/* =============================================
   OpenSpeak AAC — Landing Page Styles
   Design: ClassDojo warmth + Linear polish
   ============================================= */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Brand Colors */
  --color-primary: #4A90D9;
  --color-primary-light: #6BA5E3;
  --color-primary-dark: #3A7BC8;
  --color-primary-subtle: rgba(74, 144, 217, 0.08);
  --color-primary-glow: rgba(74, 144, 217, 0.25);

  /* Dark */
  --color-dark: #0F172A;
  --color-dark-lighter: #1E293B;
  --color-dark-card: #1a2540;

  /* Accents */
  --color-orange: #F57C00;
  --color-orange-light: #FF9800;
  --color-orange-subtle: rgba(245, 124, 0, 0.1);
  --color-green: #43A047;
  --color-green-subtle: rgba(67, 160, 71, 0.1);
  --color-pink: #EC407A;
  --color-pink-subtle: rgba(236, 64, 122, 0.1);

  /* Neutrals */
  --color-white: #FFFFFF;
  --color-gray-50: #F8FAFC;
  --color-gray-100: #F1F5F9;
  --color-gray-200: #E2E8F0;
  --color-gray-300: #CBD5E1;
  --color-gray-400: #94A3B8;
  --color-gray-500: #64748B;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1E293B;
  --color-gray-900: #0F172A;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  --font-size-7xl: 4.5rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --nav-height: 72px;

  /* Borders & Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 50px -12px rgba(0, 0, 0, 0.15);
  --shadow-glow: 0 0 40px rgba(74, 144, 217, 0.15);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 6px 16px rgba(0,0,0,0.06);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-gray-700);
  background-color: var(--color-white);
  overflow-x: hidden;
}

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

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

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

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.section-tag--light {
  color: rgba(255, 255, 255, 0.8);
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-gray-900);
  line-height: 1.2;
  margin-bottom: var(--space-4);
  letter-spacing: -0.025em;
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-gray-500);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

/* ---------- Scroll Animations ---------- */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-family);
  font-weight: 600;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  border: 2px solid transparent;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::after {
  opacity: 1;
}

.btn--sm {
  padding: 8px 20px;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
}

.btn--lg {
  padding: 14px 28px;
  font-size: var(--font-size-base);
}

.btn--xl {
  padding: 18px 36px;
  font-size: var(--font-size-lg);
}

.btn--block {
  width: 100%;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  box-shadow: 0 2px 8px rgba(74, 144, 217, 0.35),
              inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(74, 144, 217, 0.4),
              inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--outline {
  border-color: rgba(255, 255, 255, 0.25);
  color: var(--color-white);
  backdrop-filter: blur(4px);
  background: rgba(255, 255, 255, 0.05);
}

.btn--outline:hover {
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.btn--white {
  background: var(--color-white);
  color: var(--color-dark);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.btn--white:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.btn--outline-white {
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--color-white);
}

.btn--outline-white:hover {
  border-color: var(--color-white);
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

/* ---------- Image Placeholders ---------- */
.image-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  border-radius: var(--radius-lg);
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-align: center;
  border: 2px dashed rgba(255, 255, 255, 0.15);
  position: relative;
  overflow: hidden;
}

.image-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
    rgba(74, 144, 217, 0.1) 0%,
    rgba(236, 64, 122, 0.05) 50%,
    rgba(67, 160, 71, 0.1) 100%
  );
  z-index: 0;
}

.image-placeholder > * {
  position: relative;
  z-index: 1;
}

.image-placeholder__hint {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.3);
}

.image-placeholder--hero {
  width: 100%;
  height: 100%;
  min-height: 300px;
  background: var(--color-dark-card);
}

.image-placeholder--problem {
  width: 100%;
  height: 100%;
  min-height: 350px;
  background: linear-gradient(135deg, #1a2540 0%, #0F172A 100%);
}

.image-placeholder--step {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #1a2540 0%, var(--color-dark-lighter) 100%);
}


/* =============================================
   NAVIGATION
   ============================================= */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition: all var(--transition-base);
}

.nav--scrolled {
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(20px) saturate(1.5);
  -webkit-backdrop-filter: blur(20px) saturate(1.5);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
}

