/* =============================================
   ILLUSTRATIONS - CSS Art & Scene Styles
   ============================================= */

/* --- Base scene container --- */
.scene {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: background var(--transition-slow);
}

.scene-element {
  position: absolute;
  transition: all var(--transition-normal);
  animation: fadeIn var(--transition-normal) both;
}

.scene-element:nth-child(1) { animation-delay: 0s; }
.scene-element:nth-child(2) { animation-delay: 0.1s; }
.scene-element:nth-child(3) { animation-delay: 0.15s; }
.scene-element:nth-child(4) { animation-delay: 0.2s; }
.scene-element:nth-child(5) { animation-delay: 0.25s; }
.scene-element:nth-child(6) { animation-delay: 0.3s; }
.scene-element:nth-child(7) { animation-delay: 0.35s; }
.scene-element:nth-child(8) { animation-delay: 0.4s; }

/* --- Emoji elements --- */
.emoji-element {
  font-size: 3rem;
  line-height: 1;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

.emoji-element.small { font-size: 1.8rem; }
.emoji-element.medium { font-size: 3rem; }
.emoji-element.large { font-size: 4.5rem; }
.emoji-element.xlarge { font-size: 6rem; }

/* --- Floating animation --- */
.float-anim {
  animation: float 3s ease-in-out infinite;
}

.float-anim:nth-child(even) {
  animation-delay: -1.5s;
}

/* --- Sparkle animation --- */
.sparkle-anim {
  animation: sparkle 2s ease-in-out infinite;
}

.sparkle-anim:nth-child(2n) { animation-delay: -0.7s; }
.sparkle-anim:nth-child(3n) { animation-delay: -1.4s; }

/* --- Scene Backgrounds --- */

/* Night sky with stars */
.bg-night-sky {
  background: linear-gradient(180deg, #0a0a2e 0%, #16213e 50%, #1a1a40 100%);
}

/* Forest */
.bg-forest {
  background: linear-gradient(180deg, #0a2a1a 0%, #134e2a 60%, #1a5e35 100%);
}

/* Crystal mountain */
.bg-crystal {
  background: linear-gradient(180deg, #1a1a3e 0%, #2d3e6e 50%, #4a5e8e 100%);
}

/* Dark castle */
.bg-dark-castle {
  background: linear-gradient(180deg, #0a0a15 0%, #1a1a2a 60%, #2a2030 100%);
}

/* Celebration / golden */
.bg-celebration {
  background: linear-gradient(180deg, #3a2a10 0%, #5a4a20 40%, #7a6a30 100%);
}

/* Dawn */
.bg-dawn {
  background: linear-gradient(180deg, #1a1040 0%, #4a2060 30%, #a05060 60%, #e0a050 100%);
}

/* Bridge / river */
.bg-bridge {
  background: linear-gradient(180deg, #0a1a2a 0%, #1a3a4a 60%, #2a5a6a 100%);
}

/* Bedroom */
.bg-bedroom {
  background: linear-gradient(180deg, #1a1530 0%, #2a2548 80%, #352d5a 100%);
}

/* Cave */
.bg-cave {
  background: linear-gradient(180deg, #0a0a12 0%, #1a1a25 50%, #252535 100%);
}

/* Flying / clouds */
.bg-flying {
  background: linear-gradient(180deg, #2a4a8a 0%, #5a8aba 40%, #8abaea 80%, #a0d0f0 100%);
}

/* --- CSS Art Components --- */

/* Stars */
.css-star {
  width: 4px;
  height: 4px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 0 6px 2px rgba(255, 255, 255, 0.4);
}

.css-star.bright {
  width: 6px;
  height: 6px;
  box-shadow: 0 0 10px 3px rgba(255, 215, 0, 0.5);
  background: var(--color-gold);
}

.css-star.dim {
  opacity: 0.3;
  animation: sparkle 4s ease-in-out infinite;
}

/* Castle silhouette */
.css-castle {
  position: relative;
  width: 120px;
  height: 90px;
}

.css-castle .tower {
  position: absolute;
  bottom: 0;
  background: #1a1030;
  border-radius: 4px 4px 0 0;
}

