/* ═══════════════════════════════════════════════════════════════
   Atlas — landing page
   Palette and type are inherited from the Atlas product surface:
   #0c1626 is the theme-invariant QMS sidebar, --ink/--accent/--ok
   are the product's own --qms-* tokens.
   ═══════════════════════════════════════════════════════════════ */

:root {
  --navy:         #0c1626;
  --navy-2:       #142235;
  --navy-3:       #1d3049;

  --paper:        #f6f8fa;
  --paper-2:      #eef2f6;
  --white:        #ffffff;

  --border:       #dce1e8;
  --border-strong:#c4cdd8;
  --border-dark:  #24374f;

  --ink:          #0e1a2b;
  --ink-2:        #4d5c6e;
  --ink-3:        #8593a3;

  --on-navy:      #eaeef2;
  --on-navy-2:    #97a8bd;
  --on-navy-3:    #62778f;

  --accent:       #1a56db;
  --accent-ink:   #123a97;
  --accent-lift:  #4d84f5;
  --accent-soft:  #e7effd;

  --ok:           #137a4b;
  --ok-soft:      #e2f3e9;
  --warn:         #8a5d0f;
  --warn-soft:    #fbeecf;
  --info:         #5b3fd4;
  --info-soft:    #ece7fb;

  --display: "Archivo", system-ui, sans-serif;
  --body:    "Public Sans", system-ui, sans-serif;
  --mono:    "IBM Plex Mono", ui-monospace, monospace;

  --strip-h: 52px;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --measure: 1180px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--strip-h) + 1rem); }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { font-family: var(--display); font-weight: 700; margin: 0; letter-spacing: -0.02em; }
p { margin: 0; }
ul, ol, dl, dd { margin: 0; padding: 0; }
li { list-style: none; }

.mono-no {
  font-family: var(--mono);
  font-size: 0.92em;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--accent-ink);
  white-space: nowrap;
}

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

:focus-visible {
  outline: 2px solid var(--accent-lift);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ── Document control strip ───────────────────────────────── */

.control-strip {
  position: sticky; top: 0; z-index: 60;
  height: var(--strip-h);
  background: var(--navy);
  border-bottom: 1px solid var(--border-dark);
}

.strip-inner {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 100%;
  display: flex; align-items: center; gap: 0.85rem;
}

.wordmark {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--display); font-weight: 800; font-size: 1.05rem;
  letter-spacing: -0.03em;
  color: var(--white); text-decoration: none;
}

/* The mark: three stacked strata — a controlled document's revision stack */
.wordmark-mark {
  width: 15px; height: 15px; flex: none;
  background:
    linear-gradient(var(--accent-lift) 0 0) 0 0 / 100% 3px no-repeat,
    linear-gradient(var(--on-navy-2) 0 0) 0 6px / 100% 3px no-repeat,
    linear-gradient(var(--on-navy-3) 0 0) 0 12px / 100% 3px no-repeat;
}

.strip-meta {
  font-family: var(--mono); font-size: 0.7rem; font-weight: 500;
  color: var(--on-navy-3); letter-spacing: 0.02em;
}
.strip-meta--rev { border-left: 1px solid var(--border-dark); padding-left: 0.85rem; }

.strip-stamp {
  font-family: var(--mono); font-size: 0.62rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--accent-lift);
  border: 1px solid #2c4568;
  padding: 0.2rem 0.45rem;
  border-radius: 2px;
}

.strip-nav { margin-left: auto; display: flex; align-items: center; gap: 1.4rem; }
.strip-nav a {
  font-size: 0.83rem; font-weight: 500;
  color: var(--on-navy-2); text-decoration: none;
}
.strip-nav a:hover { color: var(--white); }

.strip-cta {
  background: var(--accent); color: var(--white) !important;
  padding: 0.42rem 0.9rem; border-radius: 3px;
  font-weight: 600 !important;
}
.strip-cta:hover { background: var(--accent-lift); }

