/* ==========================================================================
   Admin Back-Office Portal Styles (太医院 掌事府 · 后台管理系统)
   Three Kingdoms / Ancient Chinese Imperial Aesthetics + Apple Typography
   ========================================================================== */

.admin-body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-sans);
  min-height: 100vh;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   ADMIN LOGIN SCREEN
   ========================================================================== */
.admin-login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, #2C1810 0%, #120D0A 100%);
  padding: 20px;
}

.admin-login-card {
  background: var(--bg-card);
  border: 2px solid var(--accent-gold);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 450px;
  padding: 36px 32px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(197, 160, 89, 0.3);
  position: relative;
  overflow: hidden;
}

.admin-login-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--primary), var(--accent-gold), var(--primary));
}

.admin-login-header {
  text-align: center;
  margin-bottom: 26px;
}

.admin-seal-emblem {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border: 2.5px solid var(--primary);
  border-radius: 10px;
  background: rgba(140, 29, 24, 0.08);
  color: var(--primary);
  font-family: var(--font-serif-zh);
  font-size: 1.8rem;
  font-weight: 900;
  margin-bottom: 14px;
  box-shadow: inset 0 0 0 2px rgba(140, 29, 24, 0.25);
}

.admin-login-header h2 {
  font-family: var(--font-serif-zh);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary-dark);
  margin-bottom: 4px;
  letter-spacing: 1px;
}

.admin-login-header h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.admin-login-header p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.admin-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.admin-submit-btn {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #FFFFFF;
  border: 1px solid rgba(197, 160, 89, 0.4);
  padding: 13px 20px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 4px 12px rgba(140, 29, 24, 0.3);
  font-family: var(--font-sans);
  margin-top: 6px;
}

.admin-submit-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(140, 29, 24, 0.4);
}

.admin-login-footer {
  text-align: center;
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.admin-login-footer a {
  color: var(--accent-gold-dark);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
}

.admin-login-footer a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   ADMIN DASHBOARD LAYOUT & TOPBAR
   ========================================================================== */
.admin-dashboard-layout {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.admin-topbar {
  background: var(--bg-card);
  border-bottom: 1.5px solid var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
  gap: 16px;
  flex-wrap: wrap;
}

.admin-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.admin-seal-mini {
  width: 34px;
  height: 34px;
  border: 1.5px solid var(--primary);
  border-radius: 6px;
  background: rgba(140, 29, 24, 0.08);
  color: var(--primary);
  font-family: var(--font-serif-zh);
  font-size: 1.15rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
}

.admin-brand-title {
  font-family: var(--font-serif-zh);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--primary-dark);
  line-height: 1.2;
}

.admin-brand-sub {
  font-size: 0.74rem;
  color: var(--text-muted);
}

.admin-nav-tabs {
  display: flex;
  gap: 6px;
  background: var(--bg-sidebar);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.adm-tab-btn {
  padding: 8px 14px;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-sans);
}

.adm-tab-btn:hover {
  color: var(--text-main);
}

.adm-tab-btn.active {
  background: var(--bg-card);
  color: var(--primary);
  font-weight: 700;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.admin-user-ctrl {
  display: flex;
  align-items: center;
  gap: 10px;
}

.admin-status-pill {
  font-size: 0.74rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  background: #DCFCE7;
  color: #15803D;
  border: 1px solid #86EFAC;
}

.admin-name-tag {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-main);
}

.btn-preview-site {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--accent-gold);
  border-radius: var(--radius-sm);
  color: var(--accent-gold-dark);
  font-size: 0.8rem;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s;
}

.btn-preview-site:hover {
  background: var(--accent-gold-light);
}

.adm-logout-btn {
  padding: 6px 12px;
  background: none;
  border: 1px solid var(--danger);
  color: var(--danger);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-serif-zh);
}

.adm-logout-btn:hover {
  background: var(--danger-light);
}

/* ==========================================================================
   ADMIN MAIN CONTENT & TOOLBAR
   ========================================================================== */
.admin-main {
  flex: 1;
  padding: 24px;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  box-sizing: border-box;
}

.adm-content-section {
  display: none;
}

.adm-content-section.active {
  display: block;
  animation: authFadeIn 0.25s ease;
}

.adm-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
  border-left: 4px solid var(--primary);
  padding-left: 14px;
}

.adm-section-header h2 {
  font-family: var(--font-serif-zh);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--primary-dark);
  margin-bottom: 4px;
}

.adm-section-header p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.admin-btn-action {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #FFFFFF;
  border: 1px solid rgba(197, 160, 89, 0.4);
  padding: 9px 18px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 2px 6px rgba(140, 29, 24, 0.25);
  font-family: var(--font-sans);
}

.admin-btn-action:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(140, 29, 24, 0.35);
}

/* Toolbar */
.adm-toolbar {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  margin-bottom: 18px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-sm);
}

.adm-search-wrap {
  position: relative;
  flex: 1;
  min-width: 250px;
  display: flex;
  align-items: center;
}

.adm-search-wrap .search-icon {
  position: absolute;
  left: 12px;
  opacity: 0.6;
}

.adm-search-wrap input {
  width: 100%;
  padding: 8px 12px 8px 36px;
  background: var(--bg-elevated);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.88rem;
  font-family: var(--font-sans);
  outline: none;
}

.adm-search-wrap input:focus {
  border-color: var(--accent-gold);
}

.adm-filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.adm-filter-group select {
  padding: 8px 12px;
  background: var(--bg-elevated);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.88rem;
  font-family: var(--font-sans);
  outline: none;
  cursor: pointer;
}

