.song-list{max-width:1200px;margin:0 auto;padding:2rem}.song-list-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.song-list-header h2{margin:0;color:#333}.btn-new-song{padding:.75rem 1.5rem;background:#28a745;color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:1rem;font-weight:500;transition:all .2s}.btn-new-song:hover{background:#218838;transform:translateY(-1px);box-shadow:0 4px 8px #28a7454d}.song-list-controls{display:flex;gap:1rem;margin-bottom:1.5rem}.search-input{flex:1;padding:.75rem;border:1px solid #ddd;border-radius:6px;font-size:1rem;transition:border-color .2s}.search-input:focus{outline:none;border-color:#06c;box-shadow:0 0 0 3px #0066cc1a}.sort-select{padding:.75rem;border:1px solid #ddd;border-radius:6px;font-size:1rem;background:#fff;cursor:pointer;min-width:180px}.song-count{margin-bottom:1rem;color:#666;font-size:.9rem}.empty-state{text-align:center;padding:4rem 2rem;color:#999}.song-list-items{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem}.song-list-grouped{display:flex;flex-direction:column;gap:2rem}.artist-group{background:#fff;border-radius:8px;padding:1.5rem;box-shadow:0 2px 8px #0000001a}.artist-name{margin:0 0 1rem;color:#333;font-size:1.5rem;border-bottom:2px solid #eee;padding-bottom:.5rem}.artist-songs{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem}.song-card{background:#fff;border:1px solid #e0e0e0;border-radius:8px;padding:1.25rem;cursor:pointer;transition:all .2s;position:relative;display:flex;justify-content:space-between;align-items:flex-start}.song-card:hover{border-color:#06c;box-shadow:0 4px 12px #0066cc26;transform:translateY(-2px)}.song-card-content{flex:1;min-width:0}.song-card-title{margin:0 0 .5rem;font-size:1.1rem;color:#333;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.song-card-artist{margin:0 0 .5rem;color:#666;font-size:.95rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.song-card-key{display:inline-block;padding:.25rem .5rem;background:#f0f0f0;border-radius:4px;font-size:.85rem;color:#666;font-weight:500}.song-card-actions{position:relative;margin-left:.5rem}.song-menu-btn{background:transparent;border:none;font-size:1.5rem;color:#999;cursor:pointer;padding:.25rem .5rem;border-radius:4px;transition:all .2s;line-height:1}.song-menu-btn:hover{background:#f0f0f0;color:#333}.song-menu{position:absolute;top:100%;right:0;background:#fff;border:1px solid #ddd;border-radius:4px;box-shadow:0 4px 12px #00000026;z-index:10;min-width:120px;margin-top:.25rem}.song-menu button{display:block;width:100%;padding:.75rem 1rem;border:none;background:transparent;text-align:left;cursor:pointer;transition:background .2s}.song-menu button:hover{background:#f8f9fa}.menu-item-delete{color:#dc3545}.menu-item-delete:hover{background:#fff5f5!important}@media (max-width: 768px){.song-list{padding:1rem}.song-list-header{flex-direction:column;align-items:stretch;gap:1rem}.btn-new-song{width:100%}.song-list-controls{flex-direction:column}.sort-select{width:100%}.song-list-items,.artist-songs{grid-template-columns:1fr}.artist-group{padding:1rem}}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease-in-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-content{background:#fff;border-radius:12px;padding:32px;max-width:450px;width:90%;max-height:90vh;overflow-y:auto;position:relative;box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a;animation:slideUp .3s ease-out}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-close{position:absolute;top:16px;right:16px;background:none;border:none;font-size:28px;color:#6b7280;cursor:pointer;padding:4px;line-height:1;transition:color .2s}.modal-close:hover{color:#374151}.modal-header{margin-bottom:24px}.modal-header h2{font-size:24px;font-weight:600;color:#1f2937;margin:0 0 8px}.modal-header p{color:#6b7280;font-size:14px;margin:0}.modal-form{display:flex;flex-direction:column;gap:20px}.modal-form .form-group{display:flex;flex-direction:column;gap:6px}.modal-form label{font-size:14px;font-weight:500;color:#374151}.modal-form input{padding:10px 12px;border:1px solid #d1d5db;border-radius:6px;font-size:14px;transition:border-color .2s,box-shadow .2s}.modal-form input:focus{outline:none;border-color:#3b82f6;box-shadow:0 0 0 3px #3b82f61a}.modal-form input:disabled{background-color:#f3f4f6;cursor:not-allowed}.modal-actions{display:flex;gap:12px;margin-top:8px}.modal-actions .btn-secondary{flex:1;padding:10px 16px;border:1px solid #d1d5db;background:#fff;color:#374151;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s}.modal-actions .btn-secondary:hover:not(:disabled){background:#f9fafb;border-color:#9ca3af}.modal-actions .btn-primary{flex:1;padding:10px 16px;border:none;background:#3b82f6;color:#fff;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:background-color .2s}.modal-actions .btn-primary:hover:not(:disabled){background:#2563eb}.modal-actions button:disabled{opacity:.6;cursor:not-allowed}.modal-footer{text-align:center;padding-top:16px;border-top:1px solid #e5e7eb;margin-top:8px}.modal-footer p{font-size:14px;color:#6b7280;margin:0}.modal-footer .link{color:#3b82f6;text-decoration:none;font-weight:500}.modal-footer .link:hover{text-decoration:underline}.error-message{background-color:#fef2f2;border:1px solid #fecaca;color:#991b1b;padding:12px;border-radius:6px;font-size:14px}@media (max-width: 640px){.modal-content{padding:24px;width:95%}.modal-header h2{font-size:20px}.modal-actions{flex-direction:column}}.song-viewer{max-width:900px;margin:0 auto;padding:2rem;background:#fff;border-radius:8px;box-shadow:0 2px 8px #0000001a}.song-viewer.compact-mode{max-width:100%;width:100%;height:calc(100vh - 110px);overflow:hidden;margin:0;border-radius:0;padding:1rem 2rem;display:flex;flex-direction:column;box-shadow:none}.song-viewer.compact-mode .song-header{margin-bottom:.5rem;padding-bottom:.3rem;border-bottom:1px solid #eee;flex-shrink:0}.song-viewer.compact-mode .song-title{font-size:1.1rem;margin:0 0 .1rem}.song-viewer.compact-mode .song-artist{font-size:.85rem;margin:0}.song-viewer-empty{text-align:center;padding:4rem 2rem;color:#999}.song-header{margin-bottom:2rem;border-bottom:2px solid #eee;padding-bottom:1rem}.song-title{margin:0 0 .5rem;font-size:2rem;color:#333;font-weight:600}.song-artist{margin:0;font-size:1.25rem;color:#666;font-weight:400}.song-content{font-family:Consolas,Monaco,Courier New,monospace;font-size:14px;line-height:1.6;white-space:pre-wrap;overflow-x:auto}.song-content.compact-grid{display:grid;grid-auto-flow:column;grid-auto-columns:max-content;height:100%;overflow-x:auto;overflow-y:hidden;gap:2.5rem;align-content:start;flex:1}.song-column{display:flex;flex-direction:column;white-space:pre;height:100%;overflow:hidden;padding-right:1.25rem;border-right:1px solid #e0e0e0}.song-column:last-child{border-right:none}.song-content.compact-grid .song-line,.song-content.compact-grid .chord-line,.song-content.compact-grid .lyric-line{white-space:pre}.song-line{margin-bottom:.25rem}.section-marker{font-weight:700;color:#06c;margin:1.5rem 0 1rem;font-size:1.1em}.chord-lyric-block{margin-bottom:.5rem}.chord-line{color:#d9534f;font-weight:600;line-height:1.4;margin-bottom:-.2rem}.lyric-line{color:#333;line-height:1.4}.lyric-only{color:#333;margin:.25rem 0}.empty-line{height:1.4em}@media (max-width: 768px){.song-viewer{padding:1rem;margin:0;border-radius:0}.song-content{font-size:12px}.song-viewer.compact-mode{height:auto;overflow:visible;padding:1rem}.song-content.compact-grid{display:block;height:auto;overflow:visible;white-space:pre-wrap}.song-title{font-size:1.5rem}.song-artist{font-size:1rem}}@media print{.song-viewer{box-shadow:none;padding:0}.song-content{font-size:10pt}}.song-editor{max-width:1000px;margin:0 auto;padding:2rem}.editor-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:2px