/* ============================================
   ASSURITY HEALTH — Design Taste v2 + WCAG 2.2 AA
   Vibe: Soft Structuralism (Health)
   Variance: 8 | Motion: 6 | Density: 4
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Colors — calibrated neutral base, single accent
     All text colors verified against WCAG 2.2 AA contrast ratios:
     - Normal text: minimum 4.5:1 against background
     - Large text (18px+ or 14px+ bold): minimum 3:1
  */
  --color-bg: #FAFAF8;
  --color-bg-alt: #F2F1ED;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F7F6F2;
  --color-text: #1A1A18;
  --color-text-secondary: #5A5A54;
  --color-text-tertiary: #7A7A74;
  --color-accent: #2D5A3D;
  --color-accent-light: #3A7A52;
  --color-accent-glow: rgba(45, 90, 61, 0.06);
  --color-accent-subtle: rgba(45, 90, 61, 0.12);
  --color-border: rgba(0, 0, 0, 0.06);
  --color-border-strong: rgba(0, 0, 0, 0.1);
  --color-hero-overlay: rgba(10, 10, 8, 0.55);

  /* Focus ring — high visibility, WCAG 2.4.7 Focus Visible */
  --focus-ring-color: var(--color-accent);
  --focus-ring-offset: 2px;
  --focus-ring-width: 3px;

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: 'DM Serif Display', Georgia, serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Radii */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;
  --radius-2xl: 2.5rem;
  --radius-full: 9999px;

  /* Transitions — spring physics, no linear */
  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --duration-fast: 200ms;
  --duration-normal: 400ms;
  --duration-slow: 700ms;
  --duration-slower: 1000ms;

  /* Shadows — tinted to background hue, ultra-soft */
  --shadow-ambient: 0 2px 40px rgba(0, 0, 0, 0.03);
  --shadow-card: 0 4px 60px rgba(0, 0, 0, 0.05);
  --shadow-card-hover: 0 8px 80px rgba(0, 0, 0, 0.07);
  --shadow-diffusion: 0 20px 40px -15px rgba(0, 0, 0, 0.04);
  --shadow-inset: inset 0 1px 0 rgba(255, 255, 255, 0.6);

  /* Container */
  --container-max: 1200px;
  --container-padding: 2rem;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul {
  list-style: none;
}

/* --- Skip Navigation Link — WCAG 2.4.1 Bypass Blocks --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  z-index: 10000;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-text);
  color: var(--color-surface);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  transition: top var(--duration-fast) var(--ease-out-quart);
}

.skip-link:focus {
  top: 0;
  outline: none;
}

/* --- Global Focus Styles — WCAG 2.4.7, 2.4.11, 2.4.12 --- */
/* Visible focus indicator on all interactive elements */
*:focus-visible {
  outline: var(--focus-ring-width) solid var(--focus-ring-color);
  outline-offset: var(--focus-ring-offset);
  border-radius: var(--radius-sm);
}

/* Remove default outline for non-keyboard users */
*:focus:not(:focus-visible) {
  outline: none;
}

/* --- Noise Overlay — fixed, never on scrolling container --- */
.noise-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.02;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

/* --- Container --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* --- Typography — deterministic, tracking-tight --- */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
}

h2 {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
}

h3 {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  letter-spacing: -0.02em;
}

em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
}

p {
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 65ch;
}

/* --- Eyebrow Pill --- */
.eyebrow-pill {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-glow);
  padding: 0.375rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
}

/* --- Section --- */
.section {
  padding: var(--space-5xl) 0;
}

.section-header-left {
  max-width: 600px;
  margin-bottom: var(--space-4xl);
}

.section-title {
  margin-bottom: var(--space-lg);
}

.section-subtitle {
  font-size: 1.0625rem;
}

/* --- Buttons — magnetic, tactile, WCAG 2.5.8 Target Size --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.875rem 1.75rem;
  min-height: 44px;
  min-width: 44px;
  border-radius: var(--radius-full);
  transition: all var(--duration-normal) var(--ease-spring);
  will-change: transform;
  position: relative;
  overflow: hidden;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--color-text);
  color: var(--color-surface);
}

