* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f1f4f9;
  color: #333;
  line-height: 1.6;
  padding: 20px;
}
.container {
  max-width: 800px;
  margin: auto;
  background: #fff;
  padding: 40px 30px;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(0,0,0,0.05);
}
h1, h2, h3 {
  color: #0b7dda;
  margin-bottom: 20px;
}
p {
  margin-bottom: 15px;
  font-size: 16px;
}
a {
  color: #0b7dda;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
button {
  background: #0b7dda;
  color: white;
  border: none;
  padding: 12px 25px;
  font-size: 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s ease;
}
button:hover {
  background: #095bb5;
}
footer {
  margin-top: 50px;
  text-align: center;
  font-size: 14px;
  color: #666;
}
footer nav a {
  margin: 0 10px;
}
.suggestion-box {
  margin-top: 30px;
  padding: 20px;
  background: #f0f8ff;
  border: 1px solid #dbeaff;
  border-radius: 8px;
}
.ads-placeholder {
  margin-top: 30px;
  padding: 20px;
  border: 2px dashed #bbb;
  text-align: center;
  font-style: italic;
  color: #888;
  background: #fafafa;
}
@media (max-width: 600px) {
  .container {
    padding: 20px;
  }
  h1 {
    font-size: 24px;
  }
  button {
    width: 100%;
  }
}