:root {
  color-scheme: light;
  --admin-ink: #0f172a;
  --admin-muted: #64748b;
  --admin-border: #e2e8f0;
  --admin-border-focus: #3b82f6;
  --admin-surface: rgba(255, 255, 255, 0.96);
  --admin-surface-card: #ffffff;
  --admin-blue: #1d4ed8;
  --admin-blue-hover: #1e40af;
  --admin-blue-soft: #eff6ff;
  --admin-danger: #dc2626;
  --admin-danger-soft: #fef2f2;
  --admin-success: #16a34a;
  --admin-success-soft: #f0fdf4;
  --admin-gold: #d97706;
  --admin-gold-soft: #fffbeb;
  --admin-purple: #7c3aed;
  --admin-purple-soft: #f5f3ff;
  --admin-shadow: 0 10px 30px -5px rgba(15, 23, 42, 0.07), 0 4px 10px -3px rgba(15, 23, 42, 0.04);
  --admin-shadow-lg: 0 20px 40px -10px rgba(15, 23, 42, 0.12), 0 8px 16px -4px rgba(15, 23, 42, 0.06);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-pill: 9999px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--admin-ink);
  background:
    radial-gradient(circle at 10% 0%, rgba(219, 234, 254, 0.7), transparent 35rem),
    radial-gradient(circle at 90% 15%, rgba(243, 232, 255, 0.6), transparent 30rem),
    linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

button, input, select { font: inherit; }

.is-hidden { display: none !important; }

.admin-shell {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
  padding: 36px 0 72px;
}

/* Header */
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 28px;
  margin-bottom: 24px;
}
.admin-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--admin-blue);
  text-decoration: none;
  font-size: 0.84rem;
  font-weight: 700;
  transition: transform 0.16s ease;
}
.admin-back:hover { transform: translateX(-2px); }
.admin-kicker, .admin-eyebrow {
  margin: 16px 0 6px;
  color: var(--admin-blue);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.admin-header h1 {
  margin: 0;
  font-size: clamp(1.8rem, 3.2vw, 2.45rem);
  letter-spacing: -0.04em;
  color: #0f172a;
}
.admin-subtitle {
  max-width: 680px;
  margin: 10px 0 0;
  color: var(--admin-muted);
  line-height: 1.55;
  font-size: 0.92rem;
}
.admin-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.admin-identity {
  color: #334155;
  background: rgba(255, 255, 255, 0.85);
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--admin-border);
  font-size: 0.8rem;
  font-weight: 600;
  box-shadow: 0 2px 6px rgba(0,0,0,0.03);
}

/* Alert System */
.admin-alert {
  min-height: 0;
  margin-bottom: 20px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  line-height: 1.45;
  display: none;
  transition: all 0.2s ease;
}
.admin-alert:not(:empty) {
  display: block;
  padding: 14px 18px;
  background: var(--admin-blue-soft);
  color: #1e3a8a;
  border: 1px solid rgba(59, 130, 246, 0.25);
}
.admin-alert.is-error {
  background: var(--admin-danger-soft);
  color: var(--admin-danger);
  border-color: rgba(220, 38, 38, 0.25);
}

/* Login Card */
.admin-login-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.95fr);
  gap: 32px;
  align-items: center;
  margin-bottom: 24px;
  padding: 28px;
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--radius-lg);
  background: rgba(239, 246, 255, 0.85);
  backdrop-filter: blur(12px);
  box-shadow: var(--admin-shadow-lg);
}
.admin-login-card h2 { margin: 0; font-size: 1.25rem; color: #1e3a8a; }
.admin-login-card p:not(.admin-eyebrow) {
  max-width: 54ch;
  margin: 10px 0 0;
  color: #475569;
  font-size: 0.86rem;
  line-height: 1.55;
}
.admin-login-form { display: grid; gap: 12px; }
.admin-login-form label { display: grid; gap: 6px; color: #334155; font-size: 0.76rem; font-weight: 750; }
.admin-check-label {
  display: flex !important;
  align-items: center;
  grid-template-columns: auto 1fr;
  gap: 8px !important;
  font-weight: 600 !important;
  color: #475569 !important;
}
.admin-check-label input { accent-color: var(--admin-blue); width: 16px; height: 16px; }
.admin-login-card.is-authenticated { display: none; }
.admin-protected.is-locked { display: none; }

/* Base Card Style */
.admin-card {
  padding: 24px;
  border: 1px solid var(--admin-border);
  border-radius: var(--radius-lg);
  background: var(--admin-surface);
  box-shadow: var(--admin-shadow);
  margin-bottom: 20px;
}
.admin-card-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}
.admin-card-heading h2 { margin: 0; font-size: 1.15rem; letter-spacing: -0.02em; color: #0f172a; }
.admin-card-heading h3 { margin: 0; font-size: 1.05rem; letter-spacing: -0.01em; color: #0f172a; }
.admin-step, .admin-count {
  display: inline-grid;
  place-items: center;
  min-width: 32px;
  height: 32px;
  padding: 0 10px;
  border-radius: var(--radius-pill);
  background: var(--admin-blue-soft);
  color: var(--admin-blue);
  font-size: 0.75rem;
  font-weight: 800;
}

