/* ---------- imports ---------- */
@import url("https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;700&family=Quicksand:wght@400;500;600;700&display=swap");

/* ---------- reset & base ---------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Quicksand", "Noto Serif JP", sans-serif;
  display: flex;
  min-height: 100vh;
  background: linear-gradient(
    165deg,
    #6c5287 0%,
    #9a6898 25%,
    #d187a2 55%,
    #f1b5a5 85%,
    #fde4b8 100%
  );
  background-attachment: fixed;
  color: #4a2f57;
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== ENHANCED STARS BACKGROUND ===== */
.stars-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
}

/* Layer 1: Tiny twinkling stars */
.stars-bg::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(1px 1px at 10% 10%, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1px 1px at 15% 25%, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1.5px 1.5px at 20% 40%, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1px 1px at 30% 5%, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(2px 2px at 45% 30%, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1px 1px at 55% 60%, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1.5px 1.5px at 70% 15%, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1px 1px at 80% 50%, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(2px 2px at 90% 25%, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1px 1px at 95% 75%, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1.5px 1.5px at 5% 80%, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1px 1px at 25% 90%, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(2px 2px at 50% 85%, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1px 1px at 75% 95%, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1.5px 1.5px at 85% 80%, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1px 1px at 40% 70%, #fff, rgba(0, 0, 0, 0));
  background-size: 200px 200px;
  opacity: 0.8;
  animation: twinkle 4s ease-in-out infinite alternate;
}

/* Layer 2: Medium sparkly stars */
.stars-bg::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(
      2px 2px at 12% 35%,
      rgba(255, 255, 255, 0.9),
      rgba(0, 0, 0, 0)
    ),
    radial-gradient(
      2.5px 2.5px at 38% 55%,
      rgba(255, 255, 255, 0.8),
      rgba(0, 0, 0, 0)
    ),
    radial-gradient(
      2px 2px at 65% 20%,
      rgba(255, 255, 255, 0.9),
      rgba(0, 0, 0, 0)
    ),
    radial-gradient(
      3px 3px at 82% 65%,
      rgba(255, 255, 255, 0.7),
      rgba(0, 0, 0, 0)
    ),
    radial-gradient(
      2px 2px at 18% 75%,
      rgba(255, 255, 255, 0.8),
      rgba(0, 0, 0, 0)
    ),
    radial-gradient(
      2.5px 2.5px at 48% 10%,
      rgba(255, 255, 255, 0.9),
      rgba(0, 0, 0, 0)
    ),
    radial-gradient(
      2px 2px at 92% 40%,
      rgba(255, 255, 255, 0.7),
      rgba(0, 0, 0, 0)
    ),
    radial-gradient(
      3px 3px at 28% 15%,
      rgba(255, 255, 255, 0.6),
      rgba(0, 0, 0, 0)
    ),
    radial-gradient(
      2px 2px at 72% 85%,
      rgba(255, 255, 255, 0.8),
      rgba(0, 0, 0, 0)
    );
  background-size: 300px 300px;
  opacity: 0.6;
  animation: twinkle 6s ease-in-out infinite alternate-reverse;
}

@keyframes twinkle {
  0% {
    opacity: 0.4;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0.6;
  }
}

/* Layer 3: Sparkle particles */
.sparkle-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.sparkle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: white;
  border-radius: 50%;
  box-shadow: 0 0 6px 2px rgba(255, 255, 255, 0.8);
  animation: sparkleFloat linear infinite;
}

.sparkle:nth-child(1) {
  top: 8%;
  left: 15%;
  animation-duration: 8s;
  animation-delay: 0s;
  width: 3px;
  height: 3px;
}
.sparkle:nth-child(2) {
  top: 20%;
  left: 85%;
  animation-duration: 10s;
  animation-delay: 1s;
  width: 5px;
  height: 5px;
}
.sparkle:nth-child(3) {
  top: 35%;
  left: 5%;
  animation-duration: 9s;
  animation-delay: 2s;
  width: 4px;
  height: 4px;
}
.sparkle:nth-child(4) {
  top: 50%;
  left: 92%;
  animation-duration: 11s;
  animation-delay: 0.5s;
  width: 3px;
  height: 3px;
}
.sparkle:nth-child(5) {
  top: 65%;
  left: 10%;
  animation-duration: 7s;
  animation-delay: 1.5s;
  width: 6px;
  height: 6px;
}
.sparkle:nth-child(6) {
  top: 78%;
  left: 80%;
  animation-duration: 9.5s;
  animation-delay: 0.8s;
  width: 4px;
  height: 4px;
}
.sparkle:nth-child(7) {
  top: 12%;
  left: 45%;
  animation-duration: 8.5s;
  animation-delay: 2.5s;
  width: 3px;
  height: 3px;
}
.sparkle:nth-child(8) {
  top: 42%;
  left: 30%;
  animation-duration: 10.5s;
  animation-delay: 1.2s;
  width: 5px;
  height: 5px;
}
.sparkle:nth-child(9) {
  top: 55%;
  left: 60%;
  animation-duration: 7.5s;
  animation-delay: 3s;
  width: 4px;
  height: 4px;
}
.sparkle:nth-child(10) {
  top: 88%;
  left: 25%;
  animation-duration: 9s;
  animation-delay: 0.3s;
  width: 3px;
  height: 3px;
}
.sparkle:nth-child(11) {
  top: 3%;
  left: 70%;
  animation-duration: 11.5s;
  animation-delay: 1.8s;
  width: 5px;
  height: 5px;
}
.sparkle:nth-child(12) {
  top: 30%;
  left: 50%;
  animation-duration: 8.2s;
  animation-delay: 2.2s;
  width: 4px;
  height: 4px;
}
.sparkle:nth-child(13) {
  top: 72%;
  left: 45%;
  animation-duration: 9.8s;
  animation-delay: 0.7s;
  width: 3px;
  height: 3px;
}
.sparkle:nth-child(14) {
  top: 95%;
  left: 70%;
  animation-duration: 10.2s;
  animation-delay: 1.4s;
  width: 6px;
  height: 6px;
}
.sparkle:nth-child(15) {
  top: 45%;
  left: 78%;
  animation-duration: 7.8s;
  animation-delay: 2.8s;
  width: 4px;
  height: 4px;
}

