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/* Readable mining vocabulary and an explicit operation/evidence boundary. */
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currentColor;transform:rotate(45deg)}.record-key:after{color:var(--copper)}.boundary-plan{display:grid;grid-template-columns:1fr 1fr;gap:28px;background:var(--green);color:var(--paper);padding:22px 25px;margin:0 28px;align-items:center}.boundary-plan .small-label{color:var(--sand);font-size:9px;display:block;margin-bottom:7px}.boundary-plan h4{font-size:17px;font-weight:400}.boundary-plan p{font-size:12px;color:#ccd8ca;line-height:1.7}.boundary-work-arrow{font-size:27px;text-align:center;line-height:1;margin:15px 28px 23px}.boundary-work-arrow span{font:10px var(--mono);display:inline-block;vertical-align:middle;margin-left:9px}.boundary-stages{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;padding:0 28px}.boundary-stage{min-width:0;display:grid;grid-template-rows:1fr auto 1fr}.boundary-operation{position:relative;border:1px solid #bdcdb5;background:#eff2e8;padding:20px 17px;display:flex;flex-direction:column}.boundary-stage:not(:last-child) .boundary-operation:after{content:'→';position:absolute;right:-25px;top:46%;color:var(--green);font-size:26px}.boundary-operation .flow-number{position:static;font:30px var(--serif);color:#91a68e;display:block;margin-bottom:14px}.stage-place{display:block;font:8px var(--mono);letter-spacing:.025em;line-height:1.6;color:var(--muted);margin-bottom:12px}.boundary-operation h3{font-size:22px;font-weight:400;line-height:1.16;margin-bottom:15px}.boundary-operation>p{font-size:12px;line-height:1.7;min-height:82px}.stage-material{border-top:1px solid #c9d5bd;padding-top:15px;margin-top:20px}.stage-material b{font:8px var(--mono);text-transform:uppercase;display:block;color:var(--muted);margin-bottom:7px}.stage-material>span{display:block;font-size:12px;font-weight:700;line-height:1.5}.boundary-operation .flow-owner{margin-top:auto;padding-top:13px;border:0;font-size:8px;line-height:1.7;padding-bottom:0}.stage-material+.flow-owner{margin-top:18px}.record-connector{font:9px var(--mono);color:#94582e;padding:11px 0;display:flex;align-items:center;gap:9px}.record-connector span{font:22px var(--sans);line-height:1;display:inline-block;border-left:1px dotted var(--copper);padding-left:0}.stage-evidence{border-top:2px dotted #b58b62;background:#f8f1e5;padding:18px 16px}.stage-evidence h4{font-size:13px;margin-bottom:15px;line-height:1.5}.stage-evidence dl{margin:0}.stage-evidence dl>div+div{margin-top:18px}.stage-evidence dt{font-size:11px;font-weight:700;margin-bottom:5px}.stage-evidence dd{font-size:12px;line-height:1.7;margin:0;color:#6b6b5b}.boundary-return{border-top:2px dotted #b58b62;background:#f1e6d2;margin:26px 28px 25px;padding:22px 24px}.boundary-return>.small-label{font-size:9px;color:#805335}.boundary-return>div{display:grid;grid-template-columns:1fr auto 1.25fr auto 1fr;align-items:center;gap:18px;margin:16px 0}.boundary-return h4{font-size:14px;line-height:1.5}.boundary-return>div>span{color:var(--copper);font-size:22px}.boundary-return>p{font-size:12px;color:#636452;max-width:900px;line-height:1.8}.measurement-explainer{display:grid;grid-template-columns:1fr 1.1fr;gap:50px;margin-top:30px;padding:30px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.measurement-copy>.small-label{color:var(--copper);font-size:9px}.measurement-copy h3{font-size:24px;line-height:1.3;font-weight:400;margin:12px 0 18px}.measurement-copy>p{font-size:13px;color:var(--muted);margin:10px 0}.measurement-copy>p>b{color:var(--green)}.measurement-copy>.text-link{display:inline-block;margin-top:14px}.mass-example{background:#eeeede;padding:23px;align-self:center}.mass-example-heading{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:20px}.mass-example-heading h4{font-size:14px}.mass-example-heading .demo-label{font-size:8px;white-space:nowrap}.mass-bar{display:flex;width:100%;height:47px;font:11px