/**
 * header.css — 사이트 헤더 스타일 (마켓플레이스 그린 테마)
 * 의존성: tokens.css, base.css 가 먼저 로드되어야 한다.
 * 사용처: includes/header.php (40개 페이지에서 include)
 */

/* ─────────────────────────────────────────────
   Top utility strip
   ───────────────────────────────────────────── */
.top-strip {
  background: var(--gray-50);
  color: var(--gray-600);
  font-family: var(--font-body);
  font-size: var(--fs-label-sm);
  letter-spacing: var(--ls-label);
  border-bottom: 1px solid var(--border);
}
.top-strip__inner {
  max-width: var(--container-inner);
  margin: 0 auto;
  padding: 0 var(--space-8);
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.top-strip__left, .top-strip__right {
  display: flex; align-items: center; gap: var(--space-3);
}
.top-strip__dot { color: var(--gray-300); }
.top-strip__live {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--gray-700); font-weight: 700;
}
.top-strip__live-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--primary);
  animation: rs-blink 1.2s steps(1, end) infinite;
}
.top-strip__link { color: var(--gray-600); text-decoration: none; }
.top-strip__link:hover { color: var(--primary); text-decoration: underline; }
@keyframes rs-blink { 50% { opacity: 0.3; } }

/* ─────────────────────────────────────────────
   Header — 전체 래퍼
   ───────────────────────────────────────────── */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0;
  z-index: var(--z-header);
  box-shadow: var(--shadow-header);
}
.container {
  max-width: var(--container-inner);
  margin: 0 auto;
  padding: 0 var(--space-8);
}

/* ─────────────────────────────────────────────
   Utility row (로그인/회원가입/고객센터)
   ───────────────────────────────────────────── */
.header-utility {
  border-bottom: 1px solid var(--gray-100);
  font-size: var(--fs-body-sm);
  color: var(--text-secondary);
}
.header-utility__inner {
  height: 32px;
  display: flex; align-items: center; justify-content: flex-end; gap: var(--space-4);
}
.header-utility__item {
  color: var(--text-secondary);
  text-decoration: none;
  font-family: var(--font-body);
  font-size: var(--fs-body-sm);
  background: none; border: none; padding: 0; cursor: pointer;
}
.header-utility__item:hover { color: var(--primary); }
.header-utility__badge-admin {
  display: inline-block; margin-left: 4px;
  background: var(--primary); color: #fff;
  font-size: 9px; font-weight: 800; padding: 1px 5px; border-radius: var(--radius-xs);
  letter-spacing: var(--ls-label);
}
.header-utility__logout-form { display: inline; }
.header-utility__logout-btn { font: inherit; color: inherit; }

/* ─────────────────────────────────────────────
   Header main row (logo + search + actions)
   ───────────────────────────────────────────── */
.header-main { padding: 14px 0; }
.header-main__inner {
  display: flex; align-items: center; gap: var(--space-8);
}
.header-main__left { display: flex; align-items: center; flex: 1; gap: var(--space-6); }
.header-main__right { display: flex; align-items: center; gap: var(--space-2); }

/* 로고 */
.header-logo__link { display: inline-flex; align-items: center; text-decoration: none; }
.header-logo__svg { height: 28px; width: auto; display: block; }
.header-logo__text {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.03em;
  line-height: 1;
}

/* ─────────────────────────────────────────────
   Search bar
   ───────────────────────────────────────────── */
.header-search {
  flex: 1;
  max-width: 540px;
  position: relative;
}
.header-search__form {
  display: flex; align-items: stretch;
  border: 1.5px solid var(--primary);
  border-radius: var(--radius-lg);
  height: 44px;
  background: #fff;
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}
.header-search__form:focus-within {
  box-shadow: 0 0 0 3px var(--green-light);
}
.header-search__cat {
  appearance: none;
  -webkit-appearance: none;
  border: none;
  background: var(--gray-50);
  padding: 0 28px 0 14px;
  border-right: 1px solid var(--border);
  font-family: var(--font-body);
  font-size: var(--fs-body-sm);
  font-weight: 600;
  color: var(--gray-700);
  outline: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 6' fill='none' stroke='%236B7280' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='1,1 5,5 9,1'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 10px 6px;
}
.header-search__cat:focus { outline: none; }
.header-search__input {
  flex: 1;
  border: none;
  outline: none;
  padding: 0 14px;
  font-family: var(--font-body);
  font-size: var(--fs-body-md);
  background: transparent;
  color: var(--gray-900);
}
.header-search__btn {
  border: none;
  background: var(--primary);
  color: #fff;
  height: 100%;
  width: 52px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: background var(--transition-base);
  flex-shrink: 0;
}
.header-search__btn:hover { background: var(--primary-dark); }
.header-search__btn svg {
  width: 18px; height: 18px;
  stroke: currentColor; stroke-width: 2; fill: none;
}

