/* ==========================================================================
   topics.css — archive-topics.php / single-topics.php
   ========================================================================== */

/* Category filter tabs
   ========================================================================== */

.topics-filter {
  margin-top: 60px;
  display: flex;
  justify-content: center;
  gap: 30px;
}

.topics-filter__tab.is-current {
  background: transparent;
  border-color: var(--color-brown-dark);
  color: var(--color-brown-dark);
}

/* Archive grid
   ========================================================================== */

.topics-grid {
  position: relative;
	margin-top: 60px;
	margin-bottom: 120px;
  padding: 60px 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  column-gap: 20px;
  row-gap: 60px;
}

.topics-grid::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 100vw;
  transform: translateX(-50%);
  background-image: url("../images/top/bg-texture.jpg");
  background-repeat: repeat;
  z-index: -1;
}

.topics-grid__empty {
  grid-column: 1 / -1;
  font-family: var(--font-sans);
  color: var(--color-brown-dark);
}

.topics-card {
  display: flex;
  flex-direction: column;
}

.topics-card__photo {
  width: 100%;
  aspect-ratio: 320 / 427;
  border: 1px solid var(--color-brown-light);
  overflow: hidden;
}

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

.topics-card__text {
	margin-top: 30px;
}

.topics-card__meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topics-card__category {
  display: inline-block;
  width: 85px;
  text-align: center;
  border: 1px solid var(--color-brown);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 1.4rem;
  letter-spacing: 0.7px;
  color: var(--color-brown);
}

.topics-card__date {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.8rem;
	line-height: 1.2;
  color: var(--color-brown);
}

.topics-card__title {
  margin: 10px 0 0;
  font-family: var(--font-sans);
  font-size: 1.6rem;
  line-height: 1.5;
  letter-spacing: 0.8px;
  color: var(--color-brown);
}

/* Pagination
   ========================================================================== */

.topics-pagination {
  margin-top: -60px;
	margin-bottom: 120px;
  display: flex;
  justify-content: center;
  gap: 10px;
}

.topics-pagination__page,
.topics-pagination__prev,
.topics-pagination__next {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
	background: var(--color-gold);
  border: 1px solid var(--color-gold);
  font-family: var(--font-sans);
  font-size: 1.6rem;
  color: var(--color-white);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.topics-pagination__page:hover,
.topics-pagination__prev:hover,
.topics-pagination__next:hover {
	background: var(--color-white);
  color: var(--color-gold);
}

.topics-pagination__page.is-current {
  background: var(--color-white);
  border-color: var(--color-brown-dark);
  color: var(--color-brown-dark);
}

.topics-pagination__prev:before,
.topics-pagination__next:before {
  content: "";
  width: 0;
  height: 0;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}

.topics-pagination__next:before {
  border-left: 7px solid currentColor;
}

.topics-pagination__prev:before {
  border-right: 7px solid currentColor;
}

.topics-pagination__dots {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  font-family: var(--font-sans);
  font-size: 1.6rem;
  color: var(--color-brown-dark);
}

/* Single
   ========================================================================== */

.topics-single {
  margin-top: 60px;
  padding-bottom: 120px;
}

.topics-single__category {
  display: inline-flex;
	align-items: center;
	justify-content: center;
  width: 180px;
	height: 40px;
  line-height: 1.6;
  text-align: center;
  border: 1px solid var(--color-brown-dark);
  font-family: var(--font-sans);
  font-size: 1.6rem;
  color: var(--color-brown-dark);
}

.topics-single__date {
  margin: 20px 0 0;
  font-family: var(--font-sans);
  font-size: 2rem;
  color: var(--color-brown-dark);
}

.topics-single__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 3rem;
  letter-spacing: 1.5px;
  color: var(--color-brown-dark);
}

.topics-single__body {
  margin-top: 60px;
  font-family: var(--font-sans);
  line-height: 1.9;
  letter-spacing: 0.8px;
  color: var(--color-brown-dark);
}

.topics-single__body img {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 30px;
}

