/* Shared Components: Buttons, Gallery, Photo Grid */

/* CTA Button (generic) */
.btn {
  display: inline-block;
  font-family: var(--font-mincho);
  font-size: var(--text-sm);
  letter-spacing: 0.15em;
  padding: 0.8em 2.5em;
  border: 1px solid currentColor;
  transition: all var(--transition-fast);
  cursor: pointer;
  text-align: center;
}

.btn:hover {
  opacity: 1;
}

.btn--rounded {
  border-radius: 30px;
}

.btn--filled {
  background-color: var(--color-text-light);
  color: var(--color-bg-light);
  border-color: var(--color-text-light);
}

[data-theme="dark"] .btn--filled {
  background-color: var(--color-text-dark);
  color: var(--color-bg-dark);
  border-color: var(--color-text-dark);
}

/* "More" link */
.more-link {
  font-size: var(--text-base);
  letter-spacing: 0.15em;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  position: relative;
  transition: opacity var(--transition-fast);
}

.more-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: currentColor;
  transform-origin: right;
  transform: scaleX(1);
  transition: transform 0.3s ease;
}

.more-link:hover::before {
  transform-origin: left;
  transform: scaleX(0);
  transition: none;
  animation: underline-from-left 0.8s ease forwards;
}

@keyframes underline-from-left {
  0%   { transform: scaleX(0); }
  100% { transform: scaleX(1); }
}

.more-link::after {
  content: '＞';
  display: inline-block;
  transition: transform var(--transition-base);
}

.more-link:hover {
  opacity: 1;
}

.more-link:hover::after {
  transform: none;
}

/* Photo Gallery / Carousel */
.gallery {
  position: relative;
  overflow: hidden;
  background-color: var(--bg, transparent);
}

.gallery__track {
  display: flex;
  transition: transform var(--transition-slow);
}

.gallery__slide {
  flex: 0 0 100%;
  width: 100%;
}

.gallery__slide picture {
  display: block;
  width: 100%;
  height: 100%;
}

.gallery__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Gallery fade mode */
.gallery--fade .gallery__track {
  display: grid;
  transition: none;
}

.gallery--fade .gallery__slide {
  grid-area: 1 / 1;
  opacity: 0;
  transition: opacity 3s ease;
}

.gallery--fade .gallery__slide--active {
  opacity: 1;
}

/* Gallery dots */
.gallery__dots {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: var(--space-md);
}

.gallery__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background-color: rgba(0, 0, 0, 0.25);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  padding: 0;
}

.gallery__dot--active {
  background-color: rgba(0, 0, 0, 0.8);
}

[data-theme="dark"] .gallery__dot,
.modal--dark .gallery__dot {
  background-color: rgba(255, 255, 255, 0.3);
}

[data-theme="dark"] .gallery__dot--active,
.modal--dark .gallery__dot--active {
  background-color: rgba(255, 255, 255, 0.9);
}

/* Photo Grid */
.photo-grid {
  display: grid;
  gap: 4px;
}

.photo-grid--2x3 {
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, 1fr);
}

.photo-grid--2x2 {
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, 1fr);
}

.photo-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

/* Room thumbnail grid */
.room-grid-wrapper {
  max-width: 62%;
  margin: 0 auto;
}

.room-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
}

.room-card {
  position: relative;
  overflow: hidden;
  text-align: center;
  cursor: pointer;
}

.room-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.room-card:hover::after {
  opacity: 0;
}

.room-card picture {
  display: block;
  width: 100%;
}

.room-card__image {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  margin-bottom: 0;
}

/* Room slider label (SP only) */
.room-card__label {
  display: none;
}

@media (max-width: 768px) {
  .room-grid-wrapper {
    max-width: none;
    margin-left: calc(-1 * var(--space-lg));
    margin-right: calc(-1 * var(--space-lg));
    overflow: hidden;
  }
  .room-grid {
    display: flex;
    flex-wrap: nowrap;
    transition: transform 0.3s ease;
    gap: 15px;
  }
  .room-card {
    flex: 0 0 85%;
    width: 85%;
  }
  .room-card::after {
    opacity: 1;
    transition: opacity 0.3s ease;
  }
  .room-card--active::after {
    opacity: 0;
  }
  .room-card__name {
    display: none;
  }
  .room-card__label {
    display: block;
    text-align: center;
    padding: var(--space-md) 0;
    font-size: var(--text-base);
    letter-spacing: 0.1em;
    color: var(--text);
  }
  .room-card__image {
    aspect-ratio: 3 / 2;
  }
}

.room-card__name {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
  font-size: 18px;
  letter-spacing: 0.15em;
  color: #fff;
  transition: opacity 0.4s ease;
}

.room-card:hover .room-card__name {
  opacity: 0;
}

/* Icon with text */
.icon-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.icon-text__icon {
  width: 80px;
  height: 80px;
}

.icon-text__icon svg,
.icon-text__icon img {
  width: 100%;
  height: 100%;
}

/* Page title (subpages) */
.page-title {
  text-align: center;
  padding-top: 180px;
  padding-bottom: 28px;
  font-family: var(--font-mincho-demibold);
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: 0.25em;
}

/* Scroll reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-very-slow), transform var(--transition-very-slow);
}

.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered reveal: each item fades in from below, one at a time */
.reveal-stagger {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1.4s ease, transform 1.4s ease;
}

.reveal-stagger--visible {
  opacity: 1;
  transform: translateY(0);
}