/* General Reset */
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f9f9f9;
  color: #333;
}

/* Header */
header {
  background: #0077b6;
  color: white;
  padding: 15px;
  text-align: center;
}

header h1 {
  margin: 0;
}

nav {
  margin-top: 10px;
}

nav a {
  color: white;
  margin: 0 10px;
  text-decoration: none;
  padding-bottom: 5px;
}

nav a.active {
  border-bottom: 2px solid #fff;
  font-weight: bold;
}

/* Cards */
.card {
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  margin: 20px auto;
  max-width: 900px;
}

/* Profile Image */
.profile-img {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  margin: 15px auto;
  display: block;
  border: 4px solid #0077b6;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 20px;
  margin-top: 15px;
  background: #0077b6;
  color: white;
  text-decoration: none;
  border-radius: 8px;
  transition: 0.3s;
}

.btn:hover {
  background: #023e8a;
}

/* Footer */
footer {
  text-align: center;
  padding: 15px;
  background: #0077b6;
  color: white;
  margin-top: 40px;
}