/**
 * DJ Songs Website - Main Frontend Stylesheet
 * Mobile-first responsive design with dark/light mode support
 * Bootstrap 5.3 compatible music website theme
 */

/* ===== CSS VARIABLES ===== */
:root {
  /* Colors - Light Mode */
  --primary-color: #6366f1;
  --primary-dark: #4f46e5;
  --secondary-color: #ec4899;
  --accent-color: #10b981;
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border-color: #334155;
  --gradient-card: linear-gradient(145deg, #1e293b 0%, #0f172a 100%);
}

/* ===== BASE STYLES ===== */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* ===== ACCESSIBILITY ===== */
.skip-to-main {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--primary-color);
  color: white;
  padding: 8px;
  border-radius: var(--radius-md);
  text-decoration: none;
  z-index: 9999;
  transition: top var(--transition-fast);
}

.skip-to-main:focus {
  top: 6px;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
  margin-bottom: var(--space-md);
  color: var(--text-secondary);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-dark);
}

/* ===== HEADER STYLES ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-primary);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

/* Top Bar */
.top-bar {
  background: var(--bg-secondary);
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--border-color);
}

.header-info .info-item {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.header-social .social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-primary);
  color: var(--text-secondary);
  margin-left: var(--space-xs);
  transition: all var(--transition-fast);
}

.header-social .social-link:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

/* Main Navigation */
.main-navbar {
  background: var(--bg-primary) !important;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-color);
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--text-primary) !important;
  display: flex;
  align-items: center;
}

.logo-img {
  height: 40px;
  width: auto;
}

.logo-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-nav .nav-link {
  color: var(--text-primary) !important;
  font-weight: 500;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--primary-color) !important;
  background: var(--bg-secondary);
}

.navbar-nav .nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

/* Dropdown Menu */
.dropdown-menu {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-lg);
  padding: var(--space-sm);
  margin-top: var(--space-sm);
}

.dropdown-item {
  color: var(--text-primary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

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

/* Search Form */
.search-form {
  position: relative;
  min-width: 300px;
}

.search-input {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.search-input:focus {
  background: var(--bg-primary);
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgb(99 102 241 / 0.25);
}

.btn-search {
  background: var(--gradient-primary);
  border: none;
  color: white;
  border-radius: var(--radius-lg);
  padding: var(--space-sm) var(--space-md);
  transition: all var(--transition-fast);
}

.btn-search:hover {
  transform: scale(1.05);
}

/* Search Suggestions */
.search-suggestions {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-height: 400px;
  overflow-y: auto;
  z-index: 1000;
}

.search-suggestion {
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.search-suggestion:hover {
  background: var(--bg-secondary);
}

/* Theme Toggle */
.btn-theme-toggle {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-theme-toggle:hover {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
  transform: rotate(180deg);
}

/* Mobile Search */
.mobile-search {
  background: var(--bg-secondary);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-color);
}

/* ===== MAIN CONTENT ===== */
.main-content {
  min-height: calc(100vh - 200px);
  padding: var(--space-xl) 0;
}

/* ===== SONG CARDS ===== */
.songs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin: var(--space-xl) 0;
}

.song-card {
  background: var(--gradient-card);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  position: relative;
  border: 1px solid var(--border-color);
}

.song-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.song-card-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1;
}

.song-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.song-card:hover .song-card-image img {
  transform: scale(1.1);
}

.song-card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.3) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.song-card:hover .song-card-overlay {
  opacity: 1;
}

.play-button {
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  font-size: 1.5rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  backdrop-filter: blur(10px);
}

.play-button:hover {
  background: white;
  transform: scale(1.1);
}

.song-card-content {
  padding: var(--space-lg);
}

.song-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.song-artist {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
}

.song-meta {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.meta-badge {
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.meta-badge.duration {
  background: rgba(236, 72, 153, 0.1);
  color: var(--secondary-color);
}

.meta-badge.downloads {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-color);
}

.song-actions {
  display: flex;
  gap: var(--space-sm);
}

.btn-action {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  border: none;
  border-radius: var(--radius-lg);
  font-weight: 500;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  text-decoration: none;
}

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

.btn-download:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: white;
}

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

.btn-play:hover {
  background: var(--accent-color);
  color: white;
  border-color: var(--accent-color);
}

/* ===== SECTION STYLES ===== */
.section {
  padding: var(--space-2xl) 0;
}

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

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-md);
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ===== CATEGORIES SECTION ===== */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}

.category-card {
  background: var(--gradient-card);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  transition: all var(--transition-normal);
  border: 1px solid var(--border-color);
  text-decoration: none;
}

.category-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  color: inherit;
}

.category-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  margin: 0 auto var(--space-md);
}

