/* Glesso — glesso.com
   Built from the "Glesso Site v3" design handoff, azure palette.
   Palette values are lifted verbatim from PALETTES.azure in the prototype. */

@font-face {
  font-family: 'Public Sans';
  font-style: normal;
  font-weight: 100 900;          /* variable font, wght axis 100-900 */
  font-display: swap;
  src: url('fonts/public-sans-latin.woff2') format('woff2');
}

:root {
  --paper: oklch(0.985 0.003 250);
  --card: oklch(1 0 0);
  --soft: oklch(0.965 0.006 250);
  --navbg: oklch(1 0 0 / 0.72);
  --ink: oklch(0.24 0.014 260);
  --body: oklch(0.46 0.012 260);
  --mute: oklch(0.62 0.01 260);
  --accent: oklch(0.55 0.16 255);
  --accent2: oklch(0.68 0.13 235);
  --onacc: oklch(1 0 0);
  --tint: oklch(0.955 0.026 255);
  --band: oklch(0.22 0.03 262);
  --bandink: oklch(0.98 0.004 250);
  --bandbody: oklch(0.78 0.014 250);
  --bandsoft: oklch(0.28 0.032 262);
  --bandaccent: oklch(0.78 0.13 245);
  --shadow: 0 1px 2px oklch(0.24 0.02 260 / 0.04), 0 8px 24px oklch(0.24 0.02 260 / 0.06);
  --shadowlg: 0 2px 4px oklch(0.24 0.02 260 / 0.04), 0 18px 50px oklch(0.24 0.02 260 / 0.10);
  --wrap: 1120px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  font-family: 'Public Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  color: var(--ink);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

h1, h2, h3 { margin: 0; }
p { margin: 0; }

@media (prefers-reduced-motion: reduce) {
  html, body { scroll-behavior: auto; }
}

/* Skip link ------------------------------------------------------------- */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--ink);
  color: var(--onacc);
  padding: 14px 22px;
  border-radius: 0 0 12px 0;
  font: 600 14px/1 'Public Sans', sans-serif;
}
.skip:focus { left: 0; color: var(--onacc); }

/* Layout helpers -------------------------------------------------------- */
.wrap { max-width: var(--wrap); margin: 0 auto; }

.section {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 104px 24px 0;
}

.eyebrow {
  font: 600 13px/1 'Public Sans', sans-serif;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 18px;
}

.h2 {
  font: 700 clamp(34px, 3.8vw, 52px)/1.08 'Public Sans', sans-serif;
  letter-spacing: -0.036em;
  text-wrap: balance;
}

.lede {
  font: 300 19px/1.6 'Public Sans', sans-serif;
  color: var(--body);
  text-wrap: pretty;
}

/* Logo mark ------------------------------------------------------------- */
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark { display: flex; align-items: center; gap: 3px; }
.logo-mark i {
  display: block;
  border-radius: 999px;
  background: var(--accent);
}
.logo-mark i:nth-child(1),
.logo-mark i:nth-child(4) { width: 3px; height: 14px; background: var(--accent2); opacity: 0.45; }
.logo-mark i:nth-child(2) { width: 4px; height: 20px; }
.logo-mark i:nth-child(3) { width: 4px; height: 26px; }
.logo-word { font: 700 20px/1 'Public Sans', sans-serif; letter-spacing: -0.025em; }

/* Nav ------------------------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 16px 24px;
  display: flex;
  justify-content: center;
}
.nav-inner {
  width: 100%;
  max-width: var(--wrap);
  background: var(--navbg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 999px;
  box-shadow: var(--shadow);
  padding: 12px 16px 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a {
  font: 500 13.5px/1 'Public Sans', sans-serif;
  color: var(--body);
  white-space: nowrap;
}
.nav-cta {
  font: 600 13.5px/1 'Public Sans', sans-serif;
  background: var(--ink);
  color: var(--onacc);
  padding: 12px 22px;
  border-radius: 999px;
}
.nav-cta:hover { color: var(--onacc); opacity: 0.88; }

