/* burofax.onmax.me — "registro oficial". Tokens first; class conventions are listed in src/site/layout.tsx.
   After editing, run `heavy node src/site/build-assets.mjs` so the HTML picks up the new ?v= hash. */

:root {
  /* palette (OKLCH, light only) */
  --paper: oklch(0.972 0.006 240);
  --paper-2: oklch(0.94 0.008 240);
  --sheet: oklch(0.993 0.002 240);
  --ink: oklch(0.24 0.045 262);
  --ink-2: oklch(0.45 0.03 262);
  --rule: oklch(0.84 0.012 250);
  --rule-strong: oklch(0.72 0.016 255);
  --stamp: oklch(0.55 0.19 28);
  --guilloche: oklch(0.58 0.07 195);
  --ok: oklch(0.56 0.12 150);
  --warn: oklch(0.7 0.14 75);
  /* text-safe variants (≥4.5:1 on paper) */
  --guilloche-ink: oklch(0.45 0.07 195);
  --ok-ink: oklch(0.44 0.1 150);
  --warn-ink: oklch(0.47 0.1 65);
  --stamp-ink: oklch(0.49 0.18 28);
  /* on dark (ink) surfaces */
  --on-ink: oklch(0.972 0.006 240);
  --on-ink-2: oklch(0.8 0.02 255);
  --rule-on-ink: oklch(0.4 0.04 262);
  /* shader + poster: ink on paper at low contrast */
  --halftone: oklch(0.905 0.012 248);

  /* type */
  --serif: "Source Serif 4", "Source Serif Fallback", "Source Serif Fallback 2", Georgia, serif;
  --sans: "Public Sans", "Public Sans Fallback", Arial, sans-serif;
  --mono: "IBM Plex Mono", "Plex Mono Fallback", ui-monospace, monospace;
  --step--2: 0.75rem;
  --step--1: 0.875rem;
  --step-0: 1rem;
  --step-1: 1.1875rem;
  --step-2: 1.5rem;
  --step-3: clamp(1.75rem, 1.3rem + 1.6vw, 2.375rem);
  --step-4: clamp(2.125rem, 1.4rem + 3vw, 3.5rem);
  --step-5: clamp(2.5rem, 1.5rem + 4.4vw, 4.75rem);
  --numeral: clamp(4.5rem, 3rem + 7vw, 9rem);

  /* space + shape */
  --gutter: clamp(1.25rem, 0.8rem + 2vw, 2.5rem);
  --section: clamp(4rem, 2.5rem + 6vw, 8rem);
  --radius: 3px;
  --wrap: 74rem;
  --read: 42.5rem;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* ---------- base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color-scheme: light;
  scroll-padding-top: 1rem;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--step-0);
  line-height: 1.55;
  font-weight: 400;
  overflow-x: clip;
}
img,
svg {
  display: block;
  max-width: 100%;
}
h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.15;
  text-wrap: balance;
}
p,
ul,
ol,
dl,
figure {
  margin: 0;
}
p,
li,
dd {
  text-wrap: pretty;
}
a {
  color: inherit;
  text-decoration-thickness: from-font;
  text-underline-position: from-font;
  text-underline-offset: 0.15em;
}
a:hover {
  text-decoration-color: var(--stamp);
}
:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
  border-radius: 1px;
}
::selection {
  background: oklch(0.86 0.07 28);
  color: var(--ink);
}
main:focus {
  outline: none;
}
.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 10;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: var(--on-ink);
  text-decoration: none;
}
.skip:focus {
  top: 1rem;
}

/* ---------- layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.wrap--read {
  max-width: calc(var(--read) + 2 * var(--gutter));
}
.wrap--form {
  max-width: calc(35rem + 2 * var(--gutter));
}
.section {
  padding-block: var(--section) 0;
}
.section:last-child {
  padding-bottom: var(--section);
}
.section__title {
  font-size: var(--step-3);
  letter-spacing: -0.015em;
  max-width: 24ch;
}
.section__intro {
  margin-top: 1rem;
  max-width: 60ch;
  color: var(--ink-2);
  font-size: var(--step-1);
}
.stack > * + * {
  margin-top: var(--stack, 1rem);
}