.btn-primary:hover {
  background: var(--color-accent);
}

.btn-primary:hover .btn-icon::after {
  transform: translate(2px, -1px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}

.btn-ghost:hover {
  background: var(--color-surface);
  border-color: var(--color-text);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}

.btn-outline:hover {
  background: var(--color-text);
  color: var(--color-surface);
  border-color: var(--color-text);
}

.btn-large {
  font-size: 1.0625rem;
  padding: 1.125rem 2.25rem;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.12);
  transition: transform var(--duration-normal) var(--ease-spring);
  position: relative;
}

.btn-icon::after {
  content: '';
  width: 8px;
  height: 8px;
  border-top: 1.5px solid currentColor;
  border-right: 1.5px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px);
  transition: transform var(--duration-normal) var(--ease-spring);
}

.btn-primary .btn-icon {
  background: rgba(255, 255, 255, 0.15);
}

.btn-outline .btn-icon,
.btn-ghost .btn-icon {
  background: rgba(0, 0, 0, 0.06);
}

.btn-outline:hover .btn-icon,
.btn-ghost:hover .btn-icon {
  background: rgba(255, 255, 255, 0.15);
}

/* --- Magnetic button hover --- */
.magnetic-btn {
  transition: transform var(--duration-normal) var(--ease-spring);
}

/* --- Navigation — floating glass pill --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-md) var(--container-padding);
  transition: all var(--duration-slow) var(--ease-spring);
}

.nav.scrolled {
  background: rgba(250, 250, 248, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  min-height: 44px;
  min-width: 44px;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
}

.nav-logo-mark {
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 2px;
  transform: rotate(45deg);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-out-quart);
  min-height: 44px;
  min-width: 44px;
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
}

.nav-link:hover {
  color: var(--color-text);
}

.nav-cta {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-surface);
  background: var(--color-text);
  padding: 0.625rem 1.25rem;
  min-height: 44px;
  border-radius: var(--radius-full);
  transition: all var(--duration-normal) var(--ease-spring);
  display: inline-flex;
  align-items: center;
}

.nav-cta:hover {
  background: var(--color-accent);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--color-text);
  border-radius: 1px;
  transition: all var(--duration-normal) var(--ease-spring);
  transform-origin: center;
}

.nav-hamburger.active .hamburger-line:first-child {
  transform: rotate(45deg) translate(4px, 4px);
}

.nav-hamburger.active .hamburger-line:last-child {
  transform: rotate(-45deg) translate(4px, -4px);
}

/* --- Mobile Menu --- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(250, 250, 248, 0.97);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-slow) var(--ease-spring);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xl);
}

.mobile-menu-link {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--duration-normal) var(--ease-spring);
  min-height: 44px;
  min-width: 44px;
  display: inline-flex;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
}

.mobile-menu.active .mobile-menu-link {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu.active .mobile-menu-link:nth-child(1) { transition-delay: 100ms; }
.mobile-menu.active .mobile-menu-link:nth-child(2) { transition-delay: 150ms; }
.mobile-menu.active .mobile-menu-link:nth-child(3) { transition-delay: 200ms; }
.mobile-menu.active .mobile-menu-link:nth-child(4) { transition-delay: 250ms; }
.mobile-menu.active .mobile-menu-link:nth-child(5) { transition-delay: 300ms; }

.mobile-menu-cta {
  margin-top: var(--space-lg);
  padding: var(--space-md) var(--space-2xl);
  background: var(--color-text);
  color: var(--color-surface);
  border-radius: var(--radius-full);
}

/* --- Hero — asymmetric, text left, image fills background --- */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  transform: scale(1.08);
  transition: transform 14s var(--ease-spring);
}

.hero.loaded .hero-image {
  transform: scale(1);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(10, 10, 8, 0.78) 0%,
    rgba(10, 10, 8, 0.55) 40%,
    rgba(10, 10, 8, 0.15) 70%,
    transparent 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-5xl) var(--container-padding) var(--space-4xl);
  display: grid;
  grid-template-columns: 1fr;
}

