:root {
  --primary: #8c16d5;
  --primary-dark: #650aa5;
  --primary-soft: #f7efff;
  --primary-light: #f0dfff;
  --success: #0f9f68;
  --danger: #e5484d;
  --warning: #f59e0b;
  --text: #0f1117;
  --muted: #6d6974;
  --line: #e9e5ee;
  --panel: #ffffff;
  --bg: #f7f6f9;
  --soft: #faf9fb;
  --shadow: 0 18px 42px rgba(20, 16, 31, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.boot-screen,
.login-screen {
  align-items: center;
  display: grid;
  min-height: 100vh;
  padding: 24px;
}

.boot-screen {
  color: var(--muted);
  gap: 12px;
  justify-content: center;
}

.spinner {
  animation: spin 0.8s linear infinite;
  border: 3px solid var(--primary-light);
  border-top-color: var(--primary);
  border-radius: 999px;
  display: inline-block;
  height: 28px;
  width: 28px;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.login-screen {
  background:
    linear-gradient(135deg, rgba(140, 22, 213, 0.08), transparent 40%),
    var(--bg);
  justify-items: center;
}

.login-panel,
.panel,
.metric,
.modal {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.login-panel {
  display: grid;
  gap: 20px;
  max-width: 430px;
  padding: 28px;
  width: 100%;
}

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

.brand-mark,
.avatar {
  align-items: center;
  background: linear-gradient(135deg, #f4e8ff, #fff4d5);
  color: var(--primary-dark);
  display: inline-flex;
  font-weight: 900;
  justify-content: center;
  overflow: hidden;
}

.brand-mark {
  border-radius: 12px;
  height: 46px;
  width: 46px;
}

.brand h1,
.page-title h1,
.panel h2,
.modal-title h2 {
  margin: 0;
}

.eyebrow {
  color: var(--primary);
  font-size: 0.76rem;
  font-weight: 900;
  margin: 0 0 4px;
  text-transform: uppercase;
}

.form,
.form-grid {
  display: grid;
  gap: 14px;
}

.form-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field {
  color: var(--muted);
  display: grid;
  font-size: 0.88rem;
  font-weight: 800;
  gap: 6px;
}

.field.wide {
  grid-column: 1 / -1;
}

.form-error {
  background: #fff1f1;
  border: 1px solid #ffd1d1;
  border-radius: 8px;
  color: var(--danger);
  font-size: 0.9rem;
  font-weight: 800;
  margin: 0;
  padding: 10px 12px;
}

input,
select,
textarea {
  background: #fff;
  border: 1px solid #dad6df;
  border-radius: 8px;
  color: var(--text);
  min-height: 44px;
  padding: 10px 12px;
  width: 100%;
}

textarea {
  min-height: 88px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: #b88be7;
  box-shadow: 0 0 0 4px rgba(140, 22, 213, 0.12);
  outline: 0;
}

.primary,
.secondary,
.danger,
.icon-btn,
.pill-btn {
  align-items: center;
  border: 0;
  border-radius: 8px;
  display: inline-flex;
  font-weight: 900;
  gap: 8px;
  justify-content: center;
  min-height: 42px;
  padding: 0 14px;
}

.primary {
  background: linear-gradient(180deg, #b21bea, var(--primary));
  color: #fff;
  box-shadow: 0 14px 28px rgba(140, 22, 213, 0.18);
}

.secondary {
  background: #fff;
  border: 1px solid var(--line);
  color: #5b5562;
}

.danger {
  background: #fff1f1;
  color: var(--danger);
}

.icon-btn {
  background: #f7f6f9;
  border-radius: 999px;
  color: #4b4652;
  height: 42px;
  padding: 0;
  width: 42px;
}

.app-frame {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  background: var(--panel);
  border-right: 1px solid var(--line);
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
  padding: 18px 14px;
  position: sticky;
  top: 0;
}

.nav {
  display: grid;
  gap: 6px;
  margin-top: 24px;
}

.nav button {
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: 8px;
  color: #5f5a66;
  display: flex;
  font-weight: 800;
  gap: 10px;
  min-height: 42px;
  padding: 0 12px;
  text-align: left;
}

.nav button.active {
  background: var(--primary-soft);
  color: var(--primary-dark);
}

.content {
  min-width: 0;
  padding: 18px;
}

.topbar {
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  display: grid;
  gap: 12px;
  grid-template-columns: auto 1fr auto;
  min-height: 70px;
  padding: 12px 14px;
}

.menu-btn {
  display: none;
}

.session-card {
  align-items: center;
  display: flex;
  gap: 10px;
  justify-self: end;
}

.page-title {
  margin: 18px 0 12px;
}

.page-title h1 {
  font-size: clamp(1.4rem, 4vw, 2rem);
}

.metric-strip {
  display: grid;
  margin: 14px 0;
}

.metric {
  align-items: center;
  display: grid;
  gap: 10px;
  grid-template-columns: auto 1fr auto;
  min-height: 92px;
  padding: 16px;
}

.metric-icon {
  align-items: center;
  background: var(--primary-light);
  border-radius: 10px;
  color: var(--primary);
  display: flex;
  height: 48px;
  justify-content: center;
  width: 48px;
}

.metric strong {
  display: block;
  font-size: 1.8rem;
}

.metric h3 {
  margin: 0;
}

.panel {
  margin-top: 14px;
  padding: 18px;
}

.panel-head {
  align-items: start;
  display: flex;
  gap: 12px;
  justify-content: space-between;
  margin-bottom: 14px;
}

.toolbar {
  align-items: center;
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(0, 1fr) auto;
  margin-bottom: 12px;
}

.search {
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  padding: 0 10px;
}

.search input {
  border: 0;
  box-shadow: none;
}

.result-count,
.chip {
  background: var(--primary-light);
  border-radius: 999px;
  color: var(--primary-dark);
  display: inline-flex;
  font-size: 0.82rem;
  font-weight: 900;
  padding: 7px 10px;
  white-space: nowrap;
}

.workspace {
  display: grid;
  gap: 14px;
}

.scanner-card {
  display: grid;
  gap: 14px;
}

.scanner-box {
  align-items: center;
  background: #081f26;
  border-radius: 12px;
  color: #b8c6c9;
  display: grid;
  min-height: 300px;
  overflow: hidden;
  position: relative;
  text-align: center;
}

