

.copy-icon {
  flex: none;
}

.receipt-live {
  min-height: 32px;
  margin: 16px 0 0;
  padding-left: 10px;
  border-left: 2px solid var(--beam);
  font-family: var(--mono);
  font-size: 10.5px;
  line-height: 1.5;
  color: var(--muted);
}

.receipt-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 18px 0 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stat {
  min-width: 0;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
}

.stat:nth-child(odd) {
  border-right: 1px solid var(--line-soft);
  padding-right: 12px;
}

.stat:nth-child(even) {
  padding-left: 12px;
}

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

.stat dt {
  font-size: 9px;
  font-weight: 560;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.stat dd {
  margin: 5px 0 0;
  font-family: var(--mono);
  font-size: 19px;
  line-height: 1.1;
  color: var(--ink);
}

.stat dd code {
  font-size: 10.5px;
  overflow-wrap: anywhere;
}

.stat-ready dd[data-state="allow"] {
  color: var(--ok);
}

.stat-ready dd[data-state="deny"] {
  color: var(--warn);
}

/* ── Receipt diff ───────────────────────────────────────────────────────── */

.diff {
  margin-top: 18px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 10px 0 12px;
}

.diff-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  font-size: 9px;
  font-weight: 560;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.diff-count {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--muted-dim);
}

.diff-body {
  margin-top: 8px;
}

.diff-empty {
  margin: 0;
  font-size: 11px;
  line-height: 1.5;
  color: var(--muted);
}

.diff-change {
  padding: 6px 0;
  border-top: 1px solid var(--line-soft);
}

.diff-change:first-child {
  padding-top: 2px;
  border-top: 0;
}

.diff-path {
  display: block;
  margin-bottom: 3px;
  font-family: var(--mono);
  font-size: 9.5px;
  line-height: 1.4;
  color: var(--beam);
  overflow-wrap: anywhere;
}

.diff-line {
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr);
  gap: 8px;
  padding: 1px 6px;
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1.55;
  color: var(--muted);
}

.diff-line .diff-sign {
  text-align: center;
  user-select: none;
}

.diff-line code {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  color: var(--ink);
}

.diff-line.diff-add {
  background: rgba(95, 199, 142, 0.07);
}

.diff-line.diff-add .diff-sign {
  color: var(--ok);
}

.diff-line.diff-remove {
  background: rgba(224, 122, 106, 0.07);
}

.diff-line.diff-remove .diff-sign {
  color: var(--deny);
}

.diff-line.diff-remove code {
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-color: rgba(224, 122, 106, 0.55);
}

.diff-more {
  margin: 6px 0 0;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
}

/* ── Receipt code ───────────────────────────────────────────────────────── */

.code-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
}

.code-hint {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.02em;
  color: var(--muted-dim);
}

.receipt-code-wrap {
  max-height: 460px;
  margin-top: 6px;
  padding: 10px 0;
  overflow: auto;
  background: var(--panel-deep);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  scrollbar-color: var(--line) transparent;
  scrollbar-width: thin;
}

.receipt-code-wrap:focus-visible {
  outline: var(--focus);
  outline-offset: 2px;
}

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

.receipt-code li {
  display: grid;
  grid-template-columns: 2.2ch minmax(0, 1fr);
  gap: 10px;
  padding: 1px 12px;
  border-left: 2px solid transparent;
  font-family: var(--mono);
  font-size: 10.5px;
  line-height: 1.7;
  color: var(--ink);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.receipt-code .line-no {
  color: var(--muted-dim);
  text-align: right;
  user-select: none;
}

.receipt-code code {
  display: block;
  min-width: 0;
  font-family: inherit;
  font-size: inherit;
  white-space: pre;
  color: var(--ink);
}

.receipt-code li.is-changed {
  background: rgba(143, 211, 255, 0.075);
  border-left-color: var(--beam);
  animation: receipt-flash 0.7s ease-out;
}

@keyframes receipt-flash {
  0% {
    background: rgba(143, 211, 255, 0.2);
  }
  100% {
    background: rgba(143, 211, 255, 0.075);
  }
}

.tok-key {
  color: var(--beam);
}

.tok-string {
  color: var(--ink);
}

.tok-number {
  color: var(--warn);
}

.tok-bool {
  color: var(--warn);
}

.tok-null {
  color: var(--muted);
}

.tok-punct {
  color: var(--muted-dim);
}

.noscript-note {
  margin: 0 12px;
  font-size: 11px;
  color: var(--warn);
}

.receipt-foot {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}

.receipt-foot > p {
  margin: 0;
}

.receipt-foot > p:first-child {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
}