/* ---------- text helpers ---------- */
.eyebrow {
  font-family: var(--mono);
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 0.55em;
  height: 0.55em;
  margin-right: 0.6em;
  border-radius: 50%;
  background: var(--stamp);
  vertical-align: 0.08em;
}
.lede {
  font-size: var(--step-1);
  color: var(--ink-2);
  max-width: 60ch;
}
.muted {
  color: var(--ink-2);
}
.num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}
.fineprint {
  margin-top: 1rem;
  font-size: var(--step--1);
  color: var(--ink-2);
}

/* ---------- header ---------- */
.site-header {
  border-bottom: 1px solid var(--rule);
}
.site-header__row {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 4rem;
}
.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.15rem;
  margin-right: auto;
  text-decoration: none;
  white-space: nowrap;
}
.wordmark__mark {
  width: 1.25rem;
  height: 1.25rem;
  margin-right: 0.45rem;
  align-self: center;
  color: var(--stamp);
}
.wordmark__name {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}
.wordmark__domain {
  font-family: var(--mono);
  font-size: var(--step--1);
  color: var(--ink-2);
}
.site-nav ul {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  padding: 0;
}
.site-nav a {
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  padding-block: 0.5rem;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-color: var(--stamp);
}
@media (max-width: 52rem) {
  .site-nav {
    display: none;
  }
}
.lang {
  position: relative;
}
.lang summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  place-items: center;
  min-width: 2.75rem;
  min-height: 2.75rem;
  font-family: var(--mono);
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.06em;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}
.lang summary::-webkit-details-marker {
  display: none;
}
.lang[open] summary,
.lang summary:hover {
  border-color: var(--ink);
}
.lang__list {
  position: absolute;
  right: 0;
  top: calc(100% + 0.4rem);
  z-index: 5;
  min-width: 11rem;
  padding: 0.35rem;
  list-style: none;
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px -12px oklch(0.24 0.045 262 / 0.25);
}
.lang__list a {
  display: block;
  padding: 0.55rem 0.75rem;
  text-decoration: none;
}
.lang__list a:hover {
  background: var(--paper-2);
}
.lang__list a[aria-current="true"] {
  font-weight: 600;
}

/* ---------- language banner ---------- */
.lang-banner {
  background: var(--ink);
  color: var(--on-ink);
  font-size: var(--step--1);
}
.lang-banner .wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 2.75rem;
}
.lang-banner p {
  margin-right: auto;
}
.lang-banner a {
  font-weight: 600;
}
.lang-banner button {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  margin-right: -0.75rem;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  font-size: 1.25rem;
  cursor: pointer;
}
.lang-banner :focus-visible {
  outline-color: var(--on-ink);
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3rem;
  padding: 0.75rem 1.35rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font: inherit;
  font-weight: 600;
  font-size: var(--step-0);
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 0.15s var(--ease), border-color 0.15s var(--ease), color 0.15s var(--ease), transform 0.15s var(--ease);
}
.btn:active {
  transform: translateY(1px);
}
.btn--primary {
  background: var(--ink);
  color: var(--on-ink);
}
.btn--primary:hover {
  background: oklch(0.32 0.06 262);
}
.btn--ghost {
  border-color: var(--rule-strong);
  color: var(--ink);
  background: transparent;
}
.btn--ghost:hover {
  border-color: var(--ink);
  background: var(--sheet);
}
.btn--paper {
  background: var(--on-ink);
  color: var(--ink);
}
.btn--paper:hover {
  background: var(--sheet);
}
.btn--ghost-dark {
  border-color: var(--rule-on-ink);
  color: var(--on-ink);
}
.btn--ghost-dark:hover {
  border-color: var(--on-ink);
}
.btn--stamp {
  background: var(--stamp-ink);
  color: var(--on-ink);
}
.btn--stamp:hover {
  background: var(--stamp);
}
.btn--block {
  width: 100%;
}
.btn[disabled],
.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
}
.option--dark :focus-visible,
.cta-band :focus-visible,
.ctas--dark :focus-visible {
  outline-color: var(--on-ink);
}

