:root {
  color-scheme: dark;
  --bg: #050708;
  --panel: #090d0f;
  --panel-2: #0d1517;
  --line: #173532;
  --line-hot: #00ff88;
  --text: #eafff5;
  --muted: #6d938c;
  --amber: #f4b942;
  --sand: #c8914b;
  --sand-light: #ffd08a;
  --matrix: #00ff88;
  --cyan: #00d9ff;
  --magenta: #ff2f92;
  --danger: #ff4d3d;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  align-items: center;
  background:
    radial-gradient(circle at 80% 8%, rgba(255, 47, 146, 0.12), transparent 26rem),
    radial-gradient(circle at 18% 78%, rgba(0, 217, 255, 0.08), transparent 28rem),
    linear-gradient(135deg, #010302 0%, #03100b 48%, #020303 100%);
  color: var(--text);
  display: flex;
  flex-direction: column;
  font-family: "Cascadia Mono", "Consolas", "SFMono-Regular", monospace;
  justify-content: flex-start;
  min-height: 100%;
  padding: 0 24px 24px;
}

#matrixRain {
  height: 100%;
  inset: 0;
  opacity: 0.62;
  pointer-events: none;
  position: fixed;
  width: 100%;
  z-index: 0;
}

main {
  display: grid;
  gap: 16px;
  max-width: 720px;
  position: relative;
  width: min(100%, 720px);
  z-index: 1;
  margin: 26px auto 0;
}

.shell {
  margin: 0 auto;
  width: min(1180px, calc(100% - 40px));
}

.site-header {
  align-self: stretch;
  flex: 0 0 auto;
  font-family: Arial, Helvetica, sans-serif;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  width: 100vw;
}

.site-header .nav {
  align-items: center;
  display: flex;
  justify-content: space-between;
  min-height: 78px;
  padding: 0;
}

.site-header .brand {
  color: #f5f5f5;
  display: inline-flex;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 15px;
  font-weight: 700;
  line-height: normal;
}

.site-header .nav-links {
  align-items: center;
  display: flex;
  gap: 14px;
}

.site-header .nav-menu {
  padding: 24px 0;
  position: relative;
}

.site-header .nav-link {
  align-items: center;
  border: 1px solid transparent;
  border-radius: 4px;
  color: #a7a7ac;
  display: inline-flex;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  font-weight: 700;
  line-height: normal;
  min-height: 34px;
  padding: 0 13px;
  transform: none;
}

.site-header .nav-menu:hover .nav-link,
.site-header .nav-link:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.28);
  box-shadow: 0 0 34px rgba(120, 140, 255, 0.24);
  color: #f5f5f5;
}

.topbar {
  align-items: center;
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr auto;
  justify-items: stretch;
  position: relative;
  text-align: left;
}

h1 {
  color: var(--text);
  font-size: clamp(2.1rem, 5vw, 4.3rem);
  font-weight: 800;
  letter-spacing: 0;
  line-height: 0.9;
  margin: 0;
  text-shadow:
    0 0 12px rgba(0, 255, 136, 0.34),
    2px 0 0 rgba(0, 217, 255, 0.28),
    -2px 0 0 rgba(255, 47, 146, 0.22);
  text-transform: uppercase;
}

.hud {
  align-self: center;
  display: flex;
  gap: 10px;
  justify-content: end;
}

.hud-item {
  background: rgba(17, 10, 5, 0.72);
  border: 1px solid rgba(244, 185, 66, 0.28);
  box-shadow:
    0 0 18px rgba(244, 185, 66, 0.08),
    inset 0 0 18px rgba(0, 255, 136, 0.035);
  min-width: 92px;
  padding: 8px 12px;
  text-align: center;
}

.hud-item span {
  color: var(--muted);
  display: block;
  font-size: 0.68rem;
  margin-bottom: 3px;
  text-transform: uppercase;
}

.hud-item strong {
  color: var(--sand-light);
  font-size: 1.35rem;
  text-shadow: 0 0 12px rgba(244, 185, 66, 0.42);
}