var(--mono);font-weight:700}.mass-solids{width:90%;display:flex;align-items:center;padding-left:16px;background:var(--green);color:var(--paper)}.mass-water{width:10%;display:flex;align-items:center;justify-content:center;background:#95b8c0;color:#173c44}.mass-bar-legend{display:flex;justify-content:space-between;gap:10px;margin-top:9px;font-size:10px}.mass-bar-legend span{display:flex;align-items:center;gap:6px}.mass-bar-legend i{display:block;width:7px;height:7px;background:var(--green)}.mass-bar-legend span+span i{background:#95b8c0}.mass-example .mass-equation{font:14px var(--mono);margin:22px 0 16px;line-height:1.8}.mass-example>p{font-size:12px;color:var(--muted);line-height:1.8}.mass-example>small{font-size:10px;line-height:1.7;display:block;margin-top:12px;color:var(--muted)}.glossary-section{border-top:1px solid var(--line)}.glossary-essentials{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);background:#eeeee3;margin-bottom:30px}.glossary-essentials article{padding:24px 27px;border-right:1px solid var(--line)}.glossary-essentials article:last-child{border-right:0}.glossary-essentials span{font:9px var(--mono);letter-spacing:.05em;color:var(--copper)}.glossary-essentials h3{font:30px var(--serif);margin:11px 0 12px}.glossary-essentials p{font-size:13px;color:var(--muted)}.glossary-search{display:grid;grid-template-columns:95px 1fr auto;gap:20px;align-items:center;margin:30px 0}.glossary-search label{font-size:13px;font-weight:700}.glossary-search>div{position:relative;display:flex;align-items:center}.glossary-search input{width:100%;min-width:0;padding:14px 70px 14px 16px;color:var(--ink);background:var(--white);border:1px solid #bac8b3;border-radius:0;font-size:14px}.glossary-search button{position:absolute;right:12px;border:0;background:var(--white);font-size:11px;border-bottom:1px solid var(--ink);padding:0}.glossary-search>span{font:10px var(--mono);color:var(--muted);min-width:162px}.glossary-group{border-top:1px solid #bdcbb7}.glossary-group:last-child{border-bottom:1px solid #bdcbb7}.glossary-group>summary{display:flex;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;list-style:none;padding:22px 0;font-size:17px;line-height:1.5}.glossary-group>summary::-webkit-details-marker{display:none}.glossary-group>summary>span:last-child{font:10px var(--mono);white-space:nowrap;color:var(--muted)}.glossary-group>summary b{font-size:20px;font-weight:400;display:inline-block;margin-left:14px}.glossary-group[open]>summary b{transform:rotate(45deg)}.glossary-entries{display:grid;grid-template-columns:1fr 1fr;gap:0 35px;padding-bottom:20px}.glossary-entry{padding:22px 0;border-top:1px solid var(--line);scroll-margin-top:115px;min-width:0}.glossary-entry:target{background:#ebe4cf;outline:10px solid #ebe4cf}.glossary-entry h4{font-size:18px;font-weight:400;margin-bottom:10px}.term-definition{font-size:14px;line-height:1.75}.term-note{font-size:12px;line-height:1.75;color:var(--muted);margin-top:12px}.term-source,.term-usage{display:block;font:10px var(--mono);line-height:1.7;color:#8e542d;margin-top:13px;overflow-wrap:anywhere}.term-source:hover{text-decoration:underline}.term-usage{color:var(--muted)}.term-empty{padding:25px;background:#efe5d4;margin-bottom:20px}.glossary-basis{margin-top:30px;max-width:950px}.glossary-basis p{font-size:11px;color:var(--muted);line-height:1.8}.glossary-basis p+p{margin-top:9px}.term-dialog{width:min(540px,calc(100% - 32px));max-height:calc(100dvh - 48px);overflow:auto;padding:27px 30px;border:1px solid #98ab94;background:var(--paper);color:var(--ink);box-shadow:0 20px 90px #102d2866}.term-dialog::backdrop{background:#0d2d27b8;backdrop-filter:blur(3px)}.term-dialog-top{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:26px}.term-dialog-top .small-label{font-size:9px;color:var(--copper)}.term-dialog-top button{width:40px;height:40px;padding:0;border:1px solid var(--line);background:transparent;font-size:24px;line-height:1}.term-dialog h3{font:32px var(--serif);line-height:1.2;margin-bottom:20px}.term-dialog #term-dialog-definition{font-size:16px;line-height:1.7}.term-dialog #term-dialog-note{font-size:13px;line-height:1.8;color:var(--muted);background:#e9ebde;padding:17px;margin-top:20px}.term-dialog>.term-source{margin-top:19px}.term-dialog>.text-link{display:inline-block;margin-top:25px;font-size:12px}.glossary-entry[hidden],.glossary-group[hidden],[hidden]{display:none!important}