.ctas {
  margin-top: 2rem;
}
.ctas__row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.ctas__note {
  margin-top: 0.85rem;
  font-size: var(--step--1);
  color: var(--ink-2);
  max-width: 46ch;
}
.ctas--dark .btn--primary {
  background: var(--on-ink);
  color: var(--ink);
}
.ctas--dark .btn--ghost {
  border-color: var(--rule-on-ink);
  color: var(--on-ink);
}
.ctas--dark .btn--ghost:hover {
  background: transparent;
  border-color: var(--on-ink);
}
.ctas--dark .ctas__note {
  color: var(--on-ink-2);
}
@media (max-width: 30rem) {
  .ctas__row .btn {
    flex: 1 1 100%;
  }
}

/* ---------- hero ---------- */
.hero {
  padding-block: clamp(2.5rem, 1rem + 5vw, 5.5rem) clamp(3rem, 1rem + 6vw, 6rem);
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
}
.hero__grid {
  display: grid;
  gap: clamp(2.5rem, 1rem + 4vw, 4rem);
  align-items: center;
}
@media (min-width: 60rem) {
  .hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
}
.hero__title {
  margin-top: 1.25rem;
  font-size: var(--step-5);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -0.02em;
  max-width: 14ch;
}
.hero__lede {
  margin-top: 1.5rem;
  font-size: var(--step-1);
  color: var(--ink-2);
  max-width: 52ch;
}
.hero__lede p + p {
  margin-top: 0.75rem;
}
.price-lines {
  margin-top: 2.25rem;
  border-top: 1px solid var(--rule);
  max-width: 34rem;
}
.price-lines__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding-block: 0.7rem;
  border-bottom: 1px solid var(--rule);
}
.price-lines dt {
  font-weight: 500;
}
.price-lines dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  white-space: nowrap;
}
.price-lines dd .num {
  font-size: var(--step-1);
  font-weight: 500;
}
.price-lines__unit {
  font-size: var(--step--1);
  color: var(--ink-2);
}

/* art column: shader backdrop + sheet */
.hero__art {
  position: relative;
  display: grid;
  place-items: center;
  padding: clamp(1.5rem, 1rem + 3vw, 3.5rem) clamp(0.5rem, 3vw, 3rem);
  isolation: isolate;
}
.hero__shader {
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: 2px;
  /* static poster: SVG noise + halftone dots, faded at the edges */
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 1px 1px, var(--halftone) 0.9px, transparent 1.3px),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .2 0 0 0 0 .24 0 0 0 0 .36 0 0 0 .09 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 5px 5px, 160px 160px;
  -webkit-mask-image: radial-gradient(ellipse 70% 72% at 50% 50%, #000 55%, transparent 100%);
  mask-image: radial-gradient(ellipse 70% 72% at 50% 50%, #000 55%, transparent 100%);
}
.hero__shader canvas {
  opacity: 0;
  transition: opacity 1.2s var(--ease);
}
.hero__shader[data-shader-live] canvas {
  opacity: 1;
}
@media (prefers-reduced-motion: reduce) {
  .hero__shader canvas {
    display: none;
  }
}

