*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0a0a0f;
  --bg2:#111118;
  --bg3:#1a1a24;
  --surface:#1e1e2e;
  --surface2:#252535;
  --border:#2a2a3e;
  --green:#1db954;
  --green2:#1ed760;
  --text:#fff;
  --text2:#b3b3b3;
  --text3:#6a6a7a;
  --accent:#6c63ff;
  --sidebar-w:240px;
  --player-h:90px;
  --right-w:0px;
  --radius:12px;
}
html,body{height:100%;overflow:hidden;font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);font-size:14px}
button{background:none;border:none;cursor:pointer;color:inherit}
input{outline:none;border:none;background:none;color:inherit;font-family:inherit}
ul{list-style:none}
img{display:block;width:100%;height:100%;object-fit:cover}
::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}

/* APP SHELL */
.app{display:grid;grid-template-columns:var(--sidebar-w) 1fr var(--right-w);grid-template-rows:1fr;height:calc(100vh - var(--player-h));transition:grid-template-columns .3s}
.app.queue-open{--right-w:320px}

/* SIDEBAR */
.sidebar{background:var(--bg2);display:flex;flex-direction:column;padding:16px 0;overflow:hidden;border-right:1px solid var(--border)}
.sidebar-logo{display:flex;align-items:center;gap:10px;padding:0 20px 20px;cursor:default}
.logo-icon{width:36px;height:36px;flex-shrink:0}
.logo-text{font-size:18px;font-weight:800;background:linear-gradient(135deg,var(--green),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.sidebar-nav ul{display:flex;flex-direction:column;gap:2px;padding:0 8px}
.nav-btn{width:100%;display:flex;align-items:center;gap:14px;padding:10px 12px;border-radius:8px;font-size:14px;font-weight:600;color:var(--text2);transition:all .15s}
.nav-btn:hover{color:var(--text);background:var(--surface)}
.nav-btn.active{color:var(--text);background:var(--surface)}
.nav-icon{width:22px;height:22px;flex-shrink:0}
.nav-icon svg{width:100%;height:100%}
.sidebar-divider{height:1px;background:var(--border);margin:16px 12px}
.sidebar-playlists{flex:1;overflow-y:auto;padding:0 8px}
.playlist-header{display:flex;align-items:center;justify-content:space-between;padding:4px 12px 10px;color:var(--text3);font-size:11px;font-weight:700;letter-spacing:.08em}
.add-playlist-btn{width:22px;height:22px;color:var(--text3);transition:color .15s}.add-playlist-btn:hover{color:var(--text)}.add-playlist-btn svg{width:100%;height:100%}
.playlist-item{padding:8px 12px;border-radius:6px;cursor:pointer;color:var(--text2);font-weight:500;transition:all .15s;display:flex;align-items:center;gap:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.playlist-item:hover,.playlist-item.active{color:var(--text);background:var(--surface)}
.playlist-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0;background:var(--text3)}
.liked-dot{background:linear-gradient(135deg,#4b00e0,#b300ff)}

/* MAIN CONTENT */
.main-content{display:flex;flex-direction:column;overflow:hidden;background:var(--bg)}
.top-bar{display:flex;align-items:center;gap:12px;padding:12px 24px;background:rgba(10,10,15,.8);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);flex-shrink:0;position:sticky;top:0;z-index:10}
.nav-arrows{display:flex;gap:6px}
.arrow-btn{width:32px;height:32px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;transition:background .15s}
.arrow-btn:hover{background:rgba(255,255,255,.15)}.arrow-btn svg{width:20px;height:20px}
.top-search-bar{flex:1;max-width:480px;background:var(--surface);border-radius:30px;display:flex;align-items:center;gap:10px;padding:8px 16px;border:2px solid transparent;transition:border-color .2s}
.top-search-bar:focus-within{border-color:var(--accent)}
.search-icon-sm{width:18px;height:18px;color:var(--text2);flex-shrink:0}
#search-input{flex:1;font-size:14px;font-weight:500}
#search-input::placeholder{color:var(--text3)}
.clear-search-btn{width:20px;height:20px;color:var(--text2)}.clear-search-btn svg{width:100%;height:100%}
.top-user{margin-left:auto}
.user-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--green),var(--accent));display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;cursor:pointer;transition:transform .15s}
.user-avatar:hover{transform:scale(1.05)}

