/* ==========================================================================
   Script Trek — night caravan theme
   Palette: midnight indigo sky, warm lantern amber, spice-market card colors
   ========================================================================== */

.script-trek {
  --trek-sky-top:    #0a1220;
  --trek-sky-mid:    #16233d;
  --trek-sky-horizon:#4a3350;
  --trek-dune-far:   #241a2c;
  --trek-dune-near:  #150f1c;
  --trek-lantern:    #e3a857;
  --trek-lantern-lt: #f4d58d;
  --trek-ember:      #c1622d;
  --trek-sand:       #e8dcc3;
  --trek-moon-glow:  #f5efe0;

  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: 0 0 56px;
  background: linear-gradient(
    to bottom,
    var(--trek-sky-top) 0%,
    var(--trek-sky-mid) 55%,
    var(--trek-sky-horizon) 100%
  );
  color: var(--trek-sand);
}

/* -------------------------------------------------------------------------
   Night sky: stars, moon, dunes, caravan
   ------------------------------------------------------------------------- */

.trek-sky {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.trek-stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.4px 1.4px at 8% 18%, #fff, transparent 60%),
    radial-gradient(1px 1px at 22% 8%,  #fff, transparent 60%),
    radial-gradient(1.6px 1.6px at 38% 24%, #fff, transparent 60%),
    radial-gradient(1px 1px at 52% 12%,  #fff, transparent 60%),
    radial-gradient(1.2px 1.2px at 67% 20%, #fff, transparent 60%),
    radial-gradient(1px 1px at 79% 9%,   #fff, transparent 60%),
    radial-gradient(1.4px 1.4px at 91% 22%, #fff, transparent 60%),
    radial-gradient(1px 1px at 14% 34%,  #fff, transparent 60%),
    radial-gradient(1.2px 1.2px at 60% 32%, #fff, transparent 60%),
    radial-gradient(1px 1px at 85% 36%,  #fff, transparent 60%);
  background-repeat: no-repeat;
  opacity: .8;
  animation: trek-twinkle 5s ease-in-out infinite alternate;
}

@keyframes trek-twinkle {
  from { opacity: .5; }
  to   { opacity: .95; }
}

.trek-moon {
  position: absolute;
  top: 8%;
  right: 12%;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--trek-moon-glow);
  box-shadow: 0 0 26px 6px rgba(245, 239, 224, 0.35);
}

.trek-dunes {
  position: absolute;
  left: -5%;
  right: -5%;
  bottom: 0;
  height: 34%;
}

.trek-dunes--far {
  background: var(--trek-dune-far);
  opacity: .8;
  clip-path: polygon(
    0% 100%, 0% 55%, 12% 42%, 28% 58%, 44% 38%,
    60% 55%, 78% 34%, 92% 50%, 100% 40%, 100% 100%
  );
}

.trek-dunes--near {
  background: var(--trek-dune-near);
  clip-path: polygon(
    0% 100%, 0% 72%, 16% 60%, 33% 76%, 50% 58%,
    68% 74%, 84% 56%, 100% 68%, 100% 100%
  );
}

.trek-caravan {
  position: absolute;
  left: -22%;
  bottom: 9%;
  width: 220px;
  height: auto;
  color: var(--trek-dune-near);
  animation: trek-walk 46s linear infinite;
}

.trek-caravan .trek-camel-shape {
  fill: currentColor;
}

.trek-lantern-glow {
  fill: var(--trek-lantern-lt);
  filter: drop-shadow(0 0 4px var(--trek-lantern));
  animation: trek-lantern-sway 3.4s ease-in-out infinite;
  transform-origin: 70px 4px;
}

@keyframes trek-walk {
  from { transform: translateX(0); }
  to   { transform: translateX(560%); }
}

@keyframes trek-lantern-sway {
  0%, 100% { transform: rotate(-6deg); }
  50%      { transform: rotate(6deg); }
}

@media (prefers-reduced-motion: reduce) {
  .trek-caravan,
  .trek-stars,
  .trek-lantern-glow {
    animation: none;
  }
}

/* -------------------------------------------------------------------------
   Intro copy
   ------------------------------------------------------------------------- */

.trek-intro {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0 auto;
  padding: 64px 20px 28px;
  text-align: center;
}

.trek-kicker {
  margin: 0 0 12px;
  font-size: clamp(1.4rem, 3.5vw, 2.2rem); /* 大きく */
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--trek-lantern); /* 提灯アンバーで目立たせる */
  text-transform: uppercase;
}

.trek-intro h1 {
  margin: 0 0 14px;
  font-family: "Shippori Mincho", serif;
  font-weight: 400;
  font-size: clamp(1.8rem, 2.4vw, 1.5rem);
  line-height: 1.5;
  color: var(--trek-moon-glow);
  opacity: .8;
}

.trek-description {
  margin: 0;
  color: var(--trek-sand);
  opacity: .65; /* さらに控えめに */
  font-size: 0.9rem;
  line-height: 1.6;
}

/* -------------------------------------------------------------------------
   Card gallery
   ------------------------------------------------------------------------- */

.trek-gallery {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 16px;
  max-width: 980px;
  margin: 8px auto 0;
  padding: 0 20px;
  min-height: 120px;
}

.trek-card {
  position: relative;
  border-radius: 14px;
  padding: 16px 16px 14px;
  border: 1px solid rgba(244, 213, 141, 0.35);
  background: rgba(21, 15, 28, 0.55);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .45s ease, transform .45s ease, box-shadow .2s ease;
}

