:root {
  --color-primary: #0066cc;
  --color-primary-focus: #0071e3;
  --color-primary-on-dark: #2997ff;
  --color-ink: #1d1d1f;
  --color-body: #1d1d1f;
  --color-body-on-dark: #ffffff;
  --color-body-muted: #cccccc;
  --color-ink-muted-80: #333333;
  --color-ink-muted-48: #7a7a7a;
  --color-divider-soft: #f0f0f0;
  --color-hairline: #e0e0e0;
  --color-canvas: #ffffff;
  --color-canvas-parchment: #f5f5f7;
  --color-surface-pearl: #fafafc;
  --color-surface-tile-1: #272729;
  --color-surface-tile-2: #2a2a2c;
  --color-surface-tile-3: #252527;
  --color-surface-black: #000000;
  --color-surface-chip-translucent: #d2d2d7;
  --color-on-primary: #ffffff;
  --color-on-dark: #ffffff;

  --spacing-xxs: 4px;
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 17px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  --spacing-section: 80px;

  --rounded-none: 0px;
  --rounded-xs: 5px;
  --rounded-sm: 8px;
  --rounded-md: 11px;
  --rounded-lg: 18px;
  --rounded-pill: 9999px;
  --rounded-full: 9999px;

  --font-family-display: 'Inter', system-ui, -apple-system, sans-serif;
  --font-family-body: 'Inter', system-ui, -apple-system, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family-body);
  background-color: var(--color-canvas);
  color: var(--color-body);
  line-height: 1.47;
  letter-spacing: -0.374px;
  font-size: 17px;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.global-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 44px;
  background-color: var(--color-surface-black);
  color: var(--color-on-dark);
  z-index: 1000;
}

.nav-container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-family-display);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: -0.12px;
}

.nav-center {
  display: flex;
  gap: 32px;
}

.nav-link {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: -0.12px;
  color: var(--color-on-dark);
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.nav-link:hover {
  opacity: 0.7;
}

.button-dark-utility {
  background-color: var(--color-ink);
  color: var(--color-on-dark);
  font-family: var(--font-family-body);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: -0.224px;
  border-radius: 9999px;
  padding: 6px 14px;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease;
}

.button-dark-utility:active {
  transform: scale(0.95);
}

.section-container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
}

.hero-section {
  min-height: 100vh;
  padding-top: 44px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background-color: var(--color-canvas);
}

.hero-content {
  text-align: center;
  max-width: 980px;
  padding: 0 24px;
  z-index: 1;
}

.hero-headline {
  font-family: var(--font-family-display);
  font-size: 64px;
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  margin: 0 0 20px 0;
}

.hero-subtitle {
  font-family: var(--font-family-display);
  font-size: 21px;
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: 0;
  color: var(--color-ink-muted-48);
  margin: 0 0 48px 0;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 16px;
}

.hero-buttons .app-store-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.badge-link {
  display: inline-block;
  text-decoration: none;
}

.badge-img {
  height: 50px;
  width: auto;
  display: block;
}

.button-secondary-pill {
  background-color: transparent;
  color: var(--color-primary);
  font-family: var(--font-family-body);
  font-size: 17px;
  font-weight: 400;
  letter-spacing: -0.374px;
  border-radius: var(--rounded-pill);
  padding: 11px 22px;
  border: 1px solid var(--color-primary);
  cursor: pointer;
  transition: transform 0.15s ease, background-color 0.2s ease;
}

.button-secondary-pill:hover {
  background-color: rgba(0, 102, 204, 0.05);
}

.button-secondary-pill:active {
  transform: scale(0.95);
}

.particle-container {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background-color: var(--color-primary);
  border-radius: 50%;
  opacity: 0.6;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) translateX(0);
    opacity: 0.2;
  }
  50% {
    transform: translateY(-50px) translateX(20px);
    opacity: 0.8;
  }
}

.experience-section {
  padding: 80px 0;
  background-color: var(--color-canvas);
}

.experience-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-headline {
  font-family: var(--font-family-display);
  font-size: 48px;
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  margin: 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.feature-card {
  text-align: center;
}

.card-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px;
  color: var(--color-primary);
}

.card-icon svg {
  width: 100%;
  height: 100%;
}

.card-title {
  font-family: var(--font-family-display);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.21;
  letter-spacing: 0.231px;
  color: var(--color-ink);
  margin: 0 0 8px 0;
}

.card-description {
  font-family: var(--font-family-body);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.43;
  letter-spacing: -0.224px;
  color: var(--color-ink-muted-48);
  margin: 0;
}

.faq-section {
  padding: var(--spacing-section) 0;
  background-color: var(--color-canvas);
}

.faq-header {
  text-align: center;
  margin-bottom: 48px;
}

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

.faq-item {
  border-bottom: 1px solid var(--color-hairline);
}

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

.faq-question {
  width: 100%;
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
}

.faq-question span {
  font-family: var(--font-family-body);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.47;
  letter-spacing: -0.374px;
  color: var(--color-ink);
}

.faq-icon {
  width: 20px;
  height: 20px;
  color: var(--color-ink-muted-48);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.faq-question[aria-expanded='true'] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-answer[aria-hidden='false'] {
  max-height: 200px;
  padding-bottom: 20px;
}

.faq-answer p {
  font-family: var(--font-family-body);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.57;
  letter-spacing: -0.224px;
  color: var(--color-ink-muted-48);
  margin: 0;
}

.footer-section {
  padding: 48px 24px;
  background-color: var(--color-canvas-parchment);
}

.footer-content {
  max-width: 980px;
  margin: 0 auto;
  text-align: center;
}

.footer-copyright {
  font-family: var(--font-family-body);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.33;
  color: var(--color-ink-muted-48);
  margin: 0 0 8px 0;
}

.footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
}

.footer-link {
  font-family: var(--font-family-body);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.33;
  color: var(--color-ink-muted-48);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--color-ink);
}

.footer-divider {
  color: var(--color-ink-muted-48);
}

@media (max-width: 1068px) {
  .hero-headline {
    font-size: 56px;
  }

  .section-headline {
    font-size: 40px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
  }
}

@media (max-width: 833px) {
  .nav-center {
    display: none;
  }
}

@media (max-width: 640px) {
  .hero-headline {
    font-size: 40px;
    line-height: 1.1;
  }

  .hero-subtitle {
    font-size: 21px;
    line-height: 1.4;
  }

  .section-headline {
    font-size: 32px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-buttons .app-store-row {
    flex-direction: column;
    gap: 12px;
  }

  .badge-img {
    max-width: 200px;
    height: auto;
  }

  .button-secondary-pill {
    width: 100%;
    max-width: 280px;
    text-align: center;
  }

  .faq-section,
  .experience-section {
    padding: 60px 0;
  }
}