:root {
  --navy: #16324f;
  --blue: #2e74b5;
  --pale: #eef5fb;
  --ink: #1f2933;
  --muted: #5f6b76;
  --line: #d8e2eb;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

.wrap {
  width: min(1100px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  padding: 72px 0 56px;
  color: var(--white);
  background: var(--navy);
}

.eyebrow {
  margin-bottom: 8px;
  color: #b9d8f2;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

h1 {
  max-width: 850px;
  margin: 8px 0 16px;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.05;
}

h2 {
  margin-top: 0;
  color: var(--navy);
}

.intro {
  max-width: 780px;
  font-size: 1.12rem;
}

.period {
  color: #d8e8f5;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  padding: 11px 16px;
  color: var(--navy);
  background: var(--white);
  border-radius: 8px;
  font-weight: 700;
  text-decoration: none;
}

.button:hover {
  opacity: 0.9;
}

.button.secondary {
  color: var(--white);
  background: transparent;
  border: 1px solid #8bb9df;
}

main section {
  padding: 48px 0;
  border-bottom: 1px solid var(--line);
}

.dashboard-frame {
  overflow: hidden;
  background: var(--pale);
  border: 1px solid var(--line);
  border-radius: 12px;
}

tableau-viz {
  display: block;
  width: 100%;
}

.dashboard-link {
  margin-top: 14px;
  color: var(--muted);
}

.dashboard-link a {
  color: var(--blue);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.cards article {
  padding: 22px;
  background: var(--pale);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.cards h3 {
  margin-top: 0;
  color: var(--blue);
}

footer {
  padding: 30px 0;
  color: var(--muted);
}

@media (max-width: 760px) {
  .hero {
    padding: 52px 0 42px;
  }

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

  .dashboard-frame {
    overflow-x: auto;
  }
}