/* セクション別スタイル */

/* ヒーローセクション */
.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 90vh;
  text-align: center;
  background: transparent;
}

.hero-content {
  width: 100%;
  padding: var(--spacing-lg) var(--container-padding);
}


.hero-logo img {
  max-width: min(800px, 80vw);
  height: auto;
  display: block;
  margin: 0 auto;
}

.hero-title {
  font-size: var(--font-size-h1);
  font-family: var(--font-family-heading);
  line-height: var(--line-height-heading);
  color: #FFFFFF;
  margin-bottom: var(--spacing-md);
  font-weight: bold;
}

.hero-subtitle {
  font-size: var(--font-size-large);
  color: #FFFFFF;
  line-height: var(--line-height-base);
  margin-bottom: var(--spacing-xl);
}



/* PHILOSOPHYセクション */
.philosophy {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding-block: var(--section-space-y);
}

.philosophy-content {
  width: 100%;
  padding: var(--spacing-lg) var(--container-padding);
}

.section-title {
  font-size: var(--font-size-h2);
  font-family: var(--font-family-heading);
  line-height: var(--line-height-heading);
  color: var(--color-primary);
  text-align: center;
  margin-bottom: var(--spacing-xl);
  font-weight: bold;
}

.parallax-content .section-title{
  color: var(--color-text-white);
}

.philosophy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.philosophy-item {
  background-color: rgba(255, 255, 255, 0.95);
  padding: var(--spacing-lg);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.philosophy-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.philosophy-item__title {
  font-size: var(--font-size-h3);
  font-family: var(--font-family-heading);
  line-height: var(--line-height-heading);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  font-weight: bold;
}

.philosophy-item__text {
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: var(--line-height-base);
}

/* BPロゴ付きアイテム */
.philosophy-item--bp {
  background: linear-gradient(135deg, rgba(0, 51, 102, 0.05) 0%, rgba(255, 255, 255, 0.95) 100%);
  border: 2px solid var(--color-secondary);
}

.bp-logo {
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.bp-logo img {
  max-width: 200px;
  height: auto;
  display: inline-block;
}

/* WHAT WE DOセクション */
.what-we-do {
  padding-block: var(--section-space-y);
  background-color: var(--color-bg-light);
}

.what-we-do .container {
  padding: 0 var(--container-padding);
}

.what-we-do-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.what-we-do-item {
  background-color: var(--color-bg);
  padding: var(--spacing-lg);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  text-align: center;
}

.what-we-do-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.07);
}

.what-we-do-item__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg-light);
  border-radius: 50%;
  transition: background-color var(--transition-base);
}

.what-we-do-item:hover .what-we-do-item__icon {
  background-color: rgba(0, 51, 102, 0.1);
}

.what-we-do-item__icon img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.what-we-do-item__title {
  font-size: var(--font-size-h3);
  font-family: var(--font-family-heading);
  line-height: var(--line-height-heading);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  font-weight: bold;
}

.what-we-do-item__description {
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: var(--line-height-base);
  text-align: left;
}

/* CASE STORYセクション / 過去実績セクション */
.case-story,
.achievements {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding-block: var(--section-space-y);
  background: transparent;
  position: relative;
  overflow: hidden;
}

.case-story-content,
.achievements-content {
  width: 100%;
  padding: var(--spacing-lg) var(--container-padding);
  position: relative;
  z-index: 1;
}

/* 過去実績セクションのヘッダー */
.case-story-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.case-story-header__title {
  flex: 1;
  min-width: 200px;
}

.case-story-header .section-title {
  text-align: left;
  margin-bottom: var(--spacing-xs);
}

.case-story-header .section-lead {
  text-align: left;
  font-size: var(--font-size-large);
  color: var(--color-text-white);
}

/* 過去実績の各セクション */
.achievements-section {
  background-color: rgba(255, 255, 255, 0.95);
  padding: var(--spacing-lg);
  border-radius: 12px;
  margin-bottom: var(--spacing-lg);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.achievements-subtitle {
  font-size: var(--font-size-h3);
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-heading);
  border-bottom: 2px solid var(--color-secondary);
  padding-bottom: var(--spacing-sm);
}

/* 参加企業リスト */
.achievements-companies {
  margin-top: var(--spacing-md);
}

.achievements-company-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-sm);
  list-style: none;
  padding: 0;
  margin: 0 0 var(--spacing-md) 0;
}

