/* ===========================================================
   Provenact — Porcelain & Cobalt
   One blue, spent carefully: cobalt marks the brand, the proven
   and the important. Everything else is porcelain, white and ink.
   Canonical palette: docs/research/provenact/PROVENACT-BRAND-POSITIONING.md
   Runtime SSoT in the product: src/uiTokens.ts (COLORS.brand.provenact*)
   =========================================================== */

:root {
  /* locked palette */
  --cobalt: #1439c0;
  --cobalt-deep: #0e2a8e;
  --periwinkle: #8ea4f0;
  --tint: #eef1fb;
  --porcelain: #f7f8fa;
  --ink: #101828;
  --grey: #5c6470;
  --line: #e3e6ec;

  /* derived, used consistently */
  --body: #3f4756;
  --rule-strong: #cfd5e0;
  --ink-soft: #141b30;
  --on-dark: #c2cadb;
  --on-dark-strong: #e8ecf5;

  /* semantic — separate from the accent, used only for state */
  --good: #16643f;
  --good-bg: #edf7f2;
  --amber: #8a6410;
  --amber-bg: #fdf6e6;
  --amber-line: #e8d9ae;
  --alert: #9b2c25;
  --alert-bg: #f7ebea;
  --alert-line: #e6c9c6;

  --serif: Literata, Georgia, "Times New Roman", serif;
  --sans:
    "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial,
    sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, Menlo, monospace;

  --gutter: clamp(20px, 6vw, 88px);
  --measure: 68ch;
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: #ffffff;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--cobalt);
  text-decoration: none;
}
a:hover {
  color: var(--cobalt-deep);
  text-decoration: underline;
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--cobalt);
  outline-offset: 2px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--cobalt);
  color: #fff;
  padding: 12px 18px;
  z-index: 50;
}
.skip:focus {
  left: 0;
}

/* ---------- type scale ---------- */

h1,
h2,
h3 {
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -0.024em;
  margin: 0;
  text-wrap: balance;
}
h1 {
  font-size: clamp(34px, 5.2vw, 68px);
  line-height: 1.06;
}
h2 {
  font-size: clamp(27px, 3.4vw, 42px);
  line-height: 1.12;
}
h3 {
  font-size: clamp(19px, 1.7vw, 23px);
  line-height: 1.3;
  letter-spacing: -0.015em;
}

p {
  margin: 0;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--grey);
}
.eyebrow--brand {
  color: var(--cobalt);
  font-size: 11.5px;
  letter-spacing: 0.2em;
}
.eyebrow--light {
  color: var(--periwinkle);
}

.lede {
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.6;
  color: var(--body);
  max-width: 62ch;
}
.body {
  font-size: 16.5px;
  line-height: 1.68;
  color: var(--body);
  max-width: var(--measure);
}
.small {
  font-size: 13px;
  line-height: 1.6;
  color: var(--grey);
}
.mono {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- layout ---------- */

.wrap {
  max-width: 1440px;
  margin: 0 auto;
}
.section {
  padding: clamp(56px, 8vw, 96px) var(--gutter);
}
.section--tint {
  background: var(--porcelain);
  border-top: 1px solid var(--line);
}
.section--dark {
  background: var(--ink);
  color: var(--porcelain);
}
.section--dark h2 {
  color: var(--porcelain);
}
.section--dark .body {
  color: var(--on-dark);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.stack--tight {
  gap: 12px;
}
.stack--loose {
  gap: 36px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}
.split--wide {
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
}
.split__delay {
  padding-top: 42px;
}
@media (max-width: 860px) {
  .split,
  .split--wide {
    grid-template-columns: minmax(0, 1fr);
  }
  .split__delay {
    padding-top: 0;
  }
}

