.admin-panel-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:100}.admin-panel{background:var(--bg-sidebar);border-radius:12px;width:380px;max-height:80vh;display:flex;flex-direction:column;overflow:hidden}.admin-panel.wide{width:520px}.admin-panel.narrow{width:340px}.admin-panel-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}.admin-panel-header h3{margin:0;font-size:16px;color:var(--text-primary)}.close-btn{background:none;border:none;color:var(--text-secondary);font-size:18px;cursor:pointer;padding:4px 8px}.close-btn:hover{color:var(--text-primary)}.admin-panel-body{padding:20px;overflow-y:auto}.admin-input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:6px;background:var(--bg-input);color:var(--text-primary);font-size:14px;outline:none;box-sizing:border-box;margin-bottom:12px}.admin-input:focus{border-color:var(--green)}.admin-textarea{resize:vertical;font-family:inherit}.field-label{display:block;font-size:12px;color:var(--text-secondary);margin-bottom:4px}.admin-btn{padding:8px 16px;border:none;border-radius:6px;font-size:14px;cursor:pointer;background:var(--bg-input);color:var(--text-primary);transition:background .2s}.admin-btn:hover{background:var(--border)}.admin-btn.primary{background:var(--green);color:#fff}.admin-btn.primary:hover{background:#00c896}.admin-btn.primary:disabled{opacity:.6;cursor:not-allowed}.admin-btn.small{padding:4px 10px;font-size:12px}.admin-btn.danger{color:#ff5252}.admin-btn.danger:hover{background:#ff525226}.avatar-section{display:flex;justify-content:center;margin-bottom:20px}.avatar-preview{width:80px;height:80px;border-radius:50%;overflow:hidden;cursor:pointer;position:relative}.avatar-preview img{width:100%;height:100%;object-fit:cover}.avatar-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:32px;color:#fff;font-weight:600}.avatar-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;font-size:11px;color:#fff;opacity:0;transition:opacity .2s}.avatar-preview:hover .avatar-overlay{opacity:1}.link-create-row{display:flex;gap:8px;margin-bottom:16px}.link-create-row .admin-input{margin-bottom:0}.link-list{display:flex;flex-direction:column;gap:8px}.link-item{display:flex;align-items:center;gap:12px;padding:12px;background:var(--bg-input);border-radius:8px}.link-item.used{opacity:.8}.link-info{flex:1;min-width:0}.link-label{font-size:14px;color:var(--text-primary);display:flex;align-items:center;gap:8px}.link-status{font-size:11px;padding:2px 6px;border-radius:4px}.link-status.free{background:#00a88433;color:var(--green)}.link-status.bound{background:#ff980033;color:#ff9800}.link-url{font-size:11px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}.link-time{font-size:11px;color:var(--text-secondary);margin-top:2px}.link-actions{display:flex;gap:4px;flex-shrink:0}.session-list{display:flex;flex-direction:column;gap:8px}.session-item{display:flex;align-items:center;gap:12px;padding:12px;background:var(--bg-input);border-radius:8px}.session-info{flex:1;min-width:0}.session-name{font-size:14px;color:var(--text-primary);display:flex;align-items:center;gap:8px}.session-type{font-size:11px;padding:2px 6px;border-radius:4px;background:#00a88433;color:var(--green)}.session-meta{font-size:12px;color:var(--text-secondary);margin-top:2px}.session-user-detail{font-size:11px;color:var(--text-secondary);margin-top:2px}.user-card{display:flex;flex-direction:column;align-items:center;margin-bottom:20px}.user-card-avatar{width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:26px;color:#fff;font-weight:600;margin-bottom:8px}.user-card-name{font-size:18px;font-weight:600;color:var(--text-primary)}.user-card-role{font-size:12px;color:var(--text-secondary);margin-top:2px}.info-grid{display:flex;flex-direction:column;gap:10px}.info-row{display:flex;justify-content:space-between;align-items:flex-start;padding:8px 0;border-bottom:1px solid