/* ==========================================================================
   Madison AI Clinic
   One page. Fluid between 390px and 1440px; the two reference mockups are the
   fixed-width snapshots at either end.

   Two deliberate departures from the token list in BUILD.md, both from the
   contrast check it asks for:
     --ink-3      #7C7263 -> #6F6656. The original is 4.13:1 on --band and
                  4.46:1 on --paper; both miss AA for text this small.
     --dark-ink-3 replaces #7A7264 / #6B6355 on the dark section, which were
                  3.9:1 and 3.1:1.
   --ink-4 is unchanged, but it is now used only for the decorative ordinal
   beside a list item whose order the markup already carries (and which is
   aria-hidden). Two labels the mockups gave it — "p. 05" and the part-one /
   part-two qualifiers — carry meaning, so they moved to --ink-3.
   ========================================================================== */

:root {
  --paper: #FBF8F3;
  --card: #FFFDF9;
  --band: #F4EFE6;
  --inset: #F7F2E9;

  --ink: #16130F;
  --ink-2: #4E4639;
  --ink-3: #6F6656;
  --ink-4: #A9A092;

  --rule: #E4DCCE;
  --rule-2: #F0E9DD;
  --field: #DCD2C1;
  --meter-track: #EFE6D8;
  --meter-track-2: #EDE3D3;

  --accent: #A4372A;
  --accent-ink: #FBF8F3;

  --dark: #17140F;
  --dark-flat: #16130F;
  --dark-ink: #F6F1E8;
  --dark-ink-2: #C4BBA9;
  --dark-ink-3: #8E8676;
  --dark-rule: #3A342B;
  --dark-rule-2: #2E2921;
  --brass: #C8A24E;

  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;

  /* 1120px of content, 160px gutters at 1440. */
  --content: 1120px;
  --gutter: 20px;

  --col-gap: clamp(28px, calc(28px + 52 * (100vw - 390px) / 730), 80px);
  --sec-y: clamp(44px, calc(44px + 52 * (100vw - 390px) / 730), 96px);
}

@media (min-width: 700px) { :root { --gutter: 40px; } }
@media (min-width: 1000px) { :root { --gutter: 48px; } }

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

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

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

h1, h2, h3, h4 { margin: 0; font-weight: 400; font-family: var(--serif); }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg { max-width: 100%; }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 10;
  padding: 12px 18px;
  background: var(--ink);
  color: var(--paper);
  font-size: 15px;
}
.skip-link:focus { left: 0; color: var(--paper); }

.vh {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

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

.wrap {
  width: 100%;
  max-width: calc(var(--content) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.stack { display: flex; flex-direction: column; }

.sec { padding-block: var(--sec-y); }
.sec--tight-top { padding-top: 0; }
.sec--band {
  background: var(--band);
  border-block: 1px solid var(--rule);
}
.sec--dark { background: var(--dark); color: var(--dark-ink); }

.cols {
  display: grid;
  gap: var(--col-gap);
  align-items: start;
}

@media (min-width: 900px) {
  .cols--620-420 { grid-template-columns: minmax(0, 620fr) minmax(0, 420fr); }
  .cols--380-660 { grid-template-columns: minmax(0, 380fr) minmax(0, 660fr); }
  .cols--420-620 { grid-template-columns: minmax(0, 420fr) minmax(0, 620fr); }
}

.grid { display: grid; gap: clamp(14px, calc(14px + 14 * (100vw - 390px) / 730), 28px); }
@media (min-width: 640px) { .grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 900px) { .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }

/* Copy that differs between the two references. Both are in the document; one
   is hidden at any given width. */
@media (max-width: 899px) { .wide { display: none !important; } }
@media (min-width: 900px) { .narrow { display: none !important; } }

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

.eyebrow {
  font-family: var(--mono);
  font-size: clamp(10px, calc(10px + 1 * (100vw - 390px) / 730), 11px);
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--accent);
  line-height: 1.4;
}

.label {
  font-family: var(--mono);
  font-size: clamp(9px, calc(9px + 1 * (100vw - 390px) / 730), 10px);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  line-height: 1.4;
}
.label--ink { color: var(--ink-2); }

