/* Battlefield extends the existing companion-page components and exact tokens.
   No shared CSS is changed. All content remains visible without JavaScript. */
.bf-skip-link { position: fixed; top: 8px; left: 16px; z-index: 1100; padding: 12px 18px; background: var(--bg-dark); color: var(--white); transform: translateY(-160%); }
.bf-skip-link:focus { transform: none; outline: 3px solid var(--accent); outline-offset: 3px; }
/* Use the existing navy and light text values for small text with stronger contrast. */
body[data-cw-page="battlefield"] #nav .nav-links > li > a.is-current { color: var(--bg-dark); }
body[data-cw-page="battlefield"] footer .foot-copy, body[data-cw-page="battlefield"] footer .foot-h { color: rgba(255,255,255,.7); }
.os-battlefield [id] { scroll-margin-top: 90px; }
.os-battlefield .section-head { max-width: none; }
.os-battlefield .section-head h2 { max-width: 30ch; }
.os-battlefield .section-head .label { color: var(--bg-dark); }
.os-battlefield #why-now { border-top: 1px solid var(--border); }
.os-battlefield .os-prose + .os-prose { margin-top: 22px; }
.os-battlefield .os-statement { max-width: 48ch; }
.os-battlefield .os-statement + .os-prose { margin-top: 24px; }
.os-battlefield .oc-series small { font-size: inherit; }
.os-battlefield .oc-series-current, .os-battlefield #hero .hero-eyebrow, .os-battlefield .fc-requirements li::before { color: var(--bg-dark); }
.os-battlefield #hero .bf-hero-grid { grid-template-columns: minmax(0,1.1fr) minmax(0,.9fr); align-items: start; }
.os-battlefield #hero .hero-headline { max-width: 22ch; }
.os-battlefield #hero .hero-sub:last-of-type { color: var(--bg-dark); font-size: .98rem; font-weight: 500; margin-bottom: 0; }
.os-battlefield .bf-hero-context { padding-top: 5px; }
.os-battlefield .bf-disclaimer { font-size: .79rem; border-left: 2px solid var(--accent); padding-left: 16px; }
.os-battlefield .bf-hero-image { margin: clamp(30px,4vw,48px) 0 0; }
.os-battlefield .bf-hero-image img { display: block; width: 100%; height: auto; border-radius: 6px; }
.os-battlefield .bf-reader-journeys { grid-template-columns: repeat(2,minmax(0,1fr)); margin-top: 24px; }
.os-battlefield .bf-reader-journeys .label { display: block; color: var(--bg-dark); margin-bottom: 14px; }
.os-battlefield .bf-reader-journeys h2 { font-size: 1.12rem; line-height: 1.4; margin-bottom: 10px; }
.os-battlefield .bf-reader-journeys h2 span { color: var(--accent); }
.os-battlefield .bf-reader-journeys p { max-width: 55ch; }
.os-battlefield .bf-progressions > div { grid-template-columns: minmax(0,.35fr) minmax(0,1.65fr); }
.os-battlefield .bf-progressions .label { color: var(--bg-dark); }
.os-battlefield .bf-concerns { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0 40px; margin: 38px 0 28px; }
.os-battlefield .bf-concerns > div { padding: 24px 0; border-top: 1px solid var(--border); }
.os-battlefield .bf-concerns dt { font: 600 1rem/1.4 var(--f-display); color: var(--bg-dark); margin-bottom: 10px; }
.os-battlefield .bf-concerns dd { font-size: .9rem; line-height: 1.8; color: var(--muted); }
.os-battlefield #operational-challenge .fc-problem-grid + .os-prose { margin-top: 30px; }
.os-battlefield .bf-canonical-requirements { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0 32px; margin: 26px 0 14px; }
.os-battlefield .bf-canonical-requirements + p { margin: 0 0 26px; }
.os-battlefield .bf-text-link { font-size: .87rem; color: var(--bg-dark); text-decoration: underline; text-underline-offset: 4px; text-decoration-color: var(--accent); }
.os-battlefield .bf-stress-test { margin: 36px 0 48px; border: 1px solid var(--border); border-radius: 6px; background: var(--white); }
.os-battlefield .bf-condition-note { padding: 22px 24px; font-size: .85rem; max-width: 88ch; }
.os-battlefield .bf-condition-selectors { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.os-battlefield .bf-condition-selector { display: flex; justify-content: center; align-items: center; min-height: 54px; padding: 16px 10px; font: 600 .74rem/1.5 var(--f-display); letter-spacing: .045em; color: var(--bg-dark); text-decoration: none; border-bottom: 3px solid transparent; }
.os-battlefield .bf-condition-selector + .bf-condition-selector { border-left: 1px solid var(--border); }
