:root {
  --color-bg: #f2f2f2;
  --color-surface: #e4e4e1;
  --color-ink: #161616;
  --color-muted: #4b4b4b;
  --color-line: #161616;
  --color-accent: #ff4b2b;
  --color-accent-ink: #161616;
  --font-body: "Aptos", "Avenir Next", "Segoe UI", sans-serif;
  --font-mono: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  --rail-width: clamp(15rem, 20vw, 21rem);
  --outer-gap: clamp(1rem, 3vw, 2rem);
  --section-pad: clamp(3.5rem, 8vw, 6rem);
  --radius: 0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #171717;
    --color-surface: #252525;
    --color-ink: #eeeeee;
    --color-muted: #c6c6c6;
    --color-line: #eeeeee;
    --color-accent: #ff6a4f;
    --color-accent-ink: #171717;
  }
}

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

* {
  margin: 0;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

#main-content,
main section[id] {
  scroll-margin-top: 1rem;
}

body {
  min-height: 100dvh;
  background:
    linear-gradient(90deg, rgb(22 22 22 / 0.05) 1px, transparent 1px),
    linear-gradient(180deg, rgb(22 22 22 / 0.04) 1px, transparent 1px),
    var(--color-bg);
  background-size: 44px 44px;
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 20;
  opacity: 0.11;
  background-image: linear-gradient(135deg, var(--color-ink) 0 1px, transparent 1px 6px);
  background-size: 6px 6px;
}

a {
  color: inherit;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.2em;
}

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

img {
  color: var(--color-ink);
  background:
    linear-gradient(135deg, rgb(255 75 43 / 0.2), transparent 36%),
    linear-gradient(180deg, var(--color-surface), var(--color-bg));
  object-fit: cover;
}

:focus-visible {
  outline: 3px solid var(--color-line);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 50;
  transform: translateY(-160%);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  border: 2px solid var(--color-line);
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
}

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

.site-rail {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 10;
  width: var(--rail-width);
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 2rem;
  padding: 1.25rem;
  border-right: 2px solid var(--color-line);
  background: var(--color-bg);
  background: color-mix(in srgb, var(--color-bg) 93%, var(--color-surface));
}

.brand-lockup {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 0.9rem;
  align-items: center;
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 1vw, 1rem);
  font-weight: 800;
  overflow-wrap: anywhere;
  text-decoration: none;
}

.brand-mark {
  width: 3rem;
  height: 3rem;
  color: var(--color-ink);
}

.side-nav {
  display: flex;
  flex-direction: column;
  align-self: center;
  width: 100%;
  border-top: 2px solid var(--color-line);
}

.side-nav a {
  display: flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--color-line);
  padding: 0.75rem 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-decoration: none;
  transition: transform 180ms cubic-bezier(0.16, 1, 0.3, 1), opacity 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

.side-nav a::after {
  content: "";
  width: 0.8rem;
  height: 0.8rem;
  border: 2px solid currentColor;
  opacity: 0;
  transform: translateX(-0.4rem) rotate(45deg);
}

.side-nav a:hover,
.side-nav a:focus-visible {
  transform: translateX(0.35rem);
}

.side-nav a[aria-current="page"] {
  background: var(--color-accent);
  color: var(--color-accent-ink);
  padding-inline: 0.75rem;
  font-weight: 900;
}

.side-nav a[aria-current="page"]::after {
  opacity: 1;
  transform: translateX(0) rotate(45deg);
}

.rail-contact {
  display: grid;
  gap: 0.55rem;
  border: 2px solid var(--color-line);
  padding: 0.85rem;
}

.rail-contact a {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  overflow-wrap: anywhere;
}

.content-shell {
  margin-left: var(--rail-width);
  min-height: 100dvh;
}

.section-band {
  border-bottom: 2px solid var(--color-line);
  padding: var(--section-pad) clamp(1rem, 4vw, 4rem);
}

