/* MMGSS Knowledge Hub — styles for premium-carousel based cards and modal */

.activities-page #knowledgeGrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: clamp(1.25rem, 2.5vw, 2rem);
}

.activities-page .knowledge-card {
  background: #fff;
  border: 1px solid var(--line, #e6e2e0);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.activities-page .knowledge-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 60px rgba(16, 18, 22, 0.12);
}

/* Card media with premium-carousel */
.activities-page .knowledge-card .card-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--surface, #f4f4f4);
}

.activities-page .knowledge-card .card-media premium-carousel {
  width: 100%;
  height: 100%;
  --pc-radius: 0;
  --pc-bg: transparent;
  --pc-glass-shadow: none;
}

.activities-page .knowledge-card .card-media premium-carousel .pc {
  border-radius: 0;
  box-shadow: none;
  background: transparent;
}

.activities-page .knowledge-card .card-media premium-carousel .stage {
  border-radius: 0;
  background: transparent;
}

.activities-page .knowledge-card .card-media premium-carousel .slide img {
  border-radius: 0;
  transition: transform 0.6s var(--ease);
}

.activities-page .knowledge-card:hover .card-media premium-carousel .slide.is-active img {
  transform: scale(1.05);
}

/* Holiday badge overlay */
.activities-page .knowledge-card .holiday-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  right: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  z-index: 3;
  pointer-events: none;
}

.activities-page .knowledge-card .holiday-badge span {
  pointer-events: auto;
  background: rgba(23, 2, 7, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #fff;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
}

.activities-page .knowledge-card .holiday-badge .japanese-name {
  background: linear-gradient(135deg, var(--red, #b90b0b), var(--red-dark, #8c0909));
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: none;
  padding: 0.4rem 0.85rem;
}

/* Card content */
.activities-page .knowledge-card .card-content {
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.activities-page .knowledge-card .card-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.activities-page .knowledge-card .card-title {
  margin: 0;
  font-size: clamp(1.15rem, 2.2vw, 1.4rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--ink, #101216);
  letter-spacing: -0.02em;
}

.activities-page .knowledge-card .card-date {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--red, #b90b0b);
  white-space: nowrap;
  background: var(--red-soft, #fff1f3);
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  flex-shrink: 0;
}

.activities-page .knowledge-card .card-description {
  color: var(--muted, #687078);
  font-size: 0.92rem;
  line-height: 1.7;
  margin: 0;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.activities-page .knowledge-card .card-footer {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line, #e6e2e0);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.activities-page .knowledge-card .card-season {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted, #687078);
  background: var(--surface, #f4f4f4);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
}

.activities-page .knowledge-card .card-season i {
  font-size: 0.85rem;
  color: var(--red, #b90b0b);
}

/* View button with Bootstrap Icons */
.activities-page .knowledge-card .card-view-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  background: var(--red, #b90b0b);
  border: none;
  border-radius: 999px;
  padding: 0.6rem 1.2rem;
  cursor: pointer;
  transition: background 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
  box-shadow: 0 4px 16px rgba(185, 11, 11, 0.3);
}

.activities-page .knowledge-card .card-view-btn:hover {
  background: var(--red-dark, #8c0909);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(185, 11, 11, 0.4);
}

.activities-page .knowledge-card .card-view-btn:active {
  transform: scale(0.97);
}

.activities-page .knowledge-card .card-view-btn .bi {
  font-size: 0.9rem;
  transition: transform 0.2s var(--ease);
}

.activities-page .knowledge-card:hover .card-view-btn .bi {
  transform: translateX(4px);
}

.activities-page .knowledge-card .card-view-btn:focus-visible {
  outline: 2px solid var(--red, #b90b0b);
  outline-offset: 3px;
}

/* =========================================================
   Holiday Modal with premium-carousel
   ========================================================= */

.holiday-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s var(--ease), visibility 0.35s var(--ease);
}

.holiday-modal.open {
  opacity: 1;
  visibility: visible;
}

.holiday-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 5, 8, 0.75);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
}

