* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: #ffffff;
  color: #111827;
  line-height: 1.6;
}

.container {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1rem;
}

header.header {
  background-color: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: #111827;
}

.hero {
  position: relative;
  background: linear-gradient(135deg, #dbeafe 0%, #ffffff 50%, #dbeafe 100%);
  padding: 5rem 1rem;
  overflow: hidden;
}

.hero-gradient {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(219, 234, 254, 0.5) 0%, rgba(255, 255, 255, 0) 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 48rem;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.75rem);
  font-weight: 700;
  color: #111827;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero-description {
  font-size: 1.25rem;
  color: #4b5563;
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

.button-group {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 3rem;
}

@media (min-width: 640px) {
  .button-group {
    flex-direction: row;
    justify-content: center;
  }
}

.app-button {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 2rem;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  text-align: center;
  white-space: nowrap;
}

.app-button:hover {
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
}

.app-button-appstore {
  background-color: #000000;
  color: #ffffff;
}

.app-button-appstore:hover {
  background-color: #1a1a1a;
}

.app-button-googleplay {
  background-color: #34a853;
  color: #ffffff;
}

.app-button-googleplay:hover {
  background-color: #2d8659;
}

.hero-image {
  margin-top: 3rem;
}

.hero-image img {
  border-radius: 1rem;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  max-width: 40rem;
  width: 100%;
}

.features {
  padding: 5rem 1rem;
  background-color: #ffffff;
}

.features-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: clamp(1.875rem, 4vw, 2.25rem);
  font-weight: 700;
  color: #111827;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.25rem;
  color: #4b5563;
  max-width: 42rem;
  margin: 0 auto;
  line-height: 1.6;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  background-color: var(--accent-light);
  padding: 2rem;
  border-radius: 0.75rem;
  transition: all 0.3s ease;
}

.feature-card:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.feature-title {
  font-size: 1.375rem;
  font-weight: 700;
  color: #111827;
  margin-bottom: 0.75rem;
}

.feature-description {
  color: #4b5563;
  line-height: 1.6;
}

.benefits {
  padding: 5rem 1rem;
  background-color: #f9fafb;
}

.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 768px) {
  .benefits-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

.benefits-content {
  display: flex;
  flex-direction: column;
}

.benefits-list {
  list-style: none;
  margin-top: 1.5rem;
}

.benefits-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 1.125rem;
  color: #374151;
}

.benefits-list svg {
  flex-shrink: 0;
  margin-top: 0.25rem;
}

.benefits-image img {
  border-radius: 1rem;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  max-width: 100%;
  height: auto;
  display: block;
  width: 100%;
}

.cta {
  background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
  padding: 6rem 1rem;
  position: relative;
  overflow: hidden;
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 56rem;
  margin: 0 auto;
}

.cta-title {
  font-size: clamp(1.875rem, 4vw, 2.25rem);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.cta-description {
  font-size: 1.25rem;
  color: #dbeafe;
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 640px) {
  .cta-buttons {
    flex-direction: row;
    justify-content: center;
  }
}

.cta-button {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background-color: #ffffff;
  color: #111827;
  padding: 1rem 2rem;
  border-radius: 0.5rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  font-weight: 600;
}

.cta-button:hover {
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
}

.footer {
  background-color: #111827;
  color: #9ca3af;
  padding: 3rem 1rem;
}

.footer-content {
  text-align: center;
}

.footer-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  color: #ffffff;
  font-size: 1.25rem;
  font-weight: 700;
}

.footer-text {
  font-size: 0.875rem;
}

@media (max-width: 640px) {
  .hero {
    padding: 3rem 1rem;
  }

  .hero-title {
    font-size: 2rem;
  }

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

  .features {
    padding: 3rem 1rem;
  }

  .benefits {
    padding: 3rem 1rem;
  }

  .cta {
    padding: 3rem 1rem;
  }

  .cta-title {
    font-size: 1.5rem;
  }

  .cta-description {
    font-size: 1rem;
  }
}