/* ==========================================================================
   Admin Page Styles
   ==========================================================================
   Desktop-first design. Teacher uses this on 1280px+ screen.
   Two-column layout: sidebar + main content area.
   ========================================================================== */

/* --------------------------------------------------------------------------
   ADMIN LOGIN PAGE
   -------------------------------------------------------------------------- */

.admin-login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(255, 243, 191, 0.72), rgba(239, 253, 246, 0.55)),
    var(--color-background);
  padding: var(--space-4);
}

.admin-login-card {
  width: 100%;
  max-width: 420px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-8);
  border: 2px solid var(--color-accent-100);
}

.admin-login-header {
  text-align: center;
  margin-bottom: var(--space-6);
}

.admin-login-logo {
  width: 180px;
  height: 48px;
  object-fit: contain;
  margin-bottom: var(--space-3);
}

.admin-login-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.admin-login-subtitle {
  max-width: 22rem;
  margin: 0 auto;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}

.admin-login-form .form-group {
  margin-bottom: var(--space-4);
}

.admin-login-error {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-4);
  text-align: center;
}

.admin-login-btn {
  width: 100%;
}

/* --------------------------------------------------------------------------
   PAGE LAYOUT
   -------------------------------------------------------------------------- */

.admin-page {
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(255, 243, 191, 0.44) 0, rgba(255, 248, 236, 0) 360px),
    repeating-linear-gradient(45deg, rgba(255, 198, 176, 0.14) 0 1px, transparent 1px 18px),
    var(--color-background);
  display: flex;
  flex-direction: column;
}

.admin-header {
  background-color: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid var(--color-border-light);
  padding: 0 var(--space-6);
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.admin-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.admin-header-left {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.admin-header-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.admin-header-logo {
  width: 38px;
  height: 38px;
  color: var(--color-primary-600);
  object-fit: cover;
  object-position: left center;
  border-radius: var(--radius-full);
  background: var(--color-accent-100);
  box-shadow: 0 0 0 4px rgba(255, 243, 191, 0.52);
}

.admin-header-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  line-height: var(--line-height-tight);
}

.admin-header-subtitle {
  margin-top: 2px;
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.admin-header-date {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  font-weight: var(--font-weight-normal);
}

.admin-header-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.admin-header-present-btn {
  box-shadow: 0 6px 16px rgba(230, 83, 50, 0.2);
}

.admin-refresh-pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 var(--space-3);
  border-radius: var(--radius-full);
  background-color: var(--color-success-light);
  color: var(--color-success-dark);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
}

/* --------------------------------------------------------------------------
   DASHBOARD LAYOUT — Sidebar + Main
   -------------------------------------------------------------------------- */

.admin-body {
  display: flex;
  flex: 1;
  min-height: 0;
}

/* Sidebar */
.admin-sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 251, 234, 0.92)),
    var(--color-surface);
  border-right: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
  height: calc(100vh - var(--header-height));
  position: sticky;
  top: var(--header-height);
  overflow: hidden;
}

.admin-sidebar-header {
  padding: var(--space-5) var(--space-4) var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
}

.admin-sidebar-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.admin-sidebar-subtitle {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.admin-sidebar-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-2);
}

.admin-sidebar-list::-webkit-scrollbar {
  width: 4px;
}

.admin-sidebar-list::-webkit-scrollbar-thumb {
  background-color: var(--color-neutral-200);
}

.admin-sidebar-empty {
  padding: var(--space-8) var(--space-4);
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
}

/* Main content area */
.admin-main {
  flex: 1;
  padding: var(--space-6);
  overflow-y: auto;
  min-width: 0;
}

.admin-command-center {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
  align-items: start;
  margin-bottom: var(--space-5);
  padding: var(--space-6);
  background:
    linear-gradient(135deg, rgba(255, 243, 191, 0.92), rgba(215, 248, 232, 0.88)),
    var(--color-surface);
  border: 2px solid rgba(255, 230, 128, 0.72);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.admin-command-center .admin-filter-bar {
  justify-self: start;
}

.admin-eyebrow {
  margin-bottom: var(--space-2);
  color: var(--color-primary-700);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
}

.admin-command-title {
  margin: 0;
  font-size: var(--font-size-2xl);
  line-height: var(--line-height-tight);
}

.admin-command-desc {
  max-width: 46rem;
  margin: var(--space-2) 0 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.admin-overview-row {
  margin-bottom: var(--space-5);
}

