/* ==========================================================================
   Rainbow Gathering Songbook - UI/UX Pro Max Stylesheet
   Design System: Organic Biophilic & Warm Campfire Glow
   Features: 44px Touch Targets, High Contrast (WCAG AA), SVG Fretboards,
             Campfire Dark Mode, Parchment Light Mode, Print Optimization.
   ========================================================================== */

:root,
[data-theme="dark"],
[data-theme="campfire"] {
  color-scheme: dark;
  /* Campfire Hearth Theme (Warm Wood Charcoal & Amber Flame) */
  --bg-app: #140d0a;
  --bg-surface: #1e140f;
  --bg-surface-elevated: #2b1d16;
  --bg-surface-hover: #3b281f;
  
  --text-main: #fbf5ee;
  --text-secondary: #d6c5b5;
  --text-muted: #a18a78;
  
  --color-primary: #f59e0b;       /* Amber Flame */
  --color-primary-rgb: 245, 158, 11;
  --color-primary-hover: #fbbf24;
  --color-on-primary: #140d0a;
  
  --color-accent: #ea580c;        /* Terracotta Fire */
  --color-accent-soft: rgba(234, 88, 12, 0.18);
  
  --color-heart: #ef4444;         /* Heart Setlist */
  --color-forest: #10b981;        /* Earth Sage */
  
  --border-subtle: #3a251b;
  --border-strong: #5c3c2d;
  
  --chord-color: #f59e0b;
  --chord-bg: rgba(245, 158, 11, 0.15);
  --chord-border: rgba(245, 158, 11, 0.35);
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", Monaco, "Cascadia Code", Consolas, monospace;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px rgba(245, 158, 11, 0.2);
  
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="sacred"] {
  color-scheme: dark;
  /* Sacred Midnight Theme (Deep Nocturnal Indigo & Celestial Sapphire) */
  --bg-app: #070a14;
  --bg-surface: #0e1526;
  --bg-surface-elevated: #16203a;
  --bg-surface-hover: #233054;
  
  --text-main: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  
  --color-primary: #38bdf8;       /* Star Sapphire / Celestial Sky */
  --color-primary-rgb: 56, 189, 248;
  --color-primary-hover: #7dd3fc;
  --color-on-primary: #070a14;
  
  --color-accent: #818cf8;        /* Mystical Indigo */
  --color-accent-soft: rgba(129, 140, 248, 0.18);
  
  --border-subtle: #1e2c47;
  --border-strong: #33446b;
  
  --chord-color: #38bdf8;
  --chord-bg: rgba(56, 189, 248, 0.15);
  --chord-border: rgba(56, 189, 248, 0.35);
  
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.55);
  --shadow-glow: 0 0 25px rgba(56, 189, 248, 0.2);
}

[data-theme="light"],
[data-theme="parchment"] {
  color-scheme: light;
  /* Freundlicher Tagmodus / Wald-Pergament (Sunny, Warm & Highly Readable) */
  --bg-app: #fbf9f4;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f4ede2;
  --bg-surface-hover: #ebe1d2;
  
  --text-main: #1c1917;
  --text-secondary: #44403c;
  --text-muted: #78716c;
  
  --color-primary: #d97706;       /* Warm Sunny Amber / Ochre */
  --color-primary-rgb: 217, 119, 6;
  --color-primary-hover: #b45309;
  --color-on-primary: #ffffff;
  
  --color-accent: #c2410c;
  --color-accent-soft: rgba(194, 65, 12, 0.12);
  
  --border-subtle: #e7dfd4;
  --border-strong: #d3c4b0;
  
  --chord-color: #b45309;
  --chord-bg: rgba(217, 119, 6, 0.1);
  --chord-border: rgba(217, 119, 6, 0.3);
  
  --shadow-sm: 0 2px 8px rgba(70, 50, 20, 0.06);
  --shadow-md: 0 6px 24px rgba(70, 50, 20, 0.12);
  --shadow-glow: 0 0 25px rgba(217, 119, 6, 0.12);
}

