:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--page:#f6f6f3;--surface:#fcfcfb;--surface-2:#f1f0ec;--ink:#0b0b0b;--ink-2:#52514e;--muted:#898781;--grid:#e7e6e0;--axis:#c3c2b7;--border:#0b0b0b17;--accent:#2a78d6;--accent-strong:#1c5cab;--accent-wash:#2a78d61a;--series-1:#2a78d6;--series-2:#eb6834;--series-3:#1baf7a;--good:#0ca30c;--good-text:#006300;--warning:#fab219;--critical:#d03b3b;--warn-wash:#fab21924;--critical-wash:#d03b3b14;--radius:14px;--shadow:0 1px 2px #0b0b0b0a, 0 4px 16px #0b0b0b0a;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:15px;line-height:1.5}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--page:#0d0d0d;--surface:#1a1a19;--surface-2:#242422;--ink:#f0efec;--ink-2:#c3c2b7;--muted:#898781;--grid:#2c2c2a;--axis:#45453f;--border:#ffffff17;--accent:#3987e5;--accent-strong:#86b6ef;--accent-wash:#3987e529;--series-1:#3987e5;--series-2:#d95926;--series-3:#199e70;--good-text:#0ca30c;--warn-wash:#fab2191f;--critical-wash:#d03b3b29;--shadow:none}}*{box-sizing:border-box}html,body{background:var(--page);color:var(--ink);margin:0}h1,h2,h3,p{margin:0}button,input,select{font:inherit;color:inherit}button{cursor:pointer}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.muted{color:var(--ink-2);font-weight:400}.small{font-size:.84rem}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.tag{text-transform:uppercase;letter-spacing:.05em;color:var(--ink-2);border:1px solid var(--border);border-radius:999px;padding:0 7px;font-size:.66rem;font-weight:650;line-height:1.6}.tag.req{color:var(--accent-strong);border-color:var(--accent)}.chev{border-right:1.5px solid var(--ink-2);border-bottom:1.5px solid var(--ink-2);flex:none;justify-self:end;width:8px;height:8px;transition:transform .15s;transform:rotate(-45deg)}[aria-expanded=true]>.chev{transform:rotate(45deg)}.shell{grid-template:"top top""side main"1fr/220px minmax(0,1fr);min-height:100vh;display:grid}.topbar{background:var(--surface);border-bottom:1px solid var(--border);z-index:10;grid-area:top;align-items:center;gap:16px;height:56px;padding:0 20px;display:flex;position:sticky;top:0}.brand{align-items:center;gap:10px;font-size:1.05rem;font-weight:700;display:flex}.settings{align-items:center;gap:12px;margin-left:auto;display:flex}.sig-select{color:var(--ink-2);align-items:center;gap:6px;font-size:.84rem;display:flex}.sig-select select{height:32px;padding:0 6px}.app-select-mobile{flex:1;min-width:0;display:none}.app-select-mobile select{width:100%}.sidebar{grid-area:side;align-self:start;height:calc(100vh - 56px);padding:20px 12px;position:sticky;top:56px;overflow-y:auto}.nav-group+.nav-group{margin-top:18px}.nav-heading{text-align:left;text-transform:uppercase;letter-spacing:.07em;width:100%;color:var(--muted);background:0 0;border:0;border-radius:8px;align-items:center;gap:8px;padding:4px 10px 6px;font-size:.7rem;font-weight:650;display:flex}.nav-heading>span:first-child{flex:1}.nav-heading:not(:disabled){cursor:pointer}.nav-heading:not(:disabled):hover{color:var(--ink);background:var(--surface-2)}.nav-heading:disabled{color:var(--muted)}.nav-count{letter-spacing:0;background:var(--surface-2);color:var(--ink-2);border-radius:999px;padding:0 6px;font-size:.68rem;font-weight:600}.nav-section+.nav-section{margin-top:12px}.nav-subheading{color:var(--muted);padding:2px 10px 3px;font-size:.74rem;font-weight:600}.nav-item{text-align:left;width:100%;color:var(--ink-2);background:0 0;border:0;border-radius:8px;justify-content:space-between;align-items:center;padding:7px 10px;font-size:.9rem;display:flex}.nav-item:hover{background:var(--surface-2);color:var(--ink)}.nav-item.active{background:var(--surface);color:var(--ink);box-shadow:0 0 0 1px var(--border);font-weight:600}.main{grid-area:main;min-width:0;padding:24px 