/* ==========================================================================
   Homestay Korea — Header & Navigation
   고정 헤더, 데스크톱 드롭다운, 모바일 사이드 패널
   ========================================================================== */

/* ---- 포털 유틸리티 바 (헤더 위 슬림 바) ---- */
.utility-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 32px;
  background: #1E293B;
  z-index: calc(var(--z-sticky) + 1);
  display: flex;
  align-items: center;
}

.utility-bar__inner {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.utility-bar__btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 3px;
  white-space: nowrap;
  transition: opacity 0.15s, transform 0.15s;
  text-decoration: none;
}

.utility-bar__btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.utility-bar__btn--buddy {
  color: #fff;
  background: #16A34A;
}

.utility-bar__btn--agency {
  color: #fff;
  background: #2563EB;
}

.utility-bar__btn--host {
  color: #fff;
  background: #EA580C;
}

/* 유틸리티 바 존재 시 헤더/콘텐츠 위치 조정 */
.has-utility-bar .header {
  top: 32px;
}

.has-utility-bar .page__main {
  padding-top: calc(var(--header-height) + 32px);
}

.has-utility-bar .mobile-nav {
  top: 32px;
  height: calc(100vh - 32px);
}

/* 신뢰 배너 존재 시 — 헤더/콘텐츠를 32px 아래로 (포털 버튼은 배너 안에 통합) */
.has-trust-banner .header {
  top: 32px;
}

.has-trust-banner .page__main {
  padding-top: calc(var(--header-height) + 32px);
}

.has-trust-banner .mobile-nav {
  top: 32px;
  height: calc(100vh - 32px);
}

@media (max-width: 1024px) {
  .utility-bar__inner {
    justify-content: center;
  }

  .utility-bar__btn {
    font-size: 10px;
    padding: 2px 8px;
  }
}

/* ---- 메인 헤더 — 글래스모피즘 ---- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  z-index: var(--z-sticky);
  transition: height var(--transition-base),
              box-shadow var(--transition-base),
              background-color var(--transition-base);
}

.header.is-scrolled {
  height: var(--header-height-shrink);
  background: rgba(255, 255, 255, 0.97);
  box-shadow: var(--shadow-sticky);
}

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

/* ---- 로고 ---- */
.header__logo {
  flex-shrink: 0;
}

.header__logo img {
  height: 41px;
  width: auto;
  transition: height var(--transition-base);
}

.header.is-scrolled .header__logo img {
  height: 34px;
}

/* ---- 데스크톱 네비게이션 ---- */
.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
}

.nav__item {
  position: relative;
}

.nav__link {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
  padding: var(--spacing-2) var(--spacing-3);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  text-transform: none;
  letter-spacing: normal;
  white-space: nowrap;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast),
              background-color var(--transition-fast);
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--color-primary);
}

/* 드롭다운 화살표 */
.nav__arrow {
  width: 12px;
  height: 12px;
  fill: currentColor;
  transition: transform var(--transition-fast);
}

.nav__item:hover .nav__arrow,
.nav__item.is-open .nav__arrow {
  transform: rotate(180deg);
}

/* ---- 드롭다운 메뉴 ---- */
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  padding: var(--spacing-2) 0;
  background: var(--color-bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dropdown);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition-fast),
              visibility var(--transition-fast),
              transform var(--transition-fast);
  z-index: var(--z-dropdown);
}

.nav__item:hover .dropdown,
.nav__item.is-open .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-2) var(--spacing-5);
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast),
              background-color var(--transition-fast);
}

.dropdown__link:hover {
  color: var(--color-primary);
  background: var(--color-bg-alt);
}

/* 서브 드롭다운 (테마 카테고리) */
.dropdown__item--has-sub {
  position: relative;
}

.dropdown__sub {
  position: absolute;
  left: 100%;
  top: 0;
  min-width: 200px;
  padding: var(--spacing-2) 0;
  background: var(--color-bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dropdown);
  opacity: 0;
  visibility: hidden;
  transform: translateX(4px);
  transition: opacity var(--transition-fast),
              visibility var(--transition-fast),
              transform var(--transition-fast);
}

