*{box-sizing:border-box;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-tertiary);color:var(--text-primary);margin:0;font-family:Inter,sans-serif;transition:background-color .3s,color .3s}.infinite-grid{background:var(--bg-tertiary);flex-direction:column;width:100%;height:calc(100vh - 70px);transition:background-color .3s;display:flex}.grid-canvas{cursor:cell;width:100%;height:100%}.cell-editor{border:2px solid var(--accent-primary);background:var(--input-bg);color:var(--text-primary);z-index:1000;outline:none;padding:2px 4px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:13px;display:none;position:absolute}.info-panel{background:var(--bg-primary);box-shadow:0 4px 20px var(--shadow-color);z-index:3000;border:1px solid var(--border-color);border-radius:8px;padding:12px 16px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:12px;transition:background-color .3s,border-color .3s;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%)}.info-panel.hidden{display:none}.info-panel>div{color:var(--text-primary);margin-bottom:4px}.info-panel>div:last-child{color:var(--text-muted);margin-bottom:0}.info-section{border-bottom:1px solid var(--border-light);margin-bottom:16px;padding-bottom:12px}.demo-controls{max-width:280px}.demo-controls h3{color:var(--accent-primary);margin:0 0 12px;font-size:14px;font-weight:600}.demo-controls h4{color:var(--text-primary);margin:12px 0 8px;font-size:12px;font-weight:500}.demo-button{background:var(--accent-primary);color:#fff;cursor:pointer;border:none;border-radius:4px;width:100%;margin-bottom:8px;padding:8px 12px;font-size:12px;font-weight:500;transition:background .2s;display:block}.demo-button:hover:not(:disabled){background:var(--accent-hover)}.demo-button:disabled{background:var(--text-muted);cursor:not-allowed}.jump-controls{margin-top:16px}.jump-button{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color);cursor:pointer;border-radius:3px;margin:2px;padding:4px 8px;font-size:11px;transition:all .2s;display:inline-block}.jump-button:hover{background:var(--bg-hover);border-color:var(--accent-primary)}.jump-input{margin-top:12px}.jump-input label{color:var(--text-primary);margin-bottom:4px;font-size:11px;display:block}.jump-input input{border:1px solid var(--border-color);background:var(--input-bg);width:100%;color:var(--text-primary);border-radius:4px;padding:6px 8px;font-size:12px;transition:border-color .2s,box-shadow .2s}.jump-input input:focus{border-color:var(--accent-primary);box-shadow:0 0 0 2px var(--selection-bg);outline:none}.file-menu-container{display:inline-block;position:relative}.file-menu-button{color:var(--text-primary);cursor:pointer;background:0 0;border:none;border-radius:4px;padding:6px 12px;font-size:14px;font-weight:400;transition:background-color .2s}.file-menu-button:hover,.file-menu-button.active{background-color:var(--bg-hover)}.file-menu-dropdown{background-color:var(--bg-primary);border:1px solid var(--border-color);min-width:240px;box-shadow:0 4px 16px var(--shadow-color);z-index:3000;border-radius:8px;padding:6px 0;animation:.15s ease-out dropdownFade;position:absolute;top:100%;left:0}@keyframes dropdownFade{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.menu-item{cursor:pointer;align-items:center;padding:8px 16px;transition:background-color .15s;display:flex;position:relative}.menu-item:hover{background-color:var(--bg-hover)}.menu-item.has-submenu{padding-right:32px}.menu-icon{text-align:center;width:24px;margin-right:8px;font-size:14px}.menu-label{color:var(--text-primary);flex:1;font-size:13px}.menu-description{color:var(--text-muted);margin-left:8px;font-size:11px}.menu-shortcut{color:var(--text-muted);margin-left:auto;font-size:12px}.submenu-arrow{color:var(--text-muted);font-size:10px;position:absolute;right:12px}.menu-separator{background-color:var(--border-color);height:1px;margin:6px 0}.submenu{background-color:var(--bg-primary);border:1px