/* ========================================================
   CareerHi Operations Cockpit - Professional Dark/Slate Admin Theme
   Mobile-First Responsive & PWA Standalone Complete Specification
   ======================================================== */
:root {
  --admin-bg: #0B0F19;
  --admin-card-bg: #111827;
  --admin-card-hover: #1F2937;
  --admin-border: #1F2937;
  --admin-border-light: #374151;
  --admin-primary: #3B82F6;
  --admin-primary-hover: #2563EB;
  --admin-success: #10B981;
  --admin-warning: #F59E0B;
  --admin-danger: #EF4444;
  --admin-text-main: #F9FAFB;
  --admin-text-muted: #9CA3AF;
  --admin-sidebar-w: 260px;
  --admin-header-h: 60px;
  --admin-bottom-nav-h: 60px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Pretendard Variable", Pretendard, "Segoe UI", Roboto, sans-serif;
  background-color: var(--admin-bg);
  color: var(--admin-text-main);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ========================================================
   Sidebar (Desktop & Mobile Drawer)
   ======================================================== */
.admin-sidebar {
  width: var(--admin-sidebar-w);
  background-color: #0F172A;
  border-right: 1px solid var(--admin-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-brand {
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--admin-border);
}

.sidebar-brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex: 1;
  user-select: none;
  cursor: pointer;
}

.sidebar-brand-link:hover h1 {
  color: #60A5FA;
}

.sidebar-brand-badge {
  background: linear-gradient(135deg, #2563EB, #1D4ED8);
  color: white;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.sidebar-brand-text h1 {
  font-size: 17px;
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.2;
  transition: color 0.15s ease;
}

.sidebar-brand-text span {
  font-size: 11px;
  color: #60A5FA;
  display: block;
}

.mobile-close-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--admin-border);
  border-radius: 6px;
  color: #94A3B8;
  font-size: 16px;
  width: 34px;
  height: 34px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.sidebar-nav {
  padding: 16px 12px;
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-section-title {
  font-size: 11px;
  text-transform: uppercase;
  color: #64748B;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 12px 10px 6px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  min-height: 44px;
  border-radius: 8px;
  color: #94A3B8;
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 600;
  transition: all 0.15s ease;
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.05);
  color: #FFFFFF;
}

.nav-link.active {
  background-color: #1E293B;
  color: #60A5FA;
  font-weight: 700;
  border-left: 3px solid #3B82F6;
}

.nav-icon {
  font-size: 16px;
}

.nav-badge {
  margin-left: auto;
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 10px;
  background-color: #334155;
  color: #E2E8F0;
  font-weight: 700;
}

.nav-badge.danger {
  background-color: rgba(239, 68, 68, 0.2);
  color: #F87171;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--admin-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(3px);
  z-index: 95;
}

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

/* ========================================================
   Main Area & Header
   ======================================================== */
.admin-main {
  margin-left: var(--admin-sidebar-w);
  width: calc(100% - var(--admin-sidebar-w));
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left 0.25s ease, width 0.25s ease;
}

/* PWA Install Banner */
.admin-install-banner {
  display: none;
  background: linear-gradient(90deg, #1E40AF, #2563EB);
  color: white;
  padding: 10px 18px;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 600;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  width: 100%;
}

.banner-content {
  display: flex;
  align-items: center;
  gap: 8px;
}

.banner-icon {
  font-size: 16px;
}

.banner-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-banner-action {
  background-color: white;
  color: #1E40AF;
  border: none;
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.btn-banner-close {
  background: transparent;
  border: none;
  color: white;
  font-size: 16px;
  cursor: pointer;
  padding: 4px;
}

.btn-pwa-badge {
  display: none;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 6px;
  background-color: #2563EB;
  color: white;
  font-size: 12px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  min-height: 36px;
}

/* Header */
.admin-header {
  height: var(--admin-header-h);
  background-color: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--admin-border);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
  gap: 12px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  color: #FFFFFF;
  font-size: 20px;
  cursor: pointer;
}

.header-brand-link {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  user-select: none;
  cursor: pointer;
}

