/* pages/calculator/calculator.wxss */
page {
  height: 100%;
  background-color: #000000;
  display: flex;
  flex-direction: column;
}

.calculator-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding-bottom: constant(safe-area-inset-bottom);
  padding-bottom: env(safe-area-inset-bottom);
}

/* 显示区域 */
.display-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: flex-end;
  padding: 40rpx;
  background-color: #000;
  position: relative;
}

.mode-indicator {
    position: absolute;
    top: 40rpx;
    left: 40rpx;
}

.mode-indicator text {
    color: #444;
    font-size: 24rpx;
    border: 1px solid #444;
    padding: 10rpx 20rpx;
    border-radius: 30rpx;
}

.mode-indicator text.active {
    color: #ff9f0a;
    border-color: #ff9f0a;
    background: rgba(255, 159, 10, 0.1);
}


.history-text {
  font-size: 36rpx;
  color: #666;
  min-height: 50rpx;
  margin-bottom: 20rpx;
  font-family: monospace;
  text-align: right;
  width: 100%;
}

.current-value {
  font-size: 160rpx;
  color: #fff;
  line-height: 1;
  font-weight: 200;
  word-break: break-all;
  text-align: right;
  width: 100%;
}

.current-value.shrink {
  font-size: 100rpx;
}
.current-value.shrink-more {
  font-size: 70rpx;
}

/* 键盘区域 */
.keypad-area {
  background-color: #000;
  padding: 0 30rpx 30rpx 30rpx;
  display: flex;
  flex-direction: column;
  gap: 30rpx;
}

/* 科学模式适配 */
.keypad-area.scientific-pad {
    gap: 20rpx;
    padding-bottom: 20rpx;
}

/* 统一圆形按钮 */
.keypad-area.scientific-pad .btn {
    width: 130rpx;
    height: 130rpx;
    font-size: 50rpx;
    border-radius: 50%; /* 保持圆形 */
}

.keypad-area.scientific-pad .zero {
    width: 280rpx; /* 适配新的宽度 */
    border-radius: 65rpx; /* 圆角为高度一半 */
}

/* 科学功能键行 */
.keypad-area.scientific-pad .sci-btn {
    width: 120rpx; /* 稍微大一点，填满宽度 */
    height: 120rpx; /* 正圆 */
    font-size: 36rpx;
    background: #222;
    color: #fff;
    border-radius: 50%;
}

.small-row {
    justify-content: space-around; /* 均匀分布 */
    gap: 10rpx;
}

.row {
  display: flex;
  justify-content: space-between;
  gap: 30rpx;
}
.keypad-area.scientific-pad .row {
    gap: 20rpx;
}


.btn {
  width: 150rpx;
  height: 150rpx;
  border-radius: 75rpx; /* 圆形按钮 */
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 60rpx;
  font-weight: 500;
}

/* 数字键 */
.digit {
  background-color: #333333;
  color: #fff;
}

/* 功能键 (AC, Del, +/-) */
.func {
  background-color: #a5a5a5;
  color: #000;
  font-size: 50rpx;
  font-weight: 600;
}

/* 运算符 */
.operator {
  background-color: #ff9f0a;
  color: #fff;
  font-size: 70rpx;
  padding-bottom: 10rpx; 
  padding: 0; 
}

/* 0键特殊处理 */
.zero {
  width: 330rpx;
  border-radius: 75rpx;
  justify-content: flex-start;
  padding-left: 60rpx;
  box-sizing: border-box;
}

/* 点击反馈 */
.btn-hover {
  opacity: 0.7;
}

/* 平板适配或小屏适配 */
@media (max-width: 360px) {
  .btn {
    width: 140rpx;
    height: 140rpx;
    font-size: 50rpx;
  }
  .zero {
    width: 310rpx;
  }
}