var(--border)}.info-label{font-size:13px;color:var(--text-secondary);flex-shrink:0}.info-value{font-size:13px;color:var(--text-primary);text-align:right;word-break:break-all}.empty-hint{text-align:center;color:var(--text-secondary);font-size:14px;padding:20px}.qr-preview{display:flex;flex-direction:column;align-items:center;padding:16px;margin-bottom:16px;background:var(--bg-input);border-radius:8px}.qr-preview-img{border-radius:8px;margin-bottom:8px}.qr-preview-label{font-size:15px;font-weight:500;color:var(--text-primary)}.qr-preview-serial{font-size:12px;color:var(--green);margin-top:4px}.qr-preview-url{font-size:11px;color:var(--text-secondary);margin-top:4px;word-break:break-all;text-align:center}.batch-create-row{display:flex;flex-direction:column;gap:8px;margin-bottom:14px}.batch-presets{display:flex;gap:8px;flex-wrap:wrap}.batch-manual{display:flex;gap:8px}.batch-manual .admin-input{margin-bottom:0;width:120px}.settings-divider{height:1px;background:var(--border);margin:18px 0 14px}.settings-section-title{font-size:13px;color:var(--text-secondary);margin-bottom:10px}.qr-style-logo-row{display:flex;align-items:center;gap:10px;margin-bottom:12px}.qr-logo-preview{width:52px;height:52px;border-radius:10px;overflow:hidden;background:var(--bg-input);display:flex;align-items:center;justify-content:center}.qr-logo-preview img{width:100%;height:100%;object-fit:cover}.qr-logo-empty{font-size:12px;color:var(--text-secondary)}.qr-logo-actions{display:flex;gap:8px}.color-input-row{display:flex;align-items:center;gap:8px;margin-bottom:10px}.color-picker{width:40px;height:34px;padding:0;border:1px solid var(--border);background:transparent;border-radius:6px}.color-text{margin-bottom:0}@media(max-width:768px){.admin-panel{width:calc(100vw - 16px);max-height:92vh;border-radius:10px}.admin-panel.wide,.admin-panel.narrow{width:calc(100vw - 16px)}.admin-panel-header{padding:12px 14px}.admin-panel-body{padding:14px}.link-create-row,.batch-manual{flex-direction:column}.batch-manual .admin-input{width:100%}.link-item,.session-item{flex-direction:column;align-items:stretch;gap:8px}.link-actions{justify-content:flex-end}.info-row{flex-direction:column;gap:4px}.info-value{text-align:left}}.sidebar{width:340px;min-width:340px;display:flex;flex-direction:column;background:var(--bg-sidebar);border-right:1px solid var(--border)}.user-profile{display:flex;align-items:center;padding:10px 16px;background:var(--header-bg);height:60px}.user-profile .avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:16px;flex-shrink:0;overflow:hidden}.user-profile .avatar .avatar-image{width:100%;height:100%;object-fit:cover;display:block}.user-profile .nickname{flex:1;margin-left:12px;font-size:16px;font-weight:500}.user-profile .actions{display:flex;gap:8px}.user-profile .actions button{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:8px;border-radius:50%;font-size:18px;transition:background .2s}.user-profile .actions button:hover{background:var(--bg-hover)}.search-bar{padding:8px 12px}.search-bar input{width:100%;padding:8px 32px 8px 12px;border:none;border-radius:8px;background:var(--bg-input);color:var(--text-primary);font-size:14px;outline:none}.search-bar input::placeholder{color:var(--text-secondary)}.chat-list{flex:1;overflow-y:auto}.chat-list-item{display:flex;align-items:center;padding:10px 16px;cursor:pointer;transition:background .15s}.chat-list-item:hover{background:var(--bg-hover)}.chat-list-item.active{background:var(--bg-active)}.chat-list-item .avatar{width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:18px;flex-shrink:0;position:relative}.chat-list-item .online-dot{position:absolute;bottom:2px;right:2px;width:10px;height:10px;border-radius:50%;background:var(--green-light);border:2px solid var(--bg-sidebar)}.chat-list-item .info{flex:1;margin-left:12px;min-width:0;border-bottom:1px solid var(--border);padding-bottom:10px}.chat-list-item .info .top-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:2px}.chat-list-item .info .name{font-size:16px;font-weight:400;color:var(--text-primary)}.chat-list-item .info .time{font-size:12px;color:var(--text-secondary);flex-shrink:0}.chat-list-item .info .last-msg{font-size:13px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media(max-width:768px){.sidebar{width:100%;min-width:0;border-right:none;height:100dvh;min-height:100vh}.user-profile,.chat-list-item{padding:10px 12px}}.chat-panel{flex:1;display:flex;flex-direction:column;height:100dvh;min-height:100vh;transition:transform .18s ease;will-change:transform}.chat-panel.is-swiping{transition:none}.chat-header{display:flex;align-items:center;padding:10px 16px;background:var(--header-bg);height:60px;border-bottom:1px