/* RSVP Speed Reader - Design System */

:root {
  /* Colors */
  --bg-primary: #000000;
  --bg-secondary: #0a0a0a;
  --bg-tertiary: #141414;
  --bg-input: #1a1a1a;

  --text-primary: #ffffff;
  --text-secondary: #888888;
  --text-muted: #555555;

  --accent: #e63946;
  --accent-hover: #ff4d5a;

  --border: #2a2a2a;
  --border-focus: #444444;

  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
}

/* Typography */
h1,
h2,
h3 {
  font-weight: 600;
  line-height: 1.2;
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.25rem;
}

/* Links */
a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-hover);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--text-primary);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

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

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-full);
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
}

/* Inputs */
.input,
.textarea {
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.input:focus,
.textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
}

.textarea {
  resize: vertical;
  min-height: 200px;
  line-height: 1.6;
}

/* Range Slider */
.slider-container {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.slider {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  outline: none;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background: var(--accent);
  border: none;
  border-radius: 50%;
  cursor: pointer;
}

/* Progress Bar */
.progress-bar {
  width: 100%;
  height: 3px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: var(--radius-full);
  transition: width var(--transition-fast);
}

/* Seekable progress bar */
.progress-bar.seekable {
  cursor: pointer;
  height: 6px;
  transition: height var(--transition-fast), box-shadow var(--transition-fast);
}

.progress-bar.seekable:hover {
  height: 10px;
  box-shadow: 0 0 8px rgba(233, 69, 96, 0.4);
}

.progress-bar.seekable:active {
  height: 12px;
}

/* Cards */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-fast);
}

.card:hover {
  border-color: var(--border-focus);
}

.card-clickable {
  cursor: pointer;
}

.card-clickable:hover {
  background: var(--bg-tertiary);
  transform: translateY(-2px);
}

/* Layout */
.container {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-xl);
}

.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gap-sm {
  gap: var(--space-sm);
}

.gap-md {
  gap: var(--space-md);
}

.gap-lg {
  gap: var(--space-lg);
}

/* Views */
.view {
  display: none;
  min-height: 100vh;
}

.view.active {
  display: block;
}

/* ================================
   INPUT VIEW
   ================================ */
.input-view {
  padding: var(--space-2xl);
}

.input-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.input-header h1 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 400;
  margin-bottom: var(--space-sm);
}

.input-header h1 span {
  color: var(--accent);
}

.input-header p {
  color: var(--text-secondary);
}

.text-input-section {
  margin-bottom: var(--space-xl);
}

.input-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-sm);
}

.text-input-section label:not(.file-upload-btn) {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.file-upload-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.75rem;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.file-upload-btn:hover {
  background: var(--bg-secondary);
  border-color: var(--accent);
  color: var(--accent);
}

/* Drag over state for textarea */
.textarea.drag-over {
  border-color: var(--accent);
  background: rgba(233, 69, 96, 0.1);
}

/* URL Import Section */
.url-import-section {
  margin-bottom: var(--space-md);
}

.url-input-row {
  display: flex;
  gap: var(--space-sm);
  align-items: stretch;
}

.url-input {
  flex: 1;
  min-width: 0;
}

#import-url-btn {
  white-space: nowrap;
  flex-shrink: 0;
}

#import-url-btn.loading {
  opacity: 0.7;
  pointer-events: none;
}

.word-count {
  margin-top: var(--space-sm);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.settings-section {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
}

.setting-group {
  flex: 1;
  min-width: 200px;
}

.setting-group label {
  display: block;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

/* Alignment selector */
.alignment-selector {
  display: flex;
  gap: 2px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: 2px;
}

.alignment-btn {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.8rem;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.alignment-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.alignment-btn.active {
  color: var(--text-primary);
  background: var(--bg-secondary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.wpm-value {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--accent);
  min-width: 80px;
  text-align: right;
}

/* Pause Settings */
.pause-settings {
  margin-bottom: var(--space-lg);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.pause-settings summary {
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-secondary);
  user-select: none;
  transition: background var(--transition-fast);
}

