.iommu-lab{padding-block:40px 80px}.iommu-lab h1{font-size:clamp(42px,6vw,76px);font-weight:600}.iommu-lab h2{font-size:26px;font-weight:600;letter-spacing:-.025em;line-height:1.3}.iommu-lab h3{font-size:20px;letter-spacing:-.02em;line-height:1.4}.model-scope{max-width:1000px;color:var(--muted)}.sim-panel{margin:28px 0;padding:28px;border:1px solid var(--line);border-radius:18px;background:var(--surface)}.sim-panel>h2,.panel-heading{margin-bottom:18px}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.local-badge{font-size:14px;color:var(--accent)}.sim-panel p{max-width:1000px}.sim-fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(195px,1fr));gap:16px;margin:20px 0;align-items:end}.sim-fields label{font-size:14px;display:flex;flex-direction:column;min-width:0}.sim-fields input,.sim-fields select{font:16px/1.5 ui-monospace,Consolas,monospace;background:var(--bg);color:var(--ink);padding:12px;width:100%;min-width:0;border:1px solid var(--line);border-radius:8px}.sim-fields select{font-family:inherit;font-size:14px}.sim-panel button{font:inherit;font-size:14px;line-height:1.4;padding:12px 16px;min-height:44px;border-radius:9px;border:1px solid var(--line);background:var(--bg);color:var(--ink)}.sim-panel .button{margin:0;background:var(--accent);color:var(--button-ink)}.preset-actions,.trace-controls{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.preset-actions{margin-block:20px}.sim-panel button:disabled{opacity:.45;cursor:default}.root-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.root-card{padding:20px;background:var(--bg);border:1px solid var(--line);border-radius:12px;min-width:0}.root-card h3{margin-bottom:20px}.root-card dl{margin:0;display:grid;grid-template-columns:1fr 1.15fr;gap:12px;font-size:14px}.root-card dt{color:var(--muted)}.root-card dd{margin:0;font-family:ui-monospace,Consolas,monospace;overflow-wrap:anywhere}.pointer-node{border:1px solid var(--accent);padding:14px;border-radius:9px;font-size:14px}.pointer-node code,.pointer-node strong{display:block;color:var(--accent);overflow-wrap:anywhere}.pointer-link{font-size:14px;color:var(--muted);margin:14px 0}.root-card .gcr3-slot{display:block;width:100%;margin:8px 0;text-align:left;overflow-wrap:anywhere}.gcr3-slot[aria-pressed=true]{border-color:var(--accent);background:var(--soft)}.host-ladder{padding-left:24px;font:14px/1.6 ui-monospace,Consolas,monospace}.host-ladder li{padding:8px;border-bottom:1px solid var(--line)}.root-card>p:last-child{font-size:14px;color:var(--muted);margin:20px 0 0}.bit-diagram{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:2px;margin-top:24px}.bit-cell{padding:14px;background:var(--bg);border:1px solid var(--line);display:flex;flex-direction:column;font-size:14px}.bit-cell small{color:var(--muted);font-size:12px}.bit-cell strong{font:22px/2 ui-monospace,Consolas,monospace}.bit-cell code{font-size:12px}.bit-offset{background:var(--soft);color:var(--accent)}.result-strip{padding:18px;margin-top:20px;border-left:3px solid var(--accent);background:var(--bg);font:16px/1.7 ui-monospace,Consolas,monospace;overflow-wrap:anywhere}.is-fault{border-color:#e27078!important}.walk-stages{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}.walk-stages button[aria-current=step]{background:var(--soft);border-color:var(--accent);color:var(--accent)}.active-stage{padding:22px;border:1px solid var(--line);border-radius:12px;background:var(--bg);margin-bottom:24px}.active-stage h3{margin-bottom:14px}.trace-table-wrap{overflow-x:auto;margin:16px 0}.trace-table-wrap table{width:100%;border-collapse:collapse;font:13px/1.6 ui-monospace,Consolas,monospace;white-space:nowrap}.trace-table-wrap th{text-align:left;color:var(--muted);font-size:13px}.trace-table-wrap