/* ============================================
   INFER LANDING PAGE - DESIGN SYSTEM
   ============================================ */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ============================================
   CSS CUSTOM PROPERTIES
   ============================================ */
:root {
  /* Brand Colors */
  --color-bg: #1C1C1E;
  --color-bg-dark: #121214;
  --color-surface: #2C2C2E;
  --color-surface-hover: #3A3A3C;
  --color-border: #3A3A3C;

  /* Gradient Colors */
  --color-teal: #3DD6C5;
  --color-purple: #8B5CF6;
  --color-magenta: #D94F9F;
  --color-pink: #E84A8A;

  /* Text Colors */
  --color-text: #FFFFFF;
  --color-text-secondary: #A1A1A6;
  --color-text-muted: #6E6E73;

  /* Accent Colors for Categories */
  --color-ai: #8B5CF6;
  --color-crypto: #F7931A;
  --color-silicon: #3DD6C5;
  --color-software: #5AC8FA;
  --color-fintech: #D94F9F;
  --color-quantum: #AF52DE;
  --color-cyber: #FF3B30;
  --color-emerging: #34C759;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-teal) 0%, var(--color-purple) 50%, var(--color-magenta) 100%);
  --gradient-text: linear-gradient(90deg, var(--color-teal) 0%, var(--color-purple) 50%, var(--color-magenta) 100%);
  --gradient-glow: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.3) 0%, transparent 70%);

  /* 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: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.5rem;
  --font-size-6xl: 4.5rem;

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

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.3);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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,
ol {
  list-style: none;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-md) 0;
  transition: background-color var(--transition-base), backdrop-filter var(--transition-base);
}

.nav.scrolled {
  background-color: rgba(28, 28, 30, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.nav__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.nav__logo-icon {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.nav__logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: #FFFFFF;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

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

.nav__cta {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav__cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.nav__mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-sm);
}

.nav__mobile-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: var(--transition-fast);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: var(--spacing-4xl) 0;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero__bg::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: var(--gradient-glow);
  animation: rotate 20s linear infinite;
}

.hero__bg::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(to top, var(--color-bg), transparent);
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

.hero__content {
  text-align: center;
  max-width: 900px;
  padding: 0 var(--spacing-lg);
}

.hero__logo {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--spacing-xl);
  animation: float 6s ease-in-out infinite;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

.hero__title {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
}

.hero__title-gradient {
  display: block;
  color: #FFFFFF;
}

.hero__subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-2xl);
}

.hero__cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-full);
  font-size: var(--font-size-base);
  font-weight: 600;
  transition: all var(--transition-fast);
}

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

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

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

.hero__scroll-indicator {
  position: absolute;
  bottom: var(--spacing-2xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {

  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }

  50% {
    transform: translateX(-50%) translateY(8px);
  }
}

.hero__scroll-indicator svg {
  width: 24px;
  height: 24px;
}

/* ============================================
   FEATURES SECTION
   ============================================ */
.features {
  padding: var(--spacing-4xl) 0;
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-dark) 100%);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-3xl);
}

.section-tag {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-purple);
  margin-bottom: var(--spacing-md);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-purple);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(139, 92, 246, 0.1);
}

.feature-card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(61, 214, 197, 0.15) 0%, rgba(139, 92, 246, 0.15) 100%);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
  font-size: 28px;
}

.feature-card__title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.feature-card__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================
   APP PREVIEW SECTION
   ============================================ */
.preview {
  padding: var(--spacing-4xl) 0;
  position: relative;
  overflow: hidden;
}

.preview__bg-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.2) 0%, transparent 60%);
  pointer-events: none;
}

.preview__content {
  display: flex;
  align-items: center;
  gap: var(--spacing-3xl);
}

.preview__text {
  flex: 1;
}

.preview__mockups {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-lg);
  perspective: 1000px;
}

.preview__phone {
  width: auto;
  max-width: 400px;
  height: 500px;
  object-fit: contain;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-slow);
}

.preview__phone:first-child {
  transform: rotateY(8deg) translateZ(20px);
}

.preview__phone:last-child {
  transform: rotateY(-8deg) translateZ(20px);
}

.preview__phone:hover {
  transform: rotateY(0) translateZ(40px) scale(1.02);
}

/* ============================================
   MISSION SECTION
   ============================================ */
.mission {
  padding: var(--spacing-4xl) 0;
  background: linear-gradient(180deg, var(--color-bg-dark) 0%, var(--color-bg) 100%);
}

.mission__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.mission__visual {
  position: relative;
}

.mission__logo {
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
  animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    filter: drop-shadow(0 0 20px rgba(139, 92, 246, 0.3));
  }

  50% {
    filter: drop-shadow(0 0 40px rgba(139, 92, 246, 0.5));
  }
}

.mission__text h2 {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
}

.mission__text p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.mission__highlight {
  display: flex;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.mission__stat {
  text-align: center;
}

.mission__stat-value {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.mission__stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ============================================
   AI FEATURES SECTION
   ============================================ */
.ai-features {
  padding: var(--spacing-4xl) 0;
}

.ai-features__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.ai-card {
  background: linear-gradient(135deg, var(--color-surface) 0%, rgba(139, 92, 246, 0.1) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  position: relative;
  overflow: hidden;
}

.ai-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
}

.ai-card__icon {
  font-size: 48px;
  margin-bottom: var(--spacing-lg);
}

.ai-card__title {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.ai-card__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================
   COMMUNITY FEATURES SECTION
   ============================================ */
.community-features {
  padding: var(--spacing-4xl) 0;
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-dark) 100%);
}

.community-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
  max-width: 1000px;
  margin: 0 auto;
}

.community-card {
  background: rgba(44, 44, 46, 0.4);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
  transition: all var(--transition-base);
}

