/* ============================================
SoundSource PWA - style.css v3.0.0
iOS Optimized - Complete File
============================================ */

/* ============================================
CSS VARIABLES
============================================ */
:root {
  --bg-primary: #0A1929;
  --bg-secondary: #0f2137;
  --card-bg: #152740;
  --card-bg-light: #1a2f4d;
  --border-color: #1e3a5f;
  --text-primary: #ffffff;
  --text-secondary: #b0c4de;
  --text-gray: #7a8fa6;
  --cyan-primary: #0ea5e9;
  --cyan-hover: #0284c7;
  --cyan-light: rgba(14, 165, 233, 0.1);
  --cyan-bg: rgba(14, 165, 233, 0.1);
  --cyan-dark: #0284c7;
  --success: #10b981;
  --error: #ef4444;
  --warning: #f59e0b;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px rgba(14, 165, 233, 0.4);
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  /* iOS Safe Area Variables */
  --safe-area-top: env(safe-area-inset-top, 0px);
  --safe-area-bottom: env(safe-area-inset-bottom, 0px);
  --safe-area-left: env(safe-area-inset-left, 0px);
  --safe-area-right: env(safe-area-inset-right, 0px);
}

/* ============================================
RESET & GLOBAL
============================================ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  height: 100%;
  height: -webkit-fill-available;
  touch-action: manipulation;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100%;
  min-height: -webkit-fill-available;
  position: fixed;
  width: 100%;
  height: 100%;
  -webkit-overflow-scrolling: touch;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  pointer-events: none;
}

button, .nav-item, .icon-btn, .control-btn {
  -webkit-user-select: none;
  user-select: none;
  font-family: inherit;
}

/* Prevent iOS Zoom on Input Focus */
input, textarea, select {
  font-size: 16px !important;
  -webkit-appearance: none;
  border-radius: 0;
  font-family: inherit;
}

/* ============================================
LAYOUT & STRUCTURE - iOS OPTIMIZED
============================================ */
.app-container {
  width: 100%;
  height: 100vh;
  height: -webkit-fill-available;
  height: 100dvh;
  overflow: hidden;
  position: relative;
}

.screen {
  width: 100%;
  height: 100vh;
  height: -webkit-fill-available;
  height: 100dvh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  display: none;
  padding-top: var(--safe-area-top);
  padding-bottom: calc(80px + var(--safe-area-bottom));
}

.screen.active {
  display: block;
}

.screen.hidden {
  display: none !important;
}

.fullscreen {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  background: var(--bg-primary);
  padding-top: var(--safe-area-top);
  padding-bottom: var(--safe-area-bottom);
}

#overlay-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1001;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  padding-top: var(--safe-area-top);
  padding-bottom: var(--safe-area-bottom);
  overflow: hidden;
}

.screen-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  padding-top: max(var(--spacing-md), var(--safe-area-top));
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-primary);
  position: sticky;
  top: 0;
  z-index: 10;
}

.screen-header h1 {
  font-size: 24px;
  font-weight: 700;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.screen-content {
  padding: var(--spacing-lg);
  padding-bottom: calc(100px + var(--safe-area-bottom));
}

/* Centered containers */
.auth-container, .welcome-container, .subscription-container, .otp-container {
  max-width: 480px;
  margin: 0 auto;
  width: 100%;
  padding: 24px;
}

@media (min-width: 768px) {
  .auth-container, .welcome-container, .subscription-container, .otp-container {
    max-width: 500px;
  }
  .pricing-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

/* ============================================
GLOBAL SCROLLBAR HIDING
============================================ */
.screen,
.screen-content,
.subscription-container,
.share-modal-content,
.folder-modal-content,
.folder-list,
.note-content,
#chat-messages {
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.screen::-webkit-scrollbar,
.screen-content::-webkit-scrollbar,
.subscription-container::-webkit-scrollbar,
.share-modal-content::-webkit-scrollbar,
.folder-modal-content::-webkit-scrollbar,
.folder-list::-webkit-scrollbar,
.note-content::-webkit-scrollbar,
#chat-messages::-webkit-scrollbar {
  display: none;
}

/* Restore scrollbar on hover & keyboard focus for accessibility */
.screen:hover,
.screen-content:hover,
.subscription-container:hover,
#chat-messages:hover,
.note-content:hover,
.screen:focus-within,
.screen-content:focus-within,
.subscription-container:focus-within,
#chat-messages:focus-within {
  scrollbar-width: thin;
  -ms-overflow-style: auto;
}

.screen:hover::-webkit-scrollbar,
.screen-content:hover::-webkit-scrollbar,
.subscription-container:hover::-webkit-scrollbar,
#chat-messages:hover::-webkit-scrollbar,
.note-content:hover::-webkit-scrollbar,
.screen:focus-within::-webkit-scrollbar,
.screen-content:focus-within::-webkit-scrollbar,
.subscription-container:focus-within::-webkit-scrollbar,
#chat-messages:focus-within::-webkit-scrollbar {
  display: block;
  width: 6px;
}