/* Forms & Inputs */
.admin-form { display: grid; gap: 14px; }
.admin-form label { display: grid; gap: 7px; color: #334155; font-size: 0.76rem; font-weight: 750; }
.admin-input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--admin-border);
  border-radius: var(--radius-md);
  outline: 0;
  background: #fff;
  color: var(--admin-ink);
  font-size: 0.88rem;
  transition: border-color 0.16s ease, box-shadow 0.16s ease;
}
.admin-input:focus {
  border-color: var(--admin-border-focus);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}
.admin-button {
  border: 0;
  border-radius: var(--radius-md);
  padding: 11px 18px;
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 750;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}
.admin-button:hover { transform: translateY(-1px); }
.admin-button:active { transform: translateY(0); }
.admin-button:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }
.admin-button-primary {
  background: var(--admin-blue);
  color: #fff;
  box-shadow: 0 6px 16px rgba(29, 78, 216, 0.22);
}
.admin-button-primary:hover { background: var(--admin-blue-hover); }
.admin-button-secondary {
  background: #ffffff;
  border: 1px solid var(--admin-border);
  color: #334155;
}
.admin-button-secondary:hover { background: #f8fafc; border-color: #cbd5e1; }
.admin-button-danger {
  color: var(--admin-danger);
  background: var(--admin-danger-soft);
  border: 1px solid rgba(220, 38, 38, 0.18);
}
.admin-button-danger:hover { background: #fee2e2; }
.btn-block { width: 100%; }

/* BƯỚC 1: Search Card */
.search-card {
  border: 1px solid rgba(59, 130, 246, 0.22);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(239, 246, 255, 0.7));
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.06);
}
.student-search-input-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
}
.target-mssv-input {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 14px 16px;
}
.search-submit-btn {
  padding: 14px 24px;
  font-size: 0.92rem;
  font-weight: 800;
  white-space: nowrap;
}
.admin-field-hint {
  margin: 10px 0 0;
  color: var(--admin-muted);
  font-size: 0.8rem;
  line-height: 1.5;
}

/* BƯỚC 2: Student Status Panel & Banner */
.student-status-panel { margin-bottom: 24px; }
.student-banner-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 22px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(37, 99, 235, 0.2);
  background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 50%, #2563eb 100%);
  color: #fff;
  box-shadow: var(--admin-shadow-lg);
  margin-bottom: 18px;
}
.student-banner-left {
  display: flex;
  align-items: center;
  gap: 18px;
  min-width: 0;
}
.status-avatar-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  overflow: hidden;
  flex: 0 0 64px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid rgba(255, 255, 255, 0.85);
  font-size: 1.4rem;
  font-weight: 850;
  color: #fff;
}
.status-avatar-circle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.student-banner-copy { min-width: 0; }
.student-banner-title-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.student-banner-title-row h2 {
  margin: 0;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  color: #fff;
}
.badge-mssv {
  background: rgba(255, 255, 255, 0.22);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.74rem;
  font-weight: 750;
  letter-spacing: 0.04em;
}
.student-banner-subtitle {
  margin: 6px 0 0;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.82);
}
.student-banner-stats {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.stat-pill {
  display: grid;
  gap: 2px;
  text-align: center;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(8px);
}
.stat-pill .stat-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.75);
  font-weight: 700;
}
.stat-pill strong {
  font-size: 1rem;
  color: #fff;
}

/* 3 Cột Trạng Thái Hiện Tại */
.status-grid-three {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.status-card {
  margin-bottom: 0;
  min-height: 240px;
  display: flex;
  flex-direction: column;
}
.status-item-list {
  display: grid;
  gap: 9px;
  flex: 1;
  max-height: 280px;
  overflow-y: auto;
  padding-right: 4px;
}
.status-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--admin-border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.85);
  transition: all 0.16s ease;
}
.status-item-row:hover {
  background: #fff;
  border-color: #cbd5e1;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}
.status-item-copy { min-width: 0; display: grid; gap: 3px; flex: 1; }
.status-item-header { display: flex; align-items: center; gap: 8px; }
.status-item-copy strong {
  font-size: 0.82rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: #0f172a;
}
.status-item-copy small {
  color: var(--admin-muted);
  font-size: 0.7rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.btn-revoke {
  border: 0;
  background: var(--admin-danger-soft);
  color: var(--admin-danger);
  padding: 5px 9px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 750;
  transition: all 0.16s ease;
  white-space: nowrap;
}
.btn-revoke:hover {
  background: #fee2e2;
  color: #991b1b;
}