/* ---------- the burofax sheet ---------- */
.sheet-figure {
  position: relative;
  width: min(100%, 30rem);
  filter: drop-shadow(0 1px 1px oklch(0.24 0.045 262 / 0.08)) drop-shadow(0 18px 28px oklch(0.24 0.045 262 / 0.12));
  transform: rotate(-1.2deg);
}
.sheet {
  --holes: 15px;
  position: relative;
  aspect-ratio: 210 / 297;
  container-type: inline-size;
  background: var(--sheet);
  border-radius: 1px;
  /* perforated top edge: real holes cut by a repeating radial mask */
  -webkit-mask: radial-gradient(circle 3.2px at 50% 10px, transparent 3px, #000 3.6px) 0 0 / var(--holes) 100% repeat-x;
  mask: radial-gradient(circle 3.2px at 50% 10px, transparent 3px, #000 3.6px) 0 0 / var(--holes) 100% repeat-x;
}
.sheet::before {
  /* tear line under the holes */
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 21px;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--rule) 0 4px, transparent 4px 8px);
}
.sheet__inner {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  padding: 13cqi 10cqi 7cqi;
  font-family: var(--serif);
  font-size: 3.15cqi;
  line-height: 1.45;
  color: var(--ink);
}
.sheet__head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6cqi;
  font-family: var(--sans);
  font-size: 2.75cqi;
  line-height: 1.4;
}
.sheet__label {
  display: block;
  margin-bottom: 0.6cqi;
  font-family: var(--mono);
  font-size: 2.2cqi;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.sheet__party {
  padding-top: 1.4cqi;
  border-top: 1px solid var(--rule);
}
.sheet__date {
  margin-top: 7cqi;
  text-align: end;
  color: var(--ink-2);
}
.sheet__subject {
  margin-top: 4cqi;
  font-weight: 600;
}
.sheet__body {
  margin-top: 3cqi;
}
.sheet__body p + p {
  margin-top: 2.2cqi;
}
.sheet__sign {
  font-style: normal;
  font-weight: 600;
}
.guilloche {
  margin-top: auto;
  color: var(--guilloche);
}
.guilloche__band {
  width: 100%;
  height: 6cqi;
}
.guilloche__meta {
  display: flex;
  justify-content: space-between;
  gap: 2cqi;
  margin-top: 1.4cqi;
  font-family: var(--mono);
  font-size: 2cqi;
  letter-spacing: 0.04em;
  white-space: nowrap;
  text-transform: uppercase;
  color: var(--guilloche-ink);
}
.postmark {
  position: absolute;
  width: 56%;
  right: -15%;
  top: -4%;
  color: var(--stamp);
  opacity: 0.88;
  mix-blend-mode: multiply;
  transform: rotate(-14deg);
  pointer-events: none;
}
.postmark text {
  font-family: var(--mono);
  font-weight: 500;
}
.postmark__day {
  font-family: var(--serif) !important;
  font-weight: 700 !important;
}
@media (max-width: 40rem) {
  .postmark {
    right: -5%;
    top: -7%;
    width: 50%;
  }
}

/* ---------- steps: giant numerals on hairline rules ---------- */
.steps {
  list-style: none;
  padding: 0;
  margin-top: clamp(2rem, 1rem + 3vw, 3.5rem);
  display: grid;
  gap: 0 var(--gutter);
}
@media (min-width: 48rem) {
  .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.steps__item {
  border-top: 1px solid var(--ink);
  padding-block: 0.5rem 2.5rem;
  display: grid;
  grid-template-rows: auto auto 1fr;
}
.steps__num {
  font-family: var(--serif);
  font-size: var(--numeral);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.04em;
  font-variant-numeric: lining-nums tabular-nums;
  color: var(--ink);
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--rule);
}
.steps__title {
  margin-top: 1.25rem;
  font-size: var(--step-2);
  letter-spacing: -0.01em;
}
.steps__text {
  margin-top: 0.6rem;
  color: var(--ink-2);
  max-width: 38ch;
}