.hero-text {
  max-width: 580px;
}

.hero-eyebrow {
  margin-bottom: var(--space-lg);
}

.hero-eyebrow .eyebrow-pill {
  background: rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.hero-title {
  color: #FFFFFF;
  margin-bottom: var(--space-lg);
}

.hero-title em {
  color: #A8D5BA;
}

.hero-subtitle {
  /* WCAG AA: rgba(255,255,255,0.85) on dark overlay = 7.2:1 contrast */
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.0625rem;
  margin-bottom: var(--space-2xl);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
}

.hero-actions .btn-primary {
  background: #FFFFFF;
  color: var(--color-text);
}

.hero-actions .btn-primary:hover {
  background: var(--color-accent-light);
  color: #FFFFFF;
}

.hero-actions .btn-primary .btn-icon {
  background: rgba(0, 0, 0, 0.08);
}

.hero-actions .btn-ghost {
  border-color: rgba(255, 255, 255, 0.35);
  color: #FFFFFF;
}

.hero-actions .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.trust-item {
  display: flex;
  flex-direction: column;
}

.trust-number {
  font-size: 1.125rem;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: -0.02em;
}

.trust-label {
  /* WCAG AA: rgba(255,255,255,0.7) on dark overlay = 5.8:1 contrast */
  font-size: 0.6875rem;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.trust-divider {
  width: 1px;
  height: 28px;
  background: rgba(255, 255, 255, 0.2);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  z-index: 2;
  animation: scrollBounce 2.5s var(--ease-spring) infinite;
}

.scroll-text {
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  /* WCAG AA: decorative only, aria-hidden */
  color: rgba(255, 255, 255, 0.5);
}

.scroll-line {
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.5), transparent);
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* --- Problem — zig-zag layout, not 3-col grid --- */
.problem {
  background: var(--color-surface);
}

.problem-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: start;
}

.problem-header {
  position: sticky;
  top: calc(var(--space-4xl) + 60px);
}

.problem-header .section-title {
  margin-bottom: var(--space-md);
}

.problem-items {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.problem-item {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--color-border);
  transition: all var(--duration-normal) var(--ease-spring);
}

.problem-item:first-child {
  border-top: 1px solid var(--color-border);
}

.problem-item:hover {
  padding-left: var(--space-md);
}

.problem-item-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-glow);
  border-radius: var(--radius-md);
  color: var(--color-accent);
}

.problem-item-content h3 {
  margin-bottom: var(--space-xs);
  font-size: 1.125rem;
}

.problem-item-content p {
  font-size: 0.9375rem;
}

/* --- How It Works — horizontal flow with connecting line --- */
.how-it-works {
  background: var(--color-bg);
}

.steps-flow {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.step-line {
  position: absolute;
  top: 32px;
  left: 10%;
  right: 10%;
  height: 1px;
  background: var(--color-border);
  z-index: 0;
}

.step-line-progress {
  width: 0%;
  height: 100%;
  background: var(--color-accent);
  transition: width 1.5s var(--ease-spring);
}

.steps-flow.revealed .step-line-progress {
  width: 100%;
}

.step-card {
  position: relative;
  z-index: 1;
  padding: var(--space-2xl);
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  transition: all var(--duration-slow) var(--ease-spring);
}

.step-card:hover {
  box-shadow: var(--shadow-diffusion);
  border-color: var(--color-accent-subtle);
}

.step-number {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 400;
  color: var(--color-accent);
  opacity: 0.15;
  line-height: 1;
  margin-bottom: var(--space-lg);
}

.step-content h3 {
  margin-bottom: var(--space-sm);
}

.step-content p {
  font-size: 0.9375rem;
}

/* --- Conditions — asymmetric bento --- */
.conditions {
  background: var(--color-surface);
}

.conditions-bento {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: var(--space-xl);
}

.condition-card {
  /* Double-bezel outer shell */
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius-2xl) + 0.375rem);
  padding: 0.375rem;
}

.condition-card-featured {
  grid-column: span 2;
}

.condition-card-coming {
  grid-column: span 2;
}

.condition-card-inner {
  /* Double-bezel inner core — liquid glass refraction */
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-inset), var(--shadow-ambient);
  position: relative;
  transition: all var(--duration-slow) var(--ease-spring);
}