td,.trace-table-wrap th{padding:12px;border-bottom:1px solid var(--line)}.fault-row{background:var(--soft);font-weight:700}.interrupt-path{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:24px 0;font-size:14px}.interrupt-path>span:not([aria-hidden]){padding:18px;background:var(--bg);border:1px solid var(--line);border-radius:9px}.scope-details summary,.sim-panel>details>summary{font-weight:600;color:var(--accent);list-style:revert;cursor:pointer}.scope-details[open]>summary{margin-bottom:22px}.scope-details a{text-decoration:underline}.playground-link{padding:24px;margin:32px 0;border:1px solid var(--accent);background:var(--surface);border-radius:14px}.playground-link h2{font-size:30px;line-height:1.3;margin-bottom:18px}@media(max-width:950px){.root-grid{grid-template-columns:1fr}.root-card dl{grid-template-columns:1fr 1fr}}@media(max-width:600px){.sim-panel{padding:18px}.sim-fields{grid-template-columns:1fr}.active-stage{padding:14px}.trace-table-wrap td,.trace-table-wrap th{padding:10px}.root-card{padding:16px}}
.address-association{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:24px}.address-association h3,.address-association>p{grid-column:1/-1}.address-association>div{padding:16px;border:1px solid var(--line);border-radius:10px;background:var(--bg);min-width:0}.address-association span{display:block;color:var(--muted);font-size:14px}.address-association code{display:block;color:var(--accent);overflow-wrap:anywhere;font-size:16px;margin-top:10px}.code-sync-controls{padding:18px;margin-block:20px;background:var(--bg);border:1px solid var(--line);border-radius:10px}.code-sync-controls label{display:flex;gap:10px;align-items:center;margin:0 0 12px}.code-sync-controls button{background:var(--surface);color:var(--ink);padding:10px 16px;border:1px solid var(--line);border-radius:8px;font:inherit}.code-sync-controls p{font-size:14px;color:var(--muted);margin:12px 0 0}#gcr3-tree{border-left:2px solid var(--accent);padding-left:12px;margin-top:20px}#pasid-bits-diagram .bit-cell{border-top:2px solid var(--second)}@media(max-width:800px){.address-association{grid-template-columns:1fr 1fr}}@media(max-width:480px){.address-association{grid-template-columns:1fr}}
/* Progressive disclosure keeps the first read short; bit and memory detail is opt-in. */
.root-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.dte-card{grid-column:1/-1}.dte-card dl{grid-template-columns:minmax(170px,1fr) 2fr;max-width:900px}.root-card[hidden]{display:none}.path-comparison{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:20px 0}.path-comparison article{padding:18px;border:1px solid var(--line);border-radius:12px;min-width:0}.path-comparison code{font-size:13px;overflow-wrap:anywhere}.path-map{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:24px 0}.path-map strong{padding:14px;border:1px solid var(--accent);border-radius:10px;font-size:14px}.path-arrow{color:var(--accent)}.lab-jumps{display:flex;gap:18px;flex-wrap:wrap;margin-top:24px;font-size:14px}.lab-jumps a{text-decoration:underline}#dte-raw{padding:18px;background:var(--surface);border-radius:10px;margin:24px 0}#dte-raw p{display:flex;gap:12px;flex-wrap:wrap;font-size:14px}#dte-raw code{font:16px/1.6 ui-monospace,monospace;color:var(--accent)}.entry-bit-fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(115px,1fr));gap:6px;margin:20px 0}.entry-bit-fields>div{display:flex;flex-direction:column;gap:6px;padding:12px;border:1px solid var(--line);border-radius:8px;background:var(--surface);overflow-wrap:anywhere}.entry-bit-fields small{color:var(--muted);font-size:12px}.entry-bit-fields strong{font-size:13px}.entry-bit-fields