:root {
  color-scheme: light;
  --paper: #f6f7f3;
  --surface: #ffffff;
  --ink: #1c2b24;
  --muted: #5b655e;
  --line: #d7ded5;
  --accent: #275b43;
  --tint: #e8eee4;
  --soft: #eef1eb;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  background: var(--paper);
  color: var(--ink);
  -webkit-text-size-adjust: 100%;
}

* { box-sizing: border-box; }
html { scroll-padding-top: 28px; }
body { margin: 0; }
body:has(dialog[open]) { overflow: hidden; }
[hidden] { display: none !important; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; cursor: pointer; }
a { color: inherit; text-underline-offset: 4px; }
button:disabled { cursor: default; opacity: .45; }
a:focus-visible, button:focus-visible, .screen-scroll:focus-visible, .dialog-image-scroll:focus-visible { outline: 3px solid #397b56; outline-offset: 5px; }
p, h1, h2, h3, figure { margin: 0; }
h1, h2, h3 { font-weight: 500; line-height: 1.15; text-wrap: balance; overflow-wrap: anywhere; }
p { text-wrap: pretty; }
code { font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: .88em; }
.shell { width: min(1200px, calc(100% - 96px)); margin-inline: auto; }
.section-space { margin-top: 100px; }
.eyebrow { font-size: .7rem; font-weight: 600; letter-spacing: .13em; text-transform: uppercase; color: var(--accent); }
.text-link { display: inline-flex; align-items: center; gap: 16px; font-size: .86rem; font-weight: 600; color: var(--accent); text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.skip-link { position: fixed; z-index: 10; top: 12px; left: 12px; transform: translateY(-180%); background: var(--surface); padding: 10px 18px; border-radius: 4px; }
.skip-link:focus { transform: translateY(0); }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.site-header { min-height: 114px; display: flex; align-items: center; justify-content: space-between; gap: 36px; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 20px; text-decoration: none; }
.wordmark, .footer-wordmark { font-size: 1.95rem; font-weight: 500; letter-spacing: -.065em; line-height: 1.2; }
.brand-dot { color: var(--accent); }
.brand-label { max-width: 145px; padding-left: 20px; border-left: 1px solid var(--line); font-size: .71rem; line-height: 1.55; color: var(--muted); }
.header-nav { display: flex; gap: 28px; align-items: center; font-size: .79rem; }
.header-nav a { text-decoration: none; }
.header-nav a:hover { color: var(--accent); text-decoration: underline; }
.header-nav a:last-child { color: var(--accent); }
.header-nav a span { margin-left: 6px; }

.intro { padding-top: 64px; padding-bottom: 58px; }
.intro .eyebrow { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.status-dot { width: 6px; height: 6px; background: var(--accent); border-radius: 50%; }
.preview-label { margin-left: 8px; padding: 3px 8px; border: 1px solid var(--line); border-radius: 4px; color: var(--muted); letter-spacing: .04em; font-size: .62rem; }
h1 { margin-top: 26px; font-size: clamp(3.1rem, 6.2vw, 5.4rem); letter-spacing: -.055em; line-height: 1.04; }
h1 span { color: var(--accent); }
.intro-copy { max-width: 660px; margin-top: 28px; font-size: 1.12rem; color: var(--muted); line-height: 1.65; }
.intro-bottom { display: flex; justify-content: space-between; gap: 32px; align-items: flex-end; margin-top: 34px; }
.intro-bottom p { color: var(--muted); font-size: .8rem; line-height: 1.8; }
.intro-bottom strong { font-weight: 500; color: var(--ink); }
.intro-bottom .text-link { padding-bottom: 4px; }

.walkthrough { padding: 34px 36px 26px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 12px 36px rgb(28 43 36 / 3%); }
.section-topline { display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.section-topline h2 { margin-top: 11px; font-size: 1.85rem; letter-spacing: -.035em; }
.protocol-choice { margin: 0; padding: 0; border: 0; flex-shrink: 0; min-width: 0; max-width: 100%; }
.protocol-choice legend { padding: 0; margin-bottom: 6px; text-align: center; font-size: .65rem; color: var(--muted); }
.segmented { display: inline-flex; padding: 3px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); gap: 2px; }
.segmented button { border: 0; border-radius: 4px; padding: 7px 15px; font-size: .73rem; font-weight: 600; background: transparent; color: var(--muted); }
.segmented button[aria-pressed="true"] { background: var(--accent); color: white; }
