body {
  background: linear-gradient(135deg, #13547a, #179);
  color: white;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 20px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Center h1 */
h1 {
  text-align: center;
  font-weight: 700;
  margin-bottom: 30px;
  letter-spacing: 1.2px;
}

/* Center the leaderboard list */
#leaderboard-list {
  width: 100%;
  max-width: 600px;
  margin: 0 auto 40px;
  text-align: center;
  background: rgba(255 255 255 / 0.1);
  padding: 15px 25px;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgb(0 0 0 / 0.2);
  overflow-x: auto; /* for smaller screens if needed */
}

/* Navigation styles */
nav ul {
  list-style: none;
  padding: 0;
  text-align: center;
  font-family: inherit;
}

nav ul li {
  display: inline-block;
  margin: 0 15px;
}

nav ul li a {
  color: white;
  text-decoration: none;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}

nav ul li a:hover,
nav ul li a:focus {
  background-color: rgba(255 255 255 / 0.3);
  outline: none;
}

footer {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 600px;   
  padding: 15px 0;
  text-align: center;
  box-sizing: border-box;
  z-index: 1000;      
}

footer p {
  color: white;
  font-family: Arial, sans-serif;
  margin: 0;
}

/* Responsive tweaks */

/* Small phones (max-width: 480px) */
@media (max-width: 480px) {
  body {
    padding: 10px;
  }

  h1 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    letter-spacing: 1px;
  }

  #leaderboard-list {
    max-width: 100%;
    padding: 10px 15px;
    font-size: 0.9rem;
  }

  nav ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  nav ul li {
    display: block;
    margin: 0;
  }

  nav ul li a {
    padding: 5px 8px;
    font-size: 0.9rem;
  }

  footer {
    max-width: 100%;
    padding: 10px 0;
    font-size: 0.9rem;
  }
}

/* Tablets and small desktops (max-width: 768px) */
@media (max-width: 768px) {
  body {
    padding: 15px;
  }

  h1 {
    font-size: 2rem;
    margin-bottom: 25px;
  }

  #leaderboard-list {
    max-width: 90%;
    padding: 12px 20px;
    font-size: 1rem;
  }

  nav ul li {
    margin: 0 12px;
  }

  nav ul li a {
    padding: 6px 10px;
    font-size: 1rem;
  }

  footer {
    max-width: 90%;
    padding: 12px 0;
    font-size: 1rem;
  }
}

/* Larger desktops */
@media (min-width: 1200px) {
  h1 {
    font-size: 2.5rem;
  }

  #leaderboard-list {
    font-size: 1.1rem;
  }

  nav ul li a {
    font-size: 1.1rem;
    padding: 8px 14px;
  }

  footer {
    font-size: 1.1rem;
    padding: 15px 0;
  }
}