/* ---------- nav ---------- */

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px var(--gutter);
  border-bottom: 1px solid var(--line);
  max-width: 1440px;
  margin: 0 auto;
  flex-wrap: wrap;
}
.nav__left {
  display: flex;
  align-items: baseline;
  gap: clamp(20px, 3vw, 44px);
  flex-wrap: wrap;
}
.wordmark {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}
.wordmark:hover {
  color: var(--ink);
  text-decoration: none;
}
.wordmark span {
  color: var(--cobalt);
}
.nav__links {
  display: flex;
  gap: clamp(16px, 2vw, 30px);
  font-size: 14px;
  flex-wrap: wrap;
}
.nav__links a {
  color: var(--grey);
}
.nav__links a[aria-current="page"] {
  color: var(--cobalt);
  font-weight: 600;
  border-bottom: 2px solid var(--cobalt);
  padding-bottom: 3px;
}
.nav__right {
  display: flex;
  align-items: center;
  gap: 22px;
}
.nav__byline {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--grey);
}
@media (max-width: 720px) {
  .nav__byline {
    display: none;
  }
}

/* ---------- brand lockup (nav) ---------- */

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
}
.brand:hover {
  text-decoration: none;
}
.brand:hover .wordmark {
  color: var(--ink);
}
.brand__tile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  flex: 0 0 auto;
  background: var(--cobalt);
  color: #ffffff;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  /* Literata sits high in its box at this size; nudge it onto the optical centre. */
  padding-top: 2px;
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 26px;
  border-radius: 3px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  min-height: 48px;
}
.btn:hover {
  text-decoration: none;
}
.btn--primary {
  background: var(--cobalt);
  color: #ffffff;
}
.btn--primary:hover {
  background: var(--cobalt-deep);
  color: #ffffff;
}
.btn--ghost {
  border-color: var(--cobalt);
  color: var(--cobalt);
  background: transparent;
}
.btn--ghost:hover {
  background: var(--tint);
  color: var(--cobalt-deep);
}
.btn--quiet {
  border-color: var(--rule-strong);
  color: var(--ink);
  background: #fff;
}
.btn--sm {
  font-size: 13.5px;
  padding: 9px 18px;
  min-height: 40px;
}
.btn--block {
  width: 100%;
}
.btn[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
}
.btn__row {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 15px;
  font-weight: 600;
}

/* ---------- honesty strip ---------- */

.strip {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.1vw, 28px);
  flex-wrap: wrap;
  padding: 18px var(--gutter);
  background: var(--porcelain);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.dot-dashed {
  display: inline-block;
  width: 7px;
  height: 7px;
  border: 1px dashed var(--cobalt);
  border-radius: 50%;
  flex: 0 0 auto;
}
.strip__badge {
  display: flex;
  align-items: center;
  gap: 9px;
}
.strip__badge span {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cobalt);
}
.strip__facts {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--grey);
}
.strip__note {
  font-size: 12.5px;
  color: var(--grey);
  margin-left: auto;
}
@media (max-width: 860px) {
  .strip__note {
    margin-left: 0;
  }
}

/* ---------- figures ---------- */

.figures {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
@media (max-width: 860px) {
  .figures {
    grid-template-columns: minmax(0, 1fr);
  }
}
.figure {
  background: #fff;
  padding: 32px 30px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.figure__v {
  font-family: var(--serif);
  font-size: clamp(38px, 4vw, 54px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cobalt);
  font-variant-numeric: tabular-nums;
}
.figure__k {
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--body);
}
.figure__s {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--grey);
}

/* ---------- cards / grids ---------- */

.cards {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.cards--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.cards--5 {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}
.cards--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
@media (max-width: 1040px) {
  .cards--5 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 860px) {
  .cards--3,
  .cards--2,
  .cards--5 {
    grid-template-columns: minmax(0, 1fr);
  }
}
.card {
  background: #fff;
  padding: 28px 26px 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.card__n {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--cobalt);
}
.card__t {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}
.card__d {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--grey);
}
.card--wide .card__t {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 500;
  line-height: 1.32;
}
.card--wide .card__d {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--body);
}

