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24px}.empty-heading{font-size:22px;font-weight:600;color:var(--text);margin-bottom:8px}.empty-sub{color:var(--text-muted);margin-bottom:28px}.suggestions{display:flex;flex-direction:column;gap:10px;align-items:center}.suggestion-chip{background:var(--surface);border:1px solid var(--border);color:var(--text-dim);border-radius:var(--radius-sm);padding:10px 18px;cursor:pointer;font-size:13.5px;transition:background .15s,border-color .15s,color .15s;max-width:360px;width:100%}.suggestion-chip:hover{background:var(--surface-hover);border-color:var(--accent);color:var(--text)}.message-row{display:flex;width:100%}.message-row.user{justify-content:flex-end}.message-row.assistant{justify-content:flex-start}.bubble{max-width:78%;padding:12px 16px;border-radius:var(--radius);line-height:1.6;white-space:pre-wrap;word-break:break-word;font-size:14.5px}.bubble.user{background:var(--user-bg);border:1px solid 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