/* =========================================================================
   AI Jewelry Retoucher Landing Page — NeuroViz
   v3 / 2026-04-29 — adds page nav, hero bg image, card images, theme toggle
   Design tokens extracted from production neuroviz.ai homepage CSS.
   Brand guide: .claude/skills/design/neuroviz-brand-guide.md
   Dark theme overrides: ai-jewelry-retoucher-dark.css
   ========================================================================= */

/* -------- Brand tokens (do not change between themes) -------- */
:root {
  --orange:       #FF6600;
  --orange-dark:  #E55A00;
  --blue:         #31587C;
  --blue-light:   #1CA6AF;
  --teal:         #29ABB3;
  --orange-glow:  0 8px 24px rgba(255, 102, 0, 0.30);

  --heading-font: "Syne", Arial, sans-serif;
  --body-font:    "DM Sans", Arial, sans-serif;

  --container:    1280px;
  --section-pad-y: 100px;
  --radius-card:  20px;
  --radius-btn:   10px;

  /* -------- Theme-aware tokens (light defaults) -------- */
  --page-bg:        #FFFFFF;
  --page-bg-soft:   #EBF2F5;
  --surface-bg:     #FFFFFF;
  --surface-border: #E5EAEE;
  --text-primary:   #1F2937;
  --text-headline:  #1A2B3C;
  --text-section-heading: #31587C; /* light-mode H1/H2 — NeuroViz brand blue */
  --text-secondary: #6B7C8D;
  --card-shadow:        0 4px 24px rgba(49, 88, 124, 0.10);
  --card-shadow-hover:  0 12px 48px rgba(49, 88, 124, 0.18);
  --header-bg:      rgba(255, 255, 255, 0.85);
  --header-border:  rgba(49, 88, 124, 0.08);
  /* Page-nav uses INVERTED contrast vs page bg so the sticky strip
     reads as a deliberate element (not a faint divider). Light mode →
     dark navy nav. Dark mode override flips this in the dark stylesheet. */
  --pagenav-bg:     rgba(26, 43, 60, 0.96);
  --pagenav-border: rgba(255, 255, 255, 0.08);
  --pagenav-link:           rgba(255, 255, 255, 0.78);
  --pagenav-link-hover:     #FFFFFF;
  --pagenav-link-hover-bg:  rgba(255, 255, 255, 0.10);
  --pagenav-link-active-bg: rgba(255, 102, 0, 0.22);
  --pagenav-toggle-bg:      rgba(255, 255, 255, 0.10);
  --pagenav-toggle-border:  rgba(255, 255, 255, 0.22);
  --pagenav-toggle-color:   #FFFFFF;
  --tag-bg:         #EBF2F5;
  --inline-divider: #E5EAEE;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  background: var(--page-bg);
}

body {
  margin: 0;
  font-family: var(--body-font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-primary);
  background: var(--page-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.25s ease, color 0.25s ease;
}

img, video { max-width: 100%; height: auto; display: block; }

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--orange); }

h1, h2, h3, h4 {
  font-family: var(--heading-font);
  color: var(--text-headline);
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
}

/* H1 + H2 on light/white sections render in NeuroViz brand blue (Issue 4
   refinement). H3 / H4 keep the dark-navy text-headline color so smaller
   headings (e.g. step cards, FAQ questions) stay readable and grounded. */
h1, h2 { color: var(--text-section-heading); }

h1 { font-size: clamp(2rem, 4.5vw, 3.5rem); font-weight: 800; line-height: 1.1; }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 800; line-height: 1.18; }
h3 { font-size: 1.25rem; font-weight: 700; line-height: 1.3; }
h4 { font-size: 1rem; font-weight: 700; }

p { margin: 0 0 1em; max-width: 65ch; }

ul { padding-left: 1.25em; margin: 0 0 1em; }
li { margin-bottom: 0.5em; }

/* -------- Container -------- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}
@media (min-width: 768px) {
  .container { padding: 0 60px; }
}