.topics-single__body p {
  margin: 30px 0 0;
}

.topics-single__body p:first-child {
  margin-top: 0;
}

.topics-single__buttons {
  margin-top: 120px;
  display: flex;
	justify-content: center;
  gap: 30px;
}

/* ==========================================================================
   Responsive — tablet (768px〜1199px) / SP (〜767px)
   ========================================================================== */

@media (max-width: 1199px) {
  .topics-filter {
    margin-top: 40px;
    flex-wrap: wrap;
    gap: 20px;
  }

	.topics-filter__tab {
		width: 150px;
	}

  .topics-grid {
		margin-top: 50px;
		margin-bottom: 100px;
		padding: 60px 6%;
    grid-template-columns: repeat(3, 1fr);
    column-gap: 20px;
    row-gap: 50px;
  }

	.topics-card__text {
		margin-top: 20px;
	}

  .topics-card__date {
    font-size: 1.6rem;
  }

	.topics-card__category {
		width: 70px;
	}

	.topics-card__title {
		margin-top: 8px;
	}

	.topics-pagination {
		margin-top: -50px;
		margin-bottom: 100px;
		gap: 8px;
	}

	.topics-pagination__page,
	.topics-pagination__prev,
	.topics-pagination__next,
	.topics-pagination__dots {
		width: 40px;
		height: 40px;
	}

	.topics-pagination__prev:before,
	.topics-pagination__next:before {
		border-top: 4px solid transparent;
		border-bottom: 4px solid transparent;
	}

	.topics-pagination__next:before {
		border-left: 6px solid currentColor;
	}

	.topics-pagination__prev:before {
		border-right: 6px solid currentColor;
	}

  .topics-single {
    margin-top: 40px;
    padding-bottom: 100px;
  }

	.topics-single__body {
		margin-top: 40px;
	}

	.topics-single__category {
		width: 150px;
	}

	.topics-single__date {
		margin: 15px 0 0;
		font-size: 1.8rem;
	}
}

@media (max-width: 767px) {
  .topics-filter {
    margin-top: 30px;
    justify-content: flex-start;
    gap: 5px;
  }

  .topics-filter__tab {
    width: auto;
		height: auto !important;
		line-height: 1.8;
    padding: 0 8px;
  }

  .topics-grid {
    margin-top: 40px;
		margin-bottom: 60px;
		padding: 40px 8%;
    grid-template-columns: 1fr;
    row-gap: 40px;
  }

  .topics-card__category {
    width: 75px;
    height: 20px;
    line-height: 18px;
    font-size: 1.2rem;
  }

  .topics-card__date {
    font-size: 1.6rem;
  }

  .topics-card__title {
    margin-top: 4px;
    font-size: 1.4rem;
  }

	.topics-pagination {
		margin-top: -30px;
		margin-bottom: 60px;
		gap: 5px;
	}

	.topics-pagination__page,
	.topics-pagination__prev,
	.topics-pagination__next,
	.topics-pagination__dots {
		width: 25px;
		height: 30px;
		font-size: 1.3rem;
	}

	.topics-pagination__prev:before,
	.topics-pagination__next:before {
		border-top: 3px solid transparent;
		border-bottom: 3px solid transparent;
	}

	.topics-pagination__next:before {
		border-left: 4px solid currentColor;
	}

	.topics-pagination__prev:before {
		border-right: 4px solid currentColor;
	}

  .topics-single {
    margin-top: 30px;
    padding-bottom: 60px;
  }

	.topics-single__body {
		margin-top: 30px;
	}

  .topics-single__title {
    font-size: 2.0rem;
  }

  .topics-single__buttons {
    flex-direction: column;
    gap: 15px;
  }

  .topics-single__buttons .button {
    width: 100%;
  }

	.topics-single__category {
		width: auto;
		height: auto;
		padding: 0 8px;
		font-size: 1.4rem;
		line-height: 1.8;
	}

	.topics-single__date {
		margin: 10px 0 0;
		font-size: 1.6rem;
	}
}