/* Concert cards + horizontal slider */

.tsu-slider {
  --tsu-gold: #b08d57;
  --tsu-navy: #1b2740;
  --tsu-ink: #1c2333;
  --tsu-muted: #6b7280;
  --tsu-paper: #fffaf4;
  --tsu-card: #ffffff;
  --tsu-gap: 18px;
  --tsu-card-w: min(280px, 78vw);
  margin: 1.6rem 0 2.4rem;
}

.tsu-slider__stage {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
}

.tsu-slider__viewport {
  min-width: 0;
}

.tsu-slider__track {
  display: flex;
  gap: var(--tsu-gap);
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 8px 4px 20px;
  scrollbar-width: none;
  -ms-overflow-style: none;
  outline: none;
}

.tsu-slider__track::-webkit-scrollbar {
  display: none;
}

.tsu-slider__card {
  flex: 0 0 var(--tsu-card-w);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  min-height: 360px;
  background: var(--tsu-card);
  border-radius: 18px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 10px 28px rgba(27, 39, 64, 0.08);
  border: 1px solid rgba(176, 141, 87, 0.18);
  transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.tsu-slider__card:hover,
.tsu-slider__card:focus-visible {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(27, 39, 64, 0.16);
  color: inherit;
  text-decoration: none;
}

.tsu-slider__media {
  position: relative;
  height: 148px;
  background-color: var(--tsu-navy);
  background-image:
    linear-gradient(160deg, rgba(176, 141, 87, 0.28), transparent 55%),
    linear-gradient(180deg, #243356 0%, #141c2e 100%);
  background-size: cover;
  background-position: center;
  color: #fff;
}

.tsu-slider__card--image .tsu-slider__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(20, 28, 46, 0.15) 0%, rgba(20, 28, 46, 0.72) 100%);
}

.tsu-slider__date {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 16px 18px 14px;
}

.tsu-slider__year {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  opacity: 0.82;
}

.tsu-slider__day {
  font-family: "Iowan Old Style", "Palatino Linotype", "YuMincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-size: 3.1rem;
  line-height: 0.9;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin: 2px 0 4px;
}

.tsu-slider__month {
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  color: #e8d5b0;
}

.tsu-slider__body {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px 18px;
  flex: 1;
  background: linear-gradient(180deg, var(--tsu-paper), #fff 40%);
}

.tsu-slider__title {
  margin: 0 0 4px;
  font-family: "Iowan Old Style", "Palatino Linotype", "YuMincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-size: 1.08rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--tsu-ink);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tsu-slider__meta {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--tsu-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tsu-slider__venue::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 8px;
  margin-bottom: 1px;
  border-radius: 50%;
  background: var(--tsu-gold);
  vertical-align: middle;
}

.tsu-slider__role {
  margin: 2px 0 0;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: #8a6b3a;
}

.tsu-slider__more {
  margin-top: auto;
  padding-top: 12px;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--tsu-navy);
  border-top: 1px solid rgba(176, 141, 87, 0.22);
}

.tsu-slider__more::after {
  content: " →";
}

.tsu-slider__nav {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(176, 141, 87, 0.35);
  border-radius: 50%;
  background: #fff;
  color: var(--tsu-navy);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(27, 39, 64, 0.08);
  transition: background 0.2s ease, opacity 0.2s ease, transform 0.2s ease;
}

.tsu-slider__nav:hover:not(:disabled) {
  background: var(--tsu-navy);
  color: #fff;
  transform: scale(1.05);
}

.tsu-slider__nav:disabled {
  opacity: 0.28;
  cursor: default;
  box-shadow: none;
}

.tsu-slider.is-single .tsu-slider__nav {
  visibility: hidden;
}

.tsu-slider__dots {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 12px;
  margin-top: 2px;
}

.tsu-slider__dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: #d7d0c5;
  cursor: pointer;
}

.tsu-slider__dot.is-active {
  background: var(--tsu-gold);
  transform: scale(1.2);
}

.tsu-slider.is-single .tsu-slider__dots {
  display: none;
}

@media (max-width: 768px) {
  .tsu-slider__stage {
    grid-template-columns: minmax(0, 1fr);
  }

  .tsu-slider__nav {
    display: none;
  }

  .tsu-slider__card:hover,
  .tsu-slider__card:focus-visible {
    transform: none;
  }

  .tsu-slider__card {
    min-height: 340px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tsu-slider__track,
  .tsu-slider__card {
    scroll-behavior: auto;
    transition: none;
  }
}