/* ITMO Deadlines — Lab Queue System
   Matches App.axaml & MainView.axaml design system exactly.
   High-performance, minimal, accessible, dark/light theme support. */

:root {
  --app-bg: #FAFAFA;
  --card-bg: #FFFFFF;
  --card-hover: #F8F9FA;
  --card-border: #E8E8EC;
  --card-border-hover: #D1D1D6;
  --app-fg: #18181B;
  --subtle-text: #71717A;
  --subtle-dim: #A1A1AA;
  --tag-bg: #F4F4F5;
  --tag-bg-hover: #E4E4E7;
  --accent: #2563EB;
  --accent-hover: #1D4ED8;
  --accent-subtle: rgba(37, 99, 235, 0.08);
  --accent-border: rgba(37, 99, 235, 0.25);
  --error: #DC2626;
  --error-bg: rgba(220, 38, 38, 0.08);
  --success: #10B981;
  --success-bg: rgba(16, 185, 129, 0.08);
  --warning: #F59E0B;
  --warning-bg: rgba(245, 158, 11, 0.08);
  
  --radius-lg: 12px;
  --radius-md: 8px;
  --radius-sm: 6px;
  --radius-pill: 20px;
  
  --font-display: "Unbounded", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-sans: "Jost", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --app-bg: #0D0E11;
    --card-bg: #16171B;
    --card-hover: #1C1E24;
    --card-border: #26282E;
    --card-border-hover: #363942;
    --app-fg: #F4F4F5;
    --subtle-text: #9496A1;
    --subtle-dim: #646672;
    --tag-bg: #202227;
    --tag-bg-hover: #2B2E35;
    --accent: #3B82F6;
    --accent-hover: #60A5FA;
    --accent-subtle: rgba(59, 130, 246, 0.12);
    --accent-border: rgba(59, 130, 246, 0.3);
    --error: #EF4444;
    --error-bg: rgba(239, 68, 68, 0.12);
    --success: #10B981;
    --success-bg: rgba(16, 185, 129, 0.12);
    --warning: #F59E0B;
    --warning-bg: rgba(245, 158, 11, 0.12);
  }
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--app-bg);
  color: var(--app-fg);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.tabular-nums {
  font-variant-numeric: tabular-nums;
}

.page-wrapper {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 16px 60px 16px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.queue-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0 14px 0;
  border-bottom: 1px solid var(--card-border);
  gap: 12px;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--app-fg);
}

.brand-logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  flex-shrink: 0;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--app-fg);
}

.brand-tag {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-left: 6px;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Ghost Icon Button (App.axaml: Button.GhostIcon) */
.btn-ghost-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  background: transparent;
  color: var(--subtle-text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-ghost-icon:hover {
  background: var(--tag-bg);
  color: var(--app-fg);
}

.btn-ghost-icon:focus-visible {
  outline: none;
  border-color: var(--accent);
}

/* Status Pill */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--subtle-text);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--subtle-dim);
}

.status-dot.online {
  background-color: var(--success);
}

/* Clean Card (App.axaml: Border.CleanCard) */
.clean-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 16px 18px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.clean-card:hover {
  border-color: var(--card-border-hover);
}

/* Queue Hero Card */
.queue-hero-card {
  margin-top: 18px;
}

.queue-hero-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.subject-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  background: var(--tag-bg);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.queue-title {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--app-fg);
  line-height: 1.25;
}

.queue-meta-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 6px;
  font-size: 0.82rem;
  color: var(--subtle-text);
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--tag-bg);
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  color: var(--subtle-text);
}

/* Action Toolbar */
.action-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  flex-wrap: wrap;
}

/* Primary Button (App.axaml: Button.CleanPrimaryBtn) */
.btn-primary {
  font-family: var(--font-display);
  background: var(--accent);
  color: #FFFFFF;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  padding: 8px 14px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background-color 0.15s ease, opacity 0.15s ease;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-primary:focus-visible {
  outline: none;
  border-color: var(--app-fg);
}

