/* 01. Tokens */

:root {
  color-scheme: light;
  --bg: #f4efe5;
  --bg-deep: #e9e1d3;
  --surface: #fffaf0;
  --surface-soft: rgba(83, 67, 42, 0.045);
  --surface-raised: #f0e8db;
  --surface-glass: rgba(255, 250, 240, 0.76);
  --surface-hover: #fffdf7;
  --text: #1a251e;
  --text-soft: #526159;
  --muted: #606d64;
  --accent: #337856;
  --accent-strong: #2f6f52;
  --accent-blue: #627f6c;
  --accent-soft: rgba(63, 137, 103, 0.1);
  --border: rgba(34, 57, 43, 0.11);
  --border-strong: rgba(63, 137, 103, 0.28);
  --moderate: #80652c;
  --moderate-soft: rgba(137, 103, 35, 0.1);
  --complete: #397857;
  --development: #80652c;
  --neutral-status: #597564;
  --neutral-soft: rgba(89, 117, 100, 0.09);
  --page-glow: rgba(76, 135, 99, 0.09);
  --article-glow: rgba(63, 137, 103, 0.07);
  --grid-line: rgba(36, 67, 48, 0.03);
  --header-bg: rgba(244, 239, 229, 0.8);
  --header-solid: rgba(250, 246, 237, 0.96);
  --menu-bg: rgba(255, 250, 240, 0.98);
  --panel-from: rgba(255, 250, 240, 0.97);
  --panel-to: rgba(240, 232, 219, 0.86);
  --node-bg: rgba(255, 250, 240, 0.94);
  --section-tint: rgba(52, 91, 65, 0.035);
  --card-from: rgba(255, 250, 240, 0.98);
  --card-to: rgba(244, 237, 225, 0.96);
  --on-accent: #f7fbf8;
  --accent-hover: #2b6d4e;
  --shadow-sm: 0 0.65rem 1.8rem rgba(32, 52, 39, 0.065);
  --shadow-md: 0 1.15rem 2.8rem rgba(32, 52, 39, 0.095);
  --shadow-lg: 0 1.8rem 4rem rgba(32, 52, 39, 0.12);
  --container: 73.75rem;
  --reading: 68ch;
  --header-height: 4.75rem;
  --radius-sm: 0.55rem;
  --radius-md: 0.85rem;
  --radius-lg: 0.95rem;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-emphasized: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 180ms;
  --duration-base: 280ms;
  --duration-slow: 600ms;
  --font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #101713;
  --bg-deep: #0b110e;
  --surface: #151f19;
  --surface-soft: rgba(255, 255, 255, 0.035);
  --surface-raised: #1b2820;
  --surface-glass: rgba(21, 31, 25, 0.74);
  --surface-hover: #1a251e;
  --text: #edf2ee;
  --text-soft: #b5c0b8;
  --muted: #8c9a90;
  --accent: #73b893;
  --accent-strong: #8bc9a4;
  --accent-blue: #8aab95;
  --accent-soft: rgba(115, 184, 147, 0.1);
  --border: rgba(224, 237, 227, 0.09);
  --border-strong: rgba(115, 184, 147, 0.28);
  --moderate: #d6b16d;
  --moderate-soft: rgba(214, 177, 109, 0.09);
  --complete: #8bc6a0;
  --development: #d6b16d;
  --neutral-status: #a0b6a7;
  --neutral-soft: rgba(130, 168, 143, 0.075);
  --page-glow: rgba(93, 157, 118, 0.075);
  --article-glow: rgba(115, 184, 147, 0.055);
  --grid-line: rgba(255, 255, 255, 0.016);
  --header-bg: rgba(16, 23, 19, 0.78);
  --header-solid: rgba(16, 23, 19, 0.95);
  --menu-bg: rgba(20, 30, 24, 0.98);
  --panel-from: rgba(25, 37, 29, 0.92);
  --panel-to: rgba(16, 23, 19, 0.8);
  --node-bg: rgba(21, 31, 25, 0.94);
  --section-tint: rgba(255, 255, 255, 0.014);
  --card-from: rgba(25, 37, 29, 0.9);
  --card-to: rgba(16, 24, 19, 0.82);
  --on-accent: #0d1711;
  --accent-hover: #92ccaa;
  --shadow-sm: 0 0.7rem 2rem rgba(0, 0, 0, 0.12);
  --shadow-md: 0 1.2rem 3rem rgba(0, 0, 0, 0.22);
  --shadow-lg: 0 1.8rem 4.5rem rgba(0, 0, 0, 0.28);
}

/* 02. Reset and base */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1rem);
  scrollbar-color: color-mix(in srgb, var(--accent) 55%, transparent) var(--bg-deep);
}

body {
  position: relative;
  isolation: isolate;
  min-width: 20rem;
  margin: 0;
  overflow-x: clip;
  color: var(--text);
  background:
    radial-gradient(circle at 78% 3%, var(--page-glow), transparent 30rem),
    radial-gradient(circle at 12% 42%, color-mix(in srgb, var(--page-glow) 38%, transparent), transparent 34rem),
    var(--bg);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.68;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  z-index: -2;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 6rem 6rem;
  mask-image: radial-gradient(circle at 50% 18%, #000 0, transparent 72%);
  opacity: 0.82;
  pointer-events: none;
  content: "";
  animation: technical-grid-drift 48s linear infinite;
  will-change: background-position;
}

body::after {
  position: fixed;
  z-index: -1;
  inset: -18%;
  background:
    linear-gradient(
      180deg,
      transparent 0 43%,
      color-mix(in srgb, var(--accent) 5%, transparent) 49%,
      color-mix(in srgb, var(--accent) 7%, transparent) 50%,
      color-mix(in srgb, var(--accent) 5%, transparent) 51%,
      transparent 57% 100%
    ),
    radial-gradient(
      circle,
      color-mix(in srgb, var(--accent) 22%, transparent) 0 1px,
      transparent 1.5px
    );
  background-size: 100% 24rem, 4rem 4rem;
  mask-image: linear-gradient(90deg, transparent, #000 14%, #000 86%, transparent);
  opacity: 0.42;
  pointer-events: none;
  content: "";
  animation: technical-scan 24s linear infinite;
  will-change: transform;
}

@keyframes technical-grid-drift {
  to {
    background-position: 6rem 6rem, 6rem 6rem;
  }
}

@keyframes technical-scan {
  from {
    transform: translate3d(0, -10%, 0);
  }

  to {
    transform: translate3d(0, 10%, 0);
  }
}

@view-transition {
  navigation: auto;
}

::view-transition-old(root) {
  animation: page-exit 180ms var(--ease) both;
}

::view-transition-new(root) {
  animation: page-enter 360ms var(--ease-emphasized) both;
}

@keyframes page-exit {
  to { opacity: 0; transform: translateY(-0.2rem); }
}

@keyframes page-enter {
  from { opacity: 0; transform: translateY(0.3rem); }
}

body.nav-open {
  overflow: hidden;
}

::selection {
  color: var(--on-accent);
  background: var(--accent);
}

body,
.site-header,
.primary-nav,
.domain-network,
.network-node,
.project-preview,
.architecture,
.flow-node,
.site-footer,
.oss-group,
.oss-note,
.remediation-note,
.contact-shell,
.contact-item,
.disclosure-record,
.preview-contribution,
.expertise-group,
.focus-list li,
.page-hero,
.research-card {
  transition: color var(--duration-base) var(--ease), background-color var(--duration-base) var(--ease), border-color var(--duration-base) var(--ease), box-shadow var(--duration-base) var(--ease);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
  font: inherit;
}

