/* ============================================================
   1Pay — Premium Fintech Payment Platform UI
   Hand-crafted CSS Framework
   ============================================================ */

/* ----------------------------------------------------------
   1. Design Tokens (CSS Custom Properties)
   ---------------------------------------------------------- */
:root {
  /* Primary */
  --color-primary-50: #EEF2FF;
  --color-primary-100: #E0E7FF;
  --color-primary-200: #C7D2FE;
  --color-primary-300: #A5B4FC;
  --color-primary-400: #818CF8;
  --color-primary-500: #6366F1;
  --color-primary-600: #4F46E5;
  --color-primary-700: #4338CA;
  --color-primary-800: #3730A3;
  --color-primary-900: #312E81;

  /* Gray */
  --color-gray-50: #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;

  /* Semantic */
  --color-success: #10B981;
  --color-success-light: #ECFDF5;
  --color-success-dark: #065F46;
  --color-warning: #F59E0B;
  --color-warning-light: #FFFBEB;
  --color-warning-dark: #92400E;
  --color-error: #F43F5E;
  --color-error-light: #FFF1F2;
  --color-error-dark: #9F1239;
  --color-info: #0EA5E9;
  --color-info-light: #F0F9FF;
  --color-info-dark: #075985;

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing (4px increments) */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-base: 16px;
  --space-lg: 20px;
  --space-xl: 24px;
  --space-2xl: 32px;
  --space-3xl: 40px;
  --space-4xl: 48px;
  --space-5xl: 64px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.06);
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-float: 0 12px 28px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.06);

  /* Transitions */
  --transition-fast: 100ms ease;
  --transition-default: 150ms ease;
  --transition-slow: 300ms ease;

  /* Z-index */
  --z-dropdown: 10;
  --z-sticky: 20;
  --z-sidebar: 30;
  --z-header: 40;
  --z-modal: 50;
  --z-toast: 60;

  /* Sidebar */
  --sidebar-width: 260px;
  --sidebar-collapsed-width: 72px;
  --header-height: 64px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-gray-700);
  background-color: var(--color-gray-50);
}

img, svg, video, canvas {
  display: block;
  max-width: 100%;
}

a {
  color: var(--color-primary-500);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-700);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-gray-900);
}

::selection {
  background-color: var(--color-primary-100);
  color: var(--color-primary-900);
}

:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* ----------------------------------------------------------
   3. Typography
   ---------------------------------------------------------- */
.text-xs   { font-size: 12px; }
.text-sm   { font-size: 13px; }
.text-base { font-size: 14px; }
.text-md   { font-size: 16px; }
.text-lg   { font-size: 18px; }
.text-xl   { font-size: 20px; }
.text-2xl  { font-size: 24px; }
.text-3xl  { font-size: 28px; }
.text-4xl  { font-size: 32px; }
.text-5xl  { font-size: 36px; }

.font-medium    { font-weight: 500; }
.font-semibold  { font-weight: 600; }
.font-bold      { font-weight: 700; }

.text-primary   { color: var(--color-primary-500); }
.text-secondary { color: var(--color-gray-500); }
.text-muted     { color: var(--color-gray-400); }
.text-white     { color: #FFFFFF; }
.text-success   { color: var(--color-success); }
.text-error     { color: var(--color-error); }
.text-warning   { color: var(--color-warning); }

.font-mono { font-family: var(--font-mono); }

.tracking-tight { letter-spacing: -0.025em; }

.leading-tight   { line-height: 1.25; }
.leading-normal  { line-height: 1.6; }

/* ----------------------------------------------------------
   4. Layout
   ---------------------------------------------------------- */
.app-layout {
  display: block;
  min-height: 100vh;
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: #FFFFFF;
  border-right: 1px solid var(--color-gray-200);
  z-index: var(--z-sidebar);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  transition: width var(--transition-slow);
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: calc(var(--z-sidebar) - 1);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}

.sidebar-overlay.active {
  display: block;
}

.main-content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  transition: margin-left var(--transition-default);
}

.sidebar.collapsed ~ .main-content,
.sidebar.collapsed ~ * .main-content {
  margin-left: var(--sidebar-collapsed-width);
}

.main-header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  background: #FFFFFF;
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-xl);
  z-index: var(--z-header);
}

.page-content {
  padding: var(--space-xl) var(--space-2xl);
  max-width: 1400px;
  margin: 0 auto;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
}

.page-title {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-gray-900);
}

.page-subtitle {
  font-size: 14px;
  color: var(--color-gray-500);
  margin-top: var(--space-xs);
}

/* Footer */
.main-footer {
  padding: var(--space-xl) var(--space-2xl);
  text-align: center;
  font-size: 13px;
  color: var(--color-gray-400);
  border-top: 1px solid var(--color-gray-100);
}

/* ----------------------------------------------------------
   5. Grid System
   ---------------------------------------------------------- */
.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

.col-span-1 { grid-column: span 1; }
.col-span-2 { grid-column: span 2; }
.col-span-3 { grid-column: span 3; }
.col-span-4 { grid-column: span 4; }

/* ----------------------------------------------------------
   6. Cards
   ---------------------------------------------------------- */
.card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-card);
  padding: var(--space-xl);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-base);
  border-bottom: 1px solid var(--color-gray-100);
}

.card-title {
  font-weight: 600;
  font-size: 16px;
  color: var(--color-gray-900);
}

.card-body {
  padding-top: var(--space-base);
}

/* Stat Card */
.stat-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-card);
  padding: var(--space-xl);
  display: flex;
  align-items: flex-start;
  gap: var(--space-base);
}

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

.stat-card .stat-icon svg,
.stat-card .stat-icon i,
.stat-card .stat-icon ph-icon {
  width: 24px;
  height: 24px;
}

.stat-card .stat-content {
  flex: 1;
  min-width: 0;
}

.stat-card .stat-label {
  font-size: 13px;
  color: var(--color-gray-400);
  margin-bottom: var(--space-xs);
}

.stat-card .stat-value {
  font-weight: 700;
  font-size: 24px;
  font-family: var(--font-mono);
  color: var(--color-gray-900);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.stat-card .stat-trend {
  font-size: 12px;
  margin-top: var(--space-xs);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.stat-card .stat-trend.up {
  color: var(--color-success);
}

.stat-card .stat-trend.down {
  color: var(--color-error);
}

/* ----------------------------------------------------------
   7. Buttons
   ---------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  height: 40px;
  padding: 0 20px;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 14px;
  font-family: var(--font-body);
  line-height: 1;
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-default);
  user-select: none;
}

.btn-primary {
  background: var(--color-primary-500);
  color: #FFFFFF;
  box-shadow: 0 1px 2px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  background: var(--color-primary-600);
  box-shadow: 0 2px 4px rgba(99, 102, 241, 0.4);
}

.btn-primary:active {
  background: var(--color-primary-700);
}

.btn-secondary {
  background: transparent;
  color: var(--color-gray-700);
  border-color: var(--color-gray-200);
}

