/* 
           NEURAL GALACTIC UI DESIGN SYSTEM
           -------------------------------
           Theme: Realistic Future Modernism
           Palette: Obsidian Core, Quantum Blue, Hyper Violet
        */
 :root {
     --obsidian-core: #224a5b;
     --obsidian-surface: #10384a;
     --quantum-blue: #0ea5e9;
     --quantum-glow: rgba(14, 165, 233, 0.4);
     --hyper-violet: #8b5cf6;
     --cyber-gold: #f59e0b;
     --text-primary: #f8fafc;
     --text-secondary: #94a3b8;
     --glass-blur: blur(50px);
     --hologram-border: rgba(255, 255, 255, 0.08);
     --warp-transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
 }

 * {
     margin: 0;
     padding: 0;
     box-sizing: border-box;
     -webkit-tap-highlight-color: transparent;
 }

 body {
     background-color: var(--obsidian-core);
     background-image:
         radial-gradient(circle at 20% 30%, rgba(14, 165, 233, 0.05) 0%, transparent 40%),
         radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.05) 0%, transparent 40%);
     color: var(--text-primary);
     font-family: 'Plus Jakarta Sans', sans-serif;
     min-height: 100vh;
     overflow-x: hidden;
     letter-spacing: -0.01em;

     body {
         -webkit-user-select: none;
         /* Chrome, Safari */
         -moz-user-select: none;
         /* Firefox */
         -ms-user-select: none;
         /* IE */
         user-select: none;
         /* Standard */
     }
 }

 h1,
 h2,
 .site-title,
 .section-title {
     font-family: 'Space Grotesk', sans-serif;
     font-weight: 700;
 }

 /* CUSTOM SCROLLBAR – SLEEK NEURAL FILAMENT */
 ::-webkit-scrollbar {
     width: 3px;
 }

 ::-webkit-scrollbar-track {
     background: transparent;
 }

 ::-webkit-scrollbar-thumb {
     background: linear-gradient(var(--quantum-blue), var(--hyper-violet));
     border-radius: 10px;
 }

 /* NAVIGATION HEADER – FLOATING HUB */
 .header {
     padding: 24px 40px;
     background: rgba(2, 4, 8, 0.7);
     backdrop-filter: var(--glass-blur);
     border-bottom: 1px solid var(--hologram-border);
     position: sticky;
     top: 0;
     z-index: 1000;
     display: flex;
     justify-content: space-between;
     align-items: center;
 }

 .site-title {
     font-size: 26px;
     letter-spacing: -1.5px;
     background: linear-gradient(135deg, #fff, var(--quantum-blue));
     -webkit-background-clip: text;
     background-clip: text;
     -webkit-text-fill-color: transparent;
     text-transform: uppercase;
     font-weight: 800;
 }

 .library-title {
     font-size: 10px;
     color: var(--text-secondary);
     font-weight: 800;
     text-transform: uppercase;
     letter-spacing: 4px;
 }

 /* GRID & MAIN INTERFACE */
 .main-content {
     padding: 40px;
     padding-bottom: 220px;
     max-width: 1600px;
     margin: 0 auto;
     animation: neuralEntry 1.2s cubic-bezier(0.16, 1, 0.3, 1);
 }

 @keyframes neuralEntry {
     from {
         opacity: 0;
         filter: blur(10px);
         transform: perspective(1000px) rotateX(2deg) translateY(30px);
     }

     to {
         opacity: 1;
         filter: blur(0);
         transform: perspective(1000px) rotateX(0deg) translateY(0);
     }
 }

 /* WELCOME HUB */
 .welcome-card {
     background: radial-gradient(circle at top left, rgba(14, 165, 233, 0.1), transparent 70%), var(--obsidian-surface);
     border: 1px solid var(--hologram-border);
     border-radius: 40px;
     padding: 80px;
     margin-bottom: 60px;
     position: relative;
     overflow: hidden;
     box-shadow: 0 40px 100px rgba(0, 0, 0, 0.5);
 }

 .welcome-title {
     font-size: 56px;
     margin-bottom: 24px;
     display: flex;
     align-items: center;
     gap: 20px;
     font-family: 'Space Grotesk';
 }