solid var(--border)}.mobile-back-btn{display:none;background:none;border:none;color:var(--text-primary);font-size:20px;cursor:pointer;margin-right:6px;padding:6px 8px}.chat-header .avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:16px;flex-shrink:0}.chat-header .header-info{margin-left:12px}.chat-header .header-info .name{font-size:16px;font-weight:500}.chat-header .header-info .status{font-size:13px;color:var(--text-secondary)}.chat-header .header-info .status.online{color:var(--green-light)}.message-list{flex:1;overflow-y:auto;padding:16px 60px;display:flex;flex-direction:column;gap:0;background:var(--bg-message-area)}.message-row{display:flex;align-items:flex-end;margin-top:8px}.message-row.new-group{margin-top:24px}.message-row.sent{justify-content:flex-end}.message-row.received{justify-content:flex-start}.msg-avatar-wrap{flex-shrink:0;width:34px;margin-right:8px}.msg-avatar-wrap.right{margin-right:0;margin-left:8px}.msg-avatar{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:13px}.msg-avatar-spacer{width:34px;height:0}.message-bubble{max-width:65%;padding:6px 8px 8px;border-radius:8px;position:relative;word-wrap:break-word}.message-bubble.sent{background:var(--bg-sent);border-top-right-radius:0}.message-bubble.received{background:var(--bg-received);border-top-left-radius:0}.message-bubble .sender-name{font-size:12px;font-weight:600;margin-bottom:2px}.message-bubble .content{font-size:14.2px;line-height:1.4;margin-right:48px}.message-bubble .meta{float:right;margin-top:-10px;font-size:11px;color:#fff9}.message-input-area{display:flex;align-items:center;padding:10px 16px;background:var(--header-bg);gap:10px}.message-input-area input{flex:1;padding:10px 16px;border:none;border-radius:8px;background:var(--bg-input);color:var(--text-primary);font-size:15px;outline:none}.message-input-area input::placeholder{color:var(--text-secondary)}.message-input-area button{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:8px;font-size:22px;transition:color .2s}.message-input-area button:hover{color:var(--green)}.attach-btn{font-size:20px!important}.message-bubble.has-media{padding:4px}.message-bubble.has-media .content{padding:4px 4px 0}.message-bubble.has-media .meta{padding-right:4px}.message-bubble.has-media .sender-name{padding:2px 4px 0}.msg-image{max-width:280px;max-height:300px;border-radius:6px;cursor:pointer;display:block;object-fit:cover}.image-fullscreen{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000d9;display:flex;align-items:center;justify-content:center;z-index:200;cursor:pointer}.image-fullscreen img{max-width:90vw;max-height:90vh;object-fit:contain;border-radius:4px}.msg-file{display:flex;align-items:center;gap:10px;padding:10px 12px;background:#00000026;border-radius:6px;text-decoration:none;color:var(--text-primary);min-width:200px}.msg-file .file-icon{font-size:28px;flex-shrink:0}.msg-file .file-info{flex:1;display:flex;flex-direction:column;min-width:0}.msg-file .file-name{font-size:13px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.msg-file .file-size{font-size:11px;color:var(--text-secondary)}.msg-file .file-download{font-size:18px;color:var(--text-secondary);flex-shrink:0}.date-divider{text-align:center;margin:12px 0}.date-divider span{background:var(--bg-received);color:var(--text-secondary);font-size:12px;padding:4px 12px;border-radius:8px}@media(max-width:768px){.chat-panel{height:100dvh}.mobile-back-btn{display:inline-flex;align-items:center;justify-content:center}.chat-header{padding:8px 10px;height:56px}.chat-header .avatar{width:34px;height:34px;font-size:14px}.chat-header .header-info .name{font-size:15px;max-width:58vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-header .header-info .status{font-size:12px}.message-list{padding:10px}.message-row.new-group{margin-top:16px}.msg-avatar-wrap,.msg-avatar-spacer,.msg-avatar{width:28px}.msg-avatar{height:28px;font-size:11px}.message-bubble{max-width:82%;padding:6px 8px}.message-bubble .content{font-size:14px;margin-right:40px}.msg-image{max-width:min(64vw,260px);max-height:240px}.msg-file{min-width:0;width:100%;max-width:68vw}.message-input-area{padding:8px 10px calc(8px + env(safe-area-inset-bottom));gap:6px;position:sticky;bottom:0;z-index:4}.message-input-area