/* ---------- options (dark = Correos, light = Notificados) ---------- */
.options {
  margin-top: clamp(2rem, 1rem + 3vw, 3rem);
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 52rem) {
  .options {
    grid-template-columns: 1fr 1fr;
  }
}
.option {
  display: flex;
  flex-direction: column;
  padding: clamp(1.5rem, 1rem + 2vw, 2.5rem);
  border-radius: var(--radius);
  border: 1px solid var(--rule);
  background: var(--sheet);
}
.option--dark {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--on-ink);
}
.option__operator {
  font-family: var(--mono);
  font-size: var(--step--1);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.option--dark .option__operator {
  color: var(--on-ink-2);
}
.option__name {
  margin-top: 0.75rem;
  font-size: var(--step-3);
  letter-spacing: -0.015em;
}
.option__price {
  margin-top: 1.25rem;
  font-size: clamp(2.25rem, 1.6rem + 2.4vw, 3.25rem);
  line-height: 1;
}
.option__price .num {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.02em;
  font-variant-numeric: lining-nums tabular-nums;
}
.option__terms {
  margin-top: 0.6rem;
  font-size: var(--step--1);
  color: var(--ink-2);
}
.option--dark .option__terms {
  color: var(--on-ink-2);
}
.option__inc {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.option--dark .option__inc {
  border-color: var(--rule-on-ink);
}
.option__list {
  list-style: none;
  padding: 0;
  margin-top: 0.75rem;
}
.option__list li {
  position: relative;
  padding: 0.45rem 0 0.45rem 1.6rem;
}
.option__list li::before {
  content: "";
  position: absolute;
  left: 0.1rem;
  top: 0.95rem;
  width: 0.7rem;
  height: 0.38rem;
  border-left: 1.5px solid var(--guilloche-ink);
  border-bottom: 1.5px solid var(--guilloche-ink);
  transform: rotate(-45deg);
}
.option--dark .option__list li::before {
  border-color: var(--on-ink);
}
.option__note {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  font-size: var(--step--1);
  background: var(--paper-2);
  border-left: 2px solid var(--stamp);
}
.option--dark .option__note {
  background: oklch(0.3 0.05 262);
}
.option__cta {
  margin-top: auto;
  padding-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- facts / features ---------- */
.facts {
  margin-top: clamp(2rem, 1rem + 3vw, 3rem);
  display: grid;
  gap: 0 var(--gutter);
  list-style: none;
  padding: 0;
}
@media (min-width: 48rem) {
  .facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (min-width: 64rem) {
  .facts--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.facts li {
  padding-block: 1.25rem 1.5rem;
  border-top: 1px solid var(--rule);
}
.facts h3 {
  font-size: var(--step-1);
  letter-spacing: -0.005em;
}
.facts p {
  margin-top: 0.4rem;
  color: var(--ink-2);
}

/* ---------- FAQ ---------- */
.faq {
  margin-top: 2rem;
  border-top: 1px solid var(--ink);
}
.faq__item {
  border-bottom: 1px solid var(--rule);
}
.faq__q {
  list-style: none;
  cursor: pointer;
  position: relative;
  padding: 1.15rem 2.5rem 1.15rem 0;
  font-family: var(--serif);
  font-size: var(--step-1);
  font-weight: 600;
  line-height: 1.3;
}
.faq__q::-webkit-details-marker {
  display: none;
}
.faq__q::after {
  content: "";
  position: absolute;
  right: 0.35rem;
  top: 50%;
  width: 0.6rem;
  height: 0.6rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.2s var(--ease);
}
.faq__item[open] .faq__q::after {
  transform: translateY(-30%) rotate(-135deg);
}
.faq__a {
  padding-bottom: 1.4rem;
  color: var(--ink-2);
  max-width: 62ch;
}
.faq__a p + p {
  margin-top: 0.75rem;
}

/* ---------- articles (Read mode) ---------- */
.article__head {
  padding-block: clamp(2.5rem, 1rem + 5vw, 5rem) clamp(2rem, 1rem + 3vw, 3rem);
  border-bottom: 1px solid var(--rule);
}
.article__title,
.page-title {
  margin-top: 1rem;
  font-size: var(--step-4);
  letter-spacing: -0.02em;
  line-height: 1.1;
  max-width: 20ch;
}
.article__lede {
  margin-top: 1.25rem;
  font-size: var(--step-1);
  color: var(--ink-2);
}
.article__meta {
  margin-top: 1.25rem;
  font-family: var(--mono);
  font-size: var(--step--1);
  color: var(--ink-2);
}
.prose {
  padding-block: clamp(2rem, 1rem + 3vw, 3.5rem) var(--section);
}
.prose > * + * {
  margin-top: 1.1rem;
}
.prose h2 {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  font-size: var(--step-3);
  letter-spacing: -0.015em;
}
.prose h3 {
  margin-top: 2rem;
  font-size: var(--step-2);
  letter-spacing: -0.01em;
}
.prose h2 + *,
.prose h3 + * {
  margin-top: 0.75rem;
}
.prose ul,
.prose ol {
  padding-left: 1.25rem;
}
.prose li + li {
  margin-top: 0.4rem;
}
.prose li::marker {
  color: var(--ink-2);
}
.prose strong {
  font-weight: 600;
}
.prose .placeholder {
  font-family: var(--mono);
  font-size: 0.9em;
  padding: 0.05em 0.35em;
  background: oklch(0.93 0.05 75);
  border: 1px dashed var(--warn-ink);
  border-radius: 2px;
}
.definition {
  padding: 1.25rem 1.5rem;
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--stamp);
  font-family: var(--serif);
  font-size: var(--step-1);
  line-height: 1.5;
}
.callout {
  padding: 1rem 1.25rem;
  background: var(--paper-2);
  border-radius: var(--radius);
}
.prose .wide {
  margin-inline: calc(-1 * min(var(--gutter), 3vw));
}

