/* Reset and base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

body {
  background: #ffffff;
  color: #1a1a1a;
  line-height: 1.6;
  font-size: 16px;
}

a {
  color: #0066ff;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Container */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}

/* Header */
header {
  text-align: center;
  margin-bottom: 50px;
}

header h1 {
  font-size: 2.5rem;
  font-weight: 600;
  margin-bottom: 10px;
}

header p {
  font-size: 1.2rem;
  color: #555;
}

/* Buttons */
.button {
  display: inline-block;
  padding: 12px 25px;
  margin: 10px 0;
  background: #0066ff;
  color: #fff;
  border-radius: 6px;
  transition: background 0.3s ease;
}

.button:hover {
  background: #004db3;
}

/* Sections */
section {
  margin-bottom: 50px;
}

section h2 {
  font-size: 2rem;
  margin-bottom: 15px;
  border-bottom: 2px solid #eee;
  padding-bottom: 5px;
}

/* Footer */
footer {
  text-align: center;
  padding: 20px;
  border-top: 1px solid #eee;
  color: #888;
  font-size: 0.9rem;
}

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

  section h2 {
    font-size: 1.5rem;
  }
}