.admin-layout {
  display: flex;
  min-height: calc(100vh - 78px);
  background: var(--bg-body);
}

/* Sidebar */
.admin-sidebar {
  width: 260px;
  background: #ffffff;
  border-right: 1px solid var(--border-light);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.admin-user-profile {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--bg-body);
  border-radius: var(--radius-md);
  margin-bottom: 24px;
}

.admin-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--brand-green);
}

.admin-user-name {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--brand-navy);
  line-height: 1.2;
}

.admin-user-role {
  font-size: 0.76rem;
  color: var(--brand-cyan);
  font-weight: 600;
}

.sidebar-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sidebar-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.sidebar-nav-link:hover, .sidebar-nav-link.active {
  background: var(--brand-green-light);
  color: var(--brand-green-hover);
}

.sidebar-nav-link i {
  font-size: 1.1rem;
  width: 20px;
  text-align: center;
}

.sidebar-footer {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}

/* Admin Content Area */
.admin-main {
  flex: 1;
  padding: 32px 36px;
  overflow-y: auto;
}

.admin-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}

.admin-title-group h2 {
  font-size: 1.8rem;
  color: var(--brand-navy);
  margin-bottom: 4px;
}

.admin-title-group p {
  color: var(--text-secondary);
  font-size: 0.92rem;
}

/* KPI Summary Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.kpi-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 20px 22px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-xs);
  display: flex;
  align-items: center;
  gap: 18px;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s ease, border-color 0.3s ease;
}
.kpi-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: 0 14px 28px rgba(11, 37, 58, 0.08);
  border-color: var(--brand-cyan);
}
.kpi-card:hover .kpi-icon-wrap {
  transform: scale(1.08) rotate(4deg);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.kpi-icon-wrap {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.kpi-icon-wrap.green {
  background: var(--paid-bg);
  color: var(--brand-green);
}
.kpi-icon-wrap.red {
  background: var(--unpaid-bg);
  color: var(--unpaid-red);
}
.kpi-icon-wrap.cyan {
  background: var(--brand-cyan-light);
  color: var(--brand-cyan);
}
.kpi-icon-wrap.navy {
  background: rgba(11, 37, 58, 0.08);
  color: var(--brand-navy);
}

.kpi-value {
  font-size: 1.6rem;
  font-weight: 800;
  font-family: var(--font-heading);
  color: var(--brand-navy);
  line-height: 1.1;
}

.kpi-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* Table Controls & Search */
.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.table-search-group {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  max-width: 480px;
}

.search-input-wrap {
  position: relative;
  width: 100%;
}

.search-input-wrap i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

[dir="rtl"] .search-input-wrap i {
  left: auto;
  right: 14px;
}

.search-input-wrap input {
  padding-left: 38px;
}

[dir="rtl"] .search-input-wrap input {
  padding-left: 14px;
  padding-right: 38px;
}

/* Data Table Styles */
.table-container {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-xs);
  overflow-x: auto;
  margin-bottom: 24px;
}

.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

[dir="rtl"] .custom-table {
  text-align: right;
}

.custom-table th {
  background: var(--bg-card-subtle);
  color: var(--brand-navy);
  font-weight: 700;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-light);
  white-space: nowrap;
}

.custom-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
}

.custom-table tr:hover td {
  background: #fafcff;
}

/* Payment Status Segmented Toggle Buttons */
.payment-toggle-group {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: #f1f5f9;
  padding: 3px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-light);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.04);
}

.pay-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  border: 1.5px solid transparent;
  cursor: pointer;
  background: #ffffff;
  color: #64748b;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
  line-height: 1.2;
}

.pay-toggle-btn i {
  font-size: 0.85rem;
  transition: transform 0.2s ease;
}

.pay-toggle-btn:hover {
  transform: translateY(-1px);
}

.pay-toggle-btn:active {
  transform: scale(0.96);
}

/* Inactive button hover previews */
.pay-toggle-paid:not(.active):hover {
  background: #ecfdf5;
  color: #059669;
  border-color: #a7f3d0;
}

.pay-toggle-unpaid:not(.active):hover {
  background: #fef2f2;
  color: #dc2626;
  border-color: #fecaca;
}

