/* MoldCure — Homepage styles
 * Page-specific styles for index.html.
 * Layered on top of colors_and_type.css and site.css.
 *
 * Shared components (`.vapure*`, `section.svc-section`, hero chrome,
 * `.surface-grid-dark`, `.card-on-dark`, etc.) live in site.css. This
 * file owns only the patterns unique to the homepage's composition.
 */

/* ── Hero (video background, content centered) ──────────────────── */
.svc-hero-wrap {
  position: relative;
  background: var(--color-brand-primary-800);
  color: #fff;
  overflow: hidden;
}
.svc-hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  filter: grayscale(25%) brightness(0.9);
}
.svc-hero-tint {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(ellipse 60% 40% at 50% 100%, rgba(0,166,81,0.18), transparent 60%),
    radial-gradient(ellipse 50% 40% at 50% 0%, rgba(31,59,115,0.55), transparent 65%),
    linear-gradient(180deg, rgba(10,21,48,0.78) 0%, rgba(10,21,48,0.55) 35%, rgba(10,21,48,0.78) 100%);
}
.svc-hero-grid {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(var(--color-white-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-white-grid) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: center;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 30%, transparent 80%);
  opacity: 0.5;
  pointer-events: none;
}

/* Promo bar + nav, dark-glass variant */
.svc-hero-wrap .promo-bar {
  background: var(--color-white-surface);
  background-image: none;
  border-bottom: 1px solid var(--color-white-surface-hi);
  color: rgba(255,255,255,0.88);
  position: relative; z-index: 3;
}
.svc-hero-wrap .promo-bar a {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.svc-hero-wrap .nav-wrap {
  position: relative;
  z-index: 4;
}
.svc-hero-wrap .navbar {
  background: rgba(10,21,48,0.55);
  border-bottom: 1px solid var(--color-white-surface-hi);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.svc-hero-wrap .nav-links a { color: rgba(255,255,255,0.7); }
.svc-hero-wrap .nav-links a:hover { color: #fff; }
.svc-hero-wrap .nav-phone { color: #fff; }

/* Centered content over video.
   `.svc-hero-inner` shares the element with `.container`, so we set
   only padding-top/padding-bottom here and let the container's
   responsive horizontal padding flow through. Using `padding` shorthand
   would wipe `.container`'s side padding on mobile and leave text
   touching the screen edge. */
.svc-hero-inner {
  position: relative;
  z-index: 2;
  min-height: 78vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 7rem;
  padding-bottom: 6rem;
  text-align: center;
}
.svc-hero-stack {
  max-width: 880px;
  margin: 0 auto;
}
.svc-hero-breadcrumb {
  display: flex; align-items: center; justify-content: center;
  gap: 0.5rem;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 700;
  color: rgba(255,255,255,0.55);
  margin-bottom: 1.75rem;
}
.svc-hero-breadcrumb a { color: rgba(255,255,255,0.7); }
.svc-hero-breadcrumb a:hover { color: #fff; }
.svc-hero-breadcrumb .sep { width: 12px; height: 12px; opacity: 0.4; }
.svc-hero-breadcrumb .current { color: #fff; }

.svc-hero-stack .eyebrow-pill { margin-bottom: 2rem; }
.svc-hero-stack h1 {
  font-size: clamp(2.5rem, 5.4vw, 4.75rem);
  letter-spacing: -0.045em;
  line-height: 1.02;
  color: #fff;
  margin-bottom: 1.5rem;
  text-wrap: balance;
}
.svc-hero-stack h1 .t-gradient {
  background-image: linear-gradient(90deg, #14b965 0%, #4ade80 55%, #a7f3d0 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.svc-hero-stack .t-lead {
  color: var(--color-white-text-lead);
  font-size: 1.25rem;
  max-width: 60ch;
  margin: 0 auto 2.5rem;
}
.svc-hero-ctas {
  display: flex; justify-content: center;
  flex-wrap: wrap; gap: 0.75rem;
}

/* Hero sub-headline (proof beat between H1 and lead) */
.svc-hero-stack .hero-sub {
  font-size: 0.9375rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-white-text-muted);
  margin: -0.5rem 0 2rem;
}
.svc-hero-stack .hero-sub .sep {
  margin: 0 0.25rem;
  opacity: 0.45;
}

