* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', sans-serif;
  color: #333;
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}

header {
  background: ffffff;
  color: #00334d;
  padding: 1.5rem 0;
}

header h1 {
  text-align: center;
  font-size: 2.5rem;
  letter-spacing: 1px;
}

.tagline {
  font-size: 11px;
  font-weight: bold;
}

nav ul {
  display: flex;
  justify-content: center;
  list-style: none;
  gap: 1.5rem;
  margin-top: 0.5rem;
}

nav a {
  color: #00334d;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s;
}

nav a:hover {
  color: #66ccff;
}

.hero {
  background: linear-gradient(to right, #0077b6, #0096c7);
  color: #fff;
  padding: 4rem 1rem;
  text-align: center;
}

.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  max-width: 700px;
  margin: auto;
}

.hero .btn {
  display: inline-block;
  margin-top: 2rem;
  padding: 0.75rem 2rem;
  background: #00b4d8;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  transition: background 0.3s;
}

.hero .btn:hover {
  background: #90e0ef;
  color: #00334d;
}

.features {
  background: #f0f8ff;
  padding: 3rem 1rem;
}

.feature {
  margin-bottom: 2.5rem;
}

.feature h3 {
  color: #0077b6;
  margin-bottom: 0.5rem;
}

footer {
  background: #00334d;
  color: #fff;
  text-align: center;
  padding: 1rem 0;
}