:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:#343434;background:white;--blue:#346295;--line:#dfe5ec;--sand:#e9dcbe;--soft:#eaf0f7}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:flex;flex-direction:column;font-size:15px;line-height:1.5}button,input,select,textarea{font:inherit;color:inherit}button,a,input,select,textarea,summary{outline-offset:3px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--blue)}button{background:white;border:1px solid var(--line);border-radius:4px;padding:9px 15px;cursor:pointer;min-height:40px}button:hover{background:var(--soft);border-color:#9fb8d3}button:disabled{opacity:.45;cursor:default}.primary{background:var(--blue);border-color:var(--blue);color:white}.primary:hover{background:#27496f}.danger{color:#a1241c}.danger:hover{background:#fff1ef}input,select,textarea{width:100%;padding:10px 12px;border:1px solid #cbd6e1;border-radius:4px;background:white;min-height:42px}textarea{font-family:Menlo,Consolas,monospace;font-size:13px;resize:vertical}label{display:block;font-weight:600;margin-bottom:16px}label input,label select,label textarea{margin-top:6px;font-weight:400}main{padding:28px 32px;flex:1;width:100%;max-width:1900px;margin:auto}.page-heading{display:flex;align-items:center;justify-content:space-between;gap:30px;margin-bottom:22px}h1{font-size:28px;margin:0;font-weight:600}h2{font-size:20px;margin:0 0 16px;font-weight:600}h3{font-size:16px;margin:24px 0 10px}p{margin:0 0 18px}.title-label{width:min(440px,50%);font-size:13px;margin:0}.toolbar{display:flex;gap:10px;align-items:center;border-bottom:1px solid var(--sand);padding-bottom:20px;margin-bottom:24px}.toolbar #clear{margin-left:auto;background:#c0392b;border-color:#c0392b;color:#fff}.toolbar #clear:hover{background:#a52a1c;border-color:#a52a1c}#save-state{font-size:13px;color:#657280;margin-left:8px}.analysis-workspace{display:grid;grid-template-columns:235px minmax(0,1fr) 240px;gap:24px;min-height:64vh}.sources{border-right:1px solid var(--line);padding-right:22px}.source-actions{display:grid;gap:8px;margin-bottom:22px}.sources h2,.inspector h2{font-size:16px}.source-item{display:block;width:100%;text-align:left;padding:12px;margin:0 0 8px;overflow-wrap:anywhere}.source-item[aria-current=true]{background:var(--soft);border-color:var(--blue);box-shadow:inset 3px 0 var(--blue)}.source-item small{display:block;color:#657280;margin-top:4px}.text-button{border:0;color:var(--blue);padding:8px 0;text-align:left;font-size:13px}.viewer{min-width:0;border:1px solid var(--sand);border-radius:4px;padding:26px;align-self:start;min-height:480px}#empty{max-width:620px;padding:45px 8px}#empty p{color:#526273;line-height:1.8}.object-heading{display:flex;align-items:center;justify-content:space-between;gap:20px}.object-heading h2{font-size:25px;margin:0}.eyebrow{color:#657280;font-size:13px;margin:0 0 5px}#views{display:flex;gap:5px;margin:24px 0;border-bottom:1px solid var(--line);flex-wrap:wrap}#views button{border:0;border-radius:0;border-bottom:3px solid transparent;padding:10px 16px}#views button[aria-pressed=true]{color:var(--blue);border-bottom-color:var(--blue);background:var(--soft)}.table-scroll{overflow:auto;max-height:58vh}table{border-collapse:collapse;width:100%;font-size:14px;font-variant-numeric:tabular-nums}th,td{text-align:right;padding:12px 15px;border-bottom:1px solid var(--line);white-space:nowrap}th:first-child,td:first-child{text-align:left}th{background:#f4f7fa;font-weight:600;position:sticky;top:0}td:first-child{font-weight:500}.inspector{border-left:1px