*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary:#000;--bg-secondary:#000;--bg-surface:#000;--bg-surface-hover:#0a0a0a;--border-subtle:#3b82f626;--border-strong:#3b82f64d;--border-light:#3b82f61a;--blue-800:#1e40af;--blue-700:#1d4ed8;--blue-600:#2563eb;--blue-500:#3b82f6;--blue-400:#60a5fa;--blue-300:#93c5fd;--bg-modal:#000000fa;--text-primary:#fff;--text-secondary:#ffffffd9;--text-muted:#ffffff80;--text-accent:#60a5fa;--sent-bg:#2563eb;--recv-bg:#ffffff14;--radius-sm:8px;--radius-md:14px;--radius-lg:18px;--radius-xl:24px;--radius-full:50%;--shadow-sm:0 1px 3px #0000004d;--shadow-md:0 4px 12px #0006;--shadow-lg:0 8px 30px #00000080;--transition-fast:.15s ease;--transition-normal:.25s ease;--transition-slow:.4s cubic-bezier(.16, 1, .3, 1);--safe-top:env(safe-area-inset-top,0px);--safe-bottom:env(safe-area-inset-bottom,0px);--font:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}html,body,#root{width:100%;height:100dvh;font-family:var(--font);background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-tap-highlight-color:transparent;overflow:hidden}::-webkit-scrollbar{display:none}*{scrollbar-width:none}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes msgIn{0%{opacity:0;transform:translateY(10px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes pulse{0%,to{opacity:.4}50%{opacity:1}}@keyframes typing-dot{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-4px)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes shake{10%,90%{transform:translate(-1px)}20%,80%{transform:translate(2px)}30%,50%,70%{transform:translate(-3px)}40%,60%{transform:translate(3px)}}.login-screen{background:var(--bg-primary);flex-direction:column;justify-content:center;align-items:center;height:100%;padding:24px;animation:.5s fadeIn;display:flex}.login-logo{margin-bottom:8px;font-size:48px;animation:.6s slideUp}.login-title{color:var(--text-primary);letter-spacing:-.5px;margin-bottom:4px;font-size:28px;font-weight:700;animation:.7s slideUp}.login-subtitle{color:var(--text-muted);margin-bottom:36px;font-size:14px;animation:.8s slideUp}.login-form{flex-direction:column;gap:14px;width:100%;max-width:340px;animation:.9s slideUp;display:flex}.login-input{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-md);width:100%;color:var(--text-primary);font-size:15px;font-family:var(--font);transition:border-color var(--transition-fast), box-shadow var(--transition-fast);outline:none;padding:14px 18px}.login-input:focus{border-color:var(--blue-500);box-shadow:0 0 0 3px #3b82f626}.login-input::placeholder{color:var(--text-muted)}.login-btn{background:linear-gradient(135deg, var(--blue-700), var(--blue-500));border-radius:var(--radius-md);color:#fff;width:100%;font-size:16px;font-weight:600;font-family:var(--font);cursor:pointer;transition:all var(--transition-fast);border:none;padding:14px;position:relative;overflow:hidden}.login-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 16px #3b82f659}.login-btn:active:not(:disabled){transform:scale(.98)}.login-btn:disabled{opacity:.6;cursor:not-allowed}.login-error{color:#f87171;text-align:center;font-size:13px;animation:.4s shake}.app-layout{background:var(--bg-primary);flex-direction:column;height:100%;display:flex}.chat-header{padding:12px 16px;padding-top:calc(12px + var(--safe-top));-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-light);z-index:100;background:#000000f2;align-items:center;gap:12px;min-height:64px;display:flex}.header-avatar{border-radius:var(--radius-full);background:linear-gradient(135deg, var(--blue-700), var(--blue-500));color:#fff;flex-shrink:0;justify-content:center;align-items:center;width:42px;height:42px;font-size:18px;font-weight:700;display:flex;position:relative}.header-online-dot{border-radius:var(--radius-full);border:2px solid