/* PAGES */
.page-container{flex:1;overflow-y:auto;padding:0}
.page{display:none;padding:28px 28px 32px;animation:fadeUp .3s ease}
.page.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}

/* HOME */
.greeting-section{margin-bottom:28px}
.greeting-section h1{font-size:28px;font-weight:800;margin-bottom:18px}
.featured-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}
.featured-card{background:var(--surface);border-radius:8px;display:flex;align-items:center;gap:12px;padding:4px 16px 4px 4px;cursor:pointer;transition:background .15s;overflow:hidden}
.featured-card:hover{background:var(--surface2)}
.featured-card:hover .featured-play{opacity:1;transform:translateY(0)}
.featured-card-art{width:56px;height:56px;border-radius:6px;overflow:hidden;flex-shrink:0;background:var(--bg3)}
.featured-card-name{font-weight:700;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.featured-play{width:28px;height:28px;border-radius:50%;background:var(--green);display:flex;align-items:center;justify-content:center;margin-left:auto;opacity:0;transform:translateY(4px);transition:all .2s;flex-shrink:0}
.featured-play svg{width:16px;height:16px;color:#000}

.section{margin-bottom:32px}
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.section-header h2{font-size:20px;font-weight:700}
.see-all-btn{color:var(--text2);font-size:13px;font-weight:700;letter-spacing:.05em;transition:color .15s}
.see-all-btn:hover{color:var(--text)}

.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:16px}
.card{background:var(--surface);border-radius:var(--radius);padding:14px;cursor:pointer;transition:background .2s;position:relative;overflow:hidden}
.card:hover{background:var(--surface2)}.card:hover .card-play{opacity:1;transform:translateY(0)}
.card-art{width:100%;padding-bottom:100%;border-radius:8px;overflow:hidden;position:relative;background:var(--bg3);margin-bottom:12px}
.card-art img{position:absolute;inset:0}
.card-art-placeholder{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--text3)}
.card-art-placeholder svg{width:40px;height:40px}
.card-play{position:absolute;bottom:14px;right:14px;width:44px;height:44px;border-radius:50%;background:var(--green);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(0,0,0,.5);opacity:0;transform:translateY(8px);transition:all .2s}
.card-play svg{width:22px;height:22px;color:#000;margin-left:2px}
.card-title{font-weight:700;font-size:14px;margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-sub{color:var(--text2);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-skeleton{background:var(--surface);border-radius:var(--radius);padding:14px;height:230px;animation:shimmer 1.5s infinite}
@keyframes shimmer{0%,100%{opacity:.4}50%{opacity:.7}}

/* SEARCH */
.search-hero{padding:0 0 24px}
.search-hero h1{font-size:26px;font-weight:800;margin-bottom:6px}
.search-hero p{color:var(--text2)}
.genres-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px;margin-bottom:32px}
.genre-card{background:var(--gc,var(--surface));border-radius:var(--radius);padding:20px 16px;cursor:pointer;position:relative;overflow:hidden;min-height:100px;display:flex;align-items:flex-end;transition:transform .2s,filter .2s}
.genre-card:hover{transform:scale(1.03);filter:brightness(1.1)}
.genre-card span{font-size:16px;font-weight:800;position:relative;z-index:1}
.genre-wave{position:absolute;bottom:-10px;right:-10px;width:80px;height:80px;border-radius:50%;background:rgba(0,0,0,.2)}

/* TRACK LIST */
.track-list{display:flex;flex-direction:column;gap:4px}
.track-item{display:grid;grid-template-columns:40px 48px 1fr auto auto;align-items:center;gap:12px;padding:8px 12px;border-radius:8px;cursor:pointer;transition:background .15s}
.track-item:hover{background:var(--surface)}.track-item:hover .track-num{display:none}.track-item:hover .track-play-sm{display:flex}
.track-item.playing{background:var(--surface);color:var(--green)}
.track-num{text-align:center;color:var(--text2);font-size:14px;width:24px}
.track-play-sm{display:none;align-items:center;justify-content:center;width:24px;color:var(--green)}
.track-play-sm svg{width:18px;height:18px}
.track-art{width:48px;height:48px;border-radius:6px;overflow:hidden;background:var(--bg3);flex-shrink:0}
.track-info{overflow:hidden}.track-info-name{font-weight:600;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.track-info-artist{color:var(--text2);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.track-item.playing .track-info-name{color:var(--green)}
.track-duration{color:var(--text2);font-size:13px;white-space:nowrap}
.track-like-sm{width:24px;height:24px;color:var(--text3);transition:color .15s;display:flex;align-items:center;justify-content:center}
.track-like-sm:hover,.track-like-sm.liked{color:var(--green)}.track-like-sm svg{width:16px;height:16px}

