:root{--bg-body: #f8fafc;--bg-card: #ffffff;--bg-card-hover: #f1f5f9;--bg-input: #f8fafc;--border-subtle: rgba(0, 0, 0, .08);--border-focus: rgba(14, 165, 142, .4);--accent-primary: #0ea58e;--accent-secondary: #0891b2;--accent-glow: rgba(14, 165, 142, .12);--accent-gradient: linear-gradient(135deg, #0ea58e 0%, #0891b2 100%);--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--error-bg: #fef2f2;--error-border: #fecaca;--error-text: #dc2626;--success-bg: #f0fdf4;--success-border: #bbf7d0;--success-text: #16a34a;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--font-display: "Outfit", sans-serif;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-smooth: .4s cubic-bezier(.16, 1, .3, 1);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 12px 40px rgba(0, 0, 0, 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var(--transition-fast)}.nickname-item:hover{background:var(--bg-card-hover);box-shadow:var(--shadow-md)}.nickname-info{display:flex;flex-direction:column;gap:2px}.nickname-name{font-family:var(--font-display);font-size:16px;font-weight:500;color:var(--text-primary)}.nickname-meta{font-size:12px;color:var(--text-muted)}.nickname-actions{display:flex;gap:8px}.empty-state{text-align:center;padding:48px 24px;background:var(--bg-card);border:1px dashed var(--border-subtle);border-radius:var(--radius-lg)}.empty-state-icon{font-size:48px;margin-bottom:16px;color:var(--text-muted);opacity:.5}.empty-state-text{color:var(--text-muted);font-size:14px}.download-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}.download-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent-gradient)}.download-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}.download-icon{font-size:24px;color:var(--accent-primary)}.download-info h3{font-size:16px;font-weight:600;margin-bottom:2px}.download-info span{font-size:12px;color:var(--text-muted);font-family:var(--font-display)}.download-btn{width:100%;margin-top:16px}.download-platforms{margin-top:20px}.download-platforms summary{font-size:13px;color:var(--text-muted);cursor:pointer;padding:8px 0;transition:color var(--transition-fast);list-style:none;display:flex;align-items:center;gap:8px}.download-platforms summary::-webkit-details-marker{display:none}.download-platforms summary:before{content:"›";font-size:16px;transition:transform var(--transition-fast)}.download-platforms[open] summary:before{transform:rotate(90deg)}.download-platforms summary:hover{color:var(--text-primary)}.platforms-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-top:16px}.platform-btn{display:flex;flex-direction:column;align-items:center;gap:8px;padding:16px;background:var(--bg-input);border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:var(--text-secondary);font-size:13px;cursor:pointer;transition:all var(--transition-fast)}.platform-btn:hover:not(:disabled){background:#fff;border-color:var(--accent-primary);color:var(--accent-primary);box-shadow:var(--shadow-md)}.platform-btn:disabled{opacity:.3;cursor:not-allowed}.platform-btn 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var(--border-subtle);border-radius:var(--radius-md);color:var(--text-muted);font-size:13px;text-align:center}.mobile-app-card{border-color:var(--accent-primary);background:linear-gradient(135deg,#0ea58e08,#0891b208)}.mobile-download-note{font-size:14px;color:var(--text-muted);text-align:center;margin:16px 0}.mobile-app-layout{width:100%;min-height:100vh;min-height:100dvh;display:flex;flex-direction:column}.mobile-messenger,.mobile-dm-view,.mobile-chat-room,.mobile-settings,.mobile-login{display:flex;flex-direction:column;height:100vh;height:100dvh;background:var(--bg-body);overflow:hidden}.mobile-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--bg-card);border-bottom:1px solid var(--border-subtle);min-height:56px;flex-shrink:0}.mobile-header-left{display:flex;align-items:center;gap:8px}.mobile-header-right{display:flex;align-items:center;gap:12px}.mobile-header-center{display:flex;flex-direction:column;align-items:center;gap:2px}.mobile-header-title{font-weight:600;font-size:16px;color:var(--text-primary)}.mobile-my-nickname{font-weight:600;font-size:15px;color:var(--text-primary)}.mobile-header-btn{width:36px;height:36px;border:none;background:transparent;color:var(--text-secondary);font-size:18px;cursor:pointer;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.mobile-header-btn:hover{background:var(--bg-input);color:var(--accent-primary)}.mobile-back-btn{background:none;border:none;color:var(--accent-primary);font-size:14px;font-weight:500;cursor:pointer;padding:8px 