.header-search__dropdown {
  position: absolute; top: calc(100% + 4px); left: 0; right: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: none;
  z-index: var(--z-dropdown);
  box-shadow: var(--shadow-md);
}
.header-search__dropdown.is-open { display: block; }

/* ─────────────────────────────────────────────
   판매하기 버튼
   ───────────────────────────────────────────── */
.header-sell-btn {
  display: inline-flex; align-items: center; gap: 4px;
  height: 36px;
  padding: 0 var(--space-4);
  background: var(--primary);
  color: #fff;
  font-family: var(--font-body);
  font-size: var(--fs-body-sm);
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-full);
  white-space: nowrap;
  transition: background var(--transition-base);
  border: none; cursor: pointer;
}
.header-sell-btn:hover { background: var(--primary-dark); }
.header-sell-btn svg {
  width: 14px; height: 14px;
  stroke: currentColor; stroke-width: 2.5; fill: none;
  flex-shrink: 0;
}

/* ─────────────────────────────────────────────
   Right action icons
   ───────────────────────────────────────────── */
.header-actions { display: flex; align-items: center; gap: var(--space-1); }
.header-icon-btn {
  position: relative;
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; border: none; padding: 0;
  color: var(--gray-700); text-decoration: none; cursor: pointer;
  border-radius: var(--radius-lg);
  transition: background var(--transition-base), color var(--transition-base);
}
.header-icon-btn:hover { background: var(--gray-100); color: var(--primary); }
.header-icon-btn svg {
  width: 22px; height: 22px;
  stroke: currentColor; stroke-width: 1.6; fill: none;
}
.header-icon-btn__badge {
  position: absolute; top: 4px; right: 4px;
  min-width: 16px; height: 16px;
  padding: 0 4px;
  background: var(--primary); color: #fff;
  border-radius: 8px;
  font-size: 10px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
}
.header-icon-btn__badge[hidden] { display: none; }

/* ─────────────────────────────────────────────
   GNB row (카테고리 메뉴바)
   ───────────────────────────────────────────── */
.header-gnb {
  border-top: 1px solid var(--gray-100);
}
.header-gnb__inner {
  display: flex; align-items: center; gap: var(--space-1);
  height: var(--gnb-height);
  list-style: none; margin: 0; padding: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.header-gnb__inner::-webkit-scrollbar { display: none; }
.header-gnb__item {
  display: inline-flex; align-items: center; gap: 4px;
  height: var(--gnb-height);
  padding: 0 var(--space-3);
  font-family: var(--font-body);
  font-size: var(--fs-body-md);
  font-weight: 500;
  color: var(--gray-700);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  background: none; border-left: none; border-right: none; border-top: none;
  cursor: pointer;
  transition: color var(--transition-base), border-bottom-color var(--transition-base);
}
.header-gnb__item:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
}
.header-gnb__item--new { color: var(--blue); font-weight: 700; }
.header-gnb__item--best { font-weight: 700; }
.header-gnb__item--hotdeal { color: var(--orange); font-weight: 700; }
.header-gnb__item--auction { color: var(--primary); font-weight: 700; }
.gnb-all-categories svg {
  width: 10px; height: 6px;
  stroke: currentColor; stroke-width: 1.5; fill: none;
}

.gnb-item { position: relative; height: var(--gnb-height); display: inline-flex; align-items: center; }

