:root {
  --green: #21bb6f;
  --green-dark: #0b7f4b;
  --green-bright: #1fe18b;
  --green-light: #22f8a1;
  --ink: #17201e;
  --graphite: #33413d;
  --muted: #687773;
  --line: #dfe9e4;
  --mist: #f5faf7;
  --white: #ffffff;
  --slate: #31586a;
  --signal: #e7b44d;
  --shadow: 0 18px 42px rgba(23, 32, 30, 0.12);
  --header-height: 76px;
  --content-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Roboto, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

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

a {
  color: inherit;
}

button,
input,
textarea {
  font: inherit;
}

::selection {
  color: var(--ink);
  background: rgba(31, 225, 139, 0.45);
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  transform: translateY(-160%);
  border-radius: 6px;
  background: var(--ink);
  color: var(--white);
  padding: 10px 14px;
  text-decoration: none;
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  padding: 12px max(24px, calc((100vw - var(--content-width)) / 2));
  border-bottom: 1px solid rgba(223, 233, 228, 0.72);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(18px);
  transition: box-shadow 180ms ease, border-color 180ms ease;
}

.site-header.is-scrolled {
  border-color: transparent;
  box-shadow: 0 10px 30px rgba(23, 32, 30, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  width: 216px;
  min-width: 164px;
  text-decoration: none;
}

.brand img {
  width: 100%;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  border-radius: 6px;
  color: var(--graphite);
  font-size: 0.94rem;
  font-weight: 650;
  line-height: 1;
  padding: 12px 14px;
  text-decoration: none;
  transition: color 160ms ease, background 160ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.is-active {
  color: #0b6d42;
  background: rgba(33, 187, 111, 0.1);
  outline: none;
}

.nav-toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
  color: var(--ink);
  cursor: pointer;
}

.nav-toggle__bar {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 19px;
  height: 2px;
  margin-top: -1px;
  margin-left: -9.5px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 160ms ease, opacity 160ms ease;
}

.nav-toggle__bar:nth-child(1) {
  transform: translateY(-8px);
}

.nav-toggle__bar:nth-child(2) {
  transform: translateY(0);
}

.nav-toggle__bar:nth-child(3) {
  transform: translateY(8px);
}

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

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

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

.nav-toggle:focus-visible {
  border-color: var(--green);
  outline: none;
  box-shadow: 0 0 0 4px rgba(33, 187, 111, 0.16);
}

.hero {
  position: relative;
  isolation: isolate;
  min-height: clamp(560px, 82svh, 780px);
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: 88px 24px 92px;
  border-bottom: 1px solid var(--line);
}

.hero__background {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.92) 43%, rgba(245, 250, 247, 0.68) 100%),
    url("assets/perpetuum-wrapper.png") center / cover no-repeat;
}

.hero::after {
  content: "";
  position: absolute;
  right: -130px;
  bottom: -130px;
  z-index: -1;
  width: 520px;
  height: 340px;
  border: 34px solid rgba(33, 187, 111, 0.18);
  border-left-color: rgba(34, 248, 161, 0.28);
  border-radius: 50% 44% 56% 47%;
  transform: rotate(-15deg);
}

.hero__inner {
  width: min(100%, var(--content-width));
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 14px;
  color: #0b7f4b;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.eyebrow--light {
  color: var(--green-light);
}

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

section[id],
h2[id] {
  scroll-margin-top: calc(var(--header-height) + 24px);
}

h1,
h2,
h3 {
  color: var(--ink);
  font-family: "Arial Rounded MT Bold", Roboto, "Segoe UI", Arial, sans-serif;
  letter-spacing: 0;
  line-height: 1.08;
}

h1 {
  margin-bottom: 12px;
  max-width: 980px;
  font-size: 4.75rem;
  font-weight: 800;
}

h2 {
  margin-bottom: 0;
  font-size: 2.45rem;
  font-weight: 800;
  max-width: 780px;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.18rem;
  font-weight: 800;
}

