:root{--primary-bg: #FFF5F7;--header-bg: #ffffff;--input-bg: #ffffff;--user-bubble-bg: #E5367A;--user-bubble-text: #ffffff;--ai-bubble-bg: #FDE7F0;--ai-bubble-text: #41222F;--system-bubble-bg: #fff3cd;--system-bubble-text: #664d03;--welcome-card-bg: #ffffff;--text-primary: #331A24;--text-secondary: #8C6A7A;--border-color: #F7D0E0;--accent-color: #E5367A;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif}body{margin:0;font-family:var(--font-family);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--primary-bg);color:var(--text-primary)}*{box-sizing:border-box}#root{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:1rem}.app-container{width:100%;max-width:1152px;height:95vh;max-height:900px;border-radius:24px;box-shadow:0 10px 30px #b8557e26;position:relative;display:flex;flex-direction:column;overflow:hidden;background-color:#fdfbfc}.app-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;background-color:var(--header-bg);border-bottom:1px solid var(--border-color);flex-shrink:0}.back-button,.app-button{background-color:var(--header-bg);color:var(--accent-color);border:none;padding:.5rem 1rem;font-weight:600;font-size:1rem;border-radius:8px;cursor:pointer;transition:background-color .2s ease,transform .2s ease;text-decoration:none}.back-button:hover,.app-button:hover{background-color:var(--ai-bubble-bg);transform:scale(1.05)}.logo-container{display:flex;align-items:center;gap:.75rem}.logo-container h1{margin:0;font-size:1.25rem;font-weight:600}.chat-window{flex-grow:1;overflow-y:auto;padding:1.5rem;display:flex;flex-direction:column}.welcome-screen{text-align:center;margin:auto;padding:1rem}.welcome-screen h2{font-size:2rem;margin-bottom:.5rem}.welcome-screen p{color:var(--text-secondary);max-width:500px;margin:0 auto 2rem}.welcome-cards{display:flex;justify-content:center;gap:1.5rem;flex-wrap:wrap}.welcome-card{background:var(--welcome-card-bg);padding:1.5rem;border-radius:12px;border:1px solid var(--border-color);box-shadow:0 4px 12px #b8557e0d;width:220px;text-align:center}.welcome-card h3{margin-top:1rem;margin-bottom:.5rem;font-size:1rem}.welcome-card p{font-size:.875rem;color:var(--text-secondary);line-height:1.4;margin:0}.chat-messages{display:flex;flex-direction:column;gap:1rem}.message-container{display:flex;max-width:80%;align-items:flex-end;gap:.75rem;opacity:0;animation:fadeIn .4s forwards}@keyframes fadeIn{to{opacity:1}}.message-spacer{height:1rem;flex-shrink:0}.user-container{align-self:flex-end;flex-direction:row-reverse}.message.user{background-color:var(--user-bubble-bg);color:var(--user-bubble-text);border-radius:18px 18px 4px}.ai-container{align-self:flex-start}.message.ai{background-color:var(--ai-bubble-bg);color:var(--ai-bubble-text);border-radius:18px 18px 18px 4px}.system-container{align-self:center;max-width:90%;font-size:.875rem}.message.system{background-color:var(--system-bubble-bg);color:var(--system-bubble-text);border:1px solid #ffe69c;border-radius:8px;text-align:center}.message{padding:.75rem 1rem;line-height:1.5}.message p{margin:0}.avatar{width:40px;height:40px;border-radius:50%;background-size:cover;background-position:center;flex-shrink:0;border:2px solid var(--header-bg)}.markdown-content{font-size:1rem}.markdown-content h1,.markdown-content h2,.markdown-content h3{margin-top:1em;margin-bottom:.5em}.markdown-content ul,.markdown-content ol{padding-left:1.5rem}.markdown-content li{margin-bottom:.5rem}.typing-indicator{display:flex;align-items:center;padding:.75rem 1rem}.typing-indicator span{height:8px;width:8px;background-color:#c9a9b9;border-radius:50%;margin:0 2px;animation:bounce 1.4s infinite ease-in-out both}.typing-indicator span:nth-child(1){animation-delay:-.32s}.typing-indicator span:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.input-area{padding:1rem 1.5rem;background-color:var(--input-bg);border-top:1px solid var(--border-color);flex-shrink:0}.input-container{display:flex;align-items:center;gap:.75rem}.input-container input[type=text]{flex-grow:1;border:1px solid var(--border-color);border-radius:25px;padding:.75rem 1rem;font-size:1rem;outline:none;transition:border-color .2s}.input-container input[type=text]:focus{border-color:var(--accent-color)}.input-container input[type=text]:disabled{background-color:#f8f9fa}.upload-button input[type=file]{display:none}.upload-button,.send-button{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border:none;border-radius:50%;cursor:pointer;background-color:transparent;transition:background-color .2s,transform .2s}.upload-button:hover,.send-button:hover:not(:disabled){transform:scale(1.1)}.upload-button svg{width:24px;height:24px;fill:var(--accent-color)}.send-button svg{fill:#fff}.send-button{background-color:var(--accent-color)}.send-button:disabled{background-color:#f8b4d3;cursor:not-allowed}.progress-bar{height:4px;width:100%;background-color:#fde7f0;margin-top:.75rem;border-radius:2px;overflow:hidden}.progress-value{height:100%;width:100%;background:linear-gradient(90deg,#FAD1E3,var(--accent-color));background-size:200% 200%;animation:progressAnimation 2s linear infinite}@keyframes progressAnimation{0%{background-position:200% 0}to{background-position:-200% 0}}@media (max-width: 768px){#root{padding:0}.app-container{height:100vh;max-height:none;border-radius:0}.app-header{padding:.75rem 1rem}.logo-container h1{font-size:1.1rem}.chat-window{padding:1rem}.welcome-cards{flex-direction:column;align-items:center;gap:1rem}.welcome-card{width:100%;max-width:350px}.message-container{max-width:85%}.input-area{padding:.75rem 1rem}}@media (max-width: 480px){.logo-container h1{font-size:1rem}.message-container{max-width:90%;gap:.5rem}.avatar{width:32px;height:32px}.message{padding:.6rem .9rem}.input-container input[type=text]{padding:.6rem 1rem;font-size:.9rem}.upload-button,.send-button{width:40px;height:40px}}