:root {
  color-scheme: light;
  --bg: #fbfbfd;
  --surface: #ffffff;
  --surface-alt: #f5f5f7;
  --surface-blue: #f2f7fd;
  --ink: #1d1d1f;
  --muted: #5f6368;
  --subtle: #6e6e73;
  --line: rgba(60, 60, 67, 0.18);
  --line-strong: rgba(60, 60, 67, 0.3);
  --accent: #0066cc;
  --accent-strong: #004f9e;
  --accent-soft: #eaf3fc;
  --purple: #7357d8;
  --purple-soft: #f3f0ff;
  --green: #218739;
  --green-soft: #edf8f0;
  --night: #111214;
  --night-soft: #1b1d21;
  --night-muted: #a1a1a6;
  --success: #34c759;
  --system: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --shell-width: 1160px;
  --radius-lg: 28px;
  --radius-md: 20px;
  --glass-regular: rgba(255, 255, 255, 0.68);
  --glass-clear: rgba(255, 255, 255, 0.46);
  --glass-border: rgba(255, 255, 255, 0.82);
  --glass-shadow: 0 18px 54px rgba(42, 54, 78, 0.12);
  --shadow-card: 0 18px 50px rgba(29, 29, 31, 0.07);
  --shadow-soft: 0 8px 24px rgba(29, 29, 31, 0.06);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 14% -8%, rgba(0, 122, 255, 0.08), transparent 30rem),
    var(--bg);
  color: var(--ink);
  font-family: var(--system);
  font-size: 16px;
  line-height: 1.55;
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

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

.shell {
  width: min(var(--shell-width), calc(100% - 48px));
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  transform: translateY(-180%);
}

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

.site-header {
  position: sticky;
  z-index: 10;
  top: 12px;
  width: min(var(--shell-width), calc(100% - 48px));
  margin: 12px auto 0;
}

.site-header .shell {
  width: 100%;
}

.header-inner {
  position: relative;
  display: flex;
  min-height: 62px;
  align-items: center;
  gap: 24px;
  padding: 0 14px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.84), var(--glass-clear));
  box-shadow: var(--glass-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.95);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  backdrop-filter: blur(24px) saturate(1.4);
}

.brand {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  white-space: nowrap;
}

.brand-mark {
  display: inline-grid;
  width: 31px;
  height: 31px;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: 10px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: -0.05em;
}

.brand-name {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.site-nav a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 0 11px;
  border-radius: 10px;
  color: var(--muted);
  font-size: 13px;
  transition: background-color 180ms ease, color 180ms ease;
}

.site-nav a:hover {
  background: rgba(255, 255, 255, 0.56);
  color: var(--ink);
}

.header-link {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  gap: 7px;
  padding: 0 15px;
  border: 1px solid rgba(255, 255, 255, 0.84);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.42);
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9), 0 3px 10px rgba(29, 29, 31, 0.04);
  transition: border-color 180ms ease, background-color 180ms ease, transform 180ms ease;
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  backdrop-filter: blur(16px) saturate(1.3);
}

.header-link:hover {
  border-color: var(--accent);
  background: rgba(234, 243, 252, 0.8);
}

.header-link:active {
  transform: scale(0.98);
}

.eyebrow,
.project-meta,
.research-meta,
.footer-bottom {
  margin: 0;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.03em;
  line-height: 1.35;
  text-transform: uppercase;
}

.live-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin: 0 7px 1px 0;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(33, 135, 57, 0.13);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(82px, 11vw, 142px) 0 clamp(86px, 10vw, 128px);
  background:
    radial-gradient(circle at 92% 24%, rgba(0, 102, 204, 0.1), transparent 24rem),
    radial-gradient(circle at 5% 82%, rgba(115, 87, 216, 0.06), transparent 22rem);
}

