/* ==========================================================================
   MEKTEB PORTAL - MODERN FLAT DESIGN SYSTEM
   Adapted from /UI-UX_Showcase with Google Material Symbols integration
   ========================================================================== */

:root {
  /* Core Brand & Semantic Colors */
  --color-primary: #245C8A;
  --color-primary-dark: #173F61;
  --color-primary-light: #E3EEF6;
  --color-gold: #C6A15B;
  --color-gold-light: #F3EBD9;
  --color-bg: #F4F7F9;
  --color-surface: #FFFFFF;
  --color-text: #26343D;
  --color-muted: #71808A;
  --color-border: #D9E2E8;
  --color-success: #34806C;
  --color-warning: #C58B35;
  --color-danger: #B95050;
  --color-info: #367C9E;

  /* Backward-compatible token aliases */
  --sys-bg: var(--color-bg);
  --sys-window: var(--color-surface);
  --sys-border: var(--color-border);
  --sys-header: var(--color-surface);
  --sys-text: var(--color-text);
  --sys-accent: var(--color-primary);
  --sys-accent-hover: var(--color-primary-dark);

  /* Typography Scale */
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  /* Spacing Scale */
  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* Flat Border Radius */
  --radius-xs: 3px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-pill: 9999px;

  /* Clean Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.25s ease-in-out;

  /* Dimensions */
  --header-height: 64px;
  --sidebar-width: 250px;
}

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

html {
  font-size: 15px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-stack);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

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

/* Utilities */
.text-primary { color: var(--color-primary) !important; }
.text-primary-dark { color: var(--color-primary-dark) !important; }
.text-gold { color: var(--color-gold) !important; }
.text-muted { color: var(--color-muted) !important; }
.text-success { color: var(--color-success) !important; }
.text-warning { color: var(--color-warning) !important; }
.text-danger { color: var(--color-danger) !important; }
.text-info { color: var(--color-info) !important; }

.bg-primary-light { background-color: var(--color-primary-light) !important; }
.bg-gold-light { background-color: var(--color-gold-light) !important; }
.bg-surface-muted { background-color: #F0F4F2 !important; }

.font-semibold { font-weight: 600; }
.text-monospace { font-family: var(--font-mono); font-size: 0.85rem; }
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.mt-2 { margin-top: var(--space-xs); }
.mt-3 { margin-top: var(--space-md); }
.mb-2 { margin-bottom: var(--space-xs); }
.mb-3 { margin-bottom: var(--space-md); }
.full-width { width: 100%; }
.hidden { display: none !important; }
.cursor-pointer { cursor: pointer; }
.text-center { text-align: center; }
.align-right { margin-left: auto; }

/* Google Material Symbols Font Standard */
.material-symbols-outlined {
  font-family: 'Material Symbols Outlined';
  font-weight: normal;
  font-style: normal;
  font-size: 20px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  letter-spacing: normal;
  text-transform: none;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-feature-settings: 'liga';
  -webkit-font-smoothing: antialiased;
  vertical-align: middle;
  user-select: none;
  flex-shrink: 0;
}

.app-icon {
  font-size: 22px;
}

.sidebar-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.sidebar-icon .material-symbols-outlined {
  font-size: 20px;
}

.hub-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}
.hub-icon .material-symbols-outlined {
  font-size: 48px;
  color: var(--color-primary);
}

.data-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}
.data-card-icon .material-symbols-outlined {
  font-size: 24px;
  color: var(--color-primary);
}

.metric-icon-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent !important;
  line-height: 1;
  flex-shrink: 0;
}

.metric-icon-box .material-symbols-outlined {
  font-size: 24px;
}

.btn .material-symbols-outlined {
  font-size: 18px;
  margin-right: 4px;
}

.btn-icon .material-symbols-outlined {
  font-size: 18px;
}

/* Overlay Backdrop */
.overlay-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(23, 63, 97, 0.45);
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

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

/* Buttons System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
  outline: none;
}

.btn-sm {
  padding: 5px 10px;
  font-size: 0.8125rem;
}

.btn-xs {
  padding: 3px 8px;
  font-size: 0.75rem;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-surface);
  border-color: var(--color-primary);
}

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

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

.btn-secondary:hover {
  background-color: var(--color-bg);
  border-color: #CBD7D2;
}

.btn-gold {
  background-color: var(--color-gold);
  color: var(--color-primary-dark);
  border-color: var(--color-gold);
}

.btn-gold:hover {
  background-color: #B5914E;
  border-color: #B5914E;
}

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

.btn-outline:hover {
  background-color: var(--color-bg);
  color: var(--color-text);
}

.btn-success {
  background-color: var(--color-success);
  color: var(--color-surface);
  border-color: var(--color-success);
}

.btn-success:hover {
  background-color: #276957;
  border-color: #276957;
}

.btn-warning {
  background-color: var(--color-warning);
  color: var(--color-surface);
  border-color: var(--color-warning);
}