.hero__copy {
  max-width: 650px;
  margin-bottom: 30px;
  color: var(--graphite);
  font-size: 1.18rem;
}

.hero__tagline {
  max-width: 680px;
  margin-bottom: 16px;
  color: #0b7f4b;
  font-size: 1.35rem;
  font-weight: 850;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 34px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 12px 18px;
  font-weight: 800;
  line-height: 1.1;
  text-align: center;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
  outline: none;
}

.button--primary {
  background: linear-gradient(135deg, var(--green) 0%, var(--green-light) 100%);
  color: #06271a;
  box-shadow: 0 14px 26px rgba(33, 187, 111, 0.24);
}

.button--secondary {
  border-color: rgba(49, 88, 106, 0.28);
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink);
}

.section {
  padding: 92px 24px;
}

.section--tight {
  padding-block: 64px;
}

.section__inner {
  width: min(100%, var(--content-width));
  margin-inline: auto;
}

.section-heading {
  display: grid;
  gap: 12px;
  margin-bottom: 34px;
}

.intro {
  background:
    linear-gradient(180deg, #f7fbf8 0%, #edf7f2 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.intro__grid,
.model__grid,
.ai-band__grid,
.contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 52px;
  align-items: start;
}

.intro__copy {
  color: var(--graphite);
  font-size: 1.06rem;
}

.intro__copy p:last-child,
.model__intro p:last-child,
.contact p:last-child {
  margin-bottom: 0;
}

.capability-grid,
.team-grid {
  display: grid;
  gap: 18px;
}

.capability-card,
.client-tile,
.team-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 24px;
}

.capability-card p,
.team-grid p {
  margin-bottom: 0;
  color: var(--muted);
}

.capabilities {
  border-top: 1px solid rgba(33, 187, 111, 0.14);
  border-bottom: 1px solid rgba(33, 187, 111, 0.12);
  background:
    linear-gradient(180deg, #fbfdfc 0%, #f5faf7 72%, var(--white) 100%);
}

.capability-flow {
  position: relative;
  padding-top: 0;
}

.capability-industry {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 230px;
  overflow: visible;
  border-radius: 8px;
  margin-bottom: 18px;
  background: var(--green-dark);
  padding: 38px 42px;
}

.capability-industry::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: inherit;
  background:
    linear-gradient(90deg, rgba(9, 68, 44, 0.64) 0%, rgba(9, 68, 44, 0.32) 54%, rgba(9, 68, 44, 0.08) 100%);
}

.capability-industry img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  object-fit: cover;
  object-position: center 52%;
}

.capability-industry h2 {
  position: relative;
  z-index: 2;
  max-width: 820px;
  color: var(--white);
  font-size: clamp(0.95rem, 2.4vw, 2rem);
  margin-bottom: 0;
}

.capability-industry h2 span {
  display: block;
  white-space: nowrap;
}

.capability-grid {
  position: relative;
  grid-template-columns: minmax(0, 1fr);
}

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

.capability-card {
  position: relative;
  min-height: 248px;
  display: grid;
  grid-template-rows: auto;
  align-content: start;
  justify-items: center;
  gap: 12px;
  border-color: var(--line);
  background: var(--white);
  text-align: center;
  box-shadow: 0 14px 30px rgba(23, 32, 30, 0.06);
}

.capability-card h3 {
  max-width: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0;
}

.capability-card p {
  max-width: 560px;
}

.capability-card__lead {
  max-width: 560px !important;
  color: var(--graphite) !important;
  font-size: 1.05rem;
  line-height: 1.75;
  margin-bottom: 0;
}

.model {
  background: #f0f6f3;
}

.model__intro p {
  color: var(--graphite);
  font-size: 1.04rem;
}

.eyebrow.section-label {
  margin: 0 0 14px;
  color: #0b7f4b;
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0;
  text-transform: uppercase;
}