.screen:hover::-webkit-scrollbar-thumb,
.screen-content:hover::-webkit-scrollbar-thumb,
.subscription-container:hover::-webkit-scrollbar-thumb,
#chat-messages:hover::-webkit-scrollbar-thumb,
.note-content:hover::-webkit-scrollbar-thumb,
.screen:focus-within::-webkit-scrollbar-thumb,
.screen-content:focus-within::-webkit-scrollbar-thumb,
.subscription-container:focus-within::-webkit-scrollbar-thumb,
#chat-messages:focus-within::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

/* ============================================
WELCOME SCREEN
============================================ */
.welcome-screen {
  background: linear-gradient(135deg, var(--bg-primary) 0%, #0f2137 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.welcome-container {
  max-width: 500px;
  padding: var(--spacing-xl);
  text-align: center;
}

.welcome-logo {
  margin-bottom: var(--spacing-xl);
}

.welcome-logo-image {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: 12px;
  margin: 0 auto;
}

.welcome-title {
  font-size: 32px;
  font-weight: 800;
  margin-top: var(--spacing-md);
  background: linear-gradient(135deg, #fff 0%, var(--cyan-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.welcome-heading {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.welcome-subtitle {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: var(--spacing-xl);
}

.welcome-features {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  text-align: left;
}

.welcome-feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--cyan-light);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.welcome-cta {
  width: 100%;
  padding: 16px 32px;
  font-size: 16px;
}

/* ============================================
AUTH SCREEN
============================================ */
.auth-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.auth-container {
  width: 100%;
  max-width: 420px;
}

.auth-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  position: relative;
}

.auth-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.auth-logo-image {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 12px;
  margin: 0 auto;
}

.auth-logo h1 {
  font-size: 24px;
  font-weight: 700;
}

.auth-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.auth-subtitle {
  color: var(--text-secondary);
  font-size: 14px;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
}

.auth-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 15px;
  outline: none;
  transition: all var(--transition-fast);
  min-height: 44px;
  font-family: inherit;
}

.auth-input:focus {
  border-color: var(--cyan-primary);
  box-shadow: 0 0 0 3px var(--cyan-light);
}

.auth-input::placeholder {
  color: var(--text-gray);
}

.auth-links {
  display: flex;
  justify-content: flex-end;
}

.auth-links a {
  color: var(--cyan-primary);
  text-decoration: none;
  font-size: 14px;
  padding: 12px 0;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.auth-btn {
  width: 100%;
}

.auth-divider {
  position: relative;
  text-align: center;
  margin: var(--spacing-lg) 0;
}

.auth-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--border-color);
}

.auth-divider span {
  position: relative;
  background: var(--bg-primary);
  padding: 0 16px;
  color: var(--text-secondary);
  font-size: 14px;
}

.auth-footer {
  text-align: center;
  margin-top: var(--spacing-lg);
  color: var(--text-secondary);
  font-size: 14px;
}

.auth-footer a {
  color: var(--cyan-primary);
  text-decoration: none;
  font-weight: 600;
  padding: 12px 4px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.password-wrapper {
  position: relative;
}

.password-wrapper .auth-input {
  padding-right: 48px;
}

.toggle-password {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.otp-form {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  margin-top: 32px;
}

.otp-inputs {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.otp-digit {
  width: 48px;
  height: 56px;
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 28px;
  font-weight: 700;
  text-align: center;
  outline: none;
  transition: all var(--transition-fast);
}

.otp-digit:focus {
  border-color: var(--cyan-primary);
  box-shadow: 0 0 0 3px var(--cyan-light);
}

.otp-resend {
  display: flex;
  gap: 8px;
  align-items: center;
  color: var(--text-gray);
  font-size: 14px;
}

.resend-btn {
  background: none;
  border: none;
  color: var(--cyan-primary);
  font-weight: 600;
  cursor: pointer;
}

.resend-btn:disabled {
  color: var(--text-gray);
  cursor: not-allowed;
}

/* ============================================
SUBSCRIPTION SCREEN
============================================ */
.subscription-container {
  padding: var(--spacing-xl);
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  overflow-y: auto;
  height: 100%;
}

.subscription-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.subscription-header h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.subscription-header p {
  color: var(--text-secondary);
  font-size: 16px;
}

.subscription-logo {
  width: 64px;
  height: 64px;
  border-radius: 12px;
  object-fit: cover;
  margin: 0 auto 16px;
}

.pricing-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.pricing-card {
  padding: var(--spacing-xl);
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  position: relative;
  transition: all var(--transition-base);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--cyan-primary);
}

.pricing-card.popular {
  border-color: var(--cyan-primary);
  background: linear-gradient(135deg, var(--card-bg) 0%, rgba(14, 165, 233, 0.1) 100%);
}

.popular-badge {
  position: absolute;
  top: -12px;
  right: 24px;
  padding: 4px 12px;
  background: var(--cyan-primary);
  color: white;
  font-size: 12px;
  font-weight: 700;
  border-radius: 12px;
}

.pricing-card h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.price {
  font-size: 48px;
  font-weight: 800;
  color: var(--cyan-primary);
  margin-bottom: var(--spacing-lg);
}

.price span {
  font-size: 16px;
  color: var(--text-secondary);
  font-weight: 400;
}