var(--bg-secondary);background:#22c55e;width:10px;height:10px;position:absolute;bottom:1px;right:1px}.header-info{flex:1;min-width:0}.header-name{color:var(--text-primary);letter-spacing:-.2px;font-size:17px;font-weight:700}.header-status{color:var(--text-muted);align-items:center;gap:4px;font-size:12.5px;display:flex}.header-status.online{color:#22c55e}.typing-dots{align-items:center;gap:3px;display:inline-flex}.typing-dots span{border-radius:var(--radius-full);background:var(--blue-400);width:4px;height:4px;animation:1.2s infinite typing-dot}.typing-dots span:nth-child(2){animation-delay:.15s}.typing-dots span:nth-child(3){animation-delay:.3s}.header-actions{gap:4px;display:flex}.header-btn{border-radius:var(--radius-sm);width:38px;height:38px;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);background:0 0;border:none;justify-content:center;align-items:center;font-size:18px;display:flex}.header-btn:hover{background:var(--bg-surface);color:var(--text-primary)}.messages-area{-webkit-overflow-scrolling:touch;padding:20px 16px;padding-bottom:max(20px, var(--safe-bottom));background:var(--bg-primary);overscroll-behavior:contain;direction:ltr;flex-direction:column;flex:1;gap:3px;display:flex;overflow-y:auto}.messages-area.batch-loading .message{animation:none!important}.load-more-trigger{justify-content:center;min-height:48px;padding:16px;display:flex}.load-more-spinner{background-color:var(--blue-500);border-radius:50%;width:8px;height:8px;margin:0 16px;animation:.6s linear .3s infinite alternate dot-flashing;position:relative}.load-more-spinner:before,.load-more-spinner:after{content:"";background-color:var(--blue-500);border-radius:50%;width:8px;height:8px;animation:.6s infinite alternate dot-flashing;display:inline-block;position:absolute;top:0}.load-more-spinner:before{animation-delay:0s;left:-16px}.load-more-spinner:after{animation-delay:.6s;left:16px}@keyframes dot-flashing{0%{background-color:var(--blue-500);opacity:1;transform:scale(1.1);box-shadow:0 0 8px #3b82f699}50%,to{background-color:var(--border-subtle);opacity:.3;box-shadow:none;transform:scale(.8)}}.date-divider{text-align:center;margin:20px 0 12px}.date-divider span{color:var(--text-muted);border-radius:var(--radius-md);letter-spacing:.3px;border:1px solid var(--border-subtle);background:#1e3a8a33;padding:5px 16px;font-size:12px;font-weight:500}.message{flex-direction:column;max-width:80%;margin-bottom:2px;animation:.25s msgIn;display:flex}.message.sent{align-self:flex-end}.message.received{align-self:flex-start}.bubble-row{align-items:center;gap:4px;display:flex}.sent .bubble-row,.received .bubble-row{flex-direction:row}.msg-menu-btn{color:var(--text-muted);cursor:pointer;border-radius:var(--radius-full);opacity:0;background:0 0;border:none;flex-shrink:0;justify-content:center;align-items:center;padding:4px;transition:opacity .15s;display:flex}.message:hover .msg-menu-btn{opacity:.6}.msg-menu-btn:hover{background:#ffffff14;opacity:1!important}@media (hover:none){.msg-menu-btn{opacity:.4}}.bubble{word-wrap:break-word;white-space:pre-wrap;border-radius:12px;min-width:60px;padding:6px 12px 8px;font-size:15px;line-height:1.5;position:relative}.msg-text{white-space:pre-wrap;word-break:break-word;font-size:15px;line-height:1.5}.msg-link{color:#fff;text-underline-offset:3px;font-weight:600;text-decoration:underline}.msg-link:hover{color:var(--blue-300)}.sent .bubble{color:#f0f4ff;background:linear-gradient(135deg,#1e40af 0%,#2563eb 60%,#3b82f6 100%);border-top-right-radius:0;box-shadow:0 1px 4px #2563eb26}.received .bubble{background:var(--recv-bg);color:#e8ecf1;border:1px solid #ffffff0d;border-top-left-radius:0}.bubble.deleted{opacity:.5;font-style:italic}.edited-tag{color:#94a3b866;margin-left:6px;font-size:10px}.msg-content{display:inline}.msg-meta{color:#fff9;float:right;align-items:center;gap:4px;margin:8px -4px -2px 12px;display:inline-flex}.msg-time{font-size:11px;line-height:15px}.msg-check{align-items:center;display:flex}.msg-check svg{width:16px;height:15px}.msg-check.read{color:#53bdeb}.msg-check.delivered{color:#fff9}.media-bubble .msg-meta{float:none;color:#ffffffe6;background:#0006;border-radius:12px;margin:0;padding:2px 