:root {
  color-scheme: dark;
  --bg: #040814;
  --panel: rgba(10, 19, 42, 0.92);
  --panel-border: rgba(135, 182, 255, 0.24);
  --text: #f4f7ff;
  --muted: #9eb6e8;
  --accent: #4fc3ff;
  --accent-strong: #67f5a6;
  --danger: #ff7b88;
  --shadow: 0 20px 45px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  overscroll-behavior: none;
  -webkit-text-size-adjust: 100%;
  background:
    radial-gradient(circle at top, rgba(79, 195, 255, 0.18), transparent 30%),
    linear-gradient(180deg, #06101f 0%, #02050d 100%);
}

button {
  font: inherit;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
  touch-action: manipulation;
}

.game-panel {
  width: min(100%, 860px);
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 24px;
}

.top-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}

.title-block h1 {
  margin: 0;
  font-size: clamp(2rem, 3vw, 2.6rem);
}

.eyebrow {
  margin: 0 0 4px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
  font-size: 0.8rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button-row button,
.touch-button {
  border: 1px solid rgba(103, 245, 166, 0.35);
  border-radius: 999px;
  color: var(--text);
  background: linear-gradient(180deg, rgba(79, 195, 255, 0.24), rgba(103, 245, 166, 0.18));
  padding: 12px 18px;
  cursor: pointer;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
}

.button-row button:hover,
.touch-button:hover,
.button-row button:focus-visible,
.touch-button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(103, 245, 166, 0.7);
  outline: none;
}

.button-row button:active,
.touch-button:active,
.touch-button.is-active {
  transform: translateY(1px) scale(0.98);
}

.hud {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0 18px;
}

.stat-card {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(7, 14, 29, 0.75);
  border: 1px solid rgba(135, 182, 255, 0.16);
}

.stat-label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.88rem;
}

.stat-card strong {
  font-size: 1.35rem;
}

.canvas-frame {
  position: relative;
  width: min(100%, 560px);
  margin: 0 auto;
}

#gameCanvas {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 20px;
  border: 1px solid rgba(135, 182, 255, 0.25);
  background: linear-gradient(180deg, #04101f 0%, #010409 100%);
  touch-action: none;
}

.status-banner {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  width: calc(100% - 48px);
  max-width: 360px;
  text-align: center;
  padding: 14px 18px;
  border-radius: 16px;
  background: rgba(2, 7, 15, 0.84);
  border: 1px solid rgba(79, 195, 255, 0.28);
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.status-banner.is-hidden {
  display: none;
}

.win-overlay {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  width: calc(100% - 56px);
  max-width: 380px;
  text-align: center;
  padding: 24px 20px;
  border-radius: 22px;
  background: rgba(3, 9, 18, 0.9);
  border: 1px solid rgba(103, 245, 166, 0.42);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  z-index: 2;
}

.win-overlay.is-hidden {
  display: none;
}

.win-eyebrow {
  margin: 0 0 8px;
  color: #ffdd57;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.82rem;
}

.win-overlay h2 {
  margin: 0 0 10px;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
}

.win-overlay p:last-child {
  margin: 0;
  color: var(--muted);
}

.instructions {
  margin: 18px 0 0;
  text-align: center;
  color: var(--muted);
}

.touch-controls {
  display: none;
  margin: 22px auto 0;
  width: min(100%, 560px);
  grid-template-columns: 1fr 1.1fr 1fr;
  gap: 14px;
  touch-action: manipulation;
}

.touch-button {
  min-height: 64px;
  font-size: 1.3rem;
  font-weight: 700;
}

.touch-button-fire {
  background: linear-gradient(180deg, rgba(103, 245, 166, 0.28), rgba(79, 195, 255, 0.18));
}

@media (max-width: 720px) {
  .game-panel {
    padding: 18px;
    border-radius: 18px;
  }

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

@media (hover: none), (pointer: coarse) {
  .touch-controls {
    display: grid;
  }

  .instructions {
    margin-bottom: 4px;
  }
}