/* /public/style.css */

/* --- 基本和布局 --- */
:root {
    --color-primary: #0078d4;
    --color-danger: #d93025;
    --color-secondary: #505050;
    --color-text: #333;
    --color-bg: #f9f9f9;
    --color-border: #ddd;
    
    --color-good: #f0f9f0; /* 浅绿 (用于正确发音) */
    --color-mispronunciation: #fef0f0; /* 浅红 (错读) */
    --color-omission: #f5f5f5; /* 灰色 (遗漏) */
    --color-insertion: #f0f5fe; /* 浅蓝 (插入) */
    
    --border-radius: 8px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--color-bg);
    color: var(--color-text);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
}

.app-container {
    width: 100%;
    max-width: 600px;
    min-height: 100vh; /* 确保在移动端至少占满全屏 */
    background-color: #ffffff;
    border-radius: 0;
    box-shadow: none;
    padding: 20px;
    box-sizing: border-box; /* 关键的布局属性 */
    display: flex;
    flex-direction: column;
}

.app-section {
    width: 100%;
    margin-bottom: 20px;
}

/* 桌面端样式优化 */
@media (min-width: 640px) {
    body {
        align-items: center; /* 居中 */
        padding: 20px 0;
    }
    .app-container {
        min-height: auto; /* 桌面端不需要占满全屏 */
        border-radius: var(--border-radius);
        box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    }
}


/* --- 控件样式 --- */
input[type="password"] {
    width: 100%;
    padding: 12px;
    font-size: 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-sizing: border-box;
    margin-bottom: 15px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 20px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.2s, opacity 0.2s;
    width: 100%; /* 移动端按钮占满全宽 */
    box-sizing: border-box;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
}
.btn-primary:hover:not(:disabled) {
    background-color: #005a9e;
}

.btn-danger {
    background-color: var(--color-danger);
    color: white;
}
.btn-danger:hover:not(:disabled) {
    background-color: #b0261d;
}

.btn-secondary {
    background-color: #f0f0f0;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}
.btn-secondary:hover:not(:disabled) {
    background-color: #e0e0e0;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 麦克风大按钮 */
.btn-mic {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    padding: 0;
    margin: 10px auto; /* 居中 */
}
.btn-mic svg {
    width: 36px;
    height: 36px;
}

/* --- 状态 1: 安全密钥 --- */
#security-gate {
    text-align: center;
}
#security-gate h2 {
    margin-top: 0;
}
.status-message {
    font-size: 14px;
    min-height: 1.2em; /* 占位，防止跳动 */
}
.error {
    color: var(--color-danger);
}
.info {
    color: var(--color-secondary);
}

/* --- 状态 2: 主应用 --- */

/* 2a. 文本选择 (Tabs) */
.tabs {
    display: flex;
    flex-wrap: wrap; /* 移动端自动换行 */
    gap: 8px;
    margin-bottom: 20px;
}
.tab {
    padding: 8px 14px;
    background-color: #f0f0f0;
    border: 1px solid var(--color-border);
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s, border-color 0.2s;
}
.tab:hover {
    background-color: #e0e0e0;
}
.tab.active {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    font-weight: 600;
}

/* 2b. 参考文本 */
#reference-text-display {
    font-size: 1.3em;
    line-height: 1.6;
    color: #000;
    background-color: #fdfdfd;
    padding: 15px;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    min-height: 100px;
}

/* 2c. 录音控制 */
#recording-controls {
    text-align: center;
    margin-top: 20px;
}
.timer {
    font-size: 1.5em;
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: 10px;
}
#waveform-canvas {
    width: 100%;
    height: 80px;
    display: none; /* 默认隐藏 */
    background-color: #fafafa;
    border-radius: var(--border-radius);
}
#recording-status.recording {
    color: var(--color-danger);
    font-weight: 600;
    animation: pulse 1.5s infinite;
}
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}


/* --- 状态 3: 评估结果 --- */
#results-container {
    border-top: 2px solid var(--color-border);
    padding-top: 20px;
    margin-top: 20px;
}

/* 评分圈 */
.score-dial-container {
    text-align: center;
    margin-bottom: 25px;
}
.score-dial {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 48px;
    font-weight: bold;
    /* 使用渐变背景来模拟进度环 */
    background-image: conic-gradient(
        var(--color-primary) 0%, /* 默认0% */
        #f0f0f0 0% /* 剩余部分 */
    );
}
.score-dial span {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 130px; /* 内部小圆 */
    height: 130px;
    background-color: white;
    border-radius: 50%;
}
.score-label {
    margin-top: 10px;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-secondary);
}