.community-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 0, 0, 0.2);
  background: rgba(44, 44, 46, 0.6);
}

.community-card__icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  color: var(--color-text);
}

.x-card .community-card__icon {
  background: rgba(255, 255, 255, 0.1);
}

.reddit-card .community-card__icon {
  background: rgba(255, 69, 0, 0.1);
  color: #FF4500;
}

.community-card__icon svg {
  width: 24px;
  height: 24px;
}

.community-card__title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.community-card__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .community-card {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }
}

/* ============================================
   CATEGORIES SECTION
   ============================================ */
.categories {
  padding: var(--spacing-4xl) 0;
  background: var(--color-bg-dark);
}

.categories__tabs {
  display: flex;
  gap: var(--spacing-md);
  overflow-x: auto;
  padding: var(--spacing-md) var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
  scrollbar-width: none;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  mask-image: linear-gradient(to right, transparent, black 20px, black 90%, transparent);
}

.categories__tabs::-webkit-scrollbar {
  display: none;
}

.category-tab {
  flex-shrink: 0;
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.category-tab:hover,
.category-tab.active {
  border-color: var(--color-purple);
  color: var(--color-text);
}

.category-tab.active {
  background: rgba(139, 92, 246, 0.2);
}

.categories__preview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.news-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-fast);
}

.news-card:hover {
  border-color: var(--color-surface-hover);
  transform: translateY(-2px);
}

.news-card__tag {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(139, 92, 246, 0.15);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-purple);
  margin-bottom: var(--spacing-md);
}

.news-card__tag::before {
  content: '';
  width: 6px;
  height: 6px;
  background: currentColor;
  border-radius: 50%;
}

.news-card__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  line-height: 1.4;
}

.news-card__excerpt {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.news-card__meta {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta {
  padding: var(--spacing-4xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(61, 214, 197, 0.1) 0%, rgba(139, 92, 246, 0.1) 50%, rgba(217, 79, 159, 0.1) 100%);
  z-index: -1;
}

.cta__content {
  max-width: 600px;
  margin: 0 auto;
}

.cta__title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.cta__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-2xl);
}

.cta__buttons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.cta__store-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.cta__store-btn:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-purple);
}

.cta__store-btn svg {
  width: 28px;
  height: 28px;
}

.cta__store-btn-text {
  text-align: left;
}

.cta__store-btn-small {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.cta__store-btn-large {
  font-size: var(--font-size-base);
  font-weight: 600;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
  background: var(--color-bg-dark);
  border-top: 1px solid var(--color-border);
}

.footer__content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer__brand {
  max-width: 300px;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.footer__logo-icon {
  width: 32px;
  height: 32px;
}

.footer__logo-text {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: #FFFFFF;
}

.footer__tagline {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.footer__links {
  display: flex;
  gap: var(--spacing-3xl);
}

.footer__column h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

.footer__column ul {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer__column a {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
}

.footer__copyright {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.footer__social {
  display: flex;
  gap: var(--spacing-md);
}

.footer__social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.footer__social a:hover {
  background: var(--color-purple);
  color: var(--color-text);
}

.footer__social svg {
  width: 20px;
  height: 20px;
}

/* ============================================
   FOUNDERS SECTION
   ============================================ */
.founders {
  padding: var(--spacing-4xl) 0;
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-dark) 100%);
}

.founders__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  max-width: 1000px;
  margin: 0 auto;
}

.founder-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  text-align: center;
  transition: all var(--transition-base);
}

.founder-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-purple);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(139, 92, 246, 0.1);
}

.founder-card__avatar {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: 50%;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin: 0 auto var(--spacing-lg);
}

.founder-card__name {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.founder-card__bio {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
  text-align: left;
}

@media (max-width: 768px) {
  .founders__grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */
@media (max-width: 1024px) {
  .hero__title {
    font-size: var(--font-size-4xl);
  }

  .section-title {
    font-size: var(--font-size-3xl);
  }

  .preview__content {
    flex-direction: column;
    text-align: center;
  }

  .mission__content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .mission__visual {
    order: -1;
  }

  .mission__highlight {
    justify-content: center;
  }

  .ai-features__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
  }

  .nav__links {
    display: none;
  }

  .nav__mobile-toggle {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding: calc(var(--spacing-4xl) + 60px) 0 var(--spacing-3xl);
  }

  .hero__logo {
    width: 80px;
    height: 80px;
  }

  .hero__cta-group {
    flex-direction: column;
  }

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

  .preview__mockups {
    flex-direction: column;
    align-items: center;
  }

  .preview__phone {
    transform: none !important;
  }

  .preview__phone:first-child,
  .preview__phone:last-child {
    transform: none;
  }

  .features__grid {
    grid-template-columns: 1fr;
  }

  .footer__content {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .footer__links {
    flex-direction: column;
    gap: var(--spacing-xl);
  }

  .footer__bottom {
    flex-direction: column;
  }
}

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ============================================
   SCREENSHOT ZOOM MODAL
   ============================================ */
.preview__phone {
  cursor: zoom-in;
}

.screenshot-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background-color: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
  padding: var(--spacing-2xl);
}

.screenshot-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.screenshot-modal__content {
  max-width: 100%;
  max-height: 100%;
  border-radius: var(--radius-xl);
  box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
  transform: scale(0.9);
  transition: transform var(--transition-base);
  object-fit: contain;
}

.screenshot-modal.active .screenshot-modal__content {
  transform: scale(1);
}

.screenshot-modal__close {
  position: absolute;
  top: var(--spacing-xl);
  right: var(--spacing-xl);
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 24px;
  transition: background var(--transition-fast);
  z-index: 2100;
}

.screenshot-modal__close:hover {
  background: rgba(255, 255, 255, 0.2);
}