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

h1,
h2,
h3,
h4,
p,
ul,
ol,
dl {
  margin-top: 0;
}

ul,
ol,
dl {
  padding: 0;
}

h1,
h2,
h3,
h4 {
  color: var(--text);
  line-height: 1.12;
  letter-spacing: -0.035em;
}

p {
  color: var(--text-soft);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-sm);
  color: var(--bg-deep);
  background: var(--accent);
  font-weight: 750;
  transform: translateY(-200%);
  transition: transform 180ms var(--ease);
}

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

/* 03. Typography */

.eyebrow,
.section-label,
.collection-label,
.project-category,
.case-kicker,
.record-project,
.breadcrumb,
.fact-label,
.map-caption,
.article-label {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.055em;
}

.section-label {
  display: inline-flex;
  margin-bottom: 1rem;
  align-items: center;
  gap: 0.55rem;
  color: var(--accent);
}

.section-label::before {
  width: 0.42rem;
  height: 0.42rem;
  flex: 0 0 auto;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: var(--accent-soft);
  content: "";
}

.section-intro h2,
.section-heading h2,
.research-intro h2,
.contact-layout h2,
.journey-layout h2 {
  max-width: 17ch;
  margin-bottom: 0;
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 680;
}

.lead {
  color: var(--text);
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  line-height: 1.52;
}

.text-link,
.arrow-link {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-soft);
  font-size: 0.84rem;
  font-weight: 700;
  transition: color var(--duration-fast) var(--ease);
}

.text-link span,
.arrow-link span {
  color: var(--accent);
  transition: transform var(--duration-base) var(--ease-emphasized);
}

.text-link:hover,
.arrow-link:hover {
  color: var(--text);
}

.text-link:hover span,
.arrow-link:hover span {
  transform: translateX(0.22rem);
}

/* 04. Layout */

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

.section {
  position: relative;
  padding-block: clamp(4.25rem, 9vw, 7.25rem);
  scroll-margin-top: var(--header-height);
}

.section::before {
  display: none;
}

.section-heading {
  position: relative;
  display: grid;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
  padding-bottom: 1.35rem;
  gap: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.section-heading::after {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: clamp(3rem, 8vw, 5.5rem);
  height: 1px;
  background: var(--accent);
  content: "";
}

.section-heading > p {
  max-width: 34rem;
  margin: 0;
}

.editorial-split,
.research-layout,
.journey-layout,
.contact-layout {
  display: grid;
  gap: clamp(2rem, 6vw, 5rem);
}

/* 05. Navigation */

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  height: var(--header-height);
  padding-block: 0.45rem;
  pointer-events: none;
}

.site-header.is-scrolled,
.site-header.is-menu-open {
  background: transparent;
}

.nav-shell {
  position: relative;
  display: flex;
  height: 100%;
  padding: 0.35rem 0.45rem 0.35rem 0.72rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid transparent;
  border-radius: 0.9rem;
  background: color-mix(in srgb, var(--surface-glass) 66%, transparent);
  box-shadow: 0 0.5rem 1.6rem color-mix(in srgb, var(--text) 2.5%, transparent);
  backdrop-filter: blur(16px) saturate(125%);
  pointer-events: auto;
  transition: border-color var(--duration-base) var(--ease), background-color var(--duration-base) var(--ease), box-shadow var(--duration-base) var(--ease), transform var(--duration-base) var(--ease-emphasized);
}

.site-header.is-scrolled .nav-shell,
.site-header.is-menu-open .nav-shell {
  border-color: var(--border);
  background: var(--header-solid);
  box-shadow: var(--shadow-md);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.92rem;
  font-weight: 750;
  letter-spacing: -0.015em;
}

.brand-mark {
  display: grid;
  width: 2rem;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--border-strong);
  border-radius: 0.52rem;
  color: var(--accent);
  background: var(--accent-soft);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0;
  transition: color var(--duration-base) var(--ease), background-color var(--duration-base) var(--ease), border-color var(--duration-base) var(--ease), transform var(--duration-base) var(--ease-emphasized);
}

.brand:hover .brand-mark {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent-soft) 75%, var(--surface));
  transform: translateY(-1px) rotate(-3deg);
}

.nav-toggle {
  display: grid;
  width: 2.6rem;
  height: 2.6rem;
  padding: 0.68rem;
  place-content: center;
  gap: 0.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-soft);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 1.1rem;
  height: 1px;
  background: currentColor;
  transition: transform 180ms var(--ease), opacity 180ms var(--ease);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(0.32rem) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-0.32rem) rotate(-45deg);
}

.primary-nav {
  position: absolute;
  top: calc(100% + 0.55rem);
  right: 0;
  left: 0;
  display: grid;
  max-height: 0;
  padding: 0;
  overflow: hidden;
  visibility: hidden;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  background: var(--menu-bg);
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(-0.5rem);
  transition: max-height var(--duration-base) var(--ease), padding var(--duration-base) var(--ease), opacity var(--duration-fast) var(--ease), transform var(--duration-base) var(--ease-emphasized), visibility var(--duration-base);
}

.primary-nav.is-open {
  max-height: calc(100dvh - var(--header-height) - 1rem);
  padding: 0.6rem;
  overflow-y: auto;
  visibility: visible;
  border-color: var(--border);
  opacity: 1;
  transform: translateY(0);
}

.nav-link {
  padding: 0.68rem 0.75rem;
  border-radius: 0.45rem;
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 650;
  transition: color var(--duration-fast) var(--ease), background-color var(--duration-fast) var(--ease), transform var(--duration-fast) var(--ease);
}

.nav-link:hover,
.nav-link.is-active,
.nav-link[aria-current="page"] {
  color: var(--text);
  background: var(--surface-soft);
}

.nav-link.is-active {
  color: var(--accent);
}

.nav-link-accent {
  color: var(--accent);
  background: var(--accent-soft);
}

.theme-toggle {
  position: relative;
  display: grid;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--muted);
  background: var(--surface-soft);
  cursor: pointer;
  transition: color var(--duration-base) var(--ease), background-color var(--duration-base) var(--ease), border-color var(--duration-base) var(--ease), transform var(--duration-fast) var(--ease);
}

.theme-toggle:hover {
  border-color: var(--border-strong);
  color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-1px);
}

.theme-toggle:active {
  transform: scale(0.96);
}

.theme-icon {
  position: absolute;
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: opacity var(--duration-base) var(--ease), transform var(--duration-base) var(--ease-emphasized);
}

.theme-icon-sun {
  opacity: 0;
  transform: rotate(-25deg) scale(0.75);
}

.theme-icon-moon {
  opacity: 1;
  transform: rotate(0) scale(1);
}

[data-theme="dark"] .theme-icon-sun {
  opacity: 1;
  transform: rotate(0) scale(1);
}

[data-theme="dark"] .theme-icon-moon {
  opacity: 0;
  transform: rotate(25deg) scale(0.75);
}

/* 06. Buttons and status */

.button {
  display: inline-flex;
  min-height: 2.8rem;
  padding: 0.68rem 1rem;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 750;
  transition: color var(--duration-base) var(--ease), background-color var(--duration-base) var(--ease), border-color var(--duration-base) var(--ease), box-shadow var(--duration-base) var(--ease), transform var(--duration-base) var(--ease-emphasized);
}

.button:hover {
  transform: translateY(-2px);
}

.button > span {
  transition: transform var(--duration-base) var(--ease-emphasized);
}

.button:hover > span {
  transform: translateX(3px);
}

.button:active {
  transform: translateY(0) scale(0.985);
}

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

.button-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 0.65rem 1.5rem color-mix(in srgb, var(--accent) 17%, transparent);
}

.button-secondary {
  border-color: var(--border);
  background: var(--surface-soft);
}

.button-secondary:hover {
  border-color: var(--border-strong);
  background: var(--accent-soft);
}

.nav-link-accent:hover {
  border-color: var(--accent);
  color: var(--accent-strong);
  background: color-mix(in srgb, var(--accent-soft) 82%, var(--surface));
}

