/* ============ 通用样式 ============ */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background-color: #f5f5f5;
    padding: 20px;
}

.container {
    max-width: 600px;
    margin: 0 auto;
}

/* 页面显示控制 */
#mainPage { display: block; }
#homePage { display: none; }

/* ============ 按钮样式 ============ */
.button-group {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 40px;
}

.action-btn {
    padding: 18px 24px;
    border: none;
    border-radius: 12px;
    font-size: 18px;
    color: white;
    cursor: pointer;
    transition: transform 0.2s, opacity 0.2s;
}

.action-btn:active {
    transform: scale(0.98);
    opacity: 0.9;
}

.register-btn   { background-color: #ddd; }
.start-btn      { background-color: #4CAF50; }
.end-btn        { background-color: #f44336; }
.parts-btn      { background-color: #2196F3; }
.maintenance-btn{ background-color: #FF9800; }

.back-btn {
    position: absolute;
    top: 20px;
    left: 20px;
    padding: 10px 20px;
    background-color: #607D8B;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
}


/* ============ 扫描界面样式 ============ */
.scan-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.scan-box {
    width: 80%;
    max-width: 600px;
    position: relative;
    border: none !important;
}

#qrScanner {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

.scan-overlay {
    display: none;
    /* 备用样式（如需启用）：
    position: absolute;
    border: 2px solid #fff;
    width: 80%;
    height: 80%;
    top: 10%;
    left: 10%;
    */
}

.close-btn {
    display: none !important;
}

/* ============ 表单样式 ============ */
.form-group {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.form-group label {
    width: 115px;
    flex-shrink: 0;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    flex-grow: 1;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.form-group textarea {
    min-height: 36px;
    resize: vertical;
}

input[readonly] {
    background-color: #f5f5f5;
    cursor: not-allowed;
}

.form-buttons {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

.submit-btn, .cancel-btn {
    flex: 1;
    padding: 12px;
    border-radius: 6px;
    cursor: pointer;
    border: none;
    color: white;
}

.submit-btn { background-color: #4CAF50; }
.cancel-btn { background-color: #f44336; }


/* ============ 加载页面样式 ============ */
.loading-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: rgba(255, 255, 255, 0.95);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
}

.loading-content {
    text-align: center;
    padding: 40px;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #4CAF50;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-content p {
    font-size: 16px;
    color: #666;
}

/* ============ 移动端适配 ============ */
@media (max-width: 768px) {
    .button-group {
        flex-direction: column;
    }
    
    .action-btn {
        padding: 15px;
        margin: 10px 0;
    }
    
    .scan-box {
        width: 95%;
        max-width: none;
    }
    
    .form-group input,
    .form-group textarea {
        font-size: 16px; /* 移动端输入优化 */
    }
}

/* 加载页面样式 */
.loading-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: rgba(255, 255, 255, 0.95);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
}

.loading-content {
    text-align: center;
    padding: 40px;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #4CAF50;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-content p {
    font-size: 16px;
    color: #666;
}