/* ═══════════════════════════════════════════════
   STAGE MODULE — Performance stages
   ═══════════════════════════════════════════════ */

.view { display: none; }
.view.active { display: block; }

#view-performance-list .page-header {
  display: none;
}

#view-performance-list .main-content {
  padding-top: var(--space-8);
}

/* ── Stage Card Grid ── */
.performance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 2px;
  padding: 2px;
}

.performance-group-label {
  grid-column: 1 / -1;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 4px;
  color: var(--color-text-muted);
  padding-bottom: 6px;
  margin-top: 16px;
  border-bottom: 1px solid var(--color-border);
}

.performance-group-label:first-child {
  margin-top: 0;
}

/* ── Accordion (mobile collapsible, desktop always open) ── */
.performance-accordion {
  grid-column: 1 / -1;
  margin-bottom: 8px;
}

.performance-accordion__header {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 14px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--color-accent);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  text-align: left;
}

.performance-accordion__header:hover {
  border-color: var(--color-border-accent);
}

.performance-accordion__arrow {
  font-size: 14px;
  transition: transform 0.2s;
  flex-shrink: 0;
}

.performance-accordion__header.open .performance-accordion__arrow {
  transform: rotate(90deg);
}

.performance-accordion__name {
  flex: 1;
}

.performance-accordion__count {
  font-size: 10px;
  color: var(--color-text-muted);
  letter-spacing: 1px;
}

.performance-accordion__body {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s ease;
}

.performance-accordion__body.open {
  max-height: 9999px;
}

/* Desktop: always show body, hide arrow */
@media (min-width: 769px) {
  .performance-accordion__header {
    cursor: default;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
    padding: 8px 0;
    margin-top: 16px;
    font-size: 11px;
    letter-spacing: 4px;
    color: var(--color-accent);
  }

  .performance-accordion__header:first-child {
    margin-top: 0;
  }

  .performance-accordion__arrow {
    display: none;
  }

  .performance-accordion__body {
    max-height: none !important;
    overflow: visible;
  }
}

.performance-subgrid {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 8px;
}

.performance-card {
  cursor: pointer;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
  display: flex;
  flex-direction: column;
}

.performance-card:hover {
  border-color: var(--color-border-accent);
  transform: translateY(-2px);
}

.performance-card__img {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-surface);
}

.performance-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: filter 0.3s;
}

.performance-card:hover .performance-card__img img {
  filter: brightness(0.8);
}

.performance-card__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: var(--color-text-muted);
  opacity: 0.3;
}

.performance-card__info {
  min-height: 88px;
  padding: 13px 14px 12px;
  margin-top: auto;
}

.performance-card__category {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 8px;
  padding: 1px 6px;
  border: 1px solid rgba(0, 255, 65, 0.16);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  letter-spacing: 2px;
  line-height: 1.2;
  font-size: 8px;
  text-transform: uppercase;
}

.performance-card__title {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--color-text-secondary);
  letter-spacing: 1.8px;
  line-height: 1.25;
  text-transform: uppercase;
}

.performance-card__meta {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--color-text-muted);
  letter-spacing: 1.6px;
  line-height: 1.3;
  margin-top: 6px;
  text-transform: uppercase;
}

/* ── Stage Tabs ── */
.performance-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
  position: sticky;
  top: 60px;
  z-index: 10;
  background: var(--color-bg);
  padding: 0 0 14px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}

.performance-tab {
  font-family: var(--font-mono);
  min-height: 34px;
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 0 10px;
  cursor: pointer;
  background: var(--color-bg-elevated);
  text-transform: uppercase;
  white-space: nowrap;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.performance-tab:hover {
  color: var(--color-text-secondary);
}

.performance-tab.active {
  color: var(--color-accent);
  border-color: rgba(0, 255, 65, 0.38);
  background: rgba(0, 255, 65, 0.055);
}

/* ── Stage Detail Page ── */
.performance-detail {
  padding: var(--space-8) var(--content-padding);
  max-width: var(--max-width);
  margin: 0 auto;
}

.performance-detail__show {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--color-accent);
  text-shadow: 0 0 20px rgba(0, 255, 65, 0.25);
  letter-spacing: 2px;
  line-height: 1;
  margin-bottom: 8px;
}