solid var(--line);padding-left:22px}.inspector>button{width:100%;text-align:left;margin-bottom:10px}.inspector .primary{line-height:1.5}.inspector p,.inspector li{font-size:13px;color:#526273}.source-link{padding:4px 0;border:0;color:var(--blue);min-height:0;text-align:left;overflow-wrap:anywhere}.note{font-size:13px;color:#526273;line-height:1.7;margin:14px 0}.result-value{font-size:32px;color:#27496f;margin:20px 0;font-variant-numeric:tabular-nums}.formula-display{padding:16px;background:#f5f8fb;font-family:Menlo,monospace;overflow-wrap:anywhere}.form-error{color:#a1241c;white-space:pre-line;font-size:14px}#notice{background:var(--soft);padding:12px 16px;border-left:3px solid var(--blue)}#notice.error{background:#fff2ef;border-color:#a1241c}.plot-view{width:100%;height:auto;display:block}.plot-controls,.two-fields{display:grid;grid-template-columns:1fr 1fr;gap:16px}footer{background:#e5ebf2;color:#657280;display:flex;justify-content:space-between;padding:18px 32px;font-size:12px}dialog{width:min(720px,calc(100% - 32px));max-height:90vh;border:1px solid var(--sand);border-radius:4px;padding:28px;color:#343434}dialog::backdrop{background:#172b4266}dialog h2{font-size:23px}dialog p{line-height:1.7}#prompt-dialog{max-width:500px}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:24px}details{font-size:13px;color:#526273;margin-top:18px}details p{margin-top:12px}summary{cursor:pointer}math-field{display:block;border:1px solid #cbd6e1;border-radius:4px;padding:12px;font-size:23px;min-height:65px}math-field::part(virtual-keyboard-toggle),math-field::part(menu-toggle){display:none}.binding{display:grid;grid-template-columns:70px minmax(0,1fr);align-items:center;gap:15px}.binding select{margin:0}.fit-choice{display:flex;gap:12px;align-items:start;border-bottom:1px solid var(--line);padding:14px 0}.fit-choice input{width:18px;min-height:18px;margin:4px 0}.skip-link{position:fixed;top:-100px;background:white;padding:12px;z-index:10}.skip-link:focus{top:10px}[hidden]{display:none!important}@media(min-width:1450px){.analysis-workspace{grid-template-columns:260px minmax(0,1fr) 270px;gap:30px}.viewer{padding:32px}}@media(max-width:1100px){main{padding:24px 20px}.analysis-workspace{grid-template-columns:210px minmax(0,1fr)}.inspector{grid-column:2;border:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}.inspector h2,.inspector section{width:100%}.inspector>button{width:auto;margin:0}.sources{grid-row:span 2}}@media(max-width:700px){.page-heading{align-items:start;flex-direction:column;gap:14px}.title-label{width:100%}.toolbar{flex-wrap:wrap}#save-state{order:5;width:100%;margin:0}.analysis-workspace{display:flex;flex-direction:column}.sources{border:0;padding:0}.source-actions{display:flex;flex-wrap:wrap}.source-item{width:auto;display:inline-block;margin-right:6px}.source-item small{display:none}.viewer{padding:18px;min-height:350px}.inspector{border-top:1px solid var(--line);padding-top:20px}.two-fields{grid-template-columns:1fr}.object-heading{align-items:start}.object-heading h2{font-size:22px}footer{gap:12px;flex-wrap:wrap;padding:18px}dialog{padding:22px}}
@media(max-width:700px){.viewer{width:100%;min-width:0}.sources,.inspector{width:100%;min-width:0}.source-item{max-width:100%}.object-heading{flex-wrap:wrap}.plot-controls{grid-template-columns:1fr}math-field{max-width:100%;overflow-x:auto}}

