@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap";:root{--primary: #229ED9;--primary-dark: #1a7fb0;--primary-light: #e8f4fd;--primary-rgb: 34, 158, 217;--accent: #10b981;--danger: #ef4444;--warning: #f59e0b;--bg: #f0f2f5;--white: #ffffff;--surface: #ffffff;--surface2: #f8fafc;--text-primary: #0f172a;--text-secondary: #64748b;--text-muted: #94a3b8;--border: rgba(0, 0, 0, .06);--border-strong: rgba(0, 0, 0, .12);--separator: #e2e8f0;--shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 12px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.05);--shadow-lg: 0 10px 30px rgba(0,0,0,.12), 0 4px 10px rgba(0,0,0,.06);--shadow-xl: 0 20px 60px rgba(0,0,0,.15);--radius-sm: 6px;--radius: 10px;--radius-lg: 14px;--radius-xl: 20px;--radius-full: 9999px;--sidebar-width: 360px;--transition: all .2s cubic-bezier(.4, 0, .2, 1);--chat-bg-color: #dce8f2;--chat-bg: var(--chat-bg-color);--chat-pattern: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Ccircle cx='10' cy='10' r='1.2' fill='%2329a8d9' fill-opacity='0.08'/%3E%3Ccircle cx='30' cy='10' r='1.2' fill='%2329a8d9' fill-opacity='0.08'/%3E%3Ccircle cx='50' cy='10' r='1.2' fill='%2329a8d9' fill-opacity='0.08'/%3E%3Ccircle cx='10' cy='30' r='1.2' fill='%2329a8d9' fill-opacity='0.08'/%3E%3Ccircle cx='30' cy='30' r='1.2' fill='%2329a8d9' fill-opacity='0.08'/%3E%3Ccircle cx='50' cy='30' r='1.2' fill='%2329a8d9' fill-opacity='0.08'/%3E%3Ccircle cx='10' cy='50' r='1.2' fill='%2329a8d9' fill-opacity='0.08'/%3E%3Ccircle cx='30' cy='50' r='1.2' fill='%2329a8d9' fill-opacity='0.08'/%3E%3Ccircle cx='50' cy='50' r='1.2' fill='%2329a8d9' fill-opacity='0.08'/%3E%3C/svg%3E");--msg-mine-bg: #229ED9;--msg-other-bg: #ffffff}[data-theme=dark]{--primary: #38bdf8;--primary-dark: #0ea5e9;--primary-light: rgba(56, 189, 248, .1);--bg: #0f1117;--white: #1e2330;--surface: #1a2035;--surface2: #151b2c;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--border: rgba(255,255,255,.06);--border-strong: rgba(255,255,255,.1);--separator: rgba(255,255,255,.08);--shadow-sm: 0 1px 3px rgba(0,0,0,.3);--shadow-md: 0 4px 12px rgba(0,0,0,.4);--shadow-lg: 0 10px 30px rgba(0,0,0,.5);--chat-bg-color: #0e1621;--chat-bg: var(--chat-bg-color);--chat-pattern: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Ccircle cx='10' cy='10' r='1.2' fill='%23ffffff' fill-opacity='0.04'/%3E%3Ccircle cx='30' cy='10' r='1.2' fill='%23ffffff' fill-opacity='0.04'/%3E%3Ccircle cx='50' cy='10' r='1.2' fill='%23ffffff' fill-opacity='0.04'/%3E%3Ccircle cx='10' cy='30' r='1.2' fill='%23ffffff' fill-opacity='0.04'/%3E%3Ccircle cx='30' cy='30' r='1.2' fill='%23ffffff' fill-opacity='0.04'/%3E%3Ccircle cx='50' cy='30' r='1.2' fill='%23ffffff' fill-opacity='0.04'/%3E%3Ccircle cx='10' cy='50' r='1.2' fill='%23ffffff' fill-opacity='0.04'/%3E%3Ccircle cx='30' cy='50' r='1.2' fill='%23ffffff' fill-opacity='0.04'/%3E%3Ccircle cx='50' cy='50' r='1.2' fill='%23ffffff' fill-opacity='0.04'/%3E%3C/svg%3E");--msg-mine-bg: #1d6fa5;--msg-other-bg: #1e2330}[data-theme=emerald]{--primary: #059669;--primary-dark: #047857;--primary-light: #d1fae5;--primary-rgb: 5, 150, 105;--chat-bg-color: #d4eeda;--chat-bg: var(--chat-bg-color);--chat-pattern: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Ccircle cx='10' cy='10' r='1.2' fill='%23059669' fill-opacity='0.1'/%3E%3Ccircle cx='30' cy='10' r='1.2' fill='%23059669' fill-opacity='0.1'/%3E%3Ccircle cx='50' cy='10' r='1.2' fill='%23059669' fill-opacity='0.1'/%3E%3Ccircle cx='10' cy='30' r='1.2' fill='%23059669' fill-opacity='0.1'/%3E%3Ccircle cx='30' cy='30' r='1.2' fill='%23059669' fill-opacity='0.1'/%3E%3Ccircle cx='50' cy='30' r='1.2' fill='%23059669' fill-opacity='0.1'/%3E%3Ccircle cx='10' cy='50' r='1.2' fill='%23059669' fill-opacity='0.1'/%3E%3Ccircle cx='30' cy='50' r='1.2' fill='%23059669' fill-opacity='0.1'/%3E%3Ccircle cx='50' cy='50' r='1.2' fill='%23059669' fill-opacity='0.1'/%3E%3C/svg%3E");--msg-mine-bg: #059669}*,*:before,*:after{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html{height:100%}body{margin:0;padding:0;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;font-size:14px;line-height:1.5;color:var(--text-primary);background:var(--bg);overscroll-behavior:none;-webkit-font-smoothing:antialiased;height:100%}#root{height:100%}input,textarea,button{font-family:inherit}input,textarea{font-size:16px!important}button{cursor:pointer;border:none;background:none}a{text-decoration:none;color:inherit}img{display:block}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#00000026;border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:#00000047}[data-theme=dark] ::-webkit-scrollbar-thumb{background:#ffffff1a}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@keyframes slideInLeft{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.92)}to{opacity:1;transform:scale(1)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}@keyframes ripple{0%{transform:scale(.8);opacity:1}to{transform:scale(2.5);opacity:0}}@keyframes msgIn{0%{opacity:0;transform:scale(.94) translateY(6px)}to{opacity:1;transform:scale(1) translateY(0)}}.animate-spin{animation:spin 1s linear infinite}.animate-pulse{animation:pulse 1.5s ease-in-out infinite}.animate-fade-in{animation:fadeIn .25s ease 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.msg-bubble{background:var(--msg-other-bg);color:var(--text-primary);border-radius:16px 16px 16px 3px;box-shadow:var(--shadow-sm);border:1px solid var(--border)}.msg-time{font-size:9px;font-weight:500;margin-top:4px;text-align:right}.msg-row.mine .msg-time{color:#ffffffa6}.msg-row.other .msg-time{color:var(--text-muted)}.date-separator{display:flex;align-items:center;gap:12px;margin:12px 0 8px}.date-separator:before,.date-separator:after{content:"";flex:1;height:1px;background:var(--border-strong)}.date-separator span{font-size:11px;font-weight:600;color:var(--text-muted);padding:3px 10px;background:#0000000d;border-radius:var(--radius-full);white-space:nowrap}[data-theme=dark] .date-separator span{background:#ffffff0d}.typing-indicator{display:flex;align-items:center;gap:4px;padding:10px 14px;background:var(--msg-other-bg);border-radius:16px 16px 16px 3px;width:fit-content;box-shadow:var(--shadow-sm);border:1px solid 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rgba(var(--primary-rgb),.4)}.btn-primary:active{transform:translateY(0)}.btn-ghost{background:var(--surface2);color:var(--text-primary);border:1px solid var(--border)}.btn-ghost:hover{background:var(--primary-light);color:var(--primary);border-color:var(--primary)}.btn-danger{background:#fee2e2;color:var(--danger)}.btn-danger:hover{background:var(--danger);color:#fff}.btn-sm{padding:6px 12px;font-size:12px}.btn-xs{padding:3px 9px;font-size:11px;border-radius:var(--radius-sm)}.btn-round{border-radius:var(--radius-full)!important}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a8c;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;z-index:9000;padding:20px;animation:fadeIn .2s ease}.modal{background:var(--surface);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);width:100%;max-width:480px;animation:scaleIn .2s 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var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);z-index:5000;min-width:160px;padding:4px;animation:scaleIn .12s ease}.ctx-item{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:var(--radius-sm);font-size:13px;font-weight:500;cursor:pointer;color:var(--text-primary);transition:background .15s}.ctx-item:hover{background:var(--surface2)}.ctx-item.danger{color:var(--danger)}.ctx-item.danger:hover{background:#fee2e2}.lightbox{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000eb;display:flex;align-items:center;justify-content:center;z-index:9999;animation:fadeIn .2s ease;cursor:zoom-out}.lightbox img{max-width:90vw;max-height:90vh;object-fit:contain;border-radius:var(--radius)}.settings-item{display:flex;align-items:center;gap:12px;padding:12px 14px;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);cursor:pointer;transition:var(--transition);text-align:left;width:100%}.settings-item:hover{border-color:var(--primary);background:var(--primary-light)}.settings-icon{width:36px;height:36px;border-radius:var(--radius-sm);background:var(--surface2);display:flex;align-items:center;justify-content:center;flex-shrink:0}@media (max-width: 767px){.sidebar-panel{width:100%!important;min-width:100%!important;position:absolute;left:0;top:0;bottom:0;z-index:10;display:flex}.chat-panel{position:absolute;top:0;right:0;bottom:0;left:0;z-index:20;display:none}.app-container.has-active-chat .sidebar-panel{display:none}.app-container.has-active-chat .chat-panel{display:flex}.emoji-picker{width:calc(100vw - 32px);left:16px}.msg-bubble{max-width:80%}}@media (min-width: 1200px){:root{--sidebar-width: 380px}}.toast-container{position:fixed;top:20px;right:20px;z-index:99999;display:flex;flex-direction:column;gap:8px;pointer-events:none}.toast{padding:12px 18px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);font-size:13.5px;font-weight:500;display:flex;align-items:center;gap:10px;animation:slideInRight .25s ease,fadeIn .25s ease;pointer-events:all;max-width:320px}.toast.success{border-left:3px solid var(--accent)}.toast.error{border-left:3px solid var(--danger)}.toast.info{border-left:3px solid var(--primary)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.flex-1{flex:1}.min-w-0{min-width:0}.gap-2{gap:8px}.gap-3{gap:12px}.overflow-hidden{overflow:hidden}.text-ellipsis{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.font-bold{font-weight:700}.text-muted{color:var(--text-muted)}.text-sm{font-size:12px}.mt-auto{margin-top:auto}.w-full{width:100%}.p-4{padding:16px}.rounded-full{border-radius:var(--radius-full)}.auth-page{min-height:100dvh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#e8f4fd,#bde0f8 40%,#d1e8f5);padding:20px}[data-theme=dark] .auth-page{background:linear-gradient(135deg,#0a0f1a,#0d1b2e)}.auth-card{background:var(--surface);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);padding:36px 40px;width:100%;max-width:400px;animation:scaleIn .3s ease}@media (max-width: 480px){.auth-card{padding:28px 24px;border-radius:var(--radius-lg)}}.date-separator{display:flex;align-items:center;justify-content:center;margin:14px 0 8px}.date-separator:before,.date-separator:after{display:none}.date-separator span{font-size:11.5px;font-weight:500;color:#fff;padding:4px 12px;background:#00000038;border-radius:20px;white-space:nowrap;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}[data-theme=dark] .date-separator span{background:#ffffff1a}.msg-row.mine .msg-bubble{border-radius:18px 18px 4px}.msg-row.other .msg-bubble{border-radius:18px 18px 18px 4px}.read-ticks{display:inline-flex;align-items:center;font-size:13px;line-height:1;margin-left:2px}.read-ticks.sent{color:#ffffff8c}.read-ticks.read{color:#87ceeb}.msg-time-row{display:flex;align-items:center;justify-content:flex-end;gap:2px;margin-top:3px}.emoji-picker{position:absolute;bottom:calc(100% + 10px);left:8px;width:310px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);z-index:200;display:grid;grid-template-columns:repeat(8,1fr);padding:10px;gap:2px;max-height:260px;overflow-y:auto;animation:fadeIn .15s ease}.emoji-btn{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:8px;font-size:19px;cursor:pointer;transition:all .1s;background:none;border:none;padding:0}.emoji-btn:hover{background:var(--surface2);transform:scale(1.15)}.online-dot{width:11px;height:11px;background:#4caf50;border:2.5px solid var(--surface)}.msg-row:hover .reply-hover-btn{opacity:1!important}.unread-badge{background:var(--primary);color:#fff;font-size:11px;font-weight:700;min-width:20px;height:20px;padding:0 5px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center}.btn-send:not(:disabled):hover{transform:scale(1.08);box-shadow:0 4px 14px rgba(var(--primary-rgb),.35)}.ctx-menu{border-radius:14px;box-shadow:0 8px 28px #0000002e;min-width:185px}.ctx-item{padding:11px 16px;font-size:13.5px}.typing-indicator{box-shadow:0 2px 8px #00000014;border:none}.typing-dot{width:7px;height:7px;border-radius:50%;background:#bbb}.reply-preview{background:#0000000f;border-left:3px solid var(--primary);border-radius:0 8px 8px 0;padding:6px 8px;margin-bottom:6px;font-size:12.5px}.msg-row.mine .reply-preview{background:#ffffff26;border-left-color:#ffffff8c}.sidebar-item{border-radius:0!important;margin:0!important;padding:10px 14px!important}