/* Hero ------------------------------------------------------------------ */
.hero { position: relative; overflow: hidden; padding: 76px 24px 0; }
.hero-glow {
  position: absolute;
  left: 50%;
  top: -320px;
  transform: translateX(-50%);
  width: 1100px;
  height: 700px;
  border-radius: 999px;
  background: radial-gradient(ellipse at center, var(--tint) 0%, transparent 68%);
  pointer-events: none;
}
.hero-inner { position: relative; max-width: 980px; margin: 0 auto; text-align: center; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: var(--card);
  border-radius: 999px;
  padding: 9px 18px;
  box-shadow: var(--shadow);
  margin-bottom: 34px;
}
.badge span:first-child {
  width: 7px; height: 7px; border-radius: 999px; background: var(--accent);
}
.badge span:last-child {
  font: 500 12px/1 'Public Sans', sans-serif;
  letter-spacing: 0.04em;
  color: var(--body);
}

.h1 {
  font: 700 clamp(48px, 6.4vw, 92px)/1.03 'Public Sans', sans-serif;
  letter-spacing: -0.042em;
  text-wrap: balance;
}
.hero-sub {
  margin: 30px auto 0;
  max-width: 660px;
  font: 300 21px/1.55 'Public Sans', sans-serif;
  color: var(--body);
  text-wrap: pretty;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 38px;
}
.btn {
  font: 600 15px/1 'Public Sans', sans-serif;
  border-radius: 999px;
  box-shadow: var(--shadow);
  padding: 19px 32px;
  transition: transform 0.15s ease, opacity 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-accent { background: var(--accent); color: var(--onacc); }
.btn-accent:hover { color: var(--onacc); opacity: 0.92; }
.btn-card { background: var(--card); color: var(--ink); padding: 19px 28px; }

/* Hero "the jump" card -------------------------------------------------- */
.jump {
  position: relative;
  max-width: var(--wrap);
  margin: 76px auto 0;
  background: var(--card);
  border-radius: 36px;
  box-shadow: var(--shadowlg);
  padding: 44px 48px 40px;
  overflow: hidden;
}
.jump-glow {
  position: absolute;
  right: -140px;
  top: -140px;
  width: 420px;
  height: 420px;
  border-radius: 999px;
  background: radial-gradient(circle at center, var(--tint) 0%, transparent 70%);
}
.jump-head {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.jump-title {
  font: 700 34px/1.15 'Public Sans', sans-serif;
  letter-spacing: -0.03em;
  max-width: 520px;
  text-wrap: balance;
}
.jump-figure {
  font: 700 68px/1 'Public Sans', sans-serif;
  letter-spacing: -0.05em;
  color: var(--accent);
}
.jump-figure-note {
  margin-top: 8px;
  font: 400 13px/1.4 'Public Sans', sans-serif;
  color: var(--mute);
}
.jump-cols {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: stretch;
}
.jump-col {
  border-radius: 28px;
  padding: 32px 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.jump-col-before { background: var(--soft); }
.jump-col-after { background: linear-gradient(150deg, var(--tint) 0%, var(--soft) 100%); }

.node-grid {
  display: grid;
  grid-template-columns: repeat(4, 26px);
  gap: 11px;
  width: max-content;
  margin-bottom: 26px;
}
.node-grid i {
  display: block;
  width: 26px; height: 26px;
  border-radius: 999px;
  background: var(--mute);
  opacity: 0.3;
}
.node-pair { display: flex; gap: 14px; margin-bottom: 26px; }
.node-pair i {
  display: block;
  width: 56px; height: 56px;
  border-radius: 999px;
  box-shadow: var(--shadow);
}
.node-pair i:nth-child(1) { background: var(--accent); }
.node-pair i:nth-child(2) { background: var(--accent2); }

.jump-count {
  font: 700 26px/1.1 'Public Sans', sans-serif;
  letter-spacing: -0.03em;
}
.jump-col-before .jump-count { color: var(--body); }
.jump-label { margin-top: 8px; font: 400 15px/1.45 'Public Sans', sans-serif; }
.jump-col-before .jump-label { color: var(--mute); }
.jump-col-after .jump-label { color: var(--body); }