/* Active Paid Button (Rich Emerald Green) */
.pay-toggle-paid.active {
  background: #ecfdf5;
  color: #065f46;
  border-color: #10b981;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.28);
}

.pay-toggle-paid.active i {
  color: #10b981;
  transform: scale(1.1);
}

.pay-toggle-paid.active small {
  color: #047857;
  font-weight: 600;
  opacity: 0.95;
}

/* Active Not Paid Button (Rich Crimson Red) */
.pay-toggle-unpaid.active {
  background: #fef2f2;
  color: #991b1b;
  border-color: #ef4444;
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.28);
}

.pay-toggle-unpaid.active i {
  color: #ef4444;
  transform: scale(1.1);
}

/* Fallback & Select Styling for Dropdowns with Explicit Contrasting Colors */
.status-pill-select {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.82rem;
  border: 1.5px solid transparent;
  cursor: pointer;
  outline: none;
  transition: var(--transition-fast);
}

.status-pill-select.status-paid {
  background: #ecfdf5 !important;
  color: #065f46 !important;
  border-color: #10b981 !important;
  box-shadow: 0 2px 6px rgba(16, 185, 129, 0.2);
}

.status-pill-select.status-unpaid {
  background: #fef2f2 !important;
  color: #991b1b !important;
  border-color: #ef4444 !important;
  box-shadow: 0 2px 6px rgba(239, 68, 68, 0.2);
}

.status-pill-select.status-pending {
  background: var(--pending-bg);
  color: #b45309;
  border-color: var(--pending-border);
}

/* Explicit option colors so dropdown items NEVER share the same color */
.status-pill-select option,
.form-select option {
  background-color: #ffffff !important;
  color: var(--brand-navy) !important;
}

.status-pill-select option[value="paid"],
.form-select option[value="paid"],
.opt-paid {
  background-color: #ecfdf5 !important;
  color: #065f46 !important;
  font-weight: 700;
}

.status-pill-select option[value="unpaid"],
.form-select option[value="unpaid"],
.opt-unpaid {
  background-color: #fef2f2 !important;
  color: #991b1b !important;
  font-weight: 700;
}

/* WhatsApp Instant Messaging Button in Table */
.btn-whatsapp-table {
  background: #ecfdf5;
  color: #059669;
  border: 1px solid #a7f3d0;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-fast);
}
.btn-whatsapp-table:hover {
  background: #25d366;
  color: #ffffff;
  border-color: #25d366;
  transform: translateY(-1px);
}

/* Month Reset / Archive Banner */
.archive-banner {
  background: linear-gradient(135deg, #e0f2fe 0%, #ecfdf5 100%);
  border: 1.5px solid #a7f3d0;
  border-radius: var(--radius-md);
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.archive-info {
  display: flex;
  align-items: center;
  gap: 16px;
}

.archive-info i {
  font-size: 1.8rem;
  color: var(--brand-green);
}

.archive-info h4 {
  font-size: 1rem;
  color: var(--brand-navy);
}

.archive-info p {
  font-size: 0.84rem;
  color: var(--text-secondary);
}

/* Zoom Live QR Code Display */
.qr-display-box {
  background: #ffffff;
  padding: 24px;
  border-radius: var(--radius-md);
  border: 2px dashed var(--brand-green);
  text-align: center;
  margin-bottom: 20px;
}

.qr-canvas-holder {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 16px 0;
}

.qr-pin-display {
  font-family: monospace;
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: var(--brand-navy);
  background: var(--bg-card-subtle);
  padding: 10px 20px;
  border-radius: var(--radius-md);
  display: inline-block;
  margin-bottom: 12px;
}

/* Responsive Table & Admin Dashboard */
@media (max-width: 900px) {
  .admin-layout {
    flex-direction: column;
  }
  .admin-sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border-light);
    padding: 16px 14px;
  }
  .sidebar-nav {
    flex-direction: row;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
    gap: 8px;
    padding-bottom: 6px;
  }
  .sidebar-nav-item,
  .sidebar-nav-link {
    white-space: nowrap !important;
    padding: 8px 14px;
    font-size: 0.84rem;
    flex-shrink: 0 !important;
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }
  .sidebar-nav li {
    flex-shrink: 0 !important;
    display: inline-block;
  }
  .admin-main {
    padding: 18px 14px;
  }
  .kpi-grid {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
  }
  .kpi-card {
    padding: 16px 14px;
  }
  .kpi-value {
    font-size: 1.4rem;
  }
  .table-toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  .table-search-group {
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .kpi-grid {
    grid-template-columns: 1fr 1fr;
  }
  .admin-sidebar-header {
    margin-bottom: 12px;
  }
  .admin-sidebar-header h3 {
    font-size: 1.1rem;
  }
}

