:root {
  --main-green: #3D6E70FF;
  --dark-green: #323E4FFF;
  --light-bg: #f4f7fa;
  --text-color: #000000;
}

body {
  font-family: Arial, sans-serif;
  background-color: var(--light-bg);
  color: var(--text-color);
  margin: 0;
  padding: 0;
}

header {
  background-color: var(--main-green);
  color: #aababf;
  padding: 1.5em 1em 0.5em 1em;
  text-align: center;
}

nav {
  background-color: var(--dark-green);
  display: flex;
  justify-content: center;
  gap: 2em;
  padding: 0.75em 0;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

nav a:hover {
  text-decoration: underline;
}

main {
  padding: 2em;
}

.download-button {
  display: inline-block;
  margin: 1em 0;
  padding: 0.75em 1.5em;
  background-color: var(--main-green);
  color: white;
  text-decoration: none;
  border-radius: 6px;
  font-weight: bold;
}

section {
  margin-bottom: 2em;
}

footer {
  text-align: center;
  font-size: 0.85em;
  color: #777;
  margin: 3em 0 1em 0;
}

/* Screenshot Gallery Styles */
.screenshot-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2em;
  margin: 2em 0;
}

.screenshot-gallery figure {
  margin: 0;
  background: white;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: transform 0.2s ease;
}

.screenshot-gallery figure:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
}

.screenshot-gallery img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
  max-height: 400px;
}

.screenshot-gallery figcaption {
  padding: 1em;
  text-align: center;
  font-weight: bold;
  color: var(--text-color);
}

/* Responsive Design */
@media (max-width: 768px) {
  nav {
    flex-direction: column;
    gap: 1em;
  }
  
  main {
    padding: 1em;
  }
  
  .screenshot-gallery {
    grid-template-columns: 1fr;
  }
}

/* Modern button improvements */
.download-button:hover {
  background-color: var(--dark-green);
  transform: translateY(-1px);
  transition: all 0.2s ease;
}