/* -------- Header (main site) -------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 72px;
  background: var(--header-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--header-border);
  z-index: 100;
  display: flex;
  align-items: center;
  transition: box-shadow 0.3s, background-color 0.25s;
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04); }
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0 20px;
}
@media (min-width: 768px) { .site-header .container { padding: 0 40px; } }
/* Logo must never shrink in the flex header — otherwise the global
   `img { max-width: 100% }` rule clamps the width while `height: 36px`
   stays fixed, distorting/squeezing the logo on mobile. */
.site-logo { flex-shrink: 0; }
.site-logo img { height: 36px; width: auto; max-width: none; }
.site-logo .logo-dark { display: none; }

.site-nav { display: none; gap: 32px; }
.site-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: color 0.2s;
}
.site-nav a:hover { color: var(--blue); }
@media (min-width: 1024px) { .site-nav { display: flex; } }

.header-ctas { display: flex; gap: 12px; align-items: center; }

/* -------- Page nav (sticky landing-page nav) -------- */
.page-nav {
  position: sticky;
  top: 72px;
  background: var(--pagenav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--pagenav-border);
  z-index: 90;
  transition: background-color 0.25s, border-color 0.25s;
}
.page-nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 56px;
}
@media (min-width: 768px) { .page-nav-inner { padding: 0 60px; } }

.page-nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
  padding: 0;
  margin: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  flex: 1;
}
.page-nav-links::-webkit-scrollbar { display: none; }
.page-nav-links li { margin: 0; flex-shrink: 0; }
.page-nav-links a {
  display: inline-block;
  padding: 8px 14px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--pagenav-link);
  border-radius: 999px;
  transition: color 0.2s, background-color 0.2s;
  white-space: nowrap;
}
.page-nav-links a:hover {
  color: var(--pagenav-link-hover);
  background: var(--pagenav-link-hover-bg);
}
.page-nav-links a.active {
  color: var(--orange);
  background: var(--pagenav-link-active-bg);
}

/* -------- Theme toggle button --------
   Lives inside .page-nav which uses inverted contrast vs page bg. The
   toggle picks up matching tokens so it stays visible on either nav bg. */
.theme-toggle {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--pagenav-toggle-border);
  background: var(--pagenav-toggle-bg);
  color: var(--pagenav-toggle-color);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: background-color 0.2s, border-color 0.2s, transform 0.2s;
}
.theme-toggle:hover {
  border-color: var(--orange);
  transform: scale(1.05);
}
.theme-toggle .icon-moon { display: inline-block; }
.theme-toggle .icon-sun  { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun  { display: inline-block; }

/* -------- Buttons -------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--body-font);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-btn);
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  padding: 12px 24px;
  line-height: 1;
  white-space: nowrap;
}
.btn-primary { background: var(--orange); color: #FFFFFF; }
.btn-primary:hover {
  background: var(--orange-dark);
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: var(--orange-glow);
}
.btn-outline {
  background: transparent;
  color: var(--blue);
  border: 1.5px solid var(--surface-border);
}
.btn-outline:hover {
  border-color: var(--blue);
  background: var(--page-bg-soft);
  color: var(--blue);
}
.btn-lg { padding: 16px 32px; font-size: 1rem; }
.btn-sm { padding: 10px 18px; font-size: 0.85rem; }

/* -------- Generic section -------- */
section { padding: var(--section-pad-y) 0; }
@media (max-width: 767px) { section { padding: 64px 0; } }

.section-tag {
  display: inline-block;
  font-family: var(--body-font);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 16px;
  padding: 6px 14px;
  background: var(--tag-bg);
  border-radius: 999px;
}
.section-intro {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin-bottom: 56px;
}
.bg-soft  { background: var(--page-bg-soft); }
.bg-white { background: var(--page-bg); }
.bg-dark {
  background: linear-gradient(135deg, #1A2B3C 0%, #1E3A54 100%);
  color: #FFFFFF;
}
.bg-dark h1, .bg-dark h2, .bg-dark h3, .bg-dark h4 { color: #FFFFFF; }
.bg-dark p { color: rgba(255, 255, 255, 0.78); }

/* -------- Hero (replicates neuroviz.ai homepage hero) --------
   Split layout: text left, interactive before/after slider right.
   Two floating badges flank the slider with floatUp animation.
   Stats strip below. Light + dark themes via CSS variables.
   ============================================================= */
.hero {
  margin-top: 72px; /* clear fixed site-header */
  background: var(--page-bg);
  padding: 100px 0;
}
@media (max-width: 767px) { .hero { padding: 56px 0 64px; } }

