/* ============================================================
   admin.css - 관리자 페이지 공통 스타일
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;600;700&display=swap');

:root {
  --admin-primary: #0F2B5B;
  --admin-secondary: #2563EB;
  --admin-accent: #F59E0B;
  --admin-success: #10B981;
  --admin-danger: #EF4444;
  --admin-warning: #F59E0B;
  --admin-sidebar-width: 250px;
  --admin-header-height: 60px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Noto Sans KR', sans-serif;
  background: #F3F4F6;
  color: #1F2937;
  min-height: 100vh;
}

/* ── 레이아웃 ── */
.admin-layout {
  display: flex;
  min-height: 100vh;
}

/* ── 사이드바 ── */
.admin-sidebar {
  width: var(--admin-sidebar-width);
  background: var(--admin-primary);
  color: #fff;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  overflow-y: auto;
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: transform .3s ease;
}

.admin-sidebar-header {
  padding: 1.25rem 1.25rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.admin-sidebar-logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  text-decoration: none;
  color: #fff;
}

.admin-sidebar-logo img {
  height: 32px;
  object-fit: contain;
}

.admin-sidebar-logo span {
  font-size: 1rem;
  font-weight: 700;
}

.admin-menu {
  flex: 1;
  padding: 1rem 0;
  list-style: none;
}

.admin-menu-section {
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .1em;
  color: rgba(255,255,255,0.4);
  padding: 1rem 1.25rem .4rem;
  text-transform: uppercase;
}

.admin-menu a {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .65rem 1.25rem;
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  font-size: .88rem;
  transition: background .2s, color .2s;
  border-left: 3px solid transparent;
}

.admin-menu a:hover,
.admin-menu a.active {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border-left-color: var(--admin-accent);
}

.admin-menu a i { width: 18px; text-align: center; font-size: .9rem; }

.admin-sidebar-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.admin-sidebar-footer a {
  display: flex;
  align-items: center;
  gap: .5rem;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: .85rem;
  padding: .5rem 0;
  transition: color .2s;
}

.admin-sidebar-footer a:hover { color: #fff; }

/* ── 메인 콘텐츠 ── */
.admin-main {
  margin-left: var(--admin-sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── 헤더 ── */
.admin-header {
  height: var(--admin-header-height);
  background: #fff;
  border-bottom: 1px solid #E5E7EB;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  position: sticky;
  top: 0;
  z-index: 50;
}

.admin-header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.admin-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: #374151;
  padding: .5rem;
}

.admin-page-title {
  font-size: 1rem;
  font-weight: 600;
  color: #111827;
}

.admin-header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.admin-user-info {
  font-size: .85rem;
  color: #6B7280;
}

.admin-user-info strong { color: #111827; }

.btn-logout {
  background: none;
  border: 1px solid #E5E7EB;
  border-radius: 6px;
  padding: .4rem .85rem;
  font-size: .8rem;
  cursor: pointer;
  color: #6B7280;
  transition: all .2s;
  font-family: inherit;
}

.btn-logout:hover {
  background: #FEF2F2;
  border-color: #FCA5A5;
  color: var(--admin-danger);
}

/* ── 콘텐츠 영역 ── */
.admin-content {
  flex: 1;
  padding: 1.5rem;
  overflow-x: hidden;
}

/* ── 페이지 헤더 ── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.page-header h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: #111827;
}

.page-header p {
  font-size: .85rem;
  color: #6B7280;
  margin-top: .2rem;
}

/* ── 카드 ── */
.admin-card {
  background: #fff;
  border-radius: 10px;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(0,0,0,.08);
  margin-bottom: 1.25rem;
}

.admin-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #F3F4F6;
  flex-wrap: wrap;
  gap: .75rem;
}

.admin-card-title {
  font-size: 1rem;
  font-weight: 600;
  color: #111827;
  display: flex;
  align-items: center;
  gap: .5rem;
}