/* Ghost / Secondary Button (App.axaml: Button.CleanGhostBtn) */
.btn-secondary {
  font-family: var(--font-sans);
  background: var(--tag-bg);
  color: var(--app-fg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.btn-secondary:hover {
  background: var(--tag-bg-hover);
  border-color: var(--card-border-hover);
}

.btn-secondary:focus-visible {
  outline: none;
  border-color: var(--accent);
}

/* Danger Button */
.btn-danger {
  font-family: var(--font-sans);
  background: var(--error-bg);
  color: var(--error);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  padding: 7px 10px;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.btn-danger:hover {
  background: var(--error);
  color: #FFFFFF;
}

.btn-danger:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--error);
}

.btn-success {
  font-family: var(--font-sans);
  background: var(--success);
  color: #FFFFFF;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  padding: 7px 11px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: opacity 0.15s ease;
}

.btn-success:hover {
  opacity: 0.9;
}

.btn-sm {
  padding: 5px 9px;
  font-size: 0.76rem;
  border-radius: var(--radius-sm);
}

/* My Spot Banner (Compact & Clean) */
.my-spot-card {
  margin-top: 14px;
  background: var(--accent-subtle);
  border: 1px solid var(--accent-border);
  border-radius: 10px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.my-spot-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.my-spot-number {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--card-bg);
  border: 1px solid var(--accent-border);
  width: 44px;
  height: 44px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}

.my-spot-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--app-fg);
}

.my-spot-subtitle {
  font-size: 0.8rem;
  color: var(--subtle-text);
}

.my-spot-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Desks Container */
.desks-section {
  margin-top: 18px;
}

.section-caption {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--subtle-text);
  margin-bottom: 8px;
}

.desks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
}

.desk-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.desk-item.occupied {
  border-color: rgba(16, 185, 129, 0.35);
  background: var(--card-bg);
}

.desk-item-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.desk-num {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--subtle-text);
  text-transform: uppercase;
}

.desk-badge {
  font-size: 0.7rem;
  font-weight: 500;
  padding: 2px 6px;
  border-radius: 4px;
}

.desk-badge.free {
  background: var(--tag-bg);
  color: var(--subtle-text);
}

.desk-badge.busy {
  background: var(--success-bg);
  color: var(--success);
}

.desk-student {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--app-fg);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.desk-lab {
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 500;
}

.desk-time {
  font-size: 0.75rem;
  color: var(--subtle-text);
  font-variant-numeric: tabular-nums;
}

/* Segmented Tabs (App.axaml: SegmentedContainer & SegmentTab) */
.segmented-container {
  background: var(--tag-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 3px;
  display: flex;
  gap: 2px;
  margin-top: 20px;
  margin-bottom: 12px;
  overflow-x: auto;
}

.segment-tab {
  flex: 1;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--subtle-text);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 6px 10px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  white-space: nowrap;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.segment-tab:hover {
  color: var(--app-fg);
}

.segment-tab.active {
  background: var(--card-bg);
  color: var(--app-fg);
  font-weight: 600;
  border-color: var(--card-border);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.segment-badge {
  background: var(--tag-bg);
  color: var(--subtle-text);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 10px;
  font-variant-numeric: tabular-nums;
}

.segment-tab.active .segment-badge {
  background: var(--tag-bg-hover);
  color: var(--app-fg);
}

/* Entries List */
.entries-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.queue-entry-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
  transition: border-color 0.15s ease;
}

.queue-entry-card:hover {
  border-color: var(--card-border-hover);
}

.queue-entry-card.is-me {
  border-color: var(--accent);
  background: var(--card-bg);
}

.queue-entry-card.in-progress {
  border-color: rgba(16, 185, 129, 0.4);
}

html.dnd-scroll-locked,
body.dnd-scroll-locked {
  overflow: hidden !important;
  touch-action: none !important;
  overscroll-behavior: none !important;
  user-select: none !important;
  -webkit-user-select: none !important;
}

