:root{font-family:"Segoe UI",Arial,sans-serif;color:#242424;background:#f5f5f5;--green:#107c41;--line:#d2d2d2}
*{box-sizing:border-box}body{margin:0;height:100vh;overflow:hidden}button,input{font:inherit}
[hidden]{display:none!important}
.login-shell{height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#e8f5ee,#f7f7f7)}
.login-card{width:min(390px,92vw);padding:34px;background:white;border-radius:12px;box-shadow:0 16px 50px #0002;display:grid;gap:14px}
.brand-mark{width:52px;height:52px;display:grid;place-items:center;background:var(--green);color:white;font-size:28px;font-weight:700;border-radius:5px}.brand-mark img{width:100%;height:100%;object-fit:contain;border-radius:inherit}.login-card .product-name{margin:0;color:#66716b;font-size:14px}
.brand-mark.small{width:28px;height:28px;font-size:16px}.login-card h1{margin:0}.login-card p{margin:0;color:#666}
.login-card label{display:grid;gap:5px;font-size:13px}.login-card input{padding:10px;border:1px solid #aaa;border-radius:4px}
.login-card button{padding:11px;border:0;border-radius:4px;background:var(--green);color:white}.error{color:#b10e1e}
#app{height:100vh;display:grid;grid-template-rows:42px 34px 78px 34px 1fr 32px;background:white}
.titlebar{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 10px;background:var(--green);color:white}
.app-title,.top-actions{display:flex;align-items:center;gap:9px}.top-actions{justify-content:flex-end}.titlebar button{border:0;background:transparent;color:white;padding:6px}
#book-title select{background:#ffffff20;color:white;border:1px solid #ffffff55;border-radius:3px;padding:4px 22px 4px 8px}#book-title option{color:#222}
#user-chip{background:#ffffff25;padding:5px 9px;border-radius:14px;font-size:12px}.tabs{display:flex;background:#f5f5f5;padding-left:10px;border-bottom:1px solid var(--line)}
.tabs button{border:0;background:transparent;padding:6px 13px}.tabs button.active{color:var(--green);border-bottom:2px solid var(--green)}
.ribbon{display:flex;align-items:stretch;border-bottom:1px solid var(--line);padding:6px 10px;gap:8px}.ribbon-group{border-right:1px solid var(--line);padding-right:8px}
.ribbon button{height:62px;min-width:70px;border:0;background:white;font-size:22px}.ribbon button:hover{background:#eee}.ribbon button span{display:block;font-size:11px}
.ribbon select{height:30px;max-width:130px;border:1px solid #bbb;border-radius:3px;background:#fff;font-size:12px}.ribbon .format-tools select{align-self:center}
.ribbon .clipboard-tools{display:flex}.ribbon .clipboard-tools button{min-width:66px}
.ribbon .format-tools{display:flex}.ribbon .format-tools button{min-width:34px;width:34px}.color-tools{display:flex;gap:5px}.color-tools label{display:grid;place-items:center;min-width:48px;font-size:20px;cursor:pointer}.color-tools label span{font-size:10px}.color-tools input{width:28px;height:20px;padding:0;border:0}
#deadline-banner{margin-left:auto;align-self:center;color:#a4262c;font-weight:600}.formula-bar{display:grid;grid-template-columns:70px 36px 1fr;border-bottom:1px solid var(--line)}
.formula-bar>div{display:grid;place-items:center;border-right:1px solid var(--line)}.fx{font-style:italic;color:#666}.formula-bar input{border:0;padding:5px 8px;outline:0}
#grid-wrap{overflow:auto;background:#fff}table{border-collapse:separate;border-spacing:0;min-width:100%;table-layout:fixed}
th,td{height:28px;min-width:125px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:4px 6px;white-space:nowrap;overflow:hidden}
thead th{position:sticky;top:0;background:#f3f3f3;text-align:center;font-weight:400;z-index:2}.row-head{position:sticky;left:0;min-width:48px;width:48px;background:#f3f3f3;text-align:center;z-index:1}