.category-name {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.category-count {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ===== PAGINATION ===== */
.pagination {
  justify-content: center;
  margin: var(--space-2xl) 0;
}

.page-item .page-link {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: var(--space-sm) var(--space-md);
  margin: 0 var(--space-xs);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.page-item .page-link:hover,
.page-item.active .page-link {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: var(--space-2xl) 0 var(--space-lg);
  margin-top: auto;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-section h5 {
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section ul li {
  margin-bottom: var(--space-sm);
}

.footer-section ul li a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
  color: var(--primary-color);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: var(--space-md);
  text-align: center;
  color: var(--text-secondary);
}

/* ===== AD STYLES ===== */
.ad-banner {
  padding: var(--space-lg) 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.ad-container {
  max-width: 100%;
}

.ad-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-sm);
}

.sidebar-ad {
  margin: var(--space-xl) 0;
  text-align: center;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1199.98px) {
  .search-form {
    min-width: 250px;
  }
}

@media (max-width: 991.98px) {
  .songs-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--space-lg);
  }
  
  .section-title {
    font-size: 2rem;
  }
}

@media (max-width: 767.98px) {
  .songs-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-md);
  }
  
  .search-form {
    min-width: 200px;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .top-bar {
    display: none !important;
  }
  
  .main-navbar {
    padding: var(--space-sm) 0;
  }
}

@media (max-width: 575.98px) {
  .songs-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
  }
  
  .song-card-content {
    padding: var(--space-md);
  }
  
  .section {
    padding: var(--space-lg) 0;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .categories-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-md);
  }
}

/* ===== LOADING STATES ===== */
.loading {
  text-align: center;
  padding: var(--space-2xl);
}

.spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid var(--border-color);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 1s ease-in-out infinite;
}

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

/* ===== ANIMATIONS ===== */
.fade-in {
  opacity: 0;
  animation: fadeIn 0.5s ease forwards;
}

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

.slide-up {
  transform: translateY(30px);
  opacity: 0;
  animation: slideUp 0.5s ease forwards;
}

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

/* ===== UTILITY CLASSES ===== */
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-gradient {
  background: var(--gradient-primary);
}

.shadow-custom {
  box-shadow: var(--shadow-lg);
}

.border-gradient {
  border: 2px solid transparent;
  background: linear-gradient(var(--bg-primary), var(--bg-primary)) padding-box,
              var(--gradient-primary) border-box;
}

/* ===== DARK MODE SPECIFIC STYLES ===== */
[data-theme="dark"] .song-card {
  background: var(--gradient-card);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .dropdown-menu {
  background: var(--bg-secondary);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .search-suggestions {
  background: var(--bg-secondary);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ===== FOCUS STYLES ===== */
*:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

button:focus,
.btn:focus {
  box-shadow: 0 0 0 0.2rem rgba(99, 102, 241, 0.25);
}

/* ===== HIGH CONTRAST MODE ===== */
@media (prefers-contrast: high) {
  :root {
    --primary-color: #0000ff;
    --secondary-color: #ff00ff;
    --accent-color: #00ff00;
    --text-primary: #000000;
    --text-secondary: #000000;
    --bg-primary: #ffffff;
    --bg-secondary: #ffffff;
    --border-color: #000000;
  }
  
  [data-theme="dark"] {
    --text-primary: #ffffff;
    --text-secondary: #ffffff;
    --bg-primary: #000000;
    --bg-secondary: #000000;
  }
}

/* ===== PRINT STYLES ===== */
@media print {
  .header, .footer, .ad-banner, .sidebar-ad, .btn-theme-toggle {
    display: none !important;
  }
  
  .main-content {
    padding: 0;
  }
  
  .song-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
}

/* ===== SINGLE SONG PAGE STYLES ===== */
.song-hero {
  background: var(--gradient-primary);
  color: white;
  padding: var(--space-2xl) 0;
  position: relative;
  overflow: hidden;
}

.song-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('/assets/images/music-pattern.svg') repeat;
  opacity: 0.1;
  z-index: 1;
}

.song-hero-content {
  position: relative;
  z-index: 2;
}

.song-cover-large {
  width: 200px;
  height: 200px;
  border-radius: var(--radius-xl);
  object-fit: cover;
  box-shadow: var(--shadow-lg);
  margin-bottom: var(--space-lg);
}

.song-info h1 {
  color: white;
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
}

.song-artist-large {
  font-size: 1.25rem;
  opacity: 0.9;
  margin-bottom: var(--space-lg);
}

.song-meta-large {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(255, 255, 255, 0.1);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}

.audio-player {
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

.custom-audio-player {
  width: 100%;
}

.custom-audio-player audio {
  width: 100%;
  height: 50px;
  border-radius: var(--radius-lg);
}