.hero {
  min-height: 86dvh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.58fr);
  gap: clamp(1.25rem, 5vw, 4rem);
  align-items: center;
  padding-top: clamp(2rem, 6vw, 4.5rem);
}

.hero-copy {
  max-width: 62rem;
}

.mono-label {
  font-family: var(--font-mono);
  font-size: clamp(0.72rem, 1vw, 0.88rem);
  font-weight: 800;
  line-height: 1.25;
  text-transform: uppercase;
  letter-spacing: 0;
}

h1,
h2,
h3 {
  line-height: 0.98;
  font-weight: 900;
  text-wrap: balance;
}

h1 {
  margin-top: 1.25rem;
  max-width: 11ch;
  font-size: clamp(3rem, 7.3vw, 6rem);
  overflow-wrap: anywhere;
}

h2 {
  font-size: clamp(2.2rem, 5.2vw, 4.8rem);
  max-width: 13ch;
}

h3 {
  font-size: clamp(1.3rem, 2.5vw, 2.15rem);
}

p {
  color: var(--color-muted);
  font-size: clamp(1rem, 1.3vw, 1.1rem);
  max-width: 68ch;
}

.hero-position {
  margin-top: 1.35rem;
  max-width: 40rem;
  color: var(--color-ink);
  font-size: clamp(1.18rem, 2vw, 1.55rem);
  line-height: 1.28;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.button-primary,
.button-secondary {
  display: inline-flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-line);
  padding: 0.85rem 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 900;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 180ms cubic-bezier(0.16, 1, 0.3, 1), opacity 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

.button-primary {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.button-secondary {
  background: transparent;
  color: var(--color-ink);
}

.button-primary:hover,
.button-secondary:hover,
.button-primary:focus-visible,
.button-secondary:focus-visible {
  transform: translate(-0.2rem, -0.2rem);
}

.button-primary:active,
.button-secondary:active {
  transform: translate(0, 0);
}

.full-width {
  width: 100%;
}

.hero-media,
.image-slab,
.leader-image {
  aspect-ratio: 4 / 3;
  min-height: clamp(18rem, 45vw, 38rem);
  border: 2px solid var(--color-line);
  background: var(--color-surface);
  overflow: hidden;
}

.hero-media {
  transform: rotate(1deg);
}

.hero-media img,
.image-slab img,
.leader-image img,
.capability-main img {
  width: 100%;
  height: 100%;
}

.section-heading {
  display: grid;
  gap: 1rem;
  margin-bottom: clamp(2rem, 4vw, 4rem);
}

.section-heading p {
  color: var(--color-muted);
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
}

.capability-grid {
  display: grid;
  grid-template-columns: minmax(18rem, 0.78fr) minmax(20rem, 1fr);
  gap: clamp(1rem, 3vw, 2rem);
}

.capability-main {
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 1rem;
  border: 2px solid var(--color-line);
  padding: clamp(1rem, 3vw, 1.5rem);
  background: var(--color-surface);
}

.capability-main p {
  color: var(--color-ink);
}

.capability-main img {
  aspect-ratio: 4 / 3;
  min-height: 18rem;
  border: 2px solid var(--color-line);
}

.capability-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 2px solid var(--color-line);
  background: var(--color-bg);
}

.capability-list article {
  display: grid;
  align-content: start;
  gap: 0.75rem;
  min-height: 17rem;
  padding: clamp(1rem, 2vw, 1.4rem);
  border-right: 2px solid var(--color-line);
  border-bottom: 2px solid var(--color-line);
}

.capability-list article:nth-child(2n) {
  border-right: 0;
}

.capability-list article:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.capability-list article:hover {
  transform: translateY(-0.2rem);
}

.method {
  display: grid;
  grid-template-columns: minmax(18rem, 0.65fr) minmax(20rem, 1fr);
  gap: clamp(1rem, 4vw, 3rem);
  align-items: start;
}