.panel {
  background: var(--ink-soft);
  border: 1px solid #2a3350;
  padding: 28px 30px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.panel__k {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--periwinkle);
}
.panel ul {
  margin: 0;
  padding-left: 18px;
}
.panel li {
  font-size: 15px;
  line-height: 1.5;
  color: var(--on-dark-strong);
  margin-bottom: 8px;
}
.panel li:last-child {
  margin-bottom: 0;
}

.callout {
  border-left: 3px solid var(--cobalt);
  background: var(--tint);
  padding: 22px 26px;
  max-width: 78ch;
}
.callout p {
  font-family: var(--serif);
  font-size: clamp(17px, 1.6vw, 19px);
  line-height: 1.5;
  color: var(--ink);
}

.chain {
  font-family: var(--mono);
  font-size: clamp(12px, 1.1vw, 14.5px);
  line-height: 1.9;
  color: var(--cobalt);
  overflow-x: auto;
}

/* ---------- pills ---------- */

.pill {
  display: inline-flex;
  align-items: center;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 9px;
  white-space: nowrap;
}
.pill--built {
  background: var(--cobalt);
  color: #fff;
}
.pill--exception {
  background: var(--alert-bg);
  color: var(--alert);
  border: 1px solid var(--alert-line);
}
.pill--fiction {
  background: var(--amber-bg);
  color: var(--amber);
  border: 1px solid var(--amber-line);
}

/* ---------- tables ---------- */

.tw {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: #fff;
}
.tw table {
  border-collapse: collapse;
  width: 100%;
  min-width: 620px;
  font-size: 14.5px;
}
.tw th,
.tw td {
  text-align: left;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  line-height: 1.6;
}
.tw thead th {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey);
  background: var(--porcelain);
  border-bottom: 1px solid var(--rule-strong);
  white-space: nowrap;
}
.tw tbody tr:last-child td {
  border-bottom: none;
}
.tw th[scope="row"] {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

/* ---------- the check: marked-up copy ---------- */

.doc {
  border: 1px solid var(--rule-strong);
  background: #fff;
}
.doc__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 26px;
  background: var(--porcelain);
  border-bottom: 1px solid var(--rule-strong);
  flex-wrap: wrap;
}
.doc__head span:first-child {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey);
}
.doc__body {
  padding: clamp(24px, 3vw, 34px) clamp(24px, 3vw, 38px) 40px;
}
.doc__body p {
  font-family: var(--serif);
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 2.05;
  color: var(--ink);
}

mark {
  background: transparent;
  color: inherit;
  /* No horizontal padding: it pushes adjacent punctuation away from the word. */
  padding: 1px 0;
}
mark.is-supported {
  background: transparent;
  border-bottom: 2px solid var(--cobalt);
  padding-bottom: 1px;
}
mark.is-unsupported {
  background: var(--amber-bg);
  box-shadow: 0 2px 0 var(--amber);
}
mark.is-contradicted {
  background: var(--alert-bg);
  box-shadow: 0 2px 0 var(--alert);
}
mark.is-stale {
  background: var(--tint);
  box-shadow: 0 2px 0 var(--grey);
}

.key {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  padding-top: 30px;
  margin-top: 28px;
  border-top: 1px solid var(--line);
}
.key div {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--grey);
}
.key i {
  display: inline-block;
  width: 20px;
  height: 3px;
}

.exception {
  border: 1px solid var(--line);
  background: #fff;
  border-left: 3px solid var(--grey);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.exception--unsupported {
  border-color: var(--amber-line);
  border-left-color: var(--amber);
}
.exception--contradicted {
  border-color: var(--alert-line);
  border-left-color: var(--alert);
}
.exception--authority {
  background: var(--tint);
  border-color: var(--tint);
  border-left-color: var(--cobalt);
}
.exception__k {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.exception__q {
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--ink);
}
.exception__d {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--grey);
}
.exception__s {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--grey);
}