solid var(--border-color);min-width:200px;box-shadow:0 4px 16px var(--shadow-color);z-index:3001;border-radius:8px;padding:6px 0;animation:.15s ease-out submenuFade;position:absolute;top:0;left:100%}@keyframes submenuFade{0%{opacity:0;transform:translate(-4px)}to{opacity:1;transform:translate(0)}}.submenu .menu-item{flex-direction:column;align-items:flex-start;padding:10px 16px}.submenu .menu-label{font-weight:500}.submenu .menu-description{margin-top:2px;margin-left:0}[data-theme=dark] .file-menu-dropdown,[data-theme=dark] .submenu{box-shadow:0 4px 20px #00000080}[data-theme=dark] .menu-item:hover{background-color:var(--bg-active)}.help-submenu .menu-item{flex-direction:row;align-items:center;padding:8px 16px}.help-submenu .menu-label{font-weight:400}.help-modal-overlay{z-index:5000;background-color:#00000080;justify-content:center;align-items:center;animation:.2s ease-out modalFadeIn;display:flex;position:fixed;inset:0}@keyframes modalFadeIn{0%{opacity:0}to{opacity:1}}.help-modal{background-color:var(--bg-primary);border:1px solid var(--border-color);box-shadow:0 8px 32px var(--shadow-color);border-radius:12px;flex-direction:column;width:90%;max-width:700px;max-height:80vh;animation:.2s ease-out modalSlideIn;display:flex}@keyframes modalSlideIn{0%{opacity:0;transform:scale(.95)translateY(-10px)}to{opacity:1;transform:scale(1)translateY(0)}}.help-modal-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.help-modal-header h2{color:var(--text-primary);margin:0;font-size:18px;font-weight:600}.help-modal-close{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:4px;padding:4px 8px;font-size:24px;line-height:1;transition:background-color .15s,color .15s}.help-modal-close:hover{background-color:var(--bg-hover);color:var(--text-primary)}.help-modal-content{flex:1;padding:16px 20px;overflow-y:auto}.help-table{border-collapse:collapse;width:100%;font-size:13px}.help-table th{text-align:left;background-color:var(--bg-secondary);color:var(--text-primary);border-bottom:1px solid var(--border-color);padding:10px 12px;font-weight:600}.help-table td{border-bottom:1px solid var(--border-color);color:var(--text-primary);padding:8px 12px}.help-table tbody tr:hover{background-color:var(--bg-hover)}.shortcut-key,.function-name{color:var(--accent-primary);white-space:nowrap;font-family:SF Mono,Monaco,Cascadia Code,monospace;font-weight:500}.function-category{margin-bottom:24px}.function-category:last-child{margin-bottom:0}.function-category h3{color:var(--text-primary);border-bottom:2px solid var(--accent-primary);margin:0 0 12px;padding-bottom:8px;font-size:15px;font-weight:600}.functions-list{padding-bottom:8px}[data-theme=dark] .help-modal-overlay{background-color:#000000b3}[data-theme=dark] .help-modal{box-shadow:0 8px 40px #0009}.sheet-tabs-container{background-color:var(--bg-secondary);border-top:1px solid var(--border-color);z-index:100;align-items:center;padding-left:40px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:12px;transition:background-color .3s,border-color .3s;display:flex;position:fixed;bottom:0;left:0;right:0}.sheet-tabs{scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb)var(--scrollbar-track);flex:1;align-items:center;display:flex;overflow-x:auto}.sheet-tabs::-webkit-scrollbar{height:4px}.sheet-tabs::-webkit-scrollbar-track{background:var(--scrollbar-track)}.sheet-tabs::-webkit-scrollbar-thumb{background-color:var(--scrollbar-thumb);border-radius:3px}.sheet-tab{background-color:var(--bg-primary);border-right:1px solid var(--border-color);cursor:pointer;border-bottom:2px solid #0000;align-items:center;min-width:80px;max-width:180px;height:100%;padding:8px 12px;transition:background-color .2s,border-color .2s;display:flex;position:relative}.sheet-tab:hover:not(.active){background-color:var(--bg-hover)}.sheet-tab.active{background-color:var(--bg-primary);border-bottom:2px solid