.receipt-foot code {
  overflow-wrap: anywhere;
}

.receipt-caveat {
  padding-left: 10px;
  border-left: 1px solid var(--line);
  font-size: 11px;
  line-height: 1.55;
  color: var(--muted);
}

.receipt-caveat strong {
  color: var(--ink);
  font-weight: 560;
}

.receipt-caveat code {
  font-size: 10px;
  color: var(--ink);
}

/* ── Actions ────────────────────────────────────────────────────────────── */

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

.action {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-height: 146px;
  padding: 18px;
  border: 0;
  background: var(--ground);
  text-align: left;
  cursor: pointer;
  transition: background 0.16s ease;
}

.action:hover {
  background: rgba(232, 235, 239, 0.035);
}

.action:active {
  background: rgba(232, 235, 239, 0.07);
}

.action:focus-visible {
  outline: var(--focus);
  outline-offset: -3px;
}

.action-index {
  position: absolute;
  top: 14px;
  right: 16px;
  font-family: var(--mono);
  font-size: 9px;
  color: var(--muted-dim);
}

.action-code {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.action-desc {
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.45;
  color: var(--muted);
}

.action-gate {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: auto;
  padding-top: 18px;
  font-family: var(--mono);
  font-size: 9.5px;
  line-height: 1.4;
  color: var(--muted);
}

.gate-dot {
  width: 5px;
  height: 5px;
  background: var(--muted-dim);
  flex: none;
}

.action[data-gate-state="open"] .gate-dot {
  background: var(--ok);
}

.action[data-gate-state="closed"] .gate-dot {
  background: var(--deny);
}

.action[data-gate-state="human"] .gate-dot {
  background: var(--warn);
}

.action-note {
  margin: 12px 0 0;
  font-size: 11px;
  line-height: 1.5;
  color: var(--muted);
}

.feedback-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: 0;
  margin-top: 34px;
  border-top: 1px solid var(--line);
}

.outcome {
  position: relative;
  min-width: 0;
  padding: 22px 36px 4px 0;
}

.outcome::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 64px;
  height: 2px;
  background: var(--line);
}

.outcome[data-state="allow"]::before {
  background: var(--ok);
}

.outcome[data-state="deny"]::before {
  background: var(--deny);
}

.outcome-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
}

.outcome-target {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  overflow-wrap: anywhere;
  text-align: right;
}

.outcome-main {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin-top: 18px;
}

.outcome-decision {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(1.7rem, 3.2vw, 2.3rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--muted);
}

.outcome[data-state="allow"] .outcome-decision {
  color: var(--ok);
}

.outcome[data-state="deny"] .outcome-decision {
  color: var(--deny);
}

.outcome-code {
  max-width: 100%;
  padding: 4px 7px;
  border: 1px solid var(--line);
  font-size: 10.5px;
  line-height: 1.4;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.outcome[data-state="allow"] .outcome-code {
  color: var(--ok);
  border-color: rgba(95, 199, 142, 0.4);
}

.outcome[data-state="deny"] .outcome-code {
  color: var(--deny);
  border-color: rgba(224, 122, 106, 0.4);
}

.outcome-reason {
  max-width: 58ch;
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}

.outcome[data-state="allow"] .outcome-reason,
.outcome[data-state="deny"] .outcome-reason {
  color: var(--ink);
}

.outcome-meta {
  margin: 16px 0 0;
  font-family: var(--mono);
  font-size: 9.5px;
  line-height: 1.5;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.trace {
  min-width: 0;
  margin-top: 22px;
  padding-left: 30px;
  border-left: 1px solid var(--line);
}

.trace-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
}

.trace h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 560;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.trace-head .micro {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--muted);
}

.trace-note {
  margin: 6px 0 0;
  font-size: 10.5px;
  line-height: 1.5;
  color: var(--muted);
}

.beat-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.beat {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 8px 0;
  border-top: 1px solid var(--line-soft);
  min-width: 0;
}

.beat-meta {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--muted-dim);
}

.beat-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 8px;
  min-width: 0;
  font-family: var(--mono);
  font-size: 10.5px;
  line-height: 1.45;
}

.beat-event {
  color: var(--ink);
  overflow-wrap: anywhere;
}

.beat-decision {
  font-size: 9px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.beat-decision[data-decision="allow"] {
  color: var(--ok);
}

.beat-decision[data-decision="deny"] {
  color: var(--deny);
}

.beat-code {
  color: var(--muted);
  overflow-wrap: anywhere;
}

.beat-empty {
  padding: 12px 0;
  border-top: 1px solid var(--line-soft);
  font-size: 11px;
  line-height: 1.5;
  color: var(--muted);
}

