body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #f3f4f6;
  color: #333;
  display: flex;
  justify-content: center;
  padding: 50px 20px;
}

.container {
  width: 100%;
  max-width: 500px;
  background: white;
  padding: 30px;
  border-radius: 20px;
  box-shadow: 0 0 30px rgba(0,0,0,0.1);
  text-align: center;
}

h1 {
  margin-bottom: 20px;
  font-size: 2em;
}

.search-box {
  display: flex;
  gap: 10px;
  margin-bottom: 30px;
}

input {
  flex: 1;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 10px;
  font-size: 1em;
}

button {
  padding: 10px 20px;
  background: #3b82f6;
  color: white;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-weight: bold;
  transition: background 0.2s;
}

button:hover {
  background: #2563eb;
}

.card {
  text-align: center;
}

.avatar {
  width: 100px;
  border-radius: 50%;
  margin-bottom: 10px;
}

h2 {
  margin: 10px 0 5px;
}

h2 span {
  font-size: 0.8em;
  color: #555;
}

ul {
  list-style: none;
  padding: 0;
  text-align: left;
  margin: 15px 0;
}

ul li {
  margin: 5px 0;
}

.profile-btn {
  display: inline-block;
  margin-top: 15px;
  padding: 10px 20px;
  background: #10b981;
  color: white;
  border-radius: 10px;
  text-decoration: none;
  transition: background 0.2s;
}

.profile-btn:hover {
  background: #059669;
}

.error {
  color: red;
  font-weight: bold;
}