 .welcome-title i {
     color: var(--quantum-blue);
     filter: drop-shadow(0 0 15px var(--quantum-blue));
 }

 .welcome-text {
     font-size: 20px;
     color: var(--text-secondary);
     line-height: 1.8;
     max-width: 800px;
     font-weight: 500;
 }

 /* DYNAMIC MODULES (CARDS) */
 .section-header {
     display: flex;
     justify-content: space-between;
     align-items: center;
     margin-bottom: 40px;
 }

 .section-title {
     font-size: 32px;
     letter-spacing: -1px;
 }

 .section-subtitle {
     font-size: 11px;
     text-transform: uppercase;
     letter-spacing: 3px;
     color: var(--quantum-blue);
     background: rgba(14, 165, 233, 0.1);
     padding: 10px 24px;
     border-radius: 100px;
     border: 1px solid rgba(14, 165, 233, 0.2);
     font-weight: 800;
 }

 .music-grid {
     display: grid;
     grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
     gap: 40px;
 }

 .music-card {
     background: var(--obsidian-surface);
     border: 1px solid var(--hologram-border);
     border-radius: 32px;
     padding: 24px;
     transition: var(--warp-transition);
     cursor: pointer;
     backdrop-filter: blur(10px);
 }

 .music-card:hover {
     transform: translateY(-16px) scale(1.02);
     border-color: var(--quantum-blue);
     box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6), 0 0 20px var(--quantum-glow);
     background: rgba(10, 12, 20, 0.9);
 }

 .album-art {
     width: 100%;
     aspect-ratio: 1/1;
     border-radius: 20px;
     background-size: cover;
     background-position: center;
     margin-bottom: 20px;
     transition: var(--warp-transition);
 }

 .music-card:hover .album-art {
     transform: scale(1.05);
 }

 .music-info {
     text-align: left;
 }

 .music-title {
     font-size: 18px;
     font-weight: 800;
     color: var(--text-primary);
     margin-bottom: 6px;
 }

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

 /* PLAYLIST HUB ARCHITECTURE */
 .playlist-categories {
     display: flex;
     gap: 20px;
     justify-content: center;
     margin-bottom: 60px;
     background: rgba(255, 255, 255, 0.03);
     padding: 8px;
     border-radius: 100px;
     /* make container responsive and scrollable/wrap when needed */
     width: 100%;
     max-width: 100%;
     flex-wrap: wrap;
     margin: 0 auto;
     border: 1px solid var(--hologram-border);
     overflow-x: auto;
     -webkit-overflow-scrolling: touch;
 }
 
 .playlist-categories .category-tab {
     flex: 0 1 auto; /* allow tabs to shrink and wrap on smaller screens */
 }

/* custom playlist creation button matching category tabs */
.create-playlist-btn {
    padding: 14px 36px;
    font-weight: 800;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 2px;
    flex: 0 0 auto;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
}
.create-playlist-btn:hover {
    color: var(--quantum-blue);
}

 .category-tab {
     padding: 14px 36px;
     font-weight: 800;
     font-size: 11px;
     text-transform: uppercase;
     letter-spacing: 2px;
     color: var(--text-secondary);
     cursor: pointer;
     border-radius: 100px;
     transition: var(--warp-transition);
     white-space: normal;
     word-break: break-word;
 }

 .category-tab.active {
     background: var(--quantum-blue);
     color: #000;
     box-shadow: 0 10px 25px var(--quantum-glow);
 }

 .playlist-grid {
     display: grid;
     grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
     gap: 40px;
 }

 .playlist-card {
     transition: var(--warp-transition);
 }

 .playlist-cover {
     width: 100%;
     aspect-ratio: 1/1;
     border-radius: 40px;
     background-size: cover;
     background-position: center;
     margin-bottom: 24px;
     border: 2px solid transparent;
     box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
     transition: var(--warp-transition);
 }

 .playlist-card:hover .playlist-cover {
     transform: scale(1.05) rotate(-2deg);
     border-color: var(--quantum-blue);
     box-shadow: 0 30px 80px rgba(14, 165, 233, 0.2);
 }

 .playlist-name {
     font-size: 22px;
     font-weight: 800;
     text-align: center;
 }