.os-battlefield .bf-condition-selector:hover { background: var(--bg-alt); }
.os-battlefield .bf-condition-selector[aria-selected="true"] { background: var(--bg-dark); color: var(--white); border-bottom-color: var(--accent-lt); }
.os-battlefield .bf-condition-selector:focus-visible { outline: 3px solid var(--accent); outline-offset: -5px; }
.os-battlefield .bf-keyboard-hint { padding: 16px 24px 0; font-size: .74rem; margin: 0; }
.os-battlefield .bf-condition-panel { padding: 28px 24px 12px; }
.os-battlefield .bf-condition-panel + .bf-condition-panel { border-top: 1px solid var(--border); }
.os-battlefield .is-enhanced .bf-condition-panel { border-top: 0; }
.os-battlefield .bf-condition-panel:focus-visible { outline: 3px solid var(--accent); outline-offset: -5px; }
.os-battlefield .bf-condition-heading { max-width: 75ch; margin-bottom: 24px; }
.os-battlefield .bf-condition-heading h3 { font-size: 1rem; letter-spacing: .04em; color: var(--bg-dark); margin-bottom: 12px; }
.os-battlefield .bf-condition-heading p { font-size: .9rem; }
.os-battlefield .bf-condition-requirements { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0 36px; list-style: none; counter-reset: bf-condition; }
.os-battlefield .bf-condition-requirements li { position: relative; counter-increment: bf-condition; border-top: 1px solid var(--border); padding: 22px 0 22px 32px; }
.os-battlefield .bf-condition-requirements li::before { content: counter(bf-condition,decimal-leading-zero); position: absolute; left: 0; top: 23px; font: 600 .68rem/1.5 var(--f-display); color: var(--muted); }
.os-battlefield .bf-condition-requirements h4 { font-size: .96rem; color: var(--bg-dark); line-height: 1.4; letter-spacing: -.01em; margin-bottom: 10px; }
.os-battlefield .bf-condition-requirements p { font-size: .87rem; line-height: 1.8; }
.os-battlefield .cw-contribution > h3 { color: var(--bg-dark); margin: 0 0 20px; font-size: 1.35rem; }
.os-battlefield .cw-contribution > .label { display: block; color: var(--bg-dark); margin-bottom: 14px; }
.os-battlefield .bf-observations { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 28px 40px; }
.os-battlefield .bf-observations h4 { font-size: 1.05rem; line-height: 1.4; color: var(--bg-dark); margin-bottom: 10px; }
.os-battlefield .bf-observations p { font-size: .9rem; }
.os-battlefield .bf-stressor { border-left: 2px solid var(--accent); padding: 0 0 0 26px; margin: 40px 0; max-width: 88ch; }
.os-battlefield .bf-stressor > .label { display: block; color: var(--bg-dark); margin-bottom: 16px; }
.os-battlefield .bf-stressor h3 { color: var(--bg-dark); font-size: 1.3rem; margin-bottom: 16px; }
.os-battlefield .bf-list { padding-left: 20px; margin: 18px 0 24px; max-width: 85ch; }
.os-battlefield .bf-list li { font-size: .9rem; color: var(--muted); line-height: 1.8; padding-left: 4px; }
.os-battlefield .bf-list li + li { margin-top: 12px; }
.os-battlefield .bf-list li::marker { color: var(--accent); }
.os-battlefield .bf-card-lead { font-weight: 500; color: var(--bg-dark); }
.os-battlefield .cf-capability-cards .label { color: var(--bg-dark); }
.os-battlefield .cf-functional { margin: 38px 0; }
.os-battlefield .bf-boundaries { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 28px; margin: 28px 0; }
.os-battlefield .bf-boundaries h4 { font-size: 1rem; color: var(--bg-dark); margin-bottom: 12px; }
.os-battlefield .bf-boundaries p { font-size: .9rem; }
.os-battlefield #human-participation .fc-human-layout + .os-prose { margin-top: 28px; }
.os-battlefield #operational-experience { padding: var(--section) 0; }
.os-battlefield #operational-experience h2 { font-size: clamp(1.7rem,3vw,2.6rem); line-height: 1.12; max-width: 30ch; }
.os-battlefield #operational-experience .section-head { margin-bottom: 32px; }
.os-battlefield #operational-experience .label { color: var(--white); }
.os-battlefield #operational-experience .os-prose p, .os-battlefield .bf-learning-figure figcaption { color: #ccd6df; }
.os-battlefield #operational-experience .os-statement { color: var(--white); }
.os-battlefield .bf-original-loop { font: 500 1rem/1.7 var(--f-display); color: #ccd6df; margin: 18px 0 28px; }
.os-battlefield .bf-learning-figure { margin: 30px 0 36px; }
.os-battlefield .bf-learning-loop { display: grid; grid-template-columns: repeat(6,minmax(0,1fr)); gap: 18px; }
