:root{--primary-color: #2c3e50;--secondary-color: #34495e;--accent-color: #667eea;--accent-purple: #764ba2;--text-primary: #2c3e50;--text-secondary: #666;--text-light: #6c757d;--text-muted: #888;--bg-white: #ffffff;--bg-light: #f8f9fa;--bg-success: #d4edda;--bg-info: #e7f3ff;--border-light: #e9ecef;--border-primary: #667eea;--spacing-xs: 8px;--spacing-sm: 10px;--spacing-md: 15px;--spacing-lg: 20px;--spacing-xl: 30px;--font-xs: .8em;--font-sm: .85em;--font-base: .9em;--font-md: 1em;--font-lg: 1.1em;--font-xl: 1.2em;--border-radius-sm: 6px;--border-radius: 8px;--border-radius-lg: 12px}*{box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6;background:linear-gradient(135deg,var(--accent-color) 0%,var(--accent-purple) 100%);min-height:100vh;margin:0;padding:0}.outer-container{padding:var(--spacing-lg)}.container{margin:auto;max-width:1200px;background:var(--bg-white);border-radius:var(--border-radius-lg);box-shadow:0 20px 40px 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solid #28a745}.click-info{background:var(--bg-success);color:#155724;border:1px solid #c3e6cb;padding:var(--spacing-sm);border-radius:4px;margin-top:var(--spacing-sm);font-size:var(--font-base)}.interactive-demo{background:var(--bg-light);padding:var(--spacing-md);border-radius:var(--border-radius);margin:var(--spacing-md) 0;overflow-x:auto}.click-info{margin-top:var(--spacing-sm);padding:var(--spacing-xs);background:var(--bg-info);border-radius:4px;font-size:12px;color:#0056b3;word-wrap:break-word}.status-indicator{display:inline-block;width:var(--spacing-xs);height:var(--spacing-xs);border-radius:50%;margin-right:var(--spacing-xs)}.status-running{background-color:#28a745;animation:pulse 2s infinite}.status-stopped{background-color:#dc3545}@keyframes pulse{0%{opacity:1}50%{opacity:.5}to{opacity:1}}@media(max-width:768px){.controls{padding:12px;margin:10px 0}.control-group{gap:8px;justify-content:flex-start}.btn-success,.btn-danger{padding:6px 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