:root {
  --ink: #f1f2f4;
  --muted: rgba(241, 242, 244, 0.7);
  --soft: rgba(241, 242, 244, 0.42);
  --signature-green: #5f6552;
  --signature-green-2: #738872;
  --dark-green: #515b4b;
  --night: #000;
  --black-second: #161615;
  --cream: #dfddd5;
  --line: rgba(241, 242, 244, 0.2);
  --panel: rgba(241, 242, 244, 0.055);
  --shadow: 0 32px 90px rgba(0, 0, 0, 0.5);
}

@font-face {
  font-family: "GT Sectra Display";
  src: url("assets/kar-ci/gt-sectra-display-light.woff2") format("woff2");
  font-weight: 300;
  font-style: normal;
}

@font-face {
  font-family: "GT Sectra Display";
  src: url("assets/kar-ci/gt-sectra-display-regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
}

@font-face {
  font-family: "GT Sectra Display";
  src: url("assets/kar-ci/gt-sectra-display-bold-italic.woff2") format("woff2");
  font-weight: 700;
  font-style: italic;
}

@font-face {
  font-family: "GT Flexa Mono";
  src: url("assets/kar-ci/gt-flexa-mono-light.woff2") format("woff2");
  font-weight: 300;
  font-style: normal;
}

* {
  box-sizing: border-box;
  min-width: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 112px;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 88% 8%, rgba(115, 136, 114, 0.34), transparent 23rem),
    radial-gradient(circle at 6% 92%, rgba(95, 101, 82, 0.28), transparent 30rem),
    linear-gradient(135deg, #000 0%, #07100d 42%, var(--black-second) 100%);
  font-family: "GT Flexa Mono", "Helvetica Neue", Arial, sans-serif;
  font-weight: 300;
}

body.page-occ {
  background:
    radial-gradient(circle at 82% 16%, rgba(115, 136, 114, 0.34), transparent 24rem),
    radial-gradient(circle at 12% 88%, rgba(86, 95, 129, 0.2), transparent 28rem),
    linear-gradient(135deg, #000 0%, #04110e 45%, #161615 100%);
}

body.page-deuvet {
  background:
    radial-gradient(circle at 84% 18%, rgba(95, 101, 82, 0.3), transparent 22rem),
    radial-gradient(circle at 10% 86%, rgba(115, 136, 114, 0.25), transparent 30rem),
    linear-gradient(135deg, #000 0%, #09120f 45%, #161615 100%);
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(241, 242, 244, 0.12);
  background: rgba(0, 0, 0, 0.78);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 1 auto;
  min-width: 0;
}

.brand-k {
  width: 42px;
  height: 42px;
  object-fit: contain;
  border-radius: 50%;
  opacity: 0.98;
}

.brand-kar {
  color: var(--ink);
  font-family: "GT Flexa Mono", "Helvetica Neue", Arial, sans-serif;
  font-size: 2.25rem;
  font-weight: 300;
  line-height: 0.86;
  letter-spacing: 0.06em;
}

.brand-kar sup {
  position: relative;
  top: -0.72em;
  margin-left: 0.08em;
  font-size: 0.28em;
  letter-spacing: 0;
}

.inline-tm {
  position: relative;
  top: -0.45em;
  margin-left: 0.04em;
  font-size: 0.42em;
  line-height: 0;
}

.brand-powered {
  margin-left: 4px;
  color: var(--soft);
  font-size: 0.58rem;
  line-height: 1;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transform: translateY(0.48rem);
}

.brand-kukuk {
  width: 58px;
  height: auto;
  object-fit: contain;
  transform: translateY(0.32rem);
}

.nav {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  font-weight: 300;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav a {
  min-width: 0;
  padding: 10px 12px;
  color: var(--muted);
}

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

.nav .nav-cta {
  border: 1px solid rgba(241, 242, 244, 0.28);
  background: rgba(95, 101, 82, 0.36);
  color: var(--ink);
}