.jump-arrow { display: flex; align-items: center; justify-content: center; }
.jump-arrow div {
  width: 64px; height: 64px;
  border-radius: 999px;
  background: var(--tint);
  display: flex;
  align-items: center;
  justify-content: center;
}
.jump-arrow i {
  display: block;
  width: 13px; height: 16px;
  background: var(--accent);
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.jump-note {
  position: relative;
  margin-top: 32px;
  background: var(--soft);
  border-radius: 20px;
  padding: 18px 22px;
  font: 400 13px/1.6 'Public Sans', sans-serif;
  color: var(--mute);
}

/* Hero stat strip ------------------------------------------------------- */
.stats {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 80px 8px 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.stat { padding: 0 8px; }
.stat-figure {
  font: 700 64px/1 'Public Sans', sans-serif;
  letter-spacing: -0.05em;
}
.stat-figure .unit { font-size: 32px; letter-spacing: -0.03em; }
.stat-figure.is-accent { color: var(--accent); }
.stat-label {
  margin-top: 14px;
  font: 400 15.5px/1.5 'Public Sans', sans-serif;
  color: var(--body);
  max-width: 250px;
}
.stat-note {
  display: inline-block;
  margin-top: 14px;
  font: 500 12px/1 'Public Sans', sans-serif;
  letter-spacing: 0.04em;
  color: var(--mute);
}

/* Problem --------------------------------------------------------------- */
.problem-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 56px;
  align-items: start;
  margin-top: 40px;
}
.problem-copy { display: flex; flex-direction: column; gap: 24px; max-width: 640px; }
.problem-copy p { font: 300 19px/1.62 'Public Sans', sans-serif; color: var(--body); text-wrap: pretty; }

.list-card {
  background: var(--card);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: 34px 32px;
}
.list-card-title {
  font: 600 12.5px/1 'Public Sans', sans-serif;
  letter-spacing: 0.08em;
  color: var(--mute);
  margin-bottom: 26px;
}
.list-card ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 17px; }
.list-card li { display: flex; align-items: center; gap: 14px; font: 400 16px/1.4 'Public Sans', sans-serif; color: var(--body); }
.list-card li::before {
  content: '';
  width: 9px; height: 9px;
  border-radius: 999px;
  background: var(--accent);
  flex-shrink: 0;
}

/* Mechanisms ------------------------------------------------------------ */
.mech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 44px;
}
.mech-card {
  background: var(--card);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: 36px 32px 40px;
}
.mech-icon {
  width: 60px; height: 60px;
  border-radius: 999px;
  background: var(--tint);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
}
.mech-icon-dots { display: flex; gap: 5px; }
.mech-icon-dots i { display: block; width: 9px; height: 9px; border-radius: 999px; background: var(--accent); }
.mech-icon-dots i:last-child { background: var(--accent2); }
.mech-icon-ring {
  width: 28px; height: 28px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 6px oklch(0.55 0.16 255 / 0.16);
}
.mech-icon-quad { position: relative; width: 30px; height: 30px; }
.mech-icon-quad i { position: absolute; width: 13px; height: 13px; border-radius: 999px; background: var(--accent); }
.mech-icon-quad i:nth-child(1) { left: 0; top: 0; }
.mech-icon-quad i:nth-child(2) { right: 0; top: 0; }
.mech-icon-quad i:nth-child(3) { left: 0; bottom: 0; }
.mech-icon-quad i:nth-child(4) {
  right: 0; bottom: 0;
  background: var(--card);
  box-shadow: 0 0 0 2px var(--accent2) inset, 0 0 0 2px var(--accent2);
}
.mech-card h3 {
  margin-bottom: 14px;
  font: 700 23px/1.2 'Public Sans', sans-serif;
  letter-spacing: -0.025em;
}
.mech-card p { font: 400 16px/1.6 'Public Sans', sans-serif; color: var(--body); text-wrap: pretty; }

