@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  /* Brand Colors */
  --color-coral: #FF5D51;
  --color-purple: #9C51FF;
  --color-blue: #4988D4;
  --color-turquoise: #51FFB0;
  --color-dark: #1A1A1A;
  --color-light: #F5F5F7;
  
  /* Gradients */
  --gradient-brand: linear-gradient(135deg, var(--color-coral), var(--color-purple), var(--color-blue), var(--color-turquoise));
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* Modern CSS Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  line-height: 1.5;
  color: var(--color-dark);
  background-color: var(--color-light);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  will-change: transform;
  backface-visibility: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Layout */
.container {
  width: min(100% - 3rem, 1200px);
  margin-inline: auto;
  padding: var(--spacing-md);
}

/* Header/Hero Section */
.hero {
  min-height: 80vh;
  display: grid;
  place-items: center;
  padding: var(--spacing-lg) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-brand);
  opacity: 0.1;
  z-index: -1;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

.hero-text h1 {
  font-size: clamp(3.5rem, 7vw, 5rem);
  font-weight: 700;
  line-height: 1;
  margin-bottom: var(--spacing-sm);
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  color: transparent;
}

.hero-text .tagline {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: var(--spacing-sm);
}

.hero-text .subtitle {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  font-weight: 400;
  color: var(--color-dark);
  opacity: 0.9;
  margin-bottom: var(--spacing-lg);
}

.hero-image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: transform 0.3s ease;
  transform: translateZ(0);
}

/* Features Section */
.features {
  padding: var(--spacing-lg) 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.feature-card {
  background: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

/* App Screenshots */
.app-images {
  margin: var(--spacing-xl) 0;
}

.app-images img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  margin-bottom: var(--spacing-lg);
  transition: transform 0.3s ease;
}

.app-images img:hover {
  transform: scale(1.02);
}

/* Download Section */
.download {
  padding: var(--spacing-xl) 0;
  text-align: center;
  margin-top: var(--spacing-lg);
}

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

#testflight_button {
  background: var(--color-blue);
  color: white;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

#testflight_button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.app-icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-md);
  transition: transform 0.3s ease;
}

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

.download img {
  height: 48px;
  width: auto;
  margin: 0 auto;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.15));
  transition: filter 0.3s ease;
}

.download img:hover {
  filter: drop-shadow(0 4px 6px rgba(255, 93, 81, 0.3)) 
          drop-shadow(0 4px 6px rgba(156, 81, 255, 0.3));
}

.download p {
  margin-top: var(--spacing-xs);
  font-size: 0.9rem;
  opacity: 0.8;
}

/* Coming Soon Section */
#coming_soon {
  background: var(--gradient-brand);
  color: white;
  padding: var(--spacing-lg);
  margin: 0;
  text-align: center;
}

/* App Icon Section */
.app-icon-section {
  padding: var(--spacing-xs) 0 var(--spacing-xs);
  text-align: center;
}

.app-icon-section .app-icon {
  width: 96px;
  height: 96px;
  margin: 0 auto;
  border-radius: var(--radius-md);
  transition: transform 0.3s ease;
}

.app-icon-section .app-icon:hover {
  transform: scale(1.1);
}

/* Footer */
footer {
  padding: var(--spacing-xs) 0 var(--spacing-xs);
  text-align: center;
  opacity: 0.8;
}

footer a {
  color: var(--color-blue);
  text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --spacing-xl: 2rem;
    --spacing-lg: 1.5rem;
    --spacing-md: 1rem;
  }
  
  .container {
    width: calc(100% - 2rem);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-title {
    justify-content: center;
  }
  
  .app-icon {
    margin-top: 0;
  }
  
  .download-content {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .app-icon {
    width: 3rem;
    height: 3rem;
  }
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fadeIn 0.6s ease-out forwards;
}

/* Screenshot Showcase */
.screenshot-showcase {
  padding: var(--spacing-lg) 0;
  position: relative;
  overflow: hidden;
}

.screenshot-showcase::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-brand);
  opacity: 0.05;
  z-index: -1;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-lg);
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  color: transparent;
}

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.screenshot-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
}

.screenshot-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.screenshot-item img {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  object-fit: cover;
  transform: translateZ(0);
  backface-visibility: hidden;
}

.screenshot-item.full-width {
  grid-column: 1 / -1;
  aspect-ratio: auto;
}

.screenshot-item.full-width img {
  height: auto;
  object-fit: contain;
}

.screenshot-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-md);
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  color: white;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
}

.screenshot-item:hover .screenshot-caption {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .screenshot-grid {
    grid-template-columns: 1fr;
  }

  .screenshot-item .screenshot-caption {
	opacity: 1;
	transform: translateY(0);
  }
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal[style*="display: flex"] {
    opacity: 1;
}

.modal img {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    cursor: default;
}

/* Add cursor pointer to clickable images */
.screenshot-item img,
.hero-image img {
    cursor: pointer;
}