.mhc-wc{--wc-bg: #ffffff;--wc-ink: #1a1c1f;--wc-muted: #6b7280;--wc-line: #e5e7eb;--wc-accent: #1f5fbf;--wc-accent-ink: #ffffff;--wc-them: #f3f4f6;--wc-warn-bg: #fff7ed;--wc-warn-ink: #9a3412;--wc-err-bg: #fef2f2;--wc-err-ink: #991b1b;display:flex;flex-direction:column;width:min(100%,400px);height:min(100vh,620px);margin:0 auto;background:var(--wc-bg);color:var(--wc-ink);border:1px solid var(--wc-line);border-radius:12px;overflow:hidden;font:14px/1.5 system-ui,-apple-system,Segoe UI,Noto Sans KR,sans-serif}.mhc-wc__head{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 14px;border-bottom:1px solid var(--wc-line)}.mhc-wc__title{font-weight:600}.mhc-wc__state{font-size:12px;color:var(--wc-muted)}.mhc-wc__log{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px}.mhc-wc__row{display:flex}.mhc-wc__row--me{justify-content:flex-end}.mhc-wc__bubble{max-width:78%;padding:8px 11px;border-radius:12px;background:var(--wc-them);white-space:pre-wrap;overflow-wrap:anywhere}.mhc-wc__row--me .mhc-wc__bubble{background:var(--wc-accent);color:var(--wc-accent-ink)}.mhc-wc__who{display:block;font-size:11px;color:var(--wc-muted);margin-bottom:3px}.mhc-wc__row--me .mhc-wc__who{display:none}.mhc-wc__sys{align-self:center;font-size:12px;color:var(--wc-muted);background:var(--wc-them);padding:4px 10px;border-radius:999px}.mhc-wc__notice{padding:8px 14px;font-size:13px;background:var(--wc-warn-bg);color:var(--wc-warn-ink)}.mhc-wc__error{padding:8px 14px;font-size:13px;background:var(--wc-err-bg);color:var(--wc-err-ink)}.mhc-wc__foot{display:flex;gap:8px;padding:10px;border-top:1px solid var(--wc-line)}.mhc-wc__input{flex:1;min-width:0;padding:9px 11px;border:1px solid var(--wc-line);border-radius:8px;font:inherit;color:inherit;background:var(--wc-bg)}.mhc-wc__input:focus-visible{outline:2px solid var(--wc-accent);outline-offset:1px}.mhc-wc__btn{padding:9px 14px;border:1px solid transparent;border-radius:8px;background:var(--wc-accent);color:var(--wc-accent-ink);font:inherit;font-weight:600;cursor:pointer}.mhc-wc__btn:disabled{opacity:.5;cursor:default}.mhc-wc__btn--ghost{background:transparent;color:var(--wc-accent);border-color:var(--wc-line)}.mhc-wc__btn:focus-visible{outline:2px solid var(--wc-accent);outline-offset:2px}.mhc-wc__center{margin:auto;text-align:center;padding:24px;color:var(--wc-muted)}.mhc-wc__link{color:var(--wc-accent);text-decoration:underline}.mhc-wc__link:focus-visible{outline:2px solid var(--wc-accent);outline-offset:2px}.mhc-wc__acts{display:flex;gap:6px;flex-shrink:0}.mhc-wc__notice--ask{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}.mhc-wc__asks{display:flex;gap:6px;flex-shrink:0}.mhc-wc__btn--danger{background:#b3261e;color:#fff;border-color:#b3261e}