src/css/components.css

/* Bayan UI Components — token-driven only */

/* ── Navigation ── */
.site-nav {
  background: var(--color-nav-bg);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
}

.nav-link {
  position: relative;
  transition: color var(--transition-base);
  color: var(--color-text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  right: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link-external {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  text-decoration: none;
}

.nav-link-external::after {
  content: '↗';
  font-size: 0.85em;
  opacity: 0.7;
  position: static;
  width: auto;
  height: auto;
  background: none;
}

.mobile-drawer-link-external {
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-decoration: none;
  color: inherit;
}

.mobile-drawer-link-external::after {
  content: '↗';
  opacity: 0.65;
  font-size: 0.9em;
}

.footer-external-link {
  color: var(--color-text-secondary);
}

.footer-external-link:hover {
  color: var(--color-primary);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: background var(--transition-base), border-color var(--transition-base);
}

.theme-toggle:hover {
  background: var(--color-surface-elevated);
  border-color: var(--color-border-strong);
}

.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: background var(--transition-base);
}

.mobile-menu-btn:hover {
  background: var(--color-surface-elevated);
}

.mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  visibility: hidden;
}

.mobile-drawer.open {
  pointer-events: auto;
  visibility: visible;
}

.mobile-drawer-backdrop {
  position: absolute;
  inset: 0;
  background: var(--color-overlay);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.mobile-drawer.open .mobile-drawer-backdrop {
  opacity: 1;
}

.mobile-drawer-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(280px, 85vw);
  height: 100%;
  background: var(--color-surface);
  border-left: 1px solid var(--color-border);
  padding: var(--spacing-lg);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.mobile-drawer.open .mobile-drawer-panel {
  transform: translateX(0);
}

.mobile-drawer-link {
  display: block;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
  text-align: right;
  border: none;
  background: transparent;
  cursor: pointer;
  width: 100%;
  font-size: var(--font-size-body);
  font-family: inherit;
  transition: background var(--transition-base), color var(--transition-base);
}

.mobile-drawer-link:hover,
.mobile-drawer-link.active {
  background: var(--color-surface-elevated);
  color: var(--color-primary);
}

/* ── Cards ── */
.surface-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.card-hover {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card-hover:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-popover);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 1.5rem;
}

.feature-icon--spelling {
  background: var(--color-badge-spelling-bg);
  color: var(--color-error);
}

.feature-icon--grammar {
  background: var(--color-badge-grammar-bg);
  color: var(--color-warning);
}

.feature-icon--punctuation {
  background: var(--color-badge-punctuation-bg);
  color: var(--color-success);
}

.feature-icon--summarize {
  background: var(--color-summary-accent-bg);
  color: var(--color-secondary);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  right: 50%;
  transform: translateX(50%);
  padding: 4px 16px;
  border-radius: 20px;
  font-size: var(--font-size-label);
  font-weight: var(--font-weight-bold);
}

/* ── Editor shell ── */
.editor-shell {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.editor-tab {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-caption);
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: background var(--transition-base), color var(--transition-base);
  background: transparent;
  color: var(--color-text-secondary);
  min-height: 44px;
}

.editor-tab:hover {
  color: var(--color-text-primary);
  background: var(--color-surface-elevated);
}

.editor-tab.active {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: var(--color-text-inverse);
}

.editor-surface {
  background: var(--color-editor);
  color: var(--color-text-primary);
  min-height: 50vh;
  padding: var(--spacing-lg);
  font-size: var(--font-size-editor);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-editor);
  letter-spacing: var(--letter-spacing-arabic);
  direction: rtl;
  text-align: right;
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-y: auto;
  border-radius: var(--radius-md);
  margin: var(--spacing-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-editor);
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

@media (min-width: 768px) {
  .editor-surface { min-height: 60vh; }
}

@media (min-width: 1024px) {
  .editor-surface { min-height: 500px; }
}

.editor-surface:focus {
  outline: none;
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-editor), 0 0 0 3px var(--focus-ring);
}

