/* ============================================================
   Eight Trigrams Furnace — Page Styles
   "Mogao Dunhuang" design system — cinematic furnace interior
   ============================================================ */

/* ---- Page body ---- */
body.game-active .site-nav { display: none !important; }
body.game-active .site-footer { display: none !important; }
body.game-active {
  background: #0d0a14;
  overflow: hidden;
  margin: 0;
  padding: 0;
}
body {
  background: #0d0a14;
  color: var(--text-on-dark);
  margin: 0;
  padding: 0;
  overflow: hidden;
  font-family: var(--font-body);
}

/* ---- Canvas Container ---- */
#game-wrapper {
  position: fixed;
  inset: 0;
  z-index: 1;
}
#furnace-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* ---- Cover Screen ---- */
.cover-screen {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0d0a14;
  transition: opacity 0.8s ease-out;
}
.cover-screen.hidden {
  opacity: 0;
  pointer-events: none;
}
.cover-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 60%, rgba(196,77,52,0.12) 0%, transparent 60%),
              radial-gradient(ellipse at 50% 40%, rgba(201,168,76,0.06) 0%, transparent 50%);
  animation: cover-flicker 4s ease-in-out infinite;
}
@keyframes cover-flicker {
  0%, 100% { opacity: 0.8; }
  50% { opacity: 1; }
}
.cover-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 520px;
  padding: var(--space-lg);
}
.cover-sigil {
  font-size: 4rem;
  margin-bottom: var(--space-sm);
  filter: drop-shadow(0 0 30px rgba(196,77,52,0.4));
  animation: sigil-pulse 2s ease-in-out infinite;
}
@keyframes sigil-pulse {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 30px rgba(196,77,52,0.4)); }
  50% { transform: scale(1.08); filter: drop-shadow(0 0 50px rgba(255,170,0,0.6)); }
}
.cover-kicker {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--accent-vermillion);
  margin-bottom: var(--space-sm);
}
.cover-title {
  font-family: var(--font-chinese-display);
  font-size: clamp(2.8rem, 7vw, 4rem);
  color: var(--text-on-dark);
  text-shadow: 0 0 60px rgba(196,77,52,0.3), 0 0 120px rgba(201,168,76,0.15);
  margin-bottom: 0;
  line-height: 1.1;
}
.cover-title-en {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--accent-gold);
  letter-spacing: 3px;
  margin-bottom: var(--space-md);
  text-transform: uppercase;
}
.cover-divider {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-vermillion), transparent);
  margin: 0 auto var(--space-md);
}
.cover-sub {
  font-family: var(--font-chinese-body);
  font-size: 1.2rem;
  color: var(--text-on-dark);
  font-style: italic;
  margin-bottom: 4px;
}
.cover-sub-en {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: var(--space-lg);
}
.cover-unlocks {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 2px;
  color: var(--accent-gold);
  margin-bottom: var(--space-md);
}
.cover-unlocks span {
  color: var(--text-on-dark);
  font-size: 1.1rem;
}
.btn-enter {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-on-dark);
  background: rgba(196,77,52,0.2);
  border: 1px solid rgba(196,77,52,0.5);
  padding: 14px 40px;
  cursor: pointer;
  transition: all 0.3s;
  margin-bottom: var(--space-md);
}
.btn-enter:hover {
  background: rgba(196,77,52,0.4);
  border-color: var(--accent-vermillion);
  box-shadow: 0 0 30px rgba(196,77,52,0.3);
  transform: scale(1.03);
}

/* ---- HUD ---- */
.game-hud {
  position: fixed;
  inset: 0;
  z-index: 10;
  pointer-events: none;
  padding: var(--space-sm);
  display: none;
}
.game-hud.active { display: block; }
.hud-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-sm);
}
.hud-wave {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 2px;
  color: var(--accent-gold);
  text-shadow: 0 0 10px rgba(201,168,76,0.3);
}
.hud-hp-container {
  display: flex;
  align-items: center;
  gap: 8px;
}
.hud-hp-bar {
  width: 120px;
  height: 6px;
  background: rgba(255,255,255,0.1);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}
.hud-hp-bar::after {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: var(--hp-pct, 100%);
  background: linear-gradient(90deg, #c44d34, #e06040);
  border-radius: 3px;
  transition: width 0.3s;
}
.hud-hp-text {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--text-on-dark);
  min-width: 24px;
}
.hud-timer {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: rgba(232,220,200,0.4);
}
.hud-narrative {
  position: absolute;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  font-family: var(--font-chinese-body);
  font-size: 1rem;
  color: var(--text-on-dark);
  font-style: italic;
  opacity: 0;
  transition: opacity 1s;
  text-shadow: 0 0 20px rgba(196,77,52,0.4);
  max-width: 400px;
}
.hud-narrative.show { opacity: 1; }