.css-castle .tower-left {
  left: 0;
  width: 25px;
  height: 70px;
}

.css-castle .tower-right {
  right: 0;
  width: 25px;
  height: 70px;
}

.css-castle .tower-center {
  left: 35px;
  width: 50px;
  height: 55px;
}

.css-castle .spire {
  position: absolute;
  width: 0;
  height: 0;
  border-left: 15px solid transparent;
  border-right: 15px solid transparent;
  border-bottom: 25px solid #2a1a40;
}

.css-castle .spire-left {
  left: -2px;
  top: -22px;
}

.css-castle .spire-right {
  right: -2px;
  top: -22px;
}

.css-castle .spire-center {
  left: 10px;
  top: -20px;
  border-left-width: 25px;
  border-right-width: 25px;
  border-bottom-width: 30px;
}

.css-castle .window {
  position: absolute;
  width: 8px;
  height: 12px;
  background: rgba(255, 215, 0, 0.4);
  border-radius: 4px 4px 0 0;
  box-shadow: 0 0 8px rgba(255, 215, 0, 0.3);
}

/* Bridge */
.css-bridge {
  position: relative;
  width: 200px;
  height: 40px;
}

.css-bridge .bridge-deck {
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 12px;
  background: linear-gradient(90deg, #5a3a1a, #8a6a3a, #5a3a1a);
  border-radius: 4px;
}

.css-bridge .bridge-rail {
  position: absolute;
  bottom: 12px;
  width: 100%;
  height: 20px;
  border: 2px solid #8a6a3a;
  border-bottom: none;
  border-radius: 8px 8px 0 0;
}

/* Water / river effect */
.css-river {
  width: 100%;
  height: 30px;
  background: linear-gradient(90deg,
    rgba(52, 152, 219, 0.3),
    rgba(52, 152, 219, 0.5),
    rgba(52, 152, 219, 0.3));
  border-radius: 50%;
  animation: waterFlow 3s ease-in-out infinite;
}

@keyframes waterFlow {
  0%, 100% { transform: scaleX(1); opacity: 0.6; }
  50% { transform: scaleX(1.05); opacity: 0.8; }
}

/* Floating numbers for puzzle scenes */
.floating-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-gold);
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
  animation: float 2.5s ease-in-out infinite;
}

.floating-number:nth-child(odd) {
  animation-delay: -1.2s;
  color: var(--color-primary-light);
  text-shadow: 0 0 10px rgba(168, 85, 247, 0.5);
}

/* Crystal elements */
.css-crystal {
  width: 20px;
  height: 35px;
  background: linear-gradient(135deg, rgba(100, 200, 255, 0.6), rgba(180, 120, 255, 0.4));
  clip-path: polygon(50% 0%, 100% 35%, 85% 100%, 15% 100%, 0% 35%);
  animation: sparkle 3s ease-in-out infinite;
}

.css-crystal:nth-child(even) {
  background: linear-gradient(135deg, rgba(255, 150, 200, 0.5), rgba(255, 200, 100, 0.4));
  animation-delay: -1.5s;
}

/* Glow orb for magical effects */
.glow-orb {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,215,0,0.8) 0%, rgba(255,215,0,0) 70%);
  animation: pulse 2s ease-in-out infinite;
}

/* Tree silhouettes */
.css-tree {
  position: relative;
}

.css-tree .trunk {
  width: 8px;
  height: 20px;
  background: #3a2a15;
  margin: 0 auto;
}

.css-tree .foliage {
  width: 0;
  height: 0;
  border-left: 20px solid transparent;
  border-right: 20px solid transparent;
  border-bottom: 35px solid #1a5e2a;
}

.css-tree.pine .foliage {
  border-bottom-color: #0a4a1a;
}

/* --- Confetti burst for correct answers --- */
.confetti-burst {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.confetti-particle {
  position: absolute;
  font-size: 1.5rem;
  animation: confettiExplode 1s ease-out forwards;
}

@keyframes confettiExplode {
  0% {
    opacity: 1;
    transform: translate(0, 0) scale(0.5) rotate(0deg);
  }
  100% {
    opacity: 0;
    transform: translate(var(--tx, 50px), var(--ty, -80px)) scale(1) rotate(var(--tr, 360deg));
  }
}

/* --- Scene transition --- */
.scene-enter {
  animation: sceneEnter var(--transition-slow) ease-out;
}

@keyframes sceneEnter {
  from {
    opacity: 0;
    transform: scale(1.05);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}