body {
  margin: 0;
  background-color: #000;
  color: #FFD700;
  font-family: Helvetica, Arial, sans-serif;
  line-height: 1.7;
  text-align: center;
}

a {
  color: #FFD700;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
}

a:hover {
  color: #00A0A0;
  text-decoration: underline;
}

header {
  background-color: #000;
  padding: 20px;
}

nav a {
  margin: 0 10px;
  color: #FFD700;
}

h1 {
  margin-top: 30px;
  margin-bottom: 20px;
}

h2 {
  margin-top: 40px;
  margin-bottom: 20px;
  color: #00A0A0;
}

h3 {
  margin-top: 30px;
  margin-bottom: 20px;
}

main {
  background-color: #1A1A1A;
  padding: 40px;
  border-radius: 8px;
  margin: 30px auto;
  max-width: 1000px;
}

img {
  max-width: 100%;
  height: auto;
  box-shadow: 0 4px 12px rgba(0, 160, 160, 0.3);
}

.about-img,
.center-robot img,
main img {
  max-width: 200px;
  width: 100%;
  margin: 30px auto;
  display: block;
}

.agent-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: 20px; /* tightened spacing */
  margin-bottom: 20px; /* added for consistency */
}

.agent-grid img {
  max-width: 150px;
  height: auto;
  flex: 0 1 auto;
}

.agent-grid img:hover {
  transform: scale(1.05);
}

.agent-block {
  border-top: 2px solid #00A0A0;
  padding-top: 20px;
  margin-top: 40px;
}

.examples {
  background-color: #000;
  padding: 15px;
  margin-top: 10px;
  border-radius: 5px;
}

a.button {
  display: inline-block;
  margin-top: 20px;
  padding: 10px 20px;
  border: 2px solid #00A0A0;
  color: #FFD700;
  text-decoration: none;
  transition: background-color 0.2s, color 0.2s;
}

a.button:hover {
  background-color: #00A0A0;
  color: #000;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 40px;
  text-align: left;
}

.learning-header {
  color: #00A0A0;
  margin-top: 60px;
  margin-bottom: 20px;
}

a, img, .button {
  transition: all 0.3s ease;
}

@media (max-width: 600px) {
  body {
    font-size: 18px;
  }
  nav a {
    display: block;
    margin: 10px 0;
  }
  .agent-grid img {
    max-width: 120px;
  }
}