/* ==========================================================================
   HYMN BOOK STUDIO — Modern Design System & Admin Stylesheet
   ========================================================================== */

:root {
  /* Color Palette — Dark Mode (Default) */
  --bg-app: #0c1017;
  --bg-surface: #141b26;
  --bg-surface-elevated: #1b2434;
  --bg-input: #101622;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: #f59e0b;
  --border-hover: rgba(255, 255, 255, 0.16);

  /* Primary & Accent Tones */
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --accent-amber: #f59e0b;
  --accent-amber-light: #fbbf24;
  --accent-amber-glow: rgba(245, 158, 11, 0.18);
  --accent-cyan: #06b6d4;
  --danger-500: #ef4444;
  --danger-hover: #dc2626;
  --success-500: #10b981;

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-serif: 'Lora', Georgia, serif;
  --font-display: 'Cinzel', serif;
  --font-mono: 'Consolas', 'Courier New', monospace;

  /* Text Colors */
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-faint: #6b7280;
  --text-on-accent: #111827;

  /* Shadows & Glassmorphism */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 12px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.6);
  --glass-bg: rgba(20, 27, 38, 0.85);
  --glass-border: rgba(255, 255, 255, 0.08);

  /* Dimensions */
  --header-height: 64px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Variables */
body.theme-light {
  --bg-app: #f4f6f9;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f8fafc;
  --bg-input: #ffffff;
  --border-subtle: #e2e8f0;
  --border-hover: #cbd5e1;
  --border-focus: #d97706;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-faint: #94a3b8;
  --glass-bg: rgba(255, 255, 255, 0.9);
  --glass-border: #e2e8f0;
  --shadow-md: 0 4px 12px -1px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 28px -4px rgba(0, 0, 0, 0.12);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.5;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   Authentication Screen / Login Gatekeeper
   ========================================================================== */
.auth-screen {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 50% 20%, #1e293b 0%, #0b0f19 80%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1.5rem;
}

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

.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(245, 158, 11, 0.12);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  animation: authCardEnter 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes authCardEnter {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(12px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.auth-brand {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.auth-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-amber), #d97706);
  color: #111;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3);
  margin-bottom: 0.35rem;
}

.auth-title {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.auth-title span {
  color: var(--accent-amber);
}

.auth-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.25rem;
  gap: 0.25rem;
}

.auth-tab {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  transition: all var(--transition-fast);
}

.auth-tab.active {
  background: var(--bg-surface-elevated);
  color: var(--text-main);
  box-shadow: var(--shadow-sm);
}

.auth-alert {
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #f87171;
}

.auth-alert.success {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.35);
  color: #34d399;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Google Sign In Button */
.btn-google {
  background: #ffffff;
  color: #1f2937;
  border: 1px solid #e5e7eb;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.65rem 1rem;
  border-radius: var(--radius-sm);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-google:hover {
  background: #f9fafb;
  border-color: #d1d5db;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.15);
  transform: translateY(-1px);
}

.auth-divider {
  display: flex;
  align-items: center;
  text-align: center;
  color: var(--text-faint);
  font-size: 0.74rem;
  margin: 0.2rem 0;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid var(--border-subtle);
}

.auth-divider span {
  padding: 0 0.75rem;
}

.input-with-icon {
  position: relative;
  display: flex;
  align-items: center;
}

.input-with-icon svg {
  position: absolute;
  left: 0.85rem;
  color: var(--text-muted);
  pointer-events: none;
}

.input-with-icon input {
  width: 100%;
  padding-left: 2.35rem;
  padding-right: 2.2rem;
}

.btn-toggle-pwd {
  position: absolute;
  right: 0.75rem;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.auth-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  cursor: pointer;
  color: var(--text-muted);
}

.auth-link {
  color: var(--accent-amber);
  text-decoration: none;
  font-weight: 600;
}

