/* =========================================================
   READ EASE — POLISH LAYER
   ========================================================= */

/* ---------- Global focus ring ---------- */
:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
  border-radius: var(--radius-sm);
}

/* ---------- Base Layout & Prevent Overflow ---------- */
html, body {
  overflow-x: clip !important;
}
.app-shell {
  overflow-x: hidden;
}
body {
  background:
    radial-gradient(1200px 600px at 15% -10%, #F2EFE6 0%, transparent 60%),
    radial-gradient(900px 500px at 100% 100%, #F1EDE2 0%, transparent 55%),
    var(--color-background);
  background-attachment: fixed;
  color: var(--color-text);
}

/* ---------- Sidebar ---------- */
.sidebar {
  background: linear-gradient(180deg, #FFFFFF 0%, #FBFAF6 100%);
  border-right: 1px solid var(--color-border);
  box-shadow: 1px 0 0 rgba(40, 35, 25, 0.02);
}

.brand {
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--color-text);
}

.brand-icon {
  background: linear-gradient(135deg, #3A7764 0%, var(--color-primary-dark) 100%);
  box-shadow: 0 4px 12px rgba(44, 95, 79, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.15);
  border-radius: 12px;
}

.sidebar-label {
  font-size: 11px;
  letter-spacing: 1.4px;
  color: var(--color-text-muted);
}

.nav-item {
  position: relative;
  padding: 11px 14px;
  border-radius: 10px;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav-item:hover:not(:disabled) {
  background: var(--color-primary-soft-2);
  color: var(--color-primary-dark);
}

.nav-item.active {
  background: var(--color-primary-soft);
  color: var(--color-primary-dark);
  font-weight: 600;
}

.nav-item.active::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 22px;
  background: var(--color-primary);
  border-radius: 0 3px 3px 0;
}

.nav-count {
  margin-left: auto;
  min-width: 22px;
  padding: 2px 8px;
  background: var(--color-primary);
  color: white;
  font-size: 11px;
  font-weight: 700;
  border-radius: var(--radius-full);
  text-align: center;
  line-height: 1.4;
}

.nav-count[hidden] {
  display: none;
}

.sidebar-message {
  background: linear-gradient(135deg, var(--color-primary-soft) 0%, var(--color-primary-soft-2) 100%);
  border: 1px solid rgba(44, 95, 79, 0.08);
  padding: 16px 15px;
  border-radius: 12px;
}

.message-icon {
  color: var(--color-primary);
  flex-shrink: 0;
}

.sidebar-message strong {
  font-weight: 600;
  color: var(--color-text);
}

.sidebar-message p {
  color: var(--color-text-secondary);
}

.sidebar-footer {
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
  margin-top: 16px;
}

/* ---------- Topbar ---------- */
.topbar {
  background: rgba(253, 252, 249, 0.85);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.breadcrumb strong {
  color: var(--color-text);
  font-weight: 700;
  background: var(--color-primary-soft-2);
  padding: 4px 12px;
  border-radius: 8px;
  border: 1px solid var(--color-primary-soft);
  max-width: 180px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.breadcrumb-divider {
  color: var(--color-text-muted);
  opacity: 0.5;
}

.offline-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-secondary);
  box-shadow: var(--shadow-xs);
}

.status-dot {
  width: 7px;
  height: 7px;
  background: var(--color-success);
  box-shadow: 0 0 0 3px rgba(46, 139, 87, 0.15);
  border-radius: 50%;
}

/* ---------- Page headings ---------- */
.eyebrow {
  color: var(--color-accent);
  font-size: 11px;
  letter-spacing: 1.6px;
  font-weight: 700;
}

.page-heading h1 {
  color: var(--color-text);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.page-description {
  color: var(--color-text-secondary);
  font-size: 1.02rem;
  line-height: 1.7;
}

/* ---------- Buttons ---------- */
.button {
  font-weight: 600;
  letter-spacing: -0.005em;
  border-radius: 10px;
  transition: background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.button-primary {
  background: linear-gradient(180deg, #367258 0%, var(--color-primary) 100%);
  color: white;
  border: 1px solid var(--color-primary-dark);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14), 0 1px 2px rgba(44, 95, 79, 0.2), 0 2px 6px rgba(44, 95, 79, 0.15);
}