.features {
  list-style: none;
  margin-bottom: var(--spacing-xl);
}

.features li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: var(--spacing-sm) 0;
  color: var(--text-secondary);
  font-size: 15px;
}

.features li img {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
}

/* ============================================
HOME SCREEN - iOS OPTIMIZED
============================================ */
.header-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-logo-image {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: cover;
}

.header-avatar-image {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
}

.home-content {
  padding: var(--spacing-lg);
  padding-bottom: calc(100px + var(--safe-area-bottom));
}

.record-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl) 0 var(--spacing-lg);
  gap: var(--spacing-md);
}

.record-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: transform var(--transition-base);
  position: relative;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.record-btn:active {
  transform: scale(0.95);
}

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

/* Glow effect for record button */
.record-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--cyan-primary);
  opacity: 0.3;
  filter: blur(20px);
  animation: recordPulse 2s ease-out infinite;
}

@keyframes recordPulse {
  0%, 100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.3;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.2);
    opacity: 0.5;
  }
}

.record-btn-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90px;
  height: 90px;
  border-radius: 50%;
  border: 2px solid var(--cyan-primary);
  opacity: 0;
  animation: recordPulseRing 2.5s ease-out infinite;
  pointer-events: none;
}

.record-icon {
  width: 64px;
  height: 64px;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(14, 165, 233, 0.4));
  position: relative;
  z-index: 1;
}

.record-label {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-top: var(--spacing-sm);
}

.record-disabled-message {
  color: var(--error);
  font-size: 14px;
  margin-top: 8px;
}

.recordings-section {
  margin-top: var(--spacing-xl);
}

.recordings-section h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

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

.recordings-list.grid-view {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.recordings-list.grid-view .recording-item {
  padding: var(--spacing-sm) var(--spacing-md);
}

.recordings-list.grid-view .recording-summary {
  display: none;
}

.recordings-list.grid-view .recording-tags {
  display: none;
}

.recordings-list.grid-view .recording-header {
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}

.recording-item {
  padding: var(--spacing-md);
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
}

.recording-item:hover {
  background: var(--bg-secondary);
  border-color: var(--cyan-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.recording-item:active {
  transform: scale(0.98);
}

.recording-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.recording-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.recording-star {
  color: var(--warning);
  font-size: 16px;
}

.recording-duration {
  font-size: 14px;
  color: var(--text-gray);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.recording-meta {
  display: flex;
  gap: var(--spacing-sm);
  font-size: 13px;
  color: var(--text-gray);
  margin-bottom: var(--spacing-sm);
}

.recording-summary {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.recording-tags {
  display: flex;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-sm);
  flex-wrap: wrap;
}

.recording-tag {
  font-size: 11px;
  padding: 2px 8px;
  background: var(--cyan-bg);
  color: var(--cyan-primary);
  border-radius: var(--radius-full);
  font-weight: 500;
}

/* ============================================
LIBRARY SCREEN
============================================ */
.search-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-md);
}

.search-bar input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 15px;
  outline: none;
  font-family: inherit;
}

.search-bar input::placeholder {
  color: var(--text-gray);
}

.filters {
  display: flex;
  gap: 8px;
  margin-bottom: var(--spacing-lg);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.filters::-webkit-scrollbar {
  display: none;
}

.filter-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  font-family: inherit;
  min-height: 44px;
}

.filter-chip img {
  width: 14px;
  height: 14px;
}

.filter-chip.active {
  background: var(--cyan-primary);
  color: white;
  border-color: var(--cyan-primary);
}

.filter-chip.active img {
  filter: brightness(0) invert(1) !important;
}

.filter-chip:hover {
  background: var(--bg-secondary);
  border-color: var(--cyan-primary);
}

.view-toggle {
  display: flex;
  background: var(--card-bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.view-toggle-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.view-toggle-btn.active {
  background: var(--cyan-primary);
}

.view-toggle-btn.active img {
  filter: brightness(0) invert(1) !important;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  text-align: center;
}

.empty-state img {
  opacity: 0.4;
  margin-bottom: 16px;
  filter: brightness(0) invert(0.5);
}

.empty-state p {
  color: var(--text-gray);
  font-size: 15px;
  margin-bottom: 4px;
}

.empty-state .empty-hint {
  font-size: 13px;
  opacity: 0.7;
}

.empty-state-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--cyan-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.empty-state-icon img {
  opacity: 0.8;
  filter: brightness(0) saturate(100%) invert(59%) sepia(94%) saturate(2000%) hue-rotate(176deg) brightness(97%) contrast(93%);
}

.empty-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 10px 24px;
  background: var(--cyan-primary);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: inherit;
}

.empty-cta:hover {
  background: var(--cyan-hover);
  transform: translateY(-1px);
}

/* ============================================
CHAT SCREEN
============================================ */
#chat-screen {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  position: relative;
}

#chat-screen .screen-header {
  position: sticky;
  top: 0;
  background: var(--bg-primary);
  z-index: 10;
  flex-shrink: 0;
}

#chat-screen .screen-content {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  padding: 0;
  padding-bottom: 0;
}

.suggested-prompts {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 12px 16px;
  flex-shrink: 0;
  scrollbar-width: none;
}