/* 详细分数 */
.score-details {
    display: grid;
    /* 移动端1列，桌面端2列 */
    grid-template-columns: 1fr;
    gap: 10px;
    margin-bottom: 25px;
}
/* 桌面端适配 */
@media (min-width: 640px) {
    .score-details {
        grid-template-columns: 1fr 1fr;
    }
}
.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 12px;
    background: #fdfdfd;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 16px;
}
.detail-item span {
    color: var(--color-secondary);
}

/* 高亮文本 */
.highlighted-text {
    font-size: 1.3em;
    line-height: 2.2; /* 增大行高以容纳角标 */
    background-color: #fdfdfd;
    padding: 15px;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.highlighted-text .word {
    padding: 2px 4px;
    border-radius: 4px;
    margin: 0 1px;
}

/* 评估结果样式 */
.word-good {
    background-color: var(--color-good);
    color: #2a572a;
}
.word-mispronunciation {
    background-color: var(--color-mispronunciation);
    color: var(--color-danger);
    font-weight: 600;
}
.word-omission {
    background-color: var(--color-omission);
    color: var(--color-secondary);
    text-decoration: line-through;
}
.word-insertion {
    background-color: var(--color-insertion);
    color: #3f51b5;
    font-weight: 600;
    border-bottom: 2px dotted #3f51b5;
}
/* --- (新) 状态 3: 评估结果 (优化版) --- */
#results-container h2 {
    text-align: center;
    margin-bottom: 25px;
}

/* (新) 总体得分 */
.overall-score-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 30px;
    padding: 20px;
    border-radius: var(--border-radius);
    background-color: #f0f0f0; /* 默认背景 */
}

.overall-score-container .score-number {
    font-size: 4.5em; /* 更大 */
    font-weight: bold;
    line-height: 1;
    color: var(--color-primary); /* 默认颜色 */
}

.overall-score-container .score-label {
    font-size: 1.1em;
    font-weight: 600;
    color: var(--color-secondary);
    margin-top: 5px;
}

/* (新) 根据分数改变总体得分背景和颜色 */
.overall-score-container.score-high { /* 85+ */
    background-color: #e6f4ea; 
    border: 1px solid #c8e6c9;
}
.overall-score-container.score-high .score-number {
    color: #2e7d32;
}

.overall-score-container.score-medium { /* 60-84 */
    background-color: #fff8e1;
    border: 1px solid #ffecb3;
}
.overall-score-container.score-medium .score-number {
    color: #ffa000;
}

.overall-score-container.score-low { /* < 60 */
    background-color: #fce8e6;
    border: 1px solid #f9bdbb;
}
.overall-score-container.score-low .score-number {
    color: var(--color-danger);
}


/* (新) 详细分数列表 */
.score-details-list {
    display: grid;
    grid-template-columns: 1fr; /* 移动端默认1列 */
    gap: 15px; /* 增大间距 */
    margin-bottom: 30px;
}

/* 桌面端适配 (如果需要2列) */
@media (min-width: 640px) {
    .score-details-list {
         grid-template-columns: 1fr 1fr; /* 桌面端2列 */
    }
}

.detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center; /* 垂直居中 */
    padding: 15px; /* 增大内边距 */
    background: #fdfdfd;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 1em; /* 调整基础字体大小 */
}

.detail-label {
    color: var(--color-secondary);
    font-weight: 600;
    flex-shrink: 0; /* 防止标签被压缩 */
    margin-right: 15px; /* 标签和值之间的间距 */
}

.detail-value {
    display: flex;
    flex-direction: column; /* 分数和条形图垂直排列 */
    align-items: flex-end; /* 右对齐 */
    flex-grow: 1; /* 占据剩余空间 */
}

.detail-score {
    font-weight: bold;
    margin-bottom: 5px; /* 分数和条形图间距 */
    font-size: 1.1em;
}

.score-bar {
    width: 100px; /* 条形图固定宽度 */
    height: 8px;
    background-color: #e0e0e0;
    border-radius: 4px;
    overflow: hidden; /* 隐藏超出部分 */
}

.score-bar-fill {
    height: 100%;
    background-color: var(--color-primary); /* 默认蓝色 */
    border-radius: 4px;
    transition: width 0.5s ease-out; /* 平滑过渡效果 */
    width: 0%; /* JS会设置这个 */
}

/* (新) 根据分数给条形图上色 */
.score-bar-fill.score-high { /* 85+ */
    background-color: #4caf50; /* 绿色 */
}
.score-bar-fill.score-medium { /* 60-84 */
    background-color: #ffc107; /* 黄色 */
}
.score-bar-fill.score-low { /* < 60 */
    background-color: #f44336; /* 红色 */
}

/* (新) 调整高亮文本和重置按钮的间距 */
#results-container h3 {
    margin-top: 30px; /* 增加上方间距 */
    text-align: center;
}
.highlighted-text {
    margin-bottom: 30px; /* 增加下方间距 */
}
#btn-reset {
    margin-top: 10px; /* 确保按钮和下方内容有间距 */
}