:root {
  color-scheme: dark;
  --ink: #f6f1df;
  --muted: #9da78d;
  --panel: #20262a;
  --edge: #89966b;
  --accent: #f2c55b;
  --danger: #d1664e;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(135deg, #151c20 0%, #26302d 48%, #12171b 100%);
  background-size: 8px 8px, 8px 8px, auto;
  color: var(--ink);
  font-family: "Courier New", Consolas, monospace;
}

body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: clamp(10px, 2.2vw, 28px);
}

.shell {
  width: min(1320px, 100%);
  display: grid;
  grid-template-columns: minmax(360px, 720px) minmax(220px, 300px);
  gap: clamp(14px, 2vw, 28px);
  align-items: start;
  justify-content: center;
}

.game-panel {
  position: relative;
  width: min(100%, 720px, calc((100vh - 56px) * 0.6667));
  min-width: min(100%, 360px);
  aspect-ratio: 2 / 3;
  border: 4px solid #12181b;
  outline: 4px solid var(--edge);
  background: #11191d;
  box-shadow:
    8px 8px 0 #0a0e10,
    16px 16px 0 rgba(0, 0, 0, 0.28);
  overflow: hidden;
}

canvas {
  width: 100%;
  height: 100%;
  display: block;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  touch-action: none;
  cursor: crosshair;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 18px;
  background:
    linear-gradient(rgba(18, 22, 22, 0.28), rgba(18, 22, 22, 0.72)),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.04) 0 2px, transparent 2px 6px);
  text-align: center;
  padding: 18px;
}

.overlay.hidden {
  display: none;
}

.title {
  font-family: "Courier New", Consolas, monospace;
  width: min(440px, 92vw);
  font-size: clamp(2.35rem, 9vw, 4.9rem);
  line-height: 0.88;
  text-transform: uppercase;
  letter-spacing: 0;
  color: #f6f1df;
  font-weight: 900;
  padding: 8px 4px 12px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.14) 0 8px, transparent 8px 16px),
    linear-gradient(rgba(12, 17, 20, 0.34), rgba(12, 17, 20, 0.08));
  box-shadow:
    inset 0 -8px 0 rgba(12, 17, 20, 0.35),
    0 6px 0 rgba(13, 17, 19, 0.72);
  text-shadow:
    4px 0 0 #43515c,
    -4px 0 0 #1b252b,
    0 4px 0 #26343b,
    0 8px 0 #0d1113,
    8px 8px 0 #0d1113;
  -webkit-font-smoothing: none;
  font-smooth: never;
  image-rendering: pixelated;
}

.pixel-title {
  display: grid;
  justify-items: center;
  gap: 14px;
}

.pixel-line {
  display: grid;
  gap: 3px;
  filter: drop-shadow(5px 5px 0 #0d1113);
}

.pixel-row {
  display: flex;
  gap: 2px;
  height: 7px;
}

.pixel {
  width: 7px;
  height: 7px;
  display: block;
}

.pixel.on {
  background: #f6f1df;
  box-shadow:
    inset -2px -2px 0 #b8c1be,
    2px 2px 0 #27323a;
}

@media (max-width: 560px) {
  .pixel-row {
    gap: 2px;
    height: 8px;
  }

  .pixel {
    width: 5px;
    height: 5px;
  }
}

button {
  min-width: 72px;
  min-height: 44px;
  border: 0;
  outline: 3px solid #2b2516;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.18) 0 4px, transparent 4px),
    linear-gradient(#f2c55b 0 65%, #b88432 65% 100%);
  color: #201a0f;
  font-weight: 800;
  cursor: pointer;
  font-family: inherit;
  text-transform: uppercase;
  box-shadow: 4px 4px 0 #0d1113;
}

button:active {
  transform: translateY(1px);
}

button:disabled {
  cursor: default;
  filter: grayscale(0.8);
  opacity: 0.58;
}

.hud {
  min-height: 380px;
  padding: 16px;
  border: 4px solid #12181b;
  outline: 3px solid var(--edge);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    rgba(32, 38, 42, 0.95);
  background-size: 8px 8px, 8px 8px, auto;
  box-shadow: 6px 6px 0 #0d1113;
}

@media (min-width: 1100px) and (min-height: 860px) {
  .shell {
    grid-template-columns: minmax(520px, 760px) minmax(250px, 320px);
  }

  .game-panel {
    width: min(100%, 760px, calc((100vh - 64px) * 0.6667));
  }

  .hud {
    font-size: 1.05rem;
  }
}

.brand {
  margin-bottom: 18px;
  font-family: inherit;
  font-size: 1.35rem;
  line-height: 1;
  color: var(--ink);
  text-shadow: 2px 2px 0 #0d1113;
}

.stat {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 10px 8px;
  margin-top: 8px;
  border: 2px solid rgba(137, 150, 107, 0.5);
  background: rgba(13, 17, 19, 0.42);
}

