/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* CSS Variables */
:root {
    --primary-color: #1DB954;
    --primary-hover: #1ED760;
    --secondary-color: #191414;
    --background-color: #121212;
    --surface-color: #181818;
    --highlight-color: #282828;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #6a6a6a;
    --accent-color: #1ed760;
    --error-color: #f44336;
    --warning-color: #ff9800;
    --success-color: #4caf50;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1DB954 0%, #1ED760 100%);
    --gradient-surface: linear-gradient(180deg, rgba(24,24,24,0) 0%, rgba(24,24,24,1) 100%);
    --gradient-hover: linear-gradient(180deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);

    /* Shadows */
    --shadow-small: 0 2px 4px rgba(0,0,0,0.3);
    --shadow-medium: 0 4px 8px rgba(0,0,0,0.4);
    --shadow-large: 0 8px 16px rgba(0,0,0,0.5);

    /* Transitions */
    --transition-fast: all 0.15s ease;
    --transition-normal: all 0.3s ease;
    --transition-slow: all 0.5s ease;

    /* Border radius */
    --radius-small: 4px;
    --radius-medium: 8px;
    --radius-large: 12px;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Typography */
    --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Dark theme by default */
body {
    font-family: var(--font-secondary);
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Scrollbar Styles */
::-webkit-scrollbar {
    width: 12px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--highlight-color);
    border-radius: 6px;
    border: 3px solid var(--background-color);
}

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

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
    color: var(--text-primary);
}

.music-loader {
    margin-bottom: var(--spacing-lg);
    position: relative;
    height: 80px;
}

.sound-bars {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    height: 60px;
    gap: 4px;
    margin-bottom: var(--spacing-md);
}

.sound-bars .bar {
    width: 4px;
    background: var(--primary-color);
    border-radius: 2px;
    animation: soundWave 0.8s ease-in-out infinite alternate;
}

.sound-bars .bar:nth-child(1) { animation-delay: 0s; height: 20px; }
.sound-bars .bar:nth-child(2) { animation-delay: 0.1s; height: 30px; }
.sound-bars .bar:nth-child(3) { animation-delay: 0.2s; height: 40px; }
.sound-bars .bar:nth-child(4) { animation-delay: 0.3s; height: 30px; }
.sound-bars .bar:nth-child(5) { animation-delay: 0.4s; height: 20px; }

@keyframes soundWave {
    0% { transform: scaleY(0.6); opacity: 0.8; }
    100% { transform: scaleY(1.2); opacity: 1; }
}

.music-notes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.music-notes .note-1,
.music-notes .note-2,
.music-notes .note-3 {
    position: absolute;
    color: var(--primary-color);
    font-size: 20px;
    opacity: 0.6;
    animation: floatUp 3s ease-in-out infinite;
}

.music-notes .note-1 { left: 20%; animation-delay: 0s; }
.music-notes .note-2 { left: 50%; animation-delay: 1s; }
.music-notes .note-3 { left: 80%; animation-delay: 2s; }

@keyframes floatUp {
    0% { transform: translateY(20px) rotate(0deg); opacity: 0; }
    50% { opacity: 0.8; }
    100% { transform: translateY(-20px) rotate(20deg); opacity: 0; }
}

.loading-content h2 {
    font-family: var(--font-primary);
    font-size: 28px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.loading-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.loading-bar {
    width: 300px;
    height: 4px;
    background: var(--highlight-color);
    border-radius: 2px;
    overflow: hidden;
    margin: 0 auto;
}

.loading-progress {
    height: 100%;
    background: var(--primary-color);
    border-radius: 2px;
    width: 0%;
    transition: width 0.3s ease;
}

/* App Container */
.app-container {
    display: flex;
    min-height: 100vh;
    padding-bottom: 90px; /* Space for player bar */
}

/* Sidebar */
.sidebar {
    width: 240px;
    background-color: var(--secondary-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.sidebar.collapsed {
    transform: translateX(-240px);
}

.sidebar-header {
    padding: var(--spacing-lg) var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--highlight-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 20px;
    font-weight: 700;
    text-decoration: none;
}

.logo i {
    color: var(--primary-color);
    font-size: 24px;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 18px;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
}

.nav-section {
    margin-bottom: var(--spacing-lg);
}

.nav-section h3 {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.nav-section ul {
    list-style: none;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-small);
    transition: var(--transition-fast);
    margin-bottom: 2px;
}

.nav-item:hover {
    color: var(--text-primary);
    background-color: var(--highlight-color);
}