/* Drag & Drop Reordering (Moderator / Admin) */
.queue-entry-card.dnd-draggable {
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  touch-action: pan-y;
  cursor: grab;
  transition: transform 0.22s cubic-bezier(0.2, 0, 0, 1), box-shadow 0.2s ease, border-color 0.2s ease;
}

.queue-entry-card.dnd-lifting {
  transform: scale(0.985);
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.queue-entry-card.dnd-active {
  z-index: 9999 !important;
  cursor: grabbing !important;
  border-color: var(--accent) !important;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.28), 0 4px 14px rgba(37, 99, 235, 0.3) !important;
  transform: scale(1.025) !important;
  opacity: 0.98;
  pointer-events: none;
  touch-action: none !important;
  transition: none !important;
}

.queue-entry-card.dnd-shift-up {
  transform: translateY(calc(-100% - 6px)) !important;
}

.queue-entry-card.dnd-shift-down {
  transform: translateY(calc(100% + 6px)) !important;
}

.queue-entry-placeholder {
  border: 2px dashed rgba(37, 99, 235, 0.35);
  border-radius: 10px;
  background: rgba(37, 99, 235, 0.05);
  box-sizing: border-box;
  margin-bottom: 6px;
  transition: height 0.2s cubic-bezier(0.2, 0, 0, 1);
}

.entry-main-col {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex: 1;
}

.entry-num-box {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--tag-bg);
  color: var(--subtle-text);
  font-size: 0.78rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}

.queue-entry-card.is-me .entry-num-box {
  background: var(--accent);
  color: #FFFFFF;
}

.entry-text-box {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.entry-top-line {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.entry-name {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--app-fg);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.entry-lab-pill {
  font-size: 0.75rem;
  color: var(--accent);
  background: var(--tag-bg);
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 500;
}

.entry-bottom-line {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  color: var(--subtle-text);
  flex-wrap: wrap;
}

.entry-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

/* Empty State */
.empty-state-box {
  text-align: center;
  padding: 40px 16px;
  color: var(--subtle-text);
}

.empty-state-icon {
  font-size: 1.8rem;
  margin-bottom: 8px;
  opacity: 0.7;
}

.empty-state-title {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--app-fg);
  margin-bottom: 4px;
}

.empty-state-desc {
  font-size: 0.82rem;
  color: var(--subtle-text);
  margin-bottom: 14px;
}

/* Called Modal Overlay (Premium, focused) */
.called-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 1500;
  animation: fadeIn 0.2s ease;
}

.called-modal-card {
  background: var(--card-bg);
  border: 2px solid var(--accent);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 420px;
  padding: 28px 24px;
  text-align: center;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
  animation: scaleIn 0.2s ease;
}

.called-bell-icon {
  font-size: 2.6rem;
  margin-bottom: 12px;
  animation: bellRing 1.5s infinite ease-in-out;
}

.called-title {
  font-family: var(--font-header);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--app-fg);
  margin-bottom: 8px;
}

.called-desk-badge {
  display: inline-block;
  background: var(--accent);
  color: #FFFFFF;
  font-family: var(--font-header);
  font-size: 1.15rem;
  font-weight: 700;
  padding: 6px 20px;
  border-radius: 9999px;
  margin: 10px 0 14px 0;
}

.called-desc {
  font-size: 0.9rem;
  color: var(--subtle-text);
  margin-bottom: 22px;
}

.called-action-btn {
  width: 100%;
  padding: 12px 20px;
  font-size: 1rem;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 500;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
}

.modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 440px;
  padding: 20px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
}

.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--app-fg);
}

.modal-close-icon {
  background: transparent;
  border: none;
  color: var(--subtle-text);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  line-height: 1;
}

.modal-close-icon:hover {
  color: var(--app-fg);
}

/* Form Inputs (App.axaml: TextBox.CleanInput) */
.form-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
}