6px;position:absolute;bottom:6px;right:6px}.reply-chip{border-left:3px solid var(--blue-400);cursor:pointer;transition:background var(--transition-fast);background:#00000026;border-radius:6px;margin-bottom:4px;padding:6px 10px;font-size:13px}.reply-chip:hover{background:#00000040}.reply-chip-sender{color:var(--blue-400);margin-bottom:2px;font-size:11.5px;font-weight:600}.reply-chip-text{color:#fff9;text-overflow:ellipsis;white-space:nowrap;max-width:220px;overflow:hidden}.reactions-row{flex-wrap:wrap;gap:4px;margin-top:4px;display:flex}.reaction-badge{cursor:pointer;transition:all var(--transition-fast);background:#ffffff14;border:1px solid #ffffff0f;border-radius:12px;padding:2px 8px;font-size:14px}.reaction-badge:hover{background:#ffffff24}.reaction-badge.mine{background:#3b82f633;border-color:#3b82f64d}.bubble-image{border-radius:var(--radius-md);cursor:pointer;object-fit:cover;width:100%;max-height:320px;transition:opacity var(--transition-fast);display:block}.bubble-image:hover{opacity:.92}.media-bubble{overflow:hidden;border-radius:16px!important;padding:0!important}.media-bubble .msg-time{color:#fff;background:#0000008c;border-radius:10px;padding:2px 8px;position:absolute;bottom:8px;left:10px}.bubble a{color:#93c5fd;text-underline-offset:2px;word-break:break-all;-webkit-text-decoration:underline #93c5fd66;text-decoration:underline #93c5fd66}.sent .bubble a{color:#dbeafe}.voice-player{align-items:center;gap:12px;min-width:220px;padding:6px 2px;display:flex}.voice-play-btn{border-radius:var(--radius-full);width:40px;height:40px;color:var(--blue-400);cursor:pointer;transition:all var(--transition-fast);background:#60a5fa33;border:none;flex-shrink:0;justify-content:center;align-items:center;font-size:17px;display:flex}.voice-play-btn:hover{background:#60a5fa4d}.voice-play-btn:active{transform:scale(.92)}.voice-progress{cursor:pointer;background:#ffffff1f;border-radius:3px;flex:1;height:5px;position:relative;overflow:hidden}.voice-bar{background:linear-gradient(90deg, var(--blue-500), var(--blue-400));border-radius:3px;width:0%;height:100%;transition:width .1s linear}.voice-duration{color:var(--text-muted);text-align:right;font-variant-numeric:tabular-nums;min-width:40px;font-size:12px;font-weight:500}.input-area{padding:10px 12px;padding-bottom:max(10px, var(--safe-bottom));border-top:1px solid var(--border-light);background:#0a0f1a;flex-direction:column;align-items:stretch;gap:8px;display:flex}.reply-preview{background:var(--bg-surface);border-left:3px solid var(--blue-500);border-radius:0 var(--radius-sm) var(--radius-sm) 0;align-items:center;gap:8px;margin:0 12px;padding:8px 12px;display:flex}.reply-preview-content{flex:1;min-width:0}.reply-preview-sender{color:var(--blue-400);font-size:12px;font-weight:600}.reply-preview-text{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;font-size:13px;overflow:hidden}.reply-preview-close{border-radius:var(--radius-full);width:28px;height:28px;color:var(--text-muted);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;font-size:16px;display:flex}.input-row{align-items:center;gap:8px;width:100%;display:flex}.input-actions{gap:2px;display:flex}.input-btn{border-radius:var(--radius-full);width:42px;height:42px;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);background:0 0;border:none;flex-shrink:0;justify-content:center;align-items:center;font-size:20px;display:flex}.input-btn:hover{color:var(--text-primary)}.input-btn:active{transform:scale(.9)}.input-wrapper{flex:1;min-width:0}.message-input{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);width:100%;max-height:120px;color:var(--text-primary);font-size:15px;font-family:var(--font);resize:none;transition:border-color var(--transition-fast);outline:none;padding:10px 16px;line-height:1.5;overflow-y:auto}.message-input:focus{border-color:#3b82f633}.message-input::placeholder{color:var(--text-muted)}.send-btn{border-radius:var(--radius-full);background:linear-gradient(135deg, var(--blue-600), var(--blue-500));color:#fff;cursor:pointer;width:42px;height:42px;transition:all