/* Basic Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', sans-serif;
  line-height: 1.6;
  background-color: #f9fafb;
  color: #333;
  padding: 1.5rem;
}

/* Header */
header {
  text-align: center;
  padding: 2rem 0 1rem;
  background: linear-gradient(135deg, #42a5f5, #478ed1);
  color: white;
  border-radius: 8px;
  margin-bottom: 2rem;
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

/* Main Content */
main {
  max-width: 800px;
  margin: auto;
}

section {
  margin-bottom: 2rem;
}

h2 {
  margin-bottom: 0.75rem;
  color: #2c3e50;
}

ul {
  list-style: none;
  padding-left: 1rem;
}

ul li::before {
  content: "•";
  color: #42a5f5;
  font-weight: bold;
  display: inline-block;
  width: 1em;
  margin-left: -1em;
}

/* Buttons */
.button {
  display: inline-block;
  margin: 0.5rem;
  padding: 0.75rem 1.5rem;
  background-color: #42a5f5;
  color: white;
  border-radius: 5px;
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.button:hover {
  background-color: #1e88e5;
}

.button.secondary {
  background-color: #607d8b;
}

.button.secondary:hover {
  background-color: #455a64;
}

/* Footer */
footer {
  text-align: center;
  margin-top: 3rem;
  font-size: 0.9rem;
  color: #777;
}

/* Responsive */
@media (max-width: 600px) {
  header h1 {
    font-size: 2rem;
  }

  .button {
    width: 100%;
    text-align: center;
  }
}