.walkthrough-note { margin-top: 14px; font-size: .75rem; color: var(--muted); }
.step-nav { margin-top: 28px; }
.step-nav ol { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.step-nav a { display: flex; gap: 13px; align-items: center; padding: 13px 0 17px; border-bottom: 2px solid var(--line); color: var(--muted); text-decoration: none; }
.step-nav a:hover { border-color: var(--accent); color: var(--accent); }
.step-nav a[aria-current="step"] { color: var(--accent); border-color: var(--accent); }
.step-number { font-size: .72rem; width: 29px; height: 29px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; flex-shrink: 0; }
[aria-current="step"] .step-number { background: var(--accent); color: white; border-color: var(--accent); }
.step-nav small { display: block; font-size: .6rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 2px; }
.step-nav strong { display: block; font-size: .88rem; font-weight: 600; }
.step-nav a > span:last-child { min-width: 0; overflow-wrap: anywhere; }
.stage-container { margin-top: 32px; }
.walkthrough-step { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.65fr); gap: 34px; align-items: start; scroll-margin-top: 28px; }
.walkthrough-step + .walkthrough-step { margin-top: 50px; }
.enhanced .walkthrough-step { margin-top: 0; }
.stage-copy { padding-top: 6px; }
.role-label { display: flex; align-items: center; gap: 8px; font-size: .66rem; color: var(--accent); }
.role-label span { font-size: .45rem; }
.stage-copy h3 { margin-top: 17px; font-size: 1.65rem; letter-spacing: -.035em; }
.stage-copy p:not(.role-label) { margin-top: 17px; font-size: .82rem; color: var(--muted); line-height: 1.75; }
.stage-aside { margin-top: 23px; padding-left: 15px; border-left: 2px solid var(--line); font-size: .75rem; color: var(--muted); line-height: 1.7; }
.stage-aside strong { display: block; margin-bottom: 4px; font-weight: 600; color: var(--ink); }
.stage-copy p.stage-takeaway { font-size: .72rem; line-height: 1.7; color: var(--accent); }
.supporting-link { margin-top: 14px; font-size: .75rem; gap: 8px; }
.protocol-screens { min-width: 0; }
.protocol-screens .product-screen + .product-screen { margin-top: 20px; }
.enhanced .protocol-screens .product-screen { margin-top: 0; }
.product-screen { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; min-width: 0; background: #fff; }
.screen-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 12px 15px; background: var(--paper); border-bottom: 1px solid var(--line); font-size: .64rem; }
.screen-toolbar > span { color: var(--muted); }
.screen-toolbar > span > span { margin-inline: 4px; opacity: .65; }
.enlarge-link { font-size: .64rem; flex-shrink: 0; text-decoration: none; font-weight: 600; color: var(--accent); }
.enlarge-link:hover { text-decoration: underline; }
.screen-scroll { max-height: 530px; overflow-y: auto; scrollbar-width: thin; scrollbar-color: #b8c7bb transparent; background: #fafafa; }
.screen-scroll img { display: block; width: 100%; height: auto; }
.product-screen figcaption { padding: 10px 15px; border-top: 1px solid var(--line); font-size: .64rem; color: var(--muted); }
.walkthrough-controls { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-top: 25px; margin-top: 28px; border-top: 1px solid var(--line); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; border-radius: 5px; border: 1px solid transparent; padding: 10px 16px; font-size: .77rem; font-weight: 600; line-height: 1.5; text-decoration: none; }
.button-primary { color: #fff; background: var(--accent); }
.button-primary:hover { background: #1c4833; }
.button-secondary { background: transparent; color: var(--ink); border-color: var(--line); }
.button-secondary:hover:not(:disabled) { background: var(--paper); }
.step-progress { font-size: .7rem; color: var(--muted); text-align: center; }
.step-progress span { margin-inline: 7px; }
.noscript-note { margin-top: 20px; color: var(--muted); font-size: .85rem; }

.section-heading h2 { font-size: clamp(1.9rem, 3.3vw, 2.7rem); letter-spacing: -.04em; margin-top: 14px; line-height: 1.16; }
.section-heading > p:not(.eyebrow) { max-width: 510px; margin-top: 19px; font-size: .9rem; color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 42px; margin-top: 40px; }
.feature-grid article { border-top: 1px solid var(--line); padding-top: 20px; }