.admin-workflow-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.8fr);
  gap: var(--space-5);
  align-items: start;
  margin-bottom: var(--space-6);
}

.admin-section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.admin-section-heading-centered {
  display: block;
  text-align: center;
}

/* --------------------------------------------------------------------------
   STATS BAR
   -------------------------------------------------------------------------- */

.admin-stats {
  display: flex;
  gap: var(--space-4);
  margin-bottom: 0;
  flex-wrap: wrap;
}

.admin-stat-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  border: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  min-width: 190px;
  box-shadow: var(--shadow-card);
}

.admin-stat-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.admin-stat-icon svg {
  width: 22px;
  height: 22px;
}

.admin-stat-icon.photos {
  background-color: var(--color-primary-100);
  color: var(--color-primary-700);
}

.admin-stat-icon.students {
  background-color: var(--color-secondary-100);
  color: var(--color-secondary-700);
}

.admin-stat-info .stat-value {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  line-height: 1;
}

.admin-stat-info .stat-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-top: var(--space-1);
}

/* --------------------------------------------------------------------------
   DATE FILTER BAR
   -------------------------------------------------------------------------- */

.admin-filter-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: 0;
  padding: var(--space-2);
  background-color: rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.85);
  flex-wrap: wrap;
  box-shadow: var(--shadow-xs);
}

.admin-filter-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.admin-filter-label svg {
  width: 18px;
  height: 18px;
  color: var(--color-text-tertiary);
}

.admin-date-input {
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 40px;
}

.admin-date-input:hover {
  border-color: var(--color-primary-300);
}

.admin-date-input:focus {
  border-color: var(--color-primary-500);
  box-shadow: var(--shadow-focus);
  outline: none;
}

/* --------------------------------------------------------------------------
   TOPIC SECTION
   -------------------------------------------------------------------------- */

.admin-topic-section {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1px solid rgba(255, 198, 176, 0.7);
  margin-bottom: 0;
  box-shadow: var(--shadow-card);
}

.admin-topic-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.admin-topic-title svg {
  width: 22px;
  height: 22px;
  color: var(--color-primary-600);
}

.admin-topic-display {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  padding: var(--space-4);
  background: linear-gradient(135deg, var(--color-primary-50), var(--color-accent-50));
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-primary-100);
}

.admin-topic-current {
  flex: 1;
  min-width: 0;
}

.admin-topic-current-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.admin-topic-current-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  white-space: pre-wrap;
}

.admin-topic-form .form-group {
  margin-bottom: var(--space-3);
}

.admin-topic-form-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
}

/* --------------------------------------------------------------------------
   QR CODE SECTION
   -------------------------------------------------------------------------- */

.admin-qr-section {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1px solid rgba(178, 239, 213, 0.9);
  margin-bottom: 0;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.admin-qr-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.admin-qr-title svg {
  width: 22px;
  height: 22px;
  color: var(--color-secondary-600);
}

.admin-qr-helper {
  max-width: 26rem;
  margin: 0 auto var(--space-4);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.admin-qr-image-wrapper {
  display: inline-block;
  padding: var(--space-3);
  background: linear-gradient(180deg, var(--color-neutral-0), var(--color-accent-50));
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  margin-bottom: var(--space-4);
  cursor: pointer;
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.admin-qr-image-wrapper:hover {
  box-shadow: var(--shadow-md);
  transform: scale(1.02);
}

.admin-qr-image {
  width: min(280px, 64vw);
  height: min(280px, 64vw);
  display: block;
}

/* QR skeleton */
.admin-qr-skeleton {
  width: min(280px, 64vw);
  height: min(280px, 64vw);
  border-radius: var(--radius-md);
}

.admin-qr-url {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-family: var(--font-family-mono);
  background-color: var(--color-neutral-50);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  display: inline-block;
  margin-bottom: var(--space-2);
  word-break: break-all;
  user-select: all;
}

.admin-qr-ip {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-4);
}

.admin-qr-refresh-btn {
  margin-top: var(--space-2);
}

/* --------------------------------------------------------------------------
   PHOTO GRID AREA
   -------------------------------------------------------------------------- */

.admin-photos-section {
  position: relative;
  background-color: var(--color-surface);
  border: 1px solid rgba(240, 223, 204, 0.94);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-card);
}

