/* ============================================================
   Bench: constitutional governance for Claude Code
   Judicial ledger design system
   ============================================================ */

/* ---- self-hosted fonts (latin subsets) ---- */

@font-face {
  font-family: "Libre Caslon Display";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/libre-caslon-display-400.woff2") format("woff2");
}
@font-face {
  font-family: "Spectral";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/spectral-400.woff2") format("woff2");
}
@font-face {
  font-family: "Spectral";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/spectral-400-italic.woff2") format("woff2");
}
@font-face {
  font-family: "Spectral";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../assets/fonts/spectral-500.woff2") format("woff2");
}
@font-face {
  font-family: "Spectral";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../assets/fonts/spectral-600.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/ibm-plex-mono-400.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../assets/fonts/ibm-plex-mono-500.woff2") format("woff2");
}

:root {
  --paper: #f1ebdd;
  --paper-deep: #e9e0cb;
  --paper-card: #f6f1e6;
  --ink: #221e15;
  --ink-soft: #5a5240;
  --ink-faint: #8a806a;
  --veto: #8a2727;
  --veto-deep: #6e1d1d;
  --pass: #29553b;
  --brass: #8f7439;
  --rule: #cfc4a8;
  --rule-strong: #a99d7d;
  --margin-red: #c98d82;
  --ledger-line: #c5bda4;

  --font-display: "Libre Caslon Display", "Georgia", serif;
  --font-body: "Spectral", "Georgia", serif;
  --font-mono: "IBM Plex Mono", "Consolas", monospace;

  --measure: 62ch;
  --gutter: clamp(1.25rem, 4vw, 3rem);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

section[id] { scroll-margin-top: 3.6rem; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  /* faint paper grain via layered gradients, no images */
  background-image:
    radial-gradient(ellipse at 20% 0%, rgba(143, 116, 57, 0.05), transparent 55%),
    radial-gradient(ellipse at 90% 100%, rgba(138, 39, 39, 0.035), transparent 50%);
}

.mono { font-family: var(--font-mono); font-size: 0.92em; }

a { color: var(--ink); text-decoration-color: var(--brass); text-underline-offset: 3px; }
a:hover { color: var(--veto); text-decoration-color: var(--veto); }

:focus-visible {
  outline: 2px solid var(--veto);
  outline-offset: 3px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.01em;
}

h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); margin-bottom: 1.25rem; }
h3 { font-size: 1.35rem; margin-bottom: 0.5rem; }

.section-inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: clamp(4rem, 9vw, 7.5rem) var(--gutter);
}
.section-inner.narrow { max-width: 52rem; }

.lede {
  font-size: 1.2rem;
  line-height: 1.6;
  max-width: var(--measure);
  margin-bottom: 1.25rem;
}
.narrow-lede { max-width: var(--measure); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--veto);
  margin-bottom: 1.1rem;
}
.eyebrow::after {
  content: "";
  display: inline-block;
  vertical-align: middle;
  width: 3.5rem;
  height: 1px;
  margin-left: 0.9rem;
  background: var(--rule-strong);
}

p + p { margin-top: 1rem; }
section p { max-width: var(--measure); }

/* ============ header ============ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}

.header-inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0.85rem var(--gutter);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.wordmark {
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: 0.02em;
  text-decoration: none;
}
.wordmark::after {
  content: "\00a7";
  color: var(--brass);
  font-size: 0.8em;
  margin-left: 0.35rem;
}

.site-nav {
  display: flex;
  gap: clamp(0.8rem, 2vw, 1.6rem);
  flex-wrap: wrap;
}
.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--ink-soft);
}
.site-nav a:hover { color: var(--veto); }
.site-nav .nav-gh {
  color: var(--ink);
  border-bottom: 1px solid var(--brass);
}

/* ============ hero ============ */

.hero { border-bottom: 1px solid var(--rule); overflow: hidden; }

.hero-inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: clamp(3.5rem, 8vw, 6.5rem) var(--gutter) clamp(4rem, 9vw, 7rem);
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(2.5rem, 6vw, 5.5rem);
  align-items: center;
}

.caption-line {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 1.6rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.caption-rule {
  display: inline-block;
  width: 2.4rem;
  height: 1px;
  background: var(--veto);
  flex: none;
}