code{font-size:13px;color:var(--accent)}.entry-inspector:not(:empty){white-space:normal;padding:20px;border:1px solid var(--accent);border-radius:12px;margin-top:20px}.entry-inspector dl{display:grid;grid-template-columns:minmax(140px,1fr) 2fr;gap:12px;font-size:14px}.entry-inspector dt{color:var(--muted)}.entry-inspector dd{margin:0;overflow-wrap:anywhere;font-family:ui-monospace,monospace}.entry-inspector h4{overflow-wrap:anywhere}.memory-window{overflow-x:auto;background:var(--bg);padding:16px;font:13px/1.8 ui-monospace,monospace}.memory-bytes{font-family:ui-monospace,monospace;overflow-wrap:anywhere}.trace-table-wrap td button{display:block;margin-top:8px;font-size:12px;padding:8px}.sim-panel :is(h2,h3){scroll-margin-top:24px}.sim-panel input:disabled{opacity:.5}@media(max-width:800px){.path-comparison,.root-grid{grid-template-columns:1fr}.entry-inspector dl,.dte-card dl{grid-template-columns:1fr}.entry-inspector dd{margin-bottom:8px}}
/* NIC DMA workbench: visible progress, byte-level evidence, no decorative motion. */
.sim-fields output{display:block;background:var(--bg);border:1px solid var(--line);padding:12px;border-radius:8px;font:16px/1.5 ui-monospace,monospace}.sim-fields small{font-size:14px;line-height:1.5;color:var(--muted)}.fault-explanation:not(:empty){border-left:4px solid #e27078;background:var(--bg);padding:20px;margin-block:20px}.fault-explanation code{display:block;overflow-wrap:anywhere;margin-block:16px}.dma-panel{border-color:var(--accent)}.dma-route{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:24px 0}.dma-hop{padding:18px;border:1px solid var(--line);border-radius:10px;font-size:16px}.dma-hop[data-state=active]{border:2px solid var(--accent);background:var(--soft);font-weight:700}.dma-hop[data-state=fault]{border:2px solid #e27078;background:var(--soft)}.dma-memories{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.dma-memories article{padding:18px;min-width:0;border:1px solid var(--line);border-radius:12px;background:var(--bg)}.byte-grid{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:5px;margin-top:16px}.byte-grid span{padding:7px 0;text-align:center;font:14px/1.5 ui-monospace,monospace;border:1px solid var(--line);border-radius:4px}.byte-grid .byte-changed{background:var(--accent);color:var(--button-ink);font-weight:700}.byte-grid .byte-copied{border:2px solid var(--accent)}#dma-progress{width:100%;height:14px;accent-color:var(--accent);margin-top:10px}#dma-status{padding:16px;background:var(--bg);border-left:3px solid var(--accent)}.dma-events{padding-left:24px}.dma-events li{padding:6px 0;font-size:14px;line-height:1.6}.event-buffer{padding:20px;margin:24px 0;background:var(--bg);border:1px solid var(--line);border-radius:12px}.event-slots{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:16px}.event-slots span{border:1px solid var(--line);padding:12px;white-space:pre-line;font:14px/1.6 ui-monospace,monospace}.event-slots .event-written{border-color:#e27078}#event-record dl{display:grid;grid-template-columns:180px 1fr;gap:12px;font-size:14px}#event-record dd{margin:0;overflow-wrap:anywhere}.event-word{display:inline-block;margin:0 16px 12px 0;font:14px/1.6 ui-monospace,monospace}.dte-reference td:last-child{white-space:normal;min-width:210px;font-family:inherit}.dte-reference th,.dte-reference td{font-size:14px}#dte-raw details{padding:14px 0;border-bottom:1px solid var(--line)}#dte-raw summary{display:flex;gap:16px;flex-wrap:wrap;cursor:pointer;font-size:14px;list-style:revert}#dte-raw summary:before{content:'＋';color:var(--accent)}#dte-raw details[open]>summary:before{content:'−'}.dma-hop,.event-slots span{overflow-wrap:anywhere}.sim-panel button:focus-visible,.sim-panel summary:focus-visible{outline:3px solid var(--accent);outline-offset:3px}@media(max-width:1000px){.dma-memories{grid-template-columns:1fr}.byte-grid{grid-template-columns:repeat(8,minmax(0,1fr))}}@media(max-width:600px){.dma-route,.event-slots{grid-template-columns:repeat(2,minmax(0,1fr))}#event-record dl{grid-template-columns:1fr}.dma-memories article,.event-buffer{padding:14px}.sim-fields label{min-width:0}.sim-panel h2{font-size:24px}}