.admin-card-title i { color: var(--admin-secondary); }

/* ── 탭 ── */
.admin-tabs {
  display: flex;
  gap: .5rem;
  border-bottom: 2px solid #E5E7EB;
  margin-bottom: 1.5rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.admin-tab {
  padding: .65rem 1.25rem;
  font-size: .88rem;
  font-weight: 500;
  color: #6B7280;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  white-space: nowrap;
  transition: all .2s;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  font-family: inherit;
}

.admin-tab:hover { color: var(--admin-secondary); }
.admin-tab.active { color: var(--admin-secondary); border-bottom-color: var(--admin-secondary); }

.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* ── 폼 요소 ── */
.form-group {
  margin-bottom: 1.1rem;
}

.form-label {
  display: block;
  font-size: .85rem;
  font-weight: 500;
  color: #374151;
  margin-bottom: .4rem;
}

.form-label .required { color: var(--admin-danger); margin-left: .2rem; }

.form-control {
  width: 100%;
  padding: .6rem .9rem;
  border: 1px solid #D1D5DB;
  border-radius: 7px;
  font-size: .9rem;
  font-family: inherit;
  color: #1F2937;
  background: #fff;
  transition: border-color .2s, box-shadow .2s;
  outline: none;
}

.form-control:focus {
  border-color: var(--admin-secondary);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

textarea.form-control { resize: vertical; min-height: 90px; }

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.form-hint {
  font-size: .78rem;
  color: #9CA3AF;
  margin-top: .3rem;
}

/* ── 버튼 ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .6rem 1.2rem;
  border-radius: 7px;
  font-size: .88rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  font-family: inherit;
  transition: all .2s;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary { background: var(--admin-secondary); color: #fff; border-color: var(--admin-secondary); }
.btn-primary:hover { background: #1D4ED8; border-color: #1D4ED8; }

.btn-secondary { background: #fff; color: #374151; border-color: #D1D5DB; }
.btn-secondary:hover { background: #F9FAFB; border-color: #9CA3AF; }

.btn-success { background: var(--admin-success); color: #fff; border-color: var(--admin-success); }
.btn-success:hover { background: #059669; }

.btn-danger { background: var(--admin-danger); color: #fff; border-color: var(--admin-danger); }
.btn-danger:hover { background: #DC2626; }

.btn-warning { background: var(--admin-warning); color: #fff; border-color: var(--admin-warning); }
.btn-warning:hover { background: #D97706; }

.btn-sm { padding: .35rem .75rem; font-size: .8rem; }
.btn-lg { padding: .8rem 1.6rem; font-size: 1rem; }

.btn-group { display: flex; gap: .5rem; flex-wrap: wrap; }

/* ── 테이블 ── */
.admin-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .87rem;
}

.admin-table th {
  background: #F9FAFB;
  padding: .75rem 1rem;
  text-align: left;
  font-weight: 600;
  color: #374151;
  border-bottom: 2px solid #E5E7EB;
  white-space: nowrap;
}

.admin-table td {
  padding: .75rem 1rem;
  border-bottom: 1px solid #F3F4F6;
  color: #1F2937;
  vertical-align: middle;
}

.admin-table tr:hover td { background: #F9FAFB; }

/* ── 배지 ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: .2rem .65rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
}

.badge-success { background: #D1FAE5; color: #065F46; }
.badge-danger { background: #FEE2E2; color: #991B1B; }
.badge-warning { background: #FEF3C7; color: #92400E; }
.badge-info { background: #DBEAFE; color: #1E40AF; }
.badge-secondary { background: #F3F4F6; color: #374151; }

/* ── 토스트 ── */
.admin-toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: #1F2937;
  color: #fff;
  padding: .85rem 1.25rem;
  border-radius: 10px;
  display: flex;
  align-items: center;
  gap: .65rem;
  font-size: .9rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.25);
  z-index: 9999;
  opacity: 0;
  transform: translateY(10px);
  transition: all .3s ease;
  max-width: 340px;
}