[data-theme="oled"] {
  color-scheme: dark;
  /* OLED Black Theme (Pitch Black for Battery Saving & Dark Stages) */
  --bg-app: #000000;
  --bg-surface: #0a0a0a;
  --bg-surface-elevated: #141414;
  --bg-surface-hover: #222222;
  
  --text-main: #ffffff;
  --text-secondary: #a3a3a3;
  --text-muted: #737373;
  
  --border-subtle: #262626;
  --border-strong: #404040;
  
  --shadow-sm: none;
  --shadow-md: none;
  --shadow-glow: none;
}

[data-theme="print"] {
  --bg-app: #ffffff;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f7f7f7;
  --bg-surface-hover: #efefef;
  
  --text-main: #000000;
  --text-secondary: #222222;
  --text-muted: #666666;
  
  --color-primary: #000000;
  --color-primary-hover: #333333;
  --color-on-primary: #ffffff;
  
  --border-subtle: #cccccc;
  --border-strong: #999999;
  
  --chord-color: #000000;
  --chord-bg: rgba(0, 0, 0, 0.06);
  --chord-border: #999999;
  
  --shadow-sm: none;
  --shadow-md: none;
  --shadow-glow: none;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  padding-bottom: 100px;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Keyboard Focus Rings */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Header */
.site-header {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: inherit;
}

.brand-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(234, 88, 12, 0.2));
  border: 1px solid rgba(245, 158, 11, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.brand-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Search Bar */
.search-container {
  flex: 1;
  min-width: 240px;
  max-width: 380px;
  position: relative;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.search-field {
  width: 100%;
  height: 44px;
  padding: 0 1rem 0 2.6rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  color: var(--text-main);
  font-size: 0.92rem;
  outline: none;
  transition: all var(--transition-fast);
}

.search-field:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

/* Controls & Buttons (min 44x44px touch targets) */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 44px;
  min-width: 44px;
  padding: 0.5rem 1rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  transition: all var(--transition-fast);
}

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

.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}

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

.btn-accent {
  background: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
}

.btn-icon-only {
  padding: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
}

.btn-back-hub {
  text-decoration: none;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.4rem 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

.btn-back-hub svg {
  transition: transform var(--transition-fast);
}

.btn-back-hub:hover svg {
  transform: translateX(-2.5px);
}

.btn-pill {
  border-radius: var(--radius-pill);
}

/* Category Filter Chips Bar */
.filter-nav {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.6rem 1.5rem;
  position: sticky;
  top: 65px;
  z-index: 90;
  backdrop-filter: blur(8px);
}

.filter-scroll {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 3px;
  scrollbar-width: thin;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 40px;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-pill);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.chip:hover {
  border-color: var(--color-primary);
  color: var(--text-main);
}

.chip.active {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}

.chip-heart.active {
  background: var(--color-heart);
  color: #ffffff;
  border-color: var(--color-heart);
}

/* Main Layout Grid */
.layout-container {
  max-width: 1280px;
  margin: 1.5rem auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 290px 1fr;
  gap: 2rem;
}

@media (max-width: 920px) {
  .layout-container {
    grid-template-columns: 1fr;
  }
  .sidebar-drawer {
    display: none;
  }
}

/* Sidebar Fast Index */
.sidebar-drawer {
  position: sticky;
  top: 130px;
  max-height: calc(100vh - 150px);
  overflow-y: auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.sidebar-heading {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.song-nav-list {
  list-style: none;
}

.song-nav-item {
  margin-bottom: 0.2rem;
}

.song-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 38px;
  padding: 0.35rem 0.65rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.86rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  overflow: hidden;
}

.song-nav-link:hover {
  background: var(--bg-surface-hover);
  color: var(--text-main);
}

/* Song Feed & Cards */
.song-feed {
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

.song-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.85rem;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  scroll-margin-top: 140px;
  position: relative;
}

.song-card:hover {
  border-color: rgba(245, 158, 11, 0.4);
  box-shadow: var(--shadow-glow);
}

.song-card-header {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1.25rem;
  margin-bottom: 1.25rem;
}

.song-title-group {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
}

.song-title {
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
  line-height: 1.2;
}

.song-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 0.35rem;
  font-style: italic;
}

