:root {
  --blue: #0f58bd;
  --blue-dark: #0b3472;
  --gold: #ffc43e;
  --ink: #142033;
  --muted: #647187;
  --paper: #f7fbff;
  --surface: #ffffff;
  --line: rgba(15, 88, 189, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at top left, rgba(255, 196, 62, 0.22), transparent 34rem),
    linear-gradient(145deg, #ffffff 0%, var(--paper) 52%, #eef6ff 100%);
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  margin: 0;
  min-height: 100vh;
}

a {
  color: inherit;
}

.hero {
  align-items: center;
  display: flex;
  justify-content: center;
  min-height: 72vh;
  padding: clamp(44px, 8vw, 92px) 20px clamp(32px, 6vw, 72px);
  text-align: center;
}

.hero-content {
  max-width: 880px;
}

.logo {
  height: clamp(108px, 18vw, 178px);
  margin-bottom: clamp(22px, 4vw, 32px);
  object-fit: contain;
  width: clamp(108px, 18vw, 178px);
}

.eyebrow {
  color: var(--blue);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0;
  margin: 0 0 12px;
  text-transform: uppercase;
}

h1 {
  color: var(--blue-dark);
  font-size: clamp(2.7rem, 8.4vw, 6.8rem);
  letter-spacing: 0;
  line-height: 0.96;
  margin: 0 auto 24px;
  max-width: 940px;
}

.intro {
  color: var(--muted);
  font-size: clamp(1.02rem, 2.3vw, 1.26rem);
  line-height: 1.7;
  margin: 0 auto;
  max-width: 760px;
}

.hero-action {
  align-items: center;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 34px;
}

.button {
  align-items: center;
  background: var(--blue);
  border-radius: 8px;
  color: #ffffff;
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  text-decoration: none;
}

.button:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 4px;
}

.collaboration {
  margin: 0 auto;
  max-width: 1120px;
  padding: 0 20px clamp(54px, 8vw, 96px);
}

.section-heading {
  margin: 0 auto 24px;
  max-width: 720px;
  text-align: center;
}

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

h2 {
  color: var(--blue-dark);
  font-size: clamp(1.9rem, 4vw, 3.3rem);
  line-height: 1.06;
  margin-bottom: 0;
}

.card-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

article {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 48px rgba(11, 52, 114, 0.08);
  min-height: 188px;
  padding: clamp(22px, 3vw, 30px);
}

article::before {
  background: var(--gold);
  content: "";
  display: block;
  height: 4px;
  margin-bottom: 20px;
  width: 44px;
}

h3 {
  color: var(--blue-dark);
  font-size: 1.08rem;
  line-height: 1.3;
  margin-bottom: 10px;
}

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

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  gap: 18px;
  justify-content: space-between;
  padding: 24px clamp(20px, 6vw, 72px);
}

.site-footer p {
  margin: 0;
}

@media (max-width: 520px) {
  .hero {
    min-height: auto;
    padding-top: 36px;
  }

  .intro {
    line-height: 1.62;
  }

  .button {
    width: 100%;
  }

  .card-grid,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .card-grid {
    display: grid;
  }

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

@media (min-width: 521px) and (max-width: 860px) {
  .card-grid {
    grid-template-columns: 1fr;
  }

  article {
    min-height: auto;
  }

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