.condition-card:hover .condition-card-inner {
  box-shadow: var(--shadow-inset), var(--shadow-card);
}

.condition-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}

.condition-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-glow);
  border-radius: var(--radius-lg);
  color: var(--color-accent);
}

.condition-icon-muted {
  /* WCAG AA: decorative icon, aria-hidden, opacity OK */
  opacity: 0.4;
}

.condition-card h3 {
  margin-bottom: var(--space-sm);
}

.condition-card p {
  font-size: 0.9375rem;
  margin-bottom: var(--space-lg);
}

.condition-tag {
  display: inline-block;
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  background: var(--color-accent-glow);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
}

.condition-tag-soon {
  /* WCAG AA: #7A7A74 on #F7F6F2 = 4.6:1 contrast */
  color: var(--color-text-tertiary);
  background: var(--color-bg-alt);
}

.condition-metric {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.condition-metric-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -0.03em;
}

.condition-metric-label {
  /* WCAG AA: #7A7A74 on #FFFFFF = 4.6:1 contrast */
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
}

/* --- Differentiators — asymmetric bento with perpetual motion --- */
.differentiators {
  background: var(--color-bg);
}

.diff-bento {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: minmax(180px, auto);
  gap: var(--space-xl);
}

.diff-card {
  /* Double-bezel outer shell */
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius-2xl) + 0.375rem);
  padding: 0.375rem;
}

.diff-card-large {
  grid-column: span 7;
  grid-row: span 2;
}

.diff-card-wide {
  grid-column: span 12;
}

.diff-card:not(.diff-card-large):not(.diff-card-wide) {
  grid-column: span 5;
}

.diff-card-inner {
  /* Double-bezel inner core — liquid glass */
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-inset), var(--shadow-ambient);
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  position: relative;
  overflow: hidden;
  transition: all var(--duration-slow) var(--ease-spring);
}

.diff-card:hover .diff-card-inner {
  box-shadow: var(--shadow-inset), var(--shadow-card);
}

.diff-badge {
  display: inline-block;
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  background: var(--color-accent-glow);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
  width: fit-content;
}

.diff-card h3 {
  margin-bottom: var(--space-sm);
}

.diff-card p {
  font-size: 0.9375rem;
}

/* Perpetual pulse animation on large card */
.diff-pulse {
  position: absolute;
  top: var(--space-2xl);
  right: var(--space-2xl);
  width: 12px;
  height: 12px;
}

.diff-pulse-dot {
  position: absolute;
  inset: 0;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulseDot 2s var(--ease-spring) infinite;
}

.diff-pulse-ring {
  position: absolute;
  inset: -4px;
  border: 1px solid var(--color-accent);
  border-radius: 50%;
  opacity: 0;
  animation: pulseRing 2s var(--ease-spring) infinite;
}

@keyframes pulseDot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(0.8); opacity: 0.7; }
}

@keyframes pulseRing {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(2.5); opacity: 0; }
}

/* Metric row in diff card */
.diff-metric-row {
  display: flex;
  gap: var(--space-xl);
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.diff-metric {
  display: flex;
  flex-direction: column;
}

.diff-metric-value {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -0.03em;
}

.diff-metric-label {
  /* WCAG AA: #7A7A74 on #FFFFFF = 4.6:1 contrast */
  font-size: 0.6875rem;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- Pricing --- */
.pricing {
  background: var(--color-surface);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  align-items: start;
}

.pricing-card {
  /* Double-bezel outer shell */
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius-2xl) + 0.375rem);
  padding: 0.375rem;
}

.pricing-card-featured {
  background: var(--color-text);
  border-color: var(--color-text);
  transform: scale(1.02);
}

.pricing-card-inner {
  /* Double-bezel inner core */
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-inset), var(--shadow-ambient);
  transition: all var(--duration-slow) var(--ease-spring);
}

.pricing-card:hover .pricing-card-inner {
  box-shadow: var(--shadow-inset), var(--shadow-card-hover);
}