/* ---------- receipt ---------- */

.receipt {
  border: 1px solid var(--rule-strong);
  background: #fff;
}
.receipt__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px clamp(20px, 2.5vw, 32px);
  background: var(--ink);
  flex-wrap: wrap;
}
.receipt__id {
  font-family: var(--mono);
  font-size: 17px;
  color: var(--porcelain);
}
.receipt__row {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr) 160px;
  border-bottom: 1px solid var(--line);
}
.receipt__row:last-of-type {
  border-bottom: none;
}
.receipt__row > * {
  padding: 22px clamp(18px, 2vw, 30px);
}
.receipt__row > :first-child,
.receipt__row > :nth-child(2) {
  border-right: 1px solid var(--line);
}
.receipt__label {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}
.receipt__d {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--body);
}
.receipt__foot {
  border-top: 2px solid var(--ink);
  padding: 26px clamp(20px, 2.5vw, 32px);
  background: var(--porcelain);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.breach {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}
.breach__a {
  font-family: var(--serif);
  font-size: clamp(34px, 3.5vw, 46px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--alert);
}
.breach__b {
  font-family: var(--serif);
  font-size: clamp(24px, 2.4vw, 30px);
  font-weight: 500;
  line-height: 1;
  color: var(--ink);
}
@media (max-width: 860px) {
  .receipt__row {
    grid-template-columns: minmax(0, 1fr);
  }
  .receipt__row > :first-child,
  .receipt__row > :nth-child(2) {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }
}

/* ---------- form ---------- */

.form {
  border: 1px solid var(--rule-strong);
  background: #fff;
  padding: clamp(24px, 3vw, 34px) clamp(22px, 3vw, 36px) 36px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.field label {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
}
.field label .opt {
  font-weight: 400;
  color: var(--grey);
}
.field input,
.field textarea {
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
  border: 1px solid var(--rule-strong);
  background: #fff;
  padding: 12px 14px;
  min-height: 48px;
  border-radius: 0;
}
.field textarea {
  min-height: 88px;
  resize: vertical;
}
.field input:focus,
.field textarea:focus {
  border-color: var(--cobalt);
}
.field--key input,
.field--key textarea {
  border-color: var(--cobalt);
}
.field__hint {
  font-size: 13px;
  color: var(--grey);
}
.pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
@media (max-width: 620px) {
  .pair {
    grid-template-columns: minmax(0, 1fr);
  }
}

.chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.chips input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.chips label {
  border: 1px solid var(--rule-strong);
  padding: 11px 16px;
  font-size: 14px;
  color: var(--grey);
  cursor: pointer;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.chips input:checked + label {
  border-color: var(--cobalt);
  background: var(--cobalt);
  color: #fff;
  font-weight: 600;
}
.chips input:focus-visible + label {
  outline: 2px solid var(--cobalt);
  outline-offset: 2px;
}

.form__status {
  font-size: 14.5px;
  line-height: 1.6;
  padding: 12px 16px;
  border-left: 3px solid var(--cobalt);
  background: var(--tint);
}
.form__status[data-state="error"] {
  border-left-color: var(--alert);
  background: var(--alert-bg);
  color: var(--alert);
}
.form__status[hidden] {
  display: none;
}

.thanks {
  border: 1px solid var(--rule-strong);
  background: #fff;
  padding: clamp(24px, 3vw, 34px) clamp(22px, 3vw, 36px);
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.thanks__h {
  display: flex;
  align-items: center;
  gap: 12px;
}
.thanks__h span {
  font-family: var(--serif);
  font-size: 25px;
  font-weight: 500;
  letter-spacing: -0.015em;
}
.hr {
  height: 1px;
  background: var(--line);
  border: 0;
  margin: 0;
}

.bring {
  border: 1px solid var(--line);
  background: var(--porcelain);
  padding: 26px 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.bring ol {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  counter-reset: bring;
}
.bring li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink);
  counter-increment: bring;
}
.bring li::before {
  content: "0" counter(bring);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--cobalt);
  flex: 0 0 auto;
}