var(--accent-primary);font-weight:500}.sheet-name{white-space:nowrap;text-overflow:ellipsis;color:var(--text-primary);-webkit-user-select:none;user-select:none;flex:1;overflow:hidden}.sheet-tab.active .sheet-name{color:var(--accent-primary)}.sheet-name-input{border:1px solid var(--accent-primary);font-family:inherit;font-size:inherit;background:var(--input-bg);color:var(--text-primary);border-radius:2px;outline:none;flex:1;padding:1px 3px}.delete-sheet-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;width:14px;height:14px;margin-left:6px;padding:0;font-size:14px;line-height:1;transition:color .2s;display:none}.delete-sheet-btn:hover{color:var(--accent-danger-hover)}.add-sheet-btn{cursor:pointer;width:28px;height:28px;color:var(--text-secondary);background-color:#0000;border:none;justify-content:center;align-items:center;font-size:16px;transition:background-color .2s,color .2s;display:flex}.add-sheet-btn:hover{background-color:var(--bg-active);color:var(--accent-primary)}.sheet-navigation{border-left:1px solid var(--border-color);align-items:center;padding:0 4px;display:flex}.sheet-nav-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:2px;padding:4px 6px;font-size:12px;transition:background-color .2s,color .2s}.sheet-nav-btn:hover:not(:disabled){background-color:var(--bg-active);color:var(--accent-primary)}.sheet-nav-btn:disabled{color:var(--text-muted);cursor:not-allowed}.splash-overlay{z-index:10000;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#0000003d;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.splash-modal{background-color:var(--bg-primary);border:1px solid var(--border-color);border-radius:16px;width:100%;max-width:520px;margin:20px;animation:.3s ease-out splashSlideIn;overflow:hidden;box-shadow:0 20px 60px #0006}@keyframes splashSlideIn{0%{opacity:0;transform:translateY(-20px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}.splash-header{text-align:center;padding:28px 32px 20px}.splash-header h1{color:#fff;letter-spacing:-.5px;text-transform:none;font-size:32px;font-style:normal;font-weight:500;line-height:1.4em;text-decoration:none}.splash-subtitle{color:var(--text-muted);margin:6px 0 0;font-size:14px}.splash-auth{justify-content:center;padding:0 24px 16px;display:flex}.auth-loading{color:var(--text-muted);font-size:13px}.auth-login{color:#fff;border:1px solid var(--border-color);cursor:pointer;background:0 0;border-radius:8px;align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:500;transition:all .15s;display:flex}.auth-login:hover{background:var(--bg-hover)}.auth-login svg{flex-shrink:0}.auth-user{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:8px;align-items:center;gap:10px;padding:6px 10px;display:flex}.auth-avatar{border-radius:50%;width:28px;height:28px}.auth-name{color:var(--text-primary);text-overflow:ellipsis;white-space:nowrap;max-width:150px;font-size:13px;overflow:hidden}.auth-logout{color:var(--text-muted);border:1px solid var(--border-color);cursor:pointer;background:0 0;border-radius:6px;padding:6px 12px;font-size:12px;transition:all .15s}.auth-logout:hover{background:var(--bg-hover);color:var(--text-primary);border-color:var(--text-muted)}.splash-content{padding:0 24px 24px}.drop-zone{border:1px dashed var(--border-color);text-align:center;cursor:pointer;background-color:var(--bg-secondary);border-radius:12px;padding:36px 24px;transition:all .2s}.drop-zone:hover{border-color:var(--accent-primary);background-color:var(--bg-hover)}.drop-zone.dragging{border-color:var(--accent-primary);background-color:var(--bg-active);border-style:solid}.drop-zone.loading{cursor:wait;pointer-events:none}.drop-icon{color:var(--text-muted);margin-bottom:12px}.drop-zone:hover .drop-icon,.drop-zone.dragging .drop-icon{color:var(--accent-primary)}.drop-text{color:var(--text-primary);margin:0 0 6px;font-size:15px;font-weight:500}.drop-link{color:var(--text-muted);margin:0 