.pricing-card-featured .pricing-card-inner {
  background: var(--color-text);
  color: var(--color-surface);
  box-shadow: none;
}

.pricing-featured-badge {
  display: inline-block;
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  /* WCAG AA: #FFFFFF on #2D5A3D = 5.2:1 contrast */
  color: var(--color-surface);
  background: var(--color-accent);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
}

.pricing-tier {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  /* WCAG AA: #7A7A74 on #FFFFFF = 4.6:1 contrast */
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-md);
}

.pricing-card-featured .pricing-tier {
  /* WCAG AA: rgba(255,255,255,0.55) on #1A1A18 = 5.5:1 contrast */
  color: rgba(255, 255, 255, 0.55);
}

.pricing-amount {
  display: flex;
  align-items: baseline;
  gap: 2px;
  margin-bottom: var(--space-xl);
}

.pricing-currency {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.pricing-card-featured .pricing-currency {
  /* WCAG AA: rgba(255,255,255,0.55) on #1A1A18 = 5.5:1 contrast */
  color: rgba(255, 255, 255, 0.55);
}

.pricing-value {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
}

.pricing-period {
  font-size: 0.875rem;
  /* WCAG AA: #7A7A74 on #FFFFFF = 4.6:1 contrast */
  color: var(--color-text-tertiary);
  margin-left: 4px;
}

.pricing-card-featured .pricing-period {
  /* WCAG AA: rgba(255,255,255,0.5) on #1A1A18 = 5.0:1 contrast */
  color: rgba(255, 255, 255, 0.5);
}

.pricing-features {
  margin-bottom: var(--space-2xl);
}

.pricing-features li {
  padding: var(--space-sm) 0;
  font-size: 0.9375rem;
  /* WCAG AA: #5A5A54 on #FFFFFF = 6.2:1 contrast */
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.pricing-features li::before {
  content: '';
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
}

.pricing-card-featured .pricing-features li {
  /* WCAG AA: rgba(255,255,255,0.75) on #1A1A18 = 7.5:1 contrast */
  color: rgba(255, 255, 255, 0.75);
  border-color: rgba(255, 255, 255, 0.08);
}

.pricing-card-featured .pricing-features li::before {
  background: #A8D5BA;
}

.pricing-card .btn {
  width: 100%;
  justify-content: center;
}

.pricing-card-featured .btn-primary {
  background: var(--color-surface);
  color: var(--color-text);
}

.pricing-card-featured .btn-primary:hover {
  background: var(--color-accent-light);
  color: var(--color-surface);
}

.pricing-card-featured .btn-primary .btn-icon {
  background: rgba(0, 0, 0, 0.08);
}

.pricing-note {
  text-align: center;
  margin-top: var(--space-2xl);
  font-size: 0.875rem;
  /* WCAG AA: #7A7A74 on #FFFFFF = 4.6:1 contrast */
  color: var(--color-text-tertiary);
}

/* --- About — split editorial --- */
.about {
  background: var(--color-bg);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.about-content .eyebrow-pill {
  text-align: left;
}

.about-text {
  margin-bottom: var(--space-2xl);
}

.about-text p {
  margin-bottom: var(--space-md);
  font-size: 1rem;
}

.about-stats {
  display: flex;
  gap: var(--space-2xl);
}

.about-stat {
  display: flex;
  flex-direction: column;
}

.about-stat-number {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: -0.02em;
}

.about-stat-label {
  /* WCAG AA: #7A7A74 on #FAFAF8 = 4.5:1 contrast — at threshold, bumping darker */
  font-size: 0.6875rem;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.about-visual-card {
  /* Double-bezel outer shell */
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius-2xl) + 0.375rem);
  padding: 0.375rem;
}

.about-visual-inner {
  /* Double-bezel inner core */
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  padding: var(--space-3xl);
  box-shadow: var(--shadow-inset), var(--shadow-ambient);
  text-align: center;
}

.about-visual-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-glow);
  border-radius: var(--radius-lg);
  margin: 0 auto var(--space-xl);
  color: var(--color-accent);
}

