/* ============================================
   VVM UI Kit
   Namespaced with ui-* prefix
   Maps to VVM Design System tokens from patterns.css
   ============================================ */

/* ── Variable fallbacks (primary source: ui-tokens.css) ── */
:root {
  /* Brand */
  --color-brand: var(--color-accent-primary, #05F2F2);
  --color-brand-hover: var(--color-accent-primary-hover, #05F2DB);
  --color-brand-subtle: var(--color-bg-active, rgba(5, 242, 242, 0.1));
  --color-brand-border: rgba(5, 242, 242, 0.3);
  --color-on-brand: var(--color-text-inverse, #0D0D0D);

  /* Backgrounds */
  --color-bg: var(--color-bg-primary, #0D0D0D);

  /* Text */
  --color-text: var(--color-text-primary, #FFFFFF);

  /* Borders */
  --color-border: var(--color-border-default, #2A2A2A);

  /* Shadows */
  --shadow-card: var(--shadow-sm);
  --shadow-elevated: var(--shadow-lg);

  /* UI Kit semantic colors (dark-first defaults) */
  --ui-success: #4ade80;
  --ui-success-light: rgba(22, 163, 74, 0.1);
  --ui-warning: #fbbf24;
  --ui-warning-light: rgba(245, 158, 11, 0.1);
  --ui-danger: #f87171;
  --ui-danger-light: rgba(220, 38, 38, 0.1);
  --ui-info: #60a5fa;
  --ui-info-light: rgba(59, 130, 246, 0.1);
}

/* Light theme overrides */
[data-theme="light"] {
  --color-brand: var(--color-accent-primary, #0E7490);
  --color-brand-hover: var(--color-accent-primary-hover, #155E75);
  --color-brand-subtle: var(--color-bg-active, rgba(14, 116, 144, 0.1));
  --color-brand-border: rgba(14, 116, 144, 0.25);
  --color-on-brand: var(--color-text-inverse, #FFFFFF);
  --color-bg: var(--color-bg-primary, #FFFFFF);
  --color-bg-secondary: #F9FAFB;
  --color-bg-tertiary: #F3F4F6;
  --color-text: var(--color-text-primary, #111827);
  --color-text-secondary: #4B5563;
  --color-text-muted: #6B7280;
  --color-border: #E5E7EB;
  --color-border-light: #F3F4F6;
  --shadow-card: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-elevated: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

  --ui-success: var(--color-accent-success, #15803D);
  --ui-success-light: var(--color-accent-success-light, rgba(34, 197, 94, 0.1));
  --ui-warning: var(--color-accent-warning, #B45309);
  --ui-warning-light: var(--color-accent-warning-light, rgba(245, 158, 11, 0.1));
  --ui-danger: var(--color-accent-danger, #B91C1C);
  --ui-danger-light: var(--color-accent-danger-light, rgba(239, 68, 68, 0.08));
  --ui-info: var(--color-accent-info, #1D4ED8);
  --ui-info-light: var(--color-accent-info-light, rgba(59, 130, 246, 0.08));
}

/* ----------------------------------------
   Button
   ---------------------------------------- */
.ui-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-weight: 500;
  line-height: 1.5;
  border: 1px solid transparent;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
  white-space: nowrap;
}

.ui-btn:focus-visible {
  outline: 2px solid var(--color-brand);
  outline-offset: 2px;
}

.ui-btn:disabled, .ui-btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Sizes */
.ui-btn-sm { padding: 0.375rem 0.75rem; font-size: 0.8125rem; }
.ui-btn-md { padding: 0.5rem 1rem; font-size: 0.875rem; }
.ui-btn-lg { padding: 0.625rem 1.5rem; font-size: 1rem; }

/* Primary */
.ui-btn-primary {
  color: var(--color-on-brand);
  background: var(--color-brand);
  border-color: var(--color-brand);
}
[data-theme="light"] .ui-btn-primary {
  color: var(--color-on-brand);
}
.ui-btn-primary:hover:not(:disabled) {
  color: var(--color-on-brand);
  background: var(--color-brand-hover);
  border-color: var(--color-brand-hover);
  transform: translateY(-1px);
}
[data-theme="light"] .ui-btn-primary:hover:not(:disabled) {
  color: var(--color-on-brand);
}

/* Secondary */
.ui-btn-secondary {
  color: var(--color-text);
  background-color: var(--color-bg-secondary);
  border-color: var(--color-border);
}
.ui-btn-secondary:hover:not(:disabled) {
  background-color: var(--color-border);
  color: var(--color-text);
}

/* Destructive */
.ui-btn-destructive {
  color: var(--color-bg, #fff);
  background-color: var(--ui-danger);
}
.ui-btn-destructive:hover:not(:disabled) {
  color: var(--color-bg, #fff);
  background-color: var(--ui-danger-hover, #dc2626);
  transform: translateY(-1px);
}

/* Outline */
.ui-btn-outline {
  color: var(--color-text);
  background-color: transparent;
  border-color: var(--color-border);
}
.ui-btn-outline:hover:not(:disabled) {
  color: var(--color-text);
  background-color: var(--color-bg-secondary);
  border-color: var(--color-text-muted);
}

/* Ghost */
.ui-btn-ghost {
  color: var(--color-text-secondary);
  background-color: transparent;
}
.ui-btn-ghost:hover:not(:disabled) {
  background-color: var(--color-bg-secondary);
  color: var(--color-text);
}

/* Link */
.ui-btn-link {
  color: var(--color-brand);
  background-color: transparent;
  text-decoration: underline;
  padding: 0;
}
.ui-btn-link:hover:not(:disabled) {
  color: var(--color-brand-hover);
}