0 12px;font-size:13px}.upload-link{color:var(--accent-primary);cursor:pointer;text-decoration:underline}.upload-link:hover{color:var(--accent-hover)}.upload-formats{color:var(--text-muted);opacity:.7;margin:0;font-size:12px}.loading-spinner{flex-direction:column;align-items:center;gap:12px;display:flex}.spinner{border:3px solid var(--border-color);border-top-color:var(--accent-primary);border-radius:50%;width:32px;height:32px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.loading-spinner p{color:var(--text-muted);margin:0;font-size:14px}.sample-section{margin-top:20px}.sample-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin:0 0 10px;font-size:12px;font-weight:500}.sample-list{flex-direction:column;gap:8px;display:flex}.sample-item{background:var(--bg-secondary);border:1px solid var(--border-color);cursor:pointer;text-align:left;border-radius:10px;align-items:center;gap:12px;width:100%;padding:14px 16px;transition:all .15s;display:flex}.sample-item:hover{background:var(--bg-hover);border-color:var(--accent-primary)}.sample-item:hover .sample-arrow{color:var(--accent-primary);transform:translate(2px)}.sample-item:disabled{opacity:.5;cursor:not-allowed}.sample-icon{background:var(--bg-primary);width:36px;height:36px;color:var(--accent-primary);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.sample-info{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.sample-name{color:var(--text-primary);font-size:14px;font-weight:500}.sample-description{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.sample-arrow{color:var(--text-muted);flex-shrink:0;transition:all .15s}.splash-skip{width:100%;color:var(--text-muted);cursor:pointer;background:0 0;border:none;padding:14px;font-size:13px;transition:all .15s;display:block}.splash-skip:hover{background-color:var(--bg-hover);color:var(--text-primary)}[data-theme=dark] .splash-overlay{background-color:#00000040}[data-theme=dark] .splash-modal{box-shadow:0 20px 60px #0009}[data-theme=dark] .sample-icon{background:var(--bg-tertiary)}.workbook-signin-prompt{text-align:center;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:12px;flex-direction:column;align-items:center;padding:32px 24px;display:flex}.workbook-signin-icon{color:var(--accent-primary);margin-bottom:16px}.workbook-signin-title{color:var(--text-primary);margin:0 0 8px;font-size:20px;font-weight:600}.workbook-signin-description{color:var(--text-muted);margin:0 0 24px;font-size:14px;line-height:1.5}.workbook-signin-button{border:1px solid var(--border-color);color:#fff;cursor:pointer;background:0 0;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:12px 32px;font-size:15px;font-weight:500;transition:all .15s;display:inline-flex}.workbook-signin-button:hover{background:var(--bg-hover)}.workbook-signin-button svg{flex-shrink:0}.login-prompt-overlay{z-index:10001;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#0000003d;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.login-prompt-modal{background-color:var(--bg-primary);border:1px solid var(--border-color);text-align:center;border-radius:16px;width:100%;max-width:360px;margin:20px;padding:32px;animation:.2s ease-out loginPromptSlideIn;position:relative;box-shadow:0 20px 60px #0006}@keyframes loginPromptSlideIn{0%{opacity:0;transform:translateY(-10px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}.login-prompt-close{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:6px;justify-content:center;align-items:center;padding:6px;transition:all .15s;display:flex;position:absolute;top:12px;right:12px}.login-prompt-close:hover{background:var(--bg-hover);color:var(--text-primary)}.login-prompt-icon{color:var(--accent-primary);margin-bottom:16px}.login-prompt-title{color:var(--text-primary);margin:0 0 8px;font-size:20px;font-weight:600}.login-prompt-description{color:var(--text-muted);margin:0 0 