:root{--primary: #6750A4;--primary-light: #EADDFF;--primary-dark: #4F378B;--on-primary: #FFFFFF;--accent: #FF6D00;--accent-light: #FFF3E0;--surface: #FFFBFE;--surface-1: #F7F2FA;--surface-2: #EDE7F6;--border: #CAC4D0;--border-light: #E8DEF8;--text: #1C1B1F;--text-secondary: #49454F;--text-muted: #79747E;--error: #B3261E;--error-light: #F9DEDC;--success: #2E7D32;--sidebar-w: 272px;--topbar-h: 56px;--radius: 10px;--radius-sm: 6px;--radius-lg: 16px;--shadow-sm: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);--shadow: 0 4px 12px rgba(0,0,0,.12);--shadow-lg: 0 8px 24px rgba(0,0,0,.18);font-family:Inter,system-ui,-apple-system,sans-serif;font-size:14px;color:var(--text);background:var(--surface)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}button{cursor:pointer;font-family:inherit;font-size:inherit}input,textarea{font-family:inherit;font-size:inherit}a{color:var(--primary)}.spinner{width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.splash{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:20px;background:var(--surface)}.splash-logo{font-size:48px}.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 20px;background:var(--primary);color:var(--on-primary);border:none;border-radius:var(--radius-sm);font-weight:600;font-size:14px;transition:background .15s,box-shadow .15s}.btn-primary:hover:not(:disabled){background:var(--primary-dark);box-shadow:var(--shadow-sm)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-primary.btn-sm{padding:5px 12px;font-size:13px}.btn-primary.btn-full{width:100%}.btn-ghost{padding:6px 14px;background:transparent;color:var(--text-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);font-weight:500;transition:background .15s,color .15s}.btn-ghost:hover{background:var(--surface-1);color:var(--text)}.btn-danger{padding:8px 20px;background:var(--error);color:#fff;border:none;border-radius:var(--radius-sm);font-weight:600;transition:opacity .15s}.btn-danger:hover{opacity:.88}.btn-danger-ghost{padding:6px 14px;background:transparent;color:var(--error);border:1px solid var(--error);border-radius:var(--radius-sm);font-weight:500;transition:background .15s}.btn-danger-ghost:hover{background:var(--error-light)}.icon-btn{width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;background:transparent;color:var(--text-secondary);border:none;border-radius:var(--radius-sm);font-size:14px;transition:background .12s,color .12s}.icon-btn:hover:not(:disabled){background:var(--surface-2);color:var(--text)}.icon-btn:disabled{opacity:.35;cursor:not-allowed}.icon-btn.danger:hover:not(:disabled){background:var(--error-light);color:var(--error)}.field{display:flex;flex-direction:column;gap:5px}.field label{font-weight:600;font-size:13px;color:var(--text-secondary)}.field input{padding:9px 12px;border:1.5px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);transition:border-color .15s,box-shadow .15s;outline:none}.field input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}.field-hint{font-size:12px;color:var(--text-muted)}.error-box{padding:10px 14px;background:var(--error-light);color:var(--error);border:1px solid #F2B8B5;border-radius:var(--radius-sm);font-size:13px}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#f3eef9,#ede7f6);padding:24px}.login-card{width:100%;max-width:400px;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:40px 36px;display:flex;flex-direction:column;gap:24px}.login-brand{text-align:center}.brand-icon{font-size:48px;display:block;margin-bottom:8px}.login-brand h1{font-size:24px;font-weight:700;color:var(--primary)}.brand-sub{font-size:14px;color:var(--text-muted);margin-top:2px}.login-card form{display:flex;flex-direction:column;gap:16px}.app-layout{display:flex;flex-direction:column;height:100vh;overflow:hidden}.topbar{height:var(--topbar-h);display:flex;align-items:center;justify-content:space-between;padding:0 20px;background:var(--primary);color:var(--on-primary);box-shadow:0 2px 8px #0000002e;z-index:10;flex-shrink:0}.topbar-left{display:flex;align-items:center;gap:12px}.topbar-right{display:flex;align-items:center;gap:10px}.topbar-logo{font-size:17px;font-weight:700;letter-spacing:.3px}.topbar-church{background:#ffffff2e;color:#fff;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600}.topbar-user{font-size:13px;opacity:.85}.role-badge{background:var(--accent);color:#fff;padding:2px 8px;border-radius:20px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.topbar .btn-ghost{border-color:#fff6;color:#ffffffe6;font-size:13px}.topbar .btn-ghost:hover{background:#ffffff26;color:#fff;border-color:#fff9}.app-body{flex:1;display:flex;overflow:hidden}.sidebar{width:var(--sidebar-w);flex-shrink:0;display:flex;flex-direction:column;background:var(--surface-1);border-right:1px solid