/* ==========================================================================
   GOOGLE CLASSROOM-STYLE SUBMISSIONS & GRADING DASHBOARD
   ========================================================================== */

.submissions-modal-card {
  width: 96vw !important;
  max-width: 1320px !important;
  height: 92vh !important;
  max-height: 92vh !important;
  display: flex !important;
  flex-direction: column !important;
  padding: 0 !important;
  overflow: hidden !important;
  border-radius: 20px !important;
  background: #ffffff !important;
  box-shadow: 0 25px 65px -12px rgba(15, 23, 42, 0.35) !important;
}

.classroom-header {
  padding: 16px 24px;
  background: #f8fafc;
  border-bottom: 1.5px solid #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  flex-shrink: 0;
}

.classroom-header-left {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.classroom-title-wrap h3 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--brand-navy);
  display: flex;
  align-items: center;
  gap: 8px;
}

.classroom-title-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 4px;
  flex-wrap: wrap;
}

.classroom-stats-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.classroom-stat-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  border: 1px solid transparent;
}

.classroom-stat-pill.stat-turned-in {
  background: #ecfdf5;
  color: #047857;
  border-color: #a7f3d0;
}

.classroom-stat-pill.stat-graded {
  background: #eff6ff;
  color: #1d4ed8;
  border-color: #bfdbfe;
}

.classroom-stat-pill.stat-missing {
  background: #fff1f2;
  color: #be123c;
  border-color: #fecdd3;
}

.classroom-stat-pill.stat-avg {
  background: #f1f5f9;
  color: var(--brand-navy);
  border-color: #cbd5e1;
}

.classroom-view-toggle {
  display: inline-flex;
  background: #e2e8f0;
  padding: 3px;
  border-radius: 10px;
  gap: 2px;
}

.classroom-view-btn {
  border: none;
  background: transparent;
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.18s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.classroom-view-btn.active {
  background: #ffffff;
  color: var(--brand-navy);
  box-shadow: 0 2px 5px rgba(0,0,0,0.08);
}

.classroom-split-layout {
  display: flex;
  flex: 1;
  height: calc(100% - 75px);
  overflow: hidden;
  position: relative;
}

/* Sidebar: Student Roster */
.classroom-sidebar {
  width: 370px;
  min-width: 320px;
  border-right: 1.5px solid #e2e8f0;
  background: #ffffff;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}

.classroom-search-box {
  padding: 12px 16px;
  border-bottom: 1px solid #f1f5f9;
  background: #ffffff;
}

.classroom-search-input {
  width: 100%;
  padding: 8px 14px 8px 34px;
  border: 1.5px solid #e2e8f0;
  border-radius: 10px;
  font-size: 0.84rem;
  outline: none;
  transition: border-color 0.2s;
  background: #f8fafc url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'%3E%3C/circle%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'%3E%3C/line%3E%3C/svg%3E") no-repeat 12px center;
}

.classroom-search-input:focus {
  border-color: var(--brand-cyan);
  background-color: #ffffff;
}

.classroom-filter-tabs {
  display: flex;
  border-bottom: 1.5px solid #e2e8f0;
  background: #f8fafc;
  padding: 4px 8px 0 8px;
  gap: 4px;
  overflow-x: auto;
}

.classroom-tab-btn {
  border: none;
  background: transparent;
  padding: 8px 12px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.18s;
  white-space: nowrap;
}

.classroom-tab-btn:hover {
  color: var(--brand-navy);
}

.classroom-tab-btn.active {
  color: var(--brand-cyan);
  border-bottom-color: var(--brand-cyan);
  background: #ffffff;
  border-radius: 8px 8px 0 0;
}

.classroom-student-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.classroom-student-item {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1.5px solid transparent;
  background: #ffffff;
  cursor: pointer;
  transition: all 0.18s ease;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.classroom-student-item:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
}

