:root{color-scheme:dark;--bg:#101417;--surface:#171d21;--line:#30393f;--text:#ecf0f1;--muted:#a4afb6;--accent:#5dddd7;--mono:Consolas,"Cascadia Code",monospace;--sans:"Segoe UI Variable","Segoe UI",system-ui,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 var(--sans)}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-underline-offset:5px}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:wait}img{display:block;max-width:100%;height:auto}figure,p,h1,h2,h3{margin:0}button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--accent);outline-offset:5px}::selection{color:#071817;background:var(--accent)}.wrap{width:min(100% - 80px,1440px);margin-inline:auto}.muted{color:var(--muted)}.cyan{color:var(--accent)}.green{color:#b0d789}.eyebrow{font:12px/1.6 var(--mono);letter-spacing:.12em;color:var(--accent);text-transform:uppercase}.skip-link{position:fixed;z-index:20;left:20px;top:0;padding:12px;background:var(--text);color:var(--bg);transform:translateY(-120%)}.skip-link:focus{transform:none}.site-header{border-bottom:1px solid var(--line);background:var(--bg)}.header-inner{height:80px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:18px;font-weight:600;letter-spacing:-.03em}.site-header nav{display:flex;gap:30px;font-size:14px}.site-header nav a{text-decoration:none;color:var(--muted)}.site-header nav a:last-child{color:var(--text)}.site-header nav a:hover{color:var(--accent)}
.hero{padding-top:62px}.hero-intro{display:grid;grid-template-columns:1.4fr 1fr;align-items:end;gap:60px;margin-bottom:48px}.status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent);margin-right:8px}h1{font-size:clamp(40px,4.4vw,68px);font-weight:550;line-height:1.06;letter-spacing:-.055em;margin-top:20px}h1 span{color:#a9b4bb}.hero-aside{max-width:480px;justify-self:end;padding-bottom:3px}.hero-aside p{font-size:18px;color:var(--muted);line-height:1.65}.actions{display:flex;align-items:center;flex-wrap:wrap;gap:24px;margin-top:25px}.button{display:inline-flex;gap:28px;align-items:center;justify-content:center;border:1px solid var(--accent);background:var(--accent);color:#0c2424;padding:11px 18px;border-radius:4px;font-size:14px;font-weight:650;text-decoration:none}.button:hover{background:#95eee8}.text-link{font-size:14px;text-decoration:none;border-bottom:1px solid #59666d;padding-bottom:3px}.text-link:hover{color:var(--accent);border-color:var(--accent)}.scene-picker{display:flex;gap:6px;border-bottom:1px solid var(--line)}.scene-picker button{border:0;border-bottom:2px solid transparent;background:none;padding:15px 20px;color:var(--muted);font-size:14px}.scene-picker button:hover{color:var(--text);background:#1b2428}.scene-picker button[aria-pressed=true]{color:var(--text);border-color:var(--accent);background:#1c282b}.scene-code{font:12px var(--mono);color:var(--accent);margin-right:10px}.application-stage{margin-top:20px}.application-stage>a{display:block;overflow:hidden;border:1px solid #3b464d;border-radius:7px;background:#171d21;cursor:zoom-in}.application-stage img{width:100%;max-width:1550px;margin-inline:auto}.application-stage figcaption{display:flex;justify-content:space-between;gap:20px;padding:18px 0;font-size:13px;color:var(--muted)}.application-stage figcaption a{white-space:nowrap;color:var(--text);text-decoration:none}.caption-divider{margin:0 12px;color:#50616a}.identity-line{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding:24px 0;color:var(--muted);font:12px var(--mono)}
