/* riff-common-bundle.css: responsive-breaks.css + news-blog-sections.css + fade-animations.css を統合（リクエスト数削減） */
/* ================================
   レスポンシブ改行制御CSS
   ================================ */

/* PC専用改行 - スマホでは非表示 */
.pc {
    display: inline;
}

@media (max-width: 767px) {
    .pc {
        display: none;
    }
}

/* スマホ専用改行 - PCでは非表示 */
.sp {
    display: none;
}

@media (max-width: 767px) {
    .sp {
        display: inline;
    }
}

/* 改行を含むテキストの調整 */
.hero-description,
.section-description,
.company-description,
.news-description,
.blog-description {
    line-height: 1.7;
}

/* 連続する改行の調整 */
.hero-description br + br,
.section-description br + br,
.company-description br + br {
    line-height: 0.5;
}
/* ==========================================================================
   NEWSセクション・BLOGセクション スタイル
   ========================================================================== */

/* フィルターボタンのスタイル改良 */
.riff-news-filters-new,
.riff-blog-filters-new {
  text-align: center;
  margin-bottom: 40px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 12px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.riff-news-filter-buttons,
.riff-blog-filter-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.riff-news-filter-btn,
.riff-blog-filter-btn {
  background: #f8f9fa;
  color: var(--text-color);
  border: 2px solid #e9ecef;
  padding: 12px 24px;
  border-radius: 25px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.riff-news-filter-btn:before,
.riff-blog-filter-btn:before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  transition: left 0.5s ease;
}

.riff-news-filter-btn:hover:before,
.riff-blog-filter-btn:hover:before {
  left: 100%;
}

.riff-news-filter-btn:hover,
.riff-blog-filter-btn:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 124, 186, 0.3);
}

.riff-news-filter-btn.active,
.riff-blog-filter-btn.active {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  box-shadow: 0 6px 20px rgba(0, 124, 186, 0.4);
}

/* NEWSグリッドの改良 */
.riff-news-grid-new,
.riff-blog-grid-new {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin-bottom: 50px;
}

.riff-news-item-new,
.riff-blog-item-new {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  position: relative;
  transform: translateY(0);
}

.riff-news-item-new:hover,
.riff-blog-item-new:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.riff-news-link,
.riff-blog-link {
  display: block;
  text-decoration: none;
  color: inherit;
  height: 100%;
}

/* 画像エリアの改良 */
.riff-news-image-new,
.riff-blog-image-new {
  aspect-ratio: 16/9;
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.riff-news-image-new img,
.riff-blog-image-new img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.riff-news-item-new:hover .riff-news-image-new img,
.riff-blog-item-new:hover .riff-blog-image-new img {
  transform: scale(1.08);
}

/* オーバーレイ効果 */
.riff-news-image-new:after,
.riff-blog-image-new:after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg,
    rgba(0, 124, 186, 0.8) 0%,
    rgba(255, 107, 53, 0.8) 100%
  );
  opacity: 0;
  transition: opacity 0.4s ease;
}

.riff-news-item-new:hover .riff-news-image-new:after,
.riff-blog-item-new:hover .riff-blog-image-new:after {
  opacity: 1;
}

/* 記事内容エリアの改良 */
.riff-news-content-new,
.riff-blog-content-new {
  padding: 25px;
  display: flex;
  flex-direction: column;
  height: calc(100% - 200px);
}

.riff-news-meta-new,
.riff-blog-meta-new {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
  font-size: 13px;
  color: var(--text-light);
}

.riff-news-meta-new time,
.riff-blog-meta-new time {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}

.riff-news-meta-new time:before,
.riff-blog-meta-new time:before {
  content: "📅";
  font-size: 12px;
}

.riff-news-category-new,
.riff-blog-category-new {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  color: white;
  padding: 4px 12px;
  border-radius: 15px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.riff-news-item-title-new,
.riff-blog-item-title-new {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-color);
  margin-bottom: 12px;
  transition: color 0.3s ease;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.riff-news-link:hover .riff-news-item-title-new,
.riff-blog-link:hover .riff-blog-item-title-new {
  color: var(--primary-color);
}

.riff-blog-excerpt-new {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.6;
  margin-top: auto;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* セクションボタンの改良 */
.riff-news-button-new,
.riff-blog-button-new {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  color: white;
  padding: 16px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0, 124, 186, 0.3);
}

.riff-news-button-new:before,
.riff-blog-button-new:before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.6s ease;
}

.riff-news-button-new:hover:before,
.riff-blog-button-new:hover:before {
  left: 100%;
}

.riff-news-button-new:hover,
.riff-blog-button-new:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(0, 124, 186, 0.4);
  color: white;
}

.riff-news-button-new svg,
.riff-blog-button-new svg {
  transition: transform 0.3s ease;
}

.riff-news-button-new:hover svg,
.riff-blog-button-new:hover svg {
  transform: translateX(5px);
}

/* アニメーション効果 */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease forwards;
}