@media(max-width:1150px){.boundary-stages{gap:22px;padding:0 22px}.boundary-operation{padding:17px 12px}.boundary-stage:not(:last-child) .boundary-operation:after{right:-21px;font-size:22px}.boundary-operation h3{font-size:20px}.stage-evidence{padding:16px 12px}.measurement-explainer{gap:30px}}
@media(max-width:950px){.boundary-plan{grid-template-columns:1fr;gap:12px}.boundary-stages{gap:18px}.boundary-stage:not(:last-child) .boundary-operation:after{right:-18px;font-size:20px}.boundary-operation h3{font-size:19px}.stage-place{font-size:7px}.boundary-operation>p,.stage-material>span,.stage-evidence dd{font-size:11px}.stage-evidence h4{font-size:12px}.stage-evidence dt{font-size:10px}.record-connector{font-size:7px;gap:5px}.boundary-return>div{gap:10px}.boundary-return h4{font-size:12px}.measurement-explainer{grid-template-columns:1fr 1fr}.mass-example{padding:18px}.mass-example-heading{display:block}.mass-example-heading .demo-label{display:inline-block;margin-top:10px}.glossary-search{grid-template-columns:85px 1fr}.glossary-search>span{grid-column:2}.glossary-entries{gap:0 28px}}
@media(max-width:680px){.site-header nav{font-size:10px;gap:7px}.reading-help{font-size:12px}.boundary-intro{padding:22px 20px}.boundary-intro h3{font-size:24px}.boundary-intro>p{font-size:13px}.boundary-legend{display:grid;gap:11px;font-size:10px}.boundary-plan{margin:0 20px;padding:20px;gap:13px}.boundary-plan h4{font-size:16px}.boundary-plan p{font-size:12px}.boundary-work-arrow{margin:17px 18px 24px;font-size:24px}.boundary-work-arrow span{font-size:8px;margin-left:4px}.boundary-stages{grid-template-columns:1fr;padding:0 20px;gap:40px}.boundary-stage{display:block;position:relative}.boundary-operation{padding:20px}.boundary-operation .flow-number{position:absolute;right:20px;top:18px;font-size:31px}.stage-place{font-size:9px;padding-right:35px;margin-bottom:14px}.boundary-operation h3{font-size:26px;margin-bottom:12px}.boundary-operation h3 br{display:none}.boundary-operation>p{font-size:13px;min-height:0;max-width:350px}.stage-material{margin-top:16px;padding-top:13px}.stage-material b{font-size:9px}.stage-material>span{font-size:13px}.boundary-operation .flow-owner{font-size:9px;margin-top:14px;padding-top:0}.boundary-stage:not(:last-child) .boundary-operation:after{display:none}.boundary-stage:not(:last-child):after{content:'↓ Next material stage';position:absolute;bottom:-29px;left:0;font:10px var(--mono);font-weight:700;color:var(--green)}.record-connector{font-size:9px;padding:12px 0}.stage-evidence{padding:17px 20px}.stage-evidence h4{font-size:14px;margin-bottom:12px}.stage-evidence dt{font-size:12px}.stage-evidence dd{font-size:12px}.stage-evidence dl>div+div{margin-top:14px}.boundary-return{margin:25px 20px 22px;padding:20px}.boundary-return>.small-label{font-size:9px;line-height:1.8;display:block}.boundary-return>div{grid-template-columns:1fr;gap:6px}.boundary-return>div>span{font-size:18px;line-height:1;transform:rotate(90deg);width:18px;text-align:center}.boundary-return h4{font-size:14px}.boundary-return>p{font-size:12px}.measurement-explainer{grid-template-columns:1fr;gap:25px;margin-top:26px;padding:26px 0}.measurement-copy h3{font-size:25px}.measurement-copy>p{font-size:13px}.mass-example{padding:21px}.mass-example .mass-equation{font-size:13px}.mass-bar{font-size:10px}.mass-water span{font-size:9px;white-space:nowrap}.glossary-essentials{grid-template-columns:1fr}.glossary-essentials