.scanner-box video {
  display: none;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.scanner-box.active video {
  display: block;
}

.scanner-overlay {
  border: 4px solid rgba(20, 191, 181, 0.9);
  border-radius: 14px;
  height: min(60vw, 260px);
  left: 50%;
  pointer-events: none;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: min(60vw, 260px);
}

.scanner-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.empty {
  border: 1px dashed #d9d3df;
  border-radius: 10px;
  color: var(--muted);
  display: grid;
  gap: 8px;
  justify-items: center;
  min-height: 170px;
  padding: 24px;
  text-align: center;
}

.student-table {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow-x: auto;
}

.student-row,
.student-header {
  align-items: center;
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(230px, 1.6fr) minmax(140px, 1fr) minmax(160px, 1fr) minmax(90px, 0.6fr) minmax(260px, auto);
  min-width: 920px;
  padding: 10px 14px;
}

.student-header {
  background: var(--primary-soft);
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 900;
  min-height: 42px;
}

.student-row {
  border-top: 1px solid var(--line);
}

.person-line,
.student-main,
.user-row,
.log-row,
.authorized-row,
.lookup-option {
  align-items: center;
  display: flex;
  gap: 10px;
  min-width: 0;
}

.student-main h3,
.user-row h3,
.log-row h3 {
  font-size: 1rem;
  margin: 0 0 4px;
}

.student-main p,
.user-row p,
.log-row p,
.small {
  color: var(--muted);
  font-size: 0.86rem;
  margin: 0;
}

.avatar {
  border-radius: 999px;
  flex: 0 0 auto;
  height: 44px;
  width: 44px;
}

.avatar.lg {
  border-radius: 12px;
  height: 92px;
  width: 92px;
}

.avatar img {
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.code {
  background: var(--primary-soft);
  border-radius: 7px;
  color: var(--primary-dark);
  display: inline-block;
  font-family: Consolas, monospace;
  font-size: 0.78rem;
  padding: 5px 7px;
  word-break: break-word;
}

.user-list,
.log-list,
.authorized-list,
.autocomplete-list {
  display: grid;
  gap: 10px;
}

.user-row,
.log-row,
.authorized-row,
.lookup-option {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  justify-content: space-between;
  padding: 12px;
}

.lookup-wrap {
  position: relative;
}

.autocomplete-list {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow);
  left: 0;
  max-height: 280px;
  overflow: auto;
  padding: 8px;
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  z-index: 30;
}

.lookup-option {
  border-radius: 8px;
  cursor: pointer;
}

.verification-result {
  background: #fff8ec;
  border: 1px solid #f6d49b;
  border-radius: 10px;
  display: grid;
  gap: 10px;
  margin-top: 12px;
  padding: 14px;
}

.verification-grid {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.detail-tile {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}

.detail-tile small {
  color: var(--muted);
  display: block;
  font-size: 0.7rem;
  font-weight: 900;
  text-transform: uppercase;
}

.modal-backdrop {
  align-items: center;
  background: rgba(16, 13, 21, 0.55);
  display: grid;
  inset: 0;
  padding: 18px;
  position: fixed;
  z-index: 100;
}

.modal {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  margin: auto;
  max-height: calc(100vh - 36px);
  max-width: 980px;
  overflow: hidden;
  width: min(100%, 980px);
}

.modal.small {
  max-width: 560px;
}

.modal-head,
.modal-foot {
  align-items: center;
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 12px;
  justify-content: space-between;
  padding: 14px 16px;
}

.modal-foot {
  border-bottom: 0;
  border-top: 1px solid var(--line);
  justify-content: flex-end;
}

.modal-body {
  overflow: auto;
  padding: 16px;
}

.photo-field {
  align-items: center;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 10px;
  display: grid;
  gap: 14px;
  grid-template-columns: auto 1fr;
  margin-bottom: 14px;
  padding: 14px;
}

.authorization-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(280px, 0.85fr) minmax(0, 1fr);
}

.authorized-card {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
  display: grid;
  gap: 10px;
  grid-template-columns: auto 1fr;
  min-height: 66px;
  padding: 10px;
}

.authorized-card.selected {
  background: var(--primary-soft);
  border-color: #d7b1f4;
  box-shadow: 0 0 0 4px rgba(140, 22, 213, 0.08);
}

.person-detail {
  display: grid;
  gap: 10px;
}

.qr-preview {
  display: grid;
  gap: 12px;
  justify-items: center;
  padding: 14px;
}

.qr-preview svg {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  height: 260px;
  padding: 12px;
  width: 260px;
}

.toast-region {
  display: grid;
  gap: 8px;
  position: fixed;
  right: 16px;
  top: 16px;
  width: min(360px, calc(100vw - 32px));
  z-index: 120;
}

.toast {
  background: #fff;
  border-left: 5px solid var(--primary);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 12px;
}

.toast.error {
  border-left-color: var(--danger);
}

.toast.success {
  border-left-color: var(--success);
}

.hide {
  display: none !important;
}

@media (max-width: 860px) {
  .app-frame {
    grid-template-columns: 1fr;
  }

  .sidebar {
    bottom: 0;
    box-shadow: var(--shadow);
    left: 0;
    max-width: 280px;
    position: fixed;
    top: 0;
    transform: translateX(-105%);
    transition: transform 0.18s ease;
    width: 82vw;
    z-index: 80;
  }

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

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

  .content {
    padding: 12px;
  }

  .topbar {
    grid-template-columns: auto 1fr;
  }

  .session-card {
    grid-column: 1 / -1;
    justify-self: start;
  }

  .authorization-grid,
  .verification-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .form-grid,
  .toolbar {
    grid-template-columns: 1fr;
  }

  .panel,
  .login-panel {
    padding: 14px;
  }

  .student-table {
    background: transparent;
    border: 0;
    display: grid;
    gap: 10px;
    overflow: visible;
  }

  .student-header {
    display: none;
  }

  .student-row {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 10px;
    display: grid;
    gap: 10px;
    grid-template-columns: 1fr 1fr;
    min-width: 0;
    padding: 12px;
  }