.editor-surface[data-empty="true"]::before {
  content: attr(data-placeholder);
  color: var(--color-placeholder);
  font-style: italic;
  pointer-events: none;
  display: block;
}

.editor-surface.analyzing {
  opacity: 0.88;
}

.editor-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.editor-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  align-items: center;
}

.stat-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.stat-dot--spelling { background: var(--color-error); }
.stat-dot--grammar { background: var(--color-warning); }
.stat-dot--punctuation { background: var(--color-success); }

.editor-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

/* ── Buttons ── */
.btn-ghost {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-caption);
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  font-family: inherit;
  min-height: 44px;
  transition: color var(--transition-base), border-color var(--transition-base), background var(--transition-base);
}

.btn-ghost:hover {
  color: var(--color-text-primary);
  border-color: var(--color-border-strong);
  background: var(--color-surface-elevated);
}

.btn-primary {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-caption);
  border: none;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: var(--color-text-inverse);
  cursor: pointer;
  font-family: inherit;
  min-height: 44px;
  transition: opacity var(--transition-base), transform var(--transition-fast);
}

.btn-primary:hover {
  opacity: 0.92;
}

.btn-primary:active {
  transform: scale(0.98);
}

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

.btn-primary.is-hidden,
.apply-all-btn.is-hidden,
.is-hidden {
  display: none;
}

/* ── Error highlights ── */
.spelling-error,
.grammar-error,
.punctuation-suggestion {
  cursor: pointer;
  padding: 0 2px;
  border-radius: 2px;
  transition: background var(--transition-fast), filter var(--transition-fast);
}

.spelling-error {
  background: var(--highlight-spelling-bg);
  border-bottom: 2px solid var(--highlight-spelling-border);
}

.grammar-error {
  background: var(--highlight-grammar-bg);
  border-bottom: 2px solid var(--highlight-grammar-border);
}

.punctuation-suggestion {
  background: var(--highlight-punctuation-bg);
  border-bottom: 2px solid var(--highlight-punctuation-border);
}

.spelling-error:hover,
.grammar-error:hover,
.punctuation-suggestion:hover,
.highlight-active {
  filter: brightness(1.08);
}

/* ── Suggestion popover ── */
.suggestion-popover {
  position: fixed;
  z-index: 1000;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-card);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-popover);
  max-width: 320px;
  display: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.suggestion-popover.show {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.popover-type {
  font-size: var(--font-size-label);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.popover-type--spelling { color: var(--color-error); }
.popover-type--grammar { color: var(--color-warning); }
.popover-type--punctuation { color: var(--color-success); }

.popover-correction {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
  text-align: center;
  color: var(--color-text-primary);
}

.popover-apply {
  width: 100%;
  padding: var(--spacing-sm);
  border: none;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: var(--color-text-inverse);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  font-family: inherit;
  min-height: 44px;
  transition: opacity var(--transition-base);
}

.popover-apply:hover {
  opacity: 0.92;
}

.popover-hint {
  font-size: var(--font-size-label);
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--spacing-sm);
}

/* ── Suggestion cards ── */
.suggestion-card {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface-elevated);
  cursor: pointer;
  transition: border-color var(--transition-base), background var(--transition-base);
  text-align: right;
}

.suggestion-card:hover,
.suggestion-card.focused {
  border-color: var(--color-primary);
  background: var(--color-suggestion-hover-bg);
}

.suggestion-card-badge {
  display: inline-block;
  font-size: var(--font-size-label);
  font-weight: var(--font-weight-bold);
  padding: 2px 8px;
  border-radius: 999px;
  margin-bottom: var(--spacing-sm);
}

.badge-spelling {
  background: var(--color-badge-spelling-bg);
  color: var(--color-error);
}

.badge-grammar {
  background: var(--color-badge-grammar-bg);
  color: var(--color-warning);
}

.badge-punctuation {
  background: var(--color-badge-punctuation-bg);
  color: var(--color-success);
}

.suggestion-card-change {
  font-size: var(--font-size-caption);
  margin-bottom: 4px;
  color: var(--color-text-primary);
}