.suggested-prompts::-webkit-scrollbar {
  display: none;
}

.prompt-chip {
  padding: 8px 16px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  white-space: nowrap;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-secondary);
  transition: all var(--transition-base);
  flex-shrink: 0;
  font-family: inherit;
  min-height: 44px;
}

.prompt-chip:hover {
  background: var(--cyan-primary);
  color: white;
  border-color: var(--cyan-primary);
}

#chat-messages {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow-y: auto;
  padding: 20px 16px;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
  min-height: 0;
}

.chat-message {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  max-width: 85%;
  animation: slideUp 0.3s ease-out;
}

.chat-message.user {
  flex-direction: row;
  align-self: flex-start;
}

.chat-message.user .message-content {
  background: var(--cyan-primary);
  color: white;
  border-radius: 4px 16px 16px 16px;
}

.chat-message.assistant {
  flex-direction: row-reverse;
  align-self: flex-end;
}

.chat-message.assistant .message-content {
  background: var(--card-bg);
  border-radius: 16px 4px 16px 16px;
}

.message-avatar {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
}

.avatar-image {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--cyan-primary);
}

.message-avatar.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--cyan-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.message-avatar.user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: none !important;
}

.message-content {
  flex: 1;
  min-width: 0;
  padding: 12px 16px;
  border-radius: var(--radius-md);
}

.message-sender {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.chat-message.user .message-sender {
  color: rgba(255, 255, 255, 0.9);
}

.message-content p {
  margin: 0;
  line-height: 1.5;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.chat-input-container {
  flex-shrink: 0;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding: 12px 16px;
  padding-bottom: max(12px, var(--safe-area-bottom));
  display: flex;
  align-items: center;
  gap: 12px;
}

.chat-input-container input {
  flex: 1;
  padding: 12px 16px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  color: var(--text-primary);
  font-size: 15px;
  outline: none;
  min-height: 44px;
  font-family: inherit;
}

.chat-input-container input:focus {
  border-color: var(--cyan-primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.chat-input-container input::placeholder {
  color: var(--text-gray);
}

/* ============================================
SETTINGS SCREEN
============================================ */
.profile-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-xl);
}

.profile-avatar-wrap {
  position: relative;
  flex-shrink: 0;
}

.profile-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 3px solid var(--cyan-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.profile-avatar img {
  width: 36px;
  height: 36px;
  filter: brightness(0) invert(0.5);
  object-fit: cover;
}

.avatar-edit-btn {
  position: absolute;
  bottom: -2px;
  right: -2px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--cyan-primary);
  border: 2px solid var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.avatar-edit-btn img {
  filter: brightness(0) invert(1) !important;
  width: 14px;
  height: 14px;
}

.profile-info {
  flex: 1;
  min-width: 0;
}

.profile-info h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 2px;
}

.profile-info p {
  font-size: 13px;
  color: var(--text-gray);
  margin-bottom: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.profile-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  background: rgba(14, 165, 233, 0.15);
  color: var(--cyan-primary);
}

.settings-section {
  margin-bottom: var(--spacing-xl);
}

.settings-section h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-gray);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-md);
}

.settings-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 8px;
  cursor: pointer;
  transition: all var(--transition-base);
  min-height: 44px;
}

.settings-item:hover {
  background: var(--bg-secondary);
  border-color: var(--cyan-primary);
}

.settings-item img {
  filter: brightness(0) invert(0.5);
}

.settings-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.settings-label {
  font-size: 15px;
  font-weight: 600;
}

.settings-description {
  font-size: 13px;
  color: var(--text-gray);
}

.settings-select {
  padding: 8px 12px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
  min-height: 44px;
}

.settings-info-footer {
  text-align: center;
  padding: 32px 0 16px;
  color: var(--text-gray);
  font-size: 13px;
}

/* ============================================
RECORDING SCREEN - iOS OPTIMIZED
============================================ */
.recording-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  padding: 0 var(--spacing-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* Override close-btn safe area since overlay already handles it */
.recording-container .close-btn {
  top: var(--spacing-md);
}

.recording-inner {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.recording-status {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
  transition: color var(--transition-base);
}

.recording-status.paused {
  color: var(--warning);
}

.timer {
  font-size: 48px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  padding: var(--spacing-sm) 0 var(--spacing-md);
  color: var(--cyan-primary);
  -webkit-user-select: none;
  user-select: none;
}

.waveform-container {
  width: 100%;
  height: 48px;
  margin: 0 0 var(--spacing-md);
  background: var(--card-bg);
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

#waveform-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.recording-controls {
  display: flex;
  gap: var(--spacing-xl);
  align-items: center;
  padding: var(--spacing-xl) 0;
  flex-shrink: 0;
}

.control-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}

.control-label {
  font-size: 12px;
  color: var(--text-secondary);
}

.control-btn {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: 50%;
  cursor: pointer;
  transition: all var(--transition-base);
  -webkit-appearance: none;
  min-width: 44px;
  min-height: 44px;
}

.control-btn:hover {
  background: var(--bg-secondary);
  border-color: var(--cyan-primary);
  transform: scale(1.05);
}

.control-btn:active {
  transform: scale(0.95);
}

.control-btn img {
  filter: brightness(0) invert(0.8);
  pointer-events: none;
}