@media (min-width: 768px) {
  .achievements-company-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.achievements-company-item {
  padding: var(--spacing-sm);
  border: 1px solid rgba(0, 51, 102, 0.12);
  border-radius: 6px;
  background-color: var(--color-bg-light);
}

.achievements-company-name {
  font-size: var(--font-size-base);
  font-weight: bold;
  line-height: var(--line-height-base);
}

.achievements-company-link {
  color: var(--color-text);
  text-decoration: none;
}

.achievements-company-link:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

.achievements-company-link:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
  border-radius: 4px;
}

.achievements-company-link-icon {
  width: 14px;
  height: 14px;
  margin-left: 6px;
  vertical-align: middle;
}

.achievements-company-category {
  margin-top: 6px;
  font-size: var(--font-size-small);
  color: var(--color-text-light);
}

.achievements-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-sm);
  list-style: none;
  padding: 0;
  margin: 0 0 var(--spacing-md) 0;
}

.achievements-list__item {
  font-size: var(--font-size-base);
  color: var(--color-text);
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--color-bg-light);
  border-radius: 4px;
  transition: all var(--transition-base);
}

.achievements-list__item:hover {
  background-color: rgba(0, 51, 102, 0.08);
  transform: translateX(4px);
}

.achievements-note {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  font-style: italic;
  margin-top: var(--spacing-md);
}

/* 発表論文・共同研究カード */
.achievements-papers,
.achievements-collaborations {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.achievement-card {
  background-color: var(--color-bg);
  padding: var(--spacing-md);
  border-radius: 8px;
  border-left: 4px solid var(--color-secondary);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
  transition: all var(--transition-base);
}

.achievement-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  border-left-color: var(--color-accent);
}

.achievement-card--highlight {
  border-left-width: 6px;
  background: linear-gradient(135deg, rgba(0, 51, 102, 0.03) 0%, var(--color-bg) 100%);
}

.achievement-card__title {
  font-size: 18px;
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  line-height: var(--line-height-heading);
}

.achievement-card__meta {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
  line-height: 1.6;
}

.achievement-card__authors {
  font-weight: 500;
  color: var(--color-text);
}

.achievement-card__journal,
.achievement-card__year {
  color: var(--color-text-light);
}

.achievement-card__partner {
  font-size: var(--font-size-base);
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

.achievement-card__partner strong {
  color: var(--color-secondary);
  font-weight: bold;
}

.achievement-card__description {
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: var(--line-height-base);
}

/* 共同研究プレスリリース */
.joint-research-feature {
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 12px;
  background-color: #f7f7f7;
  padding: clamp(1rem, 2vw, 2rem);
}

.joint-research-feature__headline {
  background-color: #ece3d2;
  font-size: clamp(1.35rem, 2.3vw, 2.8rem);
  font-weight: 700;
  line-height: 1.3;
  padding: clamp(0.85rem, 1.2vw, 1.25rem) clamp(1rem, 2vw, 2rem);
  margin: 0 0 clamp(1rem, 2vw, 2rem) 0;
}

.joint-research-feature__body {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: clamp(1rem, 2vw, 2.5rem);
  align-items: center;
}

.joint-research-feature__media {
  border-right: 1px solid rgba(0, 0, 0, 0.3);
  padding-right: clamp(1rem, 2vw, 2rem);
}

.joint-research-feature__media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
}

.joint-research-feature__content {
  display: flex;
  flex-direction: column;
  gap: clamp(0.85rem, 1.5vw, 1.25rem);
}

.joint-research-feature__title {
  font-size: clamp(1.2rem, 2vw, 2.25rem);
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
}

.joint-research-feature__description {
  font-size: clamp(1rem, 1.45vw, 1.12rem);
  line-height: 1.6;
  margin: 0;
}

.joint-research-feature__link {
  align-self: flex-end;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 180px;
  min-height: 64px;
  padding: 0.75rem 1.5rem;
  border: 1px solid rgba(0, 0, 0, 0.14);
  border-radius: 16px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
  background-color: #f8f8f8;
  color: #5a6fe8;
  font-size: clamp(1.2rem, 1.8vw, 2rem);
  line-height: 1;
  text-decoration: none;
  transition: transform var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base);
}

.joint-research-feature__link:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  background-color: #ffffff;
}

.joint-research-feature__link:focus-visible {
  outline: 2px solid #5a6fe8;
  outline-offset: 2px;
}