.button-primary:hover {
  background: linear-gradient(180deg, #2C5F4F 0%, var(--color-primary-dark) 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14), 0 2px 4px rgba(44, 95, 79, 0.25), 0 4px 14px rgba(44, 95, 79, 0.2);
  transform: translateY(-1px);
}

.button-primary:active {
  transform: translateY(0);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(44, 95, 79, 0.2);
}

.button-secondary {
  background: white;
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
  box-shadow: var(--shadow-xs);
}

.button-secondary:hover {
  background: var(--color-surface-soft);
  border-color: var(--color-text-muted);
  box-shadow: var(--shadow-sm);
}

.icon-button {
  border-radius: 10px;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  background: white;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.icon-button:hover {
  background: var(--color-primary-soft-2);
  color: var(--color-primary);
  border-color: var(--color-primary-soft);
}

/* ---------- Inputs ---------- */
.input-group label {
  color: var(--color-text);
  font-weight: 600;
  font-size: 13.5px;
  letter-spacing: -0.005em;
}

.input-group input,
.input-group textarea {
  background: var(--color-surface-warm);
  border: 1px solid var(--color-border-strong);
  border-radius: 10px;
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.input-group input:hover,
.input-group textarea:hover {
  border-color: var(--color-text-muted);
}

.input-group input:focus,
.input-group textarea:focus {
  background: white;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-ring);
}

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

#wordCount {
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ---------- Import card ---------- */
.import-card {
  background: white;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-xl);
  padding: 30px;
}

.section-heading h2 {
  color: var(--color-text);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-heading p {
  color: var(--color-text-secondary);
}

.step-indicator {
  color: var(--color-text-muted);
  font-size: 10.5px;
  letter-spacing: 1px;
}

/* ---------- Upload dropzone ---------- */
.upload-dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 34px 24px 24px;
  margin-bottom: 24px;
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  background: var(--color-surface-warm);
  text-align: center;
  transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.upload-dropzone:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-soft-2);
}

.upload-dropzone.is-dragging {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  transform: scale(1.005);
}

.upload-dropzone__icon {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  background: white;
  color: var(--color-primary);
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.upload-dropzone__icon svg {
  width: 24px;
  height: 24px;
}

.upload-dropzone__copy {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.upload-dropzone__copy strong {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.upload-dropzone__copy span {
  color: var(--color-text-secondary);
  font-size: 12.5px;
}

.upload-dropzone .upload-button {
  margin-top: 4px;
}

.upload-supported {
  margin: 4px 0 0;
  color: var(--color-text-muted);
  font-size: 11.5px;
  line-height: 1.5;
  letter-spacing: 0.01em;
}

.upload-file-status {
  margin: 0;
  min-height: 1em;
  color: var(--color-success);
  font-size: 12px;
  font-weight: 500;
}

/* ---------- Sample card ---------- */
.sample-card {
  background: white;
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal), transform var(--transition-normal);
}

.sample-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.sample-icon {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.sample-copy strong {
  color: var(--color-text);
  font-weight: 600;
}

.sample-copy span {
  color: var(--color-text-secondary);
}

.sample-arrow {
  color: var(--color-text-muted);
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.sample-card:hover .sample-arrow {
  color: var(--color-primary);
  transform: translateX(2px);
}

/* ---------- Reading card ---------- */
.reading-card {
  --reading-background: #FDFCF9;
  --reading-text: #3A362E;
  --reading-heading: #1F1D18;
  background: var(--reading-background);
  border: 1px solid var(--color-border);
  padding: clamp(30px, 5vw, 56px);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-xl);
  overflow: hidden !important;
}

.reading-title {
  color: var(--reading-heading);
  font-family: var(--font-reading);
  font-weight: 600;
  letter-spacing: -0.02em;
  word-break: break-word !important;
  overflow-wrap: anywhere !important;
  max-width: 100% !important;
}