 .playlist-song-count {
     font-size: 14px;
     color: var(--text-secondary);
     text-align: center;
     margin-top: 6px;
     font-weight: 600;
     text-transform: uppercase;
     letter-spacing: 1px;
 }

 /* SEARCH & INDEX MODULES */
 .search-container {
     background: var(--obsidian-surface);
     border: 1px solid var(--hologram-border);
     border-radius: 32px;
     padding: 16px 40px;
     margin-bottom: 48px;
     display: flex;
     align-items: center;
     transition: var(--warp-transition);
 }

 /* make artist page search a bit narrower and centered */
 #artists-playlists .search-container {
     max-width: 480px;
     margin: 24px auto 32px; /* add top margin and reduce bottom */
     padding: 12px 24px;     /* smaller inner padding for less bulk */
 }

 @media (max-width: 900px) {
     /* reduce padding for all searches on smaller screens */
     .search-container {
         padding: 12px 32px;
     }
 }

 @media (max-width: 600px) {
     #artists-playlists .search-container {
         padding: 12px 24px;
         margin-bottom: 32px;
     }
     .search-box {
         font-size: 18px;
     }
 }


 .search-container:focus-within {
     border-color: var(--quantum-blue);
     box-shadow: 0 0 30px var(--quantum-glow);
 }

 .search-box {
     flex: 1;
     background: transparent;
     border: none;
     color: #fff;
     padding: 12px 0;
     font-size: 20px;
     outline: none;
     font-weight: 600;
 }

 .playlist-aura-bg {
     position: absolute;
     top: 0;
     left: 0;
     width: 100%;
     height: 100%;
     background-size: cover;
     background-position: center;
     filter: blur(80px) brightness(0.4);
     z-index: 0;
     opacity: 0.6;
     pointer-events: none;
 }

 .playlist-detail {
     position: relative;
     overflow-x: hidden;
 }

 .playlist-detail .main-content {
     position: relative;
     z-index: 1;
 }

 .music-list {
     background: var(--obsidian-surface);
     border: 1px solid var(--hologram-border);
     border-radius: 40px;
     overflow: hidden;
     box-shadow: 0 40px 80px rgba(0, 0, 0, 0.4);
 }

 .list-header {
     padding: 24px 40px;
     background: rgba(255, 255, 255, 0.02);
     font-weight: 900;
     font-size: 11px;
     text-transform: uppercase;
     letter-spacing: 3px;
     color: var(--text-secondary);
     border-bottom: 1px solid var(--hologram-border);
     display: flex;
     justify-content: space-between;
 }

 .list-item {
     padding: 24px 40px;
     display: flex;
     align-items: center;
     justify-content: space-between;
     border-bottom: 1px solid var(--hologram-border);
     transition: var(--warp-transition);
     cursor: pointer;
 }

 .list-item:hover {
     background: rgba(14, 165, 233, 0.06);
     transform: translateX(10px);
 }

 .list-item:hover {
     background: rgba(14, 165, 233, 0.06);
     transform: translateX(10px);
 }

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

 .list-item-art {
     width: 64px;
     height: 64px;
     border-radius: 16px;
     background-size: cover;
     margin-right: 28px;
     border: 1px solid var(--hologram-border);
     flex-shrink: 0;
 }

 .list-item-details {
     display: flex;
     flex-direction: column;
 }

 .list-item-title {
     font-size: 18px;
     font-weight: 800;
     color: var(--text-primary);
     margin-bottom: 4px;
 }

 .list-item-artist {
     font-size: 14px;
     color: var(--text-secondary);
     font-weight: 600;
 }

 .song-duration {
     font-size: 14px;
     color: var(--text-secondary);
     font-weight: 800;
     font-family: 'Space Grotesk';
 }

 /* COMMAND CONSOLE PROFILE */
 .profile-card {
     background: var(--obsidian-surface);
     border: 1px solid var(--hologram-border);
     border-radius: 48px;
     padding: 80px;
     display: grid;
     grid-template-columns: 240px 1fr;
     gap: 80px;
     align-items: center;
     position: relative;
 }

 .profile-avatar {
     width: 240px;
     height: 240px;
     border-radius: 64px;
     background-size: cover;
     background-position: center;
     border: 3px solid var(--quantum-blue);
     box-shadow: 0 0 50px var(--quantum-glow);
     position: relative;
     animation: avatarFloat 4s ease-in-out infinite;
 }