.feature-index { font-size: .63rem; color: var(--accent); letter-spacing: .08em; }
.feature-grid h3 { font-size: 1.17rem; line-height: 1.35; margin-top: 12px; letter-spacing: -.02em; }
.feature-grid p { margin-top: 13px; color: var(--muted); font-size: .84rem; }
.ownership-note { display: flex; align-items: flex-start; gap: 17px; padding-top: 26px; border-top: 1px solid var(--line); margin-top: 34px; }
.ownership-mark { font-size: 1.5rem; color: var(--accent); line-height: 1.1; }
.ownership-note p { max-width: 850px; font-size: .83rem; color: var(--muted); }
.ownership-note strong { color: var(--ink); font-weight: 600; }
.installation-section { padding-block: 58px; background: var(--soft); border-block: 1px solid var(--line); }
.installation-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 90px; }
.section-heading > p.baseline-label { display: inline-flex; flex-direction: column; gap: 4px; margin-top: 27px; font-size: .72rem; }
.baseline-label strong { font-size: .89rem; font-weight: 600; color: var(--accent); }
.install-list { list-style: none; padding: 0; margin: 0; }
.install-list li { display: flex; gap: 18px; }
.install-list li + li { margin-top: 27px; }
.install-list li > span { font-size: .7rem; font-variant-numeric: tabular-nums; padding-top: 1px; color: var(--accent); }
.install-list h3 { font-size: .95rem; line-height: 1.5; font-weight: 600; }
.install-list p { font-size: .81rem; color: var(--muted); margin-top: 7px; }
.url-example { margin-top: 27px; background: #e1e8dd; border-radius: 5px; padding: 15px 17px; }
.url-example span { display: block; color: var(--muted); font-size: .65rem; margin-bottom: 6px; }
.url-example code { font-size: .72rem; overflow-wrap: anywhere; line-height: 1.7; }
.install-footnote { font-size: .72rem; color: var(--muted); margin-top: 19px; }
.site-footer { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; padding-block: 42px; margin-top: 42px; }
.footer-wordmark { font-size: 1.4rem; }
.site-footer p { font-size: .7rem; color: var(--muted); margin-top: 8px; }
.site-footer > p { text-align: right; }

.image-dialog { width: min(1500px, calc(100vw - 40px)); max-width: none; height: min(1100px, calc(100dvh - 40px)); max-height: none; padding: 0; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink); }
.image-dialog[open] { display: flex; flex-direction: column; }
.image-dialog::backdrop { background: rgb(15 27 21 / 72%); }
.dialog-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 16px 22px; border-bottom: 1px solid var(--line); flex-shrink: 0; }
.dialog-toolbar h2 { font-size: .9rem; line-height: 1.45; }
.dialog-toolbar .button { flex-shrink: 0; }
.dialog-image-scroll { overflow: auto; flex: 1; min-height: 0; background: #f7f8f8; }
.dialog-image-scroll img { width: 1440px; max-width: none; height: auto; display: block; margin-inline: auto; }
.dialog-footnote { flex-shrink: 0; padding: 12px 22px; font-size: .68rem; color: var(--muted); border-top: 1px solid var(--line); }

@media (min-width: 1540px) { .shell { width: min(1280px, calc(100% - 128px)); } }
@media (max-width: 1000px) {
  .shell { width: calc(100% - 64px); }
  .site-header { gap: 20px; }
  .header-nav { gap: 18px; font-size: .74rem; }
  .brand-label { display: none; }
  .walkthrough { padding-inline: 26px; }
  .walkthrough-step { grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr); gap: 27px; }
  .stage-copy h3 { font-size: 1.45rem; }
  .screen-toolbar { align-items: flex-start; flex-direction: column; gap: 5px; }
  .feature-grid { gap: 26px; }
  .installation-grid { gap: 48px; }
}
@media (max-width: 760px) {
  .shell { width: calc(100% - 48px); }
  .site-header { min-height: 98px; }
  .header-nav { gap: 16px; }
  .header-nav a:nth-child(2) { display: none; }
  .intro { padding-top: 46px; padding-bottom: 40px; }
  h1 { font-size: clamp(3rem, 8vw, 4.2rem); }
  .intro-copy { font-size: 1rem; }
  .intro-bottom { align-items: flex-start; }
  .walkthrough { padding: 27px 24px 22px; }
  .walkthrough-step { grid-template-columns: 1fr; gap: 26px; }
  .stage-copy { max-width: 570px; }
  .stage-copy h3 { font-size: 1.7rem; }
  .stage-copy p:not(.role-label) { font-size: .88rem; }
  .stage-aside { font-size: .8rem; }
  .stage-copy p.stage-takeaway { font-size: .77rem; }
  .screen-toolbar { flex-direction: row; }
  .screen-scroll { max-height: 430px; }