.classroom-student-item.active {
  background: #f0fdf4;
  border-color: #86efac;
  box-shadow: 0 3px 10px rgba(22, 101, 52, 0.08);
}

.classroom-student-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #e2e8f0;
  color: var(--brand-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  flex-shrink: 0;
}

.classroom-student-item.active .classroom-student-avatar {
  background: #dcfce7;
  color: #15803d;
}

.classroom-student-details {
  flex: 1;
  min-width: 0;
}

.classroom-student-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--brand-navy);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.classroom-student-subtext {
  font-size: 0.74rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
  flex-wrap: wrap;
}

.classroom-student-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  flex-shrink: 0;
}

/* Workspace: Right Active Grading Pane */
.classroom-workspace {
  flex: 1;
  overflow-y: auto;
  padding: 24px 30px;
  background: #f8fafc;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.classroom-student-banner {
  background: #ffffff;
  border-radius: 16px;
  padding: 20px 24px;
  border: 1.5px solid #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.classroom-student-banner-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.classroom-banner-avatar {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: var(--brand-green-light);
  color: var(--brand-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  flex-shrink: 0;
}

.classroom-nav-buttons {
  display: flex;
  align-items: center;
  gap: 8px;
}

.classroom-work-card {
  background: #ffffff;
  border: 1.5px solid #e2e8f0;
  border-radius: 16px;
  padding: 22px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.classroom-work-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.classroom-file-chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: #f1f5f9;
  border: 1.5px solid #cbd5e1;
  border-radius: 12px;
  gap: 16px;
  flex-wrap: wrap;
}

.classroom-file-chip-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.classroom-file-icon {
  width: 44px;
  height: 44px;
  background: #fee2e2;
  color: #dc2626;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.classroom-grading-card {
  background: #ffffff;
  border: 1.5px solid #e2e8f0;
  border-radius: 16px;
  padding: 22px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.classroom-grade-input-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.classroom-grade-input {
  width: 140px;
  padding: 10px 14px;
  font-size: 1.25rem;
  font-weight: 800;
  text-align: center;
  border: 2px solid var(--border-light);
  border-radius: 10px;
  color: var(--brand-navy);
}

.classroom-grade-input:focus {
  border-color: var(--brand-cyan);
  outline: none;
}

.classroom-returned-box {
  background: #f0fdf4;
  border: 1.5px solid #86efac;
  border-radius: 14px;
  padding: 18px;
  margin-top: 18px;
}

/* Full Table View in Classroom Modal */
.classroom-full-table-wrap {
  flex: 1;
  overflow: auto;
  padding: 24px;
  background: #ffffff;
}

@media (max-width: 900px) {
  .classroom-split-layout {
    flex-direction: column;
    height: auto;
  }
  .classroom-sidebar {
    width: 100%;
    max-height: 280px;
    border-right: none;
    border-bottom: 1.5px solid #e2e8f0;
  }
  .classroom-workspace {
    padding: 16px;
  }
  .submissions-modal-card {
    width: 100vw !important;
    height: 100vh !important;
    max-height: 100vh !important;
    border-radius: 0 !important;
  }
}

/* Shake animation for form input validation errors */
@keyframes shakeInput {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-6px); }
  40%, 80% { transform: translateX(6px); }
}

.shake-input {
  animation: shakeInput 0.45s ease-in-out;
}

/* Chemistry Study Groups Grid */
#groupsListContainer {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

/* =============================================
   Premium Assignment Deadline Card Styles
   ============================================= */

/* Deadline card container */
.assignment-deadline-card {
  background: linear-gradient(135deg, #f0f9ff 0%, #f8fafc 60%, #f0fdf4 100%) !important;
  border: 1.5px solid #bae6fd !important;
  border-radius: 14px !important;
  padding: 18px 20px !important;
  margin-bottom: 18px !important;
  position: relative;
  overflow: hidden;
}

.assignment-deadline-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #00b4d8, #10b981, #f59e0b);
  border-radius: 14px 14px 0 0;
}

/* Deadline input wrappers — styled as pill cards */
.deadline-field-wrap {
  position: relative;
}

.deadline-field-wrap .deadline-field-icon {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  pointer-events: none;
  z-index: 2;
}