.stat span,
.controls {
  color: var(--muted);
}

.stat strong {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.difficulty-panel {
  display: grid;
  gap: 8px;
  padding: 10px 8px;
  margin-top: 10px;
  border: 2px solid rgba(137, 150, 107, 0.5);
  background: rgba(13, 17, 19, 0.42);
}

.difficulty-panel > span {
  color: var(--muted);
}

.difficulty-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 7px;
}

.difficulty-buttons button {
  min-width: 0;
  min-height: 36px;
  padding: 5px 4px;
  font-size: 0.78rem;
  outline-width: 2px;
  box-shadow: 3px 3px 0 #0d1113;
}

.difficulty-buttons button.active {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.2) 0 4px, transparent 4px),
    linear-gradient(#d7f07a 0 65%, #768d38 65% 100%);
  color: #11180d;
}

.controls {
  display: grid;
  gap: 7px;
  margin-top: 22px;
  padding: 10px 8px;
  border: 2px solid rgba(137, 150, 107, 0.36);
  background: rgba(13, 17, 19, 0.34);
  font-size: 0.82rem;
  line-height: 1.35;
}

.leaderboard {
  grid-column: 1 / -1;
  width: min(100%, 1040px);
  justify-self: center;
  padding: 14px;
  border: 4px solid #12181b;
  outline: 3px solid var(--edge);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    rgba(32, 38, 42, 0.96);
  background-size: 8px 8px, 8px 8px, auto;
  box-shadow: 6px 6px 0 #0d1113;
}

.leaderboard-title {
  margin-bottom: 10px;
  color: var(--accent);
  font-weight: 900;
  text-shadow: 2px 2px 0 #0d1113;
}

.score-form {
  display: grid;
  grid-template-columns: auto minmax(160px, 1fr) auto minmax(130px, auto);
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
  padding: 10px;
  border: 3px solid rgba(137, 150, 107, 0.62);
  background: rgba(13, 17, 19, 0.48);
}

.score-form.hidden {
  display: none;
}

.score-form label,
#scoreMessage {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
}

.score-form input {
  min-height: 38px;
  border: 3px solid rgba(137, 150, 107, 0.75);
  outline: 0;
  background: #12191c;
  color: var(--ink);
  font: 800 1rem "Courier New", Consolas, monospace;
  padding: 6px 8px;
  box-shadow: inset 3px 3px 0 rgba(0, 0, 0, 0.38);
}

.score-form input:focus {
  border-color: var(--accent);
}

.score-form input:disabled {
  color: var(--muted);
  opacity: 0.75;
}

.score-form button {
  min-height: 38px;
}

#leaderboardSelect {
  width: 100%;
  min-height: 230px;
  border: 3px solid rgba(137, 150, 107, 0.75);
  outline: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    rgba(13, 17, 19, 0.72);
  background-size: 8px 8px, auto;
  color: var(--ink);
  font: 800 1rem/1.55 "Courier New", Consolas, monospace;
  padding: 8px;
  box-shadow: inset 4px 4px 0 rgba(0, 0, 0, 0.32);
}

#leaderboardSelect option {
  padding: 4px 6px;
  background: #161d20;
  color: var(--ink);
}

#leaderboardSelect option:checked {
  background: #f2c55b;
  color: #201a0f;
}

.touch-controls {
  display: none;
}

@media (max-width: 980px) {
  body {
    place-items: start center;
  }

  .shell {
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .game-panel {
    width: min(100%, 720px);
    min-width: 0;
  }

  .hud {
    width: min(100%, 720px);
    min-height: 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
  }

  .brand,
  .difficulty-panel,
  .controls {
    grid-column: 1 / -1;
  }

  .leaderboard {
    width: min(100%, 720px);
  }

  .score-form {
    grid-template-columns: 1fr auto;
  }

  .score-form label,
  #scoreMessage {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  body {
    padding: 10px;
    place-items: start center;
  }

  .shell {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .game-panel {
    max-height: calc(100vh - 170px);
    width: min(100%, 620px, calc((100vh - 170px) * 0.6667));
    min-width: 0;
    justify-self: center;
  }

  .hud {
    min-height: 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    padding: 10px;
  }

  .brand,
  .controls {
    display: none;
  }

  .difficulty-panel {
    grid-column: 1 / -1;
    margin-top: 0;
  }

  .stat {
    display: grid;
    justify-items: center;
    gap: 2px;
    padding: 4px;
    border: 2px solid rgba(137, 150, 107, 0.5);
  }

  .stat span {
    font-size: 0.72rem;
  }

  .touch-controls {
    width: min(100%, 620px);
    justify-self: center;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
  }

  .touch-controls button {
    border-color: rgba(246, 241, 223, 0.34);
    background: rgba(216, 178, 86, 0.82);
  }
}