/* Ladder ---------------------------------------------------------------- */
.ladder {
  margin-top: 48px;
  background: var(--card);
  border-radius: 32px;
  box-shadow: var(--shadow);
  padding: 16px 40px 24px;
}
.rung {
  padding: 26px 0;
  display: grid;
  grid-template-columns: 190px 1fr 130px;
  gap: 36px;
  align-items: center;
}
.rung-hi {
  margin: 8px -20px;
  padding: 28px 20px;
  border-radius: 24px;
  background: linear-gradient(120deg, var(--tint) 0%, oklch(1 0 0 / 0) 100%);
}
.rung-rule { height: 1px; background: var(--soft); }
.rung-tier {
  font: 700 30px/1 'Public Sans', sans-serif;
  letter-spacing: -0.035em;
}
.rung-tag {
  margin-top: 10px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font: 600 11px/1 'Public Sans', sans-serif;
  letter-spacing: 0.08em;
  padding: 7px 13px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--body);
}
.rung-tag.is-mute { color: var(--mute); }
.rung-tag.is-live { background: var(--accent); color: var(--onacc); }
.rung-tag.is-live::before { content: ''; width: 6px; height: 6px; border-radius: 999px; background: var(--onacc); }
.rung-tag.is-target { background: var(--tint); color: var(--accent); }
.rung-track { height: 10px; border-radius: 999px; background: var(--soft); overflow: hidden; }
.rung-track i { display: block; height: 10px; border-radius: 999px; }
.rung-desc {
  margin-top: 14px;
  font: 400 15.5px/1.5 'Public Sans', sans-serif;
  color: var(--body);
  max-width: 520px;
}
.rung-nodes { text-align: right; }
.rung-count {
  font: 700 32px/1 'Public Sans', sans-serif;
  letter-spacing: -0.04em;
}
.rung-nodes span { display: block; margin-top: 6px; font: 400 12.5px/1 'Public Sans', sans-serif; color: var(--mute); }
.is-mute { color: var(--mute); }
.is-body { color: var(--body); }
.is-accent { color: var(--accent); }
.ladder-foot { margin-top: 18px; font: 400 13px/1.6 'Public Sans', sans-serif; color: var(--mute); }

/* Dark bands ------------------------------------------------------------ */
.band {
  margin-top: 104px;
  background: var(--band);
  color: var(--bandink);
  border-radius: 48px 48px 0 0;
  overflow: hidden;
}
.band .eyebrow { color: var(--bandaccent); }
.band-inner { max-width: var(--wrap); margin: 0 auto; padding: 96px 24px 104px; }

.arith-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: start;
  margin-top: 44px;
}
.arith-copy p {
  max-width: 620px;
  font: 300 19.5px/1.62 'Public Sans', sans-serif;
  color: var(--bandbody);
  text-wrap: pretty;
}
.arith-copy p + p { margin-top: 22px; }
.arith-lead {
  margin-top: 32px !important;
  font: 600 17.5px/1.6 'Public Sans', sans-serif !important;
  color: var(--bandink) !important;
}
.savings { margin-top: 26px; display: flex; flex-direction: column; gap: 14px; }
.saving {
  background: var(--bandsoft);
  border-radius: 20px;
  padding: 20px 24px;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 20px;
  align-items: baseline;
}
.saving dt { font: 600 15.5px/1.4 'Public Sans', sans-serif; }
.saving dd { margin: 0; font: 400 15.5px/1.55 'Public Sans', sans-serif; color: var(--bandbody); }