28px 48px 8px}.page-head{margin:0 0 18px}.page-head h1{letter-spacing:-.01em;font-size:1.45rem;font-weight:680}.page-head>p{color:var(--ink-2);margin-top:2px}.uses{max-width:860px;margin-top:8px}.uses-toggle{color:var(--accent-strong);background:0 0;border:0;align-items:center;gap:8px;padding:3px 0;font-size:.86rem;font-weight:600;display:inline-flex}.uses-toggle:hover>span:first-child{text-decoration:underline}.uses-toggle .chev{border-color:var(--accent-strong);margin-left:2px}.uses-body{border:1px solid var(--border);background:var(--surface);border-radius:12px;margin-top:8px;padding:14px 16px}.uses-list{color:var(--ink);margin:0;padding-left:18px;font-size:.9rem}.uses-list li+li{margin-top:4px}.uses-heading{text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin:14px 0 6px;font-size:.7rem;font-weight:700}.example-list{margin:0;padding:0;list-style:none}.example-card{align-items:center;gap:16px;padding:10px 0;display:flex}.example-card+.example-card{border-top:1px solid var(--grid)}.example-text{flex:1;min-width:0;font-size:.88rem}.example-text p{color:var(--ink-2);margin-top:2px}.example-card .btn{flex:none}.example-note{max-width:110ch;color:var(--ink-2);margin:0 0 14px;font-size:.86rem}.example-note .gf{text-transform:uppercase;letter-spacing:.07em;color:var(--accent-strong);margin-right:6px;font-size:.68rem;font-weight:700}.example-note strong{color:var(--ink)}@media (width<=640px){.example-card{flex-direction:column;align-items:flex-start;gap:8px}}.title-row{align-items:center;gap:6px;display:flex}.star,.icon-btn{width:32px;height:32px;color:var(--muted);background:0 0;border:0;border-radius:8px;flex:none;place-items:center;display:inline-grid}.star:hover,.icon-btn:hover{background:var(--surface-2);color:var(--ink)}.star.on{color:var(--accent)}.head-links{flex-wrap:wrap;gap:2px 22px;margin-top:8px;display:flex}.page-head .uses{margin-top:0}.history-note{color:var(--ink-2);margin:0 0 6px;font-size:.82rem}.history-list{margin:0;padding:0;list-style:none}.history-card{align-items:center;gap:14px;padding:10px 0;display:flex}.history-card+.history-card{border-top:1px solid var(--grid)}.history-text{flex:1;min-width:0;font-size:.86rem}.history-meta{color:var(--ink-2);flex-wrap:wrap;align-items:baseline;gap:2px 10px;font-size:.78rem;display:flex}.history-meta time{color:var(--ink);font-weight:650}.history-line{color:var(--ink-2);flex-wrap:wrap;gap:1px 14px;margin-top:3px;display:flex}.history-results{color:var(--ink)}.history-results .arrow{color:var(--muted);margin-right:-6px}.history-item{white-space:nowrap;font-variant-numeric:tabular-nums}.history-actions{flex:none;align-items:center;gap:2px;display:flex}.history-more{margin-top:4px}.history-foot{border-top:1px solid var(--grid);justify-content:flex-end;margin-top:8px;padding-top:10px;display:flex}.link-btn.danger,.btn.danger{color:var(--critical)}.btn.danger{border-color:var(--critical)}.confirm{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:8px;font-size:.86rem;display:inline-flex}@media (width<=640px){.history-card{align-items:flex-start;gap:6px}.history-actions{flex-direction:column}}.drawer{border:0;border-left:1px solid var(--border);background:var(--page);width:min(580px,100vw);max-width:100vw;height:100%;max-height:none;color:var(--ink);margin:0;padding:0;position:fixed;inset:0 0 0 auto;overflow-y:auto;box-shadow:-8px 0 32px #0000002e}.drawer::backdrop{background:#0b0b0b66}.drawer-inner{padding:16px 20px 28px}.drawer-head{justify-content:space-between;align-items:center;margin-bottom:2px;display:flex}.drawer-head h2{font-size:1.15rem;font-weight:680}.drawer-empty{color:var(--ink-2);margin-top:18px;font-size:.9rem}.drawer-group{border:1px solid