@import url("https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600&family=Manrope:wght@400;500;600&display=swap");

:root {
  --ink: #071611;
  --ink-soft: #10271f;
  --paper: #f4f1e8;
  --paper-muted: #d9d5ca;
  --copper: #c99862;
  --mint: #91cbb4;
  --line: rgba(244, 241, 232, 0.16);
  --max-width: 1240px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: "DM Sans", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.skip-link {
  position: fixed;
  top: 0;
  left: 1rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--paper);
  color: var(--ink);
  transform: translateY(-110%);
}

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

.site-header,
.hero,
.proof,
.section,
.case-study,
.contact,
footer {
  width: min(calc(100% - 3rem), var(--max-width));
  margin-inline: auto;
}

.site-header {
  position: absolute;
  top: 0;
  left: 50%;
  z-index: 20;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  border-bottom: 1px solid rgba(244, 241, 232, 0.1);
  background: rgba(7, 22, 17, 0.18);
  backdrop-filter: blur(8px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: "Manrope", sans-serif;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2rem;
  aspect-ratio: 1;
  border: 1px solid var(--copper);
  border-radius: 50%;
  color: var(--copper);
  font-size: 0.8rem;
}

nav {
  display: flex;
  gap: clamp(1rem, 3vw, 2.5rem);
}

nav a {
  color: var(--paper-muted);
  font-size: 0.85rem;
  text-decoration: none;
  transition: color 180ms ease;
}

nav a:hover,
nav a:focus-visible { color: var(--paper); }

.hero {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: min(620px, 78vh);
  padding: calc(4.5rem + 88px) max(1.5rem, calc((100% - var(--max-width)) / 2)) 4.5rem;
  background: url("assets/hero-supply-network-wide.png") center / cover no-repeat;
}

.hero-copy { max-width: 760px; }

.eyebrow,
.section-label {
  margin: 0 0 1rem;
  color: var(--copper);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

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

h1,
h2 {
  font-family: "Manrope", sans-serif;
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.04;
}

h1 {
  max-width: 850px;
  margin-bottom: 1.5rem;
  font-size: clamp(2.8rem, 5.5vw, 5.2rem);
}

h2 { font-size: clamp(1.8rem, 3.1vw, 3.2rem); }

.hero-intro {
  max-width: 650px;
  margin-bottom: 2.5rem;
  color: var(--paper-muted);
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
}

.button {
  display: inline-block;
  padding: 0.95rem 1.35rem;
  border: 1px solid var(--copper);
  color: var(--paper);
  font-weight: 500;
  text-decoration: none;
  transition: background 180ms ease, color 180ms ease;
}

.button:hover,
.button:focus-visible {
  background: var(--copper);
  color: var(--ink);
}

.signal {
  position: relative;
  display: grid;
  place-items: center;
  width: min(100%, 390px);
  aspect-ratio: 1;
  margin-inline: auto;
}

.signal::before,
.signal::after {
  position: absolute;
  content: "";
  background: var(--line);
}

.signal::before { width: 100%; height: 1px; }
.signal::after { width: 1px; height: 100%; }

.signal-orbit {
  position: absolute;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.orbit-one { inset: 4%; }
.orbit-two { inset: 20%; }
.orbit-three { inset: 37%; border-color: rgba(201, 152, 98, 0.45); }

.signal-core {
  z-index: 1;
  display: grid;
  place-items: center;
  width: 4.6rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--copper);
  color: var(--ink);
  font-family: "Manrope", sans-serif;
  font-weight: 600;
}

.signal-point {
  position: absolute;
  width: 0.55rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 8px rgba(145, 203, 180, 0.08);
}

.point-one { top: 12%; left: 26%; }
.point-two { right: 8%; bottom: 39%; }
.point-three { bottom: 17%; left: 20%; }

.proof {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-block: 1px solid var(--line);
}

.proof article { padding: 2rem 1.5rem; border-right: 1px solid var(--line); }
.proof article:first-child { padding-left: 0; }
.proof article:last-child { border-right: 0; }

.proof strong,
.proof span { display: block; }

.proof strong {
  color: var(--copper);
  font-family: "Manrope", sans-serif;
  font-size: clamp(2rem, 3.5vw, 3.4rem);
  font-weight: 500;
  letter-spacing: -0.05em;
}

.proof span { color: var(--paper-muted); font-size: 0.82rem; }

.section {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 2rem;
  padding-block: clamp(4rem, 7vw, 6.5rem);
  border-bottom: 1px solid var(--line);
}