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}
@media (min-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr 1fr; gap: 60px; }
}

/* Text column (mobile order: text BELOW image). */
.hero-text { order: 2; max-width: 560px; }
.hero-visual { order: 1; }
@media (min-width: 1024px) {
  .hero-text { order: 1; }
  .hero-visual { order: 2; }
}

/* Eyebrow badge with pulsing dot — same pattern as homepage. */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, rgba(28,166,175,0.12), rgba(49,88,124,0.08));
  border: 1px solid rgba(28,166,175,0.25);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--blue-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 22px;
}
[data-theme="dark"] .hero-badge {
  background: linear-gradient(135deg, rgba(28,166,175,0.18), rgba(49,88,124,0.14));
  color: #5BD0D8;
}
.hero-badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue-light);
  animation: badgePulse 2s infinite;
}
@keyframes badgePulse {
  0%, 100% { transform: scale(1);   opacity: 1;   box-shadow: 0 0 0 0 rgba(28,166,175,0.6); }
  50%      { transform: scale(1.15); opacity: 0.85; box-shadow: 0 0 0 6px rgba(28,166,175,0); }
}

/* H1 — split into two parts:
   Part 1 keeps the homepage hero size (clamp 2.4–3.4rem) at extrabold;
   Part 2 is a refined subtitle — lighter weight + ~62% size. */
.hero-text h1 {
  font-size: clamp(2.4rem, 4vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
  color: var(--text-headline); /* override the global section-blue rule */
}
.hero-title-main {
  display: block;
  font-family: var(--heading-font);
  font-weight: 800;
  color: var(--text-headline);
}
.hero-title-sub {
  display: block;
  font-family: var(--heading-font);
  font-weight: 400;
  color: var(--blue);
  font-size: 0.62em;
  margin-top: 0.32em;
  letter-spacing: -0.005em;
  line-height: 1.18;
}
[data-theme="dark"] .hero-title-main { color: #FFFFFF; }
[data-theme="dark"] .hero-title-sub  { color: #5BAACA; }

.hero-sub {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 0 32px;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 36px;
}
/* Hero CTA arrow icon margin */
.hero-cta-row .btn svg { margin-left: 2px; }

/* Trust checklist with green tick pills */
.hero-trust {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 18px 24px;
}
.hero-trust li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.hero-trust-tick {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--blue-light);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.hero-trust-tick svg { width: 11px; height: 11px; }

/* ---------- Before/After slider (homepage hero pattern) ---------- */
.hero-visual { position: relative; width: 100%; }

.ba-slider {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 24px;
  overflow: hidden;
  background: #F0F4F7;
  box-shadow: 0 24px 80px rgba(49, 88, 124, 0.22);
  cursor: col-resize;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}
.ba-slider-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  display: block;
}
.ba-slider-after {
  /* Initial clip — JS updates this via --slider-pos. */
  clip-path: inset(0 0 0 var(--slider-pos, 50%));
}
.ba-slider-divider {
  position: absolute;
  top: 0; bottom: 0;
  width: 3px;
  background: #FFFFFF;
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.20);
  z-index: 5;
  left: var(--slider-pos, 50%);
  transform: translateX(-50%);
  pointer-events: none;
}
.ba-slider-handle {
  position: absolute;
  top: 50%;
  width: 44px;
  height: 44px;
  border: none;
  background: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.20);
  z-index: 6;
  cursor: col-resize;
  left: var(--slider-pos, 50%);
  transform: translate(-50%, -50%);
  padding: 0;
}
.ba-slider-handle:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 3px;
}
.ba-slider-label {
  position: absolute;
  font-family: var(--body-font);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: #FFFFFF;
  padding: 6px 12px;
  border-radius: 999px;
  z-index: 7;
  pointer-events: none;
}
.ba-slider-label-before { bottom: 16px; left: 16px; background: rgba(0, 0, 0, 0.55); }
.ba-slider-label-after  { top: 16px;    right: 16px; background: var(--orange); }