.dataset-item{padding:15px 12px}.dataset-item strong{font-size:16px;font-weight:600}
.quantities-heading{font-size:14px;margin:24px 0 12px}
#dataset-views{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
#dataset-views button[aria-pressed=true]{background:var(--soft);border-color:var(--blue);color:var(--blue)}


.inspector .data-actions-title{margin-top:24px}


#dataset-calculations{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:16px}#dataset-calculations>span{font-size:13px;color:#657280;margin-right:4px}#dataset-calculations button[aria-pressed=true]{background:var(--soft);border-color:var(--blue);color:var(--blue)}



.calculation-navigation{display:flex;align-items:center;flex-wrap:wrap;gap:12px}.calculation-navigation #dataset-calculations{flex:1}.calculation-navigation #edit-calculation{margin-top:16px;white-space:nowrap}
.source-unit-field{margin-left:85px;max-width:360px}.source-unit-field input[readonly]{background:#f5f7fa}@media(max-width:700px){.source-unit-field{margin-left:0;max-width:none}}

.dataset-heading-actions{display:flex;align-items:center;justify-content:flex-end;flex-wrap:wrap;gap:8px}.dataset-heading-actions button{white-space:nowrap}@media(max-width:700px){.dataset-heading-actions{justify-content:flex-start}}

/* Insert data table dialog (shared editor, insert-data.js) */
.source-actions #add-source-text{margin-top:2px}
dialog.tframe{width:min(940px,calc(100% - 24px));max-width:none;padding:0;overflow:hidden}
dialog.tframe .titlebar{background:var(--blue);color:#fff;padding:14px 22px;font-size:17px;font-weight:600}
dialog.tframe .titlebar-note{display:block;font-size:12px;font-weight:400;color:#dbe6f2;margin-top:3px}
.table-body{padding:20px 22px;display:flex;flex-direction:column;gap:14px;max-height:78vh;overflow:auto}
.table-body .tabs{display:flex;flex-wrap:wrap;gap:6px}
.table-body .tab{display:inline-flex;align-items:center;gap:7px;padding:7px 13px;min-height:0;border:1px solid var(--line);border-radius:4px;background:#fff;font-size:14px}
.table-body .tab.active{background:var(--soft);border-color:var(--blue);color:var(--blue)}
.table-body .tab.add{border-style:dashed;color:var(--blue)}
.table-body .swatch{width:11px;height:11px;border-radius:2px;display:inline-block}
.table-tools{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.table-tools .small{padding:6px 11px;min-height:0;font-size:13px}
.table-tools .spacer{flex:1}
#table-count{font-size:13px;color:#657280}
.table-body .hint{font-size:13px;color:#526273;margin:0}
.table-body .hint-inline{color:#8a97a6;font-weight:400}
.grid-wrap{border:1px solid var(--line);border-radius:4px;overflow:auto;max-height:50vh}
table.grid{border-collapse:collapse;width:100%;font-size:14px;font-variant-numeric:tabular-nums}
table.grid th,table.grid td{border:1px solid var(--line);padding:0;text-align:left}
table.grid thead th{background:#f4f7fa;padding:8px 10px;font-weight:600;position:sticky;top:0;z-index:1;white-space:nowrap}
table.grid th.rownum,table.grid td.rownum{width:38px;text-align:right;padding:6px 8px;color:#8a97a6;background:#f8fafc}
table.grid td input{width:100%;border:0;border-radius:0;min-height:0;padding:7px 10px;background:transparent}
table.grid td input:focus{outline:2px solid var(--blue);outline-offset:-2px;background:#fff}
table.grid td.rowdel{width:34px;text-align:center}
.rowdel-btn{border:0;background:transparent;color:#a1a9b4;min-height:0;padding:4px 8px;font-size:16px;line-height:1;cursor:pointer}
.rowdel-btn:hover{color:#c0392b;background:#fff1ef}
.import-panel{border:1px dashed var(--line);border-radius:4px;padding:14px;display:flex;flex-direction:column;gap:12px}
.import-panel .field{margin:0}.import-panel label{margin:0 0 4px}
#import-mapping{display:flex;flex-wrap:wrap;gap:12px}#import-mapping .field{min-width:150px}#import-mapping select{min-height:38px}
.table-body .actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.table-body .actions .hint{margin-left:auto}
@media(max-width:700px){dialog.tframe{width:calc(100% - 12px)}.table-body{padding:16px}}

