*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0d0f14;--card:#151820;--border:#2a2f3d;--accent:#4fffb0;--text:#e2e8f0;--muted:#64748b;--danger:#ff5c5c}html,body{background:var(--bg);color:var(--text);min-height:100vh;font-family:Noto Sans KR,sans-serif}button,input{font-family:Noto Sans KR,sans-serif}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.card-wrapper .card-actions{opacity:0;transition:opacity .15s}.card-wrapper:hover .card-actions{opacity:1}