:root {
  --navy: #0a0e1a;
  --navy2: #0f1526;
  --blue: #2a4a7f;
  --muted-blue: #5a7fb8;
  --teal: #3fb8a8;
  --orange: #ff8c42;
  --cream: #f2e8d5;
  --neon: #7fe7ff;
  --danger: #ff5a6e;
  --ui-bg: rgba(10, 14, 26, 0.82);
  --ui-border: #2a4a7f;
  --text: #f2e8d5;
  --text-dim: #8ba0c4;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  width: 100%;
  height: 100%;
  background: var(--navy);
  overflow: hidden;
  font-family: "Courier New", "Lucida Console", monospace;
  color: var(--text);
  -webkit-font-smoothing: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
}

#game-root {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--navy);
}

#game-canvas {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  display: block;
  background: #0a0e1a;
}

.hidden { display: none !important; }

/* ---------- HUD ---------- */
#hud {
  position: absolute;
  inset: 0;
  pointer-events: none;
  font-family: "Courier New", monospace;
}
#hud button { pointer-events: auto; }

.hud-top {
  position: absolute;
  top: 0; left: 0; right: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 10px 14px;
}
.hud-bottom {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 10px 14px;
}
.hud-group { display: flex; align-items: center; gap: 12px; }

.hud-health { display: flex; gap: 5px; }
.hud-health .cell {
  width: 16px; height: 16px;
  border: 2px solid var(--cream);
  border-radius: 3px;
  background: transparent;
  transition: background 0.15s;
}
.hud-health .cell.on { background: var(--orange); border-color: var(--orange); box-shadow: 0 0 6px rgba(255,140,66,0.6); }

.hud-bits, .hud-cores {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 15px; font-weight: bold;
  background: var(--ui-bg);
  padding: 5px 10px;
  border: 1px solid var(--ui-border);
  border-radius: 6px;
  text-shadow: 0 1px 2px rgba(0,0,0,0.6);
}
.bit-icon {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 6px var(--neon);
  display: inline-block;
}
.core-icon {
  width: 10px; height: 10px;
  background: var(--orange);
  transform: rotate(45deg);
  box-shadow: 0 0 6px rgba(255,140,66,0.7);
  display: inline-block;
}
.hud-sep { color: var(--text-dim); }

.hud-btn {
  width: 36px; height: 36px;
  background: var(--ui-bg);
  border: 1px solid var(--ui-border);
  color: var(--text);
  font-size: 16px;
  border-radius: 6px;
  cursor: pointer;
}
.hud-btn:hover, .hud-btn:focus { border-color: var(--orange); outline: none; }
.pause-icon {
  display: inline-block;
  width: 12px; height: 12px;
  border-left: 4px solid var(--cream);
  border-right: 4px solid var(--cream);
}
.tri {
  display: inline-block;
  width: 0; height: 0;
}
.tri-l { border-top: 11px solid transparent; border-bottom: 11px solid transparent; border-right: 16px solid var(--cream); }
.tri-r { border-top: 11px solid transparent; border-bottom: 11px solid transparent; border-left: 16px solid var(--cream); }

.dash-cooldown {
  position: relative;
  width: 130px; height: 18px;
  background: rgba(15,21,38,0.8);
  border: 1px solid var(--ui-border);
  border-radius: 4px;
  overflow: hidden;
}
.dash-cooldown-fill {
  position: absolute; inset: 0;
  background: var(--teal);
  width: 100%;
  transform-origin: left;
  transition: transform 0.05s linear;
}
.dash-label {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 9px; letter-spacing: 2px; color: var(--navy);
  font-weight: bold;
}
.dash-cooldown.dash-ready .dash-cooldown-fill { background: var(--orange); }

.hud-time {
  font-size: 14px; font-weight: bold;
  background: var(--ui-bg);
  padding: 5px 10px;
  border: 1px solid var(--ui-border);
  border-radius: 6px;
}

/* ---------- Menus ---------- */
#menu-root {
  position: absolute;
  pointer-events: none;
  z-index: 10;
}
#menu-root .menu { pointer-events: auto; }
.menu {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 50% 30%, rgba(42,74,127,0.35), rgba(10,14,26,0.94) 70%);
  z-index: 10;
}
.menu-panel {
  text-align: center;
  padding: 30px 40px;
  max-width: 560px;
  width: 90%;
  animation: menu-in 0.3s ease-out;
}
@keyframes menu-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.game-title {
  font-size: clamp(36px, 8vw, 64px);
  letter-spacing: 6px;
  font-weight: bold;
  color: var(--cream);
  text-shadow: 0 0 12px rgba(127,231,255,0.35), 2px 3px 0 var(--navy2);
  margin-bottom: 4px;
}
.game-subtitle {
  font-size: 16px;
  letter-spacing: 8px;
  color: var(--neon);
  text-transform: uppercase;
  margin-bottom: 28px;
  text-shadow: 0 0 8px rgba(127,231,255,0.6);
}