.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.blog-card {
  background-color: var(--color-bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.blog-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.blog-card__link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.blog-card__thumbnail {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--color-bg-light);
  position: relative;
}

.blog-card__thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.blog-card:hover .blog-card__thumbnail img {
  transform: scale(1.05);
}

.blog-card__content {
  padding: var(--spacing-md);
}

.blog-card__category {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-small);
  font-weight: bold;
  color: var(--color-bg);
  background-color: var(--color-secondary);
  border-radius: 20px;
  margin-bottom: var(--spacing-sm);
  transition: background-color var(--transition-base);
}

.blog-card:hover .blog-card__category {
  background-color: var(--color-accent);
}

.blog-card__title {
  font-size: 20px;
  font-family: var(--font-family-heading);
  line-height: var(--line-height-heading);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  font-weight: bold;
  min-height: 2.8em;
}

.blog-card__footer {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.blog-card__read-more {
  font-size: var(--font-size-small);
  font-weight: bold;
  color: var(--color-secondary);
  letter-spacing: 0.05em;
  transition: color var(--transition-base);
  position: relative;
  padding-right: 20px;
}

.blog-card__read-more::after {
  content: '→';
  position: absolute;
  right: 0;
  transition: transform var(--transition-base);
}

.blog-card:hover .blog-card__read-more {
  color: var(--color-accent);
}

.blog-card:hover .blog-card__read-more::after {
  transform: translateX(4px);
}

/* TEACHERSセクション */
.teachers {
  padding-block: var(--section-space-y);
  background-color: var(--color-bg);
}

.teachers .container {
  padding: 0 var(--container-padding);
}

.teachers-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(3rem, 6vw, 6rem);
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.teacher-card {
  display: grid;
  grid-template-columns: minmax(180px, 220px) minmax(0, 1fr);
  grid-template-rows: auto auto 1fr;
  column-gap: var(--spacing-lg);
  row-gap: var(--spacing-md);
  align-items: start;
}

.teacher-card:hover {
  transform: none;
  box-shadow: none;
}

.teacher-card__photo {
  grid-column: 1;
  grid-row: 1 / span 2;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  position: relative;
}

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

.teacher-card:hover .teacher-card__photo img {
  transform: none;
}

.teacher-card__content {
  display: contents;
}

.teacher-card__name {
  grid-column: 2;
  grid-row: 2;
  align-self: start;
  font-size: 34px;
  font-family: var(--font-family-base);
  line-height: var(--line-height-heading);
  color: var(--color-text);
  margin: 0;
  font-weight: bold;
}

.teacher-card__title {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
  font-weight: normal;
}

.teacher-card__info {
  margin-bottom: var(--spacing-md);
}

.teacher-card__info:last-child {
  margin-bottom: 0;
}

.teacher-card__info-title {
  font-size: var(--font-size-small);
  font-weight: bold;
  color: var(--color-secondary);
  margin-bottom: var(--spacing-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.teacher-card__specialty,
.teacher-card__role {
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: var(--line-height-base);
}

.teacher-card__affiliation {
  grid-column: 2;
  grid-row: 1;
  align-self: start;
  font-size: var(--font-size-base);
  color: var(--color-text);
  margin: 0 0 var(--spacing-xs) 0;
}

.teacher-card__text {
  grid-column: 1 / -1;
  grid-row: 3;
}

.teacher-card__text p {
  margin: 0;
  line-height: 2;
}

/* SCHEDULE ARCHIVEセクション */
.schedule-archive {
  padding-block: var(--section-space-y);
  background-color: var(--color-bg-light);
}

.schedule-archive .container {
  padding: 0 var(--container-padding);
}

/* 過去配信プレイリストカード */
.archive-playlists {
  max-width: var(--container-max-width);
  margin: 0 auto var(--spacing-xl);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-md);
}

.archive-playlist-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  background-color: #FFFFFF;
  border: 2px solid rgba(0, 0, 0, 0.08);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
  text-decoration: none;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.archive-playlist-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
  border-color: rgba(0, 51, 102, 0.25);
}

.archive-playlist-card:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.archive-playlist-card__media {
  margin: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.archive-playlist-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.archive-playlist-card:hover .archive-playlist-card__image {
  transform: scale(1.05);
}

.archive-playlist-card__title {
  margin: 0;
  padding: var(--spacing-lg) var(--spacing-md);
  color: #1F1D22;
  font-size: clamp(1.125rem, 1.45vw, 1.875rem);
  line-height: 1.4;
  font-weight: 700;
}