var(--transition-fast);border:none;flex-shrink:0;justify-content:center;align-items:center;font-size:18px;display:flex;box-shadow:0 2px 8px #3b82f64d}.send-btn:hover{transform:scale(1.05);box-shadow:0 4px 16px #3b82f666}.send-btn:active{transform:scale(.95)}.send-btn:disabled{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none}.input-area.recording{background:#ef444414;border-top-color:#ef444433}.recording-indicator{flex:1;align-items:center;gap:10px;padding:8px 0;display:flex}.rec-dot{border-radius:var(--radius-full);background:#ef4444;width:10px;height:10px;animation:1s infinite pulse}.rec-timer{color:var(--text-primary);font-variant-numeric:tabular-nums;font-size:16px;font-weight:600}.rec-cancel{color:var(--text-muted);font-size:13px}.context-menu-overlay{z-index:5000;background:#0006;animation:.15s fadeIn;position:fixed;inset:0}.context-menu{z-index:5001;background:var(--bg-surface);border:1px solid var(--border-light);border-radius:var(--radius-md);min-width:180px;box-shadow:var(--shadow-lg);animation:slideUp .2s var(--transition-slow);padding:6px;position:fixed}.context-menu-item{color:var(--text-primary);font-size:14px;font-family:var(--font);cursor:pointer;border-radius:var(--radius-sm);text-align:left;width:100%;transition:background var(--transition-fast);background:0 0;border:none;align-items:center;gap:10px;padding:10px 14px;display:flex}.context-menu-item:hover{background:var(--bg-surface-hover)}.context-menu-item.danger{color:#f87171}.reaction-picker{background:var(--bg-surface);border:1px solid var(--border-light);box-shadow:var(--shadow-lg);border-radius:30px;gap:2px;padding:6px 10px;animation:.2s slideUp;display:flex}.reaction-picker button{border-radius:var(--radius-full);cursor:pointer;width:38px;height:38px;transition:all var(--transition-fast);background:0 0;border:none;justify-content:center;align-items:center;font-size:22px;display:flex}.reaction-picker button:hover{background:var(--bg-surface-hover);transform:scale(1.2)}.lightbox-overlay{z-index:20000;padding:var(--safe-top) 0 var(--safe-bottom);cursor:pointer;background:#000000f5;justify-content:center;align-items:center;animation:.2s fadeIn;display:flex;position:fixed;inset:0}.lightbox-close{top:max(16px, var(--safe-top));color:#e2e8f0;border-radius:var(--radius-full);cursor:pointer;z-index:1;width:44px;height:44px;transition:all var(--transition-fast);background:#ffffff14;border:1px solid #ffffff1a;font-size:20px;position:absolute;right:16px}.lightbox-close:hover{background:#ffffff26}.lightbox-overlay img{object-fit:contain;border-radius:var(--radius-sm);cursor:default;max-width:95vw;max-height:90vh}.empty-chat{color:var(--text-muted);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:12px;animation:.5s fadeIn;display:flex}.empty-chat-emoji{font-size:48px}.empty-chat-text{font-size:15px}.sending-bubble{align-self:flex-end;max-width:80%}.sending-bubble .bubble{background:var(--sent-bg);opacity:.6;color:#f0f4ffb3}.toast{bottom:max(80px, calc(var(--safe-bottom) + 80px));background:var(--bg-surface);border:1px solid var(--border-light);color:var(--text-primary);border-radius:var(--radius-xl);z-index:10000;box-shadow:var(--shadow-lg);padding:10px 20px;font-size:13px;animation:.3s slideUp;position:fixed;left:50%;transform:translate(-50%)}@media (width>=768px){.messages-area{padding:24px 16px}.message{max-width:65%}.bubble{padding:12px 16px;font-size:15.5px}.bubble-image{max-height:420px}.voice-player{min-width:280px}}@media (width<=380px){.messages-area{padding:12px 10px}.message{max-width:88%}.bubble{padding:8px 12px;font-size:14.5px}}.drop-overlay{z-index:9999;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#000000d9;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.drop-overlay-content{color:var(--blue-500);pointer-events:none;flex-direction:column;align-items:center;gap:16px;font-size:24px;font-weight:600;display:flex}.bubble-video{border-radius:var(--radius-md);background:#000;width:100%;max-height:300px;margin-top:4px;display:block}.gallery-overlay{background:var(--bg-default);z-index:10000;flex-direction:column;animation:.3s