.hero h1 {
  font-size: clamp(2.7rem, 6vw, 4.6rem);
  margin-bottom: 1.5rem;
}

.hero-sub {
  font-size: 1.16rem;
  max-width: 36rem;
  margin-bottom: 1.1rem;
}

.hero-thesis {
  font-style: italic;
  font-size: 1.16rem;
  color: var(--veto-deep);
  margin-bottom: 2rem;
}

.hero-ctas { display: flex; gap: 0.9rem; flex-wrap: wrap; margin-bottom: 1.6rem; }

.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  padding: 0.8rem 1.4rem;
  text-decoration: none;
  border: 1px solid var(--ink);
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--veto-deep); border-color: var(--veto-deep); color: var(--paper); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { border-color: var(--veto); color: var(--veto); }

.hero-meta { font-size: 0.9rem; color: var(--ink-soft); }

/* ---- the docket (signature element) ---- */

.docket {
  background:
    repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent 27px,
      color-mix(in srgb, var(--ledger-line) 46%, transparent) 27px,
      color-mix(in srgb, var(--ledger-line) 46%, transparent) 28px
    ),
    var(--paper-card);
  border: 1px solid var(--rule-strong);
  outline: 1px solid var(--rule);
  outline-offset: 4px;
  box-shadow: 0 18px 40px -22px rgba(34, 30, 21, 0.45);
  padding: 1.4rem 1.4rem 1.2rem 2.4rem;
  position: relative;
  min-width: 0;
}
/* red ledger margin rule */
.docket::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 1.55rem;
  width: 1px;
  background: var(--margin-red);
}

.docket-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--rule-strong);
  padding-bottom: 0.55rem;
  margin-bottom: 0.9rem;
}
.docket-no { font-size: 0.72rem; letter-spacing: 0.18em; color: var(--ink-soft); }
.docket-status {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  color: var(--brass);
  transition: color 0.3s ease;
}
.docket-status.is-veto { color: var(--veto); }
.docket-status.is-pass { color: var(--pass); }

.diff-card {
  border: 1px solid var(--rule-strong);
  background: color-mix(in srgb, var(--paper) 55%, #fff 10%);
  padding: 0.8rem 0.95rem;
  margin-bottom: 1rem;
  overflow-x: auto;
}
.diff-card pre {
  font-size: 0.78rem;
  line-height: 1.55;
  white-space: pre;
}
.diff-card .del { color: var(--veto); }

.stages { list-style: none; margin-bottom: 0.4rem; }
.stage {
  display: grid;
  grid-template-columns: 6.2rem 5.2rem 1fr;
  gap: 0.6rem;
  align-items: baseline;
  padding: 0.42rem 0;
  border-bottom: 1px dotted var(--rule-strong);
  opacity: 0.38;
  transition: opacity 0.35s ease;
}
.stage.is-active, .stage.is-done { opacity: 1; }
.stage-role {
  font-family: var(--font-display);
  font-size: 0.95rem;
}
.stage-model { font-size: 0.68rem; color: var(--ink-faint); letter-spacing: 0.05em; }
.stage-line {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-soft);
  min-height: 1.2em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.stage.is-active .stage-line::after {
  content: "\258f";
  animation: caret 0.9s steps(1) infinite;
  color: var(--brass);
}
@keyframes caret { 50% { opacity: 0; } }

.stamp-zone {
  min-height: 4.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.4rem 0;
}
.stamp {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.5rem;
  letter-spacing: 0.3em;
  text-indent: 0.3em;
  padding: 0.45rem 1.1rem;
  border: 3px double currentColor;
  border-radius: 3px;
  transform: rotate(-6deg);
  opacity: 0;
  visibility: hidden;
}
.stamp.is-veto { color: var(--veto); }
.stamp.is-pass { color: var(--pass); }
.stamp.is-in {
  visibility: visible;
  animation: stamp-in 0.42s cubic-bezier(0.2, 1.4, 0.4, 1) forwards;
}
@keyframes stamp-in {
  0%   { opacity: 0; transform: rotate(-14deg) scale(2.1); }
  55%  { opacity: 1; transform: rotate(-5deg) scale(0.94); }
  75%  { transform: rotate(-6.5deg) scale(1.03); }
  100% { opacity: 0.92; transform: rotate(-6deg) scale(1); }
}

