:root{--bg:#fff;--text:#16161a;--muted:#5b5b66;--border:#e3e3ea;--primary:#4f46e5;--on-primary:#fff;--danger:#c81e1e;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg:#121216;--text:#f2f2f5;--muted:#a3a3ad;--border:#2c2c35;--primary:#8b85ff;--on-primary:#0b0b10;--danger:#ff6b6b}}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font:16px/1.6 system-ui,-apple-system,Apple SD Gothic Neo,Noto Sans KR,sans-serif}main{max-width:440px;margin:0 auto;padding:32px 16px 48px}h1{margin:0 0 8px;font-size:1.4rem}h2{margin:28px 0 8px;font-size:1.05rem}p{margin:8px 0}.muted{color:var(--muted);font-size:.9rem}.card{border:1px solid var(--border);border-radius:14px;margin:16px 0;padding:16px}button,.button{border:1px solid var(--border);width:100%;min-height:48px;color:var(--text);font:inherit;cursor:pointer;background:0 0;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:0 16px;font-weight:600;text-decoration:none;display:inline-flex}button.primary{background:var(--primary);border-color:var(--primary);color:var(--on-primary)}button.danger{color:var(--danger);border-color:var(--danger)}button:disabled{opacity:.55;cursor:default}.stack>*+*{margin-top:10px}.error{color:var(--danger)}footer{color:var(--muted);flex-wrap:wrap;gap:16px;margin-top:40px;font-size:.85rem;display:flex}footer a{color:inherit}