/* 全局重置和基本样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', 'Microsoft YaHei', sans-serif;
}

:root {
    --primary-color: #4a90e2;
    --primary-dark: #3a7bc8;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --untested-key: #e0e0e0;
    --tested-key: #9eebcf;
    --key-border: #bbb;
    --key-shadow: rgba(0, 0, 0, 0.2);
}

body {
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
}

/* 头部样式 */
.header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    padding: 1rem 2rem;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.header h1 {
    color: var(--primary-color);
    font-size: 1.8rem;
}

.language-selector-container select {
    padding: 0.5rem;
    border: 1px solid var(--key-border);
    border-radius: 4px;
    background-color: white;
    font-size: 0.9rem;
}

/* 主要内容区域 */
.main-content {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* 测试状态区域 */
.test-status {
    background-color: white;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.status-indicator {
    display: flex;
    align-items: center;
}

.dot {
    width: 12px;
    height: 12px;
    background-color: var(--secondary-color);
    border-radius: 50%;
    margin-right: 8px;
}

.test-active .dot {
    background-color: var(--success-color);
}

.status-text {
    font-weight: 600;
    color: var(--dark-color);
}

.progress-info {
    font-size: 0.95rem;
    color: var(--secondary-color);
}

.action-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: background-color 0.2s;
}

.action-button:hover {
    background-color: var(--primary-dark);
}

.action-button.secondary {
    background-color: var(--secondary-color);
}

.action-button.secondary:hover {
    background-color: #5a6268;
}

.action-button.warning {
    background-color: var(--danger-color);
}

.action-button.warning:hover {
    background-color: #c82333;
}

/* 按键信息区域 */
.key-info {
    background-color: white;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

.info-box {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.info-item {
    min-width: 200px;
    flex: 1;
}

.info-label {
    color: var(--secondary-color);
    font-size: 0.9rem;
    display: block;
    margin-bottom: 0.3rem;
}

.info-value {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--dark-color);
}

/* 键盘布局 */
.keyboard-layout {
    background-color: white;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.keyboard-row {
    display: flex;
    gap: 0.4rem;
}

.key {
    min-width: 50px;
    height: 50px;
    background-color: var(--untested-key);
    border: 1px solid var(--key-border);
    border-radius: 5px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 0.85rem;
    user-select: none;
    cursor: pointer;
    box-shadow: 0 2px 4px var(--key-shadow);
    flex: 1;
    position: relative;
    transition: background-color 0.2s, transform 0.1s;
}

.key:active, .key.active {
    transform: translateY(2px);
    box-shadow: 0 1px 2px var(--key-shadow);
}

.key.tested {
    background-color: var(--tested-key);
}

.key.wider {
    flex: 1.5;
}

.key.widest {
    flex: 2.5;
}

.key.spacer {
    background-color: transparent;
    border: none;
    box-shadow: none;
    min-width: 10px;
    flex: 0.2;
}

.key.spacer.wide {
    flex: 1;
}

.key.accent {
    color: var(--primary-color);
}

.function-keys {
    margin-bottom: 1rem;
}

.space-bar {
    flex: 6;
    height: 50px;
}

.arrow-keys {
    margin-top: 0.5rem;
}

/* 测试结果区域 */
.test-results {
    background-color: white;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

.result-summary {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.result-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* 建议区域 */
.recommendations {
    background-color: white;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

.recommendations h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.recommendations ul {
    padding-left: 1.5rem;
}

.recommendations li {
    margin-bottom: 0.5rem;
}

/* 页脚 */
.footer {
    background-color: var(--dark-color);
    color: white;
    text-align: center;
    padding: 1.5rem;
    margin-top: 2rem;
}

.footer a {
    color: var(--light-color);
    text-decoration: none;
    margin: 0 0.5rem;
}

.footer a:hover {
    text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 900px) {
    .key {
        min-width: 40px;
        height: 40px;
        font-size: 0.75rem;
    }
    
    .test-status {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .action-button {
        margin-top: 0.5rem;
    }
}

@media (max-width: 600px) {
    .key {
        min-width: 30px;
        height: 30px;
        font-size: 0.7rem;
    }
    
    .header h1 {
        font-size: 1.5rem;
    }
    
    .result-actions {
        flex-direction: column;
    }
    
    .action-button {
        width: 100%;
    }
}