@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&display=swap";:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--sidebar-gradient: linear-gradient(180deg, #2c3e50 0%, #000000 100%);--glass-bg: rgba(255, 255, 255, .1);--glass-border: rgba(255, 255, 255, .18);--text-primary: #ffffff;--text-secondary: rgba(255, 255, 255, .7);--accent-color: #ffd700;--bubble-user: rgba(118, 75, 162, .8);--bubble-bot: rgba(255, 255, 255, .15)}*{margin:0;padding:0;box-sizing:border-box;font-family:Inter,sans-serif}body{background:var(--primary-gradient);height:100vh;display:flex;align-items:center;justify-content:center;overflow:hidden}#root{width:100%;height:100%;display:flex;align-items:center;justify-content:center}.app-container{max-width:900px;height:100vh;background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);box-shadow:0 8px 32px #1f26875e;display:flex;flex-direction:column;overflow:hidden;position:relative}.chat-header{padding:20px 30px;border-bottom:1px solid var(--glass-border);display:flex;align-items:center;justify-content:space-between}.chat-header h1{font-size:1.5rem;font-weight:600;color:var(--text-primary);letter-spacing:-.5px}.status-indicator{display:flex;align-items:center;font-size:.8rem;color:var(--text-secondary)}.status-dot{width:8px;height:8px;background-color:#4ade80;border-radius:50%;margin-right:8px;box-shadow:0 0 10px #4ade80}.messages-container{flex:1;padding:20px;overflow-y:auto;display:flex;flex-direction:column;gap:16px;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.2) transparent}.messages-container::-webkit-scrollbar{width:6px}.messages-container::-webkit-scrollbar-thumb{background-color:#fff3;border-radius:10px}.message{max-width:80%;padding:12px 18px;border-radius:18px;font-size:.95rem;line-height:1.5;position:relative;white-space:pre-wrap;animation:fadeIn .3s ease-out forwards}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message.user{align-self:flex-end;background:var(--bubble-user);color:#fff;border-bottom-right-radius:4px}.message.bot{align-self:flex-start;background:var(--bubble-bot);color:var(--text-primary);border-bottom-left-radius:4px;border:1px solid var(--glass-border)}.message-time{font-size:.7rem;color:var(--text-secondary);margin-top:4px;display:block}.translation-section{margin-top:8px;border-top:1px solid rgba(255,255,255,.1);padding-top:8px}.translation-toggle{background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:var(--text-secondary);font-size:1rem;width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);margin-left:8px;vertical-align:middle;box-shadow:0 2px 8px #0000001a}.translation-toggle:hover{background:#fff3;transform:scale(1.1);border-color:#fff6}.translation-toggle:active{transform:scale(.95)}.korean-text{font-size:.9rem;color:var(--text-primary);background:#ffffff0d;padding:8px;border-radius:8px;border-left:3px solid var(--accent-color);animation:fadeIn .3s ease-out}.input-area{padding:20px 30px;border-top:1px solid var(--glass-border);display:flex;gap:12px;align-items:center}.input-wrapper{flex:1;position:relative}input{width:100%;padding:14px 20px;background:#ffffff0d;border:1px solid var(--glass-border);border-radius:14px;color:#fff;font-size:.95rem;outline:none;transition:all .2s}input:focus{background:#ffffff1a;border-color:#fff6}input::placeholder{color:#ffffff4d}.send-button{background:#fff;color:#764ba2;border:none;padding:12px 24px;border-radius:14px;font-weight:600;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:8px}.send-button:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0003}.send-button:active{transform:translateY(0)}.send-button:disabled{opacity:.5;cursor:not-allowed;transform:none}.typing-indicator{font-size:.8rem;color:var(--text-secondary);margin-bottom:8px;padding-left:20px;height:20px}.auth-container{width:100%;height:100%;display:flex;align-items:center;justify-content:center;padding:20px}.auth-card{width:100%;max-width:400px;background:#ffffff0d;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--glass-border);border-radius:24px;padding:40px;display:flex;flex-direction:column;gap:24px;box-shadow:0 12px 40px #0003}.auth-card h2{color:#fff;font-size:2rem;font-weight:700;text-align:center;margin-bottom:8px}.auth-card p{color:var(--text-secondary);text-align:center;font-size:.9rem}.auth-form{display:flex;flex-direction:column;gap:16px}.form-group{display:flex;flex-direction:column;gap:8px}.form-group label{color:var(--text-secondary);font-size:.85rem;margin-left:4px}.auth-footer{text-align:center;margin-top:16px;font-size:.9rem;color:var(--text-secondary)}.auth-footer button{background:none;border:none;color:#fff;font-weight:600;cursor:pointer;margin-left:8px;text-decoration:underline}.logout-button{background:#ffffff1a;color:#fff;border:1px solid var(--glass-border);padding:6px 12px;border-radius:10px;font-size:.8rem;cursor:pointer;transition:all .2s}.logout-button:hover{background:#f003;border-color:#ff00004d}.error-message{background:#ff475726;color:#ff4757;padding:12px;border-radius:10px;font-size:.85rem;text-align:center;border:1px solid rgba(255,71,87,.3)}