/* Admin Panel & Teacher Dashboard Styles */

.auth-wrapper {
  max-width: 420px;
  margin: 4rem auto;
  background-color: var(--bg-secondary);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.auth-header {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-header h1 {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

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

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text-main);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background-color: var(--bg-surface);
  border: 1px solid var(--bg-card-border);
  color: var(--text-main);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-family: var(--font-sans);
  transition: all var(--transition-normal);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-glow);
}

.form-textarea {
  min-height: 85px;
  resize: vertical;
}

/* Admin Tabs */
.admin-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--bg-card-border);
  padding-bottom: 0.5rem;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.65rem 1.25rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-main);
  background-color: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
  color: #0b0f19;
  background-color: var(--accent-primary);
}

/* Form Sections */
.form-section {
  background: var(--bg-secondary);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-bottom: 1.75rem;
}

.form-section-title {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--accent-primary);
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--bg-card-border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

/* Dynamic Attribute Row */
.attribute-row {
  display: grid;
  grid-template-columns: 2fr 2fr 1fr auto;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 0.75rem;
  padding: 0.5rem;
  background-color: var(--bg-surface);
  border-radius: var(--radius-sm);
}

/* Admin List Table */
.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table th,
.admin-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--bg-card-border);
  font-size: 0.9rem;
}

.admin-table th {
  background-color: var(--bg-surface);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
}

@media (max-width: 767px) {
  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }
  .attribute-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
}

/* Tree Contextual and Badges for MVP 002 */
.badge-authorized {
  background-color: rgba(6, 182, 212, 0.2);
  color: #38bdf8;
  border: 1px solid #0284c7;
  font-size: 0.72rem;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  display: inline-block;
}

.badge-readonly {
  background-color: rgba(148, 163, 184, 0.15);
  color: #94a3b8;
  border: 1px solid #475569;
  font-size: 0.72rem;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  display: inline-block;
}

.category-node-readonly {
  opacity: 0.65;
}

.category-node-authorized {
  font-weight: 600;
  color: #38bdf8;
}

.checklist-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0;
  font-size: 0.88rem;
  color: var(--text-main);
  cursor: pointer;
}

.checklist-item input[type="checkbox"] {
  cursor: pointer;
}

/* Multiple Image Previews in Admin */
.admin-image-preview-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.85rem;
  margin-top: 0.75rem;
}

.admin-image-preview-item {
  background: var(--bg-surface);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color var(--transition-fast);
}

.admin-image-preview-item.is-primary {
  border-color: var(--accent-primary);
  box-shadow: 0 0 8px rgba(56, 189, 248, 0.25);
}

.admin-preview-img-wrap {
  position: relative;
  width: 100%;
  height: 95px;
  background: #000;
}

.admin-preview-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.btn-remove-preview {
  position: absolute;
  top: 0.35rem;
  right: 0.35rem;
  background: rgba(239, 68, 68, 0.85);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-remove-preview:hover {
  background: #dc2626;
}

.admin-preview-controls {
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.admin-primary-radio-label {
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  color: var(--text-muted);
}

.admin-image-preview-item.is-primary .admin-primary-radio-label {
  color: var(--accent-primary);
  font-weight: 600;
}

.admin-preview-caption-input {
  font-size: 0.75rem;
  padding: 0.25rem 0.4rem;
}