*{margin:0;padding:0;box-sizing:border-box}:root{--bg: #141420;--bg-card: #1c1b2e;--bg-input: #232140;--border: #2e2b4a;--border-interactive: #4a3d6e;--accent: #9b7dd4;--accent-hover: #8466be;--accent-bright: #b59bf5;--text: #e8e5f0;--text-white: #ffffff;--text-muted: #8b87a0;--text-dim: #6b6780;--sheet-bg: #000;--sheet-drag: #111;--sheet-invert: invert(.9);--divider: #555;--google-bg: #fff;--google-bg-hover: #f5f5f5;--google-border: #ddd;--google-text: #333}[data-theme=light]{--bg: #f5f3f8;--bg-card: #ffffff;--bg-input: #eeeaf4;--border: #d8d4e0;--border-interactive: #b5aec6;--accent: #7b5fbf;--accent-hover: #6a4fad;--accent-bright: #9b7dd4;--text: #1a1820;--text-white: #ffffff;--text-muted: #6b6780;--text-dim: #9590a8;--sheet-bg: #f5f5f0;--sheet-drag: #e8e8e0;--sheet-invert: none;--divider: #c0bcc8;--google-bg: #fff;--google-bg-hover: #f0edf5;--google-border: #d0cdd8;--google-text: #333}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);height:100vh;overflow:hidden}#app{display:flex;flex-direction:column;height:100vh}#app-header{background:var(--bg-card);padding:12px 24px;border-bottom:1px solid var(--border)}.header-inner{display:flex;align-items:center;justify-content:space-between}.header-brand{font-size:1.1rem;font-weight:600;color:var(--accent);text-decoration:none;display:flex;align-items:center;gap:8px}.header-logo{height:24px;width:auto}.header-user{display:flex;align-items:center;gap:12px}.header-email{font-size:.8rem;color:var(--text-muted)}#app-content{flex:1;display:flex;flex-direction:column;min-height:0;overflow:hidden}.theme-toggle{background:none!important;border:none!important;padding:4px!important;font-size:1.2rem;cursor:pointer;color:var(--text-muted);transition:color .2s;line-height:1}.theme-toggle:hover{color:var(--accent)!important;background:none!important}.login-page{flex:1;display:flex;align-items:center;justify-content:center;padding:40px 20px;overflow-y:auto}.login-card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:40px;width:100%;max-width:400px}.login-card h1{color:var(--accent);font-size:1.5rem;margin-bottom:8px}.login-subtitle{color:var(--text-white);font-size:.875rem;margin-bottom:24px}[data-theme=light] .login-subtitle{color:var(--text)}.login-error{background:#e9456026;border:1px solid #e94560;color:#e94560;padding:10px 14px;border-radius:6px;font-size:.85rem;margin-bottom:16px}.login-success{background:#2d6a4f33;border:1px solid #2d6a4f;color:#52b788;padding:10px 14px;border-radius:6px;font-size:.85rem;margin-bottom:16px}#auth-form{display:flex;flex-direction:column;gap:12px}#auth-form input{padding:10px 14px;background:var(--bg-input);border:1px solid var(--border-interactive);border-radius:6px;color:var(--text);font-size:.875rem;outline:none}#auth-form input:focus{border-color:var(--accent)}#auth-form input::placeholder{color:var(--text-dim)}#auth-form button[type=submit]{padding:10px;background:var(--accent);border:none;border-radius:6px;color:#fff;font-size:.875rem;font-weight:600;cursor:pointer}#auth-form button:hover{background:var(--accent-hover)}.login-divider{display:flex;align-items:center;margin:20px 0;color:var(--divider);font-size:.8rem}.login-divider:before,.login-divider:after{content:"";flex:1;border-bottom:1px solid var(--border)}.login-divider span{padding:0 12px}.google-btn{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:10px;background:var(--google-bg);border:1px solid var(--google-border);border-radius:6px;color:var(--google-text);font-size:.875rem;font-weight:500;text-decoration:none;cursor:pointer}.google-btn:hover{background:var(--google-bg-hover)}.login-toggle{text-align:center;margin-top:20px;font-size:.8rem;color:var(--text-muted)}.login-toggle a{color:var(--accent);text-decoration:none}.library-page{padding:32px 24px;max-width:1000px;margin:0 auto;width:100%;flex:1;overflow-y:auto}.library-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.library-header h2{font-size:1.25rem;color:var(--text)}.empty-state{text-align:center;color:var(--text-dim);padding:60px 20px;font-size:.95rem}.score-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.score-card{background:var(--bg-card);border:1px solid var(--border);border-radius:8px;overflow:hidden;transition:border-color .2s}.score-card:hover{border-color:var(--border-interactive)}.score-card-body{padding:20px}.score-card h3{font-size:1rem;color:var(--text);margin-bottom:4px}.score-date{font-size:.8rem;color:var(--text-dim)}.score-card-actions{display:flex;border-top:1px