thead th[data-filter-column]{cursor:pointer}.filtered-column{color:var(--green);font-weight:600}.filter-mark{font-size:9px;margin-left:5px}.filter-list{display:grid;gap:5px;max-height:210px;overflow:auto}.filter-list>div{display:flex;justify-content:space-between;align-items:center;gap:12px;border-bottom:1px solid var(--line);padding:7px}
td.selected{outline:2px solid var(--green);outline-offset:-2px}td.locked{background:#f7f7f7;color:#777}td.formula-error{color:#b10e1e;background:#fff1f1}td.link-error{background:#ffe2e2!important;box-shadow:inset 0 0 0 2px #c50f1f;color:#8b0000!important}td.changed{animation:flash 1s}@keyframes flash{from{background:#c9efd9}}
.cell-context-menu{position:fixed;z-index:1000;min-width:190px;padding:4px;background:#fff;border:1px solid #c8c8c8;box-shadow:0 4px 16px #0003;border-radius:4px}.cell-context-menu button{display:block;width:100%;padding:7px 12px;text-align:left;border:0;background:#fff;font-size:13px}.cell-context-menu button:hover{background:#eaf4ef}
.book-management-list{display:grid;gap:5px;max-height:55vh;overflow:auto}.book-management-list article{display:flex;align-items:center;justify-content:space-between;gap:10px;border-bottom:1px solid var(--line);padding:8px}.book-management-list small{display:block;color:#666}.book-management-list button{white-space:nowrap}
.symbol-palette{display:grid;grid-template-columns:repeat(7,minmax(38px,1fr));gap:6px}.symbol-palette button{font-size:20px;min-height:38px}
td.validated-cell{position:relative}td.validated-cell:after{content:"";position:absolute;right:1px;top:1px;border-top:6px solid var(--green);border-left:6px solid transparent}.validation-bounds{display:grid;grid-template-columns:1fr 1fr;gap:8px}.validation-list{display:grid;gap:5px;max-height:230px;overflow:auto}.validation-list>div{display:flex;justify-content:space-between;align-items:center;gap:12px;border-bottom:1px solid var(--line);padding:7px}
.conditional-colors{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}.conditional-colors label{display:grid;gap:5px}.conditional-format-list{display:grid;gap:5px;max-height:230px;overflow:auto}.conditional-format-list>div{display:grid;grid-template-columns:42px 1fr auto;align-items:center;gap:10px;border-bottom:1px solid var(--line);padding:7px}.format-preview{display:grid;place-items:center;width:38px;height:30px;border:1px solid var(--line);border-radius:3px}
footer{display:flex;justify-content:space-between;align-items:center;background:#f4f4f4;border-top:1px solid var(--line);padding:0 12px;font-size:12px}
#sheet-tabs button{height:31px;border:0;border-bottom:3px solid var(--green);background:white;padding:0 18px}dialog{border:0;border-radius:8px;box-shadow:0 20px 70px #0005;max-width:min(700px,90vw)}
#page-controls{display:flex;align-items:center;gap:4px}#page-controls button{height:25px;min-width:30px;border:1px solid #bbb;background:#fff;border-radius:3px}#page-controls button:disabled{opacity:.4}#page-status{min-width:210px;text-align:center}
dialog{min-width:min(420px,90vw);position:relative}.close{position:absolute;right:8px;top:6px;border:0;background:transparent;font-size:24px}#modal-content{padding:12px 24px 20px}
.chart{display:flex;align-items:flex-end;gap:18px;height:220px;border-bottom:1px solid #999;padding:15px}.bar{width:70px;background:var(--green);color:white;text-align:center;min-height:4px}
.analytics-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.summary-card{background:#f3f3f3;border-radius:6px;padding:10px}.summary-card strong{display:block;font-size:22px;color:var(--green)}.progress-list{display:grid;gap:8px;margin:16px 0}.progress-row{display:grid;grid-template-columns:140px 1fr 70px 90px;gap:8px;align-items:center}.progress-track{height:18px;background:#e5e5e5;border-radius:9px;overflow:hidden}.progress-fill{height:100%;background:var(--green)}.progress-fill.overdue{background:#c42b1c}.progress-fill.atRisk{background:#f0a30a}.status-overdue{color:#c42b1c}.status-atRisk{color:#9a6700}.status-completed{color:var(--green)}.analytics-graph{width:100%;height:210px;background:#fafafa;border:1px solid var(--line)}.metric-config{display:grid;grid-template-columns:1.3fr 1fr 1fr 75px 110px auto;gap:6px;align-items:end;margin-bottom:7px}.metric-config label{display:grid;font-size:11px}