.auth-link:hover {
  text-decoration: underline;
}

.btn-block {
  width: 100%;
  padding: 0.75rem;
  font-size: 0.92rem;
}

.auth-footer {
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-faint);
  border-top: 1px solid var(--border-subtle);
  padding-top: 0.85rem;
}

.auth-footer code {
  color: var(--accent-amber);
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(0, 0, 0, 0.3);
  border-top-color: #111;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}

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

/* ==========================================================================
   Header / Navigation Bar
   ========================================================================== */
.main-dashboard {
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.main-dashboard.hidden {
  display: none !important;
}

.app-header {
  height: var(--header-height);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  z-index: 40;
  flex-shrink: 0;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #1a1304;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-title span {
  color: var(--accent-amber);
}

.brand-subtitle {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.header-stats {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.stat-chip {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
}

.stat-label {
  color: var(--text-muted);
}

.stat-value {
  font-weight: 700;
  color: var(--text-main);
}

.stat-value.highlight {
  color: var(--accent-amber);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* User Profile & Logout */
.user-profile-menu {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: 0.5rem;
  padding-left: 0.75rem;
  border-left: 1px solid var(--border-subtle);
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  padding: 0.25rem 0.65rem 0.25rem 0.35rem;
  border-radius: var(--radius-full);
}

.user-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-amber);
  color: #111;
  font-size: 0.75rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

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

.user-email {
  font-size: 0.78rem;
  color: var(--text-muted);
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ==========================================================================
   Buttons & Interactive Elements
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.55rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.84rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-amber), #d97706);
  color: #1a1304;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-amber-light), var(--accent-amber));
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
}

.btn-secondary {
  background: var(--bg-surface-elevated);
  color: var(--text-main);
  border-color: var(--border-subtle);
}

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

.btn-accent {
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
  border-color: rgba(59, 130, 246, 0.35);
}

.btn-accent:hover {
  background: rgba(59, 130, 246, 0.25);
  color: #93c5fd;
  border-color: #60a5fa;
}

.btn-danger {
  background: rgba(239, 68, 68, 0.12);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background: var(--danger-500);
  color: #ffffff;
  border-color: var(--danger-500);
}

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

.btn-ghost:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-main);
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.78rem;
}

.btn-xs {
  padding: 0.25rem 0.55rem;
  font-size: 0.72rem;
}

.btn-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  color: var(--text-main);
  border-color: var(--border-hover);
}

.btn-icon-sm {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-icon-sm:hover {
  color: var(--text-main);
  border-color: var(--accent-amber);
}

/* ==========================================================================
   3-Column Workspace Layout
   ========================================================================== */
.workspace-layout {
  flex: 1;
  display: grid;
  grid-template-columns: 320px 1fr 380px;
  overflow: hidden;
  height: calc(100vh - var(--header-height));
}

/* ==========================================================================
   COLUMN 1: Hymn Catalog Sidebar
   ========================================================================== */
.sidebar-panel {
  background: var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-header {
  padding: 1rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-box svg {
  position: absolute;
  left: 0.75rem;
  color: var(--text-muted);
  pointer-events: none;
}

.search-box input {
  width: 100%;
  padding: 0.55rem 2rem 0.55rem 2.2rem;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.84rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.search-box input:focus {
  border-color: var(--border-focus);
}

.btn-clear {
  position: absolute;
  right: 0.6rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.1rem;
  cursor: pointer;
}

.filter-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
}

.catalog-count {
  color: var(--text-muted);
  font-weight: 500;
}

.select-sort {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  outline: none;
  cursor: pointer;
}

.hymn-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.hymn-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}

.hymn-card:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--border-subtle);
}

.hymn-card.active {
  background: rgba(245, 158, 11, 0.1);
  border-color: var(--accent-amber);
}

.hymn-id-badge {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  color: var(--accent-amber);
  min-width: 44px;
  text-align: center;
}