/* Hero micro-proof line (small text under CTAs) */
.svc-hero-microproof {
  margin-top: 1.75rem;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.4rem 1.25rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-white-text-muted);
  letter-spacing: 0.01em;
}
.svc-hero-microproof span { display: inline-flex; align-items: center; gap: 0.4rem; }
.svc-hero-microproof span + span::before {
  content: "·";
  margin-right: 1.25rem;
  margin-left: -1rem;
  opacity: 0.45;
  color: var(--color-white-text-muted);
}
.svc-hero-microproof .star { color: var(--color-accent-gold); }
@media (max-width: 640px) {
  .svc-hero-microproof { gap: 0.3rem; }
  .svc-hero-microproof span + span::before { display: none; }
}

/* Trust stats — centered, divided */
.svc-hero-trust {
  display: inline-grid;
  grid-template-columns: repeat(3, auto);
  gap: 0;
  padding-top: 2.25rem;
  border-top: 1px solid var(--color-white-divider);
  text-align: left;
}
.svc-hero-trust > div {
  padding: 0 2.5rem;
  border-right: 1px solid var(--color-white-border);
  display: flex; flex-direction: column; gap: 0.4rem;
}
.svc-hero-trust > div:last-child { border-right: 0; }
.svc-hero-trust > div:first-child { padding-left: 0; }
.svc-hero-trust .num {
  font-size: 2.25rem;
  font-weight: 900;
  letter-spacing: -0.035em;
  line-height: 1;
  color: #fff;
}
.svc-hero-trust .lbl {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 700;
  color: rgba(255,255,255,0.62);
  line-height: 1.4;
  max-width: 18ch;
}

/* ── Numbers strip ─────────────────────────────────────────────── */
.svc-marquee-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-bottom: 1px solid var(--color-border-default);
  background: var(--color-surface-app);
}
.svc-marquee-strip > div {
  padding: 2.5rem 2rem;
  border-right: 1px solid var(--color-border-default);
  display: flex; flex-direction: column; gap: 0.5rem;
}
.svc-marquee-strip > div:last-child { border-right: 0; }
.svc-marquee-strip .num {
  font-size: 2.5rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--color-brand-primary);
}
.svc-marquee-strip .lbl {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 700;
  color: var(--color-text-secondary);
}
.svc-marquee-strip .sub {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-top: 0.25rem;
}

/* ── Mission / story ───────────────────────────────────────────── */
/* Add `.surface-grid-dark` to the section markup to get the 64px grid
   overlay + radial mask. This block owns just the colored background
   and copy chrome. */
.svc-story {
  padding: 6rem 0;
  background: var(--color-brand-primary-900);
  background-image:
    radial-gradient(ellipse 60% 50% at 20% 0%, rgba(0,166,81,0.18), transparent 60%),
    radial-gradient(ellipse 50% 50% at 100% 100%, rgba(42,79,147,0.4), transparent 55%),
    var(--gradient-brand);
  color: #fff;
}
.svc-story-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  align-items: start;
}
.svc-story .eyebrow-pill { position: sticky; top: 5rem; }
.svc-story-body {
  font-size: 2rem;
  line-height: 1.3;
  font-weight: 500;
  letter-spacing: -0.025em;
  color: #fff;
  max-width: 32ch;
  text-wrap: pretty;
}
.svc-story-body .drop {
  float: left;
  font-size: 6.5rem;
  font-weight: 900;
  line-height: 0.85;
  letter-spacing: -0.05em;
  margin: 0.1rem 0.75rem -0.2rem 0;
  background-image: var(--gradient-accent);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.svc-story-body em {
  font-style: italic;
  font-weight: 300;
  color: rgba(255,255,255,0.6);
}
.svc-story-body .story-emphasis {
  font-style: italic;
  font-weight: 500;
  background-image: linear-gradient(90deg, #6ee7a7 0%, #bbf7d0 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.svc-story-coda {
  margin-top: 1.75rem;
  font-size: 1.125rem;
  line-height: 1.5;
  font-style: italic;
  font-weight: 400;
  color: var(--color-white-text-muted);
  max-width: 36ch;
  text-wrap: pretty;
}

