@font-face {
  font-family: "Noto Sans";
  src: url("assets/noto-sans-400.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Noto Sans";
  src: url("assets/noto-sans-600.woff2") format("woff2");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: "Noto Sans";
  src: url("assets/noto-sans-700.woff2") format("woff2");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

:root {
  color-scheme: light;
  --paper: #f7f9fb;
  --white: #ffffff;
  --navy: #102b4e;
  --ink: #273e56;
  --muted: #5d6e7d;
  --line: #dbe3e9;
  --line-strong: #c6d3de;
  --blue: #1583c8;
  --blue-ink: #096aa5;
  --blue-wash: #e9f3fb;
  --orange: #e77826;
  --orange-ink: #a94e0e;
  --orange-wash: #fcf0e6;
  --teal: #008f88;
  --teal-ink: #00716c;
  --teal-wash: #e7f5f2;
  --radius: 10px;
  font-family: "Noto Sans", Arial, sans-serif;
  font-synthesis: none;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 115px; }
body { margin: 0; min-width: 320px; -webkit-font-smoothing: antialiased; }
button, input { font: inherit; }
button, a, input { -webkit-tap-highlight-color: transparent; }
button { color: inherit; cursor: pointer; }
button, input { border-radius: 0; }
button { appearance: none; }
a { color: inherit; text-decoration: none; }
button:disabled { cursor: not-allowed; opacity: .4; }
button:focus-visible, a:focus-visible, input:focus-visible, [tabindex]:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 4px;
}
input:focus-visible { outline-offset: 1px; }
::selection { color: var(--navy); background: #cce8f7; }
h1, h2, h3, h4, p { margin: 0; }
h1, h2, h3, h4 { color: var(--navy); }
h2 { font-size: clamp(1.7rem, 2.55vw, 2.25rem); line-height: 1.24; letter-spacing: -.055em; font-weight: 600; }
code { font: 600 .94em "Noto Sans", Arial, sans-serif; }
[hidden] { display: none !important; }
[data-icon] { display: inline-flex; width: 20px; height: 20px; flex: 0 0 20px; align-items: center; justify-content: center; vertical-align: middle; }
[data-icon] svg { display: block; width: 100%; height: 100%; }
.page-width { width: calc(100% - 96px); max-width: 1440px; margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 12px; left: 16px; z-index: 100; transform: translateY(-160%); background: var(--navy); color: white; padding: 10px 18px; border-radius: 6px; }
.skip-link:focus { transform: translateY(0); }
.eyebrow { font-size: .65rem; font-weight: 700; letter-spacing: .145em; text-transform: uppercase; line-height: 1.5; }

/* The only persistent chrome: a compact, paper-toned masthead. */
.site-header { position: sticky; top: 0; z-index: 30; border-bottom: 1px solid var(--line); background: rgba(255, 255, 255, .97); }
.topbar { display: flex; align-items: center; gap: 24px; min-height: 80px; }
.brand { display: inline-flex; gap: 11px; align-items: center; flex-shrink: 0; font-size: 25px; font-weight: 700; letter-spacing: -1.2px; color: var(--navy); }
.brand-mark { width: 30px; height: 34px; }
.brand-period { color: var(--blue); }
.header-eyebrow { padding-left: 24px; border-left: 1px solid var(--line); font-size: .65rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.reference-badge { margin-left: auto; display: inline-flex; align-items: center; gap: 7px; padding: 6px 9px; font-size: .61rem; font-weight: 600; color: var(--muted); white-space: nowrap; background: #f3f6f8; border: 1px solid #e4e9ee; border-radius: 4px; }
.badge-square { width: 5px; height: 5px; background: #7b8fa3; }
.header-actions { display: flex; align-items: center; gap: 17px; margin-left: auto; }
.text-action { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: .74rem; color: var(--navy); white-space: nowrap; }
.text-action [data-icon] { width: 17px; height: 17px; flex-basis: 17px; }
.text-action:hover { color: var(--blue-ink); }
.icon-button { display: inline-flex; justify-content: center; align-items: center; width: 40px; height: 40px; padding: 9px; color: var(--navy); background: transparent; border: 1px solid var(--line); border-radius: 6px; flex-shrink: 0; }
.icon-button:hover { background: var(--blue-wash); border-color: var(--line-strong); }
.print-action { border: 0; border-left: 1px solid var(--line); border-radius: 0; padding-left: 17px; width: 39px; }

