/* 全局变量 */
:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #60a5fa;
    --secondary: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1);
    
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition: all 0.2s ease;
}

[data-theme="dark"] {
    --primary: #60a5fa;
    --primary-dark: #3b82f6;
    --primary-light: #93c5fd;
    
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    --border-color: #334155;
    --border-light: #475569;
    
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.3);
}

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

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

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 主题切换 */
.theme-switch-wrapper {
    position: absolute;
    top: 20px;
    right: 24px;
    z-index: 100;
}

.theme-switch-label {
    display: flex;
    width: 60px;
    height: 32px;
    cursor: pointer;
}

.theme-switch input {
    display: none;
}

.slider {
    position: relative;
    width: 100%;
    background: var(--bg-tertiary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 6px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.slider:before {
    content: "";
    position: absolute;
    width: 24px;
    height: 24px;
    left: 4px;
    background: var(--primary);
    border-radius: 50%;
    transition: var(--transition);
}

input:checked + .slider:before {
    transform: translateX(28px);
    background: #fbbf24;
}

.sun-icon, .moon-icon {
    font-size: 14px;
    z-index: 1;
}

/* 头部 */
.main-header {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    padding: 60px 0 40px;
    position: relative;
    border-bottom: 1px solid var(--border-color);
}

.hero {
    text-align: center;
}

.hero h1 {
    font-size: 2.75rem;
    font-weight: 800;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--info) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 32px;
}

/* 搜索框 */
.search-container {
    max-width: 640px;
    margin: 0 auto 20px;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 4px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.search-icon {
    padding: 0 12px 0 16px;
    font-size: 20px;
    opacity: 0.6;
}

.search-input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 16px;
    padding: 14px 0;
    color: var(--text-primary);
    outline: none;
}

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

.search-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: white;
    border: none;
    padding: 14px 24px;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.search-btn:hover {
    background: var(--primary-dark);
    transform: translateX(2px);
}

.btn-icon {
    font-size: 18px;
    transition: var(--transition);
}

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

/* 自动检测提示 */
.auto-detect-hint {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 14px;
    padding: 8px 0;
}

.hint-icon {
    font-size: 16px;
}

/* 主内容区 */
main {
    padding: 40px 0;
    min-height: 60vh;
}

/* 加载遮罩 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-content {
    background: var(--bg-card);
    padding: 40px 60px;
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-xl);
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

.loading-text {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
}

.loading-progress {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.progress-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--text-secondary);
}

.progress-item.done .progress-icon {
    color: var(--success);
}

.progress-item.error .progress-icon {
    color: var(--danger);
}

/* 结果概览 */
.results-overview {
    margin-bottom: 32px;
}

.overview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.overview-header h2 {
    font-size: 1.5rem;
}

.overview-ip {
    background: var(--bg-tertiary);
    padding: 8px 16px;
    border-radius: var(--radius);
    font-family: monospace;
}

.ip-label {
    color: var(--text-secondary);
    margin-right: 8px;
}

.ip-value {
    font-weight: 600;
    color: var(--primary);
}

.overview-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.overview-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition);
}

.overview-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.card-icon {
    font-size: 32px;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius);
}

.card-title {
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.card-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

/* 结果网格 */
.results-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 32px;
    align-items: stretch;
}

.result-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.result-panel:hover {
    box-shadow: var(--shadow-lg);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.panel-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 16px;
}

.panel-icon {
    font-size: 18px;
}

.panel-status {
    font-size: 18px;
}

.panel-content {
    padding: 20px;
    flex: 1;
}

.panel-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 40px;
    color: var(--text-secondary);
}

.mini-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* 信息网格 */
.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.info-item {
    background: var(--bg-secondary);
    padding: 12px 16px;
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
}

.info-item strong {
    display: block;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 4px;
    font-weight: 500;
}

.info-item span {
    font-size: 14px;
    font-weight: 500;
    word-break: break-word;
}

.info-item.full-width {
    grid-column: 1 / -1;
}

/* 标签 */
.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    color: white;
}

.tag-vpn { background: var(--danger); }
.tag-proxy { background: var(--warning); }
.tag-tor { background: #6b21a8; }
.tag-hosting { background: #8b5cf6; }
.tag-mobile { background: var(--success); }
.tag-business { background: #ec4899; }
.tag-isp { background: var(--info); }

/* 布尔值 */
.bool-true { color: var(--success); }
.bool-false { color: var(--danger); }

/* 评分 */
.score {
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
}

.score-low { background: rgba(16, 185, 129, 0.2); color: var(--success); }
.score-medium { background: rgba(245, 158, 11, 0.2); color: var(--warning); }
.score-high { background: rgba(239, 68, 68, 0.2); color: var(--danger); }

/* 地图区域 */
.map-section {
    margin-bottom: 32px;
}

.section-header {
    margin-bottom: 20px;
}

.section-header h2 {
    font-size: 1.5rem;
}

.map-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 400px;
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* 欢迎信息 */
.welcome-message {
    text-align: center;
    padding: 80px 20px;
}

.welcome-icon {
    font-size: 64px;
    margin-bottom: 24px;
}

.welcome-message h2 {
    font-size: 1.75rem;
    margin-bottom: 12px;
}

.welcome-message p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.features {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.feature {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-secondary);
    padding: 12px 20px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.feature-icon {
    font-size: 20px;
}

.feature-text {
    font-size: 14px;
    font-weight: 500;
}

/* 错误面板 */
.panel-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger);
    border-radius: var(--radius);
    padding: 16px;
    color: var(--danger);
    text-align: center;
}

/* 页脚 */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 24px 0;
    text-align: center;
}

.footer-content {
    color: var(--text-secondary);
    font-size: 14px;
}

/* 响应式 */
@media (max-width: 1024px) {
    .overview-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .overview-cards {
        grid-template-columns: 1fr;
    }
    
    .search-box {
        flex-direction: column;
        padding: 8px;
    }
    
    .search-input {
        width: 100%;
        text-align: center;
    }
    
    .search-btn {
        width: 100%;
        justify-content: center;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .features {
        flex-direction: column;
        align-items: center;
    }
}