:root {
  color-scheme: dark;
  font-family: system-ui, sans-serif;
  color: #e6eef2;
  background: #111a21;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
main {
  max-width: 1120px;
  margin: auto;
  padding: 28px 20px;
}
a {
  color: #a9e7ce;
}
header {
  margin: 30px 0;
}
h1 {
  font-size: clamp(2rem, 5vw, 3.6rem);
  letter-spacing: -0.04em;
  margin: 0.2em 0;
}
h2 {
  font-size: 1.1rem;
}
p {
  line-height: 1.55;
}
.eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.13em;
  color: #a9e7ce;
}
.panel {
  background: #1a2832;
  border: 1px solid #344750;
  border-radius: 16px;
  padding: 24px;
  margin: 18px 0;
}
.gate {
  max-width: 540px;
}
.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 10px;
}
label {
  display: block;
  font-weight: 600;
}
button,
input,
select {
  font: inherit;
  border: 1px solid #4a6666;
  border-radius: 8px;
  padding: 11px 14px;
  min-height: 44px;
  background: #233b43;
  color: #edf5f2;
}
input {
  display: block;
  width: 100%;
  margin: 10px 0 16px;
}
button {
  cursor: pointer;
}
button:hover {
  background: #34565b;
}
button:disabled {
  opacity: 0.5;
  cursor: default;
}
button:focus-visible,
input:focus-visible,
select:focus-visible,
a:focus-visible {
  outline: 3px solid #b8f0d6;
  outline-offset: 3px;
}
#viewport {
  background: #000;
  border-radius: 8px;
  overflow: hidden;
  max-width: 840px;
  margin: 18px auto;
}
iframe {
  display: block;
  width: 100%;
  aspect-ratio: 8/7;
  border: 0;
}
.controls {
  display: grid;
  grid-template-columns: 1fr 230px;
  gap: 24px;
}
.pad {
  display: grid;
  grid-template-columns: repeat(3, 54px);
  gap: 7px;
  justify-content: center;
  margin-top: 15px;
}
.pad button {
  touch-action: none;
}
.pad [data-dir="up"] {
  grid-column: 2;
}
.pad [data-dir="left"] {
  grid-column: 1;
}
.muted {
  color: #adbdc5;
  font-size: 0.9rem;
}
footer,
.invite {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.invite {
  padding: 15px 0;
  border-top: 1px solid #344750;
}
.new-code {
  font-family: ui-monospace, monospace;
}
.attribution {
  margin-top: 28px;
}
.back {
  text-decoration: none;
}
@media (max-width: 600px) {
  main {
    padding: 18px 12px;
  }
  .panel {
    padding: 16px;
  }
  .controls {
    grid-template-columns: 1fr;
  }
  footer {
    align-items: start;
    flex-direction: column;
  }
  .toolbar button {
    flex: 1 0 40%;
  }
}