  .student-main,
  .student-row .code,
  .student-row .actions {
    grid-column: 1 / -1;
  }

  .student-row .actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    justify-content: stretch;
  }

  .student-row .actions .icon-btn {
    width: 100%;
  }

  .modal-backdrop {
    align-items: stretch;
    padding: 0;
  }

  .modal {
    border-radius: 0;
    max-height: 100vh;
    width: 100%;
  }

  .modal.small {
    max-width: none;
  }

  .modal-foot,
  .button-row,
  .scanner-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .primary,
  .secondary,
  .danger {
    width: 100%;
  }

  .photo-field {
    grid-template-columns: auto 1fr;
  }
}

/* Visual parity with the original school dashboard */
:root {
  --primary-hover: #7210b5;
  --border: var(--line);
  --border-light: #efedf3;
  --surface: var(--panel);
  --surface-secondary: var(--soft);
  --background: var(--bg);
  --text-primary: var(--text);
  --text-secondary: var(--muted);
  --text-muted: #9b9aa3;
  --success-light: #e9f8f1;
  --warning-light: #fff6e8;
  --danger-light: #fff0f2;
  --shadow-sm: 0 10px 30px rgba(38, 31, 50, 0.035);
  --shadow-md: 0 22px 60px rgba(38, 31, 50, 0.12);
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 10px;
}

.sr-only {
  border: 0;
  clip: rect(0, 0, 0, 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

.app-frame {
  background: var(--surface);
  grid-template-columns: 250px minmax(0, 1fr);
  overflow: hidden;
  width: 100%;
}

.app-content {
  background: var(--background);
  min-width: 0;
  padding: 0;
}

.sidebar {
  border-right: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 24px 22px;
  z-index: 30;
}

.sidebar-brand {
  align-items: center;
  display: flex;
  gap: 12px;
  min-height: 44px;
}

.sidebar-logo {
  align-items: center;
  background: linear-gradient(135deg, #9b17e8, #7412bf);
  border-radius: 8px;
  color: white;
  display: inline-flex;
  flex: 0 0 42px;
  height: 42px;
  justify-content: center;
  width: 42px;
}

.sidebar-title {
  color: var(--primary);
  font-size: 1.25rem;
  font-weight: 950;
}

.sidebar-nav,
.sidebar-group {
  display: grid;
}

.sidebar-nav {
  gap: 8px;
}

.sidebar-group {
  gap: 6px;
}

.sidebar-link,
.sidebar-subitem,
.mobile-menu-button,
.primary-button,
.secondary-button,
.icon-button,
.text-button {
  align-items: center;
  border: 0;
  border-radius: var(--radius-sm);
  display: inline-flex;
  font-weight: 800;
  gap: 8px;
  justify-content: center;
  min-height: 42px;
  transition: background 180ms ease, border-color 180ms ease, box-shadow 180ms ease, color 180ms ease, transform 180ms ease;
}

.sidebar-link {
  background: transparent;
  color: #56545d;
  font-size: 0.98rem;
  font-weight: 650;
  justify-content: flex-start;
  padding: 0 10px;
  width: 100%;
}

.sidebar-link:hover,
.sidebar-subitem:hover,
.secondary-button:hover,
.text-button:hover {
  background: var(--primary-soft);
  color: var(--primary);
}

.sidebar-link.active {
  background: transparent;
  color: var(--primary);
}

.sidebar-link.active::before {
  display: none;
}

.sidebar-subnav {
  border-left: 1px solid var(--border-light);
  display: grid;
  gap: 4px;
  margin-left: 20px;
  padding: 8px 0 8px 20px;
}

.sidebar-subitem {
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.93rem;
  justify-content: flex-start;
  padding: 0 12px;
  text-align: left;
}

.sidebar-subitem.active {
  background: var(--primary-light);
  box-shadow: -21px 0 0 -19px var(--primary);
  color: var(--primary-dark);
}

.topbar {
  align-items: center;
  background: var(--surface);
  border: 0;
  border-bottom: 1px solid var(--border-light);
  border-radius: 0;
  box-shadow: none;
  display: grid;
  gap: 12px;
  grid-template-columns: auto minmax(0, 1fr);
  margin: 0;
  min-height: 72px;
  padding: 14px 34px;
}

.mobile-menu-button,
.icon-button {
  background: #f5f4f7;
  border: 1px solid transparent;
  border-radius: 999px;
  color: #27242d;
  height: 40px;
  padding: 0;
  width: 40px;
}

.mobile-menu-button {
  display: none;
}

.icon-button:hover,
.mobile-menu-button:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
}

.session-card {
  background: transparent;
  border: 0;
  box-shadow: none;
  gap: 12px;
  justify-self: end;
  min-width: 0;
  padding: 0;
}

.session-name {
  align-items: center;
  color: var(--text-primary);
  display: flex;
  gap: 10px;
  min-width: 0;
}

.session-name > span:last-child {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.session-name strong,
.session-name small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-name small {
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.user-avatar {
  align-items: center;
  background: linear-gradient(135deg, #295f73, #f2c744);
  border-radius: 999px;
  color: white;
  display: inline-flex;
  font-size: 0.78rem;
  font-weight: 900;
  height: 38px;
  justify-content: center;
  width: 38px;
}

.metric-strip,
.scanner-workspace,
.workspace-grid,
.log-panel {
  margin-left: 34px;
  margin-right: 34px;
  max-width: none;
}

.metric-strip {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin-top: 18px;
}

.metric,
.tool-panel,
.login-panel {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  box-shadow: none;
}

.metric {
  align-items: center;
  display: grid;
  gap: 13px;
  grid-template-columns: auto minmax(0, 1fr) auto;
  min-height: 86px;
  padding: 16px;
}

.metric-icon {
  background: var(--primary-light);
  border-radius: 8px;
  color: var(--primary);
}

.metric-copy {
  display: grid;
  align-items: baseline;
  column-gap: 10px;
  grid-template-columns: auto minmax(0, 1fr);
  row-gap: 1px;
  min-width: 0;
}

.metric-copy strong {
  font-size: 1.55rem;
  grid-column: 1;
  grid-row: 1 / span 2;
  line-height: 1;
  padding-top: 1px;
}

