:root{color:#20302b;font-synthesis:none;text-rendering:optimizelegibility;--ink:#20302b;--muted:#74807b;--paper:#fffdf8;--paper-soft:#fbf7ee;--line:#ddd8cb;--green:#2f7d58;--green-soft:#e8f2ec;--shadow:0 18px 50px #232d2814;--radius:18px;background:#f5f2ea;font-family:Cairo,Inter,system-ui,sans-serif}*{box-sizing:border-box}html,body,#app{min-height:100%;margin:0}body{background:radial-gradient(circle at 15% 10%,#fffc,#0000 26rem),#f5f2ea;min-width:320px}button,input,textarea,select{font:inherit}button{color:inherit}button:focus-visible,[role=button]:focus-visible,.grid-cell:focus-visible{outline-offset:-3px;outline:3px solid #2f7d5852}.shell{width:min(1180px,100% - 32px);margin-inline:auto;padding-block:28px 36px}.eyebrow{color:var(--muted);letter-spacing:.04em;font-size:.78rem;font-weight:600;display:block}h1,h2,h3,p{margin:0}h1{font-size:clamp(1.8rem,4vw,2.5rem);line-height:1.1}.shelf-header,.sheet-topbar{justify-content:space-between;align-items:center;gap:16px;display:flex}.brand-lockup,.topbar-leading,.topbar-actions{align-items:center;gap:12px;display:flex}.primary-button,.icon-button,.text-button{cursor:pointer;background:0 0;border:1px solid #0000;border-radius:14px;min-width:44px;min-height:44px;transition:transform .16s,background-color .16s,border-color .16s}.icon-button:hover,.text-button:hover{border-color:var(--line);background:#ffffffb8}.icon-button:active,.text-button:active{transform:translateY(1px)}.icon-button:disabled{opacity:.35;cursor:not-allowed}.primary-button{background:var(--green);color:#fff;font-size:1.4rem;box-shadow:0 10px 22px #2f7d582e}.text-button{padding-inline:14px;font-weight:600}.shelf-intro{max-width:42rem;padding-block:52px 28px}.shelf-intro h2{margin-bottom:8px;font-size:clamp(1.35rem,3vw,1.9rem)}.shelf-intro p{color:var(--muted);line-height:1.8}.paper-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));gap:18px;display:grid}.paper-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);min-height:230px;box-shadow:var(--shadow);cursor:pointer;grid-template-rows:1fr auto;transition:transform .18s,box-shadow .18s;display:grid;position:relative;overflow:hidden}.paper-card:hover{transform:translateY(-2px);box-shadow:0 24px 56px #232d281c}.paper-cover{background:linear-gradient(140deg,#d9eadf,#bcd9c8);align-items:flex-start;padding:18px;display:flex}.cover-marker{width:44px;height:44px;color:var(--green);background:#ffffffb8;border-radius:12px;place-items:center;font-size:1.35rem;font-weight:700;display:grid}.paper-card-body{padding:18px}.paper-card-body h3{margin-bottom:4px}.paper-card-body p{color:var(--muted);font-size:.9rem}.card-overflow{position:absolute;inset-block-start:10px;inset-inline-end:10px}.sheet-shell{grid-template-rows:auto 1fr auto auto;gap:14px;min-height:calc(100vh - 64px);display:grid;position:relative}.sheet-heading h1{font-size:1.35rem}.sheet-stage{min-height:0;display:grid}.sheet-paper{background:var(--paper);border:1px solid var(--line);min-height:min(680px,100vh - 230px);box-shadow:var(--shadow);border-radius:22px;grid-template-rows:auto 1fr;display:grid;overflow:hidden}.sheet-paper-header{border-bottom:1px solid var(--line);background:var(--paper-soft);justify-content:space-between;gap:12px;padding:14px 18px;display:flex}.sheet-paper-label{font-weight:600}.sheet-paper-hint{color:var(--muted);font-size:.85rem}.grid-host{min-height:0;display:grid}.grid-viewport{overscroll-behavior:contain;background:var(--paper);width:100%;height:100%;min-height:260px;position:relative;overflow:auto}.grid-content{min-width:100%;position:relative}.grid-header{z-index:5;border-bottom:1px solid var(--line);background:#fbf7eefa;height:36px;display:block;position:sticky;inset-block-start:0;inset-inline-start:0;overflow:hidden}.grid-header-cell{border-inline-end:1px solid