/* =========================================================
   Topic / News archive (page-topic)
========================================================= */

.nfu-topic {
  background: #06102a;
}

.nfu-topic__hero {
  position: relative;
  padding: 0;
  background: radial-gradient(
    ellipse at 0% 40%,
    rgb(0 194 255 / 22%),
    rgba(6, 16, 42, 0) 40%
  );
}

.nfu-topic__hero--hasbg {
  background:
    linear-gradient(to bottom, rgba(6, 16, 42, 0.15), rgba(6, 16, 42, 0.75)),
    var(--nfu-hero-bg) center / cover no-repeat;
}

.nfu-topic__heroInner {
  max-width: 1280px;
  margin: 0 auto;
}

.nfu-topic__kicker {
  margin: 0 0 10px;
  color: rgba(244, 246, 255, 0.85);
  font-weight: 1000;
  letter-spacing: 0.12em;
  font-size: 14px;
}

.nfu-topic__title {
  margin: 0 0 10px;
  color: rgba(244, 246, 255, 0.98);
  font-weight: 1000;
  letter-spacing: 0.02em;
  font-size: 48px;
  line-height: 1.1;
}

.nfu-topic__crumbs {
  margin: 10px 0 16px;
}

.nfu-topic__crumbs a,
.nfu-topic__crumbs span {
  color: rgba(244, 246, 255, 0.72);
  font-size: 12px;
  text-decoration: none;
  letter-spacing: 0.04em;
}

.nfu-topic__crumbs a:hover {
  color: rgba(244, 246, 255, 0.95);
  text-decoration: underline;
}

.nfu-topic__lead {
  margin: 0;
  color: rgba(244, 246, 255, 0.78);
  font-size: 15px;
  line-height: 1.75;
  max-width: 70ch;
}

.nfu-topic__shell {
  padding: 60px 0px;
  background: linear-gradient(
    to bottom,
    rgba(6, 16, 42, 0),
    rgba(6, 16, 42, 0.85)
  );
}

.nfu-topic__layout {
  max-width: 1280px;
  margin: 0 auto;

  display: grid;
  gap: 20px;
  align-items: start;
}

.nfu-topic__main {
  min-width: 0;
}

.nfu-topic__side {
  min-width: 0;
}

/* =========================================================
   Topic category filters
========================================================= */
.nfu-topic__filters {
  margin: 0 0 20px;
}

.nfu-topic__filterList {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.nfu-topic__filter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 900;
  font-size: 14px;
  letter-spacing: 0.02em;

  background: rgba(244, 246, 255, 0.08);
  border: 1px solid rgba(244, 246, 255, 0.14);
  color: rgba(244, 246, 255, 0.92);

  transition:
    background 0.12s ease,
    border-color 0.12s ease,
    transform 0.12s ease;
}

.nfu-topic__filter:hover {
  background: rgba(244, 246, 255, 0.14);
  border-color: rgba(0, 194, 255, 0.35);
  transform: translateY(-1px);
}

.nfu-topic__filter.is-active {
  background: #1b2988;
  border-color: #1b2988;
  color: #ffffff;
}

@media (max-width: 600px) {
  .nfu-topic__filter {
    min-height: 38px;
    padding: 0 14px;
    font-size: 13px;
  }
}

/* =========================================================
   News list (main column)
========================================================= */

.nfu-newslist {
  display: grid;
  gap: 16px;
}

.nfu-topic .nfu-newslist__item {
  overflow: hidden;
  border: 1px solid rgba(0, 95, 255, 0.28);
  border-radius: 10px;
  background: #06102a;
  box-shadow: var(--nfu-shadow-md);
}

.nfu-newslist__link {
  display: grid;
  grid-template-columns: 1fr;
  text-decoration: none;
  color: rgba(244, 246, 255, 0.96);
  transition:
    border-color 0.12s ease,
    background 0.12s ease,
    transform 0.12s ease;
}

.nfu-newslist__link:hover {
  background: var(--nfu-primary);
  border-color: rgba(0, 194, 255, 0.45);
  transform: translateY(-1px);
}

.nfu-newslist__thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.nfu-newslist__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.nfu-newslist__body {
  padding: 18px 18px 20px;
  display: grid;
  align-content: center;
  gap: 10px;
}

.nfu-newslist__date {
  font-size: 12px;
  font-weight: 900;
  color: rgba(244, 246, 255, 0.75);
}

.nfu-newslist__title {
  font-size: 18px;
  font-weight: 1000;
  line-height: 1.35;
}

.nfu-newslist__excerpt {
  margin: 0;
  font-size: 14px;
  color: rgba(244, 246, 255, 0.74);
  line-height: 1.75;
}

/* =========================================================
   Sidebar (NEW ARRIVALS) - “中身を白カード化”
========================================================= */

