/* 全体ラッパー */
.aes-tool-wrapper {
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  background: #f4f7f9;
  padding: 25px;
  border-radius: 18px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
  color: #2f3e46;
}

/* セクション */
.aes-section {
  background: #ffffff;
  border-radius: 16px;
  padding: 25px;
  margin-bottom: 25px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.04);
}

/* セクションタイトル風（hタグ使わない） */
.aes-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 18px;
  color: #244b61;
}

/* 入力 */
.aes-section input[type="file"],
.aes-section input[type="password"] {
  width: 100%;
  margin-bottom: 18px;
  font-size: 17px;
  padding: 14px;
  border-radius: 12px;
  border: 1px solid #d0d7de;
  box-sizing: border-box;
}

/* ボタン共通 */
.aes-btn {
  width: 100%;
  padding: 18px;
  font-size: 20px;
  border-radius: 14px;
  border: none;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

/* 暗号化 */
#aes-encrypt {
  background: linear-gradient(145deg, #2f5d75, #244b61);
  color: #ffffff;
}

/* 復号 */
#aes-decrypt {
  background: linear-gradient(145deg, #5c7c8a, #3f5f6b);
  color: #ffffff;
}

.aes-btn:active {
  transform: scale(0.98);
}

.aes-note {
  font-size: 14px;
  color: #6b7c86;
  margin-top: 10px;
}