* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: #f8f9fa;
  color: #333;
  line-height: 1.6;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 5%;
  background-color: #ffffff;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}

header .logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: #0056b3;
}

header nav a {
  margin-left: 1.5rem;
  text-decoration: none;
  color: #555;
  font-weight: 500;
}

.hero {
  text-align: center;
  padding: 4rem 1rem;
  background-color: #0056b3;
  color: white;
}

.hero h1 {
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: 3rem auto;
}

h2 {
  text-align: center;
  margin-bottom: 2rem;
  color: #222;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background: white;
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card h3 {
  margin-bottom: 0.5rem;
  color: #0056b3;
}

.card .description {
  font-size: 0.95rem;
  color: #666;
  margin-bottom: 1rem;
}

.card .price {
  font-size: 1.3rem;
  font-weight: bold;
  color: #111;
  margin-bottom: 1rem;
}

.btn {
  background-color: #0056b3;
  color: white;
  border: none;
  padding: 0.75rem 1rem;
  border-radius: 5px;
  cursor: pointer;
  font-weight: bold;
  width: 100%;
}

.btn:hover {
  background-color: #004085;
}

.text-section {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.text-section h3 {
  margin-top: 1rem;
  margin-bottom: 0.5rem;
}

.text-section ul {
  list-style: none;
  margin-top: 1rem;
}

.text-section li {
  margin-bottom: 0.5rem;
}

/* Modal Checkout */
.modal {
  display: none;
  position: fixed;
  z-index: 200;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.5);
  justify-content: center;
  align-items: center;
}

.modal-content {
  background-color: white;
  padding: 2rem;
  border-radius: 8px;
  width: 90%;
  max-width: 450px;
  position: relative;
}

.close {
  position: absolute;
  right: 1.2rem;
  top: 1rem;
  font-size: 1.5rem;
  cursor: pointer;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
}

.form-group input {
  width: 100%;
  padding: 0.6rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}

footer {
  text-align: center;
  padding: 1.5rem;
  background-color: #222;
  color: #888;
  font-size: 0.85rem;
  margin-top: 3rem;
}