:root{--font-body:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;--font-display:"Outfit", var(--font-body);--bg-app:#090b11;--bg-surface:#111622a6;--bg-surface-hover:#1a2032d9;--bg-sidebar:#0d111ccc;--border-glass:#ffffff14;--border-focus:#6366f180;--color-primary:#6366f1;--color-primary-dark:#4f46e5;--color-primary-light:#818cf8;--color-accent:#10b981;--color-accent-light:#34d399;--text-primary:#f3f4f6;--text-secondary:#9ca3af;--text-muted:#6b7280;--shadow-premium:0 8px 32px 0 #0000005e;--blur-glass:16px;--radius-lg:16px;--radius-md:12px;--radius-sm:8px;--transition-smooth:all .3s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}html,body{overscroll-behavior:none;width:100%;height:100dvh;margin:0;padding:0;overflow:hidden}body{font-family:var(--font-body);background-color:var(--bg-app);color:var(--text-primary);-webkit-font-smoothing:antialiased;position:fixed;top:0;left:0}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);letter-spacing:-.02em;font-weight:600}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:#ffffff05}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#ffffff40}@keyframes pulse-ring{0%{transform:scale(.33)}80%,to{opacity:0}}@keyframes pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.7;transform:scale(.85)}}@keyframes slide-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.glass{background:var(--bg-surface);-webkit-backdrop-filter:blur(var(--blur-glass));border:1px solid var(--border-glass)}.app-container{background-color:var(--bg-app);overscroll-behavior:none;grid-template-columns:320px minmax(0,1fr);width:100%;height:100dvh;display:grid;position:relative;overflow:hidden}.sidebar{background:var(--bg-sidebar);border-right:1px solid var(--border-glass);flex-direction:column;height:100%;display:flex;overflow:hidden}.sidebar-header{padding:calc(24px + env(safe-area-inset-top,0px)) 20px 24px 20px;border-bottom:1px solid var(--border-glass)}.sidebar-header h1{background:linear-gradient(135deg,#a5b4fc,#6366f1);-webkit-text-fill-color:transparent;-webkit-background-clip:text;align-items:center;gap:10px;margin-bottom:12px;font-size:1.5rem;font-weight:700;display:flex}.connection-banner{border-radius:var(--radius-md);transition:var(--transition-smooth);justify-content:space-between;align-items:center;padding:10px 14px;font-size:.85rem;font-weight:500;display:flex}.connection-banner.connected{color:var(--color-accent-light);background:#10b98126;border:1px solid #10b9814d}.connection-banner.disconnected{color:#f87171;background:#ef444426;border:1px solid #ef44444d}.connection-banner.connecting,.connection-banner.qrcode{color:#fbbf24;background:#f59e0b26;border:1px solid #f59e0b4d}.status-indicator{align-items:center;gap:8px;display:flex}.status-dot{border-radius:50%;width:8px;height:8px;position:relative}.connected .status-dot{background-color:var(--color-accent)}.disconnected .status-dot{background-color:#ef4444}.connecting .status-dot,.qrcode .status-dot{background-color:#f59e0b}.connecting .status-dot:after,.qrcode .status-dot:after{content:"";border:2px solid #f59e0b;border-radius:50%;width:16px;height:16px;animation:1.5s ease-out infinite pulse-ring;position:absolute;top:-4px;left:-4px}.status-dot-active{animation:2s ease-in-out infinite pulse-dot}.search-box{border-bottom:1px solid var(--border-glass);padding:16px 20px}.search-input-wrapper{width:100%;position:relative}.search-input-wrapper svg{color:var(--text-muted);position:absolute;top:50%;left:12px;transform:translateY(-50%)}.search-input{border:1px solid var(--border-glass);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);transition:var(--transition-smooth);background:#ffffff0a;padding:10px 12px 10px 38px;font-size:.9rem}.search-input:focus{border-color:var(--border-focus);background:#ffffff14;outline:none}.chats-list-container{overscroll-behavior-y:contain;flex-direction:column;flex:1;gap:4px;padding:8px;display:flex;overflow-y:auto}.chat-item{border-radius:var(--radius-md);cursor:pointer;transition:var(--transition-smooth);border:1px