.header-brand-link:hover .header-title {
  color: #60A5FA;
}

.header-title {
  font-size: 15px;
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.2;
  transition: color 0.15s ease;
}

.header-sub {
  font-size: 11px;
  color: #60A5FA;
}

.header-status-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11.5px;
  font-weight: 600;
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--admin-border);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--admin-success);
}

.status-dot.pulse {
  box-shadow: 0 0 8px var(--admin-success);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* 브랜드 로고 링크 및 글자 선택 방지 */
.sidebar-brand-link,
.sidebar-brand-link *,
.header-brand-link,
.header-brand-link * {
  user-select: none !important;
  -webkit-user-select: none !important;
  -moz-user-select: none !important;
  -ms-user-select: none !important;
  -webkit-touch-callout: none !important;
}

.sidebar-brand-link,
.header-brand-link {
  cursor: pointer;
  text-decoration: none;
}

/* 기본 상태: 모든 설치 버튼/배너 철저히 숨김 */
.btn-mobile-install,
#btn-admin-install,
.btn-pwa-badge,
.admin-install-banner {
  display: none !important;
}

/* 일반 브라우저에서 PWA 미설치 시에만 브라우저 설치 준비 완료 시 노출 */
body.pwa-can-install:not(.is-pwa-installed) #btn-admin-install,
body.pwa-can-install:not(.is-pwa-installed) .btn-pwa-badge {
  display: inline-flex !important;
}

@media (max-width: 991px) {
  body.pwa-can-install:not(.is-pwa-installed) .btn-mobile-install {
    display: inline-flex !important;
  }
}

/* Standalone 앱 모드이거나 이미 설치된 환경에서는 영구 강제 숨김 */
html.is-pwa-installed .admin-install-banner,
html.is-pwa-installed #btn-admin-install,
html.is-pwa-installed .btn-pwa-badge,
html.is-pwa-installed .btn-mobile-install,
html.is-pwa-installed #btn-mobile-install,
body.is-pwa-installed .admin-install-banner,
body.is-pwa-installed #btn-admin-install,
body.is-pwa-installed .btn-pwa-badge,
body.is-pwa-installed .btn-mobile-install,
body.is-pwa-installed #btn-mobile-install {
  display: none !important;
}

.auth-badge {
  font-size: 10px;
  padding: 3px 8px;
  border-radius: 4px;
  background: #1E293B;
  border: 1px solid #334155;
  color: #38BDF8;
  font-weight: 800;
  letter-spacing: 0.5px;
}

/* ========================================================
   Content Layout
   ======================================================== */
.admin-content {
  padding: 24px;
  flex: 1;
}

.page-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 14px;
}

.page-title-row h2 {
  font-size: 20px;
  font-weight: 800;
  color: #FFFFFF;
}

.page-title-row p {
  font-size: 13px;
  color: var(--admin-text-muted);
  margin-top: 4px;
}

/* Stat Cards */
.stat-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.stat-card {
  background-color: var(--admin-card-bg);
  border: 1px solid var(--admin-border);
  border-radius: 12px;
  padding: 18px;
  display: flex;
  flex-direction: column;
}

.stat-card-label {
  font-size: 12px;
  color: var(--admin-text-muted);
  font-weight: 600;
  margin-bottom: 6px;
}

.stat-card-value {
  font-size: 24px;
  font-weight: 800;
  color: #FFFFFF;
}

.stat-card-sub {
  font-size: 11.5px;
  color: var(--admin-success);
  margin-top: 6px;
  font-weight: 600;
}

/* Panels */
.panel-box {
  background-color: var(--admin-card-bg);
  border: 1px solid var(--admin-border);
  border-radius: 12px;
  padding: 18px;
  margin-bottom: 20px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--admin-border);
  flex-wrap: wrap;
  gap: 8px;
}

.panel-title {
  font-size: 15px;
  font-weight: 700;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Responsive Table */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  min-width: 650px;
}

.admin-table th {
  background-color: #0F172A;
  color: #94A3B8;
  font-weight: 700;
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--admin-border);
  white-space: nowrap;
}

.admin-table td {
  padding: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: #E2E8F0;
}