.btn-secondary:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-300);
}

.btn-secondary:active {
  background: var(--color-gray-100);
}

.btn-ghost {
  background: transparent;
  color: var(--color-primary-500);
}

.btn-ghost:hover {
  background: var(--color-primary-50);
}

.btn-ghost:active {
  background: var(--color-primary-100);
}

.btn-danger {
  background: var(--color-error);
  color: #FFFFFF;
  box-shadow: 0 1px 2px rgba(244, 63, 94, 0.3);
}

.btn-danger:hover {
  background: #E11D48;
  box-shadow: 0 2px 4px rgba(244, 63, 94, 0.4);
}

.btn-danger:active {
  background: #BE123C;
}

.btn-success {
  background: var(--color-success);
  color: #FFFFFF;
  box-shadow: 0 1px 2px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
  background: #059669;
  box-shadow: 0 2px 4px rgba(16, 185, 129, 0.4);
}

.btn-success:active {
  background: #047857;
}

/* Sizes */
.btn-sm {
  height: 32px;
  padding: 0 12px;
  font-size: 13px;
  border-radius: var(--radius-md);
}

.btn-lg {
  height: 48px;
  padding: 0 28px;
  font-size: 16px;
  border-radius: var(--radius-md);
}

/* Variants */
.btn-pill {
  border-radius: var(--radius-full);
}

.btn-icon {
  width: 40px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-icon.btn-sm {
  width: 32px;
}

.btn:disabled,
.btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-loading {
  position: relative;
  pointer-events: none;
}

.btn-loading::after {
  content: '';
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: var(--radius-full);
  animation: spin 0.6s linear infinite;
}

.btn-block {
  width: 100%;
}

/* ----------------------------------------------------------
   8. Forms
   ---------------------------------------------------------- */
.form-group {
  margin-bottom: var(--space-base);
}

.form-label {
  display: block;
  font-weight: 500;
  font-size: 13px;
  color: var(--color-gray-500);
  margin-bottom: 6px;
}

.form-input {
  display: block;
  width: 100%;
  height: 44px;
  padding: 0 14px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-gray-700);
  background: #FFFFFF;
  transition: border-color var(--transition-default), box-shadow var(--transition-default);
}

.form-input::placeholder {
  color: var(--color-gray-400);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px var(--color-primary-50);
}

.form-input:disabled {
  background: var(--color-gray-50);
  opacity: 0.7;
  cursor: not-allowed;
}

.form-input-icon {
  position: relative;
}

.form-input-icon .form-input {
  padding-left: 44px;
}

.form-input-icon .input-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-gray-400);
  display: flex;
  align-items: center;
  pointer-events: none;
}

.form-select {
  display: block;
  width: 100%;
  height: 44px;
  padding: 0 40px 0 14px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-gray-700);
  background: #FFFFFF url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%239CA3AF' viewBox='0 0 16 16'%3E%3Cpath d='M4.427 6.427l3.396 3.396a.25.25 0 00.354 0l3.396-3.396A.25.25 0 0011.396 6H4.604a.25.25 0 00-.177.427z'/%3E%3C/svg%3E") no-repeat right 14px center;
  appearance: none;
  cursor: pointer;
  transition: border-color var(--transition-default), box-shadow var(--transition-default);
}

.form-select:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px var(--color-primary-50);
}

.form-textarea {
  display: block;
  width: 100%;
  min-height: 100px;
  padding: 12px 14px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-gray-700);
  background: #FFFFFF;
  resize: vertical;
  transition: border-color var(--transition-default), box-shadow var(--transition-default);
}

.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px var(--color-primary-50);
}

.form-hint {
  font-size: 12px;
  color: var(--color-gray-400);
  margin-top: 4px;
}

.form-error {
  font-size: 12px;
  color: var(--color-error);
  margin-top: 4px;
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--color-error);
}

.form-input.error:focus,
.form-select.error:focus,
.form-textarea.error:focus {
  box-shadow: 0 0 0 3px var(--color-error-light);
}

/* Checkbox */
.form-checkbox {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  font-size: 14px;
  user-select: none;
}

.form-checkbox input[type="checkbox"] {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  background: #FFFFFF;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  position: relative;
}

.form-checkbox input[type="checkbox"]:checked {
  background: var(--color-primary-500);
  border-color: var(--color-primary-500);
}

.form-checkbox input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 2px;
  width: 5px;
  height: 9px;
  border: solid #FFFFFF;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.form-checkbox input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Radio */
.form-radio {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  font-size: 14px;
  user-select: none;
}

.form-radio input[type="radio"] {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-full);
  background: #FFFFFF;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  position: relative;
}

.form-radio input[type="radio"]:checked {
  border-color: var(--color-primary-500);
}

.form-radio input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-primary-500);
}

.form-radio input[type="radio"]:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-base);
}

/* ----------------------------------------------------------
   9. Tables
   ---------------------------------------------------------- */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
}

.table {
  width: 100%;
  border-collapse: collapse;
  min-width: 800px;
}

.table thead th {
  background: var(--color-gray-50);
  padding: 12px 16px;
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-400);
  text-align: left;
  border-bottom: 1px solid var(--color-gray-200);
  white-space: nowrap;
}

.table tbody td {
  padding: 12px 16px;
  font-size: 14px;
  color: var(--color-gray-700);
  border-bottom: 1px solid var(--color-gray-100);
  vertical-align: middle;
}

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

.table tbody tr:hover {
  background: var(--color-gray-50);
}

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

/* Table Mobile Card */
@media (max-width: 639px) {
  .table-mobile-card thead {
    display: none;
  }

  .table-mobile-card tbody {
    display: block;
  }

  .table-mobile-card tbody tr {
    display: block;
    padding: var(--space-base);
    margin-bottom: var(--space-sm);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    background: #FFFFFF;
  }

  .table-mobile-card tbody td {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--color-gray-100);
    text-align: right;
  }

  .table-mobile-card tbody td:last-child {
    border-bottom: none;
  }

  .table-mobile-card tbody td::before {
    content: attr(data-label);
    font-weight: 500;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-gray-400);
    text-align: left;
    margin-right: var(--space-base);
  }
}

/* ----------------------------------------------------------
   10. Badges / Status
   ---------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-weight: 500;
  font-size: 12px;
  line-height: 1.2;
  vertical-align: middle;
}

.badge-success {
  background: var(--color-success-light);
  color: var(--color-success-dark);
}

.badge-warning {
  background: var(--color-warning-light);
  color: var(--color-warning-dark);
}

.badge-error {
  background: var(--color-error-light);
  color: var(--color-error-dark);
}

.badge-info {
  background: var(--color-info-light);
  color: var(--color-info-dark);
}

.badge-pending {
  background: var(--color-gray-100);
  color: var(--color-gray-700);
}

.badge-dot::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  margin-right: 6px;
  flex-shrink: 0;
}

.badge-success.badge-dot::before { background: var(--color-success); }
.badge-warning.badge-dot::before { background: var(--color-warning); }
.badge-error.badge-dot::before   { background: var(--color-error); }
.badge-info.badge-dot::before    { background: var(--color-info); }
.badge-pending.badge-dot::before { background: var(--color-gray-400); }

