:root{--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--space-20:80px;--font-heading:"Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;--font-body:"Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono:"JetBrains Mono", "Consolas", monospace;--text-xs:.6875rem;--text-sm:.8125rem;--text-base:.8125rem;--text-lg:1rem;--text-xl:1.125rem;--text-2xl:1.25rem;--text-3xl:1.5rem;--text-4xl:1.875rem;--text-5xl:2.25rem;--leading-tight:1.2;--leading-normal:1.5;--leading-relaxed:1.6;--bg-deep:#e8e8e8;--bg:#e8e8e8;--bg-alt:#f3f2f1;--surface:#fff;--surface-2:#f3f2f1;--surface-glass:#fff;--surface-glass-border:#e1dfdd;--border:#e1dfdd;--border-bright:#d2d0ce;--text:#323130;--text-secondary:#605e5c;--text-muted:#a19f9d;--muted:#c8c6c4;--color-success:#107c41;--color-warning:#ca5010;--color-danger:#d13438;--color-info:#0078d4;--docs-primary:#2b579a;--docs-border:#2b579a4d;--docs-light:#185abd;--docs-dim:#ddeaf7;--sheets-primary:#217346;--sheets-border:#2173464d;--sheets-light:#107c41;--sheets-dim:#ddf2e3;--slides-primary:#b7472a;--slides-border:#b7472a4d;--slides-light:#c43e1c;--slides-dim:#fde7e9;--radius-sm:2px;--radius-md:4px;--radius-lg:6px;--radius-xl:8px;--radius-full:9999px;--shadow-sm:0 1px 2px #00000014;--shadow-md:0 2px 8px #0000001a;--shadow-lg:0 4px 16px #0000001f;--shadow-xl:0 8px 32px #00000024;--dur-fast:.1s;--dur-normal:.15s;--dur-slow:.25s;--ease-out:cubic-bezier(0, 0, .2, 1);--ease-in-out:cubic-bezier(.4, 0, .2, 1);--z-dropdown:100;--z-sticky:200;--z-modal:300;--z-popover:400;--z-toast:500;--sidebar-w:260px;--toolbar-h:48px;--statusbar-h:24px;--office-ribbon-bg:#f3f2f1;--office-ribbon-border:#d2d0ce;--office-ribbon-tab-active:#fff;--office-ribbon-tab-hover:#e1dfdd;--office-title-bar-height:32px;--office-ribbon-height:120px;--office-ribbon-collapsed-height:44px;--office-status-bar-height:24px;--office-quick-access-height:28px;--office-accent-word:#2b579a;--office-accent-excel:#217346;--office-accent-slides:#b7472a;--office-selection-blue:#0078d4;--office-focus-border:#0078d4}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:13px}body{font-family:var(--font-body);background:var(--bg);color:var(--text);line-height:var(--leading-normal);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}input,button,textarea,select{font-family:inherit}button{cursor:pointer;border:none;outline:none}a{color:inherit;text-decoration:none}ul{list-style:none}img{max-width:100%;display:block}::selection{color:#323130;background:#0078d440}.btn{justify-content:center;align-items:center;gap:var(--space-2);font-family:var(--font-body);font-weight:500;font-size:var(--text-sm);border-radius:var(--radius-md);cursor:pointer;transition:background var(--dur-fast), border-color var(--dur-fast);white-space:nowrap;-webkit-user-select:none;user-select:none;color:#323130;background:#fff;border:1px solid #8c8c8c;display:inline-flex}.btn:focus-visible{outline:1px solid var(--office-focus-border);outline-offset:1px}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-sm{padding:var(--space-1) var(--space-3);height:24px}.btn-md{padding:var(--space-2) var(--space-4);height:32px}.btn-lg{padding:var(--space-3) var(--space-6);height:40px}.btn-primary{background:var(--office-accent-word);color:#fff;border-color:var(--office-accent-word)}.btn-primary:hover:not(:disabled){background:#1e4580;border-color:#1e4580}.btn-primary:active:not(:disabled){background:#163766;border-color:#163766}.btn-secondary{color:#323130;background:#fff;border-color:#8c8c8c}.btn-secondary:hover:not(:disabled){background:#f3f2f1;border-color:#605e5c}.btn-ghost{color:var(--text-secondary);background:0 0;border-color:#0000}.btn-ghost:hover:not(:disabled){color:#323130;background:#f3f2f1}.btn-danger{background:var(--color-danger);color:#fff;border-color:var(--color-danger)}.btn-danger:hover:not(:disabled){background:#a12b2f;border-color:#a12b2f}.input{width:100%;padding:var(--space-1) var(--space-2);font-family:var(--font-body);font-size:var(--text-base);color:var(--text);border-radius:var(--radius-md);transition:border-color var(--dur-fast);background:#fff;border:1px solid #8c8c8c;outline:none}.input:focus{border-color:var(--office-focus-border)}.input::placeholder{color:var(--text-muted)}.input-error,.input-error:focus{border-color:var(--color-danger)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-6)}.card-interactive{cursor:pointer;transition:background var(--dur-fast), border-color var(--dur-fast)}.card-interactive:hover{background:#faf9f8;border-color:#c8c6c4}.badge{padding:2px