.chapter{padding-top:110px;padding-bottom:110px;border-top:1px solid var(--line);scroll-margin-top:20px}.chapter-heading{max-width:750px;margin-bottom:52px}.chapter-heading h2{font-size:clamp(32px,3.4vw,50px);line-height:1.13;font-weight:500;letter-spacing:-.045em;margin:16px 0 22px}.chapter-heading>p:last-child:not(.eyebrow){font-size:18px;max-width:640px;color:var(--muted)}.chapter-heading.compact{max-width:610px}.inspection-layout{display:grid;grid-template-columns:.8fr 1.35fr;gap:90px;align-items:start}.journey{padding:0;margin:0 0 25px;list-style:none}.journey li{display:flex;gap:22px;padding-bottom:34px}.step-marker{font:13px var(--mono);color:var(--accent);padding-top:5px}.journey h3{font-size:20px;font-weight:550;letter-spacing:-.02em;margin-bottom:9px}.journey p{color:var(--muted);max-width:350px}.journey code{display:block;color:var(--accent);font:13px/1.7 var(--mono);margin-top:13px}.evidence{background:var(--surface);border:1px solid var(--line);border-top:2px solid var(--accent);padding:30px;min-width:0}.evidence-heading{display:flex;gap:20px;justify-content:space-between;align-items:center}.file-label{color:var(--muted);font-size:12px}.symbol-name{font:clamp(17px,1.8vw,25px)/1.5 var(--mono);overflow-wrap:anywhere;margin-top:22px;color:var(--accent)}.evidence-note{color:var(--muted);font-size:13px;margin-top:6px}.record-fields{margin:26px 0 30px;display:grid;grid-template-columns:1fr 1fr;column-gap:28px}.record-fields>div{padding:12px 0;border-top:1px solid var(--line);display:flex;gap:16px;justify-content:space-between}.record-fields dt{color:var(--muted);font-size:14px}.record-fields dd{margin:0;font:15px/1.6 var(--mono)}.raw-header{border-top:1px solid #52626b;padding:18px 0 12px;display:flex;gap:20px;justify-content:space-between;font-size:14px}.source-indicator{font-size:12px;color:var(--accent)}pre{font:14px/1.8 var(--mono);margin:0;overflow:auto;tab-size:2}.raw-example{background:#101619;padding:16px;border-left:2px solid var(--accent)}.line-number{color:#83949e}.source-footnote{font-size:12px;color:var(--muted);margin-top:15px;max-width:590px}.detail-strip{max-width:940px;margin:55px 0 0 auto}.detail-strip>a{display:block;background:#181d21;border:1px solid var(--line);cursor:zoom-in}.detail-strip img{width:100%}.detail-strip figcaption,.light-detail figcaption{display:flex;justify-content:space-between;gap:20px;color:var(--accent);font:12px/1.6 var(--mono);padding-top:13px}.detail-strip figcaption span,.light-detail figcaption span{color:var(--muted);font-family:var(--sans)}
.format-section{background:#13191d}.format-layout{display:grid;grid-template-columns:1fr 1.4fr;gap:90px}.format-picker{border-top:1px solid var(--line)}.format-picker button{width:100%;display:grid;grid-template-columns:100px 1fr 15px;align-items:center;gap:12px;text-align:left;padding:22px 16px;border:0;border-bottom:1px solid var(--line);background:transparent}.format-picker button>span:first-child{font-size:22px;letter-spacing:-.03em}.format-picker small{font-size:14px;color:var(--muted)}.format-picker button>span:last-child{color:var(--muted)}.format-picker button[aria-pressed=true]{background:#203236;box-shadow:inset 3px 0 var(--accent)}.format-picker button[aria-pressed=true]>span{color:var(--accent)}.format-picker button:hover{background:#1b282d}.format-detail{padding-top:12px;min-height:430px;min-width:0}.format-detail h3{font-size:30px;font-weight:500;line-height:1.3;letter-spacing:-.03em;margin:18px 0}.format-detail>p:not(.eyebrow){color:var(--muted)}#format-views{display:grid;grid-template-columns:1fr 1fr;gap:12px 25px;padding:0;list-style:none;margin:27px 0}#format-views li{font-size:15px;border-bottom:1px solid var(--line);padding-bottom:10px}#format-views li::before{content:'↳';color:var(--accent);margin-right:12px}.technical-note{font-size:13px;max-width:600px;margin-top:26px}
