/* Vitals AI Website Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Primary Colors */
  --primary-blue: #007AFF;
  --primary-green: #34C759;
  --primary-purple: #AF52DE;
  
  /* Secondary Colors */
  --secondary-orange: #FF9500;
  --secondary-pink: #FF2D92;
  --secondary-teal: #5AC8FA;
  
  /* Neutral Colors */
  --background-primary: #FFFFFF;
  --background-secondary: #F2F2F7;
  --background-tertiary: #FFFFFF;
  --text-primary: #000000;
  --text-secondary: #3C3C43;
  --text-tertiary: #8E8E93;
  --border-color: #C6C6C8;
  
  /* Card Colors */
  --card-background: #FFFFFF;
  --card-shadow: rgba(0, 0, 0, 0.1);
  
  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-size-h1: 2.5rem;
  --font-size-h2: 2rem;
  --font-size-h3: 1.5rem;
  --font-size-body: 1rem;
  --font-size-small: 0.875rem;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* Border Radius */
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
}

body {
  font-family: var(--font-family);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background-secondary);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Header Styles */
.header {
  background-color: var(--background-primary);
  border-bottom: 1px solid var(--border-color);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--text-primary);
}

.logo img {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-sm);
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 600;
}

.nav {
  display: flex;
  gap: var(--spacing-lg);
}

.nav a {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav a:hover {
  color: var(--primary-blue);
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-primary);
  cursor: pointer;
  padding: var(--spacing-xs);
}

.mobile-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--background-primary);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 4px 16px var(--card-shadow);
}

.mobile-nav.active {
  display: block;
}

.mobile-nav a {
  display: block;
  padding: var(--spacing-md);
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  border-bottom: 1px solid var(--background-secondary);
  transition: background-color 0.2s ease;
}

.mobile-nav a:hover {
  background-color: var(--background-secondary);
  color: var(--primary-blue);
}

.mobile-nav a:last-child {
  border-bottom: none;
}

.mobile-download {
  background-color: var(--text-primary) !important;
  color: white !important;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: 600;
  margin: var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  justify-content: center;
}

.mobile-download:hover {
  background-color: #333333 !important;
}

.mobile-download .apple-icon {
  width: 16px;
  height: 16px;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
  color: white;
  padding: var(--spacing-lg) 0; /* Reduced from var(--spacing-xl) */
  text-align: center;
}

.hero .container {
  max-width: 800px; /* Constrain hero content width */
}

.hero h1 {
  font-size: var(--font-size-h1);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
  opacity: 0.9;
}

.hero-app-icon {
  width: 100px; /* Reduced from 120px */
  height: 100px; /* Reduced from 120px */
  border-radius: 20px; /* Adjusted proportionally */
  margin: var(--spacing-md) auto; /* Reduced from var(--spacing-lg) */
  display: block;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3); /* Slightly smaller shadow */
}

/* Card Styles */
.card {
  background-color: var(--card-background);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  box-shadow: 0 4px 16px var(--card-shadow);
  margin-bottom: var(--spacing-lg);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

.feature-card {
  text-align: center;
  padding: var(--spacing-lg);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.feature-card h3 {
  font-size: var(--font-size-h3);
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
}

/* Button Styles */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-md);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
  font-size: var(--font-size-body);
}

.btn-primary {
  background-color: var(--primary-blue);
  color: white;
}

.btn-primary:hover {
  background-color: #0056CC;
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: transparent;
  color: white;
  border: 2px solid white;
}

.btn-secondary:hover {
  background-color: white;
  color: var(--primary-blue);
}

.btn-download {
  background-color: var(--text-primary);
  color: white;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
}

.btn-download:hover {
  background-color: #333333;
  transform: translateY(-1px);
}

.btn-download .apple-icon {
  width: 16px;
  height: 16px;
}

.hero-download {
  background-color: white;
  color: var(--text-primary);
  font-size: var(--font-size-body);
  padding: var(--spacing-sm) var(--spacing-lg);
}