/* Floating stat badges around the slider (homepage pattern). */
.hero-float {
  position: absolute;
  z-index: 20;
  background: var(--surface-bg);
  border: 1px solid var(--surface-border);
  border-radius: 16px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 12px 48px rgba(49, 88, 124, 0.18);
  animation: floatUp 3s ease-in-out infinite;
}
[data-theme="dark"] .hero-float { background: #16263A; border-color: #243950; box-shadow: 0 12px 48px rgba(0,0,0,0.45); }
.hero-float-tl { top: -20px;    left: -20px; }
.hero-float-br { bottom: -20px; right: -20px; animation-delay: 1.5s; }
.hero-float-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.hero-float-icon-blue {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-light) 100%);
}
.hero-float-icon svg { width: 18px; height: 18px; }
.hero-float-value {
  font-family: var(--heading-font);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--text-headline);
  line-height: 1;
}
[data-theme="dark"] .hero-float-value { color: #FFFFFF; }
.hero-float-label {
  font-size: 0.72rem;
  color: var(--text-secondary);
  margin-top: 2px;
}
@keyframes floatUp {
  0%, 100% { transform: translateY(0);    }
  50%      { transform: translateY(-6px); }
}
@media (max-width: 640px) {
  .hero-float-tl { top: -12px;    left: 8px;  padding: 8px 12px; }
  .hero-float-br { bottom: -12px; right: 8px; padding: 8px 12px; }
  .hero-float-value { font-size: 0.95rem; }
  .hero-float-label { font-size: 0.65rem; }
}

/* ---------- Stats strip below hero ---------- */
.hero-stats {
  background: var(--page-bg-soft);
  border-top: 1px solid var(--surface-border);
  border-bottom: 1px solid var(--surface-border);
  padding: 22px 0;
}
.hero-stats-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}
@media (min-width: 768px) { .hero-stats-inner { gap: 48px; padding: 0 60px; } }
.hero-stat { text-align: center; display: flex; flex-direction: column; gap: 2px; }
.hero-stat-value {
  font-family: var(--heading-font);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--blue);
}
[data-theme="dark"] .hero-stat-value { color: #5BAACA; }
.hero-stat-label { font-size: 0.85rem; color: var(--text-secondary); }

@media (prefers-reduced-motion: reduce) {
  .hero-badge-dot, .hero-float { animation: none; }
}

/* -------- 3-step "How It Works" -------- */
.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 32px;
}
@media (min-width: 768px) { .steps-grid { grid-template-columns: repeat(3, 1fr); } }
.step-card {
  background: var(--surface-bg);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-card);
  padding: 32px;
  position: relative;
  transition: all 0.3s ease;
}
.step-card:hover {
  border-color: rgba(28, 166, 175, 0.3);
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-3px);
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--blue-light) 0%, var(--blue) 100%);
  color: #FFFFFF;
  font-family: var(--heading-font);
  font-weight: 800;
  font-size: 1.4rem;
  margin-bottom: 20px;
}
.step-card h3 { margin-bottom: 12px; }
.step-card p { font-size: 0.95rem; color: var(--text-secondary); margin: 0; }

/* -------- Retoucher cards (3 products) -------- */
.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 40px;
}
@media (min-width: 768px) { .products-grid { grid-template-columns: repeat(3, 1fr); } }
.product-card {
  background: var(--surface-bg);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-card);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: all 0.3s ease;
}
.product-card:hover {
  border-color: rgba(28, 166, 175, 0.4);
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-3px);
}
.product-image {
  position: relative;
  width: 100%;
  height: 220px;
  overflow: hidden;
  background: var(--page-bg-soft);
}
.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover .product-image img { transform: scale(1.04); }

