:root{--bg-main:#0b0e14;--bg-secondary:#151a22;--bg-hover:#2a3241;--accent-color:#6b46c1;--accent-cyan:#0bc5ea;--accent-gradient:linear-gradient(135deg, var(--accent-color) 0%, var(--accent-cyan) 100%);--bg-gradient:radial-gradient(circle at top right, #6b46c126 0%, var(--bg-main) 40%), radial-gradient(circle at bottom left, #0bc5ea1a 0%, var(--bg-main) 40%);--text-main:#fafafa;--text-secondary:#8a94a6;--glass-bg:#0b0e14b3;--glass-border:#ffffff0d;--font-primary:"Outfit", -apple-system, system-ui, sans-serif;--font-secondary:"Inter", -apple-system, system-ui, sans-serif;--font-mono:"Inter", monospace;--radius-sm:8px;--radius-md:12px;--radius-lg:24px;--radius-full:9999px;--shadow-md:0 8px 24px #0006;--shadow-inner:inset 0 2px 4px #0003}:root[data-theme=light]{--bg-main:#f6e9e6;--bg-secondary:#e4e7eb;--bg-hover:#d5d9e0;--accent-color:#7a1e2c;--accent-cyan:#9f273a;--accent-gradient:linear-gradient(135deg, var(--accent-color) 0%, var(--accent-cyan) 100%);--bg-gradient:radial-gradient(circle at top right, #7a1e2c1a 0%, var(--bg-main) 40%), radial-gradient(circle at bottom left, #e4e7eb80 0%, var(--bg-main) 40%);--text-main:#1a0f14;--text-secondary:#5a6476;--glass-bg:#f6e9e6bf;--glass-border:#0000000d;--shadow-md:0 8px 24px #00000014;--shadow-inner:inset 0 2px 4px #0000000d}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-secondary);background-color:var(--bg-main);background-image:var(--bg-gradient);color:var(--text-main);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-attachment:fixed;line-height:1.5;transition:background-color .4s,color .4s;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-family:var(--font-primary);letter-spacing:-.02em;font-weight:700}.glass{background:var(--glass-bg);-webkit-backdrop-filter:blur(20px);border-top:1px solid var(--glass-border);transition:background .4s,border-color .4s}input{font-family:var(--font-secondary)}@keyframes slideUpFade{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes equalizer{0%{transform:scaleY(.3)}50%{transform:scaleY(1)}to{transform:scaleY(.3)}}.with-tooltip{position:relative}.with-tooltip:after{content:attr(data-tooltip);background:var(--bg-hover);color:var(--text-main);border-radius:var(--radius-sm);font-size:11px;font-family:var(--font-secondary);white-space:nowrap;pointer-events:none;opacity:0;visibility:hidden;z-index:10000;border:1px solid #ffffff1a;padding:6px 12px;font-weight:600;transition:all .2s cubic-bezier(.16,1,.3,1);position:absolute;bottom:calc(100% + 8px);left:50%;transform:translate(-50%)translateY(5px);box-shadow:0 4px 12px #0000004d}.with-tooltip:hover:after{opacity:1;visibility:visible;transform:translate(-50%)translateY(0)}.tooltip-bottom:after{top:calc(100% + 8px);bottom:auto;transform:translate(-50%)translateY(-5px)}.with-tooltip.tooltip-bottom:hover:after{transform:translate(-50%)translateY(0)}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--bg-hover);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.app-container{width:100vw;height:100vh;display:flex;overflow:hidden}.sidebar{background-color:var(--bg-secondary);border-right:1px solid var(--glass-border);z-index:500;flex-direction:column;flex-shrink:0;width:260px;padding:24px;transition:all .3s;display:flex}.brand{margin-bottom:40px}.brand h1{background:var(--accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:24px;line-height:1.2}.sidebar-menu{flex-direction:column;gap:16px;margin:0;padding:0;list-style:none;display:flex}.menu-item{color:var(--text-secondary);cursor:pointer;border-radius:var(--radius-md);align-items:center;gap:12px;padding:12px 16px;font-size:15px;font-weight:500;transition:all .3s