/* Icon-only */
.ui-btn-icon {
  padding: 0.5rem;
  aspect-ratio: 1;
}
.ui-btn-icon.ui-btn-sm { padding: 0.375rem; }
.ui-btn-icon.ui-btn-lg { padding: 0.625rem; }

/* Loading */
.ui-btn-loading { position: relative; }
.ui-btn-spinner {
  display: inline-block;
  width: 1em;
  height: 1em;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: ui-spin 0.6s linear infinite;
}
@keyframes ui-spin { to { transform: rotate(360deg); } }

/* ----------------------------------------
   Input
   ---------------------------------------- */
.ui-input {
  display: flex;
  align-items: center;
  width: 100%;
  height: 2.5rem;
  padding: 0.5rem 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  outline: none;
}
.ui-input::placeholder { color: var(--color-text-muted); }
.ui-input:hover { border-color: var(--color-text-muted); }
.ui-input:focus {
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px var(--color-brand-subtle);
}
.ui-input:disabled { opacity: 0.5; cursor: not-allowed; }
.ui-input-error { border-color: var(--ui-danger); }
.ui-input-error:focus { box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1); }
.ui-input-error-msg {
  font-size: 0.75rem;
  color: var(--ui-danger);
  margin-top: 0.25rem;
}

/* ----------------------------------------
   Label
   ---------------------------------------- */
.ui-label {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: 0.375rem;
}
.ui-label-asterisk { color: var(--ui-danger); }

/* ----------------------------------------
   Textarea
   ---------------------------------------- */
.ui-textarea {
  display: block;
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  resize: vertical;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  outline: none;
}
.ui-textarea::placeholder { color: var(--color-text-muted); }
.ui-textarea:hover { border-color: var(--color-text-muted); }
.ui-textarea:focus {
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px var(--color-brand-subtle);
}
.ui-textarea:disabled { opacity: 0.5; cursor: not-allowed; }
.ui-textarea-error { border-color: var(--ui-danger); }
.ui-textarea-error:focus { box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1); }

/* ----------------------------------------
   Select
   ---------------------------------------- */
.ui-select {
  display: block;
  width: 100%;
  height: 2.5rem;
  padding: 0.5rem 0.75rem;
  padding-right: 2rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23A0A0A0' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 1em;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  outline: none;
}
.ui-select:hover { border-color: var(--color-text-muted); }
.ui-select:focus {
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px var(--color-brand-subtle);
}
.ui-select:disabled { opacity: 0.5; cursor: not-allowed; }
.ui-select-error { border-color: var(--ui-danger); }
.ui-select-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 50;
  margin-top: 0.25rem;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-elevated);
  padding: 0.25rem 0;
  max-height: 15rem;
  overflow-y: auto;
}
.ui-select-option {
  display: block;
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background-color 0.15s ease;
}
.ui-select-option:hover {
  background-color: var(--color-bg-secondary);
}
.ui-select-option-active {
  color: var(--color-brand);
  background-color: rgba(5, 242, 242, 0.05);
}

/* ----------------------------------------
   Checkbox
   ---------------------------------------- */
.ui-checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text);
  cursor: pointer;
}
.ui-checkbox {
  width: 1rem;
  height: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 0.25rem;
  accent-color: var(--color-brand);
  cursor: pointer;
}

/* ----------------------------------------
   Badge
   ---------------------------------------- */
.ui-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.125rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1;
  border-radius: 9999px;
  border: 1px solid;
  white-space: nowrap;
}
.ui-badge-default { background-color: var(--color-bg-secondary); color: var(--color-text-secondary); border-color: var(--color-border); }
.ui-badge-primary { background-color: var(--color-brand-subtle); color: var(--color-brand); border-color: currentColor; }
.ui-badge-success { background: var(--ui-success-light); color: var(--ui-success); border-color: rgba(22,163,74,0.25); }
.ui-badge-warning { background: var(--ui-warning-light); color: var(--ui-warning); border-color: rgba(245,158,11,0.25); }
.ui-badge-danger { background: var(--ui-danger-light); color: var(--ui-danger); border-color: rgba(220,38,38,0.25); }
.ui-badge-accent { background-color: var(--color-brand-subtle); color: var(--color-brand); border-color: currentColor; }

/* ----------------------------------------
   Separator
   ---------------------------------------- */
.ui-separator {
  height: 1px;
  width: 100%;
  background-color: var(--color-border);
  margin: 1rem 0;
}
.ui-separator-vertical {
  height: auto;
  width: 1px;
  align-self: stretch;
  margin: 0 1rem;
}

/* ----------------------------------------
   Progress
   ---------------------------------------- */
.ui-progress { width: 100%; }
.ui-progress-label {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.25rem;
}
.ui-progress-track {
  width: 100%;
  height: 0.5rem;
  background-color: var(--color-bg-secondary);
  border-radius: 9999px;
  overflow: hidden;
}
.ui-progress-bar {
  height: 100%;
  background: var(--color-brand);
  border-radius: 9999px;
  transition: width 0.2s ease;
}
.ui-progress-success { background: var(--ui-success); }
.ui-progress-warning { background: var(--ui-warning); }
.ui-progress-danger { background: var(--ui-danger); }

