/**
 * 单词量测评功能样�?- 支持暗色和浅色主�?
 */

/* 使用系统主题变量 */
:root {
  --vocab-primary: var(--primary-color, #0066ff);
  --vocab-secondary: var(--secondary-color, #9d4edd);
  --vocab-accent: var(--accent-color, #ff00c8);
  --vocab-success: var(--success-color, #00ff9d);
  --vocab-warning: var(--warning-color, #ffcc00);
  --vocab-error: var(--error-color, #ff3860);
  --vocab-bg: var(--card-bg, rgba(20, 20, 40, 0.8));
  --vocab-text: var(--text-primary, #ffffff);
  --vocab-text-secondary: var(--text-secondary, #ccccff);
  --vocab-border: var(--border-color, rgba(0, 243, 255, 0.3));
  --vocab-glow: var(--glow-effect, 0 0 10px rgba(0, 243, 255, 0.5));
}

/* 浅色主题覆盖 */
[data-theme="light"] {
  --vocab-primary: var(--primary-color, #0066ff);
  --vocab-secondary: var(--secondary-color, #00d4ff);
  --vocab-accent: var(--accent-color, #ff3e7c);
  --vocab-success: var(--success-color, #00c896);
  --vocab-warning: var(--warning-color, #ff9f43);
  --vocab-error: var(--error-color, #ff4757);
  --vocab-bg: var(--card-bg, rgba(255, 255, 255, 0.98));
  --vocab-text: var(--text-primary, #1a365d);
  --vocab-text-secondary: var(--text-secondary, #2d3748);
  --vocab-border: var(--border-color, rgba(0, 102, 255, 0.15));
  --vocab-glow: var(--glow-effect, 0 0 20px rgba(0, 102, 255, 0.25));
}

/* 测评容器 */
.assessment-container {
    max-width: auto;
    margin: 0 auto;
    padding: 25px;
    background: var(--vocab-bg);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid var(--vocab-border);
}

/* 测评头部 */
.assessment-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--vocab-border);
}

.assessment-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--vocab-primary);
    margin-bottom: 12px;
    text-shadow: var(--vocab-glow);
}

.assessment-header p {
    color: var(--vocab-text-secondary);
    font-size: 16px;
    line-height: 1.6;
}

/* 测评进度�?*/
.assessment-progress {
    margin: 30px 0;
}

.progress {
    height: 12px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    overflow: hidden;
    border: 1px solid var(--vocab-border);
}

.progress-bar {
    background: linear-gradient(90deg, var(--vocab-primary), var(--vocab-secondary));
    height: 100%;
    transition: width 0.3s ease;
    box-shadow: var(--vocab-glow);
}

.progress-text {
    text-align: right;
    font-size: 14px;
    color: var(--vocab-text-secondary);
    margin-top: 8px;
    font-weight: 500;
}

/* 测评学段选择 */
.assessment-stage-selection {
    margin: 30px 0;
    padding: 25px;
    background: linear-gradient(145deg, var(--vocab-bg), rgba(255, 255, 255, 0.05));
    border-radius: 16px;
    border: 1px solid var(--vocab-border);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.assessment-stage-selection h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--vocab-primary);
    margin-bottom: 20px;
    text-align: center;
    text-shadow: var(--vocab-glow);
}

.stage-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.stage-option {
    display: flex;
    align-items: center;
    padding: 18px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--vocab-border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stage-option::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.stage-option:hover {
    border-color: var(--vocab-primary);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.stage-option:hover::before {
    left: 100%;
}

.stage-option input[type="radio"] {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--vocab-border);
    border-radius: 50%;
    margin-right: 15px;
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease;
}

.stage-option input[type="radio"]:checked {
    border-color: var(--vocab-primary);
    background: var(--vocab-primary);
    box-shadow: 0 0 0 4px rgba(0, 243, 255, 0.2);
}

.stage-option input[type="radio"]:checked::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
}

.option-label {
    font-size: 16px;
    font-weight: 500;
    color: var(--vocab-text);
    transition: color 0.3s ease;
}

.stage-option:hover .option-label {
    color: var(--vocab-primary);
}

.stage-option input[type="radio"]:checked + .option-label {
    color: var(--vocab-primary);
    font-weight: 600;
}

/* 测评介绍 */
.assessment-intro {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.intro-item {
    padding: 25px;
    background: linear-gradient(145deg, var(--vocab-bg), rgba(255, 255, 255, 0.05));
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--vocab-border);
    position: relative;
    overflow: hidden;
    width: 100%;
    box-sizing: border-box;
}

.intro-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--vocab-primary), var(--vocab-secondary));
}

.intro-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.intro-icon {
    font-size: 42px;
    color: var(--vocab-primary);
    margin-bottom: 20px;
    text-shadow: var(--vocab-glow);
}