/* Trạng thái Avatar Hiện Tại */
.avatar-current-details {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 14px;
  padding: 14px 0;
  flex: 1;
  justify-content: center;
}
.avatar-current-preview-box {
  position: relative;
  display: grid;
  place-items: center;
}
.avatar-preview {
  width: 78px;
  height: 78px;
  border-radius: 50%;
  overflow: hidden;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: #fff;
  font-size: 1.6rem;
  font-weight: 850;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
  border: 3px solid #fff;
}
.avatar-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.avatar-current-meta {
  display: grid;
  gap: 5px;
  width: 100%;
}
.avatar-current-meta strong {
  font-size: 0.95rem;
  color: #0f172a;
}
.avatar-url-text {
  font-size: 0.7rem;
  color: var(--admin-muted);
  word-break: break-all;
  max-width: 90%;
  margin: 0 auto;
}
.avatar-source-badge {
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: #f1f5f9;
  color: #475569;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.03em;
}
.avatar-source-badge.is-override {
  background: var(--admin-success-soft);
  color: var(--admin-success);
}
.avatar-source-badge.is-bdu {
  background: var(--admin-blue-soft);
  color: var(--admin-blue);
}
.avatar-override-actions { margin-top: 6px; }
.avatar-override-tag {
  display: inline-block;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  background: var(--admin-gold-soft);
  color: var(--admin-gold);
  font-size: 0.68rem;
  font-weight: 700;
}

/* BƯỚC 3: Actions Section */
.student-actions-panel { margin-bottom: 24px; }
.actions-section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}
.actions-section-header h2 {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: #0f172a;
}
.actions-target-badge {
  background: var(--admin-blue-soft);
  color: var(--admin-blue);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 750;
}
.actions-grid-three {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.action-card {
  margin-bottom: 0;
  display: flex;
  flex-direction: column;
}
.action-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--admin-border);
}
.action-card-badge {
  font-size: 0.75rem;
  font-weight: 800;
  color: #334155;
}
.action-card-header h4 {
  margin: 0;
  font-size: 0.95rem;
  color: #0f172a;
}
.admin-form-actions-stack {
  display: grid;
  gap: 8px;
  margin-top: 6px;
}

/* Avatar Dropzone */
.avatar-dropzone {
  display: grid;
  place-items: center;
  min-height: 110px;
  padding: 16px;
  border: 1px dashed #93c5fd;
  border-radius: var(--radius-md);
  background: rgba(239, 246, 255, 0.7);
  color: #1e3a8a;
  cursor: pointer;
  text-align: center;
  transition: all 0.16s ease;
}
.avatar-dropzone:hover, .avatar-dropzone.is-dragging {
  border-color: var(--admin-blue);
  background: #eff6ff;
  transform: scale(1.01);
}
.avatar-dropzone-title { font-size: 0.82rem; font-weight: 800; }
.avatar-dropzone small { margin-top: 4px; color: var(--admin-muted); font-size: 0.68rem; }
.avatar-file-selected-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: var(--admin-success-soft);
  color: var(--admin-success);
  font-size: 0.76rem;
  font-weight: 700;
}

/* Rarity Badges */
.rarity-badge {
  display: inline-block;
  padding: 2px 7px;
  border-radius: var(--radius-pill);
  font-size: 0.62rem;
  font-weight: 800;
  text-transform: uppercase;
}
.rarity-vip { background: #fef3c7; color: #b45309; border: 1px solid #fde68a; }
.rarity-legendary { background: #fae8ff; color: #86198f; border: 1px solid #f5d0fe; }
.rarity-epic { background: #ede9fe; color: #6d28d9; border: 1px solid #ddd6fe; }
.rarity-rare { background: #e0f2fe; color: #0369a1; border: 1px solid #bae6fd; }
.rarity-common { background: #f1f5f9; color: #475569; border: 1px solid #e2e8f0; }

/* Catalog List */
.catalog-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.catalog-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--admin-border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.8);
  min-height: 80px;
}
.catalog-copy { min-width: 0; display: grid; gap: 3px; }
.catalog-copy strong { font-size: 0.82rem; color: #0f172a; }
.catalog-copy small { font-size: 0.7rem; color: var(--admin-muted); }
.catalog-type {
  flex: 0 0 auto;
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  font-size: 0.62rem;
  font-weight: 800;
  text-transform: uppercase;
}
.catalog-type-title { background: #fef3c7; color: #92400e; }
.catalog-type-frame { background: #e0e7ff; color: #3730a3; }
.catalog-type-capability { background: #f3e8ff; color: #6b21a8; }