0}.mobile-offline-badge{font-size:11px;padding:4px 8px;background:var(--error-bg);color:var(--error-text);border-radius:100px}.mobile-status-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}.mobile-status-online{background:#28a745}.mobile-status-idle{background:#ff9800}.mobile-status-busy{background:#dc3545}.mobile-status-ghost,.mobile-status-offline{background:#999}.mobile-content{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch}.mobile-nav{display:flex;border-top:1px solid var(--border-subtle);background:var(--bg-card);flex-shrink:0;padding-bottom:env(safe-area-inset-bottom,0)}.mobile-nav-btn{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;padding:12px 8px;border:none;background:none;color:var(--text-muted);font-size:10px;cursor:pointer;transition:all var(--transition-fast)}.mobile-nav-btn svg{font-size:20px}.mobile-nav-btn.active{color:var(--accent-primary)}.mobile-loading,.mobile-error{display:flex;align-items:center;justify-content:center;padding:40px 20px;color:var(--text-muted);font-size:14px}.mobile-error{color:var(--error-text)}.mobile-loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;gap:16px;color:var(--text-muted)}.mobile-loading-logo{width:64px;height:64px;animation:logoPulse 2s ease-in-out infinite}.mobile-connection-banner{padding:8px 16px;background:var(--error-bg);color:var(--error-text);font-size:12px;text-align:center}.mobile-buddy-list{display:flex;flex-direction:column;height:100%}.mobile-search-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;background:var(--bg-card);border-bottom:1px solid var(--border-subtle)}.mobile-search-icon{color:var(--text-muted);font-size:14px}.mobile-search-input{flex:1;border:none;background:var(--bg-input);padding:10px 12px;border-radius:var(--radius-md);font-size:14px;color:var(--text-primary)}.mobile-search-input::placeholder{color:var(--text-muted)}.mobile-add-buddy-btn{width:40px;height:40px;border:none;background:var(--accent-glow);color:var(--accent-primary);border-radius:var(--radius-md);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center}.mobile-buddy-tree{flex:1;overflow-y:auto;padding:8px 0}.mobile-folder{margin-bottom:4px}.mobile-folder-header{display:flex;align-items:center;gap:8px;padding:10px 16px;cursor:pointer;-webkit-user-select:none;user-select:none}.mobile-folder-icon{width:16px;text-align:center;color:var(--text-muted);font-size:12px}.mobile-folder-name{font-weight:500;font-size:13px;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.mobile-folder-count{font-size:12px;color:var(--text-muted)}.mobile-folder-content{padding-left:8px}.mobile-folder-blocked .mobile-folder-name{color:var(--error-text)}.mobile-folder-offline{opacity:.7}.mobile-buddy-item{display:flex;align-items:center;gap:10px;padding:12px 16px 12px 32px;cursor:pointer;transition:background var(--transition-fast)}.mobile-buddy-item:active{background:var(--bg-card-hover)}.mobile-buddy-status{width:8px;height:8px;border-radius:50%;flex-shrink:0}.mobile-buddy-name{font-size:15px;color:var(--text-primary)}.mobile-buddy-offline{opacity:.6}.mobile-buddy-offline .mobile-buddy-name{color:var(--text-muted)}.mobile-messages{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:4px;background:#fff}.mobile-empty-messages{display:flex;align-items:center;justify-content:center;flex:1;color:var(--text-muted);font-size:14px;text-align:center;padding:40px 20px}.dm-message-wrapper{display:flex;flex-direction:column}.dm-message{display:flex;align-items:flex-start;gap:8px}.dm-message-author{font-size:13px;font-weight:600;color:var(--accent-primary);flex-shrink:0;min-width:70px;max-width:100px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dm-message-content-wrapper{flex:1;min-width:0}.dm-message-content{font-size:14px;color:var(--text-primary);line-height:1.5;word-break:break-word}.dm-message-content a{color:var(--accent-primary);text-decoration:underline}.dm-wizz-message{padding:6px 0;text-align:center}.dm-wizz-content{font-size:13px;color:var(--warning);font-style:italic}.chat-message-wrapper{display:flex;flex-direction:column}.chat-message{display:flex;align-items:flex-start;gap:8px}.chat-message-author{font-size:13px;font-weight:600;color:var(--accent-primary);flex-shrink:0;min-width:70px;max-width:100px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-message-author.host{color:var(--warning);font-weight:700}.chat-message-content{font-size:14px;color:var(--text-primary);line-height:1.5;word-break:break-word;flex:1}.mobile-chat-message.other{align-self:flex-start;background:var(--bg-card);border:1px