@import url("https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,500;12..96,600;12..96,700&family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@400;500;600&display=swap");

:root {
  --paper: #f3f0e7;
  --paper-strong: #fffdf7;
  --ink: #0a2530;
  --ink-soft: #31505a;
  --night: #071c25;
  --night-soft: #102f3a;
  --line: rgba(10, 37, 48, 0.16);
  --line-light: rgba(255, 255, 255, 0.17);
  --orange: #ff6534;
  --orange-dark: #dc471d;
  --teal: #0d897a;
  --teal-light: #86d8c6;
  --yellow: #f5c84b;
  --white: #fffdf7;
  --shadow: 0 30px 80px rgba(7, 28, 37, 0.12);
  --radius: 28px;
  --radius-small: 16px;
  --display: "Bricolage Grotesque", sans-serif;
  --body: "IBM Plex Sans", sans-serif;
  --mono: "IBM Plex Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 110px;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 4%, rgba(245, 200, 75, 0.28), transparent 25rem),
    radial-gradient(circle at 94% 18%, rgba(13, 137, 122, 0.14), transparent 28rem),
    var(--paper);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  opacity: 0.25;
  background-image: radial-gradient(rgba(10, 37, 48, 0.22) 0.7px, transparent 0.7px);
  background-size: 22px 22px;
  pointer-events: none;
}

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

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

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

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

.shell {
  width: min(1220px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 14px 0;
  background: rgba(243, 240, 231, 0.86);
  border-bottom: 1px solid rgba(10, 37, 48, 0.08);
  backdrop-filter: blur(18px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 58px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}

.brand img {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.brand-copy {
  display: grid;
  line-height: 1.1;
}

.brand-name {
  font-family: var(--display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.035em;
}

.brand-note {
  margin-top: 5px;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
}

.nav-link {
  padding: 10px 12px;
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: color 180ms ease, background 180ms ease;
}

.nav-link:hover,
.nav-link.site-active {
  color: var(--ink);
  background: rgba(10, 37, 48, 0.07);
}

.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink);
  background: var(--paper-strong);
  cursor: pointer;
}

.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  content: "";
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle[aria-expanded="true"] span {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"]::before {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"]::after {
  transform: translateY(-6px) rotate(-45deg);
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 11px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  background: rgba(255, 253, 247, 0.6);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
  background: var(--paper-strong);
  box-shadow: 0 12px 28px rgba(7, 28, 37, 0.11);
}

.button.primary {
  border-color: var(--orange);
  color: white;
  background: var(--orange);
}

.button.primary:hover {
  border-color: var(--orange-dark);
  background: var(--orange-dark);
}

.button.dark {
  border-color: var(--night);
  color: var(--white);
  background: var(--night);
}

.button.compact {
  min-height: 42px;
  padding-inline: 16px;
}

.arrow {
  font-family: var(--mono);
  transition: transform 180ms ease;
}

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

main {
  overflow: clip;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(360px, 0.8fr);
  gap: 32px;
  align-items: center;
  min-height: 720px;
  padding: 86px 0 70px;
}

.hero-copy {
  position: relative;
}

.kicker,
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--teal);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.kicker::before,
.eyebrow::before {
  width: 26px;
  height: 2px;
  content: "";
  background: currentColor;
}

.status-kicker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  background: rgba(255, 253, 247, 0.6);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.status-pill::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  content: "";
  background: var(--teal);
  box-shadow: 0 0 0 4px rgba(13, 137, 122, 0.12);
}

.status-pill.safe::before {
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 101, 52, 0.12);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--display);
  line-height: 1.05;
  text-wrap: balance;
}

h1 {
  max-width: 820px;
  font-size: clamp(55px, 7.2vw, 100px);
  letter-spacing: -0.066em;
}

h2 {
  max-width: 800px;
  font-size: clamp(40px, 5vw, 68px);
  letter-spacing: -0.052em;
}

h3 {
  font-size: 25px;
  letter-spacing: -0.035em;
}

.hero-lead {
  max-width: 720px;
  margin: 30px 0 0;
  color: var(--ink-soft);
  font-size: clamp(19px, 2vw, 23px);
  line-height: 1.55;
}

.hero-lead strong {
  color: var(--ink);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.fine-print {
  margin: 18px 0 0;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 11px;
}

.hero-system {
  position: relative;
  min-height: 570px;
  padding: 24px;
  border-radius: 34px;
  color: var(--white);
  background:
    radial-gradient(circle at 80% 12%, rgba(134, 216, 198, 0.2), transparent 16rem),
    linear-gradient(155deg, var(--night-soft), var(--night));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-system::before {
  position: absolute;
  inset: 0;
  content: "";
  opacity: 0.24;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 36px 36px;
}

