:root{font-family:Inter,"Segoe UI",system-ui,sans-serif;color:#25372c;background:#f7f9f7;font-synthesis:none;--surface:#fff;--muted:#687a6d;--line:#dce5de;--soft:#f5f8f5;--accent:#107c41;--hover:#e6f0e9}*{box-sizing:border-box}body{margin:0;height:100dvh;min-height:480px;display:flex;flex-direction:column;overflow:hidden}button,input,select,textarea{font:inherit}button{cursor:pointer;color:inherit;border:0;background:none;border-radius:4px}button:disabled{cursor:default;opacity:.38}button:hover{background:var(--hover)}button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid #23a15d;outline-offset:-2px}input,select,textarea{color:inherit;background:var(--surface);border:1px solid var(--line);border-radius:3px}input,select{height:28px;padding:3px 7px}button svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.titlebar{height:52px;flex:none;display:flex;align-items:center;gap:13px;background:#107c41;color:#fff;padding:0 18px}.titlebar strong{font-size:15px;letter-spacing:.2px}.brand-mark{display:grid;place-items:center;font-weight:750;font-size:21px;width:31px;height:31px;border-radius:6px;background:#fff;color:#107c41;box-shadow:3px 0 #ffffff4a}.title-divider{height:20px;width:1px;background:#ffffff40}.titlebar #book-title{width:290px;background:transparent;color:#fff;border:0;font-size:12px;font-weight:500}.saved{font-size:10px;color:#d9eddf;white-space:nowrap}.title-actions{margin-left:auto;display:flex;align-items:center;gap:12px}.title-actions button{color:white;padding:7px 9px}.title-actions button:hover{background:#ffffff20}#search-button{background:#ffffff17;border:1px solid #ffffff26;font-size:12px;width:190px;text-align:left}.avatar{display:grid;place-items:center;width:29px;height:29px;background:#cce9d6;border:2px solid #ffffff70;border-radius:50%;color:#0b6434;font-size:10px;font-weight:700}.tabs{height:36px;flex:none;display:flex;gap:6px;align-items:stretch;padding:0 12px;background:var(--soft);border-bottom:1px solid var(--line)}.tabs button{font-size:12px;padding:0 12px;position:relative;border-radius:0}.tabs button[aria-selected=true]{font-weight:650;color:var(--accent)}.tabs button[aria-selected=true]:after{content:"";position:absolute;height:3px;bottom:0;left:12px;right:12px;background:var(--accent);border-radius:3px 3px 0 0}.tabs .file-tab{color:var(--accent);font-weight:650}.version{font-size:9px;letter-spacing:1px;margin:auto 6px auto auto;color:var(--muted)}.ribbon{height:111px;display:flex;align-items:stretch;flex:none;gap:0;padding:8px 10px 3px;background:var(--surface);overflow-x:auto;overflow-y:hidden;border-bottom:1px solid var(--line)}.ribbon-group{display:flex;flex-direction:column;flex-shrink:0;border-right:1px solid var(--line);padding:0 12px;min-width:100px}.ribbon-group:last-child{border:0}.group-items{display:flex;align-items:center;gap:4px;flex:1}.group-items.wrap{flex-wrap:wrap;align-content:center;max-width:340px;gap:4px}.group-label{font-size:9px;line-height:19px;text-align:center;color:var(--muted)}.ribbon-button{font-size:10px;min-width:45px;height:58px;padding:5px 7px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:5px;white-space:pre-line;line-height:1.3}.ribbon-button svg{width:23px;height:23px}.ribbon-button.small{height:28px;min-width:28px;padding:4px 7px;flex-direction:row;font-size:11px;white-space:nowrap}.ribbon-button.small svg{width:17px;height:17px}.ribbon-button.toggled{background:var(--hover);color:var(--accent)}.ribbon select{font-size:11px}.format-row{display:flex;gap:4px;align-items:center;width:100%}.ribbon input[type=color]{width:29px;height:26px;padding:3px;cursor:pointer}.ribbon .font-select{width:134px}.ribbon .size-select{width:55px}.ribbon .number-select{width:128px}.formula-bar{height:36px;flex:none;display:flex;gap:3px;align-items:center;padding:4px 