/* Interlatin — shared stylesheet
   Design system: high-contrast black/white canvas, single Sunlight Yellow accent,
   square geometry, one monolithic geometric sans, tight display line-heights. */

:root {
  --primary: #ffed00;
  --primary-deep: #e6d200;
  --on-primary: #000000;
  --ink: #000000;
  --body: #222222;
  --charcoal: #333333;
  --mute: #666666;
  --ash: #8a8a8a;
  --stone: #c4c4c4;
  --on-dark: #ffffff;
  --on-dark-mute: rgba(255, 255, 255, 0.72);
  --canvas: #ffffff;
  --surface-soft: #f7f7f7;
  --surface-card: #ffffff;
  --surface-dark: #000000;
  --surface-deep: #111111;
  --hairline: #f2f2f2;
  --hairline-strong: #000000;
  --divider-dark: rgba(255, 255, 255, 0.16);
  --error: #be6464;
  --warning: #f0ad4e;
  --success: #8dc572;
  --info: #337ab7;

  --r-none: 0px;
  --r-xs: 2px;
  --r-sm: 3px;
  --r-md: 4px;
  --r-pill: 46px;
  --r-full: 9999px;

  --s-xxs: 4px;
  --s-xs: 8px;
  --s-sm: 12px;
  --s-md: 16px;
  --s-lg: 20px;
  --s-xl: 24px;
  --s-xxl: 32px;
  --s-xxxl: 40px;
  --s-section: 80px;

  --font: "Inter Tight", "Manrope", "Segoe UI", -apple-system, BlinkMacSystemFont,
    "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}

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

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

body {
  margin: 0;
  background: var(--canvas);
  color: var(--body);
  font-family: var(--font);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.4;
}

img { max-width: 100%; display: block; }

a { color: inherit; }

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: 0;
  color: var(--ink);
  margin: 0 0 var(--s-md) 0;
}

h1 { font-size: 56px; }
h2 { font-size: 40px; }
h3 { font-size: 24px; }
h4 { font-size: 20px; }

p { margin: 0 0 var(--s-md) 0; }

.lead {
  font-size: 19.2px;
  font-weight: 600;
  line-height: 1.3;
}

.overline {
  font-size: 10px;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  display: block;
  margin-bottom: var(--s-sm);
}

.small { font-size: 14px; line-height: 1.57; }
.caption { font-size: 12px; line-height: 1.4; color: var(--charcoal); }

.wrap {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--s-xl);
}

.wrap-narrow {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--s-xl);
}

/* ---------- Skip link ---------- */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--primary);
  color: var(--on-primary);
  padding: var(--s-sm) var(--s-md);
  font-weight: 700;
  z-index: 100;
}
.skip:focus { left: 0; }

/* ---------- Header / nav ---------- */
.nav-bar {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--s-xl);
  min-height: 60px;
  display: flex;
  align-items: center;
  gap: var(--s-xl);
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--s-sm);
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 20px;
  line-height: 1;
  padding: var(--s-sm) 0;
}

.brand img { height: 32px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--s-lg);
  flex-wrap: wrap;
  margin-left: auto;
  list-style: none;
  padding: 0;
}

.nav-links a {
  font-size: 14.4px;
  font-weight: 700;
  letter-spacing: 0.144px;
  text-decoration: none;
  color: var(--mute);
  padding: var(--s-sm) 0;
  display: inline-block;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover { color: var(--ink); }
.nav-links a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--primary);
}

.nav-cta {
  background: var(--primary);
  color: var(--on-primary) !important;
  border-radius: var(--r-xs);
  padding: 10px 18px !important;
  border-bottom: none !important;
}
.nav-cta:hover { background: var(--primary-deep); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-size: 14.4px;
  font-weight: 700;
  letter-spacing: 0.144px;
  line-height: 1;
  padding: 16px 24px;
  border-radius: var(--r-xs);
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: var(--font);
}

.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-primary:hover { background: var(--primary-deep); }

.btn-dark { background: var(--surface-dark); color: var(--on-dark); }
.btn-dark:hover { background: var(--surface-deep); }

.btn-outline-dark {
  background: var(--canvas);
  color: var(--ink);
  border-color: var(--hairline-strong);
}
.btn-outline-dark:hover { background: var(--surface-soft); }