solid var(--border-subtle)}.mobile-chat-message.host{align-self:center;background:linear-gradient(135deg,#e0f2fe,#bae6fd);color:#0369a1;font-style:italic;text-align:center}.mobile-chat-message.other .mobile-message-content{color:var(--text-primary)}.mobile-input-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;background:var(--bg-card);border-top:1px solid var(--border-subtle);flex-shrink:0;padding-bottom:calc(12px + env(safe-area-inset-bottom,0))}.mobile-message-input{flex:1;border:1px solid var(--border-subtle);background:var(--bg-input);padding:12px 16px;border-radius:var(--radius-lg);font-size:15px;color:var(--text-primary)}.mobile-message-input::placeholder{color:var(--text-muted)}.mobile-message-input:focus{outline:none;border-color:var(--accent-primary)}.mobile-send-btn{width:44px;height:44px;border:none;background:var(--accent-gradient);color:#fff;border-radius:50%;font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.mobile-send-btn:disabled{opacity:.4;cursor:not-allowed}.mobile-wizz-btn{width:44px;height:44px;border:none;background:linear-gradient(135deg,#fef3c7,#fde68a);color:#92400e;border-radius:50%;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center}.mobile-wizz-btn:disabled{opacity:.4}.mobile-chats-view{display:flex;flex-direction:column;height:100%}.mobile-chats-tabs{display:flex;border-bottom:1px solid var(--border-subtle);background:var(--bg-card)}.mobile-chats-tab{flex:1;padding:14px 16px;border:none;background:none;font-size:14px;font-weight:500;color:var(--text-muted);cursor:pointer;border-bottom:2px solid transparent;transition:all var(--transition-fast)}.mobile-chats-tab.active{color:var(--accent-primary);border-bottom-color:var(--accent-primary)}.mobile-category-scroll{display:flex;gap:8px;padding:12px 16px;overflow-x:auto;background:var(--bg-card);border-bottom:1px solid var(--border-subtle);-webkit-overflow-scrolling:touch}.mobile-category-scroll::-webkit-scrollbar{display:none}.mobile-category-btn{flex-shrink:0;padding:8px 16px;border:1px solid var(--border-subtle);background:var(--bg-input);border-radius:100px;font-size:13px;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast)}.mobile-category-btn.active{background:var(--accent-gradient);border-color:transparent;color:#fff}.mobile-create-chat-btn{display:flex;align-items:center;justify-content:center;gap:8px;margin:12px 16px;padding:12px;border:1px dashed var(--border-subtle);background:var(--bg-card);border-radius:var(--radius-md);color:var(--accent-primary);font-size:14px;cursor:pointer;transition:all var(--transition-fast)}.mobile-create-chat-btn:active{background:var(--accent-glow)}.mobile-chat-list{flex:1;overflow-y:auto;padding:8px 16px}.mobile-empty-chats{display:flex;align-items:center;justify-content:center;height:100px;color:var(--text-muted);font-size:14px}.mobile-chat-item{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);margin-bottom:8px;cursor:pointer;transition:all var(--transition-fast)}.mobile-chat-item:active{background:var(--bg-card-hover)}.mobile-chat-item.full{opacity:.5;cursor:not-allowed}.mobile-chat-info{display:flex;flex-direction:column;gap:4px}.mobile-chat-name{font-size:15px;font-weight:500;color:var(--text-primary)}.mobile-chat-count{font-size:12px;color:var(--text-muted)}.mobile-chat-full-badge{font-size:11px;padding:4px 8px;background:var(--error-bg);color:var(--error-text);border-radius:100px}.mobile-member-count{font-size:11px;color:var(--text-muted)}.mobile-members-btn{width:36px;height:36px;border:none;background:var(--bg-input);border-radius:var(--radius-sm);font-size:16px;cursor:pointer}.mobile-members-panel{position:absolute;top:56px;right:0;width:200px;max-height:300px;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:100;overflow:hidden}.mobile-members-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--border-subtle);font-size:13px;font-weight:500}.mobile-members-header button{background:none;border:none;font-size:18px;color:var(--text-muted);cursor:pointer}.mobile-members-list{max-height:240px;overflow-y:auto}.mobile-member-item{display:flex;align-items:center;gap:8px;padding:10px 16px;font-size:14px;border-bottom:1px solid var(--border-subtle)}.mobile-member-item:last-child{border-bottom:none}.mobile-settings-content{flex:1;overflow-y:auto;padding:16px}.mobile-settings-section{margin-bottom:24px}.mobile-settings-label{font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}.mobile-settings-value{font-size:16px;color:var(--text-primary);padding:12px 