/* アコーディオン */
.accordion {
  max-width: var(--container-max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.accordion-item {
  background-color: var(--color-bg);
  border-radius: 12px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
  overflow: hidden;
  transition: all var(--transition-base);
  border: 2px solid transparent;
}

.accordion-item:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  border-color: rgba(0, 51, 102, 0.2);
}

.accordion-item[open] {
  box-shadow: 0 2px 10px rgba(0, 51, 102, 0.08);
  border-color: var(--color-secondary);
}

.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  user-select: none;
  background-color: var(--color-bg);
  transition: all var(--transition-base);
  list-style: none;
  position: relative;
}

.accordion-header::-webkit-details-marker {
  display: none;
}

.accordion-header::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background-color: var(--color-secondary);
  transform: scaleY(0);
  transition: transform var(--transition-base);
  transform-origin: top;
}

.accordion-item[open] .accordion-header::before {
  transform: scaleY(1);
}

.accordion-header:hover {
  background-color: rgba(0, 51, 102, 0.03);
  padding-left: calc(var(--spacing-lg) + 8px);
}

.accordion-header:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
}

.accordion-title {
  font-size: 20px;
  font-family: var(--font-family-heading);
  font-weight: bold;
  color: var(--color-primary);
  line-height: var(--line-height-heading);
  transition: color var(--transition-base);
}

.accordion-item[open] .accordion-title {
  color: var(--color-secondary);
}

.accordion-icon {
  width: 32px;
  height: 32px;
  position: relative;
  flex-shrink: 0;
  transition: transform var(--transition-base);
  border-radius: 50%;
  background-color: rgba(0, 51, 102, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
}

.accordion-header:hover .accordion-icon {
  background-color: rgba(0, 51, 102, 0.15);
  transform: scale(1.1);
}

.accordion-item[open] .accordion-icon {
  background-color: var(--color-secondary);
  transform: rotate(180deg);
}

.accordion-icon::before,
.accordion-icon::after {
  content: '';
  position: absolute;
  background-color: var(--color-secondary);
  transition: all var(--transition-base);
  border-radius: 2px;
}

.accordion-item[open] .accordion-icon::before,
.accordion-item[open] .accordion-icon::after {
  background-color: var(--color-bg);
}

.accordion-icon::before {
  width: 16px;
  height: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.accordion-icon::after {
  width: 2px;
  height: 16px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: all var(--transition-base);
}

.accordion-item[open] .accordion-icon::after {
  transform: translate(-50%, -50%) rotate(90deg) scaleY(0);
  opacity: 0;
}

.accordion-content {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  animation: accordion-open var(--transition-base) ease-out;
}

@keyframes accordion-open {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* スケジュールテーブル */
.schedule-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background-color: var(--color-bg);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.schedule-table thead {
  background: linear-gradient(135deg, var(--color-secondary) 0%, rgba(0, 51, 102, 0.85) 100%);
}

.schedule-table th {
  padding: var(--spacing-xs) var(--spacing-xs);
  text-align: left;
  font-size: var(--font-size-base);
  font-weight: bold;
  color: var(--color-bg);
  border: none;
  letter-spacing: 0.03em;
}

.schedule-table th:first-child {
  width: 120px;
  border-top-left-radius: 8px;
}

.schedule-table th:last-child {
  border-top-right-radius: 8px;
}

.schedule-table td {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: var(--line-height-base);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.schedule-table td:first-child {
  font-weight: bold;
  color: var(--color-secondary);
  background-color: rgba(0, 51, 102, 0.03);
}

.schedule-table tbody tr:last-child td {
  border-bottom: none;
}

.schedule-table tbody tr:last-child td:first-child {
  border-bottom-left-radius: 8px;
}

.schedule-table tbody tr:last-child td:last-child {
  border-bottom-right-radius: 8px;
}

.schedule-table tbody tr {
  transition: all var(--transition-fast);
}

.schedule-table tbody tr:hover {
  background-color: rgba(0, 51, 102, 0.05);
  transform: scale(1.01);
}

.schedule-table tbody tr:hover td {
  color: var(--color-primary);
}

.schedule-table tbody tr:hover td:first-child {
  background-color: rgba(0, 51, 102, 0.1);
}

/* PARTNERSセクション */
.partners {
  padding-block: var(--section-space-y);
  background-color: var(--color-bg);
}