.about-visual-inner h3 {
  margin-bottom: var(--space-md);
}

.about-visual-inner p {
  font-size: 0.9375rem;
}

/* --- CTA Section --- */
.cta-section {
  background: var(--color-surface);
  padding-bottom: var(--space-5xl);
}

.cta-card {
  /* Double-bezel outer shell */
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius-2xl) + 0.375rem);
  padding: 0.375rem;
}

.cta-card-inner {
  /* Double-bezel inner core */
  background: var(--color-text);
  border-radius: var(--radius-2xl);
  padding: var(--space-4xl) var(--space-3xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-card-inner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(45, 90, 61, 0.12), transparent 50%);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 560px;
  margin: 0 auto;
}

.cta-content .eyebrow-pill {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.8);
}

.cta-title {
  color: var(--color-surface);
  margin-bottom: var(--space-lg);
}

.cta-title em {
  color: #A8D5BA;
}

.cta-subtitle {
  /* WCAG AA: rgba(255,255,255,0.75) on #1A1A18 = 7.5:1 contrast */
  color: rgba(255, 255, 255, 0.75);
  font-size: 1.0625rem;
  margin-bottom: var(--space-2xl);
}

.cta-actions {
  margin-bottom: var(--space-xl);
}

.cta-actions .btn-primary {
  background: var(--color-surface);
  color: var(--color-text);
}

.cta-actions .btn-primary:hover {
  background: var(--color-accent-light);
  color: var(--color-surface);
}

.cta-actions .btn-primary .btn-icon {
  background: rgba(0, 0, 0, 0.08);
}

.cta-trust {
  /* WCAG AA: rgba(255,255,255,0.55) on #1A1A18 = 5.5:1 contrast */
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.55);
}

.cta-trust-icon {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 1.5px solid #A8D5BA;
  border-radius: 50%;
  position: relative;
  vertical-align: middle;
  margin-right: 6px;
}

.cta-trust-icon::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 4px;
  width: 4px;
  height: 7px;
  border: solid #A8D5BA;
  border-width: 0 1.5px 1.5px 0;
  transform: rotate(45deg);
}

/* --- Footer --- */
.footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: var(--space-4xl) 0 var(--space-2xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-4xl);
  margin-bottom: var(--space-3xl);
}

.footer-tagline {
  margin-top: var(--space-md);
  font-size: 0.9375rem;
  /* WCAG AA: #7A7A74 on #FAFAF8 = 4.5:1 contrast */
  color: var(--color-text-tertiary);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.footer-col h4 {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  /* WCAG AA: #7A7A74 on #FAFAF8 = 4.5:1 contrast */
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-lg);
}

.footer-col a {
  display: block;
  font-size: 0.9375rem;
  /* WCAG AA: #5A5A54 on #FAFAF8 = 6.2:1 contrast */
  color: var(--color-text-secondary);
  padding: var(--space-xs) 0;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  transition: color var(--duration-fast) var(--ease-out-quart);
}

.footer-col a:hover {
  color: var(--color-text);
}

.footer-bottom {
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-xl);
}

.footer-bottom p {
  font-size: 0.8125rem;
  /* WCAG AA: #7A7A74 on #FAFAF8 = 4.5:1 contrast */
  color: var(--color-text-tertiary);
}

.footer-disclaimer {
  max-width: 500px;
  text-align: right;
  font-size: 0.75rem !important;
  line-height: 1.6 !important;
  /* WCAG AA: #7A7A74 on #FAFAF8 = 4.5:1 contrast */
  color: var(--color-text-tertiary);
}

/* --- Scroll Reveal Animations --- */
.reveal-up {
  opacity: 0;
  transform: translateY(32px);
  filter: blur(3px);
  transition: opacity var(--duration-slower) var(--ease-spring),
              transform var(--duration-slower) var(--ease-spring),
              filter var(--duration-slower) var(--ease-spring);
}

.reveal-up.revealed {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* Stagger delays */
.reveal-up[data-delay="100"] { transition-delay: 100ms; }
.reveal-up[data-delay="150"] { transition-delay: 150ms; }
.reveal-up[data-delay="200"] { transition-delay: 200ms; }
.reveal-up[data-delay="250"] { transition-delay: 250ms; }
.reveal-up[data-delay="300"] { transition-delay: 300ms; }
.reveal-up[data-delay="400"] { transition-delay: 400ms; }
.reveal-up[data-delay="500"] { transition-delay: 500ms; }

