:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:dark;color:#ffffffde;background-color:#0f172a;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);--accent-color: #6366f1;--glass-bg: rgba(30, 41, 59, .7);--glass-border: rgba(255, 255, 255, .08)}*{box-sizing:border-box;margin:0;padding:0}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh;background-color:var(--bg-primary);background-image:radial-gradient(at 0% 0%,rgba(99,102,241,.15) 0px,transparent 50%),radial-gradient(at 100% 0%,rgba(168,85,247,.15) 0px,transparent 50%);background-attachment:fixed}#root{width:100%;height:100vh;display:flex;justify-content:center;align-items:center}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#475569}.app-container{width:100%;height:100%;max-width:1200px;max-height:90vh;margin:0 auto;display:flex;gap:20px;padding:20px}@media(max-width:768px){.app-container{padding:0;max-height:100vh;gap:0}}.sidebar{width:280px;background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:24px;padding:20px;display:flex;flex-direction:column;color:var(--text-primary);display:none}@media(min-width:850px){.sidebar{display:flex}}.chat-main{flex:1;background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:24px;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 25px 50px -12px #00000080;position:relative}@media(max-width:768px){.chat-main{border-radius:0;border:none}}.chat-header{padding:20px 24px;border-bottom:1px solid var(--glass-border);display:flex;align-items:center;justify-content:space-between;background:#1e293b66}.chat-header h1{font-size:1.25rem;font-weight:600;color:var(--text-primary);display:flex;align-items:center;gap:12px}.status-dot{width:8px;height:8px;background-color:#22c55e;border-radius:50%;box-shadow:0 0 10px #22c55e}.chat-messages{flex:1;overflow-y:auto;padding:24px;display:flex;flex-direction:column;gap:16px}.message-wrapper{display:flex;flex-direction:column;max-width:70%;gap:4px}.message-wrapper.sent{align-self:flex-end;align-items:flex-end}.message-wrapper.received{align-self:flex-start;align-items:flex-start}.message-bubble{padding:12px 18px;border-radius:18px;font-size:.95rem;line-height:1.5;position:relative;word-wrap:break-word}.message-wrapper.sent .message-bubble{background:var(--accent-gradient);color:#fff;border-bottom-right-radius:4px;box-shadow:0 4px 15px #6366f14d}.message-wrapper.received .message-bubble{background:var(--bg-tertiary);color:var(--text-primary);border-bottom-left-radius:4px;border:1px solid var(--glass-border)}.message-time{font-size:.75rem;color:var(--text-secondary);margin:0 4px}.chat-input-area{padding:20px;border-top:1px solid var(--glass-border);background:#1e293b66}.input-form{display:flex;gap:12px;background:var(--bg-secondary);padding:8px 8px 8px 16px;border-radius:16px;border:1px solid var(--glass-border);transition:border-color .2s}.input-form:focus-within{border-color:var(--accent-color)}.chat-input{flex:1;background:transparent;border:none;color:var(--text-primary);font-size:1rem;outline:none;padding:8px 0}.send-btn{background:var(--accent-gradient);border:none;width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:#fff;transition:transform .2s,box-shadow .2s}.send-btn:hover{transform:scale(1.05);box-shadow:0 0 20px #6366f166}.send-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.brand{font-size:1.5rem;font-weight:700;margin-bottom:30px;background:var(--accent-gradient);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;display:flex;align-items:center;gap:10px}.nav-item{padding:12px 16px;margin-bottom:8px;border-radius:12px;cursor:pointer;display:flex;align-items:center;gap:12px;color:var(--text-secondary);transition:all .2s}.nav-item.active,.nav-item:hover{background:#6366f11a;color:var(--accent-color)}.typing-dot{animation:typing 1.4s infinite ease-in-out both;font-size:1.5rem;line-height:10px;margin:0 1px}@keyframes typing{0%,80%,to{transform:scale(0);opacity:.5}40%{transform:scale(1);opacity:1}}.login-container{width:100%;height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:radial-gradient(circle at top right,rgba(99,102,241,.15),transparent 40%),radial-gradient(circle at bottom left,rgba(236,72,153,.15),transparent 40%)}.login-card{width:100%;max-width:420px;background:var(--glass-bg);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--glass-border);border-radius:24px;padding:40px;box-shadow:0 25px 50px -12px #00000080;animation:slideUp .6s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.login-header{text-align:center;margin-bottom:32px}.brand-icon{width:64px;height:64px;background:var(--accent-gradient);border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;color:#fff;box-shadow:0 10px 25px #6366f14d}.login-header h2{font-size:1.8rem;color:var(--text-primary);margin-bottom:8px}.login-header p{color:var(--text-secondary);font-size:.95rem}.login-form{display:flex;flex-direction:column;gap:20px}.input-group{position:relative}.input-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--text-secondary);transition:color .2s}.input-group input{width:100%;background:#0f172a99;border:1px solid var(--glass-border);border-radius:12px;padding:14px 16px 14px 48px;color:var(--text-primary);font-size:1rem;outline:none;transition:all .2s}.input-group input:focus{border-color:var(--accent-color);background:#0f172acc;box-shadow:0 0 0 4px #6366f11a}.input-group input:focus+.input-icon{color:var(--accent-color)}.login-btn{background:var(--accent-gradient);color:#fff;border:none;border-radius:12px;padding:16px;font-size:1rem;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:all .2s;margin-top:10px}.login-btn:hover{transform:translateY(-2px);box-shadow:0 10px 25px -5px #6366f166}.login-btn:disabled{opacity:.7;cursor:not-allowed;transform:none}.error-message{color:#ef4444;background:#ef44441a;padding:10px;border-radius:8px;font-size:.9rem;text-align:center;border:1px solid rgba(239,68,68,.2)}.login-footer{margin-top:24px;text-align:center;font-size:.9rem;color:var(--text-secondary)}.link{color:var(--accent-color);font-weight:600;cursor:pointer}.link:hover{text-decoration:underline}.loading-spinner{width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}