@import "https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap";:root{--font-base:"Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;--bg-deep:#0b0c10;--bg-app:#12131c;--bg-surface-glass:#1e293b73;--bg-surface-glass-hover:#1e293bb3;--border-glass:#ffffff0f;--border-glass-active:#818cf84d;--primary:#818cf8;--primary-glow:#818cf866;--primary-hover:#6366f1;--accent:#2dd4bf;--accent-glow:#2dd4bf4d;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--shadow-lg:0 10px 25px -5px #00000080, 0 8px 10px -6px #00000080;--shadow-glow:0 0 15px #818cf826}*{box-sizing:border-box;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;padding:0}body{font-family:var(--font-base);background-color:var(--bg-deep);color:var(--text-primary);height:100vh;overflow:hidden}#root{height:100%}.app-container{background:radial-gradient(circle at 50% 0%, #1e1e38 0%, var(--bg-deep) 70%);flex-direction:column;height:100vh;display:flex;overflow:hidden}.app-header{-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border-glass);z-index:100;background:#0f172a99;justify-content:space-between;align-items:center;height:64px;padding:0 24px;display:flex}.header-left{align-items:center;gap:12px;display:flex}.logo-icon{color:var(--primary);filter:drop-shadow(0 0 8px var(--primary-glow))}.app-title{letter-spacing:.05em;background:linear-gradient(135deg,#fff 0%,#a5b4fc 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:20px;font-weight:700}.icon-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:8px;justify-content:center;align-items:center;padding:8px;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex}.icon-btn:hover{color:var(--text-primary);background:var(--bg-surface-glass);border-color:var(--border-glass)}.header-center{flex:1;justify-content:center;max-width:50%;display:flex}.song-indicator{border:1px solid var(--border-glass);background:#ffffff08;border-radius:20px;align-items:center;gap:8px;padding:6px 16px;display:flex;box-shadow:inset 0 1px 1px #ffffff0d}.song-title{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;max-width:200px;font-size:15px;font-weight:600;overflow:hidden}.badge{color:var(--primary);background:#818cf826;border:1px solid #818cf833;border-radius:12px;padding:2px 8px;font-size:11px;font-weight:500}.global-badge{color:var(--accent);background:#2dd4bf26;border:1px solid #2dd4bf33}.song-indicator-empty{color:var(--text-muted);font-size:14px}.header-right{align-items:center;gap:16px;display:flex}.wakelock-badge{cursor:pointer;color:var(--text-muted);background:#ffffff05;border:1px solid #0000;border-radius:30px;align-items:center;gap:6px;padding:6px 14px;font-size:12px;font-weight:600;transition:all .3s;display:flex}.wakelock-badge.active{color:var(--accent);border:1px solid var(--accent);box-shadow:0 0 12px var(--accent-glow);background:#2dd4bf1a}.wakelock-badge.failed{color:#f87171;background:#ef44441a;border:1px solid #ef4444}.pulse-icon{animation:2s infinite pulse}@keyframes pulse{0%{opacity:1;transform:scale(1)}50%{opacity:.6;transform:scale(1.15)}to{opacity:1;transform:scale(1)}}.logout-btn:hover{color:#ef4444;background:#ef44441a;border-color:#ef444433}.main-content{flex:1;display:flex;position:relative;overflow:hidden}.sidebar{-webkit-backdrop-filter:blur(12px);border-right:1px solid var(--border-glass);z-index:10;background:#0f172a66;flex-direction:column;gap:24px;width:320px;padding:24px;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;overflow-y:auto}.sidebar.closed{margin-left:-320px}.sidebar-section{flex-direction:column;gap:12px;display:flex}.section-title{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);border-bottom:1px solid #ffffff08;align-items:center;gap:8px;padding-bottom:6px;font-size:13px;font-weight:700;display:flex}.performance-list{flex-direction:column;gap:6px;display:flex}.performance-item{background:var(--bg-surface-glass);border:1px solid var(--border-glass);color:var(--text-secondary);font-family:var(--font-base);text-align:left;cursor:pointer;border-radius:10px;align-items:center;gap:10px;padding:10px 