.nfu-topicSide {
  /* 右カラムは「白カード」にする（背景を変えるんじゃなく、中身をカード化） */
  background: #ffffff;
  color: #0b102a;
  border: 1px solid rgba(215, 219, 240, 0.95);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--nfu-shadow-md);
}

.nfu-topicSide__title {
  margin: 0 0 12px;
  font-weight: 1000;
  letter-spacing: 0.1em;
  font-size: 14px;
  color: #0b102a;
  opacity: 0.95;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(215, 219, 240, 0.9);
}

.nfu-topicSide__list {
  display: grid;
  gap: 10px;
}

.nfu-topicSide__empty {
  margin: 0;
  color: rgba(11, 16, 42, 0.7);
}

.nfu-sidecard {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 10px;
  align-items: center;

  padding: 10px;
  text-decoration: none;
  color: inherit;

  background: #f4f6ff;
  border: 1px solid rgba(215, 219, 240, 0.95);
  border-radius: 12px;
}

.nfu-sidecard:hover {
  background: #ffffff;
  border-color: rgba(27, 41, 136, 0.55);
  box-shadow: 0 12px 28px rgba(11, 16, 42, 0.16);
}

.nfu-sidecard__thumb {
  width: 78px;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: rgba(11, 16, 42, 0.06);
  border: 1px solid rgba(215, 219, 240, 0.9);
  border-radius: 10px;
  display: grid;
  place-items: center;
}

.nfu-sidecard__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.nfu-sidecard__img.is-fallback {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #ffffff;
  padding: 8px;
  display: block;
}

.nfu-sidecard__noimg {
  font-size: 10px;
  letter-spacing: 0.08em;
  opacity: 0.7;
}

.nfu-sidecard__date {
  display: block;
  font-size: 11px;
  font-weight: 900;
  color: rgba(11, 16, 42, 0.7);
  margin-bottom: 4px;
}

.nfu-sidecard__title {
  display: block;
  font-weight: 900;
  line-height: 1.35;
  font-size: 15px;
  color: #0b102a;
}

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

.nfu-pagination {
  display: flex;
  gap: 8px;
  margin-top: 18px;
}

.nfu-pagination a,
.nfu-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 34px;
  padding: 0 10px;
  border-radius: 10px;
  font-weight: 900;
  font-size: 14px;
  text-decoration: none;

  background: rgba(244, 246, 255, 0.08);
  border: 1px solid rgba(244, 246, 255, 0.12);
  color: rgba(244, 246, 255, 0.9);
}

.nfu-pagination .current {
  background: #1b2988;
  border-color: #1b2988;
}

/* =========================================================
   Breakpoints (existing)
========================================================= */

@media (min-width: 780px) {
  .nfu-topic__layout {
    grid-template-columns: 1fr 320px;
  }
}

@media (min-width: 900px) {
  .nfu-topic .nfu-newslist__link {
    grid-template-columns: 0.7fr 1fr;
  }

  .nfu-newslist__thumb {
    aspect-ratio: 4 / 3;
  }

  .nfu-newslist__body {
    padding: 22px 22px 22px;
    font-size: 16px;
  }
}

@media (min-width: 1024px) {
  .nfu-topic__layout {
    grid-template-columns: 1fr 360px;
    gap: 22px;
  }
}

/* =========================================================
   Responsive tuning (福岡大の“幅感”寄せ)
========================================================= */
/* 1200以下は詰めすぎないよう左右余白を少し増やす */
@media (max-width: 1200px) {
  .nfu-topic__layout {
    gap: 18px;
  }

  .nfu-sidecard__date {
    font-size: 10px;
  }

  .nfu-sidecard__title {
    font-size: 12px;
  }
}

/* 1024〜は2カラム維持しつつ、サイドバーを少し細く */
@media (max-width: 1100px) and (min-width: 1024px) {
  .nfu-topic__layout {
    grid-template-columns: 1fr 320px;
  }
}

/* タブレット寄りでヒーローの余白を軽く */
@media (max-width: 1023px) {
  .nfu-topic__title {
    font-size: 40px;
  }

  .nfu-topicSide {
    padding: 20px;
    margin-top: 60px;
  }
}

/* タブレット幅での余白調整 */
@media (max-width: 768px) {
  .nfu-topic__shell {
    padding: 40px 0px;
  }
  .nfu-newslist {
    gap: 60px;
  }
  .nfu-topic__side {
    margin-top: 40px;
  }
}

/* スマホ手前: 文字とカードをちょい小さく、押しやすく */
@media (max-width: 600px) {
  .nfu-topic__kicker {
    font-size: 12px;
  }

  .nfu-topic__title {
    font-size: 34px;
  }

  .nfu-topic__lead {
    font-size: 14px;
  }

  .nfu-sidecard {
    grid-template-columns: 64px 1fr;
  }

  .nfu-sidecard__thumb {
    width: 64px;
  }
}