/* 全体 */
body {
  font-family: "メイリオ", "Hiragino Kaku Gothic ProN", Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #fafafa;
  color: #333;
  line-height: 1.8;
}

#wrapper {
  width: 100%;
  max-width: 720px;
  margin: 40px auto;
  background-color: #fff;
  padding: 40px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  border-radius: 6px;
}

/* 注意書き部分 */
.notice-box {
  width: 100%;
  padding: 15px;
  background-color: #ffe6e6;
  font-size: 14px;
  font-weight: bold;
  color: #a00;
  border: 1px solid #ffcccc;
  border-radius: 6px;
  text-align: center;
  margin-bottom: 20px;
  box-sizing: border-box;
}

/* 見出し */
.page-title {
  text-align: center;
  margin-bottom: 20px;
}
.page-title h2 {
  padding: 0.5em;
  color: #008877;
  background: #f8f8f8;
  border-left: solid 10px #008877;
  font-size: 24px;
  text-align: center;
  margin: 0 auto;
}

.sub-heading {
  background-color: #f8f8f8;
  border-left: 10px solid #008877;
  border-bottom: 1px dotted #008877;
  padding: 0 10px;
  font-size: 20px;
  font-weight: bold;
  color: #333;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  height: 50px;
}

/* テキストボックス */
.txt-box {
  background-color: #ffffff;
  border-radius: 6px;
  padding: 15px;
  font-size: 16px;
  color: #333;
  line-height: 1.6;
  border: 1px solid #ddd;
  margin-bottom: 20px;
}

/* ボタン */
.button-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

button {
  border-radius: 6px;
  margin: 0 auto 20px auto;
  padding-top: 10px;
  padding-bottom: 10px;
  display: inline-block;
  letter-spacing: 0.05em;
  background: #008876;
  color: #fff;
  font-weight: bold;
  font-size: 18px;
}
button:hover {
  background-color: #008876;
  transform: translateY(-5px);
}
button:disabled {
  background-color: #6c757d;
  cursor: not-allowed;
}

/* エントリーボタン用 */
.entry-button {
  border-radius: 6px;
  margin: 0 auto 20px auto;
  padding-top: 10px;
  padding-bottom: 10px;
  display: inline-block;
  letter-spacing: 0.05em;
  background: #008876;
  color: #fff;
  font-weight: bold;
  font-size: 18px;
}
.entry-button:hover {
    background-color: #008876;
    transform: translateY(-5px);
}

@media screen and (max-width: 480px) {
  #wrapper {
    margin:20px auto;
    padding: 16px 20px; 
  }
  .page-title h2 {
    font-size: 20px;
  }
  .sub-heading {
    font-size: 14px;
    padding: 0 5px;
    height: 40px;
  }
  .txt-box {
    font-size: 14px;
  }
  .button {
    margin: 0 auto 8px auto;
    padding-top: 8px;
    padding-bottom: 8px;
    width: 160px;
    font-size: 14px;
}
}