.status {
  display: inline-flex;
  width: fit-content;
  padding: 0.28rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-soft);
  background: var(--surface-soft);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.045em;
  line-height: 1.35;
  text-transform: uppercase;
}

.status-active,
.status-complete {
  border-color: color-mix(in srgb, var(--complete) 28%, transparent);
  color: var(--complete);
  background: color-mix(in srgb, var(--complete) 7%, transparent);
}

.status-development,
.status-moderate {
  border-color: rgba(221, 185, 116, 0.3);
  color: var(--moderate);
  background: var(--moderate-soft);
}

.status-neutral {
  border-color: color-mix(in srgb, var(--neutral-status) 28%, transparent);
  color: var(--neutral-status);
  background: var(--neutral-soft);
}

/* 07. Hero */

.hero {
  position: relative;
  display: flex;
  min-height: clamp(40rem, 84vh, 52rem);
  padding-block: clamp(4.75rem, 9vw, 7.5rem);
  align-items: center;
  overflow: hidden;
}

.hero::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 5.5rem 5.5rem;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.42), transparent 88%);
  pointer-events: none;
  content: "";
}

.hero-layout {
  position: relative;
  display: grid;
  align-items: center;
  gap: clamp(2.75rem, 7vw, 5.5rem);
}

.hero-copy {
  position: relative;
  max-width: 45rem;
  padding-left: 1.25rem;
}

.hero-copy::before {
  position: absolute;
  top: 0.25rem;
  bottom: 0.25rem;
  left: 0;
  width: 1px;
  background: linear-gradient(transparent, var(--border-strong) 18%, var(--border-strong) 82%, transparent);
  content: "";
  opacity: 0.65;
}

.eyebrow {
  display: flex;
  margin-bottom: 1.1rem;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
}

.eyebrow span,
.hero-identity span {
  color: var(--muted);
}

.hero h1 {
  margin-bottom: 0.55rem;
  font-size: clamp(3.2rem, 5.4vw, 4.8rem);
  font-weight: 720;
  letter-spacing: -0.055em;
}

.hero-identity {
  margin-bottom: 1.3rem;
  color: var(--accent-strong);
  font-size: clamp(1rem, 1.7vw, 1.2rem);
  font-weight: 620;
}

.hero-statement {
  max-width: 60ch;
  margin-bottom: 1.8rem;
  font-size: clamp(1rem, 1.8vw, 1.12rem);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  margin-bottom: 1.3rem;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.hero-social-links {
  display: flex;
  width: fit-content;
  max-width: 100%;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.45rem 0;
}

.hero-social-link {
  position: relative;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.74rem;
}

.hero-social-link:not(:last-child) {
  margin-right: 0.9rem;
  padding-right: 0.9rem;
}

.hero-social-link:not(:last-child)::after {
  position: absolute;
  top: 50%;
  right: -0.1rem;
  width: 0.2rem;
  height: 0.2rem;
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 55%, transparent);
  content: "";
  transform: translateY(-50%);
}

.domain-network {
  position: relative;
  width: min(100%, 28rem);
  aspect-ratio: 1;
  margin-inline: auto;
  isolation: isolate;
  filter: drop-shadow(0 1.5rem 2.8rem color-mix(in srgb, var(--text) 8%, transparent));
  transition: filter var(--duration-base) var(--ease), transform var(--duration-slow) var(--ease-emphasized);
}

.domain-network:hover {
  filter: drop-shadow(0 1.8rem 3.2rem color-mix(in srgb, var(--text) 11%, transparent));
}

.domain-network::before {
  position: absolute;
  z-index: -1;
  inset: 12%;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-soft), transparent 68%);
  filter: blur(0.3rem);
  content: "";
}

.network-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  fill: none;
  stroke: color-mix(in srgb, var(--accent) 22%, transparent);
  stroke-linecap: round;
  stroke-width: 1.15;
}

.network-lines .network-orbit {
  stroke: color-mix(in srgb, var(--accent) 24%, transparent);
  stroke-dasharray: 3 10;
}

.network-node {
  position: absolute;
  z-index: 1;
  display: grid;
  min-width: 5.5rem;
  min-height: 5.5rem;
  padding: 0.75rem;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--accent) 25%, var(--border));
  border-radius: 50%;
  color: var(--text-soft);
  background: color-mix(in srgb, var(--node-bg) 88%, transparent);
  box-shadow: var(--shadow-sm);
  font-size: 0.75rem;
  font-weight: 650;
  line-height: 1.2;
  text-align: center;
  backdrop-filter: blur(0.65rem);
  transition: color var(--duration-base) var(--ease), background-color var(--duration-base) var(--ease), border-color var(--duration-base) var(--ease), box-shadow var(--duration-base) var(--ease);
}

.network-node::before {
  position: absolute;
  top: 0.55rem;
  width: 0.28rem;
  height: 0.28rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0.28rem var(--accent-soft);
  content: "";
}

.network-core {
  top: 50%;
  left: 50%;
  min-width: 7.2rem;
  min-height: 7.2rem;
  border-color: var(--border-strong);
  color: var(--text);
  background: color-mix(in srgb, var(--surface) 78%, transparent);
  transform: translate(-50%, -50%);
}

.network-backend {
  top: 11%;
  left: 14%;
}

.network-ai {
  top: 15%;
  right: 10%;
}

.network-security {
  right: 8%;
  bottom: 10%;
}

.network-open-source {
  bottom: 13%;
  left: 12%;
  min-width: 6rem;
  min-height: 6rem;
}

@supports (offset-path: ellipse(40% 30% at 50% 50%)) {
  .network-orbit-node {
    top: 0;
    right: auto;
    bottom: auto;
    left: 0;
    offset-path: ellipse(34.5% 28% at 50% 50%);
    offset-anchor: center;
    offset-rotate: 0deg;
    animation: engineering-orbit 40s linear infinite;
    will-change: offset-distance;
  }

  .network-backend {
    offset-distance: 0%;
    animation-delay: 0s;
  }

  .network-ai {
    offset-distance: 25%;
    animation-delay: -10s;
  }

  .network-security {
    offset-distance: 50%;
    animation-delay: -20s;
  }

  .network-open-source {
    offset-distance: 75%;
    animation-delay: -30s;
  }

}

@keyframes engineering-orbit {
  from { offset-distance: 0%; }
  to { offset-distance: 100%; }
}

/* 08. Section primitives */

.about-section,
.research-section,
.expertise-section,
.contact-section {
  background: linear-gradient(180deg, transparent, var(--section-tint) 16%, var(--section-tint) 84%, transparent);
}

.editorial-copy {
  max-width: var(--reading);
}

.editorial-copy p {
  margin-bottom: 1rem;
}

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

/* 09. Project previews */

.featured-work,
.additional-work {
  display: grid;
  gap: 1rem;
}

.project-preview {
  position: relative;
  min-width: 0;
  overflow: hidden;
  isolation: isolate;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--card-from), var(--card-to));
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(0.35rem);
  transition: border-color var(--duration-base) var(--ease), box-shadow var(--duration-base) var(--ease), transform var(--duration-base) var(--ease-emphasized);
}

.project-preview::before {
  position: absolute;
  z-index: 0;
  top: 0;
  right: 0;
  bottom: 0;
  width: 0.22rem;
  background: var(--project-accent, var(--accent));
  content: "";
  opacity: 0.58;
}

.project-preview::after {
  position: absolute;
  z-index: 0;
  top: -6rem;
  right: -5rem;
  width: 14rem;
  height: 14rem;
  border-radius: 50%;
  background: color-mix(in srgb, var(--project-accent, var(--accent)) 8%, transparent);
  content: "";
  transition: transform 420ms var(--ease-emphasized);
}

.project-preview > * {
  position: relative;
  z-index: 1;
}

.project-preview:hover {
  border-color: color-mix(in srgb, var(--project-accent, var(--accent)) 33%, var(--border));
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.project-preview:hover::after {
  transform: translate(-0.5rem, 0.5rem) scale(1.06);
}

