/* ============================================================
   Qubit Runner — Artistic Indie Theme
   Dark cinematic mode with warm accents
   ============================================================ */

/* ── Page wrapper ── */
#gameSection {
  padding: 0 clamp(16px, 3vw, 32px) 28px;
  max-width: 1200px;
  margin: 0 auto;
}

/* ── Page header ── */
.game-page-header {
  text-align: center;
  margin-bottom: 28px;
  padding: 32px 20px;
  background: var(--bg-deep);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.game-page-header-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--gold);
  letter-spacing: 3px;
  margin-bottom: 12px;
}

.game-page-header-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(1.8rem, 4.5vw, 2.8rem);
  font-weight: 700;
  background: linear-gradient(125deg, var(--coral), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
  line-height: 1.15;
  filter: drop-shadow(0 2px 20px rgba(232, 121, 121, 0.2));
}

.game-page-header-desc {
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.8;
}

/* Game viewport — deliberately dark "arcade screen" (unchanged)
   Everything inside uses fixed light colors, not theme vars. */
.game-viewport {
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4), inset 0 0 60px rgba(0, 0, 0, 0.6);
}

#gameWrap {
  width: 100%;
  height: clamp(400px, 56vw, 600px);
  position: relative;
}

#gameCanvas {
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  cursor: pointer;
}

/* ── Overlay panels (HTML, not canvas) ── */
#gameMenu,
#gameOver {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(11, 13, 20, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 10;
  text-align: center;
  gap: 8px;
}

#gameMenu {
  display: flex;
}

#gameOver {
  display: none;
}

/* Game title */
.game-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  background: linear-gradient(125deg, var(--coral) 0%, #fff 40%, var(--gold) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 3px;
  filter: drop-shadow(0 0 20px rgba(232, 121, 121, 0.3));
  margin-bottom: 8px;
}

.game-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-style: italic;
}

.game-tagline {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--purple);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}

/* Start button */
.game-start-btn {
  margin-top: 16px;
  padding: 14px 40px;
  background: linear-gradient(135deg, var(--coral), var(--gold));
  color: #fff;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 2px;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 6px 28px rgba(232, 121, 121, 0.35);
  transition: transform 0.15s ease, box-shadow 0.2s ease;
  animation: pulse-btn-warm 2.5s ease-in-out infinite;
}

.game-start-btn:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 10px 40px rgba(232, 121, 121, 0.5);
}

@keyframes pulse-btn-warm {
  0%, 100% { box-shadow: 0 6px 28px rgba(232, 121, 121, 0.35); }
  50% { box-shadow: 0 6px 40px rgba(232, 121, 121, 0.6), 0 0 60px rgba(212, 165, 116, 0.2); }
}

.game-highscore {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--purple);
  margin-top: 14px;
  opacity: 0.8;
}

/* How to play section */
.game-how {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 28px;
  padding: 20px 28px;
  background: rgba(139, 107, 174, 0.08);
  border: 1px solid rgba(139, 107, 174, 0.2);
  border-radius: var(--radius-md);
  max-width: 340px;
}

.game-how-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  letter-spacing: 3px;
  color: var(--gold);
  margin-bottom: 4px;
}

.game-how-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.88rem;
  color: var(--text);
  text-align: left;
}

.game-how-icon {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  background: rgba(212, 165, 116, 0.15);
  border: 1px solid rgba(212, 165, 116, 0.25);
  border-radius: 8px;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.game-how-text strong {
  color: var(--text);
  font-weight: 600;
}

/* ── Game over panel ── */
.go-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  color: var(--coral);
  letter-spacing: 2px;
  text-shadow: 0 0 30px rgba(232, 121, 121, 0.4);
}

.go-sub {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.go-score {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  color: var(--gold);
  text-shadow: 0 0 30px rgba(212, 165, 116, 0.5);
  line-height: 1;
}

.go-best {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  color: var(--purple);
  margin-top: 6px;
  opacity: 0.8;
}

.go-newrecord {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 2px;
  color: #34e08a;
  margin-top: 10px;
  animation: record-flash 0.8s ease-in-out infinite alternate;
}