.deadline-field-wrap .deadline-field-icon.icon-date {
  background: linear-gradient(135deg, #e0f2fe, #bae6fd);
  color: #0284c7;
}

.deadline-field-wrap .deadline-field-icon.icon-time {
  background: linear-gradient(135deg, #d1fae5, #a7f3d0);
  color: #059669;
}

.deadline-field-wrap .deadline-field-icon.icon-score {
  background: linear-gradient(135deg, #fef9c3, #fde68a);
  color: #b45309;
}

/* Enhanced Due Date & Time Picker Controls */
.date-input-enhanced,
.time-input-enhanced {
  border-radius: 10px !important;
  padding: 10px 38px 10px 48px !important;
  font-size: 0.93rem !important;
  font-weight: 700 !important;
  color: #0c4a6e !important;
  transition: border-color 0.15s ease, box-shadow 0.15s ease !important;
  box-shadow: 0 1px 3px rgba(0, 180, 216, 0.06) !important;
  width: 100% !important;
  box-sizing: border-box !important;
  letter-spacing: 0.01em !important;
  cursor: pointer !important;
}

.date-input-enhanced {
  border: 1.5px solid #bae6fd !important;
  background: #ffffff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%2300b4d8' viewBox='0 0 448 512'%3E%3Cpath d='M152 64H296V24C296 10.7 306.7 0 320 0C333.3 0 344 10.7 344 24V64H384C419.3 64 448 92.7 448 128V448C448 483.3 419.3 512 384 512H64C28.7 512 0 483.3 0 448V128C0 92.7 28.7 64 64 64H104V24C104 10.7 114.7 0 128 0C141.3 0 152 10.7 152 24V64zM48 248H400V160C400 142.3 385.7 128 368 128H80C62.3 128 48 142.3 48 160V248zm0 48V432C48 449.7 62.3 464 80 464H368C385.7 464 400 449.7 400 432V296H48z'/%3E%3C/svg%3E") no-repeat right 14px center / 15px 15px !important;
}

.time-input-enhanced {
  border: 1.5px solid #a7f3d0 !important;
  background: #ffffff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%2310b981' viewBox='0 0 512 512'%3E%3Cpath d='M256 0a256 256 0 1 1 0 512A256 256 0 1 1 256 0zm0 48a208 208 0 1 0 0 416A208 208 0 1 0 256 48zm-16 80c0-8.8 7.2-16 16-16s16 7.2 16 16v112l80 48c7.6 4.6 10.1 14.4 5.5 22s-14.4 10.1-22 5.5l-88-52.8c-4.7-2.8-7.5-7.9-7.5-13.4V128z'/%3E%3C/svg%3E") no-repeat right 14px center / 15px 15px !important;
}

.date-input-enhanced:hover,
.time-input-enhanced:hover {
  border-color: var(--brand-cyan) !important;
  box-shadow: 0 2px 8px rgba(0, 180, 216, 0.12) !important;
}

.date-input-enhanced:focus,
.time-input-enhanced:focus {
  border-color: var(--brand-cyan) !important;
  outline: none !important;
  box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.16) !important;
}

.date-input-enhanced::-webkit-calendar-picker-indicator,
.time-input-enhanced::-webkit-calendar-picker-indicator,
input[type="date"]::-webkit-calendar-picker-indicator,
input[type="time"]::-webkit-calendar-picker-indicator {
  display: none !important;
  -webkit-appearance: none;
}

/* Score input (plain, not date/time) premium style */
.score-input-enhanced {
  background: linear-gradient(180deg, #fffdf7 0%, #fef9ec 100%) !important;
  border: 1.5px solid #fde68a !important;
  border-radius: 10px !important;
  padding: 10px 12px 10px 48px !important;
  font-size: 0.93rem !important;
  font-weight: 700 !important;
  color: #78350f !important;
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1) !important;
  box-shadow: 0 2px 6px rgba(245, 158, 11, 0.08), inset 0 1px 0 rgba(255,255,255,0.9) !important;
  width: 100% !important;
  box-sizing: border-box !important;
}

.score-input-enhanced:hover {
  border-color: #f59e0b !important;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.14), inset 0 1px 0 rgba(255,255,255,0.9) !important;
  transform: translateY(-1px) !important;
}