.reading-content {
  color: var(--reading-text);
  max-width: 66ch;
}

.reading-content p {
  margin-bottom: 1.4em;
  word-break: break-word !important;
  overflow-wrap: anywhere !important;
}

.reading-meta {
  color: var(--color-text-muted);
  font-size: 11.5px;
  letter-spacing: 0.5px;
}

.reading-category {
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: 1.4px;
  font-size: 11px;
}

.reading-divider {
  background: var(--color-border);
  opacity: 0.7;
}

/* Reader toolbar */
.reader-toolbar {
  padding: 4px 0;
}

.reader-tools {
  flex-wrap: wrap;
}

.reader-bottom-note {
  padding: 16px 20px;
  margin-top: 24px;
  background: var(--color-surface-warm);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  font-family: var(--font-reading);
  font-style: italic;
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* ---------- Speech player ---------- */
.speech-player {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  justify-content: space-between !important;
  gap: 16px !important;
  padding: 16px 20px !important;
  border-radius: 14px;
  background: linear-gradient(135deg, #FFFFFF 0%, #FBFAF5 100%);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  width: 100%;
}

.speech-info {
  flex: 1 !important;
  min-width: 0 !important;
  width: 100%;
}

.speech-info > div {
  display: flex !important;
  flex-direction: column !important;
  gap: 4px !important;
}

.speech-info strong {
  font-weight: 700;
  color: var(--color-text);
  font-size: 14px !important;
}

.speech-info span:not(.speech-icon) {
  color: var(--color-text-secondary);
  font-size: 12px !important;
}

.speech-controls, .speech-toggle-button {
  flex-shrink: 0 !important;
}

.speech-toggle-button {
  background: linear-gradient(180deg, #367258, var(--color-primary));
  border: 1px solid var(--color-primary-dark);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18), 0 2px 8px rgba(44, 95, 79, 0.3);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.speech-toggle-button:hover {
  transform: scale(1.05);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18), 0 4px 14px rgba(44, 95, 79, 0.4);
}

.speech-toggle-button:active {
  transform: scale(0.97);
}

/* ---------- Accessibility panel ---------- */
.accessibility-panel {
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  background: white;
  border: 1px solid var(--color-border);
}

.setting-control select {
  background: var(--color-surface-warm);
  border: 1px solid var(--color-border-strong);
  border-radius: 10px;
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.setting-control input[type="range"] {
  accent-color: var(--color-primary);
}

.toggle-track {
  background: var(--color-border-strong);
}

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

.text-button {
  color: var(--color-primary);
}

.text-button:hover {
  color: var(--color-primary-dark);
}

/* ---------- Reading ruler ---------- */
.reading-ruler {
  background: linear-gradient(90deg, transparent 0%, rgba(44, 95, 79, 0.05) 20%, rgba(44, 95, 79, 0.1) 50%, rgba(44, 95, 79, 0.05) 80%, transparent 100%);
  border-top: 1px solid rgba(44, 95, 79, 0.22);
  border-bottom: 1px solid rgba(44, 95, 79, 0.22);
}

/* ---------- Annotations ---------- */
.annotation-toolbar {
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.97);
  border: 1px solid var(--color-border);
}

.annotation-toolbar button {
  border-radius: 8px;
  font-weight: 500;
  color: var(--color-text);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.annotation-toolbar button:hover {
  background: var(--color-primary-soft-2);
  color: var(--color-primary-dark);
}

.annotation-dot.yellow { background: #FFD84D; }
.annotation-dot.green  { background: #7BC79C; }
.annotation-dot.blue   { background: #6FB0EC; }

.saved-highlight {
  border-radius: 3px;
  padding: 1px 3px;
  margin: 0 -1px;
  background: transparent;
}

.saved-highlight.yellow {
  background: #FFF2A8;
  color: #3A2E00;
  box-shadow: inset 0 -2px 0 #FFD84D;
}

.saved-highlight.green {
  background: #C9F2D9;
  color: #163B27;
  box-shadow: inset 0 -2px 0 #7BC79C;
}