/* ─────────────────────────────────────────────
   Mega panel (전체카테고리 dropdown)
   ───────────────────────────────────────────── */
.mega-panel {
  position: absolute; top: var(--gnb-height); left: 0;
  width: 960px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  box-shadow: var(--shadow-lg);
  display: none;
  z-index: var(--z-dropdown);
}
.gnb-item:hover .mega-panel,
.mega-panel.is-open { display: flex; }
.mega-panel--full { width: 1100px; }
.mega-panel__sidebar {
  width: 200px; background: var(--gray-50);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; padding: var(--space-2) 0;
  border-radius: 0 0 0 var(--radius-xl);
}
.mega-sidebar__item {
  padding: var(--space-3) var(--space-5);
  font-size: var(--fs-body-md);
  color: var(--gray-700); text-decoration: none;
  background: none; border: none; text-align: left; cursor: pointer;
  font-family: var(--font-body);
  border-left: 3px solid transparent;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.mega-sidebar__item:hover { background: var(--green-light); color: var(--primary); }
.mega-sidebar__item.is-active {
  background: #fff; color: var(--primary); font-weight: 600;
  border-left-color: var(--primary);
}
.mega-panel__content {
  flex: 1; padding: var(--space-6);
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4) var(--space-6);
  align-content: start;
}
.mega-content__panel { display: none; grid-column: 1 / -1;
  grid-template-columns: repeat(4, 1fr); gap: var(--space-3) var(--space-6);
}
.mega-content__panel.is-active { display: grid; }
.mega-content__panel--services {
  grid-template-columns: repeat(4, 1fr);
}
.mega-services-group__head {
  font-family: var(--font-display); font-size: var(--fs-title-sm);
  font-weight: 700; color: var(--gray-900);
  letter-spacing: var(--ls-label);
  margin-bottom: var(--space-3);
}
.mega-sub__item {
  display: block;
  padding: 5px 0;
  font-size: var(--fs-body-md);
  color: var(--gray-600); text-decoration: none;
}
.mega-sub__item:hover { color: var(--primary); }

/* ─────────────────────────────────────────────
   Mobile drawer + search overlay
   ───────────────────────────────────────────── */
.header-hamburger {
  width: 40px; height: 40px;
  background: none; border: none; padding: 8px; cursor: pointer;
  display: none; flex-direction: column; gap: 5px; align-items: center; justify-content: center;
  border-radius: var(--radius-lg);
}
.header-hamburger:hover { background: var(--gray-100); }
.header-hamburger__line {
  width: 22px; height: 2px; background: var(--gray-700); display: block;
}
.header-search-toggle {
  width: 40px; height: 40px;
  background: none; border: none; padding: 0; cursor: pointer;
  display: none; align-items: center; justify-content: center;
  color: var(--gray-700);
  border-radius: var(--radius-lg);
}
.header-search-toggle:hover { background: var(--gray-100); color: var(--primary); }
.header-search-toggle svg {
  width: 22px; height: 22px;
  stroke: currentColor; stroke-width: 1.6; fill: none;
}

.header-drawer-overlay {
  position: fixed; inset: 0;
  background: rgba(17, 24, 39, 0.5);
  z-index: var(--z-overlay);
  display: none;
}
.header-drawer-overlay.is-open { display: block; }
.header-drawer {
  position: fixed; top: 0; left: 0; bottom: 0;
  width: 320px; max-width: 86vw;
  background: #fff;
  z-index: var(--z-modal);
  transform: translateX(-100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
}
.header-drawer.is-open { transform: translateX(0); }
.header-drawer__header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border);
}
.header-drawer__title { font-weight: 700; font-size: var(--fs-title-md); }
.header-drawer__close {
  width: 32px; height: 32px;
  background: none; border: none; padding: 0; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
}
.header-drawer__close:hover { background: var(--gray-100); }
.header-drawer__close svg {
  width: 22px; height: 22px;
  stroke: var(--gray-700); stroke-width: 2; fill: none;
}

