.tr_button{
  width: 90px; 
  height: 45px;
  font-size: 20px;
  cursor: pointer;
  border: 1px solid #ccc;
  background-color: #fff;
  border-radius: 4px;
  box-shadow: 0 2px 0 #ccc;
  transition: all .05s ease;
}
.tr_button:active{
  box-shadow: none;
  transform: translateY(2px);
  background-color: #e6e6e6;
}

.calc_text{
    width: 400px;
    height: 50px;
    font-size: 30px;
    text-align: right;
}

.calc_info{
    width: 80px;
    height: 50px;
    font-size: 30px;
    text-align: center;
}

.calc_memory{
    background-color: beige;
}

.calc_command{
    width: 400px;
    height: 50px;
    font-size: 30px;
    text-align: left;
}

body {
  font-family: 'Segoe UI', sans-serif;
  display: flex;
  justify-content: center;      /* 横中央 */
  align-items: flex-start;      /* ← 縦は上揃えにする */
  min-height: 100vh;            /* 全体の高さ確保（必要に応じて） */
  padding-top: 2rem;            /* 少し上に余白をつけると自然 */
  margin: 0;
  background-color: #f8f9fa;    /* 任意の背景色 */
}

.layout-wrapper {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 2rem;
  padding: 2rem;
}

.calculator-area {
  max-width: 500px;
  flex-shrink: 0;
}

.settings-area {
  width: 300px;
  background-color: #f9f9f9;
  padding: 1rem;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0,0,0,0.05);
  font-size: 14px;
}


.calc_Memory_exist{
    width: 400px;
    height: 50px;
    font-size: 30px;
}

.suggestion-box {
  background-color: #fff;
  border: 1px solid #ccc;
  max-height: 150px;
  overflow-y: auto;
  font-size: 14px;
  margin-top: 4px;
  padding: 4px;
  border-radius: 4px;
  position: absolute;
  z-index: 10;
}

.suggestion-box div {
  padding: 4px 8px;
  cursor: pointer;
}

.suggestion-box div:hover {
  background-color: #e0e0e0;
}

.suggestion-item {
  padding: 6px 10px;
  border-bottom: 1px solid #ddd;
  cursor: pointer;
}

.suggestion-item:hover {
  background-color: #f0f0f0;
}

.cmd-desc {
  font-size: 0.8em;
  color: #666;
}

.setting-title {
  font-weight: bold;
  margin-top: 1rem;
}

.setting-item {
  display: flex;
  align-items: center;
  margin-left: 1em;       /* ← ラベル行全体の字下げ */
  margin-bottom: 4px;
}

.setting-item input[type="checkbox"] {
  margin-right: 0.5em;
}

/* 回転アニメーション */
@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* 1回転（終了後は元の角度に戻る）*/
.effect-spin-once {
  animation: spin 3s linear;
}

/* 追加：540°まで回すkeyframes */
@keyframes spin-onehalf {
  from { transform: rotate(0deg); }
  to   { transform: rotate(540deg); }
}

/* 修正：iteration-countは不要 */
.effect-spin-onehalf {
  animation: spin-onehalf 4.5s linear forwards;
}


/* 無限回転（トグルでON/OFF）*/
.effect-spin-infinite {
  animation: spin 8s linear infinite;
}

/* 画面傾き（角度自体はJSでinline指定） */
.effect-askew {
  will-change: transform; /* パフォーマンス向上 */
}

/* 視覚効果を一括で外すためのヘルパー（必要なら） */
.effect-reset {
  animation: none !important;
  transform: none !important;
}

/* ユーザーの簡易アクセシビリティ配慮（強すぎる動きを抑制）*/
@media (prefers-reduced-motion: reduce) {
  .effect-spin-once,
  .effect-spin-onehalf,
  .effect-spin-infinite,
  .effect-askew {
    animation-duration: 2s !important;
  }
}