*{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #0f0f0f;--bg-secondary: #1a1a1a;--bg-tertiary: #242424;--bg-hover: #2a2a2a;--text-primary: #ffffff;--text-secondary: #a0a0a0;--accent: #3b82f6;--accent-hover: #2563eb;--success: #22c55e;--error: #ef4444;--border: #333333}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;min-height:100dvh;overscroll-behavior:none}@media (display-mode: standalone){body{padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.auth-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:16px;padding:40px;width:100%;max-width:400px}.auth-title{font-size:28px;font-weight:700;text-align:center;margin-bottom:8px}.auth-subtitle{color:var(--text-secondary);text-align:center;margin-bottom:32px}.form-group{margin-bottom:20px}.form-label{display:block;font-size:14px;font-weight:500;margin-bottom:8px;color:var(--text-secondary)}.form-input{width:100%;padding:12px 16px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:8px;color:var(--text-primary);font-size:16px;transition:border-color .2s}.form-input:focus{outline:none;border-color:var(--accent)}.form-input::placeholder{color:var(--text-secondary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s;border:none}.btn-primary{background:var(--accent);color:#fff;width:100%}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.auth-link{text-align:center;margin-top:24px;color:var(--text-secondary)}.auth-link a{color:var(--accent);text-decoration:none}.auth-link a:hover{text-decoration:underline}.error-message{background:#ef44441a;border:1px solid var(--error);color:var(--error);padding:12px 16px;border-radius:8px;margin-bottom:20px;font-size:14px}.chat-layout{display:flex;height:100vh;height:100dvh}.sidebar{width:320px;background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column}.sidebar-header{padding:16px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.sidebar-title{font-size:20px;font-weight:700}.chat-list{flex:1;overflow-y:auto}.chat-item{display:flex;align-items:center;gap:12px;padding:12px 16px;cursor:pointer;transition:background .2s;border-bottom:1px solid var(--border)}.chat-item:hover{background:var(--bg-hover)}.chat-item.active{background:var(--bg-tertiary)}.chat-avatar{width:48px;height:48px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:600;flex-shrink:0;overflow:hidden}.avatar-img{width:100%;height:100%;object-fit:cover}.emoji-avatar{font-size:24px;background:linear-gradient(135deg,#667eea,#764ba2)}.chat-info{flex:1;min-width:0}.chat-name{font-weight:600;margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-last-message{color:var(--text-secondary);font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-meta{text-align:right;flex-shrink:0}.chat-time{color:var(--text-secondary);font-size:12px}.chat-unread{background:var(--accent);color:#fff;font-size:12px;font-weight:600;padding:2px 8px;border-radius:10px;margin-top:4px;display:inline-block}.chat-main{flex:1;display:flex;flex-direction:column;background:var(--bg-primary)}.chat-header{padding:16px 20px;background:var(--bg-secondary);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px}.chat-header-info{flex:1}.chat-header-name{font-weight:600;font-size:16px}.chat-header-status{color:var(--text-secondary);font-size:13px}.chat-header-status.online{color:var(--success)}.messages-container{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:8px}.message{max-width:70%;display:flex;flex-direction:column}.message.sent{align-self:flex-end}.message.received{align-self:flex-start}.message-bubble{padding:10px 14px;border-radius:16px;font-size:15px;line-height:1.4;word-break:break-word;overflow-wrap:break-word;max-width:100%}.message.sent .message-bubble{background:var(--accent);color:#fff;border-bottom-right-radius:4px}.message.received .message-bubble{background:var(--bg-tertiary);border-bottom-left-radius:4px}.message-time{font-size:11px;color:var(--text-secondary);margin-top:4px;padding:0 4px}.message.sent .message-time{text-align:right}.message-input-container{padding:16px 20px;padding-bottom:calc(16px + env(safe-area-inset-bottom,0px));background:var(--bg-secondary);border-top:1px solid var(--border);display:flex;align-items:center;gap:12px;flex-shrink:0;position:relative;z-index:10}.message-input{flex:1;padding:12px 16px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:24px;color:var(--text-primary);font-size:15px;resize:none;max-height:120px}.message-input:focus{outline:none;border-color:var(--accent)}.send-btn{width:44px;height:44px;border-radius:50%;background:var(--accent);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s}.send-btn:hover{background:var(--accent-hover)}.send-btn:disabled{opacity:.5;cursor:not-allowed}.