body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: #f5f7fa;
  color: #222;
}

/* HEADER */
header {
  background: #0A1F44;
  padding: 15px 0;
  color: white;
  position: sticky;
  top: 0;
}

.container {
  width: 90%;
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 600;
  letter-spacing: 1px;
}

nav a {
  color: white;
  margin-left: 20px;
  text-decoration: none;
}

/* HERO */
.hero {
  height: 90vh;
  background: linear-gradient(rgba(10,31,68,0.85), rgba(0,0,0,0.6)),
  url('https://images.unsplash.com/photo-1497366216548-37526070297c');
  background-size: cover;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: white;
}

.hero h1 {
  font-size: 60px;
  margin: 0;
}

.tagline {
  font-size: 24px;
  margin-top: 10px;
  color: #FF7A00;
}

.sub {
  margin-top: 20px;
  font-size: 18px;
}

/* SECTION */
.section {
  padding: 80px 20px;
  text-align: center;
}

.section.alt {
  background: white;
}

.content {
  max-width: 800px;
  margin: auto;
}

/* GRID */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px,1fr));
  gap: 25px;
  width: 90%;
  margin: auto;
  margin-top: 30px;
}

/* CARD */
.card {
  background: white;
  padding: 30px;
  border-radius: 10px;
  transition: 0.3s;
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.card:hover {
  transform: translateY(-5px);
}

/* WHY */
.why-box {
  background: #0A1F44;
  color: white;
  padding: 25px;
  border-radius: 10px;
}

/* CONTACT */
.contact {
  background: #0A1F44;
  color: white;
}

/* FOOTER */
footer {
  background: black;
  color: white;
  text-align: center;
  padding: 10px;
}