/* =========================================================
   AdverX Marketing Solutions — stylesheet
   Light / white theme, Poppins UI + DM Serif Display taglines
   ========================================================= */

:root {
  /* surfaces */
  --bg: #ffffff;
  --bg-alt: #f5f7fa;
  --card: #ffffff;

  /* ink */
  --ink: #0d1b2a;
  --ink-soft: #24384c;
  --muted: #5c6b7a;

  /* lines */
  --line: #e3e9f0;
  --line-strong: #cdd8e4;

  /* accent */
  --accent: #1a5fd0;
  --accent-dark: #14459b;
  --accent-soft: #eaf1ff;

  /* system */
  --header-h: 74px;
  --radius: 16px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(13, 27, 42, .05);
  --shadow: 0 10px 30px rgba(13, 27, 42, .07);
  --shadow-lg: 0 24px 60px rgba(13, 27, 42, .10);
  --ease: cubic-bezier(.22, .61, .36, 1);

  --font-ui: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "DM Serif Display", Georgia, "Times New Roman", serif;
}

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

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

body {
  margin: 0;
  padding-top: var(--header-h);
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, .logo-word, .btn, .eyebrow, .pill, label, legend, .step-num, .panel-num {
  font-family: var(--font-ui);
}

h1, h2, h3, h4, p, ul, ol, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg { max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 200;
  background: var(--accent); color: #fff;
  padding: 10px 16px; border-radius: 8px;
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 12px; }

/* ---------- layout ---------- */
.container {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: 24px;
}

.section {
  padding-block: clamp(64px, 8vw, 118px);
  scroll-margin-top: calc(var(--header-h) + 8px);
}
.section-alt { background: var(--bg-alt); }
section[id] { scroll-margin-top: calc(var(--header-h) + 8px); }

/* ---------- shared type ---------- */
.eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}

.section-title {
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: -.02em;
  max-width: 22ch;
}

.section-lead {
  margin-top: 18px;
  max-width: 62ch;
  font-size: clamp(16px, 1.6vw, 18px);
  color: var(--muted);
}

.accent { color: var(--accent); }

.big-statement {
  margin-top: clamp(32px, 5vw, 56px);
  font-family: var(--font-serif);
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.25;
  color: var(--ink);
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .01em;
  cursor: pointer;
  transition: transform .2s var(--ease), background-color .2s var(--ease),
              box-shadow .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 18px rgba(26, 95, 208, .22);
}
.btn-accent:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(26, 95, 208, .28);
}
.btn-sm { padding: 10px 20px; font-size: 14px; }
.btn-block { width: 100%; margin-top: 8px; }

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s var(--ease), background-color .25s var(--ease);
}
.site-header.is-scrolled { box-shadow: 0 6px 24px rgba(13, 27, 42, .06); }

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 24px;
}

.logo { display: inline-flex; align-items: center; gap: 10px; }
.x-mark { width: 28px; height: 28px; flex: none; }

/* ---------- brand mark ----------
   One symbol everywhere: a muted descending stroke crossed by an accent
   ascending arrow. Identical geometry at every size (viewBox 0 0 100 100,
   paths M22 22 L78 78 / M22 78 L78 22 / M58 22 H78 V42); only the stroke
   weight is tuned optically per size. */
.x-mark path,
.x-mark-large path,
.x-mark-cta path,
.converge-svg .x-glyph path {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.x-mark .x-b,
.x-mark-large .x-b,
.x-mark-cta .x-b,
.converge-svg .x-glyph .x-b { stroke: var(--ink); opacity: .3; }

.x-mark .x-a, .x-mark .x-a-head,
.x-mark-large .x-a, .x-mark-large .x-a-head,
.x-mark-cta .x-a, .x-mark-cta .x-a-head,
.converge-svg .x-glyph .x-a,
.converge-svg .x-glyph .x-a-head { stroke: var(--accent); }

.x-mark .x-b { stroke-width: 9; }
.x-mark .x-a, .x-mark .x-a-head { stroke-width: 10; }
.logo:hover .x-mark .x-b { opacity: .5; }
.logo-word {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--ink);
}
.logo-x { color: var(--accent); }

