/* Header and Navigation Styles */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  z-index: var(--z-index-fixed);
  transition: all var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
  background-color: rgba(255, 255, 255, 0.98);
  /* backdrop-filter: blur(10px); */
}

.header-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.logo:hover {
  opacity: 0.8;
  color: var(--color-primary);
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-weight: 700;
  font-size: var(--font-size-lg);
  background-image: url("../images/logo.png");
  background-size: cover;
}

.logo-text {
  height: 26px;
	margin-bottom:2px;
  width: auto;
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

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

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--color-text);
  font-weight: 500;
  font-size: var(--font-size-base);
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
}

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

.nav-link:hover,
.nav-link.active {
  color: var(--color-secondary);
}

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

/* CTA Buttons in Header */
.nav-cta {
  display: flex;
  gap: var(--spacing-sm);
  margin-left: var(--spacing-md);
}

.nav-cta .btn {
  padding: 0.5rem 1.25rem;
  font-size: var(--font-size-sm);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  transition: all var(--transition-base);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Footer Styles */
.footer {
  background-color: var(--color-white);
  color: var(--color-text);
  padding: 0 0 var(--spacing-lg);
}

.footer-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-xxl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

/* 3カラム構成: ブランド列を広め、リンク列2つを均等に */
.footer-content--3col {
  grid-template-columns: 2fr 1fr 1fr;
}

@media (max-width: 768px) {
  .footer-content--3col {
    grid-template-columns: 1fr;
  }
}

.footer-section h4 {
  color: var(--color-text);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
  font-weight: 600;
}

.footer-section p {
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-sm);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--color-text-light);
  text-decoration: none;
  transition: color var(--transition-fast);
  display: inline-block;
}

.footer-links a:hover {
  color: var(--color-secondary);
}

.footer-corp-logo {
  display: inline-block;
  text-decoration: none;
}

.footer-corp-logo__img {
  height: 48px;
  width: auto;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.footer-policy-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
}

.footer-policy-links li {
  display: flex;
  align-items: center;
  padding-right: 0.75rem;
  margin-right: 0.75rem;
  border-right: 1px solid var(--color-border);
}

.footer-policy-links li:last-child {
  border-right: none;
  padding-right: 0;
  margin-right: 0;
}

.footer-policy-links a {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-policy-links a:hover {
  color: var(--color-secondary);
}

.footer-copyright {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  text-decoration: none;
  transition: all var(--transition-base);
}

.social-link:hover {
  background-color: var(--color-secondary);
  transform: translateY(-2px);
  color: var(--color-white);
}

/* Responsive Styles for Navigation */
@media (max-width: 1024px) {
  .header {
    height: 60px;
  }

  .menu-toggle {
    display: flex;
    z-index: 1;
  }

  .nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
    box-shadow: var(--shadow-lg);
    z-index: 299;
  }

  .nav.active {
    max-height: calc(100vh - 60px);
    overflow-y: auto;
  }

  .nav-menu {
    flex-direction: column;
    gap: 0;
    padding: var(--spacing-md) 0;
  }

  .nav-link {
    padding: var(--spacing-md) var(--container-padding);
    border-bottom: 1px solid var(--color-border);
  }

  .nav-link::after {
    display: none;
  }

  .nav-cta {
    flex-direction: column;
    margin: 0;
    padding: var(--spacing-md) var(--container-padding);
    border-top: 1px solid var(--color-border);
  }

  .nav-cta .btn {
    width: 100%;
    padding: 0.75rem 1.25rem;
    font-size: var(--font-size-base);
  }
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ---------------------------------------------------------------
   ドロップダウンナビ
--------------------------------------------------------------- */
.nav-item--dropdown {
  position: relative;
}

.nav-link--dropdown {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-dropdown-chevron {
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  transition: transform var(--transition-fast);
}

.nav-item--dropdown:hover .nav-dropdown-chevron,
.nav-item--dropdown .nav-link--dropdown[aria-expanded="true"] .nav-dropdown-chevron {
  transform: rotate(180deg);
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 160px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  list-style: none;
  /* 隙間をpaddingに変換してホバーの当たり判定を継続させる */
  padding: 0.5rem 0 0.375rem;
  margin: 0;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity var(--transition-fast),
    transform var(--transition-fast);
  transform: translateX(-50%) translateY(-4px);
  z-index: var(--z-index-dropdown);
}

.nav-item--dropdown:hover .nav-dropdown,
.nav-item--dropdown:focus-within .nav-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown__link {
  display: block;
  padding: 0.6rem 1.25rem;
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background var(--transition-fast),
    color var(--transition-fast);
}

.nav-dropdown__link:hover {
  background: var(--color-info);
  color: var(--color-secondary);
}

/* モバイル: ドロップダウンをインラインに展開 */
@media (max-width: 1024px) {
  .nav-link--dropdown {
    width: 100%;
    justify-content: space-between;
    padding: var(--spacing-md) var(--container-padding);
    border-bottom: 1px solid var(--color-border);
    pointer-events: none; /* サブメニューは常時展開のためトグル不要 */
    cursor: default;
  }

  .nav-dropdown-chevron {
    display: none; /* 常時展開のためシェブロン非表示 */
  }

  .nav-dropdown {
    position: static;
    transform: none;
    min-width: 100%;
    border: none;
    border-radius: 0;
    box-shadow: none;
    background: var(--color-bg);
    opacity: 1;
    pointer-events: auto;
    display: block; /* 常時表示（アコーディオン無効） */
  }

  .nav-dropdown__link {
    padding-left: calc(var(--container-padding) + 1rem);
    border-bottom: 1px solid var(--color-border);
  }

  /* デスクトップのホバー transform を打ち消す */
  .nav-item--dropdown:hover .nav-dropdown,
  .nav-item--dropdown:focus-within .nav-dropdown {
    transform: none;
    opacity: 1;
  }
}

/* Main Content Offset for Fixed Header */
.main-content {
  padding-top: var(--header-height);
}

@media (max-width: 1024px) {
  .main-content {
    padding-top: 60px;
  }
}