.menu-btn {
  display: block;
  width: 100%;
  max-width: 300px;
  margin: 8px auto;
  padding: 12px 20px;
  font-family: inherit;
  font-size: 16px;
  font-weight: bold;
  letter-spacing: 2px;
  color: var(--text);
  background: rgba(15,21,38,0.85);
  border: 2px solid var(--ui-border);
  border-radius: 6px;
  cursor: pointer;
  transition: border-color 0.12s, background 0.12s, transform 0.06s;
}
.menu-btn:hover, .menu-btn:focus {
  border-color: var(--orange);
  background: rgba(42,74,127,0.5);
  outline: none;
}
.menu-btn:active { transform: scale(0.97); }
.menu-btn.primary { border-color: var(--orange); color: var(--orange); }
.menu-btn.primary:hover { background: rgba(255,140,66,0.18); }
.menu-btn.small { font-size: 13px; padding: 9px 14px; }

.menu-title {
  font-size: 22px;
  letter-spacing: 3px;
  color: var(--cream);
  margin-bottom: 6px;
}
.menu-sub {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 20px;
}

/* Level select */
.level-grid { display: flex; flex-direction: column; gap: 10px; margin: 16px 0; }
.level-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(15,21,38,0.85);
  border: 2px solid var(--ui-border);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.12s;
  text-align: left;
}
.level-card:hover, .level-card:focus { border-color: var(--orange); outline: none; }
.level-card.locked { opacity: 0.45; cursor: not-allowed; }
.level-card .lc-name { font-size: 16px; font-weight: bold; letter-spacing: 1px; }
.level-card .lc-meta { font-size: 12px; color: var(--text-dim); margin-top: 3px; }
.level-card .lc-status { font-size: 12px; letter-spacing: 1px; color: var(--teal); font-weight: bold; white-space: nowrap; }
.level-card.locked .lc-status { color: var(--text-dim); }

/* Settings rows */
.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin: 10px 0;
  font-size: 14px;
}
.setting-row label { color: var(--text); letter-spacing: 1px; }
.slider {
  -webkit-appearance: none;
  appearance: none;
  width: 150px;
  height: 6px;
  background: var(--ui-border);
  border-radius: 3px;
  cursor: pointer;
}
.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px;
  background: var(--orange);
  border-radius: 50%;
  cursor: pointer;
}
.slider::-moz-range-thumb {
  width: 16px; height: 16px;
  background: var(--orange);
  border-radius: 50%;
  border: none;
  cursor: pointer;
}
.toggle {
  width: 46px; height: 24px;
  border-radius: 12px;
  background: var(--ui-border);
  border: none;
  cursor: pointer;
  position: relative;
  transition: background 0.15s;
}
.toggle::after {
  content: "";
  position: absolute;
  top: 3px; left: 3px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--cream);
  transition: left 0.15s;
}
.toggle.on { background: var(--teal); }
.toggle.on::after { left: 25px; }

/* Completion */
.complete-stats {
  margin: 14px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  font-size: 14px;
}
.complete-stats .stat {
  background: rgba(15,21,38,0.85);
  border: 1px solid var(--ui-border);
  border-radius: 6px;
  padding: 8px;
}
.complete-stats .stat .sv { font-size: 20px; font-weight: bold; color: var(--neon); }
.complete-stats .stat .sl { font-size: 11px; color: var(--text-dim); letter-spacing: 1px; }

.howto-list { text-align: left; margin: 12px 0; font-size: 14px; line-height: 2; }
.howto-list .key {
  display: inline-block;
  min-width: 24px;
  padding: 1px 7px;
  background: rgba(42,74,127,0.5);
  border: 1px solid var(--ui-border);
  border-radius: 4px;
  font-weight: bold;
  text-align: center;
  margin-right: 6px;
}

/* ---------- Touch controls ---------- */
#touch-controls {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 5;
}
.touch-dpad {
  position: absolute;
  bottom: 26px; left: 20px;
  display: flex; gap: 14px;
  pointer-events: auto;
}
.touch-actions {
  position: absolute;
  bottom: 26px; right: 20px;
  display: flex; gap: 14px;
  align-items: flex-end;
  pointer-events: auto;
}
.touch-btn {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: rgba(242,232,213,0.14);
  border: 2px solid rgba(242,232,213,0.5);
  color: var(--cream);
  font-size: 22px;
  font-weight: bold;
  font-family: inherit;
  cursor: pointer;
  touch-action: none;
  display: flex; align-items: center; justify-content: center;
}
.touch-btn:active, .touch-btn.pressed {
  background: rgba(127,231,255,0.35);
  border-color: var(--neon);
}
.touch-jump {
  width: 84px; height: 84px;
  font-size: 14px;
  background: rgba(255,140,66,0.18);
  border-color: rgba(255,140,66,0.6);
}
.touch-dash {
  width: 58px; height: 58px;
  font-size: 11px;
  letter-spacing: 1px;
}

@media (pointer: coarse) {
  .hud-btn { width: 46px; height: 46px; }
}