:root {
  --primary-blue: #4460F1;
  --secondary-blue: #6989FF;
  --primary-pink: #FF6B8E;
  --light-pink: #FFA5B9;
  --background-color: #F5F7FA;
  --card-background: #FFFFFF;
  --text-dark: #333333;
  --text-light: #666666;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --border-radius: 16px;
  --max-width: 1200px;
}

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

body {
  font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
    Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background-color: var(--background-color);
  color: var(--text-dark);
  line-height: 1.6;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Header */
.header {
  padding: var(--spacing-lg) 0;
  position: relative;
}

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

.logo {
  font-size: 2rem;
  font-weight: bold;
  color: var(--primary-blue);
  display: flex;
  align-items: center;
}

.logo-icon {
  width: 40px;
  height: 40px;
  margin-right: 10px;
  border-radius: 8px;
}

.logo span {
  color: var(--primary-pink);
}

/* Hero Section */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.hero-title {
  font-size: 3rem;
  font-weight: bold;
  margin-bottom: var(--spacing-md);
  color: var(--primary-blue);
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-lg);
  color: var(--text-light);
}

.app-screenshot {
  width: 100%;
  max-width: 350px;
  border-radius: var(--border-radius);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  margin: var(--spacing-lg) 0;
}

/* Features Section */
.features {
  padding: var(--spacing-xl) 0;
  background-color: #fff;
}

.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: var(--spacing-xl);
  color: var(--primary-blue);
}

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

.feature-card {
  background-color: var(--card-background);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: transform 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background-color: var(--light-pink);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.feature-icon.blue {
  background-color: var(--secondary-blue);
}

.feature-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-blue);
}

.feature-description {
  color: var(--text-light);
}

/* Download Section */
.download {
  padding: var(--spacing-xl) 0;
  text-align: center;
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-pink));
  color: white;
  border-radius: var(--border-radius);
  margin: var(--spacing-xl) auto;
  max-width: 90%;
}

.download-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

.download-description {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-lg);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

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

.app-store-button {
  display: inline-block;
  background-color: white;
  border-radius: 12px;
  padding: 12px 24px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.app-store-button:hover {
  transform: scale(1.05);
}

.app-store-button img {
  height: 40px;
}

/* Footer */
.footer {
  background-color: white;
  padding: var(--spacing-lg) 0;
  text-align: center;
  margin-top: var(--spacing-xl);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.footer-link {
  color: var(--primary-blue);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.copyright {
  color: var(--text-light);
  font-size: 0.9rem;
}

/* Buttons */
.button {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
}

.button-primary {
  background-color: var(--primary-blue);
  color: white;
  box-shadow: 0 4px 12px rgba(68, 96, 241, 0.2);
}

.button-primary:hover {
  background-color: var(--secondary-blue);
  transform: translateY(-2px);
}

.button-secondary {
  background-color: var(--primary-pink);
  color: white;
  box-shadow: 0 4px 12px rgba(255, 107, 142, 0.2);
}

.button-secondary:hover {
  background-color: var(--light-pink);
  transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .section-title {
    font-size: 2rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .app-store-buttons {
    flex-direction: column;
    align-items: center;
  }
}