.saved-highlight.blue {
  background: #D1E5FB;
  color: #0F2E4A;
  box-shadow: inset 0 -2px 0 #6FB0EC;
}

.annotations-panel {
  background: var(--color-surface-warm);
  border-left: 1px solid var(--color-border);
}

.annotations-header h2 {
  color: var(--color-text);
}

.annotation-item {
  border-bottom-color: var(--color-border);
}

.annotation-item blockquote {
  border-left-color: var(--color-primary);
  color: var(--color-text);
  font-family: var(--font-reading);
}

.annotation-note-preview {
  background: var(--color-primary-soft-2);
  color: var(--color-text);
}

.annotation-item-actions button {
  color: var(--color-primary);
  font-weight: 500;
}

.annotation-item-actions button:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.annotation-note-dialog form {
  background: white;
  color: var(--color-text);
  box-shadow: var(--shadow-lg);
}

.note-selected-text {
  background: var(--color-surface-warm);
  font-family: var(--font-reading);
  color: var(--color-text-secondary);
}

.annotation-note-dialog textarea {
  border-color: var(--color-border-strong);
  background: var(--color-surface-warm);
}

.annotation-note-actions button[type="submit"] {
  background: var(--color-primary);
  border: 1px solid var(--color-primary-dark);
}

.annotation-note-actions button[type="submit"]:hover {
  background: var(--color-primary-dark);
}

/* ---------- Revision dashboard ---------- */
.revision-eyebrow {
  color: var(--color-accent);
  font-size: 11px;
  letter-spacing: 1.6px;
  font-weight: 700;
}

.revision-heading {
  color: var(--color-text);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.revision-subtitle, .revision-section-description {
  color: var(--color-text-secondary);
}

.revision-refresh-button, .revision-exit-button, .revision-back-button {
  background: white;
  border: 1px solid var(--color-border-strong);
  color: var(--color-text);
  border-radius: 10px;
  font-weight: 500;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.revision-refresh-button:hover, .revision-exit-button:hover, .revision-back-button:hover {
  background: var(--color-primary-soft-2);
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
}

.revision-stat-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.revision-stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.revision-stat-card__label, .revision-stat-card__description {
  color: var(--color-text-muted);
}

.revision-stat-card__value {
  color: var(--color-primary);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.revision-intro, .revision-empty-state, .revision-complete {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 18px;
  box-shadow: var(--shadow-xs);
}

.revision-section-heading {
  color: var(--color-text);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.revision-empty-state__icon, .revision-complete__icon {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.revision-empty-state__description, .revision-complete__description {
  color: var(--color-text-secondary);
}

.revision-start-button, .revision-reveal-button {
  background: linear-gradient(180deg, #367258, var(--color-primary));
  color: white;
  border: 1px solid var(--color-primary-dark);
  border-radius: 10px;
  font-weight: 650;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14), 0 2px 6px rgba(44, 95, 79, 0.25);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.revision-start-button:hover, .revision-reveal-button:hover {
  background: linear-gradient(180deg, #2C5F4F, var(--color-primary-dark));
  transform: translateY(-1px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14), 0 4px 14px rgba(44, 95, 79, 0.3);
}

.revision-progress__track {
  background: var(--color-border);
  height: 8px;
}

.revision-progress__bar {
  background: linear-gradient(90deg, #367258, var(--color-primary));
  transition: width 240ms cubic-bezier(0.4, 0, 0.2, 1);
}

.revision-progress__text {
  color: var(--color-text-secondary);
}

.revision-review-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 18px;
  box-shadow: var(--shadow-md);
}

.revision-review-card__type {
  color: var(--color-accent);
  font-size: 10.5px;
  letter-spacing: 1.4px;
}

.revision-review-card__question {
  color: var(--color-text);
  font-family: var(--font-reading);
  font-weight: 600;
  letter-spacing: -0.015em;
}

.revision-answer-panel {
  background: var(--color-surface-warm);
  border: 1px solid var(--color-border);
  border-radius: 12px;
}

.revision-answer-panel__heading {
  color: var(--color-text);
  font-weight: 600;
}