.pause-settings summary:hover {
  background: var(--bg-tertiary);
}

.pause-settings[open] summary {
  border-bottom: 1px solid var(--border);
}

.pause-settings-content {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.pause-setting {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.pause-setting label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.pause-slider-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.pause-slider {
  flex: 1;
}

.pause-value {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  min-width: 45px;
  text-align: right;
}

.action-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-bottom: var(--space-xl);
}

/* Inspiration Section */
.inspiration-section {
  margin-top: var(--space-2xl);
  text-align: center;
}

.inspiration-section h3 {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.video-embed {
  position: relative;
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
  padding-top: 56.25%;
  /* 16:9 aspect ratio */
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.video-link {
  display: block;
  max-width: 560px;
  margin: 0 auto;
  text-decoration: none;
  color: var(--text-muted);
  transition: transform var(--transition-fast);
}

.video-link:hover {
  transform: scale(1.02);
}

.video-thumbnail {
  position: relative;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-tertiary);
  aspect-ratio: 16 / 9;
}

.video-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--transition-fast);
}

.video-link:hover .video-thumbnail img {
  opacity: 0.8;
}

.play-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 3rem;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(0, 0, 0, 0.6);
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.video-link:hover .play-overlay {
  background: var(--accent);
  transform: translate(-50%, -50%) scale(1.1);
}

.video-caption {
  display: block;
  text-align: center;
  margin-top: var(--space-sm);
  font-size: 0.875rem;
}

/* ================================
   READER VIEW
   ================================ */
.reader-view {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  display: none;
  flex-direction: column;
  /* Support for iOS Safari viewport */
  min-height: 100vh;
  min-height: -webkit-fill-available;
}

.reader-view.active {
  display: flex;
}

/* Focus lines container - just for positioning */
.reader-focus-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* Top vertical line segment */
.reader-focus-lines::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  width: 1px;
  height: 35%;
  background: var(--border);
  transform: translateX(-50%);
}

/* Bottom vertical line segment */
.reader-focus-lines::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 1px;
  height: 35%;
  background: var(--border);
  transform: translateX(-50%);
}

/* Crosshair container - centered */
.reader-crosshair {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

/* Horizontal crosshair line */
.reader-crosshair::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 1px;
  background: var(--border);
}

/* Vertical crosshair line */
.reader-crosshair::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 1px;
  height: 20px;
  background: var(--border);
}

.reader-word-display {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* Word container positioned at center, then offset by JS transform */
.word-container {
  font-family: var(--font-display);
  font-size: clamp(3rem, 10vw, 6rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  white-space: nowrap;
  user-select: none;
  display: inline-flex;
  /* Transform will be set by JS to offset so ORP is at center */
  transition: none;
}

/* The parts of the word - inline display */
.word-before,
.word-orp,
.word-after {
  display: inline;
}

.word-orp {
  color: var(--accent);
}

.reader-controls {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-xl);
  background: linear-gradient(to top, var(--bg-primary), transparent);
}

.reader-progress {
  margin-bottom: var(--space-lg);
}

.reader-progress-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.reader-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
}

.play-btn {
  width: 60px;
  height: 60px;
  font-size: 1.5rem;
}

/* Reader settings row - contains alignment and WPM controls */
.reader-settings-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  margin-top: var(--space-lg);
  flex-wrap: wrap;
}

/* Reader alignment control */
.reader-alignment-control {
  display: flex;
  gap: 2px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: 2px;
}

.reader-align-btn {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-width: 36px;
}

.reader-align-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.reader-align-btn.active {
  color: var(--text-primary);
  background: var(--bg-secondary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.reader-wpm-control {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
}

.reader-wpm-control .slider {
  width: 150px;
}

.reader-wpm-value {
  font-size: 1rem;
  color: var(--accent);
  font-weight: 600;
  min-width: 80px;
}

.reader-exit {
  position: absolute;
  top: var(--space-lg);
  left: var(--space-lg);
  z-index: 10;
}

/* ================================
   NOTES VIEW
   ================================ */
.notes-view {
  padding: var(--space-2xl);
}

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

.notes-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.note-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.note-content {
  flex: 1;
  cursor: pointer;
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.note-content:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-focus);
}