.docket-chain {
  border-top: 1px solid var(--rule-strong);
  padding-top: 0.7rem;
  font-size: 0.72rem;
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
}
.chain-arrow { color: var(--brass); }
.chain-link { letter-spacing: 0.04em; }
.chain-new {
  min-width: 6ch;
  border-bottom: 1px solid var(--rule-strong);
  color: var(--ink);
  transition: color 0.3s ease;
}

/* ============ problem ============ */

.problem { border-bottom: 1px solid var(--rule); }

/* ============ procedure ============ */

.how { border-bottom: 1px solid var(--rule); background: var(--paper-deep); }

.stages-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule-strong);
  border: 1px solid var(--rule-strong);
  margin: 2.6rem 0 2rem;
}
.stage-card {
  background: var(--paper-deep);
  padding: 1.6rem 1.4rem 1.8rem;
}
.stage-num {
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--veto);
  margin-bottom: 1rem;
}
.stage-card h3 { font-size: 1.55rem; }
.stage-actor {
  font-style: italic;
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-bottom: 0.75rem;
}
.stage-card p:last-child { font-size: 0.96rem; }

.how-note {
  max-width: var(--measure);
  padding: 1.1rem 1.3rem;
  border-left: 3px solid var(--veto);
  background: color-mix(in srgb, var(--veto) 6%, transparent);
  font-size: 0.98rem;
}

/* ============ constitution ============ */

.constitution { border-bottom: 1px solid var(--rule); }

.articles {
  list-style: none;
  margin: 2.6rem 0 2.4rem;
  border-top: 1px solid var(--rule-strong);
}
.article {
  border-bottom: 1px solid var(--rule-strong);
  padding: 1.4rem 0 1.5rem;
}
.article-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}
.article-id {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--brass);
  min-width: 4.2rem;
}
.article h3 { font-size: 1.45rem; margin-bottom: 0; }
.article p {
  margin-left: calc(4.2rem + 1rem);
  max-width: 58ch;
  font-size: 1rem;
  color: var(--ink-soft);
}

.sev {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 0.28rem 0.6rem;
  border: 1.5px solid currentColor;
  border-radius: 2px;
  transform: rotate(-2deg);
  margin-left: auto;
}
.sev-veto { color: var(--veto); }
.sev-warn { color: var(--brass); }

.layers-note {
  border: 1px solid var(--rule-strong);
  outline: 1px solid var(--rule);
  outline-offset: 4px;
  background: var(--paper-card);
  padding: 1.6rem 1.8rem;
  max-width: 46rem;
}
.layers-note h3 { font-size: 1.3rem; }
.layers-note p { font-size: 0.98rem; color: var(--ink-soft); }

/* ============ self-governance ============ */

.selfgov { border-bottom: 1px solid var(--rule); background: var(--paper-deep); }

.case-file {
  margin: 2.2rem 0 1.6rem;
  background:
    repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent 27px,
      color-mix(in srgb, var(--ledger-line) 46%, transparent) 27px,
      color-mix(in srgb, var(--ledger-line) 46%, transparent) 28px
    ),
    var(--paper-card);
  border: 1px solid var(--rule-strong);
  padding: 1.4rem 1.6rem 1.4rem 2.6rem;
  position: relative;
  box-shadow: 0 14px 30px -20px rgba(34, 30, 21, 0.4);
}
.case-file::before {
  content: "";
  position: absolute;
  top: 0; bottom: 0; left: 1.7rem;
  width: 1px;
  background: var(--margin-red);
}
.case-label {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--veto);
  margin-bottom: 0.7rem;
}
.case-file p:last-child { font-size: 1rem; }