.primary-nav {
  display: flex;
  gap: 30px;
  margin-left: auto;
}
.primary-nav a {
  position: relative;
  font-family: var(--font-ui);
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-soft);
  padding: 6px 0;
  transition: color .2s var(--ease);
}
.primary-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s var(--ease);
}
.primary-nav a:hover { color: var(--accent); }
.primary-nav a:hover::after { transform: scaleX(1); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: 12px;
}

.menu-toggle {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  cursor: pointer;
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}
.menu-toggle:hover { border-color: var(--accent); }
.menu-bars { display: block; width: 18px; }
.menu-bars i {
  display: block;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform .25s var(--ease), opacity .2s var(--ease);
}
.menu-bars i + i { margin-top: 4px; }
.menu-toggle[aria-expanded="true"] .menu-bars i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-bars i:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] .menu-bars i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* dropdown panel */
.menu-panel {
  position: absolute;
  left: 0; right: 0; top: 100%;
  background: #fff;
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity .22s var(--ease), transform .22s var(--ease);
}
.menu-panel.is-open { opacity: 1; transform: translateY(0); }
.menu-panel { max-height: calc(100vh - var(--header-h)); overflow-y: auto; }
.menu-panel[hidden] { display: none; }

.menu-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  padding-block: 32px 36px;
}
.menu-heading {
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.menu-col a {
  display: block;
  padding: 7px 0;
  font-size: 15px;
  color: var(--ink-soft);
  transition: color .2s var(--ease), transform .2s var(--ease);
}
.menu-col a:hover { color: var(--accent); transform: translateX(3px); }
.menu-note { font-size: 14px; color: var(--muted); margin-bottom: 16px; }
.menu-col-mobile { display: none; }

/* =========================================================
   1. HERO
   ========================================================= */
.hero {
  padding-block: clamp(56px, 7vw, 104px) clamp(64px, 8vw, 110px);
  background:
    radial-gradient(900px 420px at 88% -10%, var(--accent-soft), transparent 70%),
    var(--bg);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.hero h1 {
  font-size: clamp(40px, 6.4vw, 76px);
  font-weight: 700;
  line-height: 1.03;
  letter-spacing: -.03em;
  margin-bottom: 24px;
}
.hero .lead {
  max-width: 52ch;
  font-size: clamp(17px, 1.8vw, 20px);
  color: var(--ink-soft);
}
.hero .lead + .lead { margin-top: 14px; }
.lead-muted { color: var(--muted); font-size: clamp(16px, 1.6vw, 18px) !important; }

.hero-visual {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: clamp(18px, 2.4vw, 30px);
}
.engine-svg { display: block; width: 100%; height: auto; }
.engine-svg .rail { stroke: var(--line); stroke-width: 2; }
.engine-svg .rail-flow {
  stroke: var(--accent);
  stroke-width: 2;
  stroke-dasharray: 6 12;
  animation: dashFlow 1.6s linear infinite;
}
.engine-svg .node circle { fill: #fff; stroke: var(--line-strong); stroke-width: 2; }
.engine-svg .node text {
  font-family: var(--font-ui);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .14em;
  fill: var(--ink);
}
.engine-svg .node-rule { stroke: var(--line); stroke-width: 1; }
.engine-svg .node-hot circle { fill: var(--accent); stroke: var(--accent); }
.engine-svg .node-hot text { fill: var(--accent); }

@keyframes dashFlow { to { stroke-dashoffset: -36; } }

/* =========================================================
   2. SPECIALISE
   ========================================================= */
.split-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: clamp(32px, 4vw, 52px);
}
.split-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(26px, 3vw, 40px);
  box-shadow: var(--shadow-sm);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.split-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow);
}
.card-kicker {
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.card-statement {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.2;
}

