:root{--ink:#17211b;--muted:#69736d;--green:#1f7a4d;--green-dark:#135c39;--green-pale:#e8f2ec;--cream:#f5f4ee;--line:#d9ddd8;--white:#fff;--shadow:0 18px 50px rgba(25,48,35,.10)}
*{box-sizing:border-box}html{height:100%}body{margin:0;min-height:100%;background:var(--cream);color:var(--ink);font-family:"DM Sans","Noto Sans JP",sans-serif}.topbar{height:76px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 5vw;position:sticky;top:0;z-index:20}.brand{display:flex;align-items:center;gap:12px}.brand-mark{width:38px;height:38px;background:var(--green);border-radius:7px;padding:7px;display:grid;grid-template-columns:1fr 1fr;gap:3px}.brand-mark span{background:white;border-radius:1px}.brand strong{font-size:20px;letter-spacing:-.5px}.brand small{display:block;font-size:8px;letter-spacing:2.1px;color:var(--green);font-weight:700}.top-actions{display:flex;align-items:center;gap:9px}.save-state{font-size:12px;color:var(--muted);margin-right:10px}.save-state i{width:7px;height:7px;background:#83b395;border-radius:50%;display:inline-block;margin-right:5px}.save-state.dirty i{background:#e3a33b}.button{border:0;border-radius:7px;padding:10px 16px;font:600 13px inherit;cursor:pointer;transition:.18s}.button:hover{transform:translateY(-1px)}.button.primary{background:var(--green);color:#fff;box-shadow:0 5px 14px rgba(31,122,77,.18)}.button.primary:hover{background:var(--green-dark)}.button.secondary{background:#fff;border:1px solid var(--line);color:var(--ink)}.file-button input{display:none}main{width:min(1180px,90vw);margin:auto}.intro{display:flex;justify-content:space-between;align-items:flex-end;padding:24px 2px 24px}.eyebrow{font-size:10px;letter-spacing:3px;font-weight:700;color:var(--green);margin:0 0 15px}.intro h1{font-size:48px;line-height:1.14;letter-spacing:-2.5px;margin:0;font-weight:600}.intro h1 em{font-style:normal;color:var(--green)}.lead{font-size:14px;color:var(--muted);line-height:1.9;margin:18px 0 0}.security-note{display:flex;gap:11px;align-items:center;color:var(--muted);font-size:11px;line-height:1.6;margin-bottom:4px}.security-note>span{display:grid;place-items:center;width:32px;height:32px;border:1px solid #a8c6b3;border-radius:50%;color:var(--green)}.security-note strong{color:var(--ink);font-size:12px}.workspace{background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);min-height:390px;overflow:hidden}.drop-zone{margin:18px;border:1.5px dashed #abc0b2;border-radius:8px;min-height:352px;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(135deg,#fbfcfa,#f5f8f5);transition:.2s}.drop-zone.dragover{border-color:var(--green);background:var(--green-pale);transform:scale(.995)}.file-icon{width:58px;height:68px;border:2px solid var(--green);border-radius:6px;display:grid;place-items:center;position:relative;margin-bottom:20px;background:#fff}.file-icon:after{content:"";position:absolute;right:-2px;top:-2px;border-top:16px solid var(--cream);border-left:16px solid transparent}.file-icon span{background:var(--green);color:white;font-size:10px;font-weight:700;padding:4px 6px}.drop-zone h2{font-size:19px;margin:0 0 7px}.drop-zone p{color:var(--muted);font-size:13px;margin:0 0 18px}.drop-zone small{margin-top:13px;color:#8a938e;font-size:10px}.editor{min-height:520px}.file-summary{height:70px;padding:0 20px;display:flex;align-items:center;border-bottom:1px solid var(--line);gap:11px}.file-badge{background:var(--green-pale);color:var(--green);font-size:9px;font-weight:700;padding:12px 8px;border-radius:5px}.file-summary strong{font-size:14px;display:block}.file-summary span{font-size:10px;color:var(--muted);display:block;margin-top:3px}.summary-actions{margin-left:auto;display:flex;gap:6px}.icon-button{width:32px;height:32px;border:1px solid var(--line);background:#fff;border-radius:5px;font-size:18px;color:#566159;cursor:pointer}.icon-button:disabled{opacity:.35}.toolbar{height:54px;padding:0 14px;display:flex;align-items:center;border-bottom:1px solid var(--line);gap:14px}.tool-group{display:flex;border-right:1px solid var(--line);padding-right:14px;gap:2px}.toolbar button{border:0;background:transparent;font:500 11px inherit;color:#566159;padding:8px;border-radius:5px;cursor:pointer}.toolbar button:hover{background:var(--green-pale);color:var(--green)}.toolbar button b{color:var(--green);font-size:15px}.search{margin-left:auto;width:190px;border:1px solid var(--line);border-radius:6px;height:32px;display:flex;align-items:center;padding:0 9px;gap:6px}.search input{border:0;outline:0;width:100%;font:11px inherit}.formula-bar{height:39px;border-bottom:1px solid