/* ── Safety floor ───────────────────────────────────────────────────────── */

.floor-section {
  background: var(--panel);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.floor-inner {
  padding-top: var(--section-y);
  padding-bottom: var(--section-y);
}

.floor-status {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 12px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1.5;
  color: var(--muted);
}

.floor-status-dot {
  width: 6px;
  height: 6px;
  background: var(--ok);
  flex: none;
}

.floor-status[data-state="refused"] .floor-status-dot {
  background: var(--warn);
}

.floor-status-text {
  min-width: 0;
  overflow-wrap: anywhere;
}

.floor-status-tag {
  margin-left: auto;
  padding: 3px 6px;
  border: 1px solid var(--line);
  font-family: var(--sans);
  font-size: 8.5px;
  font-weight: 560;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.floor-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

/* At 2–3 columns the five rules leave one grid cell empty. Fill it with the
   panel ground so the 1px ledger gaps do not become a solid line block. */
.floor-list::after {
  content: "";
  min-height: 100%;
  background: var(--panel);
}

@media (min-width: 1181px), (max-width: 640px) {
  .floor-list::after {
    display: none;
  }
}

.floor-rule {
  min-width: 0;
  padding: 18px 18px 22px;
  background: var(--panel);
  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.floor-rule.is-invoked {
  background: rgba(217, 168, 78, 0.07);
  box-shadow: inset 0 2px 0 var(--warn);
}

.floor-rule-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}

.floor-id {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.floor-lock {
  font-family: var(--sans);
  font-size: 8px;
  font-weight: 560;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-dim);
}

.floor-lock::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 4px;
  margin-right: 4px;
  border: 1px solid currentColor;
  vertical-align: 0.02em;
}

.floor-rule h3 {
  margin: 16px 0 8px;
  font-size: 14px;
  font-weight: 560;
  line-height: 1.3;
  letter-spacing: -0.005em;
  color: var(--ink);
}

.floor-rule p {
  margin: 0;
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--muted);
}

.floor-rule .floor-code {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 6px;
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 9.5px;
  line-height: 1.5;
  color: var(--muted);
}

.floor-code > span {
  font-family: var(--sans);
  font-size: 8.5px;
  font-weight: 560;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-dim);
}

.floor-code code {
  font-size: 9.5px;
  overflow-wrap: anywhere;
}

.floor-probe {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 24px;
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.floor-probe > p:last-child {
  max-width: 72ch;
  margin: 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

/* ── Scope ──────────────────────────────────────────────────────────────── */

.proof-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px solid var(--line);
}

.proof-col {
  min-width: 0;
  padding: 24px 36px 0 0;
}

.proof-col + .proof-col {
  padding-left: 36px;
  border-left: 1px solid var(--line);
}

.proof-col h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 560;
  line-height: 1.3;
  color: var(--ink);
}

.proof-col ul {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.proof-col li {
  position: relative;
  padding-left: 22px;
  margin: 12px 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.proof-col li::before {
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
}

.proof-proves li::before {
  content: "+";
  color: var(--beam);
}

.proof-not li::before {
  content: "−";
  color: var(--deny);
}

.proof-col code {
  font-size: 11.5px;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.closing {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  max-width: 46ch;
  margin: 48px 0 0;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: clamp(1.25rem, 2.2vw, 1.75rem);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -0.025em;
  color: var(--ink);
}

.closing-mark {
  flex: none;
  width: 7px;
  height: 7px;
  margin-top: 0.45em;
  background: var(--beam);
}

/* ── Footer ─────────────────────────────────────────────────────────────── */

.footer {
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  padding-top: 26px;
  padding-bottom: 46px;
}

.footer-brand {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink);
}

.footer-brand span {
  color: var(--muted-dim);
}

.footer-copy {
  margin: 6px 0 0;
  font-size: 11px;
  line-height: 1.5;
  color: var(--muted);
}

.footer-meta {
  text-align: right;
}

.footer-meta p {
  margin: 0 0 8px;
  font-size: 10.5px;
  line-height: 1.5;
  color: var(--muted);
}

.footer-meta a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.footer-meta a:hover {
  color: var(--ink);
  border-bottom-color: var(--muted);
}

/* ── Responsive ─────────────────────────────────────────────────────────── */

@media (max-width: 1180px) {
  .floor-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  .masthead-inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .nav {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: flex-start;
    border-top: 1px solid var(--line-soft);
    padding-top: 8px;
  }

