* {
  box-sizing: border-box;
}

/* Page Content */
.topic-list-page {
  width: 100%;
  background: #ffffff;
  padding: 40px 0 60px;
}

.topic-list-container {
  max-width: 1200px;
  margin: 0 auto;
}

/* Header */
.topic-list-header {
  text-align: center;
  margin-bottom: 48px;
}

.topic-list-title {
  font-size: 48px;
  font-weight: 700;
  color: #fe4ba0;
  margin: 0;
  line-height: 1.5;
  font-family: "Noto Sans JP", sans-serif;
}

/* Grid */
.topic-list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 60px;
}

/* Topic Card */
.topic-list-card {
  background: #ffffff;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.topic-list-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.topic-list-link {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.topic-list-card-title {
  font-size: 24px;
  font-weight: 700;
  color: #fe4ba0;
  margin: 0;
  line-height: 1.6;
  font-family: "Noto Sans JP", sans-serif;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.topic-list-card-date {
  font-size: 12px;
  font-weight: 400;
  color: #828282;
  font-family: "Noto Sans JP", sans-serif;
}

.topic-list-card-description {
  font-size: 16px;
  font-weight: 400;
  color: #1C1C1C;
  line-height: 1.5;
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.topic-list-card-author {
  font-size: 12px;
  font-weight: 400;
  color: #FE4BA0;
  font-family: "Noto Sans JP", sans-serif;
  margin-top: auto;
  padding: 6px;
  background: #E9E9E9;
  border-radius: 6px;
}

.topic-list-empty {
  grid-column: 1 / -1;
  text-align: center;
  font-size: 18px;
  color: #666666;
  padding: 40px;
  font-family: "Noto Sans JP", sans-serif;
}

/* Pagination */
.topic-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-top: 40px;
}

.topic-pagination__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  font-size: 16px;
  font-weight: 500;
  color: #000000;
  text-decoration: none;
  border-radius: 8px;
  font-family: "Noto Sans JP", sans-serif;
  transition: all 0.3s ease;
  background: #ffffff;
  border: 1px solid #e0e0e0;
}

.topic-pagination__btn:hover {
  background: #f5f5f5;
  color: #fe4ba0;
  border-color: #fe4ba0;
}

.topic-pagination__btn--disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.topic-pagination__numbers {
  display: flex;
  align-items: center;
  gap: 8px;
}

.topic-pagination__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  font-size: 18px;
  font-weight: 500;
  color: #000000;
  text-decoration: none;
  border-radius: 8px;
  font-family: "Noto Sans JP", sans-serif;
  transition: all 0.3s ease;
}

.topic-pagination__number:hover {
  background: #f5f5f5;
  color: #fe4ba0;
}

.topic-pagination__number.is-active {
  background: #fe4ba0;
  color: #ffffff !important;
  font-weight: 700;
}

.topic-pagination__number.is-active:hover {
  background: #fa309b;
  color: #ffffff !important;
}

/* Responsive Styles */
@media (max-width: 1200px) {
  .topic-list-container,
  .topic-list-breadcrumb-container {
    padding: 0 60px;
  }
}

@media (max-width: 1024px) {
  .topic-list-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .topic-list-page {
    padding: 30px 0 40px;
  }

  .topic-list-container,
  .topic-list-breadcrumb-container {
    padding: 0 30px;
  }

  .topic-list-header {
    margin-bottom: 32px;
  }

  .topic-list-title {
    font-size: 36px;
  }

  .topic-list-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 40px;
  }

  .topic-list-card {
    padding: 20px;
  }

  .topic-list-card-title {
    font-size: 18px;
  }

  .topic-list-card-description {
    font-size: 15px;
  }
}

@media (max-width: 480px) {
  .topic-list-container,
  .topic-list-breadcrumb-container {
    padding: 0 20px;
  }

  .topic-list-title {
    font-size: 28px;
  }

  .topic-list-card {
    padding: 16px;
    gap: 12px;
  }

  .topic-list-card-title {
    font-size: 16px;
  }

  .topic-list-card-date {
    font-size: 13px;
  }

  .topic-list-card-description {
    font-size: 14px;
  }

  .topic-pagination-number {
    min-width: 36px;
    height: 36px;
    font-size: 16px;
    padding: 0 8px;
  }
}