.nav-item.active {
    color: var(--text-primary);
    background-color: var(--highlight-color);
}

.nav-item i {
    width: 20px;
    text-align: center;
    font-size: 18px;
}

.nav-item span {
    font-size: 14px;
    font-weight: 500;
}

.create-playlist {
    border: 2px solid var(--text-muted);
    opacity: 0.8;
}

.create-playlist:hover {
    opacity: 1;
    border-color: var(--text-primary);
}

.playlist-list {
    max-height: 200px;
    overflow-y: auto;
}

.sidebar-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--highlight-color);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: var(--highlight-color);
    border-radius: var(--radius-medium);
    cursor: pointer;
    transition: var(--transition-fast);
}

.user-profile:hover {
    background-color: var(--text-muted);
}

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

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

.username {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-status {
    display: block;
    font-size: 11px;
    color: var(--text-secondary);
}

.upgrade-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 16px;
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-small);
    transition: var(--transition-fast);
}

.upgrade-btn:hover {
    color: var(--primary-color);
    background-color: rgba(29, 185, 84, 0.1);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 240px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: var(--background-color);
}

.sidebar.collapsed + .main-content {
    margin-left: 0;
}

/* Top Bar */
.top-bar {
    background-color: var(--secondary-color);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--highlight-color);
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 18px;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

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

.search-container {
    flex: 1;
    max-width: 400px;
}

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

.search-box i {
    position: absolute;
    left: var(--spacing-md);
    color: var(--text-muted);
    font-size: 14px;
}

.search-box input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) 40px;
    background-color: var(--highlight-color);
    border: none;
    border-radius: 20px;
    color: var(--text-primary);
    font-size: 14px;
    transition: var(--transition-fast);
}

.search-box input:focus {
    outline: none;
    background-color: var(--text-muted);
    padding-left: var(--spacing-md);
}

.search-box input:focus + i {
    opacity: 0;
}

.search-box input:not(:placeholder-shown) + ~ .clear-search {
    display: block;
}

.clear-search {
    position: absolute;
    right: var(--spacing-md);
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 12px;
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: 50%;
    transition: var(--transition-fast);
}

.clear-search:hover {
    background-color: var(--background-color);
    color: var(--text-primary);
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn {
    background-color: var(--primary-color);
    color: var(--text-primary);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn:hover {
    background-color: var(--primary-hover);
    transform: scale(1.05);
}

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

.btn-secondary:hover {
    background-color: var(--text-muted);
}

.btn-icon {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 18px;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

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

.notification-btn {
    position: relative;
}

.notification-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    background-color: var(--error-color);
    color: white;
    font-size: 10px;
    font-weight: 600;
    padding: 2px 4px;
    border-radius: 10px;
    min-width: 16px;
    text-align: center;
}

/* Content Area */
.content-area {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

.page {
    display: none;
}

.page.active {
    display: block;
}

/* Hero Section */
.hero {
    position: relative;
    height: 400px;
    margin: -24px -24px 40px -24px;
    overflow: hidden;
}

.hero-content {
    position: relative;
    height: 100%;
    display: flex;
    align-items: flex-end;
    padding: var(--spacing-xl);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
}

.gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-surface);
}

.hero-text {
    color: var(--text-primary);
    z-index: 1;
}

.greeting {
    font-size: 14px;
    font-weight: 600;
    opacity: 0.9;
    margin-bottom: var(--spacing-xs);
}

.hero-text h1 {
    font-family: var(--font-primary);
    font-size: 48px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    line-height: 1.1;
}

.hero-text p {
    font-size: 16px;
    opacity: 0.8;
    max-width: 600px;
}

/* Content Sections */
.content-section {
    margin-bottom: var(--spacing-xl);
}

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

.section-header h2 {
    font-family: var(--font-primary);
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.see-all-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-small);
    transition: var(--transition-fast);
}

.see-all-btn:hover {
    color: var(--text-primary);
    background-color: var(--highlight-color);
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--spacing-md);
}

.content-card {
    background-color: var(--highlight-color);
    border-radius: var(--radius-medium);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.content-card:hover {
    background-color: var(--text-muted);
}

.content-card:hover .play-overlay {
    opacity: 1;
    transform: translateY(0);
}

.content-card.large-card {
    grid-column: span 2;
    padding: var(--spacing-lg);
}

.card-image {
    position: relative;
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-small);
    overflow: hidden;
}

.card-image img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: var(--radius-small);
}

.play-overlay {
    position: absolute;
    bottom: 8px;
    right: 8px;
    opacity: 0;
    transform: translateY(8px);
    transition: var(--transition-fast);
}

