.file-import{border:2px dashed var(--accent);border-radius:12px;flex-direction:column;align-items:center;gap:.75rem;width:100%;padding:2rem;transition:border-color .15s,background .15s;display:flex}.file-import--dragging{border-color:var(--active);background:#00e6760d}.file-import__button{background:var(--accent);color:var(--text);cursor:pointer;border:none;border-radius:6px;padding:.5rem 1.5rem;font-size:.9rem;transition:background .15s}.file-import__button:hover{background:#1a4a80}.file-import__error{color:#ff5252;font-size:.85rem}.grid-cell{aspect-ratio:1;background:var(--surface);cursor:pointer;color:var(--text);border:1px solid #ffffff0f;border-radius:6px;justify-content:center;align-items:center;padding:0;font-family:inherit;transition:background-color 60ms ease-out,box-shadow 60ms ease-out;display:flex}.grid-cell:hover{border-color:#ffffff26}.grid-cell--active{border-color:#00e67666}.grid-cell__label{opacity:.6;pointer-events:none;-webkit-user-select:none;user-select:none;font-size:.65rem}.grid-cell--active .grid-cell__label{opacity:1;color:#fff}.grid{gap:4px;width:100%;max-width:560px;display:grid}.transport{flex-direction:column;align-items:center;gap:.75rem;width:100%;max-width:560px;display:flex}.transport__buttons{gap:.5rem;display:flex}.transport__btn{border:none;border-radius:6px;padding:.5rem 1.5rem;font-family:inherit;font-size:.9rem;transition:background .15s}.transport__btn:disabled{background:hsl(from var(--accent) h calc(s/2) l);color:hsl(from var(--text) h s calc(l/2));cursor:default}.transport__btn:not(:disabled){background:var(--accent);color:var(--text);cursor:pointer}.transport__btn:not(:disabled):hover{background:#1a4a80}.transport__seek{align-items:center;gap:.5rem;width:100%;display:flex}.transport__slider{accent-color:var(--active);flex:1}.transport__time{font-variant-numeric:tabular-nums;text-align:center;opacity:.7;min-width:3em;font-size:.8rem}.transport__info{opacity:.6;font-size:.8rem}.config-toggle{color:var(--text);border:1px solid var(--accent);cursor:pointer;opacity:.6;background:0 0;border-radius:6px;padding:.4rem 1rem;font-family:inherit;font-size:.8rem;transition:opacity .15s}.config-toggle:hover{opacity:1}.config-panel{flex-direction:column;gap:.75rem;width:100%;max-width:560px;display:flex}.config-panel__header{justify-content:space-between;align-items:center;font-size:.85rem;display:flex}.config-panel__actions{gap:.5rem;display:flex}.config-panel__actions button{background:var(--accent);color:var(--text);cursor:pointer;border:none;border-radius:4px;padding:.3rem .8rem;font-family:inherit;font-size:.75rem}.config-panel__grid{gap:3px;display:grid}.config-panel__input{background:var(--surface);width:100%;color:var(--text);text-align:center;border:1px solid #ffffff1a;border-radius:4px;padding:.3rem;font-family:inherit;font-size:.7rem}.config-panel__input:focus{outline:1px solid var(--active);border-color:var(--active)}.config-panel__input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.config-panel__input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.config-panel__input{-moz-appearance:textfield}*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#1a1a2e;--surface:#16213e;--text:#e0e0e0;--accent:#0f3460;--active:#00e676}body{background:var(--bg);color:var(--text);min-height:100vh;font-family:system-ui,-apple-system,sans-serif}.app{flex-direction:column;align-items:center;gap:1.5rem;max-width:900px;margin:0 auto;padding:2rem 1rem;display:flex}.app h1{letter-spacing:.05em;font-size:1.5rem;font-weight:600}.midi-info{opacity:.7;font-size:.85rem}