var(--border-light);overflow:hidden}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:14px 14px 10px}.sidebar-title{font-weight:700;font-size:15px;display:flex;align-items:center;gap:6px}.count-badge{background:var(--primary-light);color:var(--primary);padding:1px 7px;border-radius:20px;font-size:11px;font-weight:700}.sidebar-search{padding:0 10px 10px}.sidebar-search input{width:100%;padding:7px 10px;border:1.5px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);outline:none;font-size:13px;transition:border-color .15s}.sidebar-search input:focus{border-color:var(--primary)}.song-list{flex:1;overflow-y:auto;padding:4px 6px 12px}.list-state{padding:20px;text-align:center;color:var(--text-muted);font-size:13px}.song-item{width:100%;display:flex;flex-direction:column;align-items:flex-start;padding:9px 10px;border:none;border-radius:var(--radius-sm);background:transparent;text-align:left;gap:2px;transition:background .12s;cursor:pointer}.song-item:hover{background:var(--surface-2)}.song-item.selected{background:var(--primary-light)}.song-item.selected .song-item-name{color:var(--primary)}.song-item-name{font-weight:600;font-size:14px;color:var(--text);line-height:1.3}.song-item-meta{font-size:12px;color:var(--text-muted)}.main-content{flex:1;overflow-y:auto;background:var(--surface)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:12px;text-align:center;padding:40px}.empty-icon{font-size:48px}.empty-state h2{font-size:20px;font-weight:700}.empty-state p{color:var(--text-muted);font-size:14px}.song-editor{max-width:860px;margin:0 auto;padding:24px 32px 80px}.editor-loading{display:flex;align-items:center;justify-content:center;gap:12px;height:200px;color:var(--text-muted)}.editor-header{display:flex;align-items:center;gap:12px;margin-bottom:20px;flex-wrap:wrap}.song-name-input{flex:1;min-width:200px;font-size:22px;font-weight:700;color:var(--text);border:none;border-bottom:2px solid var(--border);background:transparent;padding:6px 2px;outline:none;transition:border-color .15s}.song-name-input:focus{border-bottom-color:var(--primary)}.song-name-input::placeholder{color:var(--text-muted);font-weight:400}.editor-actions{display:flex;align-items:center;gap:8px}.unsaved-dot{font-size:20px;color:var(--accent);line-height:1}.error-bar{padding:10px 14px;margin-bottom:16px;background:var(--error-light);color:var(--error);border-left:4px solid var(--error);border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-size:13px}.key-section{display:flex;flex-wrap:wrap;gap:16px;padding:16px;margin-bottom:16px;background:var(--surface-1);border:1px solid var(--border-light);border-radius:var(--radius)}.key-group-label{font-size:11px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.8px;margin-bottom:8px}.key-chips{display:flex;flex-wrap:wrap;gap:6px}.key-chip{min-width:38px;padding:5px 8px;border:1.5px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text-secondary);font-weight:600;font-size:13px;font-family:JetBrains Mono,monospace;transition:all .12s}.key-chip:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}.key-chip.selected{background:var(--primary);color:var(--on-primary);border-color:var(--primary)}.quality-chips{display:flex;gap:6px}.quality-chip{padding:5px 14px;border:1.5px solid var(--border);border-radius:20px;background:var(--surface);color:var(--text-secondary);font-weight:600;font-size:13px;transition:all .12s}.quality-chip:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}.quality-chip.selected{background:var(--primary);color:var(--on-primary);border-color:var(--primary)}.scale-reference{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:10px 14px;margin-bottom:24px;background:var(--accent-light);border:1px solid #FFCC80;border-radius:var(--radius)}.scale-reference-title{font-size:12px;font-weight:700;color:var(--accent);flex-shrink:0}.scale-pills{display:flex;flex-wrap:wrap;gap:6px}.scale-pill{display:inline-flex;align-items:center;gap:4px;padding:3px 8px 3px 6px;background:#fff;border:1px solid #FFCC80;border-radius:20px;font-size:12px}.scale-degree{font-weight:700;color:var(--accent);font-family:JetBrains Mono,monospace}.scale-chord{color:var(--text-secondary)}.parts-section{display:flex;flex-direction:column;gap:16px}.parts-heading{font-size:16px;font-weight:700;color:var(--text)}.no-parts-hint{padding:20px;text-align:center;color:var(--text-muted);font-size:13px;font-style:italic;border:2px dashed var(--border);border-radius:var(--radius)}.add-part-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px;background:var(--surface-1);border:1px dashed var(--border);border-radius:var(--radius)}.add-part-label{font-size:12px;font-weight:600;color:var(--text-muted)}.add-part-btn{padding:5px 12px;border:1px solid