.play-btn {
    width: 48px;
    height: 48px;
    background-color: var(--primary-color);
    border: none;
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-large);
    transition: var(--transition-fast);
}

.play-btn:hover {
    background-color: var(--primary-hover);
    transform: scale(1.05);
}

.card-info h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.card-info p {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.playlist-stats {
    font-size: 11px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* Artists Grid */
.artists-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.artist-card {
    background-color: var(--highlight-color);
    border-radius: var(--radius-medium);
    padding: var(--spacing-md);
    text-align: center;
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
}

.artist-card:hover {
    background-color: var(--text-muted);
}

.artist-card:hover .follow-artist-btn {
    opacity: 1;
}

.artist-image {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.artist-image img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 50%;
    margin-bottom: var(--spacing-md);
}

.follow-artist-btn {
    position: absolute;
    bottom: var(--spacing-md);
    right: 50%;
    transform: translateX(50%);
    width: 32px;
    height: 32px;
    background-color: var(--primary-color);
    border: none;
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 12px;
    cursor: pointer;
    opacity: 0;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.artist-card h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.artist-card p {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Search Categories */
.search-page-content {
    padding: var(--spacing-lg) 0;
}

.search-categories h3 {
    font-family: var(--font-primary);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.category-card {
    aspect-ratio: 1;
    border-radius: var(--radius-large);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.category-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-large);
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.2);
    transition: var(--transition-fast);
}

.category-card:hover::before {
    background: rgba(0, 0, 0, 0.3);
}

/* Library */
.library-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.library-tabs {
    display: flex;
    gap: var(--spacing-md);
}

.tab-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    padding: var(--spacing-sm) 0;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-fast);
}

.tab-btn.active {
    color: var(--text-primary);
    border-bottom-color: var(--primary-color);
}

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

.sort-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 18px;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-small);
    transition: var(--transition-fast);
}

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

.library-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.library-item {
    background-color: var(--highlight-color);
    border-radius: var(--radius-medium);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.library-item:hover {
    background-color: var(--text-muted);
}

.library-item:hover .play-overlay {
    opacity: 1;
    transform: translateY(0);
}

.item-image {
    position: relative;
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-small);
    overflow: hidden;
}

.item-image img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: var(--radius-small);
}

/* Player Bar */
.player-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 90px;
    background-color: var(--secondary-color);
    border-top: 1px solid var(--highlight-color);
    z-index: 1000;
    backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-lg);
}

.player-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: var(--spacing-lg);
}

.track-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    min-width: 180px;
    flex: 0.3;
}

.track-image img {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-small);
    object-fit: cover;
}

.track-details h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.track-details p {
    font-size: 11px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.like-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 18px;
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: var(--transition-fast);
}

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

.like-btn.active {
    color: var(--primary-color);
}

.player-controls {
    flex: 0.4;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.control-buttons {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.control-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 16px;
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: var(--transition-fast);
}

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

.control-btn.active {
    color: var(--primary-color);
}

.play-pause-btn {
    width: 32px;
    height: 32px;
    background-color: var(--text-primary);
    border: none;
    border-radius: 50%;
    color: var(--background-color);
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

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

.progress-bar {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;
}

.time {
    font-size: 11px;
    color: var(--text-secondary);
    min-width: 40px;
    text-align: center;
}

.progress-container {
    flex: 1;
    height: 4px;
    background-color: var(--text-muted);
    border-radius: 2px;
    position: relative;
    cursor: pointer;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--text-primary);
    border-radius: 2px;
    width: 35%;
    position: absolute;
    left: 0;
    top: 0;
    transition: width 0.1s linear;
}

.progress-slider {
    position: absolute;
    top: -6px;
    left: 0;
    width: 100%;
    height: 16px;
    background: none;
    border: none;
    cursor: pointer;
    opacity: 0;
    outline: none;
}

.player-extras {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 0.3;
    justify-content: flex-end;
}

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

.volume-slider {
    width: 100px;
    height: 4px;
    background-color: var(--text-muted);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
    -webkit-appearance: none;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background-color: var(--text-primary);
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s;
}

.volume-control:hover .volume-slider::-webkit-slider-thumb {
    opacity: 1;
}

.extra-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Audio Visualizer */
.audio-visualizer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 30px;
    pointer-events: none;
    z-index: -1;
}