.project-preview:focus-within,
.disclosure-record:focus-within,
.preview-contribution:focus-within,
.oss-group:focus-within,
.contact-shell:focus-within {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

.project-codeguardian { --project-accent: #4f8f6f; }
.project-secops { --project-accent: #718f79; }
.project-ai-brain { --project-accent: #7b8062; }
.project-echomind { --project-accent: #557d72; }
.project-interview { --project-accent: #7b725e; }

.project-preview-featured {
  display: grid;
  min-height: 13.5rem;
  padding: clamp(1.4rem, 3vw, 1.9rem);
  gap: 1.2rem;
}

.project-preview-compact {
  display: flex;
  min-height: 21rem;
  padding: clamp(1.35rem, 3vw, 1.7rem);
  flex-direction: column;
}

.project-number {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.68rem;
}

.project-number::after {
  width: 1.6rem;
  height: 1px;
  background: color-mix(in srgb, var(--project-accent, var(--accent)) 55%, transparent);
  content: "";
}

.project-category {
  margin-bottom: 0.6rem;
  color: var(--muted);
  font-size: 0.66rem;
}

.project-preview h3 {
  margin-bottom: 0.65rem;
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 680;
}

.project-preview p:not(.project-category) {
  max-width: 58ch;
  margin-bottom: 1rem;
  font-size: 0.91rem;
}

.tag-list {
  display: flex;
  margin-bottom: 0;
  flex-wrap: wrap;
  gap: 0.35rem;
  list-style: none;
}

.tag-list li {
  padding: 0.26rem 0.48rem;
  border: 1px solid var(--border);
  border-radius: 0.35rem;
  color: var(--muted);
  background: color-mix(in srgb, var(--surface) 44%, transparent);
  font-family: var(--font-mono);
  font-size: 0.61rem;
  transition: color var(--duration-base) var(--ease), background-color var(--duration-base) var(--ease), border-color var(--duration-base) var(--ease);
}

.project-preview:hover .tag-list li {
  border-color: color-mix(in srgb, var(--project-accent, var(--accent)) 22%, var(--border));
  color: var(--text-soft);
  background: var(--surface-soft);
}

.project-preview-action {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-direction: column;
  gap: 1rem;
}

.collection-label {
  margin: clamp(2.25rem, 5vw, 3.5rem) 0 1rem;
  color: var(--muted);
  font-size: 0.66rem;
}

.compact-action {
  display: flex;
  margin-top: auto;
  padding-top: 1.35rem;
  align-items: flex-start;
  justify-content: space-between;
  flex-direction: column;
  gap: 0.9rem;
}

/* 10. Research */

.research-intro > p:not(.section-label) {
  max-width: 58ch;
  margin-block: 1.25rem 1.4rem;
}

.disclosure-list {
  display: grid;
  gap: 0.45rem;
}

.disclosure-record {
  display: grid;
  padding: 1.15rem 1.2rem;
  gap: 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, color-mix(in srgb, var(--surface) 72%, transparent), color-mix(in srgb, var(--surface-raised) 46%, transparent));
  transition: border-color var(--duration-base) var(--ease), background-color var(--duration-base) var(--ease), box-shadow var(--duration-base) var(--ease), transform var(--duration-base) var(--ease-emphasized);
}

.disclosure-record:hover {
  border-color: var(--border);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transform: translateX(3px);
}

.record-project {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--muted);
  font-size: 0.61rem;
}

.disclosure-record h3 {
  margin-bottom: 0.15rem;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2vw, 1.25rem);
  letter-spacing: -0.02em;
}

.disclosure-record p {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
}

.disclosure-record .disclosure-title {
  max-width: 58ch;
  margin: 0.55rem 0 0.45rem;
  color: var(--text-soft);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.5;
}

.record-id {
  letter-spacing: 0.01em;
}

.record-meta {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.record-state {
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 0.66rem;
}

/* 11. Open source */

.contribution-list {
  display: grid;
  gap: 0.55rem;
  list-style: none;
}

.preview-contribution {
  display: grid;
  padding: 1rem 1.05rem;
  grid-template-columns: 2rem minmax(0, 1fr);
  align-items: center;
  gap: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, color-mix(in srgb, var(--surface) 78%, transparent), color-mix(in srgb, var(--surface-raised) 42%, transparent));
  transition: border-color var(--duration-base) var(--ease), background-color var(--duration-base) var(--ease), box-shadow var(--duration-base) var(--ease), transform var(--duration-base) var(--ease-emphasized);
}

.preview-contribution:hover {
  border-color: var(--border);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.preview-contribution > span {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.63rem;
}

.preview-contribution strong,
.preview-contribution small {
  display: block;
}

.preview-contribution strong {
  font-size: 0.9rem;
}

.preview-contribution small {
  margin-top: 0.15rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.64rem;
}

.preview-contribution .arrow-link {
  grid-column: 2;
  font-size: 0.72rem;
}

.contribution-all-link {
  margin-top: 1.25rem;
  color: var(--accent);
}

/* Open-source contribution index */

.oss-shell {
  width: min(calc(100% - 2rem), 70rem);
  margin-inline: auto;
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
}

.oss-note,
.remediation-note {
  display: grid;
  margin-bottom: 1.5rem;
  padding: 1rem 1.1rem;
  gap: 1rem;
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  border-radius: var(--radius-md);
  background: linear-gradient(110deg, var(--accent-soft), var(--surface-soft) 45%, transparent);
}

.oss-note p,
.remediation-note p {
  max-width: var(--reading);
  margin: 0;
  font-size: 0.84rem;
}

.remediation-note strong {
  display: block;
  margin-bottom: 0.25rem;
}

.open-source-index {
  display: grid;
  gap: clamp(1rem, 2vw, 1.35rem);
}

.oss-group {
  position: relative;
  scroll-margin-top: calc(var(--header-height) + 1.25rem);
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--border) 78%, transparent);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, var(--surface), color-mix(in srgb, var(--surface-raised) 42%, var(--surface)));
  box-shadow: 0 0.6rem 1.8rem color-mix(in srgb, var(--text) 4%, transparent);
}

.oss-group-header {
  display: flex;
  padding: clamp(1.1rem, 2.5vw, 1.4rem);
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  background: linear-gradient(120deg, var(--surface-soft), transparent);
}

.oss-group-header > div {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 0.8rem;
}

.oss-mark {
  display: grid;
  width: 2.55rem;
  aspect-ratio: 1;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--border-strong);
  border-radius: 0.7rem;
  color: var(--accent);
  background: var(--accent-soft);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
}

.oss-group-header h2 {
  margin-bottom: 0.18rem;
  font-size: clamp(1.12rem, 2vw, 1.42rem);
  overflow-wrap: anywhere;
}

.oss-group-header p,
.oss-group-kind {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.62rem;
}

.oss-group-kind {
  flex: 0 0 auto;
  padding-top: 0.2rem;
  font-weight: 650;
  letter-spacing: 0.025em;
}

.oss-entries {
  list-style: none;
}

.oss-entry {
  display: grid;
  padding: clamp(1.05rem, 2.5vw, 1.3rem);
  gap: 0.75rem;
  border-top: 1px solid var(--border);
  box-shadow: inset 0 0 var(--accent);
  transition: background-color var(--duration-base) var(--ease), box-shadow var(--duration-base) var(--ease);
}

.oss-entry:hover {
  background: var(--surface-soft);
  box-shadow: inset 3px 0 var(--accent);
}

.oss-entry > div:first-child {
  min-width: 0;
}

.oss-reference,
.oss-category {
  display: block;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.63rem;
}

.oss-reference {
  margin-bottom: 0.38rem;
  color: var(--accent);
  font-weight: 700;
}

