/* === Global Styles === */

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #111827;
  background: radial-gradient(
    circle at top,
    #1a243c 0,
    #0d172c 40%,
    #000000 100%
  );
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* === Page layout === */

.container {
  max-width: 960px;
  width: 100%;
  color: #ffffff;
}

header {
  text-align: center;
  margin-bottom: 2.5rem;
}

header h1 {
  margin: 0 0 0.5rem 0;
  font-size: 2.4rem;
}

header p {
  margin: 0;
  color: #ffffff;
  opacity: 0.6;
  font-size: 1rem;
}

footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  text-align: center;
  padding: 1rem;
  color: #ffffff;
  opacity: 0.5;
  font-size: 0.875rem;
}

footer p {
  margin: 0;
}

footer a {
  color: #ffffff;
  text-decoration: none;
  opacity: 0.7;
  transition: opacity 0.2s;
}

footer a:hover {
  opacity: 1;
}