.export-layout{display:grid;grid-template-columns:1fr 1.1fr;gap:90px;align-items:center}.export-layout .chapter-heading{margin-bottom:0;min-width:0}.export-selection{display:flex;flex-direction:column;gap:10px;margin-top:28px;padding-left:18px;border-left:2px solid var(--accent)}.export-selection strong{font:17px var(--mono);overflow-wrap:anywhere}.export-selection>span:last-child{font:13px/1.8 var(--mono);color:var(--muted)}.export-output{border:1px solid var(--line);background:#0d1114;min-width:0}.export-toolbar{display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--line);flex-wrap:wrap}.export-toolbar button{background:none;border:0;padding:15px 12px;font:14px var(--mono);color:var(--muted);border-bottom:2px solid transparent}.export-toolbar button[aria-pressed=true]{color:var(--accent);border-bottom-color:var(--accent)}#copy-example{font:13px var(--sans);color:var(--text)}#export-code{min-height:305px;padding:28px;color:#c1e3d0;font-size:15px}.export-output>p{font-size:12px;color:var(--muted);padding:0 28px 22px}
.engineering{background:#141a1e}.engineering-layout{display:grid;grid-template-columns:1.8fr 1fr;align-items:center;gap:55px}.light-detail{min-width:0}.light-detail>a{display:block;border:1px solid #82929a;cursor:zoom-in}.engineering-notes h3{font-size:24px;font-weight:500;margin-bottom:14px}.engineering-notes p{color:var(--muted);margin-top:14px}.architecture{display:grid;grid-template-columns:.8fr 2fr;gap:70px;border-top:1px solid var(--line);padding-top:48px;margin-top:65px}.architecture h3{font-size:27px;font-weight:500;line-height:1.3;letter-spacing:-.03em;margin-top:13px}.architecture ol{padding:0;margin:0;list-style:none;display:grid;grid-template-columns:1fr 1fr 1fr;gap:30px;counter-reset:architecture}.architecture li{border-top:1px solid #5c707a;padding-top:17px;counter-increment:architecture}.architecture li::before{content:'0' counter(architecture);display:block;color:var(--accent);font:12px var(--mono);margin-bottom:12px}.architecture strong{display:block;font-size:16px;font-weight:550;margin-bottom:10px}.architecture li span{color:var(--muted);font-size:14px}.engineering-footnote{display:flex;flex-wrap:wrap;gap:15px 35px;margin-top:40px;font-size:12px;color:var(--muted)}.engineering-footnote strong{font-weight:500;color:#d2dadd}
.start-paths{display:grid;grid-template-columns:1fr 1fr;gap:70px}.start-paths article{border-top:1px solid #53616a;padding-top:24px}.path-label{font:13px var(--mono);color:var(--accent)}.start-paths h3{font-size:25px;font-weight:500;letter-spacing:-.025em;margin:16px 0}.start-paths p{color:var(--muted);max-width:550px}.start-paths .requirement{margin-top:20px;color:var(--text);font-size:14px}.input-reference{margin-top:45px;border-block:1px solid var(--line)}.input-reference summary{cursor:pointer;padding:18px 0;font-size:14px}.input-reference>div{display:grid;grid-template-columns:1fr 1fr;gap:50px;padding:5px 0 25px;color:var(--muted);font-size:14px}.closing{display:flex;gap:40px;align-items:center;justify-content:space-between;margin-top:70px}.closing h3{font-size:26px;font-weight:500;letter-spacing:-.02em}.closing p{color:var(--muted);font-size:14px;max-width:620px;margin-top:10px}.closing .actions{margin-top:0;flex-shrink:0}footer{display:flex;gap:30px;align-items:center;padding-block:30px;border-top:1px solid var(--line);font-size:12px}footer>a{margin-left:auto;text-decoration:none}
