/* Reset and Base Styles */
:root {
  /* Color Palette */
  --color-primary: #BA0416;
  --color-secondary: #FF5733;
  --color-white: #ffffff;
  --color-text-primary: #ffffff;
  --color-text-secondary: rgba(255, 255, 255, 0.9);
  --color-text-muted: rgba(255, 255, 255, 0.8);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Shadows */
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 8px 30px rgba(0, 0, 0, 0.3);
  
  /* Glass Effect */
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-bg-hover: rgba(255, 255, 255, 0.15);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-blur: blur(10px);
}

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

html {
  height: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background-image: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  background-attachment: fixed;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
  color: var(--color-text-primary);
  margin: 0;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
}

/* Touch-friendly targets */
a,
button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Prevent text selection on touch */
.navbar {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* Navigation */
.navbar {
  position: sticky;
  top: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  z-index: 1000;
  border-bottom: 1px solid var(--glass-border);
}

.nav-brand {
  font-size: 1.5em;
  font-weight: 700;
  color: var(--color-text-primary);
}

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

.navbar a {
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  font-weight: 500;
}

.navbar a:hover,
.navbar a.active {
  background: var(--glass-bg-hover);
  color: var(--color-text-primary);
}

.navbar a:focus {
  outline: 2px solid var(--color-white);
  outline-offset: 2px;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 4rem var(--spacing-md) 3rem;
  max-width: 900px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5em);
  font-weight: 800;
  margin-bottom: var(--spacing-sm);
  line-height: 1.2;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero .subtitle {
  font-size: clamp(1rem, 2.5vw, 1.3em);
  margin-bottom: 2.5rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero .tagline {
  margin-top: var(--spacing-md);
  font-size: 1.1em;
  font-style: italic;
  color: var(--color-text-secondary);
}

/* App Store Badge */
.app-store-link {
  display: inline-block;
  text-decoration: none;
  transition: opacity var(--transition-base);
}

.app-store-link img {
  height: 50px;
  width: auto;
  display: block;
}

.app-store-link:hover {
  opacity: 0.9;
}

.app-store-link:focus {
  outline: 2px solid var(--color-white);
  outline-offset: 4px;
  border-radius: 8px;
}

/* Features Section */
.features {
  padding: 3rem var(--spacing-md);
  max-width: 1200px;
  margin: 0 auto;
}

.features h2 {
  text-align: center;
  font-size: clamp(1.8rem, 4vw, 2.5em);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
}

.feature-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all var(--transition-base);
}

.feature-card:hover {
  background: var(--glass-bg-hover);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.feature-card h3 {
  font-size: 1.3em;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

.feature-card p {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Comparison Section */
.comparison {
  padding: 3rem var(--spacing-md);
  max-width: 1200px;
  margin: 0 auto;
}

.comparison h2 {
  text-align: center;
  font-size: clamp(1.8rem, 4vw, 2.5em);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
}

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

.comparison-item {
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
}

.comparison-item h3 {
  font-size: 1.5em;
  font-weight: 600;
  margin-bottom: 1.5rem;
  text-align: center;
}

.comparison-item p {
  margin-bottom: 0.8rem;
  font-size: 1.05em;
}

.comparison-item.highlight {
  background: var(--glass-bg-hover);
  border: 2px solid rgba(255, 255, 255, 0.3);
  box-shadow: var(--shadow-xl);
}

.comparison-item.highlight h3 {
  color: var(--color-text-primary);
  font-size: 1.7em;
}

/* CTA Section */
.cta {
  text-align: center;
  padding: 3rem var(--spacing-md);
  max-width: 800px;
  margin: 0 auto;
}

.cta h2 {
  font-size: clamp(1.8rem, 4vw, 2.5em);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.cta p {
  font-size: 1.2em;
  margin-bottom: 2.5rem;
  color: var(--color-text-secondary);
}

/* Footer */
footer {
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-top: 1px solid var(--glass-border);
  padding: var(--spacing-lg) var(--spacing-md) 1.5rem;
  margin-top: var(--spacing-xl);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.footer-brand h3 {
  font-size: 1.8em;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.footer-brand p {
  color: var(--color-text-muted);
}

.footer-links {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.footer-column {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.footer-column h4 {
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-size: 1.1em;
}

.footer-column a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-base);
}

.footer-column a:hover {
  color: var(--color-text-primary);
}

.footer-column a:focus {
  outline: 2px solid var(--color-white);
  outline-offset: 2px;
}

.footer-copyright {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--glass-border);
  color: rgba(255, 255, 255, 0.7);
}

/* Support Page Styles */
.content {
  max-width: 900px;
  margin: var(--spacing-lg) auto;
  padding: var(--spacing-lg);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
}