.catalog-heading-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Item Editor Form Panel */
.item-editor-card {
  padding: 20px;
  margin-bottom: 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(59, 130, 246, 0.35);
  background: linear-gradient(135deg, rgba(239, 246, 255, 0.95), rgba(255, 255, 255, 0.98));
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.09);
  animation: fadeIn 0.2s ease-out;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}
.item-editor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--admin-border);
}
.item-editor-header h3 {
  margin: 0;
  font-size: 1.05rem;
  color: var(--admin-blue);
}
.btn-close-text {
  border: 0;
  background: transparent;
  color: var(--admin-muted);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 700;
}
.btn-close-text:hover { color: var(--admin-danger); }
.editor-form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
@media (max-width: 768px) {
  .editor-form-grid { grid-template-columns: 1fr; }
}

/* Catalog Row enhancements */
.catalog-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.status-inactive-badge {
  padding: 1px 6px;
  border-radius: var(--radius-pill);
  background: #fee2e2;
  color: #b91c1c;
  font-size: 0.62rem;
  font-weight: 800;
}
.catalog-row.is-inactive {
  opacity: 0.65;
  background: #f8fafc;
  border-style: dashed;
}
.catalog-actions-cell {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.btn-catalog-edit, .btn-catalog-delete {
  border: 1px solid var(--admin-border);
  background: #fff;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.68rem;
  font-weight: 750;
  transition: all 0.16s ease;
}
.btn-catalog-edit { color: var(--admin-blue); }
.btn-catalog-edit:hover { background: var(--admin-blue-soft); border-color: var(--admin-blue); }
.btn-catalog-delete { color: var(--admin-danger); }
.btn-catalog-delete:hover { background: var(--admin-danger-soft); border-color: var(--admin-danger); }
.btn-catalog-delete.is-reactivate { color: var(--admin-success); }
.btn-catalog-delete.is-reactivate:hover { background: var(--admin-success-soft); border-color: var(--admin-success); }

.audit-action-create_item { background: #f0fdf4; color: #166534; }
.audit-action-update_item { background: #eff6ff; color: #1e40af; }
.audit-action-delete_item { background: #fef2f2; color: #991b1b; }

/* Audit Trail Table */
.admin-table-wrap { overflow-x: auto; }
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.75rem;
}
.admin-table th {
  padding: 11px 12px;
  color: var(--admin-muted);
  border-bottom: 1px solid var(--admin-border);
  text-align: left;
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.admin-table td {
  padding: 12px;
  border-bottom: 1px solid #f1f5f9;
  vertical-align: middle;
}
.audit-action-tag {
  display: inline-block;
  padding: 2px 7px;
  border-radius: var(--radius-pill);
  font-size: 0.64rem;
  font-weight: 800;
  text-transform: uppercase;
}
.audit-action-grant { background: var(--admin-success-soft); color: var(--admin-success); }
.audit-action-revoke { background: var(--admin-danger-soft); color: var(--admin-danger); }
.audit-action-upload { background: var(--admin-blue-soft); color: var(--admin-blue); }

/* VPS Avatar List */
.avatar-list-toolbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.avatar-list {
  display: grid;
  gap: 8px;
  max-height: 380px;
  overflow-y: auto;
}
.avatar-list-row {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--admin-border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.85);
}
.avatar-list-thumb {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  overflow: hidden;
  background: #e2e8f0;
}
.avatar-list-thumb img { width: 100%; height: 100%; object-fit: cover; }
.avatar-list-copy strong { font-size: 0.8rem; color: #0f172a; }
.avatar-list-copy small {
  font-size: 0.68rem;
  color: var(--admin-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.avatar-list-row button {
  border: 1px solid var(--admin-border);
  background: #fff;
  color: var(--admin-blue);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 750;
  transition: all 0.16s ease;
}
.avatar-list-row button:hover {
  background: var(--admin-blue);
  color: #fff;
  border-color: var(--admin-blue);
}

.admin-empty {
  margin: 0;
  padding: 24px 0;
  color: var(--admin-muted);
  font-size: 0.84rem;
  text-align: center;
}

/* Responsive Media Queries */
@media (max-width: 960px) {
  .status-grid-three, .actions-grid-three {
    grid-template-columns: 1fr;
  }
  .catalog-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .student-banner-card {
    flex-direction: column;
    align-items: flex-start;
  }
  .student-banner-stats {
    width: 100%;
    justify-content: space-between;
  }
  .stat-pill { flex: 1; }
}

@media (max-width: 768px) {
  .admin-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .admin-header-actions {
    width: 100%;
    justify-content: space-between;
  }
  .admin-login-card {
    grid-template-columns: 1fr;
  }
  .student-search-input-wrap {
    grid-template-columns: 1fr;
  }
  .catalog-list {
    grid-template-columns: 1fr;
  }
  .admin-table {
    min-width: 680px;
  }
}