:root {
  --primary: #c62828; /* Red */
  --text: #333;
  --bg: #fafafa;
  --shadow: 0 4px 12px rgba(0,0,0,0.1);
}

body {
  font-family: "Segoe UI", sans-serif;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  max-width: 900px;
  padding: 2rem;
  margin: auto;
}

h1, h2, h3 {
  color: var(--primary);
}

a {
  color: var(--primary);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

img {
  max-width: 200px;
  border-radius: 50%;
  box-shadow: var(--shadow);
  display: block;
  margin: 1rem auto;
}