.eyebrow--light.section-label {
  color: var(--green-light);
}

.eyebrow.sublevel-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.78rem;
}

.sublevel-label__marker {
  display: inline-grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid rgba(33, 187, 111, 0.28);
  border-radius: 999px;
  background: rgba(33, 187, 111, 0.08);
  color: var(--green-dark);
  font-size: 0.72rem;
  line-height: 1;
}

.model-orbit {
  position: relative;
  min-height: 370px;
  display: grid;
  align-items: center;
  padding: 112px 138px 88px;
}

.model-orbit::before {
  content: "";
  position: absolute;
  inset: 34px 50px;
  border: 1px dashed rgba(33, 187, 111, 0.38);
  border-radius: 50%;
  pointer-events: none;
}

.model-principles {
  margin: 0;
  padding: 0;
  list-style: none;
}

.model-principles li {
  position: absolute;
  z-index: 2;
  display: grid;
  width: 124px;
  height: 124px;
  place-items: center;
  align-content: center;
  gap: 0;
  border: 1px solid rgba(33, 187, 111, 0.26);
  border-radius: 50%;
  background: var(--white);
  padding: 18px;
  text-align: center;
  box-shadow: 0 12px 28px rgba(23, 32, 30, 0.08);
}

.model-principles li:nth-child(1) {
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}

.model-principles li:nth-child(2) {
  top: 50%;
  left: 0;
  transform: translateY(-50%);
}

.model-principles li:nth-child(3) {
  right: 0;
  bottom: 18px;
}

.model-principles strong {
  color: var(--ink);
  font-size: 1.28rem;
  line-height: 1.2;
}

.model-principles span {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 750;
  line-height: 1.25;
}

.model__panels {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 18px;
}

.model__panels article {
  border-left: 4px solid var(--green);
  border-radius: 0 8px 8px 0;
  background: var(--white);
  padding: 26px 28px;
  box-shadow: 0 12px 30px rgba(23, 32, 30, 0.06);
}

.model__panels article:nth-child(2) {
  border-left-color: var(--signal);
}

.model__panels p {
  margin-bottom: 0;
  color: var(--muted);
}

.pattern-panel {
  position: relative;
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  padding: 28px;
  box-shadow: 0 14px 30px rgba(23, 32, 30, 0.06);
}

.pattern-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pattern-list li {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(33, 187, 111, 0.2);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.84);
  color: var(--graphite);
  font-weight: 750;
  padding: 10px 14px;
  text-align: center;
}

.approach {
  background:
    linear-gradient(180deg, #fbfdfc 0%, var(--white) 72%);
}

.timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 39px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(90deg, var(--green), var(--green-light), var(--signal));
}

.timeline li {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 70px 22px 24px;
  box-shadow: 0 12px 28px rgba(23, 32, 30, 0.06);
}

.timeline li::before {
  counter-increment: steps;
  content: counter(steps);
  position: absolute;
  top: 18px;
  left: 22px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 2px solid var(--white);
  border-radius: 50%;
  background: var(--green);
  color: var(--white);
  font-weight: 850;
  box-shadow: 0 0 0 5px rgba(33, 187, 111, 0.18);
}

.timeline span {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--slate);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.timeline p {
  margin-bottom: 0;
  color: var(--muted);
}

.ai-band {
  background:
    linear-gradient(135deg, rgba(23, 32, 30, 0.98), rgba(35, 67, 59, 0.96)),
    url("assets/perpetuum-wrapper.png") center / cover no-repeat;
  color: rgba(255, 255, 255, 0.86);
}

.ai-band h2 {
  color: var(--white);
}

.ai-band p {
  color: rgba(255, 255, 255, 0.84);
  font-size: 1.06rem;
}

.ai-band ul {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.ai-band li {
  position: relative;
  padding-left: 28px;
  color: rgba(255, 255, 255, 0.9);
}

.ai-band li::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green-light);
}

.proof {
  background:
    linear-gradient(180deg, var(--white) 0%, #f7fbf8 100%);
}

.experience-panel {
  border: 1px solid rgba(33, 187, 111, 0.18);
  border-radius: 8px;
  background: var(--white);
  padding: 30px;
  box-shadow: 0 16px 34px rgba(23, 32, 30, 0.08);
}

