/* ==========================================================================
   Bonvoice Call Records CRM - Design System & Modern CSS Architecture
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens & CSS Variables
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette - Light Theme (Enterprise Slate & Indigo) */
  --bg-app: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --bg-header: rgba(255, 255, 255, 0.85);
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --border-color: #e2e8f0;
  --border-color-light: #f1f5f9;
  
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-border: #bfdbfe;
  
  --success: #10b981;
  --success-bg: #ecfdf5;
  --success-text: #047857;
  
  --danger: #ef4444;
  --danger-bg: #fef2f2;
  --danger-text: #b91c1c;
  
  --warning: #f59e0b;
  --warning-bg: #fffbeb;
  --warning-text: #b45309;

  --purple: #8b5cf6;
  --purple-bg: #f5f3ff;
  --purple-text: #6d28d9;
  
  --info: #06b6d4;
  --info-bg: #ecfeff;
  --info-text: #0e7490;
  
  --failed: #64748b;
  --failed-bg: #f1f5f9;
  --failed-text: #475569;

  --rejected: #991b1b;
  --rejected-bg: #fee2e2;
  --rejected-text: #7f1d1d;

  --unknown: #64748b;
  --unknown-bg: #f1f5f9;
  --unknown-text: #475569;
  
  /* Typography */
  --font-family-base: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-mono: 'JetBrains Mono', monospace;
  
  /* Shadows & Elevation */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Borders & Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

[data-theme="dark"] {
  --bg-app: #0b0f19;
  --bg-card: #151c2c;
  --bg-card-hover: #1e293b;
  --bg-header: rgba(21, 28, 44, 0.85);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --border-color: #1e293b;
  --border-color-light: #334155;
  
  --primary: #3b82f6;
  --primary-hover: #60a5fa;
  --primary-light: rgba(59, 130, 246, 0.15);
  --primary-border: #1e3a8a;
  
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.15);
  --success-text: #34d399;
  
  --danger: #f87171;
  --danger-bg: rgba(239, 68, 68, 0.15);
  --danger-text: #fca5a5;
  
  --warning: #fbbf24;
  --warning-bg: rgba(245, 158, 11, 0.15);
  --warning-text: #fde047;

  --purple: #a78bfa;
  --purple-bg: rgba(139, 92, 246, 0.15);
  --purple-text: #c4b5fd;
  
  --info: #22d3ee;
  --info-bg: rgba(6, 182, 212, 0.15);
  --info-text: #67e8f9;
  
  --failed: #94a3b8;
  --failed-bg: rgba(148, 163, 184, 0.15);
  --failed-text: #cbd5e1;

  --rejected: #f87171;
  --rejected-bg: rgba(153, 27, 27, 0.2);
  --rejected-text: #fca5a5;

  --unknown: #94a3b8;
  --unknown-bg: rgba(148, 163, 184, 0.15);
  --unknown-text: #cbd5e1;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
}

/* --------------------------------------------------------------------------
   2. Reset & Global Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

[hidden] {
  display: none !important;
}

body {
  font-family: var(--font-family-base);
  background-color: var(--bg-app);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Typography Utilities */
.font-mono {
  font-family: var(--font-family-mono);
}

.text-right { text-align: right; }
.text-center { text-align: center; }

/* --------------------------------------------------------------------------
   3. Header Navigation
   -------------------------------------------------------------------------- */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-header);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 0.85rem 1.5rem;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary) 0%, #4f46e5 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}

.brand-text h1 {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.badge-brand {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: var(--primary-light);
  color: var(--primary);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
}

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

[data-theme="light"] .moon-icon { display: block; }
[data-theme="light"] .sun-icon { display: none; }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="dark"] .sun-icon { display: block; }

/* --------------------------------------------------------------------------
   4. Layout & Cards
   -------------------------------------------------------------------------- */
.main-content {
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  flex: 1;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 1.25rem 1.5rem;
  transition: background-color var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.card-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
}