/* Large editorial heading, with a restrained figure-reference plate. */
.hero { display: flex; align-items: center; justify-content: space-between; gap: 40px; padding: 57px 0 45px; }
.hero .eyebrow { color: var(--blue-ink); display: flex; align-items: center; gap: 12px; }
.eyebrow-line { width: 26px; height: 2px; background: var(--blue); }
h1 { font-weight: 600; font-size: clamp(2.8rem, 5vw, 4.6rem); line-height: 1.075; letter-spacing: -.065em; margin-top: 20px; }
h1 > span { color: #718299; }
.hero-description { font-size: 1.06rem; color: var(--muted); max-width: 760px; margin-top: 24px; letter-spacing: -.02em; }
.figure-reference { align-self: center; flex: 0 0 221px; padding-left: 32px; border-left: 1px solid var(--line-strong); color: var(--muted); }
.figure-reference-label { display: block; font-size: .65rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; }
.figure-number { display: block; position: relative; font-size: 76px; font-weight: 400; letter-spacing: -.075em; line-height: 1.4; color: var(--navy); }
.figure-corner { position: absolute; top: 20px; right: 20px; width: 20px; height: 20px; border-top: 2px solid var(--orange); border-right: 2px solid var(--orange); }
.figure-reference-caption { display: block; font-size: .7rem; }

/* Resource-focused principles remain visible without JavaScript. */
.zero-trust-principles { padding: 25px 28px 22px; margin-bottom: 32px; border: 1px solid var(--line); border-left: 3px solid var(--blue); border-radius: 7px; background: var(--white); }
.principles-intro h2 { font-size: 1.35rem; letter-spacing: -.035em; }
.principles-intro p { margin-top: 9px; max-width: 960px; color: var(--muted); font-size: .85rem; line-height: 1.7; }
.principles-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 25px; margin-top: 22px; }
.principle-item { min-width: 0; }
.principle-item + .principle-item { border-left: 1px solid var(--line); padding-left: 25px; }
.principle-item h3 { font-size: .88rem; font-weight: 600; letter-spacing: -.025em; }
.principle-item p { margin-top: 7px; color: var(--muted); font-size: .8rem; line-height: 1.75; }
.standards-reference { margin-top: 20px; color: var(--muted); font-size: .66rem; line-height: 1.7; }
.standards-reference a { color: var(--blue-ink); text-decoration: underline; text-underline-offset: 3px; overflow-wrap: anywhere; }
.standards-reference a:hover { color: var(--navy); }

/* Section navigation is intentionally independent of domain selection. */
.section-nav { display: flex; align-items: stretch; gap: 30px; min-height: 65px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-nav-link { position: relative; display: inline-flex; align-items: center; gap: 11px; font-size: .77rem; color: var(--muted); font-weight: 600; white-space: nowrap; }
.section-nav-link [data-icon] { width: 16px; height: 16px; flex-basis: 16px; margin-left: 8px; }
.section-nav-link.is-current { color: var(--navy); }
.section-nav-link.is-current::after { position: absolute; bottom: -1px; left: 0; right: 0; height: 2px; content: ""; background: var(--blue); }
.section-nav-link:hover { color: var(--blue-ink); }
.nav-index { font-size: .62rem; color: #7a8c9e; font-weight: 400; }
.nav-caption { margin-left: auto; align-self: center; color: #6b7b8d; font-size: .68rem; }