.performance-detail__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 2px;
  margin-bottom: var(--space-8);
}

.performance-detail__meta span {
  color: var(--color-accent);
}

/* ── Source Label ── */
.performance-song-label {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--color-accent);
  letter-spacing: 1px;
  margin-top: var(--space-8);
  margin-bottom: 4px;
  text-shadow: 0 0 10px rgba(0, 255, 65, 0.2);
  display: none;
}

.performance-song-label:first-child {
  margin-top: 0;
}

.performance-source-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 4px;
  color: var(--color-text-muted);
  margin-top: var(--space-6);
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--color-border);
}

/* ── Video Items Grid (in detail view) ── */
.performance-video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 12px;
  margin-bottom: 8px;
}
.performance-video-item {
  cursor: pointer;
  margin-bottom: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  overflow: hidden;
  transition: border-color 0.2s;
}

.performance-video-item:hover {
  border-color: var(--color-border-accent);
}

.performance-video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  background: #000;
  overflow: hidden;
}

.performance-video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: filter 0.3s;
}

.performance-video-item:hover .performance-video-thumb img {
  filter: brightness(0.5);
}

.performance-video-thumb iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.performance-video-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 68px;
  height: 48px;
  border-radius: 14px;
  background: rgba(255, 0, 0, 0.85);
  color: #fff;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.9;
  transition: opacity 0.2s, transform 0.2s;
}

.performance-video-item:hover .performance-video-play {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.08);
}

.performance-video-info {
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.performance-like-btn {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  color: rgba(225, 225, 225, 0.88);
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  text-align: center;
  text-shadow: 0 0 6px rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
  transition: color 0.15s, text-shadow 0.15s, transform 0.15s;
}

.performance-like-btn:hover,
.performance-like-btn.active {
  color: var(--color-accent);
  text-shadow: 0 0 12px rgba(0, 255, 65, 0.85);
}

.performance-like-btn:hover {
  transform: translateY(-1px) scale(1.08);
}

.performance-focus-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 2px;
  padding: 2px 8px;
  border-radius: 4px;
  flex-shrink: 0;
}

.focus-group {
  background: rgba(0, 255, 65, 0.1);
  color: var(--color-accent);
  border: 1px solid var(--color-border-accent);
}

.focus-woochan {
  background: rgba(0, 255, 65, 0.1);
  color: var(--color-accent);
  border: 1px solid var(--color-border-accent);
}

.performance-video-title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text);
  letter-spacing: 1px;
}

/* ── Back Button ── */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--color-text-muted);
  cursor: pointer;
  margin-bottom: var(--space-8);
  background: none;
  border: none;
  padding: 0;
  transition: color 0.2s;
}

.back-btn::before { content: '← '; }
.back-btn:hover { color: var(--color-accent); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .performance-tabs {
    position: static;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 4px;
    padding-bottom: 12px;
    margin-bottom: 12px;
    overflow: visible;
  }

  .performance-tab {
    min-height: 30px;
    padding: 0 4px;
    font-size: 7px;
    letter-spacing: 1.1px;
    white-space: nowrap;
  }

  .performance-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2px;
  }

  .performance-card__info {
    min-height: 74px;
    padding: 10px 10px 9px;
  }

  .performance-card__category {
    margin-bottom: 7px;
    font-size: 7px;
    letter-spacing: 1.5px;
  }

  .performance-card__title {
    font-size: 8px;
    letter-spacing: 1.3px;
  }

  .performance-card__meta {
    font-size: 7px;
    letter-spacing: 1.2px;
    margin-top: 5px;
  }

  .performance-video-grid {
    grid-template-columns: 1fr;
  }

  .performance-detail__show {
    font-size: 18px;
  }
}

/* ── Video Lightbox mobile landscape ── */
@media (max-width: 768px) and (orientation: landscape) {
  #perf-video-lightbox .pvlb-wrap,
  #bc-video-lightbox .bvlb-wrap {
    width: 100vw !important;
    height: 100vh !important;
    max-width: none !important;
    aspect-ratio: auto !important;
    border-radius: 0 !important;
  }
}