.nav__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  z-index: 10;
}

.nav__logo-text {
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

.nav__links {
  display: none;
  align-items: center;
  gap: var(--space-8);
}

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.65);
  transition: color var(--transition-fast);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transition: width var(--transition-base);
}

.nav__link:hover {
  color: var(--color-white);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__actions {
  display: none;
  align-items: center;
  gap: 12px;
  z-index: 10;
}

.nav__signin {
  color: var(--color-gray-300);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-decoration: none;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1.5px solid rgba(255, 255, 255, 0.15);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.nav__signin:hover {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.06);
}

.nav__cta {
  z-index: 10;
}

.nav__mobile-signin {
  font-weight: 600;
  color: var(--color-primary-light) !important;
}

/* Hamburger */
.nav__hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 10;
}

.nav__hamburger-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition-base);
  transform-origin: center;
}

.nav__hamburger.is-active .nav__hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__hamburger.is-active .nav__hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav__hamburger.is-active .nav__hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.nav__mobile {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-slow);
  z-index: 5;
}

.nav__mobile.is-open {
  opacity: 1;
  visibility: visible;
}

.nav__mobile-link {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--color-white);
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-base);
}

.nav__mobile.is-open .nav__mobile-link {
  opacity: 1;
  transform: translateY(0);
}

.nav__mobile.is-open .nav__mobile-link:nth-child(1) { transition-delay: 100ms; }
.nav__mobile.is-open .nav__mobile-link:nth-child(2) { transition-delay: 150ms; }
.nav__mobile.is-open .nav__mobile-link:nth-child(3) { transition-delay: 200ms; }
.nav__mobile.is-open .nav__mobile-link:nth-child(4) { transition-delay: 250ms; }
.nav__mobile.is-open .btn { transition-delay: 300ms; opacity: 1; transform: translateY(0); }
.nav__mobile .btn { opacity: 0; transform: translateY(20px); max-width: 280px; }


/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--color-dark);
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  overflow: hidden;
}

.hero__bg-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74, 144, 217, 0.15) 0%, transparent 70%);
  top: -100px;
  right: -200px;
  pointer-events: none;
  animation: hero-glow 8s ease-in-out infinite alternate;
}

.hero__bg-glow--secondary {
  background: radial-gradient(circle, rgba(236, 64, 122, 0.08) 0%, transparent 70%);
  top: auto;
  bottom: -200px;
  right: auto;
  left: -200px;
  animation-delay: 4s;
}

@keyframes hero-glow {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.3); opacity: 1; }
}

.hero__container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 16px;
  background: rgba(74, 144, 217, 0.1);
  border: 1px solid rgba(74, 144, 217, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-primary-light);
  margin-bottom: var(--space-6);
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-green);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero__title {
  font-size: var(--font-size-4xl);
  font-weight: 900;
  color: var(--color-white);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
}

.hero__title-highlight {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, #a78bfa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-gray-400);
  line-height: 1.7;
  max-width: 540px;
  margin-bottom: var(--space-8);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.hero__trust-signals {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-6);
  margin-top: var(--space-6);
}
.hero__trust-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.65);
}

/* Hero Visual / Mockup */
.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__logo-img {
  max-width: 100%;
  height: auto;
  width: 480px;
  filter: drop-shadow(0 20px 40px rgba(74, 144, 217, 0.2));
  animation: heroFloat 4s ease-in-out infinite;
}

@keyframes heroFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.nav__logo-icon {
  border-radius: 8px;
  object-fit: contain;
}

.hero__image-container {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
}
.hero__illustration {
  width: 100%;
  height: auto;
  display: block;
}

/* Scroll indicator */
.hero__scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.hero__scroll-mouse {
  width: 24px;
  height: 38px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}

.hero__scroll-dot {
  width: 3px;
  height: 8px;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 2px;
  animation: scroll-down 2s ease-in-out infinite;
}

@keyframes scroll-down {
  0%, 100% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(12px); opacity: 0; }
}