var(--border);background:var(--surface);border-radius:12px;margin-top:10px}.drawer-group-head{text-align:left;background:0 0;border:0;border-radius:12px;align-items:center;gap:10px;width:100%;padding:11px 14px;font-size:.92rem;display:flex}.drawer-group-name{flex:1;min-width:0;font-weight:620}.drawer-group-when{color:var(--muted);white-space:nowrap;font-size:.76rem}.drawer-group-body{border-top:1px solid var(--grid);padding:0 14px 12px}.drawer-foot{justify-content:flex-end;margin-top:16px;display:flex}.top-btn{border:1px solid var(--border);height:32px;color:var(--ink-2);background:0 0;border-radius:8px;align-items:center;gap:6px;padding:0 10px;font-size:.84rem;display:inline-flex}.top-btn:hover{background:var(--surface-2);color:var(--ink)}.nav-search{border:1px solid var(--border);background:var(--surface);height:34px;color:var(--muted);border-radius:9px;align-items:center;gap:8px;margin:0 0 16px;padding:0 10px;display:flex}.nav-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-wash)}.nav-search input{min-width:0;color:var(--ink);background:0 0;border:0;outline:none;flex:1;padding:0;font-size:.88rem}.nav-search input::placeholder{color:var(--muted)}.nav-heading.static{cursor:default}.nav-heading.static svg{width:12px;height:12px;color:var(--accent)}.nav-item-name{flex-direction:column;min-width:0;display:flex}.nav-item-sub{color:var(--muted);font-size:.72rem;font-weight:400}.nav-empty{color:var(--ink-2);padding:4px 10px;font-size:.82rem}.fav-chips{scrollbar-width:none;gap:6px;margin:0 0 12px;display:none;overflow-x:auto}.chip{border:1px solid var(--border);background:var(--surface);height:30px;color:var(--ink-2);white-space:nowrap;border-radius:999px;flex:none;padding:0 12px;font-size:.82rem}.chip.on{border-color:var(--accent);color:var(--ink);font-weight:600}@media (width<=760px){.fav-chips{display:flex}.top-btn{padding:0 7px}.top-btn .top-btn-label,.top-btn .count{display:none}}.scenario-bar{max-width:1360px;margin:0 0 16px}.scenario-tabs{flex-wrap:wrap;gap:6px;display:flex}.scenario{border:1px solid var(--border);background:var(--surface);color:var(--ink-2);white-space:nowrap;border-radius:999px;padding:6px 15px;font-size:.88rem;font-weight:550}.scenario:hover{color:var(--ink);border-color:var(--axis)}.scenario.on{background:var(--ink);border-color:var(--ink);color:var(--surface)}.scenario-summary{color:var(--ink-2);max-width:110ch;margin-top:8px;font-size:.86rem}.scenario-summary .gf{text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin-right:4px;font-size:.68rem;font-weight:700}.scenario-summary .arrow{color:var(--muted);margin:0 6px}.workspace{grid-template-columns:340px minmax(0,1fr);align-items:start;gap:20px;max-width:1360px;display:grid}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);min-width:0}.inputs-panel{flex-direction:column;max-height:calc(100vh - 88px);display:flex;position:sticky;top:72px;overflow:hidden}@media (width<=1023px){.workspace{grid-template-columns:minmax(0,1fr)}.inputs-panel{max-height:none;position:static}.results-panel{scroll-margin-top:68px}}@media (width<=760px){.shell{grid-template-columns:minmax(0,1fr);grid-template-areas:"top""main"}.sidebar{display:none}.app-select-mobile{display:block}.brand span,.sig-select span{display:none}.topbar{gap:10px;padding:0 12px}.settings{gap:8px}.main{padding:16px 12px 40px}.page-head h1{font-size:1.25rem}}.input-form{flex-direction:column;flex:1;min-height:0;display:flex}.input-scroll{flex:1;padding:18px 18px 6px;overflow-y:auto}.in-group{margin-bottom:18px}.in-group-title{text-transform:uppercase;letter-spacing:.07em;color:var(--muted);align-items:center;gap:8px;margin:0 0 8px;font-size:.7rem;font-weight:700;display:flex}.field{min-width:0;margin-bottom:10px}.field-label{align-items:center;gap:6px;margin-bottom:4px;display:flex}.field-label