/* Iteration 2: case-study depth, operating model, and accessibility polish. */

main section[id] {
  scroll-margin-top: 92px;
}

.site-nav > a[aria-current="location"]:not(.nav-cta) {
  color: #fff;
}

.site-nav > a[aria-current="location"]:not(.nav-cta)::after {
  transform: scaleX(1);
  transform-origin: left;
}

.site-nav > .nav-cta[aria-current="location"] {
  box-shadow: 0 0 0 3px rgba(200, 255, 77, 0.24);
}

.theme-toggle[aria-pressed="true"] {
  border-color: rgba(200, 255, 77, 0.58);
}

.kpi-card > p:last-child {
  max-width: 20ch;
  line-height: 1.35;
}

.project-body > div:last-child {
  min-width: 0;
}

.project-body p,
.project-body dd,
.project-link {
  overflow-wrap: anywhere;
}

.case-note {
  margin-top: 26px;
  color: #fff;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.case-note summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  color: rgba(255, 255, 255, 0.82);
  cursor: pointer;
  font-size: 0.68rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  list-style: none;
  text-transform: uppercase;
}

.case-note summary::-webkit-details-marker {
  display: none;
}

.case-note summary span {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  color: #071114;
  background: var(--lime);
  border-radius: 50%;
  font-size: 1rem;
  transition: transform 180ms ease;
}

.case-note[open] summary span {
  transform: rotate(45deg);
}

.case-note-grid {
  display: grid;
  gap: 16px;
  padding: 4px 0 24px;
  margin: 0;
}

.project-featured .case-note-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.case-note-grid div {
  padding: 16px;
  background: rgba(255, 255, 255, 0.035);
  border-left: 2px solid rgba(97, 215, 255, 0.55);
}

.case-note-grid dt {
  margin-bottom: 7px;
  color: var(--cyan);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.62rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.case-note-grid dd {
  margin: 0;
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.9rem;
  line-height: 1.5;
}

.project-body .case-scope {
  margin: -8px 0 22px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.72rem;
  font-style: italic;
}

.project-link {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  margin-top: 22px;
  color: var(--lime);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-link::after {
  width: 22px;
  height: 1px;
  content: "";
  background: currentColor;
  transition: width 180ms ease;
}

.project-link:hover::after,
.project-link:focus-visible::after {
  width: 38px;
}

.method {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 86% 14%, rgba(97, 215, 255, 0.12), transparent 27%),
    linear-gradient(135deg, color-mix(in srgb, var(--paper-2) 82%, var(--paper)), var(--paper));
}

.method::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image:
    linear-gradient(color-mix(in srgb, var(--ink) 5%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--ink) 5%, transparent) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, transparent, #000 18%, #000 78%, transparent);
  pointer-events: none;
}

.method .page-shell {
  position: relative;
}

.method .evidence-lens {
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
}

.system-map {
  display: block;
  width: 100%;
  max-width: 500px;
  margin-top: 34px;
  overflow: visible;
}

.map-rail {
  fill: none;
  stroke: rgba(255, 255, 255, 0.2);
  stroke-dasharray: 5 8;
  stroke-width: 2;
}

.map-node circle {
  fill: #0a181b;
  stroke: rgba(255, 255, 255, 0.28);
  stroke-width: 2;
  transition: fill 220ms ease, stroke 220ms ease, transform 220ms ease;
}

.map-node > text:not(.map-label) {
  fill: rgba(255, 255, 255, 0.62);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 12px;
  font-weight: 800;
  text-anchor: middle;
}

.map-node .map-label {
  fill: rgba(255, 255, 255, 0.58);
  font-family: var(--body);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-anchor: middle;
  text-transform: uppercase;
  transition: fill 220ms ease;
}

.system-map[data-active-lens="govern"] [data-map-node="govern"] circle,
.system-map[data-active-lens="observe"] [data-map-node="observe"] circle,
.system-map[data-active-lens="verify"] [data-map-node="verify"] circle,
.system-map[data-active-lens="sustain"] [data-map-node="sustain"] circle {
  fill: var(--lime);
  stroke: var(--lime);
  transform: scale(1.12);
}

.system-map[data-active-lens="govern"] [data-map-node="govern"] > text:not(.map-label),
.system-map[data-active-lens="observe"] [data-map-node="observe"] > text:not(.map-label),
.system-map[data-active-lens="verify"] [data-map-node="verify"] > text:not(.map-label),
.system-map[data-active-lens="sustain"] [data-map-node="sustain"] > text:not(.map-label) {
  fill: #071114;
}

.system-map[data-active-lens="govern"] [data-map-node="govern"] .map-label,
.system-map[data-active-lens="observe"] [data-map-node="observe"] .map-label,
.system-map[data-active-lens="verify"] [data-map-node="verify"] .map-label,
.system-map[data-active-lens="sustain"] [data-map-node="sustain"] .map-label {
  fill: var(--lime);
}

.method .lens-tabs {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.lens-value {
  display: grid;
  gap: 6px;
  padding: 17px 18px;
  margin: 30px 0 20px;
  background: rgba(97, 215, 255, 0.06);
  border-left: 2px solid var(--cyan);
}

.lens-value span {
  color: var(--cyan);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.6rem;
  font-weight: 850;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.lens-value strong {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  font-weight: 650;
}

@media (max-width: 1050px) {
  .site-nav {
    height: 100vh;
    height: 100dvh;
  }

  .site-nav > a[aria-current="location"]:not(.nav-cta) {
    color: var(--lime);
  }
}

@media (max-width: 760px) {
  main section[id] {
    scroll-margin-top: 76px;
  }

  .map-node > text:not(.map-label) {
    font-size: 22px;
  }

  .map-node .map-label {
    font-size: 20px;
    letter-spacing: 0.04em;
  }

  .method .evidence-lens {
    grid-template-columns: 1fr;
  }

  .system-map {
    margin-top: 22px;
  }

  .project-featured .case-note-grid {
    grid-template-columns: 1fr;
  }

  .case-note-grid dd {
    font-size: 0.85rem;
  }
}

@media (max-width: 430px) {
  .method .lens-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .method .lens-tabs button:nth-child(2) {
    border-right: 0;
  }

  .method .lens-tabs button:nth-child(-n + 2) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.17);
  }

  .case-note-grid div {
    padding: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .system-map,
  .map-node circle,
  .map-node .map-label,
  .case-note summary span,
  .project-link::after {
    transition: none;
  }
}