14px;font-size:14px;font-weight:500;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex}.performance-item:hover{background:var(--bg-surface-glass-hover);color:var(--text-primary);border-color:#ffffff26}.performance-item.active{color:var(--primary);border-color:var(--primary);box-shadow:var(--shadow-glow);background:#818cf81f}.playlist-section{flex-direction:column;flex:1;display:flex;overflow:hidden}.playlist-songs{flex-direction:column;flex:1;gap:8px;padding-right:4px;display:flex;overflow-y:auto}.playlist-songs::-webkit-scrollbar{width:4px}.playlist-songs::-webkit-scrollbar-thumb{background:#ffffff14;border-radius:2px}.song-item-group{border:1px solid #0000;border-radius:10px;flex-direction:column;transition:all .2s,border-top-color .1s;display:flex;position:relative}.song-item-group.active-group{border-color:var(--border-glass);background:#ffffff05}.song-item-group.dragging{opacity:.35;border:1px dashed var(--primary);background:#818cf80d}.song-item-group.drag-over{border-top:3px solid var(--accent);transform:translateY(2px)}.song-item-wrapper{align-items:center;gap:4px;width:100%;display:flex}.drag-handle{cursor:grab;color:var(--text-muted);opacity:.3;justify-content:center;align-items:center;padding:8px 2px 8px 4px;transition:opacity .2s,color .2s;display:flex}.drag-handle:hover{opacity:1;color:var(--primary)}.drag-handle:active{cursor:grabbing}.song-item{background:var(--bg-surface-glass);border:1px solid var(--border-glass);color:var(--text-secondary);font-family:var(--font-base);text-align:left;cursor:pointer;border-radius:10px;flex:1;align-items:center;gap:12px;padding:12px 14px;font-size:14px;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex}.song-item:hover{background:var(--bg-surface-glass-hover);color:var(--text-primary);border-color:#ffffff1f}.song-item.active{color:var(--primary);border-color:var(--primary);box-shadow:var(--shadow-glow);background:linear-gradient(135deg,#818cf82e 0%,#6366f114 100%);font-weight:600}.song-number{color:var(--text-muted);background:#0003;border-radius:4px;padding:2px 6px;font-size:11px;font-weight:700}.song-item.active .song-number{color:var(--primary);background:#818cf826}.song-title-text{white-space:nowrap;text-overflow:ellipsis;flex:1;overflow:hidden}.song-pages-count{color:var(--text-muted);font-size:11px}.search-bar-container{border:1px solid var(--border-glass);background:#0003;border-radius:8px;align-items:center;gap:8px;margin:10px 14px 14px;padding:8px 12px;transition:all .2s;display:flex}.search-bar-container:focus-within{border-color:var(--primary);box-shadow:0 0 0 1px var(--primary);background:#0000004d}.search-icon{color:var(--text-muted);flex-shrink:0}.search-input{color:var(--text-primary);font-size:13px;font-family:var(--font-base);background:0 0;border:none;outline:none;flex:1;padding:0}.search-input::placeholder{color:var(--text-muted)}.search-clear-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;padding:2px;transition:color .2s;display:flex}.search-clear-btn:hover{color:var(--text-primary)}.drag-handle.disabled{opacity:.15;cursor:not-allowed}.page-jump-links{border-top:1px solid #ffffff08;flex-wrap:wrap;gap:6px;padding:10px 14px;display:flex}.page-jump-btn{border:1px solid var(--border-glass);color:var(--text-secondary);font-family:var(--font-base);cursor:pointer;background:#00000026;border-radius:6px;justify-content:center;align-items:center;width:24px;height:24px;font-size:11px;font-weight:500;transition:all .15s;display:flex}.page-jump-btn:hover{color:var(--text-primary);background:#ffffff14;border-color:#ffffff26}.page-jump-btn.current{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 0 8px var(--primary-glow);font-weight:700}.viewer-container{background:#08090d;flex:1;justify-content:center;display:flex;position:relative}.viewer-container.fit-page{align-items:center;padding:0;overflow:hidden}.viewer-container.fit-width{align-items:flex-start;padding:0;overflow-y:auto}.viewer-container.fit-width::-webkit-scrollbar{width:6px}.viewer-container.fit-width::-webkit-scrollbar-thumb{background:#ffffff26;border-radius:3px}.canvas-wrapper{justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.fit-page .canvas-wrapper{border:1px solid #ffffff0d;border-radius:8px;max-width:100%;max-height:100%;box-shadow:0 20px 50px #000000b3}.fit-width .canvas-wrapper{width:100%;box-shadow:none;border:none;border-radius:0}.score-canvas{background-color:#fff;transition:opacity .2s;display:block}.loading-container{color:var(--text-secondary);flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:40px 0;font-size:14px;display:flex}.spinner{color:var(--primary);animation:1.2s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.viewer-placeholder{color:var(--text-secondary);text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:20px;max-width:400px;display:flex}.placeholder-icon{color:var(--text-muted);opacity:.3}.viewer-placeholder p{font-size:15px;line-height:1.6}.empty-text{color:var(--text-muted);text-align:center;padding:20px 0;font-size:13px}.nav-overlay-btn{cursor:pointer;opacity:0;z-index:5;background:0 0;border:none;outline:none;justify-content:center;align-items:center;width:15%;transition:opacity .3s;display:flex;position:absolute;top:0;bottom:0}.nav-overlay-btn:hover:not(:disabled){opacity:1}.nav-overlay-btn.prev{background:linear-gradient(90deg,#0006 0%,#0000 100%);left:0}.nav-overlay-btn.next{background:linear-gradient(270deg,#0006 0%,#0000 100%);right:0}.arrow-indicator{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid var(--border-glass);color:#fff;width:56px;height:56px;box-shadow:var(--shadow-lg);background:#0f172aa6;border-radius:50px;justify-content:center;align-items:center;transition:transform .2s cubic-bezier(.175,.885,.32,1.275);display:flex}.nav-overlay-btn:hover:not(:disabled) .arrow-indicator{transform:scale(1.1)}.nav-overlay-btn:active:not(:disabled) .arrow-indicator{background:var(--primary);transform:scale(.95)}.nav-overlay-btn:disabled{cursor:not-allowed}.auth-container{background:radial-gradient(circle at 50% 30%,#1e1b4b 0%,#03001e 50%,#09090e 100%);justify-content:center;align-items:center;height:100vh;padding:20px;display:flex}.auth-card{-webkit-backdrop-filter:blur(20px);border:1px solid var(--border-glass);width:100%;max-width:440px;box-shadow:var(--shadow-lg), 0 0 40px #818cf80d;background:#0f172a8c;border-radius:20px;flex-direction:column;gap:28px;padding:40px;animation:.4s ease-out fadeIn;display:flex}@keyframes fadeIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.auth-header{text-align:center;flex-direction:column;align-items:center;gap:12px;display:flex}.auth-icon{color:var(--primary);filter:drop-shadow(0 0 10px var(--primary-glow))}.auth-header h2{letter-spacing:-.02em;background:linear-gradient(90deg,#fff,#c7d2fe);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:22px;font-weight:700}.auth-header p{color:var(--text-secondary);margin-top:4px;font-size:13px;line-height:1.5}.input-group{flex-direction:column;display:flex}.input-group input{border:1px solid var(--border-glass);color:#fff;font-family:var(--font-base);background:#0000004d;border-radius:10px;outline:none;padding:14px 18px;font-size:15px;transition:all .2s}.input-group input:focus{border-color:var(--primary);background:#0006;box-shadow:0 0 0 3px #818cf833}.auth-error-msg{color:#f87171;background:#ef44441a;border:1px solid #ef444433;border-radius:10px;align-items:center;gap:8px;padding:12px 16px;font-size:13px;display:flex}.auth-submit-btn{background:linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);color:#fff;font-family:var(--font-base);cursor:pointer;border:none;border-radius:10px;justify-content:center;align-items:center;gap:10px;padding:14px;font-size:15px;font-weight:600;transition:all .2s;display:flex;box-shadow:0 4px 12px #6366f140}.auth-submit-btn:hover:not(:disabled){filter:brightness(1.05);transform:translateY(-1px);box-shadow:0 6px 16px #6366f159}.auth-submit-btn:active:not(:disabled){transform:translateY(0)}.auth-submit-btn:disabled{opacity:.6;cursor:not-allowed}.auth-loading-screen{background:var(--bg-deep);height:100vh;color:var(--text-secondary);flex-direction:column;justify-content:center;align-items:center;gap:16px;display:flex}@media (width<=768px){.sidebar{position:absolute;top:64px;bottom:0;left:0;box-shadow:10px 0 30px #00000080}.nav-overlay-btn{opacity:.3;width:20%}}