16px;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md)}.mobile-status-options{display:grid;grid-template-columns:1fr 1fr;gap:8px}.mobile-status-option{display:flex;align-items:center;gap:10px;padding:14px 16px;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);font-size:14px;color:var(--text-primary);cursor:pointer;transition:all var(--transition-fast)}.mobile-status-option.active{border-color:var(--accent-primary);background:var(--accent-glow)}.mobile-logout-btn{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:14px 16px;background:var(--error-bg);border:1px solid var(--error-border);border-radius:var(--radius-md);color:var(--error-text);font-size:14px;font-weight:500;cursor:pointer}.mobile-login-header{text-align:center;padding:40px 20px 24px}.mobile-login-logo{width:64px;height:64px;margin-bottom:16px}.mobile-login-header h1{font-size:24px;font-weight:600;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:4px}.mobile-login-subtitle{font-size:14px;color:var(--text-muted)}.mobile-login-content{flex:1;padding:0 20px;overflow-y:auto}.mobile-login-title{font-size:18px;font-weight:600;color:var(--text-primary);margin-bottom:16px;text-align:center}.mobile-no-nicknames{text-align:center;padding:40px 20px}.mobile-no-nicknames p{color:var(--text-secondary);font-size:15px;margin-bottom:12px}.mobile-nickname-list{display:flex;flex-direction:column;gap:8px}.mobile-nickname-item{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.mobile-nickname-item:active{background:var(--bg-card-hover);border-color:var(--accent-primary)}.mobile-nickname-name{font-size:16px;font-weight:500;color:var(--text-primary)}.mobile-nickname-arrow{color:var(--text-muted);font-size:18px}.mobile-selected-nickname{font-size:20px;font-weight:600;color:var(--accent-primary);text-align:center;margin-bottom:24px;font-family:var(--font-display)}.mobile-login-form{display:flex;flex-direction:column;gap:16px}.mobile-form-group{display:flex;flex-direction:column;gap:8px}.mobile-form-group label{font-size:13px;font-weight:500;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.mobile-form-group input{padding:14px 16px;border:1px solid var(--border-subtle);border-radius:var(--radius-md);font-size:16px;color:var(--text-primary);background:var(--bg-input)}.mobile-form-group input:focus{outline:none;border-color:var(--accent-primary)}.mobile-btn{display:flex;align-items:center;justify-content:center;gap:8px;padding:14px 20px;border:none;border-radius:var(--radius-md);font-size:15px;font-weight:600;cursor:pointer;transition:all var(--transition-fast)}.mobile-btn.primary{background:var(--accent-gradient);color:#fff}.mobile-btn.primary:disabled{opacity:.5;cursor:not-allowed}.mobile-btn.secondary{background:var(--bg-card);border:1px solid var(--border-subtle);color:var(--text-primary)}.mobile-btn.ghost{background:transparent;color:var(--accent-primary)}.mobile-alert{display:flex;align-items:center;gap:10px;padding:12px 16px;border-radius:var(--radius-md);font-size:14px;margin-bottom:16px}.mobile-alert.error{background:var(--error-bg);border:1px solid var(--error-border);color:var(--error-text)}.mobile-back-link{margin:20px;padding:12px;background:none;border:none;color:var(--text-muted);font-size:14px;text-align:center;cursor:pointer}.mobile-back-link:hover{color:var(--accent-primary)}.mobile-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:flex-end;justify-content:center;z-index:1000;padding:20px;padding-bottom:env(safe-area-inset-bottom,20px)}.mobile-modal{width:100%;max-width:400px;background:var(--bg-card);border-radius:var(--radius-xl);padding:24px;animation:slideUp .3s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.mobile-modal-title{font-size:18px;font-weight:600;color:var(--text-primary);margin-bottom:16px;text-align:center}.mobile-modal-input{width:100%;padding:14px 16px;border:1px solid var(--border-subtle);border-radius:var(--radius-md);font-size:16px;color:var(--text-primary);background:var(--bg-input);margin-bottom:16px}.mobile-modal-input:focus{outline:none;border-color:var(--accent-primary)}.mobile-modal-actions{display:flex;gap:12px}.mobile-modal-btn{flex:1;padding:14px 20px;border:none;border-radius:var(--radius-md);font-size:15px;font-weight:600;cursor:pointer;transition:all var(--transition-fast)}.mobile-modal-btn.primary{background:var(--accent-gradient);color:#fff}.mobile-modal-btn.primary:disabled{opacity:.5;cursor:not-allowed}.mobile-modal-btn.secondary{background:var(--bg-input);color:var(--text-secondary)}