.intro-text h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--vocab-text);
    margin-bottom: 12px;
}

.intro-text p {
    color: var(--vocab-text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

/* 按钮样式 */
.assessment-start {
    text-align: center;
    margin-top: 30px;
    margin-bottom: 40px; /* 与下方卡片之间的间距 */
}

.btn-primary {
    background: linear-gradient(135deg, var(--vocab-primary), var(--vocab-secondary));
    color: white;
    border: none;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    background: linear-gradient(135deg, var(--vocab-secondary), var(--vocab-primary));
}

.btn-secondary {
    background: transparent;
    color: var(--vocab-text);
    border: 2px solid var(--vocab-border);
/*    padding: 14px 28px; */
    font-size: 16px;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-right: 12px;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--vocab-primary);
    transform: translateY(-2px);
}

/* 单词测试容器 */
.word-test-container {
    margin: 30px 0;
    padding: 30px;
    background: linear-gradient(145deg, var(--vocab-bg), rgba(255, 255, 255, 0.05));
    border-radius: 16px;
    border: 1px solid var(--vocab-border);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.word-display {
    text-align: center;
    margin-bottom: 40px;
}

.word-display h3 {
    font-size: 36px;
    font-weight: 700;
    color: var(--vocab-text);
    margin-bottom: 20px;
    text-shadow: var(--vocab-glow);
}

.word-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.word-option {
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--vocab-border);
    border-radius: 12px;
    text-align: center;
    font-size: 18px;
    font-weight: 500;
    color: var(--vocab-text);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.word-option::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.word-option:hover {
    border-color: var(--vocab-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.word-option:hover::before {
    left: 100%;
}

.word-option.correct {
    background: linear-gradient(145deg, rgba(0, 255, 157, 0.2), rgba(0, 255, 157, 0.1));
    border-color: var(--vocab-success);
    color: var(--vocab-success);
    box-shadow: 0 0 20px rgba(0, 255, 157, 0.3);
}

.word-option.wrong {
    background: linear-gradient(145deg, rgba(255, 56, 96, 0.2), rgba(255, 56, 96, 0.1));
    border-color: var(--vocab-error);
    color: var(--vocab-error);
    box-shadow: 0 0 20px rgba(255, 56, 96, 0.3);
}

.word-option.disabled {
    pointer-events: none;
    opacity: 0.6;
}

/* 测评结果 */
.assessment-result {
    margin-top: 30px;
}

.result-summary {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
    gap: 20px;
}

.summary-item {
    display: flex;
    align-items: center;
    padding: 20px;
    background: linear-gradient(145deg, var(--vocab-bg), rgba(255, 255, 255, 0.05));
    border-radius: 12px;
    border: 1px solid var(--vocab-border);
    min-width: 200px;
}

.summary-icon {
    font-size: 28px;
    color: var(--vocab-primary);
    margin-right: 15px;
    text-shadow: var(--vocab-glow);
}

.summary-text h4 {
    font-size: 16px;
    color: var(--vocab-text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
}

.summary-text p {
    font-size: 20px;
    color: var(--vocab-text);
    font-weight: 700;
}

.result-details {
    margin-bottom: 40px;
}

.result-details h3 {
    font-size: 24px;
    color: var(--vocab-primary);
    margin-bottom: 25px;
    text-align: center;
    font-weight: 700;
    text-shadow: var(--vocab-glow);
}

.stage-results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.stage-result {
    padding: 25px;
    background: linear-gradient(145deg, var(--vocab-bg), rgba(255, 255, 255, 0.05));
    border-radius: 12px;
    border: 1px solid var(--vocab-border);
    text-align: center;
}

.stage-name {
    font-size: 20px;
    color: var(--vocab-text);
    margin-bottom: 20px;
    font-weight: 600;
}

.stage-chart {
    margin-bottom: 20px;
}

.stage-data {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
}

.stage-percentage {
    font-size: 28px;
    font-weight: 700;
    color: var(--vocab-success);
    text-shadow: var(--vocab-glow);
}

.stage-count {
    font-size: 16px;
    color: var(--vocab-text-secondary);
    font-weight: 500;
}

.result-analysis {
    margin-bottom: 40px;
    padding: 30px;
    background: linear-gradient(145deg, var(--vocab-bg), rgba(255, 255, 255, 0.05));
    border-radius: 16px;
    border: 1px solid var(--vocab-border);
}

.result-analysis h3 {
    font-size: 24px;
    color: var(--vocab-primary);
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: var(--vocab-glow);
}

.analysis-content {
    color: var(--vocab-text);
    line-height: 1.8;
    font-size: 16px;
}

.analysis-content p {
    margin-bottom: 15px;
}

.analysis-content strong {
    color: var(--vocab-accent);
    font-weight: 600;
}

.result-actions {
    display: flex;
    justify-content: center;
    margin-top: 40px;
    gap: 15px;
}