.hero::before,
.hero::after {
  position: absolute;
  z-index: 0;
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.hero::before {
  top: 4%;
  right: 13%;
  width: 330px;
  height: 330px;
  background: radial-gradient(circle at 35% 30%, rgba(116, 205, 255, 0.34), rgba(135, 103, 255, 0.1) 62%, transparent 72%);
  filter: blur(10px);
  opacity: 0.9;
  animation: ambient-drift 22s ease-in-out infinite alternate;
}

.hero::after {
  bottom: -190px;
  left: 32%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(92, 205, 166, 0.12), transparent 68%);
  filter: blur(18px);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  align-items: center;
  gap: clamp(48px, 8vw, 118px);
}

.hero h1 {
  max-width: 770px;
  margin: 23px 0 25px;
  color: var(--ink);
  font-size: clamp(60px, 8.6vw, 112px);
  font-weight: 700;
  letter-spacing: -0.08em;
  line-height: 0.93;
}

h1 em,
h2 em,
.project-card h3 em {
  color: inherit;
  font-style: normal;
}

.hero-lede {
  max-width: 650px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 21px);
  letter-spacing: -0.015em;
  line-height: 1.55;
}

.hero-actions,
.contact-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 34px;
}

.button,
.text-link,
.project-cta,
.research-arrow,
.archive-row > .text-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.button {
  position: relative;
  overflow: hidden;
  padding: 0 19px;
  border: 1px solid transparent;
  border-radius: 999px;
  isolation: isolate;
}

.button-primary {
  background: linear-gradient(180deg, #1477d5, var(--accent));
  color: #fff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35), 0 8px 18px rgba(0, 102, 204, 0.2);
}

.button-primary:hover {
  background: var(--accent-strong);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.42), 0 10px 22px rgba(0, 102, 204, 0.24);
  transform: translateY(-1px);
}

.button-secondary {
  border-color: var(--glass-border);
  background: rgba(255, 255, 255, 0.5);
  color: var(--ink);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9), 0 4px 14px rgba(29, 29, 31, 0.04);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  backdrop-filter: blur(16px) saturate(1.3);
}

.button-secondary:hover {
  border-color: var(--accent);
  background: rgba(234, 243, 252, 0.8);
  color: var(--accent-strong);
}

.button:active {
  transform: scale(0.98);
}

.hero-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 54px;
  color: var(--subtle);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.5;
}

.hero-note-rule {
  width: 28px;
  height: 1px;
  background: var(--line-strong);
}

.chapter-card {
  position: relative;
  overflow: hidden;
  width: min(100%, 450px);
  justify-self: end;
  padding: 28px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.52));
  box-shadow: var(--glass-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.94);
  -webkit-backdrop-filter: blur(28px) saturate(1.35);
  backdrop-filter: blur(28px) saturate(1.35);
}

.chapter-topline,
.project-meta,
.research-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.chapter-profile {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-top: 25px;
}

.profile-avatar {
  width: 64px;
  height: 64px;
  flex: 0 0 auto;
  border: 2px solid var(--surface);
  border-radius: 50%;
  background: var(--surface-alt);
  box-shadow: 0 0 0 1px var(--line), 0 8px 20px rgba(29, 29, 31, 0.1);
  object-fit: cover;
  transition: box-shadow 180ms ease, transform 180ms ease;
}

.chapter-profile-copy {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.chapter-profile-copy strong {
  color: var(--ink);
  font-size: 15px;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.chapter-profile-copy span {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1.4;
}

.chapter-profile:hover .profile-avatar {
  box-shadow: 0 0 0 1px var(--accent), 0 10px 24px rgba(0, 102, 204, 0.14);
  transform: translateY(-1px);
}

.chapter-profile:hover .chapter-profile-copy span {
  color: var(--accent);
}

.chapter-topline {
  color: var(--subtle);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.chapter-heading {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin: 32px 0 34px;
}

.chapter-mark {
  display: grid;
  width: 56px;
  height: 56px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 18px;
  background: var(--ink);
  color: #fff;
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 600;
}

.chapter-heading h2 {
  margin: 0;
  font-size: 29px;
  font-weight: 700;
  letter-spacing: -0.06em;
  line-height: 1.03;
}