/* =========================================================
   3. ENGINE / PROCESS
   ========================================================= */
.steps {
  position: relative;
  margin-top: clamp(34px, 4vw, 54px);
}
.steps::before {
  content: "";
  position: absolute;
  left: 23px; top: 24px; bottom: 24px;
  width: 2px;
  background: linear-gradient(var(--line), var(--line-strong), var(--line));
}
.step {
  position: relative;
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 22px;
  padding-block: 16px;
}
.step-num {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--line);
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  z-index: 1;
  transition: border-color .25s var(--ease), background-color .25s var(--ease), color .25s var(--ease);
}
.step:hover .step-num { border-color: var(--accent); background: var(--accent); color: #fff; }
.step-body h3 {
  font-size: clamp(17px, 1.9vw, 20px);
  font-weight: 600;
  margin-bottom: 6px;
}
.step-name { color: var(--accent); }
.step-name::after { content: " —"; color: var(--line-strong); }
.step-body p { color: var(--muted); max-width: 62ch; }

/* =========================================================
   4. SERVICES
   ========================================================= */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(24px, 3vw, 40px);
  margin-top: clamp(28px, 3.5vw, 44px);
}
.service-panel {
  scroll-margin-top: calc(var(--header-h) + 16px);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(26px, 3vw, 42px);
  box-shadow: var(--shadow-sm);
}
.panel-num {
  display: inline-grid;
  place-items: center;
  width: 42px; height: 42px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 18px;
}
.panel-head {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.panel-title {
  font-size: clamp(26px, 3.2vw, 36px);
  font-weight: 600;
  letter-spacing: -.02em;
}
.pill {
  display: inline-block;
  padding: 5px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--bg-alt);
}
.tagline {
  margin-top: 20px;
  font-family: var(--font-serif);
  line-height: 1.32;
}
.tagline-line {
  display: block;
  font-size: clamp(22px, 2.6vw, 30px);
  color: var(--ink);
}
.tagline-sub {
  margin-top: 10px;
  font-size: clamp(17px, 1.9vw, 21px);
  color: var(--ink-soft);
}

.service-list { margin-top: clamp(24px, 3vw, 34px); }
.service-list li {
  padding-block: 18px;
  border-top: 1px solid var(--line);
  transition: padding-left .25s var(--ease);
}
.service-list li:hover { padding-left: 8px; }
.service-list h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 3px;
}
.service-list p { font-size: 15px; color: var(--muted); }

/* =========================================================
   5. CONVERGENCE
   ========================================================= */
.diagram-wrap {
  margin-top: clamp(24px, 3vw, 40px);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: clamp(18px, 3vw, 34px);
}
.converge-svg { display: block; width: 100%; height: auto; }
.converge-svg .flow {
  fill: none;
  stroke: var(--line-strong);
  stroke-width: 2;
  stroke-dasharray: 5 8;
  animation: dashFlow 1.8s linear infinite;
}
.converge-svg .dot { fill: var(--accent); }
.converge-svg .node-title {
  font-family: var(--font-ui);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: .08em;
  fill: var(--ink);
  text-anchor: middle;
}
.converge-svg .node-sub {
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 400;
  fill: var(--muted);
  text-anchor: middle;
}
.converge-svg .node-brand {
  font-family: var(--font-ui);
  font-size: 23px;
  font-weight: 700;
  letter-spacing: .16em;
  fill: var(--accent);
  text-anchor: middle;
}
.converge-svg .x-glyph .x-b { stroke-width: 7; }
.converge-svg .x-glyph .x-a,
.converge-svg .x-glyph .x-a-head { stroke-width: 8; }

.quote {
  margin-top: clamp(30px, 4vw, 46px);
  padding-left: 22px;
  border-left: 3px solid var(--accent);
  max-width: 74ch;
  font-size: clamp(17px, 1.9vw, 21px);
  line-height: 1.6;
  color: var(--ink-soft);
}

/* =========================================================
   6. WHY ADVERX
   ========================================================= */
.cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: clamp(32px, 4vw, 50px);
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(24px, 2.6vw, 34px);
  box-shadow: var(--shadow-sm);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--line-strong); }
.card h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 8px;
}
.card h3::before {
  content: "";
  display: block;
  width: 28px; height: 3px;
  border-radius: 3px;
  background: var(--accent);
  margin-bottom: 14px;
}
.card p { color: var(--muted); }

