@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700;900&display=swap');

:root {
  --tanabata-purple: #9c27b0;
  --tanabata-blue: #2196f3;
  --tanabata-pink: #e91e63;
  --tanabata-gold: #ff9800;
  --tanabata-green: #4caf50;
  --tanabata-red: #f44336;
  --tanabata-yellow: #ffeb3b;
  --star-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --festival-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
  --night-sky: linear-gradient(135deg, #0c0c0c 0%, #1a1a2e 50%, #16213e 100%);
}

body {
  font-family: 'Noto Sans JP', sans-serif;
  margin: 0;
  overflow: hidden;
}

/* ARシーンをタイトルより前面に表示 */
a-scene {
  z-index: 1000 !important;
  position: relative;
  pointer-events: none;
}

.event-link {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: block;
  padding: 12px 20px;
  font-family: 'Noto Sans JP', sans-serif;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 25px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  z-index: 999;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  opacity: 0.95;
  backdrop-filter: blur(10px);
  transform: translateY(0);
}

.event-link:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.event-link.hidden {
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
}

.event-text {
  display: block;
  color: #333333;
  font-size: 16px;
  line-height: 18px;
  text-shadow: none;
  font-weight: 700;
  text-align: center;
  margin: 0 0 4px;
  letter-spacing: 0.5px;
}

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

  50% {
    transform: translateY(-3px);
  }
}

.developer-text {
  display: block;
  color: #111111;
  font-size: 12px;
  line-height: 14px;
  text-shadow: none;
  font-weight: 400;
  text-align: center;
  margin: 0;
  opacity: 0.9;
}

.event-title {
  position: fixed;
  top: 60px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 999;
  transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  animation: float-gentle 6s ease-in-out infinite;
  opacity: 0.98;
  backdrop-filter: blur(25px) saturate(1.8);
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.25) 0%,
    rgba(255, 255, 255, 0.15) 50%,
    rgba(156, 39, 176, 0.1) 100%
  );
  border-radius: 32px;
  padding: 20px 28px;
  box-shadow: 0 8px 32px rgba(156, 39, 176, 0.15), 0 4px 16px rgba(0, 0, 0, 0.1),
    0 2px 8px rgba(255, 255, 255, 0.3) inset;
  border: 2px solid rgba(255, 255, 255, 0.3);
  overflow: hidden;
}

.event-title.hidden {
  opacity: 0;
  transform: translateX(-50%) translateY(-20px) scale(0.9);
  pointer-events: none;
}

.event-title::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(255, 255, 255, 0.1) 50%,
    transparent 70%
  );
  transform: rotate(-45deg);
  animation: shimmer 8s infinite linear;
  z-index: 1;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%) translateY(-100%) rotate(-45deg);
  }
  100% {
    transform: translateX(100%) translateY(100%) rotate(-45deg);
  }
}

@keyframes sparkle {
  0%,
  100% {
    transform: scale(1) rotate(0deg);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.3) rotate(180deg);
    opacity: 1;
  }
}

@keyframes float-gentle {
  0%,
  100% {
    transform: translateX(-50%) translateY(0px);
  }
  50% {
    transform: translateX(-50%) translateY(-8px);
  }
}

.event-title img {
  max-width: 480px;
  max-height: 96px;
  width: auto;
  height: auto;
  display: block;
  filter: drop-shadow(0 4px 12px rgba(156, 39, 176, 0.3))
    drop-shadow(0 2px 6px rgba(0, 0, 0, 0.1));
  position: relative;
  z-index: 2;
  transition: filter 0.3s ease;
}

.event-title:hover {
  transform: translateX(-50%) translateY(-4px) scale(1.02);
  box-shadow: 0 12px 40px rgba(156, 39, 176, 0.2),
    0 6px 24px rgba(0, 0, 0, 0.15), 0 3px 12px rgba(255, 255, 255, 0.4) inset;
}

.event-title:hover img {
  filter: drop-shadow(0 6px 16px rgba(156, 39, 176, 0.4))
    drop-shadow(0 3px 8px rgba(0, 0, 0, 0.15));
}

.tutorial-ui {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1001;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  opacity: 1;
  transition: all 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}


.tutorial-ui-content {
  background: var(--festival-gradient);
  border-radius: 25px;
  padding: 20px 25px;
  text-align: center;
  box-shadow: 0 8px 32px rgba(233, 30, 99, 0.3),
    0 4px 16px rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: none;
  width: 90vw;
  max-width: 350px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0.95;
}