/* No connectors: these rails denote grouping, never execution flow. */
.architecture-section { padding: 48px 0 0; }
.section-heading { display: flex; align-items: center; justify-content: space-between; gap: 26px; }
.section-eyebrow { color: var(--muted); margin-bottom: 12px; }
.section-description { margin-top: 12px; color: var(--muted); font-size: .95rem; line-height: 1.65; }
.architecture-heading { margin-bottom: 27px; align-items: flex-end; }
.map-note { display: flex; gap: 10px; align-items: flex-start; color: var(--muted); font-size: .69rem; line-height: 1.6; padding: 0 0 3px 18px; border-left: 1px solid var(--line-strong); }
.map-note [data-icon] { color: #728aa0; width: 17px; height: 17px; flex-basis: 17px; margin-top: 3px; }
.architecture-layout { display: grid; grid-template-columns: minmax(0, 1fr) 336px; gap: 24px; align-items: start; }
.map-workspace { min-width: 0; }
.map-toolbar { margin-bottom: 26px; }
.view-filters { display: flex; align-items: center; gap: 5px; padding: 5px; background: #eaf0f5; border: 1px solid #e0e7ed; border-radius: 7px; }
.filter-button { border: 1px solid transparent; background: transparent; padding: 9px 13px; border-radius: 4px; flex: 1 1 auto; white-space: nowrap; font-size: .68rem; font-weight: 600; line-height: 1.4; color: #5a6d80; }
.filter-button.is-active, .filter-button[aria-pressed="true"] { color: var(--navy); background: var(--white); border-color: #dce4eb; box-shadow: 0 1px 3px #102b4e0a; }
.filter-button:hover:not(.is-active) { color: var(--navy); background: #f4f7fa; }
.search-row { display: flex; align-items: center; gap: 16px; margin-top: 14px; }
.search-field { display: flex; align-items: center; flex: 1; min-width: 0; background: white; padding-left: 13px; gap: 9px; border: 1px solid var(--line); border-radius: 6px; }
.search-field:focus-within { border-color: var(--blue); box-shadow: 0 0 0 2px #1583c813; }
.search-field [data-icon] { width: 17px; height: 17px; flex-basis: 17px; color: #6a8196; }
.search-field input { width: 100%; min-width: 0; background: transparent; color: var(--navy); font-size: .76rem; border: 0; padding: 11px 12px 11px 0; outline: none; }
.search-field input::placeholder { opacity: 1; color: #758596; }
.visible-count { white-space: nowrap; font-size: .65rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.reset-button { display: inline-flex; align-items: center; justify-content: center; gap: 7px; padding: 8px 0 8px 14px; border: 0; border-left: 1px solid var(--line); background: transparent; color: #536b80; font-size: .68rem; font-weight: 600; min-height: 40px; }
.reset-button [data-icon] { width: 14px; height: 14px; flex-basis: 14px; }
.reset-button:hover { color: var(--blue-ink); }
.domain-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.zone-column { --zone: var(--blue); --zone-ink: var(--blue-ink); --zone-wash: var(--blue-wash); display: flex; flex-direction: column; min-width: 0; }
.zone-runtime { --zone: var(--orange); --zone-ink: var(--orange-ink); --zone-wash: var(--orange-wash); }
.zone-memory { --zone: var(--teal); --zone-ink: var(--teal-ink); --zone-wash: var(--teal-wash); }
.zone-column:not(:has(.domain-card:not([hidden]):not(.is-dimmed))) { display: none; }
.zone-heading { padding: 0 0 19px; min-height: 111px; }
.zone-chip { display: inline-block; padding: 4px 7px; background: var(--zone-wash); color: var(--zone-ink); border-radius: 3px; font-size: .53rem; letter-spacing: .07em; text-transform: uppercase; font-weight: 700; line-height: 1.7; }
.zone-heading h3 { margin: 10px 0 4px; font-size: 1.04rem; font-weight: 600; letter-spacing: -.045em; line-height: 1.3; }
.zone-heading p { font-size: .61rem; color: var(--muted); line-height: 1.5; }
.zone-cards { display: grid; grid-template-rows: repeat(2, 1fr); gap: 14px; flex: 1; padding-top: 13px; position: relative; }
.zone-cards::before { position: absolute; content: ""; top: 0; left: 0; width: 100%; height: 1px; background: var(--line-strong); }
.zone-cards::after { position: absolute; content: ""; top: 0; left: 0; width: 25px; height: 2px; background: var(--zone); }
.domain-card { position: relative; display: flex; flex-direction: column; align-items: stretch; width: 100%; min-width: 0; min-height: 292px; padding: 19px 18px 0; border: 1px solid #dce4eb; border-radius: var(--radius); background: white; text-align: left; box-shadow: 0 3px 7px #102b4e02; transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease, background .18s ease; }
.domain-card::before { position: absolute; content: ""; width: 19px; height: 19px; left: -1px; top: -1px; border-top: 2px solid transparent; border-left: 2px solid transparent; border-top-left-radius: var(--radius); pointer-events: none; }
.domain-card:hover { transform: translateY(-2px); border-color: #a8bccd; box-shadow: 0 7px 18px #102b4e08; }
.domain-card.is-selected, .domain-card[aria-pressed="true"] { border-color: var(--zone); box-shadow: 0 0 0 1px var(--zone), 0 5px 15px #102b4e06; background: linear-gradient(155deg, var(--zone-wash), white 48%); }
.domain-card.is-selected::before { border-color: var(--zone); }
.domain-card.is-connected:not(.is-selected) { border-color: var(--zone); background: var(--zone-wash); box-shadow: inset 0 0 0 1px var(--zone); }
.domain-card.is-dimmed { display: none; }
.zone-column.is-dimmed { display: none; }
.card-topline { display: flex; align-items: center; gap: 8px; margin-bottom: 18px; }
.domain-icon { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 7px; color: var(--zone-ink); background: var(--zone-wash); }
.domain-icon [data-icon] { width: 21px; height: 21px; flex-basis: 21px; }
.domain-number { color: #8797a7; margin-left: auto; font-size: .64rem; font-weight: 400; font-variant-numeric: tabular-nums; }
.selected-indicator { display: none; color: var(--zone-ink); }
.selected-indicator [data-icon] { width: 16px; height: 16px; flex-basis: 16px; }
.is-selected .selected-indicator { display: inline-flex; }
.is-selected .domain-number { display: none; }
.domain-title { color: var(--navy); font-size: 1.07rem; line-height: 1.3; font-weight: 600; letter-spacing: -.045em; margin-bottom: 16px; }
.domain-controls { display: flex; flex-direction: column; gap: 11px; padding-bottom: 20px; font-size: .96rem; line-height: 1.5; color: #53677a; }
.domain-controls > span { display: block; padding-left: 11px; position: relative; overflow-wrap: anywhere; }
.domain-controls > span::before { content: ""; position: absolute; top: .65em; left: 0; width: 3px; height: 3px; background: var(--zone); border-radius: 50%; }
.inline-qualifier { font-size: .72rem; color: var(--muted); }
.card-footer { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 13px 0; margin-top: auto; border-top: 1px solid #e8edf1; font-size: .61rem; font-weight: 600; color: #657a8e; }
.card-footer [data-icon] { width: 15px; height: 15px; flex-basis: 15px; }
.is-selected .card-footer { color: var(--zone-ink); }
.map-footnote { display: flex; align-items: baseline; gap: 9px; font-size: .63rem; color: #6c7e8f; line-height: 1.7; margin-top: 18px; }
.map-footnote-marker { display: inline-block; flex-shrink: 0; width: 6px; height: 6px; border: 1px solid #94a6b8; transform: rotate(45deg); }
.no-results { padding: 44px 26px; background: white; border: 1px dashed var(--line-strong); border-radius: var(--radius); text-align: center; }
.no-results > [data-icon] { color: var(--blue-ink); margin-bottom: 13px; }
.no-results h3 { font-size: 1.15rem; font-weight: 600; letter-spacing: -.03em; }
.no-results p { max-width: 490px; margin: 10px auto 0; color: var(--muted); font-size: .95rem; }