.method-panel {
  position: sticky;
  top: 2rem;
  display: grid;
  gap: 1.2rem;
}

.method-flow {
  list-style: none;
  counter-reset: method;
  display: grid;
  gap: 1rem;
  padding: 0;
}

.method-flow li {
  counter-increment: method;
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1rem;
  align-items: start;
  border: 2px solid var(--color-line);
  background: var(--color-bg);
  padding: clamp(1rem, 2.5vw, 1.4rem);
}

.method-flow li:nth-child(even) {
  transform: translateX(clamp(0rem, 4vw, 3rem));
  background: var(--color-surface);
}

.method-flow li::before {
  content: counter(method, decimal-leading-zero);
  display: inline-grid;
  place-items: center;
  width: 3.25rem;
  height: 3.25rem;
  background: var(--color-accent);
  color: var(--color-accent-ink);
  border: 2px solid var(--color-line);
  font-family: var(--font-mono);
  font-weight: 900;
}

.method-flow strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: clamp(1.12rem, 1.9vw, 1.5rem);
  line-height: 1.1;
}

.method-flow span {
  color: var(--color-muted);
}

.evidence-layout {
  display: grid;
  grid-template-columns: minmax(18rem, 0.85fr) minmax(20rem, 1fr);
  gap: clamp(1rem, 4vw, 3rem);
  align-items: stretch;
}

.evidence-copy {
  display: grid;
  align-content: center;
  gap: 1.35rem;
}

.proof-rows {
  display: grid;
  gap: 0.85rem;
}

.proof-rows article {
  border-top: 2px solid var(--color-line);
  padding-top: 0.85rem;
}

.proof-rows h3 {
  margin-bottom: 0.35rem;
  font-size: clamp(1.1rem, 1.8vw, 1.55rem);
}

.case-briefs h2 {
  margin-bottom: clamp(1.5rem, 4vw, 3rem);
  max-width: 14ch;
}

.brief-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1rem;
}

.brief {
  display: grid;
  align-content: start;
  gap: 0.75rem;
  min-height: 15rem;
  border: 2px solid var(--color-line);
  padding: clamp(1rem, 3vw, 1.5rem);
  background: var(--color-bg);
}

.brief-large {
  grid-row: span 2;
  min-height: 31rem;
  align-content: end;
  background:
    linear-gradient(135deg, transparent 0 64%, color-mix(in srgb, var(--color-accent) 28%, transparent) 64% 100%),
    var(--color-surface);
}

.brief-accent {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.brief-accent p {
  color: var(--color-accent-ink);
}

.governance {
  display: grid;
  grid-template-columns: minmax(18rem, 0.8fr) minmax(20rem, 1fr);
  gap: clamp(1rem, 4vw, 3rem);
}

.governance > div:first-child {
  display: grid;
  align-content: start;
  gap: 1.1rem;
}

.control-surface {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 2px solid var(--color-line);
  background: var(--color-surface);
}

.control-surface div {
  min-height: 13rem;
  display: grid;
  align-content: space-between;
  gap: 1rem;
  padding: clamp(1rem, 2vw, 1.25rem);
  border-right: 2px solid var(--color-line);
  border-bottom: 2px solid var(--color-line);
}

.control-surface div:nth-child(2n) {
  border-right: 0;
}

.control-surface div:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.leadership {
  display: grid;
  grid-template-columns: minmax(18rem, 0.75fr) minmax(19rem, 1fr);
  gap: clamp(1rem, 4vw, 3rem);
}

.leader-card {
  display: grid;
  align-content: center;
  gap: 1rem;
  border: 2px solid var(--color-line);
  padding: clamp(1rem, 4vw, 2rem);
  background: var(--color-surface);
}

.leader-name {
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 2.2vw, 1.7rem);
  font-weight: 900;
}

.leader-title {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-weight: 900;
}