.metric-copy span {
  font-size: 1rem;
  font-weight: 900;
  grid-column: 2;
  grid-row: 1;
  line-height: 1.05;
}

.metric-copy small {
  color: var(--text-secondary);
  font-size: 0.78rem;
  grid-column: 2;
  grid-row: 2;
  line-height: 1.2;
}

.metric em {
  background: #f8f6fa;
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: 0.72rem;
  font-style: normal;
  font-weight: 800;
  padding: 5px 8px;
}

.scanner-workspace,
.workspace-grid {
  display: grid;
  gap: 16px;
  padding-bottom: 28px;
}

.scanner-workspace {
  grid-template-columns: minmax(0, 1fr);
  margin-top: 18px;
}

.workspace-grid,
.log-panel {
  margin-top: 18px;
}

.tool-panel {
  min-width: 0;
  padding: 24px;
}

.panel-heading {
  align-items: flex-start;
  display: flex;
  gap: 12px;
  justify-content: space-between;
  margin-bottom: 18px;
}

.panel-heading h2 {
  font-size: 1.2rem;
  font-weight: 850;
}

.panel-actions,
.button-row,
.scanner-actions,
.card-actions,
.user-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.primary-button,
.primary {
  background: linear-gradient(180deg, #a020e9, #7412bf);
  border: 0;
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(116, 18, 191, 0.18);
  color: white;
  min-height: 46px;
  padding: 0 16px;
  text-decoration: none;
}

.primary-button:hover:not(:disabled),
.primary:hover:not(:disabled) {
  background: linear-gradient(180deg, #8d19d6, #6410a5);
}

.secondary-button,
.secondary {
  background: #faf9fb;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  color: #5f5b66;
  min-height: 46px;
  padding: 0 14px;
  text-decoration: none;
}

.secondary-button.compact {
  min-height: 36px;
}

.danger-action,
.icon-button.danger {
  color: var(--danger);
}

.video-frame {
  aspect-ratio: 16 / 4.2;
  background: #141018;
  border-radius: 10px;
  display: grid;
  min-height: 320px;
  overflow: hidden;
  place-items: center;
  position: relative;
}

.video-frame video {
  display: block;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.video-frame:not(.active) video {
  display: none;
}

.video-frame.active .video-placeholder {
  display: none;
}

.video-placeholder {
  align-items: center;
  color: rgba(255, 255, 255, 0.62);
  display: flex;
  inset: 0;
  justify-content: center;
  position: absolute;
}

.qr-guide {
  height: min(68%, 260px);
  left: 50%;
  pointer-events: none;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: min(68%, 260px);
  z-index: 2;
}

.qr-guide span {
  border-color: var(--primary);
  border-style: solid;
  height: 34px;
  position: absolute;
  width: 34px;
}

.qr-guide span:nth-child(1) {
  border-width: 4px 0 0 4px;
  left: 0;
  top: 0;
}

.qr-guide span:nth-child(2) {
  border-width: 4px 4px 0 0;
  right: 0;
  top: 0;
}

.qr-guide span:nth-child(3) {
  border-width: 0 0 4px 4px;
  bottom: 0;
  left: 0;
}

.qr-guide span:nth-child(4) {
  border-width: 0 4px 4px 0;
  bottom: 0;
  right: 0;
}

.scanner-help {
  background: rgba(92, 14, 154, 0.9);
  border-radius: 999px;
  bottom: 16px;
  color: white;
  font-size: 0.82rem;
  font-weight: 800;
  left: 50%;
  margin: 0;
  padding: 8px 12px;
  position: absolute;
  transform: translateX(-50%);
  white-space: nowrap;
  z-index: 3;
}

.status-pill,
.chip,
.result-count {
  align-items: center;
  background: var(--primary-light);
  border-radius: 999px;
  color: var(--primary-dark);
  display: inline-flex;
  font-size: 0.78rem;
  font-weight: 800;
  gap: 6px;
  padding: 7px 10px;
}

.student-list-toolbar {
  align-items: center;
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(0, 1fr) auto;
  margin-bottom: 12px;
}

.list-search {
  align-items: center;
  background: var(--surface-secondary);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  color: var(--text-secondary);
  display: grid;
  gap: 8px;
  grid-template-columns: auto minmax(0, 1fr);
  min-height: 42px;
  padding: 0 12px;
}

.list-search input {
  background: transparent;
  border: 0;
  min-height: 40px;
  padding: 0;
}

.student-table {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  overflow-x: auto;
}

.student-table-header,
.student-card {
  align-items: center;
  display: grid;
  gap: 16px;
  grid-template-columns: 24px minmax(220px, 1.55fr) minmax(150px, 1fr) minmax(150px, 0.9fr) minmax(90px, 0.52fr) minmax(130px, 0.7fr) minmax(130px, 0.76fr) minmax(230px, auto);
  min-width: 1080px;
}

.student-table-header {
  background: var(--primary-soft);
  color: var(--text-secondary);
  font-size: 0.84rem;
  min-height: 44px;
  padding: 0 16px;
}

.student-card {
  border: 0;
  border-bottom: 1px solid var(--border-light);
  border-radius: 0;
  min-height: 64px;
  padding: 10px 16px;
}

.student-card:last-child {
  border-bottom: 0;
}

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

.row-check {
  border: 2px solid #a5a1ac;
  border-radius: 6px;
  height: 20px;
  width: 20px;
}

.student-main,
.person-line {
  align-items: center;
  display: flex;
  gap: 12px;
  min-width: 0;
}

.student-main h3,
.student-main p,
.student-cell,
.student-id-cell,
.user-row h3,
.user-row p {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.student-main h3 {
  font-size: 0.96rem;
}

.student-main p {
  color: var(--text-secondary);
  font-size: 0.82rem;
  margin-bottom: 0;
}

.student-table .avatar {
  border-radius: 999px;
  height: 38px;
  width: 38px;
}

.student-cell {
  color: #2e2b35;
  font-size: 0.92rem;
  min-width: 0;
}

.student-id-cell,
.code {
  background: var(--primary-soft);
  border-radius: var(--radius-sm);
  color: var(--primary-dark);
  display: inline-block;
  font-family: Consolas, monospace;
  font-size: 0.75rem;
  max-width: 100%;
  overflow-wrap: anywhere;
  padding: 4px 6px;
}