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

.hero {
  background: var(--navy);
  color: var(--on-navy);
  padding: clamp(3.5rem, 7vw, 6.5rem) 0 clamp(4rem, 8vw, 7rem);
  /* faint ruled ground — a controlled document's grid, not a gradient */
  background-image: repeating-linear-gradient(
    to bottom, transparent 0 39px, rgba(255,255,255,0.028) 39px 40px);
  overflow: hidden;
}

.hero-grid {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: start;
}

.eyebrow {
  font-family: var(--mono); font-size: 0.7rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.16em;
  color: var(--accent-lift);
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2.3rem, 5.1vw, 3.9rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.035em;
  color: var(--white);
  margin-bottom: 1.75rem;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent-lift);
}

.lede {
  font-size: 1.06rem;
  line-height: 1.68;
  color: var(--on-navy-2);
  max-width: 34rem;
  margin-bottom: 1rem;
}
.lede--tight { color: var(--on-navy); font-weight: 500; margin-bottom: 2.2rem; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 2.75rem; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--body); font-size: 0.95rem; font-weight: 600;
  padding: 0.78rem 1.5rem;
  border-radius: 3px; border: 1px solid transparent;
  text-decoration: none; cursor: pointer;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.btn-primary { background: var(--accent); color: var(--white); }
.btn-primary:hover { background: var(--accent-lift); }
.btn-ghost { border-color: #2c4568; color: var(--on-navy); background: transparent; }
.btn-ghost:hover { border-color: var(--on-navy-3); background: rgba(255,255,255,0.04); }
.btn-block { width: 100%; }

.hero-facts {
  display: flex; flex-wrap: wrap; gap: 0 2.5rem;
  border-top: 1px solid var(--border-dark);
  padding-top: 1.4rem;
}
.hero-facts dt {
  font-family: var(--mono); font-size: 0.66rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--on-navy-3);
  margin-bottom: 0.25rem;
}
.hero-facts dd { font-size: 0.88rem; font-weight: 500; color: var(--on-navy); }

/* ── Signature element: the proposal card ─────────────────── */

.hero-artifact { position: relative; }

.proposal {
  background: var(--white);
  border-radius: 6px;
  border: 1px solid var(--border);
  box-shadow: 0 24px 60px -20px rgba(4, 12, 24, 0.55);
  overflow: hidden;
}

.proposal-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1.15rem;
  background: var(--paper-2);
  border-bottom: 1px solid var(--border);
}

.proposal-source {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--mono); font-size: 0.72rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.09em;
  color: var(--ink-2);
}

.pulse {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(26, 86, 219, 0.5);
  animation: pulse 2.4s ease-out infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(26,86,219,.5); }
  70%  { box-shadow: 0 0 0 7px rgba(26,86,219,0); }
  100% { box-shadow: 0 0 0 0 rgba(26,86,219,0); }
}

.proposal-time {
  font-family: var(--mono); font-size: 0.68rem;
  color: var(--ink-3);
}

.proposal-body { padding: 1.35rem 1.35rem 1.15rem; }

.proposal-kicker {
  font-family: var(--mono); font-size: 0.64rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.13em;
  color: var(--warn);
  background: var(--warn-soft);
  display: inline-block;
  padding: 0.2rem 0.5rem; border-radius: 2px;
  margin-bottom: 0.85rem;
}

.proposal-title {
  font-size: 1.12rem; font-weight: 700; line-height: 1.35;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-bottom: 1.1rem;
}

.proposal-evidence {
  border-top: 1px solid var(--border);
  margin-bottom: 1.1rem;
}
.proposal-evidence li {
  display: grid;
  grid-template-columns: 4.4rem auto;
  gap: 0.1rem 0.7rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
}
.ev-label {
  font-family: var(--mono); font-size: 0.63rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--ink-3);
  padding-top: 0.12rem;
}
.ev-value { font-size: 0.86rem; }
.ev-note {
  grid-column: 2;
  font-size: 0.8rem; color: var(--ink-2);
}

