/* ========================================
   UriNavi - Header Styles (Target Style)
   ======================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--urinavi-header-bg);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  z-index: 1000;
  transition: box-shadow var(--transition-base);
}

.header.scrolled {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 20px;
  font-weight: 700;
  font-family: var(--font-family-jp);
  color: var(--urinavi-text);
  transition: opacity var(--transition-fast);
}

.header__logo:hover {
  opacity: 0.8;
}

.header__logo img {
  height: 36px;
  width: auto;
}

/* Desktop Navigation */
.header__nav {
  display: none;
  align-items: center;
  gap: 32px;
}

.header__nav-item {
  position: relative;
  font-weight: 600;
  font-size: var(--urinavi-nav-font);
  font-family: var(--font-family-jp);
  color: var(--urinavi-text);
  transition: color var(--transition-fast);
  cursor: pointer;
  padding: var(--spacing-sm) 0;
}

.header__nav-item:hover {
  color: var(--urinavi-green);
}

.header__nav-item--active {
  color: var(--urinavi-green);
}

/* Dropdown Menu */
.header__dropdown {
  position: relative;
}

.header__dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 4px;
}

.header__dropdown-trigger::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 5px solid currentColor;
  transition: transform var(--transition-fast);
  margin-left: 2px;
}

.header__dropdown:hover .header__dropdown-trigger::after {
  transform: rotate(180deg);
}

.header__dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 240px;
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  padding: var(--spacing-sm) 0;
  margin-top: 5px;
}

.header__dropdown:hover .header__dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.header__dropdown-item {
  display: block;
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  transition: all var(--transition-fast);
}

.header__dropdown-item:hover {
  background-color: var(--urinavi-light-green);
  color: var(--urinavi-green);
}

.header__dropdown-item--active {
  color: var(--urinavi-green);
  background-color: var(--urinavi-light-green);
}

/* Login Button */
.header__login {
  display: none;
}

.header__login-btn {
  padding: 10px 24px;
  background-color: var(--urinavi-green);
  color: var(--color-white);
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: var(--urinavi-nav-font);
  font-family: var(--font-family-jp);
  transition: all var(--transition-base);
}

.header__login-btn:hover {
  background-color: var(--urinavi-green-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 200, 83, 0.3);
}

/* Mobile Menu Toggle */
.header__menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 30px;
  height: 30px;
  cursor: pointer;
  padding: 0;
  background: none;
  border: none;
}

.header__menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-gray-500);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.header__menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.header__menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation */
.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--urinavi-header-bg);
  padding: var(--spacing-lg);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
  z-index: 999;
}

.mobile-nav.active {
  transform: translateX(0);
}

.mobile-nav__item {
  display: block;
  padding: var(--spacing-md) 0;
  font-size: 16px;
  font-family: var(--font-family-jp);
  font-weight: 600;
  color: var(--urinavi-text);
  border-bottom: 1px solid var(--color-gray-200);
  transition: color var(--transition-fast);
}

.mobile-nav__item:hover {
  color: var(--urinavi-green);
}

/* Mobile Dropdown Trigger */
.mobile-nav__dropdown-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
  font-size: 16px;
  font-family: var(--font-family-jp);
  font-weight: 600;
  color: var(--urinavi-text);
  border-bottom: 1px solid var(--color-gray-200);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.mobile-nav__dropdown-trigger::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid currentColor;
  transition: transform var(--transition-fast);
}

.mobile-nav__dropdown-trigger.active::after {
  transform: rotate(180deg);
}

.mobile-nav__dropdown-trigger:hover {
  color: var(--urinavi-green);
}

.mobile-nav__dropdown {
  padding-left: var(--spacing-lg);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.mobile-nav__dropdown.active {
  max-height: 300px;
}

.mobile-nav__dropdown-item {
  display: block;
  padding: var(--spacing-sm) 0;
  font-size: 15px;
  font-family: var(--font-family-jp);
  color: var(--urinavi-muted);
  border-bottom: 1px solid var(--color-gray-100);
  transition: color var(--transition-fast);
}

.mobile-nav__dropdown-item:hover {
  color: var(--urinavi-green);
}

.mobile-nav__login {
  margin-top: var(--spacing-lg);
}

.mobile-nav__login .btn {
  width: 100%;
}

/* Desktop Styles */
@media (min-width: 1024px) {
  .header__nav {
    display: flex;
  }

  .header__login {
    display: block;
  }

  .header__menu-toggle {
    display: none;
  }

  .mobile-nav {
    display: none;
  }
}

/* Tablet Styles */
@media (min-width: 768px) and (max-width: 1023px) {
  .header__nav {
    display: flex;
    gap: var(--spacing-lg);
  }

  .header__nav-item {
    font-size: var(--font-size-sm);
  }

  .header__login {
    display: block;
  }

  .header__menu-toggle {
    display: none;
  }

  .mobile-nav {
    display: none;
  }
}

/* Mobile Styles */
@media (max-width: 767px) {
  :root {
    --header-height: var(--header-height-mobile);
  }

  .header__logo {
    font-size: var(--font-size-md);
  }

  .header__logo img {
    height: 32px;
  }
}

/* Body Padding for Fixed Header */
body {
  padding-top: var(--header-height);
}

/* Ensure header and hero have unified background */
body.header-hero-unified {
  background-color: #ffffff;
}