.authorized-count-button {
  align-items: center;
  background: #faf9fb;
  border: 1px solid var(--border-light);
  border-radius: 999px;
  color: var(--primary-dark);
  display: inline-flex;
  font-size: 0.8rem;
  font-weight: 900;
  gap: 6px;
  justify-content: center;
  min-height: 34px;
  padding: 0 10px;
  white-space: nowrap;
}

.qr-row-button {
  min-width: 72px;
}

.card-actions,
.user-actions {
  justify-content: flex-end;
}

.avatar {
  border-radius: var(--radius-md);
}

.avatar.lg {
  border-radius: var(--radius-lg);
  height: 110px;
  width: 110px;
}

.avatar img {
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.user-row,
.log-row,
.authorized-row {
  border-color: var(--border-light);
  border-radius: 8px;
}

.activity-icon {
  align-items: center;
  background: var(--success-light);
  border-radius: 999px;
  color: var(--success);
  display: inline-flex;
  height: 30px;
  justify-content: center;
  width: 30px;
}

.autocomplete-list {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  box-shadow: var(--shadow-md);
  display: grid;
  gap: 4px;
  max-height: 270px;
  overflow: auto;
  padding: 6px;
  position: absolute;
  top: calc(100% + 6px);
  width: 100%;
  z-index: 15;
}

.autocomplete-option {
  background: transparent;
  border: 0;
  border-radius: 8px;
  display: grid;
  gap: 10px;
  grid-template-columns: auto minmax(0, 1fr);
  min-height: 54px;
  padding: 8px;
  text-align: left;
}

.autocomplete-option:hover,
.autocomplete-option:focus-visible {
  background: var(--primary-soft);
}

.verification-result {
  align-items: flex-start;
  border: 1px solid var(--border-light);
  border-radius: 10px;
  display: grid;
  gap: 14px;
  grid-template-columns: auto minmax(0, 1fr);
  margin-top: 12px;
  padding: 16px;
}

.verification-result.success {
  background: var(--success-light);
  border-color: rgba(33, 166, 107, 0.24);
}

.verification-result.warning {
  background: var(--warning-light);
  border-color: rgba(229, 155, 38, 0.26);
}

.verification-status-icon {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: 999px;
  color: var(--primary);
  display: inline-flex;
  height: 44px;
  justify-content: center;
  width: 44px;
}

.verification-result.success .verification-status-icon {
  color: var(--success);
}

.verification-details {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 12px 0 0;
}

.verification-details div,
.detail-tile {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 8px;
  padding: 10px;
}

.verification-details dt,
.detail-tile small {
  color: var(--text-secondary);
  font-size: 0.72rem;
  font-weight: 900;
  margin-bottom: 3px;
  text-transform: uppercase;
}

.verification-details dd {
  font-weight: 850;
  margin: 0;
}

.empty {
  background: var(--surface-secondary);
  border-color: var(--border);
  border-radius: 10px;
}

.modal-backdrop {
  align-items: center;
  background: rgba(22, 18, 28, 0.52);
  justify-items: center;
  padding: 18px;
}

.modal {
  border-radius: 12px;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  max-height: calc(100dvh - 36px);
  overflow: hidden;
  width: min(100%, 980px);
}

.modal.small {
  width: min(100%, 560px);
}

.modal-body {
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.modal-head,
.modal-foot {
  border-color: var(--border-light);
}

.photo-field {
  background: #fbfafc;
  border-color: var(--border-light);
  border-radius: 10px;
}

.toast {
  border-radius: 8px;
}

.login-brand,
.brand-lockup {
  align-items: center;
  display: flex;
  gap: 14px;
}

.login-form,
.student-form {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.brand-mark.large {
  height: 58px;
  width: 58px;
}

.compact {
  min-height: 38px;
}

.form-panel,
.list-panel {
  align-content: start;
}

.student-form-modal {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  overflow: hidden;
}

.student-data-modal {
  height: auto;
  max-height: calc(100dvh - 36px);
  width: min(100%, 820px);
}

.authorized-person-modal {
  height: auto;
  max-height: calc(100dvh - 36px);
  width: min(100%, 860px);
}

.user-edit-modal {
  height: auto;
  max-height: calc(100dvh - 36px);
  width: min(100%, 620px);
}

.student-form-modal-header {
  align-items: center;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  gap: 16px;
  justify-content: space-between;
  padding: 18px 22px;
}

.student-form-modal-header h2 {
  font-size: 1.22rem;
}

.student-form-modal .student-form {
  align-content: start;
  gap: 18px;
  margin-top: 0;
  min-height: 0;
  overflow-y: auto;
  padding: 22px;
  -webkit-overflow-scrolling: touch;
}

.student-photo-field {
  align-items: center;
  background: #fbfafc;
  border: 1px solid var(--border-light);
  border-radius: 10px;
  display: grid;
  gap: 12px;
  grid-template-columns: auto minmax(0, 1fr) auto;
  padding: 12px;
}

.student-photo-copy {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.student-photo-copy strong {
  font-size: 0.98rem;
}

.photo-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.student-photo-actions {
  justify-content: flex-end;
}

.student-form-footer {
  align-items: center;
  background: #fbfafc;
  border-top: 1px solid var(--border-light);
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin: 4px -22px -22px;
  padding: 14px 22px;
}

.authorized-manager {
  border: 1px solid var(--border);
  border-radius: 10px;
  display: grid;
  gap: 12px;
  padding: 12px;
}

.authorized-manager-standalone {
  align-content: start;
  background: #fbfafc;
  border: 0;
  border-radius: 0;
  gap: 14px;
  max-height: calc(100dvh - 112px);
  min-height: 0;
  overflow: auto;
  padding: 16px;
}

.authorized-manager-header,
.authorized-admin-row,
.authorized-editor-title {
  align-items: center;
  display: flex;
  gap: 10px;
}

.authorized-manager-header {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  justify-content: space-between;
  padding: 12px;
}

.authorized-manager-header p {
  color: var(--text-secondary);
  font-size: 0.86rem;
  margin-bottom: 4px;
}

