body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  background-color: #f0f2f5;
  color: #333;
  min-height: 100vh;
  margin: 0;
  padding: 20px;
  box-sizing: border-box;
}

.body-container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  background-color: #fff;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 800px;
  text-align: center;
}

h1 {
  color: #1c1e21;
  margin-bottom: 8px;
}

.description {
  color: #606770;
  margin-bottom: 30px;
}

.input-group {
  margin-bottom: 20px;
}

.input-group label {
  font-weight: 600;
  margin-right: 10px;
}

.input-group input {
  padding: 8px;
  border-radius: 6px;
  border: 1px solid #dddfe2;
  width: 80px;
  font-size: 16px;
  text-align: center;
}

.result-area {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #e9ebee;
}

#result-title {
  color: #007bff;
  margin-bottom: 20px;
}

#patterns-container {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  justify-content: center;
  font-size: 24px; /* 絵文字のサイズ調整 */
  letter-spacing: 0.1em; /* 絵文字間のスペース */
}

.pattern {
  background-color: #f6f7f8;
  padding: 8px 12px;
  border-radius: 6px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}