.stop-btn {
  background: var(--error);
  border-color: var(--error);
}

.stop-btn:hover {
  background: #dc2626;
  border-color: #dc2626;
}

.stop-btn img {
  filter: brightness(0) invert(1) !important;
}

/* ============================================
NOTE SCREEN - iOS OPTIMIZED (PILL TABS + FLOATING PLAYER)
============================================ */

/* Screen wrapper - fills overlay with flex column layout */
.note-screen-wrapper {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.note-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background: var(--bg-primary);
  flex-shrink: 0;
  border-bottom: 1px solid var(--border-color);
}

.note-header .back-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: transparent;
  border: none;
  color: var(--cyan-primary);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  padding: var(--spacing-sm);
  min-height: 44px;
  min-width: 44px;
  position: static;
}

.note-header .back-btn img {
  filter: brightness(0) saturate(100%) invert(59%) sepia(94%) saturate(2000%) hue-rotate(176deg) brightness(97%) contrast(93%);
}

.note-header .back-btn span {
  margin-left: 2px;
}

.note-title-section {
  padding: 0 var(--spacing-md) var(--spacing-md);
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.note-title-input {
  width: 100%;
  background: transparent;
  border: none;
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  outline: none;
  padding: var(--spacing-sm) 0;
  font-family: inherit;
  -webkit-appearance: none;
}

.note-title-input:focus {
  font-size: 16px;
}

.note-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 14px;
  color: var(--text-gray);
  margin-top: var(--spacing-xs);
}

.meta-separator {
  color: var(--text-gray);
}

.star-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
}

.star-btn img {
  width: 18px;
  height: 18px;
  filter: brightness(0) invert(0.5);
  transition: filter var(--transition-fast);
}

.note-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

/* Pill Tab Navigation */
.note-tabs {
  display: flex;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: var(--bg-primary);
  flex-shrink: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  border-bottom: 1px solid var(--border-color);
}

.note-tabs::-webkit-scrollbar {
  display: none;
}

.note-tab {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 10px 16px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: all var(--transition-base);
  white-space: nowrap;
  min-height: 44px;
  -webkit-appearance: none;
}

.note-tab img {
  filter: brightness(0) invert(0.5);
  width: 16px;
  height: 16px;
}

.note-tab.active {
  background: var(--cyan-primary);
  color: white;
  border-color: var(--cyan-primary);
}

.note-tab.active img {
  filter: brightness(0) invert(1) !important;
}

.note-tab:hover:not(.active) {
  background: var(--card-bg-light);
  border-color: var(--cyan-primary);
}

/* Note content - scrollable area */
.note-content {
  flex: 1;
  min-height: 0;
  padding: var(--spacing-md);
  padding-bottom: calc(80px + var(--safe-area-bottom));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

/* Tab panels */
.note-tab-panel {
  display: none;
}

.note-tab-panel.active {
  display: block;
}

/* Summary Card */
.summary-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

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

.summary-header h4 {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.summary-text {
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.8;
}

.summary-text p {
  margin-bottom: var(--spacing-sm);
}

.summary-text p:last-child {
  margin-bottom: 0;
}

/* Quick Actions */
.quick-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.quick-actions::-webkit-scrollbar {
  display: none;
}

.quick-action-btn {
  padding: 10px 16px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-base);
  font-family: inherit;
  min-height: 44px;
}

.quick-action-btn:hover {
  background: var(--card-bg-light);
  border-color: var(--cyan-primary);
  color: var(--cyan-primary);
}

/* Transcription */
.note-transcript {
  margin-bottom: var(--spacing-lg);
}

.transcription-text {
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.8;
}

.transcript-segment {
  margin-bottom: var(--spacing-lg);
}

.speaker-label-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.speaker-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--cyan-primary);
  color: white;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.speaker-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
}

.speaker-timestamp {
  font-size: 12px;
  color: var(--text-gray);
  font-variant-numeric: tabular-nums;
}

.transcript-text {
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.8;
  margin: 0;
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* Tags & Folders */
.note-tags, .note-folders {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--text-gray);
  padding: var(--spacing-sm) 0;
}

.tags-label, .folders-label {
  font-weight: 600;
  color: var(--text-secondary);
}

#tags-list {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.tag {
  padding: 4px 10px;
  background: var(--cyan-bg);
  color: var(--cyan-primary);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
}

.no-tags {
  color: var(--text-gray);
  font-style: italic;
  font-size: 13px;
}

#folder-name {
  color: var(--text-secondary);
}

.delete-btn {
  margin-top: var(--spacing-xl);
  color: var(--error);
  border-color: var(--error);
}

.delete-btn:hover {
  background: rgba(239, 68, 68, 0.1);
}

/* Floating Play Button */
.floating-play-btn {
  position: fixed;
  bottom: calc(24px + var(--safe-area-bottom));
  right: var(--spacing-lg);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--cyan-primary);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-lg), 0 0 20px rgba(14, 165, 233, 0.4);
  z-index: 1002;
  transition: all var(--transition-base);
  min-width: 44px;
  min-height: 44px;
}

.floating-play-btn:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(14, 165, 233, 0.6);
}