@keyframes sparkleFloat {
  0% {
    transform: translateY(0) translateX(0) scale(1);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  50% {
    transform: translateY(-30px) translateX(15px) scale(1.5);
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-60px) translateX(-10px) scale(0.5);
    opacity: 0;
  }
}

/* ===== ENHANCED ORBS WITH GLOW ===== */
.orb {
  position: absolute;
  border-radius: 50%;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow:
    inset 0 0 20px rgba(255, 255, 255, 0.4),
    0 0 30px rgba(255, 255, 255, 0.2),
    0 5px 25px rgba(0, 0, 0, 0.1);
  animation: floatOrb 12s ease-in-out infinite alternate;
  z-index: 2;
  pointer-events: none;
}

.orb::after {
  content: "";
  position: absolute;
  top: 15%;
  left: 20%;
  width: 25%;
  height: 25%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.8), transparent);
  border-radius: 50%;
  filter: blur(3px);
}

.orb-purple {
  width: 120px;
  height: 120px;
  top: 12%;
  left: 6%;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(200, 160, 220, 0.8),
    rgba(130, 80, 160, 0.4)
  );
  border-color: #d8bff2;
  box-shadow:
    inset 0 0 20px rgba(255, 255, 255, 0.4),
    0 0 60px rgba(160, 120, 180, 0.3);
  animation-delay: 0s;
  animation-duration: 14s;
}
.orb-yellow {
  width: 70px;
  height: 70px;
  top: 32%;
  right: 12%;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(255, 240, 180, 0.8),
    rgba(230, 190, 100, 0.4)
  );
  border-color: #fdecb8;
  box-shadow:
    inset 0 0 20px rgba(255, 255, 255, 0.4),
    0 0 60px rgba(253, 230, 160, 0.3);
  animation-delay: -3s;
  animation-duration: 10s;
}
.orb-blue {
  width: 95px;
  height: 95px;
  bottom: 22%;
  left: 12%;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(180, 230, 250, 0.8),
    rgba(80, 160, 200, 0.4)
  );
  border-color: #b8edf8;
  box-shadow:
    inset 0 0 20px rgba(255, 255, 255, 0.4),
    0 0 60px rgba(140, 220, 240, 0.3);
  animation-delay: -5s;
  animation-duration: 15s;
}
.orb-pink {
  width: 55px;
  height: 55px;
  bottom: 12%;
  right: 22%;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(255, 190, 210, 0.8),
    rgba(220, 110, 150, 0.4)
  );
  border-color: #f8b8cc;
  box-shadow:
    inset 0 0 20px rgba(255, 255, 255, 0.4),
    0 0 60px rgba(240, 150, 180, 0.3);
  animation-delay: -2s;
  animation-duration: 9s;
}
.orb-green {
  width: 65px;
  height: 65px;
  top: 52%;
  left: 8%;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(200, 240, 170, 0.8),
    rgba(130, 200, 100, 0.4)
  );
  border-color: #c8f8b8;
  box-shadow:
    inset 0 0 20px rgba(255, 255, 255, 0.4),
    0 0 60px rgba(170, 230, 140, 0.3);
  animation-delay: -1s;
  animation-duration: 11s;
}
.orb-orange {
  width: 105px;
  height: 105px;
  top: 18%;
  right: 25%;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(255, 210, 160, 0.8),
    rgba(230, 140, 80, 0.4)
  );
  border-color: #ffdcb8;
  box-shadow:
    inset 0 0 20px rgba(255, 255, 255, 0.4),
    0 0 60px rgba(255, 180, 120, 0.3);
  animation-delay: -7s;
  animation-duration: 16s;
}
.orb-purple-small {
  width: 45px;
  height: 45px;
  bottom: 42%;
  right: 5%;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(200, 160, 220, 0.8),
    rgba(130, 80, 160, 0.4)
  );
  border-color: #d8bff2;
  box-shadow:
    inset 0 0 20px rgba(255, 255, 255, 0.4),
    0 0 60px rgba(160, 120, 180, 0.3);
  animation-delay: -6s;
  animation-duration: 8s;
}
.orb-blue-large {
  width: 160px;
  height: 160px;
  top: 2%;
  right: 2%;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(180, 230, 250, 0.6),
    rgba(80, 160, 200, 0.2)
  );
  border-color: #b8edf8;
  box-shadow:
    inset 0 0 30px rgba(255, 255, 255, 0.3),
    0 0 80px rgba(140, 220, 240, 0.2);
  animation-delay: -4s;
  animation-duration: 18s;
}
.orb-pink-top {
  width: 80px;
  height: 80px;
  top: 6%;
  left: 32%;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(255, 190, 210, 0.8),
    rgba(220, 110, 150, 0.4)
  );
  border-color: #f8b8cc;
  box-shadow:
    inset 0 0 20px rgba(255, 255, 255, 0.4),
    0 0 60px rgba(240, 150, 180, 0.3);
  animation-delay: -8s;
  animation-duration: 12s;
}
.orb-yellow-small {
  width: 50px;
  height: 50px;
  bottom: 5%;
  left: 35%;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(255, 240, 180, 0.8),
    rgba(230, 190, 100, 0.4)
  );
  border-color: #fdecb8;
  box-shadow:
    inset 0 0 20px rgba(255, 255, 255, 0.4),
    0 0 60px rgba(253, 230, 160, 0.3);
  animation-delay: -1s;
  animation-duration: 7s;
}

