nav {
  display: flex;
  justify-content: center;
  margin: 20px 0;
  gap: 0;
}

nav a {
  display: inline-block;
  background-color: #000000;
  color: #39ff14;
  text-decoration: none;
  padding: 12px 18px;
  border: 1px solid #39ff14;
  border-radius: 6px;
  font-family: "Courier New", Courier, monospace;
}

nav a:hover {
  background-color: #39ff14;
  color: #000000;
}

body.home-page {
  font-family: "Courier New", Courier, monospace;
  margin: 10px;
  background: linear-gradient(to bottom, #0a0a0a, #001400);
  color: #39ff14;
}

header {
  text-align: center;
  padding: 30px 20px;
  background-color: #0a0a0a;
  color: #39ff14;
}

header h1 {
  margin-bottom: 10px;
}

.site-title {
  display: block;
  font-size: 2em;
  font-weight: bold;
  margin-top: 0.67em;
  margin-bottom: 10px;

}

header p {
  margin: 0;
  font-size: 15px;
}

.home-section {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 90%;
  margin: 40px auto;
  gap: 30px;
  padding: 25px;
  background-color: #000000;
  border: 1px solid #014901;
  border-radius: 10px;
}

.img-box, 
.text-box {
  width: 50%;
}

.img-box img {
  width: 100%;
  min-width: 0px;
  max-width: 500px;
  height: auto;
  display: block;
  margin: 0 auto;
  border: solid 10px #014901;
}

figure {
  text-align: center;
}

figcaption {
  display: inline-block;
  padding: 6px 10px;
  border: 1px solid #014901;
  font-family: arial, sans-serif;
  font-size: 12px;
  margin-top: 8px;
  color: #90ee90;
}

.text-box h2 {
  margin-top: 0;
  font-size: 30px;
  text-align: center;
  color: #39ff14;
}

.text-box p {
  font-size: 20px;
  line-height: 1.6;
  color: #90ee90;
}

.bottom-section {
  width: 90%;
  max-width: 1200px;
  margin: 40px auto;
  text-align: center;
  padding: 25px;
  background-color: #000000;
  border: 1px solid #014901;
  border-radius: 10px;
}

.bottom-section h2 {
  margin-top: 0;
  font-size: 30px;
  text-align: center;
  color: #39ff14;
}

.bottom-section p {
  font-size: 20px;
  line-height: 1.6;
  color: #90ee90;
  max-width: 900px;
  margin: 0 auto;
}

a {
  color: #39ff14;
}

a:hover {
  color: #90ee90;
}

.parts-section {
  width: 90%;
  max-width: 1300px;
  margin: 40px auto;
  padding: 25px;
  background-color: #000000;
  border: 1px solid #014901;
  border-radius: 10px;
}

.parts-section h1 {
  margin-top: 0;
  margin-bottom: 30px;
  font-size: 40px;
  color: #39ff14;
}

.parts-section h2 {
  text-align: center;
  margin-top: 50px;
  margin-bottom: 15px;
}

.parts-section h3 {
  margin-top: 20px;
  margin-bottom: 10px;
  font-size: 24px;
  color: #39ff14;
}

.parts-section p {
  font-size: 20px;
  line-height: 1.6;
  color: #90ee90;
  margin-bottom: 50px;
}

.parts-section ul {
  margin-top: 20px;
  margin-bottom: 20px;
  padding-left: 30px;
}

.parts-section li {
  margin-bottom: 20px;
  color: #90ee90;
}

.part-row,
.build-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  column-gap: 20px;
  margin-bottom: 50px;
}

.part-row > h2,
.build-row > h2 {
  width: 100%;
  margin-top: 0;
}

.part-text,
.build-text {
  width: 55%;
}

.part-img {
  width: 35%;
  text-align: center;
}

.part-img img {
  width: 100%;
  max-width: 300px;
  height: auto;
  display: block;
  margin: 0 auto;
  border: 1px solid #014901;
  background-color: #000000;
  padding: 8px;

}

.part-vid {
  text-align: center;
  padding-top: 25px;
}

.build-list {
  width: 35%;
  text-align: left;
  padding-bottom: 20px;
}

.build-row {
  align-items: flex-start;
  justify-content: flex-start;
  column-gap: 40px;
  margin-bottom: 100px;
  border: 2px solid #014901;
  border-radius: 5px;
  padding: 20px;
}

.build-row h2 {
  padding-bottom: 20px;
}

.build-list ul {
  margin-top: 0;
  margin-bottom: 0;
  padding-left: 20px;
}

.build-list li {
  margin-bottom: 14px;
  text-align: left;
  font-size: 20px;
}

p.build-cost {
  font-size: 15px;
  margin-top: 10px;
  margin-bottom: 0px;
}

.guide-step {
  text-align: center;
}

iframe {
  display: block;
  margin: 20px auto;
  border: 0;
  padding-bottom: 50px;
}

.end-audio {
  text-align: center;
}

.mp3-label {
  margin-top: 15px;
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.2;
  text-align: center;
  color: #90ee90;
}

.end-audio audio {
  display: block;
  margin: 5px auto 20px auto;
  color-scheme: dark;
}

.top {
  text-align: center;
}

footer {
  text-align: center;
  padding: 20px;
  background-color: #000000;
  color: #90ee90;
  margin-top: 30px;
  border-top: 2px solid #014901;
  font-family: "Courier New", Courier, monospace;
}

footer a {
  color: #39ff14;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

footer div {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

footer p {
  margin: 8px 0;
}

h1,
h2,
h3,
.site-title {
  text-shadow: 0 0 6px #39ff14;
}