solid #eee}.editor-header h2{margin:0;color:#333}.editor-title-group{display:flex;flex-direction:column;gap:8px}.editor-user-badge{display:flex;align-items:center;gap:8px;font-size:14px}.user-label{color:#6b7280;font-weight:500}.user-name{font-weight:600;display:flex;align-items:center;gap:6px}.user-name.authenticated{color:#059669}.user-name.anonymous{color:#6b7280}.login-link{background:none;border:none;color:#3b82f6;font-size:13px;cursor:pointer;text-decoration:underline;padding:0;font-weight:500}.login-link:hover{color:#2563eb}.preview-toggle{padding:.5rem 1rem;background:#06c;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:.9rem;transition:background .2s}.preview-toggle:hover{background:#0052a3}.editor-form{background:#fff;padding:2rem;border-radius:8px;box-shadow:0 2px 8px #0000001a}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1rem}.form-group{display:flex;flex-direction:column;margin-bottom:1.5rem}.form-group label{font-weight:600;margin-bottom:.5rem;color:#333;display:flex;justify-content:space-between;align-items:center}.help-text{font-size:.85rem;font-weight:400;color:#666;font-style:italic}.form-group input,.form-group select,.form-group textarea{padding:.75rem;border:1px solid #ddd;border-radius:4px;font-size:1rem;font-family:inherit;transition:border-color .2s}.form-group textarea{font-family:Consolas,Monaco,Courier New,monospace;resize:vertical;line-height:1.5}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:#06c;box-shadow:0 0 0 3px #0066cc1a}.form-actions{display:flex;gap:1rem;margin-top:2rem;padding-top:1rem;border-top:1px solid #eee}.btn-primary,.btn-secondary{padding:.75rem 1.5rem;border:none;border-radius:4px;font-size:1rem;cursor:pointer;transition:all .2s;font-weight:500}.btn-primary{background:#28a745;color:#fff}.btn-primary:hover{background:#218838}.btn-secondary{background:#6c757d;color:#fff}.btn-secondary:hover{background:#5a6268}.preview-container{background:#fff;border-radius:8px;padding:1rem}@media (max-width: 768px){.song-editor,.editor-form{padding:1rem}.form-row{grid-template-columns:1fr}.form-actions{flex-direction:column}.btn-primary,.btn-secondary{width:100%}}.toolbar{background:#fff;border-bottom:1px solid #e0e0e0;box-shadow:0 2px 4px #0000000d;position:sticky;top:0;z-index:100;transition:box-shadow .2s}.toolbar:hover{box-shadow:0 2px 8px #0000001a}.toolbar-container{max-width:1200px;margin:0 auto;padding:.75rem 1.5rem;display:flex;align-items:center;gap:1.5rem;flex-wrap:wrap}.toolbar-section{display:flex;align-items:center;gap:.5rem}.toolbar-label{font-size:.85rem;color:#666;font-weight:500;white-space:nowrap}.toolbar-btn{padding:.4rem .75rem;background:#f5f5f5;border:1px solid #ddd;border-radius:4px;cursor:pointer;font-size:1rem;font-weight:600;transition:all .2s;min-width:36px;height:36px;display:flex;align-items:center;justify-content:center}.toolbar-btn:hover{background:#e8e8e8;border-color:#ccc}.toolbar-btn:active{transform:scale(.95)}.toolbar-btn.active{background:#06c;color:#fff;border-color:#06c}.toolbar-btn.active:hover{background:#0052a3;border-color:#0052a3}.transpose-btn{font-size:1.25rem}.transpose-display{font-family:Consolas,Monaco,monospace;font-size:1.1rem;font-weight:700;min-width:40px;text-align:center;padding:.4rem .75rem;background:#f8f9fa;border:1px solid #e0e0e0;border-radius:4px;color:#666}.transpose-display.positive{background:#d4edda;color:#28a745;border-color:#c3e6cb}.transpose-display.negative{background:#f8d7da;color:#dc3545;border-color:#f5c6cb}.toolbar-divider{width:1px;height:24px;background:#e0e0e0}.autoscroll-section{gap:.75rem}.speed-slider{width:100px;height:6px;border-radius:3px;background:#e0e0e0;outline:none;cursor:pointer}.speed-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:16px;height:16px;border-radius:50%;background:#06c;cursor:pointer;transition:all .2s}.speed-slider::-webkit-slider-thumb:hover{background:#0052a3;transform:scale(1.1)}.speed-slider::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:#06c;cursor:pointer;border:none;transition:all .2s}.speed-slider::-moz-range-thumb:hover{background:#0052a3;transform:scale(1.1)}.speed-display{font-size:.85rem;color:#666;font-weight:600;min-width:30px}.shortcuts-section{margin-left:auto}.shortcuts-text{font-size:.8rem;color:#999}.shortcuts-text kbd{display:inline-block;padding:.15rem .35rem;background:#f8f9fa;border:1px solid #ddd;border-radius:3px;font-family:monospace;font-size:.75rem;box-shadow:0 1px 2px #0000001a}.toolbar-section.autoscroll-section.disabled{opacity:.5;pointer-events:none}.toolbar-btn:disabled{opacity:.5;cursor:not-allowed}.speed-slider:disabled{opacity:.5;cursor:not-allowed}@media (max-width: 768px){.toolbar{display:flex}.toolbar-container{padding:.75rem 1rem;gap:1rem}.shortcuts-section{display:none}.speed-slider{width:80px}.layout-section{display:none}}@media (max-width: 1024px){.toolbar-container{padding:.75rem 1rem;gap:1rem}.shortcuts-section{display:none}.speed-slider{width:80px}}@media (max-width: 900px){.toolbar-label{display:none}}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.modal-content{background:#fff;border-radius:12px;max-width:450px;width:100%;max-height:90vh;overflow-y:auto;position:relative;box-shadow:0 20px 60px #0000004d}.modal-close{position:absolute;top:15px;right:15px;background:none;border:none;font-size:28px;cursor:pointer;color:#666;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .2s}.modal-close:hover{background-color:#f0f0f0;color:#333}.link-button{background:none;border:none;color:#ff6b35;cursor:pointer;font-weight:600;padding:0;text-decoration:underline}.link-button:hover{color:#e55a2b}.auth-layout{min-height:100vh;display:flex;flex-direction:column;background:linear-gradient(135deg,#fdfbf7,#fef5e7)}.auth-header{padding:2rem;text-align:center}.auth-header h1{font-size:2rem;color:#2c3e50;margin:0;font-weight:600;cursor:pointer}.auth-header h1:hover{color:#e67e22;transition:color .3s ease}.auth-container{flex:1;display:flex;align-items:center;justify-content:center;padding:2rem 1rem}.auth-card{background:#fff;border-radius:16px;box-shadow:0 4px 6px #00000012,0 2px 4px #0000000f;padding:3rem 2.5rem;width:100%;max-width:440px;animation:slideUp .4s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.auth-card h2{font-size:1.75rem;color:#2c3e50;margin:0 0 .5rem;font-weight:600}.auth-card p{color:#7f8c8d;margin:0 0 2rem;font-size:.95rem}.auth-form{display:flex;flex-direction:column;gap:1.5rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-size:.9rem;font-weight:500;color:#34495e}.form-group input{padding:.875rem 1rem;border:2px solid #e8e8e8;border-radius:8px;font-size:1rem;transition:all .2s ease;background:#fff}.form-group input:focus{outline:none;border-color:#e67e22;box-shadow:0 0 0 3px #e67e221a}.form-group input::placeholder{color:#bdc3c7}.form-group input.error{border-color:#e74c3c}.form-group input.error:focus{box-shadow:0 0 0 3px #e74c3c1a}.error-message{color:#e74c3c;font-size:.875rem;margin-top:-.5rem;display:flex;align-items:center;gap:.25rem}.success-message{color:#27ae60;font-size:.875rem;padding:.75rem;background:#d5f4e6;border-radius:6px;margin-bottom:1rem}.password-strength{height:4px;background:#ecf0f1;border-radius:2px;overflow:hidden;margin-top:-.5rem}.password-strength-bar{height:100%;transition:all .3s ease}.password-strength-bar.weak{width:33%;background:#e74c3c}.password-strength-bar.medium{width:66%;background:#f39c12}.password-strength-bar.strong{width:100%;background:#27ae60}.auth-button{padding:.875rem 1.5rem;background:linear-gradient(135deg,#e67e22,#d35400);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease;box-shadow:0 2px 4px #e67e2233}.auth-button:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 8px #e67e224d}.auth-button:active:not(:disabled){transform:translateY(0)}.auth-button:disabled{opacity:.6;cursor:not-allowed}.auth-button-secondary{padding:.875rem 1.5rem;background:#fff;color:#e67e22;border:2px solid #e67e22;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.auth-button-secondary:hover:not(:disabled){background:#fef5e7}.auth-button-secondary:disabled{opacity:.6;cursor:not-allowed}.auth-link{text-align:center;margin-top:1.5rem;font-size:.95rem;color:#7f8c8d}.auth-link a{color:#e67e22;text-decoration:none;font-weight:500;transition:color .2s ease}.auth-link a:hover{color:#d35400;text-decoration:underline}.verification-code-input{display:flex;gap:.5rem;justify-content:center;margin:1rem 0}.verification-code-input input{width:3rem;height:3.5rem;text-align:center;font-size:1.5rem;font-weight:600;border:2px solid #e8e8e8;border-radius:8px;transition:all .2s ease}.verification-code-input input:focus{outline:none;border-color:#e67e22;box-shadow:0 0 0 3px #e67e221a}.resend-code{text-align:center;margin-top:1rem;font-size:.9rem}.resend-code button{background:none;border:none;color:#e67e22;cursor:pointer;text-decoration:underline;font-size:.9rem;padding:0}.resend-code button:hover{color:#d35400}.resend-code button:disabled{color:#bdc3c7;cursor:not-allowed}.loading-spinner{display:inline-block;width:1rem;height:1rem;border:2px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin .6s linear infinite;margin-left:.5rem}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 640px){.auth-card{padding:2rem 1.5rem}.auth-header h1,.auth-card h2{font-size:1.5rem}.verification-code-input input{width:2.5rem;height:3rem;font-size:1.25rem}}.user-menu{position:relative}.user-menu-button{background:none;border:none;padding:0;cursor:pointer;transition:transform .2s}.user-menu-button:hover{transform:scale(1.05)}.user-menu-button:active{transform:scale(.95)}.user-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px;box-shadow:0 2px 4px #0000001a;transition:box-shadow .2s}.user-menu-button:hover .user-avatar{box-shadow:0 4px 8px #00000026}.user-menu-dropdown{position:absolute;top:calc(100% + 8px);right:0;background:#fff;border-radius:8px;box-shadow:0 10px 25px #0000001a,0 0 1px #0000001a;min-width:200px;overflow:hidden;z-index:100;animation:dropdownSlide .2s ease-out}@keyframes dropdownSlide{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.user-menu-header{padding:12px 16px;background:#f9fafb}.user-email{font-size:14px;color:#374151;font-weight:500;word-break:break-word}.user-menu-divider{height:1px;background:#e5e7eb}.user-menu-item{width:100%;padding:12px 16px;background:none;border:none;text-align:left;cursor:pointer;font-size:14px;color:#374151;transition:background-color .15s;display:flex;align-items:center;gap:8px}.user-menu-item:hover{background:#f3f4f6}.user-menu-item:active{background:#e5e7eb}.user-menu-item span{flex:1}@media (max-width: 640px){.user-avatar{width:36px;height:36px;font-size:13px}.user-menu-dropdown{min-width:180px}}*{box-sizing:border-box}.app{min-height:100vh;background:#f5f5f5}.home-page{max-width:1200px;margin:0 auto;padding:2rem}.home-hero{background:#fff;border-radius:12px;padding:3rem;text-align:center;box-shadow:0 4px 16px #0000001a;margin-bottom:3rem}.home-hero h1{font-size:clamp(2rem,5vw,3.5rem);margin:0 0 1rem;background:linear-gradient(135deg,#06c,#00a8ff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.tagline{font-size:1.5rem;color:#666;margin:0 0 1rem}.description{font-size:1.1rem;color:#777;margin:0 0 2rem;line-height:1.6}.storage-options{max-width:600px;margin:2rem auto;text-align:left}.storage-options h3{margin:0 0 1rem;color:#333}.storage-option{display:flex;align-items:flex-start;gap:1rem;padding:1rem;border:2px solid #e0e0e0;border-radius:8px;margin-bottom:1rem;cursor:pointer;transition:all .2s}.storage-option:hover:not(.disabled){border-color:#06c;background:#f8f9fa}.storage-option.disabled{opacity:.5;cursor:not-allowed}.storage-option