:root {
  --color-primary: #17212b;
  --color-primary-contrast: #ffffff;
  --color-accent: #d7f36b;
  --color-accent-contrast: #17212b;
  --color-highlight: #ff735c;
  --color-bg: #f3f4ef;
  --color-surface: #ffffff;
  --color-surface-soft: #e8ece5;
  --color-text: #26313a;
  --color-muted: #64717a;
  --color-link: #146b68;
  --color-link-hover: #c94e3d;
  --color-border: #d7ddd5;
  --font-heading: "Arial", "Helvetica Neue", sans-serif;
  --font-body: "Arial", "Helvetica Neue", sans-serif;
  --radius: 1.25rem;
  --radius-small: 0.7rem;
  --shadow-soft: 0 1rem 2.5rem rgba(23, 33, 43, 0.08);
  --shadow-hover: 0 1.25rem 3rem rgba(23, 33, 43, 0.14);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

h2 {
  margin: 0 0 1.2rem;
  font-size: clamp(1.45rem, 2vw, 2rem);
}

a,
a:visited {
  color: var(--color-link);
  text-decoration: underline;
  text-decoration-thickness: 0.11em;
  text-underline-offset: 0.18em;
  transition: color 180ms ease, opacity 180ms ease;
}

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

.site-shell {
  width: min(1180px, calc(100% - 2.5rem));
  margin-inline: auto;
}

.site-header {
  margin-top: 1.25rem;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.utility-nav {
  padding: 0.65rem clamp(1.25rem, 3vw, 2.5rem);
  background: var(--color-primary);
  color: var(--color-primary-contrast);
  font-size: 0.88rem;
}

.utility-nav ul,
.primary-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.utility-nav a,
.utility-nav a:visited {
  color: var(--color-accent);
}

.brand-row {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: clamp(1.5rem, 5vw, 4rem) clamp(1.25rem, 5vw, 4rem);
}

.brand-row img {
  width: auto;
  height: clamp(70px, 10vw, 116px);
  max-width: 150px;
  object-fit: contain;
}

.brand-title {
  max-width: 800px;
  margin: 0;
  color: var(--color-primary);
  font-size: clamp(2.3rem, 6vw, 5.7rem);
  line-height: 0.92;
}

.brand-subtitle {
  margin: 1.2rem 0 0;
  color: var(--color-muted);
  font-size: 1.05rem;
  font-weight: 700;
}

.primary-nav {
  padding: 0.95rem clamp(1.25rem, 3vw, 2.5rem);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface-soft);
}

.primary-nav a {
  font-size: 0.94rem;
  font-weight: 800;
}

main {
  padding-block: 2rem 5rem;
}

.home-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(270px, 0.75fr);
  gap: 1.25rem;
  align-items: start;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.8fr);
  gap: 1.25rem;
  margin-top: 1.25rem;
}

.panel {
  min-width: 0;
  padding: clamp(1.25rem, 3vw, 2.15rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.panel:hover {
  box-shadow: var(--shadow-hover);
}

.hero-panel {
  position: relative;
  overflow: hidden;
  padding: 0;
  background: var(--color-primary);
}

.hero-panel figure {
  position: relative;
  margin: 0;
}

.hero-panel figure img {
  display: block;
  width: 100%;
  min-height: 350px;
  max-height: 620px;
  object-fit: cover;
  opacity: 0.86;
}

.hero-panel figcaption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 2rem clamp(1.25rem, 4vw, 3rem) 1.5rem;
  background: linear-gradient(transparent, rgba(23, 33, 43, 0.95));
  color: var(--color-primary-contrast);
  font-size: clamp(1.3rem, 3vw, 2.3rem);
  font-weight: 800;
}

.advertisement {
  padding: 1rem;
  text-align: center;
  background: var(--color-primary);
}

.advertisement img,
.promo img {
  max-width: 100%;
  height: auto;
}

.slider-controls {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 0 1rem 1rem;
  background: var(--color-primary);
}

.slider-controls img {
  width: 32px;
  height: 40px;
  object-fit: contain;
}

.side-links h2 {
  padding-bottom: 0.9rem;
  border-bottom: 3px solid var(--color-accent);
}

.side-links ul,
.footer-links ul {
  margin: 0;
  padding-left: 1.15rem;
}

.side-links li,
.footer-links li {
  margin-block: 0.72rem;
}

.new-badge {
  display: inline-block;
  margin-left: 0.45rem;
  padding: 0.08rem 0.45rem;
  border-radius: 999px;
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  font-size: 0.7rem;
  font-weight: 800;
}

.social-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.social-icons img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.events-list p {
  margin-block: 1.15rem;
}

.events-list p:first-of-type {
  color: var(--color-muted);
}

.principal-photo {
  display: block;
  width: min(100%, 300px);
  margin: 0 auto 1.25rem;
  border-radius: var(--radius-small);
}

.promo {
  margin-top: 1.25rem;
}

.promo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  align-items: center;
  margin-top: 1.25rem;
  text-align: center;
}

.research-card {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.research-card img {
  flex: 0 0 90px;
  border-radius: var(--radius-small);
}

.site-footer {
  padding: 4rem 0 1.5rem;
  background: var(--color-primary);
  color: var(--color-primary-contrast);
}

.site-footer h2,
.site-footer h3 {
  color: var(--color-accent);
}

.site-footer a,
.site-footer a:visited {
  color: var(--color-accent);
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--color-highlight);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2rem;
}

.copyright {
  margin: 2.5rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--color-muted);
  font-size: 0.88rem;
}

@media (max-width: 820px) {

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

@media (max-width: 600px) {
  .site-shell {
    width: min(100% - 1rem, 1180px);
  }

  .brand-row {
    display: block;
    text-align: center;
  }

  .brand-row img {
    margin-bottom: 1.25rem;
  }

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

  .research-card {
    align-items: flex-start;
  }
}