.card-title h3 {
  font-size: 1.05rem;
  font-weight: 700;
}

.card-title svg {
  color: var(--primary);
}

/* --------------------------------------------------------------------------
   5. Metrics Cards Grid
   -------------------------------------------------------------------------- */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.metric-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.metric-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.icon-primary { background-color: var(--primary-light); color: var(--primary); }
.icon-success { background-color: var(--success-bg); color: var(--success); }
.icon-danger { background-color: var(--danger-bg); color: var(--danger); }
.icon-warning { background-color: var(--warning-bg); color: var(--warning); }
.icon-error { background-color: var(--danger-bg); color: var(--danger); }

.metric-details {
  display: flex;
  flex-direction: column;
}

.metric-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.metric-value {
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-primary);
  margin: 0.15rem 0;
}

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

/* --------------------------------------------------------------------------
   6. Form & Controls
   -------------------------------------------------------------------------- */
.quick-presets {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.preset-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-right: 0.25rem;
}

.btn-chip {
  background-color: var(--bg-app);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-chip:hover {
  background-color: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary-border);
}

.filter-form .form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  align-items: end;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.required-star { color: var(--danger); }
.optional-tag { color: var(--text-muted); font-weight: 400; font-size: 0.75rem; }

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.form-control, .form-select, .search-control {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-family: inherit;
  font-size: 0.875rem;
  color: var(--text-primary);
  background-color: var(--bg-app);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus, .form-select:focus, .search-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.form-control.is-invalid {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px var(--danger-bg);
}

.error-msg {
  font-size: 0.75rem;
  color: var(--danger);
  min-height: 1.1rem;
  display: none;
}

.form-group.has-error .error-msg {
  display: block;
}

.form-actions-cell {
  display: flex;
  gap: 0.75rem;
  flex-direction: row;
}

/* --------------------------------------------------------------------------
   7. Buttons Architecture
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 0.925rem;
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}

.btn-icon {
  padding: 0.5rem;
  border-radius: var(--radius-md);
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-hover);
  box-shadow: 0 4px 8px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
  background-color: var(--bg-app);
  border-color: var(--border-color);
  color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--bg-card-hover);
  border-color: var(--border-color-light);
}

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

.btn-outline:hover:not(:disabled) {
  background-color: var(--primary-light);
  border-color: var(--primary-border);
  color: var(--primary);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Spinner inside button */
.btn-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #ffffff;
  animation: spin 0.8s linear infinite;
}

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

/* --------------------------------------------------------------------------
   8. Toolbar Controls
   -------------------------------------------------------------------------- */
.table-card {
  padding: 0;
  overflow: hidden;
}

.table-toolbar {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
}

.toolbar-search {
  flex: 1;
  min-width: 280px;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input-wrapper svg {
  position: absolute;
  left: 0.85rem;
  color: var(--text-muted);
  pointer-events: none;
}

.search-control {
  padding-left: 2.5rem;
  padding-right: 2.25rem;
}

.clear-search-btn {
  position: absolute;
  right: 0.75rem;
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0 0.25rem;
}

.clear-search-btn:hover {
  color: var(--text-primary);
}

.toolbar-filters {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

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

.form-select-sm {
  padding: 0.45rem 0.65rem;
  font-size: 0.8rem;
  width: auto;
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* --------------------------------------------------------------------------
   9. Sticky Data Table & Scroll Container
   -------------------------------------------------------------------------- */
.table-container {
  position: relative;
  max-height: 580px;
  overflow: auto;
  scroll-behavior: smooth;
}

/* Custom Scrollbar */
.table-container::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
.table-container::-webkit-scrollbar-track {
  background: var(--bg-app);
}
.table-container::-webkit-scrollbar-thumb {
  background: var(--border-color-light);
  border-radius: var(--radius-full);
}
.table-container::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

.crm-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.875rem;
  text-align: left;
}

.crm-table th {
  position: sticky;
  top: 0;
  z-index: 10;
  background-color: var(--bg-app);
  color: var(--text-secondary);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
  user-select: none;
  white-space: nowrap;
}

