@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=JetBrains+Mono:wght@300;400;700&display=swap');

:root {
  --bg: #070714;
  --surface: rgba(255,255,255,0.04);
  --border: rgba(255,255,255,0.08);
  --text: #e2e8f8;
  --accent: #00f5d4;
  --accent2: #ff6b9d;
  --danger: #ff3860;
  --purple: #c084fc;
  --glow: rgba(0,245,212,0.25);
}

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

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: var(--bg);
  font-family: 'JetBrains Mono', monospace;
  color: var(--text);
  user-select: none;
}

/* ── CANVAS ─────────────────────────────── */
#gameCanvas {
  display: block;
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* ── HUD ─────────────────────────────────── */
#hud {
  position: fixed;
  top: 0; left: 0; right: 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 18px 24px;
  pointer-events: none;
  z-index: 10;
}

#score-panel {
  display: flex;
  gap: 32px;
}

.score-block {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.score-label {
  font-size: 9px;
  letter-spacing: 4px;
  opacity: 0.4;
  font-family: 'JetBrains Mono', monospace;
}

#score-val, #best-val {
  font-family: 'Orbitron', sans-serif;
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  text-shadow: 0 0 20px var(--accent), 0 0 40px rgba(0,245,212,0.3);
}

#best-val { color: var(--purple); text-shadow: 0 0 20px var(--purple); }

#status-panel {
  display: flex;
  align-items: center;
  gap: 10px;
}

#powerup-indicator {
  font-size: 11px;
  letter-spacing: 2px;
  padding: 5px 14px;
  border-radius: 20px;
  border: 1px solid var(--accent);
  color: var(--accent);
  text-shadow: 0 0 10px var(--accent);
  animation: pulseBorder 1.5s ease-in-out infinite;
}

@keyframes pulseBorder {
  0%, 100% { box-shadow: 0 0 6px var(--glow); }
  50% { box-shadow: 0 0 18px var(--glow); }
}

#ai-badge {
  font-size: 11px;
  letter-spacing: 2px;
  padding: 5px 14px;
  border-radius: 20px;
  background: rgba(192,132,252,0.15);
  border: 1px solid var(--purple);
  color: var(--purple);
  animation: pulseBorder 1.5s ease-in-out infinite;
}

.hidden { display: none !important; }

/* ── SCREENS ─────────────────────────────── */
.screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  background: rgba(7, 7, 20, 0.85);
  backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.screen.active {
  opacity: 1;
  pointer-events: all;
}

.screen-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
  padding: 48px 52px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 6px;
  position: relative;
  overflow: hidden;
}

.screen-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.6;
}

.game-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 72px;
  font-weight: 900;
  letter-spacing: 8px;
  color: var(--text);
  text-shadow: 0 0 40px rgba(0,245,212,0.4), 0 0 80px rgba(0,245,212,0.15);
  line-height: 1;
}

.game-title .accent {
  color: var(--accent);
  text-shadow: 0 0 30px var(--accent);
}

.subtitle {
  font-size: 10px;
  letter-spacing: 10px;
  opacity: 0.3;
  margin-top: -12px;
}

.key-hints {
  display: flex;
  gap: 20px;
}

.hint {
  font-size: 11px;
  letter-spacing: 2px;
  opacity: 0.5;
  display: flex;
  align-items: center;
  gap: 8px;
}

kbd {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 4px;
  padding: 3px 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
}

.btn-primary {
  font-family: 'Orbitron', sans-serif;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 4px;
  color: #000;
  background: var(--accent);
  border: none;
  border-radius: 4px;
  padding: 14px 52px;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 0 24px rgba(0,245,212,0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 32px rgba(0,245,212,0.6);
}

.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  font-family: 'Orbitron', sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 14px 32px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:hover {
  border-color: var(--accent2);
  color: var(--accent2);
}

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

.best-label {
  font-size: 11px;
  letter-spacing: 4px;
  opacity: 0.3;
}

/* Game Over */
.over-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 48px;
  font-weight: 900;
  letter-spacing: 6px;
  color: var(--danger);
  text-shadow: 0 0 30px var(--danger);
}

.over-scores {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}

.over-score-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  letter-spacing: 3px;
  padding: 10px 16px;
  background: rgba(255,255,255,0.03);
  border-radius: 4px;
}

.over-score-row span:last-child {
  font-family: 'Orbitron', sans-serif;
  font-size: 22px;
  color: var(--accent);
}

.best-row span:last-child { color: var(--purple); }

/* Toast */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(0);
  background: rgba(0,0,0,0.9);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 12px;
  letter-spacing: 3px;
  padding: 10px 28px;
  border-radius: 4px;
  z-index: 200;
  transition: all 0.3s;
  opacity: 1;
}

.toast.hidden {
  display: none !important;
}