.proposal-action {
  font-size: 0.88rem; line-height: 1.55; color: var(--ink);
  background: var(--accent-soft);
  border-left: 2px solid var(--accent);
  padding: 0.7rem 0.85rem;
  border-radius: 0 3px 3px 0;
  margin-bottom: 1.05rem;
}
.proposal-action-label {
  display: block;
  font-family: var(--mono); font-size: 0.62rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.11em;
  color: var(--accent-ink);
  margin-bottom: 0.25rem;
}

.provenance {
  border: 1px dashed var(--border-strong);
  border-radius: 3px;
  padding: 0.7rem 0.85rem;
  background: var(--paper);
}
.provenance-head {
  font-family: var(--mono); font-size: 0.62rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.11em;
  color: var(--ink-3);
  margin-bottom: 0.5rem;
}
.provenance-rows {
  display: grid;
  grid-template-columns: 5.6rem auto;
  row-gap: 0.28rem; column-gap: 0.7rem;
  font-size: 0.76rem;
  color: var(--ink-2);
}
.provenance-rows > span:nth-child(odd) {
  font-family: var(--mono); font-size: 0.68rem;
  color: var(--ink-3);
  text-transform: uppercase; letter-spacing: 0.06em;
}
.provenance-rows .mono-no { font-size: 0.74rem; color: var(--ink-2); }

.proposal-foot {
  padding: 1rem 1.35rem 1.2rem;
  border-top: 1px solid var(--border);
  background: var(--paper-2);
}

.signature-slot { display: flex; gap: 0.6rem; }

.btn-sign {
  background: var(--ok); color: var(--white);
  padding: 0.62rem 1.15rem; font-size: 0.88rem;
  flex: 1;
}
.btn-sign:hover { background: #0f6a40; }

.btn-reject {
  background: transparent; color: var(--ink-2);
  border-color: var(--border-strong);
  padding: 0.62rem 1.1rem; font-size: 0.88rem;
}
.btn-reject:hover { border-color: var(--ink-3); color: var(--ink); }

.signed-line {
  display: flex; align-items: flex-start; gap: 0.65rem;
  animation: signIn .45s cubic-bezier(.2,.7,.3,1) both;
}
@keyframes signIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}
.signed-tick {
  width: 18px; height: 18px; flex: none; border-radius: 50%;
  background: var(--ok-soft);
  position: relative; margin-top: 2px;
}
.signed-tick::after {
  content: ""; position: absolute;
  left: 6px; top: 3px; width: 4px; height: 8px;
  border: solid var(--ok); border-width: 0 2px 2px 0;
  transform: rotate(43deg);
}
.signed-text { font-size: 0.85rem; color: var(--ink); line-height: 1.45; }
.signed-hash {
  display: block; font-size: 0.7rem; color: var(--ink-3);
  letter-spacing: 0;
}

.artifact-caption {
  margin-top: 1.1rem;
  font-size: 0.82rem; line-height: 1.6;
  color: var(--on-navy-3);
  max-width: 28rem;
}

/* ── Clause sections ──────────────────────────────────────── */

.clause { padding: clamp(3.5rem, 7vw, 6rem) 0; }
.clause--dark { background: var(--navy); color: var(--on-navy); }
.clause--paper { background: var(--paper-2); }

.clause-inner { max-width: var(--measure); margin: 0 auto; padding: 0 var(--gutter); }

.clause-head {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 0 1rem;
  margin-bottom: clamp(2.25rem, 4vw, 3.25rem);
}

/* Hanging clause number — the reader's own device */
.clause-no {
  font-family: var(--mono); font-size: 1.05rem; font-weight: 500;
  color: var(--accent);
  padding-top: 0.55rem;
}
.clause--dark .clause-no { color: var(--accent-lift); }