.download-section {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  text-align: center;
  margin: var(--space-xl) 0;
  border: 1px solid var(--border-color);
}

.download-btn-large {
  background: var(--gradient-primary);
  color: white;
  padding: var(--space-md) var(--space-2xl);
  border: none;
  border-radius: var(--radius-lg);
  font-size: 1.125rem;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  transition: all var(--transition-normal);
}

.download-btn-large:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  color: white;
}

.related-songs {
  margin: var(--space-2xl) 0;
}

/* ===== CATEGORY PAGE STYLES ===== */
.category-header {
  background: var(--bg-secondary);
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--border-color);
}

.category-info {
  text-align: center;
}

.category-title {
  font-size: 2.5rem;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.category-description {
  color: var(--text-secondary);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

.filters-section {
  background: var(--bg-primary);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 70px;
  z-index: 100;
}

.filters-container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.filter-select {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
}

/* ===== SEARCH PAGE STYLES ===== */
.search-header {
  background: var(--bg-secondary);
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--border-color);
}

.search-results-info {
  margin-bottom: var(--space-lg);
  color: var(--text-secondary);
}

.no-results {
  text-align: center;
  padding: var(--space-2xl);
}

.no-results-icon {
  font-size: 4rem;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
}

/* ===== LOADING ANIMATIONS ===== */
.skeleton {
  background: linear-gradient(90deg, 
    var(--bg-secondary) 25%, 
    var(--bg-tertiary) 50%, 
    var(--bg-secondary) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-card {
  height: 400px;
  border-radius: var(--radius-xl);
}

.skeleton-text {
  height: 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
}

.skeleton-title {
  height: 1.5rem;
  width: 80%;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
}

/* ===== ERROR STATES ===== */
.error-message {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: rgb(239, 68, 68);
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  margin: var(--space-md) 0;
}

.success-message {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: rgb(16, 185, 129);
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  margin: var(--space-md) 0;
}

/* ===== MODAL STYLES ===== */
.modal-content {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.modal-header {
  border-bottom: 1px solid var(--border-color);
}

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

.btn-close {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  width: 32px;
  height: 32px;
}

/* ===== PERFORMANCE OPTIMIZATIONS ===== */
.song-card-image img {
  will-change: transform;
}

.play-button {
  will-change: transform;
}

.btn-download:hover {
  will-change: transform;
}

/* ===== ACCESSIBILITY ENHANCEMENTS ===== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !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;
}

/* ===== MAINTENANCE MODE ===== */
.maintenance-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--gradient-primary);
  color: white;
}

.maintenance-content {
  max-width: 500px;
  padding: var(--space-xl);
}

.maintenance-icon {
  font-size: 4rem;
  margin-bottom: var(--space-lg);
}

.maintenance-title {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.maintenance-message {
  font-size: 1.125rem;
  opacity: 0.9;
}
/* Enhanced Styling for Your Existing Breadcrumbs */
nav[aria-label="breadcrumb"] {
    background: #ffffff;
    border-bottom: 1px solid #e5e7eb;
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    margin-bottom: 0;
}

.breadcrumb {
    background: transparent;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    font-size: 0.875rem;
    list-style: none;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "/";
    color: #9ca3af;
    margin: 0 0.5rem;
    font-size: 0.75rem;
}

.breadcrumb-item a {
    color: #2563eb;
    text-decoration: none;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.breadcrumb-item a:hover {
    color: #1e40af;
    background: #eff6ff;
    text-decoration: none;
}

.breadcrumb-item.active {
    color: #6b7280;
    font-weight: 500;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Dark Mode Support */
[data-theme="dark"] nav[aria-label="breadcrumb"] {
    background: #1f2937;
    border-bottom: 1px solid #374151;
}

[data-theme="dark"] .breadcrumb-item + .breadcrumb-item::before {
    color: #6b7280;
}

[data-theme="dark"] .breadcrumb-item a {
    color: #60a5fa;
}

[data-theme="dark"] .breadcrumb-item a:hover {
    color: #93c5fd;
    background: #1e3a8a;
}

[data-theme="dark"] .breadcrumb-item.active {
    color: #d1d5db;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .breadcrumb {
        font-size: 0.8rem;
    }
    
    .breadcrumb-item.active {
        max-width: 200px;
    }
    
    .breadcrumb-item a {
        padding: 0.125rem 0.375rem;
    }
}

@media (max-width: 480px) {
    nav[aria-label="breadcrumb"] {
        padding: 0.5rem 0;
    }
    
    .breadcrumb {
        font-size: 0.75rem;
    }
    
    .breadcrumb-item.active {
        max-width: 150px;
    }
}