.floating-play-btn:active {
  transform: scale(0.95);
}

.floating-play-btn.hidden {
  display: none !important;
}

.floating-play-btn img {
  filter: brightness(0) invert(1) !important;
  width: 24px;
  height: 24px;
}

/* Note Chat */
.note-chat-section {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.note-chat-messages {
  flex: 1;
  min-height: 200px;
  max-height: 50vh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.note-chat-message {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.note-chat-message.user {
  flex-direction: row-reverse;
}

.note-chat-message .message-content {
  background: var(--bg-secondary);
  padding: 12px 16px;
  border-radius: 4px 16px 16px 16px;
  max-width: 80%;
  font-size: 14px;
  line-height: 1.5;
  word-wrap: break-word;
  color: var(--text-primary);
}

.note-chat-message.user .message-content {
  background: var(--cyan-primary);
  color: white;
  border-radius: 16px 4px 16px 16px;
}

.note-chat-input-container {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.note-chat-input-container input {
  flex: 1;
  padding: 12px 16px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-size: 16px;
  outline: none;
  min-height: 44px;
  font-family: inherit;
  -webkit-appearance: none;
}

.note-chat-input-container input:focus {
  border-color: var(--cyan-primary);
  box-shadow: 0 0 0 3px var(--cyan-light);
}

.note-chat-input-container input::placeholder {
  color: var(--text-gray);
}

.note-chat-input-container .clear-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 10px 16px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: inherit;
  min-height: 44px;
}

.note-chat-input-container .clear-btn:hover {
  border-color: var(--cyan-primary);
  color: var(--cyan-primary);
}

.note-chat-input-container .clear-btn img {
  filter: brightness(0) invert(0.5);
  width: 16px;
  height: 16px;
}

.note-chat-input-container .send-btn {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: 50%;
  background: var(--cyan-primary);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--transition-base);
}

.note-chat-input-container .send-btn img {
  filter: brightness(0) invert(1) !important;
  width: 20px;
  height: 20px;
}

.note-chat-input-container .send-btn:hover {
  background: var(--cyan-dark);
}

/* ============================================
SHARE MODAL
============================================ */
.share-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  animation: fadeIn 0.2s ease-out;
}

.share-modal.hidden {
  display: none !important;
}

.share-modal-content {
  width: 100%;
  max-width: 500px;
  background: var(--bg-secondary);
  border-radius: 20px 20px 0 0;
  padding: 24px;
  padding-bottom: 40px;
  animation: slideUp 0.3s ease-out;
  max-height: 85vh;
  overflow-y: auto;
}

.share-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.share-modal-header h2 {
  font-size: 20px;
  font-weight: 700;
  text-align: center;
  flex: 1;
}

.share-options-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.share-option-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 8px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: inherit;
  color: var(--text-primary);
  min-height: 44px;
}

.share-option-btn:hover {
  border-color: var(--cyan-primary);
  background: var(--bg-secondary);
}

.share-option-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--cyan-light);
  display: flex;
  align-items: center;
  justify-content: center;
}

.share-option-icon img {
  filter: brightness(0) saturate(100%) invert(59%) sepia(94%) saturate(2000%) hue-rotate(176deg) brightness(97%) contrast(93%);
}

.share-option-btn span {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.share-settings {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.share-setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
}

.share-setting-row > span {
  font-size: 14px;
  color: var(--text-secondary);
}

.format-toggle {
  display: flex;
  background: var(--card-bg);
  border-radius: 20px;
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.format-btn {
  padding: 6px 16px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: inherit;
  min-height: 44px;
}

.format-btn.active {
  background: var(--cyan-primary);
  color: white;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  transition: all var(--transition-base);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  height: 18px;
  width: 18px;
  left: 2px;
  bottom: 2px;
  background: var(--text-gray);
  border-radius: 50%;
  transition: all var(--transition-base);
}

.toggle-switch input:checked + .toggle-slider {
  background: var(--cyan-primary);
  border-color: var(--cyan-primary);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(20px);
  background: white;
}

/* ============================================
FOLDER MODAL
============================================ */
.folder-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease-out;
}

.folder-modal.hidden {
  display: none !important;
}

.folder-modal-content {
  width: 90%;
  max-width: 420px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 24px;
  animation: slideUp 0.3s ease-out;
  max-height: 80vh;
  overflow-y: auto;
}

.folder-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.folder-modal-header h2 {
  font-size: 20px;
  font-weight: 700;
}

.folder-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
  max-height: 240px;
  overflow-y: auto;
}

.folder-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: inherit;
  color: var(--text-primary);
  width: 100%;
  min-height: 44px;
}

.folder-item:hover {
  background: var(--bg-secondary);
  border-color: var(--cyan-primary);
}

.folder-item.active {
  border-color: var(--cyan-primary);
  background: var(--cyan-light);
}

.folder-item img {
  filter: brightness(0) invert(0.5);
}

.folder-item-name {
  flex: 1;
  font-size: 15px;
}

.folder-current-badge {
  font-size: 11px;
  padding: 2px 8px;
  background: var(--cyan-primary);
  color: white;
  border-radius: 12px;
  font-weight: 600;
}