.clause-head h2 {
  font-size: clamp(1.75rem, 3.4vw, 2.5rem);
  font-weight: 700; line-height: 1.12; letter-spacing: -0.03em;
  margin-bottom: 0.9rem;
  max-width: 20ch;
}
.clause--dark .clause-head h2 { color: var(--white); }

.clause-lede {
  font-size: 1.02rem; line-height: 1.68;
  color: var(--ink-2);
  max-width: 56ch;
}
.clause--dark .clause-lede { color: var(--on-navy-2); }

/* ── 1. Problem ───────────────────────────────────────────── */

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
  gap: 0;
  border-top: 1px solid var(--border-strong);
}
.problem {
  padding: 1.75rem 1.75rem 1.9rem 0;
  border-bottom: 1px solid var(--border);
}
.problem + .problem { padding-left: 1.75rem; border-left: 1px solid var(--border); }
.problem h3 {
  font-size: 1.06rem; font-weight: 700; letter-spacing: -0.015em;
  margin-bottom: 0.6rem;
}
.problem p { font-size: 0.94rem; line-height: 1.62; color: var(--ink-2); }

/* ── 2. Architecture ──────────────────────────────────────── */

.layer-map-head {
  font-family: var(--mono); font-size: 0.66rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.11em;
  color: var(--ink-3);
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--border-strong);
  margin-bottom: 0.25rem;
}

/* Two columns: what the layer is for, and how it's actually built */
.layer {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 1.5rem 2.5rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--border);
}
.layer--human .layer-spec h3 { color: var(--ok); }

.layer-tag {
  display: inline-block;
  font-family: var(--mono); font-size: 0.62rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.11em;
  color: var(--ink-3);
  margin-bottom: 0.45rem;
}
.layer-tag--impl { color: var(--accent); }
.layer-tag--human { color: var(--ok); }

.layer-spec h3 {
  font-size: 1.05rem; letter-spacing: -0.018em;
  margin-bottom: 0.4rem;
}
.layer-spec p {
  font-size: 0.89rem; line-height: 1.58; color: var(--ink-2);
  max-width: 34ch;
}
.layer-impl p { font-size: 0.94rem; line-height: 1.62; }

/* ── 3. Flow ──────────────────────────────────────────────── */

.flow {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1px;
  background: var(--border-dark);
  border: 1px solid var(--border-dark);
  border-radius: 4px;
  overflow: hidden;
}
.flow-step {
  background: var(--navy-2);
  padding: 1.6rem 1.4rem 1.8rem;
}
.flow-step--human { background: var(--navy-3); }

.flow-index {
  display: block;
  font-family: var(--mono); font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--accent-lift);
  margin-bottom: 1.15rem;
}
.flow-step--human .flow-index { color: var(--ok-soft); }

.flow-step h3 {
  font-size: 1.02rem; color: var(--white);
  margin-bottom: 0.55rem;
}
.flow-step p { font-size: 0.89rem; line-height: 1.62; color: var(--on-navy-2); }

/* ── 3. Agents ────────────────────────────────────────────── */

.agent-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(275px, 1fr));
  gap: 0.9rem;
}
.agent {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.25rem 1.3rem 1.4rem;
  transition: border-color .15s ease, transform .15s ease;
}
.agent:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.agent[data-status="next"] { background: transparent; border-style: dashed; }

.agent header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 0.8rem; margin-bottom: 0.6rem;
}
.agent h3 { font-size: 1rem; letter-spacing: -0.015em; }
.agent p { font-size: 0.89rem; line-height: 1.6; color: var(--ink-2); }

.status {
  flex: none;
  font-family: var(--mono); font-size: 0.6rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em;
  padding: 0.24rem 0.45rem; border-radius: 2px;
  white-space: nowrap;
}
.status--live  { background: var(--ok-soft);   color: var(--ok); }
.status--build { background: var(--info-soft); color: var(--info); }
.status--next  { background: var(--paper-2);   color: var(--ink-3); border: 1px solid var(--border); }