.experience-panel__lead {
  max-width: 760px;
  margin-bottom: 24px;
  color: var(--graphite);
  font-size: 1.12rem;
  font-weight: 650;
}

.experience-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.experience-grid article {
  min-height: 220px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdfc;
  padding: 24px;
}

.experience-grid p {
  margin-bottom: 0;
  color: var(--muted);
}

.experience-panel__action {
  display: flex;
  justify-content: center;
  margin-top: 22px;
}

.testimonial-slider {
  position: relative;
  overflow: hidden;
  margin-top: 24px;
  padding-block: 4px;
  mask-image: linear-gradient(90deg, transparent 0%, #000 8%, #000 92%, transparent 100%);
}

.testimonial-track {
  width: max-content;
  display: flex;
  gap: 18px;
  animation: testimonial-scroll 34s linear infinite;
}

.testimonial-slider:hover .testimonial-track,
.testimonial-slider:focus-within .testimonial-track {
  animation-play-state: paused;
}

blockquote {
  width: clamp(320px, 38vw, 520px);
  min-height: 188px;
  margin: 0;
  border: 1px solid rgba(33, 187, 111, 0.22);
  border-radius: 8px;
  background: var(--mist);
  padding: 28px;
}

blockquote p {
  color: var(--graphite);
  font-size: 1.08rem;
}

cite {
  color: var(--muted);
  font-style: normal;
  font-weight: 800;
}

@keyframes testimonial-scroll {
  from {
    transform: translate3d(0, 0, 0);
  }

  to {
    transform: translate3d(calc(-50% - 9px), 0, 0);
  }
}

@keyframes client-logo-scroll {
  from {
    transform: translate3d(calc(-50% - 9px), 0, 0);
  }

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

.team {
  background:
    linear-gradient(180deg, #fbfdfc 0%, var(--mist) 100%);
}

.team-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 22px;
}

.team-photo {
  width: 96px;
  height: 96px;
  object-fit: contain;
  margin-bottom: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(33, 187, 111, 0.1), rgba(34, 248, 161, 0.16));
  box-shadow: 0 10px 24px rgba(23, 32, 30, 0.1);
}

.delivery-card {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(260px, 0.75fr);
  gap: 30px;
  align-items: start;
  margin-top: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 28px;
  box-shadow: 0 14px 30px rgba(23, 32, 30, 0.06);
}

.delivery-card p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.delivery-card ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.delivery-card li {
  position: relative;
  border: 1px solid #e6eeea;
  border-radius: 7px;
  background: #f7faf8;
  color: var(--graphite);
  font-weight: 650;
  padding: 13px 14px 13px 18px;
}

.delivery-card li::before {
  content: none;
}

.case-hero {
  padding: calc(var(--header-height) + 20px) 28px 48px;
  background:
    linear-gradient(180deg, #f7fbf8 0%, #edf7f2 100%);
  border-bottom: 1px solid var(--line);
}

.case-hero h1 {
  max-width: 840px;
  margin-bottom: 18px;
  font-size: clamp(2.45rem, 5vw, 4.5rem);
}

.case-hero p:last-child {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--graphite);
  font-size: 1.08rem;
}

.case-page {
  background: var(--white);
}

.case-page .section__inner {
  width: min(100%, 1420px);
}

.case-stack {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  align-items: start;
}

.case-group {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdfc;
  padding: 0;
  box-shadow: 0 14px 30px rgba(23, 32, 30, 0.06);
}

.case-group__header {
  position: relative;
  min-height: 128px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-bottom: 1px solid rgba(33, 187, 111, 0.16);
  background: var(--case-image) center / cover no-repeat;
  padding: 22px 28px;
}

.case-group__header::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(9, 68, 44, 0.64) 0%, rgba(9, 68, 44, 0.32) 54%, rgba(9, 68, 44, 0.08) 100%);
  pointer-events: none;
}