/* Heart Favorite Button (44x44) */
.btn-heart {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-heart:hover {
  border-color: var(--color-heart);
  color: var(--color-heart);
  transform: scale(1.08);
}

.btn-heart.active {
  background: rgba(239, 68, 68, 0.15);
  border-color: var(--color-heart);
  color: var(--color-heart);
}

/* Badges */
.meta-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-pill);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 600;
}

.badge-amber {
  background: rgba(245, 158, 11, 0.15);
  border-color: rgba(245, 158, 11, 0.35);
  color: var(--color-primary);
}

/* Musician Action Toolbar per Song */
.song-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  background: var(--bg-surface-elevated);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  margin-bottom: 1.25rem;
}

.transpose-cluster {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.transpose-indicator {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-primary);
  min-width: 55px;
  text-align: center;
}

/* Context & Origins Block */
.song-lore {
  background: linear-gradient(to right, rgba(245, 158, 11, 0.08), transparent);
  border-left: 4px solid var(--color-primary);
  padding: 0.85rem 1.2rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 1.5rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.song-lore p + p {
  margin-top: 0.4rem;
}

/* Song Body with Chords */
.song-lyrics-block {
  font-family: var(--font-mono);
  font-size: 1.12rem;
  line-height: 1.85;
  white-space: pre-wrap;
  word-break: break-word;
}

.chord {
  display: inline-block;
  color: var(--chord-color);
  font-weight: 700;
  background: var(--chord-bg);
  border: 1px solid var(--chord-border);
  padding: 0 0.4rem;
  border-radius: 5px;
  cursor: pointer;
  user-select: none;
  transition: all var(--transition-fast);
}

.chord:hover {
  background: var(--color-primary);
  color: var(--color-on-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(245, 158, 11, 0.35);
}

/* Floating Musician Dock (Bottom Bar) */
.musician-dock {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.5);
  padding: 0.65rem 1.5rem;
  z-index: 100;
}

.musician-dock-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.dock-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.speed-readout {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-primary);
  min-width: 44px;
  text-align: center;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(6px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-backdrop.open {
  display: flex;
}

.modal-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  max-width: 720px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

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

.modal-panel-body {
  padding: 1.5rem;
  overflow-y: auto;
}

/* Form Styles for Song Creator */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.45rem;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.65rem 1rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--color-primary);
}

.form-textarea {
  font-family: var(--font-mono);
  min-height: 140px;
  line-height: 1.6;
}

/* Fretboard SVG Display */
.fretboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 1.25rem;
  margin-top: 1rem;
}

.fretboard-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  text-align: center;
  transition: all var(--transition-fast);
}

.fretboard-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.fretboard-name {
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--color-primary);
  margin-bottom: 0.4rem;
}

.fretboard-svg {
  margin: 0 auto;
  display: block;
}

/* Toast */
.toast-notice {
  position: fixed;
  bottom: 90px;
  right: 24px;
  background: var(--color-primary);
  color: var(--color-on-primary);
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(12px);
  transition: all var(--transition-normal);
  pointer-events: none;
  z-index: 2000;
}

.toast-notice.show {
  opacity: 1;
  transform: translateY(0);
}

/* --- Enhanced Chord Badges (Keycap, Neon Glow, Classic) --- */
.chord {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  touch-action: manipulation;
  vertical-align: baseline;
  transition: all 0.16s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 1. KEYCAP: 3D Keyboard Keycap with Beveled Bottom Edge */
[data-badge-style="keycap"] .chord,
body:not([data-badge-style]) .chord {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.95em;
  font-weight: 800;
  padding: 0.12rem 0.55rem;
  margin: 0 0.18rem;
  border-radius: 6px;
  background: var(--bg-surface-elevated, #24201b);
  color: var(--chord-color, var(--color-primary));
  border: 1px solid var(--border-subtle, #3a251b);
  border-bottom: 3.5px solid var(--border-strong, #5c3c2d);
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

[data-badge-style="keycap"] .chord:hover,
body:not([data-badge-style]) .chord:hover {
  transform: translateY(-1px);
  border-color: var(--color-primary);
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