.system-head,
.system-foot {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.system-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.system-live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--teal-light);
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
}

.system-live::before {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  content: "";
  background: var(--teal-light);
  box-shadow: 0 0 0 6px rgba(134, 216, 198, 0.12);
  animation: pulse 2.8s ease-in-out infinite;
}

.decision-stack {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 12px;
  margin: 54px 0 46px;
}

.decision-step {
  display: grid;
  grid-template-columns: 42px 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 15px;
  border: 1px solid var(--line-light);
  border-radius: 17px;
  background: rgba(255, 255, 255, 0.055);
  backdrop-filter: blur(6px);
}

.decision-index {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 50%;
  color: var(--night);
  background: var(--yellow);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
}

.decision-step strong {
  display: block;
  font-family: var(--display);
  font-size: 17px;
}

.decision-step small {
  display: block;
  margin-top: 2px;
  color: rgba(255, 253, 247, 0.62);
  font-size: 12px;
}

.decision-state {
  color: var(--teal-light);
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
}

.decision-state.blocked {
  color: #ff9c79;
}

.system-foot {
  padding-top: 18px;
  border-top: 1px solid var(--line-light);
  color: rgba(255, 253, 247, 0.72);
  font-family: var(--mono);
  font-size: 10px;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 10px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 253, 247, 0.74);
  box-shadow: 0 18px 50px rgba(7, 28, 37, 0.06);
  overflow: hidden;
}

.metric {
  min-height: 145px;
  padding: 27px;
  border-right: 1px solid var(--line);
}

.metric:last-child {
  border-right: 0;
}

.metric-value {
  font-family: var(--display);
  font-size: clamp(38px, 4vw, 56px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.05em;
}

.metric-label {
  margin-top: 12px;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.45;
  text-transform: uppercase;
}

.section {
  padding: 118px 0;
}

.section.tight {
  padding: 82px 0;
}

.section.dark {
  color: var(--white);
  background: var(--night);
}

.full-bleed {
  width: 100%;
  border-radius: 44px;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(360px, 0.45fr);
  gap: 60px;
  align-items: end;
  margin-bottom: 52px;
}

.section-heading p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 19px;
}

.dark .section-heading p,
.dark .muted {
  color: rgba(255, 253, 247, 0.66);
}

.eyebrow {
  margin-bottom: 17px;
}

.grid {
  display: grid;
  gap: 18px;
}

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

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

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

.card {
  position: relative;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 253, 247, 0.68);
  overflow: hidden;
}

.card p {
  margin: 17px 0 0;
  color: var(--ink-soft);
}

.card-number {
  display: inline-flex;
  margin-bottom: 46px;
  color: var(--orange);
  font-family: var(--mono);
  font-size: 12px;
}

.card-accent::after {
  position: absolute;
  right: -44px;
  bottom: -64px;
  width: 150px;
  height: 150px;
  border: 24px solid rgba(13, 137, 122, 0.1);
  border-radius: 50%;
  content: "";
}

.card.dark-card {
  border-color: var(--line-light);
  color: var(--white);
  background: rgba(255, 255, 255, 0.055);
}

.card.dark-card p {
  color: rgba(255, 253, 247, 0.66);
}

.layer-list {
  display: grid;
  gap: 14px;
}

.layer {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 253, 247, 0.64);
}

.layer-code {
  color: var(--teal);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
}

.layer h3 {
  font-size: 22px;
}

.layer p {
  margin: 5px 0 0;
  color: var(--ink-soft);
  font-size: 15px;
}

.tag {
  display: inline-flex;
  padding: 6px 9px;
  border-radius: 999px;
  color: var(--teal);
  background: rgba(13, 137, 122, 0.1);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.tag.orange {
  color: var(--orange-dark);
  background: rgba(255, 101, 52, 0.1);
}

.evidence {
  border: 1px solid var(--line-light);
  border-radius: 24px;
  overflow: hidden;
}

.evidence-row {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1.6fr;
  border-bottom: 1px solid var(--line-light);
}

.evidence-row:last-child {
  border-bottom: 0;
}

.evidence-row > div {
  padding: 18px 22px;
}

.evidence-row > div + div {
  border-left: 1px solid var(--line-light);
}

.evidence-row.head {
  color: rgba(255, 253, 247, 0.55);
  background: rgba(255, 255, 255, 0.045);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.evidence-row strong {
  font-family: var(--display);
  font-size: 18px;
}

.evidence-row span {
  color: rgba(255, 253, 247, 0.66);
  font-size: 14px;
}

.path {
  counter-reset: path;
}

.path-step {
  position: relative;
  padding: 32px 30px 32px 84px;
  border-top: 1px solid var(--line);
  counter-increment: path;
}