  .section-topline h2 { font-size: 1.6rem; }
  .step-nav ol { gap: 12px; }
  .step-nav a { gap: 9px; }
  .step-number { width: 24px; height: 24px; font-size: .64rem; }
  .step-nav strong { font-size: .77rem; }
  .section-space { margin-top: 70px; }
  .feature-grid { gap: 27px; }
  .feature-grid h3 { font-size: 1.08rem; }
  .feature-grid p { font-size: .79rem; }
  .installation-grid { grid-template-columns: 1fr; gap: 35px; }
  .installation-section { padding-block: 42px; }
}
@media (max-width: 520px) {
  .shell { width: calc(100% - 40px); }
  .site-header { min-height: 86px; gap: 18px; }
  .wordmark { font-size: 1.65rem; }
  .header-nav { gap: 0; font-size: .7rem; }
  .header-nav a:not(:last-child) { display: none; }
  .header-nav a span { display: none; }
  .intro { padding-top: 34px; }
  .intro .eyebrow { gap: 8px; font-size: .63rem; }
  .preview-label { margin-left: 0; }
  h1 { margin-top: 22px; font-size: clamp(2.8rem, 11.3vw, 3.7rem); }
  .intro-copy { font-size: .95rem; margin-top: 23px; }
  .intro-bottom { flex-direction: column; gap: 17px; margin-top: 25px; }
  .walkthrough { padding: 24px 18px 20px; border-radius: 9px; }
  .section-topline { align-items: flex-start; flex-direction: column; gap: 18px; }
  .section-topline h2 { font-size: 1.55rem; }
  .protocol-choice { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
  .protocol-choice legend { float: left; margin: 0; padding-top: 10px; font-size: .7rem; }
  .segmented button { padding: 7px 15px; }
  .walkthrough-note { font-size: .7rem; margin-top: 17px; }
  .step-nav { margin-top: 18px; }
  .step-nav ol { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px 18px; }
  .step-nav a { gap: 10px; padding-block: 12px; }
  .step-nav strong { font-size: .86rem; }
  .step-nav small { font-size: .58rem; }
  .stage-container { margin-top: 25px; }
  .stage-copy h3 { font-size: 1.6rem; margin-top: 14px; }
  .stage-copy p:not(.role-label) { font-size: .84rem; margin-top: 15px; }
  .stage-aside { margin-top: 19px; padding-left: 12px; }
  .role-label { font-size: .64rem; }
  .stage-copy p.stage-takeaway { font-size: .73rem; }
  .screen-toolbar { flex-direction: column; padding: 10px 12px; }
  .screen-scroll { max-height: 320px; }
  .product-screen figcaption { padding: 9px 12px; font-size: .6rem; }
  .walkthrough-controls { flex-wrap: wrap; padding-top: 19px; margin-top: 22px; gap: 12px; }
  .step-progress { order: -1; width: 100%; }
  .walkthrough-controls .button { padding: 10px 11px; font-size: .72rem; gap: 8px; }
  .section-space { margin-top: 58px; }
  .section-heading h2 { font-size: 1.95rem; }
  .section-heading > p:not(.eyebrow) { font-size: .85rem; }
  .feature-grid { grid-template-columns: 1fr; gap: 25px; margin-top: 30px; }
  .feature-grid h3 { font-size: 1.2rem; }
  .feature-grid p { font-size: .84rem; }
  .ownership-note { gap: 12px; }
  .ownership-note p { font-size: .8rem; }
  .installation-section { padding-block: 36px; }
  .install-list li { gap: 14px; }
  .install-list p { font-size: .8rem; }
  .url-example { padding: 13px 14px; }
  .url-example code { font-size: .69rem; }
  .site-footer { align-items: flex-start; flex-direction: column; gap: 19px; padding-block: 30px; margin-top: 24px; }
  .site-footer > p { text-align: left; margin-top: 0; }
  .image-dialog { width: calc(100vw - 20px); height: calc(100dvh - 20px); border-radius: 6px; }
  .dialog-toolbar { align-items: flex-start; gap: 14px; padding: 12px; }
  .dialog-toolbar h2 { font-size: .78rem; }
  .dialog-toolbar .button { padding: 7px 10px; font-size: .7rem; }
  .dialog-footnote { padding: 10px 12px; font-size: .63rem; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media print {
  .site-header, .protocol-choice, .step-nav, .walkthrough-controls, .enlarge-link, .image-dialog { display: none !important; }
  [data-step][hidden], [data-protocol][hidden] { display: grid !important; }
  [data-protocol][hidden]:not(figure) { display: block !important; }
  .shell { width: 100%; }
  .intro { padding-top: 0; }
  .walkthrough { padding: 20px; box-shadow: none; }
  .walkthrough-step { break-inside: avoid; margin-block: 25px !important; }
  .screen-scroll { max-height: none; overflow: visible; }
  .product-screen { break-inside: avoid; }
  .section-space { margin-top: 40px; }
  .installation-section { padding-block: 30px; }
}