.dropdown__item--has-sub:hover .dropdown__sub {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

/* 드롭다운 구분선 */
.dropdown__divider {
  height: 1px;
  margin: var(--spacing-2) 0;
  background: var(--color-border-light);
}

/* ---- 헤더 우측 액션 (Sign In / Sign Up) ---- */
.header__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  flex-shrink: 0;
}

.header__signin {
  padding: var(--spacing-2) var(--spacing-3);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-secondary);
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.header__signin:hover {
  color: var(--color-primary);
}

.header__signup {
  padding: var(--spacing-2) var(--spacing-3);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-white);
  background: var(--color-primary);
  border-radius: var(--radius-md);
  box-shadow: 0 1px 2px var(--color-primary-shadow);
  white-space: nowrap;
  transition: background-color var(--transition-fast),
              transform var(--transition-fast),
              box-shadow var(--transition-fast);
}

.header__signup:hover {
  background: var(--color-primary-hover);
  color: var(--color-text-white);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px var(--color-primary-glow);
}

.header__signup:active {
  transform: translateY(0);
}

/* ---- 계정 드롭다운 (로그인 상태) ---- */
.header__account {
  position: relative;
}

.header__account-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-circle);
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast),
              border-color var(--transition-fast);
}

.header__account-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.header__account-icon {
  width: 20px;
  height: 20px;
}

.header__account-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 220px;
  padding: var(--spacing-2) 0;
  background: var(--color-bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dropdown);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition-fast),
              visibility var(--transition-fast),
              transform var(--transition-fast);
  z-index: var(--z-dropdown);
}

.header__account.is-open .header__account-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header__account-info {
  padding: var(--spacing-3) var(--spacing-5);
}

.header__account-name {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
}

.dropdown__link--signout {
  color: var(--color-danger, #dc3545);
}

.dropdown__link--signout:hover {
  color: var(--color-danger, #dc3545);
  background: rgba(220, 53, 69, 0.06);
}

.dropdown__link--active,
.dropdown__link[aria-current="page"] {
  color: var(--color-accent, #E8744F);
  font-weight: 600;
  background: rgba(232, 116, 79, 0.06);
}

.mobile-nav__sublink--active,
.mobile-nav__sublink[aria-current="page"],
.mobile-nav__sublink--active:hover,
.mobile-nav__sublink[aria-current="page"]:hover {
  color: var(--color-accent, #E8744F);
  font-weight: 600;
}

/* ---- 햄버거 버튼 (모바일) ---- */
.header__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  z-index: calc(var(--z-modal) + 1);
}

.hamburger__line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--transition-base),
              opacity var(--transition-base);
}

.hamburger__line + .hamburger__line {
  margin-top: 6px;
}

/* 열린 상태 — X 형태로 변환 */
.header__hamburger.is-active .hamburger__line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

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

.header__hamburger.is-active .hamburger__line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ---- 모바일 사이드 패널 ---- */
.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  width: 300px;
  max-width: 85vw;
  height: 100vh;
  background: var(--color-bg-white);
  z-index: var(--z-modal);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

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

.mobile-nav__backdrop {
  position: fixed;
  inset: 0;
  background: var(--color-bg-overlay);
  z-index: calc(var(--z-modal) - 1);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.mobile-nav__backdrop.is-active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-4) var(--spacing-5);
  border-bottom: 1px solid var(--color-border-light);
}

.mobile-nav__close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-circle);
  transition: background-color var(--transition-fast);
}

.mobile-nav__close:hover {
  background: var(--color-bg-light);
}

/* 모바일 메뉴 항목 */
.mobile-nav__list {
  padding: var(--spacing-3) 0;
}

.mobile-nav__item {
  border-bottom: 1px solid var(--color-border-light);
}

.mobile-nav__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-4) var(--spacing-5);
  font-family: var(--font-heading);
  font-size: var(--text-md);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  text-transform: uppercase;
}

.mobile-nav__link:hover {
  color: var(--color-primary);
}

.mobile-nav__toggle {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base);
}