.note-title {
  font-weight: 500;
  margin-bottom: var(--space-xs);
}

.note-preview {
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.note-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: var(--space-sm);
}

.note-delete {
  opacity: 0.5;
  transition: opacity var(--transition-fast);
}

.note-card:hover .note-delete {
  opacity: 1;
}

.empty-state {
  text-align: center;
  padding: var(--space-2xl);
  color: var(--text-secondary);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  opacity: 0.3;
}

/* Navigation */
.nav-tabs {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--space-md);
  align-items: center;
}

.nav-tab {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-tab:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.nav-tab.active {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

/* Auth UI */
.auth-container {
  margin-left: auto;
  position: relative;
}

.login-btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.login-btn svg {
  flex-shrink: 0;
}

.user-profile {
  position: relative;
  cursor: pointer;
}

.user-profile.hidden {
  display: none;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--border);
  transition: border-color var(--transition-fast);
}

.user-profile:hover .user-avatar {
  border-color: var(--accent);
}

.user-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--space-xs);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  min-width: 150px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
  z-index: 100;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.user-profile:hover .user-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.user-name {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-xs);
}

.logout-btn {
  width: 100%;
  padding: var(--space-xs) var(--space-sm);
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 0.8rem;
  cursor: pointer;
  text-align: left;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.logout-btn:hover {
  background: var(--bg-tertiary);
}

/* Save Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  backdrop-filter: blur(4px);
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  width: 100%;
  max-width: 400px;
  animation: modalIn 0.2s ease;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal h2 {
  margin-bottom: var(--space-lg);
}

.modal-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: flex-end;
  margin-top: var(--space-lg);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn var(--transition-normal);
}

.slide-up {
  animation: slideUp var(--transition-slow);
}

/* Tooltip */
.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.75rem;
  color: var(--text-primary);
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.tooltip:hover::after {
  opacity: 1;
}

/* Keyboard hint */
.kbd {
  display: inline-block;
  padding: 2px 6px;
  font-size: 0.75rem;
  font-family: var(--font-body);
  color: var(--text-muted);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

/* Responsive */
@media (max-width: 600px) {

  /* Auth UI - Mobile */
  .auth-container {
    position: absolute;
    right: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
  }

  .login-btn {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.75rem;
  }

  .login-btn span {
    display: none;
    /* Hide "Sign in" text on mobile, show just icon */
  }

  .user-avatar {
    width: 28px;
    height: 28px;
  }

  .nav-tabs {
    position: relative;
  }

  /* Container */
  .container {
    padding: var(--space-md);
  }

  /* Input View */
  .input-view {
    padding: var(--space-lg) var(--space-md);
  }

  .input-header {
    margin-bottom: var(--space-lg);
  }

  .input-header h1 {
    font-size: 1.5rem;
  }

  .input-header p {
    font-size: 0.875rem;
  }

  /* File upload button - larger touch target */
  .file-upload-btn {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    min-height: 44px;
  }

  .input-label-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  /* Settings */
  .settings-section {
    flex-direction: column;
    padding: var(--space-md);
  }

  .setting-group {
    min-width: 100%;
  }

  /* Action buttons - full width, larger */
  .action-buttons {
    flex-direction: column;
  }

  .action-buttons .btn {
    width: 100%;
    min-height: 50px;
    font-size: 1rem;
  }

  /* Keyboard hints - hide on mobile (touch devices) */
  .shortcuts {
    display: none;
  }

  /* ================================
     READER VIEW - MOBILE
     ================================ */
  .reader-view {
    /* Use flex layout for proper distribution */
    overflow: hidden;
    /* Account for iOS Safari dynamic viewport */
    height: 100dvh;
    min-height: 100dvh;
  }

  /* Word display area - flex grow to fill available space */
  .reader-word-display {
    flex: 1;
    min-height: 0;
  }

  /* Adjust focus lines for mobile - account for controls area */
  .reader-focus-lines::before {
    height: 25%;
  }

  .reader-focus-lines::after {
    height: 20%;
    bottom: auto;
    top: 50%;
  }

