/* ChartNav MD — public marketing site
   Brand tokens lifted from the ChartNav product app
   (apps/web/src/styles.css). Med-tech light, restrained, premium. */

:root {
  --cn-bg:           #F4F8FA;
  --cn-bg-alt:       #EEF2F5;
  --cn-surface:      #FFFFFF;
  --cn-surface-alt:  #F8FBFC;

  --cn-line:         #DCE5EA;
  --cn-line-strong:  #C4D2D9;

  --cn-fg:           #0F172A;
  --cn-muted:        #475569;
  --cn-dim:          #64748B;

  --cn-primary:        #0B6E79;
  --cn-primary-hover:  #095A63;
  --cn-primary-tint:   #D6F0F3;
  --cn-primary-soft:   #EEF8FA;

  --cn-accent:         #14B8A6;
  --cn-pulse:          #DC2626;

  --cn-success:      #15803D;
  --cn-warning:      #B45309;
  --cn-warning-tint: #FEF3C7;

  --cn-radius-sm: 6px;
  --cn-radius-md: 10px;
  --cn-radius-lg: 14px;
  --cn-radius-pill: 9999px;

  --cn-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 1px rgba(15, 23, 42, 0.03);
  --cn-shadow-md: 0 4px 16px rgba(11, 110, 121, 0.08), 0 1px 3px rgba(15, 23, 42, 0.05);
  --cn-shadow-lg: 0 20px 60px rgba(15, 23, 42, 0.12);

  --max-w: 74rem;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--cn-fg);
  background: var(--cn-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--cn-primary); text-decoration: none; }
a:hover { color: var(--cn-primary-hover); }
img, svg { max-width: 100%; display: block; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem; }
.container--sm { max-width: 56rem; }
.container--xs { max-width: 40rem; }

/* Branded ChartNav wordmark in body text — "Chart" slate, "Nav" teal */
.brand-text { font-weight: 600; letter-spacing: -0.005em; white-space: nowrap; }
.brand-text .chart { color: var(--cn-fg); }
.brand-text .nav { color: var(--cn-primary); }

/* Eyebrow */
.eyebrow {
  display: inline-block;
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cn-primary);
  font-weight: 600;
  margin-bottom: 0.875rem;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem; font-weight: 500;
  border-radius: var(--cn-radius-md);
  border: 1px solid transparent;
  font-family: inherit; cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s, box-shadow 0.15s;
  text-decoration: none;
}
.btn--primary { background: var(--cn-primary); color: #fff; }
.btn--primary:hover { background: var(--cn-primary-hover); color: #fff; }
.btn--ghost { background: var(--cn-surface); color: var(--cn-fg); border-color: var(--cn-line); }
.btn--ghost:hover { border-color: var(--cn-primary); color: var(--cn-primary); }

/* ── Header / Nav ───────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--cn-line);
}
.site-header__inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0.875rem 1.5rem;
  display: flex; align-items: center; gap: 2rem;
}
.site-header__logo { flex: 0 0 auto; display: inline-flex; align-items: center; }
.site-header__logo img { height: 28px; width: auto; }
.site-header__nav {
  flex: 1; display: flex; align-items: center; gap: 1.75rem;
  list-style: none;
}
.site-header__nav a {
  color: var(--cn-muted); font-size: 0.9375rem; font-weight: 500;
  padding: 0.25rem 0; position: relative;
}
.site-header__nav a:hover, .site-header__nav a.is-active { color: var(--cn-fg); }
.site-header__nav a.is-active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1.05rem;
  height: 2px; background: var(--cn-primary);
}
.site-header__cta { flex: 0 0 auto; }
.site-header__menu-btn {
  display: none; background: none; border: 1px solid var(--cn-line);
  padding: 0.5rem 0.75rem; border-radius: var(--cn-radius-sm); cursor: pointer;
  font: inherit; color: var(--cn-fg);
}
@media (max-width: 880px) {
  .site-header__inner { gap: 1rem; }
  .site-header__nav { display: none; }
  .site-header__menu-btn { display: inline-flex; }
  .site-header[data-open="true"] .site-header__nav {
    display: flex; flex-direction: column; gap: 0.75rem; align-items: flex-start;
    flex-basis: 100%; padding: 0.75rem 0 0.25rem;
    border-top: 1px solid var(--cn-line);
  }
  .site-header[data-open="true"] .site-header__inner { flex-wrap: wrap; }
  .site-header__nav a.is-active::after { display: none; }
}