.revision-answer-panel__text {
  color: var(--color-text);
  font-family: var(--font-reading);
  font-size: 1.05rem;
}

.revision-answer-panel__explanation, .revision-source__text {
  color: var(--color-text-secondary);
}

.revision-source summary {
  color: var(--color-primary);
  font-weight: 500;
}

.revision-source summary:hover {
  color: var(--color-primary-dark);
}

.revision-rating__heading {
  color: var(--color-text);
  font-weight: 600;
}

.revision-rating__button {
  background: white;
  border: 1px solid var(--color-border-strong);
  border-radius: 10px;
  color: var(--color-text);
  transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.revision-rating__button:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-soft-2);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.revision-rating__button[class*="rating-again"]:hover {
  border-color: var(--color-danger);
  background: var(--color-danger-soft);
}

.revision-rating__button[class*="rating-easy"]:hover {
  border-color: var(--color-success);
  background: var(--color-success-soft);
}

.revision-rating__description {
  color: var(--color-text-muted);
}

.revision-library-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.revision-library-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.revision-library-card__question {
  color: var(--color-text);
}

.revision-library-card__type, .revision-library-card__date {
  color: var(--color-text-muted);
}

.revision-delete-button {
  color: var(--color-danger);
  border: 1px solid var(--color-border);
  background: white;
  border-radius: 8px;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.revision-delete-button:hover {
  background: var(--color-danger-soft);
  border-color: var(--color-danger);
}

.revision-group-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.revision-group-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.revision-group-card__title {
  color: var(--color-text);
  font-weight: 700;
}

.revision-group-card__type {
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  font-size: 10px;
  letter-spacing: 0.8px;
}

.revision-group-card__count strong, .revision-group-card__due strong, .revision-group-card__mastered strong {
  color: var(--color-text);
  font-weight: 800;
}

.revision-group-card__due strong {
  color: var(--color-primary);
}

.revision-group-card__mastered strong {
  color: var(--color-success);
}

.revision-group-card__count, .revision-group-card__due, .revision-group-card__mastered {
  color: var(--color-text-muted);
}

.revision-group-open-button {
  color: var(--color-text);
  background: white;
  border: 1px solid var(--color-border-strong);
  border-radius: 10px;
  font-weight: 600;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.revision-group-open-button:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
  background: var(--color-primary-soft-2);
}

.revision-group-review-button {
  background: linear-gradient(180deg, #367258, var(--color-primary));
  border: 1px solid var(--color-primary-dark);
  color: white;
  border-radius: 10px;
  font-weight: 600;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14), 0 1px 2px rgba(44, 95, 79, 0.2);
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.revision-group-review-button:hover {
  background: linear-gradient(180deg, #2C5F4F, var(--color-primary-dark));
  transform: translateY(-1px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14), 0 3px 8px rgba(44, 95, 79, 0.3);
}

/* ---------- Notes page ---------- */
#notesPageContent {
  padding: 32px;
  background: white;
  border-radius: 16px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

#notesPageContent p {
  margin: 0 0 20px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 60ch;
}

/* ---------- Focus mode ---------- */
.focus-mode::before {
  content: "Press Esc to exit focus mode";
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  padding: 9px 18px;
  background: rgba(31, 29, 24, 0.88);
  color: white;
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius-full);
  pointer-events: none;
  z-index: 100;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  animation: focusHintFade 5s ease forwards;
}

@keyframes focusHintFade {
  0%   { opacity: 0; transform: translate(-50%, 12px); }
  15%  { opacity: 1; transform: translate(-50%, 0); }
  75%  { opacity: 1; transform: translate(-50%, 0); }
  100% { opacity: 0; transform: translate(-50%, 8px); }
}

.focus-mode .reading-card {
  box-shadow: var(--shadow-lg);
}

/* ---------- Scrollbars ---------- */
::-webkit-scrollbar {
  width: 11px;
  height: 11px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--color-border-strong);
  border: 3px solid var(--color-background);
  border-radius: 6px;
  transition: background var(--transition-fast);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* ---------- Selection ---------- */
::selection {
  color: var(--color-primary-darker);
  background: #D9EBE1;
}