.content h1 {
  font-size: clamp(2rem, 4vw, 2.5em);
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.content h2 {
  font-size: clamp(1.5rem, 3vw, 2em);
  font-weight: 600;
  margin-top: 2.5rem;
  margin-bottom: var(--spacing-sm);
}

.content h3 {
  font-size: 1.4em;
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.8rem;
}

.content p {
  margin-bottom: var(--spacing-sm);
  line-height: 1.8;
  color: var(--color-text-secondary);
}

.content a {
  color: var(--color-text-primary);
  font-weight: 600;
  text-decoration: underline;
  transition: opacity var(--transition-base);
}

.content a:hover {
  opacity: 0.8;
}

.content a:focus {
  outline: 2px solid var(--color-white);
  outline-offset: 2px;
}

.faq-section {
  margin-top: var(--spacing-md);
}

.faq-item {
  margin-bottom: var(--spacing-md);
  padding: 1.5rem;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.faq-item h3 {
  margin-top: 0;
  color: var(--color-text-primary);
}

.faq-item p {
  margin-bottom: 0.5rem;
}

.faq-item ul {
  margin-left: 1.5rem;
  margin-top: 0.5rem;
}

.faq-item li {
  margin-bottom: 0.5rem;
  color: var(--color-text-secondary);
}

/* Mobile Responsive Design */
@media (max-width: 768px) {
  :root {
    --spacing-xs: 0.4rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 2.5rem;
  }

  .navbar {
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    position: sticky;
  }

  .nav-brand {
    font-size: 1.3em;
  }

  .nav-links {
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .navbar a {
    padding: 0.6rem 1.2rem;
    font-size: 0.95em;
  }

  .hero {
    padding: 2rem 1.5rem;
  }

  .features,
  .comparison,
  .cta {
    padding: 2rem 1.5rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .comparison-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .footer-content {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .footer-links {
    gap: var(--spacing-md);
    flex-direction: column;
  }

  .content {
    margin: var(--spacing-md) var(--spacing-sm);
    padding: var(--spacing-md) 1.5rem;
  }
  
  /* Mobile-specific typography */
  .hero h1 {
    font-size: clamp(1.75rem, 8vw, 2.5em);
  }
  
  .hero .subtitle {
    font-size: clamp(0.95rem, 4vw, 1.2em);
  }
}

@media (max-width: 480px) {
  .app-store-link img {
    height: 45px;
  }

  .feature-card,
  .comparison-item {
    padding: 1.25rem;
  }

  .content {
    padding: 1.5rem;
  }
  
  .hero {
    padding: 2rem 1rem;
  }
  
  .features,
  .comparison,
  .cta {
    padding: 2rem 1rem;
  }
  
  .navbar a {
    padding: 0.7rem 1rem;
    font-size: 0.9em;
  }
  
  .feature-card h3 {
    font-size: 1.2em;
  }
  
  .comparison-item h3 {
    font-size: 1.3em;
  }
  
  .comparison-item.highlight h3 {
    font-size: 1.5em;
  }
}

/* iPhone X and newer notch support */
@supports (padding: max(0px)) {
  body {
    padding-left: max(0px, env(safe-area-inset-left));
    padding-right: max(0px, env(safe-area-inset-right));
  }
  
  .navbar {
    padding-top: max(var(--spacing-sm), env(safe-area-inset-top));
    padding-left: max(var(--spacing-md), env(safe-area-inset-left));
    padding-right: max(var(--spacing-md), env(safe-area-inset-right));
  }
  
  footer {
    padding-bottom: max(1.5rem, env(safe-area-inset-bottom));
  }
}

/* Landscape mobile optimization */
@media (max-width: 768px) and (orientation: landscape) {
  .hero {
    padding: 2rem 1.5rem;
  }
  
  .hero h1 {
    font-size: clamp(1.5rem, 6vw, 2em);
  }
  
  .hero .subtitle {
    font-size: clamp(0.9rem, 3vw, 1.1em);
    margin-bottom: 1.5rem;
  }
  
  .features,
  .comparison,
  .cta {
    padding: 2rem 1.5rem;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Small landscape phones */
@media (max-width: 480px) and (orientation: landscape) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

/* Prefers Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  .navbar,
  .feature-card,
  .comparison-item,
  footer {
    border-width: 2px;
  }
  
  .cta-button {
    border: 2px solid var(--color-primary);
  }
}

/* Dark mode support (for devices with dark mode enabled) */
@media (prefers-color-scheme: dark) {
  /* Already optimized for dark theme, but we can enhance */
  .cta-button {
    box-shadow: var(--shadow-lg);
  }
}

/* Print styles */
@media print {
  .navbar,
  footer,
  .cta-button {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .content,
  .feature-card,
  .comparison-item {
    background: white;
    color: black;
    border: 1px solid #ccc;
  }
}