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var(--border)}.video-call-area{position:fixed;top:0;right:0;bottom:0;left:0;z-index:300;background:#0a0f14;display:flex;align-items:center;justify-content:center;overflow:hidden}.video-call-area .remote-video-bg{position:absolute;top:-20px;right:-20px;bottom:-20px;left:-20px;width:calc(100% + 40px);height:calc(100% + 40px);object-fit:cover;filter:blur(28px) brightness(.3) saturate(1.3);pointer-events:none}.remote-video{position:relative;z-index:1;max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;border-radius:6px}.local-video-wrap{z-index:10;border-radius:14px;overflow:hidden;border:2px solid rgba(255,255,255,.2);box-shadow:0 6px 24px #0009;transition:box-shadow .18s,border-color .18s}.local-video-wrap:hover{box-shadow:0 6px 28px #3390ec66;border-color:#3390ec80}.local-video-wrap:active{cursor:grabbing!important}.local-video{width:100%;height:100%;object-fit:cover}.video-controls{position:absolute;bottom:28px;left:50%;transform:translate(-50%);z-index:3;display:flex;gap:14px;align-items:center;background:#0d111799;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:50px;padding:10px 20px;border:1px solid rgba(255,255,255,.08)}.lightbox{position:fixed;top:0;right:0;bottom:0;left:0;z-index:400;background:#000000f2;display:flex;align-items:center;justify-content:center;cursor:pointer;animation:fadeIn .2s ease}.lightbox img{max-width:92vw;max-height:92vh;border-radius:8px;object-fit:contain}.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--bg-0);position:relative;gap:12px}.empty-state-icon{display:flex;gap:4px}.empty-state-text{font-size:14px;color:var(--text-muted)}.input-field{width:100%;background:var(--bg-3);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 14px;color:var(--text-primary);font-size:14px;outline:none;transition:border-color .15s,box-shadow .15s;font-family:inherit}.input-field:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.input-field::placeholder{color:var(--text-muted)}.input-group{margin-bottom:14px}.input-label{display:block;font-size:11px;color:var(--text-muted);margin-bottom:6px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.btn{width:100%;padding:12px 20px;border-radius:var(--radius-sm);border:none;cursor:pointer;font-size:14px;font-weight:600;font-family:inherit;transition:all .18s;display:flex;align-items:center;justify-content:center;gap:8px}.btn:disabled{opacity:.48;cursor:not-allowed}.btn:active:not(:disabled){transform:scale(.97)}.btn-primary{background:linear-gradient(135deg,var(--accent) 0%,#1a6bbf 100%);color:#fff;box-shadow:0 2px 12px var(--accent-glow)}.btn-primary:hover:not(:disabled){box-shadow:0 4px 20px var(--accent-glow);transform:translateY(-1px)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover:not(:disabled){background:var(--bg-3)}.btn-icon{background:transparent;border:none;cursor:pointer;color:var(--text-secondary);padding:6px;border-radius:10px;display:flex;align-items:center;justify-content:center;transition:all .15s;width:34px;height:34px;flex-shrink:0}.btn-icon:hover{background:var(--bg-3);color:var(--text-primary)}.btn-icon:active{transform:scale(.9)}.error-msg{background:#e539351a;color:var(--red);border:1px solid rgba(229,57,53,.2);border-radius:8px;padding:10px 14px;font-size:13px;margin-bottom:14px;animation:shakeX .4s ease}@keyframes shakeX{0%,to{transform:translate(0)}20%{transform:translate(-6px)}60%{transform:translate(6px)}}.divider{height:1px;background:var(--border);margin:12px 0}.user-result{display:flex;align-items:center;gap:10px;padding:9px 6px;border-radius:12px;transition:background .12s}.user-result:hover{background:var(--bg-3)}.user-result-info{flex:1;min-width:0}.user-result-name{font-size:14px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-result-sub{font-size:12px;color:var(--text-muted);margin-top:1px}.spinner{width:18px;height:18px;border-radius:50%;border:2px solid rgba(255,255,255,.2);border-top-color:#fff;display:inline-block;animation:spin .65s linear infinite}.mobile-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;z-index:19;background:#00000080;backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px)}.mobile-menu-btn{display:none!important}body[data-light]{--glass: rgba(240,242,245,.85);--glass-border: rgba(0,0,0,.08)}body[data-light] .unread-badge,body[data-light] .message-wrap.out .message-bubble{color:#fff}body[data-light] .message-wrap.out .message-time{color:#ffffffb3}body[data-light] .online-dot{border-color:var(--bg-1)}body[data-light] .messages-date-divider span{background:#ffffffbf;color:var(--text-secondary)}body[data-light] .send-btn{background:var(--accent)}body[data-light] .sidebar-header,body[data-light] .sidebar-nav,body[data-light] .input-area{background:#f0f2f5d9}body[data-light] .chat-header{background:#f5f7fae0}body[data-light] .drop-overlay-inner{background:#ffffffe6}body[data-light] .auth-card{background:#ffffffd9}@keyframes slideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}@keyframes flashRed{0%,to{background:#e539351a}50%{background:#e539354d}}@keyframes slideInLeft{0%{transform:translate(-100%)}to{transform:translate(0)}}@media (max-width: 700px){.sidebar{position:fixed;left:0;top:0;bottom:0;transform:translate(-100%);box-shadow:4px 0 32px #00000080;z-index:30;width:86vw;min-width:unset;max-width:340px}.sidebar.open{transform:translate(0);animation:slideInLeft .28s cubic-bezier(.4,0,.2,1)}.mobile-overlay{display:block}.mobile-menu-btn{display:flex!important}.message-bubble{max-width:84%}.auth-card{padding:28px 20px}.call-btn{width:54px;height:54px}}