.chat-widget{--chat-accent:#4f14ee;--chat-accent-contrast:#fff;--chat-bg:#fff;--chat-bubble-bot:#f2f2f0;--chat-text:#1a1a1a;--chat-radius:14px;position:fixed;right:20px;bottom:20px;z-index:9999;font-family:system-ui,-apple-system,Segoe UI,sans-serif}.chat-launcher{align-items:center;background:var(--chat-accent);color:var(--chat-accent-contrast);border:none;border-radius:50%;display:flex;justify-content:center;height:54px;width:54px;padding:0;cursor:pointer;box-shadow:0 6px 20px rgba(0,0,0,.18);transition:transform .15s ease}.chat-launcher:hover{transform:translateY(-2px)}body.fab-dim .chat-launcher{opacity:0;pointer-events:none;transform:scale(.6);transition:opacity .2s ease,transform .2s ease}@media (max-width:520px){.chat-widget{bottom:16px;right:16px}.chat-launcher{height:48px;width:48px}}.chat-panel{position:absolute;bottom:64px;right:0;width:340px;max-width:90vw;height:460px;max-height:70vh;background:var(--chat-bg);border-radius:var(--chat-radius);box-shadow:0 12px 40px rgba(0,0,0,.22);display:flex;flex-direction:column;overflow:hidden}.chat-header{background:var(--chat-accent);color:var(--chat-accent-contrast);padding:14px 16px;font-weight:600;display:flex;align-items:center;justify-content:space-between}.chat-close{background:none;border:none;color:inherit;font-size:22px;line-height:1;cursor:pointer;padding:0 4px}.chat-messages{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px}.chat-bubble{max-width:85%;padding:10px 13px;border-radius:12px;font-size:14px;line-height:1.4;color:var(--chat-text);white-space:pre-wrap}.chat-bubble.assistant{background:var(--chat-bubble-bot);align-self:flex-start;border-bottom-left-radius:4px}.chat-bubble.user{background:var(--chat-accent);color:var(--chat-accent-contrast);align-self:flex-end;border-bottom-right-radius:4px}.chat-bubble.loading{display:flex;gap:4px;align-items:center;padding:14px 16px}.dot{width:6px;height:6px;border-radius:50%;background:#999;animation:chat-bounce 1.2s ease-in-out infinite}.dot:nth-child(2){animation-delay:.15s}.dot:nth-child(3){animation-delay:.3s}@keyframes chat-bounce{0%,60%,to{transform:translateY(0);opacity:.5}30%{transform:translateY(-4px);opacity:1}}.chat-input-row{display:flex;border-top:1px solid #eee;padding:10px;gap:8px}.chat-input-row input{flex:1;border:1px solid #ddd;border-radius:8px;padding:9px 11px;font-size:14px;outline:none}.chat-input-row input:focus{border-color:var(--chat-accent)}.chat-input-row button{background:var(--chat-accent);color:var(--chat-accent-contrast);border:none;border-radius:8px;padding:9px 14px;font-size:14px;font-weight:600;cursor:pointer}.chat-input-row button:disabled{opacity:.5;cursor:not-allowed}@media (prefers-reduced-motion:reduce){.chat-launcher,.dot{animation:none;transition:none}}