/* ---- Ready Go Overlay ---- */
.ready-go-overlay {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.5);
}
.ready-go-overlay.active { display: flex; }
.ready-go-content {
  text-align: center;
}
.ready-go-icon {
  font-size: 4rem;
  margin-bottom: var(--space-sm);
  filter: drop-shadow(0 0 30px rgba(196,77,52,0.5));
  animation: sigil-pulse 1.5s ease-in-out infinite;
}
.ready-go-label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: var(--space-lg);
}
.ready-go-hint {
  font-size: 0.65rem;
  color: rgba(232,220,200,0.3);
  letter-spacing: 1px;
  margin-top: var(--space-sm);
}
.btn-ready-go {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: #fff;
  background: rgba(196,77,52,0.3);
  border: 2px solid var(--accent-vermillion);
  padding: 16px 48px;
  cursor: pointer;
  transition: all 0.3s;
  text-shadow: 0 0 20px rgba(255,255,255,0.3);
  animation: btn-ready-pulse 1s ease-in-out infinite;
}
.btn-ready-go:hover {
  background: rgba(196,77,52,0.6);
  box-shadow: 0 0 40px rgba(196,77,52,0.5);
  transform: scale(1.05);
}
@keyframes btn-ready-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(196,77,52,0.3); }
  50% { box-shadow: 0 0 50px rgba(255,120,30,0.6); }
}

/* ---- Choice Modal ---- */
.choice-modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: none;
  align-items: center;
  justify-content: center;
}
.choice-modal.active { display: flex; }
.choice-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.7);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}
.choice-container {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 560px;
  width: 90%;
}
.choice-prompt {
  font-family: var(--font-chinese-body);
  font-size: 1.1rem;
  color: var(--text-on-dark);
  margin-bottom: var(--space-lg);
  font-style: italic;
}
.choice-cards {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}
.choice-card {
  flex: 1;
  min-width: 200px;
  max-width: 250px;
  padding: var(--space-lg) var(--space-md);
  background: rgba(26,16,10,0.9);
  border: 1px solid rgba(201,168,76,0.2);
  cursor: pointer;
  transition: all 0.3s;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}
.choice-card:hover {
  border-color: var(--accent-gold);
  box-shadow: 0 0 30px rgba(201,168,76,0.15);
  transform: translateY(-2px);
}
.choice-card-emoji {
  font-size: 2rem;
  margin-bottom: 4px;
}
.choice-card-label {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--text-on-dark);
}
.choice-card-desc {
  font-family: var(--font-body);
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ---- Damage Pulse ---- */
.damage-pulse {
  position: fixed;
  inset: 0;
  z-index: 15;
  pointer-events: none;
  background: transparent;
  transition: background 0.1s;
}
.damage-pulse.active {
  background: rgba(196,77,52,0.2);
  transition: background 0s;
}

/* ---- Ending Screen ---- */
.ending-screen {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(13,10,20,0.95);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.ending-screen.active { display: flex; }
.ending-content {
  text-align: center;
  max-width: 520px;
  padding: var(--space-lg);
}
.ending-icon {
  font-size: 4rem;
  margin-bottom: var(--space-sm);
}
.ending-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  color: var(--text-on-dark);
  margin-bottom: 4px;
}
.ending-title-zh {
  font-family: var(--font-chinese-display);
  font-size: 1.1rem;
  color: var(--accent-gold);
  margin-bottom: var(--space-sm);
}
.ending-divider {
  width: 40px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
  margin: 0 auto var(--space-md);
}
.ending-text {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: rgba(232,220,200,0.8);
  line-height: 1.7;
  margin-bottom: var(--space-sm);
}
.ending-quote {
  font-family: var(--font-chinese-body);
  font-size: 1rem;
  color: var(--accent-gold);
  font-style: italic;
  margin-bottom: var(--space-lg);
}
.ending-actions {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}
.btn-retry, .btn-exit {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 12px 28px;
  cursor: pointer;
  transition: all 0.3s;
}
.btn-retry {
  color: var(--text-on-dark);
  background: rgba(196,77,52,0.2);
  border: 1px solid rgba(196,77,52,0.5);
}
.btn-retry:hover {
  background: rgba(196,77,52,0.4);
  border-color: var(--accent-vermillion);
  box-shadow: 0 0 25px rgba(196,77,52,0.25);
}
.btn-exit {
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid rgba(232,220,200,0.15);
}
.btn-exit:hover {
  color: var(--text-on-dark);
  border-color: rgba(232,220,200,0.4);
}

/* ---- Keyboard hint ---- */
.cover-controls-hint {
  font-size: 0.65rem;
  color: rgba(232,220,200,0.25);
  letter-spacing: 1px;
  margin-top: var(--space-xs);
}

/* ---- Mobile adjustments ---- */
@media (max-width: 640px) {
  .choice-cards {
    flex-direction: column;
    align-items: center;
  }
  .choice-card {
    max-width: 100%;
    min-width: unset;
    width: 100%;
  }
  .hud-hp-bar {
    width: 80px;
  }
  .hud-wave {
    font-size: 0.65rem;
    letter-spacing: 1px;
  }
  .cover-title {
    font-size: 2.2rem;
  }
  .btn-enter {
    padding: 12px 30px;
    font-size: 0.85rem;
  }
}