.case-group--warehousing {
  --case-image: url("assets/case-warehousing.jpg");
}

.case-group--freight {
  --case-image: url("assets/case-freight-forwarding.jpg");
}

.case-group__label {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  margin-bottom: 0;
  color: var(--white);
  font-size: clamp(1.25rem, 1.8vw, 1.6rem);
  text-align: center;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.28);
}

.case-tile-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
  padding: 24px 28px 28px;
}

.case-tile {
  min-height: 0;
  border: 1px solid rgba(33, 187, 111, 0.18);
  border-radius: 8px;
  background: var(--white);
  padding: 0;
  box-shadow: 0 10px 24px rgba(23, 32, 30, 0.05);
}

.case-tile[open] {
  border-color: rgba(33, 187, 111, 0.34);
  box-shadow: 0 14px 28px rgba(23, 32, 30, 0.08);
}

.case-tile summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  cursor: pointer;
  list-style: none;
  padding: 18px 20px;
}

.case-tile summary::-webkit-details-marker {
  display: none;
}

.case-tile summary::after {
  content: "+";
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(33, 187, 111, 0.22);
  border-radius: 50%;
  color: var(--green-dark);
  background: rgba(33, 187, 111, 0.06);
  font-size: 1rem;
  font-weight: 800;
  line-height: 1;
}

.case-tile[open] summary::after {
  content: "-";
}

.case-tile h3 {
  margin-bottom: 0;
  color: var(--graphite);
  font-size: 1.03rem;
  line-height: 1.35;
}

.case-tile p {
  margin: -2px 20px 20px;
  border-top: 1px solid rgba(33, 187, 111, 0.14);
  color: var(--muted);
  line-height: 1.7;
  padding-top: 14px;
}

.contact {
  background: var(--white);
}

.contact__grid {
  align-items: center;
}

.contact p {
  color: var(--graphite);
  font-size: 1.05rem;
}

.contact-details {
  display: grid;
  gap: 12px;
  margin-top: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdfc;
  padding: 22px;
}

.contact-details p {
  margin: 0;
}

.contact-details strong {
  color: var(--ink);
}

.contact-details a {
  color: #0b7f4b;
  font-weight: 800;
  text-decoration: none;
}

.contact-details__links {
  display: grid;
  gap: 10px;
  justify-items: start;
}

.contact-social-link {
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 7px;
  background: transparent;
}

.contact-social-icon {
  width: 32px;
  height: 32px;
  display: block;
}

.contact-details a:hover,
.contact-details a:focus-visible {
  text-decoration: underline;
}

.contact-social-link:hover,
.contact-social-link:focus-visible {
  background: rgba(20, 130, 196, 0.08);
  text-decoration: none;
}

.contact-form {
  display: grid;
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdfc;
  padding: 26px;
  box-shadow: var(--shadow);
}

.contact-form label {
  display: grid;
  gap: 7px;
  color: var(--graphite);
  font-size: 0.92rem;
  font-weight: 800;
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid #cddbd5;
  border-radius: 6px;
  background: var(--white);
  color: var(--ink);
  padding: 12px 13px;
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.contact-form textarea {
  min-height: 130px;
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 4px rgba(33, 187, 111, 0.13);
}

.contact-form .button {
  width: fit-content;
  cursor: pointer;
}

.form-status {
  min-height: 24px;
  margin: 0;
  color: #0b7f4b;
  font-weight: 750;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--ink);
  color: rgba(255, 255, 255, 0.78);
  padding: 28px 24px;
}

.site-footer__inner {
  width: min(100%, var(--content-width));
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto;
  align-items: center;
  gap: 28px;
  margin: 0 auto;
}

.site-footer__brand {
  display: grid;
  gap: 12px;
}

.site-footer__brand img {
  width: 70px;
  height: auto;
}

.site-footer p {
  margin: 0;
}

.site-footer__copyright {
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.92rem;
}

.site-footer__links {
  display: grid;
  justify-items: end;
  align-self: center;
  text-align: right;
}

.site-footer a {
  color: var(--green-light);
  font-weight: 800;
  text-decoration: none;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  text-decoration: underline;
}