#image-viewer{width:96vw;max-width:none;height:94vh;max-height:94vh;padding:0;border:1px solid #5b6b74;background:var(--bg);color:var(--text)}#image-viewer::backdrop{background:#000c}.viewer-toolbar{display:flex;align-items:center;gap:20px;padding:14px 20px;border-bottom:1px solid var(--line)}.viewer-toolbar h2{font-size:16px;font-weight:500}.viewer-toolbar p{font-size:13px;color:var(--muted)}.viewer-toolbar a{margin-left:auto;font-size:14px}.viewer-toolbar button{background:var(--surface);border:1px solid var(--line);padding:6px 12px}.viewer-scroll{height:calc(100% - 70px);overflow:auto;padding:20px}#viewer-image{max-width:none;width:auto;height:auto}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:1800px){.wrap{width:min(100% - 100px,1534px)}}
@media(max-width:1100px){.wrap{width:calc(100% - 48px)}.hero-intro{gap:35px;grid-template-columns:1.2fr 1fr}.hero-aside p{font-size:16px}.scene-picker button{padding:14px 12px}.inspection-layout,.format-layout,.export-layout{gap:40px}.inspection-layout{grid-template-columns:.85fr 1.2fr}.evidence{padding:22px}.record-fields{grid-template-columns:1fr}.engineering-layout{grid-template-columns:1.5fr 1fr;gap:30px}.architecture{grid-template-columns:1fr;gap:30px}.closing{align-items:start;flex-direction:column}.scene-code{margin-right:5px}}
@media(max-width:760px){.wrap{width:calc(100% - 36px)}.header-inner{height:auto;min-height:76px;flex-wrap:wrap;padding-block:18px;gap:16px}.brand{font-size:17px}.site-header nav{gap:22px;font-size:13px;flex-wrap:wrap}.hero{padding-top:38px}.hero-intro{grid-template-columns:1fr;gap:24px;margin-bottom:32px}h1{font-size:clamp(39px,8vw,58px)}.hero-aside{justify-self:start;max-width:550px}.hero-aside .actions{margin-top:20px}.scene-picker{display:grid;grid-template-columns:1fr 1fr;gap:2px}.scene-picker button{text-align:left;font-size:13px;padding:12px 8px}.application-stage>a{overflow:auto}.application-stage img{max-width:none;width:100%;min-width:720px}.application-stage figcaption{font-size:12px;flex-direction:column;gap:8px}.identity-line{flex-wrap:wrap;justify-content:start;gap:14px 24px;font-size:12px}.chapter{padding-block:65px}.chapter-heading{margin-bottom:32px}.chapter-heading h2{font-size:36px}.chapter-heading>p:last-child:not(.eyebrow){font-size:16px}.inspection-layout,.format-layout,.export-layout,.engineering-layout,.start-paths{grid-template-columns:1fr;gap:35px}.journey p{max-width:none}.evidence{padding:20px}.evidence-heading{flex-wrap:wrap;gap:6px}.record-fields{grid-template-columns:1fr 1fr;gap:0 18px}.record-fields>div{flex-direction:column;gap:4px}.raw-example{font-size:13px}.raw-header{font-size:13px;gap:10px}.detail-strip{margin-top:32px}.detail-strip>a{overflow:auto}.detail-strip img{max-width:none;width:940px}.detail-strip figcaption,.light-detail figcaption{flex-direction:column;gap:3px}.format-picker button{padding-block:16px}.format-detail{min-height:0}.format-detail h3{font-size:27px}#format-views{gap:12px 18px}.export-layout{gap:32px}#export-code{font-size:14px}.light-detail>a{overflow:auto}.light-detail img{max-width:none;width:1080px}.architecture{margin-top:40px;padding-top:30px}.architecture ol{grid-template-columns:1fr;gap:22px}.architecture li{display:grid;grid-template-columns:28px 1fr;gap:0 12px}.architecture li::before{grid-row:1/3;margin-top:5px}.engineering-footnote{flex-direction:column}.start-paths{gap:30px}.input-reference>div{grid-template-columns:1fr;gap:20px}.closing{margin-top:45px}footer{flex-wrap:wrap;gap:12px 20px}footer>span:first-child{width:100%}footer>a{margin-left:0}.viewer-toolbar{gap:10px;flex-wrap:wrap}.viewer-toolbar p{display:none}.viewer-toolbar h2{font-size:14px}.viewer-toolbar a{font-size:12px}.viewer-scroll{padding:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Application-inspired tabs: curved shoulders and a continuous accent rail. */
