/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: 9px var(--spacing-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
  letter-spacing: -0.01em;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 1px 2px rgb(79 70 229 / 0.25), inset 0 1px 0 rgb(255 255 255 / 0.12);
}

.btn-primary:hover:not(:disabled) {
  background: var(--gradient-primary-hover);
  box-shadow: 0 3px 8px rgb(79 70 229 / 0.35), inset 0 1px 0 rgb(255 255 255 / 0.12);
  transform: translateY(-1px);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 1px 2px rgb(79 70 229 / 0.2);
}

.btn-secondary {
  background-color: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-gray-300);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-gray-50);
  border-color: var(--color-gray-400);
}

.btn-danger {
  background: linear-gradient(180deg, #f05252 0%, #dc2626 100%);
  color: white;
  box-shadow: 0 1px 2px rgb(220 38 38 / 0.25), inset 0 1px 0 rgb(255 255 255 / 0.1);
}

.btn-danger:hover:not(:disabled) {
  background: linear-gradient(180deg, #e04040 0%, #b91c1c 100%);
  box-shadow: 0 3px 8px rgb(220 38 38 / 0.3);
  transform: translateY(-1px);
}

.btn-danger:active:not(:disabled) {
  transform: translateY(0);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text-secondary);
  width: 40px;
}

.btn-ghost:hover:not(:disabled) {
  background-color: var(--color-gray-100);
  color: var(--color-text);
}

.btn-link {
  background: none;
  color: var(--color-primary-600);
  padding: 0;
}

.btn-link:hover:not(:disabled) {
  color: var(--color-primary-700);
  text-decoration: underline;
}

.btn-sm {
  padding: 5px var(--spacing-3);
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-base);
}

.btn-icon {
  padding: var(--spacing-2);
}

.btn-icon svg {
  width: 20px;
  height: 20px;
}

/* ============================================
   FORM ELEMENTS
   ============================================ */

.form-group {
  margin-bottom: var(--spacing-4);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-1);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-700);
  letter-spacing: -0.01em;
}

.form-label.required::after {
  content: ' *';
  color: var(--color-error-500);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 9px var(--spacing-3);
  font-size: var(--font-size-sm);
  background-color: var(--color-bg);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  color: var(--color-text);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgb(99 102 241 / 0.12);
}

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

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--color-error-500);
}

.form-input.error:focus,
.form-select.error:focus,
.form-textarea.error:focus {
  box-shadow: 0 0 0 3px rgb(239 68 68 / 0.12);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-hint {
  margin-top: var(--spacing-1);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.form-error {
  margin-top: var(--spacing-1);
  font-size: var(--font-size-xs);
  color: var(--color-error-600);
}

.form-checkbox,
.form-radio {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  cursor: pointer;
}

.form-checkbox input,
.form-radio input {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary-600);
}

/* ============================================
   CARDS
   ============================================ */

.card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  /* No overflow:hidden — it clips dropdown menus that escape the card */
}

.card-header {
  padding: var(--spacing-4) var(--spacing-6);
  border-bottom: 1px solid var(--color-gray-100);
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.02em;
}

.card-body {
  padding: var(--spacing-6);
}

/* When card-body directly wraps a table, go flush — no double-box effect */
.card-body:has(> .table-container) {
  padding: 0;
}

/* Round the top corners of the first header row when table is at the top of a card */
.card > .card-body:first-child > .table-container:first-child .table thead tr:first-child th:first-child,
.card > .table-container:first-child .table thead tr:first-child th:first-child {
  border-top-left-radius: calc(var(--radius-xl) - 1px);
}
.card > .card-body:first-child > .table-container:first-child .table thead tr:first-child th:last-child,
.card > .table-container:first-child .table thead tr:first-child th:last-child {
  border-top-right-radius: calc(var(--radius-xl) - 1px);
}

.card-footer {
  padding: var(--spacing-4) var(--spacing-6);
  border-top: 1px solid var(--color-gray-100);
  background-color: var(--color-gray-50);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

/* ============================================
   BADGES
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-1);
  padding: 3px 9px;
  font-size: 0.6875rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.01em;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  white-space: nowrap;
  line-height: 1.4;
}