.oss-entry strong {
  display: block;
  max-width: 62ch;
  font-size: clamp(0.88rem, 1.5vw, 0.96rem);
  font-weight: 650;
  line-height: 1.48;
  overflow-wrap: anywhere;
}

.oss-summary {
  max-width: 68ch;
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.58;
}

.oss-entry code,
.advisory-title code,
.disclosure-title code,
.remediation-note code {
  padding: 0.08em 0.28em;
  border-radius: 0.3rem;
  color: var(--accent-strong);
  background: var(--accent-soft);
  font-family: var(--font-mono);
  font-size: 0.86em;
  font-weight: 650;
  overflow-wrap: anywhere;
}

.oss-entry-action {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
}

.oss-entry-action a {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--text-soft);
  font-size: 0.72rem;
  font-weight: 700;
  transition: color var(--duration-fast) var(--ease);
}

.oss-entry-action a span {
  color: var(--accent);
  transition: transform var(--duration-base) var(--ease-emphasized);
}

.oss-entry-action a:hover {
  color: var(--text);
}

.oss-entry-action a:hover span {
  transform: translateX(3px);
}

.oss-status {
  display: inline-flex;
  padding: 0.25rem 0.48rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.61rem;
  font-weight: 700;
  line-height: 1.35;
  text-transform: uppercase;
}

.oss-status-merged {
  color: var(--complete);
  background: color-mix(in srgb, var(--complete) 8%, transparent);
}

.oss-status-reported {
  color: var(--neutral-status);
  background: var(--neutral-soft);
}

.oss-status-closed {
  color: var(--neutral-status);
  background: var(--neutral-soft);
}

.oss-related {
  margin: 0;
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  background: var(--surface-soft);
  font-size: 0.76rem;
}

.oss-related a {
  color: var(--accent);
  font-weight: 700;
}

.oss-footer-cta {
  display: grid;
  margin-top: clamp(2rem, 5vw, 3.5rem);
  padding: clamp(1.25rem, 4vw, 2rem);
  align-items: center;
  gap: 1.25rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(125deg, var(--accent-soft), var(--panel-to));
}

.oss-footer-cta h2 {
  margin: 0;
  font-size: clamp(1.25rem, 3vw, 1.8rem);
}

/* 12. Expertise and journey */

.expertise-grid {
  display: grid;
  gap: 0.75rem;
}

.expertise-group {
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, color-mix(in srgb, var(--surface) 72%, transparent), color-mix(in srgb, var(--surface-raised) 36%, transparent));
  transition: background-color var(--duration-base) var(--ease), box-shadow var(--duration-base) var(--ease), transform var(--duration-base) var(--ease-emphasized);
}

.expertise-group:hover {
  background-color: var(--surface-soft);
  box-shadow: var(--shadow-sm);
  transform: translateY(-3px);
}

.expertise-group > span {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.63rem;
}

.expertise-group h3 {
  margin: 0.7rem 0 0.75rem;
  font-size: 1.02rem;
}

.expertise-group p {
  max-width: 52ch;
  margin: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.8;
}

.focus-list {
  display: grid;
  gap: 0.35rem;
  list-style: none;
}

.focus-list li {
  display: grid;
  padding: 0.95rem 1rem;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: 0.8rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  transition: background-color var(--duration-base) var(--ease), border-color var(--duration-base) var(--ease), transform var(--duration-base) var(--ease-emphasized);
}

.focus-list li:hover {
  border-color: var(--border);
  background: var(--surface-soft);
  transform: translateX(3px);
}

.focus-list li > span {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.62rem;
}

.focus-list h3 {
  margin-bottom: 0.3rem;
  font-size: 0.95rem;
}

.focus-list p {
  max-width: 52ch;
  margin: 0;
  font-size: 0.82rem;
}

/* 13. CTA, contact and footer */

.github-section {
  padding-block: clamp(2.75rem, 6vw, 4.5rem);
}

.github-callout {
  display: grid;
  padding: clamp(1.4rem, 4vw, 2.3rem);
  align-items: center;
  gap: 1.5rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(125deg, var(--accent-soft), var(--panel-to));
}

.github-callout h2 {
  max-width: 28ch;
  margin: 0;
  font-size: clamp(1.4rem, 3vw, 2.1rem);
}

.github-callout .section-label {
  margin-bottom: 0.55rem;
}

.contact-shell {
  position: relative;
  display: grid;
  padding: clamp(1.4rem, 4vw, 2.5rem);
  gap: clamp(2rem, 6vw, 5rem);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    radial-gradient(circle at 8% 12%, var(--accent-soft), transparent 18rem),
    linear-gradient(145deg, var(--card-from), var(--card-to));
  box-shadow: var(--shadow-md);
}

.contact-shell::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  content: "";
  opacity: 0.65;
}

.contact-copy h2 {
  max-width: 14ch;
  margin-bottom: 1rem;
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 680;
}

.contact-copy > p:not(.section-label) {
  max-width: 52ch;
  margin-bottom: 1.5rem;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.contact-actions .button {
  gap: 0.55rem;
}

.contact-actions svg,
.contact-item svg {
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.6;
}

.contact-directory {
  min-width: 0;
  border-top: 1px solid var(--border);
}

.contact-item {
  display: grid;
  min-width: 0;
  padding: 0.9rem 0.3rem;
  grid-template-columns: 2rem minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid var(--border);
  transition: color var(--duration-base) var(--ease), background-color var(--duration-base) var(--ease), transform var(--duration-base) var(--ease-emphasized);
}

.contact-item:hover {
  color: var(--accent-strong);
  background: var(--surface-soft);
  transform: translateX(3px);
}

.contact-item-icon {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 50%;
  color: var(--accent);
  background: var(--accent-soft);
}

.contact-item-copy {
  min-width: 0;
}

.contact-item-copy small,
.contact-item-copy strong {
  display: block;
}

.contact-item-copy small {
  margin-bottom: 0.08rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.62rem;
}

.contact-item-copy strong {
  color: var(--text);
  font-size: 0.82rem;
  overflow-wrap: anywhere;
}

.contact-item-arrow {
  color: var(--accent);
  transition: transform var(--duration-base) var(--ease-emphasized);
}

.contact-item:hover .contact-item-arrow {
  transform: translateX(3px);
}

.site-footer {
  border-top: 1px solid var(--border);
  background:
    radial-gradient(circle at 14% 0%, var(--accent-soft), transparent 22rem),
    var(--bg-deep);
}

.footer-layout {
  display: flex;
  min-height: 7rem;
  padding-block: 1.5rem;
  align-items: flex-start;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
}

.footer-layout p {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.63rem;
}

/* 14. Project article and research index pages */

.article-page {
  background:
    radial-gradient(circle at 85% 0%, var(--article-glow), transparent 24rem),
    var(--bg);
}

.page-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(4rem, 9vw, 7rem) clamp(3.5rem, 7vw, 5.5rem);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--accent-soft), transparent 82%);
}

.page-hero::before {
  position: absolute;
  z-index: -2;
  inset: 0;
  background: radial-gradient(circle at 82% 18%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 25rem);
  content: "";
}

.page-hero::after {
  position: absolute;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 5rem 5rem;
  mask-image: linear-gradient(90deg, transparent 5%, #000 72%, transparent);
  pointer-events: none;
  content: "";
}

.breadcrumb {
  display: flex;
  margin-bottom: 1.6rem;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
  font-size: 0.66rem;
}

.breadcrumb a {
  padding: 0.2rem 0.35rem;
  border-radius: 0.3rem;
}

.breadcrumb a:hover {
  color: var(--accent);
}

.breadcrumb a {
  transition: color var(--duration-fast) var(--ease);
}

.breadcrumb span:last-child {
  color: var(--text-soft);
}

.case-hero-layout {
  display: grid;
  gap: 2.25rem;
}

.case-kicker {
  margin-bottom: 0.8rem;
}

.page-hero h1 {
  max-width: 13ch;
  margin-bottom: 0.8rem;
  font-size: clamp(2.7rem, 6vw, 4.6rem);
  font-weight: 710;
  letter-spacing: -0.055em;
}