.adm-stats-text {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-left: auto;
}

/* ==========================================================================
   TABLE STYLES
   ========================================================================== */
.adm-table-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow-x: auto;
  box-shadow: var(--shadow-sm);
}

.adm-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.86rem;
}

.adm-table th {
  background: var(--bg-sidebar);
  padding: 12px 14px;
  font-weight: 700;
  color: var(--text-main);
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
}

.adm-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.adm-table tbody tr:hover {
  background: rgba(197, 160, 89, 0.04);
}

.adm-thumb-wrap {
  width: 48px;
  height: 48px;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: var(--bg-sidebar);
}

.adm-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.2s;
}

.adm-thumb-img:hover {
  transform: scale(1.15);
}

.adm-herb-name-zh {
  font-family: var(--font-serif-zh);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary-dark);
}

.adm-btn-edit {
  padding: 5px 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--primary);
  font-weight: 700;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
}

.adm-btn-edit:hover {
  background: var(--primary-light);
  border-color: var(--primary);
}

.adm-btn-del {
  padding: 5px 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--danger);
  border-radius: var(--radius-sm);
  color: var(--danger);
  font-weight: 700;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
}

.adm-btn-del:hover {
  background: var(--danger-light);
}

.adm-loading {
  text-align: center;
  padding: 30px;
  font-size: 1rem;
  color: var(--text-muted);
}

/* ==========================================================================
   CARDS & FORMS
   ========================================================================== */
.adm-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.max-w-700 { max-width: 700px; }
.max-w-600 { max-width: 600px; }

.adm-form-grid {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.adm-form-grid input,
.adm-form-grid textarea,
.adm-form-grid select {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-elevated);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.2s;
  box-sizing: border-box;
}

.adm-form-grid input:focus,
.adm-form-grid textarea:focus,
.adm-form-grid select:focus {
  border-color: var(--accent-gold);
}

.form-divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 10px 0;
  color: var(--accent-gold-dark);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.5px;
}

.form-divider::before,
.form-divider::after {
  content: "";
  flex: 1;
  border-bottom: 1px dashed var(--accent-gold);
}

.form-divider span {
  padding: 0 12px;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

/* ==========================================================================
   HERB EDIT MODAL
   ========================================================================== */
.admin-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(18, 16, 14, 0.78);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: authFadeIn 0.25s ease;
}

.admin-modal-dialog {
  background: var(--bg-card);
  border: 2px solid var(--accent-gold);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 900px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
  padding: 28px;
  position: relative;
}

.admin-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1.5px solid var(--border-color);
  padding-bottom: 14px;
  margin-bottom: 20px;
}

.admin-modal-header h3 {
  font-family: var(--font-serif-zh);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary-dark);
}

.modal-grid-2 {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 20px;
}

.adm-image-editor-col {
  display: flex;
  flex-direction: column;
  background: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
}

.adm-img-preview-box {
  width: 100%;
  height: 180px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: #000000;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 8px;
}

.adm-img-preview-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.btn-file-select {
  display: block;
  text-align: center;
  background: var(--bg-card);
  border: 1.5px dashed var(--accent-gold);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-gold-dark);
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 6px;
}

.btn-file-select:hover {
  background: var(--accent-gold-light);
  border-style: solid;
}

.adm-modal-form input,
.adm-modal-form textarea,
.adm-modal-form select {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-elevated);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.88rem;
  font-family: var(--font-sans);
  outline: none;
  box-sizing: border-box;
}

.adm-modal-form input:focus,
.adm-modal-form textarea:focus,
.adm-modal-form select:focus {
  border-color: var(--accent-gold);
}

.input-serif {
  font-family: var(--font-serif-zh) !important;
  font-weight: 800;
  font-size: 1.15rem !important;
}

.adm-modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  border-top: 1.5px solid var(--border-color);
  padding-top: 18px;
  margin-top: 24px;
}

.btn-cancel {
  padding: 9px 18px;
  background: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-cancel:hover {
  background: var(--border-color);
  color: var(--text-main);
}

/* Toast */
.adm-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #1C1917;
  color: #FFFFFF;
  border: 1px solid var(--accent-gold);
  border-left: 4px solid var(--primary);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  z-index: 99999;
  animation: authFadeIn 0.25s ease;
}

@media (max-width: 850px) {
  .modal-grid-2 {
    grid-template-columns: 1fr;
  }
  .form-row-2 {
    grid-template-columns: 1fr;
  }
}

/* Badge Level in Admin Table */
.badge-level {
  font-family: var(--font-serif-zh);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.5px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.badge-level .level-stars {
  font-size: 0.72rem;
  letter-spacing: -1px;
}

.badge-level[data-level="掌握"] {
  background: rgba(140, 29, 24, 0.08);
  color: #8C1D18;
  border: 1.5px solid #8C1D18;
  box-shadow: inset 0 0 0 1px rgba(140, 29, 24, 0.12);
}

.badge-level[data-level="熟悉"] {
  background: rgba(197, 160, 89, 0.15);
  color: #8A641A;
  border: 1.5px solid #B88E3E;
  box-shadow: inset 0 0 0 1px rgba(197, 160, 89, 0.2);
}

.badge-level[data-level="了解"] {
  background: rgba(38, 110, 82, 0.08);
  color: #1F6B4E;
  border: 1.5px solid #2E8A65;
  box-shadow: inset 0 0 0 1px rgba(38, 110, 82, 0.12);
}