.section-content h2 { max-width: 800px; margin-bottom: 1.75rem; }

.large-copy {
  max-width: 850px;
  margin-bottom: 2.5rem;
  color: var(--paper-muted);
  font-size: clamp(1.3rem, 2.3vw, 2rem);
  line-height: 1.45;
}

.two-column-copy {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
  max-width: 900px;
  color: var(--paper-muted);
}

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

.service-list article {
  display: grid;
  grid-template-columns: 60px 1fr 1.2fr;
  gap: 2rem;
  padding-block: 2rem;
  border-bottom: 1px solid var(--line);
}

.service-list article > span { color: var(--copper); font-size: 0.75rem; }
.service-list h3 { margin-bottom: 0; font-family: "Manrope", sans-serif; font-size: 1.25rem; font-weight: 500; }
.service-list p { margin-bottom: 0; color: var(--paper-muted); }

.case-study {
  margin-block: clamp(2rem, 6vw, 5rem);
  padding: clamp(2rem, 6vw, 5rem);
  background: var(--paper);
  color: var(--ink);
}

.case-study h2 { max-width: 900px; margin-bottom: 3rem; }
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 5rem; }
.case-grid article { border-top: 1px solid rgba(7, 22, 17, 0.24); padding-top: 2rem; }
.case-number { margin-bottom: 1rem; color: #97683b; font-family: "Manrope", sans-serif; font-size: clamp(3rem, 6vw, 6rem); line-height: 1; letter-spacing: -0.06em; }
.case-grid h3 { font-family: "Manrope", sans-serif; font-size: 1.25rem; font-weight: 600; }
.case-grid article > p:last-child { color: #425048; }

.footprint-content { display: grid; grid-template-columns: 1.4fr 1fr; gap: 4rem; }
.footprint-content ul { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.footprint-content li { display: flex; gap: 2rem; padding-block: 1.4rem; border-bottom: 1px solid var(--line); font-family: "Manrope", sans-serif; font-size: 1.25rem; }
.footprint-content li span { color: var(--copper); font-size: 0.75rem; }

.contact { padding-block: clamp(5rem, 9vw, 8rem); text-align: center; }
.contact h2 { max-width: 900px; margin-inline: auto; margin-bottom: 1.75rem; }
.contact-email { display: inline-block; color: var(--copper); font-family: "Manrope", sans-serif; font-size: clamp(1.35rem, 3vw, 2.8rem); text-decoration-thickness: 1px; text-underline-offset: 0.35em; }
.contact-details { display: flex; justify-content: center; gap: 2rem; margin-top: 3.5rem; color: var(--paper-muted); font-size: 0.9rem; }
.contact-details a { text-decoration: none; }
.contact-details address { font-style: normal; }

footer {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 2rem;
  padding-block: 2rem;
  border-top: 1px solid var(--line);
  color: var(--paper-muted);
  font-size: 0.78rem;
}

footer p { margin: 0; }
.footer-brand { color: var(--paper); }

@media (max-width: 850px) {
  .hero { min-height: auto; padding: calc(4rem + 88px) max(1.5rem, calc((100% - var(--max-width)) / 2)) 4rem; }
  .proof { grid-template-columns: repeat(2, 1fr); }
  .proof article:nth-child(2) { border-right: 0; }
  .proof article:nth-child(-n + 2) { border-bottom: 1px solid var(--line); }
  .proof article:nth-child(3) { padding-left: 0; }
  .section { grid-template-columns: 1fr; }
  .service-list article { grid-template-columns: 45px 1fr; }
  .service-list p { grid-column: 2; }
  .footprint-content { grid-template-columns: 1fr; }
  footer { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .site-header,
  .proof,
  .section,
  .case-study,
  .contact,
  footer { width: min(calc(100% - 2rem), var(--max-width)); }
  .site-header { min-height: 74px; }
  .site-header .brand > span:last-child { display: none; }
  nav { gap: 1.25rem; }
  .hero {
    width: 100%;
    padding: calc(4rem + 74px) 1rem 4rem;
    background-position: 55% center;
    background-blend-mode: normal;
    box-shadow: inset 0 0 0 100vmax rgba(3, 13, 10, 0.28);
  }
  .hero h1,
  .hero-intro,
  .hero .eyebrow { text-shadow: 0 2px 16px rgba(0, 0, 0, 0.62); }
  h1 { font-size: clamp(2.65rem, 12vw, 4rem); }
  .two-column-copy,
  .case-grid { grid-template-columns: 1fr; gap: 2rem; }
  .case-study h2 { margin-bottom: 2rem; }
  .contact-details { flex-direction: column; gap: 0.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}