/* ========================================
   Design System Overrides - Central Layer
   Loaded late to normalize pages gradually.
   ======================================== */

:root {
  /* Component contract tokens */
  --ds-font-family: var(--font-family, 'Cairo', sans-serif);
  --ds-radius: var(--border-radius, 8px);
  --ds-field-height: 44px;
  --ds-field-height-mobile: 48px;
  --ds-field-font-size: var(--font-size-base, 1rem);
  --ds-btn-font-size: var(--font-size-sm, 0.875rem);
  --ds-btn-height: 40px;
  --ds-btn-padding-inline: var(--space-4, 1rem);
  --ds-grid-density-y: 0.625rem;
}

/* ===== Buttons ===== */
.btn,
button.btn,
a.btn {
  min-height: var(--ds-btn-height);
  padding-inline: var(--ds-btn-padding-inline);
  border-radius: var(--ds-radius);
  font-family: var(--ds-font-family);
  font-size: var(--ds-btn-font-size);
  line-height: 1.2;
  transition: transform 180ms cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

.btn-primary {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--ds-btn-primary-text, var(--background-primary));
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
}

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

.btn-success {
  background: var(--success-color);
  border-color: var(--success-color);
  color: var(--ds-btn-secondary-text, var(--background-primary));
}

.btn-danger {
  background: var(--error-color);
  border-color: var(--error-color);
  color: var(--ds-btn-secondary-text, var(--background-primary));
}

.btn-warning {
  background: var(--warning-color);
  border-color: var(--warning-color);
  color: var(--ds-btn-secondary-text, var(--background-primary));
}

/* ===== Fields ===== */
.form-control,
.form-select,
textarea.form-control,
input.form-control,
select.form-control {
  min-height: var(--ds-field-height);
  border-radius: var(--ds-radius);
  border-color: var(--input-border, var(--border-color));
  background: var(--input-bg, var(--background-primary));
  color: var(--input-text, var(--text-primary));
  font-family: var(--ds-font-family);
  font-size: var(--ds-field-font-size);
}

.form-control::placeholder,
.form-select::placeholder,
input::placeholder,
textarea::placeholder {
  color: var(--input-placeholder, var(--text-muted));
}

.form-control:focus,
.form-select:focus,
input:focus,
select:focus,
textarea:focus {
  border-color: var(--input-focus-border, var(--primary-color));
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.14);
}

.form-control[readonly],
.form-select[readonly],
input[readonly],
textarea[readonly] {
  background: var(--background-secondary);
}

.form-control:disabled,
.form-select:disabled,
input:disabled,
select:disabled,
textarea:disabled {
  background: var(--background-secondary);
  color: var(--text-muted);
}

.is-invalid,
.form-control.is-invalid,
.form-select.is-invalid {
  border-color: var(--error-color);
}

.invalid-feedback,
.field-error {
  color: var(--error-color);
}

.field-hint,
.form-text {
  color: var(--text-secondary);
}

/* ===== Tables ===== */
.table {
  --bs-table-bg: var(--background-primary);
  --bs-table-striped-bg: var(--background-secondary);
  --bs-table-color: var(--text-primary);
  border-color: var(--border-color);
}

.table > :not(caption) > * > * {
  padding-block: var(--ds-grid-density-y);
  border-color: var(--border-color);
}

.table thead th {
  color: var(--text-secondary);
  font-weight: 700;
  background: var(--background-secondary);
}

/* ===== Shared utilities for migration ===== */
.ds-loading-spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid var(--border-color);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.ds-tab-button {
  border-radius: var(--ds-radius) var(--ds-radius) 0 0;
  border-bottom: none;
}

.ds-loading-state {
  padding: 2.5rem;
  text-align: center;
}

.ds-loading-caption {
  margin-top: 1rem;
}

.ds-empty-note {
  padding: 1rem;
  color: var(--text-secondary);
  text-align: center;
}

.ds-alert-inline {
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ds-org-required-box {
  background: var(--background-secondary);
  padding: 0.75rem;
  border-radius: var(--ds-radius);
  margin-bottom: 1rem;
  border: 1px solid var(--primary-color);
}

.ds-org-required-label {
  font-weight: 700;
  color: var(--primary-color);
}

.ds-flex-row {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

.ds-grid-auto-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.ds-provider-card {
  padding: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  text-align: center;
  background: var(--background-primary);
}

.ds-provider-card--active {
  border-color: var(--primary-color);
  background: var(--background-secondary);
}

.ds-provider-card--muted {
  opacity: 0.65;
}

/* ===== Radzen compatibility layer ===== */
.rz-button {
  min-height: var(--ds-btn-height);
  border-radius: var(--ds-radius);
  font-family: var(--ds-font-family);
}

.rz-button.rz-primary {
  background: var(--primary-color);
  border-color: var(--primary-color);
}

.rz-textbox,
.rz-dropdown,
.rz-datepicker input,
.rz-numeric-input,
.rz-textarea {
  min-height: var(--ds-field-height);
  border-radius: var(--ds-radius);
  border-color: var(--input-border, var(--border-color));
  background: var(--input-bg, var(--background-primary));
  color: var(--input-text, var(--text-primary));
}

.rz-textbox:focus,
.rz-dropdown:focus,
.rz-datepicker input:focus,
.rz-numeric-input:focus,
.rz-textarea:focus {
  border-color: var(--input-focus-border, var(--primary-color));
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.14);
}

.rz-datatable,
.rz-data-grid {
  border-color: var(--border-color);
  color: var(--text-primary);
}

.rz-datatable .rz-column-title,
.rz-data-grid .rz-column-title {
  color: var(--text-secondary);
}

@media (max-width: 767px) {
  .form-control,
  .form-select,
  input,
  select,
  textarea,
  .rz-textbox,
  .rz-dropdown,
  .rz-datepicker input,
  .rz-numeric-input,
  .rz-textarea {
    min-height: var(--ds-field-height-mobile);
    font-size: 16px;
  }

  .btn,
  .rz-button {
    min-height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn,
  .rz-button,
  .form-control,
  .form-select {
    transition: none;
  }
}