.mobile-nav__item.is-open .mobile-nav__toggle {
  transform: rotate(180deg);
}

/* 모바일 서브메뉴 */
.mobile-nav__sub {
  max-height: 0;
  overflow: hidden;
  background: var(--color-bg-alt);
  transition: max-height var(--transition-base) ease-out;
}

.mobile-nav__item.is-open .mobile-nav__sub {
  max-height: 500px;
}

.mobile-nav__sublink {
  display: block;
  padding: var(--spacing-3) var(--spacing-5) var(--spacing-3) var(--spacing-8);
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}

.mobile-nav__sublink:hover {
  color: var(--color-primary);
}

/* 모바일 하단 버튼 */
.mobile-nav__actions {
  padding: var(--spacing-5);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
  border-top: 1px solid var(--color-border-light);
}

/* 모바일 계정 메뉴 (로그인 상태) */
.mobile-nav__account-name {
  display: block;
  padding: var(--spacing-2) 0;
  font-size: var(--text-md);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
}

.mobile-nav__account-divider {
  height: 1px;
  margin: var(--spacing-2) 0;
  background: var(--color-border-light);
}

.mobile-nav__account-link {
  display: block;
  padding: var(--spacing-2) 0;
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.mobile-nav__account-link:hover {
  color: var(--color-primary);
}

.mobile-nav__account-link--signout {
  color: var(--color-danger, #dc3545);
}

.mobile-nav__account-link--signout:hover {
  color: var(--color-danger, #dc3545);
}

/* ---- 반응형 ---- */
@media (max-width: 1024px) {
  .nav,
  .header__actions {
    display: none;
  }

  .header__hamburger {
    display: flex;
  }
}

@media (min-width: 1025px) {
  .mobile-nav,
  .mobile-nav__backdrop {
    display: none !important;
  }
}

/* ---- 포털별 네비게이션 색상 ---- */
[data-portal="buddy"] .nav__link.is-active,
[data-portal="buddy"] .nav__link:hover {
  color: #16A34A;
}

[data-portal="agency"] .nav__link.is-active,
[data-portal="agency"] .nav__link:hover {
  color: #2563EB;
}

[data-portal="host"] .nav__link.is-active,
[data-portal="host"] .nav__link:hover {
  color: #EA580C;
}

/* 포털 로그인 버튼 */
[data-portal="buddy"] .header__signup {
  background: #16A34A;
  box-shadow: 0 1px 2px rgba(22, 163, 74, 0.2);
}
[data-portal="buddy"] .header__signup:hover {
  background: #15803D;
  box-shadow: 0 4px 8px rgba(22, 163, 74, 0.25);
}

[data-portal="agency"] .header__signup {
  background: #2563EB;
  box-shadow: 0 1px 2px rgba(37, 99, 235, 0.2);
}
[data-portal="agency"] .header__signup:hover {
  background: #1D4ED8;
  box-shadow: 0 4px 8px rgba(37, 99, 235, 0.25);
}

[data-portal="host"] .header__signup {
  background: #EA580C;
  box-shadow: 0 1px 2px rgba(234, 88, 12, 0.2);
}
[data-portal="host"] .header__signup:hover {
  background: #C2410C;
  box-shadow: 0 4px 8px rgba(234, 88, 12, 0.25);
}

/* 포털 모바일 로그인 버튼 */
[data-portal="buddy"] .mobile-nav__actions .btn--primary {
  background: #16A34A;
  border-color: #16A34A;
}
[data-portal="agency"] .mobile-nav__actions .btn--primary {
  background: #2563EB;
  border-color: #2563EB;
}
[data-portal="host"] .mobile-nav__actions .btn--primary {
  background: #EA580C;
  border-color: #EA580C;
}

/* 알림 아이콘 */
.header__notification {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    color: var(--color-text);
    text-decoration: none;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.header__notification:hover {
    background-color: var(--color-bg-secondary, #f3f4f6);
}

.header__notification-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    font-size: 10px;
    font-weight: 700;
    color: #fff;
    background-color: #ef4444;
    border-radius: 8px;
}