.field-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--subtle-text);
}

.clean-input {
  font-family: var(--font-sans);
  background: var(--app-bg);
  border: 1px solid var(--card-border);
  color: var(--app-fg);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  font-size: 0.88rem;
  min-height: 38px;
  width: 100%;
  transition: border-color 0.15s ease;
}

.clean-input:focus {
  outline: none;
  border-color: var(--accent);
}

.clean-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--subtle-text);
  cursor: pointer;
}

.clean-checkbox input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

/* QR Code Display */
.qr-render-box {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  justify-content: center;
  margin: 12px 0;
  border: 1px solid var(--card-border);
}

.copy-row {
  display: flex;
  gap: 6px;
  background: var(--tag-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 6px 10px;
  align-items: center;
}

.copy-text {
  font-size: 0.8rem;
  color: var(--subtle-text);
  word-break: break-all;
  flex: 1;
}

/* Toast Shelf (Modern, stacked, rich feedback) */
.toast-shelf {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 2000;
  pointer-events: none;
  max-width: 380px;
  width: calc(100% - 48px);
}

.toast-item {
  background: var(--card-bg);
  color: var(--app-fg);
  border: 1px solid var(--card-border);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.16);
  opacity: 0;
  transform: translateY(12px) scale(0.96);
  transition: opacity 0.2s cubic-bezier(0.16, 1, 0.3, 1), transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

.toast-item.show {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.toast-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.toast-item.success .toast-icon { color: var(--success); }
.toast-item.error .toast-icon { color: var(--error); }
.toast-item.info .toast-icon { color: var(--accent); }

/* ==========================================================================
   Projector View (Clean, unboxed, auditorium-grade legibility)
   ========================================================================== */
.projector-overlay {
  position: fixed;
  inset: 0;
  z-index: 3000;
  background: #090A0D;
  color: #FAFAFA;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 28px 40px;
}

.proj-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 16px;
  margin-bottom: 24px;
}

.proj-header-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.proj-subject-tag {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #38BDF8;
}

.proj-title {
  font-family: var(--font-header);
  font-size: 1.85rem;
  font-weight: 700;
  color: #FFFFFF;
  margin: 0;
  line-height: 1.2;
  text-wrap: balance;
}

.proj-meta-line {
  font-size: 0.95rem;
  color: #94A3B8;
}

.proj-actions {
  display: flex;
  gap: 8px;
}

/* 2-column stage: wide main content (desks + queue) + clean QR sidebar */
.proj-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 36px;
  flex: 1;
  min-height: 0;
}

.proj-main {
  display: flex;
  flex-direction: column;
  gap: 28px;
  overflow-y: auto;
  min-height: 0;
  padding-right: 12px;
}

/* Sections: NO heavy nested card borders around sections */
.proj-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.proj-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.proj-section-title {
  font-family: var(--font-header);
  font-size: 1.15rem;
  font-weight: 600;
  color: #F1F5F9;
  margin: 0;
}

.proj-badge {
  font-size: 0.8rem;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.06);
  color: #94A3B8;
  padding: 3px 10px;
  border-radius: 9999px;
  font-variant-numeric: tabular-nums;
}

/* Active Review Desks: clean modern cards */
.proj-desks-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.proj-desk-tile {
  background: #13151D;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.proj-desk-tile.is-occupied {
  background: #141A26;
  border-color: rgba(56, 189, 248, 0.35);
}

.proj-desk-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.proj-desk-tag {
  font-family: var(--font-header);
  font-size: 0.85rem;
  font-weight: 700;
  color: #38BDF8;
}

.proj-desk-state-pill {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 6px;
}

.proj-desk-state-pill.busy {
  background: rgba(56, 189, 248, 0.2);
  color: #38BDF8;
}

.proj-desk-state-pill.free {
  background: rgba(148, 163, 184, 0.12);
  color: #94A3B8;
}

.proj-desk-student-name {
  font-size: 1.15rem;
  font-weight: 600;
  color: #FFFFFF;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.proj-desk-lab-info {
  font-size: 0.88rem;
  color: #94A3B8;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.proj-desk-timer {
  margin-top: 6px;
  font-size: 1rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: #38BDF8;
}

