/* ============================================
   Components — UIパーツのスタイリング
   ============================================ */

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: 12px 36px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 3px;
  text-transform: uppercase;
  border: 2px solid var(--color-accent);
  color: var(--color-text);
  background: transparent;
  transition: background var(--transition-fast),
              box-shadow var(--transition-fast),
              transform var(--transition-fast);
  cursor: pointer;
}

.btn:hover {
  background: var(--color-accent);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn--filled {
  background: var(--color-accent);
}

.btn--filled:hover {
  background: var(--color-accent-glow);
}

/* ---- Category Tags ---- */
.tag {
  display: inline-block;
  padding: 3px 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: var(--color-text);
}

.tag--live {
  background: #9c27b0;
}

.tag--release {
  background: #2196f3;
}

.tag--media {
  background: #ff9800;
}

/* ---- News Items ---- */
.news-list {
  max-width: 800px;
  margin: 0 auto;
}

.news-item {
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast);
}

.news-item__header {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px 0;
  cursor: pointer;
  position: relative;
}

.news-item__header::after {
  content: '';
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--color-text-sub);
  border-bottom: 2px solid var(--color-text-sub);
  transform: rotate(45deg);
  margin-top: 6px;
  margin-left: auto;
  transition: transform var(--transition-base), border-color var(--transition-base);
}

.news-item.is-open .news-item__header::after {
  transform: rotate(-135deg);
  border-color: var(--color-accent);
}

.news-item__header:hover {
  background: rgba(230, 57, 70, 0.03);
}

.news-item__date {
  flex-shrink: 0;
  font-family: var(--font-heading);
  font-size: 14px;
  letter-spacing: 1px;
  color: var(--color-text-sub);
  min-width: 100px;
}

.news-item__tag {
  flex-shrink: 0;
}

.news-item__title {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.news-item__header:hover .news-item__title {
  color: var(--color-accent);
}

/* News Detail (expandable) */
.news-item__detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              padding 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.3s ease;
  opacity: 0;
  padding: 0 0 0 120px;
}

.news-item__detail p {
  font-size: 14px;
  line-height: 2;
  color: var(--color-text-sub);
}

.news-item.is-open .news-item__detail {
  max-height: 300px;
  opacity: 1;
  padding: 0 0 24px 120px;
}

/* ---- About ---- */
.about__content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about__lead {
  font-family: var(--font-heading);
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  letter-spacing: 2px;
  line-height: 1.6;
  margin-bottom: 32px;
  color: var(--color-accent);
}

.about__text {
  font-size: 15px;
  line-height: 2;
  color: var(--color-text-sub);
}

/* ---- Member Cards ---- */
.member-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-base),
              box-shadow var(--transition-base),
              border-color var(--transition-base);
}

.member-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-glow);
  border-color: var(--color-accent);
}

.member-card__image {
  width: 100%;
  aspect-ratio: 3 / 4;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.member-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.member-card:hover .member-card__image img {
  transform: scale(1.05);
}

.member-card__placeholder {
  font-size: 64px;
  color: var(--color-border);
}

.member-card__info {
  padding: 24px;
}

.member-card__part {
  font-family: var(--font-heading);
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.member-card__name {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 4px;
}

.member-card__name-en {
  font-family: var(--font-heading);
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--color-text-sub);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.member-card__bio {
  font-size: 13px;
  line-height: 1.8;
  color: var(--color-text-sub);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow),
              opacity var(--transition-base);
  opacity: 0;
}

.member-card:hover .member-card__bio {
  max-height: 200px;
  opacity: 1;
}

/* ---- Discography Cards ---- */
.disc-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-base),
              box-shadow var(--transition-base);
}

.disc-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.disc-card__jacket {
  width: 100%;
  aspect-ratio: 1;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.disc-card__jacket img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.disc-card:hover .disc-card__jacket img {
  transform: scale(1.08);
}

.disc-card__placeholder {
  font-size: 48px;
  color: var(--color-border);
}

.disc-card__info {
  padding: 20px;
}

.disc-card__type {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.disc-card__title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.disc-card__date {
  font-size: 13px;
  color: var(--color-text-sub);
}

/* ---- Live Schedule ---- */
.live-list {
  max-width: 900px;
  margin: 0 auto;
}

.live-item {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 28px 24px;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast);
}

.live-item:hover {
  background: rgba(230, 57, 70, 0.05);
}

.live-item__date {
  font-family: var(--font-heading);
  text-align: center;
}

.live-item__month {
  display: block;
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
}

.live-item__day {
  display: block;
  font-size: 36px;
  font-weight: 700;
  line-height: 1;
  color: var(--color-text);
}

.live-item__year {
  display: block;
  font-size: 12px;
  color: var(--color-text-sub);
}

.live-item__info {
  min-width: 0;
}

.live-item__title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.live-item__venue {
  font-size: 14px;
  color: var(--color-text-sub);
}

.live-item__venue::before {
  content: '📍 ';
}

.live-item__open {
  font-size: 13px;
  color: var(--color-text-sub);
  margin-top: 4px;
}

.live-item__ticket {
  flex-shrink: 0;
}

/* ---- Movie Section ---- */
.movie-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

.movie-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.movie-item__video {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  background: var(--color-bg-alt);
}

.movie-item__video iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.movie-item__placeholder {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-border);
  font-size: 48px;
}

.movie-item__title {
  padding: 16px 20px;
  font-size: 14px;
  color: var(--color-text-sub);
}

/* ---- Contact Section ---- */
.contact__content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.contact__text {
  font-size: 15px;
  line-height: 2;
  color: var(--color-text-sub);
  margin-bottom: 40px;
}

.contact__sns {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 40px;
}

.sns-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  font-size: 22px;
  color: var(--color-text-sub);
  transition: border-color var(--transition-fast),
              color var(--transition-fast),
              box-shadow var(--transition-fast),
              transform var(--transition-fast);
}

.sns-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.contact__mail {
  font-size: 14px;
  color: var(--color-text-sub);
}

.contact__mail a {
  color: var(--color-accent);
  transition: color var(--transition-fast);
}

.contact__mail a:hover {
  color: var(--color-accent-glow);
  text-decoration: underline;
}

/* ============================================
   Responsive Components
   ============================================ */

@media (max-width: 768px) {
  .news-item__header {
    flex-wrap: wrap;
    gap: 8px;
  }

  .news-item__date {
    min-width: auto;
  }

  .news-item__detail {
    padding: 0 0 0 0;
  }

  .news-item.is-open .news-item__detail {
    padding: 0 0 20px 0;
  }

  .live-item {
    grid-template-columns: 80px 1fr;
    gap: 16px;
  }

  .live-item__ticket {
    grid-column: 1 / -1;
    text-align: center;
  }

  .movie-grid {
    grid-template-columns: 1fr;
  }

  .member-card__bio {
    max-height: none;
    opacity: 1;
  }

  .contact__sns {
    gap: 16px;
  }

  .sns-link {
    width: 48px;
    height: 48px;
    font-size: 18px;
  }
}