.h1 {
  font-size: clamp(40px, calc(40px + 34 * (100vw - 390px) / 730), 74px);
  line-height: 1.03;
  letter-spacing: -0.022em;
  text-wrap: pretty;
}
.h2 {
  font-size: clamp(32px, calc(32px + 14 * (100vw - 390px) / 730), 46px);
  line-height: 1.09;
  letter-spacing: -0.02em;
  text-wrap: pretty;
}
.h2--sm { font-size: clamp(30px, calc(30px + 8 * (100vw - 390px) / 730), 38px); }
.h2--lg {
  font-size: clamp(36px, calc(36px + 18 * (100vw - 390px) / 730), 54px);
  line-height: 1.06;
}
.h3 {
  font-size: clamp(23px, calc(23px + 6 * (100vw - 390px) / 730), 29px);
  line-height: 1.16;
  letter-spacing: -0.015em;
}
.h4 {
  font-size: clamp(21px, calc(21px + 4 * (100vw - 390px) / 730), 25px);
  line-height: 1.2;
}
.h4--card { font-size: clamp(22px, calc(22px + 4 * (100vw - 390px) / 730), 26px); }

.italic { font-style: italic; }

.lead {
  font-size: clamp(16px, calc(16px + 2 * (100vw - 390px) / 730), 18px);
  line-height: 1.62;
  color: var(--ink-2);
  text-wrap: pretty;
}
.lead--hero { font-size: clamp(17px, calc(17px + 3 * (100vw - 390px) / 730), 20px); }
.lead--ink { color: var(--ink); }

.body {
  font-size: clamp(15px, calc(15px + 2 * (100vw - 390px) / 730), 17px);
  line-height: 1.6;
  color: var(--ink-2);
}
.body--sm {
  font-size: clamp(14px, calc(14px + 1 * (100vw - 390px) / 730), 15px);
  line-height: 1.55;
  color: var(--ink-3);
}
.body--ink { color: var(--ink); }

.pull {
  font-family: var(--serif);
  font-size: clamp(21px, calc(21px + 4 * (100vw - 390px) / 730), 25px);
  line-height: 1.3;
  font-style: italic;
}
.pull--price {
  font-size: clamp(24px, calc(24px + 6 * (100vw - 390px) / 730), 30px);
  line-height: 1.28;
  letter-spacing: -0.012em;
  font-style: normal;
}
.pull--form {
  font-size: clamp(26px, calc(26px + 6 * (100vw - 390px) / 730), 32px);
  line-height: 1.25;
  letter-spacing: -0.015em;
  font-style: normal;
}
.pull--moves {
  font-size: clamp(23px, calc(23px + 4 * (100vw - 390px) / 730), 27px);
  line-height: 1.3;
  font-style: normal;
  color: var(--dark-ink);
}

.num { font-variant-numeric: tabular-nums; }

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 56px;
  padding: 0 28px;
  border: 0;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: inherit;
  font-size: 17px;
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  transition: background-color 120ms ease;
}
.btn:hover { background: #8E2F24; color: var(--accent-ink); }
.btn[disabled] { opacity: 0.72; cursor: default; }
.btn svg { flex: none; }

.btn--nav {
  min-height: 42px;
  padding: 0 22px;
  font-size: 15px;
}
.btn--hero { align-self: flex-start; min-height: 58px; padding: 0 32px; }
.btn--block { width: 100%; min-height: 58px; }

@media (max-width: 899px) {
  .btn--hero { align-self: stretch; }
}

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

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: clamp(60px, calc(60px + 24 * (100vw - 390px) / 730), 84px);
}
.nav__mark { display: flex; align-items: center; }

.brand { display: flex; align-items: center; gap: 14px; }
.brand__icon { display: block; height: clamp(32px, calc(32px + 8 * (100vw - 390px) / 730), 40px); width: auto; }
.brand__word { display: grid; gap: 6px; }
.brand .brand__name {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 900;
  font-size: clamp(17px, calc(17px + 2 * (100vw - 390px) / 730), 19px);
  letter-spacing: 0.18em;
  line-height: 1;
  color: #201e1d;
  text-transform: uppercase;
}
.brand .brand__sub {
  font-family: 'Archivo', sans-serif;
  font-weight: 600;
  font-size: clamp(6.5px, calc(6.5px + 1 * (100vw - 390px) / 730), 7.5px);
  letter-spacing: 0.26em;
  line-height: 1;
  color: var(--accent);
  text-transform: uppercase;
}
.brand--sm { gap: 8px; }
.brand--sm .brand__icon { height: 27px; }
.brand--sm .brand__word { gap: 3px; }
.brand--sm .brand__name { font-size: 13px; }
.brand--sm .brand__sub { font-size: 6px; }