.hero,
.landing-hero {
  min-height: calc(88vh - 81px);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: clamp(32px, 6vw, 86px);
  padding: clamp(52px, 8vw, 112px) clamp(20px, 5vw, 72px) clamp(34px, 5vw, 72px);
}

.landing-hero {
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 0.72fr);
}

.split-hero {
  border-bottom: 1px solid rgba(241, 242, 244, 0.12);
}

.hero-copy,
.landing-copy {
  max-width: 780px;
  min-width: 0;
}

.eyebrow,
.partner-line {
  margin: 0 0 18px;
  color: var(--signature-green-2);
  font-size: 0.76rem;
  font-weight: 300;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.partner-line {
  color: var(--ink);
}

.partner-line span {
  color: var(--signature-green-2);
  padding: 0 10px;
}

.partner-logo-lockup {
  display: flex;
  align-items: center;
  margin: -4px 0 18px;
}

.partner-logo {
  display: block;
  width: auto;
  max-width: min(280px, 70vw);
  object-fit: contain;
}

.occ-logo {
  height: 46px;
}

.deuvet-logo {
  height: 72px;
  filter: drop-shadow(0 12px 32px rgba(0, 0, 0, 0.38));
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
.offer-card h3 {
  font-family: "GT Sectra Display", Georgia, "Times New Roman", serif;
  font-weight: 300;
  line-height: 0.94;
}

h1 {
  max-width: 860px;
  margin-bottom: 28px;
  font-size: clamp(3rem, 7.4vw, 7.2rem);
  letter-spacing: 0;
}

h1 span {
  display: block;
}

.landing-copy h1 {
  font-size: clamp(2.75rem, 6.2vw, 6.2rem);
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2.1rem, 4vw, 4.5rem);
  letter-spacing: 0;
}

h3 {
  line-height: 1.07;
}

h1,
h2,
h3,
p,
li,
a,
span {
  overflow-wrap: anywhere;
}

.lead {
  max-width: 690px;
  color: var(--muted);
  font-size: clamp(1.1rem, 1.7vw, 1.48rem);
  line-height: 1.48;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 18px;
  border: 1px solid var(--line);
  font-size: 0.86rem;
  font-weight: 300;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 0.75rem;
}

.button.primary {
  border-color: var(--signature-green-2);
  background: var(--signature-green);
  color: var(--ink);
}

.button.secondary {
  background: rgba(241, 242, 244, 0.035);
  color: var(--ink);
}

.hero-panel {
  min-width: 0;
  display: grid;
  gap: 16px;
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid rgba(241, 242, 244, 0.15);
  border-radius: 0.75rem;
  background: linear-gradient(145deg, rgba(95, 101, 82, 0.28), rgba(241, 242, 244, 0.035));
  box-shadow: var(--shadow);
}

.metric {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.metric:first-child {
  border-top: 0;
  padding-top: 0;
}

.metric span,
.benefit-grid span {
  display: block;
  margin-bottom: 10px;
  color: var(--signature-green-2);
  font-size: 0.76rem;
  font-weight: 300;
  letter-spacing: 0.18em;
}

.metric span::before,
.benefit-grid span::before,
.partner-line::before {
  content: "";
  display: inline-block;
  width: 0.72em;
  height: 0.72em;
  margin-right: 0.6em;
  border-radius: 999px;
  background:
    radial-gradient(ellipse at center, currentColor 0 42%, transparent 43%),
    radial-gradient(ellipse at center, currentColor 0 42%, transparent 43%);
  background-size: 50% 100%, 50% 100%;
  background-position: left center, right center;
  background-repeat: no-repeat;
}

.metric strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1.08rem;
}

.metric p,
.offer-card p,
.benefit-grid p,
.intro-band p,
.cta-band p {
  color: var(--muted);
  line-height: 1.55;
}

.mini-docs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding-top: 10px;
}

.mini-docs a {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: rgba(0, 0, 0, 0.6);
}

.mini-docs img {
  width: 100%;
  aspect-ratio: 595 / 842;
  object-fit: cover;
}

