/* === Common Choir.jp Styles === */
html,
body {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
  color: #333;
  background: #f9f9f9;
}

header {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5em 0;
  text-align: center;
  color: white;
}

main {
  max-width: 800px;
  margin: 0 auto;
  background-color: white;
  padding: 1em;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h1 {
  margin: 0;
  line-height: 1.2;
}

h2 {
  color: #555;
  border-bottom: 2px solid #ccc;
  padding-bottom: 0.3em;
}

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

a:hover {
  text-decoration: underline;
}

.flyer {
  max-width: 100%;
  height: auto;
  margin-top: 1em;
  border: 1px solid #ccc;
  max-height: 90vh;
}

.btn {
  display: inline-block;
  margin-top: 1em;
  padding: 0.5em 1em;
  background: #4b6c9e;
  /* default blue */
  color: white;
  text-decoration: none;
  border-radius: 4px;
}

footer {
  text-align: center;
  padding: 1em 0;
  background-color: #eee;
  font-size: 0.9em;
  margin-left: auto;
  margin-right: auto;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1em;
}

#canvas {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 2em auto;
  border: 1px solid #ccc;
}