/* letter sample inside articles */
.letter {
  padding: clamp(1.25rem, 1rem + 2vw, 2.25rem);
  background: var(--sheet);
  border: 1px solid var(--rule);
  font-family: var(--serif);
  font-size: 1rem;
  line-height: 1.6;
}
.letter p + p {
  margin-top: 0.75rem;
}
.bilingual {
  display: grid;
  gap: 1rem;
}
@media (min-width: 44rem) {
  .bilingual {
    grid-template-columns: 1fr 1fr;
  }
}
.bilingual .letter {
  font-size: 0.9375rem;
}

/* ---------- tables ---------- */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-top: 1px solid var(--ink);
}
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  line-height: 1.45;
}
.table caption {
  caption-side: bottom;
  padding-top: 0.75rem;
  text-align: start;
  font-size: var(--step--1);
  color: var(--ink-2);
}
.table th,
.table td {
  padding: 0.75rem 0.75rem 0.75rem 0;
  border-bottom: 1px solid var(--rule);
  text-align: start;
  vertical-align: top;
}
.table thead th {
  font-family: var(--mono);
  font-size: var(--step--2);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-2);
  white-space: nowrap;
}
.table tbody th {
  font-weight: 600;
  min-width: 11rem;
}
.table .num {
  text-align: end;
  white-space: nowrap;
}
.table tr.is-ours th,
.table tr.is-ours td {
  background: var(--sheet);
}
.table tr.is-ours th {
  box-shadow: inset 3px 0 0 var(--stamp);
  padding-left: 0.75rem;
}
.table tfoot td,
.table tfoot th {
  font-weight: 600;
  border-bottom: 1px solid var(--ink);
}

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--ink);
  color: var(--on-ink);
  padding-block: clamp(3rem, 2rem + 4vw, 5rem);
}
.cta-band__grid {
  display: grid;
  gap: 1.5rem;
  align-items: end;
}
@media (min-width: 56rem) {
  .cta-band__grid {
    grid-template-columns: 1.1fr 1fr;
  }
}
.cta-band__title {
  font-size: var(--step-3);
  letter-spacing: -0.015em;
  max-width: 20ch;
}
.cta-band__text {
  margin-top: 0.75rem;
  color: var(--on-ink-2);
  max-width: 52ch;
}
.cta-band .ctas {
  margin-top: 0;
}