#dte-raw code{overflow-wrap:anywhere}.dma-panel :is(p,code,output){overflow-wrap:anywhere}.trace-table-wrap button{white-space:normal}.compiler-controls label{min-width:0;max-width:100%}.event-buffer>p{font-size:14px;line-height:1.6}#request-pasid-help{max-width:32ch}.fault-explanation:empty{display:none}

/* Keep orientation and applied/pending state visible during long table walks. */
.lab-toolbar{position:sticky;top:0;z-index:5;padding:12px 18px;background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-block:24px;box-shadow:0 6px 20px #0002}
.lab-toolbar nav{display:flex;flex-wrap:wrap;gap:6px 18px}.lab-toolbar a{font-size:14px;padding:6px 0;text-decoration:underline;text-underline-offset:4px}.lab-toolbar p{font-size:13px;line-height:1.5;margin:8px 0 0;overflow-wrap:anywhere}.lab-toolbar #pending-state{color:var(--accent)}
.sim-panel :is(h2,h3){scroll-margin-top:160px}.pcie-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-block:24px}.pcie-groups fieldset{min-width:0;margin:0;padding:20px;border:1px solid var(--line);border-radius:12px}.pcie-groups legend{padding:0 8px;font-weight:600}.pcie-groups label{display:flex;align-items:center;gap:12px;min-height:44px;font-size:14px;line-height:1.5;cursor:pointer}.pcie-groups input[type=checkbox]{flex:0 0 18px;width:18px;height:18px;accent-color:var(--accent)}.pcie-groups input[type=number]{width:100%;max-width:160px;min-height:44px;font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:8px 12px}.pcie-groups p{font-size:14px;color:var(--muted);line-height:1.6}.register-summary{padding:20px;background:var(--bg);border:1px solid var(--line);border-radius:12px;font:14px/1.9 ui-monospace,monospace;white-space:pre-wrap;overflow-wrap:anywhere}#pci-registers>details{padding-block:16px;border-bottom:1px solid var(--line)}#pci-registers summary{cursor:pointer}.ats-probe{padding-top:20px;margin-top:24px;border-top:1px solid var(--line)}.iommu-lab :is(input,select,a,summary):focus-visible{outline:3px solid var(--accent);outline-offset:3px}
@media(max-width:800px){.pcie-groups{grid-template-columns:1fr}.lab-toolbar{position:static}.sim-panel :is(h2,h3){scroll-margin-top:24px}}
@media(prefers-reduced-motion:reduce){.iommu-lab *{scroll-behavior:auto!important}}

/* Screenshot review: aligned control rows, wrapped capacity text, restrained density. */
.iommu-lab h1{font-size:clamp(32px,4vw,48px);margin-block:14px}.iommu-lab .note-deck{font-size:20px}.sim-fields{align-items:start;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 24px}.sim-fields .field-name{min-height:42px;display:flex;align-items:flex-end;line-height:1.5}.sim-fields :is(input,select){min-height:48px;font-size:15px;padding:10px 12px}.sim-fields label{gap:8px}.sim-fields output{white-space:normal;overflow-wrap:anywhere;line-height:1.65;min-height:72px;font-size:15px}.sim-fields>button[type=submit]{align-self:end}.sim-fields small{max-width:none;line-height:1.55}.sim-panel{padding:24px;margin-block:20px}.sim-panel p{line-height:1.65}#request-pasid-help{max-width:none}.panel-heading{align-items:baseline;margin-bottom:12px}.dma-panel>.panel-heading+p{margin-top:0}.address-association{grid-template-columns:repeat(2,minmax(0,1fr))}.lab-toolbar{position:static;box-shadow:none}.sim-panel :is(h2,h3){scroll-margin-top:24px}.register-summary{font-size:14px}.sim-fields label:has(output){grid-column:span 1}.field-name{overflow-wrap:anywhere}