24px;font-size:14px;line-height:1.5}.login-prompt-signin{width:100%;color:var(--text-primary);border:1px solid var(--border-color);cursor:pointer;background:0 0;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-size:15px;font-weight:500;transition:all .15s;display:inline-flex}.login-prompt-signin:hover{background:var(--bg-hover)}.login-prompt-signin svg{flex-shrink:0}.login-prompt-checkbox{color:var(--text-muted);cursor:pointer;-webkit-user-select:none;user-select:none;justify-content:center;align-items:center;gap:8px;margin-top:20px;font-size:13px;display:flex}.login-prompt-checkbox input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent-primary);cursor:pointer}.login-prompt-checkbox:hover span{color:var(--text-primary)}[data-theme=dark] .login-prompt-overlay{background-color:#00000040}[data-theme=dark] .login-prompt-modal{box-shadow:0 20px 60px #0009}:root{--bg-primary:#fff;--bg-secondary:#f8f9fa;--bg-tertiary:#f3f4f6;--bg-hover:#f1f3f4;--bg-active:#e8eaed;--border-color:#dadce0;--border-light:#e0e0e0;--text-primary:#3c4043;--text-secondary:#5f6368;--text-muted:#666;--accent-primary:#1a73e8;--accent-hover:#1557b0;--accent-danger:#dc3545;--accent-danger-hover:#d93025;--scrollbar-track:#f1f1f1;--scrollbar-thumb:#c1c1c1;--shadow-color:#0000001a;--cell-border:#e2e8f0;--header-bg:#f8fafc;--header-text:#64748b;--selection-bg:#1a73e81a;--input-bg:#fff}[data-theme=dark]{--bg-primary:#1a1b26;--bg-secondary:#16161e;--bg-tertiary:#24283b;--bg-hover:#292e42;--bg-active:#343b58;--border-color:#414868;--border-light:#3b4261;--text-primary:#c0caf5;--text-secondary:#a9b1d6;--text-muted:#565f89;--accent-primary:#7aa2f7;--accent-hover:#89b4fa;--accent-danger:#f7768e;--accent-danger-hover:#ff7a93;--scrollbar-track:#1a1b26;--scrollbar-thumb:#414868;--shadow-color:#0006;--cell-border:#3b4261;--header-bg:#1f2335;--header-text:#7982a9;--selection-bg:#7aa2f726;--input-bg:#1a1b26}#root{background-color:var(--bg-tertiary);width:100%;height:100vh;color:var(--text-primary);margin:0;padding:0;transition:background-color .3s,color .3s;overflow:hidden}.map-container{z-index:1000;width:100vw!important;height:100vh!important;position:fixed!important;top:0!important;left:0!important}.theme-toggle{z-index:2000;background-color:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color);cursor:pointer;box-shadow:0 2px 4px var(--shadow-color);border-radius:4px;align-items:center;gap:6px;padding:8px 12px;font-size:14px;font-weight:700;transition:all .3s;display:flex;position:fixed;top:10px;right:120px}.theme-toggle:hover{background-color:var(--bg-hover);border-color:var(--accent-primary)}[data-theme=dark] .theme-toggle{border-color:#7aa2f7;box-shadow:0 0 10px #7aa2f733}[data-theme=dark] .theme-toggle:hover{box-shadow:0 0 15px #7aa2f766}.menu-bar{background-color:var(--bg-secondary);border-bottom:1px solid var(--border-color);z-index:2500;align-items:center;gap:4px;height:36px;padding:0 8px;transition:background-color .3s,border-color .3s;display:flex;position:fixed;top:0;left:0;right:0}.menu-bar-title{color:var(--text-primary);border-left:1px solid var(--border-color);margin-left:8px;padding:6px 12px;font-size:14px;font-weight:400}.menu-bar-spacer{flex:1}.menu-bar-button{border:1px solid var(--border-color);color:var(--text-primary);cursor:pointer;background:0 0;border-radius:4px;padding:4px 12px;font-size:12px;font-weight:500;transition:all .2s}.menu-bar-button:hover{background-color:var(--bg-hover);border-color:var(--accent-primary)}.theme-toggle-small{border:1px solid var(--border-color);cursor:pointer;color:#000;background:0 0;border-radius:4px;justify-content:center;align-items:center;margin-right:4px;padding:4px 8px;font-size:16px;transition:all .2s;display:flex}[data-theme=dark] .theme-toggle-small{color:#fff}.theme-toggle-small:hover{background-color:var(--bg-hover);border-color:var(--accent-primary)}[data-theme=dark] .theme-toggle-small:hover{box-shadow:0 0 8px #7aa2f74d}