/* =========================================================
   MOBILE OVERRIDES (Fixes Swipeable Row & Header)
   ========================================================= */
@media (max-width: 800px) {
  .reading-card {
    border-radius: 16px;
  }

  .import-card {
    padding: 22px 18px;
  }

  /* 1. Force header to stay visible unless explicitly in Focus Mode */
  body:not(.focus-mode) .topbar {
    display: flex !important;
    padding: 0 16px !important;
    height: 64px !important;
    background: rgba(253, 252, 249, 0.95) !important;
    border-bottom: 1px solid var(--color-border) !important;
  }
  .mobile-menu-button {
    display: grid !important;
    margin-right: 12px;
  }
  .breadcrumb {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 8px !important;
    font-size: 13px !important;
    flex: 1;
    overflow: hidden;
  }
  .breadcrumb span:first-child,
  .breadcrumb-divider {
    display: none !important;
  }
  .breadcrumb strong {
    background: var(--color-primary-soft-2) !important;
    padding: 6px 12px !important;
    border-radius: 8px !important;
    font-weight: 600 !important;
    max-width: 100% !important;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .topbar-right {
    display: none !important;
  }

  /* 2. PERFECT SWIPEABLE TOOLBAR (Starts from Left) */
  .reader-toolbar {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 12px !important;
  }
  #editDocumentButton {
    width: 100%;
    justify-content: center;
  }
  .reader-tools {
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    justify-content: flex-start !important; /* Forces scroll to start at A- */
    padding-bottom: 8px !important;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Hide scrollbar Firefox */
  }
  .reader-tools::-webkit-scrollbar {
    display: none; /* Hide scrollbar Chrome/Safari */
  }
  .reader-tools > button, .reader-tools > .icon-button {
    flex-shrink: 0 !important; /* Prevents squishing */
    white-space: nowrap !important;
  }

  /* 3. Speech Player overlap fix */
  .speech-player {
    flex-direction: row !important;
    align-items: center !important;
    gap: 12px !important;
    padding: 12px 16px !important;
  }
  .speech-info {
    flex: 1 !important;
    min-width: 0 !important;
  }
  .speech-controls {
    flex-shrink: 0 !important;
  }
}

@media (max-width: 480px) {
  .page-content {
    padding: 24px 14px 60px;
  }
  .reading-card {
    padding: 24px 18px;
  }
  .revision-stat-card__value {
    font-size: 1.5rem;
  }
  .upload-dropzone {
    padding: 26px 16px 18px;
  }
  .annotation-toolbar {
    max-width: calc(100vw - 16px);
  }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .sample-card,
  .revision-stat-card,
  .revision-group-card,
  .revision-library-card,
  .speech-toggle-button,
  .revision-rating__button,
  .revision-group-review-button,
  .revision-group-open-button {
    transition: none !important;
    transform: none !important;
  }
  .focus-mode::before {
    animation: none;
    opacity: 1;
  }
}
/* =========================================================
   MOBILE SPEECH PLAYER FIX (Overrides accessibility.css)
   ========================================================= */
@media (max-width: 800px) {
  .speech-player {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: space-between !important;
    gap: 12px !important;
    padding: 16px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  
  .speech-info {
    display: flex !important;
    flex: 1 !important;
    min-width: 0 !important;
    width: auto !important; 
  }

  .speech-info > div {
    display: flex !important;
    flex-direction: column !important;
    gap: 4px !important;
    width: 100% !important;
  }

  .speech-info strong,
  .speech-info span {
    white-space: normal !important; /* Forces text to wrap naturally */
    line-height: 1.4 !important;
  }
  
  .speech-controls {
    width: auto !important; /* Kills the 100% width causing the overlap */
    flex-shrink: 0 !important; /* Stops the button from being squished */
    margin: 0 !important;
  }
  
  .speech-toggle-button {
    width: 46px !important;
    height: 46px !important;
    min-width: 46px !important;
    min-height: 46px !important;
    margin: 0 !important;
  }
}