.btn-outline-light {
  background: transparent;
  color: var(--on-dark);
  border-color: var(--on-dark);
}
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.1); }

.btn-row {
  display: flex;
  gap: var(--s-sm);
  flex-wrap: wrap;
  margin-top: var(--s-xl);
}

/* ---------- Pills ---------- */
.pill-row {
  display: flex;
  gap: var(--s-xs);
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  margin: 0;
}

.pill {
  display: inline-block;
  background: var(--canvas);
  color: var(--ink);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-pill);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.13px;
  padding: 9px 16px;
  text-decoration: none;
}
.pill:hover { background: var(--primary); }

.pill-dark {
  background: transparent;
  color: var(--on-dark);
  border-color: var(--on-dark-mute);
}
.pill-dark:hover { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }

/* ---------- Bands ---------- */
.band { padding: var(--s-section) 0; }
.band-soft { background: var(--surface-soft); }
.band-dark { background: var(--surface-dark); color: var(--on-dark-mute); }
.band-dark h1, .band-dark h2, .band-dark h3, .band-dark h4 { color: var(--on-dark); }
.band-dark .overline { color: var(--primary); }
.band-dark a { color: var(--on-dark); }

.band-yellow { background: var(--primary); color: var(--on-primary); }
.band-yellow h2, .band-yellow h3 { color: var(--on-primary); }

/* ---------- Hero ---------- */
.hero {
  background: var(--surface-dark);
  color: var(--on-dark-mute);
  padding: var(--s-section) 0;
  border-bottom: 6px solid var(--primary);
}

.hero h1 { color: var(--on-dark); max-width: 16ch; }
.hero .overline { color: var(--primary); }
.hero .lead { color: var(--on-dark-mute); max-width: 62ch; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: var(--s-xxxl);
  align-items: start;
}

.hero-stats {
  border-top: 1px solid var(--divider-dark);
}

.hero-stat {
  border-bottom: 1px solid var(--divider-dark);
  padding: var(--s-lg) 0;
  display: flex;
  justify-content: space-between;
  gap: var(--s-md);
  align-items: baseline;
}

.hero-stat b {
  font-size: 32px;
  line-height: 0.95;
  color: var(--primary);
  font-weight: 700;
}

.hero-stat span { font-size: 14px; color: var(--on-dark-mute); text-align: right; max-width: 22ch; }

/* Page header (interior pages) */
.pagehead {
  background: var(--surface-dark);
  color: var(--on-dark-mute);
  padding: 64px 0;
  border-bottom: 6px solid var(--primary);
}
.pagehead h1 { color: var(--on-dark); font-size: 40px; max-width: 20ch; }
.pagehead .overline { color: var(--primary); }
.pagehead p { color: var(--on-dark-mute); max-width: 68ch; }

/* ---------- Grids & tiles ---------- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s-xl); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-xl); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s-md); }

.split {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--s-xxxl);
  align-items: start;
}

.tile {
  background: var(--canvas);
  color: var(--ink);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-none);
  padding: var(--s-xxl);
}

.tile h3 { margin-bottom: var(--s-sm); }
.tile p { color: var(--body); }
.tile p:last-child, .tile ul:last-child { margin-bottom: 0; }

.tile-dark {
  background: var(--surface-dark);
  color: var(--on-dark-mute);
  border-color: var(--surface-dark);
}
.tile-dark h3, .tile-dark h4 { color: var(--on-dark); }
.tile-dark .overline { color: var(--primary); }

.tile-yellow {
  background: var(--primary);
  color: var(--on-primary);
  border-color: var(--primary);
}
.tile-yellow h2, .tile-yellow h3 { color: var(--on-primary); }

.tile-soft {
  background: var(--surface-soft);
  border-color: var(--hairline);
}

.tile-link {
  display: block;
  text-decoration: none;
}
.tile-link:hover { background: var(--surface-soft); }
.tile-dark.tile-link:hover { background: var(--surface-deep); }

.tile-more {
  display: inline-block;
  margin-top: var(--s-md);
  font-size: 14.4px;
  font-weight: 700;
  letter-spacing: 0.144px;
  border-bottom: 2px solid var(--primary);
  padding-bottom: 2px;
  color: var(--ink);
}
.tile-dark .tile-more { color: var(--on-dark); }

