/* ========================================
   WMS工作台 - 虚拟数字键盘组件样式
   悬浮显示，适合触屏使用
   ======================================== */

/* 键盘容器 */
.vkb-keyboard {
    position: fixed;
    width: 320px;
    background-color: #fff;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
    overflow: visible;
    border: 1px solid #e0e0e0;
    z-index: 10001;
    animation: vkbFadeIn 0.15s ease;
    padding: 16px;
}

@keyframes vkbFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 箭头 */
.vkb-arrow {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 12px solid transparent;
    border-right: 12px solid transparent;
}

/* 显示在下方时箭头在上方 */
.vkb-keyboard-below .vkb-arrow {
    top: -10px;
    border-bottom: 10px solid #fff;
}

.vkb-keyboard-below .vkb-arrow::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -12px;
    border-left: 12px solid transparent;
    border-right: 12px solid transparent;
    border-bottom: 10px solid #e0e0e0;
}

/* 显示在上方时箭头在下方 */
.vkb-keyboard-above .vkb-arrow {
    bottom: -10px;
    border-top: 10px solid #fff;
}

.vkb-keyboard-above .vkb-arrow::before {
    content: '';
    position: absolute;
    bottom: -1px;
    left: -12px;
    border-left: 12px solid transparent;
    border-right: 12px solid transparent;
    border-top: 10px solid #e0e0e0;
}

/* 按键容器 */
.vkb-keys {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

/* 按键样式 - 触屏优化 */
.vkb-key {
    height: 64px;
    font-size: 28px;
    font-weight: 500;
    background-color: #f8f8f8;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    color: #333;
    cursor: pointer;
    transition: all 0.1s ease;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
}

.vkb-key:active {
    background-color: #e0e0e0;
    transform: scale(0.95);
}

/* 功能键 */
.vkb-key-action {
    background-color: #f0f0f0;
}

.vkb-key-action:active {
    background-color: #d8d8d8;
}

/* 确认键 */
.vkb-key-confirm {
    background-color: #667eea;
    border-color: #667eea;
    color: #fff;
    font-size: 18px;
    font-weight: 600;
}

.vkb-key-confirm:active {
    background-color: #5a6fd6;
    border-color: #5a6fd6;
}