/* CSS Reset and Variables - PREMIUM LIGHT MODE Theme */
:root {
  --bg-primary: #f8fafc; /* Soft Slate 50 */
  --bg-secondary: #ffffff; /* Pure White */
  --bg-card: #ffffff;
  --bg-hover: #f1f5f9; /* Slate 100 */
  --border-color: #e2e8f0; /* Slate 200 */
  --border-hover: #cbd5e1; /* Slate 300 */
  
  --accent-blue: #2563eb; /* Cobalt Blue */
  --accent-blue-glow: rgba(37, 99, 235, 0.08);
  
  --accent-cyan: #0891b2;
  
  --color-green: #10b981;
  --color-green-glow: rgba(16, 185, 129, 0.08);
  
  --color-orange: #d97706; /* Darker amber for readability on light */
  --color-orange-glow: rgba(217, 119, 6, 0.08);
  
  --color-red: #dc2626; /* Darker red for readability on light */
  --color-red-glow: rgba(220, 38, 38, 0.08);
  
  --text-main: #0f172a; /* Slate 900 */
  --text-secondary: #475569; /* Slate 600 */
  --text-muted: #64748b; /* Slate 500 */
  
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 1px 2px 0 rgba(0, 0, 0, 0.03);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.06), 0 4px 6px -2px rgba(15, 23, 42, 0.02);
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  
  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-family);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Scrollbars */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--border-hover);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* App Container Layout */
.app-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  min-height: 100vh;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-img {
  width: 64px;
  height: 64px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  object-fit: cover;
  transition: var(--transition-fast);
}

.logo-img:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.logo-text h1 {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: #28317E;
}

.header-actions {
  display: flex;
  gap: 0.75rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-fast);
  font-family: var(--font-family);
}

.btn-primary {
  background-color: var(--accent-blue);
  color: #fff;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
  background-color: #1d4ed8;
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(37, 99, 235, 0.25);
}

.btn-secondary {
  background-color: var(--bg-secondary);
  color: var(--text-main);
  border-color: var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--bg-hover);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

.btn-tertiary {
  background-color: transparent;
  color: var(--text-secondary);
}

.btn-tertiary:hover {
  color: var(--text-main);
  background-color: rgba(0, 0, 0, 0.03);
}

.btn-success {
  background-color: var(--color-green);
  color: #fff;
  box-shadow: 0 4px 10px rgba(16, 185, 129, 0.2);
}
.btn-success:hover {
  background-color: #059669;
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(16, 185, 129, 0.25);
}

.btn-warning {
  background-color: var(--color-orange);
  color: #fff;
  box-shadow: 0 4px 10px rgba(217, 119, 6, 0.2);
}
.btn-warning:hover {
  background-color: #b45309;
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(217, 119, 6, 0.25);
}

.btn-danger {
  background-color: var(--color-red);
  color: #fff;
  box-shadow: 0 4px 10px rgba(220, 38, 38, 0.2);
}
.btn-danger:hover {
  background-color: #b91c1c;
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(220, 38, 38, 0.25);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.35rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.btn-icon:hover {
  color: var(--text-main);
  background-color: rgba(0, 0, 0, 0.04);
}

.btn-icon.delete:hover {
  color: var(--color-red);
  background-color: rgba(220, 38, 38, 0.06);
}

/* Inline workflow action buttons */
.btn-table-action {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-fast);
  font-family: var(--font-family);
  margin-right: 0.35rem;
}

.btn-table-action.primary {
  background-color: var(--accent-blue);
  color: #fff;
  box-shadow: 0 1px 3px rgba(37, 99, 235, 0.2);
}
.btn-table-action.primary:hover {
  background-color: #1d4ed8;
}

.btn-table-action.warning {
  background-color: var(--color-orange);
  color: #fff;
  box-shadow: 0 1px 3px rgba(217, 119, 6, 0.2);
}
.btn-table-action.warning:hover {
  background-color: #b45309;
}