.holiday-modal.open .holiday-modal-backdrop {
  opacity: 1;
}

.holiday-modal-dialog {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 960px;
  max-height: 90vh;
  overflow: hidden;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 32px 80px rgba(16, 18, 22, 0.25);
  transform: scale(0.92) translateY(20px);
  transition: transform 0.4s var(--ease);
}

.holiday-modal.open .holiday-modal-dialog {
  transform: scale(1) translateY(0);
}

.holiday-modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 10;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.95);
  color: var(--ink, #101216);
  font-size: 1.25rem;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(16, 18, 22, 0.15);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: background 0.2s var(--ease), transform 0.2s var(--ease), color 0.2s var(--ease);
}

.holiday-modal-close:hover {
  background: var(--red, #b90b0b);
  color: #fff;
  transform: rotate(90deg);
}

.holiday-modal-close:focus-visible {
  outline: 2px solid var(--red, #b90b0b);
  outline-offset: 3px;
}

.holiday-modal-content {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  min-height: 560px;
}

.holiday-modal-media {
  position: relative;
  overflow: hidden;
  background: var(--dark, #170207);
}

.holiday-modal-media premium-carousel {
  --pc-radius: 0;
  --pc-bg: transparent;
  --pc-glass-shadow: none;
}

.holiday-modal-media premium-carousel .pc {
  border-radius: 0;
  box-shadow: none;
  background: transparent;
}

.holiday-modal-media premium-carousel .stage {
  border-radius: 0;
  background: transparent;
}

.holiday-modal-media premium-carousel .slide img {
  transition: transform 0.8s var(--ease);
}

.holiday-modal-media premium-carousel .slide.is-active img {
  transform: scale(1.02);
}

.holiday-modal-body {
  padding: clamp(2rem, 4vw, 3rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow-y: auto;
}

.holiday-modal-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.holiday-modal-badge {
  background: linear-gradient(135deg, var(--red, #b90b0b), var(--red-dark, #8c0909));
  color: #fff;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  white-space: nowrap;
}

.holiday-modal-header time {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--red, #b90b0b);
  background: var(--red-soft, #fff1f3);
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  white-space: nowrap;
}

.holiday-modal-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--ink, #101216);
}

.holiday-modal-meta {
  margin-bottom: 1.25rem;
}

.holiday-modal-season {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted, #687078);
  background: var(--surface, #f4f4f4);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
}

.holiday-modal-season i {
  font-size: 0.9rem;
  color: var(--red, #b90b0b);
}

.holiday-modal-divider {
  height: 1px;
  background: linear-gradient(90deg, var(--line, #e6e2e0), transparent);
  margin: 1.25rem 0;
}

.holiday-modal-description {
  margin: 0;
  color: var(--muted, #687078);
  font-size: 1rem;
  line-height: 1.85;
}

/* Responsive */
@media (max-width: 900px) {
  .holiday-modal-content {
    grid-template-columns: 1fr;
  }
  
  .holiday-modal-media {
    min-height: 320px;
  }
  
  .holiday-modal-body {
    padding: 1.75rem;
  }
  
  .holiday-modal-title {
    font-size: 1.75rem;
  }
}

@media (max-width: 640px) {
  .holiday-modal {
    padding: 1rem;
    align-items: flex-end;
  }
  
  .holiday-modal-dialog {
    max-height: 85vh;
    border-radius: 20px 20px 0 0;
  }
  
  .holiday-modal-content {
    grid-template-columns: 1fr;
  }
  
  .holiday-modal-media {
    min-height: 260px;
  }
  
  .holiday-modal-body {
    padding: 1.5rem;
  }
  
  .holiday-modal-title {
    font-size: 1.5rem;
  }
  
  .holiday-modal-description {
    font-size: 0.95rem;
  }
  
  .holiday-modal-close {
    top: 0.75rem;
    right: 0.75rem;
    width: 40px;
    height: 40px;
    font-size: 1.1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .holiday-modal,
  .holiday-modal-backdrop,
  .holiday-modal-dialog,
  .holiday-modal-close,
  .holiday-modal-media premium-carousel .slide img {
    transition: none !important;
    transform: none !important;
  }
  