.os-battlefield .bf-learning-loop li { display: flex; gap: 12px; align-items: center; justify-content: space-between; padding: 16px 0; border-top: 1px solid #7e98ad; }
.os-battlefield .bf-learning-loop .os-node { font-size: .9rem; color: var(--white); }
.os-battlefield .bf-learning-loop .os-arrow { color: var(--accent-lt); }
.os-battlefield .bf-learning-loop .bf-authorisation-gate { border: 1px solid var(--accent-lt); padding: 15px 12px; }
.os-battlefield .bf-authorisation-gate .os-node { color: #ffb18c; }
.os-battlefield .bf-loop-return { border-bottom: 1px solid #7e98ad; border-left: 1px solid #7e98ad; border-right: 1px solid #7e98ad; border-radius: 0 0 16px 16px; height: 25px; margin: 0 12px 20px; color: var(--accent-lt); line-height: .5; }
.os-battlefield .bf-learning-figure figcaption { font-size: .79rem; max-width: 80ch; }
.os-battlefield .bf-series-cards .route:has(a):hover { border-color: var(--accent); }
.os-battlefield .bf-series-current { border-top: 3px solid var(--accent); }
.os-battlefield .bf-current-label { display: block; color: var(--bg-dark); font: 600 .75rem/1.5 var(--f-display); margin-top: 18px; }
.os-battlefield #related-thinking .bf-related-routes { grid-template-columns: repeat(3,minmax(0,1fr)); }
.os-battlefield #related-thinking .rt { color: var(--bg-dark); }
.os-battlefield #final-cta h2 { max-width: 24ch; }
.os-battlefield .bf-closing-line { color: var(--white); font: 600 1.12rem/1.6 var(--f-display); }
.os-battlefield #final-cta .bf-final-note { font-size: .8rem; margin-top: 28px; color: #ccd6df; }
.os-battlefield .cw-actions a:first-child { background: var(--white); border-color: var(--white); color: var(--bg-dark); }
.bf-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
@media(max-width:1024px) {
  .os-battlefield .bf-learning-loop { grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px 24px; }
  .os-battlefield #related-thinking .bf-related-routes { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media(max-width:860px) {
  .os-battlefield #hero .bf-hero-grid, .os-battlefield .bf-reader-journeys { grid-template-columns: 1fr; gap: 26px; }
  .os-battlefield #hero .hero-headline { max-width: 23ch; }
  .os-battlefield .bf-boundaries { grid-template-columns: 1fr; }
  .os-battlefield .bf-condition-requirements { grid-template-columns: 1fr; }
  .os-battlefield .bf-observations { grid-template-columns: 1fr; }
  .os-battlefield #related-thinking .bf-related-routes { grid-template-columns: 1fr; }
}
@media(max-width:560px) {
  .os-battlefield #hero .hero-headline { font-size: clamp(2rem,8.2vw,2.75rem); }
  .os-battlefield .bf-concerns, .os-battlefield .bf-canonical-requirements { grid-template-columns: 1fr; }
  .os-battlefield .bf-progressions > div { grid-template-columns: 1fr; gap: 12px; }
  .os-battlefield .bf-condition-selectors { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .os-battlefield .bf-condition-selector { font-size: .73rem; }
  .os-battlefield .bf-condition-selector:nth-child(3) { border-left: 0; }
  .os-battlefield .bf-condition-selector:nth-child(n+3) { border-top: 1px solid var(--border); }
  .os-battlefield .bf-condition-note { padding: 20px 18px; }
  .os-battlefield .bf-keyboard-hint { padding: 16px 18px 0; }
  .os-battlefield .bf-condition-panel { padding: 24px 18px 4px; }
  .os-battlefield .bf-condition-requirements li { padding-left: 28px; }
  .os-battlefield .bf-stressor, .os-battlefield .fc-human-needs { padding-left: 20px; }
  .os-battlefield .bf-learning-loop { grid-template-columns: 1fr; gap: 4px; }
  .os-battlefield .bf-learning-loop li { min-height: 50px; }
  .os-battlefield .bf-learning-loop .os-arrow { transform: rotate(90deg); }
  .os-battlefield .bf-loop-return { margin-bottom: 24px; }
}
@media print {
  #nav, .bf-skip-link, .os-battlefield .bf-reader-journeys, .os-battlefield .bf-condition-selectors, .os-battlefield .bf-keyboard-hint, .cw-actions { display: none !important; }
  .os-battlefield .bf-condition-panel[hidden] { display: block !important; }
  .os-battlefield .bf-condition-panel { break-before: page; }
  .os-battlefield .bf-condition-requirements li { break-inside: avoid; }
  .os-battlefield [id] { scroll-margin-top: 0; }
}

/* Section 04: extend City's existing qualitative scales to three scenarios.
