*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--purple: #7c6aff;--purple-light: #f0eeff;--purple-dark: #6b5bf5;--bg: #f5f6fa;--surface: #ffffff;--border: #e8e8f0;--text: #1a1a2e;--text-muted: #888;--sidebar-w: 220px;--topbar-h: 56px}body{font-family:-apple-system,Apple SD Gothic Neo,Noto Sans KR,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}button,input,textarea,select{font-family:inherit}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#d0d0e0;border-radius:3px}