/* ----------------------------------------
   Alert
   ---------------------------------------- */
.ui-alert {
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  margin-bottom: 1rem;
  border: 1px solid;
}
.ui-alert-row {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}
.ui-alert-icon { flex-shrink: 0; margin-top: 2px; }
.ui-alert-content { flex: 1; }
.ui-alert-title { font-weight: 600; margin-bottom: 0.25rem; }
.ui-alert-dismiss {
  flex-shrink: 0;
  background: none;
  border: none;
  color: inherit;
  opacity: 0.7;
  cursor: pointer;
  padding: 0.25rem;
}
.ui-alert-dismiss:hover { opacity: 1; }
.ui-alert-success { background: var(--ui-success-light); color: var(--ui-success); border-color: rgba(22,163,74,0.2); }
.ui-alert-error { background: var(--ui-danger-light); color: var(--ui-danger); border-color: rgba(220,38,38,0.2); }
.ui-alert-warning { background: var(--ui-warning-light); color: var(--ui-warning); border-color: rgba(245,158,11,0.2); }
.ui-alert-info { background: var(--ui-info-light); color: var(--ui-info); border-color: rgba(59,130,246,0.2); }

/* ----------------------------------------
   Card
   ---------------------------------------- */
.ui-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  color: inherit;
  text-decoration: none;
}
.ui-card-accent { position: relative; }
.ui-card-accent::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--color-brand);
}
.ui-card-hover { transition: all 0.15s ease; }
.ui-card-hover:hover { transform: translateY(-2px); box-shadow: var(--shadow-elevated); }
.ui-card-header { padding: 1rem 1.25rem; border-bottom: 1px solid var(--color-border-light); }
.ui-card-title { font-size: 1rem; font-weight: 600; color: var(--color-text); }
.ui-card-description { font-size: 0.875rem; color: var(--color-text-secondary); margin-top: 0.25rem; }
.ui-card-body { padding: 1rem 1.25rem; }
.ui-card-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--color-border-light);
  background-color: var(--color-bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
}

/* ----------------------------------------
   Dialog
   ---------------------------------------- */
.ui-dialog-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 40;
}

.ui-dialog-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 50;
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-elevated);
  display: flex;
  flex-direction: column;
  max-height: 90vh;
  overflow: hidden;
  width: 90vw;
}

.ui-dialog-panel-sm { max-width: 24rem; }
.ui-dialog-panel-md { max-width: 32rem; }
.ui-dialog-panel-lg { max-width: 48rem; }
.ui-dialog-panel-xl { max-width: 64rem; }

.ui-dialog-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border-light);
}

.ui-dialog-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.ui-dialog-description {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-top: 0.25rem;
}

.ui-dialog-body {
  padding: 1rem 1.25rem;
  overflow-y: auto;
  flex: 1;
}

.ui-dialog-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--color-border-light);
  background-color: var(--color-bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
}

.ui-dialog-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border: none;
  background: transparent;
  color: var(--color-text-secondary, #999);
  border-radius: 0.375rem;
  cursor: pointer;
  transition: all 0.15s ease;
  flex-shrink: 0;
  font-size: 1rem;
}
[data-theme="light"] .ui-dialog-close {
  color: var(--color-text-secondary, #666);
}

.ui-dialog-close:hover {
  background-color: var(--color-bg-secondary);
  color: var(--color-text);
}

/* ----------------------------------------
   Toast
   ---------------------------------------- */
.ui-toast-container {
  position: fixed;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem;
  pointer-events: none;
  max-width: 24rem;
  width: 100%;
}

.ui-toast-bottom-right { bottom: 0; right: 0; }
.ui-toast-bottom-left  { bottom: 0; left: 0; }
.ui-toast-top-right    { top: 0; right: 0; }
.ui-toast-top-left     { top: 0; left: 0; }
.ui-toast-top-center   { top: 0; left: 50%; transform: translateX(-50%); }
.ui-toast-bottom-center { bottom: 0; left: 50%; transform: translateX(-50%); }

.ui-toast {
  pointer-events: all;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  border: 1px solid var(--color-border-light);
  background: var(--color-bg);
  box-shadow: var(--shadow-elevated);
  font-size: 0.875rem;
  color: var(--color-text);
}

.ui-toast-success {
  background-color: var(--ui-success-light);
  border-color: rgba(16, 185, 129, 0.3);
  color: var(--ui-success);
}

.ui-toast-destructive {
  background-color: var(--ui-danger-light);
  border-color: rgba(239, 68, 68, 0.3);
  color: var(--ui-danger);
}

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

.ui-toast-title {
  font-weight: 600;
  line-height: 1.375;
}

.ui-toast-description {
  color: var(--color-text-secondary);
  margin-top: 0.25rem;
  line-height: 1.375;
}

.ui-toast-action {
  margin-top: 0.5rem;
}

.ui-toast-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border: none;
  background: transparent;
  color: currentColor;
  opacity: 0.6;
  border-radius: 0.25rem;
  cursor: pointer;
  transition: opacity 0.15s ease;
  flex-shrink: 0;
}

.ui-toast-close:hover { opacity: 1; }

/* ----------------------------------------
   Tabs
   ---------------------------------------- */
.ui-tabs {
  width: 100%;
}
.ui-tabs-list {
  display: flex;
  gap: 0.25rem;
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: 1rem;
  padding-bottom: 0;
}
.ui-tabs-trigger {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 0.75rem;
  margin-bottom: -1px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.ui-tabs-trigger:hover {
  color: var(--color-text);
}
.ui-tabs-trigger:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.ui-tabs-trigger-active {
  color: var(--color-text);
  border-bottom-color: var(--color-brand);
}
.ui-tabs-content {
  animation: ui-fadeIn 0.15s ease;
}
@keyframes ui-fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ----------------------------------------
   Table
   ---------------------------------------- */
.ui-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.ui-table-caption {
  caption-side: top;
  text-align: left;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  padding: 0.5rem 0 0.75rem;
}
.ui-table-header {
  background-color: var(--color-bg-tertiary);
}
.ui-table-head {
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--color-border-light);
  white-space: nowrap;
}
.ui-table-body {}
.ui-table-row {
  border-bottom: 1px solid var(--color-border-light);
  transition: background-color 0.15s ease;
}
.ui-table-row:last-child { border-bottom: none; }
.ui-table-row:hover { background-color: var(--color-bg-tertiary); }
.ui-table-cell {
  padding: 0.75rem 1rem;
  color: var(--color-text);
  vertical-align: middle;
}
.ui-table-empty {
  padding: 2rem 1rem;
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

