:root{--canvas:#f3f4f6;--surface:#ffffff;--surface-subtle:#f7f7f8;--ink:#15171a;--muted:#70747c;--border:#e2e4e8;--accent:#ff5a36;--accent-soft:rgba(255,90,54,.14)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;overflow-x:clip;color:var(--ink);background:radial-gradient(circle at 10% -10%,rgba(255,255,255,.95),transparent 30%),var(--canvas);font-family:Arial,Noto Sans KR,sans-serif;-webkit-font-smoothing:antialiased}button,input{font:inherit}button:focus-visible,input:focus-visible{outline:3px solid var(--accent-soft);outline-offset:2px}::selection{background:var(--accent-soft)}