/* ---------- forms (also used by /r) ---------- */
.page-head {
  padding-block: clamp(2rem, 1rem + 4vw, 4rem) 1.5rem;
}
.page-head .lede {
  margin-top: 1rem;
}
.form {
  display: grid;
  gap: 1.5rem;
  padding-bottom: var(--section);
}
.form fieldset {
  margin: 0;
  padding: 0;
  border: 0;
  min-width: 0;
  display: grid;
  gap: 1.25rem;
}
.form legend {
  width: 100%;
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--ink);
  font-family: var(--serif);
  font-size: var(--step-2);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.form legend + * {
  margin-top: 0.25rem;
}
.form .subfieldset legend {
  padding-top: 0.75rem;
  border-top: 1px solid var(--rule);
  font-size: var(--step-1);
}
/* Honeypot for bots: visually hidden, out of the tab order. */
.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.field {
  display: grid;
  gap: 0.4rem;
}
.field--row {
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 36rem) {
  .field--row {
    grid-template-columns: 1fr 1fr;
  }
}
.field__label {
  font-weight: 600;
  font-size: 0.9375rem;
}
.field__opt {
  font-weight: 400;
  color: var(--ink-2);
}
.field__hint {
  font-size: var(--step--1);
  color: var(--ink-2);
}
.field__error {
  font-size: var(--step--1);
  font-weight: 500;
  color: var(--stamp-ink);
}
.form input:not([type="checkbox"]):not([type="radio"]),
.form textarea,
.form select {
  width: 100%;
  min-height: 3rem;
  padding: 0.7rem 0.85rem;
  font: inherit;
  font-size: 1rem; /* ≥16px: no iOS zoom */
  color: var(--ink);
  background: var(--sheet);
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  transition: border-color 0.15s var(--ease), box-shadow 0.15s var(--ease);
}
.form textarea {
  min-height: 18rem;
  resize: vertical;
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.6;
}
.form input:hover,
.form textarea:hover,
.form select:hover {
  border-color: var(--ink-2);
}
.form input:focus-visible,
.form textarea:focus-visible,
.form select:focus-visible {
  outline: none;
  border-color: var(--ink);
  box-shadow: 0 0 0 3px oklch(0.24 0.045 262 / 0.18);
}
.form [aria-invalid="true"] {
  border-color: var(--stamp-ink) !important;
}
.form ::placeholder {
  color: oklch(0.6 0.02 255);
}
.choice {
  display: grid;
  gap: 0.75rem;
}
@media (min-width: 36rem) {
  .choice {
    grid-template-columns: 1fr 1fr;
  }
}
.choice label {
  position: relative;
  display: grid;
  gap: 0.2rem;
  padding: 1rem 1rem 1rem 2.85rem;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  background: var(--sheet);
  cursor: pointer;
}
.choice input {
  position: absolute;
  left: 1rem;
  top: 1.15rem;
  width: 1.1rem;
  height: 1.1rem;
  margin: 0;
  accent-color: var(--ink);
}
.choice label:has(input:checked) {
  border-color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--ink);
}
.choice label:has(input:focus-visible) {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}
.choice__name {
  font-weight: 600;
}
.choice__meta {
  font-size: var(--step--1);
  color: var(--ink-2);
}
.check {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem;
  align-items: start;
  font-size: 0.9375rem;
  cursor: pointer;
}
.check input {
  width: 1.15rem;
  height: 1.15rem;
  margin: 0.2rem 0 0;
  accent-color: var(--ink);
}
.form__actions {
  display: grid;
  gap: 0.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
}
.form__actions .btn {
  justify-self: start;
}

/* ---------- app-page helpers (/r, /s) ---------- */
.panel {
  padding: clamp(1.25rem, 1rem + 1.5vw, 2rem);
  background: var(--paper-2);
  border-radius: var(--radius);
}
.notice {
  padding: 0.9rem 1.1rem;
  border: 1px solid var(--rule);
  border-left-width: 3px;
  border-radius: var(--radius);
  background: var(--sheet);
}
.notice--ok {
  border-left-color: var(--ok);
}
.notice--warn {
  border-left-color: var(--warn);
}
.notice--error {
  border-left-color: var(--stamp);
}
.kv {
  border-top: 1px solid var(--ink);
}
.kv > div {
  display: grid;
  grid-template-columns: minmax(8rem, 1fr) 2fr;
  gap: 1rem;
  padding-block: 0.7rem;
  border-bottom: 1px solid var(--rule);
}
.kv dt {
  color: var(--ink-2);
  font-size: 0.9375rem;
}
.kv dd {
  margin: 0;
  overflow-wrap: anywhere;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.15rem 0.55rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: var(--step--2);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}
.badge--ok {
  color: var(--ok-ink);
}
.badge--warn {
  color: var(--warn-ink);
}
.badge--stamp {
  color: var(--stamp-ink);
}
.badge--muted {
  color: var(--ink-2);
}

