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8px}.channel-sidebar{width:100%;max-width:100%}.sidebar-wrapper{width:100%;flex:1}.sidebar-wrapper.mobile-hidden{display:none}.main-content{width:100%;max-width:100%;flex:1}.main-content.mobile-hidden,.member-list{display:none}.mobile-menu-btn{display:block;background:none;border:none;color:var(--interactive-normal);cursor:pointer;margin-right:12px;padding:4px}.chat-header-icon{display:none}}@media (min-width: 769px){.mobile-menu-btn{display:none}}.tooltip-wrapper{position:relative;display:inline-flex}.tooltip{position:absolute;bottom:calc(100% + 8px);left:50%;transform:translate(-50%);background:var(--background-floating);color:var(--text-normal);padding:6px 10px;border-radius:5px;font-size:13px;font-weight:500;white-space:nowrap;pointer-events:none;opacity:0;transition:opacity .1s;z-index:1000;box-shadow:var(--elevation-high)}.tooltip-wrapper:hover .tooltip{opacity:1}.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:var(--text-muted);padding:48px}.empty-state-icon{font-size:64px;opacity:.3}.empty-state-title{font-size:24px;font-weight:700;color:var(--header-primary)}.empty-state-desc{font-size:16px;text-align:center;max-width:400px}.welcome-screen{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--background-primary);padding:32px}.welcome-logo{width:100px;height:100px;background:var(--brand-500);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:48px;margin-bottom:24px}.welcome-title{font-size:28px;font-weight:800;color:var(--header-primary);margin-bottom:8px}.welcome-subtitle{font-size:16px;color:var(--text-muted)}.no-channel{flex:1;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:12px}.no-channel-icon{font-size:72px;opacity:.2}.no-channel-text{font-size:18px;color:var(--header-secondary);font-weight:600}.context-menu{position:fixed;background:var(--background-floating);border-radius:4px;padding:6px 8px;min-width:180px;box-shadow:var(--shadow-high);z-index:2000;animation:fadeIn .1s ease}.context-menu-item{padding:8px;border-radius:2px;cursor:pointer;font-size:14px;color:var(--text-normal);display:flex;align-items:center;gap:8px;transition:background .1s}.context-menu-item:hover{background:var(--brand-500);color:#fff}.context-menu-item.danger:hover{background:var(--status-danger-background)}.context-menu-separator{height:1px;background:var(--border-muted);margin:4px 0}.spinner{display:inline-block;width:40px;height:40px;border:4px solid rgba(255,255,255,.1);border-top-color:var(--brand-500);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-screen{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:var(--background-tertiary);flex-direction:column;gap:24px}.loading-screen-logo{font-size:64px;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.flex{display:flex}.flex-col{flex-direction:column}.flex-1{flex:1}.items-center{align-items:center}.gap-8{gap:8px}.mt-4{margin-top:4px}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}