:root{--bg-primary: #0e1621;--bg-secondary: #17212b;--bg-message-in: #182533;--bg-message-out: #2b5278;--bg-input: #242f3d;--text-primary: #f5f5f5;--text-secondary: #708499;--accent: #5eb5f7;--border: #0e1621;--header-bg: #17212b;--danger: #e53935;--success: #4caf50;--hover-bg: #202b36;--active-chat-bg: #2b5278;--scrollbar-thumb: #374554;--scrollbar-track: transparent;--sat: env(safe-area-inset-top, 0px);--sab: env(safe-area-inset-bottom, 0px);--sal: env(safe-area-inset-left, 0px);--sar: env(safe-area-inset-right, 0px);--touch: 44px}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%;height:100dvh;width:100%;overflow:hidden}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overscroll-behavior:none;touch-action:manipulation}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:var(--scrollbar-track)}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:3px}.app-layout{display:flex;height:100%;width:100%}.sidebar{width:320px;min-width:320px;background:var(--bg-secondary);display:flex;flex-direction:column;border-right:1px solid var(--border);height:100%;padding-left:var(--sal)}.main-area{flex:1;display:flex;flex-direction:column;height:100%;background:var(--bg-primary);min-width:0;position:relative;padding-right:var(--sar)}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:calc(10px + var(--sat)) 16px 10px;background:var(--header-bg);border-bottom:1px solid var(--border);min-height:calc(56px + var(--sat));flex-shrink:0}.sidebar-header h1{font-size:20px;font-weight:600;color:var(--text-primary)}.connection-status{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-secondary)}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--danger);flex-shrink:0}.status-dot.connected{background:var(--success)}.header-actions{display:flex;align-items:center;gap:4px}.icon-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;min-width:var(--touch);min-height:var(--touch);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:background .15s,color .15s;font-size:18px}.icon-btn:hover,.icon-btn:active{background:var(--hover-bg);color:var(--text-primary)}.search-bar{padding:8px 12px;flex-shrink:0}.search-bar input{width:100%;padding:9px 14px;border-radius:20px;border:none;background:var(--bg-input);color:var(--text-primary);font-size:16px;outline:none}.search-bar input::placeholder{color:var(--text-secondary)}.chat-list{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch}.chat-list-item{display:flex;align-items:center;padding:10px 16px;cursor:pointer;transition:background .12s;gap:12px;min-height:64px;padding-left:max(16px,var(--sal))}.chat-list-item:hover,.chat-list-item:active{background:var(--hover-bg)}.chat-list-item.active{background:var(--active-chat-bg)}.chat-list-avatar{width:48px;height:48px;min-width:48px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:600;color:#fff;text-transform:uppercase}.chat-list-info{flex:1;min-width:0}.chat-list-top{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:3px}.chat-list-name{font-size:15px;font-weight:500;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-list-time{font-size:12px;color:var(--text-secondary);white-space:nowrap;margin-left:8px;flex-shrink:0}.chat-list-bottom{display:flex;align-items:center;justify-content:space-between;gap:8px}.chat-list-preview{font-size:14px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1;min-width:0}.unread-badge{flex-shrink:0;min-width:20px;height:20px;padding:0 6px;background:var(--accent);color:#fff;font-size:12px;font-weight:600;border-radius:10px;display:flex;align-items:center;justify-content:center;line-height:1}.chat-list-preview-voice{display:inline-flex;align-items:center;gap:4px;color:var(--text-secondary)}.chat-list-empty{display:flex;align-items:center;justify-content:center;flex:1;color:var(--text-secondary);font-size:14px;padding:40px 20px;text-align:center}.sidebar-container{position:relative;flex:1;display:flex;flex-direction:column;overflow:hidden}.fab{position:absolute;bottom:calc(20px + var(--sab));right:20px;width:54px;height:54px;border-radius:50%;background:var(--accent);color:#fff;border:none;cursor:pointer;font-size:24px;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px #00000080;transition:transform .15s,box-shadow .15s}.fab:hover{transform:scale(1.05);box-shadow:0 6px 20px #0009}.fab:active{transform:scale(.96)}.chat-header{display:flex;align-items:center;padding:calc(10px + var(--sat)) 16px 10px;background:var(--header-bg);border-bottom:1px solid var(--border);gap:12px;min-height:calc(56px + var(--sat));flex-shrink:0}.chat-header-avatar{width:40px;height:40px;min-width:40px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;color:#fff;text-transform:uppercase}.chat-header-info{flex:1;min-width:0}.chat-header-name{font-size:15px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-header-status{font-size:13px;color:var(--text-secondary)}.chat-header-status.online{color:var(--success)}.chat-header-back{display:none;background:none;border:none;color:var(--text-secondary);cursor:pointer;min-width:var(--touch);min-height:var(--touch);border-radius:50%;align-items:center;justify-content:center;flex-shrink:0;transition:background .12s}.chat-header-back:hover{background:var(--hover-bg);color:var(--text-primary)}.chat-header-back:active{background:var(--hover-bg)}.messages-area{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:8px 0;display:flex;flex-direction:column;overscroll-behavior:contain}.messages-container{max-width:768px;width:100%;margin:0 auto;padding:0 12px;flex:1;display:flex;flex-direction:column;justify-content:flex-end}.date-separator{text-align:center;padding:8px 0}.date-separator span{background:#0000004d;color:var(--text-secondary);font-size:12px;padding:4px 12px;border-radius:12px}.message-row{display:flex;margin-bottom:2px;animation:messageAppear .18s ease-out}@keyframes messageAppear{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.message-row.sent{justify-content:flex-end}.message-row.received{justify-content:flex-start}.message-bubble{max-width:72%;padding:7px 12px 6px;border-radius:14px;position:relative;word-wrap:break-word;overflow-wrap:break-word}.message-row.sent .message-bubble{background:var(--bg-message-out);border-bottom-right-radius:4px}.message-row.received .message-bubble{background:var(--bg-message-in);border-bottom-left-radius:4px}.message-text{font-size:15px;line-height:1.45;color:var(--text-primary);white-space:pre-wrap}.message-meta{display:flex;align-items:center;justify-content:flex-end;gap:4px;margin-top:2px}.message-time{font-size:11px;color:#ffffff73}.message-status{font-size:11px;color:#ffffff73;letter-spacing:-1px}.message-status.read{color:var(--accent)}.scroll-to-bottom-btn{position:absolute;bottom:calc(72px + var(--sab));right:16px;width:38px;height:38px;border-radius:50%;border:none;background:var(--bg-secondary);color:var(--text-secondary);box-shadow:0 2px 10px #00000073;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:10;transition:background .15s,color .15s,transform .1s;animation:fadeIn .15s ease-out}.scroll-to-bottom-btn:hover{background:var(--hover-bg);color:var(--text-primary)}.scroll-to-bottom-btn:active{transform:scale(.92)}.message-input-area{padding:8px 12px;padding-bottom:calc(8px + var(--sab));background:var(--bg-secondary);border-top:1px solid var(--border);flex-shrink:0}.message-input-container{max-width:768px;margin:0 auto;display:flex;align-items:flex-end;gap:8px}.message-input{flex:1;padding:10px 16px;border-radius:22px;border:none;background:var(--bg-input);color:var(--text-primary);font-size:16px;outline:none;resize:none;max-height:120px;line-height:1.4;font-family:inherit;min-height:44px}.message-input::placeholder{color:var(--text-secondary)}.send-btn,.mic-btn{width:var(--touch);height:var(--touch);min-width:var(--touch);border-radius:50%;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:opacity .15s,transform .1s}.send-btn{background:var(--accent);color:#fff}.send-btn:hover{opacity:.9}.send-btn:active{transform:scale(.94)}.send-btn:disabled{opacity:.35;cursor:default}.send-btn svg{width:20px;height:20px}.mic-btn{background:var(--accent);color:#fff}.mic-btn:hover{background:#4aa8f0}.mic-btn:active{transform:scale(.94)}.mic-btn svg{width:18px;height:18px}.welcome-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-secondary);gap:12px;padding:20px}.welcome-screen .welcome-icon{font-size:64px;opacity:.25;margin-bottom:8px}.welcome-screen h2{font-size:22px;font-weight:500;color:var(--text-primary)}.welcome-screen p{font-size:14px;text-align:center;max-width:320px;line-height:1.6}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000a6;display:flex;align-items:flex-end;justify-content:center;z-index:1000;animation:fadeIn .15s ease-out;padding:0 0 var(--sab)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{background:var(--bg-secondary);border-radius:16px 16px 0 0;width:100%;max-width:520px;padding:20px 20px calc(20px + var(--sab));animation:slideUp .22s ease-out}@keyframes slideUp{0%{transform:translateY(30px);opacity:0}to{transform:translateY(0);opacity:1}}.modal h2{font-size:18px;font-weight:600;margin-bottom:20px;color:var(--text-primary)}.modal-field{margin-bottom:14px}.modal-field label{display:block;font-size:13px;color:var(--text-secondary);margin-bottom:6px}.modal-field input,.modal-field textarea{width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--border);background:var(--bg-input);color:var(--text-primary);font-size:16px;outline:none;font-family:inherit;transition:border-color .15s}.modal-field input:focus,.modal-field textarea:focus{border-color:var(--accent)}.modal-field textarea{resize:vertical;min-height:70px}.modal-field .fingerprint-preview{margin-top:6px;font-size:12px;color:var(--accent);font-family:SF Mono,Fira Code,Consolas,monospace;word-break:break-all}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:20px}.btn{padding:10px 22px;min-height:var(--touch);border-radius:10px;border:none;font-size:15px;cursor:pointer;font-weight:500;transition:opacity .15s}.btn:hover{opacity:.85}.btn:active{opacity:.7}.btn:disabled{opacity:.4;cursor:default}.btn-primary{background:var(--accent);color:#fff}.btn-secondary{background:var(--bg-input);color:var(--text-primary)}.your-key-section{margin-top:16px;padding-top:16px;border-top:1px solid var(--border)}.your-key-section h3{font-size:13px;color:var(--text-secondary);margin-bottom:8px}.copy-field{display:flex;align-items:center;gap:8px}.copy-field input{flex:1;padding:9px 10px;border-radius:8px;border:1px solid var(--border);background:var(--bg-input);color:var(--text-secondary);font-size:12px;font-family:SF Mono,Fira Code,Consolas,monospace;outline:none}.copy-btn{padding:9px 14px;min-height:var(--touch);border-radius:8px;border:none;background:var(--bg-input);color:var(--accent);font-size:13px;cursor:pointer;white-space:nowrap;transition:background .15s}.copy-btn:hover{background:var(--hover-bg)}.copy-btn:active{opacity:.7}.settings-screen{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:24px 20px}.settings-screen h2{font-size:20px;font-weight:600;margin-bottom:24px}.settings-section{margin-bottom:24px}.settings-section h3{font-size:12px;color:var(--text-secondary);margin-bottom:10px;text-transform:uppercase;letter-spacing:.6px}.settings-field{background:var(--bg-input);border-radius:10px;padding:12px 14px;margin-bottom:8px}.settings-field label{display:block;font-size:12px;color:var(--text-secondary);margin-bottom:4px}.settings-field .value{font-size:13px;color:var(--text-primary);font-family:SF Mono,Fira Code,Consolas,monospace;word-break:break-all;line-height:1.4}.settings-actions{display:flex;gap:8px;flex-wrap:wrap}.settings-back{display:flex;align-items:center;gap:6px;background:none;border:none;color:var(--accent);cursor:pointer;font-size:15px;min-height:var(--touch);padding:0;margin-bottom:12px}.settings-back:hover{text-decoration:underline}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:16px;color:var(--text-secondary)}.loading-spinner{width:40px;height:40px;border:3px solid var(--bg-input);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.voice-recorder{display:flex;align-items:center;gap:10px;width:100%}.voice-recorder-cancel{width:var(--touch);height:var(--touch);border-radius:50%;border:none;background:#e5393524;color:var(--danger);cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .15s}.voice-recorder-cancel:hover{background:#e539353d}.voice-recorder-cancel:active{background:#e5393552}.voice-recorder-info{flex:1;display:flex;align-items:center;gap:8px;min-width:0}.voice-recorder-dot{width:10px;height:10px;border-radius:50%;background:var(--danger);flex-shrink:0;animation:pulse-red 