.xc{--xc-primary:#1b2333;--xc-accent:#e0702b;--xc-bg:#f6f5f1;--xc-surface:#fff;--xc-text:#1b2333;--xc-muted:#5a6372;--xc-border:#e2e0d8;--xc-user-bubble:#1b2333;--xc-user-text:#fff;--xc-bot-bubble:#fff;--xc-radius:14px;--xc-font:system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;background:var(--xc-bg);height:100%;min-height:0;color:var(--xc-text);font-family:var(--xc-font);flex-direction:column;font-size:15px;line-height:1.45;display:flex;position:relative}.xc *,.xc :before,.xc :after{box-sizing:border-box}.xc-header{padding:calc(12px + env(safe-area-inset-top)) 16px 12px;background:var(--xc-primary);color:#fff;flex:none}.xc-title{font-size:17px;font-weight:700}.xc-subtitle{opacity:.75;font-size:12px}.xc-log{overscroll-behavior:contain;outline:none;flex-direction:column;flex:1;gap:8px;min-height:0;padding:12px;display:flex;position:relative;overflow-y:auto}.xc-log:focus-visible{box-shadow:inset 0 0 0 2px var(--xc-accent)}.xc-row{display:flex}.xc-row--user{justify-content:flex-end}.xc-bubble{border-radius:var(--xc-radius);overflow-wrap:anywhere;max-width:min(85%,520px);padding:8px 12px}.xc-bubble--bot{background:var(--xc-bot-bubble);border:1px solid var(--xc-border);border-bottom-left-radius:4px}.xc-bubble--user{background:var(--xc-user-bubble);color:var(--xc-user-text);white-space:pre-wrap;border-bottom-right-radius:4px}.xc-text{white-space:pre-wrap}.xc-text code{background:var(--xc-bg);border-radius:4px;padding:0 4px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em}.xc-image{border-radius:calc(var(--xc-radius) - 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