/* ── 4. Guardrails ────────────────────────────────────────── */

.guardrails {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 0 2.5rem;
}
.guardrails li {
  padding: 1.35rem 0;
  border-top: 1px solid var(--border-strong);
}
.guardrails h3 {
  font-size: 1rem; letter-spacing: -0.015em;
  margin-bottom: 0.45rem;
  padding-left: 1.35rem;
  position: relative;
}
/* A struck-through square: the thing that cannot happen */
.guardrails h3::before {
  content: ""; position: absolute; left: 0; top: 0.42em;
  width: 9px; height: 9px;
  border: 1.5px solid var(--ink-3);
  background:
    linear-gradient(to bottom right, transparent calc(50% - 0.7px),
      var(--ink-3) calc(50% - 0.7px) calc(50% + 0.7px), transparent calc(50% + 0.7px));
}
.guardrails p {
  font-size: 0.92rem; line-height: 1.62; color: var(--ink-2);
  padding-left: 1.35rem;
}

/* ── 5. Version table ─────────────────────────────────────── */

.table-scroll { overflow-x: auto; }

.version-table {
  width: 100%; min-width: 540px;
  border-collapse: collapse;
  background: var(--white);
  border: 1px solid var(--border);
}
.version-table th {
  text-align: left;
  font-family: var(--mono); font-size: 0.64rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--ink-3);
  padding: 0.7rem 1rem;
  background: var(--paper-2);
  border-bottom: 1px solid var(--border-strong);
}
.version-table td {
  padding: 0.72rem 1rem;
  font-size: 0.92rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.version-table tbody tr:last-child td { border-bottom: 0; }

/* Group headings: the shipped register above, the agents it exists for below.
   Styled apart from the column header — same mono label, no fill, so it reads
   as a divider inside the record rather than a second table starting. */
.version-table .group-row th {
  background: transparent;
  color: var(--ink-2);
  border-bottom: 1px solid var(--border-strong);
  padding-top: 1.5rem;
}
.version-table .group-row:first-child th { padding-top: 0.7rem; }

.version-table td:first-child { width: 4.5rem; }
.version-table td:last-child { width: 10rem; }

/* ── CTA ──────────────────────────────────────────────────── */

.cta-band {
  background: var(--navy);
  color: var(--on-navy);
  padding: clamp(3.5rem, 7vw, 6rem) 0;
}
.cta-inner {
  max-width: var(--measure);
  margin: 0 auto; padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.eyebrow--light { color: var(--accent-lift); }
.cta-inner h2 {
  grid-column: 1;
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  font-weight: 800; letter-spacing: -0.035em; line-height: 1.08;
  color: var(--white);
  margin-bottom: 1rem;
}
.cta-inner .eyebrow { grid-column: 1; margin-bottom: 1.25rem; }
.cta-lede {
  grid-column: 1;
  font-size: 1.02rem; line-height: 1.68;
  color: var(--on-navy-2);
  max-width: 46ch;
}

.cta-form {
  grid-column: 2; grid-row: 1 / span 4;
  background: var(--navy-2);
  border: 1px solid var(--border-dark);
  border-radius: 5px;
  padding: 1.5rem;
}
.field { margin-bottom: 1rem; }
.field label {
  display: block;
  font-family: var(--mono); font-size: 0.64rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--on-navy-3);
  margin-bottom: 0.4rem;
}
.field input, .field select {
  width: 100%;
  font-family: var(--body); font-size: 0.95rem;
  color: var(--white);
  background: var(--navy);
  border: 1px solid var(--border-dark);
  border-radius: 3px;
  padding: 0.65rem 0.75rem;
}
.field input::placeholder { color: var(--on-navy-3); }
.field input:focus, .field select:focus { border-color: var(--accent-lift); outline: none; }
.field select { appearance: none; cursor: pointer; }