1s ease-in-out infinite}@keyframes pulse-red{0%,to{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.8)}}.voice-recorder-label{font-size:14px;color:var(--text-primary)}.voice-recorder-time{font-size:14px;color:var(--danger);font-variant-numeric:tabular-nums;font-weight:500}.voice-recorder-send{width:var(--touch);height:var(--touch);border-radius:50%;border:none;background:var(--accent);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .15s}.voice-recorder-send:hover{background:#4aa8f0}.voice-recorder-send:active{transform:scale(.94)}.voice-recorder-error{flex:1;font-size:13px;color:var(--danger);line-height:1.4;white-space:pre-line}.audio-player{display:flex;align-items:center;gap:10px;min-width:190px;max-width:260px;padding:2px 0}.audio-play-btn{width:36px;height:36px;border-radius:50%;border:none;background:#ffffff24;color:var(--text-primary);cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .15s}.audio-play-btn:hover{background:#ffffff3d}.audio-play-btn:disabled{opacity:.4;cursor:default}.audio-play-btn svg{width:16px;height:16px}.audio-waveform{flex:1;display:flex;align-items:center;gap:2px;height:28px;cursor:pointer}.audio-waveform-bar{flex:1;border-radius:2px;background:#ffffff47;transition:background .1s;min-height:3px}.audio-waveform-bar.played{background:var(--accent)}.audio-time{font-size:12px;color:var(--text-secondary);font-variant-numeric:tabular-nums;white-space:nowrap;flex-shrink:0}.audio-player-unavailable{font-size:13px;color:var(--text-secondary);display:flex;align-items:center;gap:6px}.attach-btn{width:var(--touch);height:var(--touch);min-width:var(--touch);border-radius:50%;border:none;background:none;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:color .15s,background .15s}.attach-btn:hover{color:var(--text-primary);background:var(--hover-bg)}.attach-btn:active{transform:scale(.94)}.attach-btn svg{width:20px;height:20px}.message-bubble-image{padding:3px!important;overflow:hidden}.image-thumb{display:block;border-radius:11px;object-fit:cover;cursor:pointer;transition:opacity .15s}.image-thumb:hover{opacity:.88}.image-thumb-placeholder{border-radius:11px;background:#ffffff0f;animation:pulse-placeholder 1.2s ease-in-out infinite}@keyframes pulse-placeholder{0%,to{opacity:.5}50%{opacity:.25}}.message-meta-image{position:absolute;bottom:6px;right:8px;background:#0000008c;border-radius:10px;padding:1px 7px}.image-viewer-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000eb;z-index:3000;display:flex;align-items:center;justify-content:center;animation:fadeIn .15s ease-out;padding:var(--sat) var(--sar) var(--sab) var(--sal)}.image-viewer-close{position:absolute;top:calc(12px + var(--sat));right:calc(12px + var(--sar));width:var(--touch);height:var(--touch);border-radius:50%;border:none;background:#ffffff1f;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:3001;transition:background .15s}.image-viewer-close:hover{background:#ffffff38}.image-viewer-img{max-width:92vw;max-height:88vh;object-fit:contain;border-radius:4px;-webkit-user-select:none;user-select:none;-webkit-user-drag:none}.hidden-input{display:none}.error-text{color:var(--danger);font-size:13px;margin-top:4px}.toast{position:fixed;bottom:calc(24px + var(--sab));left:50%;transform:translate(-50%);background:var(--bg-input);color:var(--text-primary);padding:10px 20px;border-radius:10px;font-size:14px;z-index:2000;box-shadow:0 4px 16px #00000073;animation:slideUp .2s ease-out;white-space:nowrap}@media(max-width:768px){.sidebar{width:100%;min-width:100%;padding-left:var(--sal)}.app-layout.chat-open .sidebar{display:none}.app-layout:not(.chat-open) .main-area{display:none}.chat-header-back{display:flex}.message-bubble{max-width:86%}.modal-overlay{align-items:flex-end;padding:0}.modal{border-radius:20px 20px 0 0;padding-bottom:calc(24px + var(--sab));max-width:100%}.fab{bottom:calc(20px + var(--sab));right:16px}.messages-container{padding:0 8px}}@media(min-width:769px){.modal-overlay{align-items:center;padding:0}.modal{border-radius:14px;padding:24px;max-width:480px;width:90%}}