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

body {
  background-color: #0d1117;
  color: #c9d1d9;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.container {
  width: 100%;
  max-width: 550px;
  background-color: #161b22;
  border: 1px solid #30363d;
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

header {
  text-align: center;
  margin-bottom: 25px;
}

header h1 {
  color: #58a6ff;
  font-size: 1.8rem;
  margin-bottom: 5px;
}

header p {
  color: #8b949e;
  font-size: 0.95rem;
}

.search-box {
  display: flex;
  gap: 10px;
  margin-bottom: 25px;
}

.search-box input {
  flex: 1;
  padding: 12px 15px;
  background-color: #0d1117;
  border: 1px solid #30363d;
  border-radius: 8px;
  color: #fff;
  font-size: 1rem;
  outline: none;
}

.search-box input:focus {
  border-color: #58a6ff;
}

.search-box button {
  padding: 12px 20px;
  background-color: #238636;
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.2s;
}

.search-box button:hover {
  background-color: #2ea043;
}

.card {
  background-color: #0d1117;
  border: 1px solid #30363d;
  border-radius: 10px;
  padding: 20px;
}

.profile-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 20px;
}

.profile-header img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 2px solid #58a6ff;
}

.user-info h2 {
  color: #f0f6fc;
  font-size: 1.3rem;
}

.user-info a {
  color: #58a6ff;
  text-decoration: none;
  font-size: 0.9rem;
}

.user-info p {
  margin-top: 5px;
  font-size: 0.9rem;
  color: #8b949e;
}

.stats {
  display: flex;
  justify-content: space-around;
  background-color: #161b22;
  padding: 15px;
  border-radius: 8px;
  margin-bottom: 20px;
  text-align: center;
}

.stat-item span {
  display: block;
  font-size: 0.8rem;
  color: #8b949e;
}

.stat-item strong {
  font-size: 1.2rem;
  color: #f0f6fc;
}

.details p {
  font-size: 0.9rem;
  color: #8b949e;
  margin-top: 8px;
}

.details i {
  width: 20px;
  color: #58a6ff;
}

.hidden {
  display: none !important;
}

.error {
  color: #f85149;
  text-align: center;
  margin-top: 15px;
}