.authorized-manager-header h3,
.authorized-editor-title h4 {
  font-size: 1rem;
}

.authorized-admin-list {
  align-content: start;
  display: grid;
  gap: 8px;
}

.authorized-admin-empty {
  align-items: center;
  background: var(--surface-secondary);
  border: 1px dashed var(--border);
  border-radius: 8px;
  color: var(--text-secondary);
  display: flex;
  gap: 10px;
  padding: 12px;
}

.authorized-admin-empty svg {
  color: var(--primary);
}

.authorized-admin-row {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  display: grid;
  gap: 10px;
  grid-template-columns: auto minmax(0, 1fr) auto;
  min-height: 62px;
  padding: 10px 12px;
}

.authorized-admin-row > div:first-of-type {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.authorized-admin-row strong,
.authorized-admin-row span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.authorized-admin-row span,
.authorized-editor-title span {
  color: var(--text-secondary);
  font-size: 0.84rem;
}

.authorized-admin-actions {
  display: flex;
  gap: 6px;
}

.authorized-admin-actions .icon-button {
  height: 36px;
  min-height: 36px;
  width: 36px;
}

.authorized-editor {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  display: grid;
  gap: 12px;
  padding: 12px;
}

.authorized-editor-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.authorized-editor-grid .wide-field,
.form-grid .wide-field {
  grid-column: 1 / -1;
}

.authorized-editor-actions {
  justify-content: flex-end;
  margin-top: 0;
}

.authorization-backdrop {
  background: rgba(22, 18, 28, 0.52);
}

.authorization-modal {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  height: min(86vh, 860px);
  overflow: hidden;
  width: min(100%, 1180px);
}

.modal-header {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

.authorization-header {
  align-items: center;
  border-bottom: 1px solid var(--border-light);
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr) auto;
  padding: 18px 20px;
}

.authorization-header h2 {
  font-size: 1.22rem;
}

.authorization-action-cluster {
  align-items: center;
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(180px, 260px) minmax(190px, auto) auto;
  justify-content: end;
  min-width: 0;
}

.quick-selection {
  align-items: center;
  background: var(--primary-soft);
  border: 1px solid #ead7fa;
  border-radius: 8px;
  display: grid;
  gap: 9px;
  grid-template-columns: auto minmax(0, 1fr);
  min-height: 48px;
  padding: 6px 8px;
}

.quick-empty-icon {
  align-items: center;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  color: var(--primary);
  display: inline-flex;
  height: 38px;
  justify-content: center;
  width: 38px;
}

.quick-selection span:not(.quick-empty-icon),
.authorization-confirm-block {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.quick-selection small {
  color: var(--text-secondary);
  font-size: 0.7rem;
  font-weight: 900;
  text-transform: uppercase;
}

.quick-selection strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.quick-confirm {
  min-width: 190px;
}

.authorization-action-reason {
  color: var(--text-secondary);
  font-size: 0.72rem;
  font-weight: 750;
  line-height: 1.25;
}

.authorization-modal-body {
  background: #f8f7fa;
  display: grid;
  grid-template-columns: minmax(330px, 0.82fr) minmax(420px, 1.18fr);
  min-height: 0;
}

.authorization-modal-list,
.authorization-modal-detail {
  min-width: 0;
  padding: 16px;
}

.authorization-modal-list {
  background: var(--surface);
  border-right: 1px solid var(--border-light);
  display: grid;
  gap: 14px;
  grid-template-rows: auto minmax(0, 1fr);
  overflow: auto;
}

.authorization-modal-detail {
  display: grid;
  gap: 12px;
  grid-template-rows: minmax(0, 1fr) auto;
  overflow: hidden;
}

.authorization-modal-detail .person-details-panel {
  border: 1px solid var(--border-light);
  box-shadow: none;
  min-height: 0;
  overflow: auto;
}

.pickup-notes {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  display: grid;
  gap: 8px;
  padding: 12px;
}

.pickup-notes textarea {
  min-height: 86px;
  resize: vertical;
}

.student-summary-card {
  align-items: center;
  background: var(--primary-soft);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  display: grid;
  gap: 10px;
  grid-template-columns: auto minmax(0, 1fr) auto;
  padding: 8px 10px;
}

.student-summary-main {
  min-width: 0;
}

.student-summary-main h3,
.student-summary-main p {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.student-summary-main p {
  color: var(--text-secondary);
  font-size: 0.84rem;
  margin-bottom: 0;
}

.count-badge {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: 999px;
  color: var(--primary-dark);
  font-size: 0.72rem;
  font-weight: 900;
  padding: 5px 8px;
  white-space: nowrap;
}

.authorized-list {
  align-content: start;
  display: grid;
  gap: 6px;
  grid-auto-rows: minmax(68px, max-content);
}

.authorized-person-card {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: inherit;
  display: grid;
  gap: 10px;
  grid-template-columns: auto minmax(0, 1fr) auto;
  min-height: 68px;
  padding: 10px 12px;
  text-align: left;
}

.authorized-person-card:hover,
.authorized-person-card.selected {
  background: var(--primary-soft);
  border-color: #d7b1f4;
  box-shadow: 0 0 0 4px rgba(140, 22, 213, 0.08);
}

.authorized-person-copy {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.authorized-person-copy strong {
  font-size: 1rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.authorized-person-meta {
  align-items: center;
  color: var(--text-secondary);
  display: flex;
  flex-wrap: wrap;
  gap: 4px 9px;
  min-width: 0;
}

.authorized-person-meta small,
table small,
.person-title p {
  color: var(--text-secondary);
  font-size: 0.84rem;
}

.authorized-person-meta small {
  align-items: center;
  display: inline-flex;
  gap: 4px;
  line-height: 1.2;
}

.details-link {
  align-items: center;
  background: var(--surface-secondary);
  border-radius: 8px;
  color: var(--primary-dark);
  display: inline-flex;
  height: 38px;
  justify-content: center;
  width: 38px;
}

.person-details-panel {
  display: grid;
  gap: 14px;
}

.person-hero {
  align-items: flex-start;
  display: flex;
  justify-content: space-between;
}