.mini-docs span {
  position: absolute;
  left: 8px;
  bottom: 8px;
  padding: 5px 7px;
  background: rgba(7, 16, 15, 0.78);
  color: var(--ink);
  font-size: 0.68rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  border-radius: 0.25rem;
}

.intro-band,
.cta-band {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(260px, 0.7fr);
  gap: clamp(24px, 6vw, 72px);
  align-items: end;
  padding: clamp(48px, 7vw, 90px) clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.26);
}

.intro-band p:last-child {
  max-width: 680px;
  margin-bottom: 0;
  font-size: 1.08rem;
}

.offer-grid,
.benefits {
  padding: clamp(48px, 7vw, 96px) clamp(20px, 5vw, 72px);
}

.offer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.offer-card,
.benefit-grid article {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: var(--panel);
  padding: clamp(22px, 3vw, 34px);
}

.offer-card h3 {
  margin-bottom: 22px;
  font-size: clamp(2rem, 3.3vw, 4rem);
}

.text-link {
  display: inline-flex;
  margin-top: 18px;
  color: var(--signature-green-2);
  font-size: 0.84rem;
  font-weight: 300;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.document-preview {
  min-width: 0;
  margin: 0;
  justify-self: center;
  width: min(100%, 470px);
  border: 1px solid rgba(246, 240, 230, 0.28);
  border-radius: 0.75rem;
  background: #000;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.document-preview img {
  width: 100%;
  aspect-ratio: 595 / 842;
  object-fit: cover;
}

.section-head {
  max-width: 920px;
  margin-bottom: clamp(28px, 5vw, 56px);
}

.story-section,
.heritage-section,
.service-section,
.product-section,
.tier-section,
.offer-detail-section {
  padding: clamp(56px, 8vw, 108px) clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(241, 242, 244, 0.12);
}

.heritage-section {
  display: grid;
  grid-template-columns: minmax(120px, 0.32fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: center;
  background:
    linear-gradient(135deg, rgba(241, 242, 244, 0.07), rgba(95, 101, 82, 0.18));
}

.heritage-mark {
  width: clamp(94px, 13vw, 164px);
  aspect-ratio: 1;
  border-radius: 50%;
  overflow: hidden;
  background: #000;
}

.heritage-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.heritage-section h2 {
  margin-bottom: 18px;
}

.heritage-section p:last-child {
  max-width: 900px;
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.68;
}

.section-kicker {
  display: grid;
  grid-template-columns: minmax(240px, 0.55fr) minmax(320px, 1fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: end;
  margin-bottom: clamp(34px, 5vw, 64px);
}

.story-grid,
.service-list,
.product-grid,
.offer-steps {
  display: grid;
  width: 100%;
  max-width: 100%;
  gap: 16px;
}

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

.story-grid article,
.service-list article,
.product-card,
.offer-steps article {
  min-width: 0;
  border: 1px solid rgba(241, 242, 244, 0.16);
  border-radius: 0.75rem;
  background:
    linear-gradient(145deg, rgba(95, 101, 82, 0.18), rgba(241, 242, 244, 0.035));
  padding: clamp(22px, 3vw, 34px);
}

.story-grid span,
.offer-steps span {
  display: block;
  margin-bottom: 14px;
  color: var(--signature-green-2);
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.story-grid h3,
.service-list h3,
.product-card h3 {
  margin-bottom: 14px;
  color: var(--ink);
  font-size: clamp(1.12rem, 1.35vw, 1.55rem);
  line-height: 1.12;
  hyphens: auto;
}

.story-grid p,
.service-list p,
.product-card p,
.offer-steps p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.58;
}

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

.service-list article {
  min-height: 260px;
  overflow: hidden;
}

.product-grid {
  grid-template-columns: 1.1fr 0.95fr 0.95fr;
}

.cockpit-live-preview {
  width: 100%;
  margin: 0 0 14px;
  overflow: hidden;
  border: 1px solid rgba(241, 242, 244, 0.2);
  border-radius: 0.75rem;
  background: #020706;
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.38);
}