.path-step::before {
  position: absolute;
  top: 31px;
  left: 25px;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 50%;
  color: white;
  content: counter(path, decimal-leading-zero);
  background: var(--teal);
  font-family: var(--mono);
  font-size: 10px;
}

.path-step h3 {
  font-size: 25px;
}

.path-step p {
  max-width: 760px;
  margin: 10px 0 0;
  color: var(--ink-soft);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.team-grid.single {
  grid-template-columns: minmax(0, 760px);
}

.validation-update {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 30px 54px;
  align-items: end;
  margin-top: 28px;
  padding: 34px;
  border: 1px solid rgba(13, 137, 122, 0.22);
  border-radius: 30px;
  background:
    radial-gradient(circle at 92% 6%, rgba(245, 200, 75, 0.22), transparent 17rem),
    rgba(255, 253, 247, 0.78);
  box-shadow: 0 18px 50px rgba(7, 28, 37, 0.06);
}

.validation-update h2 {
  max-width: 780px;
  margin-top: 10px;
  font-size: clamp(31px, 3.5vw, 48px);
}

.validation-update > p {
  grid-column: 1 / -1;
  max-width: 940px;
  margin: 0;
  color: var(--ink-soft);
}

.validation-update-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
}

.validation-update-grid div {
  padding: 18px;
  border-right: 1px solid var(--line);
}

.validation-update-grid div:last-child {
  border-right: 0;
}

.validation-update-grid strong,
.validation-update-grid span {
  display: block;
}

.validation-update-grid strong {
  color: var(--teal);
  font-family: var(--display);
  font-size: 30px;
}

.validation-update-grid span {
  margin-top: 5px;
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.35;
}

.person {
  min-height: 350px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.person-mark {
  display: grid;
  width: 64px;
  height: 64px;
  place-items: center;
  margin-bottom: 56px;
  border-radius: 18px;
  color: white;
  background: var(--ink);
  font-family: var(--display);
  font-size: 22px;
  font-weight: 700;
}

.person-role {
  margin-bottom: 8px;
  color: var(--teal);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.person p {
  min-height: 78px;
}

.person-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 22px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  text-decoration: none;
  text-transform: uppercase;
}

.ask-panel {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 42px;
  align-items: center;
  padding: 54px;
  border-radius: 36px;
  color: var(--white);
  background:
    radial-gradient(circle at 84% 16%, rgba(245, 200, 75, 0.22), transparent 18rem),
    var(--night);
  box-shadow: var(--shadow);
}

.ask-panel h2 {
  font-size: clamp(40px, 5vw, 68px);
}

.ask-panel p {
  max-width: 720px;
  color: rgba(255, 253, 247, 0.7);
}

.ask-list {
  display: grid;
  gap: 10px;
}

.ask-item {
  padding: 16px 18px;
  border: 1px solid var(--line-light);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.05);
  font-size: 14px;
}

.site-footer {
  padding: 56px 0 36px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: start;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.footer-copy {
  max-width: 720px;
  color: var(--ink-soft);
  font-size: 13px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
  font-family: var(--mono);
  font-size: 11px;
}

.footer-links a {
  text-decoration: none;
}

.page-hero {
  display: grid;
  grid-template-columns: 1fr 0.4fr;
  gap: 50px;
  align-items: end;
  padding: 96px 0 72px;
  border-bottom: 1px solid var(--line);
}

.page-hero h1 {
  max-width: 900px;
  font-size: clamp(50px, 7vw, 88px);
}

.page-hero p {
  margin: 25px 0 0;
  color: var(--ink-soft);
  font-size: 21px;
}

.page-meta {
  display: grid;
  gap: 12px;
}

.meta-row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
}

.meta-row span:first-child {
  color: var(--ink-soft);
  text-transform: uppercase;
}

.principles {
  display: grid;
  grid-template-columns: 0.55fr 1fr;
  gap: 60px;
}

.principles-list {
  display: grid;
  gap: 0;
}

.principle {
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.principle:first-child {
  border-top: 0;
}

.principle p {
  margin: 10px 0 0;
  color: var(--ink-soft);
}

.brief-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: 42px;
  align-items: start;
  padding: 74px 0 110px;
}

.brief-main {
  display: grid;
  gap: 18px;
}

.brief-block {
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 253, 247, 0.72);
}

.brief-block h2 {
  font-size: 35px;
}

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

.brief-block ul {
  margin: 20px 0 0;
  padding-left: 19px;
}

.brief-block li + li {
  margin-top: 9px;
}

.brief-side {
  position: sticky;
  top: 100px;
  display: grid;
  gap: 14px;
}

.snapshot {
  padding: 26px;
  border-radius: 22px;
  color: var(--white);
  background: var(--night);
}