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-secondary)}.empty-state-icon{font-size:64px;margin-bottom:16px}.empty-state-text{font-size:18px}.typing-indicator{color:var(--text-secondary);font-size:13px;padding:8px 16px}.icon-btn{width:40px;height:40px;border-radius:50%;background:transparent;border:none;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.icon-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:100}.modal{background:var(--bg-secondary);border:1px solid var(--border);border-radius:16px;padding:24px;width:100%;max-width:400px;max-height:80vh;overflow-y:auto}.modal-title{font-size:20px;font-weight:700;margin-bottom:20px}.search-wrapper{position:relative;display:flex;align-items:center;margin-bottom:16px}.search-wrapper .search-icon{position:absolute;left:12px;color:var(--text-secondary);pointer-events:none;display:flex;align-items:center}.search-input{width:100%;padding:10px 16px 10px 40px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:8px;color:var(--text-primary);font-size:14px}.search-input:focus{outline:none;border-color:var(--accent)}.user-item{display:flex;align-items:center;gap:12px;padding:12px;border-radius:8px;cursor:pointer;transition:background .2s}.user-item:hover{background:var(--bg-hover)}.user-avatar{width:40px;height:40px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:600;overflow:hidden}.user-name{font-weight:500}.user-email{color:var(--text-secondary);font-size:13px}.back-btn-mobile{display:none}@media (max-width: 768px){.chat-layout{position:relative;position:fixed;top:0;right:0;bottom:0;left:0;height:100%;height:100dvh}.sidebar{position:absolute;z-index:10;height:100%;width:100%;left:0;top:0}.sidebar.hidden-mobile{display:none}.chat-main{width:100%;height:100%;height:100dvh;display:flex;flex-direction:column;position:fixed;top:0;right:0;bottom:0;left:0;overflow:hidden}.chat-main.hidden-mobile{display:none}.chat-main .messages-container{flex:1;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch}.chat-main .message-input-container{position:sticky;bottom:0;background:var(--bg-secondary)}.back-btn-mobile{display:flex}.message{max-width:85%}.messages-container{flex:1;min-height:0}.message-input-container{padding:12px 16px;padding-bottom:calc(12px + env(safe-area-inset-bottom,0px));flex-shrink:0;box-sizing:border-box;width:100%;max-width:100vw}.send-btn,.attach-btn{width:40px;height:40px;min-width:40px;flex-shrink:0}.message-input{padding:10px 14px;min-height:40px;min-width:0;flex:1 1 auto}.modal{margin:16px;max-height:calc(100dvh - 32px)}.auth-container{min-height:100dvh}.auth-card{padding:24px}.auth-title{font-size:24px}}.file-message{display:flex;align-items:center;gap:10px;padding:8px 12px;background:#0003;border-radius:8px;min-width:180px}.file-message:hover{background:#0000004d}.media-message{position:relative;max-width:300px;border-radius:8px;overflow:hidden;cursor:pointer}.media-message.loading{background:#0003;padding:40px;text-align:center}.media-loading{color:var(--text-secondary);font-size:13px}.media-preview{display:block;width:100%;max-height:400px;object-fit:contain;border-radius:8px}.media-overlay{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,#000000b3);padding:8px 12px;display:flex;align-items:center;gap:6px;font-size:12px;color:#fff;opacity:0;transition:opacity .2s}.media-message:hover .media-overlay{opacity:1}.media-overlay span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}@media (max-width: 768px){.media-message{max-width:250px}.media-preview{max-height:300px}}@media (max-height: 500px) and (orientation: landscape){.chat-layout{height:100vh;height:100dvh}.sidebar-header{padding:8px 16px}.chat-header,.messages-container{padding:8px 16px;padding-left:max(16px,env(safe-area-inset-left));padding-right:max(16px,env(safe-area-inset-right))}.message-input-container{padding:8px 16px;padding-bottom:max(8px,env(safe-area-inset-bottom));padding-left:max(16px,env(safe-area-inset-left));padding-right:max(16px,env(safe-area-inset-right));display:flex;align-items:center;justify-content:center;gap:8px}.message-input-container .attach-btn{flex-shrink:0;width:36px;height:36px}.message-input-container .message-input{flex:0 1 500px;min-height:36px;padding:8px 14px}.message-input-container .send-btn{flex-shrink:0;width:36px;height:36px}.message{max-width:60%}.modal{max-height:90dvh}}.file-message