/* ── Sections ───────────────────────────────────────────────── */
section { padding: 5rem 0; }
@media (max-width: 600px) { section { padding: 3.25rem 0; } }

.section-h {
  font-size: clamp(1.75rem, 3vw, 2.375rem);
  font-weight: 700; letter-spacing: -0.025em; line-height: 1.15;
  color: var(--cn-fg);
  margin: 0 0 1rem;
}
.section-sub {
  font-size: 1.0625rem; color: var(--cn-muted); line-height: 1.65;
  max-width: 60ch; margin-bottom: 2rem;
}

/* ── Hero ───────────────────────────────────────────────────── */
.hero { padding: 6rem 0 5rem; background: linear-gradient(180deg, var(--cn-surface) 0%, var(--cn-bg) 100%); }
@media (max-width: 600px) { .hero { padding: 4rem 0 3.25rem; } }
.hero__h1 {
  font-size: clamp(2.125rem, 4.5vw, 3.5rem); font-weight: 700;
  letter-spacing: -0.03em; line-height: 1.08;
  max-width: 22ch; margin: 0 0 1.25rem;
}
.hero__sub {
  font-size: 1.125rem; line-height: 1.6; color: var(--cn-muted);
  max-width: 56ch; margin: 0 0 2rem;
}
.hero__ctas { display: flex; gap: 0.875rem; flex-wrap: wrap; }
.hero__chips {
  margin-top: 2.5rem; display: flex; gap: 0.625rem; flex-wrap: wrap;
}
.chip {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-size: 0.75rem; letter-spacing: 0.04em; color: var(--cn-muted);
  background: var(--cn-surface); border: 1px solid var(--cn-line);
  padding: 0.4rem 0.75rem; border-radius: var(--cn-radius-pill);
}
.chip::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--cn-accent);
}

/* ── Savings band — soft teal tint, draws the eye ──────────── */
.savings {
  background: linear-gradient(180deg, var(--cn-primary-soft) 0%, var(--cn-bg) 100%);
  border-top: 1px solid var(--cn-primary-tint);
  border-bottom: 1px solid var(--cn-line);
}
.savings .eyebrow { color: var(--cn-pulse); }
.savings .card { border-color: var(--cn-primary-tint); }
.savings .card:hover { border-color: var(--cn-primary); }

/* ── Scroll-reveal animation (lightweight, motion-safe) ────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}
[data-reveal][data-revealed="true"] {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1 !important; transform: none !important; transition: none !important; }
}

/* Card transitions — gentle lift + scroll-linked parallax. */
.card, .vgallery__card, .ba-col {
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}
@media (prefers-reduced-motion: reduce) {
  .card, .vgallery__card, .ba-col {
    transform: none !important;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
  }
  .card:hover, .vgallery__card:hover { transform: none !important; }
}