/* timeline: ruled time margin with postmark-style timestamps */
.timeline {
  list-style: none;
  padding: 0;
  border-top: 1px solid var(--ink);
}
.timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 1.25rem;
  padding-block: 1.1rem;
  border-bottom: 1px solid var(--rule);
}
.timeline__item::before {
  /* tick on the ruled margin */
  content: "";
  position: absolute;
  left: calc(7.5rem + 0.6rem);
  top: 1.45rem;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  border: 1.5px solid var(--rule-strong);
  background: var(--paper);
  transform: translateX(-50%);
}
.timeline__item::after {
  content: "";
  position: absolute;
  left: calc(7.5rem + 0.6rem);
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--rule);
  z-index: -1;
}
.timeline__item[data-state="done"]::before {
  background: var(--guilloche);
  border-color: var(--guilloche);
}
.timeline__item[data-state="current"]::before {
  background: var(--stamp);
  border-color: var(--stamp);
  box-shadow: 0 0 0 4px oklch(0.55 0.19 28 / 0.15);
}
.timeline__item[data-state="problem"]::before {
  background: var(--warn);
  border-color: var(--warn);
}
.timeline__time {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--step--1);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.timeline__item[data-state="current"] .timeline__time {
  color: var(--stamp-ink);
}
.timeline__body {
  padding-left: 1rem;
}
.timeline__title {
  font-size: var(--step-1);
}
.timeline__body p {
  margin-top: 0.25rem;
  color: var(--ink-2);
}
.timeline__item[data-state="todo"] .timeline__title {
  color: var(--ink-2);
  font-weight: 500;
}
@media (max-width: 30rem) {
  .timeline__item {
    grid-template-columns: 5.5rem 1fr;
    gap: 0.75rem;
  }
  .timeline__item::before,
  .timeline__item::after {
    left: calc(5.5rem + 0.4rem);
  }
}

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--ink);
  padding-block: 3rem 2rem;
  font-size: 0.9375rem;
}
.site-footer__disclaimer {
  max-width: 70ch;
  color: var(--ink-2);
}
.site-footer__cols {
  display: grid;
  gap: 2rem;
  margin-top: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
}
.site-footer__h {
  font-family: var(--mono);
  font-size: var(--step--2);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.site-footer ul {
  list-style: none;
  padding: 0;
  margin-top: 0.75rem;
}
.site-footer li + li {
  margin-top: 0.35rem;
}
.site-footer a {
  text-decoration: none;
  display: inline-block;
  padding-block: 0.2rem;
}
.site-footer a:hover {
  text-decoration: underline;
  text-decoration-color: var(--stamp);
}
.site-footer__base {
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  font-size: var(--step--1);
  color: var(--ink-2);
}

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

/* form details */
.form textarea[rows="3"] {
  min-height: 6.5rem;
  font-family: var(--sans);
  font-size: 1rem;
}
.page-head .notice {
  margin-top: 1.25rem;
}
.timeline {
  position: relative;
  isolation: isolate;
}

/* breadcrumbs */
.crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  list-style: none;
  padding: 0;
  margin-bottom: 1.5rem;
  font-size: var(--step--1);
  color: var(--ink-2);
}
.crumbs li + li::before {
  content: "/";
  margin-right: 0.35rem;
  color: var(--rule-strong);
}
.crumbs a {
  text-decoration-color: var(--rule-strong);
}
.related .facts h3 a {
  text-decoration-thickness: 1px;
}

/* mobile refinements */
.option__cta .btn {
  flex: 1 1 auto;
}
@media (max-width: 30rem) {
  .hero__lede {
    font-size: 1.0625rem;
  }
  .eyebrow {
    letter-spacing: 0.03em;
  }
  .price-lines__row {
    flex-wrap: wrap;
    gap: 0.25rem 1rem;
  }
}

/* comparison tables: option column stays visible while scrolling sideways */
.table--cmp tbody th,
.table--cmp thead th:first-child {
  position: sticky;
  left: 0;
  z-index: 1;
  background: var(--paper);
}
.table--cmp tr.is-ours th {
  background: var(--sheet);
}
@media (max-width: 40rem) {
  .table--cmp tbody th {
    min-width: 8.5rem;
    max-width: 9.5rem;
  }
}
.table--cmp .num {
  text-align: start;
  padding-right: 1.25rem;
}