solid var(--border)}.score-card-actions button{flex:1;padding:10px;border:none;border-radius:0;font-size:.8rem;cursor:pointer}.btn-view{background:var(--bg-input);color:var(--text);border-right:1px solid var(--border)!important}.btn-view:hover{background:var(--border-interactive)}.btn-delete{background:transparent;color:#e94560}.btn-delete:hover{background:#e945601a}.btn-primary{padding:8px 20px;background:var(--accent);border:none;border-radius:6px;color:#fff;font-size:.875rem;font-weight:600;cursor:pointer}.btn-primary:hover{background:var(--accent-hover)}.viewer-page{display:flex;flex-direction:column;flex:1;min-height:0}.viewer-toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;padding:12px 24px;background:var(--bg-card);border-bottom:1px solid var(--border)}.viewer-title{font-size:1rem;font-weight:600;color:var(--text);flex:1}.viewer-main{display:flex;flex:1;min-height:0;overflow:hidden}.save-bar{display:flex;gap:12px;align-items:center;padding:12px 24px;background:var(--bg-input);border-bottom:1px solid var(--border-interactive)}.save-bar input{flex:1;padding:8px 12px;background:var(--bg-card);border:1px solid var(--border-interactive);border-radius:6px;color:var(--text);font-size:.875rem;outline:none}.save-bar input:focus{border-color:var(--accent)}.save-bar input::placeholder{color:var(--text-dim)}.input-group{display:flex;align-items:center;gap:8px}.url-group{flex:1;min-width:200px}.file-label{display:inline-flex;align-items:center;padding:8px 16px;background:var(--bg-input);border:1px solid var(--border-interactive);border-radius:6px;cursor:pointer;font-size:.875rem;color:var(--text);transition:background .2s}.file-label:hover{background:var(--border-interactive)}.file-label input[type=file]{display:none}#url-input{flex:1;padding:8px 12px;background:var(--bg-input);border:1px solid var(--border-interactive);border-radius:6px;color:var(--text);font-size:.875rem;outline:none}#url-input:focus{border-color:var(--accent)}#url-input::placeholder{color:var(--text-dim)}button{padding:8px 16px;background:var(--bg-input);border:1px solid var(--border-interactive);border-radius:6px;color:var(--text);font-size:.875rem;cursor:pointer;transition:background .2s}button:hover{background:var(--border-interactive)}button:disabled{opacity:.5;cursor:default}.btn-audio{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}.btn-audio:hover{background:var(--accent-hover)}.btn-audio.audio-ready{background:#2d6a4f;border-color:#2d6a4f}#sheet-music{flex:1;overflow-y:auto;padding:20px;background:var(--sheet-bg)}#sheet-music.drag-over{background:var(--sheet-drag);outline:3px dashed var(--border-interactive);outline-offset:-10px}#sheet-music .placeholder,#sheet-music .loading,.loading{color:var(--text-muted);text-align:center;padding:80px 20px;font-size:1rem}#sheet-music .error,.error{color:#c0392b;text-align:center;padding:80px 20px}.sheet-page{margin-bottom:10px;filter:invert(1)}[data-theme=light] .sheet-page{filter:none}.sheet-page svg{width:100%;height:auto}#sheet-music g.note{cursor:pointer}#sheet-music g.note:hover use{fill:#888}#sheet-music g.note.selected use{fill:var(--accent-bright)}.note-label{pointer-events:none;user-select:none}#sidebar{width:320px;background:var(--bg-card);border-left:1px solid var(--border);display:flex;flex-direction:column;overflow-y:auto}#info-panel{padding:20px;border-bottom:1px solid var(--border)}#info-panel h2{font-size:.875rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:12px}#info-panel .placeholder{color:var(--text-dim);font-size:.875rem}.note-detail .note-name{display:block;font-size:2.5rem;font-weight:700;color:var(--accent);margin-bottom:12px}.note-detail table{width:100%;border-collapse:collapse}.note-detail td{padding:6px 0;font-size:.875rem;color:var(--text);border-bottom:1px solid var(--border)}.note-detail td:first-child{color:var(--text-muted);width:40%}#piano-container{padding:20px}#piano-container h2{font-size:.875rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:12px}.piano-keyboard{width:100%;height:auto}.piano-key.white{fill:#fff;stroke:#ccc;stroke-width:.5}.piano-key.black{fill:#222;stroke:#000;stroke-width:.5}.piano-key.active{fill:var(--accent-bright)!important}.piano-key-label{font-size:7px;fill:#aaa;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;user-select:none}@media(max-width:800px){.viewer-main{flex-direction:column}#sidebar{width:100%;border-left:none;border-top:1px solid var(--border)}.score-grid{grid-template-columns:1fr}}