/* ── Video showcase ─────────────────────────────────────────── */
.vshow {
  background: var(--cn-surface);
  border-bottom: 1px solid var(--cn-line);
  padding-bottom: 3.5rem;
}
@media (max-width: 600px) { .vshow { padding-bottom: 2.5rem; } }
/* Hover-revealed prev/next arrows on the video frame */
.vshow__frame { isolation: isolate; }
.vshow__nav {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px;
  border: 1px solid var(--cn-line);
  background: rgba(255, 255, 255, 0.92);
  color: var(--cn-fg);
  border-radius: 999px;
  font-size: 1.25rem; font-family: inherit; font-weight: 400;
  cursor: pointer; padding: 0;
  display: inline-flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s ease, background 0.15s ease, transform 0.2s ease;
  z-index: 2;
  backdrop-filter: blur(4px);
  box-shadow: var(--cn-shadow-sm);
}
.vshow__nav:hover { background: var(--cn-primary); color: #fff; border-color: var(--cn-primary); }
.vshow__nav--prev { left: 0.875rem; }
.vshow__nav--next { right: 0.875rem; }
.vshow__frame:hover .vshow__nav,
.vshow__frame:focus-within .vshow__nav {
  opacity: 1; pointer-events: auto;
}
@media (max-width: 720px) {
  .vshow__nav { opacity: 1; pointer-events: auto; width: 36px; height: 36px; font-size: 1rem; }
}
.vshow__layout {
  display: grid; grid-template-columns: 1fr 1.4fr;
  gap: 2.5rem; align-items: center; margin-top: 2rem;
}
@media (max-width: 880px) { .vshow__layout { grid-template-columns: 1fr; gap: 1.5rem; } }
.vshow__copy { max-width: 36ch; }
.vshow__tag {
  display: inline-block; font-size: 0.6875rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--cn-primary); font-weight: 600;
  background: var(--cn-primary-soft); padding: 0.25rem 0.75rem;
  border-radius: var(--cn-radius-pill); margin-bottom: 0.875rem;
}
.vshow__title {
  font-size: 1.375rem; font-weight: 600; color: var(--cn-fg);
  letter-spacing: -0.01em; line-height: 1.25; margin-bottom: 0.625rem;
}
.vshow__desc { font-size: 0.9375rem; color: var(--cn-muted); line-height: 1.6; }
/* Premium video frame: rounded, layered, teal/red accent plates,
   subtle scroll-linked parallax via --cn-parallax CSS variable.
   Clips video content via overflow: hidden; offset accent plates
   are drawn as box-shadows (stay outside the clip but inside layout). */
.vshow__frame {
  --cn-parallax: 0px;
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--cn-bg-alt);
  border-radius: 22px;
  overflow: hidden;
  margin: 14px 18px 22px 14px; /* room for offset plates to peek out */
  transform: translateY(var(--cn-parallax));
  box-shadow:
    /* Teal accent plate behind, offset down-right */
    16px 16px 0 -4px var(--cn-primary-tint),
    /* Red accent plate behind, offset up-left (smaller) */
    -10px -10px 0 -4px rgba(220, 38, 38, 0.18),
    /* Hairline interior ring (teal) for definition */
    inset 0 0 0 1px var(--cn-line),
    /* Soft floor shadow for lift */
    0 1px 2px rgba(15, 23, 42, 0.04),
    0 22px 50px -10px rgba(15, 23, 42, 0.20);
  transition:
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}
.vshow__frame:hover {
  transform: translateY(calc(var(--cn-parallax) - 4px));
  box-shadow:
    20px 20px 0 -4px var(--cn-primary-tint),
    -14px -14px 0 -4px rgba(220, 38, 38, 0.22),
    inset 0 0 0 1px var(--cn-primary),
    0 1px 2px rgba(15, 23, 42, 0.04),
    0 32px 64px -14px rgba(15, 23, 42, 0.26);
}
@media (max-width: 720px) {
  .vshow__frame {
    margin: 10px 14px 16px 10px;
    border-radius: 18px;
    box-shadow:
      10px 10px 0 -4px var(--cn-primary-tint),
      -7px -7px 0 -4px rgba(220, 38, 38, 0.18),
      inset 0 0 0 1px var(--cn-line),
      0 1px 2px rgba(15, 23, 42, 0.04),
      0 14px 32px -8px rgba(15, 23, 42, 0.18);
  }
}
@media (prefers-reduced-motion: reduce) {
  .vshow__frame { transform: none !important; transition: box-shadow 0.2s ease; }
  .vshow__frame:hover { transform: none !important; }
}
.vshow__video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: 0; transition: opacity 0.4s ease;
  background: var(--cn-bg-alt);
}
.vshow__video.is-active { opacity: 1; }
.vshow__overlay {
  position: absolute; left: 1rem; right: 1rem; bottom: 1rem;
  padding: 0.5rem 0.875rem; border-radius: var(--cn-radius-sm);
  background: rgba(15, 23, 42, 0.78); color: #fff;
  font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.01em;
  pointer-events: none; backdrop-filter: blur(6px);
}
.vshow__thumbs {
  display: grid; grid-template-columns: repeat(6, 1fr);
  gap: 0.625rem; margin-top: 1.25rem;
}
@media (max-width: 720px) { .vshow__thumbs { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 420px) { .vshow__thumbs { grid-template-columns: repeat(2, 1fr); } }
.vshow__thumb {
  font-size: 0.75rem; letter-spacing: 0.02em; color: var(--cn-muted);
  background: var(--cn-surface); border: 1px solid var(--cn-line);
  border-radius: var(--cn-radius-sm); padding: 0.5rem 0.625rem;
  cursor: pointer; text-align: left; font-family: inherit;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.vshow__thumb:hover { border-color: var(--cn-primary); color: var(--cn-fg); }
.vshow__thumb.is-active {
  border-color: var(--cn-primary); color: var(--cn-primary);
  background: var(--cn-primary-soft);
}
.vshow__thumb-num {
  display: block; font-weight: 600; color: var(--cn-primary);
  font-size: 0.6875rem; letter-spacing: 0.08em; margin-bottom: 0.125rem;
}
.vshow__thumb.is-active .vshow__thumb-num { color: var(--cn-primary-hover); }