@media(min-width:1150px){#mapping-form{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:650px){.sim-fields,#mapping-form,.address-association{grid-template-columns:1fr}.sim-fields .field-name{min-height:0}.sim-panel{padding:18px}.preset-actions{gap:8px}.preset-actions button{flex:1 1 160px}.local-badge{font-size:13px}}

/* Actions look actionable; noninteractive state stays flat. */
.iommu-lab :is(.sim-panel,.code-lab,.code-sync-controls) button:not(:disabled){cursor:pointer;transition:background-color .15s,box-shadow .15s}
.iommu-lab :is(.sim-panel,.code-lab,.code-sync-controls) button:not(:disabled):hover{background:var(--accent);color:var(--button-ink);box-shadow:0 3px 0 var(--line)}
.iommu-lab :is(.sim-panel,.code-lab,.code-sync-controls) button:not(:disabled):active{box-shadow:none}
.iommu-lab .sim-panel button.button:not(:disabled){background:var(--accent);color:var(--button-ink)}
.iommu-lab button:disabled{opacity:1;background:var(--bg);color:var(--muted);border:1px dashed var(--line);box-shadow:none;cursor:not-allowed;font-weight:400}
.iommu-lab .sim-panel summary{cursor:pointer;text-decoration:underline;text-underline-offset:4px;padding-block:8px}.iommu-lab .sim-panel summary:hover{color:var(--accent)}
.dma-hop,.pointer-node,.event-slots span{cursor:default;border-radius:3px;box-shadow:none}.dma-hop{border-width:0 0 2px;background:var(--bg)}.dma-hop[data-state=active]{border-width:0 0 3px}.dma-hop[data-state=fault]{border-width:0 0 3px}
.dma-examples{border-top:1px solid var(--line);padding-top:20px;margin-top:24px}.dma-example-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.dma-example-grid article{border-left:3px solid var(--line);padding-left:18px}.dma-example-grid h4{font-size:18px;margin:8px 0}.dma-example-grid p{font-size:15px}.dma-preview{background:var(--bg);padding:20px;margin-block:24px;border-left:3px solid var(--accent)}.dma-preview h3{font-size:18px;margin-top:0}.dma-preview ol{padding-left:24px}.dma-preview li{padding:8px 0;line-height:1.6}.segment-rejected{font-weight:600}#dma-control-help{min-height:24px}
@media(max-width:650px){.dma-example-grid{grid-template-columns:1fr}.dma-example-grid button{width:100%}}
@media(prefers-reduced-motion:reduce){.iommu-lab button{transition:none!important}}
/* Apply the same affordances to every static and dynamically generated control. */
.iommu-lab :is(.sim-panel,.code-lab) button:disabled{opacity:1;cursor:not-allowed;border-style:dashed;color:var(--muted);background:var(--bg)}
.iommu-lab button:is([aria-pressed=true],[aria-current=step]):not(:disabled){background:var(--accent);color:var(--button-ink);border-color:var(--accent);box-shadow:inset 0 0 0 2px var(--button-ink)}
.iommu-lab button:is([aria-pressed=true],[aria-current=step]):after{content:' · Selected';font-size:12px}
.iommu-lab summary{min-height:44px;line-height:1.5;border-radius:6px}.iommu-lab summary:after{content:' · Expand';font-size:13px;font-weight:400;color:var(--accent)}.iommu-lab details[open]>summary:after{content:' · Collapse'}
#dte-raw summary:before{content:none}.iommu-lab select,.iommu-lab input[type=checkbox]{cursor:pointer}.iommu-lab :is(select,input):disabled{cursor:not-allowed}
.iommu-lab a{text-decoration:underline;text-underline-offset:4px}.iommu-lab a:hover{text-decoration-thickness:2px}.iommu-lab .code-actions a[download]{display:inline-flex;align-items:center;min-height:44px;padding:10px 16px;border:1.5px solid var(--accent);border-radius:9px;background:var(--soft)}
.iommu-lab :is(.bit-cell,.pointer-node,.address-association>div,.event-slots span,.interrupt-path>span){box-shadow:none;border-color:var(--line);cursor:default}.iommu-lab .bit-cell{border-width:0 0 1px}.iommu-lab .pointer-node{border-left:3px solid var(--line)}