.folder-create {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.folder-create input {
  flex: 1;
  padding: 10px 14px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  font-family: inherit;
  min-height: 44px;
}

.folder-create input:focus {
  border-color: var(--cyan-primary);
  box-shadow: 0 0 0 3px var(--cyan-light);
}

.folder-create input::placeholder {
  color: var(--text-gray);
}

.folder-loading, .folder-error, .folder-empty {
  text-align: center;
  padding: 20px;
  color: var(--text-gray);
  font-size: 14px;
}

.folder-error {
  color: var(--error);
}

/* ============================================
BUTTONS - iOS OPTIMIZED
============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  text-decoration: none;
  min-height: 44px;
  min-width: 44px;
  font-family: inherit;
  -webkit-appearance: none;
}

.btn-primary {
  background: var(--cyan-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--cyan-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

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

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

.btn-full {
  width: 100%;
}

.btn-social {
  background: white;
  color: #1f2937;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid #e5e7eb;
  transition: all var(--transition-base);
  min-height: 44px;
  font-family: inherit;
}

.btn-social:hover {
  background: #f9fafb;
  box-shadow: var(--shadow-md);
}

.social-icon {
  width: 20px;
  height: 20px;
  object-fit: contain;
  filter: none !important;
}

.icon-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  -webkit-appearance: none;
  min-width: 44px;
  min-height: 44px;
}

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

.icon-btn.small {
  width: 32px;
  height: 32px;
  min-width: 32px;
  min-height: 32px;
}

.icon-btn img {
  filter: brightness(0) invert(0.5);
  transition: filter var(--transition-fast);
}

.icon-btn:hover img {
  filter: brightness(0) saturate(100%) invert(59%) sepia(94%) saturate(2000%) hue-rotate(176deg) brightness(97%) contrast(93%);
}

.text-btn {
  background: none;
  border: none;
  color: var(--cyan-primary);
  cursor: pointer;
  font-size: 14px;
  padding: var(--spacing-sm);
  min-height: 44px;
  min-width: 44px;
  font-family: inherit;
}

.back-btn {
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  -webkit-appearance: none;
  min-width: 44px;
  min-height: 44px;
}

.back-btn:hover {
  background: var(--bg-secondary);
  border-color: var(--cyan-primary);
}

.close-btn {
  position: absolute;
  top: max(var(--spacing-lg), var(--safe-area-top));
  right: var(--spacing-lg);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 100;
  min-width: 44px;
  min-height: 44px;
}

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

.close-btn img {
  filter: brightness(0) invert(0.7);
  pointer-events: none;
}

.close-btn:hover img {
  filter: brightness(0) saturate(100%) invert(44%) sepia(87%) saturate(2000%) hue-rotate(340deg) brightness(95%);
}

/* ============================================
BOTTOM NAVIGATION - iOS OPTIMIZED
============================================ */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(60px + var(--safe-area-bottom));
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-around;
  align-items: flex-start;
  padding: 8px 8px var(--safe-area-bottom);
  z-index: 1000;
  padding-left: max(8px, var(--safe-area-left));
  padding-right: max(8px, var(--safe-area-right));
}


.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 8px 16px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-width: 64px;
  border-radius: var(--radius-sm);
  -webkit-appearance: none;
  min-height: 44px;
}

.nav-item span {
  font-size: 11px;
  font-weight: 500;
}

.nav-item.active {
  color: var(--cyan-primary);
}

.nav-item:hover {
  background: var(--card-bg);
}

.nav-item:active {
  transform: scale(0.92);
}

.nav-icon {
  width: 24px;
  height: 24px;
  filter: brightness(0) invert(0.5);
  transition: filter var(--transition-fast);
}

.nav-item.active .nav-icon {
  filter: brightness(0) saturate(100%) invert(59%) sepia(94%) saturate(2000%) hue-rotate(176deg) brightness(97%) contrast(93%);
}

.bottom-nav.hidden {
  display: none !important;
}

/* ============================================
TOAST NOTIFICATIONS - iOS OPTIMIZED
============================================ */
.toast-container {
  position: fixed;
  top: max(var(--spacing-lg), var(--safe-area-top));
  right: var(--spacing-lg);
  left: var(--spacing-lg);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  pointer-events: none;
}

.toast {
  padding: 14px 16px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  box-shadow: var(--shadow-lg);
  min-width: 250px;
  max-width: 360px;
  margin: 0 auto;
  opacity: 1;
  animation: slideIn 0.3s ease-out forwards;
  transition: opacity 0.3s ease;
  pointer-events: auto;
}

.toast.success {
  border-color: var(--success);
  background: rgba(16, 185, 129, 0.1);
}

.toast.error {
  border-color: var(--error);
  background: rgba(239, 68, 68, 0.1);
}

.toast.info {
  border-color: var(--cyan-primary);
  background: var(--cyan-light);
}

/* ============================================
LOADING SCREEN & INSTALL PROMPT
============================================ */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  z-index: 9999;
  padding-top: var(--safe-area-top);
}

.loading-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.loading-logo {
  width: 80px;
  height: 80px;
  border-radius: 16px;
  object-fit: cover;
  margin-bottom: 24px;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border-color);
  border-top-color: var(--cyan-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loading-screen p {
  margin-top: var(--spacing-lg);
  color: var(--text-secondary);
}

