/* ==========================================================================
   Component Styles
   Reusable UI component styles for the School Management ERP.
   Consumes design tokens from design-tokens.css and theme variables from theme.css.

   Requirements: 1.4, 1.6, 6.1, 6.2, 6.3, 6.5, 6.7,
                 7.1, 7.2, 7.3, 7.4, 7.5, 7.6,
                 8.1, 8.2, 8.3, 8.4, 8.5, 8.6
   ========================================================================== */

/* ==========================================================================
   1. BUTTONS
   Req 8.1: primary (filled), secondary (outlined), danger (red filled)
   Req 8.2: min 44px touch target
   Req 8.3: 150ms scale(0.97) click animation
   Req 8.4: sizes sm (32px), md (40px), lg (48px)
   Req 8.5: spinner loading indicator, disabled state
   Req 8.6: confirmation modal for destructive actions
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 500;
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  text-decoration: none;
  min-height: 44px;
  min-width: 44px;
  padding: var(--space-3) var(--space-4);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast),
    opacity var(--transition-fast);
}

.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.btn:active:not(:disabled) {
  transform: scale(0.97);
}

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

/* Primary button — filled */
.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

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

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

/* Secondary button — outlined */
.btn-secondary {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-surface-hover);
  border-color: var(--color-border-strong);
}

.btn-secondary:active:not(:disabled) {
  background-color: var(--color-surface-hover);
}

/* Danger button — red filled */
.btn-danger {
  background-color: var(--color-danger);
  color: #ffffff;
  border-color: var(--color-danger);
}

.btn-danger:hover:not(:disabled) {
  background-color: #dc2626;
  border-color: #dc2626;
}

.btn-danger:active:not(:disabled) {
  background-color: #b91c1c;
}

/* Ghost button — no border, subtle hover */
.btn-ghost {
  background-color: transparent;
  color: var(--color-text-secondary);
  border-color: transparent;
}

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

/* ---- Button sizes ---- */
.btn-sm {
  min-height: 32px;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-sm);
  border-radius: var(--radius-sm);
}

.btn-md {
  min-height: 40px;
  padding: var(--space-2) var(--space-4);
}

.btn-lg {
  min-height: 48px;
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-lg);
}

/* Icon-only button */
.btn-icon {
  padding: var(--space-2);
  min-width: 44px;
  min-height: 44px;
}

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

/* ---- Button loading state ---- */
.btn.is-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn.is-loading::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: var(--radius-full);
  animation: btn-spin 600ms linear infinite;
}

.btn-primary.is-loading::after {
  border-color: rgba(255, 255, 255, 0.4);
  border-right-color: transparent;
}

.btn-secondary.is-loading::after {
  border-color: var(--color-text-muted);
  border-right-color: transparent;
}

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

/* Button group */
.btn-group {
  display: inline-flex;
  gap: var(--space-2);
  align-items: center;
  flex-wrap: wrap;
}

/* ==========================================================================
   2. FORMS
   Req 7.1: min 44px height, padding 12px 16px
   Req 7.2: focus ring (3px semi-transparent ring)
   Req 7.3: label style (13px, 600 weight)
   Req 7.4: error state (red border + message)
   Req 7.5: section headings for long forms
   Req 7.6: action buttons right-aligned at bottom
   ========================================================================== */

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
}

.form-label .required {
  color: var(--color-danger);
  margin-left: 2px;
}

.form-control {
  display: block;
  width: 100%;
  min-height: 44px;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  appearance: none;
}

.form-control::placeholder {
  color: var(--color-text-muted);
}

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

.form-control:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background-color: var(--color-bg-alt);
}

/* Select */
.form-select {
  composes: form-control;
  padding-right: var(--space-10);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  background-size: 16px;
}

select.form-control {
  padding-right: var(--space-10);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  background-size: 16px;
}

/* Textarea */
textarea.form-control {
  min-height: 100px;
  resize: vertical;
}

/* Checkbox & Radio */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 44px;
  cursor: pointer;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* Error state */
.form-control.is-invalid,
.form-control[aria-invalid="true"] {
  border-color: var(--color-danger);
}