/* Insert data: data-type selector + histogram/fit entry (parity with Make a Plot) */
.insert-type-tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.insert-type-tabs .type-tab{min-height:34px;padding:6px 14px;border-radius:6px;font-size:13px;background:#fff;border:1px solid var(--line);color:#526273}
.insert-type-tabs .type-tab:hover:not(.active){background:var(--soft);border-color:#9fb8d3}
.insert-type-tabs .type-tab.active{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:600}
.table-body .ins-hist-field{display:flex;flex-direction:column;gap:4px}
.table-body .ins-hist-field>label{font-size:13px;font-weight:600}
.table-body .ins-hist-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.table-body .hint-inline{font-weight:400;color:#8a97a6;font-size:12px}
.insert-histogram{display:flex;flex-direction:column;gap:12px}
.insert-histogram textarea{min-height:0}
.table-body .table-fit-settings{border:1px solid var(--line);border-radius:4px;padding:14px 16px;margin:0;display:flex;flex-direction:column;gap:12px}
.table-body .table-fit-settings legend{font-size:13px;font-weight:600;padding:0 6px}
.table-body .table-fit-settings .ins-hist-row{grid-template-columns:1fr 1fr}
@media(max-width:640px){.table-body .ins-hist-row{grid-template-columns:1fr}}

/* Dropping a saved session onto the page */
.drop-overlay { position:fixed; inset:0; z-index:60; display:grid; place-items:center; pointer-events:none; background:rgba(234,240,247,.9); border:3px dashed #346295; color:#346295; font-size:19px; font-weight:600; }
.drop-overlay[hidden] { display:none; }