.install-prompt {
  position: fixed;
  bottom: calc(80px + var(--safe-area-bottom));
  left: var(--spacing-md);
  right: var(--spacing-md);
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  animation: slideUp 0.3s ease-out;
}

.install-content {
  text-align: center;
}

.install-content h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.install-content p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: var(--spacing-md);
}

.install-buttons {
  display: flex;
  gap: var(--spacing-sm);
}

.install-buttons .btn {
  flex: 1;
}

/* ============================================
MICRO-INTERACTIONS
============================================ */
.btn:active {
  transform: scale(0.97);
}

.recording-item:active {
  transform: scale(0.98);
}

.nav-item:active {
  transform: scale(0.92);
}

.filter-chip:active {
  transform: scale(0.95);
}

/* ============================================
ANIMATIONS
============================================ */
@keyframes shimmer {
  0% {
    background-position: -400px 0;
  }
  100% {
    background-position: 400px 0;
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

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

@keyframes typing {
  0%, 60%, 100% {
    opacity: 0;
  }
  30% {
    opacity: 1;
  }
}

@keyframes recordPulseRing {
  0% {
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 0.6;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.5);
    opacity: 0;
  }
}

.typing-dot {
  animation: typing 1.4s infinite;
  opacity: 0;
}

.typing-dot:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
  animation-delay: 0.4s;
}

/* ============================================
SKELETON LOADING
============================================ */
.skeleton {
  background: linear-gradient(90deg, var(--card-bg) 25%, var(--bg-secondary) 50%, var(--card-bg) 75%);
  background-size: 800px 100%;
  animation: shimmer 1.5s infinite linear;
  border-radius: var(--radius-md);
}

.skeleton-card {
  height: 96px;
  margin-bottom: var(--spacing-md);
  border: 1px solid var(--border-color);
  padding: var(--spacing-md);
}

.skeleton-line {
  height: 14px;
  margin-bottom: 8px;
  border-radius: 4px;
}

.skeleton-line.short {
  width: 40%;
}

.skeleton-line.medium {
  width: 70%;
}

/* ============================================
BUTTON LOADING STATE
============================================ */
.btn.loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* ============================================
UTILITY CLASSES
============================================ */
.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================
ACCESSIBILITY
============================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 10000;
  padding: 12px 24px;
  background: var(--cyan-primary);
  color: white;
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 16px;
}

:focus-visible {
  outline: 2px solid var(--cyan-primary);
  outline-offset: 3px;
}

:focus:not(:focus-visible) {
  outline: none;
}

::selection {
  background: var(--cyan-primary);
  color: white;
}

@media (forced-colors: active) {
  :focus-visible {
    outline: 2px solid LinkText;
  }
  .btn, .filter-chip, .nav-item {
    border: 1px solid ButtonText;
  }
}

/* ============================================
RESPONSIVE & SAFE AREA
============================================ */
@media (max-width: 768px) {
  .timer {
    font-size: 40px;
  }
  .pricing-cards {
    grid-template-columns: 1fr;
  }
  .toast-container {
    top: auto;
    bottom: calc(80px + var(--safe-area-bottom));
    right: var(--spacing-md);
    left: var(--spacing-md);
  }
  .toast {
    min-width: auto;
    max-width: none;
  }
  .share-modal-content {
    border-radius: 16px 16px 0 0;
  }
}

/* Small screen breakpoint for cramped layouts */
@media (max-width: 360px) {
  .otp-inputs {
    gap: 8px;
  }
  .otp-digit {
    width: 40px;
    height: 48px;
    font-size: 24px;
  }
  .recording-controls {
    gap: var(--spacing-md);
  }
  .control-btn {
    width: 56px;
    height: 56px;
  }
  .timer {
    font-size: 40px;
  }
  .note-header {
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
  }
  .note-actions {
    gap: 2px;
  }
  .pricing-card {
    padding: var(--spacing-lg);
  }
  .price {
    font-size: 36px;
  }
  .note-tabs {
    padding: var(--spacing-sm);
    gap: var(--spacing-xs);
  }
  .note-tab {
    padding: 8px 12px;
    font-size: 13px;
  }
  .note-tab img {
    width: 14px;
    height: 14px;
  }
  .floating-play-btn {
    width: 48px;
    height: 48px;
    bottom: calc(20px + var(--safe-area-bottom));
    right: var(--spacing-md);
  }
  .note-title-input {
    font-size: 18px;
  }
}

@supports (padding: max(0px)) {
  .share-modal-content {
    padding-bottom: max(40px, calc(24px + var(--safe-area-bottom)));
  }
}

/* ============================================
iOS SPECIFIC FIXES
============================================ */
@supports (-webkit-touch-callout: none) {
  .screen {
    height: 100vh;
    height: -webkit-fill-available;
  }

  .screen-header {
    position: -webkit-sticky;
    position: sticky;
  }
}

/* ============================================
REDUCED MOTION
============================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
PRINT STYLES
============================================ */
@media print {
  .bottom-nav,
  .screen-header button,
  .install-prompt,
  .toast-container,
  .floating-play-btn {
    display: none !important;
  }
}