@media (max-width: 1040px) {
  h1 {
    font-size: 4.35rem;
  }

  h2 {
    font-size: 2.05rem;
  }

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

  .case-stack {
    grid-template-columns: 1fr;
  }

  .pattern-panel {
    margin-top: 24px;
  }

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

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

  .timeline::before {
    display: none;
  }
}

@media (max-width: 820px) {
  :root {
    --header-height: 70px;
  }

  .site-header {
    padding-inline: 18px;
  }

  .brand {
    width: 178px;
  }

  .nav-toggle {
    display: grid;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    right: 14px;
    left: 14px;
    display: none;
    grid-template-columns: 1fr;
    gap: 4px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--white);
    padding: 10px;
    box-shadow: var(--shadow);
  }

  body.nav-open .site-nav {
    display: grid;
  }

  .site-nav a {
    padding: 14px;
  }

  .hero {
    min-height: 690px;
    padding: 78px 18px 64px;
  }

  .hero__background {
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.92) 58%, rgba(245, 250, 247, 0.78) 100%),
      url("assets/perpetuum-wrapper.png") center / cover no-repeat;
  }

  .hero::after {
    width: 320px;
    height: 220px;
    right: -150px;
    bottom: -100px;
    border-width: 22px;
  }

  h1 {
    font-size: 3.25rem;
  }

  h2 {
    font-size: 1.82rem;
  }

  .section {
    padding: 70px 18px;
  }

  .case-hero {
    padding: calc(var(--header-height) + 20px) 18px 42px;
  }

  .capability-flow {
    padding: 0;
  }

  .capability-industry {
    min-height: 210px;
    margin-bottom: 18px;
    padding: 30px;
  }

  .section--tight {
    padding-block: 52px;
  }

  .intro__grid,
  .model__grid,
  .ai-band__grid,
  .contact__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .pattern-panel {
    grid-template-columns: 1fr;
    gap: 22px;
  }

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

  .model-orbit {
    min-height: 0;
    gap: 18px;
    padding: 0;
  }

  .model-orbit::before {
    display: none;
  }

  .model-principles {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
  }

  .model-principles li,
  .model-principles li:nth-child(1),
  .model-principles li:nth-child(2),
  .model-principles li:nth-child(3) {
    position: static;
    width: auto;
    min-height: 92px;
    height: auto;
    transform: none;
    border-radius: 8px;
  }

  .model-principles strong {
    font-size: 1.08rem;
  }

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

  .delivery-card,
  .experience-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  body {
    font-size: 15px;
  }

  .brand {
    width: 152px;
  }

  h1 {
    font-size: 2.35rem;
  }

  h2 {
    font-size: 1.58rem;
  }

  .hero {
    min-height: 660px;
  }

  .hero__copy {
    font-size: 1rem;
  }

  .hero__tagline {
    font-size: 1.08rem;
  }

  .hero__actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .capability-grid,
  .model-principles,
  .timeline,
  .pattern-list,
  .case-tile-grid {
    grid-template-columns: 1fr;
  }

  .model-principles li,
  .model-principles li:nth-child(1),
  .model-principles li:nth-child(2),
  .model-principles li:nth-child(3) {
    min-height: 72px;
  }

  .capability-card {
    min-height: 220px;
  }

  .capability-flow {
    padding: 0;
  }

  .capability-industry {
    min-height: 190px;
    padding: 24px;
  }

  .contact-form {
    padding: 20px;
  }

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

  blockquote {
    width: 82vw;
    min-height: 220px;
    padding: 24px;
  }

  .delivery-card,
  .experience-panel {
    padding: 22px;
  }

  .pattern-panel {
    padding: 22px;
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
  }

  .site-footer__links {
    justify-items: start;
    text-align: left;
  }

  .site-footer__inner {
    align-items: flex-start;
  }
}

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

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

  .testimonial-track {
    animation: none !important;
  }

  .client-logo-track {
    animation: none !important;
  }
}