/* ----------------------------------------
   Dropdown
   ---------------------------------------- */
.ui-dropdown {
  position: relative;
  display: inline-block;
}
.ui-dropdown-trigger {
  cursor: pointer;
}
.ui-dropdown-content {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 50;
  min-width: 10rem;
  margin-top: 0.25rem;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-elevated);
  padding: 0.25rem 0;
}
.ui-dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background-color 0.15s ease;
}
.ui-dropdown-item:hover {
  background-color: var(--color-bg-secondary);
}
.ui-dropdown-item-danger {
  color: var(--ui-danger);
}
.ui-dropdown-item-danger:hover {
  background-color: rgba(239, 68, 68, 0.1);
}
.ui-dropdown-separator {
  height: 1px;
  background-color: var(--color-border-light);
  margin: 0.25rem 0;
}

/* ----------------------------------------
   Accordion
   ---------------------------------------- */
.ui-accordion {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.ui-accordion-item {
  border-bottom: 1px solid var(--color-border-light);
}
.ui-accordion-item:last-child {
  border-bottom: none;
}
.ui-accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 1rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background-color 0.15s ease;
}
.ui-accordion-trigger:hover {
  background-color: var(--color-bg-tertiary);
}
.ui-accordion-chevron {
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}
.ui-accordion-trigger-open .ui-accordion-chevron {
  transform: rotate(180deg);
}
.ui-accordion-collapse {
  overflow: hidden;
}
.ui-accordion-content {
  padding: 0 1.25rem 1rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* ----------------------------------------
   Sheet (Drawer)
   ---------------------------------------- */
.ui-sheet {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
}
.ui-sheet-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  pointer-events: auto;
}
.ui-sheet-panel {
  position: fixed;
  background-color: var(--color-bg);
  box-shadow: var(--shadow-elevated);
  pointer-events: auto;
  display: flex;
  flex-direction: column;
}
.ui-sheet-right {
  top: 0; right: 0; bottom: 0;
  width: 24rem;
  max-width: 90vw;
}
.ui-sheet-left {
  top: 0; left: 0; bottom: 0;
  width: 24rem;
  max-width: 90vw;
}
.ui-sheet-top {
  top: 0; left: 0; right: 0;
  height: 50vh;
  max-height: 90vh;
}
.ui-sheet-bottom {
  bottom: 0; left: 0; right: 0;
  height: 50vh;
  max-height: 90vh;
}
.ui-sheet-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-border-light);
  flex-shrink: 0;
}
.ui-sheet-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}
.ui-sheet-description {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-top: 0.25rem;
}
.ui-sheet-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  padding: 0.25rem;
  line-height: 1;
}
.ui-sheet-close:hover {
  color: var(--color-text);
}
.ui-sheet-body {
  flex: 1;
  overflow-y: auto;
  padding: 1.25rem 1.5rem;
}
.ui-sheet-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
  flex-shrink: 0;
}

/* ----------------------------------------
   Popover
   ---------------------------------------- */
.ui-popover {
  position: relative;
  display: inline-block;
}
.ui-popover-trigger {
  cursor: pointer;
}
.ui-popover-content {
  position: absolute;
  z-index: 50;
  min-width: 12rem;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-elevated);
  padding: 0.75rem;
}
.ui-popover-bottom {
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 0.5rem;
}
.ui-popover-top {
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: 0.5rem;
}
.ui-popover-right {
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  margin-left: 0.5rem;
}
.ui-popover-left {
  right: 100%;
  top: 50%;
  transform: translateY(-50%);
  margin-right: 0.5rem;
}

/* ----------------------------------------
   VVM Additions: Glow Effects
   ---------------------------------------- */
.ui-btn-primary:focus-visible {
  box-shadow: 0 0 0 3px var(--color-brand-subtle), var(--glow-accent-sm, 0 0 10px rgba(5, 242, 242, 0.2));
}

.ui-input:focus {
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px var(--color-brand-subtle), var(--glow-accent-sm, 0 0 10px rgba(5, 242, 242, 0.2));
}

.ui-textarea:focus {
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px var(--color-brand-subtle), var(--glow-accent-sm, 0 0 10px rgba(5, 242, 242, 0.2));
}

.ui-select:focus {
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px var(--color-brand-subtle), var(--glow-accent-sm, 0 0 10px rgba(5, 242, 242, 0.2));
}