/* ---------- product path ---------- */

.path {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
@media (max-width: 1040px) {
  .path {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 620px) {
  .path {
    grid-template-columns: minmax(0, 1fr);
  }
}
.path__step {
  background: #ffffff;
  padding: 26px 24px 30px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-top: 3px solid transparent;
}
.path__step--now {
  border-top-color: var(--cobalt);
  background: var(--tint);
}
.path__k {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey);
}
.path__step--now .path__k {
  color: var(--cobalt);
  font-weight: 500;
}
.path__t {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 500;
  line-height: 1.3;
  color: var(--ink);
}
.path__d {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--grey);
}

/* ---------- the six controls ---------- */

.controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
@media (max-width: 980px) {
  .controls {
    grid-template-columns: minmax(0, 1fr);
  }
}
.controls__group {
  background: #ffffff;
  padding: 26px 26px 30px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.controls__k {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cobalt);
}
.controls__q {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 500;
  line-height: 1.34;
  color: var(--ink);
  padding-bottom: 6px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--line);
}
.controls__pair {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.controls__item {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.controls__t {
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink);
}
.controls__d {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--grey);
}

/* ---------- operating memory ---------- */

.memory {
  border: 1px solid var(--rule-strong);
  background: #ffffff;
}
.memory__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  padding: 14px 24px;
  background: var(--porcelain);
  border-bottom: 1px solid var(--rule-strong);
}
.memory__head span:first-child {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey);
}
.memory__list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.memory__list li {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr) 160px;
  gap: 18px;
  align-items: baseline;
  padding: 16px 24px;
  border-bottom: 1px solid var(--line);
}
.memory__list li:last-child {
  border-bottom: none;
}
@media (max-width: 760px) {
  .memory__list li {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }
}
.memory__id {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--cobalt);
}
.memory__r {
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
}
.memory__w {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--grey);
}

/* ===========================================================
   Where we are — page layout
   Deliberately fewer boxes than the rest of the site. Rules and
   ground changes carry the structure; a border is spent only on
   the two things that are genuinely objects: the control grid
   and the operating-memory ledger.
   =========================================================== */

.band {
  padding: clamp(52px, 6vw, 76px) var(--gutter);
}
.band--tight {
  padding-top: clamp(36px, 4vw, 52px);
  padding-bottom: clamp(36px, 4vw, 52px);
}
.band--tint {
  background: var(--porcelain);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.band--ink {
  background: var(--ink);
  color: var(--porcelain);
}

/* opener: the headline carries the page, the lede sits beneath on a measure */
.opener {
  padding: clamp(48px, 6vw, 84px) var(--gutter) clamp(32px, 4vw, 44px);
  display: flex;
  flex-direction: column;
  gap: 22px;
  max-width: 1120px;
}
.opener__h {
  font-family: var(--serif);
  font-size: clamp(34px, 4.6vw, 60px);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.026em;
  margin: 0;
}
.opener__lede {
  font-size: clamp(16.5px, 1.4vw, 19px);
  line-height: 1.64;
  color: var(--body);
  max-width: 68ch;
  margin: 0;
}

/* section head: a rule instead of a two-column split with a dead half */
.rule-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding-bottom: 14px;
  margin-bottom: 30px;
  border-bottom: 1px solid var(--rule-strong);
}
.band--ink .rule-head {
  border-bottom-color: rgba(142, 164, 240, 0.28);
}
.rule-head__h {
  font-family: var(--serif);
  font-size: clamp(24px, 2.6vw, 33px);
  font-weight: 500;
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin: 0;
}
.rule-head__note {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey);
}

.lead-para {
  font-size: 16.5px;
  line-height: 1.68;
  color: var(--body);
  max-width: 78ch;
  margin: 0 0 28px;
}

.footnote {
  font-size: 13px;
  line-height: 1.65;
  color: var(--grey);
  max-width: 92ch;
  margin: 22px 0 0;
}
.footnote--light {
  color: #8792a8;
}

