/* SEO分析大师 - 样式表 */

/* ===== 基础重置与变量 ===== */
:root {
    /* 背景色 - 浅蓝白主题 */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-hover: #f1f5f9;

    /* 文字色 - 深色系 */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;

    /* 主题色 - 专业蓝色 */
    --accent-primary: #2563eb;
    --accent-secondary: #3b82f6;
    --accent-gradient: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #60a5fa 100%);

    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;

    /* 边框和阴影 - 浅色主题适配 */
    --border-color: rgba(0, 0, 0, 0.08);
    --border-radius: 12px;
    --border-radius-lg: 20px;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 30px rgba(37, 99, 235, 0.2);

    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* 动态背景 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, #f0f9ff 0%, #f8fafc 100%);
    pointer-events: none;
    z-index: -1;
}

/* 语言切换按钮 */
.lang-switch {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 1000;
}

.lang-switch:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

/* ===== 容器 ===== */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== 头部 ===== */
.header {
    text-align: center;
    padding: 3rem 0;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.logo-icon {
    width: 48px;
    height: 48px;
    color: var(--accent-primary);
    filter: drop-shadow(0 0 12px rgba(37, 99, 235, 0.4));
}

.logo h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* ===== 主输入区 ===== */
.input-section {
    margin-bottom: 2rem;
}

.url-input-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

.input-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.5rem 0.5rem 0.5rem 1.5rem;
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.input-wrapper:focus-within {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.input-icon {
    width: 24px;
    height: 24px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.input-wrapper input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 1.1rem;
    padding: 0.75rem 0;
}

.input-wrapper input::placeholder {
    color: var(--text-muted);
}

.analyze-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent-gradient);
    border: none;
    border-radius: var(--border-radius);
    padding: 1rem 2rem;
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-normal);
}

.analyze-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.analyze-btn:active {
    transform: translateY(0);
}

.analyze-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-icon {
    font-size: 1.2rem;
    transition: transform var(--transition-fast);
}

.analyze-btn:hover .btn-icon {
    transform: translateX(4px);
}

.input-hint {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 1rem;
}

/* ===== 配置区 ===== */
.config-section {
    margin-bottom: 2rem;
}

.config-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.config-toggle:hover {
    background: var(--bg-hover);
}

.toggle-arrow {
    transition: transform var(--transition-normal);
}

.config-toggle.active .toggle-arrow {
    transform: rotate(180deg);
}

.config-panel {
    display: none;
    margin-top: 1rem;
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
}

.config-panel.show {
    display: block;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.config-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.config-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
}

.config-card h3 {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.form-group select {
    cursor: pointer;
}

.provider-presets {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.preset-label {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.preset-btn {
    padding: 0.4rem 0.8rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.preset-btn:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

.config-note {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 1rem;
}

.config-note a {
    color: var(--accent-primary);
    text-decoration: none;
}

.config-note a:hover {
    text-decoration: underline;
}

.save-config-btn {
    display: block;
    width: 100%;
    padding: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--accent-primary);
    border-radius: var(--border-radius);
    color: var(--accent-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.save-config-btn:hover {
    background: var(--accent-primary);
    color: white;
}

/* ===== 进度区 ===== */
.progress-section {
    margin-bottom: 2rem;
}

.progress-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.progress-header h2 {
    font-size: 1.3rem;
}

.progress-percent {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.progress-bar {
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: var(--accent-gradient);
    border-radius: 4px;
    transition: width 0.3s ease;
}

.progress-status {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.progress-log {
    max-height: 150px;
    overflow-y: auto;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.progress-log p {
    margin-bottom: 0.3rem;
}

.progress-log .success {
    color: var(--success);
}

.progress-log .warning {
    color: var(--warning);
}

.progress-log .error {
    color: var(--error);
}

/* ===== 结果区 ===== */
.results-section {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* 总分卡片 */
.score-overview {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.main-score-card {
    display: flex;
    align-items: center;
    gap: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
}