.proj-desk-timer.overdue {
  color: #F59E0B;
}

.proj-desk-empty-hint {
  color: #64748B;
  font-size: 0.88rem;
  padding: 8px 0;
}

/* Waiting Queue: Flat, borderless, semantic list */
.proj-queue-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.proj-queue-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 14px;
  border-radius: 8px;
  background: transparent;
  transition: background 0.15s ease;
}

.proj-queue-item:nth-child(odd) {
  background: rgba(255, 255, 255, 0.02);
}

.proj-queue-item.is-next {
  background: rgba(56, 189, 248, 0.08);
  border-left: 3px solid #38BDF8;
  padding-left: 11px;
}

.proj-queue-rank {
  font-family: var(--font-header);
  font-size: 1.15rem;
  font-weight: 700;
  color: #38BDF8;
  min-width: 32px;
  text-align: center;
}

.proj-queue-info {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex: 1;
  min-width: 0;
}

.proj-queue-name {
  font-size: 1.05rem;
  font-weight: 600;
  color: #FFFFFF;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.proj-queue-lab {
  font-size: 0.88rem;
  color: #94A3B8;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.proj-next-pill {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: rgba(56, 189, 248, 0.2);
  color: #38BDF8;
  padding: 3px 8px;
  border-radius: 6px;
}

.proj-queue-empty {
  color: #64748B;
  font-size: 0.95rem;
  padding: 18px 0;
  text-align: center;
}

/* Sidebar: Crisp QR Code Card */
.proj-sidebar {
  display: flex;
  flex-direction: column;
}

.proj-qr-container {
  background: #12141C;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 16px;
  padding: 24px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.proj-qr-title {
  font-family: var(--font-header);
  font-size: 1.2rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 20px;
}

.proj-qr-frame {
  background: #FFFFFF;
  padding: 14px;
  border-radius: 14px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
  margin-bottom: 18px;
}

.proj-qr-frame canvas,
.proj-qr-frame img {
  display: block;
}

.proj-qr-url {
  font-family: var(--font-header);
  font-size: 0.9rem;
  font-weight: 600;
  color: #38BDF8;
  word-break: break-all;
  margin-bottom: 6px;
}

.proj-qr-hint {
  font-size: 0.82rem;
  color: #94A3B8;
  max-width: 240px;
  margin: 0;
  line-height: 1.4;
}

/* Animations */
@keyframes bellRing {
  0%, 100% { transform: rotate(0deg); }
  20%, 60% { transform: rotate(14deg); }
  40%, 80% { transform: rotate(-14deg); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

/* Overdue timer styling */
.desk-time.overdue {
  color: var(--warning);
  font-weight: 600;
}

.btn-icon-only {
  padding: 7px 10px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* Responsive */
@media (max-width: 900px) {
  .projector-overlay {
    padding: 16px 20px;
  }
  .proj-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    overflow-y: auto;
  }
  .proj-sidebar {
    order: -1;
  }
  .proj-qr-container {
    max-width: 320px;
    margin: 0 auto;
    padding: 16px;
  }
}

@media (max-width: 600px) {
  .queue-title {
    font-size: 1.25rem;
  }
  .queue-entry-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .entry-controls {
    width: 100%;
    justify-content: flex-end;
    border-top: 1px solid var(--card-border);
    padding-top: 6px;
  }
}

/* Two-Step Wizard */
.wizard-stepper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--card-border);
}

.wizard-step {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--subtle-text);
  transition: color 0.18s ease;
}

.wizard-step.active {
  color: var(--accent);
}

.wizard-step.completed {
  color: #10B981;
}

.wizard-step .step-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  background: var(--tag-bg);
  color: var(--subtle-text);
  transition: background 0.18s ease, color 0.18s ease;
}

.wizard-step.active .step-num {
  background: var(--accent);
  color: #FFFFFF;
}

.wizard-step.completed .step-num {
  background: rgba(16, 185, 129, 0.15);
  color: #10B981;
}