.partners .container {
  padding: 0 var(--container-padding);
}

.partners .section-title {
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.partners .section-lead {
  text-align: center;
  font-size: var(--font-size-large);
  color: var(--color-text);
  margin-bottom: var(--spacing-xl);
}

.partners-intro {
  max-width: 800px;
  margin: 0 auto var(--spacing-lg);
  text-align: center;
}

.partners-intro__text {
  font-size: var(--font-size-large);
  color: var(--color-text);
  line-height: var(--line-height-base);
}

/* 連携大学リスト */
.partner-universities-list {
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.partner-universities-list__container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  background-color: var(--color-bg);
  border-radius: 12px;
  padding: var(--spacing-lg);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.partner-universities-list__logo {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-md);
}

.partner-universities-list__logo-image {
  max-width: 200px;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.partner-universities-list__content {
  width: 100%;
}

.partners-table-wrapper {
  max-width: var(--container-max-width);
  margin: 0 auto var(--spacing-lg);
  overflow-x: auto;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.partners-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background-color: var(--color-bg);
  border-radius: 12px;
  overflow: hidden;
}

.partners-table thead {
  background: linear-gradient(135deg, var(--color-primary) 0%, rgba(75, 46, 131, 0.85) 100%);
}

.partners-table th {
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: left;
  font-size: var(--font-size-base);
  font-weight: bold;
  color: var(--color-bg);
  border: none;
  letter-spacing: 0.03em;
}

.partners-table th:first-child {
  border-top-left-radius: 12px;
}

.partners-table th:last-child {
  border-top-right-radius: 12px;
  text-align: center;
}

.partners-table td {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: var(--line-height-base);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.partners-table td:last-child {
  text-align: center;
}

.partners-table--lecture th:last-child,
.partners-table--lecture td:last-child {
  text-align: left;
}

.partners-table tbody tr:last-child td {
  border-bottom: none;
}

.partners-table tbody tr:last-child td:first-child {
  border-bottom-left-radius: 12px;
}

.partners-table tbody tr:last-child td:last-child {
  border-bottom-right-radius: 12px;
}

.partners-table tbody tr {
  transition: all var(--transition-fast);
}

.partners-table tbody tr:hover {
  background-color: rgba(75, 46, 131, 0.03);
}

.partners-table tbody tr:hover td {
  color: var(--color-primary);
}

.partners-link {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-small);
  font-weight: bold;
  color: var(--color-secondary);
  text-decoration: none;
  border: 2px solid var(--color-secondary);
  border-radius: 20px;
  transition: all var(--transition-base);
}

.partners-link:hover {
  color: var(--color-bg);
  background-color: var(--color-secondary);
  transform: translateY(-2px);
  box-shadow: 0 2px 6px rgba(0, 51, 102, 0.2);
}

.partners-link:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.partners-note {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.partners-note__text {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  line-height: var(--line-height-base);
  font-style: italic;
}

.partners-featured-article {
  max-width: 420px;
  margin: 0 auto;
}

.partners-featured-article__lead {
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-base);
  color: var(--color-text-light);
}

.partners-featured-article__card {
  border-radius: 16px;
  overflow: hidden;
  background-color: #ECEEF2;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.partners-featured-article__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.12);
}

.partners-featured-article__link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.partners-featured-article__thumbnail {
  width: 100%;
  aspect-ratio: 16 / 8.2;
  overflow: hidden;
  background-color: var(--color-bg-light);
}

.partners-featured-article__thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.partners-featured-article__content {
  padding: clamp(12px, 1.5vw, 18px);
}

.partners-featured-article__label {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-bg);
  background-color: #2F6586;
}

.partners-featured-article__title {
  margin: 0;
  color: #2F6586;
  font-size: clamp(1.1rem, 2.2vw, 1.6rem);
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.partners-featured-article__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-secondary);
}

.partners-featured-article__cta::after {
  content: '→';
  transition: transform var(--transition-base);
}

.partners-featured-article__card:hover .partners-featured-article__cta::after {
  transform: translateX(4px);
}

.partners-featured-article__link:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: -3px;
}

/* CONTACT / REGISTRATIONセクション */
.contact {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-block: var(--section-space-y);
  background: transparent;
  position: relative;
  overflow: hidden;
}
.contact.parallax-section {
  min-height: 50vh;
}

.contact-content {
  width: 100%;
  padding: var(--spacing-lg) var(--container-padding);
  position: relative;
  z-index: 1;
  min-height: 50vh;
}