.badge-sm {
  padding: 2px 8px;
  font-size: 11px;
}

/* ----------------------------------------------------------
   11. Modal
   ---------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-default), visibility var(--transition-default);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: #FFFFFF;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 480px;
  width: 90%;
  max-height: 85vh;
  overflow: auto;
  transform: scale(0.95);
  transition: transform var(--transition-default);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 24px 0;
}

.modal-title {
  font-weight: 600;
  font-size: 18px;
  color: var(--color-gray-900);
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-gray-400);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-600);
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  padding: 0 24px 24px;
}

/* ----------------------------------------------------------
   12. Toast
   ---------------------------------------------------------- */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.toast {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 16px;
  border-left: 4px solid var(--color-gray-300);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-width: 300px;
  max-width: 420px;
  animation: slideInRight var(--transition-slow) forwards;
}

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

.toast-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.toast-content {
  flex: 1;
  min-width: 0;
}

.toast-title {
  font-weight: 600;
  font-size: 14px;
  color: var(--color-gray-900);
}

.toast-message {
  font-size: 13px;
  color: var(--color-gray-500);
  margin-top: 2px;
}

.toast-dismiss {
  flex-shrink: 0;
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
}

.toast-dismiss:hover {
  color: var(--color-gray-600);
}

.toast-close {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  margin-left: auto;
}

.toast-close:hover {
  color: var(--color-gray-600);
  background: var(--color-gray-100);
}

/* ----------------------------------------------------------
   13. Sidebar Navigation
   ---------------------------------------------------------- */
.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 14px;
  color: var(--color-gray-700);
  transition: all var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
}

.nav-item:hover {
  background: var(--color-gray-50);
  color: var(--color-gray-900);
}

.nav-item.active {
  background: var(--color-primary-50);
  color: var(--color-primary-500);
}

.nav-item svg,
.nav-item .ph-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.nav-section {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-400);
  padding: 12px 12px 8px;
  font-weight: 600;
}

.nav-divider {
  height: 1px;
  background: var(--color-gray-200);
  margin: 8px 0;
}

.sidebar .sidebar-nav {
  padding: var(--space-sm) var(--space-md);
  flex: 1;
}

.sidebar .sidebar-logo {
  padding: 20px 16px;
  border-bottom: 1px solid var(--color-gray-100);
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar .sidebar-footer {
  padding: var(--space-md);
  border-top: 1px solid var(--color-gray-100);
}

/* ----------------------------------------------------------
   14. Bottom Navigation (Mobile)
   ---------------------------------------------------------- */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: #FFFFFF;
  border-top: 1px solid var(--color-gray-200);
  display: none;
  z-index: var(--z-header);
}

.bottom-nav-items {
  display: flex;
  justify-content: space-around;
  align-items: center;
  height: 100%;
}

.bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-size: 10px;
  font-weight: 500;
  color: var(--color-gray-400);
  text-decoration: none;
  padding: 4px 8px;
  transition: color var(--transition-fast);
}

.bottom-nav-item.active {
  color: var(--color-primary-500);
}

.bottom-nav-item svg {
  width: 22px;
  height: 22px;
}

/* ----------------------------------------------------------
   15. Pagination
   ---------------------------------------------------------- */
.pagination {
  display: flex;
  gap: 2px;
  align-items: center;
}

.pagination-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--color-gray-600);
  background: transparent;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
}

.pagination-btn:hover {
  background: var(--color-gray-100);
}

.pagination-btn.active {
  background: var(--color-primary-500);
  color: #FFFFFF;
}

.pagination-info {
  font-size: 13px;
  color: var(--color-gray-400);
  margin-left: var(--space-sm);
}

/* ----------------------------------------------------------
   16. Dropdown
   ---------------------------------------------------------- */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  background: #FFFFFF;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  padding: 4px;
  z-index: var(--z-dropdown);
  display: none;
}

.dropdown-menu.show {
  display: block;
  animation: fadeIn var(--transition-default) forwards;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--color-gray-700);
  cursor: pointer;
  transition: background var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.dropdown-item:hover {
  background: var(--color-gray-50);
}

.dropdown-item svg {
  width: 16px;
  height: 16px;
  color: var(--color-gray-400);
  flex-shrink: 0;
}

.dropdown-item.danger {
  color: var(--color-error);
}

.dropdown-item.danger svg {
  color: var(--color-error);
}

.dropdown-divider {
  height: 1px;
  background: var(--color-gray-100);
  margin: 4px 0;
}

/* ----------------------------------------------------------
   17. Tabs
   ---------------------------------------------------------- */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--color-gray-200);
}

.tab {
  padding: 12px 20px;
  font-weight: 500;
  font-size: 14px;
  color: var(--color-gray-500);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  white-space: nowrap;
}

.tab:hover {
  color: var(--color-gray-700);
}

.tab.active {
  color: var(--color-primary-500);
  border-bottom-color: var(--color-primary-500);
}

/* Pill Tabs */
.tab-pills {
  display: flex;
  gap: 8px;
  background: var(--color-gray-100);
  padding: 4px;
  border-radius: var(--radius-md);
}

.tab-pills .tab {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  border-bottom: none;
  color: var(--color-gray-500);
}

.tab-pills .tab:hover {
  color: var(--color-gray-700);
}

.tab-pills .tab.active {
  background: #FFFFFF;
  color: var(--color-primary-500);
  box-shadow: var(--shadow-sm);
}

/* ----------------------------------------------------------
   18. Search Input
   ---------------------------------------------------------- */
.search-input {
  position: relative;
}

.search-input input {
  display: block;
  width: 100%;
  height: 44px;
  padding: 0 80px 0 44px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-gray-700);
  background: #FFFFFF;
  transition: border-color var(--transition-default), box-shadow var(--transition-default);
}

.search-input input::placeholder {
  color: var(--color-gray-400);
}

.search-input input:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px var(--color-primary-50);
}

.search-input .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-gray-400);
  display: flex;
  align-items: center;
  pointer-events: none;
}

.search-input .search-icon svg {
  width: 18px;
  height: 18px;
}

.search-input .kbd {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-gray-100);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--color-gray-400);
  border: 1px solid var(--color-gray-200);
  pointer-events: none;
}

/* ----------------------------------------------------------
   19. Utility Classes
   ---------------------------------------------------------- */
/* Flex */
.flex        { display: flex; }
.flex-col    { display: flex; flex-direction: column; }
.flex-wrap   { flex-wrap: wrap; }
.items-start   { align-items: flex-start; }
.items-center  { align-items: center; }
.items-end     { align-items: flex-end; }
.items-stretch { align-items: stretch; }
.justify-start   { justify-content: flex-start; }
.justify-center  { justify-content: center; }
.justify-end     { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.flex-1 { flex: 1; }
.flex-shrink-0 { flex-shrink: 0; }

/* Gap */
.gap-1  { gap: var(--space-xs); }
.gap-2  { gap: var(--space-sm); }
.gap-3  { gap: var(--space-md); }
.gap-4  { gap: var(--space-base); }
.gap-5  { gap: var(--space-xl); }
.gap-6  { gap: var(--space-2xl); }