 @keyframes avatarFloat {

     0%,
     100% {
         transform: translateY(0);
     }

     50% {
         transform: translateY(-15px);
     }
 }

 .profile-avatar::after {
     content: 'TERMINAL LINK ACTIVE';
     position: absolute;
     bottom: -20px;
     left: 50%;
     transform: translateX(-50%);
     white-space: nowrap;
     font-size: 10px;
     font-weight: 800;
     color: var(--quantum-blue);
     letter-spacing: 2px;
 }

 .profile-name {
     font-size: 72px;
     letter-spacing: -3px;
     font-family: 'Space Grotesk';
 }

 .profile-tagline {
     font-size: 22px;
     color: var(--quantum-blue);
     background: rgba(14, 165, 233, 0.1);
     padding: 8px 16px;
     border-radius: 12px;
     display: inline-flex;
     align-items: center;
     gap: 12px;
     margin-bottom: 32px;
     font-weight: 700;
 }

 .profile-bio {
     font-size: 22px;
     color: var(--text-secondary);
     line-height: 1.8;
     margin-bottom: 40px;
     font-weight: 500;
 }

 .social-link {
     text-decoration: none;
     color: var(--text-primary);
     background: rgba(255, 255, 255, 0.05);
     border: 1px solid var(--hologram-border);
     padding: 16px 32px;
     border-radius: 20px;
     font-weight: 800;
     transition: var(--warp-transition);
     display: inline-flex;
     align-items: center;
     gap: 14px;
     font-size: 14px;
     text-transform: uppercase;
     letter-spacing: 1px;
 }

 .social-link:hover {
     border-color: var(--quantum-blue);
     background: var(--quantum-blue);
     color: #000;
     transform: translateY(-8px);
 }

 /* NEURAL PLAYER CAPSULE */
 .music-player {
     position: fixed;
     bottom: 120px;
     left: 50%;
     transform: translateX(-50%);
     width: calc(100% - 80px);
     max-width: 1100px;
     background: rgba(5, 8, 12, 0.8);
     backdrop-filter: var(--glass-blur);
     border: 1px solid var(--hologram-border);
     border-radius: 32px;
     padding: 20px 40px;
     display: flex;
     align-items: center;
     justify-content: space-between;
     z-index: 2000;
     box-shadow: 0 50px 100px rgba(0, 0, 0, 0.8);
     animation: playerPop 0.8s cubic-bezier(0.16, 1, 0.3, 1);
 }

 @keyframes playerPop {
     from {
         transform: translateX(-50%) translateY(40px) scale(0.9);
         opacity: 0;
     }

     to {
         transform: translateX(-50%) translateY(0) scale(1);
         opacity: 1;
     }
 }

 .player-info {
     display: flex;
     align-items: center;
     gap: 24px;
 }

 .player-art {
     width: 64px;
     height: 64px;
     border-radius: 18px;
     border: 1px solid var(--hologram-border);
     box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
 }

 .player-title {
     font-weight: 900;
     font-size: 18px;
     margin-bottom: 4px;
     font-family: 'Space Grotesk';
 }

 .player-artist {
     font-size: 14px;
     color: var(--text-secondary);
     font-weight: 700;
 }

 .control-btn {
     width: 64px;
     height: 64px;
     border-radius: 22px;
     border: none;
     background: var(--quantum-blue);
     color: #000;
     font-size: 24px;
     cursor: pointer;
     transition: var(--warp-transition);
     display: flex;
     align-items: center;
     justify-content: center;
 }

 .control-btn:hover {
     background: #fff;
     transform: scale(1.1) rotate(10deg);
     box-shadow: 0 0 30px #fff;
 }

 /* FULLSCREEN QUANTUM MODULE */
 .fullscreen-player {
     position: fixed;
     inset: 0;
     background: radial-gradient(circle at center, var(--obsidian-surface) 0%, var(--obsidian-core) 100%);
     z-index: 3000;
     display: none;
     flex-direction: column;
     padding: 20px 10px; /* shrink padding to minimal */
     overflow-y: auto; /* allow scrolling to reach controls */
     box-sizing: border-box;
     justify-content: flex-start; /* start from top now that scrolling exists */
     max-height: 100vh;
 }