cubic-bezier(.25,.8,.25,1);display:flex;position:relative}.menu-item:hover{color:var(--text-main);background:#8a94a61a;transform:translate(4px)}.menu-item.active{color:var(--text-main);background:linear-gradient(90deg,#8a94a614,#0000);font-weight:700}.menu-item.active:before{content:"";background:var(--accent-color);border-radius:0 4px 4px 0;width:4px;height:50%;position:absolute;top:50%;left:-12px;transform:translateY(-50%)}.main-content{flex-direction:column;flex:1;padding-bottom:120px;display:flex;position:relative;overflow-y:auto}.header{z-index:50;background:var(--glass-bg);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--glass-border);justify-content:space-between;align-items:center;min-height:85px;padding:24px 32px;display:flex;position:sticky;top:0}.header-title h2{color:var(--text-main);font-size:28px}.header-actions{align-items:center;gap:16px;display:flex}.search-bar{background:var(--bg-secondary);border-radius:var(--radius-full);width:300px;box-shadow:var(--shadow-inner);border:1px solid #0000;align-items:center;padding:10px 16px;transition:all .3s;display:flex}.search-bar:focus-within{border-color:var(--accent-color);background:var(--bg-hover);box-shadow:0 0 0 3px #6b46c126}.search-bar input{color:var(--text-main);background:0 0;border:none;outline:none;width:100%;margin-left:8px;font-size:14px}.search-bar input::placeholder{color:var(--text-secondary)}.theme-toggle-round{background:var(--bg-secondary);border:1px solid var(--glass-border);width:44px;height:44px;color:var(--text-main);cursor:pointer;box-shadow:var(--shadow-inner);border-radius:50%;justify-content:center;align-items:center;transition:all .3s;display:flex}.theme-toggle-round:hover{background:var(--bg-hover);color:var(--accent-color);transform:rotate(15deg)}.content-area{padding:10px 32px 32px}.upload-zone{border-radius:var(--radius-lg);text-align:center;cursor:pointer;background:var(--glass-bg);opacity:.85;border:2px dashed #8a94a666;margin-bottom:32px;padding:64px 48px;transition:all .3s cubic-bezier(.25,.8,.25,1);box-shadow:0 4px 6px #00000005}.upload-zone:hover,.upload-zone.dragging{border-color:var(--accent-color);background:var(--glass-bg);opacity:1;box-shadow:var(--shadow-md);transform:translateY(-2px)}.upload-input{display:none}.section-title{color:var(--text-main);margin-bottom:16px;font-size:20px;font-weight:600}.song-list{flex-direction:column;display:flex}.song-card{border-radius:var(--radius-md);cursor:pointer;opacity:0;border:1px solid #0000;grid-template-columns:48px 1fr auto;align-items:center;padding:12px 16px;transition:background .2s,transform .2s;animation:.3s forwards slideUpFade;display:grid}.song-card:hover{background:var(--bg-hover);border-color:var(--glass-border)}.song-card.active{background:var(--bg-hover);border-color:var(--accent-color)}.song-card.active .song-title{color:var(--accent-cyan)}.song-index{color:var(--text-secondary);font-family:var(--font-mono);font-size:14px}.song-card-info{flex-direction:column;display:flex}.song-title{color:var(--text-main);margin-bottom:4px;font-size:15px;font-weight:600}.song-artist{color:var(--text-secondary);font-size:13px}.equalizer{align-items:flex-end;gap:3px;height:14px;display:flex}.eq-bar{background:var(--accent-cyan);border-radius:2px;width:3px;animation:1s ease-in-out infinite equalizer}.eq-bar:first-child{height:60%;animation-delay:.1s}.eq-bar:nth-child(2){height:100%;animation-delay:.3s}.eq-bar:nth-child(3){height:80%;animation-delay:.5s}.eq-bar:nth-child(4){height:50%;animation-delay:.2s}.player-footer{z-index:1000;justify-content:space-between;align-items:center;width:100%;height:90px;padding:0 32px;display:flex;position:fixed;bottom:0;left:0}.player-info{align-items:center;gap:16px;width:30%;display:flex}.album-art-placeholder{border-radius:var(--radius-sm);background:linear-gradient(135deg, var(--bg-hover), var(--bg-secondary));width:56px;height:56px;box-shadow:var(--shadow-md);flex-shrink:0;justify-content:center;align-items:center;display:flex;overflow:hidden}.player-info-text