/* Padding */
.p-0  { padding: 0; }
.p-1  { padding: var(--space-xs); }
.p-2  { padding: var(--space-sm); }
.p-3  { padding: var(--space-md); }
.p-4  { padding: var(--space-base); }
.p-5  { padding: var(--space-xl); }
.p-6  { padding: var(--space-2xl); }

.px-0  { padding-left: 0; padding-right: 0; }
.px-1  { padding-left: var(--space-xs); padding-right: var(--space-xs); }
.px-2  { padding-left: var(--space-sm); padding-right: var(--space-sm); }
.px-3  { padding-left: var(--space-md); padding-right: var(--space-md); }
.px-4  { padding-left: var(--space-base); padding-right: var(--space-base); }
.px-5  { padding-left: var(--space-xl); padding-right: var(--space-xl); }
.px-6  { padding-left: var(--space-2xl); padding-right: var(--space-2xl); }

.py-0  { padding-top: 0; padding-bottom: 0; }
.py-1  { padding-top: var(--space-xs); padding-bottom: var(--space-xs); }
.py-2  { padding-top: var(--space-sm); padding-bottom: var(--space-sm); }
.py-3  { padding-top: var(--space-md); padding-bottom: var(--space-md); }
.py-4  { padding-top: var(--space-base); padding-bottom: var(--space-base); }
.py-5  { padding-top: var(--space-xl); padding-bottom: var(--space-xl); }
.py-6  { padding-top: var(--space-2xl); padding-bottom: var(--space-2xl); }

.pt-0 { padding-top: 0; }
.pt-1 { padding-top: var(--space-xs); }
.pt-2 { padding-top: var(--space-sm); }
.pt-3 { padding-top: var(--space-md); }
.pt-4 { padding-top: var(--space-base); }
.pt-5 { padding-top: var(--space-xl); }
.pt-6 { padding-top: var(--space-2xl); }

.pb-0 { padding-bottom: 0; }
.pb-1 { padding-bottom: var(--space-xs); }
.pb-2 { padding-bottom: var(--space-sm); }
.pb-3 { padding-bottom: var(--space-md); }
.pb-4 { padding-bottom: var(--space-base); }
.pb-5 { padding-bottom: var(--space-xl); }
.pb-6 { padding-bottom: var(--space-2xl); }

.pl-0 { padding-left: 0; }
.pl-1 { padding-left: var(--space-xs); }
.pl-2 { padding-left: var(--space-sm); }
.pl-3 { padding-left: var(--space-md); }
.pl-4 { padding-left: var(--space-base); }
.pl-5 { padding-left: var(--space-xl); }
.pl-6 { padding-left: var(--space-2xl); }

.pr-0 { padding-right: 0; }
.pr-1 { padding-right: var(--space-xs); }
.pr-2 { padding-right: var(--space-sm); }
.pr-3 { padding-right: var(--space-md); }
.pr-4 { padding-right: var(--space-base); }
.pr-5 { padding-right: var(--space-xl); }
.pr-6 { padding-right: var(--space-2xl); }

/* Margin */
.m-0       { margin: 0; }
.mx-auto   { margin-left: auto; margin-right: auto; }
.ml-auto   { margin-left: auto; }
.mr-auto   { margin-right: auto; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-xs); }
.mt-2 { margin-top: var(--space-sm); }
.mt-3 { margin-top: var(--space-md); }
.mt-4 { margin-top: var(--space-base); }
.mt-5 { margin-top: var(--space-xl); }
.mt-6 { margin-top: var(--space-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-xs); }
.mb-2 { margin-bottom: var(--space-sm); }
.mb-3 { margin-bottom: var(--space-md); }
.mb-4 { margin-bottom: var(--space-base); }
.mb-5 { margin-bottom: var(--space-xl); }
.mb-6 { margin-bottom: var(--space-2xl); }

.ml-0 { margin-left: 0; }
.ml-1 { margin-left: var(--space-xs); }
.ml-2 { margin-left: var(--space-sm); }
.ml-3 { margin-left: var(--space-md); }
.ml-4 { margin-left: var(--space-base); }
.ml-5 { margin-left: var(--space-xl); }
.ml-6 { margin-left: var(--space-2xl); }

.mr-0 { margin-right: 0; }
.mr-1 { margin-right: var(--space-xs); }
.mr-2 { margin-right: var(--space-sm); }
.mr-3 { margin-right: var(--space-md); }
.mr-4 { margin-right: var(--space-base); }
.mr-5 { margin-right: var(--space-xl); }
.mr-6 { margin-right: var(--space-2xl); }

/* Sizing */
.w-full { width: 100%; }
.h-full { height: 100%; }
.w-screen { width: 100vw; }
.h-screen { height: 100vh; }
.min-w-0 { min-width: 0; }

/* Display */
.hidden   { display: none; }
.block    { display: block; }
.inline-flex { display: inline-flex; }
.inline-block { display: inline-block; }

/* Border Radius */
.rounded      { border-radius: var(--radius-md); }
.rounded-sm   { border-radius: var(--radius-sm); }
.rounded-lg   { border-radius: var(--radius-lg); }
.rounded-xl   { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto   { overflow: auto; }
.overflow-scroll { overflow: scroll; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed    { position: fixed; }
.sticky   { position: sticky; }

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

/* Truncate */
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

/* Separator */
.divider {
  height: 1px;
  background: var(--color-gray-200);
  border: none;
  margin: var(--space-base) 0;
}

/* Pointer */
.cursor-pointer { cursor: pointer; }
.pointer-events-none { pointer-events: none; }
.select-none { user-select: none; }

/* ----------------------------------------------------------
   20. Animations
   ---------------------------------------------------------- */
@keyframes slideInUp {
  from {
    transform: translateY(8px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.animate-fadeIn        { animation: fadeIn var(--transition-slow) forwards; }
.animate-slideInRight  { animation: slideInRight var(--transition-slow) forwards; }
.animate-slideInUp     { animation: slideInUp var(--transition-slow) forwards; }

/* ----------------------------------------------------------
   21. Skeleton Loading
   ---------------------------------------------------------- */
.skeleton-text,
.skeleton-text-sm,
.skeleton-title,
.skeleton-circle,
.skeleton-card {
  background: linear-gradient(90deg, var(--color-gray-100) 25%, var(--color-gray-200) 50%, var(--color-gray-100) 75%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

.skeleton-text {
  height: 14px;
}

.skeleton-text-sm {
  height: 12px;
  width: 60%;
}

.skeleton-title {
  height: 20px;
  width: 40%;
}

.skeleton-circle {
  border-radius: var(--radius-full);
}

.skeleton-card {
  height: 120px;
  border-radius: var(--radius-lg);
}

@keyframes skeleton-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ----------------------------------------------------------
   22. Responsive Breakpoints
   ---------------------------------------------------------- */
/* Mobile (< 640px) */
@media (max-width: 639px) {
  .app-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
  }

  .sidebar.mobile-open,
  .sidebar.open {
    transform: translateX(0);
    display: flex;
    box-shadow: var(--shadow-xl);
  }

  .main-content {
    margin-left: 0;
    padding-bottom: 64px;
  }

  .page-content {
    padding: var(--space-base);
  }

  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-base);
  }

  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }

  .col-span-2,
  .col-span-3,
  .col-span-4 {
    grid-column: span 1;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .bottom-nav {
    display: flex;
  }

