:root{--bg-primary:#0a0e14;--bg-secondary:#111620;--bg-card:#161d28;--border:#1e2633;--text-primary:#e6edf3;--text-secondary:#8b949e;--accent:#00d084;--accent-hover:#00b36a;--danger:#f85149;--code-bg:#1c2128}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-primary);color:var(--text-primary);min-height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif}#root{min-height:100vh}.loading-screen{min-height:100vh;color:var(--text-secondary);justify-content:center;align-items:center;font-size:1.1rem;display:flex}.login-page{background:var(--bg-primary);justify-content:center;align-items:center;min-height:100vh;padding:1rem;display:flex}.login-card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;width:100%;max-width:400px;padding:2.5rem 2rem}.login-card 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code{background:var(--code-bg);border-radius:4px;padding:.1rem .4rem;font-size:.82rem}.message-text table{border-collapse:collapse;width:auto;max-width:100%;margin:.8rem 0;font-size:.85rem;display:block;overflow-x:auto}.message-text th,.message-text td{border:1px solid var(--border);text-align:left;padding:.4rem .75rem}.message-text th{background:var(--bg-secondary);color:var(--text-primary);font-weight:600}.message-text tr:nth-child(2n) td{background:#ffffff08}.thinking{color:var(--text-secondary);font-style:italic}.chat-input-area{background:var(--bg-secondary);border-top:1px solid var(--border);gap:.7rem;padding:1rem 1.5rem;display:flex}.chat-input-area textarea{background:var(--bg-card);border:1px solid var(--border);color:var(--text-primary);resize:none;border-radius:10px;flex:1;max-height:120px;padding:.75rem 1rem;font-family:inherit;font-size:.9rem}.chat-input-area textarea:focus{border-color:var(--accent);outline:none}.chat-input-area 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