/* Selection details remain in document flow; no dialog or mobile overlay. */
.detail-panel { position: sticky; top: 104px; background: #edf3f8; border: 1px solid #d7e1ea; border-radius: var(--radius); overflow: hidden; scroll-margin-top: 110px; }
.detail-panel-label { display: flex; align-items: center; justify-content: space-between; padding: 16px 23px; background: #e4ecf3; border-bottom: 1px solid #d5e0e9; color: #566e85; font-size: .63rem; font-weight: 600; letter-spacing: .04em; }
.detail-panel-label > span { display: inline-flex; align-items: center; gap: 9px; }
.detail-panel-label [data-icon] { width: 16px; height: 16px; flex-basis: 16px; }
.detail-close { display: none; }
.detail-intro { padding: 25px 23px 23px; }
.detail-intro .eyebrow { font-size: .59rem; color: var(--blue-ink); }
.detail-intro h2 { font-size: 1.7rem; letter-spacing: -.055em; line-height: 1.2; margin: 11px 0 15px; }
#detail-summary { font-size: .96rem; line-height: 1.75; color: #566d83; }
.detail-body { padding: 0 23px 24px; }
.detail-section-label { display: flex; align-items: center; gap: 7px; font-size: .58rem; font-weight: 700; letter-spacing: .11em; text-transform: uppercase; color: #647a90; line-height: 1.5; margin-bottom: 12px; }
.detail-controls { display: grid; gap: 9px; padding: 0; margin: 0; list-style: none; }
.detail-controls > * { padding: 15px; background: rgba(255, 255, 255, .8); border: 1px solid #dce5ed; border-radius: 6px; list-style: none; }
.detail-controls h3, .detail-controls h4, .detail-controls strong { display: block; font-size: .95rem; font-weight: 600; letter-spacing: -.02em; color: var(--navy); line-height: 1.45; }
.detail-controls p, .detail-controls .control-description, .detail-controls .control-explanation { font-size: .94rem; color: #5e7387; line-height: 1.75; margin-top: 6px; }
.detail-control { display: flex; align-items: baseline; gap: 10px; }
.detail-control-number { flex: 0 0 16px; font-size: .6rem; color: var(--blue-ink); font-variant-numeric: tabular-nums; }
.detail-control-copy { min-width: 0; }
.control-number, .control-detail-number { font-size: .62rem; color: var(--blue-ink); }
.detail-enforcement-section { margin-top: 24px; }
.detail-enforcement { display: flex; flex-wrap: wrap; gap: 8px; }
.detail-enforcement button { display: flex; align-items: center; gap: 8px; padding: 10px 11px; border: 1px solid #c6d9e5; background: #f6fafc; color: var(--blue-ink); font-size: .72rem; font-weight: 600; line-height: 1.5; border-radius: 5px; text-align: left; }
.detail-enforcement button:hover { background: white; border-color: var(--blue); }
.detail-enforcement [data-icon] { width: 15px; height: 15px; flex-basis: 15px; }
.detail-enforcement [data-icon]:last-child { margin-left: auto; }
.detail-risk-section { margin-top: 24px; padding-top: 18px; border-top: 1px solid #d3dfe9; }
.detail-risk-section .detail-section-label { color: var(--orange-ink); margin-bottom: 8px; }
.detail-risk-section [data-icon] { width: 14px; height: 14px; flex-basis: 14px; }
#detail-risk { color: #5e7183; font-size: .94rem; line-height: 1.75; }
.detail-panel[data-color="orange"] .detail-intro .eyebrow, .detail-panel[data-color="orange"] .detail-control-number { color: var(--orange-ink); }
.detail-panel[data-color="teal"] .detail-intro .eyebrow, .detail-panel[data-color="teal"] .detail-control-number { color: var(--teal-ink); }