.preview-window-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 18px;
  border-bottom: 1px solid rgba(241, 242, 244, 0.12);
  background: rgba(241, 242, 244, 0.045);
}

.preview-window-bar span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(241, 242, 244, 0.34);
}

.preview-window-bar strong {
  margin-left: 8px;
  color: rgba(241, 242, 244, 0.52);
  font-size: 0.72rem;
  font-weight: 300;
  letter-spacing: 0.04em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cockpit-live-preview iframe {
  display: block;
  width: 100%;
  height: clamp(440px, 52vw, 720px);
  border: 0;
  background: #020706;
}

.preview-button {
  margin: 0 0 clamp(18px, 3vw, 30px);
}

.product-card.featured {
  background:
    radial-gradient(circle at 100% 0%, rgba(115, 136, 114, 0.26), transparent 16rem),
    linear-gradient(145deg, rgba(95, 101, 82, 0.34), rgba(241, 242, 244, 0.04));
}

.product-card .eyebrow {
  margin-bottom: 16px;
}

.tier-section {
  background:
    radial-gradient(circle at 88% 12%, rgba(115, 136, 114, 0.18), transparent 24rem),
    linear-gradient(135deg, rgba(0, 0, 0, 0.18), rgba(241, 242, 244, 0.035));
}

.tier-grid {
  display: grid;
  width: 100%;
  max-width: 100%;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.tier-card {
  min-width: 0;
  container-type: inline-size;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 20px;
  border: 1px solid rgba(241, 242, 244, 0.16);
  border-radius: 0.75rem;
  background: rgba(0, 0, 0, 0.22);
  padding: clamp(22px, 3vw, 34px);
}

.tier-card.featured {
  border-color: rgba(191, 154, 85, 0.86);
  background:
    radial-gradient(circle at 100% 0%, rgba(191, 154, 85, 0.2), transparent 15rem),
    linear-gradient(145deg, rgba(95, 101, 82, 0.3), rgba(241, 242, 244, 0.045));
}

.tier-card-soon {
  position: relative;
  border-style: dashed;
  opacity: 0.56;
  filter: grayscale(0.55);
  background:
    linear-gradient(145deg, rgba(241, 242, 244, 0.07), rgba(0, 0, 0, 0.18));
}

.tier-card-soon::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.08), rgba(0, 0, 0, 0.34));
}

.tier-card-soon > * {
  position: relative;
  z-index: 1;
}

.tier-card span {
  color: var(--signature-green-2);
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.tier-card .soon-label {
  align-self: flex-start;
  margin-bottom: -4px;
  padding: 7px 10px;
  border: 1px solid rgba(241, 242, 244, 0.3);
  border-radius: 999px;
  color: var(--ink);
  background: rgba(95, 101, 82, 0.46);
}

.tier-card h3 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.45rem, 8.1cqw, 2.35rem);
  line-height: 1;
  overflow-wrap: normal;
  word-break: keep-all;
  white-space: nowrap;
}

.tier-card h3 .inline-tm {
  display: inline-block;
  overflow-wrap: normal;
  white-space: nowrap;
}

.tier-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.58;
}

.tier-price strong {
  color: var(--ink);
  font-size: clamp(1.1rem, 1.8vw, 1.45rem);
  line-height: 1.2;
}

.tier-price {
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(241, 242, 244, 0.18);
  font-size: clamp(0.95rem, 1.3vw, 1.08rem);
}

.tier-note {
  margin-top: -8px;
  color: var(--signature-green-2);
  font-size: 0.84rem;
  line-height: 1.45;
}

.tier-group {
  display: grid;
  gap: 12px;
  padding-top: 2px;
}

.tier-group + .tier-group {
  padding-top: 18px;
  border-top: 1px solid rgba(241, 242, 244, 0.14);
}

.tier-group h4 {
  margin: 0;
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 300;
  letter-spacing: 0.16em;
  line-height: 1.3;
  text-transform: uppercase;
}

.tier-card ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  color: var(--ink);
  list-style: none;
}