h4{color:var(--text-main);white-space:nowrap;text-overflow:ellipsis;max-width:200px;margin-bottom:4px;font-size:15px;overflow:hidden}.player-info-text p{color:var(--text-secondary);font-size:13px}.player-controls-container{flex-direction:column;align-items:center;width:40%;display:flex}.player-controls{align-items:center;gap:24px;margin-bottom:8px;display:flex}.control-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;transition:all .2s;display:flex}.control-btn:hover{color:var(--text-main)}.control-btn.active{color:var(--accent-cyan);position:relative}.control-btn.active:after{content:"";background:var(--accent-cyan);border-radius:50%;width:4px;height:4px;position:absolute;bottom:-6px}.control-btn.play{background:var(--text-main);color:var(--bg-main);border-radius:50%;width:40px;height:40px}.control-btn.play:hover{background:var(--text-main);transform:scale(1.05);box-shadow:0 4px 12px #6b46c166}.control-btn.play:active{transform:scale(.95)}.progress-container{width:100%;color:var(--text-secondary);font-size:12px;font-family:var(--font-mono);align-items:center;gap:12px;display:flex}.progress-bar{background:var(--bg-hover);cursor:pointer;border-radius:2px;flex:1;height:4px;transition:height .15s;position:relative}.progress-bar:hover{height:6px}.progress-fill{background:var(--accent-color);border-radius:2px;width:0%;height:100%;transition:width .1s linear}.progress-thumb{opacity:0;background:#fff;border-radius:50%;width:12px;height:12px;transition:opacity .2s;position:absolute;top:50%;transform:translate(-50%,-50%);box-shadow:0 2px 4px #00000080}.progress-bar:hover .progress-fill{background:var(--accent-cyan)}.progress-bar:hover .progress-thumb{opacity:1}.player-volume{justify-content:flex-end;align-items:center;gap:8px;width:30%;display:flex}.volume-slider{-webkit-appearance:none;background:var(--bg-hover);border-radius:2px;outline:none;width:100px;height:4px;transition:height .15s}.volume-slider:hover{height:6px}.volume-slider::-webkit-slider-thumb{appearance:none;cursor:pointer;z-index:100;opacity:0;background:#fff;border-radius:50%;width:12px;height:12px;transition:opacity .2s}.volume-slider:hover::-webkit-slider-thumb{opacity:1}.now-playing-view{flex-direction:column;justify-content:center;align-items:center;width:100%;max-width:500px;margin:0 auto;padding:10px 24px;transition:max-width .4s;animation:.4s forwards slideUpFade;display:flex}.now-playing-view.is-video{width:100%;max-width:1200px;padding:10px 0}.media-container{aspect-ratio:1;border-radius:var(--radius-lg);background:var(--bg-secondary);width:100%;margin-bottom:32px;transition:all .4s;position:relative;overflow:hidden;box-shadow:0 16px 40px #00000040}.media-container.is-video{aspect-ratio:auto;background:#000;justify-content:center;align-items:center;height:auto;max-height:85vh;display:flex;box-shadow:0 24px 60px #0006}.media-placeholder{color:#fff;background:var(--accent-gradient);justify-content:center;align-items:center;width:100%;height:100%;font-size:80px;font-weight:700;transition:opacity .3s;display:flex;position:absolute;top:0;left:0}.media-placeholder.hidden{opacity:0;pointer-events:none}.video-mount{border-radius:var(--radius-lg);z-index:5;width:100%;height:100%;position:absolute;top:0;left:0;overflow:hidden}.video-mount.visible{opacity:1;pointer-events:auto;width:100%;height:auto;max-height:85vh;position:relative}.video-mount.hidden{opacity:0;pointer-events:none}.cover-image{object-fit:cover;border-radius:var(--radius-lg);width:100%;height:100%;position:absolute;top:0;left:0}.upload-cover-btn{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#fff;border-radius:var(--radius-full);cursor:pointer;opacity:0;z-index:100;background:#00000080;border:1px