/* 现代数据可视化平台样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

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

.header {
    text-align: center;
    margin-bottom: 30px;
    color: white;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 控制面板样式 */
.controls {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    border: 1px solid rgba(255,255,255,0.2);
}

.control-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    align-items: end;
}

.control-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.control-item label {
    font-weight: 600;
    color: #555;
    font-size: 0.9rem;
}

.control-item select,
.control-item input[type="range"] {
    padding: 10px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s ease;
    background: white;
}

.control-item select:focus,
.control-item input[type="range"]:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.control-item input[type="range"] {
    padding: 5px;
}

.control-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #667eea;
}

#dataPointsValue {
    font-weight: 600;
    color: #667eea;
    font-size: 0.9rem;
}

/* 按钮样式 */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.btn-secondary {
    background: linear-gradient(135deg, #f093fb, #f5576c);
    color: white;
}

.btn-info {
    background: linear-gradient(135deg, #4facfe, #00f2fe);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, #fa709a, #fee140);
    color: white;
}

/* 仪表板布局 */
.dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.chart-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.chart-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}

.chart-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 15px;
    text-align: center;
    padding-bottom: 10px;
    border-bottom: 2px solid #f0f0f0;
}

.chart {
    width: 100%;
    height: 300px;
    border-radius: 8px;
}

/* 信息面板 */
.info-panel {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    border: 1px solid rgba(255,255,255,0.2);
}

.info-panel h3 {
    color: #333;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.info-panel ul {
    margin: 15px 0;
    padding-left: 20px;
}

.info-panel li {
    margin-bottom: 8px;
    color: #555;
}

.info-panel p {
    color: #666;
    margin-bottom: 10px;
}

/* 加载遮罩 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    backdrop-filter: blur(5px);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* 工具提示 */
.tooltip {
    position: absolute;
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    pointer-events: none;
    z-index: 1000;
    max-width: 200px;
    word-wrap: break-word;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .dashboard {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .control-group {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .chart {
        height: 250px;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.5rem;
    }
    
    .controls {
        padding: 15px;
    }
    
    .chart-container {
        padding: 15px;
    }
    
    .chart {
        height: 200px;
    }
}