/* 알림 드롭다운 래퍼 */
.header__notification-wrap {
    position: relative;
}

/* 알림 드롭다운 패널 */
.notification-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 360px;
    max-height: 480px;
    background: var(--color-bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-dropdown);
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity var(--transition-fast),
                visibility var(--transition-fast),
                transform var(--transition-fast);
    z-index: var(--z-dropdown);
    display: flex;
    flex-direction: column;
}

.header__notification-wrap.is-open .notification-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.notification-dropdown__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid #e5e7eb;
}

.notification-dropdown__title {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.notification-dropdown__mark-read {
    font-size: 12px;
    color: var(--color-primary, #2563eb);
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
}

.notification-dropdown__mark-read:hover {
    background: #eff6ff;
}

.notification-dropdown__list {
    overflow-y: auto;
    max-height: 360px;
    flex: 1;
}

.notification-dropdown__item {
    display: block;
    padding: 12px 16px;
    border-bottom: 1px solid #f3f4f6;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    transition: background-color 0.15s;
}

.notification-dropdown__item:hover {
    background-color: #f9fafb;
}

.notification-dropdown__item--unread {
    background-color: #eff6ff;
    border-left: 3px solid #2563eb;
}

.notification-dropdown__item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
}

.notification-dropdown__item-title {
    font-size: 13px;
    font-weight: 500;
    color: #111827;
    margin: 0;
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.notification-dropdown__item--unread .notification-dropdown__item-title {
    font-weight: 600;
}

.notification-dropdown__item-time {
    font-size: 11px;
    color: #9ca3af;
    white-space: nowrap;
    margin-left: 8px;
    flex-shrink: 0;
}

.notification-dropdown__item-message {
    font-size: 12px;
    color: #6b7280;
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.notification-dropdown__empty {
    text-align: center;
    padding: 32px 16px;
    color: #9ca3af;
    font-size: 13px;
}

.notification-dropdown__footer {
    display: block;
    text-align: center;
    padding: 10px 16px;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-primary, #2563eb);
    text-decoration: none;
    border-top: 1px solid #e5e7eb;
}

.notification-dropdown__footer:hover {
    background: #f9fafb;
}

/* 모바일 알림 드롭다운 */
@media (max-width: 768px) {
    .notification-dropdown {
        width: calc(100vw - 32px);
        right: -60px;
    }
}

/* ========== HomestayPRO Nav Link (Style A: Gradient Badge) ========== */
.nav__pro-link {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: var(--spacing-2) var(--spacing-3);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  white-space: nowrap;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.nav__pro-link:hover {
  color: var(--color-primary);
}
.nav__pro-link:hover .nav__pro-badge {
  box-shadow: 0 0 10px rgba(232, 150, 10, 0.4);
  transform: scale(1.05);
}
.nav__pro-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  border-radius: var(--radius-pill);
  line-height: 1;
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

/* Mobile HomestayPRO */
.mobile-nav__pro-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 0;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  text-decoration: none;
}
.mobile-nav__pro-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  border-radius: var(--radius-pill);
  line-height: 1;
}

/* ========== Portal Nav Pill Buttons ========== */
.nav__pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  color: var(--color-text-white);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}
.nav__pill:hover { opacity: 0.9; }
.nav__pill--host { background-color: var(--portal-host-text); }
.nav__pill--buddy { background-color: var(--portal-buddy-text); }
.nav__pill--agency { background-color: var(--portal-agency-text); }

/* Header bottom border for portal pages */
.header[data-portal="host"] { border-bottom: 2px solid var(--portal-host); }
.header[data-portal="buddy"] { border-bottom: 2px solid var(--portal-buddy); }
.header[data-portal="agency"] { border-bottom: 2px solid var(--portal-agency); }

/* Account icon border color by portal */
.header[data-portal="host"] .header__account-btn { border-color: var(--portal-host); }
.header[data-portal="buddy"] .header__account-btn { border-color: var(--portal-buddy); }
.header[data-portal="agency"] .header__account-btn { border-color: var(--portal-agency); }