.btn-table-action.success {
  background-color: var(--color-green);
  color: #fff;
  box-shadow: 0 1px 3px rgba(16, 185, 129, 0.2);
}
.btn-table-action.success:hover {
  background-color: #059669;
}

.btn-table-action.danger {
  background-color: var(--color-red);
  color: #fff;
  box-shadow: 0 1px 3px rgba(220, 38, 38, 0.2);
}
.btn-table-action.danger:hover {
  background-color: #b91c1c;
}

/* Stats KPI Dashboard */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.stat-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

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

.stat-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-icon-wrapper {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-icon-wrapper.blue { background-color: rgba(37, 99, 235, 0.08); color: var(--accent-blue); }
.stat-icon-wrapper.green { background-color: rgba(16, 185, 129, 0.08); color: var(--color-green); }
.stat-icon-wrapper.orange { background-color: rgba(217, 119, 6, 0.08); color: var(--color-orange); }
.stat-icon-wrapper.red { background-color: rgba(220, 38, 38, 0.08); color: var(--color-red); }

.stat-value {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-main);
  line-height: 1;
}

.stat-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.warning-glow {
  border-color: rgba(220, 38, 38, 0.15);
}

.warning-glow:hover {
  border-color: rgba(220, 38, 38, 0.3);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.05);
}

/* Toolbar Panel */
.toolbar-panel {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  box-shadow: var(--shadow-sm);
}

.search-box {
  flex: 1;
  min-width: 280px;
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 1.25rem;
  color: var(--text-secondary);
  pointer-events: none;
  z-index: 2;
}

.search-box input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 3.25rem !important; /* Forces left padding to override general text input styles */
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 0.875rem;
  transition: var(--transition-fast);
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px var(--accent-blue-glow);
}

.filter-box {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.filter-group label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

.filter-group select {
  padding: 0.65rem 1.75rem 0.65rem 0.75rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-group select:focus {
  outline: none;
  border-color: var(--accent-blue);
}

/* Data Panel & Table */
.data-panel {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.table-container {
  width: 100%;
  overflow-x: auto;
  position: relative;
  min-height: 200px;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

th {
  background-color: #f8fafc;
  color: var(--text-secondary);
  font-weight: 600;
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

td {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
  white-space: nowrap;
  vertical-align: middle;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background-color: #f8fafc;
}

/* Text Alignments */
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Badges & Plain Text Table Cell formatting */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 6px;
}

.badge-lpn {
  font-family: var(--font-family);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.02em;
}

.badge-wh {
  background-color: var(--accent-blue-glow);
  color: var(--accent-blue);
}

.badge-cases {
  font-family: var(--font-family);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.badge-days {
  font-family: var(--font-family);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.badge-days.overdue-warning {
  color: var(--color-orange);
  font-weight: 600;
}

.badge-days.overdue-danger {
  color: var(--color-red);
  font-weight: 700;
}

.status-badge {
  display: inline-flex;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.status-badge.pending { background-color: #f1f5f9; color: var(--text-secondary); }
.status-badge.received { background-color: var(--color-green-glow); color: var(--color-green); }
.status-badge.investigation { background-color: rgba(220, 38, 38, 0.1); color: var(--color-red); }
.status-badge.claim-waiting { background-color: rgba(217, 119, 6, 0.12); color: var(--color-orange); }
.status-badge.claim-approved { background-color: var(--color-green-glow); color: var(--color-green); border: 1px solid rgba(16, 185, 129, 0.2); }
.status-badge.claim-rejected { background-color: rgba(220, 38, 38, 0.12); color: var(--color-red); border: 1px solid rgba(220, 38, 38, 0.2); }

/* Table Investigation Alert Row */
tr.row-overdue-investigate {
  background-color: rgba(220, 38, 38, 0.015);
}
tr.row-overdue-investigate:hover td {
  background-color: rgba(220, 38, 38, 0.035);
}

/* Loading & Empty States */
.table-loading {
  text-align: center;
}

.spinner-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 0;
  gap: 1rem;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(0, 0, 0, 0.05);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 1s infinite linear;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
  color: var(--text-secondary);
  gap: 0.75rem;
}