input[type=radio]{margin-top:.25rem;cursor:pointer}.storage-option div{display:flex;flex-direction:column;gap:.25rem}.storage-option strong{color:#333;font-size:1.1rem}.storage-option span{color:#666;font-size:.9rem}.btn-get-started{padding:1rem 3rem;font-size:1.25rem;background:#06c;color:#fff;border:none;border-radius:8px;cursor:pointer;font-weight:600;transition:all .2s;margin-top:1rem}.btn-get-started:hover{background:#0052a3;transform:translateY(-2px);box-shadow:0 8px 24px #0066cc4d}.home-features{background:#fff;border-radius:12px;padding:3rem;box-shadow:0 4px 16px #0000001a}.home-features h2{text-align:center;margin:0 0 2rem;color:#333;font-size:2rem}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem}.feature{text-align:center;padding:1.5rem}.feature h3{margin:0 0 .5rem;color:#333;font-size:1.5rem}.feature p{margin:0;color:#666;line-height:1.6}.app-header{background:#fff;border-bottom:1px solid #e0e0e0;padding:1rem 2rem;box-shadow:0 2px 4px #0000000d;display:flex;justify-content:space-between;align-items:center}.app-header h1{margin:0;color:#06c;cursor:pointer;font-size:1.75rem}.app-header h1:hover{color:#0052a3}.header-actions{display:flex;gap:1rem}.header-user-info{display:flex;align-items:center;gap:1rem}.user-email{color:#666;font-size:.9rem}.btn-signin,.btn-signup,.btn-signout,.btn-edit,.btn-back{padding:.5rem 1rem;border:none;border-radius:4px;cursor:pointer;font-size:.9rem;transition:all .2s}.btn-edit{background:#06c;color:#fff}.btn-edit:hover{background:#0052a3}.btn-back{background:#f8f9fa;color:#333;border:1px solid #ddd}.btn-back:hover{background:#e9ecef}.view-song-container{max-width:1000px;margin:2rem auto;padding:0 2rem}.view-song-container.compact-mode{max-width:100%;margin:0;padding:0}.loading{display:flex;justify-content:center;align-items:center;min-height:60vh;font-size:1.25rem;color:#666}@media (max-width: 768px){.home-page{padding:1rem}.home-hero{padding:2rem 1rem}.home-hero h1{font-size:2.5rem}.tagline{font-size:1.2rem}.description{font-size:1rem}.home-features{padding:2rem 1rem}.features-grid{grid-template-columns:1fr;gap:1.5rem}.app-header{padding:1rem;flex-direction:column;align-items:flex-start;gap:1rem}.header-actions{width:100%}.btn-edit,.btn-back{flex:1}.view-song-container{padding:0 1rem}.view-song-container.compact-mode{padding:0}}.btn-signin{background:transparent!important;color:#06c!important;border:1px solid #0066cc!important}.btn-signin:hover,.btn-signup{background:#06c!important;color:#fff!important}.btn-signup:hover{background:#0052a3!important}.btn-signout{background:#f5f5f5!important;color:#666!important}.btn-signout:hover{background:#e0e0e0!important;color:#333!important}.user-status{padding:12px 20px;background:#f8f9fa;border-radius:8px;font-size:14px;color:#555;margin-bottom:20px}.logged-in-as strong{color:#2c3e50}.anonymous-user{color:#999}.anonymous-user strong{color:#666}.inline-login-btn{background:none;border:none;color:#ff6b35;cursor:pointer;font-weight:600;text-decoration:underline;padding:0}.inline-login-btn:hover{color:#e55a2b}.song-editor-header{max-width:800px;margin:0 auto;padding:20px}:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;color-scheme:light;color:#333;background-color:#f5f5f5;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}#root{min-height:100vh}a{font-weight:500;color:#06c;text-decoration:none;transition:color .2s}a:hover{color:#0052a3}button{font-family:inherit;cursor:pointer}button:focus-visible{outline:2px solid #0066cc;outline-offset:2px}input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid #0066cc;outline-offset:2px}::-webkit-scrollbar{width:12px;height:12px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:#888;border-radius:6px}::-webkit-scrollbar-thumb:hover{background:#555}@media print{body{background:#fff}.app-header,.transposer,button{display:none}}