@keyframes record-flash {
  from { opacity: 0.6; text-shadow: 0 0 10px rgba(52, 224, 138, 0.3); }
  to   { opacity: 1; text-shadow: 0 0 20px rgba(52, 224, 138, 0.8); }
}

.go-retry {
  margin-top: 20px;
  padding: 12px 32px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid rgba(232, 121, 121, 0.3);
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
  animation: pulse-btn-warm 2.5s ease-in-out infinite;
}

.go-retry:hover {
  border-color: var(--coral);
  background: rgba(232, 121, 121, 0.1);
  transform: translateY(-1px);
}

/* ── Quantum arcade card on home page ── */
.arcade-card {
  background: linear-gradient(135deg, rgba(232, 121, 121, 0.08), rgba(212, 165, 116, 0.08));
  border: 1px solid rgba(232, 121, 121, 0.25);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  display: flex;
  align-items: center;
  gap: 28px;
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
  margin-bottom: 28px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.arcade-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(500px 300px at var(--mx, 50%) var(--my, 50%),
    rgba(232, 121, 121, 0.15), transparent 70%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.arcade-card:hover {
  transform: translateY(-4px);
  border-color: rgba(232, 121, 121, 0.5);
  box-shadow: 0 14px 56px rgba(232, 121, 121, 0.18), 0 0 40px rgba(212, 165, 116, 0.1);
}

.arcade-card:hover::before { opacity: 1; }

.arcade-card-icon {
  width: 80px;
  height: 80px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(232, 121, 121, 0.2), rgba(212, 165, 116, 0.2));
  border: 1px solid rgba(232, 121, 121, 0.3);
  display: grid;
  place-items: center;
  font-size: 2.2rem;
  flex-shrink: 0;
  box-shadow: 0 0 30px rgba(232, 121, 121, 0.15);
}

.arcade-card-content {
  flex: 1;
}

.arcade-card-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 3px;
  color: var(--gold);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.arcade-card-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  background: linear-gradient(125deg, var(--coral), var(--text));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.arcade-card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.arcade-card-play {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--coral), var(--gold));
  display: grid;
  place-items: center;
  flex-shrink: 0;
  box-shadow: 0 4px 20px rgba(232, 121, 121, 0.4);
  transition: transform 0.2s ease;
}

.arcade-card:hover .arcade-card-play {
  transform: scale(1.1);
}

.arcade-card-play svg {
  width: 22px;
  height: 22px;
  fill: #fff;
  margin-left: 3px;
}

/* Feature badge on arcade card */
.arcade-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.62rem;
  letter-spacing: 2px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(52, 224, 138, 0.15);
  border: 1px solid rgba(52, 224, 138, 0.4);
  color: #34e08a;
}

/* ── Responsive ── */
@media (max-width: 600px) {
  .arcade-card {
    flex-direction: column;
    text-align: center;
    padding: 24px;
  }

  .arcade-card-play {
    width: 44px;
    height: 44px;
  }

  .arcade-card-play svg {
    width: 18px;
    height: 18px;
  }

  /* Better mobile game header readability */
  .game-page-header {
    padding: 24px 16px 32px;
    margin-bottom: 20px;
  }

  .game-page-header-number { font-size: 0.75rem; letter-spacing: 3px; }
  .game-page-header-title { font-size: clamp(1.6rem, 6vw, 2.2rem); }
  .game-page-header-desc {
    font-size: 0.95rem;
    line-height: 1.65;
    padding: 0 8px;
  }

  /* Better game menu readability */
  .game-title { font-size: clamp(1.8rem, 6vw, 2.5rem); }
  .game-subtitle { font-size: 1rem; }
  .game-tagline { font-size: 0.85rem; padding: 0 16px; }
  .game-start-btn { padding: 16px 40px; font-size: 1.1rem; }
  .game-how { padding: 16px; }
  .game-how-title { font-size: 0.85rem; }
  .game-how-item { padding: 10px 0; font-size: 0.9rem; }
}