.trek-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.trek-card:hover {
  box-shadow: 0 0 0 1px var(--trek-lantern-lt), 0 8px 22px rgba(0, 0, 0, 0.4);
}

.trek-card-region {
  font-size: 0.68rem;
  letter-spacing: .06em;
  color: var(--trek-lantern-lt);
  margin-bottom: 6px;
}

.trek-card-word {
  font-family: "Shippori Mincho", serif;
  font-size: 1.5rem;
  line-height: 1.3;
  color: var(--trek-moon-glow);
  margin-bottom: 6px;
}

.trek-card-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--trek-sand);
  opacity: .8;
  margin-bottom: 8px;
}

.trek-card-type,
.trek-card-place {
  font-size: 0.82rem;
  color: var(--trek-sand);
  opacity: .9;
  margin-bottom: 2px;
}

.trek-card-actions {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}

.trek-card-link {
  font-size: 0.78rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--trek-sky-top);
  background: var(--trek-lantern);
  padding: 6px 10px;
  border-radius: 999px;
  transition: background .15s ease, transform .15s ease;
}

.trek-card-link:hover {
  background: var(--trek-lantern-lt);
  transform: translateY(-1px);
}

/* Spice-market card colorways */

.trek-card--sand {
  background: linear-gradient(160deg, rgba(201, 166, 107, 0.28), rgba(21, 15, 28, 0.6));
}

.trek-card--green {
  background: linear-gradient(160deg, rgba(107, 143, 113, 0.28), rgba(21, 15, 28, 0.6));
}

.trek-card--cream {
  background: linear-gradient(160deg, rgba(237, 227, 203, 0.24), rgba(21, 15, 28, 0.6));
}

.trek-card--yellow {
  background: linear-gradient(160deg, rgba(227, 168, 87, 0.3), rgba(21, 15, 28, 0.6));
}

.trek-card--sage {
  background: linear-gradient(160deg, rgba(156, 175, 136, 0.26), rgba(21, 15, 28, 0.6));
}

.trek-card--terracotta {
  background: linear-gradient(160deg, rgba(193, 98, 45, 0.32), rgba(21, 15, 28, 0.6));
}

.trek-gallery.is-shuffling .trek-card {
  opacity: 0;
  transform: translateY(6px);
}


  /* グラデーション：中心が明るく、外側が少し暗い */
  background: radial-gradient(
    circle at 30% 30%,
    #fff9c4 0%,
    #f4d58d 30%,
    #e3a857 60%,
    #c1622d 100%
  );
  
  /* ゆらめく光 */
  box-shadow: 
    0 0 26px 6px rgba(255, 249, 196, 0.35),
    0 0 50px 12px rgba(244, 213, 141, 0.25),
    0 0 80px 20px rgba(227, 168, 87, 0.15);
  
  /* ゆらめくアニメーション */
  animation: 
    trek-moon-pulse 8s ease-in-out infinite alternate,
    trek-moon-twinkle 12s ease-in-out infinite;
}

/* 月の脈動（光の強さの変化） */
@keyframes trek-moon-pulse {
  0% {
    box-shadow: 
      0 0 18px 4px rgba(255, 249, 196, 0.25),
      0 0 40px 10px rgba(244, 213, 141, 0.18),
      0 0 70px 18px rgba(227, 168, 87, 0.1);
    opacity: 0.95;
  }
  50% {
    box-shadow: 
      0 0 32px 8px rgba(255, 249, 196, 0.45),
      0 0 60px 15px rgba(244, 213, 141, 0.35),
      0 0 100px 25px rgba(227, 168, 87, 0.25);
    opacity: 1;
  }
  100% {
    box-shadow: 
      0 0 20px 5px rgba(255, 249, 196, 0.3),
      0 0 45px 12px rgba(244, 213, 141, 0.22),
      0 0 75px 20px rgba(227, 168, 87, 0.15);
    opacity: 0.98;
  }
}

/* さらにゆっくりと揺れるアニメーション */
@keyframes trek-moon-twinkle {
  0%, 100% {
    transform: scale(1) translateX(0);
  }
  25% {
    transform: scale(1.02) translateX(0.5px);
  }
  50% {
    transform: scale(1) translateX(-0.3px);
  }
  75% {
    transform: scale(1.01) translateX(0.2px);
  }
}

/* 動作軽減設定 */
@media (prefers-reduced-motion: reduce) {
  .trek-moon {
    animation: none;
    box-shadow: 0 0 26px 6px rgba(245, 239, 224, 0.35);
  }
}


/* -------------------------------------------------------------------------
   Trek Again button
   ------------------------------------------------------------------------- */

.trek-again-btn {
  position: relative;
  z-index: 1;
  display: block;
  margin: 28px auto 0;
  padding: 12px 28px;
  border: 1px solid var(--trek-lantern);
  border-radius: 999px;
  background: transparent;
  color: var(--trek-lantern-lt);
  font-size: 0.85rem;
  letter-spacing: .06em;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, box-shadow .2s ease;
}

.trek-again-btn:hover {
  background: var(--trek-lantern);
  color: var(--trek-sky-top);
  box-shadow: 0 0 18px rgba(227, 168, 87, 0.45);
}

/* -------------------------------------------------------------------------
   Responsive
   ------------------------------------------------------------------------- */

@media (max-width: 600px) {
  .trek-caravan { width: 160px; }
  .trek-moon { width: 34px; height: 34px; }
  .trek-intro { padding-top: 48px; }
  .trek-gallery { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
}