.wizard-step-divider {
  width: 36px;
  height: 2px;
  background: var(--card-border);
  border-radius: 1px;
  transition: background 0.18s ease;
}

.wizard-step-divider.active {
  background: var(--accent);
}

.wizard-pane {
  display: none;
}

.wizard-pane.active {
  display: block;
  animation: wizardPaneFadeIn 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes wizardPaneFadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .wizard-pane.active {
    animation: none;
  }
}

/* Optional Auth Card on Step 1 */
.auth-optional-card {
  background: var(--card-bg);
  border: 1px dashed var(--card-border);
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  margin-bottom: 6px;
}

.auth-card-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.auth-card-title {
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.tag-badge {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(37, 99, 235, 0.12);
  color: var(--accent);
}

.auth-card-desc {
  font-size: 0.74rem;
  color: var(--subtle-text);
  line-height: 1.35;
}

/* Logged-in Banner on Step 1 */
.auth-logged-card {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: 12px;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  margin-bottom: 6px;
}

.auth-logged-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.auth-logged-check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #10B981;
  color: #FFFFFF;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.auth-logged-name {
  font-size: 0.86rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.auth-logged-isu {
  font-size: 0.74rem;
  color: var(--subtle-text);
}

.btn-ghost-sm {
  background: transparent;
  border: 1px solid var(--card-border);
  border-radius: 6px;
  color: var(--subtle-text);
  padding: 4px 8px;
  font-size: 0.74rem;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.btn-ghost-sm:hover {
  color: var(--text-color);
  border-color: var(--text-color);
}

.modal-footer-wizard {
  margin-top: 20px;
}

.modal-footer-wizard.dual-buttons {
  display: flex;
  gap: 10px;
}

.modal-footer-wizard.dual-buttons .btn-secondary {
  flex: 1;
}

.modal-footer-wizard.dual-buttons .btn-primary {
  flex: 2;
}

.field-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.field-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
  background: rgba(16, 185, 129, 0.14);
  color: #10B981;
}

.field-error-text {
  display: block;
  font-size: 0.74rem;
  color: var(--error, #EF4444);
  margin-top: 4px;
}

.clean-input.input-error {
  border-color: var(--error, #EF4444) !important;
}

input[readonly] {
  opacity: 0.9;
  background: var(--tag-bg);
  cursor: not-allowed;
}

/* ==========================================================================
   Telegram Profile & Notifications Management Styles
   ========================================================================== */
.tg-profile-card {
  background: var(--card-bg, rgba(255, 255, 255, 0.04));
  border: 1px solid var(--card-border, rgba(255, 255, 255, 0.08));
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
}

.tg-header-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.tg-user-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(41, 182, 246, 0.12);
  color: #29B6F6;
  padding: 4px 10px;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 500;
}

.tg-link-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  padding: 12px 0;
}

.tg-qr-frame {
  background: #FFFFFF;
  padding: 10px;
  border-radius: 10px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.tg-waiting-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--subtle-text, #94A3B8);
}

.tg-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(41, 182, 246, 0.3);
  border-top-color: #29B6F6;
  border-radius: 50%;
  animation: tgSpin 0.8s linear infinite;
}

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

.settings-section-title {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--subtle-text, #94A3B8);
  margin: 16px 0 8px 0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.toggle-row:last-child {
  border-bottom: none;
}

.toggle-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-right: 12px;
}

.toggle-label {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-color, #F8FAFC);
}

.toggle-desc {
  font-size: 0.74rem;
  color: var(--subtle-text, #94A3B8);
  line-height: 1.3;
}

/* Custom iOS / Fluent Switch */
.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.switch-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.16);
  transition: .25s ease;
  border-radius: 24px;
}

.switch-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: #FFFFFF;
  transition: .25s ease;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.4);
}

.switch input:checked + .switch-slider {
  background-color: var(--primary, #3B82F6);
}

.switch input:checked + .switch-slider:before {
  transform: translateX(20px);
}