label{color:var(--ink-2);font-size:.86rem}.field-row{align-items:center;gap:6px;display:flex}input[type=text],select{border:1px solid var(--axis);background:var(--surface);border-radius:8px;min-width:0;height:38px;padding:0 10px}input[type=text]{font-variant-numeric:tabular-nums;flex:1}input[type=text]:hover,select:hover{border-color:var(--muted)}.field-row select{flex:none;max-width:50%}select.full,.field>select{width:100%}.sym-prefix{text-align:right;min-width:34px;font-size:1.02rem}.unit-static{color:var(--ink-2);padding:0 4px;font-size:.9rem}.has-error input[type=text]{border-color:var(--critical);background:var(--critical-wash)}.has-warning input[type=text]{border-color:var(--warning)}.help-btn{border:1px solid var(--axis);width:18px;height:18px;color:var(--muted);background:0 0;border-radius:50%;flex:none;padding:0;font-size:.68rem;font-weight:700;line-height:1}.help-btn:hover,.help-btn.on{border-color:var(--accent);color:var(--accent-strong)}.hint{color:var(--ink-2);margin:4px 0 8px;font-size:.8rem}.field-error{color:var(--critical);margin-top:4px;font-size:.8rem;font-weight:600}.gas-summary{background:var(--surface-2);color:var(--ink-2);border-radius:8px;justify-content:space-between;align-items:center;gap:8px;margin-top:8px;padding:7px 10px;font-size:.86rem;display:flex}.gas-fields{margin-top:6px}.link-btn{color:var(--accent-strong);background:0 0;border:0;padding:2px 0;font-size:.84rem;font-weight:600}.link-btn:hover{text-decoration:underline}.isa-row{margin-top:8px}.isa-label{min-width:0;color:var(--ink-2);font-size:.86rem}.isa-link{text-align:left;margin:-4px 0 14px;display:block}.isa-filler{border-top:1px solid var(--grid);padding-top:12px}.isa-actions{gap:16px;display:flex}.issue-link{text-align:left;margin-top:6px;display:block}.advanced{border-top:1px solid var(--grid);padding-top:12px}.advanced-toggle{text-align:left;background:0 0;border:0;align-items:center;gap:10px;width:100%;padding:2px 0;display:flex}.advanced-toggle .in-group-title{flex:none;margin:0}.advanced-summary{text-align:right;min-width:0;color:var(--ink-2);white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:.8rem;overflow:hidden}.advanced-toggle .chev{margin-left:auto}.advanced-body{margin-top:10px}.segmented{background:var(--surface-2);border-radius:9px;flex-wrap:wrap;gap:2px;margin-bottom:10px;padding:3px;display:flex}.segmented.compact{flex-wrap:nowrap;margin:0}.segmented.two-col{grid-template-columns:1fr 1fr;display:grid}.seg{text-align:center;color:var(--ink-2);white-space:nowrap;cursor:pointer;border-radius:7px;flex:auto;padding:5px 7px;font-size:.8rem}.segmented.compact .seg{padding:4px 10px}.seg input{opacity:0;pointer-events:none;position:absolute}.seg.on{background:var(--surface);color:var(--ink);box-shadow:0 0 0 1px var(--border), 0 1px 2px #0000000f;font-weight:600}.seg:focus-within{outline:2px solid var(--accent)}.solve-bar{border-top:1px solid var(--grid);background:var(--surface);padding:12px 18px 16px}.btn{border:1px solid var(--axis);background:var(--surface);border-radius:8px;height:34px;padding:0 14px;font-size:.86rem;font-weight:550}.btn:hover{background:var(--surface-2)}.btn.ghost{border-color:var(--border)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-size:.95rem;font-weight:650}.btn.primary:hover{background:var(--accent-strong);border-color:var(--accent-strong)}.btn.wide{width:100%;height:42px}.btn.attention{box-shadow:0 0 0 4px var(--accent-wash)}.tabs{border-bottom:1px solid var(--grid);scrollbar-width:none;gap:4px;padding:0 12px;display:flex;overflow-x:auto}.tab{color:var(--ink-2);white-space:nowrap;background:0 0;border:0;border-bottom:2px solid #0000;align-items:center;gap:6px;margin-bottom:-1px;padding:14px 10px 