/* ----------------------------------------
   Datepicker
   ---------------------------------------- */
.ui-datepicker { position: relative; width: 100%; }
.ui-datepicker-trigger {
  cursor: pointer;
  justify-content: flex-start;
  gap: 0.5rem;
  user-select: none;
}
.ui-datepicker-trigger:focus { border-color: var(--color-brand); box-shadow: 0 0 0 3px var(--color-brand-subtle); }
.ui-datepicker-active { border-color: var(--color-brand); }
.ui-datepicker-icon { color: var(--color-text-muted); font-size: 0.875rem; flex-shrink: 0; }
.ui-datepicker-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 4px;
  z-index: 9999;
  width: 280px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  box-shadow: 0 10px 25px -5px rgba(0,0,0,.15), 0 4px 6px -2px rgba(0,0,0,.08);
  padding: 0.75rem;
}
.ui-datepicker-flip .ui-datepicker-dropdown {
  top: auto;
  bottom: 100%;
  margin-top: 0;
  margin-bottom: 4px;
}
.ui-dialog-panel:has(.ui-datepicker-active),
.ui-dialog-body:has(.ui-datepicker-active),
.ui-card:has(.ui-datepicker-active),
.ui-card-body:has(.ui-datepicker-active) { overflow: visible; }
.ui-datepicker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}
.ui-datepicker-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border: none;
  background: none;
  color: var(--color-text-secondary);
  border-radius: 0.375rem;
  cursor: pointer;
  font-size: 0.75rem;
  transition: background 0.1s, color 0.1s;
}
.ui-datepicker-nav:hover { background: var(--color-bg-secondary); color: var(--color-text); }
.ui-datepicker-month-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 0.375rem;
  transition: background 0.1s;
}
.ui-datepicker-month-label:hover { background: var(--color-bg-secondary); }
.ui-datepicker-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.ui-datepicker-weekdays span { padding: 0.25rem 0; }
.ui-datepicker-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}
.ui-datepicker-day {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 1;
  border: none;
  background: none;
  font-size: 0.8rem;
  color: var(--color-text);
  border-radius: 0.375rem;
  cursor: pointer;
  transition: background 0.1s, color 0.1s;
  font-weight: 500;
}
.ui-datepicker-day:hover:not(.disabled):not(.selected) { background: var(--color-bg-secondary); }
.ui-datepicker-day.other { color: var(--color-text-muted); opacity: 0.4; }
.ui-datepicker-day.today:not(.selected) {
  background: var(--color-bg-secondary);
  font-weight: 700;
  color: var(--color-brand);
}
.ui-datepicker-day.selected {
  background: var(--color-brand);
  color: var(--color-on-brand);
  font-weight: 600;
}
.ui-datepicker-day.disabled {
  opacity: 0.3;
  cursor: not-allowed;
}
.ui-datepicker-months {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 0.25rem 0;
}
.ui-datepicker-month-btn {
  padding: 0.5rem 0.25rem;
  font-size: 0.8rem;
  font-weight: 500;
  border: none;
  background: none;
  color: var(--color-text);
  border-radius: 0.375rem;
  cursor: pointer;
  transition: background 0.1s;
}
.ui-datepicker-month-btn:hover { background: var(--color-bg-secondary); }
.ui-datepicker-month-btn.active { background: var(--color-brand); color: var(--color-on-brand); font-weight: 600; }
.ui-datepicker-time {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  border-top: 1px solid var(--color-border);
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.ui-datepicker-time i { font-size: 0.75rem; }
.ui-datepicker-time-select {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 0.375rem;
  padding: 0.25rem 0.375rem;
  font-size: 0.8rem;
  color: var(--color-text);
  cursor: pointer;
  outline: none;
  min-width: 3.5rem;
}
.ui-datepicker-time-select:focus { border-color: var(--color-brand); }
.ui-datepicker-time span { font-weight: 600; color: var(--color-text-secondary); }
.ui-datepicker-confirm {
  margin-left: auto;
  padding: 0.25rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--color-brand);
  color: var(--color-on-brand);
  border: none;
  border-radius: 0.375rem;
  cursor: pointer;
  transition: opacity 0.1s;
}
.ui-datepicker-confirm:hover { opacity: 0.85; }
.ui-datepicker-confirm:disabled { opacity: 0.3; cursor: not-allowed; }

.ui-card-accent::before {
  background: linear-gradient(90deg, var(--vvm-cyan, #05F2F2), var(--vvm-teal, #03A6A6));
}

[data-theme="light"] .ui-card-accent::before {
  background: linear-gradient(90deg, var(--color-brand), var(--color-brand-hover));
}

/* ============================================
   Phase 2 Components
   ============================================ */

/* ── Loading Inline (A1) ── */
.ui-loading-inline { display: inline-flex; align-items: center; gap: 0.5rem; }
.ui-loading-spinner {
  width: 1rem; height: 1rem;
  border: 2px solid var(--color-border, #2A2A2A);
  border-top-color: var(--color-brand, #05F2F2);
  border-radius: 50%;
  animation: ui-spin 0.6s linear infinite;
}
.ui-loading-inline-sm .ui-loading-spinner { width: 0.75rem; height: 0.75rem; border-width: 1.5px; }
.ui-loading-inline-lg .ui-loading-spinner { width: 1.5rem; height: 1.5rem; border-width: 2.5px; }
.ui-loading-text { font-size: 0.875rem; color: var(--color-text-muted); }
@keyframes ui-spin { to { transform: rotate(360deg); } }