.chapter-heading p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.chapter-list {
  display: grid;
  gap: 22px;
  padding: 22px 0 25px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.chapter-row {
  display: grid;
  grid-template-columns: 10px 1fr;
  gap: 14px;
  align-items: start;
}

.chapter-dot {
  width: 10px;
  height: 10px;
  margin-top: 5px;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
}

.chapter-dot-blue {
  background: var(--accent);
}

.chapter-dot-purple {
  background: var(--purple);
  box-shadow: 0 0 0 4px rgba(115, 87, 216, 0.1);
}

.chapter-dot-green {
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(33, 135, 57, 0.1);
}

.chapter-label,
.chapter-value,
.chapter-footnote {
  margin: 0;
}

.chapter-label {
  color: var(--subtle);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.chapter-value {
  margin-top: 3px;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.35;
}

.chapter-value strong {
  font-weight: 650;
}

.chapter-footnote {
  margin-top: 20px;
  color: var(--subtle);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.5;
}

.about-section,
.focus-section,
.work-section,
.research-section,
.signals-section,
.contact-section {
  border-top: 1px solid var(--line);
}

.about-section {
  padding: 112px 0 106px;
  background: var(--surface);
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 48px;
  margin-bottom: 48px;
}

.section-heading-split {
  align-items: flex-start;
}

.section-heading h2,
.signals-section h2,
.contact-card h2 {
  margin: 0;
  font-size: clamp(43px, 5vw, 70px);
  font-weight: 700;
  letter-spacing: -0.075em;
  line-height: 0.97;
}

.section-intro {
  max-width: 370px;
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.55;
}

.section-intro code {
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.9em;
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(350px, 0.88fr);
  gap: clamp(48px, 8vw, 120px);
  align-items: start;
}

.about-copy {
  max-width: 610px;
}

.about-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 20px;
  letter-spacing: -0.02em;
  line-height: 1.55;
}

.about-copy p + p {
  margin-top: 24px;
  font-size: 16px;
  letter-spacing: 0;
}

.facts {
  border-top: 1px solid var(--line);
}

.fact-row {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.fact-year {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.4;
  text-transform: uppercase;
}

.fact-row strong,
.fact-row span:not(.fact-year) {
  display: block;
}

.fact-row strong {
  color: var(--ink);
  font-size: 15px;
  line-height: 1.35;
}

.fact-row span:not(.fact-year) {
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.35;
}

.throughline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 72px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-alt);
  color: var(--ink);
  font-size: 14px;
}

.throughline-label {
  margin-right: 8px;
  color: var(--subtle);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.throughline i {
  color: var(--accent);
  font-style: normal;
}

.focus-section {
  padding: 116px 0 126px;
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.focus-card {
  min-height: 316px;
  padding: 27px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.82) inset, var(--shadow-soft);
}

.focus-card-blue {
  background: linear-gradient(145deg, rgba(242, 248, 255, 0.94), rgba(255, 255, 255, 0.82));
}

.focus-card-purple {
  background: linear-gradient(145deg, rgba(246, 243, 255, 0.94), rgba(255, 255, 255, 0.82));
}

.focus-card-green {
  background: linear-gradient(145deg, rgba(240, 250, 243, 0.94), rgba(255, 255, 255, 0.82));
}

.focus-card h3 {
  margin: 0 0 15px;
  color: var(--ink);
  font-size: 27px;
  font-weight: 700;
  letter-spacing: -0.06em;
  line-height: 1.03;
}

.focus-card p {
  max-width: 330px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.work-section {
  padding: 116px 0 128px;
  background: var(--surface);
}

.text-link {
  min-height: 44px;
  color: var(--accent);
  font-size: 13px;
}

.text-link:hover,
.project-cta:hover,
.research-arrow:hover,
.archive-row > .text-link:hover {
  color: var(--accent-strong);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.project-card {
  min-height: 278px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.84), rgba(247, 249, 252, 0.9));
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.project-card:hover {
  border-color: rgba(0, 102, 204, 0.48);
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}