/* =============================================
   TRUST METRICS
   ============================================= */
.trust-metrics {
  background: var(--color-white);
  padding: var(--space-12) 0;
  border-bottom: 1px solid var(--color-gray-100);
  position: relative;
}
.trust-metrics::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 80px;
  background: linear-gradient(to bottom, var(--color-dark), transparent);
  pointer-events: none;
}
.trust-metrics__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  text-align: center;
}
.trust-metrics__card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-6);
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}
.trust-metrics__card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.trust-metrics__icon {
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.trust-metrics__number {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-gray-900);
  letter-spacing: -0.02em;
}
.trust-metrics__label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}


/* =============================================
   PROBLEM SECTION
   ============================================= */
.problem {
  padding: var(--space-20) 0;
  background: var(--color-gray-50);
}

.problem__container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

.problem__title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-gray-900);
  line-height: 1.2;
  margin-bottom: var(--space-6);
  letter-spacing: -0.025em;
}

.problem__stat {
  color: var(--color-primary);
  font-size: 1.15em;
}

.problem__text {
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  line-height: 1.8;
  margin-bottom: var(--space-6);
}

.problem__highlight {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-6);
  background: var(--color-primary-subtle);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-primary);
}

.problem__highlight-icon {
  flex-shrink: 0;
  color: var(--color-primary);
  margin-top: 2px;
}

.problem__highlight p {
  font-size: var(--font-size-base);
  color: var(--color-gray-700);
  line-height: 1.7;
}

.problem__visual {
  display: flex;
  justify-content: center;
}

.problem__visual .image-placeholder {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}


/* =============================================
   FEATURES
   ============================================= */
.features {
  padding: var(--space-24) 0;
  background: var(--color-white);
}

.features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.feature-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.feature-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-card);
  transform: translateY(-4px);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}

.feature-card__icon--blue {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
}

.feature-card__icon--orange {
  background: var(--color-orange-subtle);
  color: var(--color-orange);
}

.feature-card__icon--green {
  background: var(--color-green-subtle);
  color: var(--color-green);
}

.feature-card__icon--pink {
  background: var(--color-pink-subtle);
  color: var(--color-pink);
}

.feature-card__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-3);
}

.feature-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.7;
}


/* =============================================
   HOW IT WORKS
   ============================================= */
.how-it-works {
  padding: var(--space-24) 0;
  background: var(--color-gray-50);
}

.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  max-width: 900px;
  margin: 0 auto;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
}

.step__number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  font-size: var(--font-size-xl);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
  box-shadow: 0 4px 14px rgba(74, 144, 217, 0.3);
  position: relative;
  z-index: 2;
  flex-shrink: 0;
}

.step__connector {
  display: none;
}

.step__content {
  flex: 1;
}

.step__image {
  margin-bottom: var(--space-6);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.step__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-3);
}

.step__desc {
  font-size: var(--font-size-base);
  color: var(--color-gray-500);
  line-height: 1.7;
  max-width: 320px;
  margin: 0 auto;
}




/* =============================================
   TESTIMONIALS
   ============================================= */
.testimonials {
  padding: var(--space-24) 0;
  background: var(--color-gray-50);
}

.testimonials__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.testimonial-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition-base);
  position: relative;
}

.testimonial-card:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-4px);
}

.testimonial-card__stars {
  display: flex;
  gap: 2px;
  margin-bottom: var(--space-5);
}

.testimonial-card__quote {
  font-size: var(--font-size-base);
  color: var(--color-gray-700);
  line-height: 1.8;
  margin-bottom: var(--space-6);
  font-style: italic;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial-card__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-lg);
  color: var(--color-white);
  flex-shrink: 0;
}

.testimonial-card__avatar--placeholder {
  background: linear-gradient(135deg, var(--color-primary) 0%, #7c3aed 100%);
}

.testimonial-card__name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-900);
}

.testimonial-card__role {
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
}

.testimonial-card__placeholder-note {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px dashed var(--color-gray-200);
  font-size: var(--font-size-xs);
  color: var(--color-orange);
  font-style: italic;
}


/* =============================================
   OPEN SOURCE CTA
   ============================================= */
.oss-cta {
  padding: var(--space-24) 0;
  background: var(--color-white);
}