.model {
  background: var(--bandsoft);
  border-radius: 28px;
  padding: 34px 32px 30px;
}
.model-title {
  font: 600 12.5px/1 'Public Sans', sans-serif;
  letter-spacing: 0.08em;
  color: var(--bandaccent);
  margin-bottom: 10px;
}
.model-sub { font: 400 12.5px/1.5 'Public Sans', sans-serif; color: var(--bandbody); margin-bottom: 24px; }
.model table { width: 100%; border-collapse: collapse; }
.model th, .model td { padding: 0; }
.model thead th {
  font: 500 12px/1.3 'Public Sans', sans-serif;
  letter-spacing: 0.04em;
  color: var(--bandbody);
  text-align: right;
  padding-bottom: 14px;
  font-weight: 500;
}
.model thead th:first-child { text-align: left; }
.model thead th.col-800 { color: var(--bandink); }
.model thead th.col-16 { color: var(--bandaccent); }
.model tbody td {
  font: 400 15.5px/1.3 'Public Sans', sans-serif;
  text-align: right;
  padding: 16px 0;
  color: var(--bandink);
}
.model tbody th {
  font: 400 15.5px/1.3 'Public Sans', sans-serif;
  text-align: left;
  color: var(--bandbody);
  padding: 16px 0;
  font-weight: 400;
}
.model td.dim { color: var(--bandbody); }
.model td.strong { font-weight: 600; }
.model td.hero-cell { font: 700 22px/1 'Public Sans', sans-serif; color: var(--bandaccent); }
.model td.accent { font-weight: 600; color: var(--bandaccent); }
.model-foot {
  margin-top: 22px;
  background: var(--band);
  border-radius: 16px;
  padding: 16px 18px;
  font: 400 12.5px/1.6 'Public Sans', sans-serif;
  color: var(--bandbody);
}

/* Billing --------------------------------------------------------------- */
.billing-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 24px;
  align-items: stretch;
}
.chart-card {
  background: var(--card);
  border-radius: 32px;
  box-shadow: var(--shadow);
  padding: 38px 40px 32px;
}
.chart-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}
.chart-title { font: 700 22px/1.2 'Public Sans', sans-serif; letter-spacing: -0.025em; }
.legend { display: flex; align-items: center; gap: 18px; }
.legend span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: 500 12.5px/1 'Public Sans', sans-serif;
  color: var(--body);
}
.legend span.is-mute { color: var(--mute); }
.legend i { display: block; width: 20px; height: 4px; border-radius: 999px; background: var(--accent); }
.legend span.is-mute i { background: var(--mute); opacity: 0.45; }
.chart-wrap { position: relative; }
.chart-wrap svg { width: 100%; height: auto; display: block; overflow: visible; }
.chart-ylabel {
  position: absolute;
  left: 0; top: 0;
  font: 500 11.5px/1 'Public Sans', sans-serif;
  letter-spacing: 0.06em;
  color: var(--mute);
}
.chart-axis {
  margin-top: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font: 500 12px/1 'Public Sans', sans-serif;
  letter-spacing: 0.05em;
  color: var(--mute);
}
.chart-note {
  margin-top: 24px;
  background: var(--soft);
  border-radius: 20px;
  padding: 18px 22px;
  font: 400 13px/1.6 'Public Sans', sans-serif;
  color: var(--mute);
}
.billing-cards { display: flex; flex-direction: column; gap: 20px; }
.billing-card {
  background: var(--card);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: 32px 30px 34px;
}
.billing-card.is-lead { background: linear-gradient(160deg, var(--tint) 0%, var(--card) 62%); }
.billing-dot { width: 44px; height: 44px; border-radius: 999px; background: var(--accent); margin-bottom: 22px; }
.billing-card h3 {
  margin-bottom: 12px;
  font: 700 20px/1.25 'Public Sans', sans-serif;
  letter-spacing: -0.024em;
}
.billing-card p { font: 400 15.5px/1.6 'Public Sans', sans-serif; color: var(--body); text-wrap: pretty; }

/* Services -------------------------------------------------------------- */
.svc-grid {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.svc-card {
  background: var(--card);
  border-radius: 26px;
  box-shadow: var(--shadow);
  padding: 32px 28px 34px;
}
.svc-num {
  font: 600 12px/1 'Public Sans', sans-serif;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 20px;
}
.svc-card h3 {
  margin-bottom: 12px;
  font: 700 19.5px/1.3 'Public Sans', sans-serif;
  letter-spacing: -0.022em;
}
.svc-card p { font: 400 15.5px/1.6 'Public Sans', sans-serif; color: var(--body); text-wrap: pretty; }

