/* ==========================================================================
   SECTIONS — per-module visual layout, in document order
   Mobile-first: single column by default, expands at md (768px) / lg (1024px)
   ========================================================================== */

/* ---------------------------------------------------------------------
   Inverse (tech-insert) section shell — module 4 only
   --------------------------------------------------------------------- */

.section--inverse {
  background: var(--color-bg-inverse);
  color: var(--color-text-inverse);
}

.section--inverse h2,
.section--inverse h3 {
  color: var(--color-text-inverse);
}

.section--inverse p {
  color: var(--color-text-inverse-muted);
}

/* ---------------------------------------------------------------------
   Module 1 — Hero
   --------------------------------------------------------------------- */

.hero {
  padding-top: clamp(var(--space-7), 6vw, var(--space-9));
  background: linear-gradient(180deg, var(--color-bg-surface-alt) 0%, var(--color-bg-page) 60%);
}

.hero__grid {
  display: grid;
  gap: var(--space-8);
  align-items: center;
}

@media (min-width: 1024px) {
  .hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
  }
}

.hero__copy {
  max-width: 56ch;
}

.hero h1 {
  margin-bottom: var(--space-3);
}

.hero__subheadline {
  font-size: var(--text-md);
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}

.bonus-callout-inline {
  display: inline-block;
  padding: var(--space-3) var(--space-5);
  margin-bottom: var(--space-5);
  background: var(--color-brand-secondary);
  border-radius: var(--radius-md);
  font-weight: 700;
}

.bonus-callout-inline p {
  margin: 0;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.hero__media .placeholder-img {
  aspect-ratio: 4 / 5;
  object-fit: cover;
  box-shadow: var(--shadow-lg);
}

/* ---------------------------------------------------------------------
   Module 2 — Symptoms
   --------------------------------------------------------------------- */

.symptoms {
  background: var(--color-bg-page);
}

/* ---------------------------------------------------------------------
   Module 3 / 9 — Editorial block (spa positioning, consultation matters)
   --------------------------------------------------------------------- */

.editorial-block {
  background: var(--color-bg-surface-alt);
}

.editorial-block__grid {
  display: grid;
  gap: var(--space-7);
  align-items: center;
}

@media (min-width: 1024px) {
  .editorial-block__grid {
    grid-template-columns: 0.85fr 1.15fr;
  }

  .editorial-block--reverse .editorial-block__grid {
    grid-template-columns: 1.15fr 0.85fr;
  }

  .editorial-block--reverse .editorial-block__media {
    order: 2;
  }
}

.editorial-block__media .placeholder-img {
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.editorial-block__copy h2 {
  margin-bottom: var(--space-4);
}

/* ---------------------------------------------------------------------
   Module 4 — Wavelengths (tech insert)
   --------------------------------------------------------------------- */

.wavelengths {
  position: relative;
  overflow: hidden;
}

.wavelengths::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 80% at 80% 0%, rgb(159 184 196 / 0.12), transparent 70%);
  pointer-events: none;
}

/* signature "wavelength sweep" reveal — module 4 only */
.wavelength-card {
  overflow: hidden;
}

.wavelength-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, transparent 0%, rgb(199 220 227 / 0.18) 45%, transparent 60%);
  transform: translateX(-120%);
  pointer-events: none;
}

.wavelength-card.is-visible::after {
  animation: wavelength-sweep var(--duration-slow) var(--ease-out-soft) forwards;
  animation-delay: calc(var(--reveal-index, 0) * var(--reveal-stagger-step) + var(--duration-fast));
}

@keyframes wavelength-sweep {
  to {
    transform: translateX(120%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .wavelength-card::after {
    display: none;
  }
}

/* ---------------------------------------------------------------------
   Module 5 — Before / after
   --------------------------------------------------------------------- */

.before-after {
  background: var(--color-bg-page);
}

.disclaimer {
  margin-top: var(--space-5);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  max-width: 65ch;
}

/* ---------------------------------------------------------------------
   Module 6 — What it can help improve
   --------------------------------------------------------------------- */

.improve {
  background: var(--color-bg-surface-alt);
}

.improve__grid {
  display: grid;
  gap: var(--space-7);
  align-items: center;
}

@media (min-width: 1024px) {
  .improve__grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.improve__media .placeholder-img {
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

/* ---------------------------------------------------------------------
   Module 7 — Areas treated
   --------------------------------------------------------------------- */

.areas {
  background: var(--color-bg-page);
}

/* ---------------------------------------------------------------------
   Module 8 — $500 bonus (premium, not coupon-style)
   --------------------------------------------------------------------- */

.bonus-callout {
  background: linear-gradient(135deg, var(--color-brand-secondary) 0%, var(--color-bg-surface-alt) 100%);
}

.bonus-callout__inner {
  max-width: 720px;
  text-align: center;
  display: grid;
  justify-items: center;
  gap: var(--space-4);
}

.bonus-callout h2 {
  font-size: var(--text-xl);
}

/* ---------------------------------------------------------------------
   Module 10 — FAQ
   --------------------------------------------------------------------- */

.faq {
  background: var(--color-bg-surface-alt);
}

.faq h2 {
  margin-bottom: var(--space-6);
}

/* ---------------------------------------------------------------------
   Module 11 — Form section
   --------------------------------------------------------------------- */

.consult-form-section {
  background: var(--color-bg-page);
}

.consult-form-section__grid {
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 1024px) {
  .consult-form-section__grid {
    grid-template-columns: 0.85fr 1.15fr;
    align-items: start;
  }
}

.consult-form-section__copy {
  max-width: 50ch;
}

/* ---------------------------------------------------------------------
   Module 12 — Final CTA
   --------------------------------------------------------------------- */

.final-cta {
  background: var(--color-bg-inverse);
  color: var(--color-text-inverse);
}

.final-cta h2 {
  color: var(--color-text-inverse);
}

.final-cta p {
  color: var(--color-text-inverse-muted);
}

.final-cta__inner {
  max-width: 760px;
  text-align: center;
  display: grid;
  justify-items: center;
  gap: var(--space-4);
}

.final-cta__ctas {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
  margin-block: var(--space-3);
}

.contact-block {
  margin-top: var(--space-6);
  font-style: normal;
  color: var(--color-text-inverse-muted);
  line-height: var(--leading-relaxed);
}

.contact-block a {
  color: var(--color-tech-accent-bright);
  font-weight: 700;
}

/* ---------------------------------------------------------------------
   Footer
   --------------------------------------------------------------------- */

.site-footer {
  padding-block: var(--space-6);
  padding-bottom: calc(var(--space-6) + 72px); /* clear the mobile sticky bar */
  background: var(--color-bg-inverse);
  color: var(--color-text-inverse-muted);
  text-align: center;
  font-size: var(--text-xs);
}

@media (min-width: 1024px) {
  .site-footer {
    padding-bottom: var(--space-6);
  }
}