:root {
  --ink: #16201d;
  --muted: #53615d;
  --paper: #f7f8f5;
  --white: #ffffff;
  --forest: #1f5d4a;
  --teal: #167080;
  --gold: #c7923a;
  --clay: #9a5947;
  --line: rgba(22, 32, 29, 0.14);
  --shadow: 0 20px 50px rgba(22, 32, 29, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

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

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  color: var(--white);
  transition: background 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  color: var(--ink);
  background: rgba(247, 248, 245, 0.94);
  box-shadow: 0 10px 30px rgba(22, 32, 29, 0.08);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 7px;
  font-size: 0.82rem;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  gap: clamp(14px, 3vw, 34px);
  font-size: 0.94rem;
  font-weight: 700;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: 132px clamp(18px, 6vw, 86px) 86px;
  color: var(--white);
}

.page-hero {
  padding: 162px 0 82px;
  color: var(--white);
  background:
    linear-gradient(100deg, rgba(23, 35, 31, 0.96), rgba(31, 93, 74, 0.9)),
    url("assets/western-economics-hero.png") center / cover;
}

.page-hero-grid,
.summary-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.82fr);
  gap: clamp(28px, 6vw, 78px);
  align-items: end;
}

.page-hero h1 {
  margin-bottom: 0;
  font-size: clamp(2.35rem, 5vw, 4.8rem);
}

.page-hero p:last-child {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 1.08rem;
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(13, 28, 24, 0.88) 0%, rgba(13, 28, 24, 0.72) 41%, rgba(13, 28, 24, 0.18) 100%),
    linear-gradient(0deg, rgba(13, 28, 24, 0.22), rgba(13, 28, 24, 0.08));
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 24px;
  font-size: clamp(2.55rem, 6vw, 5.6rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 3.5vw, 3.45rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.18rem;
  line-height: 1.25;
}

.hero-copy {
  max-width: 660px;
  margin-bottom: 34px;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(1.03rem, 2vw, 1.28rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: 7px;
  padding: 13px 18px;
  font-weight: 800;
  line-height: 1.15;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  color: var(--white);
  background: var(--forest);
  box-shadow: 0 16px 34px rgba(31, 93, 74, 0.28);
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.46);
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.section-inner {
  width: min(1160px, calc(100% - 36px));
  margin: 0 auto;
}

.section-band {
  background: var(--white);
}

.intro {
  padding: 74px 0;
}

.intro-grid,
.approach-grid,
.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 1fr);
  gap: clamp(28px, 6vw, 78px);
  align-items: start;
}

.intro p:last-child,
.approach p,
.contact p {
  color: var(--muted);
  font-size: 1.08rem;
}

.expertise {
  padding: 96px 0;
}

.expertise > h2 {
  max-width: 760px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 34px;
}

.service-card {
  min-height: 310px;
  border: 1px solid var(--line);
  border-top: 4px solid var(--teal);
  border-radius: 8px;
  padding: 24px;
  background: var(--white);
  box-shadow: 0 14px 35px rgba(22, 32, 29, 0.06);
}

.service-card:nth-child(2) {
  border-top-color: var(--gold);
}

.service-card:nth-child(3) {
  border-top-color: var(--forest);
}

.service-card:nth-child(4) {
  border-top-color: var(--clay);
}

.service-icon {
  display: block;
  margin-bottom: 32px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.service-card p,
.proof-list span {
  color: var(--muted);
}

.approach {
  padding: 92px 0;
}

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

.proof-list div {
  border-left: 4px solid var(--forest);
  padding: 18px 0 18px 20px;
  background: linear-gradient(90deg, rgba(31, 93, 74, 0.08), rgba(255, 255, 255, 0));
}

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

.proof-list strong {
  margin-bottom: 4px;
  font-size: 1.04rem;
}

.contact {
  align-items: center;
  padding: 92px 0;
}

.researchers-section {
  padding: 92px 0;
}

.researcher-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.researcher-card {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(24px, 4vw, 34px);
  background: var(--white);
  box-shadow: 0 14px 35px rgba(22, 32, 29, 0.06);
}

.secondary-lead {
  margin-top: 10px;
}

.placeholder-profile {
  border-style: dashed;
}

.researcher-card h2 {
  margin-bottom: 8px;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
}

.researcher-card p:not(.section-kicker) {
  color: var(--muted);
}

.researcher-initials {
  display: grid;
  width: 76px;
  height: 76px;
  place-items: center;
  border-radius: 8px;
  color: var(--white);
  background: linear-gradient(135deg, var(--forest), var(--teal));
  font-weight: 800;
}

.experience-line {
  margin-bottom: 22px;
  color: var(--forest) !important;
  font-weight: 800;
}

.research-summary {
  padding: 78px 0;
}

.summary-grid {
  align-items: start;
}

.summary-grid p:last-child {
  color: var(--muted);
  font-size: 1.08rem;
}

.contact h2 {
  max-width: 820px;
}

.contact-button {
  justify-self: end;
  word-break: break-word;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 26px clamp(18px, 4vw, 56px);
  color: rgba(255, 255, 255, 0.78);
  background: #17231f;
  font-size: 0.92rem;
}

@media (max-width: 940px) {
  .site-header {
    align-items: flex-start;
  }

  .brand span:last-child {
    max-width: 180px;
    line-height: 1.15;
  }

  .intro-grid,
  .approach-grid,
  .contact,
  .page-hero-grid,
  .summary-grid {
    grid-template-columns: 1fr;
  }

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

  .contact-button {
    justify-self: start;
  }

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

@media (max-width: 640px) {
  .site-header {
    position: absolute;
    flex-direction: column;
    gap: 14px;
  }

  .nav-links {
    width: 100%;
    justify-content: space-between;
  }

  .hero {
    min-height: 860px;
    padding-top: 172px;
  }

  .hero-overlay {
    background: linear-gradient(90deg, rgba(13, 28, 24, 0.91), rgba(13, 28, 24, 0.55));
  }

  .button {
    width: 100%;
  }

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

  .service-card {
    min-height: auto;
  }

  .page-hero {
    padding-top: 202px;
  }

  .researcher-card {
    grid-template-columns: 1fr;
  }

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

  .site-footer {
    flex-direction: column;
  }
}