.drawer-user {
  padding: var(--space-5);
  background: var(--green-light);
  border-bottom: 1px solid var(--border);
}
.drawer-user__greeting { font-weight: 700; margin-bottom: var(--space-3); color: var(--gray-900); }
.drawer-user__links { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.drawer-user__link {
  font-size: var(--fs-body-sm); color: var(--gray-700); text-decoration: none;
  background: none; border: none; padding: 0; cursor: pointer;
  font-family: var(--font-body);
}
.drawer-user__link:hover { color: var(--primary); }

.drawer-nav { list-style: none; margin: 0; padding: 0; }
.drawer-category-toggle, .drawer-nav__item {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%;
  padding: var(--space-4) var(--space-5);
  border: none; background: none;
  font-family: var(--font-body); font-size: var(--fs-body-md);
  color: var(--gray-800); text-decoration: none; cursor: pointer;
  border-bottom: 1px solid var(--gray-100);
}
.drawer-category-toggle:hover, .drawer-nav__item:hover {
  background: var(--gray-50); color: var(--primary);
}
.drawer-category-toggle__arrow {
  width: 14px; height: 14px;
  stroke: currentColor; stroke-width: 2; fill: none;
  transition: transform var(--transition-base);
}
.drawer-category-toggle[aria-expanded="true"] .drawer-category-toggle__arrow {
  transform: rotate(90deg);
}
.drawer-category-sub { list-style: none; margin: 0; padding: 0; display: none; background: var(--gray-50); }
.drawer-category-toggle[aria-expanded="true"] + .drawer-category-sub { display: block; }
.drawer-category-sub__item {
  display: block;
  padding: var(--space-3) var(--space-7);
  font-size: var(--fs-body-sm);
  color: var(--gray-600); text-decoration: none;
}
.drawer-category-sub__item:hover { color: var(--primary); }

.search-overlay {
  position: fixed; inset: 0;
  background: #fff;
  z-index: var(--z-modal);
  display: none;
  flex-direction: column;
}
.search-overlay.is-open { display: flex; }
.search-overlay__bar {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border);
}
.search-overlay__close {
  width: 40px; height: 40px;
  background: none; border: none; padding: 0; cursor: pointer;
  border-radius: var(--radius-lg);
}
.search-overlay__close:hover { background: var(--gray-100); }
.search-overlay__close svg {
  width: 22px; height: 22px;
  stroke: var(--gray-700); stroke-width: 2; fill: none;
}
.search-overlay__input-wrap {
  flex: 1; display: flex;
  border: 1.5px solid var(--primary);
  border-radius: var(--radius-lg);
  height: 44px; overflow: hidden;
  transition: box-shadow var(--transition-base);
}
.search-overlay__input-wrap:focus-within {
  box-shadow: 0 0 0 3px var(--green-light);
}
.search-overlay__cat {
  appearance: none; -webkit-appearance: none;
  border: none; background: var(--gray-50);
  padding: 0 28px 0 12px;
  border-right: 1px solid var(--border);
  font-family: var(--font-body); font-weight: 600; font-size: var(--fs-body-sm);
  color: var(--gray-700);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 6' fill='none' stroke='%236B7280' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='1,1 5,5 9,1'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 10px 6px;
}
.search-overlay__input {
  flex: 1; border: none; outline: none;
  padding: 0 12px;
  font-family: var(--font-body); font-size: var(--fs-body-md);
  color: var(--gray-900);
}
.search-overlay__body { flex: 1; padding: var(--space-4); overflow-y: auto; }

/* ─────────────────────────────────────────────
   Accessibility helpers
   ───────────────────────────────────────────── */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.sr-only-focusable:focus {
  position: static; width: auto; height: auto;
  clip: auto; white-space: normal;
}

/* ─────────────────────────────────────────────
   Responsive — mobile
   ───────────────────────────────────────────── */
@media (max-width: 1023px) {
  .hidden-mobile { display: none !important; }
  .header-hamburger { display: flex; }
  .header-search-toggle { display: inline-flex; }
  .header-main__inner { gap: var(--space-3); }
  .container { padding: 0 var(--space-4); }
  .header-sell-btn { display: none; }
  .top-strip { display: none; }
}
@media (min-width: 1024px) {
  .hidden-desktop { display: none !important; }
}