/* ── Services overview cards (PureAir-style hover treatment) ──── */
.svc-overview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.svc-overview-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 2.25rem 2rem 2rem;
  background: #fff;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-card);
  color: var(--color-text-primary);
  text-decoration: none;
  transition:
    transform 0.3s var(--ease-out),
    box-shadow 0.3s var(--ease-out),
    border-color 0.3s var(--ease-out);
}
.svc-overview-card.fade-up.soft:hover {
  border-color: var(--color-border-brand-30);
  background:
    linear-gradient(#fff, #fff) padding-box,
    var(--gradient-brand) border-box;
  box-shadow: 0 14px 26px -18px rgba(31,59,115,0.28);
  transform: translateY(-4px);
}
.svc-overview-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: var(--color-surface-subtle);
  color: var(--color-brand-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.35s var(--ease-brand), color 0.35s var(--ease-brand);
}
.svc-overview-icon svg { width: 30px; height: 30px; }
.svc-overview-card.fade-up.soft:hover .svc-overview-icon {
  background: var(--gradient-brand);
  color: #fff;
}
.svc-overview-card h3 {
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--color-text-primary);
}
.svc-overview-card p {
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--color-text-secondary);
  margin: 0;
  flex: 1;
}
.svc-overview-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8125rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-brand-primary);
  margin-top: 0.5rem;
  transition: gap 0.3s var(--ease-brand);
}
.svc-overview-link svg { width: 14px; height: 14px; }
.svc-overview-card:hover .svc-overview-link { gap: 0.7rem; }

/* ── Timeline ──────────────────────────────────────────────────── */
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  position: relative;
  padding-top: 3rem;
}
.timeline::before {
  content: "";
  position: absolute;
  /* Centred on the 56px nodes: 3rem padding-top + 28px (half a node)
     − 1px (half the line height) = 4.6875rem. */
  top: 4.6875rem;
  /* Each step occupies 1/4 of the row; node centers sit at 12.5% and 87.5%. */
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-brand-primary), var(--color-brand-secondary));
  opacity: 0.25;
}
.timeline-step {
  text-align: center;
  position: relative;
  padding: 0 1rem;
}
.timeline-step .node {
  width: 56px; height: 56px;
  background: #fff;
  border: 2px solid var(--color-brand-primary);
  color: var(--color-brand-primary);
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 900;
  font-size: 1.0625rem;
  margin: 0 auto 1.5rem;
  position: relative; z-index: 1;
  box-shadow: 0 0 0 8px var(--color-surface-section);
}
.timeline-step .duration {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 700;
  color: var(--color-brand-secondary);
  margin-bottom: 1.5rem;
}
.timeline-step h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}
.timeline-step p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* ── Science / particle diagram ────────────────────────────────── */
.science-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.science-diagram {
  background: #fff;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-card-lg);
  padding: 3rem;
  box-shadow: var(--shadow-card);
  position: relative;
  aspect-ratio: 1 / 1;
  display: flex; flex-direction: column; justify-content: center;
}
.particle-comparison { display: grid; gap: 1.5rem; }
.particle-row {
  display: grid;
  grid-template-columns: 110px 1fr 64px;
  align-items: center;
  gap: 1rem;
}
.particle-row .lbl {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}
.particle-row .lbl small {
  display: block;
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-top: 0.25rem;
}
.particle-row .bar {
  height: 24px;
  background: var(--color-surface-app);
  border-radius: var(--radius-pill);
  position: relative;
  overflow: hidden;
}
.particle-row .bar .fill {
  height: 100%;
  background-image: var(--gradient-brand);
  border-radius: var(--radius-pill);
  position: relative;
}
.particle-row .bar.green .fill { background-image: var(--gradient-accent); }
.particle-row .size {
  font-size: 0.9375rem;
  font-weight: 800;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
  text-align: right;
}
.particle-row .size small { font-weight: 500; color: var(--color-text-secondary); }
.dot-key {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border-subtle);
  display: flex; align-items: center; gap: 0.75rem;
  font-size: 0.8125rem; color: var(--color-text-secondary);
}
.dot-key strong { color: var(--color-brand-primary); }
.science-copy h2 { margin-bottom: 1.5rem; }
.science-copy .t-lead { margin-bottom: 2rem; }
.science-copy ul {
  list-style: none; padding: 0; margin: 0 0 2rem;
  display: grid; gap: 1rem;
}
.science-copy ul li {
  padding: 1.25rem 1.5rem;
  background: #fff;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  display: flex; align-items: center; gap: 1rem;
}
.science-copy ul li .num-chip {
  flex: 0 0 auto;
  width: 40px; height: 40px;
  background-image: var(--gradient-brand);
  color: #fff;
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 900;
  font-size: 0.9375rem;
  letter-spacing: -0.02em;
}
.science-copy ul li strong {
  display: block; font-size: 1rem;
  color: var(--color-text-primary);
  margin-bottom: 0.15rem;
}
.science-copy ul li p {
  font-size: 0.875rem; margin: 0;
}