  .holiday-modal.open .holiday-modal-dialog {
    transform: none !important;
  }
}

body.modal-open {
  overflow: hidden;
}

/* Knowledge grid responsive */
@media (max-width: 900px) {
  .activities-page .knowledge-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
  }
}

@media (max-width: 640px) {
  .activities-page .knowledge-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
  
  .activities-page .knowledge-card .card-content {
    padding: 1.25rem;
  }
  
  .activities-page .knowledge-card .card-title {
    font-size: 1.15rem;
  }
  
  .activities-page .knowledge-card .card-description {
    font-size: 0.9rem;
    -webkit-line-clamp: 3;
  }
}

/* Reduced motion for cards */
@media (prefers-reduced-motion: reduce) {
  .activities-page .knowledge-card,
  .activities-page .knowledge-card .card-media premium-carousel .slide img,
  .activities-page .knowledge-card .card-view-btn .bi {
    transition: none !important;
    transform: none !important;
  }
}

/* Production polish: consistent card rhythm and equal-height rows */
.activities-page #knowledgeGrid {
  grid-auto-rows: 1fr;
  align-items: stretch;
}

.activities-page .knowledge-card {
  min-width: 0;
  height: 100%;
}

.activities-page .knowledge-card .card-media {
  flex: 0 0 auto;
  aspect-ratio: 16 / 10;
}

.activities-page .knowledge-card .card-content {
  min-height: 310px;
}

.activities-page .knowledge-card .card-title-row {
  min-height: 2.75rem;
  align-items: flex-start;
  flex-wrap: nowrap;
}

.activities-page .knowledge-card .card-title {
  flex: 1 1 auto;
  min-width: 0;
}

.activities-page .knowledge-card .card-date {
  flex: 0 0 auto;
  max-width: 100%;
}

.activities-page .knowledge-card .card-description {
  min-height: 6.3em;
}

.activities-page .knowledge-card .card-footer {
  margin-top: auto;
}

.activities-page .knowledge-card .holiday-badge {
  align-items: flex-start;
}

.activities-page .knowledge-card .holiday-badge span {
  max-width: 100%;
  white-space: normal;
  line-height: 1.25;
}

/* Modal carousel occupies the complete media column; no empty black area */
.holiday-modal-dialog {
  width: min(100%, 1040px);
  max-height: 88vh;
}

.holiday-modal-content {
  height: min(76vh, 700px);
  min-height: 0;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
}

.holiday-modal-media {
  min-width: 0;
  min-height: 0;
  height: 100%;
  background: #170207;
}

.holiday-modal-media > premium-carousel,
.holiday-modal-media > premium-carousel .pc,
.holiday-modal-media > premium-carousel .stage {
  width: 100%;
  height: 100%;
}

.holiday-modal-media > premium-carousel .stage {
  aspect-ratio: auto !important;
}

.holiday-modal-media > premium-carousel .slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  background: #170207;
}

.holiday-modal-body {
  min-width: 0;
  min-height: 0;
  overscroll-behavior: contain;
}

@media (max-width: 760px) {
  .activities-page #knowledgeGrid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 270px), 1fr));
  }

  .activities-page .knowledge-card .card-content {
    min-height: 285px;
  }

  .activities-page .knowledge-card .card-title-row {
    min-height: 0;
    flex-wrap: wrap;
  }

  .holiday-modal {
    padding: 0.75rem;
  }

  .holiday-modal-dialog {
    width: 100%;
    max-height: 94vh;
    overflow-y: auto;
    border-radius: 18px;
  }

  .holiday-modal-content {
    display: flex;
    flex-direction: column;
    height: auto;
    min-height: 0;
  }

  .holiday-modal-media {
    height: auto;
    flex: 0 0 auto;
    aspect-ratio: 4 / 3;
  }

  .holiday-modal-media > premium-carousel,
  .holiday-modal-media > premium-carousel .pc,
  .holiday-modal-media > premium-carousel .stage {
    height: 100%;
  }

  .holiday-modal-body {
    padding: 1.5rem;
    overflow: visible;
  }

  .holiday-modal-title {
    padding-right: 2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .activities-page .knowledge-card,
  .holiday-modal,
  .holiday-modal-dialog {
    transition: none !important;
  }
}