.score-input-enhanced:focus {
  border-color: #f59e0b !important;
  outline: none !important;
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.18), 0 4px 12px rgba(245, 158, 11, 0.12) !important;
  transform: translateY(-1px) !important;
  background: #ffffff !important;
}

/* Late submission checkbox label — premium card style */
.late-submission-checkbox-label {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
  padding: 11px 14px;
  background: linear-gradient(135deg, #ffffff, #f8fafc);
  border: 1.5px solid #e2e8f0;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--brand-navy);
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  position: relative;
  overflow: hidden;
}

.late-submission-checkbox-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: #e2e8f0;
  border-radius: 10px 0 0 10px;
  transition: background 0.22s ease;
}

.late-submission-checkbox-label:hover {
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
  border-color: #94a3b8;
  box-shadow: 0 3px 8px rgba(0,0,0,0.08);
  transform: translateY(-1px);
}

.late-submission-checkbox-label:hover::before {
  background: #94a3b8;
}

.late-submission-checkbox-label input[type="checkbox"] {
  width: 17px !important;
  height: 17px !important;
  accent-color: #f59e0b !important;
  cursor: pointer !important;
  flex-shrink: 0;
}

.late-submission-checkbox-label.active {
  border-color: #f59e0b;
  background: linear-gradient(135deg, #fffbeb, #fef3c7);
  color: #78350f;
  box-shadow: 0 3px 10px rgba(245, 158, 11, 0.18);
}

.late-submission-checkbox-label.active::before {
  background: linear-gradient(180deg, #f59e0b, #d97706);
}

/* Deadline field label pills */
.deadline-label-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 20px;
  margin-bottom: 7px;
}

.deadline-label-pill.pill-date {
  background: #e0f2fe;
  color: #0369a1;
}

.deadline-label-pill.pill-time {
  background: #d1fae5;
  color: #065f46;
}

.deadline-label-pill.pill-score {
  background: #fef9c3;
  color: #92400e;
}

/* ==========================================================================
   DR. HEBA OSAMA - LUXURY CUSTOM DATE & TIME PICKER POPUP STYLING
   ========================================================================== */

/* The floating calendar container - GPU layer promoted, zero lag */
.flatpickr-calendar {
  background: #ffffff !important;
  border-radius: 18px !important;
  box-shadow: 0 8px 28px rgba(15, 45, 85, 0.16) !important;
  border: 1px solid rgba(0, 180, 216, 0.18) !important;
  padding: 14px 16px 14px !important;
  width: 320px !important;
  font-family: inherit !important;
  z-index: 999999 !important;
  transform: translateZ(0);
}

/* Arrow pointer above/below */
.flatpickr-calendar::before,
.flatpickr-calendar::after {
  display: none !important;
}

/* Months & Year Top Header */
.flatpickr-calendar .flatpickr-months {
  background: linear-gradient(135deg, rgba(0, 180, 216, 0.12) 0%, rgba(16, 185, 129, 0.1) 100%) !important;
  border-radius: 12px !important;
  padding: 6px 8px !important;
  margin-bottom: 10px !important;
  display: flex !important;
  align-items: center !important;
  position: relative !important;
  border: 1px solid rgba(0, 180, 216, 0.18) !important;
}

.flatpickr-calendar .flatpickr-month {
  height: 38px !important;
  color: #0f2d55 !important;
  fill: #0f2d55 !important;
}

.flatpickr-calendar .flatpickr-current-month {
  font-size: 1.02rem !important;
  font-weight: 700 !important;
  color: #0f2d55 !important;
  padding-top: 4px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 6px !important;
}

.flatpickr-calendar .flatpickr-current-month .cur-month {
  font-weight: 800 !important;
  color: #0a192f !important;
  letter-spacing: -0.2px !important;
}

.flatpickr-calendar .flatpickr-current-month .numInputWrapper {
  width: 68px !important;
  border-radius: 6px !important;
}

.flatpickr-calendar .flatpickr-current-month input.cur-year {
  font-weight: 700 !important;
  color: #0077b6 !important;
  background: rgba(255, 255, 255, 0.75) !important;
  border-radius: 6px !important;
  padding: 2px 4px !important;
}