.project-card-link {
  display: flex;
  min-height: 276px;
  flex-direction: column;
  padding: 24px;
}

.project-meta {
  justify-content: flex-end;
  color: var(--subtle);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1;
}

.project-meta span {
  color: var(--accent);
}

.project-card h3 {
  margin: 28px 0 12px;
  color: var(--ink);
  font-size: 25px;
  font-weight: 700;
  letter-spacing: -0.06em;
  line-height: 1.04;
}

.project-card h3 em {
  color: inherit;
  font-weight: 700;
}

.project-card p {
  max-width: 320px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.project-cta {
  min-height: auto;
  margin-top: auto;
  padding-top: 26px;
  color: var(--accent);
  font-size: 12px;
}

.archive-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-top: 86px;
  padding-top: 23px;
  border-top: 1px solid var(--line);
}

.archive-row p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.archive-row > .text-link {
  flex: 0 0 auto;
  min-height: auto;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
}

.research-section {
  padding: 116px 0 128px;
}

.research-list {
  border-top: 1px solid var(--line);
}

.research-row {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) 30px;
  gap: 22px;
  align-items: start;
  padding: 30px 0 31px;
  border-bottom: 1px solid var(--line);
}

.research-index {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
}

.research-meta {
  justify-content: flex-start;
  gap: 17px;
  color: var(--subtle);
  font-size: 10px;
  font-weight: 500;
}

.research-meta span + span::before {
  margin-right: 17px;
  color: var(--line-strong);
  content: "/";
}

.research-main h3 {
  max-width: 800px;
  margin: 13px 0 8px;
  color: var(--ink);
  font-size: 23px;
  font-weight: 650;
  letter-spacing: -0.045em;
  line-height: 1.12;
}

.research-main p {
  max-width: 750px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.research-arrow {
  min-height: auto;
  justify-content: flex-end;
  padding-top: 6px;
  color: var(--accent);
  font-size: 17px;
}

.signals-section {
  padding: 112px 0 116px;
  background: var(--surface);
}

.signals-layout {
  display: grid;
  grid-template-columns: minmax(240px, 0.65fr) minmax(0, 1fr);
  gap: clamp(54px, 10vw, 150px);
}

.signals-content {
  border-top: 1px solid var(--line);
}

.signal-row {
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr) 30px;
  gap: 18px;
  align-items: start;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.signal-date {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
}

.signal-row strong {
  display: block;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.35;
}

.signal-row p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.signal-row a,
.signal-placeholder {
  color: var(--accent);
  font-size: 17px;
  line-height: 1.2;
  text-align: right;
}

.signal-placeholder {
  color: var(--line-strong);
}

.contact-section {
  padding: 112px 0 118px;
}

.contact-card {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr);
  gap: clamp(48px, 9vw, 130px);
  padding: clamp(34px, 6vw, 68px);
  border: 1px solid var(--glass-border);
  border-radius: 32px;
  background:
    radial-gradient(circle at 92% 8%, rgba(0, 102, 204, 0.14), transparent 18rem),
    linear-gradient(145deg, rgba(246, 250, 255, 0.94), rgba(255, 255, 255, 0.74));
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.contact-copy {
  align-self: end;
  max-width: 500px;
}

.contact-copy > p {
  margin: 0;
  color: var(--muted);
  font-size: 19px;
  letter-spacing: -0.02em;
  line-height: 1.5;
}

.contact-links {
  margin-top: 27px;
}

.site-footer {
  padding: 34px 0 30px;
  background: var(--surface);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.footer-brand {
  color: var(--ink);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.06em;
}

.footer-brand span {
  color: var(--accent);
}

.footer-links {
  display: flex;
  justify-content: flex-end;
  gap: 25px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
}

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

.footer-bottom {
  display: flex;
  grid-column: 1 / -1;
  justify-content: space-between;
  gap: 20px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--subtle);
  font-size: 10px;
  font-weight: 500;
  text-transform: none;
}

