* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #f5f5f5;
  font-family: system-ui, sans-serif;
  color: #333;
}

.container {
  max-width: 600px;
  margin: 60px auto;
  padding: 24px;
  background: #fff;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

h1 {
  margin-bottom: 20px;
}

.result {
  min-height: 120px;
  padding: 16px;
  margin-bottom: 20px;
  border: 2px dashed #ccc;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  white-space: pre-line;
}

/* ボタンを横並びにするためのラッパー */
.buttons {
  display: flex;
  gap: 10px;
  justify-content: center;
}

button {
  padding: 12px 28px;
  font-size: 16px;
  border: none;
  border-radius: 999px;
  background: #ff8fc7;
  color: white;
  cursor: pointer;
}

button:hover {
  opacity: 0.85;
}

/* コピー用ボタンの色だけ変える */
#copyBtn {
  background: #7cc8ff;
}

.version {
  position: fixed;
  right: 12px;
  bottom: 8px;
  font-size: 12px;
  color: #999;
  user-select: none;
}