:root{--bg: #1e1f24;--panel: #16171b;--border: #2c2e36;--text: #d7dae2;--text-dim: #9aa0ad;--accent: #5b8def;--rec: #e5484d;color-scheme:dark}*{box-sizing:border-box}html,body,#root{margin:0;height:100%;width:100%}body{font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--text);overflow:hidden}.app{display:flex;flex-direction:column;height:100%}.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:6px 10px;background:var(--panel);border-bottom:1px solid var(--border);-webkit-user-select:none;user-select:none}.toolbar,.transport{display:flex;align-items:center;gap:10px}.toolbar__group{display:flex;align-items:center;gap:4px;padding-right:10px;border-right:1px solid var(--border)}.toolbar__group:last-child{border-right:none}.tool-btn{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border:1px solid transparent;border-radius:6px;background:transparent;color:var(--text-dim);cursor:pointer;transition:background .12s,color .12s,border-color .12s}.tool-btn:hover{background:#23252b;color:var(--text)}.tool-btn--active{background:#5b8def2e;border-color:var(--accent);color:var(--accent)}.tool-btn--text{width:auto;padding:0 8px;font-size:12px;font-weight:600}.toolbar__select{height:30px;background:#23252b;color:var(--text);border:1px solid var(--border);border-radius:6px;padding:0 6px;font-size:12px}.toolbar__filename{max-width:140px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px;color:var(--text-dim, #9aa0ad);padding:0 4px}.transport__bpm{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--text-dim)}.transport__bpm input{width:56px;height:30px;background:#23252b;color:var(--text);border:1px solid var(--border);border-radius:6px;padding:0 6px;font-size:12px}.transport__pos{font-size:12px;color:var(--text-dim);min-width:48px}.editor{display:flex;flex:1;min-height:0}.piano-roll{position:relative;flex:1;min-width:0;height:100%}.piano-roll__canvas{display:block;width:100%;height:100%;touch-action:none}.preferences{position:absolute;top:12px;right:12px;z-index:10;width:min(360px,calc(100vw - 24px));padding:16px;border:1px solid var(--border);border-radius:12px;background:#16171bfa;box-shadow:0 18px 60px #00000059}.preferences__header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:14px}.preferences h2,.preferences h3,.preferences p{margin:0}.preferences h2{font-size:16px}.preferences h3{margin-bottom:10px;font-size:12px;color:var(--text-dim);text-transform:uppercase;letter-spacing:.08em}.preferences p{margin-top:4px;font-size:12px;color:var(--text-dim)}.preferences__section{display:grid;gap:10px;padding-top:14px;border-top:1px solid var(--border)}.preferences__section+.preferences__section{margin-top:14px}.preferences__row{display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:var(--text)}.preferences__row--checkbox{justify-content:flex-start;gap:10px}.preferences__row select{height:30px;min-width:120px;background:#23252b;color:var(--text);border:1px solid var(--border);border-radius:6px;padding:0 8px;font-size:12px}.preferences__row input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent)}.track-drawer{display:flex;flex:0 0 232px;flex-direction:column;min-height:0;background:var(--panel);border-right:1px solid var(--border);-webkit-user-select:none;user-select:none}.track-drawer__header{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 8px 8px 12px;border-bottom:1px solid var(--border)}.track-drawer__header h2{margin:0;font-size:12px;color:var(--text-dim);text-transform:uppercase;letter-spacing:.08em}.track-drawer__header-actions{display:flex;gap:2px}.track-drawer__list{flex:1;margin:0;padding:0;overflow-y:auto;list-style:none}.track-row{position:relative;display:grid;grid-template-areas:"swatch name" "controls controls" "routing routing";grid-template-columns:auto 1fr;gap:6px 8px;padding:8px 10px 10px;border-bottom:1px solid var(--border);border-left:3px solid transparent}.track-row{cursor:pointer}.track-row:focus-visible{outline:1px solid var(--accent);outline-offset:-2px}.track-row--active{background:#ffffff08;border-left-color:var(--track-color, var(--accent))}.track-row__swatch{position:relative;grid-area:swatch;display:inline-flex;align-items:center;cursor:pointer}.track-row__swatch-dot{width:14px;height:14px;border:1px solid rgba(0,0,0,.45);border-radius:4px;background:var(--track-color, var(--accent))}.track-row__swatch input[type=color]{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;padding:0;border:none;opacity:0;cursor:pointer}.track-row__name{position:relative;grid-area:name;min-width:0;height:22px;padding:0 4px;border:1px solid transparent;border-radius:4px;background:transparent;color:var(--text);font-size:12px;font-weight:600}.track-row__name:hover{border-color:var(--border)}.track-row__name:focus{border-color:var(--accent);background:#23252b;outline:none}.track-row__controls{position:relative;grid-area:controls;display:flex;gap:2px}.track-row__routing{position:relative;grid-area:routing;display:flex;gap:4px}.track-row__routing select{min-width:0;height:24px;font-size:11px}.track-row__routing select:last-child{flex:1}.tool-btn--tiny{width:22px;height:22px;border-radius:4px;font-size:10px}.tool-btn--tiny.tool-btn--text{width:22px;padding:0}.tool-btn:disabled{opacity:.35;cursor:default}.tool-btn:disabled:hover{background:transparent;color:var(--text-dim)}.tool-btn--rec{color:var(--rec);fill:var(--rec)}.tool-btn--rec svg{fill:currentcolor}@keyframes transport-count-in{0%,to{opacity:1}50%{opacity:.3}}.tool-btn--counting{animation:transport-count-in .5s ease-in-out infinite}.transport__sync{display:inline-flex;align-items:center;gap:4px;padding:0 6px;height:22px;border:1px solid var(--border);border-radius:5px;font-size:11px;font-weight:600;letter-spacing:.04em;color:var(--accent)}.transport__sync--waiting{color:var(--text-dim)}.preferences__ports{display:grid;gap:6px;max-height:132px;overflow-y:auto;padding:6px 8px;border:1px solid var(--border);border-radius:6px}.preferences__note{font-size:12px;color:var(--text-dim)}.preferences__row input[type=number]{width:84px;height:30px;background:#23252b;color:var(--text);border:1px solid var(--border);border-radius:6px;padding:0 8px;font-size:12px}