.hero-download:hover {
  background-color: var(--background-secondary);
  transform: translateY(-2px);
}

.hero-download .apple-icon {
  width: 20px;
  height: 20px;
}

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

/* Section Styles */
.section {
  padding: var(--spacing-xl) 0;
}

.section h2 {
  font-size: var(--font-size-h2);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
}

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

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

.footer-links a {
  color: white;
  text-decoration: none;
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.footer-links a:hover {
  opacity: 1;
}

/* Legal Pages */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

.legal-content h1 {
  font-size: var(--font-size-h2);
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
}

.legal-content h2 {
  font-size: var(--font-size-h3);
  margin: var(--spacing-lg) 0 var(--spacing-md) 0;
  color: var(--text-primary);
}

.legal-content h3 {
  font-size: 1.25rem;
  margin: var(--spacing-md) 0 var(--spacing-sm) 0;
  color: var(--text-secondary);
}

.legal-content p {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
}

.legal-content ul {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

.legal-content li {
  margin-bottom: var(--spacing-xs);
  color: var(--text-secondary);
}

/* Contact Form */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-family: var(--font-family);
  font-size: var(--font-size-body);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .header-content {
    gap: var(--spacing-md);
  }
  
  .nav {
    gap: var(--spacing-md);
  }
  
  .btn-download {
    font-size: 0.8rem;
    padding: var(--spacing-xs) var(--spacing-sm);
  }
}

@media (max-width: 768px) {
  .nav {
    display: none; /* Hide desktop navigation */
  }
  
  .mobile-menu-toggle {
    display: block; /* Show hamburger menu on mobile */
  }
  
  .header .btn-download {
    display: none; /* Hide only the header download button on mobile */
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1.125rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .hero-app-icon {
    width: 70px; /* Reduced from 80px */
    height: 70px; /* Reduced from 80px */
    margin: var(--spacing-sm) auto; /* Reduced spacing */
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-links {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  /* Mobile screenshot carousel */
  .screenshot-carousel {
    max-width: 240px; /* Reduced from 280px */
  }
  
  .screenshot-container {
    border-radius: 18px; /* Smaller border radius */
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.1); /* Lighter shadow */
  }
  
  .screenshot {
    border-radius: 18px;
  }
  
  .carousel-dots {
    gap: 6px; /* Smaller gap */
  }
  
  .dot {
    width: 8px; /* Even smaller dots on mobile */
    height: 8px;
  }
}

/* Screenshot Carousel */
.screenshot-section {
  background-color: var(--background-primary);
}

.screenshot-carousel {
  max-width: 300px; /* Reduced from 400px */
  margin: 0 auto;
  position: relative;
}

.screenshot-container {
  position: relative;
  width: 100%;
  aspect-ratio: 9/19.5; /* iPhone aspect ratio */
  overflow: hidden;
  border-radius: 20px; /* Slightly smaller border radius */
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12); /* Adjusted shadow */
  background-color: var(--background-secondary);
}

.screenshot-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
}

.screenshot {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
  border-radius: 20px;
}

.screenshot.active {
  opacity: 1;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.dot {
  width: 10px; /* Reduced from 12px */
  height: 10px; /* Reduced from 12px */
  border-radius: 50%;
  border: none;
  background-color: var(--border-color);
  cursor: pointer;
  transition: all 0.3s ease;
}

.dot:hover {
  background-color: var(--text-tertiary);
  transform: scale(1.1);
}

.dot.active {
  background-color: var(--primary-blue);
  transform: scale(1.2);
}

/* Health Metrics Icons */
.health-icon {
  color: var(--primary-blue);
}

.health-icon.heart { color: var(--secondary-pink); }
.health-icon.sleep { color: var(--primary-purple); }
.health-icon.activity { color: var(--primary-green); }
.health-icon.brain { color: var(--secondary-teal); }