.fade-in[data-delay="0.1s"] {
  animation-delay: 0.1s;
}
.fade-in[data-delay="0.2s"] {
  animation-delay: 0.2s;
}
.fade-in[data-delay="0.3s"] {
  animation-delay: 0.3s;
}
.fade-in[data-delay="0.4s"] {
  animation-delay: 0.4s;
}
.fade-in[data-delay="0.5s"] {
  animation-delay: 0.5s;
}
.fade-in[data-delay="0.6s"] {
  animation-delay: 0.6s;
}
.fade-in[data-delay="0.7s"] {
  animation-delay: 0.7s;
}
.fade-in[data-delay="0.8s"] {
  animation-delay: 0.8s;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* セクション共通のスタイル */
.riff-news-section-fullwidth,
.riff-blog-section-fullwidth {
  padding: 80px 0;
  position: relative;
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

.riff-news-container,
.riff-blog-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 30px;
}

.riff-news-header,
.riff-blog-header {
  text-align: center;
  margin-bottom: 60px;
}

.riff-news-title-new,
.riff-blog-title-new {
  font-size: 3rem;
  font-weight: 800;
  color: var(--text-color);
  margin-bottom: 15px;
  position: relative;
  display: inline-block;
  letter-spacing: 2px;
}

.riff-news-title-new:after,
.riff-blog-title-new:after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  border-radius: 2px;
}

.riff-news-subtitle-new,
.riff-blog-subtitle-new {
  font-size: 1.2rem;
  color: var(--text-light);
  font-weight: 400;
  margin-bottom: 0;
}

.riff-news-button-wrap-new,
.riff-blog-button-wrap-new {
  text-align: center;
  margin-top: 50px;
}

/* ロード状態 */
.loading-state {
  display: none;
  text-align: center;
  padding: 40px;
  color: var(--text-light);
}

.loading-state.active {
  display: block;
}

.loading-spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 3px solid #f3f3f3;
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 15px;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* フィルター状態のトランジション */
.riff-news-item-new,
.riff-blog-item-new {
  transition: all 0.4s ease, opacity 0.3s ease, transform 0.3s ease;
}

.riff-news-item-new.filtered-out,
.riff-blog-item-new.filtered-out {
  opacity: 0;
  transform: scale(0.8);
  pointer-events: none;
}

/* レスポンシブ対応 */
@media (max-width: 1200px) {
  .riff-news-container,
  .riff-blog-container {
    padding: 0 25px;
  }

  .riff-news-grid-new,
  .riff-blog-grid-new {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
  }
}

@media (max-width: 768px) {
  .riff-news-section-fullwidth,
  .riff-blog-section-fullwidth {
    padding: 60px 0;
  }

  .riff-news-container,
  .riff-blog-container {
    padding: 0 20px;
  }

  .riff-news-header,
  .riff-blog-header {
    margin-bottom: 40px;
  }

  .riff-news-title-new,
  .riff-blog-title-new {
    font-size: 2.2rem;
  }

  .riff-news-subtitle-new,
  .riff-blog-subtitle-new {
    font-size: 1rem;
  }

  .riff-news-grid-new,
  .riff-blog-grid-new {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .riff-news-filter-buttons,
  .riff-blog-filter-buttons {
    gap: 8px;
  }

  .riff-news-filter-btn,
  .riff-blog-filter-btn {
    padding: 10px 18px;
    font-size: 13px;
  }

  .riff-news-content-new,
  .riff-blog-content-new {
    padding: 20px;
  }

  .riff-news-item-title-new,
  .riff-blog-item-title-new {
    font-size: 16px;
  }

  .riff-news-button-wrap-new,
  .riff-blog-button-wrap-new {
    margin-top: 40px;
  }

  .riff-news-button-new,
  .riff-blog-button-new {
    padding: 14px 28px;
    font-size: 15px;
  }
}

@media (max-width: 480px) {
  .riff-news-container,
  .riff-blog-container {
    padding: 0 15px;
  }

  .riff-news-title-new,
  .riff-blog-title-new {
    font-size: 1.8rem;
    letter-spacing: 1px;
  }

  .riff-news-filters-new,
  .riff-blog-filters-new {
    padding: 15px;
    margin-bottom: 30px;
  }

  .riff-news-filter-buttons,
  .riff-blog-filter-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .riff-news-filter-btn,
  .riff-blog-filter-btn {
    text-align: center;
  }

  .riff-news-meta-new,
  .riff-blog-meta-new {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

/**
 * RIFF テーマ フェードアニメーション CSS
 * バージョン: 1.0.0
 * 既存スタイルと競合しないよう独自のクラス名を使用
 */

/* ベースとなるフェード効果の設定 */
.fadeUpTrigger,
.fadeDownTrigger,
.fadeLeftTrigger,
.fadeRightTrigger {
  opacity: 0;
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  transform-origin: center;
}