.oss-cta__container {
  position: relative;
  background: linear-gradient(135deg, var(--color-dark) 0%, #1a2a4a 50%, var(--color-dark-lighter) 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-16) var(--space-8);
  text-align: center;
  overflow: hidden;
}

.oss-cta__bg-pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(74, 144, 217, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(236, 64, 122, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.oss-cta__title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin-bottom: var(--space-6);
  position: relative;
}

.oss-cta__text {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.6);
  max-width: 560px;
  margin: 0 auto var(--space-10);
  line-height: 1.7;
  position: relative;
}

.oss-cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
  position: relative;
}

.oss-cta__stats {
  display: flex;
  justify-content: center;
  gap: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
}

.oss-cta__stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}

.oss-cta__stat-number {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-white);
}

.oss-cta__stat-label {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.4);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}




/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--color-dark);
  padding: var(--space-16) 0 var(--space-8);
  color: rgba(255, 255, 255, 0.6);
}

.footer__top {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer__brand {
  max-width: 300px;
}

.footer__tagline {
  margin-top: var(--space-4);
  font-size: var(--font-size-sm);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.4);
}

.footer__links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.footer__col-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__link {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.4);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-white);
}

.footer__bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  text-align: center;
}

.footer__copyright {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.4);
}

.footer__credits {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.25);
}

.footer__credits a {
  color: rgba(255, 255, 255, 0.4);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer__credits a:hover {
  color: var(--color-white);
}


/* =============================================
   GLOBAL IMPACT TRACKING
   ============================================= */
.impact-tracking {
  padding: var(--space-24) 0;
  background: linear-gradient(135deg, #1E3A5F 0%, #2563EB 100%);
  position: relative;
  overflow: hidden;
}
.impact-tracking__bg-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
  top: -150px;
  right: -100px;
  pointer-events: none;
  animation: impact-glow 10s ease-in-out infinite alternate;
}
.impact-tracking__bg-glow--secondary {
  background: radial-gradient(circle, rgba(74, 144, 217, 0.12) 0%, transparent 70%);
  top: auto;
  bottom: -200px;
  right: auto;
  left: -150px;
  animation-delay: 5s;
}
@keyframes impact-glow {
  0% { transform: scale(1); opacity: 0.5; }
  100% { transform: scale(1.2); opacity: 1; }
}
.impact-tracking__subtitle {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.7);
  max-width: 500px;
  margin: 0 auto;
  line-height: 1.6;
}
.impact-tracking__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  max-width: 1000px;
  margin: 0 auto;
}
.impact-tracking__card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-8) var(--space-6);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.impact-tracking__card:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}
.impact-tracking__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  color: rgba(255, 255, 255, 0.85);
}
.impact-tracking__number {
  font-size: 48px;
  font-weight: 900;
  color: var(--color-white);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: var(--space-2);
  font-variant-numeric: tabular-nums;
}
.impact-tracking__label {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-1);
}
.impact-tracking__growing {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.4);
  font-weight: 500;
  font-style: italic;
}
.impact-tracking__cta {
  text-align: center;
  margin-top: var(--space-12);
}

/* Legacy .impact classes kept for backward compat with existing JS */
.impact__number {
  font-size: var(--font-size-5xl);
  font-weight: 900;
  color: var(--color-white);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: var(--space-2);
  font-variant-numeric: tabular-nums;
}


/* =============================================
   RESPONSIVE — TABLET (768px+)
   ============================================= */
@media (min-width: 768px) {
  .section-title {
    font-size: var(--font-size-4xl);
  }

  /* Nav */
  .nav__links {
    display: flex;
  }

  .nav__actions {
    display: flex;
  }

  .nav__hamburger {
    display: none;
  }

  /* Hero */
  .hero__title {
    font-size: var(--font-size-5xl);
  }

  .hero__container {
    grid-template-columns: 1fr 1fr;
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
  }

  /* Trust Metrics */
  .trust-metrics__grid { grid-template-columns: repeat(4, 1fr); }

  /* Impact Tracking */
  .impact-tracking__grid { grid-template-columns: repeat(2, 1fr); }

  /* Problem */
  .problem__container {
    grid-template-columns: 1.1fr 0.9fr;
  }

  /* Features */
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Steps */
  .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
  }

