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#e74c3c66}.logout-btn:active{transform:translateY(0)}.main-content{flex:1;padding:2rem;background:transparent;overflow-y:auto;display:flex;flex-direction:column;min-height:0;height:100vh}@media (max-width: 768px){.layout{flex-direction:column}.sidebar{width:100%;height:auto;position:relative}.nav-menu{display:flex;overflow-x:auto}.nav-menu li{flex-shrink:0}.main-content{padding:1.5rem}}*{margin:0;padding:0;box-sizing:border-box}:root[data-theme=light]{--bg: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);--bg-secondary: #ffffff;--text: #1a1a1a;--text-secondary: #666666;--card-bg: #ffffff;--border: #e0e0e0;--accent: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--accent-solid: #667eea;--success: #27ae60;--danger: #e74c3c;--warning: #f39c12;--sidebar-bg: linear-gradient(180deg, #2c3e50 0%, #34495e 100%);--sidebar-text: rgba(255, 255, 255, .8);--sidebar-text-hover: #ffffff;--shadow: rgba(0, 0, 0, .08);--shadow-hover: rgba(0, 0, 0, .12);--input-bg: #ffffff;--input-border: #e0e0e0;--hover-bg: #f8f9ff;--chart-grid: #e0e0e0;--chart-text: #666666}:root[data-theme=dark]{--bg: linear-gradient(135deg, #0f1115 0%, #161a22 100%);--bg-secondary: #1a1f2e;--text: #e4e6eb;--text-secondary: #b0b3b8;--card-bg: #1e2330;--border: #2d3441;--accent: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--accent-solid: #667eea;--success: #4ade80;--danger: #f87171;--warning: #fbbf24;--sidebar-bg: linear-gradient(180deg, #1a1f2e 0%, #0f1115 100%);--sidebar-text: rgba(228, 230, 235, .8);--sidebar-text-hover: #ffffff;--shadow: rgba(0, 0, 0, .3);--shadow-hover: rgba(0, 0, 0, .5);--input-bg: #1e2330;--input-border: #2d3441;--hover-bg: #252a3a;--chart-grid: #2d3441;--chart-text: #b0b3b8}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg);min-height:100vh;color:var(--text);transition:background .3s ease,color .3s ease}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}