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.5rem;text-align:center;letter-spacing:-.02em}.gemini-headline{font-size:3rem;font-weight:500;color:#444746;margin:0 0 3rem;text-align:center;letter-spacing:-.02em}[data-theme=dark] .gemini-headline{color:#e3e3e3}.central-input-wrapper{width:100%;position:relative;margin-bottom:2rem}.gemini-input-box{width:100%;background:var(--input-bg);border:1px solid transparent;border-radius:24px;padding:1.25rem 1.5rem 3.5rem;box-shadow:0 2px 6px #0000000d,0 0 0 1px #0000000d;position:relative;transition:box-shadow .2s;display:flex;flex-direction:column}.gemini-input-box:focus-within{box-shadow:0 4px 12px #0000001a,0 0 0 1px #0000001a}[data-theme=dark] .gemini-input-box:focus-within{background-color:#1e293b;border-color:#60a5fa4d}.central-textarea{border:none;background:transparent;width:100%;resize:none;font-size:1.1rem;line-height:1.5;color:var(--sheet-text);outline:none;padding:4px 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1rem!important;height:60px;box-sizing:border-box}.mobile-close-btn{background:transparent!important;border:none!important;padding:8px!important;border-radius:50%!important;color:var(--sheet-text)!important;cursor:pointer!important;display:flex!important;align-items:center!important;justify-content:center!important;width:40px!important;height:40px!important}.mobile-close-btn{display:none!important}@media(max-width:768px){.mobile-close-btn{display:flex!important}}.sync-google-btn{display:flex;align-items:center;gap:.5rem;background-color:#fff;color:#1a73e8;border:1px solid #dadce0;padding:.4rem .8rem;border-radius:4px;font-family:var(--font-ui);font-weight:500;font-size:.875rem;cursor:pointer;transition:all .2s ease;box-shadow:0 1px 2px #3c40434d;margin-right:.5rem}.sync-google-btn:hover:not(:disabled){background-color:#f8faff;box-shadow:0 1px 3px #3c40434d;color:#174ea6}.sync-google-btn:active:not(:disabled){background-color:#f1f3f4;box-shadow:inset 0 1px 2px #3c40431a}.sync-google-btn:disabled{opacity:.6;cursor:default;box-shadow:none;background-color:#f1f3f4;color:#80868b}[data-theme=dark] .sync-google-btn{background-color:#303134;color:#8ab4f8;border-color:#5f6368}[data-theme=dark] .sync-google-btn:hover:not(:disabled){background-color:#3c4043}.sync-icon{width:16px;height:16px}.sync-icon.spinning{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}:root{--header-height: 64px}.app-shell{display:grid;height:100vh;width:100vw;overflow:hidden;grid-template-rows:var(--header-height) 1fr;grid-template-columns:var(--sidebar-width, 300px) 1fr;grid-template-areas:"sidebar header" "sidebar content";background-color:var(--sidebar-bg);color:var(--sheet-text)}.shell-header{grid-area:header;position:relative;z-index:50;border-bottom:1px solid var(--border-color);background-color:var(--sidebar-bg);display:flex;align-items:center;transition:transform .3s ease}.shell-header .unified-header{position:static!important;width:100%!important;height:100%!important;z-index:auto!important;top:auto!important;left:auto!important;margin:0!important;box-shadow:none!important;background:transparent!important}.shell-sidebar{grid-area:sidebar;position:relative;overflow:hidden;border-right:1px solid var(--border-color);background-color:var(--sidebar-bg);z-index:40;display:flex;flex-direction:column}.shell-content{grid-area:content;position:relative;overflow:hidden;background-color:var(--sheet-bg);z-index:10;display:flex;flex-direction:column}.shell-resizer{position:absolute;top:0;right:-2px;bottom:0;width:5px;cursor:col-resize;z-index:100;transition:background .2s}.shell-resizer:hover,.shell-resizer:active{background-color:var(--primary-color)}.shell-overlays{position:fixed;top:0;left:var(--sidebar-width, 0px);width:calc(100% - var(--sidebar-width, 0px));height:0;z-index:9000;pointer-events:none}.shell-overlays>*{pointer-events:auto}.app-shell[data-sidebar-open=false]{grid-template-columns:0px 1fr}.app-shell[data-sidebar-open=false] .shell-sidebar{visibility:hidden}@media(max-width:768px){.app-shell{display:flex;flex-direction:column}.shell-header{flex-shrink:0;width:100%}.shell-sidebar{display:none}.shell-content{flex:1;width:100%}}