body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #fff;
  color: #222;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid #eee;
}

.logo {
  display: flex;
  align-items: center;
  font-size: 24px;
  font-weight: bold;
}

.logo img {
  height: 30px;
  margin-right: 10px;
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #333;
  font-weight: 500;
}

main {
  text-align: center;
  padding: 50px 20px;
}

h1 {
  font-size: 32px;
  margin-bottom: 10px;
}

p {
  font-size: 18px;
  margin-bottom: 40px;
}

.grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

.card {
  background: #f9f9f9;
  border-radius: 12px;
  padding: 30px;
  width: 200px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.05);
  transition: 0.3s ease;
}

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

.card .icon {
  font-size: 36px;
  margin-bottom: 10px;
}

.orange { border-left: 6px solid #f97316; }
.red    { border-left: 6px solid #ef4444; }
.green  { border-left: 6px solid #22c55e; }
.blue   { border-left: 6px solid #3b82f6; }