solid #ffffff1a;align-items:center;gap:8px;padding:8px 12px;font-size:12px;font-weight:600;transition:opacity .3s,transform .2s,background .2s;display:flex;position:absolute;bottom:16px;right:16px}.media-container:hover .upload-cover-btn{opacity:1}.upload-cover-btn:hover{background:#ffffff26;transform:scale(1.05)}.track-details{text-align:center}.track-details h2{color:var(--text-main);margin-bottom:8px;font-size:28px;font-weight:700;line-height:1.1}.track-details p{color:var(--text-secondary);font-size:16px}@media (width<=768px){.app-container{flex-direction:column}.sidebar{position:fixed;bottom:16px;left:16px;right:16px;border-right:none!important;border:1px solid var(--glass-border)!important;background:var(--glass-bg)!important;-webkit-backdrop-filter:blur(24px)!important;z-index:1000!important;border-radius:20px!important;flex-direction:row!important;justify-content:space-around!important;align-items:center!important;width:calc(100% - 32px)!important;height:68px!important;padding:0 8px!important;box-shadow:0 8px 32px #0006!important}.sidebar .brand,.sidebar div p{display:none!important}.sidebar div{display:contents!important}.sidebar ul{flex-direction:row!important;justify-content:space-around!important;align-items:center!important;gap:0!important;width:100%!important;height:100%!important;margin:0!important}.sidebar ul li{background:0 0!important;flex-direction:column!important;flex:1!important;justify-content:center!important;gap:4px!important;height:100%!important;padding:8px!important;font-size:10px!important;transform:none!important}.sidebar ul li span{letter-spacing:.2px!important;font-weight:600!important;display:block!important}.sidebar ul li:before{display:none!important}.sidebar ul li.active{color:var(--accent-cyan)!important;background:0 0!important}.main-content{height:100vh!important;padding-bottom:240px!important}.header{flex-direction:column!important;align-items:center!important;gap:16px!important;min-height:auto!important;padding:20px 16px!important}.header-title{text-align:center!important;justify-content:center!important;width:100%!important;display:flex!important}.header-actions{justify-content:center!important;gap:12px!important;width:100%!important}.search-bar{width:100%!important;max-width:320px!important;margin-right:0!important}.content-area{padding:16px!important}.upload-zone{border-radius:var(--radius-md)!important;padding:32px 20px!important}.player-footer{background:var(--glass-bg)!important;-webkit-backdrop-filter:blur(24px)!important;border:1px solid var(--glass-border)!important;z-index:999!important;border-radius:24px!important;flex-direction:column!important;width:calc(100% - 32px)!important;height:auto!important;min-height:110px!important;padding:16px!important;position:fixed!important;bottom:96px!important;left:16px!important;right:16px!important;box-shadow:0 10px 40px #0000004d!important}.player-info{justify-content:flex-start!important;gap:12px!important;width:100%!important;margin-bottom:12px!important;display:flex!important}.album-art-placeholder{border-radius:var(--radius-sm)!important;width:44px!important;height:44px!important}.player-info-text h4{max-width:160px!important;margin:0!important;font-size:14px!important}.player-controls-container{flex-direction:column!important;width:100%!important;display:flex!important}.player-controls{justify-content:space-between!important;gap:0!important;width:100%!important;margin-bottom:12px!important;padding:0 8px!important;display:flex!important}.player-volume{display:none!important}.song-card{border-radius:var(--radius-md)!important;background:#ffffff08!important;grid-template-columns:32px 1fr auto!important;margin-bottom:8px!important;padding:14px 12px!important}.progress-container{padding:0 4px!important}}