.modal-form{display:grid;gap:10px}.modal-form label{display:grid;gap:4px;font-size:13px}.modal-form input,.modal-form select,.modal-form textarea{padding:8px;border:1px solid #aaa;border-radius:4px}.primary{border:0;border-radius:4px;background:var(--green);color:#fff;padding:9px 14px}
.notification{border-bottom:1px solid var(--line);padding:10px 0}.notification.unread{border-left:3px solid var(--green);padding-left:9px}.notification small,.chat-message small{color:#666}
.user-list{display:grid;gap:8px;max-height:55vh;overflow:auto}.user-item{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center;border-bottom:1px solid var(--line);padding:8px}.user-item.inactive{opacity:.55}.user-actions{display:flex;gap:5px;flex-wrap:wrap;justify-content:flex-end}.secondary{border:1px solid #999;background:white;border-radius:4px;padding:6px 9px}.danger{border-color:#a4262c;color:#a4262c}.audit-list{max-height:60vh;overflow:auto}.audit-item{display:grid;grid-template-columns:155px 160px 1fr;gap:8px;border-bottom:1px solid var(--line);padding:6px;font-size:12px}
.history-list{display:grid;gap:8px;max-height:58vh;overflow:auto}.history-item{display:grid;grid-template-columns:minmax(190px,1fr) minmax(150px,1.2fr) auto;gap:10px;align-items:center;border-bottom:1px solid var(--line);padding:9px}.history-item>code{white-space:pre-wrap;overflow-wrap:anywhere}.history-item .error{grid-column:1/-1}.current-version{color:var(--green);font-weight:600}
.structure-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:14px 0}.structure-actions>*{min-height:42px}.structure-list{display:grid;gap:5px;max-height:180px;overflow:auto}.structure-list>div{display:flex;justify-content:space-between;align-items:center;gap:12px;border-bottom:1px solid var(--line);padding:6px}.structure-list>div>span:last-child{display:flex;gap:5px;flex-wrap:wrap;justify-content:flex-end}.structure-list small{color:#666}
.chat-list{height:min(420px,55vh);overflow:auto;background:#f7f7f7;padding:10px;border-radius:5px}.chat-message{background:white;padding:8px 10px;margin-bottom:8px;border-radius:5px}.chat-message.mine{border-left:3px solid var(--green)}.chat-compose{display:grid;grid-template-columns:1fr auto;gap:8px;margin-top:10px}.chat-compose textarea{grid-column:1/-1;resize:vertical}
.search-form{display:grid;grid-template-columns:1fr auto;gap:8px}.search-form input{padding:9px;border:1px solid #aaa;border-radius:4px}.search-results{display:grid;gap:5px;max-height:52vh;overflow:auto}.search-result{display:grid;grid-template-columns:minmax(250px,1fr) minmax(160px,.8fr);gap:12px;text-align:left;border:1px solid var(--line);background:#fff;padding:9px;border-radius:4px}.search-result:hover{border-color:var(--green);background:#f3faf6}.search-result span,.search-result small{display:block}.search-result small{color:#666;margin-top:3px}.search-result code{white-space:pre-wrap;overflow-wrap:anywhere}.search-pager{display:flex;justify-content:space-between;margin-top:10px}
.dependency-summary{display:flex;gap:10px;flex-wrap:wrap;margin:8px 0}.dependency-summary span{background:#f1f8f4;border:1px solid #c9e4d3;border-radius:4px;padding:6px 10px}.dependency-list{max-height:300px;overflow:auto;border:1px solid var(--line)}.dependency-list article{display:grid;grid-template-columns:64px 1fr;gap:4px 10px;padding:7px 9px;border-bottom:1px solid var(--line)}.dependency-list article:last-child{border-bottom:0}.dependency-list small{grid-column:2}