input{font-size:16px;padding:10px 12px}.message-input-area button{font-size:20px;padding:6px}}:root{--bg-dark: #111b21;--bg-darker: #0b141a;--bg-sidebar: #111b21;--bg-chat: #0b141a;--bg-message-area: #0b141a;--bg-sent: #005c4b;--bg-received: #202c33;--bg-input: #2a3942;--bg-hover: #202c33;--bg-active: #2a3942;--text-primary: #e9edef;--text-secondary: #8696a0;--green: #00a884;--green-light: #25d366;--border: #222d34;--header-bg: #202c33}html,body,#root{height:100%;background:var(--bg-darker);color:var(--text-primary)}.app{display:flex;height:100dvh;min-height:100vh;max-width:1600px;margin:0 auto;background:var(--bg-dark);overflow:hidden;position:relative}.main-panel{flex:1;display:flex;flex-direction:column;background:var(--bg-chat);border-left:1px solid var(--border)}.nickname-prompt{display:flex;align-items:center;justify-content:center;height:100vh;background:var(--bg-darker)}.nickname-prompt .card{background:var(--bg-sidebar);padding:40px;border-radius:8px;text-align:center;min-width:360px}.nickname-prompt h1{font-size:24px;margin-bottom:8px;color:var(--text-primary)}.nickname-prompt p{color:var(--text-secondary);margin-bottom:24px;font-size:14px}.nickname-prompt input{width:100%;padding:12px 16px;border:none;border-radius:8px;background:var(--bg-input);color:var(--text-primary);font-size:15px;outline:none;margin-bottom:16px}.nickname-prompt input:focus{box-shadow:0 0 0 2px var(--green)}.nickname-prompt button{width:100%;padding:12px;border:none;border-radius:8px;background:var(--green);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:background .2s}.nickname-prompt button:hover{background:#009a7b}.loading-screen{display:flex;align-items:center;justify-content:center;height:100vh;background:var(--bg-darker);color:var(--text-secondary);font-size:16px}.group-manager{background:var(--header-bg);border-bottom:1px solid var(--border);padding:12px 16px}.group-actions{display:flex;gap:8px;margin-bottom:12px}.action-btn{padding:6px 14px;border:1px solid var(--border);border-radius:6px;background:transparent;color:var(--text-primary);cursor:pointer;font-size:13px;transition:all .2s}.action-btn:hover{background:var(--bg-hover)}.action-btn.danger{border-color:#ef5350;color:#ef5350}.action-btn.danger:hover{background:#ef53501a}.manage-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:8px;font-size:20px;margin-left:auto;transition:color .2s}.manage-btn:hover{color:var(--text-primary)}.member-list{max-height:200px;overflow-y:auto}.member-list h4{font-size:13px;color:var(--text-secondary);font-weight:400;margin-bottom:8px}.member-item{display:flex;align-items:center;padding:6px 0;gap:10px}.member-avatar{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:13px;flex-shrink:0}.member-name{flex:1;font-size:14px;color:var(--text-primary)}.admin-badge{font-size:11px;color:var(--green);margin-left:6px}.kick-btn,.add-btn{padding:4px 10px;border:1px solid var(--border);border-radius:4px;background:transparent;color:var(--text-secondary);cursor:pointer;font-size:12px;transition:all .2s}.kick-btn:hover{border-color:#ef5350;color:#ef5350}.add-btn:hover{border-color:var(--green);color:var(--green)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#8696a04d;border-radius:3px}.admin-profile-card{display:flex;flex-direction:column;align-items:center;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--border)}.admin-card-avatar{width:64px;height:64px;border-radius:50%;object-fit:cover;margin-bottom:8px}.admin-card-avatar-placeholder{width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:26px;color:#fff;font-weight:600;margin-bottom:8px}.admin-card-name{font-size:18px;font-weight:600;color:var(--text-primary)}.admin-card-bio{font-size:13px;color:var(--text-secondary);margin-top:4px;text-align:center;max-width:240px}.app-error-banner{position:absolute;top:10px;left:50%;transform:translate(-50%);z-index:300;background:#ef5350eb;color:#fff;font-size:13px;padding:8px 12px;border-radius:8px;max-width:calc(100vw - 20px);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media(max-width:900px){.nickname-prompt .card{min-width:0;width:calc(100vw - 32px);padding:24px 18px}}@media(max-width:768px){.app{max-width:none;width:100%}.main-panel{border-left:none}.app.room-open .sidebar,.app.room-closed .main-panel{display:none}}