.tier-card li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.45;
}

.tier-card li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signature-green-2);
}

.offer-detail-section {
  display: grid;
  grid-template-columns: minmax(300px, 0.75fr) minmax(320px, 1fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: start;
}

.offer-steps {
  grid-template-columns: 1fr;
}

.offer-steps article {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  align-items: start;
}

.page-occ .button.primary {
  background: #626a57;
}

.page-deuvet .button.primary {
  background: #56614f;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.benefit-grid h3 {
  margin-bottom: 12px;
  font-size: 1.28rem;
}

.cta-band {
  align-items: center;
}

.cta-band .button {
  justify-self: end;
}

.research-footer {
  margin: clamp(18px, 3vw, 30px) clamp(12px, 2vw, 24px) 10px;
  border: 1px solid rgba(241, 242, 244, 0.14);
  border-radius: 8px;
  background: #030403;
  color: var(--ink);
  overflow: hidden;
}

.research-footer-inner {
  display: grid;
  grid-template-columns: minmax(190px, 0.7fr) minmax(330px, 0.92fr) minmax(190px, 0.62fr);
  gap: clamp(18px, 2.4vw, 34px);
  align-items: center;
  padding: clamp(18px, 2.5vw, 26px) clamp(18px, 3vw, 30px);
}

.research-copy h2 {
  margin: 0;
  color: rgba(241, 242, 244, 0.72);
  font-size: clamp(1.05rem, 1.55vw, 1.7rem);
  line-height: 1.08;
}

.research-copy p,
.research-claim,
.research-bottom {
  margin: 0;
  font-family: "GT Flexa Mono", "Helvetica Neue", Arial, sans-serif;
  font-weight: 300;
  letter-spacing: 0.03em;
}

.research-copy p {
  margin-top: 7px;
  color: rgba(241, 242, 244, 0.44);
  font-size: clamp(0.55rem, 0.72vw, 0.72rem);
  text-transform: uppercase;
}

.research-partners {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(18px, 2.4vw, 34px);
  flex-wrap: nowrap;
}

.research-partners img {
  width: auto;
  display: block;
  object-fit: contain;
  background: transparent;
}

.research-partners .fresenius-logo {
  max-width: min(190px, 30vw);
  max-height: 38px;
  opacity: 0.55;
  filter: grayscale(1);
}

.research-partners .gateway-logo {
  width: min(252px, 34vw);
  max-width: 100%;
  height: auto;
  max-height: 68px;
  padding: 7px 11px;
  box-sizing: border-box;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.92);
  opacity: 1;
  filter: none;
}

.research-claim {
  justify-self: end;
  color: rgba(241, 242, 244, 0.38);
  font-size: clamp(0.55rem, 0.78vw, 0.72rem);
  line-height: 1.55;
  text-align: right;
}

.research-bottom {
  border-top: 1px solid rgba(241, 242, 244, 0.08);
  padding: 9px 18px 10px;
  color: rgba(241, 242, 244, 0.42);
  font-size: 0.62rem;
  font-weight: 800;
  text-align: center;
  text-transform: uppercase;
}

.back-to-top {
  position: fixed;
  right: clamp(16px, 3vw, 32px);
  bottom: clamp(16px, 3vw, 32px);
  z-index: 60;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(241, 242, 244, 0.28);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.72);
  color: var(--ink);
  font-size: 1.35rem;
  line-height: 1;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.38);
  backdrop-filter: blur(14px);
}

.back-to-top:hover {
  background: rgba(95, 101, 82, 0.76);
}

@media (max-width: 1320px) {
  .tier-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 1180px) {
  .product-grid,
  .research-footer-inner {
    grid-template-columns: 1fr;
  }

  .tier-card h3 {
    font-size: clamp(1.5rem, 7.8cqw, 2.6rem);
  }
}

@media (min-width: 1500px) {
  .service-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .site-header {
    position: sticky;
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
    max-height: 100svh;
    overflow-y: auto;
  }