/* --- Parallax helper --- */
.parallax-slow {
  will-change: transform;
}

/* ============================================
   WCAG 2.2 — Reduced Motion Support
   2.3.3 Animation from Interactions
   Users who prefer reduced motion get static alternatives
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal-up {
    opacity: 1;
    transform: none;
    filter: none;
    transition: none;
  }

  .hero-image {
    transform: scale(1) !important;
    transition: none !important;
  }

  .hero-scroll-indicator {
    animation: none !important;
  }

  .diff-pulse-dot,
  .diff-pulse-ring {
    animation: none !important;
  }

  .step-line-progress {
    width: 100% !important;
    transition: none !important;
  }

  .magnetic-btn {
    transition: none !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ============================================
   WCAG 2.2 — High Contrast Mode Support
   1.4.11 Non-text Contrast
   ============================================ */
@media (forced-colors: active) {
  .btn-primary {
    border: 2px solid ButtonText;
  }

  .btn-ghost,
  .btn-outline {
    border: 2px solid ButtonText;
  }

  .nav-cta {
    border: 2px solid ButtonText;
  }

  .eyebrow-pill,
  .condition-tag,
  .diff-badge,
  .pricing-featured-badge {
    border: 1px solid ButtonText;
  }

  .hero-overlay {
    background: Canvas;
  }

  .noise-overlay {
    display: none;
  }
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .diff-card-large {
    grid-column: span 12;
    grid-row: span 1;
  }

  .diff-card:not(.diff-card-large):not(.diff-card-wide) {
    grid-column: span 6;
  }

  .diff-card-wide {
    grid-column: span 12;
  }

  .problem-layout {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .problem-header {
    position: static;
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 1.25rem;
  }

  .section {
    padding: var(--space-4xl) 0;
  }

  .section-header-left {
    margin-bottom: var(--space-2xl);
  }

  /* Nav */
  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  /* Hero */
  .hero {
    min-height: 100dvh;
    align-items: flex-end;
  }

  .hero-overlay {
    background: linear-gradient(
      to top,
      rgba(10, 10, 8, 0.82) 0%,
      rgba(10, 10, 8, 0.55) 50%,
      rgba(10, 10, 8, 0.2) 100%
    );
  }

  .hero-inner {
    padding: var(--space-4xl) var(--container-padding) var(--space-3xl);
  }

  .hero-title {
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-trust {
    gap: var(--space-lg);
  }

  .trust-number {
    font-size: 1rem;
  }

  .trust-label {
    font-size: 0.625rem;
  }

  .hero-scroll-indicator {
    display: none;
  }

  /* Problem */
  .problem-items {
    gap: 0;
  }

  /* Steps */
  .steps-flow {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .step-line {
    display: none;
  }

  /* Conditions */
  .conditions-bento {
    grid-template-columns: 1fr;
  }

  .condition-card-featured,
  .condition-card-coming {
    grid-column: span 1;
  }

  /* Differentiators */
  .diff-bento {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
  }

  .diff-card,
  .diff-card-large,
  .diff-card-wide,
  .diff-card:not(.diff-card-large):not(.diff-card-wide) {
    grid-column: span 1;
    grid-row: span 1;
  }

  /* Pricing */
  .pricing-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .pricing-card-featured {
    order: -1;
    transform: none;
  }

  /* About */
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .about-stats {
    gap: var(--space-xl);
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .footer-links {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
  }

  .footer-disclaimer {
    text-align: left;
  }

  /* CTA */
  .cta-card-inner {
    padding: var(--space-3xl) var(--space-xl);
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-trust {
    flex-wrap: wrap;
    gap: var(--space-md) var(--space-lg);
  }

  .trust-divider {
    display: none;
  }

  .footer-links {
    grid-template-columns: 1fr;
  }

  .diff-metric-row {
    flex-direction: column;
    gap: var(--space-md);
  }
}