body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, #fff5cc, #f2c94c);
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#container {
  text-align: center;
  padding: 30px;
}

/* おみくじ箱 */
#box {
  width: 220px;
  height: 220px;
  margin: auto;
  background: linear-gradient(145deg, #b71c1c, #e53935);
  border-radius: 16px;
  box-shadow: 0 15px 30px rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  animation: float 2.5s ease-in-out infinite;
}

@keyframes float {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* 結果 */
#result {
  display: none;
  max-width: 600px;
  margin-top: 30px;
  background: rgba(255,255,255,0.95);
  border-radius: 14px;
  padding: 25px;
  animation: open 1s ease forwards;
}

@keyframes open {
  0% { transform: scale(0.7); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

#title {
  font-size: 32px;
  margin-bottom: 15px;
}

#text {
  font-size: 16px;
  line-height: 1.9;
  white-space: pre-wrap;
}

/* キラキラ */
.sparkle {
  position: fixed;
  width: 6px;
  height: 6px;
  background: gold;
  border-radius: 50%;
  pointer-events: none;
  animation: sparkle 1.2s linear forwards;
}

@keyframes sparkle {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: translateY(-80px) scale(0); opacity: 0; }
}

#notice {
  margin-top: 10px;
  font-size: 14px;
  color: #555;
}