*{box-sizing:border-box;margin:0;padding:0}:root{--bg-body: #0a0a0a;--bg-surface: #111111;--bg-card: #161616;--bg-input: #1e1e1e;--bg-hover: rgba(255,255,255,.04);--border-color: #2a2a2a;--text-primary: #e0e0e0;--text-secondary:#888888;--text-muted: #555555;--accent: #e94560;--accent-hover: #c73652;--accent-bg: rgba(233,69,96,.08);--scrollbar-track: #1a1a1a;--scrollbar-thumb: #444444}body.theme-dark-blue{--bg-body: #1a1a2e;--bg-surface: #16213e;--bg-card: #16213e;--bg-input: #1a2a4a;--bg-hover: rgba(255,255,255,.04);--border-color: #0f3460;--text-primary: #ffffff;--text-secondary:#aaaaaa;--text-muted: #666666;--accent: #e94560;--accent-hover: #c73652;--accent-bg: rgba(233,69,96,.08);--scrollbar-track: #0f3460;--scrollbar-thumb: #e94560}body.theme-light{--bg-body: #f5f5f5;--bg-surface: #ffffff;--bg-card: #ffffff;--bg-input: #f8f8f8;--bg-hover: rgba(0,0,0,.04);--border-color: #e0e0e0;--text-primary: #1a1a1a;--text-secondary:#666666;--text-muted: #999999;--accent: #cc3333;--accent-hover: #aa2222;--accent-bg: rgba(204,51,51,.08);--scrollbar-track: #e0e0e0;--scrollbar-thumb: #aaaaaa}body{background:var(--bg-body);color:var(--text-primary);font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;min-height:100vh}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--scrollbar-track)}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--accent-hover)}