/* 赛博朋克风格CSS - 节点优选系统 */
:root {
    --cyber-blue: #00f3ff;
    --cyber-purple: #9d00ff;
    --cyber-pink: #ff00ff;
    --cyber-green: #00ff9d;
    --cyber-yellow: #ffcc00;
    --cyber-red: #ff003c;
    
    --bg-dark: #0a0a14;
    --bg-darker: #050510;
    --bg-card: rgba(16, 16, 32, 0.8);
    --bg-card-hover: rgba(32, 32, 64, 0.9);
    
    --text-primary: #ffffff;
    --text-secondary: #b0b0ff;
    --text-muted: #8888cc;
    
    --border-color: rgba(0, 243, 255, 0.3);
    --border-glow: rgba(0, 243, 255, 0.5);
    --shadow-glow: 0 0 15px rgba(0, 243, 255, 0.5);
    
    --delay-excellent: #00ff9d;
    --delay-good: #00f3ff;
    --delay-moderate: #ffcc00;
    --delay-poor: #ff003c;
}

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

body {
    font-family: 'Share Tech Mono', monospace;
    background-color: var(--bg-darker);
    color: var(--text-primary);
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(157, 0, 255, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(0, 243, 255, 0.1) 0%, transparent 20%),
        linear-gradient(45deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

.cyber-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
}

/* 扫描线效果 */
.cyber-container::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        transparent 50%,
        rgba(0, 243, 255, 0.03) 50%
    );
    background-size: 100% 4px;
    pointer-events: none;
    z-index: 1;
}

/* 顶部标题栏 */
.cyber-header {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-glow);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.cyber-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--cyber-blue), transparent);
    animation: scan 3s linear infinite;
}

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

.header-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 30px;
    align-items: center;
    margin-bottom: 20px;
}

.logo-section {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.cyber-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    font-weight: 900;
    background: linear-gradient(90deg, var(--cyber-blue), var(--cyber-purple));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: flex;
    align-items: center;
    gap: 15px;
}

.cyber-title i {
    font-size: 2.2rem;
}

.glitch {
    position: relative;
    display: inline-block;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch::before {
    left: 2px;
    text-shadow: -2px 0 var(--cyber-red);
    animation: glitch-1 2s infinite linear alternate-reverse;
}

.glitch::after {
    left: -2px;
    text-shadow: 2px 0 var(--cyber-green);
    animation: glitch-2 3s infinite linear alternate-reverse;
}

@keyframes glitch-1 {
    0% { clip: rect(20px, 9999px, 21px, 0); }
    5% { clip: rect(15px, 9999px, 35px, 0); }
    10% { clip: rect(40px, 9999px, 45px, 0); }
    15% { clip: rect(10px, 9999px, 30px, 0); }
    20% { clip: rect(25px, 9999px, 50px, 0); }
    100% { clip: rect(0, 9999px, 0, 0); }
}

@keyframes glitch-2 {
    0% { clip: rect(30px, 9999px, 31px, 0); }
    5% { clip: rect(25px, 9999px, 45px, 0); }
    10% { clip: rect(50px, 9999px, 55px, 0); }
    15% { clip: rect(20px, 9999px, 40px, 0); }
    20% { clip: rect(35px, 9999px, 60px, 0); }
    100% { clip: rect(0, 9999px, 0, 0); }
}

.cyber-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    letter-spacing: 1px;
}

/* 服务器信息卡片 */
.server-info {
    display: flex;
    justify-content: flex-end;
}

.info-card {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--cyber-blue);
    border-radius: 8px;
    padding: 15px 20px;
    min-width: 250px;
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.3);
}

.info-label {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--cyber-blue);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.info-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 5px;
    word-break: break-all;
}

.info-location {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 状态栏 */
.status-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(0, 243, 255, 0.2);
}

.status-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.status-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.status-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--cyber-blue);
}

/* 赛博朋克按钮 */
.cyber-button {
    background: linear-gradient(45deg, var(--cyber-blue), var(--cyber-purple));
    border: none;
    border-radius: 6px;
    color: white;
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    padding: 12px 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.5);
}

.cyber-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(0, 243, 255, 0.8);
    background: linear-gradient(45deg, var(--cyber-purple), var(--cyber-blue));
}

.cyber-button:active {
    transform: translateY(0);
}

/* 主内容区 */
.cyber-main {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* 地理分类导航 */
.geo-nav {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow-glow);
}

.geo-nav-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.geo-nav-header i {
    color: var(--cyber-green);
    font-size: 1.5rem;
}

.geo-nav-header h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    color: var(--cyber-green);
}

