* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #1f2933;
  line-height: 1.6;
  background: #ffffff;
}

header {
  background: #00205B;
  color: white;
  padding: 22px 8%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 10;
}

header h1 {
  margin: 0;
  font-size: 26px;
  letter-spacing: 1px;
}

nav a {
  color: white;
  margin-left: 22px;
  text-decoration: none;
  font-size: 15px;
}

nav a:hover {
  color: #A5ACAF;
}

.hero {
  background-image:
    linear-gradient(
      rgba(0, 32, 91, 0.25),
      rgba(0, 32, 91, 0.25)
    ),
    url("../images/houston.jpg");

  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: white;
  padding: 130px 8%;
}

.hero-content {
  max-width: 900px;
}

.hero h2 {
  font-size: 52px;
  line-height: 1.12;
  margin: 0 0 22px 0;
}

.hero p {
  font-size: 21px;
  max-width: 780px;
}

.button {
  display: inline-block;
  margin-top: 24px;
  padding: 14px 24px;
  background: white;
  color: #00205B;
  text-decoration: none;
  font-weight: bold;
  border-radius: 6px;
}

.button:hover {
  background: #e5e7eb;
}

section {
  padding: 70px 8%;
  background: white;
}

section:nth-of-type(even) {
  background: #f1f5f9;
}

h2 {
  font-size: 32px;
  color: #00205B;
  margin-bottom: 20px;
}

h3 {
  color: #00205B;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 30px;
}

.card {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  padding: 26px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.team-card {
  text-align: center;
}

.team-card img {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  margin: 0 auto 20px auto;
  border: 4px solid #00205B;
  background: #e2e8f0;
}

.tagline {
  font-weight: bold;
  color: #00205B;
}

footer {
  background: #00205B;
  color: white;
  text-align: center;
  padding: 35px 8%;
}

footer a {
  color: white;
  text-decoration: none;
}

@media (max-width: 760px) {
  header {
    flex-direction: column;
    align-items: flex-start;
  }

  nav {
    margin-top: 12px;
  }

  nav a {
    display: inline-block;
    margin: 6px 14px 6px 0;
  }

  .hero h2 {
    font-size: 36px;
  }

  .hero p {
    font-size: 18px;
  }
}