#visualizerCanvas {
    width: 100%;
    height: 100%;
    opacity: 0.3;
}

/* Play Queue */
.play-queue {
    position: fixed;
    top: 80px;
    right: -400px;
    width: 400px;
    height: calc(100vh - 170px);
    background-color: var(--secondary-color);
    border-left: 1px solid var(--highlight-color);
    transition: right 0.3s ease;
    z-index: 999;
    display: flex;
    flex-direction: column;
}

.play-queue.active {
    right: 0;
}

.queue-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--highlight-color);
}

.queue-header h3 {
    font-family: var(--font-primary);
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.close-queue {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 16px;
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-small);
    transition: var(--transition-fast);
}

.close-queue:hover {
    color: var(--text-primary);
    background-color: var(--highlight-color);
}

.queue-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

.queue-section {
    margin-bottom: var(--spacing-lg);
}

.queue-section h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.queue-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--radius-small);
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
}

.queue-item:hover {
    background-color: var(--highlight-color);
}

.queue-item.current {
    background-color: var(--highlight-color);
}

.queue-item.current::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 16px;
    background-color: var(--primary-color);
    border-radius: 0 2px 2px 0;
}

.queue-item-image img {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-small);
    object-fit: cover;
}

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

.queue-item-info h5 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.queue-item-info p {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.queue-item-duration {
    font-size: 12px;
    color: var(--text-secondary);
}

.remove-from-queue {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 12px;
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-small);
    transition: var(--transition-fast);
    opacity: 0;
}

.queue-item:hover .remove-from-queue {
    opacity: 1;
}

.remove-from-queue:hover {
    color: var(--text-primary);
    background-color: var(--highlight-color);
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--secondary-color);
    border-radius: var(--radius-large);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--highlight-color);
}

.modal-header h2 {
    font-family: var(--font-primary);
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.close-modal {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 18px;
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-small);
    transition: var(--transition-fast);
}

.close-modal:hover {
    color: var(--text-primary);
    background-color: var(--highlight-color);
}

.modal-body {
    padding: var(--spacing-lg);
}

/* Premium Modal */
.premium-features {
    margin-bottom: var(--spacing-xl);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.feature-item i {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: 18px;
}

.feature-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.feature-item p {
    font-size: 14px;
    color: var(--text-secondary);
}

.pricing-plans {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-md);
}

.plan-card {
    background-color: var(--highlight-color);
    border-radius: var(--radius-medium);
    padding: var(--spacing-lg);
    text-align: center;
    position: relative;
    border: 2px solid transparent;
    transition: var(--transition-fast);
}

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

.plan-card.featured {
    border-color: var(--primary-color);
}

.plan-card h3 {
    font-family: var(--font-primary);
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.price {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.price span {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 400;
}

.plan-card ul {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.plan-card ul li {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.popular-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: var(--text-primary);
    font-size: 11px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-lg);
    background-color: var(--secondary-color);
    border: 1px solid var(--highlight-color);
    border-radius: var(--radius-medium);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    z-index: 10001;
    transform: translateX(400px);
    transition: transform 0.3s ease;
    min-width: 300px;
}

.toast.show {
    transform: translateX(0);
}

.toast i {
    font-size: 18px;
}

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

.toast.error i {
    color: var(--error-color);
}

.toast.warning i {
    color: var(--warning-color);
}

.toast.info i {
    color: var(--primary-color);
}

#toastMessage {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }

    .artists-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }

    .category-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }

    .library-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-240px);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .menu-toggle {
        display: block;
    }

    .top-bar {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .search-container {
        display: none;
    }

    .hero-text h1 {
        font-size: 36px;
    }

    .content-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: var(--spacing-sm);
    }

    .content-card.large-card {
        grid-column: span 1;
    }

    .artists-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }

    .category-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }

    .library-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }

    .player-content {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .track-info,
    .player-extras {
        flex: 1;
        justify-content: center;
    }

    .player-controls {
        flex: none;
        order: -1;
    }

    .progress-bar {
        display: none;
    }

    .play-queue {
        width: 100%;
        right: -100%;
    }

    .pricing-plans {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero {
        height: 300px;
    }

    .hero-text h1 {
        font-size: 28px;
    }

    .content-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }

    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .library-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .artists-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .player-bar {
        height: auto;
        padding: var(--spacing-sm);
    }

    .player-content {
        gap: var(--spacing-xs);
    }

    .volume-control {
        display: none;
    }
}

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

/* Focus styles */
button:focus,
input:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .sidebar,
    .top-bar,
    .player-bar,
    .play-queue,
    .modal,
    .toast {
        display: none !important;
    }

    .main-content {
        margin-left: 0 !important;
    }
}