  .modal {
    width: 95%;
    max-height: 90vh;
  }

  .modal-header,
  .modal-body,
  .modal-footer {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }

  .toast-container {
    left: 16px;
    right: 16px;
    bottom: 80px;
  }

  .toast {
    min-width: auto;
    width: 100%;
  }

  .desktop-only {
    display: none !important;
  }

  .mobile-only {
    display: block !important;
  }

  .tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .tabs::-webkit-scrollbar {
    display: none;
  }

  .tab {
    padding: 10px 14px;
    font-size: 13px;
  }

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

/* Tablet (640px – 1023px) */
@media (min-width: 640px) and (max-width: 1023px) {
  .grid-cols-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .col-span-3 {
    grid-column: span 2;
  }

  .col-span-4 {
    grid-column: span 2;
  }
}

/* Tablet & Below (< 1024px) */
@media (max-width: 1023px) {
  .app-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
  }

  .sidebar.mobile-open,
  .sidebar.open {
    transform: translateX(0);
    display: flex;
    box-shadow: var(--shadow-xl);
  }

  .main-content {
    margin-left: 0;
  }

  .lg-hidden {
    display: none;
  }

  .lg-only {
    display: block;
  }
}

/* Small screens (>= 640px) */
@media (min-width: 640px) {
  .sm-hidden {
    display: none !important;
  }

  .sm-only {
    display: block;
  }
}

/* Desktop (>= 1024px) */
@media (min-width: 1024px) {
  .lg-hidden {
    display: none !important;
  }

  .lg-only {
    display: none;
  }

  .desktop-only {
    display: block;
  }

  .mobile-only {
    display: none !important;
  }
}

/* ----------------------------------------------------------
   23. Dark Mode
   ---------------------------------------------------------- */
body.dark {
  --color-gray-50: #111827;
  --color-gray-100: #1F2937;
  --color-gray-200: #374151;
  --color-gray-300: #4B5563;
  --color-gray-400: #6B7280;
  --color-gray-500: #9CA3AF;
  --color-gray-600: #D1D5DB;
  --color-gray-700: #E5E7EB;
  --color-gray-800: #F3F4F6;
  --color-gray-900: #F9FAFB;

  color: #E5E7EB;
  background-color: #0F172A;
}

body.dark .card,
body.dark .stat-card {
  background: #1E293B;
  border-color: #334155;
}

body.dark .main-header {
  background: #1E293B;
  border-color: #334155;
}

body.dark .sidebar {
  background: #1E293B;
  border-color: #334155;
}

body.dark .form-input,
body.dark .form-select,
body.dark .form-textarea,
body.dark .search-input input {
  background: #0F172A;
  border-color: #334155;
  color: #E5E7EB;
}

body.dark .form-input::placeholder,
body.dark .form-select::placeholder,
body.dark .form-textarea::placeholder {
  color: #6B7280;
}

body.dark .table thead th {
  background: #1E293B;
  border-color: #334155;
}

body.dark .table tbody td {
  border-color: #1E293B;
  color: #D1D5DB;
}

body.dark .table tbody tr:hover {
  background: #1E293B;
}

body.dark .dropdown-menu {
  background: #1E293B;
  border-color: #334155;
}

body.dark .dropdown-item:hover {
  background: #334155;
}

body.dark .modal {
  background: #1E293B;
}

body.dark .toast {
  background: #1E293B;
}

body.dark .tab-pills {
  background: #1E293B;
}

body.dark .tab-pills .tab.active {
  background: #334155;
}

body.dark .btn-secondary {
  border-color: #4B5563;
}

body.dark .btn-secondary:hover {
  background: #334155;
}

body.dark .modal-close:hover {
  background: #334155;
}

body.dark .bottom-nav {
  background: #1E293B;
  border-color: #334155;
}

body.dark .badge-pending {
  background: #374151;
  color: #D1D5DB;
}

body.dark .table-container {
  border-color: #334155;
}

body.dark .search-input .kbd {
  background: #334155;
  border-color: #4B5563;
}

body.dark .pagination-btn:hover {
  background: #334155;
}

body.dark .skeleton {
  background: linear-gradient(90deg,
    #334155 25%,
    #1E293B 50%,
    #334155 75%
  );
  background-size: 200% 100%;
}

body.dark .error-code { color: var(--color-gray-300); }
body.dark .main-footer { border-color: var(--color-gray-700); }
body.dark .sidebar-logo-text { color: var(--color-gray-100); }
body.dark .header-search-trigger { background: var(--color-gray-700); }
body.dark .bottom-nav-create { background: var(--color-gray-700); }

/* ----------------------------------------------------------
   24. Missing Utility Classes
   ---------------------------------------------------------- */
.text-mono  { font-family: var(--font-mono); }
.fw-500     { font-weight: 500; }
.fw-600     { font-weight: 600; }
.fw-700     { font-weight: 700; }
.uppercase  { text-transform: uppercase; }
.tracking-wide { letter-spacing: 0.05em; }

.btn-xs {
  height: 24px;
  padding: 0 8px;
  font-size: 11px;
  border-radius: var(--radius-sm);
}

.w-fit { width: fit-content; }
.h-fit { height: fit-content; }
.min-h-0 { min-height: 0; }

/* Layout Utilities */
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.flex-start {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.stack-sm {
  display: flex;
  flex-direction: column;
  gap: var(--space-base);
}

.stack-xs {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* Common card layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.grid-2-1 {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-xl);
}

.grid-1-2 {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-xl);
}

/* Responsive grid layouts */
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4, .grid-2-1, .grid-1-2 {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 769px) and (max-width: 1023px) {
  .grid-3, .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-2-1, .grid-1-2 {
    grid-template-columns: 1fr;
  }
}

/* ----------------------------------------------------------
   25. Responsive Grid Breakpoints (Tailwind-style)
   ---------------------------------------------------------- */
@media (min-width: 640px) {
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .sm\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .sm\:flex-row    { flex-direction: row; }
  .sm\:hidden      { display: none !important; }
  .sm\:block       { display: block; }
}

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
  .md\:flex-row    { flex-direction: row; }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
  .lg\:grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
  .lg\:flex-row    { flex-direction: row; }
  .lg\:hidden      { display: none !important; }
  .lg\:block       { display: block; }
}

/* ----------------------------------------------------------
   26. Sidebar Component Styles
   ---------------------------------------------------------- */
.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border-bottom: 1px solid var(--color-gray-100);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.sidebar-logo-text {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 800;
  color: var(--color-gray-900);
}

.sidebar-close {
  display: none;
  width: 32px;
  height: 32px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-gray-400);
  transition: all var(--transition-fast);
}

.sidebar-close:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-600);
}

.nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-merchant {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background var(--transition-fast);
}

.sidebar-merchant:hover {
  background: var(--color-gray-50);
}

.sidebar-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--color-primary-100);
  color: var(--color-primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