.suggestion-card-original {
  text-decoration: line-through;
  color: var(--color-text-muted);
}

.suggestion-card-arrow {
  margin: 0 var(--spacing-sm);
  color: var(--color-text-muted);
}

.suggestion-card-fix {
  color: var(--color-success);
  font-weight: var(--font-weight-semibold);
}

.suggestion-card-apply {
  float: left;
  padding: 4px 10px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: var(--font-size-label);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  font-family: inherit;
  min-height: 32px;
  transition: opacity var(--transition-base);
}

.suggestion-card-apply:hover {
  opacity: 0.9;
}

/* ── Score ring ── */
.score-ring-wrap {
  position: relative;
  width: 140px;
  height: 140px;
  margin: 0 auto var(--spacing-md);
}

.score-circle {
  transition: stroke-dashoffset 0.6s ease-in-out;
}

.score-value {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-h1);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

/* ── Empty state ── */
.empty-state {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  color: var(--color-text-muted);
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-md);
  opacity: 0.35;
  color: var(--color-text-muted);
}

/* ── Sidebar ── */
.sidebar-panel {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.sidebar-card {
  padding: var(--spacing-lg);
}

.suggestions-scroll {
  max-height: 420px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.apply-all-btn {
  width: 100%;
  margin-top: var(--spacing-sm);
}

/* ── Summarize panel ── */
.summarize-panel {
  padding: var(--spacing-lg);
}

.summary-card {
  padding: var(--spacing-lg);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  border: 1px solid var(--color-summary-accent-border);
  box-shadow: var(--shadow-card);
}

.summary-card__title {
  color: var(--color-secondary);
}

.summary-loading {
  text-align: center;
  padding: var(--spacing-lg);
}

.summary-loading__spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-summary-accent-border);
  border-top-color: var(--color-secondary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.summary-error {
  color: var(--color-error);
  margin-bottom: var(--spacing-sm);
}

.summary-loading__text {
  margin-top: var(--spacing-md);
  color: var(--color-text-secondary);
}

.summary-preview {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.summary-preview.show {
  max-height: 500px;
}

/* ── Mobile bottom sheet ── */
.mobile-sheet-trigger {
  display: none;
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text-primary);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  font-family: inherit;
  min-height: 44px;
  margin-top: var(--spacing-md);
  transition: background var(--transition-base);
}

.mobile-sheet-trigger:hover {
  background: var(--color-surface-elevated);
}

@media (max-width: 1023px) {
  .mobile-sheet-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .sidebar-desktop {
    display: none;
  }
}

.bottom-sheet {
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  visibility: hidden;
}

.bottom-sheet.open {
  pointer-events: auto;
  visibility: visible;
}

.bottom-sheet-backdrop {
  position: absolute;
  inset: 0;
  background: var(--color-overlay);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.bottom-sheet.open .bottom-sheet-backdrop {
  opacity: 1;
}

.bottom-sheet-panel {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  max-height: 70vh;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-strong);
  border-radius: var(--radius-card) var(--radius-card) 0 0;
  padding: var(--spacing-lg);
  transform: translateY(100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
  box-shadow: var(--shadow-popover);
}

.bottom-sheet.open .bottom-sheet-panel {
  transform: translateY(0);
}

.bottom-sheet-handle {
  width: 40px;
  height: 4px;
  background: var(--color-border-strong);
  border-radius: 2px;
  margin: 0 auto var(--spacing-md);
}

/* ── Analysis loading ── */
.analyzing-indicator {
  display: none;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-caption);
  color: var(--color-text-secondary);
}

.analyzing-indicator.active {
  display: flex;
  animation: pulse-subtle 1.2s ease infinite;
}

.analyzing-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ── Range input ── */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  cursor: pointer;
  flex: 1;
}

input[type="range"]::-webkit-slider-track {
  background: var(--color-border-strong);
  height: 6px;
  border-radius: 3px;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary);
  margin-top: -6px;
}

/* ── Editor layout ── */
.editor-layout {
  display: grid;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
}

