* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  line-height: 1.6;
  color: #333;
}

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

header {
  background: #0a2540;
  color: white;
  padding: 1rem 0;
}

header h1 {
  display: inline-block;
}

nav {
  float: right;
}

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

.hero {
  background: linear-gradient(to right, #0a2540, #133b6d);
  color: white;
  text-align: center;
  padding: 4rem 0;
}

.section {
  padding: 3rem 0;
}

.gray {
  background: #f4f4f4;
}

.cards, .portfolio {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.card {
  background: white;
  padding: 1.5rem;
  text-align: center;
  border-radius: 5px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.portfolio img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 5px;
}

form {
  max-width: 500px;
  display: grid;
  gap: 15px;
}

input, textarea, select {
  padding: 10px;
}

.btn {
  background: #0a2540;
  color: white;
  padding: 10px;
  border: none;
  cursor: pointer;
}

footer {
  background: #0a2540;
  color: white;
  text-align: center;
  padding: 1rem;
}

.call-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #28a745;
  color: white;
  padding: 15px 20px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: bold;
}