:root{--amoled-bg:#000000;--sidebar-width:320px;--accent-color:#ff3333;--text-primary:#ffffff;--text-secondary:rgba(255,255,255,0.5);--glass-bg:rgba(255,255,255,0.03);--glass-border:rgba(255,255,255,0.08);--player-height:100px;--sidebar-mobile-width:80%;--bg-accent:rgba(255,0,0,0.15);--bg-accent-strong:rgba(255,0,0,0.25)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}body,html{margin:0;padding:0;height:100%;background-color:var(--amoled-bg);color:var(--text-primary);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;overflow:hidden}.app-container{display:flex;height:100vh;height:100dvh;width:100%;position:relative}.sidebar{width:var(--sidebar-width);height:calc(100% - var(--player-height));background:var(--amoled-bg);border-right:1px solid var(--glass-border);display:flex;flex-direction:column;transition:transform .4s cubic-bezier(.2,.9,.2,1);z-index:1000}.search-box{margin:30px 20px 24px;background:var(--glass-bg);border:1px 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(max-width:900px){.sidebar{position:fixed;top:0;left:0;width:100%;height:100%;z-index:3000;transform:translateX(-100%);background:rgba(0,0,0,.98);border-right:none}.sidebar.open{transform:translateX(0)}.sidebar-toggle{display:flex}}.fullscreen .sidebar{display:none!important}.fullscreen .player-bar{transform:translateY(100%);opacity:0;transition:transform .6s cubic-bezier(.2,.9,.2,1),opacity .4s ease}.fullscreen.show-controls .player-bar{transform:translateY(0);opacity:1}.fullscreen .lyrics-viewer{padding:0 10%}.fullscreen.show-controls .bg-haze{opacity:.8}body:before{content:"";top:0;left:0;width:100%;height:100%;background-image:radial-gradient(circle at 20% 50%,var(--bg-accent) 0,transparent 45%),radial-gradient(circle at 80% 20%,var(--bg-accent) 0,transparent 45%),linear-gradient(rgba(255,255,255,.005) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.005) 1px,transparent 1px);background-size:100% 100%,100% 100%,40px 40px,40px 40px;z-index:-1;animation:subtleShift 30s 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(max-width:900px){.fullscreen-btn,.repeat-btn,.shuffle-btn,.vol-btn-wrapper,.volume-container{display:none!important}.player-controls{gap:20px}}.btn-delete-song{opacity:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:rgba(255,51,51,.05);border:1px solid rgba(255,51,51,.1);border-radius:8px;color:rgba(255,255,255,.4);font-size:13px;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);padding:0;margin-left:auto}.playlist-item:hover .btn-delete-song{opacity:1}.btn-delete-song:hover{background:rgba(255,51,51,.15);border-color:rgba(255,51,51,.3);color:#ff4d4d;transform:scale(1.1)}.lyrics-viewer.manual-scroll .lyr{filter:none!important;opacity:1!important}@media (max-width:900px){#fullscreenBtn,.extra-controls,.volume-container{display:none!important}.player-bar{height:auto;min-height:80px;padding-bottom:env(safe-area-inset-bottom,12px);background:rgba(0,0,0,.92);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-top:1px solid 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.2s}.btn-add-song:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.3)}.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.85);-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);z-index:2000;display:none;align-items:center;justify-content:center;padding:20px}.modal-overlay.open{display:flex}.modal-content{background:#0a0a0a;width:100%;max-width:450px;border-radius:20px;border:1px solid var(--glass-border);overflow:hidden;animation:modalPop .4s cubic-bezier(.2,.9,.2,1)}@keyframes modalPop{0%{transform:scale(.9) translateY(20px);opacity:0}to{transform:scale(1) translateY(0);opacity:1}}.modal-header{padding:20px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--glass-border)}.modal-header h3{margin:0;font-size:18px;font-weight:600}.btn-close{background:none;border:none;color:var(--text-secondary);font-size:20px;cursor:pointer}.modal-body{padding:24px}.input-group{margin-bottom:20px}.input-group label{display:block;font-size:12px;color:var(--text-secondary);margin-bottom:8px;text-transform:uppercase;letter-spacing:1px}.input-group input{width:100%;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:10px;padding:12px 14px;color:#fff;outline:none}.input-group input:focus{border-color:rgba(255,255,255,.3)}.file-input-wrapper{position:relative;width:100%}.file-input-wrapper input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer;z-index:2}.file-label{display:block;width:100%;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:10px;padding:12px 14px;color:var(--text-secondary);font-size:14px;text-align:center;transition:all .2s}.file-input-wrapper:hover .file-label{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.3)}.file-input-wrapper.selected .file-label{color:var(--accent-color);border-color:var(--accent-color)}.modal-hint{font-size:11px;color:var(--text-secondary);margin:10px 0 0;font-style:italic;line-height:1.4}.modal-footer{padding:16px 24px 24px;display:flex;justify-content:flex-end}.btn-save{background:#fff;color:#000;border:none;border-radius:30px;padding:12px 32px;font-weight:600;cursor:pointer;transition:transform .2s}.btn-save:hover{transform:scale(1.05)}.bg-visualizer,.seek-tip{display:none}.seek-tip{position:absolute;top:-35px;background:#fff;color:#000;padding:3px 8px;border-radius:4px;font-size:11px;font-weight:700;transform:translateX(-50%);pointer-events:none}.progress-bar.is-seeking .seek-tip{display:block}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.playlist-note{margin:0 12px 14px;padding:10px 12px;border-radius:12px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);font-size:12px;color:#bbb;line-height:1.4;cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none;touch-action:pan-y}.playlist-note:active,.playlist-note:hover{background:rgba(255,255,255,.08)}.playlist-note-line{display:block;white-space:normal;margin-bottom:4px}.playlist-note-line.playlist-note-green{color:#6ee39b}.playlist-note-line.playlist-note-gray{color:#aaa}