/* Checkpoints are independently selectable, not success-status indicators. */
.enforcement-section { margin-top: 59px; padding: 46px 0 52px; border-top: 1px solid var(--line); }
.enforcement-section .section-heading { align-items: flex-end; margin-bottom: 28px; }
.primary-button, .secondary-button { display: inline-flex; justify-content: center; align-items: center; gap: 11px; padding: 13px 17px; min-height: 46px; border-radius: 5px; font-size: .76rem; font-weight: 600; line-height: 1.5; text-align: center; }
.primary-button { background: var(--navy); border: 1px solid var(--navy); color: white; }
.primary-button:hover:not(:disabled) { background: #1a416d; border-color: #1a416d; }
.secondary-button { background: transparent; border: 1px solid #bccbda; color: var(--navy); }
.secondary-button:hover:not(:disabled) { background: white; }
.primary-button [data-icon], .secondary-button [data-icon] { width: 17px; height: 17px; flex-basis: 17px; }
#start-walkthrough { margin-bottom: 3px; flex-shrink: 0; }
#start-walkthrough > [data-icon]:first-child { width: 14px; height: 14px; flex-basis: 14px; }
.checkpoint-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 13px; }
.checkpoint-button { display: flex; flex-direction: column; align-items: flex-start; position: relative; text-align: left; min-height: 178px; padding: 19px 19px 22px; background: white; border: 1px solid var(--line); border-radius: 7px; transition: border-color .18s ease, background .18s ease; }
.checkpoint-button:hover { border-color: var(--teal); }
.checkpoint-topline { display: flex; width: 100%; justify-content: space-between; align-items: center; color: var(--teal-ink); margin-bottom: 23px; }
.checkpoint-number { font-size: .65rem; font-variant-numeric: tabular-nums; color: #78908e; }
.checkpoint-topline [data-icon] { width: 22px; height: 22px; flex-basis: 22px; }
.checkpoint-button strong { font-size: 1.04rem; line-height: 1.35; letter-spacing: -.04em; font-weight: 600; color: var(--navy); padding-right: 3px; }
.checkpoint-caption { font-size: .66rem; color: var(--muted); line-height: 1.6; margin-top: 9px; padding-right: 15px; }
.checkpoint-arrow { position: absolute; bottom: 16px; right: 13px; width: 14px; height: 14px; color: #81978f; }
.checkpoint-button.is-active, .checkpoint-button[aria-pressed="true"], .checkpoint-button[data-active-step="true"] { border-color: var(--teal); background: var(--teal-wash); box-shadow: inset 0 2px 0 var(--teal); }
.walkthrough-bar { display: flex; justify-content: space-between; align-items: center; gap: 25px; padding: 22px 25px; margin-top: 19px; border: 1px solid #c7d8e6; border-left: 3px solid var(--blue); background: #edf4fa; border-radius: 6px; }
.walkthrough-label { display: block; color: var(--blue-ink); font-size: .57rem; letter-spacing: .1em; text-transform: uppercase; font-weight: 700; margin-bottom: 5px; }
#step-counter { font-size: .86rem; color: var(--navy); font-weight: 600; }
#step-description { margin-top: 5px; color: #5b7288; font-size: .83rem; }
.walkthrough-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.walkthrough-actions .icon-button { margin-left: 8px; }

/* The limitation statement is visually as deliberate as the control map. */
.risk-section { padding: 31px 34px 0; border: 1px solid #e8d6c5; border-top: 2px solid var(--orange); border-radius: 8px; background: #fcf9f5; }
.risk-header { display: flex; gap: 17px; align-items: flex-start; }
.risk-icon { display: inline-flex; align-items: center; justify-content: center; width: 41px; height: 41px; background: #faeddf; color: var(--orange-ink); border-radius: 7px; margin-top: 3px; }
.risk-icon [data-icon] { width: 23px; height: 23px; flex-basis: 23px; }
.risk-header .eyebrow { color: var(--orange-ink); margin-bottom: 10px; }
.risk-header h2 { font-size: 1.8rem; }
.risk-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 27px; margin: 31px 0 27px; }
.risk-item + .risk-item { border-left: 1px solid #e8ded3; padding-left: 27px; }
.risk-number { font-size: .58rem; font-weight: 600; letter-spacing: .07em; color: #97734e; text-transform: uppercase; }
.risk-item h3 { font-size: 1.05rem; font-weight: 600; line-height: 1.5; letter-spacing: -.025em; margin-top: 11px; max-width: 340px; }
.risk-item p { font-size: .87rem; line-height: 1.7; color: #746b61; margin-top: 10px; }
.risk-bottom-note { border-top: 1px solid #e8ded3; padding: 17px 0 19px; color: #7b6957; font-size: .76rem; }

.site-footer { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; padding-top: 37px; padding-bottom: 35px; margin-top: 25px; }
.footer-wordmark { color: var(--navy); font-size: 20px; letter-spacing: -.9px; font-weight: 700; }
.site-footer p { margin-top: 10px; color: #738294; font-size: .67rem; line-height: 1.8; }
.footer-source { text-align: right; padding-top: 4px; }
.footer-source .eyebrow { color: #7c8b99; font-size: .55rem; }
.footer-source p { margin-top: 7px; }
.footer-source a { margin-top: 8px; display: inline-flex; align-items: center; gap: 9px; color: var(--blue-ink); font-size: .64rem; font-weight: 600; }
.footer-source a [data-icon] { width: 13px; height: 13px; flex-basis: 13px; }

