:root{--kb-bg: #08090a;--kb-panel: #0f1011;--kb-surface: #191a1b;--kb-surface-2: #28282c;--kb-fg: #f7f8f8;--kb-fg-muted: #8a8f98;--kb-fg-subtle: #62666d;--kb-brand: #5e6ad2;--kb-accent: #7170ff;--kb-border: rgba(255, 255, 255, .08);--kb-border-subtle: rgba(255, 255, 255, .05);--kb-radius: 10px;--kb-gap: 12px;font-family:Inter Variable,SF Pro Display,-apple-system,system-ui,Segoe UI,Roboto,sans-serif;font-feature-settings:"cv01","ss03";color-scheme:dark}*,*:before,*:after{box-sizing:border-box}html,body,#root{margin:0;padding:0;height:100%;background:var(--kb-bg);color:var(--kb-fg);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button,textarea{font:inherit;color:inherit}.kb-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;padding:24px;text-align:center;gap:8px}.kb-state--loading{color:var(--kb-fg-muted)}.kb-state--error{color:var(--kb-fg)}.kb-state__detail{margin:0;color:var(--kb-fg-muted);font-size:13px}.kb-panel{display:flex;flex-direction:column;height:100%;background:var(--kb-bg)}.kb-panel__header{display:flex;align-items:flex-start;gap:var(--kb-gap);padding:14px 16px;border-bottom:1px solid var(--kb-border-subtle);background:var(--kb-panel)}.kb-panel__heading{flex:1;min-width:0}.kb-panel__title{margin:0;font-size:14px;font-weight:510;letter-spacing:-.01em;color:var(--kb-fg)}.kb-panel__subtitle{margin:2px 0 0;font-size:12px;color:var(--kb-fg-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.kb-panel__close{flex:0 0 auto;width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:transparent;border:none;border-radius:6px;cursor:pointer;color:var(--kb-fg-muted)}.kb-panel__close:hover{background:var(--kb-surface);color:var(--kb-fg)}.kb-panel__close:focus-visible{outline:2px solid var(--kb-accent);outline-offset:2px}.kb-panel__messages{flex:1;min-height:0;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:8px}.kb-empty{margin:auto;color:var(--kb-fg-muted);text-align:center;font-size:13px}.kb-typing{align-self:flex-start;padding:8px 12px;background:var(--kb-surface);border-radius:var(--kb-radius);color:var(--kb-fg-muted);font-size:16px;letter-spacing:.2em}.kb-panel__error{padding:8px 16px;font-size:12px;background:#ef44441f;color:#fca5a5;border-top:1px solid var(--kb-border-subtle)}.kb-bubble{display:flex;max-width:85%}.kb-bubble--user{align-self:flex-end}.kb-bubble--assistant{align-self:flex-start}.kb-bubble__content{padding:8px 12px;border-radius:var(--kb-radius);white-space:pre-wrap;word-wrap:break-word;font-size:13px}.kb-bubble--user .kb-bubble__content{background:var(--kb-brand);color:#fff}.kb-bubble--assistant .kb-bubble__content{background:var(--kb-surface);color:var(--kb-fg)}.kb-composer{display:flex;gap:8px;padding:12px 16px 16px;border-top:1px solid var(--kb-border-subtle);background:var(--kb-panel)}.kb-composer__input{flex:1;background:var(--kb-surface);border:1px solid var(--kb-border);border-radius:var(--kb-radius);color:var(--kb-fg);padding:8px 12px;resize:none;min-height:36px;max-height:120px;font-size:13px;line-height:1.4;outline:none}.kb-composer__input:focus{border-color:var(--kb-accent)}.kb-composer__input:disabled{opacity:.6;cursor:not-allowed}.kb-composer__send{width:36px;height:36px;border:none;border-radius:var(--kb-radius);background:var(--kb-brand);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;flex:0 0 auto}.kb-composer__send:hover:not(:disabled){background:var(--kb-accent)}.kb-composer__send:disabled{opacity:.4;cursor:not-allowed}.kb-composer__send:focus-visible{outline:2px solid var(--kb-accent);outline-offset:2px}.kb-panel__messages::-webkit-scrollbar{width:6px}.kb-panel__messages::-webkit-scrollbar-thumb{background:var(--kb-surface-2);border-radius:3px}