  .nav {
    justify-content: flex-start;
    width: 100%;
    max-width: 100%;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .hero,
  .landing-hero,
  .intro-band,
  .cta-band,
  .offer-grid,
  .benefit-grid,
  .section-kicker,
  .heritage-section,
  .story-grid,
  .service-list,
  .product-grid,
  .tier-grid,
  .offer-detail-section {
    grid-template-columns: 1fr;
  }

  .service-list article {
    min-height: auto;
  }

  .hero,
  .landing-hero {
    min-height: auto;
  }

  .cta-band .button {
    justify-self: start;
  }

  .research-partners {
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 18px;
  }

  .research-claim {
    justify-self: start;
    text-align: left;
  }
}

@media (max-width: 560px) {
  .site-header {
    padding: 14px 16px 12px;
  }

  .brand {
    gap: 8px;
    flex-wrap: wrap;
    max-width: 100%;
  }

  .brand-k {
    width: 34px;
    height: 34px;
  }

  .brand-kar {
    font-size: 1.72rem;
  }

  .brand-powered {
    font-size: 0.48rem;
    letter-spacing: 0.08em;
  }

  .brand-kukuk {
    width: 46px;
  }

  .nav {
    width: 100%;
    max-width: 100%;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
  }

  .nav a {
    width: 100%;
    padding: 8px 7px;
    border: 1px solid rgba(241, 242, 244, 0.12);
    background: rgba(241, 242, 244, 0.035);
    font-size: clamp(0.56rem, 2.6vw, 0.66rem);
    letter-spacing: 0.02em;
    white-space: nowrap;
  }

  .nav .nav-cta {
    grid-column: 1 / -1;
  }

  .eyebrow,
  .partner-line {
    font-size: 0.68rem;
    letter-spacing: 0.12em;
  }

  .partner-logo-lockup {
    margin-bottom: 14px;
  }

  .occ-logo {
    height: 38px;
  }

  .deuvet-logo {
    height: 58px;
  }

  .hero,
  .landing-hero,
  .intro-band,
  .cta-band,
  .offer-grid,
  .benefits {
    width: 100%;
    max-width: 100%;
    padding-left: 16px;
    padding-right: 16px;
  }

  .landing-hero {
    gap: 28px;
    padding-top: 34px;
  }

  h1 {
    font-size: clamp(2rem, 11.2vw, 2.85rem);
    line-height: 1;
  }

  .landing-copy h1 {
    font-size: clamp(2rem, 10.6vw, 2.72rem);
  }

  h1,
  h2,
  .lead,
  .landing-copy,
  .hero-copy,
  .metric p,
  .benefit-grid p {
    max-width: 100%;
  }

  .landing-copy,
  .hero-copy,
  .document-preview {
    width: calc(100vw - 32px) !important;
    max-width: calc(100vw - 32px) !important;
  }

  h2 {
    font-size: clamp(1.82rem, 8vw, 2.15rem);
    line-height: 1;
    overflow-wrap: break-word;
  }

  .lead {
    width: auto;
    max-width: 100%;
    font-size: 0.95rem;
  }

  .hero-panel,
  .document-preview {
    justify-self: start;
  }

  .document-preview img {
    object-fit: contain;
  }

  .button {
    width: 100%;
  }

  .story-section,
  .heritage-section,
  .service-section,
  .product-section,
  .tier-section,
  .offer-detail-section {
    padding-left: 16px;
    padding-right: 16px;
  }

  .story-grid article,
  .service-list article,
  .product-card,
  .tier-card,
  .offer-steps article {
    padding: 20px;
  }

  .tier-card h3 {
    font-size: clamp(1.35rem, 8.6cqw, 2.25rem);
  }

  .tier-price strong {
    font-size: 1.05rem;
  }

  .tier-card li {
    font-size: 0.9rem;
    line-height: 1.5;
  }

  .back-to-top {
    width: 42px;
    height: 42px;
    right: 14px;
    bottom: 14px;
  }

  .offer-steps article {
    grid-template-columns: 1fr;
  }
}