/* =========================================================
   7. NO VANITY METRICS
   ========================================================= */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: clamp(32px, 4vw, 50px);
}
.metrics-col {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(24px, 2.6vw, 34px);
}
.metrics-label {
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}
.metrics-label-real { color: var(--accent); }
.metrics-list li {
  padding-block: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-ui);
  font-size: clamp(19px, 2.2vw, 24px);
}
.metrics-vanity li { color: var(--muted); font-weight: 400; }
.metrics-vanity s { text-decoration-thickness: 1px; }
.metrics-real li { color: var(--ink); font-weight: 600; }

/* =========================================================
   8. EXPERIENCE
   ========================================================= */
.experience-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 4vw, 60px);
  margin-top: clamp(30px, 4vw, 46px);
  align-items: start;
}
.experience-copy p {
  font-size: clamp(17px, 1.8vw, 20px);
  color: var(--ink-soft);
  max-width: 46ch;
}
.experience-list { margin-top: 0; }
.experience-list li:first-child { border-top: 1px solid var(--line); }

/* =========================================================
   9. ABOUT
   ========================================================= */
.about-inner { max-width: 860px; }
.about-line {
  font-size: clamp(17px, 1.8vw, 19px);
  color: var(--muted);
  margin-top: 22px;
}
.about-strong {
  margin-top: 10px;
  font-family: var(--font-ui);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--ink);
}
.about-platforms { margin-top: 12px; }
.callout {
  margin-top: clamp(30px, 4vw, 44px);
  padding-top: clamp(24px, 3vw, 32px);
  border-top: 1px solid var(--line);
  font-family: var(--font-serif);
  font-size: clamp(21px, 2.6vw, 30px);
  line-height: 1.35;
  color: var(--ink-soft);
}

/* =========================================================
   10. BRAND STORY
   ========================================================= */
.brand-inner { text-align: center; max-width: 860px; }
.brand-inner .section-title { max-width: none; margin-inline: auto; }
.x-mark-large {
  width: min(180px, 46vw);
  height: auto;
  margin-bottom: 26px;
}
.x-mark-large .x-b { stroke-width: 6; }
.x-mark-large .x-a,
.x-mark-large .x-a-head { stroke-width: 7; }
.formula {
  margin-top: 30px;
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.8vw, 32px);
  color: var(--ink-soft);
}
.formula-result {
  margin-top: 8px;
  font-size: clamp(30px, 4.6vw, 52px);
  color: var(--accent);
}

/* =========================================================
   11. CONTACT
   ========================================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}
.contact-points { margin-top: 28px; }
.contact-points li {
  position: relative;
  padding-left: 24px;
  padding-block: 7px;
  color: var(--ink-soft);
}
.contact-points li::before {
  content: "";
  position: absolute;
  left: 0; top: 18px;
  width: 12px; height: 2px;
  background: var(--accent);
}

.contact-form-wrap {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: clamp(24px, 3vw, 38px);
}
.field { margin-bottom: 22px; border: 0; padding: 0; }
.field label,
.field legend {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
  padding: 0;
}
.req { color: var(--accent); }

.field input,
.field textarea {
  width: 100%;
  padding: 10px 2px;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  border-radius: 0;
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--ink);
  transition: border-color .2s var(--ease);
}
.field textarea { resize: vertical; min-height: 96px; }
.field input::placeholder { color: #9aa7b4; }
.field input:hover,
.field textarea:hover { border-bottom-color: var(--accent); }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-bottom-color: var(--accent);
  border-bottom-width: 2px;
  padding-bottom: 9px;
}
.field input[aria-invalid="true"] { border-bottom-color: #c0392b; }

.radio-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.radio {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 18px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  cursor: pointer;
  font-size: 15px;
  color: var(--ink-soft);
  transition: border-color .2s var(--ease), background-color .2s var(--ease), color .2s var(--ease);
}
.radio input { accent-color: var(--accent); margin: 0; }
.radio:hover { border-color: var(--accent); }
.radio:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-dark);
}
.field-choice legend { margin-bottom: 0; }

