.game-page {
  min-height: 100vh;
  padding: clamp(1.25rem, 4vw, 2.5rem);
}

.back-link {
  position: fixed;
  top: 1.5rem;
  left: 1.5rem;
  z-index: 2;
  color: var(--muted);
  font-size: 0.72rem;
  text-decoration: none;
  transition: color 150ms ease, transform 150ms ease;
}

.back-link:hover,
.back-link:focus-visible {
  color: var(--green);
  transform: translateX(-0.2rem);
}

.game-shell {
  width: min(57rem, 100%);
  margin: 0 auto;
  padding: clamp(4.5rem, 9vh, 6rem) 0 2rem;
}

.game-header {
  display: flex;
  gap: 2rem;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 2.4rem;
}

.game-header .kicker {
  margin-bottom: 0.8rem;
}

.game-header h1 {
  max-width: none;
  font-size: clamp(2.5rem, 7vw, 4.8rem);
  letter-spacing: -0.08em;
}

.game-premise {
  max-width: 32ch;
  margin: 0 0 0.35rem;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.7;
  text-align: right;
}

.telemetry {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--muted);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.telemetry p {
  margin: 0;
  display: flex;
  gap: 0.55rem;
  align-items: baseline;
}

.telemetry strong {
  color: var(--ink);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.03em;
}

.telemetry b {
  color: var(--green);
  font-weight: 500;
}

.screen-wrap {
  position: relative;
}

#game-canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 700 / 460;
  border: 1px solid #1d251f;
  background: #020302;
  touch-action: none;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
  margin-top: 1rem;
}

.move-controls,
.run-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

button {
  min-height: 2.75rem;
  padding: 0.65rem 0.9rem;
  border: 1px solid #29322c;
  color: var(--muted);
  background: transparent;
  font: 600 0.64rem/1 var(--font-mono);
  letter-spacing: 0.045em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color 130ms ease, border-color 130ms ease, background 130ms ease;
}

button:hover {
  color: var(--ink);
  border-color: var(--muted);
}

button:active {
  color: var(--black);
  background: var(--green);
}

.primary-control {
  color: var(--green);
  border-color: rgba(101, 245, 139, 0.5);
}

button[aria-pressed="true"] {
  color: var(--green);
  border-color: var(--green);
  background: var(--green-soft);
}

.instructions {
  max-width: 46rem;
  margin-top: 2.2rem;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.65;
}

.instructions h2 {
  margin: 0 0 0.65rem;
  color: var(--quiet);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.instructions p {
  margin: 0.35rem 0;
}

.keys {
  color: var(--quiet);
}

kbd {
  display: inline-block;
  min-width: 1.55rem;
  margin: 0 0.12rem;
  padding: 0.13rem 0.3rem;
  border: 1px solid #29322c;
  color: var(--muted);
  font: inherit;
  line-height: 1.2;
  text-align: center;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 44rem) {
  .game-page {
    padding: 1rem;
  }

  .back-link {
    position: absolute;
    top: 1.15rem;
    left: 1rem;
  }

  .game-shell {
    padding-top: 4.3rem;
  }

  .game-header {
    display: block;
    margin-bottom: 1.8rem;
  }

  .game-premise {
    margin-top: 1rem;
    text-align: left;
  }

  .telemetry {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.4rem 1rem;
  }

  .controls,
  .move-controls,
  .run-controls {
    width: 100%;
  }

  .move-controls,
  .run-controls {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .run-controls .primary-control {
    grid-column: 1 / -1;
  }

  button {
    width: 100%;
  }
}