/* ── Video gallery (4-card feature workflows) ──────────────── */
/* Reads as a continuation of the .vshow walkthrough above:
   tighter top padding, sub-heading-scale h2, soft connection. */
.vgallery {
  background: var(--cn-bg);
  padding: 2rem 0 5rem;
  border-bottom: 1px solid var(--cn-line);
}
@media (max-width: 600px) { .vgallery { padding: 1.5rem 0 3.25rem; } }
.vgallery .eyebrow { margin-bottom: 0.5rem; }
.vgallery .section-h {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0 0 0.5rem;
}
.vgallery .section-sub { font-size: 0.9375rem; max-width: 56ch; }
.vgallery__grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem; margin-top: 1.75rem;
  align-items: stretch;
}
@media (max-width: 880px) { .vgallery__grid { grid-template-columns: 1fr; gap: 1rem; } }
.vgallery__card {
  background: var(--cn-surface); border: 1px solid var(--cn-line);
  border-radius: var(--cn-radius-lg); overflow: hidden;
  box-shadow: var(--cn-shadow-sm);
  display: flex; flex-direction: column;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.vgallery__card:hover { border-color: var(--cn-line-strong); box-shadow: var(--cn-shadow-md); }
.vgallery__media {
  position: relative; aspect-ratio: 16 / 10;
  background: var(--cn-bg-alt);
  flex: 0 0 auto;
}
.vgallery__media video {
  width: 100%; height: 100%; display: block; object-fit: cover;
  background: var(--cn-bg-alt);
}
.vgallery__body {
  padding: 1.125rem 1.25rem 1.25rem;
  display: flex; flex-direction: column; flex: 1 1 auto;
}
.vgallery__tag {
  align-self: flex-start;
  font-size: 0.6875rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--cn-primary); font-weight: 600;
  background: var(--cn-primary-soft); padding: 0.2rem 0.625rem;
  border-radius: var(--cn-radius-pill); margin-bottom: 0.625rem;
}
.vgallery__h {
  font-size: 1.0625rem; font-weight: 600; color: var(--cn-fg);
  letter-spacing: -0.005em; margin-bottom: 0.375rem; line-height: 1.3;
}
.vgallery__p {
  font-size: 0.875rem; color: var(--cn-muted); line-height: 1.55;
  margin: 0;
}

/* ── Cards ──────────────────────────────────────────────────── */
.card-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem;
  margin-top: 2.5rem;
}
@media (max-width: 880px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .card-grid { grid-template-columns: 1fr; } }

/* Cards: teal-bordered by default, every 3rd card carries a red accent.
   --cn-card-parallax (px) is set per-card by reveal.js for scroll-linked float. */
.card {
  --cn-card-parallax: 0px;
  background: var(--cn-surface);
  border: 1px solid var(--cn-primary-tint);
  border-radius: var(--cn-radius-lg);
  padding: 1.5rem;
  transform: translateY(var(--cn-card-parallax));
}
.card-grid > .card:nth-child(3n) {
  border-color: rgba(220, 38, 38, 0.30);
}
.card:hover {
  border-color: var(--cn-primary);
  box-shadow: var(--cn-shadow-md);
  transform: translateY(calc(var(--cn-card-parallax) - 3px));
}
.card-grid > .card:nth-child(3n):hover {
  border-color: var(--cn-pulse);
}
/* Before/After columns: keep their accent, add parallax variable. */
.ba-col {
  --cn-card-parallax: 0px;
  transform: translateY(var(--cn-card-parallax));
}
.card__num {
  font-size: 0.6875rem; letter-spacing: 0.14em; color: var(--cn-primary);
  font-weight: 600; margin-bottom: 0.625rem;
}
.card__h {
  font-size: 1.0625rem; font-weight: 600; color: var(--cn-fg);
  margin-bottom: 0.5rem; letter-spacing: -0.005em;
}
.card__p { font-size: 0.9375rem; color: var(--cn-muted); line-height: 1.6; }

