:root {
  color-scheme: dark;
  --ink-950: #080c0f;
  --ink-900: #0d1318;
  --ink-850: #121a20;
  --ink-800: #172129;
  --line: #293944;
  --text: #edf3f5;
  --muted: #a8b7be;
  --signal: #f1a85b;
  --signal-soft: #3a291a;
  --status: #65d4dc;
  --status-soft: #153136;
  --verified: #a8db8f;
  --verified-soft: #1d3321;
  --next: #c2b7ee;
  --next-soft: #292442;
  --shadow: 0 24px 70px rgb(0 0 0 / 24%);
  --radius: 1rem;
  --max: 72rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 18rem;
  margin: 0;
  background:
    linear-gradient(rgb(101 212 220 / 4%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(101 212 220 / 4%) 1px, transparent 1px),
    var(--ink-950);
  background-size: 3rem 3rem;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.7;
}

a {
  color: var(--status);
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--text);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 4px;
}

img,
svg {
  display: block;
  max-width: 100%;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.65rem 0.9rem;
  transform: translateY(-180%);
  border-radius: 0.5rem;
  background: var(--signal);
  color: var(--ink-950);
  font-weight: 800;
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(calc(100% - 2rem), var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgb(101 212 220 / 18%);
  background: rgb(8 12 15 / 92%);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  min-height: 4.5rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
}

.brand {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

.brand::before {
  color: var(--signal);
  content: "[";
}

.brand::after {
  color: var(--status);
  content: "]";
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.5rem 0.7rem;
  border-radius: 0.4rem;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--ink-800);
  color: var(--text);
}

main {
  overflow-x: clip;
  overflow-y: visible;
}

.hero {
  position: relative;
  padding-block: clamp(5rem, 11vw, 8rem);
}

.hero::after {
  position: absolute;
  top: 12%;
  right: max(-8rem, -8vw);
  width: 23rem;
  height: 23rem;
  border: 1px solid rgb(101 212 220 / 18%);
  border-radius: 50%;
  box-shadow:
    0 0 0 3rem rgb(101 212 220 / 3%),
    0 0 0 7rem rgb(241 168 91 / 2%);
  content: "";
  pointer-events: none;
}

.eyebrow,
.data-label {
  color: var(--status);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.eyebrow::before {
  margin-right: 0.55rem;
  color: var(--signal);
  content: "//";
}

h1,
h2,
h3 {
  margin-top: 0;
  color: var(--text);
  line-height: 1.15;
  text-wrap: balance;
}

h1 {
  max-width: 16ch;
  margin-bottom: 1.4rem;
  font-size: clamp(2.6rem, 7vw, 4.8rem);
  letter-spacing: -0.045em;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(1.65rem, 3vw, 2.4rem);
  letter-spacing: -0.025em;
}

h3 {
  margin-bottom: 0.65rem;
  font-size: 1.15rem;
}

.lede {
  max-width: 44rem;
  margin-bottom: 2rem;
  color: #cbd6da;
  font-size: clamp(1.08rem, 2vw, 1.28rem);
}

.role-line {
  max-width: 48rem;
  margin-block: -0.35rem 1rem;
  color: var(--signal);
  font-weight: 800;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  min-height: 2.9rem;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1rem;
  border: 1px solid var(--signal);
  border-radius: 0.45rem;
  background: var(--signal);
  color: var(--ink-950);
  font-weight: 850;
  text-decoration: none;
}

.button:hover {
  background: transparent;
  color: var(--signal);
}

.button.secondary {
  border-color: var(--line);
  background: var(--ink-850);
  color: var(--text);
}

.button.secondary:hover {
  border-color: var(--status);
  color: var(--status);
}

.section {
  padding-block: clamp(3.5rem, 8vw, 6rem);
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(16rem, 0.65fr);
  gap: 2rem;
  align-items: end;
  margin-bottom: 2rem;
}

.section-heading p {
  margin: 0;
  color: var(--muted);
}

.metrics,
.case-grid,
.principles {
  display: grid;
  gap: 1rem;
}

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

.metric {
  padding: 1.3rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--ink-850), var(--ink-900));
}

.metric strong {
  display: block;
  margin-block: 0.2rem 0.45rem;
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: clamp(1.55rem, 4vw, 2.25rem);
}

.metric > span:not(.data-label):not(.verification-date) {
  color: var(--muted);
  font-size: 0.9rem;
}

.verification-date {
  display: block;
  margin-top: 0.75rem;
  color: var(--verified);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.75rem;
  font-weight: 800;
}

.topology {
  padding: clamp(1rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-900);
  box-shadow: var(--shadow);
}

.topology figcaption {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

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

.case-card {
  display: flex;
  min-height: 19rem;
  flex-direction: column;
  padding: clamp(1.3rem, 3vw, 1.8rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgb(23 33 41 / 96%), rgb(13 19 24 / 96%));
  box-shadow: 0 14px 35px rgb(0 0 0 / 15%);
}

.case-card:hover {
  border-color: rgb(101 212 220 / 55%);
}

.case-card p {
  color: var(--muted);
}

.case-card .card-link {
  margin-top: auto;
  font-weight: 800;
}

.status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.1rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 1.75rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.chip.verified {
  background: var(--verified-soft);
  color: var(--verified);
}

.chip.progress {
  background: var(--status-soft);
  color: var(--status);
}

.chip.next {
  background: var(--next-soft);
  color: var(--next);
}

.principles {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.principle {
  padding-top: 1rem;
  border-top: 2px solid var(--signal);
}