@keyframes floatOrb {
  0% {
    transform: translateY(0px) translateX(0px) scale(1) rotate(0deg);
  }
  33% {
    transform: translateY(-40px) translateX(20px) scale(1.1) rotate(5deg);
  }
  66% {
    transform: translateY(-20px) translateX(-15px) scale(0.95) rotate(-3deg);
  }
  100% {
    transform: translateY(0px) translateX(0px) scale(1) rotate(0deg);
  }
}

/* ===== SHOOTING STARS ===== */
.shooting-star {
  position: fixed;
  width: 100px;
  height: 2px;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0),
    rgba(255, 255, 255, 0.8)
  );
  border-radius: 50%;
  z-index: 1;
  pointer-events: none;
  animation: shootingStar linear infinite;
  opacity: 0;
}

.shooting-star::after {
  content: "";
  position: absolute;
  top: -3px;
  right: 0;
  width: 8px;
  height: 8px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.9), transparent);
  border-radius: 50%;
  filter: blur(2px);
}

.shooting-star:nth-child(1) {
  top: 10%;
  left: 20%;
  animation-duration: 6s;
  animation-delay: 2s;
  width: 80px;
  transform: rotate(-20deg);
}
.shooting-star:nth-child(2) {
  top: 30%;
  left: 60%;
  animation-duration: 8s;
  animation-delay: 5s;
  width: 120px;
  transform: rotate(-35deg);
}
.shooting-star:nth-child(3) {
  top: 50%;
  left: 10%;
  animation-duration: 7s;
  animation-delay: 9s;
  width: 90px;
  transform: rotate(-15deg);
}
.shooting-star:nth-child(4) {
  top: 70%;
  left: 70%;
  animation-duration: 9s;
  animation-delay: 13s;
  width: 110px;
  transform: rotate(-25deg);
}

@keyframes shootingStar {
  0% {
    transform: translateX(0) translateY(0) rotate(var(--rotation, -20deg));
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  80% {
    opacity: 1;
  }
  100% {
    transform: translateX(-300px) translateY(150px)
      rotate(var(--rotation, -20deg));
    opacity: 0;
  }
}

/* ---------- clouds ---------- */
.clouds-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.cloud {
  position: absolute;
  border-radius: 50% 100% 50% 100% / 50% 100% 50% 100%;
  filter: blur(80px);
  animation: driftCloud 50s alternate infinite ease-in-out;
  opacity: 0.6;
}

.cloud-1 {
  width: 1200px;
  height: 150px;
  top: 10%;
  left: -20%;
  background: linear-gradient(
    90deg,
    rgba(220, 130, 170, 0.4),
    rgba(255, 255, 255, 0.1)
  );
  animation-duration: 60s;
}
.cloud-2 {
  width: 1500px;
  height: 200px;
  top: 35%;
  right: -30%;
  background: linear-gradient(
    -90deg,
    rgba(253, 200, 160, 0.35),
    rgba(255, 255, 255, 0.1)
  );
  animation-duration: 75s;
  animation-direction: alternate-reverse;
}
.cloud-3 {
  width: 900px;
  height: 100px;
  top: 60%;
  left: 10%;
  background: linear-gradient(
    90deg,
    rgba(160, 100, 150, 0.3),
    rgba(255, 255, 255, 0.1)
  );
  animation-duration: 55s;
}
.cloud-4 {
  width: 1800px;
  height: 300px;
  bottom: 5%;
  left: -50%;
  background: linear-gradient(
    90deg,
    rgba(240, 150, 160, 0.4),
    rgba(255, 255, 255, 0.1)
  );
  animation-duration: 80s;
}
.cloud-5 {
  width: 1000px;
  height: 120px;
  top: 20%;
  left: 40%;
  background: linear-gradient(
    90deg,
    rgba(140, 110, 170, 0.3),
    rgba(255, 255, 255, 0.1)
  );
  animation-duration: 65s;
  animation-direction: alternate-reverse;
}

@keyframes driftCloud {
  0% {
    transform: translate(0px, 0px) scale(1) rotate(0deg);
  }
  100% {
    transform: translate(150px, -20px) scale(1.05) rotate(1deg);
  }
}

/* ---------- main content ---------- */
.main-content {
  flex: 1;
  position: relative;
  padding: 40px 50px 80px 50px;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  z-index: 3;
  width: calc(100% - 300px);
  max-width: 1400px;
  margin: 0 auto;
}