.contact .section-title {
  color: #FFFFFF;
}

.contact-intro {
  max-width: 800px;
  margin: 0 auto var(--spacing-xl);
  text-align: center;
}

.contact-intro__text {
  font-size: var(--font-size-large);
  color: #FFFFFF;
  line-height: var(--line-height-base);
}

.contact-cta {
  margin-bottom: var(--spacing-xl);
}

.application-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.application-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  text-decoration: none;
  padding: 10px 18px;
  min-height: 136px;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.application-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.application-card:focus {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.application-card--tohoku {
  background-color: #3E1485;
  color: #FFFFFF;
}

.application-card--kumamoto {
  background-color: #FFFFFF;
  border: 4px solid #FACD00;
  color: #29275E;
}

.application-card__logo {
  height: auto;
  width: auto;
  flex-shrink: 0;
}

.application-card__logo--tohoku {
  width: 110px;
}

.application-card__logo--kumamoto {
  width: 112px;
}

.application-card__text-wrap {
  flex: 1;
}

.application-card__text {
  margin: 0;
  font-size: clamp(30px, 2vw, 52px);
  font-weight: 700;
  line-height: 1.18;
}

.application-card__icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: auto;
}

.application-card__icon svg {
  width: clamp(52px, 4vw, 92px);
  height: clamp(52px, 4vw, 92px);
}

.application-card--tohoku .application-card__icon {
  color: #FFFFFF;
}

.application-card--kumamoto .application-card__icon {
  color: #29275E;
}

.application-card--kumamoto:hover {
  box-shadow: 0 8px 20px rgba(41, 39, 94, 0.2);
}

.application-card--tohoku:hover {
  box-shadow: 0 8px 20px rgba(62, 20, 133, 0.3);
  color: #fcfcfc;
}

@media (min-width: 768px) {
  .application-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-lg);
  }
}

@media (max-width: 767px) {
  .application-card {
    flex-direction: column;
    justify-content: center;
    text-align: center;
    min-height: 0;
    padding: var(--spacing-md);
  }

  .application-card__text-wrap {
    width: 100%;
  }

  .application-card__text {
    font-size: clamp(18px, 6vw, 28px);
  }

  .application-card__icon {
    margin-left: 0;
  }

  .application-card__logo--tohoku {
    width: 95px;
  }

  .application-card__logo--kumamoto {
    width: 100px;
  }
}

.contact-cta .cta-button {
  min-width: 280px;
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  justify-content: center;
  align-items: center;
  text-align: center;
}

.contact-cta .cta-button .cta-button__sub {
  margin-top: 2px;
}

.contact-info {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  background-color: rgba(255, 255, 255, 0.95);
  padding: var(--spacing-lg);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.contact-info__title {
  font-size: var(--font-size-h3);
  font-family: var(--font-family-heading);
  line-height: var(--line-height-heading);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  font-weight: bold;
}

.contact-info__text {
  margin-bottom: var(--spacing-sm);
}

.contact-email {
  display: inline-block;
  font-size: var(--font-size-large);
  font-weight: bold;
  color: var(--color-secondary);
  text-decoration: none;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 8px;
  transition: all var(--transition-base);
}

.contact-email:hover {
  color: var(--color-bg);
  background-color: var(--color-secondary);
  transform: translateY(-2px);
  box-shadow: 0 2px 6px rgba(0, 51, 102, 0.2);
}

.contact-email:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.contact-info__note {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  line-height: var(--line-height-base);
  margin-top: var(--spacing-md);
}

/* 講座概要セクション */
.course-overview {
  padding-block: var(--section-space-y);
  background-color: #FFFFFF;
}

.course-overview .container {
  padding: 0 var(--container-padding);
}

.course-overview .section-title {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.course-overview__lead-title {
  text-align: center;
  font-size: var(--font-size-h3);
  line-height: var(--line-height-heading);
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.course-overview__lead-text {
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
  line-height: var(--line-height-base);
}

.course-overview .info-list {
  margin-top: var(--spacing-lg);
}

.course-overview .info-list__item {
  align-items: stretch;
  text-align: left;
  padding: var(--spacing-lg);
  border: 1px solid rgba(0, 51, 102, 0.14);
  border-top: 5px solid var(--color-secondary);
}

.course-overview .info-list__item:hover {
  transform: translateY(-6px);
  box-shadow: 0 4px 8px rgba(0, 51, 102, 0.16);
}

