/* Global styles */
body {
  background-color: #181616;
  /* dark background */
  color: #C5C9C5;
  /* light gray font color */
  font-family: 'Arial', sans-serif;
  /* default font, fallback */
  margin: 0;
  padding: 0;
}

/* Optional: Japanese logo styling */
.logo {
  font-family: 'Noto Serif JP', serif;
  /* Japanese-friendly font */
  font-size: 48px;
  font-weight: bold;
  color: #C5C9C5;
  text-align: center;
  margin: 20px 0;
}

/* Styled button links */
.button-link {
  display: inline-block;
  padding: 12px 24px;
  background-color: #C5C9C5;
  /* light gray */
  color: #181616;
  /* dark text to contrast */
  font-weight: bold;
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
  text-align: center;
  margin: 10px 5px;
}

/* Hover effect */
.button-link:hover {
  background-color: #aaaaaa;
  /* slightly darker */
  transform: translateY(-2px);
  /* subtle lift */
  box-shadow: 0 6px 10px rgba(0, 0, 0, 0.4);
}

/* Optional: active state when clicked */
.button-link:active {
  transform: translateY(0);
  box-shadow: 0 3px 5px rgba(0, 0, 0, 0.3);
}

.photo-gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  /* space between images */
  justify-content: center;
  margin-top: 20px;
}

.photo-gallery img {
  max-width: 300px;
  /* maximum width */
  width: 100%;
  /* scales down proportionally */
  height: auto;
  /* keeps aspect ratio */
  border-radius: 8px;
  /* optional: rounded corners */
  margin: 10px;
}

.pdf-container {
  background: var(--background-color, #fff);
  padding: 1rem;
}

.pdf-container canvas {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  max-width: 100%;
}

/* Header styling */
header {
  text-align: center;
  padding: 20px 0;
  border-bottom: 1px solid #333333;
}

/* Main content styling */
main {
  padding: 20px;
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Footer styling */
footer {
  text-align: center;
  padding: 20px 0;
  border-top: 1px solid #333333;
  font-size: 0.9rem;
  color: #aaaaaa;
  /* slightly lighter for footer */
}