.start-here {
  margin-top: 22px;
  background: linear-gradient(120deg, var(--tint) 0%, var(--card) 70%);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
}
.start-here-copy { max-width: 720px; }
.start-here h3 {
  margin-bottom: 12px;
  font: 700 26px/1.25 'Public Sans', sans-serif;
  letter-spacing: -0.028em;
}
.start-here p { font: 400 16.5px/1.6 'Public Sans', sans-serif; color: var(--body); text-wrap: pretty; }
.start-here .btn { white-space: nowrap; padding: 19px 30px; }

/* Platforms ------------------------------------------------------------- */
.pills { margin-top: 38px; display: flex; flex-wrap: wrap; gap: 12px; }
.pill {
  font: 400 15px/1 'Public Sans', sans-serif;
  background: var(--card);
  color: var(--body);
  padding: 16px 24px;
  border-radius: 999px;
  box-shadow: var(--shadow);
}
.pill.is-primary { font-weight: 600; background: var(--ink); color: var(--onacc); box-shadow: none; }

/* Engagement ------------------------------------------------------------ */
.eng-grid {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.eng-card {
  background: var(--card);
  border-radius: 26px;
  box-shadow: var(--shadow);
  padding: 32px 26px 36px;
}
.eng-card.is-lead { background: linear-gradient(160deg, var(--tint) 0%, var(--card) 60%); }
.eng-dot { width: 38px; height: 38px; border-radius: 999px; background: var(--soft); margin-bottom: 24px; }
.eng-card.is-lead .eng-dot { background: var(--accent); }
.eng-card h3 {
  font: 700 19px/1.25 'Public Sans', sans-serif;
  letter-spacing: -0.022em;
  margin-bottom: 12px;
}
.eng-card p { font: 400 15.5px/1.6 'Public Sans', sans-serif; color: var(--body); text-wrap: pretty; }

/* Contact + footer ------------------------------------------------------ */
.contact-inner { position: relative; max-width: var(--wrap); margin: 0 auto; padding: 104px 24px 56px; }
.contact-glow {
  position: absolute;
  left: 50%;
  top: -160px;
  transform: translateX(-50%);
  width: 900px;
  height: 520px;
  border-radius: 999px;
  background: radial-gradient(ellipse at center, var(--bandsoft) 0%, transparent 66%);
  pointer-events: none;
}
.contact-body { position: relative; text-align: center; }
.contact-body .h2 { font-size: clamp(34px, 4vw, 56px); line-height: 1.06; letter-spacing: -0.038em; }
.contact-lede {
  margin: 28px auto 0;
  max-width: 620px;
  font: 300 20px/1.55 'Public Sans', sans-serif;
  color: var(--bandbody);
  text-wrap: pretty;
}
.contact-mail {
  display: inline-block;
  margin-top: 40px;
  font: 600 19px/1 'Public Sans', sans-serif;
  background: var(--bandaccent);
  color: var(--band);
  padding: 22px 40px;
  border-radius: 999px;
  transition: transform 0.15s ease;
}
.contact-mail:hover { color: var(--band); transform: translateY(-1px); }
.contact-note { margin-top: 24px; font: 400 13px/1.6 'Public Sans', sans-serif; color: var(--bandbody); }

.footer {
  position: relative;
  margin-top: 84px;
  padding-top: 32px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.footer .logo-mark i { background: var(--bandaccent); }
.footer .logo-mark i:nth-child(1),
.footer .logo-mark i:nth-child(4) { width: 3px; height: 12px; opacity: 0.45; }
.footer .logo-mark i:nth-child(2) { width: 4px; height: 17px; }
.footer .logo-mark i:nth-child(3) { width: 4px; height: 22px; }
.footer-org { font: 400 13.5px/1 'Public Sans', sans-serif; color: var(--bandbody); }
.footer-links { display: flex; align-items: center; gap: 26px; flex-wrap: wrap; }
.footer-links a { font: 400 13.5px/1 'Public Sans', sans-serif; color: var(--bandbody); }
.footer-links a:hover { color: var(--bandaccent); }
.footer-copy { font: 400 12.5px/1 'Public Sans', sans-serif; color: var(--bandbody); }

