:root{--bg-color: #121212;--bg-secondary: #1e1e1e;--text-primary: #f0f0f0;--text-secondary: #aaaaaa;--accent-color: #646cff;--accent-hover: #535bf2;--border-color: #333;--success-color: #4caf50;--error-color: #f44336;--font-family: "Inter", system-ui, -apple-system, sans-serif}body{margin:0;font-family:var(--font-family);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-color);background:linear-gradient(135deg,#121212 0%,#1a1a2e 100%);color:var(--text-primary);min-height:100vh}h1,h2,h3{color:var(--text-primary);font-weight:600}button{cursor:pointer;transition:all .2s ease}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-color)}::-webkit-scrollbar-thumb{background:#444;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#555}.card{background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:8px;padding:20px;box-shadow:0 4px 6px #0000004d;transition:transform .2s,box-shadow .2s}.card:hover{transform:translateY(-2px);box-shadow:0 8px 12px #0006}.btn-primary{background-color:var(--accent-color);color:#fff;border:none;border-radius:6px;padding:10px 20px;font-weight:500}.btn-primary:hover{background-color:var(--accent-hover)}.input-field{width:100%;padding:10px;background-color:#2a2a2a;border:1px solid var(--border-color);border-radius:6px;color:var(--text-primary);margin-top:5px}.input-field:focus{outline:none;border-color:var(--accent-color)}.chat-wrapper{font-family:var(--font-family);max-width:500px;margin:20px auto;background-color:var(--bg-secondary);border-radius:20px;box-shadow:0 10px 25px #00000080;overflow:hidden;display:flex;flex-direction:column;height:80vh;border:1px solid var(--border-color)}.chat-header{padding:20px;border-bottom:1px solid var(--border-color);background-color:#1e1e1ee6;text-align:center}.chat-status{font-size:.8rem;margin-top:5px;color:var(--text-secondary)}.chat-body{flex:1;padding:20px;overflow-y:auto;display:flex;flex-direction:column;gap:12px;background-color:var(--bg-color)}.message-row{display:flex;width:100%}.message-bubble{max-width:80%;padding:12px 16px;border-radius:12px;font-size:.95rem;line-height:1.4;box-shadow:0 1px 2px #0003}.msg-user{background-color:var(--accent-color);color:#fff;border-bottom-right-radius:0}.msg-assistant{background-color:#333;color:var(--text-primary);border-bottom-left-radius:0}.chat-controls{padding:20px;border-top:1px solid var(--border-color);background-color:var(--bg-secondary);text-align:center}.text-center{text-align:center}.flex-center{display:flex;justify-content:center}.debug-details{padding:10px 20px;background-color:#111;font-size:.8rem;color:var(--text-secondary);border-top:1px solid #222}