/* the path, as a progression with a line running through it */
.track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
}
@media (max-width: 980px) {
  .track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px 28px;
  }
}
@media (max-width: 600px) {
  .track {
    grid-template-columns: minmax(0, 1fr);
  }
}
.track__step {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding-top: 26px;
  position: relative;
  border-top: 1px solid var(--rule-strong);
}
.track__step.is-now {
  border-top-color: var(--cobalt);
  border-top-width: 2px;
  padding-top: 25px;
}
.track__dot {
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid var(--rule-strong);
}
.track__step.is-now .track__dot {
  background: var(--cobalt);
  border-color: var(--cobalt);
  top: -6px;
  width: 11px;
  height: 11px;
}
.track__k {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey);
}
.track__step.is-now .track__k {
  color: var(--cobalt);
  font-weight: 500;
}
.track__t {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 500;
  line-height: 1.3;
  color: var(--ink);
}
.track__d {
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--grey);
}

/* demonstrated / open — text columns, not cards */
.ledger-split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(28px, 4vw, 64px);
  margin-top: 34px;
  padding-top: 28px;
  border-top: 1px solid var(--rule-strong);
}
@media (max-width: 860px) {
  .ledger-split {
    grid-template-columns: minmax(0, 1fr);
  }
}
.ledger-split__col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.ledger-split__d {
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--body);
  margin: 0;
}

/* operating memory — the page's anchor, on ink */
.memory-head {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 80ch;
  margin-bottom: 34px;
}
.memory-head__h {
  font-family: var(--serif);
  font-size: clamp(27px, 3.2vw, 40px);
  font-weight: 500;
  line-height: 1.14;
  letter-spacing: -0.022em;
  color: var(--porcelain);
  margin: 0;
  max-width: 22ch;
}
.memory-head__d {
  font-size: 16.5px;
  line-height: 1.68;
  color: var(--on-dark);
  margin: 0;
  max-width: 70ch;
}
.band--ink .memory {
  border-color: rgba(142, 164, 240, 0.3);
  background: var(--ink-soft);
}
.band--ink .memory__head {
  background: rgba(142, 164, 240, 0.09);
  border-bottom-color: rgba(142, 164, 240, 0.3);
}
.band--ink .memory__head span:first-child {
  color: var(--periwinkle);
}
.band--ink .memory__list li {
  border-bottom-color: rgba(142, 164, 240, 0.16);
  padding: 18px 26px;
}
.band--ink .memory__id {
  color: var(--periwinkle);
}
.band--ink .memory__r {
  color: var(--on-dark-strong);
  font-size: 15.5px;
}
.band--ink .memory__w {
  color: #8792a8;
}

/* three keeps — plain columns under a rule, no boxes */
.keeps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 3.5vw, 52px);
  margin-top: 40px;
}
@media (max-width: 860px) {
  .keeps {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }
}
.keeps__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 20px;
  border-top: 1px solid rgba(142, 164, 240, 0.3);
}
.keeps__k {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--periwinkle);
  margin: 0;
}
.keeps__t {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 500;
  line-height: 1.28;
  color: var(--porcelain);
  margin: 0;
}
.keeps__d {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--on-dark);
  margin: 0;
}

/* closing — one measure, so there is no empty half */
.closing {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 76ch;
}
.closing__h {
  font-family: var(--serif);
  font-size: clamp(27px, 3.2vw, 38px);
  font-weight: 500;
  line-height: 1.14;
  letter-spacing: -0.022em;
  margin: 0;
}
.closing__body {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.closing__cta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  padding-top: 8px;
}

/* ===========================================================
   Home page
   =========================================================== */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(36px, 5vw, 76px);
  align-items: center;
  padding: clamp(48px, 6vw, 88px) var(--gutter) clamp(44px, 5vw, 72px);
}
@media (max-width: 1040px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
  }
}
.hero__say {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.hero__h {
  font-family: var(--serif);
  font-size: clamp(36px, 4.9vw, 64px);
  font-weight: 500;
  line-height: 1.04;
  letter-spacing: -0.03em;
  margin: 0;
}
.hero__lede {
  font-size: clamp(16.5px, 1.35vw, 18.5px);
  line-height: 1.65;
  color: var(--body);
  max-width: 54ch;
  margin: 0;
}
.hero__cta {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
  padding-top: 4px;
}