/* --- hero ---------------------------------------------------------------- */

.hero { padding-block: clamp(28px, calc(28px + 60 * (100vw - 390px) / 730), 88px)
                        clamp(36px, calc(36px + 68 * (100vw - 390px) / 730), 104px); }
.hero__text { gap: clamp(20px, calc(20px + 8 * (100vw - 390px) / 730), 28px); }
.hero__lead { max-width: 570px; }
.hero__cta { gap: clamp(11px, calc(11px + 3 * (100vw - 390px) / 730), 14px); padding-top: 4px; }
.hero__micro {
  font-family: var(--mono);
  font-size: clamp(11px, calc(11px + 1 * (100vw - 390px) / 730), 12px);
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--ink-3);
}

/* --- report card --------------------------------------------------------- */

.report { gap: 12px; margin: 0; }
@media (max-width: 899px) { .report { padding-top: 8px; } }

.report__card {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--rule);
  box-shadow: 0 24px 48px -24px rgba(22, 19, 15, 0.26), 0 2px 8px rgba(22, 19, 15, 0.04);
}
.report__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px clamp(20px, calc(20px + 6 * (100vw - 390px) / 730), 26px);
  border-bottom: 1px solid var(--rule);
}
.report__stamp {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  border: 1px solid var(--rule);
  padding: 4px 8px;
}
.report__pad { padding-inline: clamp(20px, calc(20px + 6 * (100vw - 390px) / 730), 26px); }
.report__title { gap: 7px; padding-top: clamp(22px, calc(22px + 8 * (100vw - 390px) / 730), 30px); padding-bottom: 18px; }
.report__name {
  font-size: clamp(25px, calc(25px + 5 * (100vw - 390px) / 730), 30px);
  line-height: 1.15;
  letter-spacing: -0.015em;
}
.report__meta { font-family: var(--mono); font-size: clamp(10px, calc(10px + 1 * (100vw - 390px) / 730), 11px); color: var(--ink-3); }
.report__score { gap: 11px; padding-bottom: 22px; }
.report__figure { display: flex; align-items: flex-end; gap: 9px; }
.report__figure b {
  font-size: clamp(52px, calc(52px + 10 * (100vw - 390px) / 730), 62px);
  line-height: 0.9;
  font-weight: 600;
  letter-spacing: -0.03em;
}
.report__figure span { font-size: 15px; color: var(--ink-3); padding-bottom: 9px; }
.report__gloss { font-size: 13px; line-height: 1.5; color: var(--ink-3); }
.report__bench {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-top: 13px;
  border-top: 1px solid var(--rule-2);
}
.report__bench b { font-size: 16px; font-weight: 400; }
.report__list { border-top: 1px solid var(--rule); }
.report__list li {
  display: flex;
  gap: 13px;
  padding: 13px clamp(20px, calc(20px + 6 * (100vw - 390px) / 730), 26px);
  border-bottom: 1px solid var(--rule-2);
  font-size: clamp(13px, calc(13px + 1 * (100vw - 390px) / 730), 14px);
  line-height: 1.45;
  color: var(--ink-2);
}
.report__list li:last-child { border-bottom: 0; }
.report__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px clamp(20px, calc(20px + 6 * (100vw - 390px) / 730), 26px);
  background: var(--inset);
  border-top: 1px solid var(--rule);
}
.report__caption {
  font-size: clamp(12px, calc(12px + 1 * (100vw - 390px) / 730), 13px);
  line-height: 1.5;
  color: var(--ink-3);
  text-align: center;
}

.ord {
  font-family: var(--mono);
  font-size: clamp(10px, calc(10px + 1 * (100vw - 390px) / 730), 11px);
  color: var(--ink-4);
  flex: none;
}

/* --- meters -------------------------------------------------------------- */

.meter-bar {
  display: flex;
  height: 10px;
  background: var(--meter-track);
  border-radius: 5px;
  overflow: hidden;
}
.meter-bar > i { display: block; background: var(--accent); border-radius: 5px; }

