.button {
  background-color: #3498ea;
  color: #fff;
  padding: 10px 20px;
  text-align: center;
  font-size: 16px;
  font-weight: bold;
  border: none;
  cursor: pointer;
  display: inline-block;
  text-decoration: none;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  -webkit-box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
  -moz-box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}
.button:hover {
  background-color: rgb(98.21875, 175.4508928571, 238.78125);
}
.button:active {
  background-color: rgb(22.03125, 126.9419642857, 212.96875);
  -webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  -moz-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transform: translateY(2px);
}

/* Secondary Button Style */
.button--secondary {
  background-color: #f1f1f1;
}
.button--secondary:hover {
  background-color: white;
}
.button--secondary:active {
  background-color: rgb(215.5, 215.5, 215.5);
}

/* Disabled Button Style */
.button--disabled {
  background-color: grey;
  cursor: not-allowed;
  opacity: 0.6;
}
.button--disabled:hover, .button--disabled:active {
  background-color: grey;
  box-shadow: none;
  transform: none;
}

/* Large Button Modifier */
.button--large {
  padding: 15px 30px;
  font-size: 18px;
}

/* Small Button Modifier */
.button--small {
  padding: 5px 10px;
  font-size: 14px;
}

/* Navigation Bar */
nav {
  background-color: #d23a3a;
  padding: 30px 0;
}
nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  text-align: center;
}
nav ul li {
  display: inline;
  margin-right: 20px;
}
nav ul li a {
  color: white;
  text-decoration: none;
  font-weight: bold;
  font-size: 22px;
}
nav ul li a:hover {
  text-decoration: underline;
  color: #3498ea;
}

/* Footer */
footer {
  background-color: #f1f1f1;
  padding: 15px;
  text-align: center;
  position: relative;
  bottom: 0;
  width: 100%;
}
footer p {
  margin: 0;
}
footer a {
  color: #333;
  text-decoration: none;
  margin: 0 10px;
}
footer a:hover {
  text-decoration: underline;
  color: #3498ea;
}

/* General Styles */
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  background-color: #f9f9f9;
}

/* Main Section */
main {
  padding: 20px;
  max-width: 800px;
  margin: 0 auto;
  text-align: left;
  background-color: #f9f9f9;
}