10px;background:var(--soft);border-bottom:1px solid var(--line)}#address{width:112px;flex:none;text-align:center;font-size:12px}#formula{flex:1;min-width:80px;font:12px Consolas,monospace;border:0;height:26px;border-radius:2px;background:var(--surface)}.formula-bar button{height:26px;width:29px;color:var(--muted);font-size:17px}.formula-bar .fx{font-style:italic;font-size:18px}.bar-divider{height:18px;width:1px;background:var(--line);margin:0 8px}#workspace{flex:1;min-height:0;display:flex;background:var(--surface)}.document-pane{flex:1;min-height:0;min-width:0;position:relative;overflow:hidden}.inspector{width:270px;flex-shrink:0;border-left:1px solid var(--line);background:var(--surface);overflow-y:auto;font-size:12px}.inspector>header{height:46px;display:flex;align-items:center;justify-content:space-between;padding:0 16px}.inspector>header strong{font-size:12px}.inspector>header button{font-size:20px;color:var(--muted)}.inspector-tabs{display:flex;border-bottom:1px solid var(--line);padding:0 12px;gap:9px}.inspector-tabs button{padding:7px 6px 10px;font-size:11px;border-radius:0}.inspector-tabs button.selected{color:var(--accent);box-shadow:inset 0 -2px var(--accent);font-weight:600}#panel-content{padding:17px}.eyebrow{font-size:9px;font-weight:700;letter-spacing:1.3px;color:var(--muted);margin:0 0 9px;text-transform:uppercase}.cell-heading{font-size:27px;font-weight:650;line-height:1.2;margin-bottom:4px;color:var(--accent)}.hint{font-size:11px;line-height:1.7;color:var(--muted)}.section{border-top:1px solid var(--line);padding-top:16px;margin-top:17px}.kv{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:10px 0;font-size:11px}.kv b{font-weight:600;text-align:right;overflow-wrap:anywhere;max-width:160px}.code-box{padding:10px;border-radius:5px;background:var(--soft);border:1px solid var(--line);font:11px/1.6 Consolas,monospace;white-space:pre-wrap;overflow-wrap:anywhere;margin:9px 0}.panel-button{border:1px solid var(--line);width:100%;padding:8px;text-align:left;font-size:11px;margin:4px 0}.library{padding:10px 0;border-bottom:1px solid var(--line)}.library b{font-size:11px}.library span{display:block;color:var(--muted);font-size:10px;line-height:1.5;margin-top:4px}.pill{display:inline-block;background:#e5f1e9;color:#197543;border-radius:20px;padding:4px 9px;font-size:10px;font-weight:500}.sheet-strip{height:36px;background:var(--soft);display:flex;align-items:stretch;gap:2px;flex:none;border-top:1px solid var(--line);font-size:11px}.sheet-navigation{display:flex;padding:0 7px;align-items:center}.sheet-navigation button{width:23px;font-size:20px;color:var(--muted)}#sheet-tabs{display:flex;overflow-x:auto;scrollbar-width:none}#sheet-tabs button{padding:0 16px;border-radius:0;white-space:nowrap;flex-shrink:0;border-right:1px solid var(--line)}#sheet-tabs button[aria-selected=true]{background:var(--surface);color:var(--accent);font-weight:650;box-shadow:inset 0 -3px var(--accent)}.add-sheet{font-size:21px;width:37px}.local-note{margin:auto 14px auto auto;font-size:10px;color:var(--muted);white-space:nowrap}.statusbar{height:27px;display:flex;align-items:center;gap:9px;background:var(--surface);font-size:10px;padding:0 13px;border-top:1px solid var(--line);flex:none}.status-dot{height:6px;width:6px;background:var(--accent);border-radius:50%}#status{white-space:nowrap;max-width:310px;overflow:hidden;text-overflow:ellipsis}#stats{margin-left:auto;color:var(--muted);font-size:10px;white-space:nowrap}.view-buttons{display:flex;border-left:1px solid var(--line);margin-left:10px;padding-left:7px;gap:1px}.view-buttons button{font-size:16px;height:25px;width:29px;border-radius:0}.view-buttons .selected{background:var(--hover);color:var(--accent)}#zoom{width:104px;padding:0;height:17px;accent-color:var(--accent);border:0;background:none}#zoom-value{min-width:32px;text-align:right}.statusbar>button{font-size:16px;padding:1px}dialog{border:1px solid var(--line);border-radius:12px;padding:0;max-width:620px;width:calc(100% - 36px);box-shadow:0 22px 90px #17291e44;background:var(--surface);color:inherit}dialog::backdrop{background:#20352966;backdrop-filter:blur(2px)}dialog header{display:flex;align-items:center;padding:18px 24px;border-bottom:1px solid var(--line)}dialog h2{font-size:17px;margin:0;font-weight:600}dialog header button{margin-left:auto;font-size:24px;color:var(--muted)}#dialog-fields{padding:21px 24px;max-height:60vh;overflow:auto}#dialog-fields label{display:block;font-size:12px;font-weight:600;margin:0 0 16px}#dialog-fields label span{display:block;margin-bottom:6px}#dialog-fields input,#dialog-fields select,#dialog-fields textarea{width:100%;padding:9px;height:auto;font-size:12px}#dialog-fields textarea{min-height:100px;resize:vertical;font-family:Consolas,monospace}#dialog-fields .hint{margin:0 0 14px}#dialog-error{padding:0 24px;color:#c63737;font-size:12px;margin:0 0 12px}dialog footer{display:flex;justify-content:flex-end;gap:8px;border-top:1px solid var(--line);padding:14px 24px}dialog footer button{padding:8px 17px;font-size:12px;border:1px solid var(--line)}button.primary{background:var(--accent);color:#fff;border-color:var(--accent)}.function-list{max-height:300px;overflow:auto}.function-list button{display:block;width:100%;text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);font:12px Consolas,monospace}#toast{position:fixed;z-index:40;left:50%;bottom:68px;transform:translateX(-50%);padding:11px 20px;background:#243e2d;color:#fff;font-size:12px;border-radius:8px;box-shadow:0 8px 30px #0002;max-width:80%;pointer-events:none}#toast:empty{display:none}[hidden]{display:none!important}#companion-ribbon:empty{display:none}body.dark{--surface:#1d2821;--soft:#243128;--line:#3a493e;--muted:#a2b5a8;--hover:#2a4533;--accent:#54c386;background:#1d2821;color:#e4eee7}body.dark .titlebar{background:#105e36}body.dark .pill{background:#294c35;color:#91d9a8}@media(max-width:1100px){.inspector{width:230px}.saved,.local-note{display:none}.ribbon-group{padding:0 8px}.titlebar #book-title{width:235px}}@media(max-width:900px){.inspector{display:none}.version{display:none}.titlebar{padding:0 10px;gap:8px}#search-button{width:30px}#search-button span{display:none}.titlebar #book-title{width:240px}.ribbon{height:105px}.tabs{overflow:auto;gap:0}.tabs button{padding:0 10px}.statusbar #stats{max-width:220px;overflow:hidden}.tabs .file-tab{position:sticky;left:0;background:var(--soft);z-index:1}}@media(max-width:560px){.titlebar #book-title{width:150px}.titlebar strong,.title-divider,.avatar{display:none}.title-actions{gap:2px}.version{display:none}.formula-bar{padding-left:4px}#address{width:78px}.sheet-navigation{display:none}.statusbar #stats{display:none}.statusbar .view-buttons{margin-left:auto}#zoom{width:65px}.tabs button{font-size:11px;padding:0 8px}.ribbon{height:100px}}

/* Compact classic ribbon groups keep the common editing commands visible. */
.ribbon-group[data-group="Clipboard"] .group-items{display:grid;grid-template-columns:54px 72px;grid-template-rows:repeat(3,24px);gap:0}.ribbon-group[data-group="Clipboard"] .group-items>button:first-child{grid-row:1/4;height:70px}.ribbon-group[data-group="Clipboard"] .small{height:24px;justify-content:flex-start}
.ribbon-group[data-group="Font"] .group-items{max-width:210px}.ribbon-group[data-group="Alignment"] .group-items{max-width:192px}.ribbon-group[data-group="Cells"] .group-items{max-width:100px}.ribbon-group[data-group="Number"] .group-items{max-width:134px}.ribbon-group[data-group="Number"] .ribbon-button{height:22px}