body {
  font-family: Arial, sans-serif;
      background: linear-gradient(135deg, #cfdef3 0%, #cfdef3 100%);
      margin: 0;
      padding: 0;
      color: #333;
}

.container {
  max-width: 900px;
  margin: 40px auto;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: 30px;
}

header {
  text-align: center;
  margin-bottom: 40px;
}

header img {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid #111;
  transition: transform 0.3s ease;
}

header img:hover {
  transform: scale(1.05);
}

header h1 {
  margin: 20px 0 10px;
  font-size: 2.4em;
}

header p {
  margin: 0;
  color: #666;
  font-size: 1.1em;
}

.prototype-banner {
  background-color: #fff3cd;
  color: #856404;
  padding: 10px;
  border: 1px solid #ffeeba;
  border-radius: 5px;
  margin-bottom: 20px;
  font-weight: bold;
}

section {
  margin-bottom: 40px;
}

section h2 {
  margin-bottom: 15px;
  border-bottom: 2px solid #111;
  padding-bottom: 5px;
  color: #111;
  font-size: 1.5em;
}

ul {
  list-style-type: disc;
  padding-left: 20px;
}

.projects a {
  color: #111;
  text-decoration: none;
  transition: color 0.2s ease;
}

.projects a:hover {
  color: #005582;
  text-decoration: underline;
}

footer {
  text-align: center;
  font-size: 0.9em;
  color: #777;
  margin-top: 30px;
  border-top: 1px solid #ddd;
  padding-top: 15px;
}

footer a {
  color: #111;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

@media (max-width: 600px) {
  .container {
    padding: 20px;
  }

  header img {
    width: 140px;
    height: 140px;
  }

  header h1 {
    font-size: 1.8em;
  }
}