cubic-bezier(.16,1,.3,1) slideUp;display:flex;position:fixed;inset:0}.gallery-header{padding:16px;padding-top:max(16px, var(--safe-top));background:var(--bg-surface);border-bottom:1px solid var(--border-light);align-items:center;gap:16px;display:flex}.gallery-close{color:var(--text-primary);cursor:pointer;background:0 0;border:none;border-radius:50%;padding:8px;display:flex}.gallery-close:hover{background:#ffffff0d}.gallery-title{margin:0;font-size:18px;font-weight:600}.gallery-tabs{background:var(--bg-surface);border-bottom:1px solid var(--border-light);padding:0 16px;display:flex}.gallery-tab{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;flex:1;justify-content:center;align-items:center;gap:8px;padding:16px 0;font-size:15px;font-weight:500;transition:all .2s;display:flex}.gallery-tab.active{color:var(--blue-500);border-bottom-color:var(--blue-500)}.gallery-tab-count{background:#ffffff1a;border-radius:12px;padding:2px 6px;font-size:11px}.gallery-content{flex:1;padding:16px;overflow-y:auto}.gallery-loading,.gallery-empty{height:100%;color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;display:flex}.gallery-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:8px;display:grid}.gallery-grid-item{aspect-ratio:1;background:var(--bg-surface);cursor:pointer;border-radius:8px;position:relative;overflow:hidden}.gallery-grid-media{object-fit:cover;width:100%;height:100%}.gallery-grid-date{color:#fff;pointer-events:none;background:linear-gradient(#0000,#000c);padding:24px 8px 4px;font-size:11px;position:absolute;bottom:0;left:0;right:0}.gallery-audio-list{flex-direction:column;gap:12px;display:flex}.gallery-audio-item{background:var(--bg-surface);border-radius:12px;flex-direction:column;gap:8px;padding:12px;display:flex}.gallery-audio-info{color:var(--text-muted);justify-content:space-between;font-size:12px;display:flex}.gallery-audio-sender{color:var(--text-primary);font-weight:500}.preview-overlay{background:var(--bg-default);z-index:100;justify-content:center;align-items:center;padding:16px;animation:.2s fadeIn;display:flex;position:absolute;inset:0}.preview-container{background:var(--bg-surface);border-radius:var(--radius-xl);width:100%;max-width:400px;box-shadow:var(--shadow-lg);flex-direction:column;display:flex;overflow:hidden}.preview-header{border-bottom:1px solid var(--border-light);align-items:center;gap:12px;padding:12px 16px;font-weight:600;display:flex}.preview-close{color:var(--text-primary);cursor:pointer;background:#ffffff1a;border:none;border-radius:50%;justify-content:center;align-items:center;width:30px;height:30px;display:flex}.preview-media{background:#000;justify-content:center;align-items:center;min-height:200px;max-height:300px;display:flex;position:relative}.preview-element{object-fit:contain;max-width:100%;max-height:300px}.preview-audio-container{color:var(--blue-500);flex-direction:column;align-items:center;gap:16px;padding:24px;display:flex}.preview-audio-container span{color:#fff;word-break:break-all;font-size:14px}.preview-size{color:#fff;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0009;border-radius:6px;padding:4px 8px;font-size:12px;position:absolute;top:12px;left:12px}.preview-input-row{background:var(--bg-surface);align-items:center;gap:8px;padding:12px;display:flex}.optimistic-overlay{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);border-radius:var(--radius-md);color:#fff;background:#00000080;flex-direction:column;justify-content:center;align-items:center;gap:8px;display:flex;position:absolute;inset:0}.optimistic-spinner{border:3px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:32px;height:32px;animation:1s linear infinite spin}.optimistic-size{background:#0006;border-radius:12px;padding:2px 8px;font-size:12px;font-weight:500}
