/* 魔法クリック時のオーバーレイ・パーティクル（10パターン用） */

.magic-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s;
}

.magic-overlay.active {
  opacity: 1;
  animation: world-shift 3s ease forwards;
}

@keyframes world-shift {
  0% {
    opacity: 0;
    background: radial-gradient(
      ellipse at 50% 50%,
      rgba(100, 50, 200, 0.4) 0%,
      transparent 70%
    );
  }
  20% {
    opacity: 1;
    background: radial-gradient(
      ellipse at 30% 40%,
      rgba(80, 180, 255, 0.3) 0%,
      rgba(200, 80, 255, 0.2) 50%,
      transparent 80%
    );
  }
  50% {
    opacity: 0.8;
    background: radial-gradient(
      ellipse at 70% 60%,
      rgba(255, 200, 80, 0.2) 0%,
      rgba(80, 255, 180, 0.15) 50%,
      transparent 80%
    );
  }
  80% {
    opacity: 0.3;
  }
  100% {
    opacity: 0;
  }
}

.particle {
  position: fixed;
  pointer-events: none;
  z-index: 99;
  border-radius: 50%;
  animation: particle-float var(--dur) ease-out forwards;
}

/* 星パーティクル: 白に近い、ぼやけた柔らかい光 */
.particle.particle--star {
  border-radius: 50%;
  background: radial-gradient(
    circle at 35% 35%,
    rgba(255, 255, 255, 0.95) 0%,
    rgba(252, 253, 255, 0.55) 42%,
    rgba(248, 250, 255, 0.28) 72%,
    rgba(255, 255, 255, 0.08) 100%
  );
  box-shadow:
    0 0 10px rgba(255, 255, 255, 0.55),
    0 0 22px rgba(255, 255, 255, 0.28),
    0 0 38px rgba(255, 255, 255, 0.12);
  filter: blur(1px);
  animation:
    particle-float var(--dur) ease-out var(--float-delay, 0s) forwards,
    starSparkle var(--spark-dur, 1.1s) ease-in-out var(--spark-delay, 0s) infinite;
}

@keyframes starSparkle {
  0%,
  100% {
    filter: blur(1px) brightness(1) drop-shadow(0 0 6px rgba(255, 255, 255, 0.45));
  }
  50% {
    filter: blur(1.4px) brightness(1.12)
      drop-shadow(0 0 14px rgba(255, 255, 255, 0.5))
      drop-shadow(0 0 24px rgba(255, 255, 255, 0.2));
  }
}

/* 落下する白い星粒（絵文字の黄星を使わない） */
.magic-angel-mote {
  position: fixed;
  pointer-events: none;
  z-index: 99;
  border-radius: 50%;
  background: radial-gradient(
    circle at 40% 40%,
    rgba(255, 255, 255, 0.9),
    rgba(255, 255, 255, 0.15)
  );
  filter: blur(1.1px);
  box-shadow: 0 0 14px rgba(255, 255, 255, 0.35);
  animation: featherFall var(--af-dur, 5.5s) ease-in-out forwards;
  opacity: 0;
}

/* 花びら（単一種・散る） */
@keyframes petalScatter {
  0% {
    transform: translate(0, 0) rotate(0deg) scale(0.4);
    opacity: 0;
  }
  12% {
    opacity: 1;
    transform: translate(calc(var(--dx) * 0.15), 8vh) rotate(calc(var(--rot) * 0.2))
      scale(1);
  }
  100% {
    transform: translate(var(--dx), 115vh) rotate(var(--rot)) scale(0.6);
    opacity: 0;
  }
}

/* ダイヤモンド風シェイプのきらめき */
@keyframes diamondFacetShine {
  0%,
  100% {
    opacity: 0.82;
    filter: brightness(1) drop-shadow(0 0 6px rgba(255, 255, 255, 0.85));
  }
  50% {
    opacity: 1;
    filter: brightness(1.4) drop-shadow(0 0 14px rgba(255, 255, 255, 0.95))
      drop-shadow(0 0 26px rgba(220, 235, 255, 0.55));
  }
}

@keyframes particle-float {
  0% {
    transform: translate(0, 0) scale(1);
    opacity: 0.8;
  }
  100% {
    transform: translate(var(--tx), var(--ty)) scale(0);
    opacity: 0;
  }
}

@keyframes bubbleFloat {
  0% {
    transform: translateY(0) scale(1);
    opacity: 0;
  }
  10% {
    opacity: 0.8;
  }
  90% {
    opacity: 0.4;
  }
  100% {
    transform: translateY(-110vh) scale(0.5);
    opacity: 0;
  }
}

@keyframes featherFall {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  100% {
    transform: translateY(110vh) rotate(360deg);
    opacity: 0;
  }
}

@keyframes flowerFall {
  0% {
    transform: translateY(0) rotate(0deg) scale(0);
    opacity: 0;
  }
  20% {
    opacity: 1;
    transform: translateY(10vh) rotate(20deg) scale(1);
  }
  100% {
    transform: translateY(110vh) rotate(180deg) scale(0.5);
    opacity: 0;
  }
}

@keyframes rainbowAppear {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.5);
  }
  30% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.2);
  }
  70% {
    opacity: 0.6;
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -60%) scale(1.5);
  }
}

@keyframes heartFloat {
  0% {
    transform: translateY(0) scale(0);
    opacity: 0;
  }
  20% {
    opacity: 1;
    transform: translateY(-20px) scale(1);
  }
  100% {
    transform: translateY(-90vh) scale(0.8);
    opacity: 0;
  }
}

@keyframes kaleidoSpin {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(var(--r, 0deg)) scale(0);
  }
  20% {
    opacity: 1;
    transform: translate(-50%, -50%) rotate(calc(var(--r, 0deg) + 60deg))
      scale(1.5);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(calc(var(--r, 0deg) + 360deg))
      scale(0);
  }
}

@keyframes diamondGlow {
  0% {
    opacity: 0;
    transform: rotate(45deg) scale(0);
  }
  30% {
    opacity: 1;
    transform: rotate(45deg) scale(1.2);
  }
  70% {
    opacity: 0.9;
  }
  100% {
    opacity: 0;
    transform: rotate(225deg) scale(0.3);
  }
}

.magic-fx-diamond {
  animation:
    diamondGlow var(--dg-dur, 4s) ease-in-out var(--dg-delay, 0s) forwards,
    diamondFacetShine var(--shine-dur, 1s) ease-in-out var(--shine-delay, 0s) infinite;
}

@keyframes oceanWave {
  0% {
    opacity: 0;
  }
  30% {
    opacity: 1;
  }
  70% {
    opacity: 0.7;
  }
  100% {
    opacity: 0;
  }
}

@keyframes waveDrift {
  0%,
  100% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(20px);
  }
}

@keyframes auroraDance {
  0% {
    opacity: 0;
    transform: scaleX(1) translateY(0);
  }
  25% {
    opacity: 1;
    transform: scaleX(1.15) translateY(-4%);
  }
  55% {
    opacity: 0.92;
    transform: scaleX(0.92) translateY(4%);
  }
  100% {
    opacity: 0;
    transform: scaleX(1.08) translateY(-2%);
  }
}