.detail-list {
  display: grid;
  gap: 10px;
  margin: 0;
}

.detail-list div {
  background: var(--surface-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 10px;
}

.detail-list dt {
  align-items: center;
  color: var(--text-secondary);
  display: flex;
  font-size: 0.76rem;
  font-weight: 900;
  gap: 6px;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.detail-list dd {
  margin: 0;
}

.status-pill.live {
  background: var(--primary-light);
  color: var(--primary-dark);
}

.table-wrap {
  overflow-x: auto;
}

table {
  border-collapse: collapse;
  min-width: 820px;
  width: 100%;
}

th,
td {
  border-bottom: 1px solid var(--border-light);
  padding: 12px 10px;
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--text-muted);
  font-size: 0.76rem;
  text-transform: uppercase;
}

table small {
  display: block;
}

@media (max-width: 920px) {
  .app-frame {
    grid-template-columns: 1fr;
    overflow: visible;
  }

  .app-content {
    padding-bottom: 88px;
  }

  .sidebar {
    bottom: auto;
    box-shadow: var(--shadow-md);
    left: 0;
    max-width: 300px;
    position: fixed;
    top: 0;
    transform: translateX(-106%);
    transition: transform 220ms ease;
    width: 82vw;
  }

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

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

  .topbar {
    grid-template-columns: auto auto;
    justify-content: space-between;
    min-height: 72px;
    padding: 12px 16px;
  }

  .session-card {
    grid-column: auto;
    gap: 8px;
    justify-content: flex-end;
    justify-self: end;
  }

  .session-name > span:last-child {
    display: none;
  }

  .metric-strip,
  .scanner-workspace,
  .workspace-grid,
  .log-panel {
    margin-left: 12px;
    margin-right: 12px;
  }

  .metric-strip {
    margin-top: 12px;
  }

  .tool-panel {
    padding: 16px;
  }

  .video-frame {
    aspect-ratio: 4 / 3;
    min-height: 0;
  }

  .verification-details {
    grid-template-columns: 1fr 1fr;
  }

  .authorization-modal {
    height: calc(100dvh - 18px);
    width: calc(100vw - 18px);
  }

  .authorization-header {
    align-items: stretch;
    grid-template-columns: 1fr;
    padding: 14px;
  }

  .authorization-action-cluster {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .authorization-confirm-block {
    grid-column: 1 / -1;
    order: 3;
  }

  .quick-selection {
    min-width: 0;
  }

  .authorization-modal-body {
    grid-template-columns: 1fr;
    overflow: auto;
  }

  .authorization-modal-list {
    border-right: 0;
    overflow: visible;
  }

  .authorization-modal-detail {
    overflow: visible;
  }

  .student-data-modal,
  .authorized-person-modal,
  .user-edit-modal {
    max-height: calc(100dvh - 18px);
    width: calc(100vw - 18px);
  }

  .authorized-manager-standalone {
    max-height: calc(100dvh - 88px);
  }
}

@media (max-width: 720px) {
  .metric {
    grid-template-columns: auto minmax(0, 1fr);
    min-height: 82px;
  }

  .metric em {
    grid-column: 2;
    justify-self: start;
  }

  .metric-copy small {
    display: none;
  }

  .panel-heading,
  .student-list-toolbar {
    align-items: stretch;
    grid-template-columns: 1fr;
  }

  .panel-heading {
    display: grid;
  }

  .panel-actions,
  .button-row,
  .scanner-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .primary-button,
  .secondary-button,
  .primary,
  .secondary {
    width: 100%;
  }

  .student-table {
    background: transparent;
    border: 0;
    display: grid;
    gap: 10px;
    overflow: visible;
  }

  .student-table-header {
    display: none;
  }

  .student-card {
    background: var(--surface);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    display: grid;
    gap: 10px;
    grid-template-columns: auto minmax(0, 1fr);
    min-height: 0;
    min-width: 0;
    padding: 12px;
  }

  .student-card .row-check {
    display: none;
  }

  .student-main,
  .student-info,
  .student-cell,
  .student-id-cell,
  .authorized-count-button,
  .card-actions {
    grid-column: 1 / -1;
  }

  .card-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .card-actions .secondary-button,
  .card-actions .icon-button {
    width: 100%;
  }

  .user-row {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .user-actions {
    display: grid;
    grid-column: 1 / -1;
    grid-template-columns: 1fr 1fr;
  }

  .modal-backdrop {
    align-items: stretch;
    padding: 0;
  }

  .modal {
    border-radius: 0;
    max-height: 100dvh;
    width: 100%;
  }

  .modal-foot {
    display: grid;
    grid-template-columns: 1fr;
  }

  .form-grid,
  .authorized-editor-grid,
  .authorization-grid,
  .verification-grid,
  .verification-details {
    grid-template-columns: 1fr;
  }

  .student-photo-field {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .student-photo-actions {
    grid-column: 1 / -1;
    justify-content: stretch;
  }

  .student-photo-actions .secondary-button,
  .photo-actions .secondary-button {
    flex: 1 1 150px;
  }

  .authorized-manager-header,
  .authorized-admin-row {
    align-items: start;
    grid-template-columns: auto minmax(0, 1fr);
  }

  .authorized-manager-header .primary-button,
  .authorized-admin-actions {
    grid-column: 1 / -1;
    width: 100%;
  }

  .authorized-admin-actions {
    justify-content: flex-end;
  }

  .student-summary-card {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .student-summary-card .count-badge {
    grid-column: 2;
    justify-self: start;
  }

  .authorized-person-card {
    grid-template-columns: auto minmax(0, 1fr) auto;
  }

  .quick-confirm {
    width: 100%;
  }
}

.users-grid {
  align-items: start;
  grid-template-columns: minmax(300px, 0.52fr) minmax(420px, 1fr);
}

.student-info {
  align-items: center;
  display: flex;
  gap: 12px;
  min-width: 0;
}

.student-info h3,
.student-info p,
.student-cell,
.student-id-cell {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.student-info h3 {
  font-size: 0.96rem;
}

.student-info p {
  color: var(--text-secondary);
  font-size: 0.82rem;
  margin: 0;
}