[data-badge-style="keycap"] .chord:active,
body:not([data-badge-style]) .chord:active {
  transform: translateY(2.5px);
  border-bottom-width: 1px;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.2);
}

/* Keycap in Light Mode */
[data-theme="light"][data-badge-style="keycap"] .chord,
[data-theme="parchment"][data-badge-style="keycap"] .chord,
[data-theme="light"]:not([data-badge-style]) .chord,
[data-theme="parchment"]:not([data-badge-style]) .chord {
  background: #ffffff;
  color: var(--chord-color, #b45309);
  border: 1px solid #d6d3d1;
  border-bottom: 3.5px solid #a8a29e;
  box-shadow: 0 3px 0 #cbd5e1, inset 0 1px 0 #ffffff;
}

[data-theme="light"][data-badge-style="keycap"] .chord:hover,
[data-theme="parchment"][data-badge-style="keycap"] .chord:hover {
  border-color: var(--color-primary, #d97706);
  box-shadow: 0 4px 0 #94a3b8;
}

/* 2. GLOW: Radiant Neon Pill Badge (Distinctly Rounded with Halo) */
[data-badge-style="glow"] .chord {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.95em;
  font-weight: 800;
  padding: 0.16rem 0.75rem;
  margin: 0 0.25rem;
  border-radius: 9999px; /* Pill Shape */
  background: rgba(var(--color-primary-rgb, 245, 158, 11), 0.16);
  color: var(--chord-color, var(--color-primary));
  border: 1.5px solid var(--color-primary);
  box-shadow: 0 0 12px rgba(var(--color-primary-rgb, 245, 158, 11), 0.5), 0 0 24px rgba(var(--color-primary-rgb, 245, 158, 11), 0.25), inset 0 0 8px rgba(var(--color-primary-rgb, 245, 158, 11), 0.2);
  text-shadow: 0 0 8px rgba(var(--color-primary-rgb, 245, 158, 11), 0.7);
}

[data-badge-style="glow"] .chord:hover {
  transform: scale(1.08);
  background: rgba(var(--color-primary-rgb, 245, 158, 11), 0.28);
  box-shadow: 0 0 18px var(--color-primary), 0 0 36px rgba(var(--color-primary-rgb, 245, 158, 11), 0.55);
}

[data-badge-style="glow"] .chord:active {
  transform: scale(0.96);
}

/* Glow in Light Mode */
[data-theme="light"][data-badge-style="glow"] .chord,
[data-theme="parchment"][data-badge-style="glow"] .chord {
  background: rgba(217, 119, 6, 0.12);
  border: 1.5px solid var(--color-primary, #d97706);
  box-shadow: 0 0 8px rgba(217, 119, 6, 0.4), 0 0 18px rgba(217, 119, 6, 0.2);
  color: #b45309;
  text-shadow: none;
}

/* 3. CLASSIC: Minimalist Flat Underline (Traditional Songbook) */
[data-badge-style="classic"] .chord {
  font-family: inherit;
  font-size: 1.05em;
  font-weight: 800;
  padding: 0 0.15rem;
  margin: 0;
  border-radius: 0;
  background: transparent;
  border: none;
  border-bottom: 2px dotted var(--chord-color, var(--color-primary));
  box-shadow: none;
  color: var(--chord-color, var(--color-primary));
  text-decoration: none;
  text-shadow: none;
}

[data-badge-style="classic"] .chord:hover {
  border-bottom-style: solid;
  opacity: 0.8;
  transform: translateY(-1px);
}

/* Piano SVG Keyboards */
.piano-svg {
  width: 100%;
  max-width: 440px;
  height: auto;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  padding: 6px;
}
.piano-key {
  cursor: pointer;
  transition: opacity 0.15s ease;
}
.piano-key:hover {
  opacity: 0.85;
}

/* Metronome Styles */
.metro-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid var(--border-subtle);
  transition: transform 0.08s ease, background-color 0.08s ease, box-shadow 0.08s ease;
}
.metro-dot.active {
  transform: scale(1.35);
  background: var(--color-primary, #f59e0b);
  box-shadow: 0 0 14px var(--color-primary, #f59e0b);
}
.metro-dot.active.first {
  background: #ef4444;
  box-shadow: 0 0 18px #ef4444;
}