/* ── Before / After ─────────────────────────────────────────── */
.ba { background: var(--cn-surface); }
.ba-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem;
  margin-top: 2.5rem;
}
@media (max-width: 720px) { .ba-grid { grid-template-columns: 1fr; } }
.ba-col {
  background: var(--cn-surface-alt); border: 1px solid var(--cn-line);
  border-radius: var(--cn-radius-lg); padding: 1.5rem 1.5rem 1.25rem;
}
.ba-col--before { border-left: 3px solid var(--cn-pulse); }
.ba-col--after  { border-left: 3px solid var(--cn-primary); background: var(--cn-primary-soft); border-color: var(--cn-primary-tint); }
.ba-col__h {
  font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase;
  font-weight: 600; margin-bottom: 1rem;
}
.ba-col--before .ba-col__h { color: var(--cn-pulse); }
.ba-col--after  .ba-col__h { color: var(--cn-primary); }
.ba-col ul { list-style: none; display: grid; gap: 0.625rem; }
.ba-col li {
  font-size: 0.9375rem; color: var(--cn-muted); line-height: 1.5;
  padding-left: 1.375rem; position: relative;
}
.ba-col--before li::before {
  content: "×"; position: absolute; left: 0; top: -1px;
  color: var(--cn-pulse); font-weight: 700; font-size: 1.125rem; line-height: 1;
}
.ba-col--after li::before {
  content: "→"; position: absolute; left: 0; top: 0;
  color: var(--cn-primary); font-weight: 700;
}

/* ── Strip / callout ────────────────────────────────────────── */
.strip {
  background: var(--cn-primary-soft);
  border-top: 1px solid var(--cn-primary-tint);
  border-bottom: 1px solid var(--cn-primary-tint);
  padding: 1.25rem 0;
}
.strip__inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; flex-wrap: wrap;
}
.strip__copy { font-size: 0.9375rem; color: var(--cn-fg); max-width: 64ch; margin: 0; }
.strip__copy strong { color: var(--cn-primary); font-weight: 600; }
.strip__link {
  font-size: 0.875rem; font-weight: 500; color: var(--cn-primary);
  white-space: nowrap; flex-shrink: 0;
}

/* ── FAQ (details/summary) ─────────────────────────────────── */
.faq-list { max-width: 56rem; margin: 2rem 0 0; }
.faq-list details {
  border-top: 1px solid var(--cn-line); padding: 1rem 0;
}
.faq-list details:last-child { border-bottom: 1px solid var(--cn-line); }
.faq-list summary {
  cursor: pointer; list-style: none;
  font-size: 1rem; font-weight: 500; color: var(--cn-fg);
  display: flex; justify-content: space-between; align-items: center;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+"; color: var(--cn-primary); font-weight: 400; font-size: 1.25rem;
}
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p {
  font-size: 0.9375rem; color: var(--cn-muted); line-height: 1.65;
  margin-top: 0.625rem; max-width: 64ch;
}

/* ── No-claim cards ─────────────────────────────────────────── */
.noclaim { background: var(--cn-bg-alt); }
.noclaim-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
  margin-top: 2rem;
}
@media (max-width: 880px) { .noclaim-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .noclaim-grid { grid-template-columns: 1fr; } }
.noclaim-card {
  background: var(--cn-surface); border: 1px solid var(--cn-line);
  border-radius: var(--cn-radius-md); padding: 1.125rem 1.25rem;
}
.noclaim-card__label {
  font-size: 0.6875rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--cn-pulse); font-weight: 600; margin-bottom: 0.5rem;
}
.noclaim-card__body { font-size: 0.875rem; color: var(--cn-muted); line-height: 1.55; }

/* ── Assessment form ───────────────────────────────────────── */
.assess { background: var(--cn-surface); }
.assess__form {
  max-width: 36rem; margin: 0 auto; display: flex; flex-direction: column;
  gap: 1rem; text-align: left;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 480px) { .form-row { grid-template-columns: 1fr; } }
.field label {
  display: block; font-size: 0.75rem; letter-spacing: 0.04em;
  color: var(--cn-muted); font-weight: 500; margin-bottom: 0.375rem;
}
.field input, .field select {
  width: 100%; background: var(--cn-surface); border: 1px solid var(--cn-line);
  color: var(--cn-fg); padding: 0.625rem 0.875rem; font-size: 0.9375rem;
  font-family: inherit; border-radius: var(--cn-radius-sm); outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.field input:focus, .field select:focus {
  border-color: var(--cn-primary); box-shadow: 0 0 0 3px var(--cn-primary-tint);
}
.field input::placeholder { color: var(--cn-dim); }
.ohnohoney { opacity: 0; position: absolute; top: 0; left: 0; height: 0; width: 0; z-index: -1; }
.form__notice { font-size: 0.75rem; color: var(--cn-dim); line-height: 1.5; text-align: center; }
#form-success {
  display: none; max-width: 36rem; margin: 0 auto;
  padding: 1.5rem; background: var(--cn-primary-soft);
  border: 1px solid var(--cn-primary-tint); border-radius: var(--cn-radius-md);
}
#form-success.visible { display: block; }
#form-success h3 { font-size: 1.125rem; font-weight: 600; margin-bottom: 0.375rem; color: var(--cn-fg); }
#form-success p  { font-size: 0.9375rem; color: var(--cn-muted); }