/* 上からフェードイン効果 */
.fadeUpTrigger {
  transform: translateY(-60px);
}

.fadeUpTrigger.riff-fade-visible {
  opacity: 1;
  transform: translateY(0);
}

/* 下からフェードイン効果 */
.fadeDownTrigger {
  transform: translateY(60px);
}

.fadeDownTrigger.riff-fade-visible {
  opacity: 1;
  transform: translateY(0);
}

/* 左からフェードイン効果 */
.fadeLeftTrigger {
  transform: translateX(-60px);
}

.fadeLeftTrigger.riff-fade-visible {
  opacity: 1;
  transform: translateX(0);
}

/* 右からフェードイン効果 */
.fadeRightTrigger {
  transform: translateX(60px);
}

.fadeRightTrigger.riff-fade-visible {
  opacity: 1;
  transform: translateX(0);
}

/* 遅延アニメーション用クラス（オプション） */
.riff-fade-delay-100 {
  transition-delay: 0.1s;
}

.riff-fade-delay-200 {
  transition-delay: 0.2s;
}

.riff-fade-delay-300 {
  transition-delay: 0.3s;
}

.riff-fade-delay-400 {
  transition-delay: 0.4s;
}

.riff-fade-delay-500 {
  transition-delay: 0.5s;
}

/* タブレット用調整 */
@media (max-width: 1024px) and (min-width: 769px) {
  .fadeUpTrigger,
  .fadeDownTrigger {
    transform: translateY(-40px);
  }

  .fadeDownTrigger {
    transform: translateY(40px);
  }

  .fadeLeftTrigger,
  .fadeRightTrigger {
    transform: translateX(-40px);
  }

  .fadeRightTrigger {
    transform: translateX(40px);
  }

  .fadeUpTrigger,
  .fadeDownTrigger,
  .fadeLeftTrigger,
  .fadeRightTrigger {
    transition-duration: 0.6s;
  }
}

/* モバイル用調整（控えめなアニメーション） */
@media (max-width: 768px) {
  .fadeUpTrigger,
  .fadeDownTrigger {
    transform: translateY(-20px);
  }

  .fadeDownTrigger {
    transform: translateY(20px);
  }

  .fadeLeftTrigger,
  .fadeRightTrigger {
    transform: translateX(-20px);
  }

  .fadeRightTrigger {
    transform: translateX(20px);
  }

  .fadeUpTrigger,
  .fadeDownTrigger,
  .fadeLeftTrigger,
  .fadeRightTrigger {
    transition-duration: 0.4s;
  }

  /* 遅延を短縮（モバイルでは素早く表示） */
  .riff-fade-delay-100 {
    transition-delay: 0.05s;
  }

  .riff-fade-delay-200 {
    transition-delay: 0.1s;
  }

  .riff-fade-delay-300 {
    transition-delay: 0.15s;
  }

  .riff-fade-delay-400 {
    transition-delay: 0.2s;
  }

  .riff-fade-delay-500 {
    transition-delay: 0.25s;
  }
}

/* 極小スマートフォン用 */
@media (max-width: 480px) {
  .fadeUpTrigger,
  .fadeDownTrigger {
    transform: translateY(-15px);
  }

  .fadeDownTrigger {
    transform: translateY(15px);
  }

  .fadeLeftTrigger,
  .fadeRightTrigger {
    transform: translateX(-15px);
  }

  .fadeRightTrigger {
    transform: translateX(15px);
  }

  .fadeUpTrigger,
  .fadeDownTrigger,
  .fadeLeftTrigger,
  .fadeRightTrigger {
    transition-duration: 0.3s;
  }
}

/* アニメーション設定を無効にするユーザー向け（アクセシビリティ配慮） */
@media (prefers-reduced-motion: reduce) {
  .fadeUpTrigger,
  .fadeDownTrigger,
  .fadeLeftTrigger,
  .fadeRightTrigger {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .fadeUpTrigger.riff-fade-visible,
  .fadeDownTrigger.riff-fade-visible,
  .fadeLeftTrigger.riff-fade-visible,
  .fadeRightTrigger.riff-fade-visible {
    opacity: 1;
    transform: none;
  }
}

/* デバッグ用（開発時のみ使用） */
.riff-fade-debug .fadeUpTrigger,
.riff-fade-debug .fadeDownTrigger,
.riff-fade-debug .fadeLeftTrigger,
.riff-fade-debug .fadeRightTrigger {
  border: 2px dashed #ff6b35;
  position: relative;
}

.riff-fade-debug .fadeUpTrigger::before,
.riff-fade-debug .fadeDownTrigger::before,
.riff-fade-debug .fadeLeftTrigger::before,
.riff-fade-debug .fadeRightTrigger::before {
  content: "FADE ELEMENT";
  position: absolute;
  top: -20px;
  left: 0;
  background: #ff6b35;
  color: white;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 3px;
  z-index: 9999;
}

/* パフォーマンス最適化 */
.fadeUpTrigger,
.fadeDownTrigger,
.fadeLeftTrigger,
.fadeRightTrigger {
  will-change: transform, opacity;
}

.fadeUpTrigger.riff-fade-visible,
.fadeDownTrigger.riff-fade-visible,
.fadeLeftTrigger.riff-fade-visible,
.fadeRightTrigger.riff-fade-visible {
  will-change: auto;
}