.btn-warning:hover {
  background-color: #AB7527;
  border-color: #AB7527;
}

.btn-danger {
  background-color: var(--color-danger);
  color: var(--color-surface);
  border-color: var(--color-danger);
}

.btn-danger:hover {
  background-color: #9E3E3E;
  border-color: #9E3E3E;
}

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

.btn-icon {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
  padding: 0;
}

.btn-icon:hover {
  background-color: var(--color-bg);
  border-color: var(--color-border);
}

.btn-icon-sm {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-muted);
  padding: 0;
}

.btn-icon-sm:hover {
  background-color: var(--color-bg);
  color: var(--color-text);
}

/* Cards & Modern Flat Containers */
.card,
.data-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.card-flush {
  padding: 0;
  overflow: hidden;
}

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

.card-title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
}

.card-subtitle {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-top: 2px;
}

.data-card {
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
}

.data-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(36, 92, 138, 0.08);
}

.data-card-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 16px;
  background-color: #FAFBFD;
  border-bottom: 1px solid var(--color-border);
}

.data-card-info {
  flex-grow: 1;
  overflow: hidden;
}

.data-card-title {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-text);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.data-card-body {
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex-grow: 1;
}

.data-card-footer {
  padding: 10px 16px;
  background-color: #FAFBFD;
  border-top: 1px solid var(--color-border);
  font-size: 0.8125rem;
  color: var(--color-primary);
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.data-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--color-border);
}

.data-label {
  font-size: 0.8125rem;
  color: var(--color-muted);
  font-weight: 500;
}

.data-val {
  font-size: 1.0625rem;
  font-weight: 700;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  border: none;
  line-height: 1.4;
}

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

.badge-secondary {
  background-color: #EFE8FA;
  color: #57338C;
}

.badge-gold {
  background-color: var(--color-gold-light);
  color: #795713;
}

.badge-success {
  background-color: #E2F2EC;
  color: var(--color-success);
}

.badge-warning {
  background-color: #FDF3E3;
  color: var(--color-warning);
}

.badge-danger {
  background-color: #FCEBEB;
  color: var(--color-danger);
}

.badge-info {
  background-color: #E8F2F7;
  color: var(--color-info);
}

.badge-wrap {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-wrap: wrap;
}

/* Progress Bars */
.progress-container {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
}

.progress-label-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
}

.progress-bar-track {
  height: 6px;
  background-color: var(--color-border);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.progress-bar-fill,
.progress-fill {
  height: 100%;
  background-color: var(--color-primary);
  border-radius: var(--radius-pill);
  transition: width var(--transition-normal);
}

.progress-bar-gold {
  background-color: var(--color-gold);
}

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

/* Form Controls */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: var(--space-md);
}

.form-group label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text);
}

.form-control,
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 8px 12px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--color-text);
  transition: border-color var(--transition-fast);
  outline: none;
}

.form-control:focus,
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
}

.form-input-sm,
.form-select-sm {
  padding: 5px 10px;
  font-size: 0.8125rem;
  height: 32px;
}

.form-select-xs {
  padding: 2px 6px;
  font-size: 0.75rem;
  height: 28px;
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

.form-hint,
.form-help-text {
  font-size: 0.75rem;
  color: var(--color-muted);
  margin-top: 4px;
  line-height: 1.4;
}

/* Data Table Styling */
.table-container {
  width: 100%;
  overflow-x: auto;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.data-table thead {
  background-color: #F8FAFC;
  border-bottom: 1px solid var(--color-border);
}

.data-table th {
  padding: 10px 14px;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-muted);
  border-bottom: 1px solid var(--color-border);
}

.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

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

.data-table tbody tr:hover {
  background-color: #F8FAFC;
}

.action-link {
  color: var(--color-primary);
  text-decoration: none;
  cursor: pointer;
  margin: 0 4px;
  display: inline-flex;
  align-items: center;
}

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

.action-link.delete {
  color: var(--color-danger);
}

/* Tabs Navigation */
.ui-tabs-nav,
.tab-navigation-bar {
  display: flex;
  border-bottom: 2px solid var(--color-border);
  gap: var(--space-xs);
  overflow-x: auto;
  background-color: transparent;
  padding: 0 var(--space-md);
  user-select: none;
}

.ui-tab-btn,
.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 10px 16px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-muted);
  cursor: pointer;
  transition: color var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}

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

.ui-tab-btn.active,
.tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 600;
}

/* Toolbar */
.toolbar {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 8px 16px;
  display: flex;
  gap: var(--space-xs);
  align-items: center;
  flex-wrap: wrap;
}

.toolbar-separator {
  width: 1px;
  height: 24px;
  background-color: var(--color-border);
  margin: 0 4px;
}

/* Global Status Bar */
.global-statusbar {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 10px 16px;
  display: flex;
  gap: 24px;
  font-size: 0.875rem;
  flex-wrap: wrap;
}