  .step__connector {
    display: block;
    position: absolute;
    top: 28px;
    left: calc(50% + 36px);
    width: calc(100% - 72px);
    height: 2px;
    background: linear-gradient(to right, var(--color-primary), rgba(74, 144, 217, 0.2));
    z-index: 1;
  }

  .step:last-child .step__connector {
    display: none;
  }

  /* Privacy */
  .privacy__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .privacy__title {
    font-size: var(--font-size-4xl);
  }

  /* Mockup Sections */
  .mockup-section__container {
    grid-template-columns: 1fr 1fr;
  }

  .mockup-section__content {
    order: 1;
  }

  .mockup-section__visual {
    order: 2;
  }

  .mockup-section--reverse .mockup-section__content {
    order: 2;
  }

  .mockup-section--reverse .mockup-section__visual {
    order: 1;
  }

  .mockup-section__title {
    font-size: var(--font-size-4xl);
  }

  /* Sign Language */
  .sign-language__container {
    grid-template-columns: 1fr 1fr;
  }

  .sign-language__content {
    text-align: left;
  }

  .sign-language__subtitle {
    margin: 0 0 var(--space-8);
  }

  .sign-language__features {
    margin: 0;
  }

  .sign-language__title {
    font-size: var(--font-size-4xl);
  }

  /* Testimonials */
  .testimonials__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonials__grid .testimonial-card:last-child {
    grid-column: 1 / -1;
    max-width: 50%;
    justify-self: center;
  }

  /* Footer */
  .footer__top {
    grid-template-columns: 1fr 2fr;
  }

  .footer__links {
    grid-template-columns: repeat(4, 1fr);
  }

  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  /* OSS CTA */
  .oss-cta__container {
    padding: var(--space-20) var(--space-12);
  }

  .oss-cta__title {
    font-size: var(--font-size-4xl);
  }
}


/* =============================================
   RESPONSIVE — DESKTOP (1024px+)
   ============================================= */
@media (min-width: 1024px) {
  .section-title {
    font-size: var(--font-size-5xl);
  }

  .hero__title {
    font-size: var(--font-size-6xl);
  }

  .hero__container {
    gap: var(--space-16);
    padding-top: var(--space-20);
    padding-bottom: var(--space-20);
  }

  /* Features */
  .features__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
  }

  /* Impact Tracking */
  .impact-tracking__grid { grid-template-columns: repeat(4, 1fr); }

  /* Testimonials */
  .testimonials__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .testimonials__grid .testimonial-card:last-child {
    grid-column: auto;
    max-width: none;
    justify-self: auto;
  }

  /* Problem */
  .problem__title {
    font-size: var(--font-size-4xl);
  }

  /* Privacy */
  .privacy__title {
    font-size: var(--font-size-5xl);
  }

  /* Mockup Sections */
  .mockup-section__title {
    font-size: var(--font-size-5xl);
  }

  /* Sign Language */
  .sign-language__title {
    font-size: var(--font-size-5xl);
  }

  /* OSS CTA */
  .oss-cta__title {
    font-size: var(--font-size-5xl);
  }

  .oss-cta__container {
    padding: var(--space-24) var(--space-16);
    border-radius: 32px;
  }
}


/* =============================================
   RESPONSIVE — LARGE DESKTOP (1280px+)
   ============================================= */
@media (min-width: 1280px) {
  .hero__title {
    font-size: var(--font-size-7xl);
  }
}


/* =============================================
   ACCESSIBILITY — Reduced Motion
   ============================================= */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  [data-animate] {
    opacity: 1;
    transform: none;
  }
}


/* =============================================
   FOCUS STYLES (Accessibility)
   ============================================= */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 3px;
}

/* Skip Link (for keyboard navigation) */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-3) var(--space-6);
  z-index: 9999;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  top: 0;
}

/* =============================================
   HERO FADE-IN ANIMATION
   ============================================= */
@keyframes heroFadeIn {
  0% { opacity: 0; transform: translateY(30px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes heroFadeInDelay {
  0%, 20% { opacity: 0; transform: translateY(30px); }
  100% { opacity: 1; transform: translateY(0); }
}