/* ---------- language controls ---------- */
.lang-controls {
  position: absolute;
  top: 30px;
  right: 50px;
  z-index: 100;
}

.lang-wrapper {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.85),
    rgba(232, 200, 223, 0.6)
  );
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1.5px solid rgba(209, 163, 198, 0.5);
  border-radius: 32px;
  padding: 12px 24px;
  box-shadow:
    0 8px 32px rgba(92, 58, 107, 0.15),
    inset 0 1px 2px rgba(255, 255, 255, 0.6);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.lang-wrapper:hover {
  border-color: rgba(209, 163, 198, 0.8);
  box-shadow:
    0 12px 40px rgba(92, 58, 107, 0.25),
    inset 0 1px 2px rgba(255, 255, 255, 0.6);
  transform: translateY(-2px);
}

.lang-wrapper i {
  color: #8c5a96;
  font-size: 1.2rem;
  flex-shrink: 0;
  pointer-events: none;
  animation: rotate-globe 3s ease-in-out infinite;
}

@keyframes rotate-globe {
  0%,
  100% {
    transform: rotateY(0deg);
  }
  50% {
    transform: rotateY(180deg);
  }
}

.lang-wrapper:hover i {
  animation: rotate-globe 0.6s ease-in-out;
}

.lang-dropdown {
  position: relative;
}

.lang-dropdown-toggle {
  background: transparent;
  border: none;
  color: #5c3a6b;
  font-weight: 700;
  font-family: "Quicksand", sans-serif;
  font-size: 1rem;
  outline: none;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 9px;
  transition: color 0.3s ease;
}

.lang-dropdown-toggle:hover {
  color: #8c5a96;
}
.lang-dropdown-toggle:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.lang-caret {
  font-size: 0.68rem;
  color: #8c5a96;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.lang-dropdown.open .lang-caret {
  transform: rotate(180deg);
}

.lang-dropdown-menu {
  position: absolute;
  top: calc(100% + 14px);
  right: -24px;
  min-width: 170px;
  margin: 0;
  list-style: none;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.95),
    rgba(232, 200, 223, 0.88)
  );
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1.5px solid rgba(209, 163, 198, 0.5);
  border-radius: 18px;
  padding: 8px;
  box-shadow:
    0 12px 32px rgba(92, 58, 107, 0.25),
    inset 0 1px 2px rgba(255, 255, 255, 0.6);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(0.96);
  transform-origin: top right;
  transition:
    opacity 0.28s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.28s cubic-bezier(0.4, 0, 0.2, 1),
    visibility 0.28s;
  z-index: 200;
}

.lang-dropdown.open .lang-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.lang-option {
  padding: 10px 16px;
  border-radius: 12px;
  color: #5c3a6b;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  white-space: nowrap;
  transition:
    background 0.25s ease,
    color 0.25s ease,
    padding-left 0.25s ease;
}

.lang-option:hover {
  background: rgba(140, 90, 150, 0.15);
  color: #7b4c73;
  padding-left: 20px;
}

.lang-option.selected {
  background: rgba(140, 90, 150, 0.18);
  color: #7b4c73;
  font-weight: 700;
}

/* ---------- hero section ---------- */
.hero-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1100px;
  margin-bottom: 50px;
  padding: 20px 0;
  position: relative;
  z-index: 10;
  gap: 40px;
}

.hero-content {
  flex: 1;
  max-width: 500px;
}

.hero-title,
h1.update-title {
  font-family: "Noto Serif JP", serif;
  font-size: 3.8rem;
  font-weight: 700;
  color: #ffffff;
  text-shadow:
    0 0 15px rgba(255, 255, 255, 0.8),
    0 0 30px rgba(209, 135, 162, 0.6),
    0 5px 25px rgba(209, 135, 162, 0.8);
  letter-spacing: 2px;
  line-height: 1.1;
  margin-bottom: 12px;
}

.hero-sub {
  font-family: "Quicksand", sans-serif;
  font-size: 1.15rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
  line-height: 1.6;
  max-width: 400px;
}

.bike-container {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  max-width: 550px;
}

.bike-glow {
  position: absolute;
  width: 90%;
  height: 70%;
  background: radial-gradient(
    ellipse at center,
    rgba(255, 220, 200, 0.3),
    transparent 70%
  );
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  filter: blur(50px);
}

.floating-bike {
  width: 100%;
  height: auto;
  max-width: 800px;
  animation: floatBike 7s cubic-bezier(0.4, 0, 0.2, 1) infinite;
  filter: drop-shadow(0 34px 48px rgba(74, 47, 87, 0.38));
  z-index: 5;
  position: relative;
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.floating-bike:hover {
  transform: scale(1.02);
}

@keyframes floatBike {
  0% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-25px) rotate(-1.5deg);
  }
  100% {
    transform: translateY(0px) rotate(0deg);
  }
}

/* ===== INFO PANEL & CHIPS ===== */
.info-panel {
  width: 100%;
  max-width: 1100px;
  margin-bottom: 45px;
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow:
    0 10px 40px rgba(0, 0, 0, 0.1),
    inset 0 0 0 1px rgba(255, 255, 255, 0.3);
  overflow: hidden;
  transition: box-shadow 0.4s ease;
}

