:root {
  --bg: #04070f;
  --panel: rgba(7, 15, 32, 0.9);
  --panel-border: rgba(146, 211, 255, 0.2);
  --text: #eef6ff;
  --muted: #aac0dc;
  --accent: #9cff57;
  --accent-2: #82d8ff;
  --danger: #ff6f91;
  --shadow: rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  color: var(--text);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top, rgba(130, 216, 255, 0.14), transparent 34%),
    radial-gradient(circle at bottom, rgba(156, 255, 87, 0.12), transparent 36%),
    linear-gradient(180deg, #08101d 0%, #03060d 100%);
}

.app {
  width: min(100%, 860px);
}

.intro {
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  color: var(--accent-2);
}

h1 {
  margin: 0;
  font-size: clamp(2.3rem, 5vw, 3.8rem);
  line-height: 0.94;
}

.lead {
  max-width: 60ch;
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.game-shell {
  padding: 20px;
  border-radius: 28px;
  border: 1px solid var(--panel-border);
  background:
    linear-gradient(180deg, rgba(14, 28, 57, 0.96), rgba(6, 12, 28, 0.96)),
    var(--panel);
  box-shadow: 0 28px 54px var(--shadow);
  backdrop-filter: blur(8px);
}

.hud {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.stat {
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #bed4ee;
}

.stat span:last-child {
  font-size: clamp(1.2rem, 3vw, 1.7rem);
  font-weight: 700;
}

canvas {
  width: 100%;
  height: auto;
  display: block;
  background: linear-gradient(180deg, #050914 0%, #0b1324 66%, #08111f 100%);
  border-radius: 22px;
  border: 2px solid rgba(130, 216, 255, 0.16);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.controls-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 16px;
}

#status {
  margin: 0;
  min-height: 1.5rem;
  color: var(--muted);
}

.actions {
  display: flex;
  gap: 10px;
}

button {
  border: 0;
  cursor: pointer;
  color: #08101d;
  font: inherit;
  font-weight: 700;
  touch-action: manipulation;
  transition: transform 140ms ease, filter 140ms ease;
}

#pause,
#restart,
.control {
  padding: 0.75rem 1.15rem;
  border-radius: 999px;
}

#pause,
.control {
  background: linear-gradient(180deg, #f0fbff 0%, #82d8ff 100%);
}

#restart {
  background: linear-gradient(180deg, #e6ffc8 0%, #9cff57 100%);
}

button:hover {
  filter: brightness(1.05);
}

button:active {
  transform: translateY(1px) scale(0.99);
}

.touch-controls {
  width: min(380px, 100%);
  margin: 20px auto 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.control {
  min-height: 56px;
}

@media (max-width: 700px) {
  body {
    padding: 16px;
  }

  .game-shell {
    padding: 16px;
    border-radius: 24px;
  }

  .hud {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .controls-row {
    flex-direction: column;
    align-items: stretch;
  }

  .actions {
    width: 100%;
  }

  #pause,
  #restart {
    flex: 1;
  }
}