/* Echo Carousel (poetry section) */
/* Safe-scoped: affects only .poetry_page */

.poetry_page .echo_carousel{
  position: relative;
  margin-top: 12px;
  padding: 10px 56px; /* room for nav buttons */
  user-select: none;
  -webkit-user-select: none;
  touch-action: pan-y;

  /* prevent horizontal page scroll caused by translated slides */
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  overflow-x: hidden;
  overflow-y: visible;
}

.poetry_page .echo_track{
  position: relative;
  height: 210px;
  overflow: visible; /* allow shadows */
  contain: layout paint; /* keep overflow impact local */
}

.poetry_page .echo_slide{
  --x: 0px;
  --s: 1;
  --o: 1;
  --z: 1;
  --pe: auto;

  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) translateX(var(--x)) scale(var(--s));
  opacity: var(--o);
  z-index: var(--z);
  pointer-events: var(--pe);

  width: min(420px, 78vw);
  border-radius: 18px;
  padding: 0;
  text-decoration: none;
  color: inherit;

  background: rgba(255,255,255,0.86);
  isolation: isolate;
  border: 1px solid rgba(0,0,0,0.10);
  box-shadow: 0 14px 34px rgba(0,0,0,0.12);

  transition: transform 360ms cubic-bezier(.2,.75,.2,1), opacity 240ms ease;
  will-change: transform, opacity;
}

.poetry_page .echo_slide:hover{
  box-shadow: 0 18px 40px rgba(0,0,0,0.16);
}

.poetry_page .echo_slide.is_active{
  border-color: rgba(0,0,0,0.18);
  background: rgba(255,255,255,0.98);
}

.poetry_page .echo_slide:not(.is_active){
  background: rgba(255,255,255,0.78);
}

.poetry_page .echo_slide_inner{
  padding: 16px 18px 14px;
}

.poetry_page .echo_slide .echo_no{
  font-size: 22px;
  font-weight: 900;
  letter-spacing: .4px;
  margin-bottom: 8px;
}

.poetry_page .echo_slide .echo_meta{
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 13px;
  opacity: 0.75;
}

/* Nav buttons */
.poetry_page .echo_nav{
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,0.12);
  background: rgba(255,255,255,0.86);
  isolation: isolate;
  box-shadow: 0 10px 22px rgba(0,0,0,0.10);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  z-index: 120;
}

.poetry_page .echo_nav:hover{
  border-color: rgba(0,0,0,0.18);
  box-shadow: 0 14px 28px rgba(0,0,0,0.14);
}

.poetry_page .echo_nav span{
  font-size: 28px;
  line-height: 1;
  opacity: 0.85;
}

.poetry_page .echo_prev{ left: 10px; }
.poetry_page .echo_next{ right: 10px; }

/* Dark mode support */
.poetry_page.dark_mode .echo_slide{
  background: rgba(20,20,20,0.82);
  border-color: rgba(255,255,255,0.14);
  box-shadow: 0 16px 36px rgba(0,0,0,0.55);
}
.poetry_page.dark_mode .echo_slide.is_active{
  border-color: rgba(255,255,255,0.22);
  background: rgba(20,20,20,0.94);
}
.poetry_page.dark_mode .echo_slide:not(.is_active){
  background: rgba(20,20,20,0.74);
}
.poetry_page.dark_mode .echo_nav{
  background: rgba(25,25,25,0.92);
  border-color: rgba(255,255,255,0.14);
  box-shadow: 0 12px 28px rgba(0,0,0,0.60);
}
.poetry_page.dark_mode .echo_nav span{ opacity: 0.95; }

/* Responsive */
@media (max-width: 720px){
  .poetry_page .echo_carousel{
    padding: 8px 46px;
    max-width: 100%;
  }
  .poetry_page .echo_track{
    height: 190px;
  }
  .poetry_page .echo_slide{
    width: min(380px, 84vw);
  }
  .poetry_page .echo_slide .echo_no{
    font-size: 20px;
  }
  .poetry_page .echo_nav{
    width: 40px;
    height: 40px;
  }
  .poetry_page .echo_nav span{
    font-size: 26px;
  }
}