/* ---------- Rows (configurator-style list) ---------- */
.rows { border-top: 1px solid var(--hairline); }

.row {
  border-bottom: 1px solid var(--hairline);
  padding: var(--s-xl) 0;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--s-xl);
  align-items: start;
}

.row dt, .row .row-k {
  font-weight: 700;
  font-size: 18px;
  line-height: 1;
  color: var(--ink);
}

.row dd, .row .row-v { margin: 0; color: var(--body); }
.row-v p:last-child { margin-bottom: 0; }

.band-dark .rows { border-top-color: var(--divider-dark); }
.band-dark .row { border-bottom-color: var(--divider-dark); }
.band-dark .row dt, .band-dark .row .row-k { color: var(--on-dark); }
.band-dark .row dd, .band-dark .row .row-v { color: var(--on-dark-mute); }

/* Numbered steps */
.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--hairline); }
.steps > li {
  counter-increment: step;
  border-bottom: 1px solid var(--hairline);
  padding: var(--s-xl) 0 var(--s-xl) 72px;
  position: relative;
}
.steps > li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: var(--s-xl);
  font-size: 24px;
  font-weight: 700;
  line-height: 0.95;
  color: var(--ink);
  background: var(--primary);
  padding: 6px 10px;
  border-radius: var(--r-xs);
}
.steps h3 { font-size: 20px; margin-bottom: var(--s-xs); }
.steps p:last-child { margin-bottom: 0; }

/* ---------- Tables ---------- */
.table-scroll { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  min-width: 560px;
}

caption {
  text-align: left;
  font-size: 14px;
  color: var(--charcoal);
  padding-bottom: var(--s-sm);
}

th, td {
  text-align: left;
  padding: var(--s-sm) var(--s-md);
  border-bottom: 1px solid var(--hairline);
  vertical-align: top;
}

thead th {
  border-bottom: 2px solid var(--hairline-strong);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--ink);
}

tbody tr:hover { background: var(--surface-soft); }

.band-dark table { color: var(--on-dark-mute); }
.band-dark th { color: var(--on-dark); border-bottom-color: var(--primary); }
.band-dark td { border-bottom-color: var(--divider-dark); }
.band-dark tbody tr:hover { background: var(--surface-deep); }

/* ---------- Lists ---------- */
.ticks { list-style: none; padding: 0; margin: 0 0 var(--s-md) 0; }
.ticks li {
  position: relative;
  padding-left: 26px;
  margin-bottom: var(--s-sm);
}
.ticks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 12px;
  height: 12px;
  background: var(--primary);
  border: 1px solid var(--ink);
}
.band-dark .ticks li::before { border-color: var(--primary); }

.plain { padding-left: 20px; margin: 0 0 var(--s-md) 0; }
.plain li { margin-bottom: var(--s-xs); }

/* ---------- Section head ---------- */
.sec-head { max-width: 70ch; margin-bottom: var(--s-xxxl); }
.sec-head p { color: var(--body); }
.band-dark .sec-head p { color: var(--on-dark-mute); }

/* ---------- Prose ---------- */
.prose { max-width: 72ch; }
.prose h2 { font-size: 32px; margin-top: var(--s-xxxl); }
.prose h3 { font-size: 20px; margin-top: var(--s-xxl); }
.prose p, .prose li { font-size: 17px; line-height: 1.55; }

/* ---------- Fact strip ---------- */
.facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--hairline-strong);
  border-bottom: 1px solid var(--hairline-strong);
}
.facts div {
  padding: var(--s-xl);
  border-right: 1px solid var(--hairline);
}
.facts div:last-child { border-right: none; }
.facts b { display: block; font-size: 24px; line-height: 0.95; margin-bottom: var(--s-xs); }
.facts span { font-size: 14px; color: var(--mute); }

/* ---------- Form ---------- */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-lg);
}

.field { display: flex; flex-direction: column; }
.field-full { grid-column: 1 / -1; }

.field label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: var(--s-xs);
}