.field-error {
  min-height: 18px;
  margin-top: 6px;
  font-size: 13px;
  color: #c0392b;
}
.form-status {
  margin-top: 14px;
  font-size: 15px;
  color: var(--accent-dark);
}
.form-status.is-error { color: #c0392b; }

/* =========================================================
   12. FINAL CTA
   ========================================================= */
.final-cta {
  background: var(--accent-soft);
  border-top: 1px solid #d8e5fb;
  padding-block: clamp(64px, 8vw, 112px);
  text-align: center;
}
.final-inner { display: grid; justify-items: center; }
.x-mark-cta { width: 100px; height: 100px; margin-bottom: 24px; }
.x-mark-cta .x-b { stroke-width: 6.5; }
.x-mark-cta .x-a,
.x-mark-cta .x-a-head { stroke-width: 7.5; }
.final-cta h2 {
  font-size: clamp(30px, 4.6vw, 52px);
  font-weight: 600;
  letter-spacing: -.02em;
}
.final-sub {
  margin-top: 12px;
  font-family: var(--font-serif);
  font-size: clamp(24px, 3.4vw, 38px);
  color: var(--accent);
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
  background: var(--ink);
  color: #dfe7ef;
  padding-top: clamp(48px, 6vw, 72px);
}
.site-footer .logo-word { color: #fff; }
.site-footer .x-mark .x-b { stroke: #ffffff; opacity: .4; }
.site-footer .x-mark .x-a,
.site-footer .x-mark .x-a-head { stroke: #7fa9ef; }
.site-footer .logo-x { color: #7fa9ef; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: clamp(36px, 5vw, 56px);
}
.footer-tagline {
  margin-top: 14px;
  max-width: 32ch;
  font-size: 15px;
  color: #9fb0c1;
}
.footer-heading {
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: #7fa9ef;
  margin-bottom: 12px;
}
.footer-col a {
  display: block;
  padding: 6px 0;
  font-size: 15px;
  color: #c8d4e0;
  transition: color .2s var(--ease), transform .2s var(--ease);
}
.footer-col a:hover { color: #fff; transform: translateX(3px); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-block: 22px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  font-size: 14px;
  color: #90a2b4;
}

/* =========================================================
   SCROLL REVEAL
   ========================================================= */
.js .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
  will-change: opacity, transform;
}
.js .reveal.is-visible { opacity: 1; transform: none; }

/* =========================================================
   SUB-PAGE HERO + CTA BAND
   ========================================================= */
.page-hero {
  padding-block: clamp(52px, 6.5vw, 96px) clamp(40px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(760px 340px at 92% -20%, var(--accent-soft), transparent 70%),
    var(--bg);
}
.page-hero h1 {
  font-size: clamp(34px, 5.2vw, 60px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -.03em;
  max-width: 18ch;
}
.page-hero .lead {
  margin-top: 20px;
  max-width: 58ch;
  font-size: clamp(17px, 1.8vw, 20px);
  color: var(--ink-soft);
}
.page-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}
.page-jump a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: #fff;
  font-family: var(--font-ui);
  font-size: 14px;
  color: var(--ink-soft);
  transition: border-color .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}
.page-jump a:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

.cta-band {
  background: var(--accent-soft);
  border-top: 1px solid #d8e5fb;
  padding-block: clamp(56px, 7vw, 92px);
  text-align: center;
}
.cta-band h2 {
  font-size: clamp(26px, 3.6vw, 40px);
  font-weight: 600;
  letter-spacing: -.02em;
  max-width: 20ch;
  margin-inline: auto;
}
.cta-band p {
  margin-top: 14px;
  color: var(--muted);
  font-size: clamp(16px, 1.7vw, 18px);
}
.cta-band .btn { margin-top: 26px; }

/* card that links onward to a sub-page */
.split-card-link { display: block; }
.card-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
}
.card-more::after {
  content: "";
  width: 18px; height: 8px;
  background: var(--accent);
  clip-path: polygon(0 3px, 11px 3px, 11px 0, 18px 4px, 11px 8px, 11px 5px, 0 5px);
  transition: transform .25s var(--ease);
}
.split-card-link:hover .card-more::after { transform: translateX(5px); }