.score-ring-container {
    position: relative;
    width: 200px;
    height: 200px;
}

.score-value {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.score-info h2 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.score-info p {
    color: var(--text-secondary);
    max-width: 300px;
}

.dimension-scores {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.dimension-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    text-align: center;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.dimension-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.dimension-icon {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.dimension-name {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.dimension-score {
    font-size: 1.5rem;
    font-weight: 700;
}

.dimension-score.excellent {
    color: var(--success);
}

.dimension-score.good {
    color: #22c55e;
}

.dimension-score.average {
    color: var(--warning);
}

.dimension-score.poor {
    color: var(--error);
}

/* 雷达图 */
.chart-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 问题列表 */
.issues-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
}

.issues-section h2 {
    margin-bottom: 1.5rem;
}

.issues-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.issue-tab {
    padding: 0.6rem 1.2rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.issue-tab:hover {
    background: var(--bg-hover);
}

.issue-tab.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

.issue-tab[data-severity="critical"].active {
    background: var(--error);
    border-color: var(--error);
}

.issue-tab[data-severity="warning"].active {
    background: var(--warning);
    border-color: var(--warning);
}

.issue-tab[data-severity="info"].active {
    background: var(--info);
    border-color: var(--info);
}

.issue-tab[data-severity="pass"].active {
    background: var(--success);
    border-color: var(--success);
}

.issues-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.issue-item {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border-left: 4px solid;
}

.issue-item.critical {
    border-left-color: var(--error);
}

.issue-item.warning {
    border-left-color: var(--warning);
}

.issue-item.info {
    border-left-color: var(--info);
}

.issue-item.pass {
    border-left-color: var(--success);
}

.issue-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.issue-content {
    flex: 1;
}

.issue-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.issue-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.issue-code {
    background: var(--bg-card);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

/* AI建议 */
.ai-suggestions {
    background: var(--bg-card);
    border: 1px solid var(--accent-primary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.1);
}

.ai-suggestions h2 {
    margin-bottom: 1.5rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ai-content {
    line-height: 1.8;
    color: var(--text-secondary);
}

.ai-content h3 {
    color: var(--text-primary);
    margin: 1.5rem 0 1rem;
}

.ai-content ul {
    padding-left: 1.5rem;
}

.ai-content li {
    margin-bottom: 0.5rem;
}

.ai-content code {
    background: var(--bg-secondary);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9em;
}

.ai-content pre {
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1rem 0;
}

.ai-loading {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 2rem;
    color: var(--text-muted);
}

.ai-loading::before {
    content: '';
    width: 24px;
    height: 24px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 操作按钮 */
.result-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.action-btn {
    padding: 1rem 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.action-btn:hover {
    background: var(--bg-hover);
    transform: translateY(-2px);
}

.action-btn.primary {
    background: var(--accent-gradient);
    border: none;
}

.action-btn.primary:hover {
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

/* ===== 页脚 ===== */
.footer {
    margin-top: auto;
    padding: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer a {
    color: var(--accent-primary);
    text-decoration: none;
}

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

/* ===== 响应式 ===== */
@media (max-width: 900px) {
    .score-overview {
        grid-template-columns: 1fr;
    }

    .main-score-card {
        flex-direction: column;
        text-align: center;
    }

    .dimension-scores {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .app-container {
        padding: 1rem;
    }

    .logo h1 {
        font-size: 1.8rem;
    }

    .input-wrapper {
        flex-direction: column;
        padding: 1rem;
        gap: 0.5rem;
    }

    .input-wrapper input {
        width: 100%;
        text-align: center;
    }

    .analyze-btn {
        width: 100%;
        justify-content: center;
    }

    .dimension-scores {
        grid-template-columns: 1fr;
    }

    .result-actions {
        flex-direction: column;
    }

    .action-btn {
        width: 100%;
    }
}