/* the hero's evidence card — the product doing its job */
.evidence {
  margin: 0;
  border: 1px solid var(--rule-strong);
  background: #ffffff;
  box-shadow:
    0 1px 2px rgba(16, 24, 40, 0.04),
    0 18px 44px rgba(16, 24, 40, 0.07);
}
.evidence__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 13px 22px;
  background: var(--porcelain);
  border-bottom: 1px solid var(--rule-strong);
}
.evidence__head span:first-child {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey);
}
.evidence__doc {
  padding: 24px 24px 22px;
}
.evidence__doc p {
  font-family: var(--serif);
  font-size: 16.5px;
  line-height: 1.95;
  color: var(--ink);
  margin: 0;
}
.evidence__row {
  padding: 20px 24px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.evidence__row--auth {
  background: var(--tint);
  border-top-color: var(--rule-strong);
}
.evidence__k {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grey);
}
.evidence__row--auth .evidence__k {
  color: var(--cobalt);
}
.evidence__breach {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.evidence__big {
  font-family: var(--serif);
  font-size: clamp(38px, 3.6vw, 50px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--alert);
}
.evidence__vs {
  font-size: 14.5px;
  color: var(--grey);
}
.evidence__lim {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 500;
  line-height: 1;
  color: var(--ink);
}
.evidence__d,
.evidence__auth {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--grey);
  margin: 0;
}
.evidence__auth {
  font-size: 14.5px;
  color: var(--ink);
}

/* the problem — one dominant figure */
.stat {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 60px);
  align-items: start;
}
@media (max-width: 980px) {
  .stat {
    grid-template-columns: minmax(0, 1fr);
  }
}
.stat__hero {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-top: 20px;
  border-top: 2px solid var(--cobalt);
}
.stat__v {
  font-family: var(--serif);
  font-size: clamp(64px, 9vw, 132px);
  font-weight: 500;
  line-height: 0.88;
  letter-spacing: -0.045em;
  color: var(--cobalt);
  font-variant-numeric: tabular-nums;
}
.stat__pc {
  font-size: 0.56em;
  letter-spacing: -0.02em;
}
.stat__k {
  font-size: 16.5px;
  line-height: 1.62;
  color: var(--body);
  max-width: 46ch;
  margin: 0;
}
.stat__s {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--grey);
}
.stat__pair {
  display: flex;
  flex-direction: column;
  gap: 32px;
  padding-top: 10px;
}
.stat__small {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding-top: 18px;
  border-top: 1px solid var(--rule-strong);
}
.stat__v2 {
  font-family: var(--serif);
  font-size: clamp(34px, 3.4vw, 46px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.stat__k2 {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--body);
}

/* the marked-up draft, large, on ink */
.markup {
  border-left: 3px solid var(--periwinkle);
  padding: 4px 0 4px 28px;
  margin: 8px 0 26px;
}
.markup__p {
  font-family: var(--serif);
  font-size: clamp(19px, 2.1vw, 28px);
  line-height: 1.82;
  letter-spacing: -0.012em;
  color: var(--porcelain);
  margin: 0;
  max-width: 46ch;
}
.band--ink mark.is-supported {
  border-bottom: 2px solid var(--periwinkle);
  background: transparent;
  color: inherit;
}
.band--ink mark.is-unsupported {
  background: rgba(216, 169, 58, 0.17);
  box-shadow: 0 2px 0 #d8a93a;
  color: inherit;
}
.band--ink mark.is-contradicted {
  background: rgba(217, 105, 95, 0.2);
  box-shadow: 0 2px 0 #d9695f;
  color: inherit;
}
.band--ink mark.is-stale {
  background: rgba(135, 146, 168, 0.2);
  box-shadow: 0 2px 0 #8792a8;
  color: inherit;
}
.legend {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  align-items: center;
  padding-top: 22px;
  border-top: 1px solid rgba(142, 164, 240, 0.24);
}
.legend__i {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  color: var(--on-dark);
}
.legend__i i {
  display: inline-block;
  width: 20px;
  height: 3px;
  flex: 0 0 auto;
}
.legend__i--muted {
  color: #8792a8;
  font-style: italic;
}
.legend__more {
  margin-left: auto;
  color: var(--periwinkle);
  font-size: 14px;
}
.legend__more:hover {
  color: #ffffff;
}
.lead-para--light {
  color: var(--on-dark);
}