var(--space-2);font-size:var(--text-xs);border-radius:var(--radius-full);align-items:center;font-weight:500;line-height:1.5;display:inline-flex}.badge-cyan{color:#0078d4;background:#e1f0fa}.badge-violet{color:#6b3fa0;background:#ede6f6}.badge-success{color:#107c41;background:#ddf2e3}.badge-warning{color:#ca5010;background:#fce6c8}.badge-danger{color:#d13438;background:#fde7e9}.pill{align-items:center;gap:var(--space-1);padding:var(--space-1) var(--space-3);border-radius:var(--radius-full);font-size:var(--text-xs);color:#0078d4;background:#e1f0fa;border:1px solid #c7dff4;font-weight:500;display:inline-flex}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:#f3f2f1}::-webkit-scrollbar-thumb{background:#c8c6c4;border-radius:999px}::-webkit-scrollbar-thumb:hover{background:#a19f9d}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}.font-mono{font-family:var(--font-mono)}.font-heading{font-family:var(--font-heading)}.font-body{font-family:var(--font-body)}.text-xs{font-size:var(--text-xs)}.text-sm{font-size:var(--text-sm)}.text-base{font-size:var(--text-base)}.text-lg{font-size:var(--text-lg)}.text-xl{font-size:var(--text-xl)}.text-2xl{font-size:var(--text-2xl)}.text-3xl{font-size:var(--text-3xl)}.text-4xl{font-size:var(--text-4xl)}.text-muted{color:var(--text-muted)}.text-secondary{color:var(--text-secondary)}.font-medium{font-weight:500}.font-semibold{font-weight:600}.font-bold{font-weight:700}.text-center{text-align:center}.office-title-bar{height:var(--office-title-bar-height);background:var(--office-ribbon-bg);border-bottom:1px solid var(--office-ribbon-border);padding:0 var(--space-2);color:var(--text-secondary);-webkit-user-select:none;user-select:none;flex-shrink:0;align-items:center;font-size:12px;display:flex}.office-ribbon{background:var(--office-ribbon-bg);border-bottom:1px solid var(--office-ribbon-border);-webkit-user-select:none;user-select:none;flex-shrink:0;font-family:Segoe UI,-apple-system,BlinkMacSystemFont,sans-serif}.office-ribbon-tab{color:#323130;cursor:pointer;background:0 0;border:none;border-radius:4px 4px 0 0;justify-content:center;align-items:center;height:32px;padding:4px 12px;font-size:12.5px;font-weight:400;transition:background .1s;display:inline-flex;position:relative}.office-ribbon-tab:after{content:"";z-index:2;background:0 0;height:2px;transition:background .1s;position:absolute;bottom:0;left:8px;right:8px}.office-ribbon-tab:hover{background:var(--office-ribbon-tab-hover);color:#242424}.office-ribbon-tab.active{background:var(--office-ribbon-tab-active);color:#323130;font-weight:600}.office-ribbon-tab.active:after{background:var(--office-accent-word)}.office-ribbon-group{border:none;border-right:1px solid var(--office-ribbon-border);box-sizing:border-box;background:0 0;flex-direction:column;flex-shrink:0;justify-content:space-between;align-items:center;min-width:50px;height:86px;padding:4px 12px;display:flex;position:relative}.office-ribbon-group:last-child{border-right:none}.office-ribbon-group-label{color:#605e5c;text-align:center;-webkit-user-select:none;user-select:none;width:100%;margin-top:auto;padding-top:2px;font-family:Segoe UI,-apple-system,BlinkMacSystemFont,sans-serif;font-size:9px}.office-ribbon-separator{background:var(--office-ribbon-border);width:1px;height:20px;margin:0 var(--space-1);flex-shrink:0}.office-ribbon-button{border-radius:var(--radius-md);cursor:pointer;color:#323130;padding:var(--space-1);background:0 0;border:1px solid #0000;flex-direction:column;justify-content:center;align-items:center;font-family:Segoe UI,-apple-system,BlinkMacSystemFont,sans-serif;font-size:11px;transition:background .1s,border-color .1s;display:inline-flex}.office-ribbon-button:hover{background:#edebe9;border-color:#0000}.office-ribbon-button:active{background:#e1dfdd}.office-status-bar{height:var(--office-status-bar-height);padding:0 var(--space-3);background:var(--office-ribbon-bg);border-top:1px solid 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var(--office-ribbon-border);flex-shrink:0;align-items:center;gap:2px;display:flex;overflow-x:auto}.forge-statusbar{height:var(--statusbar-h);padding:0 var(--space-3);background:var(--office-ribbon-bg);border-top:1px solid var(--border);font-size:var(--text-xs);color:var(--text-secondary);align-items:center;gap:var(--space-3);flex-shrink:0;display:flex}.forge-main{background:var(--bg);flex-direction:column;flex:1;display:flex;overflow:hidden}.docs-page{width:210mm;min-height:297mm;margin:var(--space-8) auto;color:#323130;box-shadow:var(--shadow-md);background:#fff;border-radius:2px;padding:60px 