var(--line);height:36px;color:var(--muted);white-space:nowrap;text-overflow:ellipsis;align-items:center;padding-inline:10px;font-size:.8rem;font-weight:700;display:flex;position:absolute;inset-block-start:0;overflow:hidden}.grid-row{min-width:100%;position:absolute;inset-inline-start:0}.grid-cell{border-inline-end:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--paper);white-space:nowrap;text-overflow:ellipsis;direction:rtl;align-items:center;height:36px;padding-inline:10px;display:flex;position:absolute;inset-block-start:0;overflow:hidden}.grid-cell:hover{background:var(--paper-soft)}.grid-cell[data-selected=true],.grid-cell.selected{background:var(--green-soft);box-shadow:inset 0 0 0 2px var(--green);z-index:3}.grid-chrome{color:var(--muted);background:#f7f3e9;justify-content:center}.grid-row-actions{padding:0}.grid-row-actions .icon-button{border-radius:9px;min-width:36px;min-height:36px}.grid-editor{border:1px solid var(--green);width:100%;min-width:0;color:var(--ink);background:#fff;border-radius:8px;outline:none;padding:5px 7px}.type-number,.type-currency{font-variant-numeric:tabular-nums;justify-content:flex-end}.columns-panel{z-index:10;border:1px solid var(--line);background:var(--paper);border-radius:18px;width:min(420px,100vw - 24px);max-height:min(70vh,640px);padding:16px;position:absolute;inset-block-start:66px;inset-inline-end:0;overflow:auto;box-shadow:0 24px 60px #232d2829}.columns-panel-header{justify-content:space-between;align-items:center;gap:10px;display:flex}.columns-panel-header h2{font-size:1rem}.columns-panel-note{color:var(--muted);margin-block:8px 14px;font-size:.84rem;line-height:1.7}.columns-panel-list{gap:8px;display:grid}.column-setting{border:1px solid var(--line);background:var(--paper-soft);border-radius:13px;justify-content:space-between;align-items:center;gap:10px;padding:10px;display:flex}.column-setting-name{gap:2px;min-width:0;display:grid}.column-setting-name strong{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.column-setting-name span{color:var(--muted);font-size:.78rem}.column-setting-controls{flex-shrink:0;align-items:center;gap:4px;display:flex}.column-setting-controls .icon-button{min-width:38px;min-height:38px}.grid-placeholder{text-align:center;place-items:center;padding:30px;display:grid}.grid-placeholder h2{margin-bottom:8px;font-size:1.4rem}.grid-placeholder p{max-width:560px;color:var(--muted);line-height:1.9}.sheet-dividers{align-items:end;gap:8px;padding-inline:6px;display:flex;overflow-x:auto}.divider{border:1px solid var(--line);cursor:pointer;background:#ebe5d7;border-bottom-color:#0000;border-radius:12px 12px 0 0;min-height:44px;padding:0 18px}.divider.active{background:var(--paper);border-color:var(--line);color:var(--green);font-weight:700}.summary-shell{border-top:1px solid #0000;grid-template-columns:auto 1fr;align-items:center;gap:8px;min-height:44px;padding-inline:8px;display:grid}.summary-shell.summary-open{border-color:var(--line);background:#fffdf8b8;border-radius:14px}.summary-content{min-height:44px;color:var(--muted);justify-content:space-between;align-items:center;gap:12px;padding-inline:10px;display:none}.summary-open .summary-content{display:flex}.summary-open>.icon-button{transform:rotate(180deg)}.focus-toggle{opacity:0;pointer-events:none;position:absolute;inset-block-start:0;inset-inline-start:50%;translate:-50% -8px}.sheet-shell:focus-within .focus-toggle,.focus-mode .focus-toggle{opacity:1;pointer-events:auto}.focus-mode .sheet-topbar,.focus-mode .sheet-dividers,.focus-mode .summary-shell{opacity:.08;transition:opacity .2s}.focus-mode .sheet-topbar:hover,.focus-mode .sheet-dividers:hover,.focus-mode .summary-shell:hover{opacity:1}.sr-only{clip-path:inset(50%);white-space:nowrap;block-size:1px;inline-size:1px;position:fixed;overflow:hidden}@media (width<=720px){.shell{width:min(100% - 20px,1180px);padding-block:16px 24px}.sheet-topbar{align-items:flex-start}.topbar-actions{flex-wrap:wrap;justify-content:flex-end}.sheet-paper-header{flex-direction:column;align-items:flex-start}.columns-panel{inset-inline-end:6px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}