body {
  font-family: 'Segoe UI', 'Hiragino Kaku Gothic ProN', Meiryo, sans-serif;
  margin: 0;
  padding: 0;
  background: #1a237e; /* 濃紺 */
  color: #333;
}
main {
  max-width: 420px;
  margin: 2em auto;
  padding: 2em 1em 2.5em 1em;
  background: #f9f6ef; /* 生成り */
  border-radius: 14px;
  box-shadow: 0 4px 16px rgba(26,35,126,0.10), 0 1.5px 8px rgba(0,0,0,0.08);
  text-align: center;
  border: 2.5px solid #b71c1c; /* 紅色 */
  position: relative;
  z-index: 2;
}
/* 提灯装飾 */
.lanterns {
  display: flex;
  justify-content: center;
  gap: 18px;
  margin: 32px 0 0 0;
  height: 54px;
  z-index: 2;
  pointer-events: none;
}
.lanterns::before, .lanterns::after {
  content: '';
  display: block;
  width: 18px;
}
.lanterns span {
  display: inline-block;
  width: 38px;
  height: 38px;
  background: radial-gradient(ellipse at 50% 60%, #fff8e1 55%, #ff9800 100%);
  border: 2.5px solid #b71c1c;
  border-radius: 50%;
  position: relative;
  box-shadow: 0 0 24px 8px #ff980055, 0 2px 8px #bdbdbd33;
  animation: lantern-glow 2.2s ease-in-out infinite alternate;
}
@keyframes lantern-glow {
  0% { box-shadow: 0 0 18px 4px #ff980033, 0 2px 8px #bdbdbd33; filter: brightness(1); }
  100% { box-shadow: 0 0 36px 16px #ff980099, 0 2px 8px #bdbdbd33; filter: brightness(1.18); }
}
.lanterns span::before {
  content: '';
  display: block;
  position: absolute;
  left: 50%;
  top: -10px;
  width: 8px;
  height: 10px;
  background: #b71c1c;
  border-radius: 4px 4px 2px 2px;
  transform: translateX(-50%);
}
.lanterns span::after {
  content: '';
  display: block;
  position: absolute;
  left: 50%;
  bottom: -10px;
  width: 6px;
  height: 10px;
  background: #ffd700;
  border-radius: 3px;
  transform: translateX(-50%);
}
.lanterns span.red {
  background: radial-gradient(ellipse at 50% 60%, #fff8e1 55%, #e57373 100%);
  border-color: #b71c1c;
}
.lanterns span.blue {
  background: radial-gradient(ellipse at 50% 60%, #fff8e1 55%, #64b5f6 100%);
  border-color: #1565c0;
}
.lanterns span.green {
  background: radial-gradient(ellipse at 50% 60%, #fff8e1 55%, #81c784 100%);
  border-color: #33691e;
}
.lanterns span.gold {
  background: radial-gradient(ellipse at 50% 60%, #fffde7 55%, #ffd700 100%);
  border-color: #bfa100;
}
h1 {
  font-size: 1.8em;
  margin-bottom: 1em;
  color: #b71c1c; /* 紅色 */
  letter-spacing: 0.08em;
  text-shadow: 1px 1px 0 #fffde7, 0 2px 8px #b71c1c22;
  border-bottom: 2px solid #ffd700; /* 金色 */
  padding-bottom: 0.3em;
  background: none;
  border-radius: 0;
}
.status {
  font-size: 1.1em;
  font-weight: bold;
  margin: 1.5em 0;
  padding: 1.2em 1em;
  border-radius: 12px;
  background: linear-gradient(180deg, #f5f5f5 80%, #ede0c8 100%);
  text-align: left;
  box-shadow: 0 2px 12px #bdbdbd33;
  border: 2.5px solid #bfa100;
  position: relative;
  z-index: 2;
}
.status.cancelled {
  background: linear-gradient(180deg, #fbe9e7 80%, #f5c6c6 100%);
  color: #b71c1c;
  border: 2.5px solid #b71c1c;
}
.status.postponed {
  background: linear-gradient(180deg, #fffde7 80%, #fff8c6 100%);
  color: #bfa100;
  border: 2.5px solid #bfa100;
}
.status.held {
  background: linear-gradient(180deg, #e8f5e9 80%, #c8e6c9 100%);
  color: #33691e;
  border: 2.5px solid #33691e;
}
#volunteer-info {
  margin-top: 1.5em;
  padding: 1em;
  background: #e3e0cb;
  border: 1.5px dashed #bfa100;
  border-radius: 8px;
  color: #5d4037;
  font-weight: bold;
  box-shadow: 0 2px 8px #bdbdbd33;
}
#volunteer-info:before {
  content: "\1F9F9  "; /* ほうきの絵文字 */
}
@media (max-width: 600px) {
  main {
    padding: 1em 0.5em 1.5em 0.5em;
  }
  h1 {
    font-size: 1.2em;
  }
  .status {
    font-size: 0.98em;
    padding: 1em 0.7em 1em 0.7em;
  }
  #volunteer-info {
    font-size: 0.95em;
  }
}

/* 花火アニメーション用のスタイル */
.fireworks {
  position: fixed;
  left: 0; top: 0; width: 100vw; height: 100vh;
  pointer-events: none;
  z-index: 0;
}