.case-positioning,
.page-intro {
  max-width: 62ch;
  margin-bottom: 0;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.status-note {
  margin: 0.75rem 0 0;
  color: var(--moderate);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.project-facts {
  display: grid;
  padding: 0.45rem 1rem;
  align-self: end;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-glass);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(0.6rem);
}

.project-facts > div {
  display: grid;
  padding-block: 0.75rem;
  grid-template-columns: 6rem minmax(0, 1fr);
  gap: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.fact-label {
  color: var(--muted);
  font-size: 0.61rem;
}

.project-facts dd {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.78rem;
}

.article-shell {
  width: min(calc(100% - 2rem), 66rem);
  margin-inline: auto;
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
}

.case-study {
  display: grid;
  gap: clamp(4rem, 9vw, 6.75rem);
}

.case-section {
  position: relative;
  display: grid;
  padding-top: 1rem;
  gap: 1.5rem;
  scroll-margin-top: calc(var(--header-height) + 1.5rem);
}

.case-section::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 3.25rem;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
  content: "";
}

.case-section-heading {
  max-width: 30rem;
}

.article-label {
  display: block;
  margin-bottom: 0.7rem;
  color: var(--muted);
  font-size: 0.62rem;
}

.case-section h2 {
  margin-bottom: 0;
  font-size: clamp(1.65rem, 3.2vw, 2.45rem);
}

.case-section h3 {
  margin-bottom: 0.55rem;
  font-size: 1rem;
}

.case-section-body {
  max-width: var(--reading);
}

.case-section-body > p:last-child {
  margin-bottom: 0;
}

.callout {
  margin-top: 1.3rem;
  padding: 1.1rem 1.2rem;
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--accent-soft);
}

.callout strong {
  display: block;
  margin-bottom: 0.25rem;
}

.callout p {
  margin: 0;
  font-size: 0.85rem;
}

.architecture {
  padding: clamp(1.1rem, 3vw, 1.5rem);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--card-from), var(--card-to));
  box-shadow: var(--shadow-sm);
}

.architecture-title {
  margin-bottom: 1.2rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.architecture-flow {
  display: flex;
  align-items: stretch;
  flex-direction: column;
  gap: 0.45rem;
}

.architecture-flow-long {
  flex-direction: column;
}

.flow-node {
  display: grid;
  min-height: 3.25rem;
  padding: 0.65rem 0.8rem;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-soft);
  background: var(--node-bg);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.35;
  text-align: center;
  transition: border-color var(--duration-base) var(--ease), background-color var(--duration-base) var(--ease), transform var(--duration-base) var(--ease-emphasized);
}

.flow-node-accent {
  border-color: var(--border-strong);
  color: var(--accent);
  background: var(--accent-soft);
}

.flow-arrow {
  align-self: center;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.architecture-branches {
  display: grid;
  margin-top: 0.6rem;
  gap: 0.45rem;
}

.capability-grid,
.decision-grid,
.tech-grid {
  display: grid;
  gap: 0.75rem;
}

.capability-card,
.decision-card,
.tech-group,
.research-card {
  padding: 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, color-mix(in srgb, var(--surface) 74%, transparent), color-mix(in srgb, var(--surface-raised) 42%, transparent));
  transition: border-color var(--duration-base) var(--ease), background-color var(--duration-base) var(--ease), box-shadow var(--duration-base) var(--ease), transform var(--duration-base) var(--ease-emphasized);
}

.capability-card:hover,
.decision-card:hover,
.tech-group:hover,
.research-card:hover {
  border-color: var(--border-strong);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.capability-card p,
.decision-card p,
.tech-group p {
  margin: 0;
  font-size: 0.82rem;
}

.principle-list,
.article-list {
  display: grid;
  gap: 0.65rem;
  list-style: none;
}

.principle-list li,
.article-list li {
  position: relative;
  padding-left: 1.1rem;
  color: var(--text-soft);
  font-size: 0.87rem;
}

.principle-list li::before,
.article-list li::before {
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 0.4rem;
  height: 1px;
  background: var(--accent);
  content: "";
}

.takeaway {
  padding: clamp(1.3rem, 4vw, 2rem);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--accent-soft), var(--panel-to));
}

.takeaway .article-label {
  color: var(--accent);
}

.takeaway h2 {
  max-width: 25ch;
  margin-bottom: 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
}

.takeaway p {
  max-width: var(--reading);
  margin: 0;
}

.project-navigation {
  display: grid;
  margin-top: clamp(3rem, 7vw, 5rem);
  padding-top: 1.25rem;
  gap: 0.75rem;
  border-top: 1px solid var(--border);
}

.project-navigation a {
  display: flex;
  padding: 0.85rem;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-soft);
  font-size: 0.78rem;
  font-weight: 700;
  transition: color var(--duration-base) var(--ease), border-color var(--duration-base) var(--ease), background-color var(--duration-base) var(--ease), transform var(--duration-base) var(--ease-emphasized);
}

.project-navigation a:hover {
  border-color: var(--border-strong);
  color: var(--text);
  background: var(--accent-soft);
  transform: translateY(-2px);
}

.back-to-work {
  margin-top: 1rem;
  text-align: center;
}

.research-index {
  display: grid;
  gap: 1rem;
}

.research-card {
  display: grid;
  padding: clamp(1.2rem, 3vw, 1.55rem);
  gap: 1.1rem;
  border-left: 2px solid color-mix(in srgb, var(--accent) 60%, var(--border));
  background: linear-gradient(145deg, var(--surface), color-mix(in srgb, var(--surface-raised) 44%, var(--surface)));
  box-shadow: var(--shadow-sm);
}

.research-card h2 {
  margin-bottom: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 3vw, 1.65rem);
  letter-spacing: -0.025em;
}

.advisory-title {
  max-width: 64ch;
  margin: 0.7rem 0 0.55rem;
  color: var(--text-soft);
  font-size: clamp(0.92rem, 1.7vw, 1.02rem);
  font-weight: 650;
  letter-spacing: -0.012em;
  line-height: 1.48;
}

.research-card .record-project {
  margin-bottom: 0.55rem;
}

.research-card-id {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.research-summary {
  max-width: 70ch;
  margin: 0.75rem 0 0.8rem;
  color: var(--text-soft);
  font-size: 0.84rem;
  line-height: 1.62;
}

.research-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
}

.research-role {
  flex-basis: 100%;
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: 0.63rem;
  font-weight: 700;
  line-height: 1.45;
}

.evidence-note {
  margin-bottom: 2rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
}

.evidence-note p {
  max-width: var(--reading);
  margin: 0;
  font-size: 0.84rem;
}

/* Research publications */

.article-wide-shell {
  width: min(calc(100% - 2rem), 76rem);
  margin-inline: auto;
}

.research-article-hero {
  position: relative;
  z-index: 0;
  padding: calc(var(--header-height) + clamp(2.5rem, 7vw, 5rem)) 0 clamp(2.5rem, 6vw, 4.75rem);
  overflow: clip;
  border-bottom: 1px solid var(--border);
}

.research-article-hero::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  background:
    radial-gradient(circle at 78% 24%, color-mix(in srgb, var(--accent) 13%, transparent), transparent 24rem),
    linear-gradient(180deg, color-mix(in srgb, var(--surface) 22%, transparent), transparent);
  content: "";
}

.research-article-hero::after {
  position: absolute;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 5rem 5rem;
  mask-image: linear-gradient(90deg, transparent 4%, #000 64%, transparent);
  content: "";
  pointer-events: none;
}