12px;font-size:.9rem;font-weight:550;display:inline-flex}.tab:hover{color:var(--ink)}.tab.on{color:var(--ink);border-bottom-color:var(--accent)}.tab-badge{background:var(--surface-2);color:var(--ink-2);border-radius:999px;padding:0 7px;font-size:.7rem;font-weight:650}.stale-note{background:var(--warn-wash);border-bottom:1px solid var(--grid);padding:8px 20px;font-size:.84rem}.tab-panel{padding:20px;transition:opacity .15s}.tab-panel.stale{opacity:.55}.headline{background:var(--surface-2);border-radius:10px;flex-wrap:wrap;align-items:baseline;gap:4px 10px;margin-bottom:16px;padding:10px 14px;display:flex}.headline.warning{background:var(--warn-wash)}.headline-dot{background:var(--accent);border-radius:50%;flex:none;align-self:center;width:9px;height:9px}.headline.warning .headline-dot{background:var(--warning)}.headline-label{color:var(--ink-2);font-size:.84rem}.headline-value{font-weight:650}.tiles{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;margin-bottom:18px;display:grid}@media (width<=760px){.tab-panel{padding:16px 14px}.tabs{padding:0 6px}.tab{padding:13px 8px 11px}.tiles{grid-template-columns:1fr 1fr;gap:8px}.tile-value{font-size:1.15rem}}.tile{border:1px solid var(--border);background:var(--surface);border-radius:10px;padding:10px 12px 11px}.tile.caution{border-color:var(--warning)}.tile-label{color:var(--ink-2);font-size:.78rem;line-height:1.35}.tile-value{letter-spacing:-.01em;margin-top:4px;font-size:1.32rem;font-weight:650;line-height:1.2}.tile-unit{color:var(--ink-2);letter-spacing:0;margin-left:4px;font-size:.84rem;font-weight:500}.tile-note{color:var(--ink-2);margin-top:2px;font-size:.72rem}.issues{margin:0 0 12px;padding:0;list-style:none}.issue{gap:10px;padding:8px 0;font-size:.87rem;line-height:1.45;display:flex}.issue+.issue{border-top:1px solid var(--grid)}.issue-icon{color:#fff;border-radius:50%;flex:0 0 18px;place-items:center;height:18px;margin-top:1px;font-size:.68rem;font-weight:800;display:grid}.issue.error .issue-icon{background:var(--critical)}.issue.warning .issue-icon{background:var(--warning);color:#0b0b0b}.issue.info .issue-icon{background:var(--accent);font-family:Georgia,serif;font-style:italic}.issue-line{margin-top:2px;display:block}.problem h3{margin-bottom:10px;font-size:1rem}.problem .issue.error{background:var(--critical-wash);border:0;border-radius:8px;margin-bottom:6px;padding:10px 12px}.disclosure{border-top:1px solid var(--grid)}.disclosure>summary{cursor:pointer;align-items:center;gap:8px;padding:11px 0;font-size:.9rem;font-weight:600;list-style:none;display:flex}.disclosure>summary::-webkit-details-marker{display:none}.disclosure>summary:after{content:"";border-right:1.5px solid var(--ink-2);border-bottom:1.5px solid var(--ink-2);width:7px;height:7px;margin-left:auto;transition:transform .15s;transform:rotate(-45deg)}.disclosure[open]>summary:after{transform:rotate(45deg)}.count{background:var(--surface-2);color:var(--ink-2);border-radius:999px;padding:0 7px;font-size:.72rem;font-weight:650}.table-scroll{overflow-x:auto}.results-table{border-collapse:collapse;width:100%;margin-bottom:8px;font-size:.88rem}.results-table td,.results-table th{border-bottom:1px solid var(--grid);text-align:left;vertical-align:baseline;padding:5px 8px}.group-row th{text-transform:uppercase;letter-spacing:.07em;color:var(--muted);padding-top:14px;font-size:.68rem;font-weight:700}.res-label{font-weight:500}.res-note{color:var(--ink-2);font-size:.8rem;font-weight:400}.num-cell{font-variant-numeric:tabular-nums;white-space:nowrap;font-weight:600;text-align:right!important}.res-unit{color:var(--ink-2);white-space:nowrap}.res-symbol{white-space:nowrap}.export-row{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:18px;display:flex}.plot-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:26px 