/* コンポーネントスタイル */

/* CTAボタン */
.cta-button {
  display: inline-block;
  padding: 16px 48px;
  font-size: 18px;
  font-weight: bold;
  text-align: center;
  text-decoration: none;
  color: #FFFFFF;
  background-color: var(--color-primary);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-base);
}

.cta-button:hover {
  color: #FFFFFF;
  background-color: #5A3A9A;
}

.cta-button:active {
  color: #FFFFFF;
}

.cta-button:focus {
  color: #FFFFFF;
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.cta-button--primary {
  background-color: var(--color-primary);
}

.cta-button--primary:hover {
  background-color: #5A3A9A;
}

.cta-button--secondary {
  background-color: var(--color-secondary);
}

.cta-button--secondary:hover {
  background-color: #004080;
}

.cta-button__text {
  display: block;
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 4px;
}

.cta-button__sub {
  display: block;
  font-size: 14px;
  font-weight: normal;
  opacity: 0.9;
}

/* パララックスセクション */
.parallax-section {
  position: relative;
  min-height: 100vh;
  background: transparent;
}

.parallax-bg {
  display: none;
}

.parallax-content {
  position: relative;
  z-index: 1;
  background-color: rgba(0, 0, 0, 0.3);
  min-height: 100vh;
}

/* ヘッダー */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-index-header);
  transition: all var(--transition-base);
  background-color: transparent;
}

.header.is-scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(10px);
}

.header-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: var(--spacing-sm) var(--container-padding);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-logo {
  z-index: calc(var(--z-index-header) + 2);
}

.header-logo__link {
  display: block;
  text-decoration: none;
}

.header-logo img {
  height: auto;
  width: auto;
  max-width: 420px;
  transition: all var(--transition-base);
}

.header.is-scrolled .header-logo img {
  height: auto;
  filter: brightness(0) saturate(100%) invert(20%) sepia(10%) saturate(500%) hue-rotate(180deg);
}

/* ハンバーガーメニュー */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: calc(var(--z-index-header) + 2);
  transition: all var(--transition-base);
}

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

.hamburger__line {
  width: 100%;
  height: 3px;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
  transform-origin: center;
}

.header.is-scrolled .hamburger__line {
  background-color: var(--color-primary);
}

.hamburger.is-active .hamburger__line:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

.hamburger.is-active .hamburger__line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.is-active .hamburger__line:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* ナビゲーション */
.nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--spacing-xs);
}

.nav-item {
  margin: 0;
}

.nav-link {
  display: block;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-text-white);
  text-decoration: none;
  border-radius: 8px;
  transition: all var(--transition-base);
  position: relative;
}

.header.is-scrolled .nav-link {
  color: var(--color-text);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 2px;
  background-color: var(--color-secondary);
  transition: transform var(--transition-base);
  border-radius: 2px;
}

.nav-link:hover {
  color: var(--color-secondary);
  background-color: rgba(0, 51, 102, 0.05);
}

.nav-link:hover::after {
  transform: translateX(-50%) scaleX(1);
}

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

.nav-link.is-active {
  color: var(--color-secondary);
  font-weight: bold;
}

.nav-link.is-active::after {
  transform: translateX(-50%) scaleX(1);
}

/* ナビゲーションオーバーレイ */
.nav-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: var(--z-index-overlay);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.nav-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* 情報リスト（講座概要カード） */
.info-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.info-list__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-lg);
  background-color: #FFFFFF;
  border-radius: 8px;
  transition: all var(--transition-base);
}

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

.info-list__icon {
  width: 80px;
  height: 80px;
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.info-list__icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.info-list__content {
  width: 100%;
}

.info-list__title {
  font-size: var(--font-size-lg);
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.info-list__points {
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: left;
}

.info-list__points li {
  position: relative;
  padding-left: var(--spacing-md);
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: 1.6;
}

.info-list__points li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-secondary);
  font-weight: bold;
}

/* 連携大学セクション用のinfo-listスタイル */
.info-list__label {
  font-size: var(--font-size-base);
  font-weight: bold;
  color: var(--color-secondary);
  line-height: 1.6;
  min-width: 180px;
  padding: var(--spacing-sm);
  background-color: rgba(0, 51, 102, 0.05);
  border-radius: 4px;
  text-align: center;
}

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

/* 連携大学セクション用のレイアウト調整 */
.partner-universities-list .info-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.partner-universities-list .info-list__item {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: #FFFFFF;
  border-radius: 8px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
  transition: all var(--transition-base);
  text-align: left;
}

.partner-universities-list .info-list__item:hover {
  transform: translateY(-2px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.partner-universities-list .info-list__content {
  flex: 1;
}

.partner-universities-list .info-list__content p {
  margin: 0;
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: var(--line-height-base);
}