:root{--bg-primary: #0f1115;--bg-secondary: #1a1e26;--bg-tertiary: #252b36;--text-primary: #ffffff;--text-secondary: #b0b8c6;--text-muted: #6e7a8e;--primary-color: #0078d4;--primary-hover: #0060aa;--primary-active: #004d88;--accent-success: #107c10;--accent-warning: #d83b01;--accent-error: #c50f1f;--accent-info: #0078d4;--border-color: #3b4252;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--sidebar-width: 250px;--header-height: 60px;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--shadow-sm: 0 2px 4px rgba(0,0,0,.2);--shadow-md: 0 4px 8px rgba(0,0,0,.3)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.5;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--primary-color);text-decoration:none;transition:color .2s}a:hover{text-decoration:underline;color:var(--primary-hover)}button{cursor:pointer;font-family:inherit;border:none;background:none}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:var(--radius-sm)}::-webkit-scrollbar-thumb:hover{background:var(--border-color)}