24px;display:grid}.plot-cell{min-width:0}.plot-cell.wide{grid-column:1/-1}.worked-toolbar{flex-wrap:wrap;gap:8px;margin-bottom:18px;display:flex}.toolbar-spacer{flex:1}.section-title{margin:0 0 10px;font-size:.95rem;font-weight:650}.section-title .muted{font-size:.85rem}.given{margin-bottom:22px}.given-list{flex-wrap:wrap;gap:6px;margin:0;padding:0;font-size:.86rem;list-style:none;display:flex}.given-list li{background:var(--surface-2);white-space:nowrap;border-radius:999px;padding:3px 11px}.steps{border:1px solid var(--border);border-radius:12px;margin:0;padding:0;list-style:none;overflow:hidden}.step+.step{border-top:1px solid var(--grid)}.step-row{text-align:left;background:0 0;border:0;grid-template-columns:26px minmax(0,1fr) auto 12px;align-items:center;gap:12px;width:100%;padding:11px 14px;display:grid}.step-row:hover,.step.open .step-row{background:var(--surface-2)}.step-n{width:24px;height:24px;color:var(--accent-strong);background:var(--accent-wash);border-radius:50%;place-items:center;font-size:.74rem;font-weight:700;display:grid}.step-title{min-width:0;font-size:.9rem;font-weight:560}.step-peek{color:var(--ink-2);white-space:nowrap;text-overflow:ellipsis;justify-self:end;gap:14px;max-width:360px;font-size:.82rem;display:flex;overflow:hidden}@media (width<=700px){.step-row{grid-template-columns:26px minmax(0,1fr) 12px;row-gap:2px}.step-peek{grid-area:2/2;justify-self:start;max-width:100%}.step-row .chev{grid-area:1/3}}.step-body{padding:6px 18px 18px 52px}@media (width<=700px){.step-body{padding:6px 14px 16px}}.step-why{color:var(--ink-2);margin:4px 0 10px;font-size:.9rem}.step-block{margin:8px 0}.step-label{text-transform:uppercase;letter-spacing:.07em;color:var(--muted);font-size:.68rem;font-weight:700}.tex-block{padding:2px 0;overflow:auto hidden}.tex-block .katex-display{text-align:left;margin:.35em 0}.tex-block .katex-display>.katex{text-align:left}.step-results{margin:4px 0;padding:0;list-style:none}.step-results li{padding:1px 0}.step-note{color:var(--ink-2);font-size:.84rem}.solver{background:var(--surface-2);border-radius:8px;margin:10px 0;font-size:.85rem}.solver>summary{cursor:pointer;flex-wrap:wrap;justify-content:space-between;gap:4px 12px;padding:8px 12px;font-weight:550;display:flex}.solver[open]>summary{border-bottom:1px solid var(--grid)}.solver>.tex-block,.solver>.iter-grid{padding:0 12px}.solver .ok{color:var(--good-text);font-weight:650}.solver .bad{color:var(--critical);font-weight:650}.iter-grid{grid-template-columns:max-content 1fr;gap:2px 14px;margin:4px 0 10px;display:grid}.iter-grid dt{color:var(--ink-2)}.iter-grid dd{margin:0}.step-notes{margin:8px 0;padding-left:1.2rem;font-size:.86rem}.cite{color:var(--muted);margin-top:6px;font-size:.76rem}.fine-print{color:var(--muted);margin-top:12px;font-size:.78rem}.theory .lead{color:var(--ink-2);max-width:75ch;margin-bottom:18px}.theory .section-title{margin-top:20px}.eq-list{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:10px 20px;margin:0;padding:0;list-style:none;display:grid}.eq-name{font-size:.84rem;font-weight:600}.sets,.plain-list,.refs{margin:6px 0 0;padding-left:1.3rem;font-size:.89rem}.plain-list li,.refs li,.sets li{margin-bottom:4px}.set-symbol{margin-right:6px;display:inline-block}.chart{min-width:0;margin:0}.chart-title{margin-bottom:4px;font-size:.9rem;font-weight:600}.chart-body{width:100%;position:relative}.chart-body svg{display:block;overflow:visible}.chart-caption{color:var(--ink-2);margin-top:4px;font-size:.78rem}.legend{color:var(--ink-2);gap:16px;font-size:.8rem;display:flex}.legend-item{align-items:center;gap:6px;display:inline-flex}.legend-key{border-radius:2px;width:14px;height:3px;display:inline-block}.legend-key.dashed{height:2px;-webkit-mask:repeating-linear-gradient(90deg,#000 