/* ----------------------------------------------------------------------- *
 * Responsive. The v3 prototype carries no media queries at all; every
 * breakpoint below is a decision made here, not one taken from the design.
 * ----------------------------------------------------------------------- */

@media (max-width: 1080px) {
  .nav-links { gap: 18px; }
  .nav-links a { font-size: 13px; }
  .jump { padding: 36px 32px 32px; }
  .arith-grid { gap: 40px; }
}

@media (max-width: 940px) {
  .section { padding-top: 84px; }
  .problem-grid { grid-template-columns: 1fr; gap: 32px; }
  .arith-grid { grid-template-columns: 1fr; gap: 40px; }
  .billing-grid { grid-template-columns: 1fr; }
  .mech-grid { grid-template-columns: repeat(2, 1fr); }
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .eng-grid { grid-template-columns: repeat(2, 1fr); }
  .band { margin-top: 84px; }
  .band-inner { padding: 76px 24px 84px; }
}

@media (max-width: 860px) {
  /* Nav collapses to logo + contact; the in-page links live in the footer. */
  .nav-links a:not(.nav-cta) { display: none; }
  .nav-inner { padding: 10px 12px 10px 20px; }

  .jump-cols { grid-template-columns: 1fr; gap: 18px; }
  .jump-arrow div { transform: rotate(90deg); }
  .jump-figure { font-size: 54px; }
  .jump-title { font-size: 28px; }

  .rung {
    grid-template-columns: 1fr auto;
    gap: 14px 20px;
    align-items: start;
  }
  .rung-tier-cell { grid-column: 1; }
  .rung-nodes { grid-column: 2; grid-row: 1; }
  .rung-bar-cell { grid-column: 1 / -1; }
  .rung-desc { max-width: none; }
  .rung-hi { margin: 8px -12px; padding: 24px 12px; }
  .ladder { padding: 8px 24px 20px; }
}

@media (max-width: 720px) {
  .section { padding: 72px 20px 0; }
  .hero { padding: 48px 20px 0; }
  .stats { grid-template-columns: 1fr; gap: 36px; padding-top: 60px; }
  .stat-label { max-width: none; }
  .mech-grid { grid-template-columns: 1fr; }
  .svc-grid { grid-template-columns: 1fr; }
  .eng-grid { grid-template-columns: 1fr; }
  .start-here { grid-template-columns: 1fr; padding: 32px 28px; }
  .start-here .btn { justify-self: start; }
  .saving { grid-template-columns: 1fr; gap: 6px; }
  .jump { border-radius: 28px; padding: 28px 22px 24px; margin-top: 56px; }
  .band { border-radius: 32px 32px 0 0; }
  .band-inner { padding: 64px 20px 72px; }
  .contact-inner { padding: 72px 20px 48px; }
  .chart-card { padding: 28px 24px 24px; }
  .footer { justify-content: flex-start; gap: 20px; }
}

@media (max-width: 560px) {
  .hero-sub { font-size: 18px; }
  .cta-row { flex-direction: column; align-items: stretch; }
  .btn { text-align: center; }
  .jump-head { flex-direction: column; align-items: flex-start; gap: 16px; }
  .jump-figure-note br { display: none; }
  .node-pair i { width: 44px; height: 44px; }
  .model { padding: 26px 20px 22px; }
  .model thead th, .model tbody td, .model tbody th { font-size: 13.5px; }
  .model td.hero-cell { font-size: 18px; }
  .pill { padding: 13px 18px; font-size: 14px; }
  .contact-mail { font-size: 16px; padding: 18px 28px; }
  .footer-links { gap: 16px; }
}