* {
  box-sizing: border-box;
}

@font-face {
  font-family: "VT323";
  src: url("./fonts/VT323-Regular.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
}

:root {
  --background: #020502;
  --surface: #050b05;
  --surface-strong: #081208;
  --green: #a5ff66;
  --green-dim: #68a83e;
  --green-border: #28451e;
  --green-glow: rgba(128, 255, 92, 0.34);
}

body {
  margin: 0;
  font-family: "VT323", monospace;
  font-size: 22px;
  line-height: 1.5;
  color: var(--green);
  background: var(--background);
}

header,
main {
  max-width: 920px;
  margin: 0 auto;
  padding: 24px;
}

header {
  padding-top: 40px;
}

h1 {
  margin: 0 0 8px;
  font-size: 42px;
  font-weight: 400;
  color: var(--green);
  text-shadow: 0 0 14px var(--green-glow);
}

h2 {
  margin: 32px 0 12px;
  font-size: 30px;
  font-weight: 400;
  color: var(--green);
  text-shadow: 0 0 12px var(--green-glow);
}

p {
  margin: 0 0 14px;
}

ul {
  margin: 0 0 14px 20px;
  padding: 0;
}

li {
  margin-bottom: 8px;
}

a {
  color: var(--green);
  text-shadow: 0 0 8px var(--green-glow);
}

.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin: 0 0 12px;
}

.thumbnail-button {
  display: block;
  width: 100%;
  padding: 0;
  border: 1px solid var(--green-border);
  background: var(--surface);
  cursor: pointer;
}

.thumbnail-button:focus {
  outline: 2px solid var(--green);
  outline-offset: 3px;
}

.thumbnail-button img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.image-modal {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  padding: 24px;
}

.image-modal[hidden] {
  display: none;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(0, 0, 0, 0.86);
  cursor: pointer;
}

.modal-content {
  position: relative;
  z-index: 1;
  max-width: min(1100px, 96vw);
  max-height: 92vh;
}

.modal-content img {
  display: block;
  max-width: 100%;
  max-height: 86vh;
  border: 1px solid var(--green-border);
  background: var(--surface);
}

.modal-close {
  display: block;
  margin: 0 0 8px auto;
  padding: 6px 10px;
  color: var(--green);
  border: 1px solid var(--green-border);
  background: var(--surface-strong);
  font: inherit;
  cursor: pointer;
  text-shadow: 0 0 8px var(--green-glow);
}

.panel,
pre {
  border: 1px solid var(--green-border);
  background: var(--surface);
}

.panel {
  padding: 16px;
  margin: 16px 0;
}

.demo-window {
  max-width: 420px;
  border: 1px solid var(--green-border);
  background: var(--surface);
}

.demo-title {
  padding: 8px 10px;
  border-bottom: 1px solid var(--green-border);
  color: var(--green);
  background: var(--surface-strong);
  font-weight: 400;
  text-shadow: 0 0 10px var(--green-glow);
}

.demo-body {
  padding: 12px;
}

.demo-select,
.demo-button {
  display: inline-block;
  min-height: 34px;
  padding: 6px 10px;
  color: var(--green);
  border: 1px solid var(--green-border);
  background: var(--surface-strong);
}

.demo-select {
  width: 100%;
  margin: 6px 0 10px;
}

.demo-button {
  min-width: 74px;
  margin-right: 6px;
  text-align: center;
  text-shadow: 0 0 8px var(--green-glow);
}

pre {
  overflow: auto;
  padding: 12px;
  color: var(--green);
  text-shadow: 0 0 6px rgba(128, 255, 92, 0.2);
}

code {
  font-family: "VT323", monospace;
  color: var(--green);
}

footer {
  max-width: 920px;
  margin: 24px auto 0;
  padding: 24px;
  color: var(--green-dim);
}