:root{--c-bg:#f5f5f2;--c-surface:#fff;--c-text:#1a1a1a;--c-muted:#5c5c57;--c-primary:#1f4fbf;--c-ok:#1b6e3c;--c-danger:#b3261e;--font:system-ui, -apple-system, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;--fs-1:16px;--fs-2:20px;--fs-3:28px;--s-1:8px;--s-2:16px;--s-3:24px;--radius:8px;--tap:56px;--canvas-min-h:280px}*{box-sizing:border-box}body{background:var(--c-bg);color:var(--c-text);font-family:var(--font);font-size:var(--fs-2);margin:0;line-height:1.5}:focus-visible{outline:3px solid var(--c-primary);outline-offset:2px}