@media (min-width: 1024px) {
  .editor-layout {
    grid-template-columns: 1fr 340px;
    padding: var(--spacing-lg);
  }
}

@media (min-width: 1280px) {
  .editor-layout {
    grid-template-columns: 1fr 380px;
  }
}

/* ── Marketing token utilities ── */
.marketing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.marketing-divider {
  background: var(--color-border-strong);
}

.badge-pill {
  background: var(--color-primary-subtle-bg);
  color: var(--color-primary);
  border: 1px solid var(--color-primary-subtle-border);
}

.check-icon { color: var(--color-success); }
.muted-icon { color: var(--color-text-muted); }

.demo-editor-surface {
  background: var(--color-editor);
  color: var(--color-text-primary);
}

.demo-callout--spelling {
  background: var(--highlight-spelling-bg);
  border-right: 4px solid var(--highlight-spelling-border);
}

.demo-callout--grammar {
  background: var(--highlight-grammar-bg);
  border-right: 4px solid var(--highlight-grammar-border);
}

.demo-callout--punctuation {
  background: var(--highlight-punctuation-bg);
  border-right: 4px solid var(--highlight-punctuation-border);
}

.demo-callout--summarize {
  background: var(--color-summary-accent-bg);
  border-right: 4px solid var(--color-secondary);
}

.footer-bar {
  background: var(--color-bg);
  border-color: var(--color-border);
}

/* ── Document management (Phase 4) ── */
.doc-toolbar-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.doc-dropdown {
  position: relative;
}

.doc-dropdown__trigger {
  min-height: 44px;
}

.doc-dropdown__menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 200px;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-popover);
  padding: var(--spacing-sm);
  display: none;
  z-index: 200;
}

.doc-dropdown__menu.is-open {
  display: block;
}

.doc-dropdown__item {
  display: block;
  width: 100%;
  text-align: right;
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  min-height: 44px;
  transition: background var(--transition-base);
}

.doc-dropdown__item:hover:not(:disabled) {
  background: var(--color-suggestion-hover-bg);
}

.doc-dropdown__item:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.analysis-limit-banner {
  margin: 0 var(--spacing-md) var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  background: var(--color-primary-subtle-bg);
  border: 1px solid var(--color-primary-subtle-border);
  color: var(--color-text-secondary);
  font-size: var(--font-size-caption);
  text-align: right;
}

.doc-toast {
  position: fixed;
  bottom: var(--spacing-lg);
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border-strong);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-popover);
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-semibold);
  z-index: 300;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.doc-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.doc-toast--success {
  border-color: var(--color-success);
}

.doc-toast--error {
  border-color: var(--color-error);
}

/* PDF export styles are applied inline in buildPdfHtmlString for clone reliability */

.doc-mobile-actions {
  display: flex;
  gap: var(--spacing-sm);
  width: 100%;
  margin-top: var(--spacing-sm);
}

@media (max-width: 639px) {
  .doc-toolbar-actions--desktop {
    display: none !important;
  }
}

@media (min-width: 640px) {
  .doc-mobile-actions {
    display: none;
  }
}

/* ── Authentication (Phase 5) ── */
.auth-offline-banner {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  z-index: 45;
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: center;
  font-size: var(--font-size-caption);
  background: var(--color-primary-subtle-bg);
  border-bottom: 1px solid var(--color-primary-subtle-border);
  color: var(--color-text-secondary);
}

.auth-gate {
  position: fixed;
  inset: 0;
  z-index: 400;
  display: none;
  align-items: center;
  justify-content: center;
}

.auth-gate.is-open {
  display: flex;
}

.auth-gate-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
}

.auth-gate-panel {
  position: relative;
  z-index: 1;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-popover);
  padding: var(--spacing-xl);
  max-width: 420px;
  width: calc(100% - 2rem);
  text-align: center;
}

.auth-gate-panel--mobile {
  display: none;
}

.auth-gate-title {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-bold);
  margin: 0 0 var(--spacing-sm);
  color: var(--color-text-primary);
}