/* Portfolio reading hierarchy: one heading face, consistent rhythm, useful line lengths. */
.iommu-lab{font-size:1rem;line-height:1.65}.iommu-lab :is(h1,h2,h3,h4){font-family:Manrope,'Segoe UI',sans-serif;letter-spacing:-.02em;line-height:1.3;font-weight:600}.iommu-lab h1{max-width:24ch;font-size:clamp(2rem,3.5vw,3rem)}.iommu-lab h2{font-size:1.5rem}.iommu-lab h3{font-size:1.125rem}.iommu-lab h4{font-size:1rem}.iommu-lab .note-deck{margin-block:16px;font-size:1.2rem;max-width:65ch}.portfolio-context,.model-scope{max-width:85ch;font-size:1rem}.reader-guide{padding:16px 20px;border:1px solid var(--line);border-radius:10px;margin-block:20px}.reader-guide summary{cursor:pointer;font-weight:600;text-decoration:underline;text-underline-offset:4px}.reader-guide[open]>summary{margin-bottom:16px}.glossary{display:grid;grid-template-columns:150px 1fr;gap:12px 20px;margin:16px 0}.glossary dt{font-weight:600}.glossary dd{margin:0;max-width:75ch}.sim-panel>p,.dma-preview p,.reader-guide>p{max-width:85ch}.trace-table-wrap:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.iommu-lab .sim-fields{row-gap:24px}.iommu-lab .sim-fields label{font-size:.9375rem}.iommu-lab .sim-fields .field-name{line-height:1.5;min-height:3em}.iommu-lab .sim-fields small{font-size:.875rem}.iommu-lab .root-card h3{margin-bottom:16px}.iommu-lab :is(input,select,output,button){max-width:100%}.iommu-lab button{overflow-wrap:anywhere}.iommu-lab .code-top h2{font-size:1.5rem}
@media(max-width:650px){.glossary{grid-template-columns:1fr;gap:6px}.glossary dd{margin-bottom:12px}.iommu-lab .sim-fields .field-name{min-height:0}.reader-guide{padding:16px}.iommu-lab .lab-toolbar nav{gap:8px 16px}}
/* fragile: Chromium 141 (Playwright 1.56.1) hidden="until-found": without this exception a closed chapter stops opening for find-in-page and fragment links. See chapters.css. */
.iommu-lab [hidden]:not([hidden="until-found"]){display:none!important}
.section-jump{position:fixed;right:20px;bottom:16px;z-index:15;display:flex;align-items:center;gap:12px;background:var(--surface);color:var(--ink);border:1px solid var(--accent);border-radius:12px;padding:10px 14px;box-shadow:0 4px 24px var(--shadow)}.section-jump label{font-size:14px;font-weight:600;white-space:nowrap}.section-jump select{font:inherit;font-size:14px;background:var(--bg);color:var(--ink);border:1px solid var(--line);border-radius:6px;min-height:44px;min-width:0;max-width:220px;padding:8px}.section-jump a{font-size:14px;padding:8px}.iommu-lab{padding-bottom:130px}.notes-body footer{padding-bottom:110px}
@media(max-width:600px){.section-jump{left:16px;right:16px;gap:8px;padding:8px}.section-jump label{font-size:13px}.section-jump select{flex:1;width:100%;max-width:none}.section-jump a{font-size:13px}}
/* Screenshot corrections: separate form actions, explanations, results and disclosures. */
#mapping-form .mapping-actions{grid-column:1/-1;display:flex;justify-content:flex-start;padding-top:16px;border-top:1px solid var(--line)}#mapping-form .mapping-actions button{width:auto;min-width:220px;margin:0}.page-layout-note{font-family:inherit;font-size:.9375rem;line-height:1.6;color:var(--muted);margin:16px 0 8px;padding:0;background:none;border:0}.mapping-explanation{margin:0 0 20px}.mapping-explanation[open]>summary{margin-bottom:12px}.mapping-explanation p{font-family:inherit;font-size:.9375rem;max-width:80ch}