/* ── Remediation feature card ──────────────────────────────────── */
.remediation-card {
  background: var(--color-brand-primary);
  background-image:
    radial-gradient(circle at 90% 0%, rgba(0,166,81,0.2), transparent 50%),
    var(--gradient-brand);
  border-radius: var(--radius-card-lg);
  color: #fff;
  padding: 4rem;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.remediation-card .eyebrow-pill.on-dark { margin-bottom: 1.5rem; }
.remediation-card h2 {
  color: #fff;
  font-size: clamp(1.875rem, 3vw, 2.5rem);
  margin-bottom: 1.25rem;
  text-wrap: balance;
}
.remediation-card p {
  color: var(--color-white-text-lead);
  margin-bottom: 2rem;
  max-width: 56ch;
}
.remediation-features {
  list-style: none; padding: 0; margin: 0;
  display: grid; gap: 0.75rem;
}
.remediation-features li {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.875rem 1rem;
  background: var(--color-white-surface);
  border: 1px solid var(--color-white-surface-hi);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.9);
}
.remediation-features svg {
  width: 18px; height: 18px;
  color: var(--color-brand-secondary);
  flex: 0 0 auto;
}
.remediation-features strong { color: #fff; font-weight: 700; }

/* ── Single big testimonial ───────────────────────────────────── */
.c-testimonial-inner {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 5rem;
  align-items: center;
}
.c-testimonial-portrait {
  border-radius: var(--radius-card-lg);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  box-shadow: var(--shadow-image);
  position: relative;
}
.c-testimonial-portrait img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(20%);
}
.c-testimonial-portrait .badge {
  position: absolute;
  bottom: 2rem; left: 2rem;
  background: #fff;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-pill);
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-brand-primary);
  box-shadow: var(--shadow-card);
}
.c-testimonial-portrait .badge svg { width: 14px; height: 14px; color: var(--color-brand-secondary); }
.c-testimonial-body .eyebrow-pill { margin-bottom: 2rem; }
.c-testimonial-body blockquote {
  margin: 0;
  font-size: clamp(1.5rem, 2.5vw, 2.25rem);
  line-height: 1.3;
  font-weight: 500;
  letter-spacing: -0.025em;
  color: var(--color-text-primary);
  text-wrap: pretty;
  margin-bottom: 2rem;
}
.c-testimonial-body blockquote .hl {
  background-image: linear-gradient(transparent 65%, rgba(0,166,81,0.2) 65%);
  padding: 0 0.2em;
}
.c-testimonial-body .stars { color: var(--color-accent-gold); margin-bottom: 1.5rem; }
.c-testimonial-body .stars svg { width: 22px; height: 22px; }
.c-testimonial-body .name { font-size: 1.125rem; font-weight: 800; letter-spacing: -0.01em; }
.c-testimonial-body .loc { font-size: 0.875rem; color: var(--color-text-secondary); margin-top: 0.25rem; }
.c-testimonial-body .results-row {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-border-default);
}
.c-testimonial-body .results-row .v {
  font-size: 1.75rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  background-image: var(--gradient-brand);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.c-testimonial-body .results-row .l {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 700;
  color: var(--color-text-secondary);
  margin-top: 0.25rem;
}

/* ── Review aggregation ───────────────────────────────────────── */
.review-snap {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  align-items: center;
}
.review-stat .big-num {
  font-size: 6rem;
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 0.9;
  background-image: var(--gradient-brand);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.review-stat .out-of {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  margin-left: 0.5rem;
  letter-spacing: -0.02em;
}
.review-stat .stars { margin: 1rem 0 0.5rem; color: var(--color-accent-gold); }
.review-stat .stars svg { width: 20px; height: 20px; fill: currentColor; }
.review-stat .total { font-size: 0.875rem; color: var(--color-text-secondary); font-weight: 600; }
.review-stat .breakdown { margin-top: 2rem; display: grid; gap: 0.65rem; }
.review-stat .bd-row {
  display: grid; grid-template-columns: 70px 1fr 40px;
  align-items: center; gap: 0.75rem;
  font-size: 0.8125rem;
}
.review-stat .bd-row .stars-mini { display: flex; gap: 1px; color: var(--color-accent-gold); }
.review-stat .bd-row .stars-mini svg { width: 11px; height: 11px; fill: currentColor; }
.review-stat .bd-row .track {
  height: 6px; background: var(--color-border-subtle);
  border-radius: var(--radius-pill);
  overflow: hidden;
}
.review-stat .bd-row .track .fill {
  height: 100%;
  background-image: var(--gradient-brand);
  border-radius: var(--radius-pill);
}
.review-stat .bd-row .pct {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  text-align: right;
}
.review-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.review-mini {
  background: #fff;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-card);
  padding: 1.75rem;
}
.review-mini .stars { color: var(--color-accent-gold); margin-bottom: 0.75rem; }
.review-mini .stars svg { width: 14px; height: 14px; fill: currentColor; }
.review-mini blockquote {
  margin: 0; font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-text-primary);
  font-weight: 500;
  letter-spacing: -0.005em;
}
.review-mini .meta {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border-subtle);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  display: flex; align-items: center; gap: 0.4rem;
}
.review-mini .meta strong { color: var(--color-text-primary); font-weight: 700; }
.review-mini .meta svg { width: 12px; height: 12px; color: var(--color-brand-secondary); }

