:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:dark;color:#ffffffde;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}.app{max-width:1200px;margin:0 auto;padding:2rem;min-height:100vh}.app-header{text-align:center;margin-bottom:3rem}.app-header h1{font-size:3.5rem;font-weight:700;margin:0;background:linear-gradient(45deg,#10b981,#059669,#047857);background-size:200% 200%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:gradientShift 3s ease-in-out infinite}.app-header p{font-size:1.2rem;color:#ffffffb3;margin:.5rem 0 0}@keyframes gradientShift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.app-main{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:start}.content-section{background:#ffffff1a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:20px;padding:2rem;border:1px solid rgba(255,255,255,.2);box-shadow:0 8px 32px #0000004d;max-height:600px;overflow-y:auto}@media(max-width:768px){.app-main{grid-template-columns:1fr}.app-header h1{font-size:2.5rem}}.music-player{background:#ffffff1a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:20px;padding:2rem;border:1px solid rgba(255,255,255,.2);box-shadow:0 8px 32px #0000004d}.track-info{text-align:center;margin-bottom:2rem}.track-title{font-size:1.5rem;font-weight:600;margin:0 0 .5rem;color:#fff}.track-artist{font-size:1rem;color:#ffffffb3;margin:0}.progress-container{display:flex;align-items:center;gap:1rem;margin-bottom:2rem}.time{font-size:.9rem;color:#fffc;min-width:3rem;text-align:center}.progress-bar{flex:1;height:6px;background:#fff3;border-radius:3px;outline:none;cursor:pointer;-webkit-appearance:none;appearance:none;position:relative}.progress-bar::-webkit-slider-track{background:#fff3;height:6px;border-radius:3px}.progress-bar::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;background:#10b981;border-radius:50%;cursor:pointer;box-shadow:0 2px 6px #0000004d;position:relative;z-index:2}.progress-bar::-moz-range-track{background:#fff3;height:6px;border-radius:3px;border:none}.progress-bar::-moz-range-thumb{width:16px;height:16px;background:#10b981;border-radius:50%;cursor:pointer;border:none;box-shadow:0 2px 6px #0000004d}.progress-bar{background:linear-gradient(to right,#10b981 0%,#10b981 var(--progress, 0%),rgba(255,255,255,.2) var(--progress, 0%),rgba(255,255,255,.2) 100%)}.controls{display:flex;justify-content:center;align-items:center;gap:1rem;margin-bottom:2rem}.control-btn{background:#ffffff1a;border:1px solid rgba(255,255,255,.2);border-radius:50%;width:50px;height:50px;display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:#fff;cursor:pointer;transition:all .3s ease}.control-btn:hover{background:#fff3;transform:scale(1.05)}.play-btn{width:60px;height:60px;font-size:1.5rem;background:#10b981}.play-btn:hover{transform:scale(1.1);box-shadow:0 4px 20px #10b98166;background:#059669}.volume-container{display:flex;align-items:center;gap:.5rem}.volume-icon{font-size:1.2rem;color:#fffc}.volume-bar{flex:1;height:4px;background:#fff3;border-radius:2px;outline:none;cursor:pointer;-webkit-appearance:none}.volume-bar::-webkit-slider-thumb{-webkit-appearance:none;width:12px;height:12px;background:#10b981;border-radius:50%;cursor:pointer}.volume-bar::-moz-range-thumb{width:12px;height:12px;background:#10b981;border-radius:50%;cursor:pointer;border:none}.no-track{text-align:center;color:#fff9;font-style:italic}.playlist{background:#ffffff1a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:20px;padding:2rem;border:1px solid rgba(255,255,255,.2);box-shadow:0 8px 32px #0000004d;max-height:600px;overflow-y:auto}.playlist h2{font-size:1.5rem;font-weight:600;margin:0 0 1.5rem;color:#fff;text-align:center}.empty-playlist{text-align:center;color:#fff9;font-style:italic}.playlist-tracks{display:flex;flex-direction:column;gap:.5rem}.playlist-track{display:flex;align-items:center;padding:1rem;background:#ffffff0d;border-radius:12px;cursor:pointer;transition:all .3s ease;border:1px solid transparent}.playlist-track:hover{background:#ffffff1a;transform:translate(5px)}.playlist-track.active{background:linear-gradient(45deg,#10b98133,#05966933);border-color:#10b98180;box-shadow:0 4px 15px #10b98133}.track-number{width:2rem;text-align:center;font-weight:600;color:#fffc;font-size:1.1rem}.track-details{flex:1;margin-left:1rem}.track-name{font-weight:500;color:#fff;margin-bottom:.25rem}.track-artist{font-size:.9rem;color:#fff9}.track-duration{font-size:.9rem;color:#ffffffb3;font-weight:500}.playlist::-webkit-scrollbar{width:6px}.playlist::-webkit-scrollbar-track{background:#ffffff1a;border-radius:3px}.playlist::-webkit-scrollbar-thumb{background:#ffffff4d;border-radius:3px}.playlist::-webkit-scrollbar-thumb:hover{background:#ffffff80}.navbar{display:flex;justify-content:space-between;align-items:center;padding:1rem 0;margin-bottom:2rem;background:#ffffff1a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:15px;padding:1rem 2rem;border:1px solid rgba(255,255,255,.2)}.navbar-brand{font-size:1.5rem;font-weight:700}.brand-link{text-decoration:none;color:#fff;background:linear-gradient(45deg,#10b981,#059669,#047857);background-size:200% 