body {
  background-color: black;
  color: #00ff00;
  font-family: "Courier New", Courier, monospace;
  margin: 0;
  padding: 20px 20px 100px 20px;
}
small {
  font-size: 0.6em;
}
strong {
  font-size: 1.2em;
}
h1,
h3 {
  text-shadow: 0 0 5px #00ff00, 0 0 10px #00ff00;
}

p {
  font-size: 18px;
}

a {
  color: #00ff00;
  text-decoration: none;
  font-weight: bold;
  display: inline-block;
  margin-top: 20px;
  text-shadow: 0 0 5px #00ff00, 0 0 10px #00ff00;
}

a:hover {
  text-decoration: underline;
}

input[type="text"],
input[type="submit"] {
  background-color: black;
  border: 2px solid #00ff00;
  color: #00ff00;
  font-family: "Courier New", Courier, monospace;
  padding: 8px;
  margin-top: 10px;
}

input[type="submit"] {
  cursor: pointer;
  transition: background-color 0.3s;
}

input[type="submit"]:hover {
  background-color: #003300;
}

#greeting {
  margin-top: 15px;
  font-style: italic;
  animation: flicker 1.5s infinite;
}
#showName {
  text-transform: capitalize;
  font-weight: bold;
}
.play_wrapper {
  display: inline-block;
}
.play-button {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #00ff00;
  font-family: "Courier New", Courier, monospace;
  text-decoration: none;
  font-size: 1.2rem;
  margin-top: 30px;
  transition: text-shadow 0.3s, transform 0.3s;
  text-shadow: 0 0 5px #00ff00, 0 0 10px #00ff00;
}

.play-button:hover {
  text-shadow: 0 0 8px #00ff00, 0 0 15px #00ff00;
}

.play-button img {
  width: 100px;
  transition: transform 0.3s;
}

.play-button:hover img {
  transform: scale(1.1);
}

@keyframes flicker {
  0%,
  19%,
  21%,
  23%,
  25%,
  54%,
  56%,
  100% {
    opacity: 1;
  }
  20%,
  22%,
  24%,
  55% {
    opacity: 0;
  }
}

/* style of order list start */
ol {
  list-style: none; /* Remove default markers */
  counter-reset: item;
  padding-left: 1.5em;
}

ol li {
  counter-increment: item;
  position: relative;
  margin-bottom: 1em;
  padding-left: 50px;
  font-family: "Courier New", monospace;
  font-weight: 700;
}

ol li::before {
  content: counter(item);
  position: absolute;
  left: 0;
  top: 35%;
  background-color: #00ff00;
  color: black;
  padding: 2px 10px;
  border-radius: 4px;
  font-weight: bold;
  box-shadow: 0 0 5px #00ff00, 0 0 10px #00ff00;
  font-size: 24px;
}
ol li:hover {
  animation: flicker 1.5s infinite;
}
/* style of order list end */

/* blockquote style start */
blockquote {
  position: relative;
  padding-left: 20px;
  color: red;
}
blockquote::before {
  content: "";
  width: 5px;
  height: 100%;
  background-color: red;
  left: 0;
  top: 0;
  position: absolute;
}
/* blockquote style end */
.flicking {
  animation: flicker 1.5s infinite;
}
/* game over */
.over {
  text-shadow: 0 0 5px red, 0 0 10px red;
  font-size: 36px;
  font-weight: bold;
  color: red;
  margin-bottom: 50px;
  animation: flicker 1.5s infinite;
}
.img {
  width: 300px;
}
.lession {
  position: relative;
  padding-left: 20px;
  margin-top: 50px;
}
.lession > a {
  color: red;
  text-shadow: 0 0 5px red, 0 0 10px red;
}
.lession::before {
  content: "";
  position: absolute;
  width: 5px;
  height: 100%;
  background-color: #00ff00;
  left: 0;
  top: 0;
}