.game-shell {
  background: rgba(17, 10, 5, 0.9);
  border: 1px solid rgba(244, 185, 66, 0.28);
  border-radius: 2px;
  box-shadow:
    0 0 0 1px rgba(244, 185, 66, 0.08),
    0 28px 90px rgba(0, 0, 0, 0.55),
    0 0 48px rgba(200, 145, 75, 0.12),
    0 0 26px rgba(255, 47, 146, 0.045);
  display: grid;
  gap: 14px;
  padding: 12px;
}

.board-wrap {
  aspect-ratio: 1 / 1;
  background: #1a1008;
  border: 1px solid rgba(244, 185, 66, 0.34);
  border-radius: 2px;
  box-shadow:
    inset 0 0 42px rgba(244, 185, 66, 0.07),
    inset 0 0 130px rgba(0, 0, 0, 0.62);
  overflow: hidden;
  position: relative;
  width: 100%;
}

.board-wrap::before {
  background:
    linear-gradient(rgba(255, 208, 138, 0.035) 50%, transparent 50%),
    radial-gradient(circle at 50% 100%, rgba(244, 185, 66, 0.14), transparent 48%);
  background-size: 100% 5px, auto;
  content: "";
  inset: 0;
  opacity: 0.13;
  pointer-events: none;
  position: absolute;
  z-index: 2;
}

.board-wrap::after {
  border: 1px solid rgba(255, 208, 138, 0.28);
  content: "";
  inset: 10px;
  pointer-events: none;
  position: absolute;
  z-index: 2;
}

canvas {
  display: block;
  height: 100%;
  image-rendering: pixelated;
  width: 100%;
}

.overlay {
  align-items: center;
  background: rgba(3, 6, 6, 0.78);
  display: none;
  inset: 0;
  justify-content: center;
  padding: 24px;
  position: absolute;
  text-align: center;
}

.overlay.visible {
  display: flex;
}

.message {
  align-items: center;
  display: flex;
  gap: 18px;
  flex-direction: column;
  justify-content: center;
  max-width: none;
  width: 100%;
}

.game-over-title {
  color: var(--sand-light);
  font-size: clamp(2rem, 7vw, 4rem);
  line-height: 0.95;
  margin: 0;
  text-shadow:
    0 0 18px rgba(244, 185, 66, 0.45),
    2px 0 0 rgba(255, 47, 146, 0.3);
  text-transform: uppercase;
}

button {
  -webkit-tap-highlight-color: transparent;
  align-items: center;
  background: rgba(13, 21, 23, 0.88);
  border: 1px solid #29464b;
  border-radius: 2px;
  color: var(--text);
  cursor: pointer;
  display: inline-flex;
  font: inherit;
  font-weight: 700;
  gap: 8px;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  text-transform: uppercase;
  transition: background 180ms ease, border-color 180ms ease, box-shadow 180ms ease, color 180ms ease, transform 180ms ease;
}

.site-header .nav-trigger {
  appearance: none;
  background: transparent;
  border: 1px solid transparent;
  box-shadow: none;
  color: #a7a7ac;
  cursor: default;
  font-family: Arial, Helvetica, sans-serif;
  min-height: 34px;
  padding: 0 13px;
  text-transform: none;
  transform: none;
}

.site-header .nav-menu:hover .nav-trigger,
.site-header .nav-trigger:hover,
.site-header .nav-trigger:focus-visible {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.28);
  box-shadow: 0 0 34px rgba(120, 140, 255, 0.24);
  color: #f5f5f5;
  outline: none;
  transform: none;
}

#play {
  border-color: rgba(244, 185, 66, 0.72);
  box-shadow:
    0 0 22px rgba(244, 185, 66, 0.18),
    0 0 14px rgba(255, 47, 146, 0.08),
    inset 0 0 24px rgba(244, 185, 66, 0.06);
  color: var(--sand-light);
  font-size: clamp(1.5rem, 5vw, 3.2rem);
  letter-spacing: 0;
  min-height: clamp(72px, 12vw, 112px);
  padding: 0 clamp(42px, 9vw, 86px);
  position: relative;
  text-shadow: 0 0 14px rgba(244, 185, 66, 0.5);
  width: min(100%, 360px);
}