.ats-probe h3{margin-bottom:14px}.ats-probe>button{margin:0}#ats-result{display:block;margin:18px 0 0;padding:14px 16px;background:var(--bg);border-left:3px solid var(--accent);font: .9375rem/1.7 'Segoe UI',Arial,sans-serif;overflow-wrap:anywhere;max-width:85ch}.dma-inspect-action{display:flex;flex-direction:column;align-items:flex-start;gap:12px;margin:20px 0 24px}.dma-inspect-action button{margin:0}.dma-inspect-action p{margin:0;font-size:.875rem;max-width:75ch}.dma-inspect-action+.walk-caption{margin-top:0;padding-top:16px;border-top:1px solid var(--line)}
#dte-raw{padding:20px}#dte-raw h4{margin:0 0 16px}#dte-raw details{padding:0}#dte-raw summary{display:grid;grid-template-columns:minmax(17rem,1fr) minmax(19ch,1fr) 5.5rem;align-items:center;gap:12px;padding:16px 8px;text-decoration:none;color:var(--ink);font-size:.9375rem;border-radius:6px}#dte-raw summary code{font-size:.9375rem;line-height:1.6;color:var(--accent);white-space:nowrap}#dte-raw summary:after{justify-self:end;text-decoration:underline;text-underline-offset:4px;font-size:.875rem}#dte-raw summary:hover{background:var(--soft)}#dte-raw details[open]>summary{background:var(--soft)}#dte-raw summary:before{display:none}
@media(max-width:900px){#dte-raw summary{grid-template-columns:minmax(0,1fr) auto}#dte-raw summary>span{grid-column:1/-1}#dte-raw summary code{white-space:normal;overflow-wrap:anywhere}}
@media(max-width:600px){#mapping-form .mapping-actions button{width:100%;min-width:0}.dma-inspect-action button{width:100%}#dte-raw{padding:14px}#ats-result{padding:12px}}
/* Quiet centred contents handle; the full navigation appears only on demand. */
.section-jump{left:50%;right:auto;bottom:10px;transform:translateX(-50%);display:block;width:max-content;max-width:calc(100vw - 32px);padding:0;border:0;background:none;box-shadow:none}.section-jump>button{display:flex;align-items:center;gap:12px;min-height:44px;padding:8px 18px;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:24px;font:600 .875rem/1.5 'Segoe UI',sans-serif;cursor:pointer;box-shadow:0 2px 8px var(--shadow)}.section-jump>button:hover,.section-jump>button:focus-visible,.section-jump>button[aria-expanded=true]{border-color:var(--accent);background:var(--soft)}#contents-panel{position:absolute;bottom:100%;left:50%;transform:translateX(-50%);width:min(390px,calc(100vw - 32px));display:grid;grid-template-columns:1fr auto;align-items:center;gap:10px;padding:16px;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:0 4px 20px var(--shadow)}#contents-panel[hidden]{display:none}#contents-panel label{grid-column:1/-1;font-size:.875rem}#contents-panel select{width:100%;max-width:none}#contents-panel a{padding:10px}.iommu-lab{padding-bottom:90px}.notes-body footer{padding-bottom:90px}
@media(max-width:600px){.section-jump{left:50%;right:auto;bottom:8px;padding:0}.section-jump>button{min-height:44px}#contents-panel{padding:14px}}

/* ATS extends the existing workbench: controls first, explanations on demand. */
.ats-workflow { margin: 1.5rem 0; padding: 1.25rem; border: 1px solid var(--line); border-radius: 12px; }
.ats-workflow h3 { margin-top: 0; }
.ats-workflow .sim-fields { grid-template-columns: repeat(2,minmax(0,1fr)); }
.ats-workflow details { margin-top: 1.25rem; }
.ats-workflow table td { white-space: normal; min-width: 8rem; line-height: 1.6; }
.ats-workflow table td:last-child { min-width: 16rem; }
.ats-state { margin: 1.5rem 0; padding: 1.25rem; border: 1px solid var(--line); border-radius: 12px; }
.ats-state-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 1.25rem; }
.ats-state-grid article { min-width: 0; }
.ats-state-grid p { overflow-wrap: anywhere; white-space: pre-line; }
@media(max-width: 700px) { .ats-workflow .sim-fields, .ats-state-grid { grid-template-columns: 1fr; } .ats-workflow,.ats-state { padding: 1rem; } }

.dma-route { grid-template-columns: repeat(auto-fit,minmax(145px,1fr)); }
.ats-state[hidden] { display: none; }