* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #f7f9fc;
  color: #1c1c1c;
}

/* HEADER */
header {
  background: #0e2a47;
  color: white;
  padding: 14px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  margin: 0;
  font-size: 22px;
}

nav a {
  color: white;
  text-decoration: none;
  margin-left: 18px;
  font-size: 14px;
}

nav a.active {
  border-bottom: 2px solid #1fb6ff;
}

/* HERO SECTION */
.hero {
  background: url("https://images.pond5.com/boeing-747-flying-through-night-footage-051558030_iconl.jpeg")
              center/cover no-repeat;
  padding: 140px 30px;
  text-align: center;
  color: white;
  text-shadow: 0 3px 12px rgba(0,0,0,0.7);
}

.hero h2 {
  font-size: 46px;
  margin-bottom: 12px;
}

.hero p {
  max-width: 700px;
  margin: 0 auto;
  font-size: 18px;
}

/* BUTTON */
.cta-btn {
  display: inline-block;
  margin-top: 20px;
  background: #1fb6ff;
  color: white;
  padding: 12px 22px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
}

/* CONTENT SECTIONS */
section {
  padding: 60px 30px;
}

.section-title {
  text-align: center;
  font-size: 28px;
  margin-bottom: 28px;
}

.grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: white;
  padding: 22px;
  border-radius: 14px;
  box-shadow: 0 6px 14px rgba(0,0,0,0.06);
}

.card h3 {
  margin-top: 0;
  color: #0e2a47;
}

.card ul {
  padding-left: 18px;
}

.card ul li {
  margin-bottom: 6px;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 22px;
  background: #0e2a47;
  color: white;
  font-size: 14px;
}
.page-intro {
  max-width: 900px;
  margin: 0 auto 26px auto;
  font-size: 16px;
  line-height: 1.6;
  text-align: center;
}

.note-box {
  max-width: 900px;
  margin: 30px auto 0 auto;
  padding: 16px 18px;
  border-radius: 12px;
  background: #eaf4ff;
  border: 1px solid #cfe7ff;
}

.simple-form {
  display: grid;
  gap: 12px;
}

.simple-form label {
  display: grid;
  gap: 6px;
  font-size: 14px;
}

.simple-form input,
.simple-form select,
.simple-form textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #d8e0ea;
  border-radius: 10px;
  font-size: 14px;
  font-family: inherit;
}

.simple-form button {
  border: none;
  cursor: pointer;
}