72px;position:relative}.sheets-grid{flex:1;grid-template-columns:60px repeat(26,100px);display:grid;overflow:auto}.sheets-cell{font-size:var(--text-sm);min-height:28px;color:var(--text);background:#fff;border-bottom:1px solid #e1dfdd;border-right:1px solid #e1dfdd;outline:none;padding:2px 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0;font-weight:600;color:#c43e1c!important}.ribbon-tab.active-slides:after{background:#c43e1c}.ribbon-body{background:var(--office-ribbon-bg);box-sizing:border-box;align-items:stretch;gap:0;height:96px;padding:4px 8px;display:flex;overflow-x:auto}.ribbon-body::-webkit-scrollbar{height:4px}.ribbon-body::-webkit-scrollbar-thumb{background:#c8c6c4;border-radius:2px}.ribbon-body::-webkit-scrollbar-thumb:hover{background:#a19f9d}.ribbon-body::-webkit-scrollbar-track{background:var(--office-ribbon-bg)}.ribbon-group{border:none;border-right:1px solid var(--office-ribbon-border);box-sizing:border-box;background:0 0;flex-direction:column;flex-shrink:0;justify-content:space-between;align-items:center;min-width:50px;height:86px;padding:4px 12px;display:flex;position:relative}.ribbon-group:last-child{border-right:none}.ribbon-group-label{color:#605e5c;text-align:center;-webkit-user-select:none;user-select:none;width:100%;margin-top:auto;padding-top:2px;font-family:Segoe 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input{cursor:pointer;accent-color:#185abd;width:13px;height:13px;margin:0}.collab-bar{align-items:center;gap:-8px;display:flex}.collab-avatar{color:#fff;cursor:pointer;border:2px solid #fff;border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;margin-left:-8px;font-size:11px;font-weight:700;transition:transform .15s;display:inline-flex;position:relative}.collab-avatar:first-child{margin-left:0}.collab-avatar:hover{z-index:10;transform:translateY(-2px)scale(1.1)}.context-item{color:#323130;cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:8px;padding:6px 12px;font-family:Segoe 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button:active{background-color:#e1dfdd}.pivot-dialog-overlay{z-index:99999!important;background-color:#0006!important;justify-content:center!important;align-items:center!important;width:100vw!important;height:100vh!important;display:flex!important;position:fixed!important;top:0!important;left:0!important}.pivot-dialog{max-width:500px;box-sizing:border-box!important;color:#323130!important;background:#fff!important;border-radius:6px!important;width:100%!important;padding:16px!important;font-family:Segoe UI,-apple-system,BlinkMacSystemFont,sans-serif!important;animation:.15s ease-out dialogFadeIn!important;box-shadow:0 4px 12px #00000026!important}@keyframes dialogFadeIn{0%{opacity:0;transform:scale(.97)}to{opacity:1;transform:scale(1)}}.pivot-dialog-header{border-bottom:1px solid #e1dfdd!important;justify-content:space-between!important;align-items:center!important;margin-bottom:12px!important;padding-bottom:8px!important;display:flex!important}.pivot-dialog-header h3{color:#323130!important;margin:0!important;font-size:15px!important;font-weight:600!important}.pivot-dialog-body{color:#323130!important;margin-bottom:16px!important;font-size:12.5px!important}.pivot-dialog-footer{border-top:1px solid #e1dfdd!important;justify-content:flex-end!important;gap:8px!important;margin-top:16px!important;padding-top:12px!important;display:flex!important}.layout-list{grid-template-columns:repeat(3,1fr)!important;gap:8px!important;margin-top:8px!important;display:grid!important}.layout-item{text-align:center!important;cursor:pointer!important;border:1px solid #c8c6c4!important;border-radius:4px!important;padding:8px!important;transition:background .1s,border-color .1s!important}.layout-item:hover{background-color:#f3f2f1!important}.layout-item.active{background-color:#fde7e9!important;border-color:#c43e1c!important}.sheets-grid-container{background:#fff;outline:none;flex:1;position:relative;overflow:auto}.sheets-grid-container::-webkit-scrollbar{width:14px;height:14px}.sheets-grid-container::-webkit-scrollbar-track{background:#f3f2f1}.sheets-grid-container::-webkit-scrollbar-thumb{background:#c8c6c4;border:3px solid #f3f2f1;border-radius:7px}.sheets-grid-container::-webkit-scrollbar-thumb:hover{background:#a19f9d}.sheets-grid-container::-webkit-scrollbar-corner{background:#f3f2f1}.sheets-grid-table{border-collapse:collapse;table-layout:fixed}