 .fullscreen-player.active {
     display: flex;
 }

 .player-album-art {
     width: 100%;
     max-width: 200px; /* further shrink image */
     max-height: 30vh;
     aspect-ratio: 1/1;
     margin: 0 auto 24px; /* less bottom space */
     border-radius: 64px;
     background-size: cover;
     background-position: center;
     box-shadow: 0 60px 120px rgba(0, 0, 0, 0.9), 0 0 40px var(--quantum-glow);
     border: 1px solid var(--quantum-blue);
     position: relative;
 }

 .player-song-title {
     font-size: 32px; /* much smaller now */
     font-weight: 800;
     text-align: center;
     margin-bottom: 8px;
     letter-spacing: -2px;
     max-height: 8vh; /* keep titles from expanding container */
     overflow-wrap: break-word;
 }

 .player-song-artist {
     font-size: 18px;
     color: var(--text-secondary);
     text-align: center;
     margin-bottom: 40px;
     font-weight: 700;
     text-transform: uppercase;
     letter-spacing: 2px;
 }

 .progress-bar-container {
     width: 100%;
     height: 6px;
     background: rgba(255, 255, 255, 0.05);
     border-radius: 100px;
     position: relative;
     cursor: pointer;
     margin-bottom: 24px;
 }

 .progress-fill {
     height: 100%;
     background: linear-gradient(90deg, var(--quantum-blue), var(--hyper-violet));
     border-radius: 100px;
     width: 0%;
     position: relative;
     box-shadow: 0 0 25px var(--quantum-blue);
 }

 .progress-thumb {
     width: 18px;
     height: 18px;
     background: #fff;
     border-radius: 50%;
     position: absolute;
     top: 50%;
     transform: translate(-50%, -50%);
     box-shadow: 0 0 20px #fff;
     z-index: 10;
 }

 /* VOLUME HUB STYLES */
 .volume-container {
     margin-top: 24px; /* bring control closer to main buttons */
     display: flex;
     align-items: center;
     gap: 16px;
     width: 100%;
     max-width: 300px;
     margin-left: auto;
     margin-right: auto;
     background: rgba(255, 255, 255, 0.03);
     padding: 8px 16px; /* less padding so it doesn't dominate */
     border-radius: 100px;
     border: 1px solid var(--hologram-border);
 }

 .volume-bar-container {
     flex: 1;
     height: 4px;
     background: rgba(255, 255, 255, 0.05);
     border-radius: 100px;
     position: relative;
     cursor: pointer;
 }

 .volume-fill {
     height: 100%;
     width: 100%;
     background: var(--quantum-blue);
     border-radius: 100px;
     position: relative;
 }

 .volume-thumb {
     width: 14px;
     height: 14px;
     background: #fff;
     border-radius: 50%;
     position: absolute;
     top: 50%;
     right: -7px;
     transform: translateY(-50%);
     box-shadow: 0 0 10px #fff;
 }

 .player-main-controls {
     display: flex;
     justify-content: center;
     align-items: center;
     gap: 20px; /* even tighter spacing */
     margin-top: 20px; /* lest vertical gap */
 }

 .main-control-btn {
     font-size: 40px;
     color: #fff;
     background: none;
     border: none;
     cursor: pointer;
     transition: var(--warp-transition);
     opacity: 0.8;
 }

 .main-control-btn:hover {
     opacity: 1;
     transform: scale(1.2);
 }

 .play-pause-btn {
     width: 80px; /* smaller button globally */
     height: 80px;
     background: #fff;
     color: #000;
     border-radius: 40px;
     display: flex;
     align-items: center;
     justify-content: center;
     font-size: 48px;
     box-shadow: 0 15px 40px rgba(255, 255, 255, 0.2);
 }

 /* BOTTOM NEURAL FILAMENT NAV */
 .bottom-nav {
     position: fixed;
     bottom: 0;
     left: 0;
     right: 0;
     height: 100px;
     background: rgba(2, 4, 8, 0.85);
     backdrop-filter: var(--glass-blur);
     border-top: 1px solid var(--hologram-border);
     display: flex;
     justify-content: center;
     gap: 80px;
     z-index: 1500;
 }