.course-overview .info-list__title {
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-h3);
}

/* 講座紹介セクション */
.course-types {
  padding-block: var(--section-space-y);
  background-color: var(--color-bg-light);
}

.course-types .container {
  padding: 0 var(--container-padding);
}

.course-types .section-title {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.course-types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  max-width: var(--container-max-width);
  margin: 0 auto;
}

/* コンテンツセクション（講座タイプカード） */
.content-section {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: var(--spacing-lg);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: all var(--transition-base);
}

.content-section:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.content-section__container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--spacing-md);
}

.content-section__media {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.content-section__image {
  max-width: 300px;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.content-section__text {
  width: 100%;
}

.content-section__media + .content-section__text {
  text-align: left;
  margin-top: var(--spacing-sm);
  padding-inline: var(--spacing-md);
}

.content-section__title {
  font-size: var(--font-size-h3);
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  line-height: var(--line-height-heading);
}

.content-section__body {
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: var(--line-height-base);
}

/* 分岐ボタンセクション */
.cta-branch {
  padding-block: var(--section-space-y);
  background-color: var(--color-bg-light);
}

.cta-branch .container {
  padding: 0 var(--container-padding);
}

.cta-branch__buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  align-items: stretch;
  flex-wrap: wrap;
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.cta-branch__buttons .cta-button {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  min-width: 280px;
  padding: var(--spacing-md) var(--spacing-lg);
}

/* 講義内容セクション */
.course-content {
  padding-block: var(--section-space-y);
  background-color: #FFFFFF;
}

.course-content .container {
  padding: 0 var(--container-padding);
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.course-content .section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.course-content__subtitle {
  font-size: var(--font-size-h3);
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-heading);
}

.course-content__skills-visual {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(0, 1.35fr);
  row-gap: var(--spacing-xl);
  column-gap: clamp(48px, 6vw, 96px);
  align-items: start;
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-lg);
}

.course-content__skills-kicker {
  margin-bottom: var(--spacing-sm);
  font-family: var(--font-family-heading);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #B6BFCB;
  line-height: 1;
}

.course-content__skills-intro .course-content__subtitle {
  margin-bottom: var(--spacing-sm);
}

.course-content__skills-intro .course-content__description {
  margin-bottom: 0;
}

.course-content__skills-steps {
  display: grid;
  gap: var(--spacing-lg);
}

.course-content__skills-step {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: var(--spacing-md);
  align-items: start;
}

.course-content__skills-step-icon {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 2px;
}

.course-content__skills-step-icon [class^=bindicon-],
.course-content__skills-step-icon [class*=" bindicon-"] {
  font-size: 44px;
  color: #111111;
  line-height: 1;
}

.course-content__skills-step-body {
  padding-left: var(--spacing-md);
  border-left: 1px solid rgba(0, 0, 0, 0.26);
}

.course-content__skills-step-title {
  margin: 0 0 var(--spacing-sm);
  font-family: var(--font-family-heading);
  font-size: clamp(1.25rem, 1.8vw, 2rem);
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: #111111;
}

.course-content__skills-step .course-content__description {
  margin-bottom: 0;
}

/* オープンバッジセクション */
.course-content__badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-lg);
  background-color: var(--color-bg-light);
  border-radius: 12px;
}

.course-content__badge-image {
  width: 100%;
  max-width: 200px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.course-content__badge-image img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.course-content__badge-text {
  width: 100%;
  text-align: center;
}

.course-content__description {
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: var(--line-height-base);
  margin-bottom: var(--spacing-sm);
}

/* 取得可能なスキルセクション */
.course-content__skills {
  margin-bottom: var(--spacing-xl);
}

.course-content__skills .info-list {
  margin-top: var(--spacing-md);
}

.course-content__skills-group {
  margin-top: var(--spacing-lg);
}

.course-content__skills-group-title {
  font-size: var(--font-size-h3);
  font-family: var(--font-family-heading);
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.course-content__skills .info-list__item {
  align-items: stretch;
  text-align: left;
  padding: var(--spacing-lg);
  border: 1px solid rgba(0, 51, 102, 0.14);
  border-top: 5px solid var(--color-secondary);
}

.course-content__skills .info-list__item:hover {
  transform: translateY(-6px);
  box-shadow: 0 4px 8px rgba(0, 51, 102, 0.16);
}