/* combined Google + Meta panel */
.combined-panel {
  margin-top: clamp(24px, 3vw, 40px);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(26px, 3vw, 42px);
  box-shadow: var(--shadow-sm);
  scroll-margin-top: calc(var(--header-h) + 16px);
}
.combined-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
  margin-top: 20px;
}
.combined-list li {
  position: relative;
  padding-left: 24px;
  padding-block: 8px;
  color: var(--ink-soft);
}
.combined-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 19px;
  width: 12px; height: 2px;
  background: var(--accent);
}
/* the diagram sits in a narrower column here, so scale its labels up */
.combined-grid .converge-svg .node-title { font-size: 25px; }
.combined-grid .converge-svg .node-sub { font-size: 16px; }
.combined-grid .converge-svg .node-brand { font-size: 27px; }

/* =========================================================
   LEGAL PAGES
   ========================================================= */
.legal-hero {
  padding-block: clamp(48px, 6vw, 84px) clamp(24px, 3vw, 36px);
  border-bottom: 1px solid var(--line);
  background: var(--bg-alt);
}
.legal-hero h1 {
  font-size: clamp(30px, 4.4vw, 48px);
  font-weight: 600;
  letter-spacing: -.02em;
}
.legal-updated {
  margin-top: 12px;
  font-size: 15px;
  color: var(--muted);
}
.legal-body { max-width: 780px; }
.legal-body h2 {
  margin-top: clamp(32px, 4vw, 46px);
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 600;
}
.legal-body h2:first-child { margin-top: 0; }
.legal-body p,
.legal-body li { color: var(--ink-soft); }
.legal-body p { margin-top: 14px; }
.legal-body ul { margin-top: 14px; }
.legal-body li {
  position: relative;
  padding-left: 22px;
  padding-block: 5px;
}
.legal-body li::before {
  content: "";
  position: absolute;
  left: 0; top: 16px;
  width: 10px; height: 2px;
  background: var(--accent);
}
.legal-body a { color: var(--accent); text-decoration: underline; }
.legal-note {
  margin-top: clamp(32px, 4vw, 46px);
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 12px;
  background: var(--bg-alt);
  font-size: 15px;
  color: var(--muted);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */

/* laptop */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 460px; }
  .hero .lead { max-width: 60ch; }
}

/* tablet — nav collapses into the menu panel */
@media (max-width: 900px) {
  .primary-nav { display: none; }
  .header-actions { margin-left: auto; }
  .menu-col-mobile { display: block; }
  .menu-grid { grid-template-columns: repeat(2, 1fr); gap: 22px; }
}

@media (max-width: 1023px) {
  .experience-grid { grid-template-columns: 1fr; }
  .cards-3 { grid-template-columns: repeat(2, 1fr); }
}

/* services + contact stack */
@media (max-width: 820px) {
  .services-grid { grid-template-columns: 1fr; gap: 22px; }
  .combined-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --header-h: 68px; }
  .split-cards { grid-template-columns: 1fr; }
  .converge-svg .node-sub { font-size: 14px; }
  .converge-svg .node-title { font-size: 22px; }
}

/* mobile */
@media (max-width: 640px) {
  .menu-grid { grid-template-columns: 1fr; }
  .cards-3 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-brand { grid-column: 1 / -1; }
  .header-cta { display: none; }
  .radio-row { flex-direction: column; align-items: stretch; }
  .radio { justify-content: flex-start; }
}

@media (max-width: 480px) {
  .container { padding-inline: 18px; }
  .step { grid-template-columns: 40px 1fr; gap: 16px; }
  .step-num { width: 40px; height: 40px; font-size: 13px; }
  .steps::before { left: 19px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { justify-content: flex-start; }
  .btn { padding: 13px 22px; }
  .engine-svg .node text { font-size: 17px; }
  .converge-svg .node-sub { font-size: 15px; }
}

/* motion preferences */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .js .reveal { opacity: 1; transform: none; }
}