.research-hero-copy {
  max-width: 61rem;
}

.research-hero-copy h1 {
  max-width: 19ch;
  margin-bottom: 1rem;
  font-size: clamp(2.25rem, 6vw, 4.55rem);
  font-weight: 710;
  letter-spacing: -0.052em;
  line-height: 1.03;
}

.research-facts {
  display: grid;
  margin: clamp(2.25rem, 5vw, 3.6rem) 0 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.research-facts > div {
  min-width: 0;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border);
}

.research-facts > div:last-child {
  border-bottom: 0;
}

.research-facts dt,
.article-toc > span {
  margin-bottom: 0.22rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.research-facts dd {
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--text-soft);
  font-size: 0.78rem;
  font-weight: 650;
}

.research-article-layout {
  display: grid;
  padding-block: clamp(3.25rem, 8vw, 7rem);
  gap: clamp(2.5rem, 7vw, 5rem);
}

.article-toc {
  display: grid;
  padding: 1rem;
  align-self: start;
  gap: 0.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--surface) 74%, transparent);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(0.7rem);
}

.article-toc > span {
  display: block;
  margin: 0 0 0.45rem;
  padding: 0 0.55rem 0.65rem;
  border-bottom: 1px solid var(--border);
}

.article-toc a {
  padding: 0.43rem 0.55rem;
  border-radius: 0.38rem;
  color: var(--muted);
  font-size: 0.72rem;
  transition: color var(--duration-fast) var(--ease), background-color var(--duration-fast) var(--ease), transform var(--duration-fast) var(--ease-emphasized);
}

.article-toc a:hover {
  color: var(--text);
  background: var(--accent-soft);
  transform: translateX(2px);
}

.research-prose {
  min-width: 0;
  max-width: 49rem;
}

.research-prose-section {
  position: relative;
  padding-top: clamp(1.5rem, 4vw, 2rem);
  scroll-margin-top: calc(var(--header-height) + 1.5rem);
  border-top: 1px solid var(--border);
}

.research-prose-section + .research-prose-section {
  margin-top: clamp(3.75rem, 8vw, 6.5rem);
}

.research-prose-section::before {
  position: absolute;
  top: -1px;
  left: 0;
  width: 3.75rem;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
  content: "";
}

.research-prose-section h2 {
  max-width: 27ch;
  margin-bottom: 1.15rem;
  font-size: clamp(1.65rem, 3.7vw, 2.6rem);
  line-height: 1.12;
}

.research-prose-section p {
  max-width: 70ch;
  font-size: clamp(0.98rem, 1.4vw, 1.06rem);
  line-height: 1.78;
}

.research-prose-section p + p {
  margin-top: 1rem;
}

.research-prose .article-list {
  margin: 1.5rem 0;
}

.research-prose .article-list li {
  font-size: 0.92rem;
  line-height: 1.65;
}

.research-prose code,
.research-facts code {
  padding: 0.08em 0.3em;
  border: 1px solid color-mix(in srgb, var(--border) 76%, transparent);
  border-radius: 0.28rem;
  color: var(--accent-strong);
  background: var(--surface-soft);
  font-family: var(--font-mono);
  font-size: 0.86em;
  overflow-wrap: anywhere;
}

.research-prose pre {
  max-width: 100%;
  margin: 1.5rem 0;
  padding: clamp(1rem, 3vw, 1.35rem);
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-soft);
  background: color-mix(in srgb, var(--bg-deep) 62%, var(--surface));
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--text) 4%, transparent);
  font-family: var(--font-mono);
  font-size: clamp(0.72rem, 1.6vw, 0.82rem);
  line-height: 1.65;
  tab-size: 4;
}

.research-prose pre code {
  padding: 0;
  border: 0;
  color: inherit;
  background: transparent;
  font-size: inherit;
  overflow-wrap: normal;
}

.research-callout {
  margin: 1.65rem 0 0;
  padding: 1.1rem 1.2rem;
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-soft);
  background: var(--accent-soft);
  font-size: 0.86rem;
  line-height: 1.68;
}

.research-callout strong {
  color: var(--text);
}

.research-callout-action {
  border: 1px solid var(--border-strong);
  border-left: 2px solid var(--accent);
  background: linear-gradient(135deg, var(--accent-soft), color-mix(in srgb, var(--surface) 72%, transparent));
}

.responsive-table {
  max-width: 100%;
  margin: 1.5rem 0;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--surface) 76%, transparent);
  box-shadow: var(--shadow-sm);
}

.responsive-table:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.responsive-table table {
  width: 100%;
  min-width: 34rem;
  border-collapse: collapse;
}

.responsive-table th,
.responsive-table td {
  padding: 0.8rem 0.9rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-soft);
  font-size: 0.76rem;
  line-height: 1.5;
  text-align: left;
  vertical-align: top;
}

.responsive-table th {
  color: var(--muted);
  background: var(--surface-soft);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.responsive-table tr:last-child td {
  border-bottom: 0;
}

.technical-flow {
  display: flex;
  margin: 1.5rem 0;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
}

.technical-flow span {
  padding: 0.55rem 0.68rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-soft);
  background: var(--node-bg);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
}

.technical-flow i {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-style: normal;
}

.condition-list {
  display: grid;
  margin: 1.5rem 0;
  list-style: none;
  border-top: 1px solid var(--border);
}

.condition-list li {
  display: grid;
  padding: 0.8rem 0;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: 0.65rem;
  border-bottom: 1px solid var(--border);
}

.condition-list span {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.63rem;
  font-weight: 700;
}

.condition-list p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.55;
}

.flow-comparison {
  display: grid;
  margin: 1.5rem 0;
  gap: 0.65rem;
}

.flow-comparison > div {
  display: grid;
  padding: 0.85rem;
  gap: 0.35rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-soft);
}

.flow-comparison span {
  color: var(--muted);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.flow-comparison code {
  padding: 0;
  border: 0;
  background: transparent;
}

.reference-list {
  display: grid;
  margin: 1.5rem 0 0;
  list-style: none;
  border-top: 1px solid var(--border);
}

.reference-list li {
  border-bottom: 1px solid var(--border);
}

.reference-list a {
  display: flex;
  padding: 0.9rem 0;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 700;
  transition: color var(--duration-fast) var(--ease), padding-left var(--duration-fast) var(--ease-emphasized);
}

.reference-list a:hover {
  padding-left: 0.25rem;
  color: var(--accent);
}

.research-article-nav {
  display: grid;
  margin-top: clamp(4rem, 9vw, 7rem);
  padding-top: 1rem;
  gap: 0.7rem;
  border-top: 1px solid var(--border);
}

.research-article-nav a {
  display: grid;
  padding: 0.9rem;
  gap: 0.16rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--surface) 52%, transparent);
  transition: border-color var(--duration-base) var(--ease), background-color var(--duration-base) var(--ease), transform var(--duration-base) var(--ease-emphasized);
}

.research-article-nav a:hover {
  border-color: var(--border-strong);
  background: var(--accent-soft);
  transform: translateY(-2px);
}

.research-article-nav span {
  color: var(--muted);
  font-size: 0.62rem;
}

.research-article-nav strong {
  color: var(--text-soft);
  font-size: 0.8rem;
}

.research-card-actions {
  display: flex;
  grid-column: 1 / -1;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1.15rem;
}

.research-card-actions .text-link {
  color: var(--muted);
  font-size: 0.68rem;
}

@media (min-width: 36rem) {
  .article-wide-shell {
    width: min(calc(100% - 3rem), 76rem);
  }

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

  .research-facts > div {
    padding: 0.9rem 1rem;
  }

  .research-facts > div:nth-child(odd) {
    padding-left: 0;
    border-right: 1px solid var(--border);
  }

  .research-facts > div:nth-child(4) {
    border-bottom: 0;
  }

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

@media (min-width: 64rem) {
  .research-article-layout {
    grid-template-columns: 12rem minmax(0, 1fr);
    align-items: start;
  }