/* 講座の魅力セクション */
.course-content__appeal {
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-lg);
  background-color: var(--color-bg-light);
  border-radius: 12px;
}

.course-content__appeal-text {
  margin-top: var(--spacing-md);
}

.course-content__appeal-text p {
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: var(--line-height-base);
  margin-bottom: var(--spacing-md);
}

.course-content__appeal-text p:last-child {
  margin-bottom: 0;
}

/* 申込みボタンセクション */
.course-content__cta {
  text-align: center;
  margin-bottom: 6em;
}

.course-content__cta .course-content__subtitle {
  text-align: center;
}

.course-content__cta .application-cards {
  margin-top: var(--spacing-md);
}

/* パララックス背景の隙間セクション */
.parallax-break {
  min-height: 30vh;
  position: relative;
  background: transparent;
  overflow: hidden;
}

/* 受講方法セクション */
.enrollment {
  padding-block: var(--section-space-y);
  background-color: #FFFFFF;
}

.enrollment .container {
  padding: 0 var(--container-padding);
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.enrollment .section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.enrollment-subtitle {
  font-size: var(--font-size-h3);
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-heading);
}

.enrollment .info-list {
  margin-top: var(--spacing-lg);
}

.enrollment .info-list__item {
  align-items: stretch;
  text-align: left;
  padding: var(--spacing-lg);
  border: 1px solid rgba(0, 51, 102, 0.14);
  border-top: 5px solid var(--color-secondary);
}

.enrollment .info-list__item:hover {
  transform: translateY(-6px);
  box-shadow: 0 4px 8px rgba(0, 51, 102, 0.16);
}

.enrollment .info-list__title {
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-h3);
}

/* 受講対象者セクション */
.enrollment-intro {
  margin-bottom: var(--spacing-xl);
}

/* 受講形態セクション */
.enrollment-format {
  margin-bottom: var(--spacing-xl);
}

/* カリキュラム詳細へのボタン */
.enrollment-cta {
  text-align: center;
  margin-top: var(--spacing-xl);
}

.enrollment-cta .cta-button {
  display: inline-flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  min-width: 320px;
  padding: var(--spacing-md) var(--spacing-lg);
}

/* カリキュラム詳細セクション */
.curriculum-detail {
  padding-block: var(--section-space-y);
  background-color: var(--color-bg);
}

.curriculum-detail .container {
  padding: 0 var(--container-padding);
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.curriculum-detail .section-title {
  text-align: center;
  margin-bottom: var(--spacing-sm);
}

.curriculum-detail .section-lead {
  text-align: center;
  font-size: var(--font-size-base);
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}

/* 講義スケジュール */
.curriculum-schedule {
  margin-bottom: var(--spacing-md);
}

.curriculum-schedule__table {
  border: 1px solid var(--color-border);
}

.curriculum-schedule__table th:first-child {
  width: 140px;
}

.curriculum-schedule__table th:nth-child(2) {
  width: 220px;
}

.curriculum-schedule__table td:first-child {
  line-height: 1.4;
}

.curriculum-schedule__table td {
  font-size: 15px;
  line-height: 1.5;
}

/* カリキュラム情報セクション */
.curriculum-info {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--color-border);
}

.curriculum-info__section {
  background-color: #FFFFFF;
  padding: 12px 14px;
  border-bottom: 1px solid var(--color-border);
}

.curriculum-info__section--bp {
  background: #FFFFFF;
}

.curriculum-info__section:last-child {
  border-bottom: none;
}

.curriculum-info__title {
  font-size: 18px;
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: 6px;
  line-height: var(--line-height-heading);
  border-bottom: none;
  padding-bottom: 0;
}

.curriculum-info__text {
  padding-left: 2em;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.5;
  margin-bottom: 4px;
}

.curriculum-info__text:last-child {
  margin-bottom: 0;
}

.curriculum-info__text--highlight {
  font-size: 24px;
  font-weight: bold;
  color: var(--color-secondary);
  margin-bottom: 2px;
}

.curriculum-info__note {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.5;
  margin-top: 2px;
}

/* BP認定ドキュメントリンク */
.curriculum-info__documents {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.curriculum-info__doc-link {
  display: inline-block;
  padding: 3px 10px;
  font-size: 13px;
  font-weight: bold;
  color: var(--color-secondary);
  text-decoration: none;
  border: 1px solid var(--color-secondary);
  border-radius: 999px;
}

.curriculum-info__doc-link:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}