.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{background:#fff;width:100%;max-width:480px;border-radius:16px;padding:2rem;box-shadow:0 20px 60px #0000004d;animation:slideUp .3s ease-out;margin:1rem}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.title{margin:0 0 .75rem;font-size:1.5rem;font-weight:600;color:#1a202c;line-height:1.3}.description{margin:0 0 1.5rem;color:#64748b;font-size:.95rem;line-height:1.5}.form{display:flex;flex-direction:column;gap:1rem}.input{width:100%;padding:.875rem 1rem;font-size:1rem;border:2px solid #e2e8f0;border-radius:10px;transition:all .2s ease;box-sizing:border-box;font-family:inherit}.input:focus{outline:none;border-color:#2563eb;box-shadow:0 0 0 3px #2563eb1a}.input:disabled{background-color:#f1f5f9;cursor:not-allowed;opacity:.6}.input::placeholder{color:#94a3b8}.error{color:#dc2626;font-size:.875rem;margin:-.5rem 0 0;padding:.5rem .75rem;background-color:#fef2f2;border-radius:6px;border:1px solid #fecaca}.actions{display:flex;gap:.75rem;justify-content:flex-end;margin-top:.5rem}.button{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;border-radius:10px;padding:.875rem 1.75rem;font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s ease;font-family:inherit;min-width:120px}.button:disabled{cursor:not-allowed;opacity:.6}.button.primary{background:#2563eb;color:#fff}.button.primary:hover:not(:disabled){background:#1d4ed8;transform:translateY(-1px);box-shadow:0 4px 12px #2563eb4d}.button.primary:active:not(:disabled){transform:translateY(0)}.button.secondary{background:#e5e7eb;color:#111827}.button.secondary:hover:not(:disabled){background:#d1d5db}.app{display:flex;flex-direction:column;min-height:100vh}.app-header{background-color:var(--primary-color);color:#fff;padding:1rem;text-align:center;box-shadow:0 2px 4px #0000001a}.app-main{flex:1;padding:1rem;max-width:1200px;margin:0 auto;width:100%}.app-footer{background-color:var(--light-gray);color:var(--dark-gray);text-align:center;padding:1rem;margin-top:auto}.chat-container{display:flex;flex-direction:column;height:80vh;max-height:800px;background-color:#fff;border-radius:8px;box-shadow:0 2px 10px #0000001a;overflow:hidden}.chat-header{background-color:var(--secondary-color);color:#fff;padding:.75rem 1rem;border-bottom:1px solid var(--light-gray)}.message-list{flex:1;overflow-y:auto;padding:1rem;display:flex;flex-direction:column;gap:1rem}.message-item{display:flex;margin-bottom:1rem}.user-message{justify-content:flex-end}.message-content{max-width:70%;padding:.75rem 1rem;border-radius:8px;box-shadow:0 1px 2px #0000001a}.user-message .message-content{background-color:var(--user-message-bg);border-bottom-right-radius:2px}.assistant-message .message-content{background-color:var(--assistant-message-bg);border-bottom-left-radius:2px}.message-header{display:flex;justify-content:space-between;margin-bottom:.25rem;font-size:.8rem;color:var(--dark-gray)}.message-role{font-weight:700}.message-text{word-break:break-word;line-height:1.5}.message-text strong{font-weight:600;color:var(--primary-color)}.message-text .sources-section{margin-top:1rem;padding-top:.5rem;border-top:1px solid var(--light-gray)}.message-text .bullet-point{margin-left:20px;margin-bottom:4px;position:relative}.message-text .numbered-list{margin-left:20px;margin-bottom:4px}.message-input-form{display:flex;padding:1rem;border-top:1px solid var(--light-gray);background-color:#fff}.message-input{flex:1;padding:.75rem;border:1px solid var(--light-gray);border-radius:4px;resize:none;font-family:inherit;font-size:1rem}.message-input:focus{outline:none;border-color:var(--accent-color)}.send-button{margin-left:.5rem;padding:.5rem 1rem;background-color:var(--accent-color);color:#fff;border:none;border-radius:4px;cursor:pointer;font-weight:700;transition:background-color .2s}.send-button:hover:not(:disabled){background-color:var(--primary-color)}.send-button:disabled{background-color:var(--light-gray);cursor:not-allowed}.loading-indicator{padding:.5rem;text-align:center;color:var(--dark-gray);font-style:italic}.error-message{padding:.75rem;margin:.5rem 1rem;background-color:#ffebee;color:var(--error-color);border-radius:4px;border-left:4px solid var(--error-color)}:root{--primary-color: #4a6fa5;--secondary-color: #6b8cae;--accent-color: #5d93e1;--text-color: #333;--bg-color: #f5f7fa;--light-gray: #e1e5eb;--dark-gray: #666;--user-message-bg: #e3f2fd;--assistant-message-bg: #f1f1f1;--error-color: #d32f2f;--success-color: #388e3c}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background-color:var(--bg-color);color:var(--text-color);line-height:1.6}#root{display:flex;flex-direction:column;min-height:100vh}