body {
  background: linear-gradient(135deg, #24292e 0%, #586069 100%);
  margin: 0;
  font-family: 'Poppins', Arial, sans-serif;
  min-height: 100vh;
}

.container {
  background: rgba(255,255,255,0.10);
  margin: 40px auto;
  max-width: 430px;
  padding: 36px 30px 14px 30px;
  border-radius: 20px;
  box-shadow: 0 8px 32px 0 rgba(31,38,135,0.37);
}

header {
  text-align: center;
}

.avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border: 4px solid #fff;
  margin-bottom: 15px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.2);
}

header h1 {
  color: #fff;
  margin: 0 0 8px 0;
  min-height: 40px;
  letter-spacing: 2px;
  font-weight: 600;
}

.subtitle {
  color: #d1d5da;
  margin-bottom: 12px;
  font-weight: 400;
}

nav a {
  color: #fff;
  background: #2ea44f;
  padding: 8px 13px;
  border-radius: 6px;
  text-decoration: none;
  margin: 0 6px;
  display: inline-block;
  transition: background 0.3s;
  font-size: 15px;
  font-weight: 500;
}
nav a:hover {
  background: #22863a;
}

section {
  margin: 28px 0;
}

h2 {
  color: #2ea44f;
  margin-bottom: 10px;
  font-weight: 600;
}

ul {
  list-style: none;
  padding: 0;
}

li {
  margin-bottom: 16px;
}

a {
  color: #2ea44f;
  text-decoration: none;
}

a:hover, .social-links a:hover {
  text-decoration: underline;
  color: #1b5e20;
}

.social-links {
  margin-top: 10px;
}

.social-links a {
  display: inline-block;
  font-size: 2rem;
  color: #fff;
  margin: 0 10px;
  transition: color 0.2s;
  text-decoration: none;
}

.social-links a:hover {
  color: #2ea44f;
}

footer {
  text-align: center;
  color: #d1d5da;
  font-size: 13px;
  margin-top: 36px;
  letter-spacing: 1px;
}