*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: #000;
  color: #e4faff;
  font-family: 'Consolas', 'Courier New', monospace;
  overflow: hidden;
  user-select: none;
}

.app {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

#canvas {
  width: 100%;
  height: 100%;
  display: block;
  background: #05010f;
  image-rendering: pixelated;
  transition: filter 0.15s linear;
}

.app.boost #canvas {
  filter: drop-shadow(3px 0 0 rgba(255, 0, 120, 0.7)) drop-shadow(-3px 0 0 rgba(0, 220, 255, 0.7)) saturate(1.3);
}

.app.damage #canvas {
  filter: drop-shadow(5px 0 0 #ff0050) drop-shadow(-5px 0 0 #ff0050);
}

.splash, .finish {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at center, rgba(40, 0, 80, 0.85) 0%, rgba(5, 1, 15, 0.98) 80%);
  z-index: 20;
  text-align: center;
  padding: 2rem;
}

.splash h1, .finish h2 {
  font-size: clamp(2rem, 8vw, 5rem);
  margin: 0 0 0.5rem;
  color: #ff2fa0;
  letter-spacing: 0.2em;
  text-shadow:
    0 0 10px #ff2fa0,
    0 0 25px #ff2fa0,
    2px 0 0 #00e5ff,
    -2px 0 0 #ffb400;
}

.sub {
  color: #8fd5ff;
  letter-spacing: 0.15em;
  margin: 0.3rem 0;
  font-size: 1rem;
}

.instructions {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
  color: #e4faff;
  line-height: 1.8;
  font-size: 0.95rem;
}

.menu {
  padding: 0;
  margin: 1.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  width: min(420px, 90vw);
}

.menu-item {
  width: 100%;
  background: rgba(5, 1, 20, 0.7);
  border: 1px solid #ff2fa0;
  color: #e4faff;
  font-family: inherit;
  font-size: 1.1rem;
  letter-spacing: 0.2em;
  padding: 0.9rem 1.2rem;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s, box-shadow 0.15s, transform 0.1s;
}

.menu-item:hover,
.menu-item:focus {
  outline: none;
  background: rgba(255, 47, 160, 0.2);
  box-shadow: 0 0 14px rgba(255, 47, 160, 0.7), inset 0 0 12px rgba(0, 229, 255, 0.25);
  transform: translateX(4px);
  color: #fff;
}

.menu-item[aria-selected="true"],
.menu-item.active {
  background: rgba(255, 47, 160, 0.3);
  box-shadow: 0 0 14px rgba(255, 47, 160, 0.9);
  color: #fff;
}

.menu-item::before {
  content: '> ';
  color: #00e5ff;
}

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at center, rgba(40, 0, 80, 0.92) 0%, rgba(5, 1, 15, 0.99) 80%);
  z-index: 50;
  text-align: center;
  padding: 2rem;
  overflow-y: auto;
}

.overlay h2 {
  font-size: clamp(2rem, 6vw, 4rem);
  margin: 0 0 0.5rem;
  color: #00e5ff;
  letter-spacing: 0.25em;
  text-shadow: 0 0 10px #00e5ff, 0 0 25px #00e5ff;
}

.instructions li::before {
  content: '> ';
  color: #ff2fa0;
}

.text-input {
  width: min(420px, 85vw);
  margin: 1rem 0 0.5rem;
  padding: 0.9rem 1.2rem;
  background: rgba(5, 1, 20, 0.85);
  border: 1px solid #00e5ff;
  color: #e4faff;
  font-family: inherit;
  font-size: 1.3rem;
  letter-spacing: 0.25em;
  text-align: center;
  text-transform: uppercase;
}

.text-input:focus {
  outline: none;
  box-shadow: 0 0 14px rgba(0, 229, 255, 0.8), inset 0 0 12px rgba(255, 47, 160, 0.2);
}

#online-lobby-code {
  font-size: 1.6rem;
  letter-spacing: 0.4em;
  color: #00e5ff;
  text-shadow: 0 0 10px #00e5ff;
  margin: 0.5rem 0 1rem;
}

#online-lobby-players {
  width: min(420px, 85vw);
  margin: 1rem 0;
}

.hud {
  position: absolute;
  inset: 0;
  pointer-events: none;
  padding: 1.2rem 1.8rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  z-index: 10;
  opacity: 0;
  transition: opacity 0.3s;
}

.hud.active { opacity: 1; }

.hud-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.hud-box {
  background: rgba(5, 1, 20, 0.55);
  border: 1px solid #ff2fa0;
  padding: 0.5rem 0.9rem;
  min-width: 110px;
  box-shadow: 0 0 12px rgba(255, 47, 160, 0.5), inset 0 0 10px rgba(0, 229, 255, 0.15);
  font-variant-numeric: tabular-nums;
}

.hud-box .label {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: #8fd5ff;
  margin-bottom: 0.15rem;
}

.hud-box span:not(.label):not(.unit) {
  font-size: 1.5rem;
  color: #fff;
  text-shadow: 0 0 8px #00e5ff;
}

.hud-box .unit {
  font-size: 0.7rem;
  color: #8fd5ff;
  margin-left: 0.2rem;
}

.hud-box.gear span:not(.label) {
  color: #ffb400;
  text-shadow: 0 0 8px #ffb400;
}

.bar {
  width: 140px;
  height: 10px;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid #00e5ff;
  margin-top: 0.3rem;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #ff2fa0 0%, #00e5ff 100%);
  transition: width 0.15s linear;
}

.bar-fill.low { background: #ff0050; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.finish { z-index: 30; }

.gameover {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at center, rgba(80, 0, 0, 0.92) 0%, rgba(10, 0, 0, 0.99) 80%);
  z-index: 40;
  text-align: center;
  padding: 2rem;
  animation: goFade 0.8s ease-out;
}

@keyframes goFade {
  from { opacity: 0; }
  to { opacity: 1; }
}

.gameover h2 {
  font-size: clamp(2.5rem, 10vw, 6rem);
  margin: 0 0 0.5rem;
  color: #ff0040;
  letter-spacing: 0.25em;
  text-shadow:
    0 0 10px #ff0040,
    0 0 25px #ff0040,
    0 0 50px #8b0000,
    3px 0 0 #000,
    -3px 0 0 #000;
  animation: goPulse 1.6s ease-in-out infinite;
}

@keyframes goPulse {
  0%, 100% { text-shadow: 0 0 10px #ff0040, 0 0 25px #ff0040, 0 0 50px #8b0000, 3px 0 0 #000, -3px 0 0 #000; }
  50%      { text-shadow: 0 0 14px #ff2040, 0 0 40px #ff0040, 0 0 80px #ff0040, 3px 0 0 #000, -3px 0 0 #000; }
}

.go-epitaph {
  color: #ff7a7a;
  font-style: italic;
  margin-bottom: 1.5rem;
}

.gameover-stats {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  line-height: 1.9;
  color: #ffcccc;
  font-size: 1rem;
}

.gameover-stats li::before {
  content: '> ';
  color: #ff0040;
}

.gameover-stats strong {
  color: #fff;
  text-shadow: 0 0 6px #ff0040;
  margin-left: 0.4em;
}