.form-control.is-invalid:focus,
.form-control[aria-invalid="true"]:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-danger);
  margin-top: var(--space-1);
}

/* form-input alias for form-control */
.form-input {
  display: block;
  width: 100%;
  min-height: 44px;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  appearance: none;
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

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

.form-input--error,
.form-input[aria-invalid="true"] {
  border-color: var(--color-danger);
}

.form-input--error:focus,
.form-input[aria-invalid="true"]:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

/* form-select standalone */
.form-select {
  display: block;
  width: 100%;
  min-height: 44px;
  padding: var(--space-3) var(--space-4);
  padding-right: var(--space-10);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  background-size: 16px;
  appearance: none;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

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

/* text-danger helper */
.text-danger { color: var(--color-danger); }

/* table link */
.table__link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}
.table__link:hover {
  text-decoration: underline;
}

/* Form section headings */
.form-section {
  margin-top: var(--space-6);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.form-section__title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.form-section__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

/* Form actions — right-aligned */
.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding-top: var(--space-6);
  margin-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

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

/* Input group (icon + input) */
.input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.input-group__icon {
  position: absolute;
  left: var(--space-3);
  width: 18px;
  height: 18px;
  color: var(--color-text-muted);
  pointer-events: none;
}

.input-group .form-control {
  padding-left: var(--space-10);
}

/* ==========================================================================
   3. TABLES
   Req 6.1: min 48px row height, thin separator lines
   Req 6.2: sticky header
   Req 6.3: hover row highlight
   Req 6.5: empty state when no data
   Req 6.7: action buttons right-aligned
   ========================================================================== */

.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--table-border);
  border-radius: var(--radius-md);
  background-color: var(--card-bg);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-base);
}

.table th,
.table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  vertical-align: middle;
  border-bottom: 1px solid var(--table-border);
}

.table th {
  position: sticky;
  top: 0;
  z-index: 1;
  background-color: var(--table-header-bg);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.table tbody tr {
  min-height: 48px;
  transition: background-color var(--transition-fast);
}

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

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

/* Striped rows (optional) */
.table-striped tbody tr:nth-child(even) {
  background-color: var(--table-stripe-bg);
}

.table-striped tbody tr:nth-child(even):hover {
  background-color: var(--table-row-hover);
}

/* Action column — right-aligned */
.table .col-actions {
  text-align: right;
  white-space: nowrap;
}

.table .col-actions .btn {
  min-height: 32px;
  min-width: 32px;
  padding: var(--space-1);
}

.table .col-actions .btn + .btn {
  margin-left: var(--space-1);
}

/* Table filter bar */
.table-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--table-border);
  flex-wrap: wrap;
}

.table-toolbar .form-control {
  min-height: 36px;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
}

.table-toolbar__search {
  flex: 1;
  min-width: 200px;
  max-width: 320px;
}

/* Table pagination */
.table-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--table-border);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.table-pagination__pages {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* ==========================================================================
   4. CARDS
   Req 1.6: shadow, hover shadow increase, padding, border-radius
   ========================================================================== */

.card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
  padding: var(--space-6);
  transition:
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card--clickable {
  cursor: pointer;
}

.card--clickable:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.card__title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.card__subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

.card__body {
  color: var(--color-text);
}

.card__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

/* Stat card — dashboard summary cards */
.stat-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
  padding: var(--space-5);
  transition:
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.stat-card__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.stat-card__icon svg {
  width: 20px;
  height: 20px;
}

.stat-card__value {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.stat-card__label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

.stat-card__change {
  font-size: var(--text-xs);
  font-weight: 500;
  margin-top: var(--space-2);
}

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

.stat-card__change--down {
  color: var(--color-danger);
}

/* ==========================================================================
   5. BADGES / LABELS
   Status colors: success, warning, danger, info
   ========================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  line-height: 1.5;
  border-radius: var(--radius-full);
  white-space: nowrap;
  background-color: var(--badge-bg);
  color: var(--badge-text);
}

.badge-success {
  background-color: var(--color-success-light);
  color: var(--color-success);
  border: 1px solid var(--color-success-border);
}