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer {
  background: var(--cn-surface); border-top: 1px solid var(--cn-line);
  padding: 2.5rem 0;
}
.site-footer__inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}
.site-footer__brand { display: inline-flex; align-items: center; gap: 0.625rem; }
.site-footer__brand img { height: 22px; width: auto; }
.site-footer__links { list-style: none; display: flex; gap: 1.25rem; flex-wrap: wrap; }
.site-footer__links a { font-size: 0.875rem; color: var(--cn-muted); }
.site-footer__links a:hover { color: var(--cn-primary); }
.site-footer__copy { font-size: 0.75rem; color: var(--cn-dim); width: 100%; padding-top: 0.5rem; }

/* ── Footer language toggle (Phase 19K) ─────────────────────
   Compact segmented English / Español pill mounted into every
   public-page footer by /lang-toggle.js. Footer-only — no header
   chrome, no floating widget. Teal active state, subtle red/burgundy
   hover/focus accent matching the existing brand tokens. */
.site-footer__lang {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.8125rem;
  color: var(--cn-muted);
  width: 100%;
  padding-top: 0.5rem;
  flex-wrap: wrap;
}
.site-footer__lang-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cn-dim);
}
.site-footer__lang-pill {
  display: inline-flex;
  align-items: stretch;
  border: 1px solid var(--cn-line);
  border-radius: 9999px;
  background: var(--cn-bg);
  padding: 2px;
  overflow: hidden;
}
.site-footer__lang-btn {
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  border: 0;
  cursor: pointer;
  font: inherit;
  font-size: 0.8125rem;
  color: var(--cn-muted);
  padding: 0.3125rem 0.875rem;
  border-radius: 9999px;
  letter-spacing: 0.005em;
  transition: background-color 0.15s ease, color 0.15s ease,
              box-shadow 0.15s ease;
}
.site-footer__lang-btn:hover,
.site-footer__lang-btn:focus-visible {
  /* Subtle red/burgundy accent on hover/focus — uses the existing
     --cn-pulse token (clinical red) so the cue picks up the
     ChartNav cross / red accent already in the brand. */
  color: var(--cn-pulse, #DC2626);
  background: rgba(220, 38, 38, 0.06);
}
.site-footer__lang-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.25);
}
.site-footer__lang-btn.is-active {
  /* Active language uses ChartNav teal. */
  background: var(--cn-primary);
  color: #ffffff;
  font-weight: 600;
}
.site-footer__lang-btn.is-active:hover,
.site-footer__lang-btn.is-active:focus-visible {
  background: var(--cn-primary-hover, #095A63);
  color: #ffffff;
}
@media (max-width: 540px) {
  .site-footer__lang { gap: 0.5rem; }
  .site-footer__lang-label { width: 100%; }
}

/* ── Page intro band ───────────────────────────────────────── */
.page-intro {
  padding: 4rem 0 2.5rem;
  background: linear-gradient(180deg, var(--cn-surface) 0%, var(--cn-bg) 100%);
  border-bottom: 1px solid var(--cn-line);
}
.page-intro__h1 {
  font-size: clamp(1.875rem, 3.5vw, 2.75rem);
  font-weight: 700; letter-spacing: -0.025em; line-height: 1.1;
  max-width: 22ch; margin: 0 0 0.875rem;
}
.page-intro__sub {
  font-size: 1.0625rem; color: var(--cn-muted); max-width: 60ch; line-height: 1.6;
}

/* Generic prose */
.prose p { font-size: 1rem; color: var(--cn-muted); line-height: 1.65; margin-bottom: 1rem; max-width: 64ch; }
.prose h2 { font-size: 1.5rem; font-weight: 600; color: var(--cn-fg); margin: 2rem 0 0.75rem; letter-spacing: -0.015em; }
.prose h3 { font-size: 1.125rem; font-weight: 600; color: var(--cn-fg); margin: 1.5rem 0 0.5rem; }
.prose ul { padding-left: 1.25rem; margin-bottom: 1rem; color: var(--cn-muted); }
.prose ul li { margin-bottom: 0.375rem; line-height: 1.55; }