:root{--bg:#fff;--panel:#f4f5f7;--text:#16171a;--muted:#6b6f76;--line:#e4e6ea;--me:#3b5bdb;--me-text:#fff;--bot:#f1f3f5;--accent:#3b5bdb;--error:#c92a2a;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg:#16171a;--panel:#1f2125;--text:#eceef1;--muted:#9aa0a8;--line:#2c2f34;--me:#4c6ef5;--bot:#25282d;--accent:#748ffc;--error:#ff8787}}*{box-sizing:border-box}html,body{background:var(--bg);height:100%;color:var(--text);-webkit-text-size-adjust:100%;margin:0;font-family:-apple-system,BlinkMacSystemFont,Apple SD Gothic Neo,Noto Sans KR,Malgun Gothic,sans-serif}button{font:inherit;color:inherit;cursor:pointer}.muted{color:var(--muted)}.small{font-size:13px}.error{color:var(--error)}.center{flex-direction:column;justify-content:center;align-items:center;gap:16px;min-height:100dvh;padding:24px;display:flex}.card{text-align:center;width:100%;max-width:340px}.card 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