:root {
  --ink: #24302f;
  --muted: #5b6670;
  --subtle: #eef2f1;
  --line: #d8e0de;
  --panel: #ffffff;
  --page: #f8faf9;
  --accent: #0f766e;
  --accent-strong: #0b5f59;
  --warm: #9a4f2f;
  --warm-soft: #fff2ea;
  --shadow: 0 16px 40px rgba(22, 42, 38, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--page);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  -webkit-text-size-adjust: 100%;
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

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

p {
  margin-top: 0;
  margin-bottom: 1rem;
}

ul,
ol {
  margin-top: 0;
  margin-bottom: 1rem;
}

h1,
h2,
h3 {
  margin-top: 0;
  color: var(--ink);
  line-height: 1.15;
  letter-spacing: 0;
}

h1 {
  max-width: none;
  margin-bottom: 1rem;
  font-size: 3.9rem;
}

h2 {
  margin-bottom: 1rem;
  font-size: 2rem;
}

h3 {
  margin-bottom: 0.55rem;
  font-size: 1.15rem;
}

img {
  max-width: 100%;
}

.container {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 0.75rem;
  z-index: 20;
  transform: translateY(-150%);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  background: var(--ink);
  color: #fff;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(216, 224, 222, 0.9);
  background: rgba(248, 250, 249, 0.94);
  backdrop-filter: blur(14px);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  display: inline-grid;
  width: 2.35rem;
  height: 2.35rem;
  place-items: center;
  border-radius: 7px;
  color: #fff;
  background: var(--accent);
  font-size: 0.85rem;
}

.brand-text {
  font-size: 1rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  overflow-x: auto;
  padding: 0.7rem 0;
  white-space: nowrap;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 2.2rem;
  padding: 0.4rem 0.65rem;
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.92rem;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus {
  color: var(--ink);
  background: var(--subtle);
}

.site-main {
  padding: 3rem 0 4rem;
}

.hero {
  padding: 3.5rem 0 4rem;
}

.lead {
  max-width: none;
  color: #3f4a48;
  font-size: 1.2rem;
}

.hero p {
  max-width: none;
}

.section {
  padding: 1.4rem 0 3.25rem;
  border-top: 1px solid var(--line);
}

.section-header {
  max-width: none;
  margin-bottom: 1.6rem;
}

.section-header h2 {
  font-size: 2.65rem;
}

.section-header p:last-child {
  color: var(--muted);
}

.package-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.package-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem 1.1rem;
  background: var(--panel);
}

.package-card:hover {
  border-color: #b8c8c4;
  box-shadow: 0 10px 28px rgba(22, 42, 38, 0.07);
}

.package-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.8rem;
}

.package-card h3 a {
  color: var(--ink);
}

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

.language-list {
  align-self: end;
  justify-self: end;
  justify-content: flex-end;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.language-list li {
  padding: 0.2rem 0.45rem;
  border-radius: 5px;
  color: var(--accent-strong);
  background: #e8f4f2;
  font-size: 0.78rem;
  font-weight: 700;
}

.reference-list {
  display: grid;
  gap: 0.8rem;
  padding-left: 1.4rem;
}

.reference-list li {
  padding-left: 0.25rem;
}

.reference-list span {
  display: block;
  color: var(--muted);
}

.people-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.6rem 1rem;
  padding: 0;
  list-style: none;
}

.people-list li {
  border-top: 1px solid var(--line);
  padding-top: 0.65rem;
  color: var(--muted);
}

.people-list a {
  display: block;
  color: var(--ink);
  font-weight: 700;
}

.funding-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 1rem 0;
  padding: 0;
  list-style: none;
}

.funding-list a {
  display: inline-flex;
  min-height: 2rem;
  align-items: center;
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  font-weight: 700;
  text-decoration: none;
}

.page {
  max-width: none;
  padding: 1rem 0 2rem;
}

.page > h1:first-child {
  max-width: none;
  font-size: 3rem;
}

.page h2 {
  margin-top: 2.5rem;
}

.page li {
  margin-bottom: 0.55rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: #fff;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
  font-size: 0.92rem;
}

@media (max-width: 840px) {
  .nav-shell {
    align-items: flex-start;
    flex-direction: column;
    gap: 0;
    padding-top: 0.75rem;
  }

  .site-nav {
    width: 100%;
  }

  .hero {
    padding-top: 2rem;
  }

  h1 {
    font-size: 3.2rem;
  }

  .package-grid,
  .people-list {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 520px) {
  .container {
    width: calc(100% - 1rem);
    max-width: 1120px;
  }

  .site-main {
    padding-top: 1.5rem;
  }

  .site-nav {
    flex-wrap: wrap;
    overflow: visible;
    white-space: normal;
  }

  .site-nav a {
    min-height: 2rem;
    padding: 0.3rem 0.5rem;
    font-size: 0.88rem;
  }

  .hero {
    gap: 2rem;
  }

  h1 {
    font-size: 2.5rem;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 1rem 0;
  }
}