/* Month Navigation Buttons (Arrows) */
.flatpickr-calendar .flatpickr-prev-month,
.flatpickr-calendar .flatpickr-next-month {
  width: 32px !important;
  height: 32px !important;
  padding: 0 !important;
  border-radius: 50% !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  background: #ffffff !important;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08) !important;
  border: 1px solid #e2e8f0 !important;
  color: #00b4d8 !important;
  fill: #00b4d8 !important;
  transition: background-color 0.15s ease, color 0.15s ease !important;
  top: 9px !important;
}

.flatpickr-calendar .flatpickr-prev-month:hover,
.flatpickr-calendar .flatpickr-next-month:hover {
  background: #00b4d8 !important;
  border-color: #00b4d8 !important;
  color: #ffffff !important;
  fill: #ffffff !important;
}

.flatpickr-calendar .flatpickr-prev-month svg,
.flatpickr-calendar .flatpickr-next-month svg {
  width: 13px !important;
  height: 13px !important;
  fill: inherit !important;
}

/* Weekday header row (Mon, Tue, etc.) */
.flatpickr-calendar .flatpickr-weekdays {
  margin-bottom: 6px !important;
  height: 28px !important;
}

.flatpickr-calendar .flatpickr-weekday {
  color: #64748b !important;
  font-weight: 700 !important;
  font-size: 0.74rem !important;
  text-transform: uppercase !important;
  letter-spacing: 0.8px !important;
}

/* Days container & Day Cells */
.flatpickr-calendar .flatpickr-days {
  width: 100% !important;
}

.flatpickr-calendar .dayContainer {
  width: 100% !important;
  min-width: 100% !important;
  max-width: 100% !important;
  justify-content: space-around !important;
}

.flatpickr-calendar .flatpickr-day {
  width: 38px !important;
  height: 38px !important;
  line-height: 38px !important;
  border-radius: 10px !important;
  font-size: 0.88rem !important;
  font-weight: 600 !important;
  color: #1e293b !important;
  border: 1.5px solid transparent !important;
  transition: background-color 0.1s ease, color 0.1s ease !important;
  margin: 2px 0 !important;
}

/* Day hover state */
.flatpickr-calendar .flatpickr-day:hover {
  background: #e0f2fe !important;
  color: #0284c7 !important;
  border-color: #bae6fd !important;
}

/* Today's Day */
.flatpickr-calendar .flatpickr-day.today {
  border: 2px solid #f59e0b !important;
  color: #d97706 !important;
  font-weight: 800 !important;
  background: #fffbeb !important;
}

.flatpickr-calendar .flatpickr-day.today:hover {
  background: #fef3c7 !important;
  color: #b45309 !important;
}

/* Selected Day (Primary vibrant Cyan -> Green gradient!) */
.flatpickr-calendar .flatpickr-day.selected,
.flatpickr-calendar .flatpickr-day.startRange,
.flatpickr-calendar .flatpickr-day.endRange {
  background: linear-gradient(135deg, #00b4d8 0%, #10b981 100%) !important;
  color: #ffffff !important;
  font-weight: 800 !important;
  border: none !important;
  box-shadow: 0 4px 10px rgba(0, 180, 216, 0.35) !important;
}

.flatpickr-calendar .flatpickr-day.selected:hover {
  background: linear-gradient(135deg, #0096c7 0%, #059669 100%) !important;
  color: #ffffff !important;
}

/* Outside month days */
.flatpickr-calendar .flatpickr-day.prevMonthDay,
.flatpickr-calendar .flatpickr-day.nextMonthDay {
  color: #cbd5e1 !important;
  font-weight: 400 !important;
}

/* Time Picker Panel */
.flatpickr-calendar.hasTime.noCalendar {
  width: 290px !important;
  padding: 16px !important;
}

.flatpickr-calendar .flatpickr-time {
  border-top: 1px dashed #bae6fd !important;
  padding: 12px 10px 4px !important;
  margin-top: 8px !important;
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%) !important;
  border-radius: 12px !important;
  height: auto !important;
  line-height: normal !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 6px !important;
}

.flatpickr-calendar.noCalendar .flatpickr-time {
  border-top: none !important;
  margin-top: 0 !important;
  padding: 4px 0 !important;
}