.info-panel:hover {
  box-shadow:
    0 15px 45px rgba(0, 0, 0, 0.13),
    inset 0 0 0 1px rgba(255, 255, 255, 0.4);
}

.info-toggle {
  cursor: pointer;
  padding: 20px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.3s ease;
}

.info-toggle:hover {
  background: rgba(255, 255, 255, 0.15);
}

.info-header {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.info-icon {
  font-size: 1.4rem;
  color: rgba(255, 255, 255, 0.9);
}

.info-title {
  font-family: "Noto Serif JP", serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: #ffffff;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

.info-sub {
  font-family: "Quicksand", sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(255, 255, 255, 0.15);
  padding: 3px 12px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.info-chevron {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.1rem;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
}

.info-chevron.rotated {
  transform: rotate(180deg);
}

.info-content {
  max-height: 0;
  overflow: hidden;
  transition:
    max-height 0.6s cubic-bezier(0.4, 0, 0.2, 1),
    padding 0.4s ease;
  padding: 0 28px;
}

.info-content.open {
  max-height: 900px;
  padding: 0 28px 30px;
}

.info-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
  padding-top: 4px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 6px 16px;
  border-radius: 30px;
  font-family: "Quicksand", sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.chip:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.chip i {
  font-size: 0.75rem;
  opacity: 0.8;
}

.info-body {
  font-family: "Quicksand", sans-serif;
  color: #fff;
  line-height: 1.8;
  font-size: 1.05rem;
  font-weight: 500;
  max-width: 800px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.info-body p {
  margin-bottom: 16px;
}

.info-body p:last-child {
  margin-bottom: 0;
}

.info-body strong {
  color: #ffffff;
  font-weight: 700;
}

/* ===== NAVIGATION GRID ===== */
.nav-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  width: 100%;
  max-width: 1100px;
  margin-bottom: 45px;
  position: relative;
  z-index: 10;
}

.nav-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 24px;
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow:
    0 8px 30px rgba(0, 0, 0, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  text-decoration: none;
  color: #ffffff;
  transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
  position: relative;
  cursor: pointer;
}

.nav-card:hover {
  background: rgba(255, 255, 255, 0.35);
  transform: translateY(-3px);
  box-shadow:
    0 12px 35px rgba(0, 0, 0, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
  border-color: rgba(255, 255, 255, 0.6);
}

.nav-card-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  font-size: 1.2rem;
  color: #fff;
  flex-shrink: 0;
  transition: background 0.3s ease;
}

.nav-card:hover .nav-card-icon {
  background: rgba(255, 255, 255, 0.25);
}

.nav-card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.nav-card-title {
  font-family: "Quicksand", sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.2px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  transition: color 0.3s ease;
}

.nav-card-desc {
  font-family: "Quicksand", sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.3s ease;
}

.nav-card:hover .nav-card-desc {
  color: #ffffff;
}

.nav-card-arrow {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.5);
  transition: all 0.35s ease;
  flex-shrink: 0;
}

.nav-card:hover .nav-card-arrow {
  transform: translateX(6px);
  color: #ffffff;
}

/* ---------- tooltip ---------- */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: rgba(255, 255, 255, 0.95);
  color: #7b4c73;
  padding: 10px 16px;
  border-radius: 14px;
  font-family: "Quicksand", sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: normal;
  max-width: 280px;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.6);
  z-index: 100;
  box-sizing: border-box;
  line-height: 1.4;
}

[data-tooltip]::before {
  content: "";
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  border-width: 6px;
  border-style: solid;
  border-color: rgba(255, 255, 255, 0.95) transparent transparent transparent;
  opacity: 0;
  transition: all 0.3s ease;
}

.nav-card:hover [data-tooltip]::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.nav-card:hover [data-tooltip]::before {
  opacity: 1;
  transform: translateX(-50%) translateY(6px);
}

/* ===== RELEASE CARDS ROW ===== */
.release-row {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  max-width: 1100px;
  margin-bottom: 45px;
  position: relative;
  z-index: 10;
}

.release-card {
  width: 100%;
  padding: 18px 32px;
  background: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow:
    0 8px 30px rgba(0, 0, 0, 0.08),
    inset 0 0 0 1px rgba(255, 255, 255, 0.3);
  transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.release-card:hover {
  transform: translateY(-3px);
  box-shadow:
    0 15px 40px rgba(0, 0, 0, 0.13),
    inset 0 0 0 1px rgba(255, 255, 255, 0.6);
}

.next-release-card {
  border-color: rgba(255, 178, 120, 0.55);
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.35),
    rgba(255, 210, 165, 0.4)
  );
  animation: nextReleaseGlow 3.2s ease-in-out infinite;
}

@keyframes nextReleaseGlow {
  0%,
  100% {
    box-shadow:
      0 10px 40px rgba(0, 0, 0, 0.1),
      inset 0 0 0 1px rgba(255, 255, 255, 0.35),
      0 0 18px rgba(255, 145, 75, 0.25);
  }
  50% {
    box-shadow:
      0 10px 40px rgba(0, 0, 0, 0.1),
      inset 0 0 0 1px rgba(255, 255, 255, 0.35),
      0 0 34px rgba(255, 145, 75, 0.5);
  }
}

.release-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.release-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "Quicksand", sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: #5c3a6b;
  padding: 5px 16px;
  background: rgba(255, 255, 255, 0.25);
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  white-space: nowrap;
}