.product-content {
  padding: 28px 28px 28px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.product-card .badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #FFFFFF;
  background: var(--orange);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.product-card .badge.blue { background: var(--blue); }
.product-card .badge.teal { background: var(--teal); }
.product-card h3 { font-size: 1.5rem; margin-bottom: 8px; }
.product-tagline {
  font-size: 1rem;
  color: var(--blue);
  font-weight: 600;
  margin-bottom: 16px;
}
.product-desc {
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.product-best-for {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--inline-divider);
}
.product-best-for strong { color: var(--text-headline); }
.product-pro-tip {
  font-size: 0.88rem;
  color: var(--text-primary);
  margin-bottom: 16px;
  padding: 14px 16px;
  background: rgba(255, 102, 0, 0.06);
  border-left: 3px solid var(--orange);
  border-radius: 6px;
}
.product-pro-tip strong { color: var(--orange); display: block; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.12em; margin-bottom: 4px; }
.product-credits {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 18px;
  margin-top: auto;
}
.product-credits strong { color: var(--text-headline); font-size: 1.05rem; }
.product-card .btn {
  align-self: flex-start;
  width: 100%;
  justify-content: center;
}

/* -------- Fix list (icon list) -------- */
.fix-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px 32px;
  margin-top: 32px;
}
@media (min-width: 640px) { .fix-list { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .fix-list { grid-template-columns: 1fr 1fr 1fr; } }
.fix-list li {
  font-size: 0.95rem;
  color: var(--text-primary);
  padding-left: 28px;
  position: relative;
  margin: 0;
}
.fix-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 4px;
  background: var(--orange);
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='black' d='M9 16.17 4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/></svg>") no-repeat center / contain;
          mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='black' d='M9 16.17 4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/></svg>") no-repeat center / contain;
}
.fix-list li strong { color: var(--text-headline); }

/* -------- Gallery -------- */
.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 40px;
}
@media (min-width: 640px) { .gallery-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .gallery-grid { grid-template-columns: 1fr 1fr 1fr; } }
.gallery-card {
  background: var(--surface-bg);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all 0.3s ease;
}
.gallery-card:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-3px);
}
.gallery-card .ba-frame {
  border-radius: 0;
  box-shadow: none;
  aspect-ratio: 4/3;
}
.gallery-caption {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.gallery-caption h4 { font-size: 0.95rem; margin: 0; color: var(--text-headline); }
.gallery-caption .tag {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--page-bg-soft);
  padding: 4px 10px;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* -------- Before/After frame (used in gallery) -------- */
.ba-frame {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--page-bg-soft);
  box-shadow: var(--card-shadow);
  aspect-ratio: 4/3;
}
.ba-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  height: 100%;
  position: relative;
}
.ba-split > div { position: relative; overflow: hidden; }
.ba-split img { width: 100%; height: 100%; object-fit: cover; }
.ba-split .before img { filter: grayscale(0.6) contrast(0.9) brightness(0.92); }
.ba-divider {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 100%;
  background: var(--orange);
  z-index: 2;
}
.ba-label {
  position: absolute;
  top: 16px;
  font-family: var(--body-font);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #FFFFFF;
  background: rgba(26, 43, 60, 0.85);
  padding: 5px 12px;
  border-radius: 4px;
  z-index: 3;
}
.ba-label.before { left: 16px; }
.ba-label.after  { right: 16px; background: var(--orange); }

/* Composite gallery frame: a single pre-composed before/after image fills
   the frame. Hides the .ba-split / .ba-divider helpers since the visual
   split is baked into the source image. The Before/After pill labels stay
   as overlays so the slot still reads correctly to a scanning user. */
.ba-frame-composite > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.ba-frame-composite .ba-divider,
.ba-frame-composite .ba-split { display: none; }

/* -------- Comparison table (Why NeuroViz) -------- */
.compare-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 40px -20px 0;
  padding: 0 20px;
}
@media (min-width: 768px) { .compare-wrap { margin: 40px 0 0; padding: 0; } }
.compare-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 0.95rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.compare-table th, .compare-table td {
  padding: 18px 20px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.compare-table th {
  background: rgba(255, 255, 255, 0.06);
  font-family: var(--heading-font);
  font-weight: 700;
  font-size: 0.95rem;
  color: #FFFFFF;
}
.compare-table td.feature {
  font-weight: 600;
  color: #FFFFFF;
  width: 32%;
}
.compare-table td.nv {
  color: #FFFFFF;
  background: rgba(255, 102, 0, 0.08);
  border-left: 2px solid var(--orange);
}
.compare-table td { color: rgba(255, 255, 255, 0.78); }
.compare-table .yes { color: var(--orange); font-weight: 700; }
.compare-table .no { color: rgba(255, 255, 255, 0.4); }
.compare-table tr:last-child th, .compare-table tr:last-child td { border-bottom: none; }
@media (max-width: 767px) {
  .compare-table { font-size: 0.82rem; }
  .compare-table th, .compare-table td { padding: 12px 10px; }
}