.form-note {
  margin-top: 0.8rem;
  font-size: 0.78rem; color: var(--on-navy-3);
}
.form-note[data-ok="true"] { color: var(--ok-soft); }

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

.doc-footer {
  background: var(--paper-2);
  border-top: 1px solid var(--border-strong);
  padding: 2.25rem 0 2.75rem;
}
.footer-inner {
  max-width: var(--measure);
  margin: 0 auto; padding: 0 var(--gutter);
  display: flex; flex-wrap: wrap; align-items: flex-start;
  gap: 2rem 3rem;
}
.footer-brand { display: flex; align-items: center; gap: 0.7rem; }
.footer-brand .wordmark-mark {
  background:
    linear-gradient(var(--accent) 0 0) 0 0 / 100% 3px no-repeat,
    linear-gradient(var(--ink-3) 0 0) 0 6px / 100% 3px no-repeat,
    linear-gradient(var(--border-strong) 0 0) 0 12px / 100% 3px no-repeat;
}
.footer-name {
  font-family: var(--display); font-weight: 800; font-size: 1rem;
  letter-spacing: -0.03em;
}
.footer-by { font-size: 0.82rem; color: var(--ink-2); }

.footer-control { display: flex; flex-wrap: wrap; gap: 0 2rem; margin-left: auto; }
.footer-control dt {
  font-family: var(--mono); font-size: 0.6rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--ink-3); margin-bottom: 0.15rem;
}
.footer-control dd { font-size: 0.85rem; }

/* Reference list — set the way a controlled document sets one */
.references {
  flex-basis: 100%;
  border-top: 1px solid var(--border);
  padding-top: 1.4rem;
}
.references-head {
  font-family: var(--mono); font-size: 0.64rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.11em;
  color: var(--ink-3);
  margin-bottom: 0.75rem;
}
.reference-list { display: grid; gap: 0.5rem; max-width: 78ch; }
.reference-list li {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  font-size: 0.8rem; line-height: 1.55;
  color: var(--ink-2);
}
.ref-no { font-family: var(--mono); font-size: 0.75rem; color: var(--ink-3); }
.reference-list cite { font-style: italic; }
.reference-list a { color: var(--accent); text-decoration: none; }
.reference-list a:hover { text-decoration: underline; }

.footer-note {
  flex-basis: 100%;
  font-size: 0.76rem; color: var(--ink-3);
  border-top: 1px solid var(--border);
  padding-top: 1.1rem;
  max-width: 78ch;
}

/* ── Reveal + stagger ─────────────────────────────────────── */

[data-stagger] { opacity: 0; transform: translateY(10px); }
.ready [data-stagger] {
  animation: rise .6s cubic-bezier(.2,.7,.3,1) both;
  animation-delay: calc(var(--i, 0) * 70ms);
}
@keyframes rise { to { opacity: 1; transform: none; } }

.reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s cubic-bezier(.2,.7,.3,1); }
.reveal.in { opacity: 1; transform: none; }

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

@media (max-width: 940px) {
  .hero-grid { grid-template-columns: 1fr; }
  .cta-inner { grid-template-columns: 1fr; }
  .cta-form { grid-column: 1; grid-row: auto; }
  .strip-nav a:not(.strip-cta) { display: none; }
  .strip-meta--doc { display: none; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .clause-head { grid-template-columns: 2.6rem minmax(0, 1fr); }
  .clause-no { font-size: 0.9rem; padding-top: 0.35rem; }
  .problem + .problem { padding-left: 0; border-left: 0; }
  .problem { padding-right: 0; }
  .guardrails { gap: 0; }
  .layer { grid-template-columns: 1fr; gap: 1rem; }
  .layer-spec p { max-width: none; }
  .strip-meta--rev { border-left: 0; padding-left: 0; }
  .hero-facts { gap: 1.1rem 2rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  [data-stagger], .reveal { opacity: 1; transform: none; }
}