/* Tuner Styles */
.tuner-string-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 0.4rem;
  min-height: 58px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.tuner-string-btn:hover, .tuner-string-btn.active {
  border-color: var(--color-primary);
  background: rgba(245, 158, 11, 0.15);
  transform: translateY(-2px);
}
.tuner-string-btn .s-note {
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--color-primary);
}
.tuner-string-btn .s-freq {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Accent Swatch Circles */
.accent-swatch {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.accent-swatch:hover {
  transform: scale(1.15);
}
.accent-swatch.active {
  border-color: #ffffff;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
  transform: scale(1.1);
}

/* Print CSS */
@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
    padding-bottom: 0 !important;
  }

  .site-header, .filter-nav, .sidebar-drawer, .song-toolbar, .musician-dock, .modal-backdrop, .toast-notice, .btn-heart {
    display: none !important;
  }

  .layout-container {
    display: block !important;
    max-width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .song-card {
    border: none !important;
    box-shadow: none !important;
    padding: 2cm 0 !important;
    page-break-after: always;
    page-break-inside: avoid;
  }

  .chord {
    background: transparent !important;
    border: none !important;
    color: #000000 !important;
    font-weight: 800 !important;
    text-decoration: underline;
  }
}

/* --- YouTube & YouTube Music Media Player & Floating Mini-Player --- */
.btn-media-player {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #f87171;
  font-weight: 600;
  border-radius: var(--radius-sm, 6px);
  padding: 0.35rem 0.75rem;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.82rem;
}

.btn-media-player:hover, .btn-media-player.active {
  background: #ef4444;
  color: #ffffff;
  border-color: #ef4444;
  box-shadow: 0 0 14px rgba(239, 68, 68, 0.4);
}

.song-player-drawer {
  margin: 1rem 0;
  background: var(--bg-surface-elevated, rgba(15, 23, 42, 0.75));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-md, 12px);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  animation: slideDownPlayer 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideDownPlayer {
  from { opacity: 0; transform: translateY(-8px); max-height: 0; }
  to { opacity: 1; transform: translateY(0); max-height: 650px; }
}

.player-drawer-inner {
  padding: 1rem;
}

.player-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 0.85rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.08));
}

.player-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  color: var(--text-main, #f8fafc);
}

.player-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.yt-badge {
  background: rgba(255, 0, 0, 0.2);
  color: #ff4444;
  border: 1px solid rgba(255, 0, 0, 0.4);
}

.ytm-badge {
  background: rgba(255, 120, 0, 0.2);
  color: #ff9800;
  border: 1px solid rgba(255, 120, 0, 0.4);
}

.player-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.player-video-container {
  position: relative;
  width: 100%;
  max-width: 640px;
  aspect-ratio: 16 / 9;
  max-height: 320px;
  margin: 0 auto;
  border-radius: var(--radius-sm, 8px);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.1));
}

.player-video-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.player-fallback-box {
  padding: 1.5rem;
  text-align: center;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm, 8px);
  color: var(--text-muted, #94a3b8);
}

/* Floating Sticky Mini-Player */
.docked-mini-player {
  position: fixed;
  bottom: 5.5rem;
  right: 1.5rem;
  z-index: 999;
  width: 320px;
  background: var(--bg-surface, rgba(15, 23, 42, 0.95));
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(239, 68, 68, 0.4);
  border-radius: var(--radius-lg, 12px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.6);
  padding: 0.75rem;
  display: none;
  animation: popInMini 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.docked-mini-player.active {
  display: block;
}

@keyframes popInMini {
  from { opacity: 0; transform: scale(0.9) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.mini-player-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-main, #fff);
}

.mini-player-video {
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 170px;
  border-radius: 6px;
  overflow: hidden;
  background: #000;
}

.mini-player-video iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

@media (max-width: 640px) {
  .docked-mini-player {
    left: 1rem;
    right: 1rem;
    bottom: 5rem;
    width: auto;
  }
}