.crm-table th.sortable {
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.crm-table th.sortable:hover {
  background-color: var(--bg-card-hover);
  color: var(--primary);
}

.sort-icon {
  margin-left: 0.3rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.crm-table th.sorted-asc .sort-icon,
.crm-table th.sorted-desc .sort-icon {
  color: var(--primary);
  font-weight: bold;
}

.crm-table td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  white-space: nowrap;
  vertical-align: middle;
}

.crm-table tbody tr {
  transition: background-color var(--transition-fast);
}

.crm-table tbody tr:hover {
  background-color: var(--bg-card-hover);
}

/* Interactive cell elements */
.phone-link {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.phone-link:hover {
  color: var(--primary);
  text-decoration: underline;
}

.call-id-tag {
  font-family: var(--font-family-mono);
  font-size: 0.775rem;
  background-color: var(--bg-app);
  border: 1px solid var(--border-color);
  padding: 0.2rem 0.45rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: all var(--transition-fast);
}

.call-id-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
  background-color: var(--primary-light);
}

/* --------------------------------------------------------------------------
   10. Status Badges & Direction Indicators
   -------------------------------------------------------------------------- */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.status-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.badge-answered {
  background-color: var(--success-bg);
  color: var(--success-text);
}
.badge-answered::before { background-color: var(--success); }

.badge-missed {
  background-color: var(--danger-bg);
  color: var(--danger-text);
}
.badge-missed::before { background-color: var(--danger); }

.badge-busy {
  background-color: var(--warning-bg);
  color: var(--warning-text);
}
.badge-busy::before { background-color: var(--warning); }

.badge-rejected {
  background-color: var(--rejected-bg);
  color: var(--rejected-text);
}
.badge-rejected::before { background-color: var(--rejected); }

.badge-failed {
  background-color: var(--failed-bg);
  color: var(--failed-text);
}
.badge-failed::before { background-color: var(--failed); }

.badge-unknown {
  background-color: var(--unknown-bg);
  color: var(--unknown-text);
}
.badge-unknown::before { background-color: var(--unknown); }

.direction-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.775rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: capitalize;
}

.dir-icon {
  width: 16px;
  height: 16px;
}

.dir-incoming { color: var(--info-text); }
.dir-outgoing { color: var(--success-text); }

/* --------------------------------------------------------------------------
   11. State Containers (Loading, Empty, Error)
   -------------------------------------------------------------------------- */
.state-container {
  padding: 4rem 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.state-illustration {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.state-container h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.state-container p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  max-width: 420px;
}

.spinner-large {
  width: 42px;
  height: 42px;
  border: 4px solid var(--border-color);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s infinite linear;
  margin-bottom: 1.25rem;
}

/* --------------------------------------------------------------------------
   12. Pagination Footer
   -------------------------------------------------------------------------- */
.table-pagination {
  padding: 0.9rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  background-color: var(--bg-card);
}

.pagination-info {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.page-numbers {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.page-btn {
  min-width: 32px;
  height: 32px;
  padding: 0 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background-color: var(--bg-app);
  color: var(--text-primary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.page-btn:hover:not(:disabled) {
  background-color: var(--bg-card-hover);
}

.page-btn.active {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

/* --------------------------------------------------------------------------
   13. Modals Framework
   -------------------------------------------------------------------------- */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  animation: fadeIn 0.2s ease;
}

.modal-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 520px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: modalSlideUp 0.25s ease;
}

.modal-header {
  padding: 1.15rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary);
}

.modal-title-group h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

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

.modal-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.audio-info-meta {
  background-color: var(--bg-app);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.meta-item {
  display: flex;
  flex-direction: column;
}

.meta-label {
  font-size: 0.725rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
}

.meta-val {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
}

.audio-element-wrapper {
  margin-top: 0.5rem;
}

.custom-audio-element {
  width: 100%;
  border-radius: var(--radius-md);
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-app);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* --------------------------------------------------------------------------
   14. Toast Notifications Framework
   -------------------------------------------------------------------------- */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  min-width: 280px;
  max-width: 400px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-primary);
  animation: toastSlideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Toggle switch component for modal settings */
.checkbox-group {
  flex-direction: row;
  align-items: center;
  gap: 0.75rem;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