.auth-gate-subtitle {
  font-size: var(--font-size-body);
  color: var(--color-text-secondary);
  margin: 0 0 var(--spacing-lg);
}

.auth-gate-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.auth-gate-btn {
  width: 100%;
  min-height: 48px;
  justify-content: center;
}

.auth-gate-btn--google {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.auth-menu-wrap.is-hidden {
  display: none;
}

.auth-dropdown {
  position: relative;
}

.auth-menu-trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  min-height: 44px;
  padding: 0 var(--spacing-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text-primary);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-caption);
}

.auth-menu-trigger:hover {
  background: var(--color-surface-elevated);
}

.auth-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary-subtle-bg);
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
  overflow: hidden;
}

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

.auth-display-name {
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.auth-menu-chevron {
  opacity: 0.6;
  font-size: 0.75rem;
}

.auth-account-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 220px;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-popover);
  padding: var(--spacing-sm);
  display: none;
  z-index: 200;
  text-align: right;
}

.auth-account-menu.is-open {
  display: block;
}

.auth-account-menu__header {
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--spacing-sm);
}

.auth-provider-label {
  font-size: var(--font-size-caption);
  color: var(--color-text-muted);
}

.auth-account-menu__item {
  display: block;
  width: 100%;
  text-align: right;
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: var(--font-size-caption);
  cursor: pointer;
  min-height: 44px;
}

.auth-account-menu__item:hover {
  background: var(--color-suggestion-hover-bg);
}

.auth-account-menu__item--danger {
  color: var(--color-error);
}

.auth-account-menu__item.is-hidden {
  display: none;
}

.auth-drawer-section {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

.auth-drawer-label {
  font-size: var(--font-size-caption);
  color: var(--color-text-muted);
  margin: 0 0 var(--spacing-xs);
}

.auth-drawer-name {
  font-weight: var(--font-weight-semibold);
  margin: 0 0 2px;
}

.auth-drawer-provider {
  font-size: var(--font-size-caption);
  color: var(--color-text-secondary);
  margin: 0 0 var(--spacing-sm);
}

.auth-drawer-action.is-hidden {
  display: none;
}

@media (max-width: 639px) {
  .auth-gate-panel--desktop {
    display: none;
  }

  .auth-gate-panel--mobile {
    display: block;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    max-width: none;
    width: 100%;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding-bottom: calc(var(--spacing-xl) + env(safe-area-inset-bottom, 0));
  }

  .auth-display-name {
    display: none;
  }
}

/* ═══════════════════════════════════════════════
   Phase 6 — Cloud Persistence
   ═══════════════════════════════════════════════ */

/* ── Docs Sidebar (collapsible drawer) ── */
.docs-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  z-index: 80;
  background: var(--color-surface);
  border-left: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
  box-shadow: none;
  padding-top: 64px; /* below nav */
}

.docs-sidebar.is-open {
  transform: translateX(0);
  box-shadow: var(--shadow-popover);
}

.docs-sidebar__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.docs-sidebar__title {
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.docs-sidebar__body {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-sm);
}

.docs-new-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-primary);
  font-family: inherit;
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  min-height: 44px;
  transition: background var(--transition-base), border-color var(--transition-base);
}

.docs-new-btn:hover {
  background: var(--color-primary-subtle-bg);
  border-color: var(--color-primary);
}

/* ── Doc list items ── */
.doc-list-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  border-radius: var(--radius-md);
  transition: background var(--transition-base);
  margin-bottom: 2px;
}

.doc-list-item:hover,
.doc-list-item--active {
  background: var(--color-surface-elevated);
}

.doc-list-item--active {
  border-right: 3px solid var(--color-primary);
}

.doc-list-item__open {
  flex: 1;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-sm);
  border: none;
  background: transparent;
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: var(--font-size-caption);
  cursor: pointer;
  text-align: right;
  min-height: 44px;
  overflow: hidden;
}

.doc-list-item__icon {
  flex-shrink: 0;
  font-size: 1rem;
}

.doc-list-item__title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: var(--font-weight-semibold);
}