   Positions retain the Factory/City references; none represents a measured score. */
.os-battlefield .bf-comparison .bf-profile-heading { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 28px; margin-bottom: 14px; }
.os-battlefield .bf-comparison .fx-profile-label { margin-bottom: 0; }
.os-battlefield .bf-profile-legend { display: flex; flex-wrap: wrap; gap: 12px 22px; list-style: none; margin: 0; padding: 0; }
.os-battlefield .bf-profile-legend li { display: inline-flex; align-items: center; gap: 9px; font: 600 .75rem/1.5 var(--f-display); color: var(--bg-dark); }
.os-battlefield .bf-profile-legend i { display: inline-block; width: 12px; height: 12px; flex: none; }
.os-battlefield .bf-legend-factory { border: 2px solid var(--muted); border-radius: 50%; background: var(--bg-alt); }
.os-battlefield .bf-legend-city { background: var(--bg-dark); border-radius: 1px; }
.os-battlefield .bf-legend-battlefield { background: var(--accent); transform: rotate(45deg); }
.os-battlefield .bf-comparison .bf-range-note { max-width: 86ch; font-size: .79rem; line-height: 1.7; margin: 0 0 26px; }
.os-battlefield .bf-comparison .fx-axis-title h3 { color: var(--bg-dark); }
.os-battlefield .bf-comparison .fx-axis-track { height: 70px; margin: 8px 0 14px; }
.os-battlefield .bf-comparison .fx-axis-track::before { top: 33px; }
.os-battlefield .bf-comparison .oc-axis-ref { position: absolute; top: 5px; left: var(--oc-ref); transform: translateX(-50%); width: 13px; height: 13px; border: 2px solid var(--muted); background: var(--bg-alt); border-radius: 50%; }
.os-battlefield .bf-comparison .oc-axis-ref::after { content: ''; position: absolute; left: calc(50% - .5px); top: 100%; height: 18px; width: 1px; background: var(--muted); }
.os-battlefield .bf-comparison .fx-axis-position { top: 27px; width: 13px; height: 13px; border: 0; border-radius: 1px; background: var(--bg-dark); box-shadow: none; }
.os-battlefield .bf-comparison .bf-axis-position { position: absolute; top: 51px; left: var(--bf-position); transform: translateX(-50%); width: 14px; height: 14px; }
.os-battlefield .bf-comparison .bf-axis-position::before { content: ''; position: absolute; inset: 2px; transform: rotate(45deg); background: var(--accent); }
.os-battlefield .bf-comparison .bf-axis-position::after { content: ''; position: absolute; left: calc(50% - .5px); top: -17px; height: 17px; width: 1px; background: var(--accent); }
.os-battlefield .bf-comparison .oc-axis-range { position: absolute; top: 31px; height: 6px; left: var(--oc-from); right: calc(100% - var(--fx-profile-position)); background: var(--bg-dark); opacity: .28; border-radius: 3px; }
.os-battlefield .bf-profile-copy { margin: 0; }
.os-battlefield .bf-profile-copy > div { display: grid; grid-template-columns: 80px minmax(0,1fr); gap: 12px; margin: 0 0 10px; }
.os-battlefield .bf-profile-copy dt { font: 600 .82rem/1.7 var(--f-display); color: var(--bg-dark); }
.os-battlefield .bf-profile-copy dd { font-size: .84rem; line-height: 1.7; color: var(--muted); }
.os-battlefield .bf-comparison .bf-profile-explanation { margin: 18px 0 0; font-size: .84rem; line-height: 1.8; }
.os-battlefield .bf-comparison figcaption { max-width: 90ch; padding-top: 20px; border-top: 1px solid var(--border); font-size: .79rem; line-height: 1.75; color: var(--muted); }
.os-battlefield .bf-comparison-reading { margin: 34px 0 42px; }
.os-battlefield .bf-comparison-reading h3 { font-size: 1.25rem; line-height: 1.35; color: var(--bg-dark); margin-bottom: 20px; }
@media(max-width:560px) {
  .os-battlefield .bf-comparison .bf-profile-heading { display: block; }
  .os-battlefield .bf-profile-legend { gap: 10px 18px; margin-top: 16px; }
  .os-battlefield .bf-profile-legend li { font-size: .72rem; }
  .os-battlefield .bf-profile-copy > div { grid-template-columns: 76px minmax(0,1fr); gap: 10px; }
  .os-battlefield .bf-profile-copy dd, .os-battlefield .bf-comparison .bf-profile-explanation { font-size: .88rem; }
  .os-battlefield .bf-comparison .bf-range-note, .os-battlefield .bf-comparison figcaption { font-size: .8rem; }
}