.sidebar-merchant-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
}

.sidebar-merchant-name {
  font-weight: 600;
  font-size: 13px;
  color: var(--color-gray-800);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-merchant-email {
  font-size: 12px;
  color: var(--color-gray-400);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ----------------------------------------------------------
   27. Header Component Styles
   ---------------------------------------------------------- */
.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-sidebar-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-gray-500);
  transition: all var(--transition-fast);
}

.header-sidebar-toggle:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-700);
}

.header-sidebar-toggle-fallback {
  display: none;
  font-size: 20px;
  line-height: 1;
}

ph-icon:not(:defined) ~ .header-sidebar-toggle-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-search-trigger {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  color: var(--color-gray-400);
  font-size: 13px;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: #fff;
  min-width: 200px;
}

.header-search-trigger:hover {
  border-color: var(--color-gray-300);
  background: var(--color-gray-50);
}

.header-search-placeholder {
  flex: 1;
  text-align: left;
}

.header-search-kbd {
  background: var(--color-gray-100);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--color-gray-400);
  border: 1px solid var(--color-gray-200);
  line-height: 1;
}

.header-icon-btn {
  position: relative;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-gray-500);
  transition: all var(--transition-fast);
}

.header-icon-btn:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-700);
}

.header-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  background: var(--color-error);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.header-avatar-btn {
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}

.header-avatar {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background: var(--color-primary-100);
  color: var(--color-primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
  transition: box-shadow var(--transition-fast);
}

.header-avatar-btn:hover .header-avatar {
  box-shadow: 0 0 0 2px var(--color-primary-200);
}

.header-dropdown {
  position: relative;
}

.header-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: #FFFFFF;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 240px;
  padding: 8px;
  z-index: var(--z-dropdown);
}

.dropdown-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
}

.dropdown-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-primary-100);
  color: var(--color-primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
  flex-shrink: 0;
}

.dropdown-user {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.dropdown-name {
  font-weight: 600;
  font-size: 14px;
  color: var(--color-gray-900);
}

.dropdown-email {
  font-size: 12px;
  color: var(--color-gray-400);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dropdown-item-danger {
  color: var(--color-error) !important;
}

.dropdown-item-danger:hover {
  background: var(--color-error-light) !important;
  color: var(--color-error) !important;
}

/* ----------------------------------------------------------
   28. Search Modal
   ---------------------------------------------------------- */
.search-modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
}

.search-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.search-modal-content {
  position: relative;
  background: #FFFFFF;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 90%;
  max-width: 560px;
  max-height: 60vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.search-input-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-gray-200);
  color: var(--color-gray-400);
}

.search-input-wrapper .search-input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 15px;
  color: var(--color-gray-700);
  background: transparent;
  padding: 0;
  height: auto;
}

.search-input-wrapper .search-input::placeholder {
  color: var(--color-gray-400);
}

.search-esc {
  background: var(--color-gray-100);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--color-gray-400);
  border: 1px solid var(--color-gray-200);
  flex-shrink: 0;
}

.search-results {
  overflow-y: auto;
  padding: 8px;
}

.search-section {
  padding: 4px 0;
}

.search-section-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-400);
  padding: 8px 12px 4px;
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  color: var(--color-gray-700);
  font-size: 14px;
  text-decoration: none;
  transition: background var(--transition-fast);
}

.search-result-item:hover {
  background: var(--color-gray-50);
  color: var(--color-gray-900);
}

/* ----------------------------------------------------------
   29. Bottom Nav Mobile Create Button
   ---------------------------------------------------------- */
.bottom-nav-create {
  position: relative;
  top: -12px;
}

.bottom-nav-create ph-icon,
.bottom-nav-create svg {
  width: 48px !important;
  height: 48px !important;
  background: var(--color-primary-500);
  color: #fff;
  border-radius: var(--radius-full);
  padding: 10px;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.4);
}

/* ----------------------------------------------------------
   30. Mobile Responsive Improvements
   ---------------------------------------------------------- */
@media (max-width: 639px) {
  .sidebar-close {
    display: flex;
  }

  .header-sidebar-toggle {
    display: flex;
  }

  .header-search-trigger {
    display: none;
  }

  .header-search-kbd {
    display: none;
  }

  .main-header {
    padding: 0 var(--space-base);
  }

  .stat-card .stat-value {
    font-size: 20px;
  }

  .page-title {
    font-size: 20px;
  }
}

/* Tablet & Below (< 1024px) */
@media (max-width: 1023px) {
  .sidebar-close {
    display: flex;
  }

  .header-sidebar-toggle {
    display: flex;
  }
}

/* Desktop (>= 1024px) */
@media (min-width: 1024px) {
  .sidebar-close {
    display: none;
  }

  .header-sidebar-toggle {
    display: none;
  }

  .header-search-trigger {
    display: flex;
  }
}

/* Mobile: Sidebar open state (works with both .mobile-open and .open) */
@media (max-width: 1023px) {
  .sidebar.mobile-open,
  .sidebar.open {
    transform: translateX(0);
    display: flex;
    box-shadow: var(--shadow-xl);
  }
}

/* ----------------------------------------------------------
   31. Responsive Detail Layouts
   ---------------------------------------------------------- */
@media (max-width: 768px) {
  .grid {
    gap: var(--space-base);
  }
}

/* ----------------------------------------------------------
   32. Color Tokens — Indigo Aliases
   ---------------------------------------------------------- */
:root {
  --color-indigo-50: var(--color-primary-50);
  --color-indigo-100: var(--color-primary-100);
  --color-indigo-200: var(--color-primary-200);
  --color-indigo-300: var(--color-primary-300);
  --color-indigo-400: var(--color-primary-400);
  --color-indigo-500: var(--color-primary-500);
  --color-indigo-600: var(--color-primary-600);
  --color-indigo-700: var(--color-primary-700);
  --color-error-500: var(--color-error);
}

/* ----------------------------------------------------------
   33. Alert Component
   ---------------------------------------------------------- */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--radius-lg);
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: var(--space-base);
}
.alert-warning {
  background: var(--color-warning-light);
  color: var(--color-warning-dark);
  border: 1px solid rgba(245, 158, 11, 0.2);
}
.alert-danger {
  background: var(--color-error-light);
  color: var(--color-error-dark);
  border: 1px solid rgba(244, 63, 94, 0.2);
}
.alert-success {
  background: var(--color-success-light);
  color: var(--color-success-dark);
  border: 1px solid rgba(16, 185, 129, 0.2);
}
.alert-info {
  background: var(--color-info-light);
  color: var(--color-info-dark);
  border: 1px solid rgba(14, 165, 233, 0.2);
}

/* ----------------------------------------------------------
   34. Stat Icon Color Variants
   ---------------------------------------------------------- */
.stat-icon-primary { background: var(--color-primary-50); color: var(--color-primary-600); }
.stat-icon-success { background: var(--color-success-light); color: var(--color-success); }
.stat-icon-warning { background: var(--color-warning-light); color: var(--color-warning); }
.stat-icon-info    { background: var(--color-info-light); color: var(--color-info); }
.stat-icon-danger  { background: var(--color-error-light); color: var(--color-error); }