.hero__content {
  animation: heroFadeIn 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero__visual {
  animation: heroFadeInDelay 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}


/* =============================================
   PRIVATE BY DESIGN
   ============================================= */
.privacy {
  padding: var(--space-20) 0;
  background: var(--color-dark);
  position: relative;
  overflow: hidden;
}

.privacy__bg-glow {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74, 144, 217, 0.08) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  pointer-events: none;
}

.privacy__shield {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  font-size: 2rem;
  background: rgba(74, 144, 217, 0.1);
  border-radius: var(--radius-lg);
  margin: 0 auto var(--space-6);
}

.privacy__title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-white);
  text-align: center;
  margin-bottom: var(--space-4);
  letter-spacing: -0.025em;
}

.privacy__subtitle {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
  max-width: 560px;
  margin: 0 auto var(--space-12);
  line-height: 1.7;
}

.privacy__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  max-width: 1000px;
  margin: 0 auto;
}

.privacy__card {
  background: var(--color-dark-lighter);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: center;
  transition: all var(--transition-base);
}

.privacy__card:hover {
  border-color: rgba(74, 144, 217, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.privacy__card-icon {
  font-size: 2rem;
  margin-bottom: var(--space-4);
}

.privacy__card-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.privacy__card-desc {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.7;
}


/* =============================================
   TABLET MOCKUP SECTIONS
   ============================================= */
.mockup-section {
  padding: var(--space-20) 0;
  position: relative;
  overflow: hidden;
}

.mockup-section--light {
  background: var(--color-white);
}

.mockup-section--gray {
  background: var(--color-gray-50);
}

.mockup-section__container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

.mockup-section__content {
  order: 2;
}

.mockup-section__visual {
  order: 1;
  display: flex;
  justify-content: center;
}

.mockup-section__tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.mockup-section__title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-gray-900);
  line-height: 1.2;
  margin-bottom: var(--space-4);
  letter-spacing: -0.025em;
}

.mockup-section__desc {
  font-size: var(--font-size-lg);
  color: var(--color-gray-500);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.mockup-section__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.mockup-section__feature {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-base);
  color: var(--color-gray-600);
  font-weight: 500;
}

.mockup-section__feature-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(74, 144, 217, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}


/* ---------- Tablet Frame ---------- */
.tablet-frame {
  width: 100%;
  max-width: 380px;
  background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
  border-radius: 20px;
  padding: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.06);
  position: relative;
}

.tablet-frame__screen {
  background: #F8FAFC;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}

.tablet-frame__notch {
  width: 40px;
  height: 4px;
  background: #475569;
  border-radius: 2px;
  margin: 8px auto;
}

.tablet-frame__home {
  width: 36px;
  height: 4px;
  background: #475569;
  border-radius: 2px;
  margin: 8px auto;
}


/* ---------- AAC Grid Mockup ---------- */
.aac-mockup__header {
  background: var(--color-primary);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.aac-mockup__sentence {
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-white);
}

.aac-mockup__speak-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}

.aac-mockup__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 12px;
}

.aac-mockup__tile {
  aspect-ratio: 1;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: transform var(--transition-fast);
}

.aac-mockup__tile:hover {
  transform: scale(1.05);
}

.aac-mockup__tile-emoji {
  font-size: 1.5rem;
}

.aac-mockup__tile-label {
  font-family: var(--font-family);
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.aac-mockup__corebar {
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 8px 12px;
  background: #1E3A5F;
  margin: 0 12px 12px;
  border-radius: 8px;
}

.aac-mockup__coreword {
  font-family: var(--font-family);
  font-size: 0.6rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}


/* ---------- Sign Language Preview Mockup ---------- */
.sign-mockup__header {
  background: var(--color-primary);
  padding: 10px 16px;
  text-align: center;
}

.sign-mockup__header-text {
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-white);
}

.sign-mockup__body {
  padding: 24px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.sign-mockup__hand {
  font-size: 4rem;
  line-height: 1;
}

.sign-mockup__word {
  font-family: var(--font-family);
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-gray-900);
  letter-spacing: -0.02em;
}

.sign-mockup__description {
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.6;
  max-width: 240px;
}