/* ── KPI Card (A2) ── */
.ui-kpi { background: var(--color-bg-secondary); border: 1px solid var(--color-border-light); border-radius: var(--radius-lg, 0.75rem); padding: 1.25rem; transition: box-shadow 0.2s; }
.ui-kpi:hover { box-shadow: var(--shadow-md); }
.ui-kpi-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 0.75rem; }
.ui-kpi-icon { width: 2.5rem; height: 2.5rem; border-radius: var(--radius-md); background: linear-gradient(135deg, rgba(5,242,242,0.15), rgba(3,166,166,0.1)); display: flex; align-items: center; justify-content: center; color: var(--color-brand); }
[data-theme="light"] .ui-kpi-icon { background: var(--color-brand-subtle); }
.ui-kpi-icon svg { width: 1.25rem; height: 1.25rem; }
.ui-kpi-trend { font-size: 0.75rem; font-weight: 500; display: inline-flex; align-items: center; gap: 0.25rem; }
.ui-kpi-trend-up { color: var(--ui-success); }
.ui-kpi-trend-down { color: var(--ui-danger); }
.ui-kpi-value { font-size: 1.5rem; font-weight: 700; color: var(--color-text); line-height: 1.2; }
.ui-kpi-label { font-size: 0.8125rem; color: var(--color-text-muted); margin-top: 0.25rem; }
.ui-kpi-footer { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--color-border-light); }
.ui-kpi-link { font-size: 0.8125rem; font-weight: 500; color: var(--color-brand); display: inline-flex; align-items: center; gap: 0.375rem; transition: color 0.15s; text-decoration: none; }
.ui-kpi-link:hover { color: var(--color-brand-hover, #05F2DB); }

/* ── Empty State (A3) ── */
.ui-empty-state { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 4rem 1.5rem; }
.ui-empty-state-icon { width: 3rem; height: 3rem; border-radius: 50%; background: var(--color-bg-tertiary); display: flex; align-items: center; justify-content: center; color: var(--color-text-muted); font-size: 1.25rem; margin-bottom: 1rem; }
.ui-empty-state-title { font-size: 0.9375rem; font-weight: 600; color: var(--color-text-secondary); margin-bottom: 0.5rem; }
.ui-empty-state-description { font-size: 0.8125rem; color: var(--color-text-muted); max-width: 20rem; }
.ui-empty-state-actions { display: flex; gap: 0.75rem; margin-top: 1.5rem; }

/* ── Loading Screen (A4) ── */
.ui-loading-screen {
  position: fixed; inset: 0; z-index: 9999;
  display: flex; align-items: center; justify-content: center;
  background: var(--ui-loading-screen-bg, rgba(13,13,13,0.95));
  backdrop-filter: blur(4px);
}
[data-theme="light"] .ui-loading-screen { background: var(--ui-loading-screen-bg, rgba(255,255,255,0.95)); }
.ui-loading-screen.ui-loading-screen-hidden { opacity: 0; visibility: hidden; transition: opacity 0.2s ease, visibility 0.2s ease; }
.ui-loading-screen.ui-loading-screen-hidden.active { opacity: 1; visibility: visible; }
.ui-loading-screen.htmx-indicator { opacity: 0; transition: opacity 0.2s ease-in; }
.ui-loading-screen.htmx-indicator.htmx-request { opacity: 1; }
.ui-loading-screen-content { display: flex; flex-direction: column; align-items: center; gap: 1.5rem; }
.ui-loading-screen-logo { position: relative; width: 4rem; height: 4rem; display: flex; align-items: center; justify-content: center; }
.ui-loading-screen-ring {
  position: absolute; inset: 0;
  border: 2px solid transparent;
  border-top-color: var(--color-brand, #05F2F2);
  border-radius: 50%;
  animation: ui-spin 0.8s linear infinite;
}
.ui-loading-screen-img { width: 2rem; height: 2rem; object-fit: contain; }
.ui-loading-screen-text { font-size: 0.875rem; color: var(--color-text-muted); }

/* ── Dropdown Filter (A5) ── */
.ui-dropdown-filter { position: relative; }
.ui-dropdown-filter-trigger {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 0.75rem; border-radius: var(--radius-md, 0.5rem);
  font-size: 0.8125rem; font-weight: 500;
  color: var(--color-text-secondary); background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-light);
  cursor: pointer; transition: all 0.15s;
}
.ui-dropdown-filter-trigger:hover { color: var(--color-text); border-color: var(--color-border); }
.ui-dropdown-filter-active .ui-dropdown-filter-trigger { color: var(--color-brand); border-color: var(--color-brand-border); background: var(--color-brand-subtle); }
.ui-dropdown-filter-icon { width: 1rem; height: 1rem; flex-shrink: 0; }
.ui-dropdown-filter-panel {
  position: absolute; top: calc(100% + 4px); left: 0; z-index: 50;
  min-width: 12rem; padding: 0.25rem;
  background: var(--color-bg-elevated, #222); border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md, 0.5rem); box-shadow: var(--shadow-lg);
}
.ui-dropdown-filter-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.5rem 0.75rem; border-radius: var(--radius-sm, 0.375rem);
  font-size: 0.8125rem; color: var(--color-text-secondary);
  cursor: pointer; transition: all 0.15s; text-decoration: none;
}
.ui-dropdown-filter-item:hover { color: var(--color-text); background: var(--color-bg-hover, rgba(255,255,255,0.05)); }
.ui-dropdown-filter-item.active { color: var(--color-brand); background: var(--color-brand-subtle); }
.ui-dropdown-filter-item-count { font-size: 0.75rem; color: var(--color-text-muted); }
.ui-dropdown-filter-divider { height: 1px; background: var(--color-border-light); margin: 0.25rem 0; }

/* ── Filter Toolbar (A6) ── */
.ui-filter-toolbar { display: flex; align-items: center; gap: 0.75rem; padding: 0.75rem 0; flex-wrap: wrap; }

/* ── Filter Chips (A7) ── */
.ui-filter-chips { display: flex; gap: 0.5rem; overflow-x: auto; padding: 0.75rem 0; -webkit-overflow-scrolling: touch; }
.ui-filter-chips::-webkit-scrollbar { display: none; }
.ui-filter-chip { white-space: nowrap; padding: 0.375rem 0.75rem; border-radius: 9999px; font-size: 0.8125rem; font-weight: 500; color: var(--color-text-muted); background: var(--color-bg-tertiary); border: 1px solid transparent; transition: all 0.15s; cursor: pointer; text-decoration: none; }
.ui-filter-chip:hover { color: var(--color-text); background: var(--color-bg-elevated); }
.ui-filter-chip.active { color: var(--color-brand); background: var(--color-brand-subtle); border-color: var(--color-brand-border); }