.avatar.sm {
  height: 38px;
  width: 38px;
}

.avatar.md {
  height: 64px;
  width: 64px;
}

.qr-preview-modal {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  overflow: hidden;
  width: min(100%, 520px);
}

.qr-preview-body {
  display: grid;
  gap: 16px;
  padding: 18px;
}

.qr-ticket {
  border: 1px solid var(--border-light);
  border-radius: 10px;
  display: grid;
  gap: 12px;
  justify-items: center;
  padding: 18px;
  text-align: center;
}

.qr-ticket h3 {
  font-size: 1.12rem;
  margin: 0;
}

.qr-ticket p {
  color: var(--text-secondary);
  margin: 0;
}

.qr-preview-image {
  align-items: center;
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 10px;
  display: flex;
  height: 280px;
  justify-content: center;
  width: 280px;
}

.qr-preview-image svg {
  height: 252px;
  width: 252px;
}

.qr-preview-actions {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr 1fr;
}

.user-row {
  align-items: center;
  border: 1px solid var(--border-light);
  border-radius: 10px;
  display: grid;
  gap: 12px;
  grid-template-columns: auto minmax(0, 1fr) auto;
  padding: 12px;
}

.user-row > div:not(.user-actions) {
  min-width: 0;
}

.user-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.user-actions .secondary-button {
  min-height: 38px;
}

.user-edit-heading {
  align-items: center;
  background: var(--primary-soft);
  border: 1px solid #ead7fa;
  border-radius: 10px;
  display: flex;
  gap: 12px;
  padding: 12px;
}

.user-edit-heading div {
  display: grid;
  gap: 2px;
}

.user-edit-heading span:not(.avatar) {
  color: var(--text-secondary);
  font-size: 0.84rem;
}

.verify-log-list {
  display: grid;
  gap: 10px;
}

.verify-log-card {
  align-items: center;
  border: 1px solid var(--border-light);
  border-radius: 10px;
  display: grid;
  gap: 12px;
  grid-template-columns: auto minmax(0, 1fr) auto;
  padding: 12px;
}

.verify-log-card strong,
.verify-log-card p {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.verify-log-card p,
.verify-log-card small {
  color: var(--text-secondary);
  margin: 2px 0 0;
}

@media (min-width: 761px) {
  .student-table {
    overflow: hidden;
  }

  .student-table-header,
  .student-card {
    gap: 12px;
    grid-template-columns:
      22px
      minmax(160px, 1.35fr)
      minmax(70px, 0.58fr)
      minmax(140px, 0.9fr)
      minmax(58px, 0.42fr)
      minmax(118px, 0.72fr)
      minmax(72px, 0.48fr)
      minmax(132px, 0.7fr);
    min-width: 0;
  }

  .student-card {
    min-height: 58px;
  }

  .student-table .avatar,
  .student-table .avatar.sm {
    height: 34px;
    width: 34px;
  }

  .card-actions {
    align-items: center;
    display: flex;
    flex-wrap: nowrap;
    gap: 6px;
    justify-content: flex-end;
    min-width: 0;
  }

  .card-actions .qr-row-button {
    min-width: 62px;
  }

  .card-actions .icon-button {
    height: 38px;
    width: 38px;
  }

  .authorized-count-button {
    min-width: 0;
    padding: 0 8px;
  }
}

@media (max-width: 760px) {
  .users-grid {
    grid-template-columns: 1fr;
  }

  .qr-preview-modal {
    border-radius: 0;
    min-height: 100dvh;
    width: 100%;
  }

  .qr-preview-actions {
    grid-template-columns: 1fr;
  }

  .student-card .student-info {
    grid-column: 1 / -1;
  }

  .user-row {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .user-actions {
    display: grid;
    grid-column: 1 / -1;
    grid-template-columns: 1fr 1fr;
  }

  .user-actions .secondary-button {
    width: 100%;
  }

  .verify-log-card {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .verify-log-card small {
    grid-column: 2;
  }
}

/* Final layout polish: keep the desktop header aligned and soften the QR submenu. */
.topbar {
  align-items: center;
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.session-card {
  align-items: center;
  display: flex;
  margin-left: auto;
}

.profile-button {
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: 10px;
  color: inherit;
  display: inline-flex;
  min-height: 44px;
  padding: 4px 8px;
  text-align: left;
}

.profile-button:hover {
  background: var(--primary-soft);
}

.session-name {
  align-items: center;
}

.teacher-line {
  align-items: center;
  display: inline-flex;
  gap: 8px;
  min-width: 0;
}

.teacher-line .avatar {
  height: 28px;
  width: 28px;
}

.student-photo-copy span {
  color: var(--text-secondary);
  font-size: 0.84rem;
}

.sidebar-subnav {
  overflow: hidden;
  transform-origin: top left;
}

.sidebar-subnav.is-opening {
  animation: sidebarSubnavEnter 220ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.sidebar-subnav.is-opening .sidebar-subitem {
  animation: sidebarSubitemEnter 240ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.sidebar-subnav.is-opening .sidebar-subitem:nth-child(2) {
  animation-delay: 35ms;
}

.sidebar-subnav.is-opening .sidebar-subitem:nth-child(3) {
  animation-delay: 70ms;
}

.sidebar-subitem.active {
  transform: translateX(0);
}

@keyframes sidebarSubnavEnter {
  from {
    max-height: 0;
    opacity: 0;
    transform: translateY(-8px) scaleY(0.96);
  }
  to {
    max-height: 190px;
    opacity: 1;
    transform: translateY(0) scaleY(1);
  }
}

@keyframes sidebarSubitemEnter {
  from {
    opacity: 0;
    transform: translateX(-8px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.scanner-workspace,
.scanner-panel,
.video-frame {
  max-width: 100%;
  min-width: 0;
}

.scanner-panel {
  overflow: hidden;
}

.video-frame {
  width: 100%;
}

@media (max-width: 920px) {
  .topbar {
    justify-content: space-between;
  }

  .session-card {
    margin-left: auto;
  }
}

@media print {
  .sidebar,
  .topbar,
  .metric-strip,
  .panel-head,
  .toolbar,
  .actions,
  .modal-foot,
  .toast-region {
    display: none !important;
  }

  body {
    background: #fff;
  }

  .content,
  .panel {
    padding: 0;
  }
}