.scene-picker {
  position:relative;
  display:flex;
  gap:6px;
  padding:4px 8px 3px;
  border:0;
  isolation:isolate;
  overflow-x:auto;
  scrollbar-width:thin;
  scrollbar-color:#3b777b transparent;
}
.scene-picker::after {
  content:"";
  position:absolute;
  inset:auto 0 0;
  height:3px;
  background:linear-gradient(90deg,#29494e 0%,#54c9cd 12%,#9affed 28%,#49c6cd 53%,#28575e 80%,#162126 100%);
  z-index:4;
  pointer-events:none;
}
.scene-picker button {
  position:relative;
  flex:0 0 auto;
  padding:6px 16px 8px;
  font-size:14px;
  line-height:20px;
  border:1px solid #303c43;
  border-bottom-color:transparent;
  border-radius:10px 10px 0 0;
  background:linear-gradient(180deg,#1c2328,#141b1f);
  color:var(--muted);
  text-align:left;
}
.scene-picker button:hover {
  background:linear-gradient(180deg,#243038,#19252b);
  color:var(--text);
}
.scene-picker button[aria-pressed=true] {
  border-color:#4d9fa2;
  border-bottom-color:#1b272c;
  background:linear-gradient(180deg,#26363c,#1b272c);
  box-shadow:inset 0 1px 0 #80dfd630;
  color:var(--text);
  z-index:1;
}
.scene-picker button[aria-pressed=true]::before,
.scene-picker button[aria-pressed=true]::after {
  content:"";
  position:absolute;
  bottom:-1px;
  width:11px;
  height:11px;
  border-bottom:1px solid #4d9fa2;
  pointer-events:none;
}
.scene-picker button[aria-pressed=true]::before {
  left:-11px;
  border-right:1px solid #4d9fa2;
  border-bottom-right-radius:11px;
  box-shadow:4px 3px 0 #1b272c;
}
.scene-picker button[aria-pressed=true]::after {
  right:-11px;
  border-left:1px solid #4d9fa2;
  border-bottom-left-radius:11px;
  box-shadow:-4px 3px 0 #1b272c;
}

/* JS maps source pixels to physical display pixels, not CSS pixels. */
.scene-picker,.application-stage {width:min(100%,var(--capture-width,100%));margin-inline:auto}
.application-stage {margin-top:0}
.application-stage>a {
  position:relative;
  height:300px;
  overflow:hidden;
  border-top:0;
  border-radius:0 0 8px 8px;
}
.application-stage img {
  position:absolute;
  width:auto;
  height:auto;
  min-width:0;
  max-width:none;
  margin:0;
  object-fit:contain;
}
.application-stage>a::after {
  content:"View complete image ↗";
  position:absolute;
  right:16px;
  bottom:14px;
  padding:7px 12px;
  border:1px solid #50636c;
  border-radius:4px;
  background:#11191f;
  color:#ecf0f1;
  font:13px/1.5 var(--sans);
  pointer-events:none;
}
.detail-strip>a,.light-detail>a {
  position:relative;
  height:280px;
  overflow:hidden;
}
.detail-strip img,.light-detail img {
  position:absolute;
  width:auto;
  height:auto;
  max-width:none;
  object-fit:contain;
}

/* The modal fits the full bitmap first; native-pixel mode permits panning. */
#image-viewer[open] {display:flex;flex-direction:column;overflow:hidden}
.viewer-toolbar {flex:0 0 auto;flex-wrap:wrap}
.viewer-modes {display:flex;gap:4px}
.viewer-modes button {font-size:14px;border-radius:5px}
.viewer-modes button[aria-pressed=true] {border-color:var(--accent);color:var(--accent);background:#1d3035}
#viewer-status {padding:10px 20px 0;color:var(--muted);font-size:13px;flex:0 0 auto}
.viewer-scroll {flex:1;min-height:0;height:auto;padding:16px;overscroll-behavior:contain}