.release-badge i {
  font-size: 0.75rem;
  opacity: 0.8;
}

.next-badge {
  color: #a5511f;
  background: rgba(255, 178, 120, 0.25);
  border-color: rgba(255, 178, 120, 0.4);
}

.flame-icon {
  color: #ff7a3d;
  filter: drop-shadow(0 0 6px rgba(255, 122, 61, 0.65));
  animation: flameFlicker 1.8s ease-in-out infinite;
  display: inline-block;
}

@keyframes flameFlicker {
  0%,
  100% {
    transform: scale(1) rotate(0deg);
    opacity: 1;
  }
  25% {
    transform: scale(1.08) rotate(-3deg);
    opacity: 0.9;
  }
  50% {
    transform: scale(0.95) rotate(3deg);
    opacity: 1;
  }
  75% {
    transform: scale(1.05) rotate(-2deg);
    opacity: 0.94;
  }
}

.release-divider {
  width: 1px;
  height: 22px;
  background: rgba(255, 255, 255, 0.6);
  flex-shrink: 0;
}

.release-details {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-family: "Quicksand", sans-serif;
  font-size: 0.97rem;
  color: #4a2f57;
  font-weight: 600;
  line-height: 1.5;
}

.release-details strong {
  color: #7b4c73;
  font-weight: 700;
  font-size: 1.05rem;
}

.release-details i {
  color: #8c5a96;
  opacity: 0.8;
  font-size: 0.9rem;
}

.release-sep {
  color: rgba(74, 47, 87, 0.4);
  font-weight: 400;
}

.next-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, #ff9d5c, #ff6f61);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 12px;
  border-radius: 30px;
  box-shadow: 0 4px 14px rgba(255, 110, 70, 0.35);
  animation: pillPulse 2.4s ease-in-out infinite;
}

@keyframes pillPulse {
  0%,
  100% {
    box-shadow: 0 4px 14px rgba(255, 110, 70, 0.35);
  }
  50% {
    box-shadow: 0 4px 24px rgba(255, 110, 70, 0.6);
  }
}

.next-pill i {
  color: #fff;
  opacity: 1;
  font-size: 0.65rem;
}

.next-date {
  color: #7a4a3a;
}

/* ===== GALLERY SECTION ===== */
.gallery-section {
  width: 100%;
  max-width: 1100px;
  margin-bottom: 45px;
  position: relative;
  z-index: 10;
}

.gallery-header {
  text-align: center;
  margin-bottom: 30px;
  color: #fff;
}

.gallery-header h2 {
  font-family: "Noto Serif JP", serif;
  font-size: 2.2rem;
  font-weight: 700;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  margin-bottom: 6px;
}

.gallery-header p {
  font-size: 1rem;
  opacity: 0.85;
  font-weight: 500;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.gallery-col {
  position: relative;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  cursor: pointer;
  aspect-ratio: 3/4;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.gallery-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 40px 20px 20px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.75) 0%, transparent 100%);
  color: white;
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.gallery-item:hover .gallery-overlay {
  transform: translateY(0);
}

.gallery-overlay h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.gallery-overlay p {
  font-size: 0.85rem;
  opacity: 0.85;
  margin: 0;
}

/* ===== LIGHTBOX ===== */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(20px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 20px;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
  position: absolute;
  top: -50px;
  right: 0;
  background: none;
  border: none;
  color: white;
  font-size: 2.5rem;
  cursor: pointer;
  transition: transform 0.2s;
  z-index: 10;
  opacity: 0.8;
}

.lightbox-close:hover {
  transform: scale(1.2);
  opacity: 1;
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  font-size: 2.5rem;
  padding: 20px 15px;
  cursor: pointer;
  transition: all 0.3s;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-50%) scale(1.05);
}

.lightbox-prev {
  left: -80px;
}

.lightbox-next {
  right: -80px;
}

.lightbox-info {
  color: white;
  text-align: center;
  margin-top: 20px;
  padding: 0 20px;
}

.lightbox-info h3 {
  font-size: 1.3rem;
  margin-bottom: 4px;
}

.lightbox-info p {
  opacity: 0.8;
  margin: 4px 0 8px;
}

.lightbox-info #lightboxCounter {
  display: block;
  font-size: 0.85rem;
  opacity: 0.5;
}

/* ---------- Yashiro widget ---------- */
.yashiro-widget {
  position: fixed;
  bottom: 30px;
  right: 40px;
  z-index: 50;
  cursor: pointer;
}

.yashiro-container {
  position: relative;
  width: 140px;
  height: auto;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  z-index: 51;
}

.yashiro-image {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.2))
    drop-shadow(0 0 25px rgba(100, 200, 255, 0.5))
    drop-shadow(0 0 45px rgba(100, 200, 255, 0.25));
  transition:
    transform 0.3s ease,
    filter 0.3s ease;
  animation: yashiro-idle 4s ease-in-out infinite;
}

.yashiro-widget:hover .yashiro-image {
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.2))
    drop-shadow(0 0 30px rgba(100, 200, 255, 0.7))
    drop-shadow(0 0 55px rgba(100, 200, 255, 0.4));
  animation-play-state: paused;
  transform: scale(1.03);
}

@keyframes yashiro-idle {
  0%,
  100% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-5px) scale(1.02);
  }
}