  .badge {
    grid-column: 2;
    grid-row: 1;
  }

  .brand {
    grid-column: 1;
    grid-row: 1;
  }

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

  .ledger {
    padding-right: 0;
  }

  .receipt {
    margin-top: 34px;
    padding-left: 0;
    padding-top: 30px;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .readout {
    max-width: 620px;
  }

  .readout-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .readout-list div {
    padding-right: 16px;
  }

  .readout-list div:nth-child(even) {
    padding-left: 16px;
    border-left: 1px solid var(--line-soft);
    padding-right: 0;
  }

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

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

  .outcome {
    padding-right: 0;
  }

  .trace {
    margin-top: 26px;
    padding: 22px 0 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

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

  .proof-col {
    padding-right: 0;
  }

  .proof-col + .proof-col {
    margin-top: 28px;
    padding: 24px 0 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 760px) {
  .floor-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .signal-arrow {
    display: none;
  }

  .signal {
    gap: 7px 18px;
  }

  .section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }

  .text-btn {
    align-self: flex-start;
  }
}

@media (max-width: 640px) {
  .masthead-inner {
    padding-top: 14px;
    padding-bottom: 12px;
    gap: 10px 14px;
  }

  .brand {
    flex-wrap: wrap;
    gap: 6px;
  }

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

  .badge {
    justify-self: start;
    white-space: normal;
    font-size: 9px;
  }

  .nav {
    gap: 18px;
  }

  .nav a {
    min-height: 44px;
  }

  .hero {
    padding-top: 48px;
    padding-bottom: 52px;
    gap: 32px;
  }

  h1 {
    font-size: clamp(2.7rem, 12.4vw, 3.6rem);
    max-width: 11ch;
  }

  .lede {
    margin-top: 22px;
    font-size: 15px;
  }

  .readout-list {
    grid-template-columns: 1fr;
  }

  .readout-list div:nth-child(even) {
    padding-left: 0;
    border-left: 0;
  }

  .readout-list div:nth-child(n + 2) {
    border-top: 1px solid var(--line-soft);
  }

  .section {
    padding-top: 52px;
    padding-bottom: 52px;
  }

  .section h2 {
    font-size: clamp(1.8rem, 9vw, 2.3rem);
  }

  .section-intro {
    font-size: 13.5px;
  }

  .cap-row {
    grid-template-columns: 2.4ch minmax(0, 1fr) auto;
    gap: 10px;
    padding: 18px 0;
  }

  .cap-index {
    font-size: 9px;
  }

  .cap-title h3 {
    font-size: 15px;
  }

  .cap-consequence {
    font-size: 12.5px;
  }

  .cap-code,
  .cap-guard {
    font-size: 10px;
  }

  .cap-side {
    gap: 8px;
  }

  .decision {
    font-size: 9px;
  }

  .switch {
    width: 48px;
    height: 44px;
  }

  .receipt {
    margin-top: 28px;
    padding-top: 24px;
  }

  .receipt-head {
    flex-wrap: wrap;
  }

  .copy {
    min-height: 44px;
  }

  .receipt-code-wrap {
    max-height: 380px;
  }

  .receipt-code li {
    font-size: 10px;
    grid-template-columns: 2.2ch minmax(0, 1fr);
    gap: 8px;
    padding-left: 8px;
    padding-right: 8px;
  }

  .receipt-code code {
    white-space: pre-wrap;
    overflow-wrap: anywhere;
  }

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

  .action {
    min-height: 132px;
    padding: 16px;
  }

  .action-code {
    font-size: 14px;
  }

  .outcome {
    padding-top: 20px;
  }

  .outcome-top {
    flex-direction: column;
    gap: 6px;
  }

  .outcome-target {
    text-align: left;
  }

  .outcome-main {
    margin-top: 14px;
  }

  .outcome-decision {
    font-size: 1.65rem;
  }

  .floor-list {
    grid-template-columns: 1fr;
  }

  .floor-rule {
    padding: 16px 16px 20px;
  }

  .floor-rule h3 {
    margin-top: 12px;
  }

  .floor-status {
    font-size: 9.5px;
  }

  .floor-status-tag {
    margin-left: 0;
  }

  .floor-probe {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .proof-col {
    padding-top: 20px;
  }

  .closing {
    margin-top: 36px;
    padding-top: 20px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 20px;
    padding-bottom: 40px;
  }

  .footer-meta {
    text-align: left;
  }

  .footer-meta a {
    min-height: 44px;
  }
}

@media (max-width: 380px) {
  .cap-row {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .cap-index {
    display: none;
  }

  .cap-side {
    gap: 6px;
  }

  .decision {
    padding: 3px 5px;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}