.meters {
  gap: clamp(18px, calc(18px + 4 * (100vw - 390px) / 730), 22px);
  padding: clamp(24px, calc(24px + 14 * (100vw - 390px) / 730), 38px)
           clamp(20px, calc(20px + 20 * (100vw - 390px) / 730), 40px);
  background: var(--card);
  border: 1px solid var(--rule);
}
.meters__head, .meter {
  display: grid;
  align-items: center;
  column-gap: 12px;
  row-gap: 6px;
  grid-template-columns: auto 1fr auto;
  grid-template-areas: "name flag value" "track track track";
}
.meter__name { grid-area: name; font-size: clamp(16px, calc(16px + 1 * (100vw - 390px) / 730), 17px); }
.meter__flag {
  grid-area: flag;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.meter__value { grid-area: value; font-size: clamp(16px, calc(16px + 2 * (100vw - 390px) / 730), 18px); text-align: right; }
.meter__track { grid-area: track; height: 8px; }

.meters__head { display: none; }
.meters__total {
  display: grid;
  align-items: baseline;
  column-gap: 12px;
  grid-template-columns: auto 1fr auto;
  grid-template-areas: "name note value";
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}
.meters__total .meter__name { grid-area: name; }
.meters__total .meter__value {
  grid-area: value;
  font-size: clamp(21px, calc(21px + 1 * (100vw - 390px) / 730), 22px);
  font-weight: 600;
}
.meters__note { grid-area: note; font-size: 16px; color: var(--ink-3); }

@media (min-width: 900px) {
  .meters__head, .meter, .meters__total {
    grid-template-columns: 168px minmax(0, 1fr) 56px 84px;
    grid-template-areas: "name track value flag";
    column-gap: 16px;
  }
  .meters__head { display: grid; }
  .meters__head .meter__flag { text-align: right; }
  .meter__flag { text-align: right; }
  .meter__track { height: 9px; }
  .meters__total { grid-template-areas: "name note value flag"; }
}

/* --- panel --------------------------------------------------------------- */

.card {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--rule);
  padding: clamp(22px, calc(22px + 8 * (100vw - 390px) / 730), 30px)
           clamp(20px, calc(20px + 10 * (100vw - 390px) / 730), 30px);
}
.card--wide { padding: clamp(24px, calc(24px + 10 * (100vw - 390px) / 730), 34px)
                       clamp(20px, calc(20px + 14 * (100vw - 390px) / 730), 34px); }

.persona { gap: 13px; }
.persona__who { gap: 4px; }
.persona__name {
  font-family: var(--mono);
  font-size: clamp(10px, calc(10px + 1 * (100vw - 390px) / 730), 11px);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.persona__ctx { font-size: clamp(13px, calc(13px + 1 * (100vw - 390px) / 730), 14px); line-height: 1.45; color: var(--ink-3); }
.persona__quote {
  font-family: var(--serif);
  font-size: clamp(19px, calc(19px + 1 * (100vw - 390px) / 730), 20px);
  line-height: 1.42;
}

.disclosure {
  gap: 18px;
  padding: clamp(22px, calc(22px + 10 * (100vw - 390px) / 730), 32px)
           clamp(20px, calc(20px + 14 * (100vw - 390px) / 730), 34px);
  border: 1px solid var(--ink);
}
.disclosure__part { gap: 10px; }
.disclosure__part + .disclosure__part { padding-top: 18px; border-top: 1px solid var(--rule); }
.disclosure p { max-width: 960px; }

/* --- competitors --------------------------------------------------------- */

.bench { gap: 10px; }
.bench__src {
  font-family: var(--mono);
  font-size: clamp(10px, calc(10px + 1 * (100vw - 390px) / 730), 11px);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.bench__for { color: var(--ink); font-weight: 500; }

.unclaimed {
  display: grid;
  gap: 12px;
  padding: clamp(24px, calc(24px + 8 * (100vw - 390px) / 730), 32px)
           clamp(20px, calc(20px + 16 * (100vw - 390px) / 730), 36px);
  background: var(--dark-flat);
}
.unclaimed__text {
  font-size: clamp(17px, calc(17px + 2 * (100vw - 390px) / 730), 19px);
  line-height: 1.58;
  color: #F0EBE1;
}
.unclaimed .label { color: var(--brass); }
@media (min-width: 900px) {
  .unclaimed { grid-template-columns: 168px minmax(0, 1fr); gap: 40px; align-items: start; }
  .unclaimed .label { padding-top: 6px; }
}