.admin-table tr:hover td {
  background-color: rgba(255, 255, 255, 0.02);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 11.5px;
  font-weight: 700;
  white-space: nowrap;
}

.badge-verified { background-color: rgba(16, 185, 129, 0.15); color: #34D399; }
.badge-suspicious { background-color: rgba(245, 158, 11, 0.15); color: #FBBF24; }
.badge-rejected { background-color: rgba(239, 68, 68, 0.15); color: #F87171; }
.badge-pending { background-color: rgba(100, 116, 139, 0.2); color: #CBD5E1; }

/* Buttons & Touch Targets */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 16px;
  min-height: 44px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all 0.15s ease;
  text-decoration: none;
}

.btn-primary { background-color: var(--admin-primary); color: white; }
.btn-primary:hover { background-color: var(--admin-primary-hover); }

.btn-danger { background-color: rgba(239, 68, 68, 0.2); color: #F87171; border: 1px solid rgba(239, 68, 68, 0.3); }
.btn-danger:hover { background-color: var(--admin-danger); color: white; }

.btn-success { background-color: rgba(16, 185, 129, 0.2); color: #34D399; border: 1px solid rgba(16, 185, 129, 0.3); }
.btn-success:hover { background-color: var(--admin-success); color: white; }

.btn-sm {
  padding: 6px 12px;
  min-height: 38px;
  font-size: 12px;
}

.form-control-admin {
  background-color: #0F172A;
  border: 1px solid var(--admin-border-light);
  color: #FFFFFF;
  padding: 10px 12px;
  min-height: 44px;
  border-radius: 8px;
  font-size: 13.5px;
  outline: none;
  width: 100%;
}

.form-control-admin:focus {
  border-color: var(--admin-primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Toast */
.admin-toast {
  position: fixed;
  bottom: 80px;
  right: 20px;
  background-color: #1E293B;
  color: #FFFFFF;
  border: 1px solid var(--admin-primary);
  padding: 12px 18px;
  border-radius: 10px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  font-size: 13px;
  font-weight: 600;
  display: none;
  z-index: 999;
}

/* ========================================================
   Mobile Bottom Navigation Bar (< 992px)
   ======================================================== */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--admin-bottom-nav-h);
  background-color: #0F172A;
  border-top: 1px solid var(--admin-border);
  z-index: 90;
  padding-bottom: env(safe-area-inset-bottom);
  align-items: center;
  justify-content: space-around;
}

.bottom-nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: #94A3B8;
  text-decoration: none;
  font-size: 11px;
  font-weight: 700;
  gap: 3px;
  min-height: 44px;
}

.bottom-nav-item span.icon {
  font-size: 18px;
}

.bottom-nav-item.active {
  color: #60A5FA;
}

/* ========================================================
   Responsive Media Queries (< 992px: Mobile & Tablet)
   ======================================================== */
@media (max-width: 991px) {
  .admin-sidebar {
    transform: translateX(-100%);
    width: 280px;
    box-shadow: 5px 0 25px rgba(0, 0, 0, 0.6);
  }

  .admin-sidebar.open {
    transform: translateX(0);
  }

  .mobile-close-btn {
    display: inline-flex;
  }

  .admin-main {
    margin-left: 0;
    width: 100%;
  }

  .mobile-menu-btn {
    display: inline-flex;
  }

  .header-status-group {
    display: none; /* 모바일 헤더 단순화 */
  }

  .admin-content {
    padding: 16px 14px calc(var(--admin-bottom-nav-h) + 24px) 14px;
  }

  .mobile-bottom-nav {
    display: flex;
  }

  .stat-cards-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .stat-card {
    padding: 14px;
  }

  .stat-card-value {
    font-size: 20px;
  }

  .admin-toast {
    bottom: calc(var(--admin-bottom-nav-h) + 16px);
    right: 14px;
    left: 14px;
  }
}

@media (max-width: 480px) {
  .stat-cards-grid {
    grid-template-columns: 1fr;
  }

  .page-title-row h2 {
    font-size: 18px;
  }

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

  .page-title-row > div:last-child {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .page-title-row .btn {
    width: 100%;
  }
}