/* ----------------------------------------------------------
   35. Card Heading
   ---------------------------------------------------------- */
.card-heading {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-gray-900);
  margin: 0 0 var(--space-base);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* ----------------------------------------------------------
   36. Radio Card
   ---------------------------------------------------------- */
.radio-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-default);
  background: #FFFFFF;
}
.radio-card:hover {
  border-color: var(--color-primary-300);
  background: var(--color-primary-50);
}
.radio-card.selected,
.radio-card.active {
  border-color: var(--color-primary-500);
  background: var(--color-primary-50);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}
.radio-card input[type="radio"] {
  appearance: none;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-full);
  flex-shrink: 0;
  position: relative;
  transition: all var(--transition-fast);
}
.radio-card input[type="radio"]:checked {
  border-color: var(--color-primary-500);
}
.radio-card input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: var(--color-primary-500);
}
.radio-card-label {
  font-weight: 500;
  font-size: 14px;
  color: var(--color-gray-700);
}
.radio-card-desc {
  font-size: 12px;
  color: var(--color-gray-400);
  margin-top: 2px;
}

/* ----------------------------------------------------------
   37. Checkbox Card
   ---------------------------------------------------------- */
.checkbox-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-default);
  background: #FFFFFF;
}
.checkbox-card:hover {
  border-color: var(--color-primary-300);
}
.checkbox-card.selected,
.checkbox-card.active {
  border-color: var(--color-primary-500);
  background: var(--color-primary-50);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}
.checkbox-card input[type="checkbox"] {
  appearance: none;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  position: relative;
  transition: all var(--transition-fast);
  background: #FFFFFF;
}
.checkbox-card input[type="checkbox"]:checked {
  background: var(--color-primary-500);
  border-color: var(--color-primary-500);
}
.checkbox-card input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 2px;
  width: 6px;
  height: 10px;
  border: solid #FFFFFF;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

/* ----------------------------------------------------------
   38. Toggle Switch
   ---------------------------------------------------------- */
.toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}
.toggle-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.toggle-track {
  width: 44px;
  height: 24px;
  background: var(--color-gray-300);
  border-radius: var(--radius-full);
  transition: background var(--transition-default);
  position: relative;
  flex-shrink: 0;
}
.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: #FFFFFF;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-default);
}
.toggle-input:checked + .toggle-track {
  background: var(--color-primary-500);
}
.toggle-input:checked + .toggle-track .toggle-thumb {
  transform: translateX(20px);
}
.toggle-input:focus-visible + .toggle-track {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}
.toggle-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-gray-700);
}

/* ----------------------------------------------------------
   39. Form Input with Currency/Phone Prefix
   ---------------------------------------------------------- */
.form-input-currency {
  display: block;
  width: 100%;
  height: 52px;
  padding: 0 14px 0 56px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-gray-700);
  background: #FFFFFF;
  transition: border-color var(--transition-default), box-shadow var(--transition-default);
}
.form-input-currency:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px var(--color-primary-50);
}
.form-input-prefix {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-gray-400);
  pointer-events: none;
  z-index: 1;
}
.form-input-wrapper {
  position: relative;
}

/* ----------------------------------------------------------
   40. Fee Calculator
   ---------------------------------------------------------- */
.fee-calculator {
  margin-top: var(--space-lg);
  padding: var(--space-base) var(--space-lg);
  background: var(--color-gray-50);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
}
.fee-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
}
.fee-row + .fee-row {
  border-top: 1px solid var(--color-gray-200);
  padding-top: var(--space-sm);
}
.fee-label {
  font-size: 13px;
  color: var(--color-gray-500);
}
.fee-value {
  font-weight: 600;
  font-size: 14px;
  color: var(--color-gray-700);
}
.fee-total {
  font-weight: 700;
  font-size: 16px;
  color: var(--color-gray-900);
}

/* ----------------------------------------------------------
   41. Skip to Content Link
   ---------------------------------------------------------- */
.skip-to-content {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 9999;
  padding: 12px 24px;
  background: var(--color-primary-500);
  color: #FFFFFF;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: top var(--transition-fast);
}
.skip-to-content:focus {
  top: 16px;
}

/* ----------------------------------------------------------
   42. Responsive Chart Container
   ---------------------------------------------------------- */
.chart-container {
  position: relative;
  width: 100%;
}
.chart-container canvas {
  width: 100% !important;
  height: auto !important;
}

/* ----------------------------------------------------------
   43. Mobile Sticky Submit Button
   ---------------------------------------------------------- */
@media (max-width: 768px) {
  .mobile-sticky-submit {
    position: fixed;
    bottom: 72px;
    left: 0;
    right: 0;
    padding: var(--space-base);
    background: #FFFFFF;
    border-top: 1px solid var(--color-gray-200);
    z-index: var(--z-sticky);
    display: flex;
    gap: var(--space-sm);
  }
  .mobile-sticky-submit .btn {
    flex: 1;
    height: 48px;
  }
}

/* ================================================
   Premium Micro-Interactions & Polish
   ================================================ */

/* Card hover lift */
.stat-card { transition: transform var(--transition-default), box-shadow var(--transition-default); }
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

/* Table row hover */
table tbody tr { transition: background-color var(--transition-fast); }
table tbody tr:hover { background-color: var(--color-gray-50); }

/* Button press effect */
.btn:active { transform: scale(0.97); }
.btn-primary:active { background: var(--color-primary-700); }

/* Focus ring for accessibility */
.btn:focus-visible,
.form-input:focus-visible,
.form-select:focus-visible,
.form-textarea:focus-visible,
.nav-item:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Smooth page transitions */
.page-content {
  animation: fadeIn 0.2s ease-out;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

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

/* Nav item indicator */
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 24px;
  background: var(--color-primary-500);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* Badge pulse for notifications */
.header-badge[data-count]:empty::after,
.bottom-nav-badge::after {
  content: '';
  position: absolute;
  top: -2px;
  right: -2px;
  width: 8px;
  height: 8px;
  background: var(--color-error);
  border-radius: var(--radius-full);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Loading skeleton shimmer */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skeleton {
  background: linear-gradient(90deg, var(--color-gray-100) 25%, var(--color-gray-200) 50%, var(--color-gray-100) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

/* ----------------------------------------------------------
   43b. Profile & Settings Styles
   ---------------------------------------------------------- */
[x-cloak] { display: none !important; }
input[type="checkbox"]:checked ~ .toggle-track,
.toggle-active { background: var(--color-primary-500) !important; }
input[type="checkbox"]:checked ~ .toggle-thumb,
input[type="checkbox"]:checked + .toggle-track + .toggle-thumb { transform: translateX(20px); }
label.relative input[type="checkbox"]:checked ~ .toggle-track { background: var(--color-primary-500) !important; }
label.relative input[type="checkbox"]:checked ~ .toggle-thumb { transform: translateX(20px); }

/* ================================================
   Empty State Component
   ================================================ */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 48px 24px;
  min-height: 280px;
}
.empty-state-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  background: var(--color-gray-100);
  margin-bottom: var(--space-lg);
  color: var(--color-gray-400);
}
.empty-state-icon ph-icon {
  width: 40px;
  height: 40px;
}
.empty-state-title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-gray-900);
  margin: 0 0 var(--space-sm);
}
.empty-state-text {
  font-size: 14px;
  color: var(--color-gray-500);
  max-width: 360px;
  line-height: 1.6;
  margin: 0 0 var(--space-lg);
}