.geo-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.geo-filters > div {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 10px 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.geo-filters > div:hover {
    background: rgba(0, 243, 255, 0.2);
    border-color: var(--cyber-blue);
}

.geo-filters > div.active {
    background: var(--cyber-blue);
    color: var(--bg-dark);
    border-color: var(--cyber-blue);
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.7);
}

.filter-all i {
    color: inherit;
}

/* 节点卡片网格 */
.nodes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.node-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(5px);
}

.node-card:hover {
    transform: translateY(-5px);
    border-color: var(--cyber-blue);
    box-shadow: 0 10px 20px rgba(0, 243, 255, 0.3);
    background: var(--bg-card-hover);
}

.node-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--cyber-blue), var(--cyber-purple));
}

.node-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.node-name {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.node-name i {
    color: var(--cyber-blue);
}

.node-latency {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 900;
    padding: 5px 15px;
    border-radius: 20px;
    background: rgba(0, 0, 0, 0.5);
}

.latency-excellent {
    color: var(--delay-excellent);
    text-shadow: 0 0 10px rgba(0, 255, 157, 0.5);
}

.latency-good {
    color: var(--delay-good);
    text-shadow: 0 0 10px rgba(0, 243, 255, 0.5);
}

.latency-moderate {
    color: var(--delay-moderate);
    text-shadow: 0 0 10px rgba(255, 204, 0, 0.5);
}

.latency-poor {
    color: var(--delay-poor);
    text-shadow: 0 0 10px rgba(255, 0, 60, 0.5);
}

.node-details {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.detail-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.detail-label i {
    width: 16px;
    text-align: center;
}

.detail-value {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.95rem;
}

.node-actions {
    display: flex;
    gap: 10px;
}

.action-btn {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 6px;
    font-family: 'Share Tech Mono', monospace;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.copy-btn {
    background: linear-gradient(45deg, var(--cyber-blue), var(--cyber-purple));
    color: white;
}

.copy-btn:hover {
    background: linear-gradient(45deg, var(--cyber-purple), var(--cyber-blue));
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.5);
}

.test-btn {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.test-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--cyber-blue);
}

/* 加载卡片 */
.loading-card {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.loading-spinner {
    margin-bottom: 20px;
}

.cyber-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid transparent;
    border-top: 4px solid var(--cyber-blue);
    border-right: 4px solid var(--cyber-purple);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 延迟图例 */
.legend-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow-glow);
}

.legend-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.legend-header i {
    color: var(--cyber-yellow);
    font-size: 1.5rem;
}

.legend-header h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    color: var(--cyber-yellow);
}

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

.legend-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 10px 15px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.color-box {
    width: 20px;
    height: 20px;
    border-radius: 4px;
}

.color-box.excellent {
    background: var(--delay-excellent);
    box-shadow: 0 0 10px rgba(0, 255, 157, 0.7);
}

.color-box.good {
    background: var(--delay-good);
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.7);
}

.color-box.moderate {
    background: var(--delay-moderate);
    box-shadow: 0 0 10px rgba(255, 204, 0, 0.7);
}

.color-box.poor {
    background: var(--delay-poor);
    box-shadow: 0 0 10px rgba(255, 0, 60, 0.7);
}

/* 底部信息栏 */
.cyber-footer {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    margin-top: 30px;
    position: relative;
    overflow: hidden;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.footer-left, .footer-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-left p, .footer-right p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-left i {
    color: var(--cyber-blue);
}

.footer-right i {
    color: var(--cyber-green);
}

.scan-line {
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--cyber-blue), transparent);
    animation: scan 2s linear infinite;
}

/* 复制成功提示 */
.copy-notification {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(45deg, var(--cyber-green), var(--cyber-blue));
    color: var(--bg-dark);
    padding: 15px 25px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 600;
    box-shadow: 0 5px 20px rgba(0, 255, 157, 0.5);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.5s ease;
    z-index: 1000;
}

.copy-notification.show {
    transform: translateY(0);
    opacity: 1;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .header-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .server-info {
        justify-content: flex-start;
    }
    
    .status-bar {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .nodes-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .cyber-title {
        font-size: 2rem;
    }
    
    .status-bar {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .geo-filters {
        overflow-x: auto;
        padding-bottom: 10px;
    }
    
    .geo-filters > div {
        flex-shrink: 0;
    }
}

@media (max-width: 480px) {
    .cyber-container {
        padding: 10px;
    }
    
    .cyber-header, .geo-nav, .legend-section, .cyber-footer {
        padding: 15px;
    }
    
    .nodes-grid {
        grid-template-columns: 1fr;
    }
    
    .node-actions {
        flex-direction: column;
    }
}