.viewer-canvas {display:flex;align-items:center;justify-content:center;width:max-content;min-width:100%;min-height:100%}
#viewer-image {display:block;flex:none;max-width:none;user-select:none}
.viewer-scroll[data-mode=pixels] {cursor:grab}
.viewer-scroll[data-panning=true] {cursor:grabbing}
@media(max-width:760px) {
  .scene-picker {display:flex;overflow-x:auto;gap:6px;padding:4px 8px 3px;scrollbar-width:thin;scrollbar-color:#3b777b transparent}
  .scene-picker button {padding:6px 13px 8px;font-size:14px;line-height:20px}
  .application-stage>a {height:300px;overflow:hidden}
  .application-stage img {width:auto;height:auto;min-width:0;max-width:none}
  .detail-strip>a,.light-detail>a {height:260px;overflow:hidden}
  .detail-strip img,.light-detail img {width:auto;height:auto;max-width:none}
  .viewer-toolbar {padding:12px;gap:10px}
  .viewer-toolbar h2 {width:100%}
  .viewer-toolbar a {margin-left:auto}
  .viewer-toolbar button {font-size:13px;padding:7px 9px}
  #viewer-status {padding:8px 16px 0;font-size:12px}
}

/* Chosen edge treatment; full-resolution originals remain unmodified. */
.application-stage>a[data-treatment=darken]::before,
.detail-strip>a[data-treatment=darken]::before,
.light-detail>a[data-treatment=darken]::before {
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
  background:radial-gradient(ellipse at 50% 48%,transparent 38%,#06101540 68%,#061015ba 100%);
}
.application-stage>a::after {z-index:2}

/* Markdown preview is rendered from the same source used by Copy. */
#markdown-controls {display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 20px;border-bottom:1px solid var(--line);flex-wrap:wrap}
#markdown-controls>div {display:flex;gap:4px}
#markdown-controls button {padding:5px 12px;font-size:13px;background:transparent;border:1px solid #38464e;border-radius:4px;color:var(--muted)}
#markdown-controls button[aria-pressed=true] {background:#203237;border-color:var(--accent);color:var(--accent)}
#markdown-controls>span {color:var(--muted);font-size:12px}
#markdown-preview {padding:24px;min-height:245px;overflow-x:auto}
#markdown-preview table {width:100%;border-collapse:collapse;font:14px/1.7 var(--mono)}
#markdown-preview caption {text-align:left;color:var(--muted);font:13px/1.6 var(--sans);padding-bottom:16px}
#markdown-preview th,#markdown-preview td {padding:12px 14px;border:1px solid #38484f;white-space:nowrap}
#markdown-preview th {background:#1c2b30;color:var(--accent);font-weight:500}
#markdown-preview td {background:#131c21;color:#d6e4e4}
#markdown-controls[hidden],#markdown-preview[hidden],#export-code[hidden] {display:none}
@media(max-width:760px) {#markdown-preview{padding:18px}#markdown-controls{padding:12px 18px}}
.workflow-shot {margin-top:24px}
#export-code {max-height:360px;overflow:auto}
.input-reference>.input-table-wrap {display:block;overflow-x:auto;padding:0 0 8px}
.input-table {width:100%;min-width:650px;border-collapse:collapse;font-size:14px;line-height:1.65;text-align:left}
.input-table thead th {padding:14px 18px;color:var(--accent);background:#19252b;font-weight:500;border-bottom:1px solid #49616b}
.input-table tbody th,.input-table td {padding:18px;vertical-align:top;border-bottom:1px solid var(--line)}
.input-table tbody th {width:20%;font-weight:500;color:var(--text)}
.input-table td:nth-child(2) {width:36%;color:var(--text)}
.input-table td:last-child {color:var(--muted)}
.input-table code {display:inline-block;font:13px/1.9 var(--mono);margin:0 8px 3px 0;color:#b6d9dc}
.input-coverage-note {padding:12px 0 20px;color:var(--muted);font-size:13px;max-width:1000px}