.badge-warning {
  background-color: var(--color-warning-light);
  color: var(--color-warning);
  border: 1px solid var(--color-warning-border);
}

.badge-danger {
  background-color: var(--color-danger-light);
  color: var(--color-danger);
  border: 1px solid var(--color-danger-border);
}

.badge-info {
  background-color: var(--color-info-light);
  color: var(--color-info);
  border: 1px solid var(--color-info-border);
}

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

/* Dot indicator inside badge */
.badge__dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background-color: currentColor;
  flex-shrink: 0;
}

/* Notification count badge (small circle) */
.badge-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  color: #ffffff;
  background-color: var(--color-danger);
  border-radius: var(--radius-full);
}

/* ==========================================================================
   6. MODAL / DIALOG
   Req 8.6: overlay, centering, animation
   ========================================================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--modal-overlay);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--transition-base),
    visibility var(--transition-base);
}

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

.modal {
  position: relative;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  background-color: var(--modal-bg);
  border: 1px solid var(--modal-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  transform: translateY(8px) scale(0.98);
  transition:
    transform var(--transition-base),
    opacity var(--transition-base);
  opacity: 0;
}

.modal-overlay.is-active .modal {
  transform: translateY(0) scale(1);
  opacity: 1;
}

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

.modal__title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.modal__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: none;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.modal__close:hover {
  background-color: var(--color-surface-hover);
  color: var(--color-text);
}

.modal__close:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.modal__close svg {
  width: 20px;
  height: 20px;
}

.modal__body {
  padding: var(--space-6);
}

.modal__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
}

/* Modal sizes */
.modal--sm {
  max-width: 400px;
}

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

.modal--xl {
  max-width: 960px;
}

/* Confirmation dialog */
.modal--confirm .modal__body {
  text-align: center;
  padding: var(--space-8) var(--space-6);
}

.modal--confirm .modal__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background-color: var(--color-danger-light);
  color: var(--color-danger);
}

.modal--confirm .modal__icon svg {
  width: 24px;
  height: 24px;
}

.modal--confirm .modal__message {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  margin-top: var(--space-2);
}

.modal--confirm .modal__footer {
  justify-content: center;
}

/* ==========================================================================
   7. EMPTY STATE
   Req 6.5: icon, text, action button
   ========================================================================== */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-12) var(--space-6);
  text-align: center;
}

.empty-state__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background-color: var(--color-bg-alt);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.empty-state__icon svg {
  width: 28px;
  height: 28px;
}

.empty-state__title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-2);
}

.empty-state__desc {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  max-width: 360px;
  margin: 0 0 var(--space-6);
}

/* ==========================================================================
   8. TABS
   ========================================================================== */

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

.tab {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  min-height: 44px;
  transition:
    color var(--transition-fast),
    border-color var(--transition-fast);
}

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

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

.tab:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--focus-ring);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

/* ==========================================================================
   9. DROPDOWN
   ========================================================================== */

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

.dropdown__menu {
  position: absolute;
  top: 100%;
  right: 0;
  z-index: 100;
  min-width: 180px;
  padding: var(--space-1) 0;
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition:
    opacity var(--transition-fast),
    transform var(--transition-fast),
    visibility var(--transition-fast);
}

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

.dropdown__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color var(--transition-fast);
}

.dropdown__item:hover {
  background-color: var(--color-surface-hover);
}

.dropdown__item:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.dropdown__item svg {
  width: 16px;
  height: 16px;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.dropdown__divider {
  height: 1px;
  margin: var(--space-1) 0;
  background-color: var(--color-border);
}

/* ==========================================================================
   10. PROGRESS BAR
   ========================================================================== */

.progress {
  width: 100%;
  height: 8px;
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress__bar {
  height: 100%;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
  transition: width var(--transition-base);
}

.progress__bar--success {
  background-color: var(--color-success);
}

.progress__bar--warning {
  background-color: var(--color-warning);
}

.progress__bar--danger {
  background-color: var(--color-danger);
}

/* ==========================================================================
   11. AVATAR
   ========================================================================== */

.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: 600;
  overflow: hidden;
  flex-shrink: 0;
}