span{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px}.attach-btn{width:44px;height:44px;flex-shrink:0}.attach-btn:disabled{opacity:.5;cursor:not-allowed}.profile-modal{max-width:340px}.profile-modal-content{text-align:center}.profile-modal-avatar{width:100px;height:100px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;overflow:hidden}.profile-modal-avatar img,.profile-modal-avatar video{width:100%;height:100%;object-fit:cover}.profile-modal-name{font-size:20px;font-weight:600;margin-bottom:4px}.profile-modal-username{display:flex;align-items:center;justify-content:center;gap:4px;color:var(--text-secondary);font-size:14px;margin-bottom:8px}.profile-modal-status{font-size:13px;color:var(--text-secondary);margin-bottom:16px}.profile-modal-status.online{color:var(--success)}.profile-modal-bio{text-align:left;margin-top:16px;padding-top:16px;border-top:1px solid var(--border)}.profile-modal-bio label{display:block;font-size:12px;font-weight:500;color:var(--text-secondary);margin-bottom:8px;text-transform:uppercase}.profile-modal-bio .bio-text{font-size:14px;color:var(--text-primary);line-height:1.5;white-space:pre-wrap}.call-fullscreen{position:fixed;top:0;right:0;bottom:0;left:0;background:#0a0a0a;display:flex;flex-direction:column;z-index:200;animation:fadeIn .2s ease}.call-video-container{flex:1;position:relative;background:#000;display:flex;align-items:center;justify-content:center;overflow:hidden}.call-video-main{width:100%;height:100%;object-fit:contain;background:#000}.call-video-pip{position:absolute;bottom:20px;right:20px;width:200px;height:150px;border-radius:12px;object-fit:cover;border:2px solid rgba(255,255,255,.3);box-shadow:0 4px 20px #00000080}.call-info-overlay{position:absolute;top:0;left:0;right:0;bottom:80px;display:flex;flex-direction:column;align-items:center;justify-content:center;pointer-events:none}.call-info-overlay.compact{top:20px;left:20px;right:auto;bottom:auto;flex-direction:row;gap:12px;padding:12px 20px;background:#000000b3;border-radius:50px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.call-avatar-large{width:150px;height:150px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;margin-bottom:24px;animation:pulse 2s infinite}.call-avatar-small{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;flex-shrink:0;overflow:hidden}.call-avatar-small .call-avatar-emoji{font-size:22px}.call-avatar-small .call-avatar-img{width:100%;height:100%;object-fit:cover}@keyframes pulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.05);opacity:.9}}.call-avatar-emoji{font-size:64px;color:#fff}.call-avatar-img{width:100%;height:100%;object-fit:cover;border-radius:50%}.call-user-info{text-align:center}.call-info-overlay.compact .call-user-info{text-align:left}.call-user-name-large{font-size:32px;font-weight:600;color:#fff;margin-bottom:8px;text-shadow:0 2px 10px rgba(0,0,0,.5)}.call-info-overlay.compact .call-user-name-large{font-size:16px;margin-bottom:2px}.call-status-text{font-size:18px;color:#ffffffb3;display:flex;align-items:center;justify-content:center;gap:12px}.call-info-overlay.compact .call-status-text{font-size:13px;justify-content:flex-start}.call-muted-badge{display:flex;align-items:center;gap:4px;color:var(--error);font-size:13px}.call-error-banner{position:absolute;top:20px;left:50%;transform:translate(-50%);background:#ef4444e6;color:#fff;padding:10px 20px;border-radius:8px;font-size:14px}.call-controls-bar{display:flex;align-items:center;justify-content:center;gap:24px;padding:20px;background:#000c;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.call-control-btn{display:flex;flex-direction:column;align-items:center;gap:6px;padding:12px 20px;border-radius:16px;border:none;cursor:pointer;transition:all .2s;background:#ffffff1a;color:#fff;min-width:80px}.call-control-btn span{font-size:12px;opacity:.8}.call-control-btn:hover:not(:disabled){background:#fff3;transform:translateY(-2px)}.call-control-btn:disabled{opacity:.4;cursor:not-allowed}.call-control-btn.active{background:var(--accent)}.call-control-btn.end-call{background:var(--error)}.call-control-btn.end-call:hover,.call-btn.end-call:hover{background:#dc2626}.call-fullscreen-btn{position:absolute;top:16px;right:16px;width:44px;height:44px;border-radius:50%;border:none;background:#0009;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;z-index:10;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.call-fullscreen-btn:hover{background:#000c;transform:scale(1.1)}.call-video-main{cursor:pointer}.call-video-container:fullscreen,.call-video-container:-webkit-full-screen{background:#000}.call-video-container:fullscreen .call-video-main,.call-video-container:-webkit-full-screen .call-video-main{width:100%;height:100%;object-fit:contain}.call-video-container:fullscreen .call-fullscreen-btn,.call-video-container:-webkit-full-screen .call-fullscreen-btn{position:fixed;top:16px;right:16px}.call-video-container:fullscreen .call-video-pip,.call-video-container:-webkit-full-screen .call-video-pip{position:fixed;bottom:20px;right:20px}@media (max-height: 500px) and (orientation: landscape){.call-fullscreen{flex-direction:row}.call-video-container{flex:1;height:100%}.call-info-overlay{bottom:60px}.call-info-overlay.compact{top:10px;left:10px;padding:8px 16px}.call-info-overlay.compact .call-user-name-large{font-size:14px}.call-avatar-large{width:80px;height:80px;margin-bottom:12px}.call-avatar-emoji{font-size:36px}.call-user-name-large{font-size:20px}.call-status-text{font-size:14px}.call-controls-bar{position:fixed;bottom:0;left:0;right:0;padding:10px 20px;padding-bottom:max(10px,env(safe-area-inset-bottom));padding-left:max(20px,env(safe-area-inset-left));padding-right:max(20px,env(safe-area-inset-right));gap:16px}.call-control-btn{padding:10px 16px;min-width:70px}.call-control-btn span{font-size:11px}.call-video-pip{width:120px;height:90px;bottom:70px;right:10px}.call-fullscreen-btn{top:10px;right:10px;width:36px;height:36px}}@media (max-width: 480px){.call-controls-bar{gap:16px;padding:16px;padding-bottom:max(16px,env(safe-area-inset-bottom))}.call-control-btn{padding:10px 14px;min-width:65px}.call-avatar-large{width:120px;height:120px}.call-avatar-emoji{font-size:48px}.call-user-name-large{font-size:24px}.call-fullscreen-btn{width:40px;height:40px}}.incoming-call-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000d9;display:flex;align-items:center;justify-content:center;z-index:200;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.incoming-call-notification{background:var(--bg-secondary);border:1px solid var(--border);border-radius:24px;padding:32px 48px;display:flex;flex-direction:column;align-items:center;gap:24px;box-shadow:0 16px 64px #00000080;animation:scaleIn .3s ease;min-width:320px}@keyframes scaleIn{0%{transform:scale(.9);opacity:0}to{transform:scale(1);opacity:1}}.incoming-call-content{display:flex;flex-direction:column;align-items:center;gap:16px}.incoming-call-avatar{width:100px;height:100px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;font-size:48px;font-weight:600;color:#fff;animation:pulse 2s ease infinite;overflow:hidden}.incoming-call-avatar .avatar-emoji{font-size:48px}.incoming-call-avatar .avatar-img{width:100%;height:100%;object-fit:cover}@keyframes pulse{0%,to{transform:scale(1);box-shadow:0 0 #667eeab3}50%{transform:scale(1.05);box-shadow:0 0 0 20px #667eea00}}.incoming-call-info{text-align:center}.incoming-call-name{font-weight:600;font-size:24px;color:var(--text-primary)}.incoming-call-label{font-size:15px;color:var(--text-secondary);margin-bottom:4px}.incoming-call-buttons{display:flex;gap:32px}.incoming-call-btn{width:64px;height:64px;border-radius:50%;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;color:#fff}.incoming-call-btn.reject{background:var(--error)}.incoming-call-btn.reject:hover{background:#dc2626;transform:scale(1.1)}.incoming-call-btn.accept{background:var(--success);animation:greenPulse 1.5s ease infinite}@keyframes greenPulse{0%,to{box-shadow:0 0 #22c55eb3}50%{box-shadow:0 0 0 15px #22c55e00}}.incoming-call-btn.accept:hover{background:#16a34a;transform:scale(1.1)}.call-header-btn{width:36px;height:36px;border-radius:50%;background:transparent;border:none;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.call-header-btn:hover{background:var(--bg-hover);color:var(--accent)}.call-header-btn:disabled{opacity:.4;cursor:not-allowed}@media (max-width: 768px){.incoming-call-notification{padding:24px;min-width:auto;margin:16px}.incoming-call-avatar{width:80px;height:80px}.incoming-call-avatar .avatar-emoji{font-size:36px}.incoming-call-name{font-size:20px}.incoming-call-btn{width:56px;height:56px}.call-video-pip{width:120px;height:90px;bottom:100px;right:10px}.call-avatar-large{width:120px;height:120px}.call-avatar-emoji{font-size:48px}.call-user-name-large{font-size:24px}.call-controls-bar{gap:12px;padding:16px}.call-control-btn{padding:10px 14px;min-width:70px}.call-control-btn span{font-size:10px}}