@media (min-width: 1600px) {
  .architecture-layout { grid-template-columns: minmax(0, 1fr) 360px; gap: 28px; }
  .domain-grid { gap: 20px; }
  .domain-card { min-height: 310px; padding-inline: 22px; }
  .domain-controls { font-size: .96rem; }
  .detail-intro { padding: 27px; }
  .detail-body { padding-inline: 27px; }
}

@media (max-width: 1250px) {
  .page-width { width: calc(100% - 64px); }
  .topbar { gap: 18px; }
  .header-eyebrow { display: none; }
  .architecture-layout { grid-template-columns: minmax(0, 1fr) 306px; gap: 20px; }
  .domain-grid { gap: 12px; }
  .domain-card { padding: 16px 14px 0; }
  .domain-title { font-size: 1.05rem; }
  .zone-heading h3 { font-size: 1rem; }
  .filter-button { padding-inline: 8px; }
  .detail-intro { padding-inline: 20px; }
  .detail-body { padding-inline: 20px; }
  .checkpoint-button { padding: 17px 15px 21px; }
  .checkpoint-button strong { font-size: 1rem; }
}

@media (max-width: 1100px) {
  .architecture-layout { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .detail-panel { position: static; display: grid; grid-template-columns: .8fr 1.4fr; }
  .detail-panel-label { grid-column: 1 / -1; padding-block: 12px; }
  .detail-intro { padding: 27px; }
  .detail-body { padding: 27px 27px 27px 0; }
  .detail-close { display: inline-flex; height: 32px; width: 32px; border: 0; padding: 7px; }
  .domain-card { padding: 21px 21px 0; }
  .domain-controls { font-size: .96rem; }
  .zone-heading h3 { font-size: 1.12rem; }
  .zone-heading p { font-size: .68rem; }
  .filter-button { padding-inline: 17px; font-size: .73rem; }
  .nav-caption { display: none; }
  .checkpoint-grid { gap: 10px; }
  .checkpoint-button strong { font-size: .96rem; }
  .checkpoint-caption { font-size: .63rem; }
  .checkpoint-button { min-height: 195px; }
  .enforcement-section .section-description { max-width: 500px; }
  #start-walkthrough { font-size: .7rem; padding-inline: 13px; }
  .walkthrough-bar { align-items: flex-start; }
}

@media (max-width: 800px) {
  .page-width { width: calc(100% - 40px); }
  .topbar { min-height: 72px; gap: 14px; flex-wrap: wrap; padding-top: 15px; padding-bottom: 11px; }
  .brand { font-size: 23px; }
  .brand-mark { width: 27px; height: 30px; }
  .header-actions { margin-left: auto; gap: 12px; }
  .reference-badge { order: 4; width: 100%; margin: 0; justify-content: center; padding-block: 4px; font-size: .57rem; }
  html { scroll-padding-top: 140px; }
  .hero { padding: 38px 0 31px; gap: 24px; }
  h1 { font-size: clamp(2.8rem, 7.3vw, 3.8rem); }
  .hero-description { font-size: .98rem; max-width: 480px; }
  .figure-reference { flex-basis: 160px; padding-left: 22px; }
  .figure-reference-caption { font-size: .59rem; }
  .figure-number { font-size: 64px; }
  .figure-corner { right: 5px; }
  .section-nav { gap: 25px; }
  .section-nav-link { font-size: .71rem; gap: 8px; }
  .section-nav-link [data-icon] { display: none; }
  .architecture-section { padding-top: 34px; }
  .architecture-heading { display: block; }
  .map-note { margin-top: 18px; padding-left: 0; border-left: 0; font-size: .69rem; }
  .desktop-break { display: none; }
  .domain-grid { gap: 12px; }
  .zone-heading { min-height: 115px; }
  .zone-heading h3 { font-size: 1.04rem; }
  .zone-heading p { font-size: .61rem; }
  .zone-chip { font-size: .48rem; }
  .domain-card { padding: 17px 14px 0; }
  .domain-controls { font-size: .94rem; }
  .domain-title { font-size: 1.07rem; }
  .detail-panel { scroll-margin-top: 140px; }
  .detail-intro { padding: 23px; }
  .detail-body { padding: 23px 23px 23px 0; }
  .enforcement-section { margin-top: 39px; padding-top: 34px; }
  .enforcement-section .section-heading { display: block; }
  #start-walkthrough { margin-top: 20px; font-size: .76rem; padding-inline: 17px; }
  .checkpoint-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
  .checkpoint-button { min-height: 180px; }
  .checkpoint-button strong { font-size: 1.06rem; }
  .checkpoint-caption { font-size: .69rem; }
  .walkthrough-bar { flex-direction: column; align-items: stretch; }
  .walkthrough-actions { justify-content: flex-end; }
  .risk-section { padding: 26px 24px 0; }
  .risk-grid { gap: 20px; }
  .risk-item + .risk-item { padding-left: 20px; }
  .risk-item h3 { font-size: 1rem; }
  .risk-item p { font-size: .84rem; }
  .site-footer { gap: 30px; }
}