.field input,
.field select,
.field textarea {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.4;
  color: var(--ink);
  background: var(--canvas);
  border: 0;
  border-bottom: 1px solid var(--hairline-strong);
  border-radius: var(--r-none);
  padding: 12px 0;
  min-height: 48px;
  width: 100%;
}

.field textarea { min-height: 132px; resize: vertical; }

.field input::placeholder,
.field textarea::placeholder { color: var(--ash); }

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

.check {
  display: flex;
  gap: var(--s-sm);
  align-items: flex-start;
  font-size: 14px;
  color: var(--body);
}
.check input { width: 18px; height: 18px; min-height: 0; margin-top: 3px; }

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}
.band-dark a:focus-visible { outline-color: var(--primary); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--surface-dark);
  color: var(--on-dark-mute);
  padding: 64px var(--s-xl);
  font-size: 14px;
  line-height: 1.57;
}

.footer-inner { max-width: 1440px; margin: 0 auto; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--s-xxxl);
  padding-bottom: var(--s-xxxl);
}

.site-footer h4 {
  color: var(--on-dark);
  font-size: 13px;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: var(--s-md);
}

.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: var(--s-xs); }
.site-footer a { color: var(--on-dark-mute); text-decoration: none; }
.site-footer a:hover { color: var(--primary); }

.footer-brand img { height: 30px; margin-bottom: var(--s-md); }

.footer-bottom {
  border-top: 1px solid var(--divider-dark);
  padding-top: var(--s-lg);
  display: flex;
  justify-content: space-between;
  gap: var(--s-md);
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--on-dark-mute);
}

/* ---------- Breadcrumb ---------- */
.crumb {
  font-size: 12px;
  color: var(--on-dark-mute);
  margin-bottom: var(--s-md);
}
.crumb a { color: var(--on-dark-mute); text-decoration: underline; }

/* ---------- Responsive ---------- */
@media (max-width: 1023px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--s-xxl); }
  .split { grid-template-columns: 1fr; gap: var(--s-xxl); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: var(--s-xl); }
  .facts { grid-template-columns: repeat(2, 1fr); }
  .facts div:nth-child(2) { border-right: none; }
  h1 { font-size: 40px; }
  h2 { font-size: 32px; }
}

@media (max-width: 767px) {
  .band, .hero { padding: var(--s-xxxl) 0; }
  .pagehead { padding: var(--s-xxxl) 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .row { grid-template-columns: 1fr; gap: var(--s-xs); }
  .tile { padding: var(--s-lg); }
  .nav-inner { gap: var(--s-sm); padding: var(--s-xs) var(--s-md); }
  .nav-links { margin-left: 0; width: 100%; gap: var(--s-md); }
  .nav-links a { padding: 8px 0; }
  .wrap, .wrap-narrow { padding: 0 var(--s-md); }
  .site-footer { padding: var(--s-xxxl) var(--s-md); }
  .facts { grid-template-columns: 1fr; }
  .facts div { border-right: none; border-bottom: 1px solid var(--hairline); }
  .hero-stat { flex-direction: column; gap: var(--s-xxs); }
  .hero-stat span { text-align: left; }
  .steps > li { padding-left: 0; padding-top: 64px; }
  .steps > li::before { top: var(--s-md); }
}

@media (max-width: 425px) {
  h1 { font-size: 32px; }
  h2 { font-size: 28px; }
  .pagehead h1 { font-size: 30px; }
}


/* fix: .tile-dark is a deliberately dark card — its body copy was inheriting the
   light-card text colour, leaving dark text on a dark surface. Pin both variants. */
.tile { background: var(--canvas); color: var(--body); }
.tile.tile-dark { background: var(--ink); color: var(--on-dark); }
.tile.tile-dark p, .tile.tile-dark li, .tile.tile-dark dd { color: var(--on-dark-mute); }
.tile.tile-dark h1, .tile.tile-dark h2, .tile.tile-dark h3, .tile.tile-dark h4,
.tile.tile-dark strong, .tile.tile-dark .overline, .tile.tile-dark .tile-more { color: var(--on-dark); }

/* fix: --primary is the bright yellow; a white label on it is unreadable.
   Yellow buttons take the ink label. */
.btn.btn-primary { color: var(--ink); }
.btn.btn-primary:hover { color: var(--ink); }