body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #e0f7fa, #ffffff);
  color: #333;
  min-height: 100vh;
}

header {
  background: #0288d1;
  color: white;
  padding: 1.5rem;
  text-align: center;
  font-size: 2rem;
  font-weight: bold;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

nav {
  background: #b3e5fc;
  padding: 1rem;
  text-align: center;
  box-shadow: inset 0 -1px 0 rgba(0,0,0,0.1);
}

nav a {
  margin: 0 1rem;
  text-decoration: none;
  color: #01579b;
  font-weight: bold;
  font-size: 1.1rem;
  transition: color 0.3s;
}

nav a:hover {
  color: #004d40;
}

.container {
  max-width: 400px; /* reduced from 800px */
  background: white;
  margin: 6rem auto;
  padding: 2rem 2.5rem;
  border-radius: 15px;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
  text-align: center;
}


h2 {
  color: #0277bd;
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

p, li {
  font-size: 1.1rem;
  line-height: 1.6;
}

input, button {
  padding: 1rem;
  margin: 1rem 0;
  width: 100%;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 8px;
  box-sizing: border-box;
}

button {
  background: #0288d1;
  color: white;
  border: none;
  cursor: pointer;
  font-weight: bold;
  transition: background 0.3s;
}

button:hover {
  background: #0277bd;
}

ul {
  text-align: left;
  margin-top: 1rem;
}

ol {
  text-align: left;
  padding-left: 1.5rem;
  font-size: 1.1rem;
  margin-top: 1rem;
}

strong {
  color: #004d40;
}