.formula-health{border:1px solid #c8dfd1;background:#f2faf5;border-radius:5px;padding:8px 10px}.formula-health.warning{border-color:#d89b00;background:#fff8df}.formula-health.critical{border-color:#c42b1c;background:#fff0f0;color:#8a1c13}.formula-health p{margin:5px 0}.health-warning{color:#9a6700!important}.health-critical{color:#ffb3ad!important;animation:health-pulse 1.5s infinite}@keyframes health-pulse{50%{opacity:.55}}
.formula-job-list{display:grid;gap:4px;max-height:190px;overflow:auto;margin:8px 0}.formula-job-list article{display:flex;justify-content:space-between;align-items:center;gap:10px;border-bottom:1px solid var(--line);padding:6px}.formula-job-list article>span:last-child{display:flex;gap:5px}
.spill-child{background-image:linear-gradient(135deg,transparent 78%,#107c4166 79%,#107c4166 88%,transparent 89%)!important}
.permissions-wrap{max-width:75vw;max-height:55vh;overflow:auto}.permissions-grid th,.permissions-grid td{min-width:80px;text-align:center}.permissions-grid input{width:18px;height:18px}.empty-sheet{display:grid;place-items:center;height:100%;color:#666}
.cell-link{color:#0563c1;text-decoration:underline}.cell-sparkline{display:block;width:100%;height:26px;min-width:72px;overflow:visible}
.cell-image-content{display:flex;align-items:center;gap:6px;white-space:normal}.cell-image-content img{display:block;max-width:220px;max-height:140px;object-fit:contain}
.integration-list{display:grid;gap:6px;max-height:190px;overflow:auto}.integration-list article{display:flex;justify-content:space-between;align-items:center;gap:12px;border-bottom:1px solid var(--line);padding:7px}.integration-list small{display:block;color:#666}.token-once{margin:12px 0;padding:12px;border:1px solid #e0a000;background:#fff8d8;border-radius:5px}.token-once textarea{width:100%;margin:8px 0;font-family:Consolas,monospace;word-break:break-all}
@media(max-width:760px){.titlebar{grid-template-columns:1fr auto}.titlebar>#book-title{display:none}.tabs button:nth-child(n+4){display:none}.ribbon{overflow-x:auto}#app{grid-template-rows:42px 34px 74px 34px 1fr 32px}}
[hidden]{display:none!important}
.ribbon{overflow-x:auto}
#app.observer-mode{grid-template-rows:42px auto 1fr}
.observer-mode>.tabs,.observer-mode>.formula-bar,.observer-mode>footer{display:none}
.observer-mode>.ribbon .ribbon-group{display:none}.observer-mode>.ribbon .manager-or-observer{display:flex}
.observer-dashboard{padding:24px;max-width:1600px;margin:auto}
.dashboard-cards{display:flex;gap:16px;flex-wrap:wrap;margin:20px 0}
.dashboard-cards article{padding:16px;background:#fff;border:1px solid #c8d8cf;border-radius:8px;min-width:180px}
.dashboard-cards b{display:block;font-size:30px;color:#107c41}
.observer-table-wrap{overflow:auto}
.observer-dashboard table{width:100%;border-collapse:collapse;background:white}
.observer-dashboard th,.observer-dashboard td{padding:12px;border:1px solid #d4dfd8;text-align:left}
.observer-dashboard th{background:#eaf4ef}
.observer-dashboard progress{max-width:130px;accent-color:#107c41}
.report-overdue{color:#a4262c}.report-submitted{color:#107c41}
.status-dataError{color:#a4262c}.analytics-data-errors{background:#fff4ce;border-left:4px solid #a4262c;padding:12px;margin-top:16px}.analytics-data-errors ul{margin-bottom:0}
@media print{body{background:#fff!important;overflow:visible!important}#login,.titlebar,.tabs,.ribbon,.formula-bar,footer,dialog{display:none!important}#app{display:block!important}#grid-wrap{display:block!important;position:static!important;overflow:visible!important;padding:0!important}#grid{width:100%!important;font-size:9pt;border-collapse:collapse}#grid th,#grid td{border:1px solid #777!important;min-width:0!important;height:auto!important;color:#000!important;background:#fff!important}}