@media (max-width: 600px) {
  .page-width { width: calc(100% - 36px); }
  .topbar { column-gap: 10px; }
  .brand { gap: 8px; font-size: 22px; }
  .download-action { font-size: .66rem; gap: 6px; }
  .print-action { width: 32px; padding-left: 12px; }
  .header-actions { gap: 8px; }
  .hero { padding-top: 30px; display: block; }
  .hero .eyebrow { font-size: .56rem; letter-spacing: .12em; }
  h1 { margin-top: 17px; font-size: clamp(2.65rem, 10.4vw, 3.8rem); }
  .hero-description { margin-top: 19px; font-size: .97rem; line-height: 1.7; }
  .figure-reference { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; margin-top: 23px; border: 0; padding: 0; }
  .figure-reference-label { font-size: .54rem; }
  .figure-number { font-size: .8rem; font-weight: 600; line-height: 1; letter-spacing: -.02em; padding-right: 10px; border-right: 1px solid var(--line-strong); }
  .figure-corner { display: none; }
  .figure-reference-caption { font-size: .59rem; }
  .zero-trust-principles { padding: 22px 20px; margin-bottom: 25px; }
  .principles-intro h2 { font-size: 1.2rem; }
  .principles-list { grid-template-columns: 1fr; gap: 17px; margin-top: 20px; }
  .principle-item + .principle-item { border-left: 0; border-top: 1px solid var(--line); padding: 17px 0 0; }
  .principle-item h3 { font-size: .94rem; }
  .principle-item p { font-size: .86rem; }
  .standards-reference { font-size: .7rem; }
  .section-nav { min-height: 57px; gap: 0; justify-content: space-between; }
  .section-nav-link { gap: 5px; font-size: .58rem; }
  .nav-index { font-size: .5rem; }
  h2 { font-size: 1.7rem; }
  .section-eyebrow { font-size: .56rem; }
  .section-description { font-size: .92rem; }
  .map-note { font-size: .68rem; }
  .view-filters { display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px; }
  .filter-button { font-size: .71rem; padding: 11px 8px; }
  .search-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
  .search-field { grid-column: 1 / -1; }
  .search-field input { font-size: .83rem; padding-block: 13px; }
  .visible-count { font-size: .68rem; }
  .reset-button { border-left: 0; padding: 0; min-height: 35px; font-size: .69rem; }
  .map-toolbar { margin-bottom: 22px; }
  .domain-grid { grid-template-columns: 1fr; gap: 28px; }
  .zone-heading { min-height: 0; padding-bottom: 15px; }
  .zone-chip { font-size: .55rem; }
  .zone-heading h3 { font-size: 1.3rem; margin-top: 9px; }
  .zone-heading p { font-size: .74rem; }
  .zone-cards { grid-template-rows: auto; gap: 12px; }
  .domain-card { min-height: 0; padding: 20px 21px 0; }
  .card-topline { margin-bottom: 16px; }
  .domain-title { font-size: 1.2rem; margin-bottom: 17px; }
  .domain-controls { font-size: 1rem; gap: 10px; }
  .card-footer { font-size: .7rem; padding-block: 14px; }
  .domain-controls > span { padding-left: 13px; }
  .map-footnote { font-size: .69rem; margin-top: 20px; }
  .detail-panel { display: block; }
  .detail-intro { padding: 23px 22px; }
  .detail-intro h2 { font-size: 1.8rem; }
  #detail-summary { font-size: .98rem; }
  .detail-body { padding: 0 22px 25px; }
  .detail-section-label { font-size: .61rem; }
  .detail-controls > * { padding: 16px; }
  .detail-controls h3, .detail-controls h4, .detail-controls strong { font-size: .99rem; }
  .detail-controls p, .detail-controls .control-description, .detail-controls .control-explanation { font-size: .92rem; }
  .detail-enforcement button { font-size: .85rem; padding: 12px; }
  #detail-risk { font-size: .92rem; }
  .checkpoint-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .checkpoint-button { min-height: 186px; padding: 17px 15px 23px; }
  .checkpoint-button:last-child { grid-column: 1 / -1; min-height: 150px; }
  .checkpoint-topline { margin-bottom: 19px; }
  .checkpoint-caption { font-size: .72rem; }
  .checkpoint-button strong { font-size: 1.07rem; }
  .walkthrough-bar { padding: 19px 17px; }
  .walkthrough-actions { justify-content: flex-start; flex-wrap: wrap; gap: 7px; }
  .walkthrough-actions .primary-button, .walkthrough-actions .secondary-button { flex: 1; font-size: .71rem; padding-inline: 10px; }
  .walkthrough-actions .icon-button { margin-left: 0; }
  #step-description { font-size: .93rem; }
  .enforcement-section { padding-bottom: 35px; }
  .risk-section { padding: 23px 21px 0; }
  .risk-header { gap: 12px; }
  .risk-icon { width: 30px; height: 30px; border-radius: 5px; flex: 0 0 30px; }
  .risk-icon [data-icon] { width: 19px; height: 19px; flex-basis: 19px; }
  .risk-header h2 { font-size: 1.52rem; }
  .risk-header .eyebrow { font-size: .54rem; }
  .risk-grid { grid-template-columns: 1fr; gap: 22px; margin-top: 27px; }
  .risk-item + .risk-item { border-left: 0; border-top: 1px solid #e8ded3; padding: 21px 0 0; }
  .risk-number { font-size: .62rem; }
  .risk-item h3 { max-width: none; font-size: 1.1rem; }
  .risk-item p { font-size: .96rem; }
  .risk-bottom-note { font-size: .85rem; padding-block: 19px; }
  .site-footer { flex-direction: column; gap: 24px; margin-top: 8px; padding-top: 29px; padding-bottom: 29px; }
  .site-footer p { font-size: .73rem; }
  .footer-source { text-align: left; }
  .footer-source .eyebrow { font-size: .6rem; }
  .footer-source a { font-size: .73rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .domain-card:hover { transform: none; }
}