.yashiro-tooltip {
  position: absolute;
  top: -45px;
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  background: rgba(255, 255, 255, 0.95);
  color: #7b4c73;
  padding: 8px 14px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.6);
  z-index: 100;
}

.yashiro-widget:hover .yashiro-tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.news-indicator {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 26px;
  height: 26px;
  background: linear-gradient(135deg, #ff9500, #ffb74d);
  border: 3px solid rgba(255, 255, 255, 0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: white;
  font-weight: bold;
  opacity: 0;
  transform: scale(0);
  transition:
    opacity 0.3s ease,
    transform 0.3s ease;
  box-shadow: 0 0 15px rgba(255, 165, 0, 0.6);
  pointer-events: none;
  z-index: 100;
}

.news-indicator.show {
  opacity: 1;
  transform: scale(1);
  animation: pulse-indicator 1.5s ease-in-out infinite;
}

@keyframes pulse-indicator {
  0%,
  100% {
    box-shadow: 0 0 15px rgba(255, 165, 0, 0.4);
  }
  50% {
    box-shadow: 0 0 30px rgba(255, 165, 0, 0.8);
  }
}

/* ---------- news dialog ---------- */
.news-dialog-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 40;
}

.news-dialog-container {
  position: fixed;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  width: 520px;
  max-height: 70vh;
  bottom: 180px;
  right: 40px;
  opacity: 0;
  transform: scale(0.8) translateY(20px);
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  pointer-events: none;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.3) transparent;
  z-index: 41;
}

.news-dialog-container::-webkit-scrollbar {
  width: 6px;
}
.news-dialog-container::-webkit-scrollbar-track {
  background: transparent;
}
.news-dialog-container::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.3);
  border-radius: 3px;
}

.news-dialog-container.active {
  opacity: 1;
  transform: scale(1) translateY(0);
  pointer-events: all;
}

.news-dialog-inner {
  display: flex;
  gap: 15px;
  margin-bottom: 15px;
  align-items: flex-start;
}

.news-character {
  flex-shrink: 0;
  display: flex;
  justify-content: center;
  align-items: flex-end;
}

.news-yashiro-img {
  width: 120px;
  height: auto;
  filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.2));
  display: block;
}

.news-textbox {
  color: white;
  font-size: 0.98rem;
  line-height: 1.7;
  min-height: 60px;
  max-height: 50vh;
  word-wrap: break-word;
  overflow-wrap: break-word;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

#newsText {
  margin: 0;
  padding: 0;
  font-weight: 500;
}

.news-hint {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 12px;
  font-style: italic;
  text-align: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.news-dialog-container.active .news-hint {
  opacity: 1;
}

/* ---------- footer ---------- */
.footer {
  text-align: center;
  width: 100%;
  max-width: 1100px;
  margin-top: 40px;
  padding: 24px 0 12px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.8;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
  position: relative;
  z-index: 10;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.feedback-footer-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  padding: 10px 24px;
  border-radius: 30px;
  font-family: "Quicksand", sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.feedback-footer-btn:hover {
  background: rgba(255, 255, 255, 0.35);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  .hero-section {
    flex-direction: column;
    text-align: center;
    gap: 30px;
  }
  .hero-content {
    max-width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .hero-sub {
    max-width: 100%;
    text-align: center;
  }
  .bike-container {
    max-width: 450px;
  }
  .main-content {
    padding: 30px 30px 60px 30px;
  }
  .nav-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  }
  .lightbox-prev {
    left: -60px;
  }
  .lightbox-next {
    right: -60px;
  }
}

@media (max-width: 768px) {
  .main-content {
    width: 100%;
    padding: 16px 16px 60px 16px;
  }

  .lang-controls {
    position: relative;
    top: auto;
    right: auto;
    display: flex;
    justify-content: center;
    margin-bottom: 16px;
    width: 100%;
  }

  .lang-wrapper {
    padding: 10px 18px;
    gap: 10px;
    width: auto;
  }

  .lang-wrapper i {
    font-size: 1rem;
  }

  .lang-dropdown-toggle {
    font-size: 0.9rem;
  }

  .lang-dropdown-menu {
    min-width: 150px;
    right: -16px;
  }

  .hero-section {
    margin-bottom: 30px;
    padding: 10px 0;
    gap: 20px;
  }

  .hero-title,
  h1.update-title {
    font-size: 2.4rem;
    text-align: center;
  }

  .hero-sub {
    font-size: 0.95rem;
    text-align: center;
    padding: 0 10px;
  }

  .bike-container {
    max-width: 280px;
  }

  .info-panel {
    margin-bottom: 30px;
    border-radius: 18px;
  }

  .info-toggle {
    padding: 14px 18px;
  }

  .info-title {
    font-size: 1.2rem;
  }

  .info-sub {
    font-size: 0.7rem;
    padding: 2px 10px;
  }

  .info-content.open {
    padding: 0 18px 22px;
  }

  .info-body {
    font-size: 0.92rem;
    line-height: 1.7;
  }

  .info-chips {
    gap: 8px;
  }

  .chip {
    font-size: 0.75rem;
    padding: 4px 14px;
  }

  .nav-grid {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 30px;
  }

  .nav-card {
    padding: 14px 18px;
    gap: 14px;
    border-radius: 16px;
  }

  .nav-card-icon {
    width: 40px;
    height: 40px;
    font-size: 1rem;
    border-radius: 10px;
  }