.snapshot h3 {
  margin-bottom: 18px;
}

.snapshot .meta-row {
  border-color: var(--line-light);
}

.snapshot .meta-row span:first-child {
  color: rgba(255, 253, 247, 0.55);
}

.snapshot .meta-row span:last-child {
  text-align: right;
}

.research-matrix {
  display: grid;
  gap: 12px;
}

.research-item {
  display: grid;
  grid-template-columns: 1fr 0.55fr 1.35fr;
  gap: 18px;
  align-items: center;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 253, 247, 0.64);
}

.research-item strong {
  font-family: var(--display);
  font-size: 19px;
}

.research-item p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.callout {
  padding: 26px 28px;
  border-left: 5px solid var(--orange);
  border-radius: 0 18px 18px 0;
  background: rgba(255, 101, 52, 0.08);
}

.callout strong {
  font-family: var(--display);
  font-size: 22px;
}

.callout p {
  margin: 8px 0 0;
  color: var(--ink-soft);
}

.reveal {
  opacity: 1;
  transform: none;
  animation: reveal-in 650ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@keyframes reveal-in {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.65;
    transform: scale(0.9);
  }
  50% {
    opacity: 1;
    transform: scale(1.08);
  }
}

@media (max-width: 980px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 1px);
    right: 20px;
    left: 20px;
    display: none;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: rgba(255, 253, 247, 0.97);
    box-shadow: var(--shadow);
  }

  .nav-links.open {
    display: grid;
  }

  .nav-link,
  .nav-links .button {
    width: 100%;
    justify-content: flex-start;
    padding: 13px 15px;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 66px;
  }

  .hero-system {
    min-height: auto;
  }

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

  .metric:nth-child(2) {
    border-right: 0;
  }

  .metric:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .section-heading,
  .page-hero,
  .principles,
  .brief-layout,
  .ask-panel,
  .validation-update {
    grid-template-columns: 1fr;
  }

  .brief-side {
    position: static;
    grid-row: 1;
  }

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

@media (max-width: 700px) {
  body {
    font-size: 16px;
  }

  .shell {
    width: min(100% - 26px, 1220px);
  }

  .brand-note {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 48px 0 56px;
  }

  h1 {
    font-size: clamp(49px, 15vw, 72px);
  }

  h2 {
    font-size: clamp(38px, 11vw, 54px);
  }

  .hero-system {
    padding: 18px;
    border-radius: 26px;
  }

  .decision-step {
    grid-template-columns: 38px 1fr;
  }

  .decision-state {
    grid-column: 2;
  }

  .metrics,
  .grid.two,
  .grid.three,
  .grid.four,
  .team-grid,
  .validation-update-grid {
    grid-template-columns: 1fr;
  }

  .validation-update-grid div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .validation-update-grid div:last-child {
    border-bottom: 0;
  }

  .metric {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .metric:last-child {
    border-bottom: 0;
  }

  .section {
    padding: 86px 0;
  }

  .section-heading {
    gap: 24px;
    margin-bottom: 36px;
  }

  .layer {
    grid-template-columns: 46px 1fr;
    padding: 20px;
  }

  .layer .tag {
    grid-column: 2;
    justify-self: start;
  }

  .evidence {
    border: 0;
    overflow: visible;
  }

  .evidence-row {
    grid-template-columns: 1fr;
    margin-bottom: 12px;
    border: 1px solid var(--line-light);
    border-radius: 18px;
    overflow: hidden;
  }

  .evidence-row.head {
    display: none;
  }

  .evidence-row > div + div {
    border-top: 1px solid var(--line-light);
    border-left: 0;
  }

  .person {
    min-height: 310px;
  }

  .ask-panel {
    padding: 32px 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  .page-hero {
    gap: 34px;
    padding: 70px 0 52px;
  }

  .research-item {
    grid-template-columns: 1fr;
  }
}

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

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

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

@media print {
  @page {
    margin: 12mm;
    size: A4;
  }

  body {
    color: #000;
    background: white;
    font-size: 11pt;
  }

  body::before,
  .site-header,
  .site-footer,
  .no-print,
  .brief-side .actions {
    display: none !important;
  }

  .shell {
    width: 100%;
  }

  .page-hero {
    padding: 0 0 10mm;
  }

  .page-hero h1 {
    font-size: 38pt;
  }

  .brief-layout {
    grid-template-columns: 1fr;
    gap: 6mm;
    padding: 8mm 0 0;
  }

  .brief-side {
    position: static;
    grid-row: 1;
  }

  .snapshot,
  .brief-block {
    break-inside: avoid;
    border: 1px solid #bbb;
    color: #000;
    background: white;
    box-shadow: none;
  }

  .snapshot .meta-row,
  .meta-row {
    border-color: #ccc;
  }

  .snapshot .meta-row span:first-child,
  .snapshot .meta-row span:last-child {
    color: #000;
  }
}