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

.hymn-card-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hymn-card-meta {
  font-size: 0.72rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ==========================================================================
   COLUMN 2: Rich Hymn Editor
   ========================================================================== */
.editor-panel {
  background: var(--bg-app);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: 1.5rem 2rem;
  border-right: 1px solid var(--border-subtle);
}

.editor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.editor-meta {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.editor-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
}

.editor-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
}

.editor-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.editor-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
}

.span-2 {
  grid-column: span 2;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-group label .required {
  color: var(--accent-amber);
}

.form-group input,
.form-group textarea,
.form-group select {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-amber-glow);
}

.helper-text {
  font-size: 0.72rem;
  color: var(--text-faint);
}

.lyric-editor-group {
  flex: 1;
}

.lyric-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.4rem;
}

.snippet-buttons {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.btn-snippet {
  padding: 0.2rem 0.55rem;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-snippet:hover {
  background: var(--bg-input);
  border-color: var(--accent-amber);
  color: var(--accent-amber);
}

.stanzas-badge {
  font-size: 0.72rem;
  color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.1);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

#hymnLyric {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  line-height: 1.6;
  resize: vertical;
  min-height: 380px;
}

.editor-footer-help {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.4rem;
  font-size: 0.74rem;
  color: var(--text-faint);
}

.editor-footer-help code {
  background: var(--bg-surface-elevated);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  color: var(--accent-amber);
}

/* ==========================================================================
   COLUMN 3: Live Mobile Phone Simulator
   ========================================================================== */
.preview-panel {
  background: var(--bg-surface);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 1.25rem;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.preview-title-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-amber);
}

.preview-title-box h3 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-main);
}

.preview-controls {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.phone-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Realistic Phone Shell */
.phone-mockup {
  width: 320px;
  height: 640px;
  background: #11141c;
  border-radius: 42px;
  border: 8px solid #232a3b;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.phone-speaker {
  width: 68px;
  height: 5px;
  background: #2a344a;
  border-radius: 10px;
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 30;
}

.phone-status-bar {
  height: 24px;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.65rem;
  font-weight: 600;
  color: #94a3b8;
  margin-top: 6px;
  z-index: 20;
}

.status-icons {
  display: flex;
  gap: 0.35rem;
}

/* Flutter Mock App Bar */
.mock-app-bar {
  background: linear-gradient(135deg, #1e3a8a, #1d4ed8);
  color: #ffffff;
  padding: 0.65rem 0.85rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  z-index: 10;
}

.mock-title-container {
  display: flex;
  flex-direction: column;
  text-align: center;
  overflow: hidden;
  max-width: 190px;
}

.mock-title {
  font-size: 0.88rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mock-subtitle {
  font-size: 0.65rem;
  opacity: 0.85;
}

.mock-back-btn,
.mock-favorite-btn {
  cursor: pointer;
  color: #ffffff;
  display: flex;
  align-items: center;
}

.mock-favorite-btn {
  color: #f87171;
}

/* Mock Floating Audio Bar */
.mock-audio-bar {
  background: rgba(30, 41, 59, 0.95);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.45rem 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  color: #cbd5e1;
}

.audio-play-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-amber);
  color: #111;
  font-size: 0.55rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.audio-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.audio-progress {
  height: 3px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
  overflow: hidden;
}

.audio-fill {
  width: 35%;
  height: 100%;
  background: var(--accent-amber);
}

/* Phone Screen Scroll Body */
.phone-screen-content {
  flex: 1;
  background: #0f172a;
  color: #f1f5f9;
  overflow-y: auto;
  padding: 1rem 1.25rem 2.5rem;
  font-family: var(--font-serif);
}

/* Phone Light Reader Mode */
.phone-mockup.light-reader .phone-screen-content {
  background: #fdfbf7;
  color: #292524;
}

.phone-mockup.sans-font .phone-screen-content {
  font-family: var(--font-sans);
}

.preview-hymn-header {
  text-align: center;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
}

