.update-banner{position:fixed;bottom:-100px;left:0;right:0;background:var(--primary-color, #4a90d9);color:#fff;padding:12px 16px;z-index:10000;transition:bottom .3s ease-out;box-shadow:0 -2px 10px #0003}.update-banner.visible{bottom:0}@supports (padding-bottom: env(safe-area-inset-bottom)){.update-banner{padding-bottom:calc(12px + env(safe-area-inset-bottom))}}.update-banner-content{display:flex;align-items:center;justify-content:space-between;max-width:600px;margin:0 auto;gap:12px}.update-banner-message{font-size:14px;font-weight:500}.update-banner-actions{display:flex;gap:8px}.update-banner-btn{padding:8px 16px;border:none;border-radius:4px;font-size:14px;font-weight:500;cursor:pointer;transition:opacity .2s}.update-banner-btn:hover{opacity:.9}.update-banner-update{background:#fff;color:var(--primary-color, #4a90d9)}.update-banner-dismiss{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5)}.sync-status{display:flex;align-items:center;gap:6px;padding:4px 10px;border-radius:12px;font-size:12px;font-weight:500;background:var(--background-secondary, #f5f5f5);color:var(--text-secondary, #666);transition:all .2s ease}.sync-status--syncing{background:var(--primary-color, #4a90d9);color:#fff}.sync-status--syncing .sync-status-icon{animation:sync-spin 1s linear infinite}@keyframes sync-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.sync-status--error{background:#f44336;color:#fff}.sync-status--auth-error{background:#ff9800;color:#fff}.sync-status--offline{background:#9e9e9e;color:#fff}.sync-status-icon{display:inline-block;width:14px;text-align:center}.sync-status-count{opacity:.8}@media(prefers-color-scheme:dark){.sync-status{background:var(--background-secondary, #2a2a2a);color:var(--text-secondary, #aaa)}}