  .nav-card-title {
    font-size: 0.95rem;
  }

  .nav-card-desc {
    font-size: 0.8rem;
  }

  .release-row {
    gap: 12px;
    margin-bottom: 30px;
  }

  .release-card {
    padding: 14px 18px;
    border-radius: 16px;
  }

  .release-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .release-divider {
    display: none;
  }

  .release-badge {
    font-size: 0.7rem;
    padding: 4px 14px;
  }

  .release-details {
    font-size: 0.85rem;
    gap: 6px;
    flex-wrap: wrap;
  }

  .release-details strong {
    font-size: 0.95rem;
  }

  .next-pill {
    font-size: 0.6rem;
    padding: 3px 10px;
  }

  /* Gallery Mobile */
  .gallery-section {
    margin-bottom: 30px;
  }

  .gallery-header h2 {
    font-size: 1.8rem;
  }

  .gallery-header p {
    font-size: 0.9rem;
  }

  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 14px;
  }

  .gallery-item {
    border-radius: 12px;
  }

  .gallery-overlay h3 {
    font-size: 0.85rem;
  }

  .gallery-overlay p {
    font-size: 0.75rem;
  }

  /* Lightbox Mobile */
  .lightbox {
    padding: 10px;
  }

  .lightbox-content img {
    max-height: 60vh;
  }

  .lightbox-close {
    top: 10px;
    right: 10px;
    font-size: 2rem;
  }

  .lightbox-nav {
    width: 44px;
    height: 44px;
    font-size: 1.5rem;
    padding: 10px;
  }

  .lightbox-prev {
    left: 10px;
  }

  .lightbox-next {
    right: 10px;
  }

  .lightbox-info h3 {
    font-size: 1.1rem;
  }

  .lightbox-info p {
    font-size: 0.9rem;
  }

  /* News Dialog Mobile */
  .news-dialog-container {
    width: calc(100vw - 32px);
    max-width: 400px;
    right: 16px;
    bottom: 120px;
    max-height: 55vh;
    padding: 16px;
    border-radius: 16px;
  }

  .news-yashiro-img {
    width: 70px;
  }

  .news-textbox {
    font-size: 0.88rem;
    min-height: 40px;
  }

  .news-hint {
    font-size: 0.78rem;
  }

  /* Yashiro Widget Mobile */
  .yashiro-widget {
    bottom: 16px;
    right: 16px;
  }

  .yashiro-container {
    width: 80px;
  }

  .yashiro-tooltip {
    display: none;
  }

  .news-indicator {
    width: 22px;
    height: 22px;
    font-size: 11px;
    top: -6px;
    right: -6px;
  }

  /* Footer Mobile */
  .footer {
    font-size: 0.78rem;
    padding: 18px 0 10px;
    line-height: 1.6;
    margin-top: 30px;
  }

  .feedback-footer-btn {
    font-size: 0.8rem;
    padding: 8px 18px;
  }

  /* Hide decorative elements on mobile */
  .sparkle,
  .shooting-star,
  .orb {
    display: none;
  }

  .clouds-container {
    opacity: 0.3;
  }
}

@media (max-width: 480px) {
  .main-content {
    padding: 12px 12px 50px 12px;
  }

  .hero-title,
  h1.update-title {
    font-size: 1.9rem;
  }

  .hero-sub {
    font-size: 0.85rem;
  }

  .bike-container {
    max-width: 200px;
  }

  .info-title {
    font-size: 1rem;
  }

  .info-sub {
    font-size: 0.65rem;
  }

  .info-toggle {
    padding: 12px 14px;
  }

  .info-content.open {
    padding: 0 14px 18px;
  }

  .info-body {
    font-size: 0.85rem;
  }

  .chip {
    font-size: 0.7rem;
    padding: 3px 10px;
    gap: 4px;
  }

  .nav-card {
    padding: 12px 14px;
    gap: 12px;
  }

  .nav-card-icon {
    width: 34px;
    height: 34px;
    font-size: 0.85rem;
  }

  .nav-card-title {
    font-size: 0.85rem;
  }

  .nav-card-desc {
    font-size: 0.7rem;
  }

  .release-card {
    padding: 12px 14px;
  }

  .release-badge {
    font-size: 0.65rem;
    padding: 3px 10px;
  }

  .release-details {
    font-size: 0.78rem;
  }

  .release-details strong {
    font-size: 0.85rem;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .gallery-header h2 {
    font-size: 1.5rem;
  }

  .gallery-item {
    aspect-ratio: 3/4;
  }

  .gallery-overlay {
    padding: 20px 12px 12px;
  }

  .gallery-overlay h3 {
    font-size: 0.75rem;
  }

  .gallery-overlay p {
    font-size: 0.65rem;
  }

  .news-dialog-container {
    padding: 12px;
    bottom: 100px;
  }

  .news-yashiro-img {
    width: 55px;
  }

  .news-textbox {
    font-size: 0.8rem;
  }

  .yashiro-container {
    width: 65px;
  }

  .news-indicator {
    width: 18px;
    height: 18px;
    font-size: 9px;
    top: -4px;
    right: -4px;
  }

  .footer {
    font-size: 0.7rem;
  }

  .feedback-footer-btn {
    font-size: 0.7rem;
    padding: 6px 14px;
    gap: 6px;
  }
}