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

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--border-color-light);
  transition: .3s;
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--primary);
}

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

.token-toggle-btn {
  position: absolute;
  right: 0.75rem;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

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

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

@keyframes toastSlideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* --------------------------------------------------------------------------
   15. Responsive Breakpoints
   -------------------------------------------------------------------------- */
@media (max-width: 992px) {
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Layout and Grid System with Vertical Sidebar */
.app-layout {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

.app-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

/* Sidebar Styling */
.app-sidebar {
  width: 280px;
  background-color: var(--bg-card);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  height: 100vh;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: transform var(--transition-normal), background-color var(--transition-normal), border-color var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.sidebar-brand {
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid var(--border-color-light);
}

.sidebar-brand .brand-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary) 0%, #4f46e5 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}

.sidebar-brand .brand-info {
  display: flex;
  flex-direction: column;
}

.sidebar-brand .brand-name {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
}

.sidebar-brand .brand-tagline {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 500;
}

.sidebar-nav {
  padding: 1.5rem 1rem;
  flex: 1;
}

.nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  background-color: var(--border-color-light);
  color: var(--primary);
}

.nav-link.active {
  background-color: var(--primary-light);
  color: var(--primary);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding-left: calc(1rem - 3px);
}

.nav-icon {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.nav-link:hover .nav-icon,
.nav-link.active .nav-icon {
  color: var(--primary);
}

.sidebar-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color-light);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
}

/* Mobile toggle button */
.sidebar-toggle-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  margin-right: 1rem;
}

/* Inline Audio Player Styling */
.table-audio-player {
  max-width: 220px;
  height: 32px;
  outline: none;
  border-radius: var(--radius-full);
}

/* Coming Soon Placeholders */
.coming-soon-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 5rem 2rem;
  max-width: 600px;
  margin: 4rem auto;
}

.coming-soon-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-lg);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-md);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.coming-soon-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.coming-soon-badge {
  background-color: var(--warning-bg);
  color: var(--warning-text);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
  display: inline-block;
}

.coming-soon-desc {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 2rem;
}

/* Responsive Overrides */
@media (max-width: 1024px) {
  .app-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    height: 100vh;
    transform: translateX(-100%);
    box-shadow: var(--shadow-xl);
    z-index: 1100;
  }
  
  .app-sidebar.open {
    transform: translateX(0);
  }
  
  .sidebar-toggle-btn {
    display: inline-flex;
  }
}

@media (max-width: 768px) {
  .main-content {
    padding: 1rem;
  }
  .metrics-grid {
    grid-template-columns: 1fr;
  }
  .card-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .table-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .toolbar-filters {
    flex-direction: column;
    align-items: stretch;
  }
  .filter-dropdown-group {
    width: 100%;
  }
  .form-select {
    width: 100%;
  }
  .audio-info-meta {
    grid-template-columns: 1fr;
  }
  .coming-soon-container {
    padding: 3rem 1rem;
    margin: 2rem auto;
  }
  .coming-soon-title {
    font-size: 1.5rem;
  }
}

/* Click to Call Bridging Styles */
.customer-cell {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.click2call-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background-color: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
  cursor: pointer;
  transition: all var(--transition-fast);
  padding: 0;
  flex-shrink: 0;
}

.click2call-btn:hover {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.2);
}

.click2call-btn:active {
  transform: scale(0.95);
}

/* calling loader / pulse animation */
.click2call-btn.calling {
  background-color: var(--warning-bg);
  color: var(--warning-text);
  border-color: var(--warning-text);
  cursor: wait;
  animation: pulse 1.5s infinite ease-in-out;
}

.click2call-btn.calling svg {
  animation: spin 1s infinite linear;
}

@keyframes pulse {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.4); }
  70% { transform: scale(1.05); box-shadow: 0 0 0 6px rgba(245, 158, 11, 0); }
  100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}