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12px;font-size:13px}.logout-btn{color:var(--text-muted);cursor:pointer;text-underline-offset:2px;background:0 0;border:none;padding:0;font-size:12px;text-decoration:underline}.logout-btn:hover{color:var(--text)}.header-row{justify-content:space-between;align-items:baseline;display:flex}.update-banner{border-radius:var(--radius);flex-wrap:wrap;align-items:center;gap:6px;margin-top:6px;padding:5px 8px;font-size:10px;line-height:1.3;display:flex}.update-banner--available,.update-banner--updating{color:oklch(40% .12 70);background:oklch(95% .06 85)}.update-banner--restart-needed{color:oklch(38% .12 145);background:oklch(94% .06 145)}.update-banner--restarting{background:var(--border);color:var(--text-muted)}.update-banner button{border-radius:var(--radius);cursor:pointer;background:var(--accent);color:#fff;font-size:10px;font-weight:600;font-family:var(--font);border:none;padding:2px 8px;transition:background .15s}.update-banner button:hover{background:var(--accent-hover)}.update-banner button:disabled{opacity:.5;cursor:not-allowed}.spinner--dark{border-color:currentColor #00000026 #00000026}.update-err{color:var(--danger);width:100%;font-size:9px}.mobile-tab-bar,.mobile-render-area{display:none}@media (width<=640px){.layout{flex-direction:column}.sidebar{width:100%;min-width:unset;border-right:none;border-bottom:1px solid var(--border);flex:1;order:1;overflow:hidden}.preview-panel{flex:1;order:2;padding:16px}.preview-player-wrapper{width:100%;max-width:100%;height:auto;max-height:calc(100svh - 140px)}.mobile-tab-bar{border-top:1px solid var(--border);background:var(--sidebar-bg);flex-shrink:0;order:3;display:flex}.mobile-tab{font:600 12px/1 var(--font);color:var(--text-muted);cursor:pointer;background:0 0;border:none;flex:1;padding:13px 8px;transition:color .15s,background .15s}.mobile-tab.active{color:var(--accent);background:var(--accent-light)}.mobile-tab:hover:not(.active){color:var(--text)}.layout:not(.layout--preview) .preview-panel,.layout.layout--preview 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