var(--border);border-radius:20px;background:var(--surface);color:var(--text-secondary);font-size:13px;font-weight:500;transition:all .12s}.add-part-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}.part-card{border:1px solid var(--border-light);border-radius:var(--radius);overflow:hidden;background:var(--surface);box-shadow:var(--shadow-sm)}.part-header{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;background:var(--surface-1);border-bottom:3px solid var(--part-color, #37474F)}.part-header-left{display:flex;align-items:center;gap:14px}.part-header-right{display:flex;align-items:center;gap:4px}.part-label{font-weight:700;font-size:14px;font-family:JetBrains Mono,monospace}.repeat-wrap{display:flex;align-items:center;gap:5px;font-size:12px;color:var(--text-muted);cursor:default}.repeat-input{width:42px;padding:3px 6px;text-align:center;border:1.5px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);font-weight:600;outline:none}.repeat-input:focus{border-color:var(--primary)}.degree-buttons{display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding:8px 12px;background:var(--surface-1);border-bottom:1px solid var(--border-light)}.degree-label{font-size:11px;font-weight:600;color:var(--text-muted);margin-right:2px}.degree-btn{padding:3px 10px;border:1.5px solid var(--primary-light);border-radius:20px;background:var(--primary-light);color:var(--primary);font-family:JetBrains Mono,monospace;font-size:12px;font-weight:700;transition:all .12s}.degree-btn:hover{background:var(--primary);color:var(--on-primary);border-color:var(--primary)}.degree-btn:active{transform:scale(.95)}.lyrics-textarea{width:100%;display:block;padding:12px 14px;border:none;resize:vertical;min-height:120px;background:#fff;color:var(--text);font-family:JetBrains Mono,monospace;font-size:14px;line-height:1.7;outline:none}.lyrics-textarea::placeholder{color:var(--text-muted);font-style:italic;font-family:Inter,sans-serif}.lyrics-textarea:focus{background:#fafafa}.lyrics-preview{border-top:1px solid var(--border-light);background:var(--surface-1)}.preview-label{padding:6px 14px;font-size:11px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.6px;border-bottom:1px solid var(--border-light)}.preview-content{padding:12px 14px}.preview-blank-line{height:1.4em}.preview-line{display:flex;flex-wrap:wrap;align-items:flex-end;margin-bottom:6px}.preview-seg{display:inline-flex;flex-direction:column;align-items:flex-start;white-space:pre}.preview-chord{font-size:12px;font-weight:700;color:var(--accent);font-family:JetBrains Mono,monospace;min-height:18px;line-height:1.4}.preview-chord-placeholder{min-height:18px;display:block}.preview-text{font-size:15px;color:var(--text);line-height:1.5}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;background:#00000073;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);display:flex;align-items:center;justify-content:center;padding:24px}.modal{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:32px;max-width:420px;width:100%;display:flex;flex-direction:column;gap:12px}.modal h3{font-size:18px;font-weight:700}.modal p{color:var(--text-secondary);font-size:14px;line-height:1.5}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:8px}.song-detail{max-width:860px;margin:0 auto;padding:24px 32px 80px}.detail-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap}.detail-title-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;flex:1}.detail-title{font-size:26px;font-weight:800;color:var(--text);line-height:1.2}.detail-key-badge{background:var(--primary-light);color:var(--primary);padding:4px 12px;border-radius:20px;font-size:13px;font-weight:700;font-family:JetBrains Mono,monospace;white-space:nowrap;flex-shrink:0}.detail-parts{display:flex;flex-direction:column;gap:16px}.detail-part{border:1px solid var(--border-light);border-radius:var(--radius);overflow:hidden;background:var(--surface);box-shadow:var(--shadow-sm)}.detail-part-header{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--surface-1);border-bottom:3px solid var(--part-color, #37474F)}.detail-part-label{font-weight:700;font-size:14px;font-family:JetBrains Mono,monospace}.detail-repeat{font-size:12px;color:var(--text-muted);font-weight:600}.detail-lyrics{padding:2px 0}.detail-preview-content{padding:14px 16px}.detail-preview-content .preview-chord{font-size:13px}.detail-preview-content .preview-text{font-size:17px}.detail-preview-content .preview-line{margin-bottom:8px}.song-list::-webkit-scrollbar,.main-content::-webkit-scrollbar{width:6px}.song-list::-webkit-scrollbar-track,.main-content::-webkit-scrollbar-track{background:transparent}.song-list::-webkit-scrollbar-thumb,.main-content::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.song-list::-webkit-scrollbar-thumb:hover,.main-content::-webkit-scrollbar-thumb:hover{background:var(--primary)}