.badge-primary {
  background-color: var(--color-primary-50);
  color: var(--color-primary-700);
  border-color: var(--color-primary-200);
}

.badge-success {
  background-color: var(--color-success-50);
  color: var(--color-success-700);
  border-color: var(--color-success-100);
}

.badge-warning {
  background-color: #fffbeb;
  color: #92400e;
  border-color: #fde68a;
}

.badge-error {
  background-color: var(--color-error-50);
  color: var(--color-error-700);
  border-color: var(--color-error-100);
}

.badge-gray {
  background-color: var(--color-gray-100);
  color: var(--color-gray-600);
  border-color: var(--color-gray-200);
}

/* ============================================
   TABLES
   ============================================ */

/* Only show a scrollbar when the table genuinely overflows */
.table-container {
  width: 100%;
  /* Do NOT set overflow here — let the table breathe.
     Horizontal scroll is handled per-page if needed via .table-scroll */
}

/* Opt-in horizontal scroll for wide tables */
.table-scroll {
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-gray-300) transparent;
}
.table-scroll::-webkit-scrollbar { height: 4px; }
.table-scroll::-webkit-scrollbar-track { background: transparent; }
.table-scroll::-webkit-scrollbar-thumb {
  background-color: var(--color-gray-300);
  border-radius: var(--radius-full);
}

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

.table th,
.table td {
  padding: var(--spacing-3) var(--spacing-5);
  text-align: left;
  border-bottom: 1px solid var(--color-gray-100);
  vertical-align: middle;
}

.table th {
  font-size: 0.6875rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background-color: var(--color-gray-50);
  white-space: nowrap;
  padding-top: 11px;
  padding-bottom: 11px;
}

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

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

.table-clickable tbody tr {
  cursor: pointer;
}

/* ============================================
   AVATARS
   ============================================ */

.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background-color: var(--color-primary-100);
  color: var(--color-primary-700);
  font-weight: var(--font-weight-semibold);
  overflow: hidden;
  flex-shrink: 0;
}

.avatar-sm {
  width: 32px;
  height: 32px;
  font-size: var(--font-size-xs);
}

.avatar-md {
  width: 40px;
  height: 40px;
  font-size: var(--font-size-sm);
}

.avatar-lg {
  width: 48px;
  height: 48px;
  font-size: var(--font-size-base);
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-group {
  display: flex;
}

.avatar-group .avatar {
  border: 2px solid var(--color-bg);
  margin-left: -8px;
}

.avatar-group .avatar:first-child {
  margin-left: 0;
}

/* ============================================
   DROPDOWNS
   ============================================ */

.dropdown {
  position: relative;
  display: inline-block;
}


.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: var(--z-dropdown);
  min-width: 190px;
  padding: var(--spacing-1);
  margin-top: 6px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px) scale(0.97);
  transform-origin: top;
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.dropdown-menu-right {
  left: auto;
  right: 0;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  width: 100%;
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

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

.dropdown-item.danger {
  color: var(--color-error-600);
}

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

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

/* ============================================
   TOASTS
   ============================================ */

#toast-container {
  position: fixed;
  top: var(--spacing-4);
  right: var(--spacing-4);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
  padding: var(--spacing-4);
  min-width: 320px;
  max-width: 420px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-gray-200);
  border-left: 4px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  animation: slideIn var(--transition-normal);
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(100%) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

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

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  margin-bottom: 2px;
  letter-spacing: -0.01em;
}

.toast-message {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.toast-close {
  flex-shrink: 0;
  padding: var(--spacing-1);
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
}

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

.toast.success {
  border-left-color: var(--color-success-500);
}
.toast.success .toast-icon {
  color: var(--color-success-500);
}

.toast.error {
  border-left-color: var(--color-error-500);
}
.toast.error .toast-icon {
  color: var(--color-error-500);
}

.toast.warning {
  border-left-color: var(--color-warning-500);
}
.toast.warning .toast-icon {
  color: var(--color-warning-500);
}

.toast.info {
  border-left-color: var(--color-info-500);
}
.toast.info .toast-icon {
  color: var(--color-info-500);
}