.tutorial-ui-content:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 40px rgba(233, 30, 99, 0.4),
    0 6px 20px rgba(255, 255, 255, 0.2);
}

.tutorial-close-button {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 18px;
  background: var(--festival-gradient);
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.8);
  cursor: pointer;
  z-index: 1002;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  backdrop-filter: blur(15px) saturate(1.8);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3), 
              0 2px 8px rgba(255, 255, 255, 0.1) inset,
              0 0 0 1px rgba(255, 255, 255, 0.2);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

.tutorial-close-button:hover {
  background: var(--festival-gradient);
  transform: scale(1.05) translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4), 
              0 3px 12px rgba(255, 255, 255, 0.15) inset,
              0 0 0 1px rgba(255, 255, 255, 0.4);
  border-color: rgba(255, 255, 255, 1);
}

.tutorial-close-button:active {
  transform: scale(0.98);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5), 
              0 1px 4px rgba(255, 255, 255, 0.1) inset;
  background: var(--festival-gradient);
}

.tutorial-marker {
  display: block;
  width: 200px;
  height: 200px;
  max-width: 60vw;
  max-height: 60vw;
  margin: 0 auto 80px;
  position: relative;
  transform-style: preserve-3d;
  perspective: 1000px;
  flex-shrink: 0;
}

.tutorial-ar-code {
  position: relative;
  width: 100%;
  height: 100%;
  background: transparent;
  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2), 0 5px 15px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.tutorial-ar-code img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.stand-up-animation {
  transform-origin: bottom center;
  transform: rotateX(85deg) translateX(-12px) translateY(-100px);
  opacity: 0.3;
  animation: standUpForward 2.5s cubic-bezier(0.175, 0.885, 0.32, 1.275)
    forwards;
  animation-delay: 0.5s;
  animation-iteration-count: 2;
}

@keyframes standUpForward {
  0% {
    transform: rotateX(85deg) translateX(-12px) translateY(-100px);
    opacity: 0.3;
  }

  60% {
    transform: rotateX(0deg) translateX(0) translateY(0);
    opacity: 1;
  }

  100% {
    transform: rotateX(0deg) translateX(0) translateY(0);
    opacity: 1;
  }
}

.tutorial-navigation-text {
  display: block;
  width: 100%;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.tutorial-navigation-text p {
  margin: 0;
  padding: 15px;
  text-align: center;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
  color: #ffffff;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
  letter-spacing: 0.5px;
  line-height: 1.4;
  background: transparent;
  border-radius: 12px;
  backdrop-filter: none;
  border: none;
}

.tutorial-navigation-text.portrait p {
  font-size: clamp(16px, 5vw, 24px);
}

.tutorial-navigation-text.landscape p {
  font-size: clamp(14px, 3vh, 20px);
}

@keyframes twinkle {
  0%,
  100% {
    opacity: 1;
    transform: translateX(-50%) scale(1);
  }

  50% {
    opacity: 0.5;
    transform: translateX(-50%) scale(1.2);
  }
}

.tutorial-ui-content {
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* VRモードへ切り替えるボタンを非表示にしておく */
.a-enter-vr {
  display: none !important;
}

/* Mobile optimizations */
@media (max-width: 768px) {
  .tutorial-ui-content {
    padding: 20px 15px;
    border-radius: 20px;
    width: 95vw;
    max-width: 350px;
  }

  .tutorial-marker {
    width: 180px;
    height: 180px;
    margin: 0 auto 60px;
  }

  .tutorial-navigation-text {
    margin: 5px auto 0;
  }

  .tutorial-navigation-text p {
    padding: 12px;
  }

  .event-link {
    bottom: 15px;
    right: 15px;
    padding: 10px 16px;
  }

  .event-text {
    font-size: 14px;
  }

  .event-title {
    top: 45px;
    padding: 16px 20px;
    border-radius: 28px;
    backdrop-filter: blur(20px) saturate(1.6);
  }

  .event-title img {
    max-width: 360px;
    max-height: 72px;
  }

  .event-title::after {
    font-size: 16px;
    top: -6px;
    right: -6px;
  }

  .event-title:hover {
    transform: translateX(-50%) translateY(-2px) scale(1.01);
  }

  .tutorial-close-button {
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    font-size: 16px;
    border-width: 1.5px;
  }
}

@keyframes gentle-shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-2px);
  }
  75% {
    transform: translateX(2px);
  }
}