/* SEARCH RESULTS */
#search-results-title{font-size:22px;font-weight:700;margin-bottom:16px}

/* LIBRARY */
.library-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.library-header h1{font-size:26px;font-weight:800}
.create-playlist-btn-big{display:flex;align-items:center;gap:8px;background:var(--surface);border-radius:30px;padding:10px 20px;font-weight:600;font-size:14px;transition:background .15s}
.create-playlist-btn-big:hover{background:var(--surface2)}.create-playlist-btn-big svg{width:18px;height:18px}
.library-tabs{display:flex;gap:8px;margin-bottom:20px}
.lib-tab{padding:8px 18px;border-radius:30px;font-weight:600;font-size:13px;color:var(--text2);transition:all .15s;border:2px solid transparent}
.lib-tab:hover{color:var(--text);border-color:var(--border)}
.lib-tab.active{color:var(--text);background:var(--surface);border-color:var(--surface)}

/* RIGHT PANEL / QUEUE */
.right-panel{background:var(--bg2);border-left:1px solid var(--border);overflow-y:auto;overflow-x:hidden;width:0;transition:width .3s;display:flex;flex-direction:column}
.app.queue-open .right-panel{width:320px}
.panel-header{display:flex;align-items:center;justify-content:space-between;padding:20px 20px 12px;flex-shrink:0}
.panel-header h3{font-size:16px;font-weight:700}
.close-panel{width:28px;height:28px;color:var(--text2);transition:color .15s}.close-panel:hover{color:var(--text)}.close-panel svg{width:100%;height:100%}
.panel-section{padding:8px 16px 16px}
.panel-label{font-size:11px;font-weight:700;letter-spacing:.1em;color:var(--text3);margin-bottom:10px}
.queue-now-item,.queue-list{display:flex;flex-direction:column;gap:4px}
.queue-item{display:flex;align-items:center;gap:10px;padding:8px;border-radius:8px;cursor:pointer;transition:background .15s}
.queue-item:hover{background:var(--surface)}.queue-item.active{background:var(--surface);color:var(--green)}
.queue-art{width:40px;height:40px;border-radius:6px;overflow:hidden;background:var(--bg3);flex-shrink:0}
.queue-info{overflow:hidden;flex:1}
.queue-name{font-weight:600;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.queue-artist{color:var(--text2);font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* PLAYER BAR */
.player-bar{height:var(--player-h);background:var(--bg2);border-top:1px solid var(--border);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 24px;gap:16px;position:relative;z-index:20}
.player-track-info{display:flex;align-items:center;gap:14px;min-width:0}
.player-art{width:56px;height:56px;border-radius:8px;overflow:hidden;background:var(--surface);flex-shrink:0;position:relative}
.player-art-placeholder{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--text3)}.player-art-placeholder svg{width:24px;height:24px}
#player-art-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.player-track-meta{min-width:0;flex:1}
.track-name-scroll{overflow:hidden;white-space:nowrap}
.track-name-scroll span{font-weight:700;font-size:14px;display:inline-block}
.player-artist{color:var(--text2);font-size:12px}
.like-btn{width:28px;height:28px;display:flex;align-items:center;justify-content:center;color:var(--text3);transition:color .15s;flex-shrink:0}
.like-btn:hover{color:var(--text)}.like-btn.liked{color:var(--green)}.like-btn.liked svg{fill:var(--green);stroke:var(--green)}
.like-btn svg{width:18px;height:18px}