0 4px,#0000 4px 7px);mask:repeating-linear-gradient(90deg,#000 0 4px,#0000 4px 7px)}.grid-line{stroke:var(--grid);stroke-width:1px}.axis-line{stroke:var(--axis);stroke-width:1px}.tick{fill:var(--muted);font-variant-numeric:tabular-nums;font-size:11px}.axis-title{fill:var(--ink-2);font-size:11.5px}.marker-line{stroke:var(--axis);stroke-width:1px}.marker-text{fill:var(--ink-2);font-size:11px}.end-label{fill:var(--ink-2);font-size:11.5px}.crosshair{stroke:var(--ink-2);stroke-width:1px}.nozzle-fill{fill:var(--series-1);fill-opacity:.1}.nozzle-wall{fill:none;stroke:var(--ink);stroke-width:2px;stroke-linejoin:round;stroke-linecap:round}.centerline{stroke:var(--muted);stroke-width:1px;stroke-dasharray:10 3 2 3}.dim-line{stroke:var(--axis);stroke-width:1px}.sch{fill:none;stroke-linecap:round;stroke-linejoin:round}.sch-jet{fill:var(--series-1);fill-opacity:.08;stroke:none}.sch-axis{stroke:var(--muted);stroke-width:1px;stroke-dasharray:10 3 2 3}.sch-wall{stroke:var(--ink);stroke-width:2.5px}.sch-boundary{stroke:var(--ink-2);stroke-width:1.2px;stroke-dasharray:5 4}.sch-shock{stroke:var(--series-2);stroke-width:2.2px}.sch-expansion,.sch-streamline{stroke:var(--series-1);stroke-width:1.1px}.sch-compression{stroke:var(--series-2);stroke-width:1.1px;stroke-dasharray:3 3}.sch-slip{stroke:var(--muted);stroke-width:1px;stroke-dasharray:1 3}.sch-hit{fill:none;stroke:#0000;stroke-width:12px}.sch-label{fill:var(--ink);paint-order:stroke;stroke:var(--surface);stroke-width:3px;stroke-linejoin:round;font-size:11px}.facts{flex-wrap:wrap;gap:6px;margin:8px 0 0;padding:0;font-size:.82rem;list-style:none;display:flex}.facts li{background:var(--surface-2);border-radius:8px;align-items:baseline;gap:8px;padding:4px 10px;display:flex}.fact-label{color:var(--ink-2)}.fact-value{font-variant-numeric:tabular-nums;font-weight:650}.legend{flex-wrap:wrap}.tooltip{pointer-events:none;background:var(--surface);border:1px solid var(--border);z-index:2;border-radius:8px;min-width:120px;padding:6px 10px;font-size:.8rem;position:absolute;box-shadow:0 4px 14px #0000001f}.tooltip-head{color:var(--ink-2);margin-bottom:2px}.tooltip-row{align-items:center;gap:6px;display:flex}.tooltip-row .num{font-variant-numeric:tabular-nums;margin-left:auto;font-weight:600}.table-figure{border-top:1px solid var(--grid);padding-top:10px}.table-figure summary{cursor:pointer;font-size:.9rem;font-weight:600}.data-table{border-collapse:collapse;width:100%;margin-top:8px;font-size:.84rem}.data-table th,.data-table td{border-bottom:1px solid var(--grid);text-align:right;white-space:nowrap;padding:4px 10px}.data-table th{background:var(--surface);font-weight:600;position:sticky;top:0}.data-table .num-cell{font-weight:400}.table-figure .table-scroll{max-height:340px;overflow:auto}@media screen{.print-report{display:none}}@media print{:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--page:#fff;--surface:#fff;--surface-2:#f3f3f1;--ink:#000;--ink-2:#333;--muted:#666;--grid:#ddd;--border:#ccc;--shadow:none;font-size:10.5pt}@page{margin:16mm 14mm}.shell{display:none!important}.print-report{display:block}.scenario-bar{display:none}.print-head{border-bottom:1px solid #000;margin-bottom:10px;padding-bottom:6px}.print-head h1{font-size:16pt}.print-head p{color:#333;font-size:9pt}.print-report h2{break-after:avoid;margin:16px 0 6px;font-size:12pt}.print-report h3{break-after:avoid;margin:12px 0 2px;font-size:10.5pt}.print-step,.step-block,.solver,.print-figure,.tile,.issue{break-inside:avoid}.issue-link{display:none}.print-report .step-body{padding:0 0 6px}.print-report .tiles{grid-template-columns:repeat(4,1fr)}.print-report .solver>summary{list-style:none}.print-figure{margin-bottom:12px}.tex-block{overflow:visible}}