/* -------- Pricing -------- */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 40px;
}
@media (min-width: 900px) { .pricing-grid { grid-template-columns: 1fr 1fr; gap: 48px; } }
.price-card {
  background: var(--surface-bg);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-card);
  padding: 32px;
  box-shadow: var(--card-shadow);
}
.price-card h3 { font-size: 1.15rem; margin-bottom: 18px; color: var(--text-headline); }
.price-card table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.price-card th, .price-card td {
  padding: 12px 8px;
  text-align: left;
  border-bottom: 1px solid var(--inline-divider);
}
.price-card th { color: var(--text-secondary); font-weight: 600; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.08em; }
.price-card td { color: var(--text-headline); }
.price-card td:nth-child(1) { font-weight: 600; }
.price-card tr:last-child td { border-bottom: none; }
.price-card .price { color: var(--orange); font-weight: 700; }

/* -------- FAQ -------- */
.faq-list {
  margin-top: 32px;
  border-top: 1px solid var(--inline-divider);
}
.faq-item {
  border-bottom: 1px solid var(--inline-divider);
  padding: 8px 0;
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 36px 18px 0;
  font-family: var(--heading-font);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-headline);
  position: relative;
  outline: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.6rem;
  font-weight: 300;
  color: var(--orange);
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 4px;
  border-radius: 4px;
}
.faq-answer {
  padding: 0 0 20px 0;
  font-size: 0.98rem;
  color: var(--text-primary);
  line-height: 1.7;
  max-width: 70ch;
}

/* -------- Cross-links -------- */
.cross-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 32px;
}
@media (min-width: 640px) { .cross-grid { grid-template-columns: 1fr 1fr; } }
.cross-card {
  background: var(--surface-bg);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-card);
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: all 0.3s ease;
}
.cross-card:hover {
  border-color: rgba(28, 166, 175, 0.4);
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-3px);
}
.cross-card h4 { font-size: 1.05rem; margin-bottom: 4px; color: var(--text-headline); }
.cross-card p { font-size: 0.9rem; color: var(--text-secondary); margin: 0; }
.cross-card .arrow { font-size: 0.85rem; color: var(--orange); font-weight: 600; margin-top: 8px; }

/* -------- Final CTA -------- */
.final-cta {
  text-align: center;
  background: linear-gradient(135deg, #1A2B3C 0%, #1E3A54 100%);
  color: #FFFFFF;
}
.final-cta h2 { color: #FFFFFF; }
.final-cta p { color: rgba(255, 255, 255, 0.78); max-width: 560px; margin: 0 auto 28px; }
.final-cta .btn-row { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.final-cta .sub { font-size: 0.85rem; color: rgba(255, 255, 255, 0.5); margin-top: 16px; }

/* -------- Footer -------- */
.site-footer {
  background: #1A2B3C;
  color: rgba(255, 255, 255, 0.7);
  padding: 56px 0 32px;
  font-size: 0.9rem;
}
.site-footer a { color: rgba(255, 255, 255, 0.7); }
.site-footer a:hover { color: var(--orange); }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
@media (min-width: 768px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.footer-grid h4 {
  color: #FFFFFF;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 16px;
}
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 8px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.5);
}

/* -------- Sticky bottom CTA (mobile) -------- */
.sticky-cta {
  position: fixed;
  bottom: 16px;
  left: 16px;
  right: 16px;
  background: var(--orange);
  color: #FFFFFF;
  text-align: center;
  padding: 14px 20px;
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 8px 32px rgba(255, 102, 0, 0.4);
  z-index: 95;
  text-decoration: none;
  display: none;
}
.sticky-cta:hover { background: var(--orange-dark); color: #FFFFFF; }
@media (max-width: 767px) {
  .sticky-cta { display: block; }
  body { padding-bottom: 72px; }
}

/* -------- Scroll-fade animation -------- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .fade-in { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
  .scroll-indicator { animation: none; }
}

/* -------- Accessibility -------- */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}
:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}