.phone-mockup.light-reader .preview-hymn-header {
  border-bottom-color: rgba(0, 0, 0, 0.1);
}

.phone-hymn-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.25rem;
}

.phone-hymn-author {
  font-size: 0.72rem;
  font-style: italic;
  opacity: 0.75;
}

.phone-lyrics-body {
  font-size: 0.95rem;
  line-height: 1.7;
}

.phone-verse-block {
  margin-bottom: 1.25rem;
}

.phone-verse-num {
  font-weight: 700;
  color: var(--accent-amber);
  margin-bottom: 0.25rem;
  font-size: 0.85rem;
}

.phone-chorus-block {
  margin-bottom: 1.25rem;
  padding-left: 0.85rem;
  border-left: 2px solid var(--accent-amber);
  font-style: italic;
}

.phone-chorus-label {
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--accent-amber);
  margin-bottom: 0.25rem;
}

.phone-home-indicator {
  width: 100px;
  height: 4px;
  background: #64748b;
  border-radius: 4px;
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
}

/* ==========================================================================
   Modals & Overlays
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 1.5rem;
}

.modal-overlay.hidden {
  display: none;
}

.modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 680px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: modalEnter 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-large {
  max-width: 820px;
}

@keyframes modalEnter {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(8px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.modal-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.btn-close-modal {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
}

.btn-close-modal:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  background: var(--bg-input);
}

/* Export Specifics */
.export-options-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 1rem;
}

.export-stats-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-muted);
  padding: 0.5rem 0.85rem;
  background: var(--bg-input);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.code-preview-box {
  background: #080c14;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.code-preview-header {
  background: #111723;
  padding: 0.5rem 0.85rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-subtle);
}

.code-preview-box pre {
  padding: 1rem;
  max-height: 240px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #38bdf8;
  line-height: 1.5;
}

/* Import Specifics */
.drop-zone {
  border: 2px dashed var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.drop-zone:hover,
.drop-zone.drag-active {
  border-color: var(--accent-amber);
  background: var(--accent-amber-glow);
  color: var(--text-main);
}

.upload-link {
  color: var(--accent-amber);
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
}

.import-mode-selection {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  font-size: 0.82rem;
  background: var(--bg-input);
  padding: 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.radio-label {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  cursor: pointer;
}

/* Guide Modal Specifics */
.guide-steps {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.step-card {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-amber), #d97706);
  color: #111;
  font-weight: 800;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
}

.step-body {
  flex: 1;
}

.step-body h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.step-body p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.65rem;
}

.step-body ul, .step-body ol {
  font-size: 0.83rem;
  color: var(--text-muted);
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.guide-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  margin: 0.75rem 0;
}

.guide-table th, .guide-table td {
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border-subtle);
  text-align: left;
}

.guide-table th {
  background: var(--bg-input);
  color: var(--text-main);
}

.guide-callout {
  background: rgba(245, 158, 11, 0.12);
  border-left: 3px solid var(--accent-amber);
  padding: 0.65rem 0.85rem;
  font-size: 0.82rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-top: 0.5rem;
}

.text-amber {
  color: var(--accent-amber);
}

/* ==========================================================================
   Toast Notifications
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 2000;
}

.toast {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.15rem;
  font-size: 0.84rem;
  color: var(--text-main);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.65rem;
  animation: toastIn 0.25s ease-out;
}

.toast.success {
  border-color: var(--success-500);
}

.toast.error {
  border-color: var(--danger-500);
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ==========================================================================
   Utilities & Responsive
   ========================================================================== */
.hidden {
  display: none !important;
}

@media (max-width: 1200px) {
  .workspace-layout {
    grid-template-columns: 280px 1fr 340px;
  }
}

@media (max-width: 1024px) {
  .workspace-layout {
    grid-template-columns: 280px 1fr;
  }
  .preview-panel {
    display: none;
  }
}