/* --- a finding in full --------------------------------------------------- */

.finding {
  display: grid;
  align-items: start;
  column-gap: var(--col-gap);
  row-gap: clamp(18px, calc(18px + 8 * (100vw - 390px) / 730), 26px);
  grid-template-areas: "head" "case" "more";
  align-content: start;
}
@media (min-width: 900px) {
  .finding {
    grid-template-columns: minmax(0, 300fr) minmax(0, 740fr);
    grid-template-areas: "head case" "more case";
  }
}
.finding__head { grid-area: head; gap: 16px; }
.finding__case { grid-area: case; }
.finding__more { grid-area: more; gap: 10px; }
.finding__more li { display: flex; gap: 10px; font-size: 15px; line-height: 1.45; color: var(--ink-2); }
.finding__more .ord { padding-top: 3px; }
.finding__more li:last-child { color: var(--ink-3); }

.case {
  gap: clamp(16px, calc(16px + 6 * (100vw - 390px) / 730), 22px);
  padding: clamp(24px, calc(24px + 16 * (100vw - 390px) / 730), 40px)
           clamp(20px, calc(20px + 20 * (100vw - 390px) / 730), 40px);
  background: var(--card);
  border: 1px solid var(--rule);
  box-shadow: 0 20px 40px -28px rgba(22, 19, 15, 0.24);
}
.case__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rule);
}
.case__page { font-family: var(--mono); font-size: 10px; color: var(--ink-3); }
.case__title {
  font-size: clamp(26px, calc(26px + 8 * (100vw - 390px) / 730), 34px);
  line-height: 1.16;
  letter-spacing: -0.018em;
}
.case__take { gap: 6px; }
.case__take span:last-child { font-size: clamp(15px, calc(15px + 2 * (100vw - 390px) / 730), 17px); line-height: 1.55; }

.inset {
  gap: 8px;
  padding: clamp(16px, calc(16px + 4 * (100vw - 390px) / 730), 20px)
           clamp(18px, calc(18px + 4 * (100vw - 390px) / 730), 22px);
  background: var(--inset);
  border-left: 2px solid var(--accent);
}
.evidence { gap: 5px; }
.evidence li {
  font-family: var(--mono);
  font-size: clamp(12px, calc(12px + 1 * (100vw - 390px) / 730), 13px);
  line-height: 1.58;
  color: var(--ink-2);
}

/* --- the two halves ------------------------------------------------------ */

.half { gap: clamp(11px, calc(11px + 7 * (100vw - 390px) / 730), 18px); }
.half__tag { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.half__tag .label { color: var(--accent); }
.half__tag .label + .label { color: var(--ink-3); letter-spacing: 0; text-transform: none; }
.half__points { gap: 12px; }
.half__points li { display: flex; gap: 12px; align-items: flex-start; font-size: 16px; line-height: 1.5; }
.half__points li::before { content: "\2014"; color: var(--ink-4); font-size: 15px; }

/* --- the number moves ---------------------------------------------------- */

.sec--dark .h2, .sec--dark .pull--moves { color: var(--dark-ink); }
.sec--dark .lead { color: var(--dark-ink-2); }
.sec--dark .eyebrow { color: var(--brass); }
.moves__side { gap: clamp(16px, calc(16px + 4 * (100vw - 390px) / 730), 20px); }
.moves__panel { gap: clamp(22px, calc(22px + 8 * (100vw - 390px) / 730), 30px); }