.admin-photos-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.admin-photos-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: 0;
}

.admin-photos-helper {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  text-align: right;
}

/* Admin photo card — slightly larger than student cards */
.admin-photo-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.admin-photo-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-accent-300);
}

.admin-photo-card:active {
  transform: translateY(-1px);
}

.admin-photo-card-thumb {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background-color: var(--color-neutral-100);
  display: block;
}

.admin-photo-card-body {
  padding: var(--space-3) var(--space-4);
}

.admin-photo-card-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: var(--space-1);
}

.admin-photo-card-desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: var(--line-height-normal);
  margin-bottom: var(--space-2);
}

.admin-photo-card-time {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

/* Image broken placeholder */
.admin-photo-card-placeholder {
  width: 100%;
  aspect-ratio: 1 / 1;
  background-color: var(--color-neutral-100);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-neutral-400);
}

.admin-photo-card-placeholder svg {
  width: 40px;
  height: 40px;
}

/* Admin empty state */
.admin-photos-empty {
  padding: var(--space-16) var(--space-4);
}

/* --------------------------------------------------------------------------
   ADMIN LIGHTBOX MODAL
   -------------------------------------------------------------------------- */

.admin-lightbox .modal-overlay {
  background-color: var(--color-overlay-heavy);
}

.admin-lightbox .modal-content {
  max-width: 900px;
  width: 95vw;
}

.admin-lightbox .modal-image {
  max-width: 100%;
  max-height: 60vh;
}

.admin-lightbox-image-frame {
  position: relative;
  text-align: center;
}

.admin-lightbox-loading {
  margin: var(--space-8) auto;
}

.admin-lightbox-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border-light);
  margin-top: var(--space-4);
}

.admin-lightbox-student {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.admin-lightbox-student strong {
  color: var(--color-text-primary);
}

.admin-lightbox-actions {
  display: flex;
  gap: var(--space-3);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border-light);
  margin-top: var(--space-3);
}

/* Photo card hidden overlay */
.admin-photo-card.is-hidden {
  opacity: 0.5;
  position: relative;
}

.admin-photo-card.is-hidden::after {
  content: '숨김';
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  background-color: var(--color-warning);
  color: white;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  z-index: 1;
}

.btn-danger {
  background-color: var(--color-error);
  color: white;
  border: 1px solid var(--color-error);
}

.btn-danger:hover {
  background-color: var(--color-error-dark);
  border-color: var(--color-error-dark);
}

/* --------------------------------------------------------------------------
   STUDENT LIST — Presentation button styling
   -------------------------------------------------------------------------- */

.student-present-btn {
  font-size: var(--font-size-xs);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background-color: var(--color-secondary-50);
  color: var(--color-secondary-700);
  border: 1px solid var(--color-secondary-200);
  white-space: nowrap;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  min-height: 28px;
}

.admin-qr-modal-content {
  background: var(--color-surface);
  padding: var(--space-6);
  text-align: center;
  max-width: 500px;
}

.admin-qr-modal-header {
  border: none;
  padding: 0 0 var(--space-4);
}

.admin-qr-modal-body {
  padding: 0;
}

.admin-qr-modal-image {
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
  display: block;
}

.student-present-btn:hover {
  background-color: var(--color-secondary-100);
  border-color: var(--color-secondary-400);
  color: var(--color-secondary-800);
}

.student-present-btn svg {
  width: 14px;
  height: 14px;
}

/* --------------------------------------------------------------------------
   RESPONSIVE: Tablet
   -------------------------------------------------------------------------- */

@media (max-width: 1023px) {
  .admin-body {
    flex-direction: column;
  }

  .admin-sidebar {
    width: 100%;
    min-width: 100%;
    height: auto;
    position: relative;
    top: 0;
    max-height: none;
    border-right: none;
    border-bottom: 1px solid var(--color-border-light);
  }

  .admin-sidebar-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    overflow-x: auto;
    overflow-y: visible;
  }

  .student-card {
    flex-shrink: 0;
    min-width: 200px;
    border: 1px solid var(--color-border-light);
  }

  .admin-main {
    padding: var(--space-4);
  }

  .admin-command-center,
  .admin-workflow-grid {
    grid-template-columns: 1fr;
  }

  .admin-qr-section {
    padding: var(--space-4);
  }

  .admin-qr-image {
    width: min(240px, 70vw);
    height: min(240px, 70vw);
  }
}