200%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.navbar-links{display:flex;gap:2rem}.nav-link{text-decoration:none;color:#ffffffb3;font-weight:500;padding:.5rem 1rem;border-radius:8px;transition:all .3s ease}.nav-link:hover{color:#fff;background:#ffffff1a}.nav-link.active{color:#fff}.all-songs h2{font-size:1.5rem;font-weight:600;margin:0 0 1.5rem;color:#fff;text-align:center}.empty-message{text-align:center;color:#fff9;font-style:italic}.songs-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1rem}.song-card{display:flex;justify-content:space-between;align-items:center;padding:1rem;background:#ffffff0d;border-radius:12px;cursor:pointer;transition:all .3s ease;border:1px solid transparent}.song-card:hover{background:#ffffff1a;transform:translateY(-2px)}.song-card.active{background:linear-gradient(45deg,#10b98133,#05966933);border-color:#10b98180;box-shadow:0 4px 15px #10b98133}.song-info{flex:1}.song-title{font-weight:500;color:#fff;margin:0 0 .25rem;font-size:1rem}.song-artist{font-size:.9rem;color:#fff9;margin-left:.5rem}.song-duration{font-size:.8rem;color:#ffffffb3;font-weight:500}.play-button{font-size:1.2rem;color:#fffc;margin-left:1rem}.playlists h2{font-size:1.5rem;font-weight:600;margin:0 0 1.5rem;color:#fff;text-align:center}.create-playlist{margin-bottom:2rem;padding:1.5rem;background:#ffffff0d;border-radius:12px;border:1px solid rgba(255,255,255,.1)}.create-playlist h3{color:#fff;margin:0 0 1rem;font-size:1.1rem}.playlist-form{display:flex;gap:1rem;align-items:center}.playlist-input{flex:1;padding:.75rem;border:1px solid rgba(255,255,255,.2);border-radius:8px;background:#ffffff1a;color:#fff;font-size:1rem}.playlist-input::placeholder{color:#ffffff80}.create-btn{padding:.75rem 1.5rem;background-color:#10b981;border:none;border-radius:8px;color:#fff;font-weight:600;cursor:pointer;transition:all .3s ease}.create-btn:hover{transform:scale(1.05);box-shadow:0 4px 15px #10b9814d;background-color:#059669}.playlists-list{display:flex;flex-direction:column;gap:1rem}.playlist-item{background:#ffffff0d;border-radius:12px;padding:1.5rem;border:1px solid rgba(255,255,255,.1)}.playlist-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.playlist-name{color:#fff;margin:0;font-size:1.2rem;font-weight:600}.playlist-actions{display:flex;gap:.5rem;align-items:center}.add-song-btn{padding:.5rem 1rem;background:#10b98133;border:1px solid rgba(16,185,129,.5);border-radius:6px;color:#fff;font-size:.9rem;cursor:pointer;transition:all .3s ease}.add-song-btn:hover{background:#10b9814d;transform:scale(1.05)}.delete-playlist-btn{padding:.5rem 1rem;background:#10b98133;border:1px solid rgba(16,185,129,.5);border-radius:6px;color:#fff;font-size:.9rem;cursor:pointer;transition:all .3s ease}.delete-playlist-btn:hover{background:#10b9814d;transform:scale(1.05)}.add-song-section{margin-bottom:1rem}.search-container{position:relative;width:100%}.song-search-input{width:100%;padding:.75rem;border:1px solid rgba(255,255,255,.2);border-radius:8px;background:#ffffff1a;color:#fff;font-size:.9rem;outline:none;transition:all .3s ease}.song-search-input::placeholder{color:#ffffff80}.song-search-input:focus{border-color:#10b98180;background:#ffffff26}.song-dropdown{position:absolute;top:100%;left:0;right:0;background:#000000e6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.3);border-radius:8px;margin-top:.25rem;max-height:200px;overflow-y:auto;z-index:10;box-shadow:0 4px 20px #00000080}.dropdown-item{padding:.75rem;cursor:pointer;transition:all .3s ease;border-bottom:1px solid rgba(255,255,255,.2);display:flex;justify-content:space-between;align-items:center;color:#fff}.dropdown-item:last-child{border-bottom:none}.dropdown-item:hover{background:#fff3}.dropdown-item.no-results{color:#fff9;font-style:italic;cursor:default}.dropdown-item.no-results:hover{background:transparent}.playlist-songs{display:flex;flex-direction:column;gap:.5rem}.empty-playlist{color:#fff9;font-style:italic;text-align:center;padding:1rem}.playlist-song{display:flex;justify-content:space-between;align-items:center;padding:.75rem;background:#ffffff0d;border-radius:8px;cursor:pointer;transition:all .3s ease;border:1px solid transparent}.playlist-song:hover{background:#ffffff1a}.playlist-song.active{background:linear-gradient(45deg,#10b98133,#05966933);border-color:#10b98180}.modal-overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:#ffffff1a;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:20px;padding:2rem;border:1px solid rgba(255,255,255,.2);box-shadow:0 8px 32px #0000004d;max-width:500px;width:90%;max-height:80vh;overflow-y:auto}.modal h3{color:#fff;margin:0 0 1.5rem;text-align:center}.songs-list{display:flex;flex-direction:column;gap:.5rem;margin-bottom:1.5rem}.song-option{display:flex;justify-content:space-between;align-items:center;padding:.75rem;background:#ffffff0d;border-radius:8px;cursor:pointer;transition:all .3s ease}.song-option:hover{background:#ffffff1a}.close-btn{width:100%;padding:.75rem;background:#ff6b6b33;border:1px solid rgba(255,107,107,.5);border-radius:8px;color:#fff;font-weight:600;cursor:pointer;transition:all .3s ease}.close-btn:hover{background:#ff6b6b4d}