/* ── Pagination (B1) ── */
.ui-pagination { display: flex; align-items: center; justify-content: space-between; padding: 1rem 0; }
.ui-pagination-info { font-size: 0.8125rem; color: var(--color-text-muted); }
.ui-pagination-controls { display: flex; align-items: center; gap: 0.25rem; }
.ui-pagination-btn { display: inline-flex; align-items: center; justify-content: center; min-width: 2rem; height: 2rem; padding: 0 0.5rem; border-radius: var(--radius-md, 0.5rem); font-size: 0.8125rem; font-weight: 500; color: var(--color-text-muted); transition: all 0.15s; cursor: pointer; text-decoration: none; }
.ui-pagination-btn:hover:not(.disabled):not(.active) { color: var(--color-text); background: var(--color-bg-hover); }
.ui-pagination-btn.active { color: var(--color-on-brand); background: var(--color-brand, #05F2F2); font-weight: 600; }
.ui-pagination-btn.disabled { color: var(--color-text-muted); opacity: 0.4; cursor: not-allowed; }
.ui-pagination-ellipsis { padding: 0 0.25rem; color: var(--color-text-muted); }

/* ── Stat Card (B2) ── */
.ui-stat-card { background: var(--color-bg-secondary); border: 1px solid var(--color-border-light); border-radius: var(--radius-lg, 0.75rem); padding: 1rem; }
.ui-stat-card-row { display: flex; align-items: center; gap: 0.75rem; }
.ui-stat-card-icon { width: 2.25rem; height: 2.25rem; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 0.875rem; }
.ui-stat-card-body { min-width: 0; flex: 1; }
.ui-stat-card-value { font-size: 1.125rem; font-weight: 600; color: var(--color-text); line-height: 1.2; }
.ui-stat-card-label { font-size: 0.75rem; color: var(--color-text-muted); }
.ui-stat-icon-brand { background: var(--color-brand-subtle); color: var(--color-brand); }
.ui-stat-icon-success { background: var(--ui-success-light); color: var(--ui-success); }
.ui-stat-icon-danger { background: var(--ui-danger-light); color: var(--ui-danger); }
.ui-stat-icon-warning { background: var(--ui-warning-light); color: var(--ui-warning); }
.ui-stat-icon-info { background: var(--ui-info-light); color: var(--ui-info); }
.ui-stat-icon-violet { background: rgba(167,139,250,0.1); color: #a78bfa; }

/* ── Avatar (B3) ── */
.ui-avatar { display: inline-flex; align-items: center; justify-content: center; width: 2.5rem; height: 2.5rem; border-radius: 50%; background: var(--color-bg-tertiary); overflow: hidden; flex-shrink: 0; }
.ui-avatar-xs { width: 1.5rem; height: 1.5rem; font-size: 0.625rem; }
.ui-avatar-sm { width: 2rem; height: 2rem; font-size: 0.6875rem; }
.ui-avatar-lg { width: 3rem; height: 3rem; font-size: 1rem; }
.ui-avatar-xl { width: 4rem; height: 4rem; font-size: 1.25rem; }
.ui-avatar-img { width: 100%; height: 100%; object-fit: cover; }
.ui-avatar-initials { font-size: 0.8125rem; font-weight: 600; color: var(--color-text-secondary); text-transform: uppercase; }
.ui-avatar-fallback { color: var(--color-text-muted); font-size: 0.875rem; }

/* ── Tooltip (B4) ── */
.ui-tooltip-wrapper { position: relative; display: inline-flex; }
.ui-tooltip-wrapper::after {
  content: attr(data-tooltip);
  position: absolute; z-index: 50;
  padding: 0.375rem 0.625rem; border-radius: var(--radius-sm, 0.375rem);
  font-size: 0.75rem; font-weight: 500; white-space: nowrap;
  background: var(--color-bg-elevated, #222); color: var(--color-text);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-lg);
  pointer-events: none; opacity: 0; transition: opacity 0.15s;
}
.ui-tooltip-wrapper:hover::after { opacity: 1; }
.ui-tooltip-wrapper[data-tooltip-pos="top"]::after { bottom: calc(100% + 6px); left: 50%; transform: translateX(-50%); }
.ui-tooltip-wrapper[data-tooltip-pos="bottom"]::after { top: calc(100% + 6px); left: 50%; transform: translateX(-50%); }
.ui-tooltip-wrapper[data-tooltip-pos="left"]::after { right: calc(100% + 6px); top: 50%; transform: translateY(-50%); }
.ui-tooltip-wrapper[data-tooltip-pos="right"]::after { left: calc(100% + 6px); top: 50%; transform: translateY(-50%); }