@keyframes ambient-drift {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }

  to {
    transform: translate3d(-18px, 15px, 0) scale(1.06);
  }
}

@media (prefers-contrast: more) {
  :root {
    --line: rgba(60, 60, 67, 0.42);
    --muted: #4f5155;
  }

  .chapter-card,
  .focus-card,
  .project-card,
  .contact-card,
  .header-link,
  .button-secondary {
    border-width: 2px;
  }

  .header-inner,
  .chapter-card,
  .button-secondary {
    background: var(--surface);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
}

@media (prefers-reduced-transparency: reduce) {
  .header-inner,
  .chapter-card,
  .button-secondary {
    background: var(--surface);
    box-shadow: var(--shadow-soft);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
}

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 0.82fr);
    gap: 42px;
  }

  .about-layout,
  .contact-card,
  .signals-layout {
    gap: 52px;
  }

}

@media (max-width: 820px) {
  .site-nav a[href="#research"] {
    display: none;
  }

  .hero-grid,
  .about-layout,
  .contact-card,
  .signals-layout {
    grid-template-columns: 1fr;
  }

  .chapter-card {
    width: 100%;
    justify-self: stretch;
  }

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

  .focus-card:last-child,
  .project-card:last-child {
    grid-column: 1 / -1;
  }

  .section-heading-split {
    display: block;
  }

  .section-heading-split .section-intro {
    margin-top: 22px;
  }

  .signals-layout {
    gap: 48px;
  }
}

@media (max-width: 620px) {
  .shell {
    width: min(100% - 36px, 600px);
  }

  .site-header {
    width: calc(100% - 36px);
  }

  .header-inner {
    min-height: 60px;
    gap: 12px;
    padding: 0 10px;
  }

  .brand-name {
    display: none;
  }

  .site-nav {
    gap: 0;
  }

  .site-nav a {
    padding: 0 7px;
    font-size: 12px;
  }

  .header-link {
    padding: 0 12px;
    font-size: 12px;
  }

  .hero {
    padding-top: 76px;
  }

  .hero h1 {
    font-size: clamp(55px, 17vw, 88px);
  }

  .hero-lede {
    font-size: 18px;
  }

  .section-heading h2,
  .signals-section h2,
  .contact-card h2 {
    font-size: clamp(42px, 13vw, 64px);
  }

  .about-copy p {
    font-size: 19px;
  }

  .focus-grid,
  .project-grid {
    grid-template-columns: 1fr;
  }

  .focus-card:last-child,
  .project-card:last-child {
    grid-column: auto;
  }

  .research-row {
    grid-template-columns: 30px minmax(0, 1fr) 22px;
    gap: 12px;
  }

  .research-main h3 {
    font-size: 20px;
  }

  .research-meta {
    display: block;
    line-height: 1.7;
  }

  .research-meta span + span::before {
    margin: 0 8px;
  }

  .signal-row {
    grid-template-columns: 50px minmax(0, 1fr) 22px;
    gap: 12px;
  }

  .archive-row {
    display: block;
  }

  .archive-row > .text-link {
    margin-top: 20px;
  }

  .contact-card {
    gap: 42px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .footer-links {
    justify-content: flex-start;
  }

  .footer-bottom {
    margin-top: 15px;
  }
}

@media (max-width: 460px) {
  .shell {
    width: min(100% - 28px, 600px);
  }

  .site-header {
    width: calc(100% - 28px);
  }

  .site-nav a[href="#contact"] {
    display: none;
  }

  .header-link {
    min-width: 40px;
    justify-content: center;
    padding: 0 9px;
  }

  .header-link span {
    display: none;
  }

  .hero-actions,
  .contact-links {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    justify-content: center;
  }

  .chapter-card,
  .contact-card {
    padding: 23px;
  }

  .chapter-heading h2 {
    font-size: 25px;
  }

  .throughline {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .throughline-label {
    margin-bottom: 5px;
  }

  .throughline i {
    display: none;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
}

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

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