:root {
  --fg: #e8f4ff;
  --accent: #6cf0ff;
  --dim: #45607a;
  --bg: #050810;
  --danger: #ff5566;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: 'Courier New', ui-monospace, monospace;
  overflow: hidden;
  height: 100%;
  width: 100%;
}

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

#game {
  background: radial-gradient(ellipse at 50% 30%, #0a1220 0%, #050810 70%, #020305 100%);
  display: block;
  max-width: 100vw;
  max-height: 100vh;
  box-shadow: 0 0 60px rgba(108, 240, 255, 0.08);
}

#hud {
  position: absolute;
  top: 18px;
  left: 24px;
  display: flex;
  gap: 28px;
  pointer-events: none;
  text-shadow: 0 0 8px rgba(108, 240, 255, 0.6);
}

.hud-row {
  display: flex;
  flex-direction: column;
  font-size: 13px;
  letter-spacing: 2px;
}

.hud-row .label {
  color: var(--dim);
  font-size: 10px;
  margin-bottom: 2px;
}

.hud-row span:not(.label) {
  font-size: 20px;
  color: var(--accent);
  font-weight: bold;
}

#lives {
  color: var(--fg) !important;
  letter-spacing: 4px;
}

#hud-right {
  position: absolute;
  top: 18px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
  text-shadow: 0 0 8px rgba(108, 240, 255, 0.6);
  align-items: flex-end;
}

#hud-right .hud-row {
  align-items: flex-end;
}

#missiles {
  color: #ffab5c !important;
  letter-spacing: 4px;
  font-size: 18px !important;
}

.bar {
  width: 90px;
  height: 8px;
  border: 1px solid var(--dim);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 3px;
}

.bar-wide {
  width: 130px;
}

.bar-fill {
  height: 100%;
  width: 100%;
  background: #7dffb0;
  transition: width 0.15s linear, background 0.2s ease;
}

#alert {
  position: absolute;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--danger);
  font-size: 13px;
  letter-spacing: 3px;
  text-shadow: 0 0 10px rgba(255, 85, 102, 0.8);
  pointer-events: none;
  min-height: 18px;
  animation: pulse 1.2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

#overlay {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(2, 3, 8, 0.88);
  text-align: center;
  gap: 10px;
  overflow-y: auto;
  padding: 16px 0;
}

#overlay.show { display: flex; }

#overlay h1 {
  font-size: 42px;
  letter-spacing: 12px;
  margin: 0;
  color: var(--fg);
  text-shadow: 0 0 20px rgba(108, 240, 255, 0.7);
}

#selects {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
}

.sel-row {
  display: flex;
  gap: 34px;
  flex-wrap: wrap;
  justify-content: center;
}

.sel-group h3 {
  color: var(--dim);
  font-size: 11px;
  letter-spacing: 3px;
  margin: 4px 0 6px 0;
  text-align: center;
  font-weight: normal;
}

.sel-group h3 kbd {
  border: 1px solid var(--dim);
  border-radius: 3px;
  padding: 1px 5px;
  color: var(--accent);
  font-family: inherit;
  font-size: 10px;
}

.cards {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 8px 10px;
  border: 1px solid #2a3a4e;
  background: rgba(8, 14, 26, 0.72);
  cursor: pointer;
  min-width: 104px;
  transition: border-color 0.12s ease, box-shadow 0.12s ease, transform 0.12s ease;
}

.card:hover {
  border-color: var(--dim);
  transform: translateY(-2px);
}

.card.sel {
  border-color: var(--accent);
  box-shadow: 0 0 14px rgba(108, 240, 255, 0.25), inset 0 0 10px rgba(108, 240, 255, 0.06);
}

.card b {
  font-size: 12px;
  letter-spacing: 1.5px;
  color: var(--fg);
}

.card span {
  font-size: 9.5px;
  color: var(--dim);
  text-align: center;
  line-height: 1.4;
  letter-spacing: 0.5px;
}

.card canvas {
  image-rendering: auto;
}

#overlay .sub {
  color: var(--dim);
  margin: 0 0 10px 0;
  font-size: 13px;
  letter-spacing: 2px;
}

.controls {
  display: flex;
  gap: 22px;
  color: var(--dim);
  font-size: 12px;
  margin-bottom: 18px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 500px;
}

.controls kbd {
  display: inline-block;
  border: 1px solid var(--dim);
  border-radius: 4px;
  padding: 2px 7px;
  margin-right: 4px;
  color: var(--accent);
  font-family: inherit;
}

#startBtn {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
  font-family: inherit;
  font-size: 18px;
  letter-spacing: 6px;
  padding: 12px 40px;
  cursor: pointer;
  transition: all 0.15s ease;
}

#startBtn:hover {
  background: var(--accent);
  color: #020305;
  box-shadow: 0 0 30px rgba(108, 240, 255, 0.6);
}

.hint {
  color: var(--danger);
  font-size: 14px;
  letter-spacing: 2px;
  min-height: 20px;
}