/* ── Toggle (B5) ── */
.ui-toggle { display: inline-flex; align-items: center; gap: 0.5rem; cursor: pointer; position: relative; }
.ui-toggle-disabled { opacity: 0.5; cursor: not-allowed; }
.ui-toggle-input { position: absolute; opacity: 0; width: 0; height: 0; }
.ui-toggle-track { position: relative; width: 2.5rem; height: 1.25rem; border-radius: 9999px; background: var(--color-bg-tertiary); border: 1px solid var(--color-border); transition: background 0.2s, border-color 0.2s; flex-shrink: 0; }
.ui-toggle-thumb { position: absolute; top: 2px; left: 2px; width: 0.875rem; height: 0.875rem; border-radius: 50%; background: var(--color-text-muted); transition: transform 0.2s, background 0.2s; }
.ui-toggle-input:checked + .ui-toggle-track { background: var(--color-brand); border-color: var(--color-brand); }
.ui-toggle-input:checked + .ui-toggle-track .ui-toggle-thumb { transform: translateX(1.25rem); background: var(--color-on-brand); }
.ui-toggle-label { font-size: 0.8125rem; color: var(--color-text-secondary); }
.ui-toggle-sm .ui-toggle-track { width: 2rem; height: 1rem; }
.ui-toggle-sm .ui-toggle-thumb { width: 0.625rem; height: 0.625rem; }
.ui-toggle-sm .ui-toggle-input:checked + .ui-toggle-track .ui-toggle-thumb { transform: translateX(1rem); }

/* ── Skeleton (B6) ── */
.ui-skeleton { background: var(--color-bg-tertiary); border-radius: var(--radius-sm, 0.375rem); animation: ui-shimmer 1.5s ease-in-out infinite; }
.ui-skeleton-line { height: 0.875rem; margin-bottom: 0.5rem; }
.ui-skeleton-line:last-child { width: 60%; }
.ui-skeleton-circle { border-radius: 50%; width: 2.5rem; height: 2.5rem; }
.ui-skeleton-card { height: 8rem; border-radius: var(--radius-lg, 0.75rem); }
@keyframes ui-shimmer {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ── Form Field ── */
.ui-form-field { display: flex; flex-direction: column; gap: 0.375rem; }
.ui-form-field-help { font-size: 0.75rem; color: var(--color-text-muted); }
.ui-form-field-error-msg { font-size: 0.75rem; color: var(--ui-danger, #f87171); }

/* ----------------------------------------
   Radio
   ---------------------------------------- */
.ui-radio-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.ui-radio {
  appearance: none;
  width: 1rem;
  height: 1rem;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.ui-radio:checked {
  border-color: var(--color-brand);
  background: var(--color-brand);
  box-shadow: inset 0 0 0 3px var(--color-bg);
}

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

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

.ui-radio-card {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.ui-radio-card:hover {
  border-color: var(--color-brand);
  background: var(--color-brand-subtle);
}

.ui-radio-card:has(.ui-radio:checked) {
  border-color: var(--color-brand);
  background: var(--color-brand-subtle);
}

.ui-radio-card-disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.ui-radio-card-content {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.ui-radio-card-title {
  font-weight: 500;
  color: var(--color-text);
}

.ui-radio-card-description {
  font-size: 0.875rem;
  color: var(--color-text-secondary, #999);
  margin: 0;
}

/* ----------------------------------------
   Page Header
   ---------------------------------------- */
.ui-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: var(--color-bg-secondary, #1A1A1A);
  border-bottom: 1px solid var(--color-border);
}

.ui-page-header-content {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.ui-page-header-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--color-text-muted, #666);
  margin-bottom: 0.25rem;
}

.ui-page-header-breadcrumb a {
  color: var(--color-text-secondary, #999);
  text-decoration: none;
}

.ui-page-header-breadcrumb a:hover {
  color: var(--color-brand);
}

.ui-page-header-breadcrumb i {
  font-size: 0.625rem;
}

.ui-page-header-title-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.ui-page-header-icon {
  font-size: 1.25rem;
  color: var(--color-brand);
}

.ui-page-header-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.ui-page-header-subtitle {
  font-size: 0.875rem;
  color: var(--color-text-secondary, #999);
  margin: 0;
}

.ui-page-header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ----------------------------------------
   Sidebar
   ---------------------------------------- */
.ui-sidebar {
  display: flex;
  flex-direction: column;
  background: var(--color-bg-secondary, #1A1A1A);
  border-right: 1px solid var(--color-border);
  height: 100%;
  overflow-y: auto;
}

.ui-sidebar-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
}

.ui-sidebar-logo {
  width: 2rem;
  height: 2rem;
  border-radius: 0.375rem;
  object-fit: cover;
}

.ui-sidebar-header-text {
  overflow: hidden;
}

.ui-sidebar-title {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ui-sidebar-subtitle {
  font-size: 0.75rem;
  color: var(--color-text-muted, #666);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ui-sidebar-nav {
  display: flex;
  flex-direction: column;
  padding: 0.5rem;
  gap: 0.125rem;
  flex: 1;
}

.ui-sidebar-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  color: var(--color-text-secondary, #999);
  text-decoration: none;
  font-size: 0.875rem;
  transition: all 0.15s ease;
}

.ui-sidebar-item:hover {
  background: var(--color-bg-hover, rgba(255,255,255,0.05));
  color: var(--color-text);
}

.ui-sidebar-item-active {
  background: var(--color-brand-subtle);
  color: var(--color-brand);
}

.ui-sidebar-item-icon {
  width: 1.25rem;
  text-align: center;
  flex-shrink: 0;
}

.ui-sidebar-item-label {
  flex: 1;
}

.ui-sidebar-item-badge {
  font-size: 0.6875rem;
}


/* ----------------------------------------
   Navbar
   ---------------------------------------- */
.ui-navbar {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 40;
}

.ui-navbar-transparent {
  background: transparent;
  border-bottom: none;
}

.ui-navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 4rem;
}

.ui-navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1.125rem;
}

.ui-navbar-logo {
  height: 2rem;
}

.ui-navbar-content {
  display: flex;
  align-items: center;
  gap: 1rem;
}