:root{color-scheme:dark;--bg: #0f1115;--panel: #171a21;--border: #262b36;--text: #e8e8ea;--muted: #8b90a0;--accent: #6c5ce7}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}#app{max-width:900px;margin:0 auto;padding:32px 20px 80px}header h1{margin:0;font-size:28px;letter-spacing:-.02em}.subtitle{margin:4px 0 8px;color:var(--muted);font-size:14px}.visitor-count{display:inline-flex;align-items:center;gap:7px;margin:0 0 28px;color:var(--muted);font-size:12px}.visitor-count[hidden]{display:none}.visitor-count-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px color-mix(in srgb,var(--accent) 65%,transparent)}.controls{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:20px}#add-form{display:flex;gap:8px}#note-input{background:var(--panel);border:1px solid var(--border);color:var(--text);padding:10px 12px;border-radius:8px;font-size:14px;width:200px}#note-input.error{border-color:#ff6b6b}#note-input:focus{outline:none;border-color:var(--accent)}button{background:var(--panel);border:1px solid var(--border);color:var(--text);padding:10px 14px;border-radius:8px;cursor:pointer;font-size:14px}button:hover{border-color:var(--accent)}#add-form button[type=submit]{background:var(--accent);border-color:var(--accent);color:#fff}.playback-controls{display:flex;gap:8px}.toolbar{display:flex;gap:24px;align-items:center;flex-wrap:wrap;margin-bottom:20px}.field{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}.field-label{font-weight:600;color:var(--text)}#tuning-mode{background:var(--panel);border:1px solid var(--border);color:var(--text);padding:8px 10px;border-radius:8px;font-size:13px}#tuning-mode:focus{outline:none;border-color:var(--accent)}.zoom-buttons{display:flex;align-items:center;gap:8px}.zoom-buttons button{padding:4px 10px;font-size:15px;line-height:1}#zoom-value{min-width:64px;text-align:center;font-variant-numeric:tabular-nums}#notes-list{display:flex;flex-direction:column;gap:6px;margin-bottom:20px}.note-row{display:grid;grid-template-columns:16px 70px 90px 70px 60px 36px 36px;align-items:center;gap:10px;background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:8px 12px;font-size:13px}.swatch{width:12px;height:12px;border-radius:50%;background:var(--note-color)}.note-freq,.note-ratio,.note-cents{color:var(--muted);font-variant-numeric:tabular-nums}.note-ratio{color:var(--text);font-weight:600}.play-btn,.remove-btn{padding:4px 8px;font-size:13px}#canvas-wrap{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:12px;overflow:hidden}#wave-canvas{width:100%;display:block}#empty-state{color:var(--muted);text-align:center;padding:40px 0;font-size:14px}@media (max-width: 600px){#app{padding:28px 20px 56px}#add-form{width:100%}#note-input{flex:1;min-width:0;width:auto}.note-row{grid-template-columns:16px minmax(56px,1fr) auto 34px 34px;grid-template-rows:auto auto;column-gap:8px;row-gap:3px;padding:10px 12px}.swatch{grid-column:1;grid-row:1}.note-label{grid-column:2;grid-row:1;font-weight:600}.note-freq{grid-column:3;grid-row:1}.note-ratio{grid-column:2;grid-row:2}.note-cents{grid-column:3;grid-row:2}.play-btn,.remove-btn{align-self:center;grid-row:1 / span 2;min-width:34px;padding:6px}.play-btn{grid-column:4}.remove-btn{grid-column:5}}