var(--line);display:flex;align-items:center;background:#fafbf9}.cell-address{width:70px;text-align:center;font:600 11px inherit;border-right:1px solid var(--line)}.fx{padding:0 14px;color:var(--green);font:italic 600 13px Georgia}.formula-bar input{border:0;outline:0;background:transparent;flex:1;height:100%;font:12px inherit;padding:0 10px}.table-scroll{height:360px;overflow:auto;background:#fff}table{border-collapse:separate;border-spacing:0;font-size:12px;min-width:100%;table-layout:fixed}th,td{border-right:1px solid var(--line);border-bottom:1px solid var(--line);height:32px;min-width:130px;padding:0 9px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}thead th{position:sticky;top:0;z-index:3;background:#edf2ee;color:#405148;font-weight:600;text-align:left}.row-num{position:sticky;left:0;z-index:2;min-width:46px;width:46px;background:#f4f6f4!important;text-align:center;color:#78817c;font-weight:500;padding:0}.corner{z-index:4!important}td{outline:none;background:#fff}td:hover{background:#f7faf8}td.selected{box-shadow:inset 0 0 0 2px var(--green);background:#f5fbf7}td.match{background:#fff1b7}.statusbar{height:35px;display:flex;align-items:center;justify-content:space-between;padding:0 14px;background:#fafbf9;color:var(--muted);font-size:10px;border-top:1px solid var(--line)}footer{width:min(1180px,90vw);margin:22px auto 30px;display:flex;justify-content:space-between;color:#8b938f;font-size:9px;letter-spacing:.6px}.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:var(--ink);color:white;padding:11px 18px;border-radius:7px;font-size:12px;opacity:0;pointer-events:none;transition:.25s;z-index:50}.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:760px){.topbar{padding:0 16px}.save-state,.top-actions .secondary:not(.file-button){display:none}.intro{padding:38px 0 28px;display:block}.intro h1{font-size:38px}.security-note{margin-top:24px}.workspace{border-radius:8px}main{width:94vw}.toolbar{overflow-x:auto}.search{min-width:150px}.tool-group{min-width:max-content}.table-scroll{height:430px}footer span:nth-child(2){display:none}.top-actions{gap:6px}.button{padding:9px 12px}}

/* Column resizing */
.column-head{position:sticky}
.column-head,tbody td{min-width:0}
.row-column{width:46px!important;min-width:46px!important;max-width:46px!important}
.row-num{width:46px!important;min-width:46px!important;max-width:46px!important}
#dataTable{min-width:0!important}
.resize-handle{position:absolute;top:0;right:-4px;width:9px;height:100%;cursor:col-resize;z-index:5;touch-action:none}
.resize-handle::after{content:"";position:absolute;top:7px;bottom:7px;left:4px;width:1px;background:transparent}
.resize-handle:hover::after,body.resizing .resize-handle::after{background:var(--green)}
body.resizing{cursor:col-resize;user-select:none}
.save-mode-label{font-size:10px;color:var(--muted);margin-left:4px}.save-mode{height:36px;max-width:155px;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--ink);padding:0 27px 0 9px;font:500 11px inherit;cursor:pointer;outline:none}.save-mode:focus{border-color:var(--green);box-shadow:0 0 0 2px var(--green-pale)}
.description{padding:24px 4px 24px;max-width:1000px;margin:auto}.description>h2{font-size:30px;letter-spacing:-1px;margin:0 0 15px}.description>p:not(.eyebrow){max-width:760px;color:var(--muted);font-size:13px;line-height:2}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px}.feature-grid article{background:#fff;border:1px solid var(--line);border-radius:9px;padding:24px}.feature-grid article>span{color:var(--green);font-size:10px;font-weight:700;letter-spacing:1px}.feature-grid h3{font-size:15px;margin:10px 0 7px}.feature-grid p{font-size:11px;line-height:1.8;color:var(--muted);margin:0}@media(max-width:760px){.feature-grid{grid-template-columns:1fr}.description{padding:50px 2px}.description>h2{font-size:25px}}
.faq-list{margin-top:52px}.faq-list h2{font-size:23px}.faq-list details{border-top:1px solid var(--line);padding:17px 4px}.faq-list details:last-child{border-bottom:1px solid var(--line)}.faq-list summary{font-size:13px;font-weight:600;cursor:pointer}.faq-list details p{font-size:12px;color:var(--muted)}
@media(max-width:900px){.save-mode-label{display:none}.save-mode{max-width:116px;font-size:10px}}
@media(max-width:620px){.brand>div:last-child{display:none}.save-mode{max-width:108px}.topbar{padding:0 10px}}
.formula-cell{color:var(--green);font-variant-numeric:tabular-nums}.formula-cell::before{content:"=";font-size:8px;font-weight:700;vertical-align:top;margin-right:3px;opacity:.55}.formula-cell[contenteditable="true"]::before{display:none}
.adsbygoogle {margin: 16px 0}