  .article-toc {
    position: sticky;
    top: calc(var(--header-height) + 1.5rem);
  }
}

@media (min-width: 70rem) {
  .research-facts {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .research-facts > div,
  .research-facts > div:nth-child(odd) {
    padding: 0.95rem 1.1rem;
    border-right: 1px solid var(--border);
    border-bottom: 0;
  }

  .research-facts > div:first-child {
    padding-left: 0;
  }

  .research-facts > div:last-child {
    border-right: 0;
  }
}

/* 15. Animation system */

.js .reveal {
  opacity: 0;
  filter: blur(2px);
  transform: translateY(0.75rem);
  transition: opacity var(--duration-slow) var(--ease), filter var(--duration-slow) var(--ease), transform var(--duration-slow) var(--ease-emphasized);
}

.js .reveal.is-visible {
  opacity: 1;
  filter: blur(0);
  transform: translateY(0);
}

.js .reveal-group > .reveal:nth-child(2) { transition-delay: 55ms; }
.js .reveal-group > .reveal:nth-child(3) { transition-delay: 110ms; }
.js .reveal-group > .reveal:nth-child(4) { transition-delay: 165ms; }
.js .reveal-group > .reveal:nth-child(5) { transition-delay: 220ms; }
.js .reveal-group > .reveal:nth-child(6) { transition-delay: 275ms; }
.js .reveal-group > .reveal:nth-child(7) { transition-delay: 330ms; }

/* 16. Responsive breakpoints */

@media (min-width: 36rem) {
  .container {
    width: min(calc(100% - 3rem), var(--container));
  }

  .article-shell {
    width: min(calc(100% - 3rem), 66rem);
  }

  .preview-contribution {
    grid-template-columns: 2.2rem minmax(0, 1fr) auto;
  }

  .preview-contribution .arrow-link {
    grid-column: 3;
  }

  .oss-shell {
    width: min(calc(100% - 3rem), 70rem);
  }

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

  .back-to-work {
    grid-column: 1 / -1;
  }
}

@media (min-width: 48rem) {
  .section-heading {
    grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.65fr);
    align-items: end;
    gap: 3rem;
  }

  .project-preview-featured {
    grid-template-columns: 2rem minmax(0, 1fr) minmax(9rem, 0.3fr);
    gap: 1rem;
  }

  .project-preview-action {
    align-items: flex-end;
    text-align: right;
  }

  .additional-work,
  .capability-grid,
  .decision-grid,
  .tech-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .disclosure-record {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .disclosure-record .arrow-link {
    grid-column: 1 / -1;
  }

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

  .github-callout {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .footer-layout {
    min-height: 6.5rem;
    align-items: center;
    justify-content: space-between;
    flex-direction: row;
  }

  .architecture-flow {
    flex-direction: row;
    align-items: center;
  }

  .architecture-flow .flow-node {
    min-width: 0;
    flex: 1 1 0;
  }

  .architecture-flow .flow-arrow {
    transform: rotate(-90deg);
  }

  .architecture-flow-long {
    flex-direction: column;
  }

  .architecture-flow-long .flow-arrow {
    transform: none;
  }

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

  .research-card {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 1.35rem 1.5rem;
  }

  .research-card .arrow-link {
    grid-column: 1 / -1;
  }

  .oss-entry {
    grid-template-columns: minmax(0, 1fr) minmax(9rem, 0.35fr) auto;
    align-items: center;
    gap: 1.25rem;
  }

  .oss-entry-action {
    justify-content: flex-end;
  }

  .oss-note,
  .remediation-note,
  .oss-footer-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 56.25rem) {
  :root {
    --header-height: 5rem;
  }

  body.nav-open {
    overflow: auto;
  }

  .nav-toggle {
    display: none;
  }

  .primary-nav,
  .primary-nav.is-open {
    position: static;
    display: flex;
    max-height: none;
    padding: 0;
    align-items: center;
    overflow: visible;
    visibility: visible;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    opacity: 1;
    transform: none;
  }

  .nav-link {
    position: relative;
    padding: 0.45rem 0.5rem;
    background: transparent;
    font-size: 0.72rem;
  }

  .nav-link:hover,
  .nav-link.is-active,
  .nav-link[aria-current="page"] {
    background: transparent;
  }

  .nav-link::after {
    position: absolute;
    right: 0.5rem;
    bottom: 0.16rem;
    left: 0.5rem;
    height: 1px;
    background: var(--accent);
    content: "";
    opacity: 0;
    transform: scaleX(0);
    transform-origin: center;
    transition: opacity var(--duration-base) var(--ease), transform var(--duration-base) var(--ease-emphasized);
  }

  .nav-link:hover::after,
  .nav-link.is-active::after,
  .nav-link[aria-current="page"]::after {
    opacity: 1;
    transform: scaleX(1);
  }

  .nav-link-accent {
    margin-left: 0.25rem;
    border: 1px solid var(--border-strong);
    padding-inline: 0.7rem;
    background: var(--accent-soft);
  }

  .nav-link-accent::after {
    display: none;
  }

  .hero-layout {
    grid-template-columns: minmax(0, 1.12fr) minmax(22rem, 0.88fr);
  }

  .editorial-split,
  .research-layout,
  .journey-layout {
    grid-template-columns: minmax(0, 0.9fr) minmax(25rem, 1.1fr);
    align-items: start;
  }

  .contact-shell {
    grid-template-columns: minmax(0, 0.95fr) minmax(25rem, 1.05fr);
    align-items: start;
  }

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

  .compact-action {
    min-height: 5rem;
  }

  .case-hero-layout {
    grid-template-columns: minmax(0, 1.25fr) minmax(18rem, 0.75fr);
    align-items: end;
    gap: 4rem;
  }

  .case-section {
    grid-template-columns: minmax(13rem, 0.55fr) minmax(0, 1.45fr);
    gap: clamp(2rem, 6vw, 5rem);
  }

  .case-section > .architecture,
  .case-section > .capability-grid,
  .case-section > .decision-grid,
  .case-section > .tech-grid {
    grid-column: 2;
  }
}

@media (min-width: 70rem) {
  .nav-link {
    padding-inline: 0.65rem;
  }

  .nav-link::after {
    right: 0.65rem;
    left: 0.65rem;
  }

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

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

  .oss-preview-list .preview-contribution {
    grid-template-columns: 2.2rem minmax(0, 1fr);
    align-items: start;
  }

  .oss-preview-list .preview-contribution .arrow-link {
    grid-column: 2;
  }

  .expertise-group,
  .expertise-group:nth-child(odd),
  .expertise-group:nth-child(even) {
    padding: 1.35rem;
  }
}

@media (max-width: 47.99rem) {
  .domain-network {
    width: min(100%, 24rem);
  }

  .network-orbit-node {
    animation: none;
    will-change: auto;
  }
}

@media (min-width: 48rem) and (max-width: 56.24rem) {
  .domain-network {
    width: min(100%, 24rem);
  }
}

@media (max-width: 26rem) {
  .network-node {
    min-width: 4.65rem;
    min-height: 4.65rem;
    padding: 0.55rem;
    font-size: 0.66rem;
  }

  .network-core {
    min-width: 5.9rem;
    min-height: 5.9rem;
  }

  .network-open-source {
    min-width: 5.1rem;
    min-height: 5.1rem;
  }

  .contact-actions .button {
    width: 100%;
  }
}

/* 17. Reduced motion and high-contrast support */

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .js .reveal {
    opacity: 1;
    filter: none;
    transform: none;
  }

  .network-orbit-node {
    animation: none !important;
    will-change: auto;
  }

  body::before,
  body::after {
    animation: none !important;
    will-change: auto;
  }

  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation: none !important;
  }
}

@media (forced-colors: active) {
  .brand-mark,
  .network-node,
  .status {
    forced-color-adjust: none;
  }
}