.chat-header{padding:16px;background-color:var(--primary-color);color:#fff;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.1);border-top:4px solid}.header-content{flex:1}.role-indicator{display:flex;align-items:center;gap:12px}.role-icon{font-size:32px;line-height:1}.role-text{flex:1}.chat-title{font-size:18px;font-weight:600;margin:0 0 4px}.chat-subtitle{font-size:13px;margin:0;opacity:.9}.header-actions{display:flex;gap:8px}.header-button{background:#ffffff1a;color:#fff;border:none;padding:8px 12px;border-radius:6px;font-size:14px;transition:background .2s}.header-button:hover{background:#fff3}.header-button svg{display:block;stroke-width:2}.language-toggle{font-weight:500}.message{margin-bottom:12px;display:flex}.user-message{justify-content:flex-end}.bot-message{justify-content:flex-start}.message-bubble{max-width:75%;padding:10px 14px;border-radius:12px;word-wrap:break-word}.user-message .message-bubble{background-color:var(--primary-color);color:#fff;border-bottom-right-radius:4px}[dir=rtl] .user-message .message-bubble{border-bottom-right-radius:12px;border-bottom-left-radius:4px}.bot-message .message-bubble{background-color:#fff;color:var(--text-primary);border:1px solid var(--border);border-bottom-left-radius:4px}[dir=rtl] .bot-message .message-bubble{border-bottom-left-radius:12px;border-bottom-right-radius:4px}.error-message .message-bubble{background-color:#fef2f2;border-color:var(--error);color:var(--error)}.message-bubble p{margin:0;line-height:1.5}.message-bubble h1,.message-bubble h2,.message-bubble h3{margin:8px 0 4px;font-size:1em;font-weight:600}.message-bubble ul,.message-bubble ol{margin:4px 0;padding-left:20px}[dir=rtl] .message-bubble ul,[dir=rtl] .message-bubble ol{padding-left:0;padding-right:20px}.message-bubble li{margin:2px 0}.message-time{display:block;font-size:10px;opacity:.6;margin-top:4px;text-align:right}[dir=rtl] .message-time{text-align:left}.chat-input-form{display:flex;gap:8px;padding:16px;background-color:var(--background);border-top:1px solid var(--border)}.chat-input{flex:1;padding:10px 14px;border:1px solid var(--border);border-radius:8px;font-size:14px;line-height:1.5;max-height:120px;overflow-y:auto}.chat-input:focus{outline:none;border-color:var(--primary-color)}.chat-input:disabled{background-color:var(--surface);cursor:not-allowed}.send-button{padding:10px 20px;background-color:var(--primary-color);color:#fff;border-radius:8px;font-weight:500;font-size:14px;transition:background-color .2s}.send-button:hover:not(:disabled){background-color:var(--primary-hover)}.send-button:disabled{background-color:var(--secondary-color)}.loading-indicator{display:flex;align-items:center;gap:8px;padding:10px 14px}.loading-dots{display:flex;gap:4px}.dot{width:8px;height:8px;border-radius:50%;background-color:var(--secondary-color);animation:bounce 1.4s infinite ease-in-out both}.dot:nth-child(1){animation-delay:-.32s}.dot:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0);opacity:.5}40%{transform:scale(1);opacity:1}}.loading-text{font-size:13px;color:var(--text-secondary)}.chat-window{position:relative;width:100%;height:100vh;background-color:var(--background);display:flex;flex-direction:column;overflow:hidden}@keyframes slideIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.chat-messages{flex:1;overflow-y:auto;padding:16px;background-color:var(--surface);scroll-behavior:smooth}.chat-messages::-webkit-scrollbar{width:6px}.chat-messages::-webkit-scrollbar-track{background:transparent}.chat-messages::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.chat-messages::-webkit-scrollbar-thumb:hover{background:var(--secondary-color)}.welcome-message{text-align:center;padding:32px 16px;color:var(--text-secondary)}@media (max-width: 768px){.chat-window{width:100%;height:100vh}}.role-selection-container{display:flex;align-items:center;justify-content:center;min-height:100vh;background:#fff;padding:2rem}.role-selection-content{max-width:1200px;width:100%}.role-selection-header{text-align:center;margin-bottom:3rem;color:#0f172a}.role-selection-title{font-size:2.5rem;font-weight:700;margin-bottom:1rem;text-shadow:0 2px 4px rgba(0,0,0,.1)}.role-selection-subtitle{font-size:1.25rem;opacity:.95;max-width:600px;margin:0 auto}.role-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-bottom:2rem}.role-card{background:#fff;border-radius:1rem;padding:2.5rem 2rem;cursor:pointer;border:3px solid transparent;transition:all .3s ease;text-align:center;position:relative;overflow:hidden;box-shadow:0 10px 30px #0003}.role-card:hover{transform:translateY(-8px);border-color:var(--role-color);box-shadow:0 15px 40px #0000004d}.role-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--role-color);transform:scaleX(0);transition:transform .3s ease}.role-card:hover:before{transform:scaleX(1)}.role-icon{font-size:4rem;margin-bottom:1rem;animation:bounce 2s infinite}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.role-card:hover .role-icon{animation:none;transform:scale(1.1)}.role-title{font-size:1.75rem;font-weight:700;color:#1f2937;margin-bottom:.75rem}.role-description{font-size:1rem;color:#6b7280;line-height:1.6;margin-bottom:1rem}.role-arrow{font-size:1.5rem;color:var(--role-color);opacity:0;transform:translate(-10px);transition:all .3s ease}.role-card:hover .role-arrow{opacity:1;transform:translate(0)}.role-selection-footer{text-align:center;color:#475569;opacity:.9}.role-footer-text{font-size:.95rem}[dir=rtl] .role-arrow{transform:translate(10px) rotate(180deg)}[dir=rtl] .role-card:hover .role-arrow{transform:translate(0) rotate(180deg)}@media (max-width: 768px){.role-selection-title{font-size:2rem}.role-selection-subtitle{font-size:1.1rem}.role-cards{grid-template-columns:1fr;gap:1.5rem}.role-card{padding:2rem 1.5rem}.role-icon{font-size:3rem}.role-title{font-size:1.5rem}}.app{width:100%;height:100vh;position:relative;overflow:hidden}:root{--primary-color: #2563eb;--primary-hover: #1d4ed8;--secondary-color: #64748b;--background: #ffffff;--surface: #f8fafc;--border: #e2e8f0;--text-primary: #0f172a;--text-secondary: #475569;--error: #dc2626;--success: #16a34a;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1);font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.5;font-weight:400;color-scheme:light}[dir=rtl]{font-family:Segoe UI,Arabic UI Text,Tahoma,sans-serif}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;display:flex;min-width:320px;min-height:100vh;background-color:var(--background);color:var(--text-primary)}#root{width:100%;height:100vh}button{cursor:pointer;border:none;outline:none;font-family:inherit}button:disabled{cursor:not-allowed;opacity:.6}textarea{font-family:inherit;resize:none}