  /* Crosshair needs to be positioned much higher on mobile due to controls + browser UI */
  .reader-crosshair {
    top: 35%;
  }

  .reader-exit {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    min-height: 44px;
    /* Account for notch/dynamic island */
    top: max(var(--space-lg), env(safe-area-inset-top, 20px));
  }

  /* Word display - smaller font on mobile */
  .word-container {
    font-size: clamp(2rem, 12vw, 4rem);
  }

  /* Reader controls - position at bottom with large safe area padding */
  .reader-controls {
    position: relative;
    padding: var(--space-sm) var(--space-md);
    /* Large bottom padding to account for Safari bottom bar + home indicator */
    padding-bottom: calc(100px + env(safe-area-inset-bottom, 34px));
    background: linear-gradient(to top, var(--bg-primary) 85%, transparent);
    flex-shrink: 0;
  }

  .reader-progress {
    margin-bottom: var(--space-sm);
  }

  .reader-progress-info {
    font-size: 0.7rem;
  }

  /* Settings row - more compact on mobile */
  .reader-settings-row {
    gap: var(--space-md);
    margin-top: var(--space-sm);
    padding-bottom: var(--space-xs);
  }

  /* Progress bar - taller for easier touch */
  .progress-bar.seekable {
    height: 12px;
  }

  .progress-bar.seekable:hover,
  .progress-bar.seekable:active {
    height: 16px;
  }

  /* Reader buttons - larger touch targets */
  .reader-buttons {
    gap: var(--space-lg);
    margin-bottom: var(--space-xs);
  }

  .reader-buttons .btn-icon {
    width: 44px;
    height: 44px;
    font-size: 1rem;
  }

  .play-btn {
    width: 56px;
    height: 56px;
    font-size: 1.25rem;
  }

  /* Alignment buttons - smaller on mobile */
  .reader-align-btn {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.75rem;
    min-width: 28px;
  }

  /* WPM slider - more compact */
  .reader-wpm-control .slider {
    width: 100px;
  }

  .reader-wpm-value {
    font-size: 0.8rem;
    min-width: 60px;
  }

  /* WPM control - better mobile layout */
  .reader-wpm-control {
    flex-direction: row;
    gap: var(--space-md);
    margin-top: var(--space-sm);
  }

  .reader-wpm-control .slider {
    flex: 1;
    min-width: 120px;
    height: 8px;
  }

  .reader-wpm-value {
    font-size: 0.9rem;
    min-width: 70px;
    text-align: right;
  }

  /* ================================
     NOTES VIEW - MOBILE
     ================================ */
  .notes-view {
    padding: var(--space-lg) var(--space-md);
  }

  .notes-list {
    gap: var(--space-sm);
  }

  /* Note cards - ensure delete button visible */
  .note-card {
    position: relative;
  }

  .note-content {
    padding-right: 50px;
    /* Space for delete button */
  }

  .note-title {
    font-size: 1rem;
  }

  .note-preview {
    font-size: 0.8rem;
    -webkit-line-clamp: 2;
  }

  .note-meta {
    font-size: 0.7rem;
  }

  /* Delete button - larger touch target, always visible */
  .note-delete {
    width: 44px;
    height: 44px;
    opacity: 1;
    /* Always visible on mobile */
    position: absolute;
    right: var(--space-sm);
    top: 50%;
    transform: translateY(-50%);
  }

  /* ================================
     MODAL - MOBILE
     ================================ */
  .modal-content {
    margin: var(--space-md);
    width: calc(100% - var(--space-xl));
    max-width: none;
  }

  .modal-buttons {
    flex-direction: column-reverse;
  }

  .modal-buttons .btn {
    width: 100%;
    min-height: 48px;
  }

  /* Nav tabs - larger touch */
  .nav-tab {
    padding: var(--space-md) var(--space-lg);
    font-size: 0.9rem;
    min-height: 44px;
  }
}

/* Extra small screens */
@media (max-width: 375px) {
  .input-header h1 {
    font-size: 1.25rem;
  }

  .word-container {
    font-size: clamp(1.5rem, 10vw, 3rem);
  }

  .play-btn {
    width: 60px;
    height: 60px;
  }
}