.doc-list-item__date {
  font-size: var(--font-size-label);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.doc-list-item__actions {
  display: none;
  gap: 2px;
  padding-left: var(--spacing-xs);
  flex-shrink: 0;
}

.doc-list-item:hover .doc-list-item__actions {
  display: flex;
}

.doc-list-item__action {
  width: 28px;
  height: 28px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.75rem;
  transition: background var(--transition-base), color var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
}

.doc-list-item__action:hover {
  background: var(--color-border-strong);
  color: var(--color-text-primary);
}

.doc-delete-btn:hover {
  color: var(--color-error) !important;
}

.docs-empty,
.docs-loading {
  font-size: var(--font-size-caption);
  color: var(--color-text-muted);
  text-align: center;
  padding: var(--spacing-lg) var(--spacing-md);
}

.docs-signin-prompt {
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: center;
}

.docs-signin-text {
  font-size: var(--font-size-caption);
  color: var(--color-text-secondary);
  margin: 0;
}

.docs-signin-btn {
  width: 100%;
  max-width: 200px;
}

/* ── Doc title bar (in editor toolbar) ── */
.doc-title-bar {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  overflow: hidden;
  max-width: 200px;
}

.doc-current-title {
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: default;
}

.doc-save-btn {
  width: 32px;
  height: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 0.875rem;
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
}

.doc-save-btn:hover {
  background: var(--color-surface-elevated);
  color: var(--color-primary);
}

.doc-save-btn--dirty {
  color: var(--color-warning);
  border-color: var(--color-warning);
  animation: pulse-subtle 2s ease infinite;
}

.docs-sidebar-toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-semibold);
  min-height: 36px;
  transition: background var(--transition-base), color var(--transition-base);
}

.docs-sidebar-toggle:hover,
.docs-sidebar-toggle[aria-expanded="true"] {
  background: var(--color-surface-elevated);
  color: var(--color-text-primary);
}

/* ── Summary history panel ── */
.summary-history-section {
  margin-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-md);
}

.summary-history-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--spacing-sm) 0;
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  font-family: inherit;
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  text-align: right;
}

.summary-history-toggle:hover {
  color: var(--color-text-primary);
}

.summary-history-toggle-icon {
  transition: transform var(--transition-base);
  font-size: 0.75rem;
  opacity: 0.6;
}

.summary-history-toggle[aria-expanded="true"] .summary-history-toggle-icon {
  transform: rotate(180deg);
}

.summary-history-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.summary-history-panel.is-open {
  max-height: 400px;
  overflow-y: auto;
}

.summary-history-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  padding-top: var(--spacing-sm);
}

.summary-history-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-surface-elevated);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--spacing-sm);
  transition: border-color var(--transition-base);
}

.summary-history-item:hover {
  border-color: var(--color-border-strong);
}

.summary-history-item__body {
  flex: 1;
  overflow: hidden;
}

.summary-history-item__preview {
  font-size: var(--font-size-caption);
  color: var(--color-text-primary);
  margin: 0 0 4px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-align: right;
  direction: rtl;
}

.summary-history-item__date {
  font-size: var(--font-size-label);
  color: var(--color-text-muted);
}

.summary-history-item__actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  flex-shrink: 0;
}

.summary-open-btn,
.summary-delete-btn {
  padding: 4px 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: transparent;
  font-family: inherit;
  font-size: var(--font-size-label);
  cursor: pointer;
  min-height: 28px;
  transition: background var(--transition-base), color var(--transition-base);
}

.summary-open-btn {
  color: var(--color-primary);
}

.summary-open-btn:hover {
  background: var(--color-primary-subtle-bg);
}

.summary-delete-btn {
  color: var(--color-text-muted);
}

.summary-delete-btn:hover {
  color: var(--color-error);
  border-color: var(--color-error);
}

.summary-history-empty {
  font-size: var(--font-size-caption);
  color: var(--color-text-muted);
  text-align: center;
  padding: var(--spacing-md);
}

.save-summary-btn {
  margin-top: var(--spacing-sm);
}