/* ================================================
   Error Pages
   ================================================ */
.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 60vh;
  padding: 48px 24px;
}
.error-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 96px;
  height: 96px;
  border-radius: var(--radius-full);
  background: var(--color-gray-100);
  margin-bottom: var(--space-lg);
  color: var(--color-gray-400);
}
.error-icon ph-icon {
  width: 48px;
  height: 48px;
}
.error-code {
  font-family: var(--font-heading);
  font-size: 72px;
  font-weight: 800;
  color: var(--color-gray-200);
  line-height: 1;
  margin: 0 0 var(--space-sm);
}
.error-title {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-gray-900);
  margin: 0 0 var(--space-sm);
}
.error-desc {
  font-size: 15px;
  color: var(--color-gray-500);
  max-width: 400px;
  line-height: 1.6;
  margin: 0 0 var(--space-xl);
}
.error-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
}

/* ================================================
   Reduced Motion Support
   ================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ================================================
   Focus Visible — Extended Coverage
   ================================================ */
.tab:focus-visible,
.badge:focus-visible,
.dropdown-item:focus-visible,
.pagination-btn:focus-visible,
.toast-close:focus-visible,
.modal-close:focus-visible,
.radio-card:focus-within,
.checkbox-card:focus-within,
.nav-item:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* ================================================
   Missing Component Classes
   ================================================ */

/* Page Header – sub-parts only (base .page-header/.page-title/.page-subtitle kept in §4) */
.page-header-left {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}
.page-header-right {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* Filter Bar */
.filter-bar {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-base);
  background: #FFFFFF;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}
.filter-bar-search {
  position: relative;
  flex: 1;
  min-width: 200px;
}
.filter-bar-search .form-input {
  padding-left: 36px;
}
.filter-bar-search ph-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-gray-400);
}
.filter-bar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* Table Pagination */
.table-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-base) 0;
  flex-wrap: wrap;
  gap: var(--space-sm);
}
.table-pagination-info {
  font-size: 13px;
  color: var(--color-gray-500);
}
.table-pagination-links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

/* Table Responsive */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* Badge Gray + Danger */
.badge-gray {
  background: var(--color-gray-100);
  color: var(--color-gray-700);
}
.badge-gray.dot::before {
  background: var(--color-gray-400);
}
.badge-danger {
  background: var(--color-error-light);
  color: var(--color-error-dark);
}
.badge-danger.dot::before {
  background: var(--color-error);
}

/* Tab Button */
.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-gray-500);
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-default);
}
.tab-btn:hover {
  color: var(--color-gray-700);
  background: var(--color-gray-50);
}
.tab-btn.active {
  color: var(--color-primary-600);
  background: var(--color-primary-50);
}

/* Avatar */
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-primary-100);
  color: var(--color-primary-600);
  font-weight: 600;
  font-size: 16px;
  flex-shrink: 0;
  overflow: hidden;
}
.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.avatar-sm {
  width: 32px;
  height: 32px;
  font-size: 13px;
}
.avatar-lg {
  width: 56px;
  height: 56px;
  font-size: 20px;
}

/* Text Danger */
.text-danger {
  color: var(--color-error) !important;
}

/* Detail Item */
.detail-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
}
.detail-item + .detail-item {
  border-top: 1px solid var(--color-gray-100);
}
.detail-label {
  font-size: 13px;
  color: var(--color-gray-500);
  min-width: 120px;
  flex-shrink: 0;
}
.detail-value {
  font-size: 14px;
  color: var(--color-gray-700);
  font-weight: 500;
}

/* Table Row Clickable */
.table-row-clickable {
  cursor: pointer;
  transition: background-color var(--transition-fast);
}
.table-row-clickable:hover {
  background-color: var(--color-gray-50);
}

/* Card Body Flush */
.card-body-flush {
  padding: 0;
}

/* Nav Section Label */
.nav-section-label {
  display: block;
  padding: var(--space-sm) var(--space-lg);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-400);
}

/* ================================================
   Dark Mode — Extended Coverage
   ================================================ */
body.dark .alert-warning {
  background: rgba(245, 158, 11, 0.1);
  color: #FCD34D;
  border-color: rgba(245, 158, 11, 0.2);
}
body.dark .alert-danger {
  background: rgba(244, 63, 94, 0.1);
  color: #FB7185;
  border-color: rgba(244, 63, 94, 0.2);
}
body.dark .alert-success {
  background: rgba(16, 185, 129, 0.1);
  color: #6EE7B7;
  border-color: rgba(16, 185, 129, 0.2);
}
body.dark .alert-info {
  background: rgba(14, 165, 233, 0.1);
  color: #7DD3FC;
  border-color: rgba(14, 165, 233, 0.2);
}
body.dark .radio-card {
  background: var(--color-gray-800);
  border-color: var(--color-gray-700);
}
body.dark .radio-card:hover {
  border-color: var(--color-primary-400);
  background: var(--color-gray-700);
}
body.dark .radio-card.selected,
body.dark .radio-card.active {
  border-color: var(--color-primary-500);
  background: rgba(99, 102, 241, 0.1);
}
body.dark .checkbox-card {
  background: var(--color-gray-800);
  border-color: var(--color-gray-700);
}
body.dark .checkbox-card:hover {
  border-color: var(--color-primary-400);
}
body.dark .checkbox-card.selected,
body.dark .checkbox-card.active {
  border-color: var(--color-primary-500);
  background: rgba(99, 102, 241, 0.1);
}
body.dark .toggle-track {
  background: var(--color-gray-600);
}
body.dark .fee-calculator {
  background: var(--color-gray-800);
  border-color: var(--color-gray-700);
}
body.dark .empty-state-icon {
  background: var(--color-gray-800);
}
body.dark .filter-bar {
  background: var(--color-gray-800);
  border-color: var(--color-gray-700);
}
body.dark .page-title {
  color: var(--color-gray-100);
}
body.dark .page-subtitle {
  color: var(--color-gray-400);
}

/* ----------------------------------------------------------
   44. Print Styles
   ---------------------------------------------------------- */
@media print {
  .sidebar,
  .sidebar-overlay,
  .main-header,
  .bottom-nav,
  .toast-container,
  .modal-overlay {
    display: none !important;
  }
  .btn-icon { display: none !important; }
  .btn-ghost:not([type="submit"]) { display: none !important; }

  .app-layout {
    grid-template-columns: 1fr;
  }

  .main-content {
    margin-left: 0;
  }

  .page-content {
    padding: 0;
    max-width: none;
  }

  body {
    background: #FFFFFF;
    color: #000000;
    font-size: 12pt;
  }

  .card,
  .stat-card {
    border: 1px solid #D1D5DB;
    box-shadow: none;
    break-inside: avoid;
  }

  .table-container {
    border: 1px solid #D1D5DB;
  }

  a[href]::after {
    content: ' (' attr(href) ')';
    font-size: 0.8em;
    color: #6B7280;
  }

  .badge {
    border: 1px solid #D1D5DB;
  }
}