/* 消息提示 */
.message {
    position: fixed;
    top: 25px;
    right: 25px;
    padding: 20px 25px;
    border-radius: 8px;
    background: var(--vocab-bg);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    opacity: 0;
    transform: translateY(-30px);
    transition: all 0.3s ease;
    border: 1px solid var(--vocab-border);
    backdrop-filter: blur(10px);
}

.message.show {
    opacity: 1;
    transform: translateY(0);
}

.message-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.message-content i {
    font-size: 20px;
}

.message-success {
    border-left: 4px solid var(--vocab-success);
}

.message-success i {
    color: var(--vocab-success);
}

.message-error {
    border-left: 4px solid var(--vocab-error);
}

.message-error i {
    color: var(--vocab-error);
}

.message-warning {
    border-left: 4px solid var(--vocab-warning);
}

.message-warning i {
    color: var(--vocab-warning);
}

.message-info {
    border-left: 4px solid var(--vocab-primary);
}

.message-info i {
    color: var(--vocab-primary);
}

/* 响应式调�?*/
@media (max-width: 768px) {
    .assessment-container {
        padding: 20px;
        margin: 10px;
        border-radius: 12px;
    }
    
    .word-options {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .stage-results {
        grid-template-columns: 1fr;
    }
    
    .assessment-intro {
        grid-template-columns: 1fr;
    }
    
    .result-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    .btn-secondary {
        margin-right: 0;
        margin-bottom: 12px;
    }
    
    .result-summary {
        flex-direction: column;
        align-items: center;
    }
    
    .summary-item {
        min-width: unset;
        width: 100%;
        max-width: 300px;
    }
}

/* 主题切换动画 */
.assessment-container,
.intro-item,
.word-test-container,
.summary-item,
.stage-result,
.result-analysis,
.message {
    transition: all 0.5s ease;
}

/* 增强的科技感效�?*/
.assessment-header h2,
.word-display h3,
.result-details h3,
.result-analysis h3 {
    position: relative;
}

.assessment-header h2::after,
.word-display h3::after,
.result-details h3::after,
.result-analysis h3::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--vocab-primary), var(--vocab-secondary));
    border-radius: 2px;
}

/* 进度条动�?*/
.progress-bar {
    position: relative;
    overflow: hidden;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* 按钮悬停效果 */
.btn-primary,
.btn-secondary {
    position: relative;
    overflow: hidden;
}

.btn-primary::before,
.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before,
.btn-secondary:hover::before {
    left: 100%;
}

/* 单词选项选中效果 */
.word-option.selected {
    border-color: var(--vocab-accent);
    box-shadow: 0 0 25px var(--vocab-glow);
    transform: scale(1.02);
}

/* 结果统计数字动画 */
.stage-percentage,
.summary-text p {
    animation: countUp 1s ease-out;
}

@keyframes countUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 暗色模式优化增强 */
[data-theme="dark"] .assessment-container,
[data-theme="dark"] .intro-item,
[data-theme="dark"] .word-test-container,
[data-theme="dark"] .summary-item,
[data-theme="dark"] .stage-result,
[data-theme="dark"] .result-analysis {
    background: rgba(20, 20, 40, 0.95);
    border-color: rgba(0, 243, 255, 0.4);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .word-option {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 243, 255, 0.3);
}

[data-theme="dark"] .word-option:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--vocab-primary);
}

[data-theme="dark"] .btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(0, 243, 255, 0.3);
}

[data-theme="dark"] .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--vocab-primary);
}

/* 浅色模式优化增强 */
[data-theme="light"] .assessment-container,
[data-theme="light"] .intro-item,
[data-theme="light"] .word-test-container,
[data-theme="light"] .summary-item,
[data-theme="light"] .stage-result,
[data-theme="light"] .result-analysis {
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(0, 102, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 102, 255, 0.15);
}

[data-theme="light"] .word-option {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(0, 102, 255, 0.15);
    color: #1a365d;
}

[data-theme="light"] .word-option:hover {
    background: rgba(255, 255, 255, 1);
    border-color: var(--vocab-primary);
    box-shadow: 0 8px 20px rgba(0, 102, 255, 0.2);
}

[data-theme="light"] .btn-secondary {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(0, 102, 255, 0.2);
    color: #1a365d;
}

[data-theme="light"] .btn-secondary:hover {
    background: rgba(255, 255, 255, 1);
    border-color: var(--vocab-primary);
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.2);
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .assessment-container,
    .intro-item,
    .word-test-container,
    .summary-item,
    .stage-result,
    .result-analysis {
        border-width: 2px;
    }
    
    .word-option {
        border-width: 2px;
    }
    
    .btn-primary,
    .btn-secondary {
        border-width: 2px;
    }
}

/* 减少动画支持 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}