.stat-group {
  display: flex;
  gap: 8px;
  align-items: center;
}

.stat-label {
  color: var(--color-muted);
  font-weight: 500;
}

.stat-value {
  font-weight: 700;
  color: var(--color-text);
}

/* Hub Cards Grid */
.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  max-width: 1080px;
  margin: 0 auto;
}

.hub-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 20px;
  text-align: center;
  text-decoration: none;
  color: var(--color-text);
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
}

.hub-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
  box-shadow: 0 6px 18px rgba(36, 92, 138, 0.08);
}

.hub-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.hub-desc {
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.5;
}

/* Generic Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
  align-content: start;
}

.actions-bar {
  display: flex;
  gap: 6px;
}

/* Modals System */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(23, 63, 97, 0.45);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 3000;
  opacity: 1;
  visibility: visible;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.modal-window {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  width: 100%;
  max-width: 480px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 28px rgba(23, 63, 97, 0.15);
  transform: translateY(0);
  transition: transform var(--transition-normal);
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  user-select: none;
}

.modal-title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  color: var(--color-muted);
}

.modal-close:hover {
  color: var(--color-danger);
}

.modal-body {
  padding: var(--space-lg);
  max-height: 72vh;
  overflow-y: auto;
  background-color: var(--color-surface);
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--color-border);
  background-color: #FAFBFD;
}

/* Modern Toast Notifications */
#toast-container,
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  max-width: 340px;
  width: calc(100% - 40px);
  pointer-events: none;
}

.toast {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  box-shadow: 0 4px 16px rgba(23, 63, 97, 0.1);
  pointer-events: auto;
  opacity: 0;
  transform: translateX(100%);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.toast.show {
  opacity: 1;
  transform: translateX(0);
}

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

.toast-content {
  flex: 1;
}

.toast-title {
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 2px;
  color: var(--color-text);
}

.toast-msg {
  font-size: 0.75rem;
  color: var(--color-muted);
  line-height: 1.4;
}

.toast-close {
  background: none;
  border: none;
  font-size: 1rem;
  line-height: 1;
  color: var(--color-muted);
  cursor: pointer;
  padding: 0 2px;
}

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

/* Spinners & View Loading Indicator */
.view-loader {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  min-height: 240px;
  color: var(--color-muted);
  font-size: 0.875rem;
  gap: 10px;
}

.spinner {
  width: 22px;
  height: 22px;
  border: 2.5px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-pill);
  animation: spin 0.8s linear infinite;
}

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

/* Custom Global Datepicker Accessible Hidden Input */
.dp-accessible-input {
  position: absolute !important;
  opacity: 0 !important;
  pointer-events: none !important;
  width: 1px !important;
  height: 1px !important;
  margin: 0 !important;
  padding: 0 !important;
  border: 0 !important;
  clip: rect(0, 0, 0, 0) !important;
  clip-path: inset(50%) !important;
  overflow: hidden !important;
  white-space: nowrap !important;
}

.custom-datepicker-container {
  width: 100%;
  padding: 6px 10px;
  font-family: var(--font-stack);
  font-size: 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  display: flex;
  align-items: center;
  position: relative;
  cursor: text;
  height: 36px;
}

.custom-datepicker-container:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
}

.dp-segment {
  outline: none;
  padding: 2px 4px;
  text-align: center;
  font-variant-numeric: tabular-nums;
  user-select: none;
}

.dp-segment[data-type="day"],
.dp-segment[data-type="month"] {
  min-width: 24px;
}

.dp-segment[data-type="year"] {
  min-width: 44px;
}

.dp-segment:focus {
  background-color: var(--color-primary);
  color: var(--color-surface);
  border-radius: var(--radius-xs);
}

.dp-separator {
  color: var(--color-muted);
  margin: 0 2px;
  user-select: none;
  font-weight: bold;
}

.dp-warning {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  color: var(--color-danger);
  font-size: 0.75rem;
  background: #FCEBEB;
  padding: 4px 8px;
  border: 1px solid #F5C6C6;
  border-radius: var(--radius-xs);
  z-index: 10;
  box-shadow: 0 2px 5px rgba(0,0,0,0.06);
}

@keyframes blink-red {
  0%, 100% { background-color: transparent; color: inherit; }
  50% { background-color: var(--color-danger); color: white; border-radius: var(--radius-xs); }
}

.dp-error-blink {
  animation: blink-red 0.4s ease-in-out 3;
  color: var(--color-danger) !important;
  font-weight: bold;
}

/* Pure Flat Tooltip */
[data-tooltip] {
  position: relative;
  cursor: pointer;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-primary-dark);
  color: var(--color-surface);
  font-size: 0.6875rem;
  font-weight: 500;
  padding: 4px 8px;
  border-radius: var(--radius-xs);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-fast);
  z-index: 950;
}

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