/* Calculation formula bar: Name = formula = result */
.calc{max-width:1040px;margin:0 auto;padding:24px 28px 28px;border:1px solid var(--line);border-radius:6px;background:white}
.calc-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:18px}
.calc-head h2{font-size:24px;margin:0}.calc-dataset{margin:2px 0 0;color:#657280;font-size:14px}
.calc-head-actions{display:flex;gap:8px;flex-shrink:0}
.calc-bar{display:grid;grid-template-columns:minmax(120px,190px) auto minmax(0,1fr);align-items:center;gap:10px 12px;padding:16px;border:1px solid #c9d6e4;border-radius:6px;background:#f7f9fc}
.calc-name{border:1px solid transparent;border-bottom:1px dashed #9fb2c7;background:transparent;border-radius:3px;padding:8px 6px;font-size:18px;font-weight:600;text-align:right;min-width:0;width:100%}
.calc-name:hover,.calc-name:focus{border-color:#9fb8d3;background:white}
.calc-name::placeholder{color:#8a97a5;font-weight:500}
.calc-eq{font-size:22px;color:#526273;text-align:center}
.calc-formula{width:100%;font-size:22px;padding:8px 10px;border:1px solid #c9d6e4;border-radius:4px;background:white;min-height:52px}
.calc-formula:focus-within{border-color:var(--blue);outline:2px solid #346295}
.calc-eq-result{grid-column:2}
.calc-result{grid-column:3;display:flex;align-items:baseline;flex-wrap:wrap;gap:6px 14px;min-height:40px}
.calc-value{font-size:22px;font-variant-numeric:tabular-nums}
.calc-num{font-weight:600;color:#1f3e60}
.calc-kind{margin-left:8px;font-size:14px;color:#657280}
.calc-placeholder{color:#a3afbb}
.calc-unit{display:flex;align-items:baseline;gap:6px;margin:0;font-size:13px;color:#657280;font-weight:400}
.calc-unit input{width:110px;padding:5px 8px;font-size:17px;border:1px solid #c9d6e4;border-radius:4px;background:white;color:#1f3e60}
.calc-unit-hint{font-size:12px;color:#7a8794}
.calc-error{margin:10px 0 0;min-height:0}.calc-error:empty{display:none}
.calc-rows{margin-top:12px}.calc-rows:empty{display:none}.calc-rows table{max-width:520px}
.calc-symbols{display:grid;gap:6px;margin-top:14px}.calc-symbols:empty{display:none}
.calc-symbol{display:flex;align-items:center;flex-wrap:wrap;gap:6px 12px;padding:6px 10px;border-radius:4px;font-size:14px}
.calc-symbol>.calc-sym{min-width:34px;font-size:18px}
.calc-symbol.is-open{background:#f3f6fa;border:1px solid var(--line)}
.calc-symbol.is-missing{background:#fff7e8;border:1px solid #edd3a1}
.calc-ask{font-weight:600;color:#3f4b57}
.calc-what{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}.calc-what small{color:#657280;font-size:13px}
.calc-src-unit{display:flex;align-items:baseline;gap:6px;margin:0;font-size:13px;color:#657280;font-weight:400}.calc-src-unit input{width:90px;padding:3px 7px}
.calc-literal{display:flex;align-items:center;gap:6px}.calc-literal input{width:96px;padding:5px 8px}.calc-literal .calc-literal-unit{width:84px}
.calc-link{border:0;background:none;min-height:0;padding:2px 4px;color:var(--blue);text-decoration:underline;text-underline-offset:2px;font-size:13px}
.calc-link:hover{background:none;color:#27496f}
.calc-sub{display:flex;align-items:baseline;gap:10px;font-size:15px;margin:24px 0 10px}.calc-sub span{font-size:13px;font-weight:400;color:#7a8794}
.calc-group{display:grid;grid-template-columns:130px minmax(0,1fr);gap:8px 14px;align-items:start;padding:8px 0;border-top:1px solid #eef1f5}
.calc-group-name{font-size:13px;color:#526273;padding-top:9px}.calc-group-name code{display:block;margin-top:4px;font-size:11px;color:#7a8794;overflow-wrap:anywhere}
.calc-chips{display:flex;flex-wrap:wrap;gap:8px}
.calc-chip{display:inline-flex;align-items:center;gap:9px;text-align:left;min-height:0;padding:6px 12px 6px 9px;border-radius:999px;border-color:#cdd8e4}
.calc-chip:hover{border-color:var(--blue);background:#eef4fb}
.calc-chip .calc-sym{display:inline-flex;align-items:baseline;justify-content:center;line-height:28px;min-width:28px;height:28px;padding:0 6px;border-radius:999px;background:#e6eef8;color:#1f3e60;font-size:16px}
.calc-chip-text{display:flex;flex-direction:column;line-height:1.25}.calc-chip-text small{color:#657280;font-size:12px}.calc-chip-text:empty{display:none}
.calc-chip-name small{color:#7a8794}
.calc-chips-inline{display:flex;flex-wrap:wrap;gap:6px}.calc-chips-inline .calc-chip{padding:3px 10px 3px 4px;font-size:13px}.calc-chips-inline .calc-chip .calc-sym{height:24px;line-height:24px;min-width:24px;font-size:14px}
.calc-chip.is-current{border-color:var(--blue);background:#eef4fb}
.calc-number{padding:4px 12px!important;color:#5a3d99;border-color:#d5c9ee;background:#f8f5fd}.calc-number:hover{background:#f1ecfb;border-color:#a993d8}
.calc-sym{font-family:"Times New Roman",Times,serif;font-style:italic}.calc-sym sub{font-size:.7em}
.calc-help{margin-top:22px;font-size:14px;color:#3f4b57}.calc-help ul{margin:8px 0 0;padding-left:20px}.calc-help li{margin:4px 0}
@media(max-width:760px){.calc{padding:18px}.calc-head{flex-direction:column}.calc-bar{grid-template-columns:auto minmax(0,1fr)}.calc-name{grid-column:1/-1;text-align:left}.calc-bar>.calc-eq:not(.calc-eq-result){grid-column:1}.calc-eq-result{grid-column:1}.calc-result{grid-column:2}.calc-group{grid-template-columns:1fr}.calc-group-name{padding-top:0}}