.empty-state svg {
  color: var(--text-muted);
}

.empty-state h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 0.5rem;
}

.empty-state p {
  max-width: 400px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.hidden {
  display: none !important;
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 1;
  transition: opacity var(--transition-fast);
}

.modal-box {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  width: 100%;
  max-width: 580px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: slide-up var(--transition-normal);
}

@keyframes slide-up {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  transition: var(--transition-fast);
}

.modal-close:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 1.5rem;
}

/* Forms */
.form-group {
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
}

.form-row {
  display: flex;
  gap: 1.25rem;
}

label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

input[type="text"],
input[type="date"],
select,
textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 0.875rem;
  transition: var(--transition-fast);
}

input[type="text"]:focus,
input[type="date"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px var(--accent-blue-glow);
}

textarea {
  resize: vertical;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  font-weight: 500;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.75rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1.25rem;
}

/* Drag and Drop Zone */
.drag-drop-zone {
  border: 2px dashed var(--border-color);
  border-radius: 12px;
  padding: 3rem 1.5rem;
  text-align: center;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  background-color: var(--bg-primary);
  transition: var(--transition-normal);
}

.drag-drop-zone:hover,
.drag-drop-zone.active {
  border-color: var(--accent-blue);
  background-color: rgba(37, 99, 235, 0.02);
}

.drag-drop-zone svg {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.drag-drop-zone:hover svg,
.drag-drop-zone.active svg {
  color: var(--accent-blue);
}

.drag-drop-zone .primary-text {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
}

.drag-drop-zone .secondary-text {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.browse-link {
  color: var(--accent-blue);
  text-decoration: underline;
  font-weight: 600;
}

.upload-file-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin-top: 1rem;
}

.upload-file-info .file-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent-cyan);
}

/* Feedback alerts */
.upload-feedback,
.form-feedback {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
}

.feedback-success {
  background-color: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.15);
  color: var(--color-green);
}

.feedback-error {
  background-color: rgba(220, 38, 38, 0.08);
  border: 1px solid rgba(220, 38, 38, 0.15);
  color: var(--color-red);
}

/* Login Card styling */
.login-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.5rem;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
  animation: slide-up var(--transition-normal);
}

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

.login-header h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: #28317E;
  margin-bottom: 0.25rem;
  letter-spacing: -0.025em;
}

.login-header p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* App Footer Styling */
.app-footer {
  margin-top: auto;
  padding: 1.5rem 0;
  text-align: center;
  border-top: 1px solid var(--border-color);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Mobile & Tablet Responsiveness */
@media (max-width: 992px) {
  .app-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }

  .header-logo {
    width: 100%;
  }

  .header-actions {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .header-actions .btn {
    flex: 1 1 auto;
    justify-content: center;
    font-size: 0.85rem;
    padding: 0.65rem 1rem;
  }
}

@media (max-width: 768px) {
  .app-container {
    padding: 1rem;
    gap: 1.5rem;
  }

  .toolbar-panel {
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
    padding: 1rem;
  }

  .search-box {
    width: 100%;
    min-width: unset;
  }

  .filter-box {
    width: 100%;
    justify-content: space-between;
    gap: 0.75rem;
  }

  .filter-group {
    flex: 1 1 calc(50% - 0.5rem);
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
  }

  .filter-group label {
    font-size: 0.75rem;
  }

  .filter-group select {
    width: 100%;
  }

  /* Modals */
  .modal-box {
    width: 95%;
    max-height: 90vh;
    padding: 1.5rem;
    margin: 1rem auto;
  }

  .form-row {
    flex-direction: column;
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .header-logo h1 {
    font-size: 1.25rem;
  }

  .logo-img {
    width: 48px;
    height: 48px;
  }

  .header-actions {
    flex-direction: column;
  }

  .header-actions .btn {
    width: 100%;
  }

  .filter-group {
    flex: 1 1 100%;
  }
}