:root{--bg-primary: #0f0f0f;--bg-secondary: #1a1a1a;--bg-tertiary: #252525;--bg-glass: rgba(30, 30, 30, .8);--text-primary: #ffffff;--text-secondary: #a1a1a1;--text-muted: #6b6b6b;--accent-primary: #6366f1;--accent-secondary: #818cf8;--accent-gradient: linear-gradient( 135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100% );--success: #10b981;--warning: #f59e0b;--error: #ef4444;--border-color: rgba(255, 255, 255, .1);--border-glow: rgba(99, 102, 241, .3);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px rgba(99, 102, 241, .2);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--font-mono: "JetBrains Mono", "Fira Code", "SF Mono", Consolas, monospace;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{height:100%}.app{display:flex;flex-direction:column;height:100%;max-width:900px;margin:0 auto;background:var(--bg-secondary);border-left:1px solid var(--border-color);border-right:1px solid var(--border-color)}.header{padding:16px 24px;background:var(--bg-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:100}.header-content{display:flex;justify-content:space-between;align-items:center;gap:16px}.logo{display:flex;align-items:center;gap:12px}.logo-icon{width:36px;height:36px;padding:6px;background:var(--accent-gradient);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-glow)}.logo-icon svg{width:100%;height:100%;color:#fff}.logo h1{font-size:1.25rem;font-weight:600;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header-controls{display:flex;align-items:center;gap:8px;font-size:.875rem;color:var(--text-secondary)}.version-select{padding:6px 12px;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-primary);font-size:.875rem;cursor:pointer;transition:all .2s ease}.version-select:hover{border-color:var(--accent-primary)}.version-select:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 2px var(--border-glow)}.chat-container{flex:1;overflow-y:auto;padding:24px;scroll-behavior:smooth}.welcome-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-height:60vh;padding:40px 20px;animation:fadeIn .5s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.welcome-icon{width:80px;height:80px;padding:20px;background:var(--accent-gradient);border-radius:var(--radius-xl);margin-bottom:24px;box-shadow:var(--shadow-glow),var(--shadow-lg);animation:pulse 2s infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.welcome-icon svg{width:100%;height:100%;color:#fff}.welcome-screen h2{font-size:2rem;font-weight:700;margin-bottom:12px;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.welcome-screen>p{color:var(--text-secondary);max-width:400px;margin-bottom:32px}.welcome-examples{width:100%;max-width:500px}.welcome-examples h4{font-size:.875rem;color:var(--text-muted);margin-bottom:16px;text-transform:uppercase;letter-spacing:.05em}.example-queries{display:flex;flex-direction:column;gap:8px}.example-query{padding:12px 16px;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;text-align:left;transition:all .2s ease}.example-query:hover:not(:disabled){background:var(--bg-glass);border-color:var(--accent-primary);transform:translate(4px)}.example-query:disabled{opacity:.5;cursor:not-allowed}.example-query code{font-family:var(--font-mono);font-size:.8rem;color:var(--text-secondary);display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.messages{display:flex;flex-direction:column;gap:24px}.message{display:flex;gap:16px;animation:messageSlide .3s ease}@keyframes messageSlide{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message-avatar{width:36px;height:36px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;flex-shrink:0}.message-avatar svg{width:20px;height:20px}.user-avatar{background:linear-gradient(135deg,#3b82f6,#1d4ed8);color:#fff}.assistant-avatar{background:var(--accent-gradient);color:#fff;box-shadow:var(--shadow-glow)}.message-content{flex:1;min-width:0}.message-label{font-size:.75rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}.message-body{background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:16px}.user-message .message-body{background:#3b82f61a;border-color:#3b82f633}.sql-code{font-family:var(--font-mono);font-size:.875rem;line-height:1.7;white-space:pre-wrap;word-break:break-word;margin:0}.sql-code.optimized{background:#10b9811a;border:1px solid rgba(16,185,129,.2);border-radius:var(--radius-sm);padding:12px}.sql-keyword{color:#c792ea;font-weight:600}.sql-string{color:#c3e88d}.sql-number{color:#f78c6c}.sql-comment{color:var(--text-muted);font-style:italic}.loading-indicator{display:flex;align-items:center;gap:12px;color:var(--text-secondary)}.loading-dots{display:flex;gap:4px}.loading-dots span{width:8px;height:8px;background:var(--accent-primary);border-radius:50%;animation:bounce 1.4s infinite ease-in-out both}.loading-dots span:nth-child(1){animation-delay:-.32s}.loading-dots span:nth-child(2){animation-delay:-.16s}.loading-dots span:nth-child(3){animation-delay:0}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.error-content{color:var(--error)}.error-header{display:flex;align-items:center;gap:8px;font-weight:600;margin-bottom:8px}.error-icon{width:20px;height:20px}.error-message{color:var(--text-secondary);margin-bottom:12px}.error-suggestion{background:#ef44441a;border:1px solid rgba(239,68,68,.2);border-radius:var(--radius-sm);padding:12px;font-size:.875rem}.warning-banner{display:flex;align-items:center;gap:8px;padding:12px;background:#f59e0b1a;border:1px solid rgba(245,158,11,.2);border-radius:var(--radius-sm);color:var(--warning);font-size:.875rem;margin-bottom:16px}.warning-banner svg{width:20px;height:20px;flex-shrink:0}.response-content{display:flex;flex-direction:column;gap:16px}.response-section h4{font-size:.875rem;font-weight:600;margin-bottom:8px;color:var(--text-primary)}.analysis-section{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-sm);overflow:hidden}.analysis-section summary{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;cursor:pointer;font-weight:500;-webkit-user-select:none;user-select:none;transition:background .2s ease}.analysis-section summary:hover{background:var(--bg-tertiary)}.analysis-section summary::-webkit-details-marker{display:none}.analysis-section .chevron{width:20px;height:20px;transition:transform .2s ease}.analysis-section[open] .chevron{transform:rotate(180deg)}.analysis-content{padding:16px;border-top:1px solid var(--border-color);font-size:.875rem;color:var(--text-secondary);white-space:pre-wrap}.retry-info{font-size:.75rem;color:var(--text-muted);font-style:italic}.input-container{padding:16px 24px 24px;background:var(--bg-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--border-color)}.input-wrapper{display:flex;gap:12px;align-items:flex-end;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:12px 16px;transition:all .2s ease}.input-wrapper:focus-within{border-color:var(--accent-primary);box-shadow:var(--shadow-glow)}.query-textarea{flex:1;background:transparent;border:none;color:var(--text-primary);font-family:var(--font-mono);font-size:.9rem;line-height:1.5;resize:none;min-height:24px;max-height:200px}.query-textarea::placeholder{color:var(--text-muted)}.query-textarea:focus{outline:none}.query-textarea:disabled{opacity:.5}.send-button{width:40px;height:40px;background:var(--accent-gradient);border:none;border-radius:var(--radius-md);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease;flex-shrink:0}.send-button:hover:not(:disabled){transform:scale(1.05);box-shadow:var(--shadow-glow)}.send-button:active:not(:disabled){transform:scale(.95)}.send-button:disabled{opacity:.5;cursor:not-allowed}.send-button svg{width:20px;height:20px}.loading-spinner{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.input-hint{text-align:center;font-size:.75rem;color:var(--text-muted);margin-top:8px}.input-hint kbd{padding:2px 6px;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:4px;font-family:var(--font-mono);font-size:.7rem}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@media(max-width:768px){.header-content{flex-direction:column;align-items:flex-start}.logo h1{font-size:1.1rem}.welcome-icon{width:60px;height:60px;padding:14px}.welcome-screen h2{font-size:1.5rem}.chat-container{padding:16px}.input-container{padding:12px 16px 20px}}