@media print {
  @page { margin: 15mm; }
  :root { font-size: 11px; }
  html { scroll-padding-top: 0; }
  body { color: #243a50; background: white; }
  .page-width { width: 100%; max-width: none; }
  .site-header { position: static; background: white; }
  .topbar { min-height: 54px; flex-wrap: nowrap; padding: 0; }
  .brand { font-size: 23px; }
  .header-eyebrow, .header-actions, .skip-link, .section-nav, .map-toolbar, .card-footer, .detail-close, #start-walkthrough, #walkthrough-bar { display: none !important; }
  .reference-badge { margin-left: auto; width: auto; order: initial; font-size: 8px; }
  .hero { padding: 26px 0; }
  h1 { font-size: 45px; }
  .figure-reference { display: block; flex-basis: 150px; padding-left: 20px; margin: 0; border-left: 1px solid var(--line); }
  .figure-number { font-size: 52px; border: 0; padding: 0; }
  .hero-description { font-size: 13px; }
  h2 { font-size: 24px; }
  .zero-trust-principles { padding: 18px; margin-bottom: 20px; break-inside: avoid; }
  .principles-list { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
  .principle-item + .principle-item { border-top: 0; border-left: 1px solid var(--line); padding: 0 0 0 16px; }
  .architecture-section { padding-top: 20px; }
  .architecture-heading { display: flex; }
  .architecture-layout { display: block; }
  .domain-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 13px; }
  .zone-column, .domain-card.is-dimmed, .zone-column.is-dimmed { display: flex !important; }
  .zone-heading { min-height: 83px; }
  .domain-card[hidden] { display: flex !important; }
  #no-results { display: none !important; }
  .zone-cards { grid-template-rows: repeat(2, 1fr); }
  .domain-card, .domain-card.is-selected, .domain-card.is-connected { min-height: 195px; padding: 14px; background: white; box-shadow: none; border: 1px solid #becbd6; break-inside: avoid; transform: none; }
  .domain-title { font-size: 14px; }
  .domain-controls { font-size: 11px; gap: 8px; padding: 0; }
  .card-topline { margin-bottom: 14px; }
  .zone-chip { font-size: 7px; }
  .zone-heading h3 { font-size: 15px; }
  .zone-heading p { font-size: 9px; }
  .selected-indicator { display: none !important; }
  .is-selected .domain-number { display: inline; }
  .detail-panel { position: static; display: block; margin-top: 25px; background: #f4f6f8; break-inside: avoid; }
  .detail-panel-label { padding: 12px 20px; }
  .detail-intro { padding: 20px; }
  .detail-body { padding: 0 20px 20px; }
  .detail-controls { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .detail-enforcement-section, .detail-risk-section { margin-top: 16px; }
  .enforcement-section { margin-top: 28px; padding-top: 25px; padding-bottom: 28px; }
  .enforcement-section .section-heading { display: block; }
  .checkpoint-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 9px; }
  .checkpoint-button, .checkpoint-button:last-child { min-height: 125px; grid-column: auto; padding: 13px; box-shadow: none; background: white; }
  .checkpoint-button strong { font-size: 12px; }
  .checkpoint-caption { font-size: 9px; }
  .checkpoint-arrow { display: none; }
  .checkpoint-topline { margin-bottom: 13px; }
  .risk-section { padding: 22px 23px 0; break-inside: avoid; }
  .risk-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; margin-block: 24px; }
  .risk-item + .risk-item { border-top: 0; border-left: 1px solid #e8ded3; padding: 0 0 0 22px; }
  .risk-item h3 { font-size: 13px; }
  .risk-item p { font-size: 11px; }
  .risk-bottom-note { font-size: 10px; }
  .site-footer { flex-direction: row; padding-top: 22px; margin-top: 10px; }
  .footer-source { text-align: right; }
  .site-footer p { font-size: 9px; }
  button, a { color: inherit; }
}