/* ── Closing CTA ──────────────────────────────────────────────── */
/* Section markup also gets `.surface-grid-dark`. */
.b-closing {
  background-image: var(--gradient-brand);
  padding: 7rem 0;
  color: #fff;
}
.b-closing::before {
  background:
    radial-gradient(circle at 90% 10%, rgba(0,166,81,0.22), transparent 50%),
    linear-gradient(var(--color-white-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-white-grid) 1px, transparent 1px);
  background-size: auto, 64px 64px, 64px 64px;
}
.b-closing .container {
  position: relative;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 4rem;
  align-items: center;
}
.b-closing h2 {
  color: #fff;
  font-size: clamp(2rem, 4vw, 3.25rem);
  margin-bottom: 1.25rem;
  text-wrap: balance;
}
.b-closing p {
  color: var(--color-white-text-lead);
  font-size: 1.125rem;
  margin-bottom: 2rem;
  max-width: 56ch;
}
/* `.b-closing-card` uses the shared `.card-on-dark` chrome from site.css. */
.b-closing-card {
  padding: 2.5rem;
  border-radius: var(--radius-card-lg);
}
.b-closing-card .label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 700;
  color: rgba(255,255,255,0.65);
  margin-bottom: 0.75rem;
}
.b-closing-card .phone {
  font-size: 2.25rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: #fff;
  margin-bottom: 1.5rem;
}
.b-closing-card .form { display: flex; gap: 0.5rem; flex-direction: column; }
.b-closing-card .form .form-submit { margin-top: 0.5rem; justify-content: center; }

/* `.studies`, `.study`, and `.evidence-coda` live in site.css. */

/* ── Particle diagram heading ──────────────────────────────────── */
.science-diagram .diagram-heading              { margin-bottom: 2rem; }
.science-diagram .diagram-heading .eyebrow-pill{ margin-bottom: 1rem; }
.science-diagram .diagram-heading h3           { font-size: 1.5rem; }

/* ── Hero CTA stack on mobile ──────────────────────────────────── */
.hero-cta-stack {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .svc-story-inner, .science-grid, .review-snap, .remediation-card,
  .c-testimonial-inner, .b-closing .container {
    grid-template-columns: 1fr;
  }
  .timeline { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .timeline::before { display: none; }
  .timeline-step .node { width: 48px; height: 48px; font-size: 0.9375rem; }
  .svc-marquee-strip { grid-template-columns: 1fr 1fr; }
  .svc-marquee-strip > div:nth-child(2) { border-right: 0; }
  .review-cards { grid-template-columns: 1fr; }
  .svc-overview-grid { grid-template-columns: 1fr 1fr; }
  .svc-hero-trust { grid-template-columns: 1fr; }
  .svc-hero-trust > div {
    border-right: 0; padding: 0 0 1rem 0;
    border-bottom: 1px solid var(--color-white-border);
  }
  .svc-hero-trust > div:last-child { border-bottom: 0; padding-bottom: 0; }
}
@media (max-width: 640px) {
  .svc-overview-grid { grid-template-columns: 1fr; }
  .svc-marquee-strip { grid-template-columns: 1fr; }
  .svc-marquee-strip > div { border-right: 0; border-bottom: 1px solid var(--color-border-default); }
  .svc-marquee-strip > div:last-child { border-bottom: 0; }
  .timeline { grid-template-columns: 1fr; }
  .remediation-card { padding: 2.5rem 1.5rem; }
  .b-closing { padding: 4.5rem 0; }
  .b-closing-card { padding: 1.75rem; }
  .b-closing-card .phone { font-size: 1.75rem; }
  .svc-hero-inner { min-height: auto; padding-top: 5rem; padding-bottom: 4rem; }
  .svc-hero-stack h1 { letter-spacing: -0.03em; }
  .svc-story { padding: 4rem 0; }
  .svc-story-body { font-size: 1.5rem; }
  .svc-story-body .drop { font-size: 4.5rem; }
  .c-testimonial-inner { gap: 2.5rem; }
  .c-testimonial-body blockquote { font-size: 1.375rem; }
  .review-stat .big-num { font-size: 4.5rem; }
}