/* ==========================================================================
   page-demo.css — デモ一覧ページ
   ========================================================================== */

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.dl-hero {
  position: relative;
  background-color: var(--bg-dark);
  padding-top: clamp(80px, 12vw, 140px);
  padding-bottom: clamp(60px, 8vw, 100px);
  overflow: hidden;
}

.dl-hero__inner {
  position: relative;
  z-index: 1;
}

.dl-hero__en {
  font-family: var(--font-serif-en);
  font-size: 0.72rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 1.5rem;
}

.dl-hero__title {
  font-family: var(--font-serif-ja);
  font-size: clamp(1.9rem, 4.5vw, 3.4rem);
  font-weight: 300;
  color: var(--text-inverse);
  line-height: 1.45;
  letter-spacing: 0.04em;
  margin-bottom: 1.75rem;
}

.dl-hero__lead {
  font-size: clamp(0.82rem, 1.5vw, 0.92rem);
  font-weight: 300;
  color: rgba(250, 250, 250, 0.5);
  line-height: 2.0;
  letter-spacing: 0.03em;
  max-width: 560px;
}

.dl-hero__deco {
  position: absolute;
  right: -0.05em;
  bottom: -0.2em;
  font-family: var(--font-serif-en);
  font-size: clamp(80px, 18vw, 180px);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.04);
  line-height: 1;
  letter-spacing: -0.02em;
  pointer-events: none;
  user-select: none;
}


/* --------------------------------------------------------------------------
   カテゴリーフィルター
   -------------------------------------------------------------------------- */
.dl-filter {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: var(--header-h);
  z-index: 10;
}

.dl-filter__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  padding-block: 0;
}

.dl-filter__btn {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  padding: 1rem 1.25rem;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
  cursor: pointer;
}

.dl-filter__btn:hover {
  color: var(--text-primary);
}

.dl-filter__btn.is-active {
  color: var(--text-primary);
  border-bottom-color: var(--accent);
  font-weight: 500;
}


/* --------------------------------------------------------------------------
   グリッド
   -------------------------------------------------------------------------- */
.dl-grid-section {
  padding-block: clamp(60px, 8vw, 100px);
  background-color: var(--bg-primary);
}

.dl-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px 40px;
}

@media (min-width: 600px) {
  .dl-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .dl-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 56px 40px;
  }
  /* 2枚目カードを少し下げてリズムを作る */
  .dl-card:nth-child(3n+2) {
    margin-top: 40px;
  }
}

/* カードが非表示状態 */
.dl-card.is-hidden {
  display: none;
}

.dl-empty {
  grid-column: 1 / -1;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding-block: 80px;
  letter-spacing: 0.05em;
}


/* --------------------------------------------------------------------------
   カード
   -------------------------------------------------------------------------- */
.dl-card__link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.dl-card__img-wrap {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: var(--bg-secondary);
}

.dl-grid .dl-card__img-wrap {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(0, 0, 0, 0.06);
}

.dl-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}

.dl-card__img--placeholder {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, #e8e8e6 100%);
}

.dl-card__link:hover .dl-card__img {
  transform: scale(1.04);
}

.dl-card__img-wrap .dl-card__cat {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 1;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--text-inverse);
  background-color: rgba(17, 17, 17, 0.65);
  padding: 4px 10px;
  backdrop-filter: blur(4px);
}

.dl-card__body {
  padding: 20px 0 0;
}

.dl-card__name {
  font-family: var(--font-serif-ja);
  font-size: clamp(1rem, 2vw, 1.15rem);
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.dl-card__tagline {
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  line-height: 1.7;
  margin-bottom: 0.85rem;
}

.dl-card__view {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  transition: gap var(--transition);
}

.dl-card__link:hover .dl-card__view {
  gap: 0.65rem;
}


/* --------------------------------------------------------------------------
   ページ下部CTA
   -------------------------------------------------------------------------- */
.dl-cta {
  background-color: var(--bg-dark);
  padding-block: clamp(80px, 10vw, 120px);
  text-align: center;
}

.dl-cta__label {
  font-family: var(--font-serif-en);
  font-size: 0.7rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 1.5rem;
}

.dl-cta__title {
  font-family: var(--font-serif-ja);
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  font-weight: 300;
  color: var(--text-inverse);
  line-height: 1.55;
  letter-spacing: 0.04em;
  margin-bottom: 1.5rem;
}

.dl-cta__text {
  font-size: clamp(0.82rem, 1.5vw, 0.92rem);
  font-weight: 300;
  color: rgba(250, 250, 250, 0.5);
  line-height: 2.0;
  letter-spacing: 0.03em;
  margin-bottom: 2.75rem;
}

.dl-cta__btns {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

@media (min-width: 560px) {
  .dl-cta__btns {
    flex-direction: row;
    justify-content: center;
  }
}

.dl-cta__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-decoration: none;
  padding: 0.95rem 2.4rem;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
  min-width: 220px;
}

.dl-cta__btn--primary {
  background-color: var(--accent);
  color: var(--text-inverse);
  border: 1px solid var(--accent);
}
.dl-cta__btn--primary:hover {
  background-color: var(--accent-light);
  border-color: var(--accent-light);
}

.dl-cta__btn--ghost {
  background-color: transparent;
  color: var(--text-inverse);
  border: 1px solid rgba(250, 250, 250, 0.3);
}
.dl-cta__btn--ghost:hover {
  border-color: var(--text-inverse);
}