/* ============ command blocks ============ */

.cmd {
  position: relative;
  border: 1px solid var(--rule-strong);
  background: var(--ink);
  color: var(--paper);
  margin-top: 1.1rem;
  display: flex;
  align-items: stretch;
}
.cmd pre {
  padding: 0.9rem 1.1rem;
  font-size: 0.82rem;
  line-height: 1.6;
  overflow-x: auto;
  flex: 1;
}
.copy-btn {
  border: none;
  border-left: 1px solid rgba(241, 235, 221, 0.2);
  background: transparent;
  color: var(--ink-faint);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0 1rem;
  cursor: pointer;
  flex: none;
}
.copy-btn:hover { color: var(--paper); background: rgba(241, 235, 221, 0.08); }
.copy-btn.is-copied { color: #9fc4a8; }

/* ============ ledger ============ */

.ledger { border-bottom: 1px solid var(--rule); }

.chainviz {
  margin: 2.6rem 0 2.8rem;
  position: relative;
}
#chain-svg { width: 100%; height: 34px; display: block; }
#chain-path {
  stroke: var(--rule-strong);
  stroke-width: 1.5;
  stroke-dasharray: 6 5;
}
.chainviz.is-visible #chain-path {
  animation: chain-draw 1.6s ease forwards;
}
@keyframes chain-draw {
  from { stroke-dashoffset: 900; }
  to   { stroke-dashoffset: 0; }
}

.chain-entries {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-top: -1.2rem;
}
.entry {
  background: var(--paper-card);
  border: 1px solid var(--rule-strong);
  padding: 0.7rem 0.85rem;
  font-size: 0.74rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  letter-spacing: 0.04em;
}
html.js .entry {
  transform: translateY(8px);
  opacity: 0;
  transition: opacity 0.5s ease, transform 0.5s ease;
}
html.js .chainviz.is-visible .entry { opacity: 1; transform: none; }
.chainviz.is-visible .entry:nth-child(2) { transition-delay: 0.25s; }
.chainviz.is-visible .entry:nth-child(3) { transition-delay: 0.5s; }
.chainviz.is-visible .entry:nth-child(4) { transition-delay: 0.75s; }
.entry em {
  font-style: normal;
  font-weight: 500;
  letter-spacing: 0.2em;
}
.entry[data-verdict="pass"] em { color: var(--pass); }
.entry[data-verdict="veto"] em { color: var(--veto); }
.entry i { font-style: normal; color: var(--ink-faint); }

.chainviz-note {
  margin-top: 1.2rem;
  font-size: 0.88rem;
  color: var(--ink-soft);
  max-width: var(--measure);
}

.ledger-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.5rem, 4vw, 3.5rem);
  margin-bottom: 3rem;
}
.ledger-cols p { font-size: 0.98rem; }

.fault-list {
  list-style: none;
  margin-top: 0.9rem;
}
.fault-list li {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--veto);
  padding: 0.35rem 0;
  border-bottom: 1px dotted var(--rule-strong);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.fault-list li::before {
  content: "\2715";
  font-size: 0.7em;
}

.retirement {
  border: 1px solid var(--rule-strong);
  outline: 1px solid var(--rule);
  outline-offset: 4px;
  background: var(--paper-card);
  padding: 1.8rem 2rem;
  max-width: 52rem;
}
.retirement h3 { font-size: 1.5rem; margin-bottom: 0.8rem; }
.retirement p { font-size: 1rem; }

/* ============ boundaries ============ */

.boundaries { border-bottom: 1px solid var(--rule); background: var(--ink); color: var(--paper); }
.boundaries .eyebrow { color: var(--margin-red); }
.boundaries .eyebrow::after { background: rgba(241, 235, 221, 0.3); }
.boundaries a { color: var(--paper); }
.boundaries .lede, .boundaries dd { color: #cfc8b4; }

.boundary-list { margin: 2.4rem 0; }
.boundary {
  padding: 1.4rem 0;
  border-top: 1px solid rgba(241, 235, 221, 0.18);
  display: grid;
  grid-template-columns: minmax(9rem, 16rem) minmax(0, 1fr);
  gap: 1.5rem;
}
.boundary:last-child { border-bottom: 1px solid rgba(241, 235, 221, 0.18); }
.boundary dt {
  font-family: var(--font-display);
  font-size: 1.3rem;
  line-height: 1.25;
}
.boundary dd { font-size: 0.98rem; }
.boundaries .mono { color: var(--paper); opacity: 0.85; }