/* --------------------------------------------------------------------------
   RESPONSIVE: Mobile
   -------------------------------------------------------------------------- */

@media (max-width: 767px) {
  .admin-header {
    padding: 0 var(--space-4);
  }

  .admin-header-date,
  .admin-header-subtitle {
    display: none;
  }

  .admin-header-present-btn,
  .admin-header-album-btn {
    padding-left: var(--space-3);
    padding-right: var(--space-3);
  }

  .admin-header-present-btn svg,
  .admin-header-album-btn svg {
    display: none;
  }

  .admin-command-center {
    padding: var(--space-4);
  }

  .admin-command-title {
    font-size: var(--font-size-xl);
  }

  .admin-stats {
    flex-direction: column;
    gap: var(--space-3);
  }

  .admin-stat-card {
    min-width: 100%;
  }

  .admin-filter-bar {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-2);
  }

  .admin-date-input {
    width: 100%;
  }

  .admin-date-picker {
    width: 100%;
  }

  .admin-qr-image {
    width: min(220px, 68vw);
    height: min(220px, 68vw);
  }

  .admin-photos-section {
    padding: var(--space-4);
  }

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

  .admin-photos-helper {
    text-align: left;
  }

  .photo-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }
}

/* --------------------------------------------------------------------------
   RESPONSIVE: Large Desktop
   -------------------------------------------------------------------------- */

@media (min-width: 1440px) {
  .admin-main {
    padding: var(--space-8);
  }

  .admin-sidebar {
    width: 340px;
    min-width: 340px;
  }
}

/* --------------------------------------------------------------------------
   Design guide integration — Art Bonbon admin dashboard
   -------------------------------------------------------------------------- */

.admin-page {
  background:
    radial-gradient(circle at 8% 4%, rgba(255, 194, 61, 0.14), transparent 32%),
    radial-gradient(circle at 95% 6%, rgba(255, 107, 157, 0.12), transparent 30%),
    var(--art-cream);
}

.admin-header {
  background: rgba(255, 244, 230, 0.82);
  border-bottom: 0;
  box-shadow: none;
}

.admin-header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 10px 0;
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: 0 10px 30px rgba(49, 42, 63, 0.07);
}

.admin-header-left {
  padding-left: var(--space-4);
}

.admin-header-right {
  padding-right: var(--space-4);
  gap: var(--space-2);
}

.admin-header-logo {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-lg);
  background: #fff7ef;
  box-shadow: inset 0 0 0 2px #ffe2cf;
  transform: rotate(-6deg);
}

.admin-header-title,
.admin-command-title,
.admin-sidebar-title,
.admin-topic-title,
.admin-qr-title,
.admin-photos-title,
.photo-group-name,
.admin-photo-card-title,
.stat-value {
  font-family: var(--font-family-display);
  letter-spacing: 0;
}

.admin-body {
  width: min(100%, 1280px);
  margin: 0 auto;
  gap: 22px;
  padding: 0 26px 48px;
}

.admin-sidebar {
  top: calc(var(--header-height) + 22px);
  width: 258px;
  min-width: 258px;
  height: calc(100vh - var(--header-height) - 44px);
  margin-top: 22px;
  border: 0;
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: 0 10px 30px rgba(49, 42, 63, 0.06);
}

.admin-sidebar-header {
  border-bottom-color: #fff0e6;
}

.admin-sidebar-list {
  padding: var(--space-3);
}

.student-card {
  border-radius: var(--radius-lg);
  background: #fffaf3;
}

.student-card:hover {
  background: #fff2e3;
}

.student-card-avatar {
  border-radius: var(--radius-lg);
  background: var(--art-tangerine);
  color: #fff;
}

.student-card:nth-child(3n + 1) .student-card-avatar {
  background: var(--art-pink);
}

.student-card:nth-child(3n + 2) .student-card-avatar {
  background: var(--art-sky);
}

.admin-main {
  padding: 22px 0 0;
}

.admin-command-center {
  position: relative;
  overflow: hidden;
  padding: 26px 28px;
  border: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #fff3e0, #ffe9ef);
  box-shadow: 0 12px 32px rgba(240, 95, 42, 0.1);
}

.admin-command-center::after {
  content: "";
  position: absolute;
  top: -30px;
  right: -30px;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 40%, #ffd87a, #ffba2e);
  opacity: 0.35;
}