/* ============================================
   MODALS
   ============================================ */

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background-color: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-4);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal);
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  width: 100%;
  max-width: 500px;
  max-height: calc(100vh - var(--spacing-8));
  background-color: var(--color-bg);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  overflow: hidden;
  transform: scale(0.95) translateY(8px);
  transition: transform var(--transition-normal);
  border: 1px solid var(--color-gray-200);
}

.modal-backdrop.open .modal {
  transform: scale(1) translateY(0);
}

.modal-lg {
  max-width: 720px;
}

.modal-xl {
  max-width: 1024px;
}

.modal-fullscreen {
  max-width: 1200px;
  width: 95vw;
  height: 85vh;
  display: flex;
  flex-direction: column;
}

.modal-fullscreen .modal-header {
  flex-shrink: 0;
}

.modal-fullscreen .modal-body {
  flex: 1;
  overflow: hidden;
  padding: 0;
}

.modal-fullscreen .modal-footer {
  flex-shrink: 0;
}

/* Approval Review Cards */

.approval-review-card {
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-4);
  background: var(--color-bg);
  overflow: hidden;
}

.approval-review-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-3) var(--spacing-4);
  background: var(--color-gray-50);
  border-bottom: 1px solid var(--color-gray-200);
  flex-wrap: wrap;
  gap: var(--spacing-2);
}

.approval-review-step-name {
  font-weight: var(--font-weight-semibold, 600);
  font-size: var(--font-size-sm);
}

.approval-review-meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.approval-review-body {
  padding: var(--spacing-4);
}

.approval-review-body .form-group {
  margin-bottom: var(--spacing-3);
}

.approval-review-body .form-group:last-child {
  margin-bottom: 0;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-5) var(--spacing-6);
  border-bottom: 1px solid var(--color-gray-100);
}

.modal-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.02em;
  color: var(--color-gray-900);
}

.modal-close {
  padding: var(--spacing-1);
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

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

.modal-body {
  padding: var(--spacing-6);
  overflow-y: auto;
  max-height: calc(100vh - 200px);
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--spacing-3);
  padding: var(--spacing-4) var(--spacing-6);
  border-top: 1px solid var(--color-gray-100);
  background-color: var(--color-gray-50);
}

/* ============================================
   LOADING STATES
   ============================================ */

.loading-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  gap: var(--spacing-4);
  color: var(--color-text-secondary);
}

.loading-spinner {
  width: 36px;
  height: 36px;
  border: 2.5px solid var(--color-gray-200);
  border-top-color: var(--color-primary-500);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

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

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

/* ============================================
   EMPTY STATES
   ============================================ */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-12);
  text-align: center;
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--spacing-4);
  color: var(--color-text-muted);
}

.empty-state-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-2);
  letter-spacing: -0.02em;
}

.empty-state-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-6);
  max-width: 400px;
}

/* ============================================
   TABS
   ============================================ */

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

/* When tabs sit inside a card-header, extend flush to card edges */
.card-header > .tabs {
  margin: 0 calc(-1 * var(--spacing-6));
  padding: 0 var(--spacing-6);
  /* card-header has its own border-bottom; tabs overlap it with margin-bottom:-1px on .tab */
}

.tab {
  padding: var(--spacing-3) var(--spacing-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-500);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  cursor: pointer;
  transition: all var(--transition-fast);
  letter-spacing: -0.01em;
}

.tab:hover {
  color: var(--color-gray-800);
}

.tab.active {
  color: var(--color-primary-600);
  border-bottom-color: var(--color-primary-600);
}

.tab-content {
  padding: var(--spacing-4) 0;
}

/* ============================================
   PAGINATION
   ============================================ */

.pagination {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
}

.pagination-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: var(--spacing-1) var(--spacing-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
  background-color: var(--color-gray-50);
  color: var(--color-text);
  border-color: var(--color-gray-400);
}

.pagination-btn.active {
  background: var(--gradient-primary);
  border-color: var(--color-primary-600);
  color: white;
  box-shadow: 0 1px 3px rgb(79 70 229 / 0.3);
}

.pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}