.chart__plot {
  display: flex;
  align-items: flex-end;
  gap: clamp(20px, calc(20px + 36 * (100vw - 390px) / 730), 56px);
  height: 224px;
  border-bottom: 1px solid var(--dark-rule);
}
.chart__col { display: flex; flex-direction: column; align-items: center; gap: 9px; flex: 1 1 0; max-width: 132px; }
.chart__col b {
  font-family: var(--sans);
  font-size: clamp(21px, calc(21px + 5 * (100vw - 390px) / 730), 26px);
  font-weight: 600;
  color: var(--dark-ink);
}
.chart__bar { width: 100%; background: var(--brass); border-radius: 4px 4px 0 0; }
.chart__axis { display: flex; gap: clamp(20px, calc(20px + 36 * (100vw - 390px) / 730), 56px); padding-top: 11px; }
.chart__tick { display: flex; flex-direction: column; align-items: center; gap: 2px; flex: 1 1 0; max-width: 132px; }
.chart__tick span { font-family: var(--mono); font-size: clamp(10px, calc(10px + 1 * (100vw - 390px) / 730), 11px); }
.chart__run { letter-spacing: 0.11em; text-transform: uppercase; color: #A79E8E; }
.chart__date { color: var(--dark-ink-3); }
.chart__key {
  font-family: var(--mono);
  font-size: clamp(9px, calc(9px + 1 * (100vw - 390px) / 730), 10px);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dark-ink-3);
  padding-top: 15px;
}

.deltas { gap: clamp(14px, calc(14px + 2 * (100vw - 390px) / 730), 16px); }
.deltas li {
  display: flex;
  gap: clamp(14px, calc(14px + 4 * (100vw - 390px) / 730), 18px);
  padding-top: clamp(16px, calc(16px + 2 * (100vw - 390px) / 730), 18px);
  border-top: 1px solid var(--dark-rule-2);
}
.deltas__step {
  font-family: var(--mono);
  font-size: clamp(10px, calc(10px + 1 * (100vw - 390px) / 730), 11px);
  color: var(--brass);
  width: clamp(62px, calc(62px + 12 * (100vw - 390px) / 730), 74px);
  flex: none;
  padding-top: 3px;
}
.deltas p { font-size: clamp(15px, calc(15px + 1 * (100vw - 390px) / 730), 16px); line-height: 1.6; color: var(--dark-ink-2); }
.pull--moves em { font-style: italic; color: var(--brass); }

/* --- what we sell -------------------------------------------------------- */

.offer { gap: 9px; padding-top: clamp(18px, calc(18px + 4 * (100vw - 390px) / 730), 22px); border-top: 2px solid var(--ink); }

/* --- the catch ----------------------------------------------------------- */

.qa { gap: 8px; }
.qa + .qa { padding-top: clamp(22px, calc(22px + 4 * (100vw - 390px) / 730), 26px); }
.qa:not(:last-child) { padding-bottom: clamp(22px, calc(22px + 4 * (100vw - 390px) / 730), 26px); border-bottom: 1px solid var(--rule); }

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

.signup {
  display: grid;
  align-items: start;
  column-gap: var(--col-gap);
  row-gap: clamp(18px, calc(18px + 4 * (100vw - 390px) / 730), 22px);
  grid-template-areas: "head" "form" "byline";
  align-content: start;
}
@media (min-width: 900px) {
  .signup {
    grid-template-columns: minmax(0, 560fr) minmax(0, 480fr);
    grid-template-areas: "head form" "byline form";
  }
}
.signup__head { grid-area: head; gap: clamp(18px, calc(18px + 4 * (100vw - 390px) / 730), 22px); }
.signup__byline {
  grid-area: byline;
  gap: 8px;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
}
.signup__byline b { font-weight: 400; color: var(--ink); }

.form {
  grid-area: form;
  gap: 16px;
  padding: clamp(24px, calc(24px + 12 * (100vw - 390px) / 730), 36px)
           clamp(20px, calc(20px + 16 * (100vw - 390px) / 730), 36px);
  background: var(--card);
  border: 1px solid var(--rule);
}
.field { display: flex; flex-direction: column; gap: 7px; }
.field input, .field select {
  height: 50px;
  padding: 0 14px;
  border: 1px solid var(--field);
  border-radius: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: inherit;
  font-size: 16px;
  transition: border-color 120ms ease;
}
.field select { appearance: auto; }
.field input:hover, .field select:hover { border-color: var(--ink-4); }
.field input:focus-visible, .field select:focus-visible { border-color: var(--accent); outline-offset: 1px; }
.field input[aria-invalid="true"], .field select[aria-invalid="true"] { border-color: var(--accent); }
.field__error { font-size: 13px; line-height: 1.45; color: var(--accent); }
.field__error:empty { display: none; }

