/* Reset */
body, h1, h2, p, ul {
  margin: 0;
  padding: 0;
}

/* General */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f4f7fa;
  color: #333;
  line-height: 1.6;
}

header {
  background: #2c3e50;
  color: #fff;
  padding: 15px 20px;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
}

nav a:hover, .active {
  border-bottom: 2px solid #3498db;
}

.hero {
  text-align: center;
  padding: 60px 20px;
}

.hero h1 {
  font-size: 2.5rem;
  color: #2c3e50;
}

.profile-pic {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 4px solid #3498db;
  margin-bottom: 20px;
  object-fit: cover;
  box-shadow: 0px 4px 8px rgba(0,0,0,0.2);
}

.btn {
  display: inline-block;
  margin-top: 20px;
  padding: 10px 20px;
  background: #3498db;
  color: white;
  border-radius: 5px;
  text-decoration: none;
  transition: background 0.3s ease;
}

.btn:hover {
  background: #2980b9;
}

.content {
  padding: 40px;
  max-width: 800px;
  margin: auto;
}

.card {
  background: white;
  padding: 20px;
  margin: 20px 0;
  border-radius: 8px;
  box-shadow: 0px 2px 6px rgba(0,0,0,0.1);
}

footer {
  text-align: center;
  background: #2c3e50;
  color: white;
  padding: 15px 0;
  margin-top: 20px;
}