.boundary-plain {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.4vw, 1.7rem);
  line-height: 1.4;
  max-width: 44rem;
  color: var(--paper);
}

/* ============ quick start ============ */

.start { border-bottom: 1px solid var(--rule); }

.steps {
  list-style: none;
  counter-reset: step;
  margin-top: 2.4rem;
}
.step {
  counter-increment: step;
  position: relative;
  padding: 0 0 2.6rem 3.6rem;
  border-left: 1px solid var(--rule-strong);
  margin-left: 1rem;
}
.step:last-child { padding-bottom: 0.5rem; }
.step::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: -1.05rem;
  top: -0.1rem;
  width: 2.1rem;
  height: 2.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--veto);
}
.step h3 { font-size: 1.35rem; }
.step > p { margin-top: 0.4rem; font-size: 0.98rem; }
.panel-note { font-size: 0.9rem; color: var(--ink-soft); margin-top: 0.7rem; }

.tabs {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-top: 1.1rem;
}
.tab {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  padding: 0.55rem 0.9rem;
  background: transparent;
  border: 1px solid var(--rule-strong);
  border-bottom-color: var(--rule-strong);
  color: var(--ink-soft);
  cursor: pointer;
}
.tab:hover { color: var(--veto); border-color: var(--veto); }
.tab.is-active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.tab-panel { display: none; }
.tab-panel.is-active { display: block; }

/* ============ models ============ */

.models-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2.2rem 0 1.4rem;
}
.models-table th {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-align: left;
  color: var(--ink-soft);
  border-bottom: 2px solid var(--ink);
  padding: 0.6rem 1rem 0.6rem 0;
}
.models-table td {
  border-bottom: 1px solid var(--rule-strong);
  padding: 0.75rem 1rem 0.75rem 0;
  font-size: 0.98rem;
}
.models-table td:first-child { font-family: var(--font-display); font-size: 1.1rem; }
.models-note { font-size: 0.9rem; color: var(--ink-soft); }

/* ============ footer ============ */

.site-footer { background: var(--paper-deep); border-top: 1px solid var(--rule); }
.footer-inner {
  padding-top: 3.5rem;
  padding-bottom: 3.5rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 2rem;
}
.footer-wordmark {
  font-family: var(--font-display);
  font-size: 1.6rem;
  margin-bottom: 0.3rem;
}
.footer-links { display: flex; flex-direction: column; gap: 0.5rem; align-items: flex-start; }
.footer-links a { font-size: 0.92rem; }
.footer-legal {
  grid-column: 1 / -1;
  border-top: 1px solid var(--rule-strong);
  padding-top: 1.4rem;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

/* ============ reveal animation ============ */

/* hidden states only apply when JS is running (html.js), so the page
   stays fully readable if scripts never load */
html.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
html.js .reveal.is-visible { opacity: 1; transform: none; }
html.js .reveal:nth-child(2) { transition-delay: 0.08s; }
html.js .reveal:nth-child(3) { transition-delay: 0.16s; }
html.js .reveal:nth-child(4) { transition-delay: 0.24s; }

/* ============ responsive ============ */

@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .docket { max-width: 34rem; }
  .stages-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chain-entries { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 1.4rem; }
  #chain-svg { display: none; }
  .chain-entries { margin-top: 0; }
  .ledger-cols { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .site-nav a:not(.nav-gh) { display: none; }
  .stages-grid { grid-template-columns: 1fr; }
  .boundary { grid-template-columns: 1fr; gap: 0.4rem; }
  .article p { margin-left: 0; }
  .article-head { gap: 0.6rem; }
  .sev { margin-left: 0; }
  .footer-inner { grid-template-columns: 1fr; }
  .step { padding-left: 2.6rem; }
  .stage { grid-template-columns: 5.4rem 1fr; }
  .stage-line { grid-column: 1 / -1; }
}

/* ============ reduced motion ============ */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js .reveal, html.js .entry { opacity: 1; transform: none; transition: none; }
  .stamp.is-in { animation: none; opacity: 0.92; }
  .chainviz.is-visible #chain-path { animation: none; }
  .stage { transition: none; }
  .stage.is-active .stage-line::after { animation: none; }
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}