article{padding:21px 23px;border-right:0;border-bottom:1px solid var(--line)}.glossary-essentials article:last-child{border-bottom:0}.glossary-essentials h3{font-size:29px;margin:8px 0}.glossary-search{grid-template-columns:1fr;gap:10px;margin:25px 0}.glossary-search>span{grid-column:auto;font-size:10px}.glossary-search input{font-size:12px}.glossary-group>summary{font-size:15px;gap:10px;padding:19px 0}.glossary-group>summary>span:last-child{font-size:9px}.glossary-group>summary b{margin-left:8px;font-size:18px}.glossary-entries{grid-template-columns:1fr}.glossary-entry{scroll-margin-top:130px;padding:20px 0}.glossary-entry h4{font-size:19px}.term-dialog{padding:20px 23px}.term-dialog h3{font-size:29px}.term-dialog #term-dialog-definition{font-size:15px}.term-dialog-top{margin-bottom:21px}.term-dialog-top button{min-width:40px}.glossary-basis p{font-size:11px}}
@media print{.reading-help,.glossary-search,.term-dialog{display:none!important}.term-link{border:0}.boundary-stages{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;padding:0 18px}.boundary-stage{display:grid;grid-template-rows:auto auto 1fr}.boundary-operation{padding:12px}.boundary-operation .flow-number{position:static;font-size:24px}.boundary-operation h3{font-size:16px}.boundary-operation>p,.stage-evidence dd{font-size:10px}.boundary-stage:not(:last-child):after{display:none}.boundary-stage:not(:last-child) .boundary-operation:after{display:block;right:-18px}.stage-evidence{padding:12px}.stage-place{font-size:7px}.boundary-return>div{grid-template-columns:1fr auto 1.25fr auto 1fr}.boundary-return>div>span{transform:none}.boundary-diagram{break-inside:auto}.boundary-operation,.stage-evidence,.measurement-explainer,.glossary-entry{break-inside:avoid}.boundary-plan,.stage-evidence,.boundary-return,.mass-bar{print-color-adjust:exact;-webkit-print-color-adjust:exact}.measurement-explainer{grid-template-columns:1fr 1fr}.glossary-essentials{grid-template-columns:repeat(3,1fr)}.glossary-entries{grid-template-columns:1fr 1fr}.glossary-group>summary{break-after:avoid}}

@supports(grid-template-rows:subgrid){@media(min-width:681px){.boundary-stages{grid-template-rows:auto auto auto;row-gap:0}.boundary-stage{grid-template-rows:subgrid;grid-row:span 3}}}

/* Hover and focus show the same definition next to the word without moving focus. */
.term-preview{position:fixed;z-index:60;inset:auto;max-width:calc(100vw - 24px);overflow:auto;overscroll-behavior:contain;background:var(--paper);color:var(--ink);border:1px solid #a5b49a;border-top:3px solid var(--copper);box-shadow:0 12px 40px #102d2833;padding:20px 23px;text-align:left;line-height:1.6}.term-preview-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}.term-preview-top .small-label{font-size:8px;letter-spacing:.07em;color:#8e542d}.term-preview-top button{border:0;background:transparent;color:var(--muted);width:32px;height:32px;min-width:32px;padding:0;font-size:22px;line-height:1}.term-preview-top button:hover{background:#e2e7d9;color:var(--ink)}.term-preview h3{font:27px var(--serif);line-height:1.2;margin-bottom:14px}.term-preview #term-preview-definition{font-size:14px;line-height:1.7}.term-preview #term-preview-note{font-size:12px;line-height:1.75;color:var(--muted);background:#e8ecdf;border-left:2px solid #bac9b0;padding:12px 14px;margin-top:15px}.term-preview>.term-source{font-size:9px;margin-top:15px;line-height:1.7}.term-preview-footer{display:flex;align-items:center;justify-content:space-between;gap:15px;border-top:1px solid var(--line);padding-top:13px;margin-top:15px}.term-preview-footer .text-link{font-size:11px}.term-preview-footer>span{font:8px var(--mono);color:var(--muted)}.term-link[aria-describedby="term-preview-definition"]{background:#eadfc799;border-bottom-style:solid}.architecture-section .term-link[aria-describedby="term-preview-definition"]{background:#d3e4b32b}
@media print{.term-preview{display:none!important}}