#play:hover,
#play:focus-visible {
  background: rgba(78, 48, 19, 0.98);
  border-color: rgba(255, 243, 212, 0.92);
  box-shadow:
    0 0 30px rgba(244, 185, 66, 0.34),
    0 0 16px rgba(255, 47, 146, 0.14),
    0 5px 0 rgba(62, 35, 13, 0.72),
    inset 0 0 22px rgba(244, 185, 66, 0.12);
  color: #fff3d4;
  cursor: pointer;
  text-shadow: 0 0 14px rgba(244, 185, 66, 0.48);
  transform: translateY(-4px) scale(1.02);
}

#play:active {
  box-shadow:
    0 0 20px rgba(244, 185, 66, 0.28),
    0 2px 0 rgba(62, 35, 13, 0.72),
    inset 0 0 20px rgba(90, 50, 20, 0.2);
  transform: translateY(-1px) scale(1);
}

#play.is-restart {
  background: rgba(44, 27, 12, 0.96);
  border: 2px solid var(--sand-light);
  box-shadow:
    0 0 34px rgba(244, 185, 66, 0.34),
    0 0 18px rgba(255, 47, 146, 0.18),
    inset 0 0 28px rgba(244, 185, 66, 0.12);
  color: #fff3d4;
  transform: translateY(0);
}

#play.is-restart::after {
  content: "";
  border: 1px solid rgba(255, 208, 138, 0.5);
  inset: 7px;
  pointer-events: none;
  position: absolute;
}

#play.is-restart:hover,
#play.is-restart:focus-visible {
  background: rgba(78, 48, 19, 0.98);
  border-color: rgba(255, 243, 212, 0.92);
  box-shadow:
    0 0 30px rgba(244, 185, 66, 0.34),
    0 0 16px rgba(255, 47, 146, 0.14),
    0 5px 0 rgba(62, 35, 13, 0.72),
    inset 0 0 22px rgba(244, 185, 66, 0.12);
  color: #fff3d4;
  cursor: pointer;
  text-shadow: 0 0 14px rgba(244, 185, 66, 0.48);
  transform: translateY(-4px) scale(1.02);
}

#play.is-restart:active {
  box-shadow:
    0 0 20px rgba(244, 185, 66, 0.28),
    0 2px 0 rgba(62, 35, 13, 0.72),
    inset 0 0 20px rgba(90, 50, 20, 0.2);
  transform: translateY(-1px) scale(1);
}

button:hover,
button:focus-visible {
  background: rgba(0, 255, 136, 0.08);
  border-color: var(--line-hot);
  box-shadow:
    0 0 18px rgba(0, 255, 136, 0.18),
    0 0 10px rgba(255, 47, 146, 0.08);
  outline: none;
  transform: translateY(-2px);
}

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

.touch-pad {
  display: none;
  gap: 8px;
  grid-template-columns: repeat(3, 54px);
  justify-content: center;
  padding-top: 2px;
}

.touch-pad button {
  color: var(--matrix);
  font-size: 0.78rem;
  min-height: 48px;
  padding: 0;
}

.touch-pad .up {
  grid-column: 2;
}

.touch-pad .left {
  grid-column: 1;
}

.touch-pad .down {
  grid-column: 2;
}

.touch-pad .right {
  grid-column: 3;
}

@media (max-width: 620px) {
  body {
    align-items: start;
    padding: 0 16px 16px;
  }

  .site-header {
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
    width: 100vw;
  }

  .nav {
    align-items: center;
    flex-direction: column;
    gap: 12px;
    min-height: auto;
    padding: 18px 0;
  }

  .nav-links {
    gap: 8px;
    justify-content: center;
    width: 100%;
  }

  .nav-menu {
    padding: 0;
  }

  .nav-link {
    font-size: 12px;
    min-height: 36px;
    padding: 0 8px;
    white-space: nowrap;
  }

  .dropdown {
    display: none;
  }

  main {
    margin-top: 24px;
  }

  .topbar {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .touch-pad {
    display: grid;
  }
}