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

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

.avatar--lg {
  width: 56px;
  height: 56px;
  font-size: var(--text-lg);
}

/* ==========================================================================
   12. TOGGLE / SWITCH
   ========================================================================== */

.toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  width: 44px;
  height: 24px;
  cursor: pointer;
}

.toggle input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle__track {
  width: 100%;
  height: 100%;
  background-color: var(--color-border-strong);
  border-radius: var(--radius-full);
  transition: background-color var(--transition-fast);
}

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

.toggle__thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background-color: #ffffff;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-fast);
}

.toggle input:checked ~ .toggle__thumb {
  transform: translateX(20px);
}

.toggle input:focus-visible + .toggle__track {
  box-shadow: 0 0 0 3px var(--focus-ring);
}

/* ==========================================================================
   13. TOOLTIP
   ========================================================================== */

[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-weight: 500;
  color: #ffffff;
  background-color: var(--color-text);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
  z-index: 50;
}

[data-tooltip]:hover::after {
  opacity: 1;
}

/* ==========================================================================
   14. DIVIDER
   ========================================================================== */

.divider {
  height: 1px;
  background-color: var(--color-border);
  margin: var(--space-4) 0;
  border: none;
}

/* ==========================================================================
   15. LOGIN PAGE (web-ui-modernization Req 1.x, 7.1, 8.x)
   Token-based, theme-aware login layout. Shell-less but design-consistent.
   ========================================================================== */

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  background:
    radial-gradient(circle at top, rgba(79, 70, 229, 0.10), transparent 60%),
    var(--login-bg);
  font-family: var(--font-sans);
}

.login-card {
  width: 100%;
  max-width: 420px;
  padding: var(--space-8);
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.login-card__brand {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-5);
  border-radius: var(--radius-md);
  background: var(--login-gradient);
  color: #ffffff;
}

.login-card__brand svg {
  width: 28px;
  height: 28px;
}

.login-card__title {
  text-align: center;
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 var(--space-2);
}

.login-card__subtitle {
  text-align: center;
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-6);
}

.login-card .form-group + .form-group {
  margin-top: var(--space-4);
}

.login-card__submit {
  width: 100%;
  margin-top: var(--space-6);
  background: var(--login-gradient);
  border-color: transparent;
}

.login-card__submit:hover:not(:disabled) {
  background: var(--login-gradient);
  filter: brightness(1.05);
}

.login-alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-5);
  font-size: var(--text-base);
  color: var(--color-danger);
  background-color: var(--color-danger-light);
  border: 1px solid var(--color-danger-border);
  border-radius: var(--radius-sm);
}

.login-alert svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 1px;
}

.login-demo {
  margin-top: var(--space-6);
  padding: var(--space-4);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-text-secondary);
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.login-demo strong {
  color: var(--color-text);
}

/* Micro-interaction: reduced motion respected globally via accessibility.css */
@media (prefers-reduced-motion: reduce) {
  .login-card__submit:hover:not(:disabled) {
    filter: none;
  }
}

/* ==========================================================================
   16. MICRO-INTERACTIONS (web-ui-modernization Req 6.1–6.5)
   Additive, token-driven hover/focus/press feedback. Existing component
   rules above are preserved; these only fill consistency gaps.
   ========================================================================== */

/* Consistent press feedback on interactive controls */
.stat-card:active,
.card--clickable:active,
.dropdown__item:active,
.tab:active:not(.is-active) {
  transform: scale(0.99);
}

/* Subtle lift on stat-link / table link hover already exists; add focus ring */
.stat-link:focus-visible,
.table__link:focus-visible,
.stat-card__link:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--focus-ring);
  border-radius: var(--radius-sm);
}

/* Quick-access secondary buttons: gentle elevation on hover */
.btn-secondary:hover:not(:disabled) {
  box-shadow: var(--shadow-xs);
}

/* Legend / chart hover handled in charts.css. Reduced-motion guard: */
@media (prefers-reduced-motion: reduce) {
  .stat-card:active,
  .card--clickable:active,
  .dropdown__item:active,
  .tab:active:not(.is-active),
  .btn:active:not(:disabled),
  .card--clickable:hover,
  .stat-card:hover {
    transform: none !important;
  }
}