/* the chain, as a spine */
.spine {
  list-style: none;
  margin: 0 0 40px;
  padding: 22px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 0;
  position: relative;
}
.spine::before {
  content: "";
  position: absolute;
  top: 5px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    var(--cobalt) 0%,
    var(--periwinkle) 70%,
    var(--line) 100%
  );
}
.spine__n {
  position: relative;
  flex: 1 1 auto;
  min-width: 120px;
  padding-right: 12px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--ink);
}
.spine__dot {
  position: absolute;
  top: -22px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cobalt);
}
.spine__n--end .spine__dot {
  background: #ffffff;
  border: 2px solid var(--cobalt);
  width: 11px;
  height: 11px;
  top: -23px;
}

.stages {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: clamp(20px, 2.6vw, 34px);
}
@media (max-width: 1040px) {
  .stages {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 600px) {
  .stages {
    grid-template-columns: minmax(0, 1fr);
  }
}
.stages__i {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 18px;
  border-top: 1px solid var(--rule-strong);
}
.stages__n {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--cobalt);
}
.stages__t {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 500;
  color: var(--ink);
}
.stages__d {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--grey);
}

/* pull quote */
.pull {
  margin: 44px 0 0;
  padding: 0 0 0 28px;
  border-left: 3px solid var(--cobalt);
  max-width: 68ch;
}
.pull p {
  font-family: var(--serif);
  font-size: clamp(19px, 1.9vw, 24px);
  line-height: 1.5;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0;
}
.pull__coda {
  color: var(--cobalt) !important;
  margin-top: 14px !important;
}

/* three columns, no boxes */
.three {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 3.4vw, 52px);
}
@media (max-width: 860px) {
  .three {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }
}
.three__i {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding-top: 20px;
  border-top: 2px solid var(--cobalt);
}
.three__k {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cobalt);
  margin: 0;
}
.three__t {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 500;
  line-height: 1.3;
  color: var(--ink);
  margin: 0;
}
.three__d {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--body);
  margin: 0;
}

/* ---------- closing mark ---------- */

.mark-band {
  background: linear-gradient(
    180deg,
    var(--cobalt) 0%,
    var(--cobalt-deep) 100%
  );
  padding: clamp(56px, 7vw, 84px) var(--gutter) clamp(52px, 6.5vw, 78px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
  text-align: center;
}
.mark-band__p {
  font-family: var(--serif);
  font-size: clamp(84px, 9vw, 128px);
  font-weight: 700;
  line-height: 0.86;
  letter-spacing: -0.03em;
  color: #fff;
}
.mark-band__rule {
  width: 62px;
  height: 2px;
  background: rgba(255, 255, 255, 0.75);
}
.mark-band__tag {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: #fff;
}
.mark-band__sub {
  font-size: 15.5px;
  line-height: 1.6;
  color: #cdd7f5;
  max-width: 46ch;
  padding-top: 12px;
}

/* ---------- footer ---------- */

.foot {
  border-top: 1px solid var(--line);
  padding: 30px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  max-width: 1440px;
  margin: 0 auto;
}
.foot__meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--grey);
}
.foot__links {
  display: flex;
  gap: 20px;
  font-size: 13.5px;
}
.foot__links a {
  color: var(--grey);
}

/* ---------- register ---------- */

.register {
  padding: 26px 28px;
  border: 1px solid var(--rule-strong);
  background: #fff;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.register__k {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grey);
}
.register__hard {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--ink);
  letter-spacing: -0.01em;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}