 .nav-item {
     display: flex;
     flex-direction: column;
     align-items: center;
     justify-content: center;
     text-decoration: none;
     color: var(--text-secondary);
     font-weight: 900;
     font-size: 11px;
     text-transform: uppercase;
     letter-spacing: 3px;
     transition: var(--warp-transition);
     gap: 8px;
 }

 .nav-item.active {
     color: var(--quantum-blue);
     transform: translateY(-8px);
 }

 .nav-icon {
     font-size: 26px;
 }

 /* PAGE MANAGEMENT */
 .page-container {
     display: none;
 }

 .page-container.active {
     display: block;
 }

 .playlist-category {
     display: none;
 }

 .playlist-category.active {
     display: block;
 }

 /* NEURAL FLUID RESPONSIVENESS (ALL DEVICES) */
 @media (max-width: 1200px) {
     .main-content {
         padding: 32px;
     }

     .welcome-card,
     .profile-card {
         padding: 60px;
     }

     .welcome-title {
         font-size: 48px;
     }

     .profile-name {
         font-size: 60px;
     }
 }

 @media (max-width: 900px) {
     .header {
         padding: 20px 24px;
     }

     .main-content {
         padding: 24px;
         padding-bottom: 200px;
     }

     .welcome-card {
         padding: 48px 32px;
         border-radius: 32px;
     }

     .welcome-title {
         font-size: 36px;
         gap: 16px;
     }

     .welcome-text {
         font-size: 18px;
     }

     .music-grid {
         grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
         gap: 24px;
     }

     .music-card {
         padding: 16px;
         border-radius: 24px;
     }

     .music-title {
         font-size: 16px;
     }

     .playlist-grid {
         grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
         gap: 24px;
     }

     .playlist-cover {
         border-radius: 32px;
     }

     .playlist-name {
         font-size: 18px;
     }

     .profile-card {
         grid-template-columns: 1fr;
         text-align: center;
         padding: 40px 24px;
         gap: 40px;
     }

     .profile-avatar {
         width: 180px;
         height: 180px;
         margin: 0 auto;
         border-radius: 48px;
     }

     .profile-name {
         font-size: 48px;
     }

     .profile-bio {
         font-size: 18px;
     }

     .bottom-nav {
         gap: 40px;
         height: 90px;
     }

     .nav-item {
         font-size: 10px;
         gap: 4px;
     }

     .nav-icon {
         font-size: 22px;
     }

     .music-player {
         width: calc(100% - 32px);
         padding: 16px 20px;
         bottom: 110px;
         border-radius: 24px;
     }

     .player-art {
         width: 50px;
         height: 50px;
         border-radius: 12px;
     }

     .player-title {
         font-size: 14px;
     }

     .player-artist {
         font-size: 12px;
     }

     .control-btn {
         width: 50px;
         height: 50px;
         border-radius: 16px;
         font-size: 18px;
     }
 }

 @media (max-width: 600px) {
     .site-title {
         font-size: 20px;
     }
     /* make fullscreen player padding smaller on phones */
     .fullscreen-player {
         padding: 40px 20px;
         overflow-y: auto;
         justify-content: flex-start;
     }
     /* volume container smaller on phones */
     .volume-container {
         margin-top: 16px;
         gap: 12px;
         padding: 6px 12px;
         max-width: 250px;
     }
     /* tighten up mini player even more */
     .music-player {
         width: calc(100% - 32px);
         padding: 12px 16px;
         bottom: 100px;
     }
     .player-art {
         width: 40px;
         height: 40px;
     }
     .control-btn {
         width: 40px;
         height: 40px;
         font-size: 16px;
     }
     .volume-icon {
         font-size: 16px;
     }
     /* fullscreen adjustments for small phones */
     .player-main-controls {
         gap: 40px;
     }
     .play-pause-btn {
         width: 60px;
         height: 60px;
     }
     .main-control-btn {
         font-size: 24px;
     }
     .player-album-art {
         max-width: 240px;
     }

     .library-title {
         display: none;
     }

     .main-content {
         padding: 16px;
         padding-bottom: 220px;
     }

     .welcome-card {
         padding: 32px 24px;
         margin-bottom: 40px;
         text-align: center;
     }