.decoy {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form__note { font-size: clamp(12px, calc(12px + 1 * (100vw - 390px) / 730), 13px); line-height: 1.55; color: var(--ink-3); }

.form__status { display: none; gap: 8px; }
.form__status[data-open] { display: flex; flex-direction: column; }
.form__status--error {
  padding: 14px 16px;
  background: var(--inset);
  border-left: 2px solid var(--accent);
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink);
}
.form__sent { gap: 12px; }
.form__sent h3 { font-size: clamp(23px, calc(23px + 4 * (100vw - 390px) / 730), 27px); line-height: 1.2; letter-spacing: -0.015em; }

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

.foot {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-block: clamp(28px, calc(28px + 8 * (100vw - 390px) / 730), 36px)
                 clamp(40px, calc(40px + 8 * (100vw - 390px) / 730), 48px);
  border-top: 1px solid var(--rule);
}
.foot__links { display: flex; flex-wrap: wrap; gap: clamp(24px, calc(24px + 12 * (100vw - 390px) / 730), 36px); }
.foot__links a { font-size: 15px; color: var(--ink-2); min-height: 44px; display: inline-flex; align-items: center; }
.foot span { font-size: clamp(14px, calc(14px + 1 * (100vw - 390px) / 730), 15px); color: var(--ink-3); }
@media (min-width: 900px) {
  .foot { flex-direction: row; align-items: center; justify-content: space-between; }
  .foot__links a { min-height: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* --- small utilities used by the markup ---------------------------------- */

.gap-lg { gap: var(--col-gap); }
.gap-head { gap: clamp(16px, calc(16px + 2 * (100vw - 390px) / 730), 18px); }
.label--accent { color: var(--accent); }
.lead--form { font-size: clamp(16px, calc(16px + 3 * (100vw - 390px) / 730), 19px); }
.measure { max-width: 940px; }

.meters__rows { gap: clamp(18px, calc(18px + 4 * (100vw - 390px) / 730), 22px); }
.meters__head > :nth-child(1) { grid-area: name; }
.meters__head > :nth-child(2) { grid-area: track; }
.meters__head > :nth-child(3) { grid-area: value; text-align: right; }

@media (min-width: 900px) { .grid--2-lg { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.chart { margin: 0; }

/* On a phone there is no nav button, and the location sits at the far edge —
   the same shape the phone reference has. */
@media (max-width: 899px) {
  .nav__mark { flex: 1; justify-content: space-between; }
}

.nav__actions { display: flex; align-items: center; gap: clamp(20px, calc(20px + 8 * (100vw - 900px) / 540), 28px); }
.nav__link { font-size: 15px; color: var(--ink-2); }

/* --- products page --------------------------------------------------------- */

.h1--sm { font-size: clamp(34px, calc(34px + 20 * (100vw - 390px) / 730), 54px); }

.prod-intro {
  padding-block: clamp(32px, calc(32px + 40 * (100vw - 390px) / 730), 72px)
                 clamp(8px, calc(8px + 8 * (100vw - 390px) / 730), 16px);
  gap: clamp(14px, calc(14px + 4 * (100vw - 390px) / 730), 18px);
}

@media (min-width: 640px) { .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1180px) { .grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.plans { align-items: stretch; }

.plan { gap: 16px; }
.plan--feature { border-color: var(--ink); box-shadow: 0 20px 40px -28px rgba(22, 19, 15, 0.22); }

.plan__head { gap: 5px; min-height: clamp(70px, calc(70px + 16 * (100vw - 390px) / 730), 86px); }
.plan__price { display: flex; align-items: flex-end; gap: 8px; }
.plan__price b {
  font-size: clamp(28px, calc(28px + 8 * (100vw - 390px) / 730), 34px);
  line-height: 1;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.plan__price span { font-size: 12px; color: var(--ink-3); padding-bottom: 4px; }

.plan__points { gap: 10px; }
.plan__points li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: clamp(13px, calc(13px + 1 * (100vw - 390px) / 730), 14px);
  line-height: 1.5;
  color: var(--ink-2);
}
.plan__points li::before { content: "\2014"; color: var(--ink-4); font-size: 13px; }

.plan__addon { gap: 6px; }

.plan__cta { margin-top: auto; width: 100%; min-height: 50px; font-size: 15px; padding: 0 20px; }
.plan__foot { text-align: center; }