.player-controls{display:flex;flex-direction:column;align-items:center;gap:8px;min-width:400px}
.control-buttons{display:flex;align-items:center;gap:8px}
.ctrl-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:50%;color:var(--text2);transition:all .15s}
.ctrl-btn:hover{color:var(--text);transform:scale(1.1)}.ctrl-btn svg{width:22px;height:22px}
.ctrl-btn.sm svg{width:18px;height:18px}
.ctrl-btn.active{color:var(--green)}
.play-btn{width:44px;height:44px;background:var(--text);color:#000 !important;transition:transform .15s !important}
.play-btn:hover{transform:scale(1.06) !important;background:var(--text)}
.play-btn.lg{width:60px;height:60px}.play-btn.lg svg{width:30px;height:30px}
.play-btn svg{width:24px;height:24px;color:#000}
.progress-section{display:flex;align-items:center;gap:10px;width:100%}
.time-label{font-size:11px;color:var(--text2);white-space:nowrap;min-width:36px;text-align:center}
.progress-bar-wrap{flex:1;height:16px;display:flex;align-items:center;cursor:pointer;position:relative}
.progress-bg{position:absolute;left:0;right:0;height:4px;background:var(--border);border-radius:2px}
.progress-fill{position:absolute;left:0;height:4px;background:var(--green);border-radius:2px;transition:width .1s linear}
.progress-thumb{position:absolute;width:12px;height:12px;border-radius:50%;background:#fff;transform:translateX(-50%);opacity:0;transition:opacity .15s;margin-top:-4px;top:50%;transform:translateY(-50%) translateX(-50%)}
.progress-bar-wrap:hover .progress-fill{background:var(--green2)}
.progress-bar-wrap:hover .progress-thumb{opacity:1}

.player-extra{display:flex;align-items:center;gap:8px;justify-content:flex-end}
.volume-slider-wrap{width:90px}
.volume-slider{width:100%;appearance:none;height:4px;border-radius:2px;background:linear-gradient(to right,var(--text) 80%,var(--border) 80%);cursor:pointer}
.volume-slider::-webkit-slider-thumb{appearance:none;width:12px;height:12px;border-radius:50%;background:#fff;cursor:pointer;transition:transform .15s}
.volume-slider:hover::-webkit-slider-thumb{transform:scale(1.3)}

/* VISUALIZER */
.visualizer-canvas{position:fixed;bottom:var(--player-h);left:0;right:0;height:60px;pointer-events:none;z-index:15;opacity:.6}

/* FULLSCREEN PLAYER */
.fullscreen-overlay{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center}
.fs-bg{position:absolute;inset:0;filter:blur(80px) brightness(.4);background-size:cover;background-position:center;transition:background .5s}
.fs-content{position:relative;display:flex;align-items:center;gap:64px;padding:40px;max-width:900px;width:100%}
.fs-close{position:fixed;top:24px;left:24px;width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;transition:background .15s;z-index:1}
.fs-close:hover{background:rgba(255,255,255,.2)}.fs-close svg{width:24px;height:24px}
.fs-art-wrap{position:relative;flex-shrink:0}
.fs-art{width:320px;height:320px;border-radius:20px;overflow:hidden;box-shadow:0 32px 80px rgba(0,0,0,.8);position:relative;z-index:1}
.fs-art img{width:100%;height:100%;object-fit:cover}
.fs-art-glow{position:absolute;inset:-40px;border-radius:50%;filter:blur(40px);opacity:.6;z-index:0;transition:background .5s}
.vinyl-ring{position:absolute;inset:-20px;border-radius:50%;border:3px solid rgba(255,255,255,.1);animation:spin 8s linear infinite;display:none}
@keyframes spin{to{transform:rotate(360deg)}}
.vinyl-ring.active{display:block}
.fs-info{flex:1;min-width:0}
.fs-info h2{font-size:32px;font-weight:800;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.fs-info p{color:var(--text2);font-size:16px;margin-bottom:28px}
.fs-progress{display:flex;align-items:center;gap:12px;margin-bottom:28px}
.fs-progress span{font-size:12px;color:var(--text2);min-width:40px;text-align:center}
.fs-progress .progress-bar-wrap{flex:1}
.fs-controls{display:flex;align-items:center;justify-content:center;gap:16px}

/* TOAST */
.toast{position:fixed;bottom:calc(var(--player-h) + 16px);left:50%;transform:translateX(-50%) translateY(20px);background:var(--surface2);color:var(--text);padding:12px 24px;border-radius:30px;font-size:14px;font-weight:600;pointer-events:none;opacity:0;transition:all .3s;z-index:200;white-space:nowrap;box-shadow:0 8px 32px rgba(0,0,0,.5)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* PLAYING ANIMATION */
.playing-bars{display:flex;align-items:flex-end;gap:2px;height:16px}
.playing-bars span{width:3px;background:var(--green);border-radius:2px;animation:bars .8s ease-in-out infinite}
.playing-bars span:nth-child(2){animation-delay:.2s}.playing-bars span:nth-child(3){animation-delay:.4s}
@keyframes bars{0%,100%{height:4px}50%{height:14px}}