.sign-mockup__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 14px;
  background: rgba(74, 144, 217, 0.08);
  border: 1px solid rgba(74, 144, 217, 0.2);
  border-radius: var(--radius-full);
  font-family: var(--font-family);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-primary);
}


/* ---------- Camera View Mockup ---------- */
.camera-mockup__screen {
  background: #0F172A;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}

.camera-mockup__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.05);
}

.camera-mockup__header-text {
  font-family: var(--font-family);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.camera-mockup__privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-family);
  font-size: 0.65rem;
  font-weight: 600;
  color: #43A047;
  background: rgba(67, 160, 71, 0.1);
  padding: 3px 8px;
  border-radius: var(--radius-full);
}

.camera-mockup__viewfinder {
  position: relative;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 220px;
}

.camera-mockup__guide {
  width: 180px;
  height: 160px;
  border: 2px dashed rgba(74, 144, 217, 0.4);
  border-radius: 16px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.camera-mockup__corner {
  position: absolute;
  width: 16px;
  height: 16px;
  color: var(--color-primary);
  font-family: var(--font-family);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
}

.camera-mockup__corner--tl { top: -8px; left: -8px; }
.camera-mockup__corner--tr { top: -8px; right: -8px; }
.camera-mockup__corner--bl { bottom: -8px; left: -8px; }
.camera-mockup__corner--br { bottom: -8px; right: -8px; }

.camera-mockup__hand-icon {
  font-size: 3rem;
  opacity: 0.6;
}

.camera-mockup__instruction {
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.5);
  margin-top: var(--space-4);
  text-align: center;
}

.camera-mockup__footer {
  display: flex;
  justify-content: center;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
}

.camera-mockup__capture-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
}

.camera-mockup__capture-inner {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(74, 144, 217, 0.3);
}


/* =============================================
   SIGN LANGUAGE SUPPORT SECTION
   ============================================= */
.sign-language {
  padding: var(--space-24) 0;
  background: var(--color-dark);
  position: relative;
  overflow: hidden;
}

.sign-language__bg-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74, 144, 217, 0.1) 0%, transparent 70%);
  top: -150px;
  left: -100px;
  pointer-events: none;
}

.sign-language__container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

.sign-language__content {
  text-align: center;
}

.sign-language__title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: var(--space-4);
  letter-spacing: -0.025em;
}

.sign-language__subtitle {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.5);
  max-width: 560px;
  margin: 0 auto var(--space-8);
  line-height: 1.7;
}

.sign-language__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 400px;
  margin: 0 auto;
}

.sign-language__feature {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-base);
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
}

.sign-language__feature-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(74, 144, 217, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
}

.sign-language__visual {
  display: flex;
  justify-content: center;
}

/* Camera mockup in dark section: override screen bg */
.sign-language .tablet-frame {
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.1);
}


/* ========== COMPARISON TABLE ========== */
.comparison {
  padding: var(--space-20) 0;
  background: var(--color-white);
}

.comparison__table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-top: var(--space-12);
}

.comparison__table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.comparison__table th,
.comparison__table td {
  padding: var(--space-4) var(--space-5);
  text-align: center;
  border-bottom: 1px solid var(--color-gray-200);
}

.comparison__table th {
  font-weight: 700;
  font-size: 0.95rem;
  padding-bottom: var(--space-5);
}

.comparison__table th small {
  display: block;
  font-weight: 500;
  font-size: 0.8rem;
  color: var(--color-gray-500);
  margin-top: 2px;
}

.comparison__table th:first-child,
.comparison__table td:first-child {
  text-align: left;
  font-weight: 600;
}

.comparison__highlight {
  background: rgba(74, 144, 217, 0.06);
  font-weight: 600;
  color: var(--color-primary);
}

.comparison__table thead th.comparison__highlight {
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.comparison__table thead th.comparison__highlight small {
  color: rgba(255, 255, 255, 0.8);
}

.comparison__no {
  color: var(--color-gray-400);
}

.comparison__yes {
  color: #43A047;
  font-weight: 700;
}

@media (max-width: 640px) {
  .comparison__table {
    font-size: 0.85rem;
  }
  .comparison__table th,
  .comparison__table td {
    padding: var(--space-3);
  }
}