     .welcome-title {
         font-size: 28px;
         justify-content: center;
     }

     .welcome-text {
         font-size: 16px;
     }

     .section-title {
         font-size: 24px;
     }

     .section-subtitle {
         padding: 8px 16px;
         font-size: 9px;
     }

     .music-grid {
         grid-template-columns: 1fr 1fr;
         gap: 16px;
     }

     .music-card {
         padding: 12px;
         border-radius: 20px;
     }

     .album-art {
         border-radius: 16px;
         margin-bottom: 12px;
     }

     .music-title {
         font-size: 14px;
         white-space: nowrap;
         overflow: hidden;
         text-overflow: ellipsis;
     }

     .music-artist {
         font-size: 12px;
     }

     .playlist-categories {
         width: 100%;
         overflow-x: auto;
         justify-content: center;
         padding: 6px;
         gap: 8px;
         flex-wrap: wrap;
     }

     .category-tab {
         padding: 10px 16px;
         white-space: nowrap;
         font-size: 8px;
         flex: 0 1 auto;
         min-width: fit-content;
     }

     .playlist-grid {
         grid-template-columns: 1fr 1fr;
         gap: 16px;
     }

     .playlist-cover {
         border-radius: 24px;
         margin-bottom: 16px;
     }

     .playlist-name {
         font-size: 16px;
     }

     .playlist-detail .playlist-cover {
         width: 220px !important;
         height: 220px !important;
         border-radius: 40px !important;
         margin: 0 auto;
     }

     .playlist-detail h1.playlist-name {
         font-size: 40px !important;
         text-align: center;
     }

     .playlist-detail .playlist-song-count {
         font-size: 16px !important;
         text-align: center;
     }

     .playlist-detail .action-btn.play {
         padding: 16px 32px !important;
         width: 100%;
     }

     .playlist-detail .action-btn {
         flex: 1;
         justify-content: center;
     }

     .list-item {
         padding: 16px;
     }

     .list-item-art {
         width: 48px;
         height: 48px;
         margin-right: 16px;
     }

     .list-item-title {
         font-size: 14px;
     }

     .list-item-artist {
         font-size: 12px;
     }

     .profile-card {
         padding: 32px 20px;
     }
     /* reduce padding of the contact area so it doesn't overflow mobile screens */
     .contact-section {
         padding: 32px !important;
     }

     .profile-name {
         font-size: 36px;
     }

     .profile-bio {
         font-size: 16px;
     }

     .social-link {
         width: 100%;
         justify-content: center;
         padding: 14px;
     }
     /* contact button uses inline style; force sensible mobile padding */
     #contact-btn {
         padding: 16px 32px !important;
         width: 100% !important;
         box-sizing: border-box;
     }

     .fullscreen-player {
         padding: 40px 24px;
     }

     .player-album-art {
         max-width: 280px;
         margin-bottom: 40px;
         border-radius: 40px;
     }

     .player-song-title {
         font-size: 32px;
     }

     .player-song-artist {
         font-size: 16px;
         margin-bottom: 40px;
     }

     .player-main-controls {
         gap: 40px;
         margin-top: 40px;
     }

     .play-pause-btn {
         width: 80px;
         height: 80px;
         border-radius: 24px;
         font-size: 32px;
     }

     .main-control-btn {
         font-size: 28px;
     }

     .bottom-nav {
         gap: 0;
         justify-content: space-around;
         padding: 0 10px;
     }

     .nav-item {
         width: 25%;
         letter-spacing: 1px;
     }
 }

 @media (max-width: 480px) {
     .playlist-categories {
         gap: 6px;
         padding: 4px;
     }

     .category-tab {
         padding: 8px 12px;
         font-size: 7px;
         border-radius: 80px;
     }

     .category-tab.active {
         box-shadow: 0 5px 15px var(--quantum-glow);
     }
 }

 @media (max-width: 380px) {

     .music-grid,
     .playlist-grid {
         grid-template-columns: 1fr;
     }

     .welcome-title {
         font-size: 24px;
     }

     .playlist-categories {
         gap: 4px;
         padding: 2px;
     }

     .category-tab {
         padding: 6px 10px;
         font-size: 6.5px;
         letter-spacing: 1px;
     }
 }