.admin-command-copy,
.admin-filter-bar {
  position: relative;
  z-index: 1;
}

.admin-eyebrow {
  display: inline-block;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  background: #fff;
  color: var(--art-orange);
  font-size: 0.75rem;
}

.admin-filter-bar,
.date-picker-toggle,
.admin-topic-section,
.admin-qr-section,
.admin-photos-section,
.admin-stat-card {
  border: 0;
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: 0 10px 26px rgba(49, 42, 63, 0.06);
}

.admin-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.admin-stat-card {
  min-width: 0;
  padding: var(--space-5);
}

.admin-stat-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
}

.admin-stat-icon.photos {
  background: #fff0e6;
  color: var(--art-orange);
}

.admin-stat-icon.students {
  background: #e7f9f3;
  color: #16a584;
}

.admin-stat-icon.public {
  background: #eaf5fe;
  color: #2f93d8;
}

.admin-stat-info .stat-value {
  color: var(--art-ink);
  font-size: 1.9rem;
}

.admin-workflow-grid {
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 1fr);
  gap: var(--space-4);
}

.admin-topic-display,
.today-topic,
.admin-topic-current {
  border-radius: var(--radius-lg);
}

.admin-topic-display {
  background: linear-gradient(135deg, #e7f9f3, #d7f5ec);
  border: 1.5px solid #b8ecdc;
}

.admin-topic-current-title {
  font-family: var(--font-family-display);
  color: #16745f;
}

.admin-topic-current-desc {
  color: #4f8a78;
}

.admin-topic-form .form-input,
.admin-topic-form .form-textarea,
.date-picker-toggle {
  border: 2px solid #f1e7da;
  background: var(--art-cream-2);
  box-shadow: none;
}

.admin-qr-image-wrapper {
  background: #fffaf3;
  border: 1.5px solid #ffe2cf;
}

.admin-photos-section {
  padding: var(--space-6);
}

.photo-group-header {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 13px 6px 7px;
  border-radius: var(--radius-full);
  background: #fffaf3;
  margin-bottom: var(--space-3);
}

.photo-group-header::before {
  content: "";
  width: 26px;
  height: 26px;
  border-radius: var(--radius-md);
  background: var(--art-tangerine);
}

/* Keep the custom calendar above the command card instead of clipping it. */
.admin-command-center {
  overflow: visible;
  isolation: isolate;
}

.admin-command-center::after {
  pointer-events: none;
  z-index: 0;
}

.admin-command-copy,
.admin-filter-bar {
  z-index: 2;
}

.admin-filter-bar,
.admin-date-picker {
  overflow: visible;
}

.admin-date-picker {
  z-index: 20;
}

.admin-date-picker .date-picker-popover {
  z-index: var(--z-modal);
}

.admin-sidebar .student-card {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) auto;
  align-items: center;
}

.admin-sidebar .student-card-actions {
  gap: 6px;
}

.admin-sidebar .student-present-btn {
  width: 32px;
  min-width: 32px;
  height: 32px;
  min-height: 32px;
  padding: 0;
  border-radius: var(--radius-md);
  font-size: 0;
}

.admin-sidebar .student-present-btn svg {
  width: 16px;
  height: 16px;
}

.photo-grid {
  gap: var(--space-4);
}

.admin-photo-card {
  border: 0;
  border-radius: var(--radius-lg);
  background: #fffaf3;
  box-shadow: 0 6px 16px rgba(49, 42, 63, 0.05);
}

.admin-photo-card-thumb {
  aspect-ratio: 1 / 0.72;
}

.admin-photo-card-body {
  padding: 12px 14px 14px;
}

.admin-photo-card-desc {
  color: #8a8298;
}

.admin-photo-card-time {
  color: #b3a9c0;
}

@media (max-width: 1023px) {
  .admin-header-inner {
    border-radius: 0;
  }

  .admin-body {
    display: block;
    padding: 0 var(--space-4) var(--space-8);
  }

  .admin-sidebar {
    width: 100%;
    min-width: 100%;
    height: auto;
    margin-top: var(--space-4);
  }
}

@media (max-width: 767px) {
  .admin-stats,
  .admin-workflow-grid {
    grid-template-columns: 1fr;
  }

  .admin-header-right {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .admin-photo-card-thumb {
    aspect-ratio: 1;
  }
}