.admin-toast.show { opacity: 1; transform: translateY(0); }
.admin-toast-success { background: #065F46; }
.admin-toast-error { background: #991B1B; }
.admin-toast-warning { background: #92400E; }

/* ── 모달 ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  background: #fff;
  border-radius: 12px;
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid #E5E7EB;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 1;
}

.modal-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #111827;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: #9CA3AF;
  padding: .25rem;
  line-height: 1;
  transition: color .2s;
}

.modal-close:hover { color: #374151; }

.modal-body { padding: 1.5rem; }

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid #E5E7EB;
  display: flex;
  justify-content: flex-end;
  gap: .75rem;
  flex-wrap: wrap;
}

/* ── 통계 카드 ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: #fff;
  border-radius: 10px;
  padding: 1.25rem;
  box-shadow: 0 1px 3px rgba(0,0,0,.08);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.stat-icon.blue { background: #DBEAFE; color: var(--admin-secondary); }
.stat-icon.green { background: #D1FAE5; color: var(--admin-success); }
.stat-icon.yellow { background: #FEF3C7; color: var(--admin-warning); }
.stat-icon.red { background: #FEE2E2; color: var(--admin-danger); }

.stat-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #111827;
  line-height: 1.2;
}

.stat-info p {
  font-size: .8rem;
  color: #6B7280;
}

/* ── 이미지 업로드 ── */
.image-upload-area {
  border: 2px dashed #D1D5DB;
  border-radius: 10px;
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: all .2s;
  background: #F9FAFB;
}

.image-upload-area:hover,
.image-upload-area.drag-over {
  border-color: var(--admin-secondary);
  background: #EFF6FF;
}

.image-upload-area i {
  font-size: 2rem;
  color: #9CA3AF;
  margin-bottom: .75rem;
}

.image-upload-area p {
  font-size: .9rem;
  color: #6B7280;
}

.image-upload-area input[type="file"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.image-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: .75rem;
  margin-top: 1rem;
}

.image-preview-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #E5E7EB;
}

.image-preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-preview-item .remove-img {
  position: absolute;
  top: 4px;
  right: 4px;
  background: rgba(0,0,0,0.6);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 22px;
  height: 22px;
  font-size: .7rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── 검색 ── */
.search-bar {
  display: flex;
  gap: .75rem;
  align-items: center;
  flex-wrap: wrap;
}

.search-input-wrap {
  position: relative;
  flex: 1;
  min-width: 200px;
}

.search-input-wrap i {
  position: absolute;
  left: .9rem;
  top: 50%;
  transform: translateY(-50%);
  color: #9CA3AF;
  font-size: .9rem;
  pointer-events: none;
}

.search-input-wrap input {
  width: 100%;
  padding: .6rem .9rem .6rem 2.4rem;
  border: 1px solid #D1D5DB;
  border-radius: 7px;
  font-size: .9rem;
  font-family: inherit;
  outline: none;
  transition: border-color .2s;
}

.search-input-wrap input:focus {
  border-color: var(--admin-secondary);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

/* ── 빈 상태 ── */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: #9CA3AF;
}

.empty-state i { font-size: 3rem; margin-bottom: 1rem; display: block; }
.empty-state h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: .5rem; color: #6B7280; }
.empty-state p { font-size: .9rem; }

/* ── 반응형 ── */
@media (max-width: 1024px) {
  .admin-sidebar {
    transform: translateX(-100%);
  }

  .admin-sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 20px rgba(0,0,0,0.25);
  }

  .admin-main {
    margin-left: 0;
  }

  .admin-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 99;
    display: none;
  }

  .sidebar-overlay.active { display: block; }
}

@media (max-width: 640px) {
  .admin-content { padding: 1rem; }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .admin-toast {
    bottom: 1rem;
    right: 1rem;
    left: 1rem;
    max-width: none;
  }

  .modal-box {
    max-height: 95vh;
  }

  .modal-body { padding: 1rem; }
  .modal-header, .modal-footer { padding: 1rem; }
}