.principle p {
  color: var(--muted);
}

.site-footer {
  padding-block: 2.5rem;
  border-top: 1px solid var(--line);
  background: var(--ink-900);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer-inner p {
  max-width: 36rem;
  margin: 0;
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-weight: 800;
}

/* Professional profile */
.case-hero.profile-hero h1 {
  max-width: 22ch;
}

.capability-grid,
.profile-case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.capability-card,
.profile-case-card {
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(150deg, var(--ink-850), var(--ink-900));
}

.capability-card p,
.profile-case-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.capability-card .status-row {
  margin-bottom: 0.85rem;
}

.profile-case-card {
  display: flex;
  flex-direction: column;
}

.profile-case-card a {
  margin-top: auto;
  font-weight: 800;
}

/* Case studies */
.case-hero {
  padding-block: clamp(4rem, 9vw, 7rem) 3.5rem;
  border-bottom: 1px solid var(--line);
}

.case-hero h1 {
  max-width: 20ch;
  font-size: clamp(2.35rem, 6vw, 4.25rem);
}

.case-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 2.5rem;
}

.case-meta div {
  padding: 1rem;
  border-left: 2px solid var(--status);
  background: var(--ink-900);
}

.case-meta dt {
  margin-bottom: 0.3rem;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.case-meta dd {
  margin: 0;
  font-weight: 750;
}

.case-layout {
  display: grid;
  grid-template-columns: 13rem minmax(0, 1fr);
  gap: clamp(2rem, 7vw, 6rem);
  padding-block: 4rem 6rem;
}

.case-toc {
  position: sticky;
  top: 6.5rem;
  align-self: start;
}

.case-toc p {
  margin-top: 0;
}

.case-toc ol {
  margin: 0;
  padding-left: 1.2rem;
}

.case-toc li {
  margin-bottom: 0.55rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.case-toc a {
  display: block;
  min-height: 1.5rem;
  color: inherit;
  text-decoration: none;
}

.case-toc a:hover {
  color: var(--status);
}

.case-content section {
  scroll-margin-top: 6rem;
  margin-bottom: 3.5rem;
}

.executive-summary {
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid rgb(101 212 220 / 45%);
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--ink-850), var(--ink-900));
}

.executive-summary dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
}

.executive-summary div {
  padding-top: 0.75rem;
  border-top: 1px solid var(--line);
}

.executive-summary dt {
  color: var(--status);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.executive-summary dd {
  margin: 0.25rem 0 0;
  color: #c4d0d5;
}

.case-content p,
.case-content li {
  color: #c4d0d5;
}

.case-content ul {
  padding-left: 1.25rem;
}

.case-content li + li {
  margin-top: 0.5rem;
}

.decision-list {
  display: grid;
  gap: 0.75rem;
  padding: 0 !important;
  list-style: none;
}

.decision-list li {
  padding: 1rem 1.1rem;
  border-left: 3px solid var(--signal);
  background: var(--ink-900);
}

.evidence {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.evidence div {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  background: var(--ink-850);
}

.evidence strong {
  display: block;
  color: var(--verified);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
  text-transform: uppercase;
}

.callout {
  padding: 1.25rem;
  border: 1px solid rgb(241 168 91 / 40%);
  border-radius: 0.7rem;
  background: var(--signal-soft);
}

.callout p:last-child {
  margin-bottom: 0;
}

.next-case {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-850);
  text-decoration: none;
}

.next-case span:first-child {
  color: var(--muted);
  font-size: 0.85rem;
}

.next-case strong {
  display: block;
  color: var(--text);
  font-size: 1.1rem;
}

@media (max-width: 52rem) {
  .header-inner,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 0.8rem;
  }

  .site-header {
    position: static;
  }

  .site-nav ul {
    justify-content: flex-start;
  }

  .site-nav {
    width: 100%;
  }

  .section-heading,
  .case-layout {
    grid-template-columns: 1fr;
  }

  .metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .capability-grid,
  .profile-case-grid {
    grid-template-columns: 1fr;
  }

  .case-toc {
    position: static;
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: 0.7rem;
    background: var(--ink-900);
  }
}

@media (max-width: 38rem) {
  body {
    background-size: 2rem 2rem;
  }

  .hero::after {
    display: none;
  }

  .metrics,
  .case-grid,
  .principles,
  .case-meta,
  .evidence,
  .executive-summary dl {
    grid-template-columns: 1fr;
  }

  .site-nav a {
    padding-inline: 0.55rem;
  }

  .case-card {
    min-height: 0;
  }

  .next-case {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  :root {
    color-scheme: light;
  }

  body {
    background: #fff;
    color: #111;
    font-size: 10.5pt;
  }

  .site-header,
  .site-footer,
  .case-toc,
  .next-case,
  .skip-link {
    display: none;
  }

  main,
  .case-content {
    overflow: visible;
  }

  .case-layout {
    display: block;
    padding-block: 1.5rem;
  }

  h1,
  h2,
  h3,
  .case-meta dd {
    color: #111;
  }

  .case-content p,
  .case-content li,
  .case-meta dt {
    color: #333;
  }

  .case-content section {
    break-inside: avoid;
  }

  .case-meta div,
  .decision-list li,
  .evidence div,
  .executive-summary,
  .capability-card,
  .profile-case-card,
  .callout {
    border-color: #777;
    background: #fff;
  }

  a {
    color: #111;
    text-decoration: none;
  }
}