solid #0000;grid-template-columns:48px 1fr auto;align-items:center;gap:12px;padding:12px;display:grid}.chat-item:hover{background:var(--bg-surface-hover);border-color:var(--border-glass)}.chat-item.active{background:#6366f11f;border-color:#6366f14d}.chat-avatar{color:#fff;background:linear-gradient(135deg,#4f46e5,#818cf8);border:1px solid #ffffff1a;border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;font-size:1rem;font-weight:600;display:flex;box-shadow:0 4px 10px #00000026}.chat-info{flex-direction:column;gap:4px;display:flex;overflow:hidden}.chat-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:.95rem;font-weight:600;overflow:hidden}.chat-preview{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;font-size:.82rem;overflow:hidden}.chat-meta{flex-direction:column;align-items:flex-end;gap:6px;display:flex}.chat-time{color:var(--text-muted);font-size:.75rem}.unread-badge{background-color:var(--color-primary);color:#fff;text-align:center;border-radius:10px;min-width:18px;padding:2px 6px;font-size:.75rem;font-weight:700}.no-chats{text-align:center;color:var(--text-muted);padding:40px 20px;font-size:.9rem}.sidebar-footer{padding:16px 16px calc(16px + env(safe-area-inset-bottom,0px)) 16px;border-top:1px solid var(--border-glass)}.settings-btn{border:1px solid var(--border-glass);border-radius:var(--radius-md);width:100%;color:var(--text-primary);cursor:pointer;transition:var(--transition-smooth);background:#ffffff0a;justify-content:center;align-items:center;gap:8px;padding:12px;font-size:.9rem;font-weight:500;display:flex}.settings-btn:hover{background:var(--bg-surface-hover);border-color:var(--border-focus)}.chat-window{background:radial-gradient(circle at 100% 0,#6366f10d,#0000 60%);flex-direction:column;height:100%;min-height:0;display:flex;overflow:hidden}.chat-welcome{height:100%;color:var(--text-secondary);text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:40px;animation:.5s ease-out fade-in;display:flex}.welcome-logo{color:var(--color-primary-light);background:#6366f11a;border:1px solid #6366f133;border-radius:50%;justify-content:center;align-items:center;width:100px;height:100px;margin-bottom:20px;font-size:4rem;display:flex}.chat-welcome h2{color:var(--text-primary);margin-bottom:10px;font-size:1.8rem}.chat-welcome p{max-width:400px;color:var(--text-muted);line-height:1.5}.chat-header{padding:calc(18px + env(safe-area-inset-top,0px)) 24px 18px 24px;border-bottom:1px solid var(--border-glass);background:#0d111c66;justify-content:space-between;align-items:center;display:flex}.chat-header-info{align-items:center;gap:14px;min-width:0;display:flex}.chat-header-text h3{color:var(--text-primary);font-size:1.1rem}.chat-header-text span{color:var(--text-secondary);font-size:.8rem}.messages-container{overscroll-behavior-y:contain;background-image:radial-gradient(#ffffff04 1px,#0000 1px);background-size:20px 20px;flex-direction:column;flex:1;gap:16px;padding:24px;display:flex;overflow-y:auto}.message-wrapper{width:100%;display:flex}.message-wrapper.me{justify-content:flex-end}.message-wrapper.other{justify-content:flex-start}.message-bubble{border-radius:var(--radius-md);word-break:break-word;max-width:60%;padding:12px 16px;font-size:.95rem;line-height:1.45;animation:.2s cubic-bezier(.4,0,.2,1) slide-in;position:relative;box-shadow:0 2px 8px #00000026}.message-wrapper.me .message-bubble{background:linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));color:#fff;border:1px solid #ffffff1a;border-bottom-right-radius:4px}.message-wrapper.other .message-bubble{background:var(--bg-surface);border:1px solid var(--border-glass);color:var(--text-primary);border-bottom-left-radius:4px}.message-footer{justify-content:flex-end;align-items:center;gap:6px;margin-top:6px;font-size:.72rem;display:flex}.message-wrapper.me .message-footer{color:#ffffffb3}.message-wrapper.other .message-footer{color:var(--text-muted)}.message-status{align-items:center;display:flex}.input-bar-container{padding:20px 24px calc(20px + env(safe-area-inset-bottom,0px)) 24px;border-top:1px solid var(--border-glass);background:#0d111c66}.input-form{grid-template-columns:1fr 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32px);max-width:520px;box-shadow:var(--shadow-premium);color:var(--text-primary);background:#0f1322;margin:auto;padding:0;animation:.3s cubic-bezier(.4,0,.2,1) slide-in;overflow:hidden}dialog::backdrop{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background-color:#000000a6}.dialog-header{border-bottom:1px solid var(--border-glass);justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.dialog-header h2{color:var(--text-primary);font-size:1.3rem}.close-dialog-btn{color:var(--text-secondary);cursor:pointer;transition:var(--transition-smooth);background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:6px;display:flex}.close-dialog-btn:hover{color:var(--text-primary);background:#ffffff0d}.dialog-body{max-height:75vh;padding:24px;overflow-y:auto}.dialog-section{margin-bottom:24px}.dialog-section 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100%);justify-content:center;align-items:center;width:100vw;height:100vh;display:flex;position:relative}.login-card{border-radius:var(--radius-lg);width:100%;max-width:400px;box-shadow:var(--shadow-premium);flex-direction:column;gap:24px;padding:40px;animation:.5s ease-out slide-in;display:flex}.login-header{text-align:center;flex-direction:column;align-items:center;gap:12px;display:flex}.login-logo{color:#fff;background:linear-gradient(135deg,#6366f1,#4f46e5);border-radius:50%;justify-content:center;align-items:center;width:60px;height:60px;display:flex;box-shadow:0 8px 20px #6366f166}.login-header h2{background:linear-gradient(135deg,#a5b4fc,#6366f1);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:1.8rem}.login-header p{color:var(--text-secondary);font-size:.9rem}.login-error{color:#f87171;border-radius:var(--radius-sm);background:#ef444426;border:1px solid #ef44444d;align-items:center;gap:8px;padding:12px;font-size:.85rem;display:flex}.logout-btn{color:var(--text-secondary);cursor:pointer;transition:var(--transition-smooth);border-radius:var(--radius-sm);text-align:left;background:0 0;border:none;align-items:center;gap:8px;width:100%;padding:10px 14px;font-size:.9rem;font-weight:500;display:flex}.logout-btn:hover{color:#ef4444;background:#ef44441a}.mobile-back-btn{color:var(--text-primary);cursor:pointer;transition:var(--transition-smooth);background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;margin-right:8px;padding:8px;display:none}.mobile-back-btn:hover{background:#ffffff14}.chat-header-text{flex-direction:column;min-width:0;display:flex}.chat-header-text h3,.chat-header-text span{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}@media (width<=768px){.app-container{flex-direction:row;width:100%;height:100dvh;display:flex;position:fixed;top:0;left:0;overflow:hidden}.sidebar{border-right:none;flex-shrink:0;width:100%;height:100%;min-height:0;transition:margin-left .3s cubic-bezier(.4,0,.2,1)}.chat-window{flex-shrink:0;width:100%;height:100%;min-height:0;transition:visibility,opacity .3s}.app-container.has-active-chat .sidebar{margin-left:-100%}.app-container:not(.has-active-chat) .chat-window{visibility:hidden;pointer-events:none}.app-container.has-active-chat .chat-window{visibility:visible;pointer-events:auto}.mobile-back-btn{display:flex}.chat-header{padding:calc(12px + env(safe-area-inset-top,0px)) 16px 12px 16px}.messages-container{padding:16px}.message-bubble{max-width:85%}.input-bar-container{padding:12px 16px calc(12px + env(safe-area-inset-bottom,0px)) 16px}.message-input{padding:12px 16px;font-size:.9rem}.send-btn{width:44px;height:44px}}@media (width<=480px){.login-card{gap:16px;margin:16px;padding:24px 16px}.login-header h2{font-size:1.5rem}.dialog-body{padding:16px}.qr-image-wrapper img{max-width:160px;height:160px}}