.contact {
  display: grid;
  grid-template-columns: minmax(18rem, 1fr) minmax(18rem, 0.62fr);
  gap: clamp(1rem, 5vw, 4rem);
  align-items: start;
}

.contact-copy {
  display: grid;
  gap: 1.1rem;
}

.contact-panel {
  border: 2px solid var(--color-line);
  background: var(--color-surface);
  padding: clamp(1rem, 3vw, 1.4rem);
}

.contact-panel dl {
  display: grid;
  gap: 1rem;
  margin-bottom: 1rem;
}

.contact-panel div {
  border-bottom: 2px solid var(--color-line);
  padding-bottom: 0.85rem;
}

.contact-panel div:last-child {
  border-bottom: 0;
}

dt {
  margin-bottom: 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
}

dd {
  color: var(--color-muted);
  overflow-wrap: anywhere;
}

.site-footer {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem clamp(1rem, 4vw, 4rem);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.site-footer p {
  color: var(--color-ink);
  font-size: inherit;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.legal-shell {
  display: grid;
  min-height: 100dvh;
  align-content: space-between;
}

.legal-document {
  display: grid;
  gap: 1rem;
  max-width: 68rem;
}

.legal-document h1 {
  max-width: 12ch;
}

.legal-document h2 {
  margin-top: 1.25rem;
  font-size: clamp(1.55rem, 3vw, 2.6rem);
}

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

.reveal {
  will-change: transform, opacity;
}

@media (max-width: 1040px) {
  .site-rail {
    position: sticky;
    top: 0;
    width: 100%;
    min-height: auto;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-right: 0;
    border-bottom: 2px solid var(--color-line);
  }

  #main-content,
  main section[id] {
    scroll-margin-top: 9rem;
  }

  .side-nav {
    grid-column: 1 / -1;
    flex-direction: row;
    align-self: stretch;
    overflow-x: auto;
    border-top: 2px solid var(--color-line);
  }

  .side-nav a {
    min-width: max-content;
    min-height: 2.85rem;
    padding-inline: 0.85rem;
  }

  .rail-contact {
    justify-self: end;
    align-self: center;
    padding: 0.55rem;
  }

  .rail-contact .mono-label {
    display: none;
  }

  .content-shell {
    margin-left: 0;
  }

  .hero,
  .capability-grid,
  .method,
  .evidence-layout,
  .governance,
  .leadership,
  .contact {
    grid-template-columns: 1fr;
  }

  .method-panel {
    position: static;
  }

  .method-flow li:nth-child(even) {
    transform: none;
  }
}

@media (max-width: 720px) {
  body {
    background-size: 32px 32px;
  }

  .site-rail {
    grid-template-columns: 1fr;
    gap: 0.65rem;
  }

  #main-content,
  main section[id] {
    scroll-margin-top: 11.5rem;
  }

  .brand-lockup {
    grid-template-columns: 2.5rem 1fr;
  }

  .brand-mark {
    width: 2.5rem;
    height: 2.5rem;
  }

  .rail-contact {
    justify-self: stretch;
  }

  .hero {
    min-height: 84dvh;
  }

  h1 {
    font-size: clamp(2.55rem, 15vw, 4.2rem);
  }

  h2 {
    font-size: clamp(2rem, 11vw, 3.3rem);
  }

  .capability-list,
  .control-surface,
  .brief-grid {
    grid-template-columns: 1fr;
  }

  .capability-list article,
  .control-surface div {
    border-right: 0;
  }

  .capability-list article:nth-last-child(-n + 2),
  .control-surface div:nth-last-child(-n + 2) {
    border-bottom: 2px solid var(--color-line);
  }

  .capability-list article:last-child,
  .control-surface div:last-child {
    border-bottom: 0;
  }

  .brief-large {
    grid-row: auto;
    min-height: 20rem;
  }

  .method-flow li {
    grid-template-columns: 1fr;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .button-primary,
  .button-secondary {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    will-change: auto;
  }
}