.flatpickr-calendar .flatpickr-time input {
  font-size: 1.25rem !important;
  font-weight: 800 !important;
  color: #0f2d55 !important;
  background: #ffffff !important;
  border: 1.5px solid #cbd5e1 !important;
  border-radius: 8px !important;
  padding: 4px 6px !important;
  height: 38px !important;
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.04) !important;
  transition: border-color 0.15s ease, box-shadow 0.15s ease !important;
}

.flatpickr-calendar .flatpickr-time input:hover,
.flatpickr-calendar .flatpickr-time input:focus {
  border-color: #00b4d8 !important;
  box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15) !important;
}

.flatpickr-calendar .flatpickr-time-separator {
  font-size: 1.3rem !important;
  font-weight: 800 !important;
  color: #00b4d8 !important;
}

.flatpickr-calendar .flatpickr-am-pm {
  font-size: 0.88rem !important;
  font-weight: 800 !important;
  color: #0369a1 !important;
  background: #e0f2fe !important;
  border-radius: 8px !important;
  padding: 6px 12px !important;
  border: 1px solid #bae6fd !important;
  cursor: pointer !important;
  transition: background-color 0.15s ease, color 0.15s ease !important;
}

.flatpickr-calendar .flatpickr-am-pm:hover {
  background: #00b4d8 !important;
  color: #ffffff !important;
}

/* Custom Calendar Footer with Quick Buttons */
.flatpickr-custom-footer {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  padding-top: 10px !important;
  margin-top: 8px !important;
  border-top: 1px dashed #e2e8f0 !important;
  gap: 6px !important;
}

.flatpickr-footer-left {
  display: flex;
  align-items: center;
  gap: 4px;
}

.flatpickr-footer-btn {
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  color: #475569;
  padding: 5px 10px;
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  display: flex;
  align-items: center;
  gap: 4px;
}

.flatpickr-footer-btn:hover {
  background: #00b4d8;
  color: #ffffff;
  border-color: #00b4d8;
}

.flatpickr-footer-btn.btn-today {
  color: #d97706;
  background: #fffbeb;
  border-color: #fde68a;
}
.flatpickr-footer-btn.btn-today:hover {
  background: #f59e0b;
  color: #ffffff;
  border-color: #f59e0b;
}

.flatpickr-footer-btn.btn-week {
  color: #0369a1;
  background: #e0f2fe;
  border-color: #bae6fd;
}
.flatpickr-footer-btn.btn-week:hover {
  background: #00b4d8;
  color: #ffffff;
  border-color: #00b4d8;
}

.flatpickr-footer-btn.btn-save {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  border-color: #059669;
  font-weight: 700;
  box-shadow: 0 2px 6px rgba(16, 185, 129, 0.35);
  margin-left: auto;
}
.flatpickr-footer-btn.btn-save:hover {
  background: #047857;
  border-color: #047857;
  color: #ffffff;
  transform: translateY(-1px);
}

/* Time presets panel for closing time */
.flatpickr-time-presets {
  display: flex !important;
  flex-direction: column !important;
  gap: 8px !important;
  margin-top: 10px !important;
  padding-top: 10px !important;
  border-top: 1px dashed #bae6fd !important;
  width: 100% !important;
}

.flatpickr-time-presets-title {
  font-size: 0.73rem;
  font-weight: 700;
  color: #0284c7;
  display: flex;
  align-items: center;
  gap: 5px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.flatpickr-time-pills-row {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  justify-content: center;
}

.flatpickr-time-save-row {
  width: 100%;
  margin-top: 2px;
}

.flatpickr-save-time-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 8px;
  background: linear-gradient(135deg, #00b4d8 0%, #0096c7 100%);
  color: #ffffff;
  font-size: 0.82rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 180, 216, 0.35);
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}
.flatpickr-save-time-btn:hover {
  background: #0077b6;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 180, 216, 0.45);
}
.flatpickr-save-time-btn:active {
  transform: translateY(0);
}

.flatpickr-time-pill {
  font-size: 0.74rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 6px;
  background: #f8fafc;
  color: #475569;
  border: 1px solid #e2e8f0;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.flatpickr-time-pill:hover {
  background: #10b981;
  color: #ffffff;
  border-color: #10b981;
}