.music-piano { min-width: 0; padding: 22px 24px; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--app-accent, #FF8A1F) 3%, var(--panel)); }
.piano-topline { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px 20px; margin-bottom: 16px; }
.piano-title { min-width: 0; }
.piano-title .eyebrow { margin-bottom: 6px; font-size: 9px; }
.piano-title h2 { margin: 0; color: var(--fg); font: 600 23px/1.25 var(--font); letter-spacing: -.035em; }
.piano-modes { display: flex; flex-wrap: wrap; gap: 5px; padding: 4px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); }
.piano-modes button { padding: 8px 14px; font-size: 12px; border-color: transparent; background: transparent; }
.piano-modes button[aria-pressed=true] { background: var(--app-accent, #FF8A1F); color: #17100a; border-color: var(--app-accent, #FF8A1F); }
.piano-instrument { overflow: hidden; min-width: 0; border: 1px solid var(--line); border-radius: 13px; background: var(--bg); box-shadow: 0 9px 26px #00000012; }
.piano-dashboard { display: grid; grid-template-columns: minmax(90px, .7fr) minmax(100px, 1fr) minmax(100px, 1fr) minmax(170px, 1.1fr); align-items: center; gap: 14px; padding: 15px 20px; }
.piano-note, .piano-measure, .piano-octave { min-width: 0; }
.piano-note > span, .piano-measure > span { display: block; color: var(--muted); font-size: 10px; margin-bottom: 5px; }
.piano-note > strong { display: block; color: var(--accent-text, #FF8A1F); font: 600 31px/1.2 var(--mono); }
.piano-measure > strong { display: block; color: var(--fg); font: 16px/1.5 var(--mono); white-space: nowrap; }
.piano-octave { color: var(--muted); font-size: 10px; }
.piano-octave select { width: 100%; margin-top: 5px; padding-inline: 10px; color: var(--fg); background: var(--panel); }
.piano-keybed { position: relative; display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: 2px; height: 170px; margin: 0 18px; border: 3px solid #171b23; border-top-width: 6px; border-radius: 0 0 7px 7px; background: #171b23; touch-action: none; user-select: none; -webkit-user-select: none; }
#musicWorkbench .piano-key, .piano-key { display: flex; flex-direction: column; align-items: center; justify-content: end; gap: 6px; min-width: 0; min-height: 0; padding: 10px 2px; border: 0; border-radius: 0 0 5px 5px; font-family: var(--font); touch-action: none; cursor: pointer; transition: background .08s, box-shadow .08s; }
#musicWorkbench .piano-key-white, .piano-key-white { grid-column: calc(var(--key-position) + 1); grid-row: 1; height: 100%; color: #343840; background: linear-gradient(#e7eaf0, #ffffff 78%, #e5e8ed); box-shadow: inset 0 -5px 0 #b5bac2; }
#musicWorkbench .piano-key-black, .piano-key-black { position: absolute; z-index: 1; left: calc(var(--key-position) * 12.5%); transform: translateX(-50%); top: 0; width: 8.3%; height: 62%; color: #eef1f6; background: linear-gradient(#181d27, #30394a); box-shadow: inset 0 -5px 0 #090c12, 0 4px 4px #0000004d; }
.piano-key-name { display: block; font-size: 13px; font-weight: 600; line-height: 1.2; }
.piano-key kbd { display: block; color: inherit; opacity: .6; font: 10px/1.2 var(--mono); padding: 0; border: 0; background: transparent; }
#musicWorkbench .piano-key[aria-pressed=true], .piano-key[aria-pressed=true] { color: #251303; background: linear-gradient(#ffc17a, #FF8A1F); box-shadow: inset 0 -2px 0 #b15a0b, inset 0 2px 5px #95480e59; }
#musicWorkbench .piano-key-black[aria-pressed=true], .piano-key-black[aria-pressed=true] { background: linear-gradient(#ffad56, #e87308); box-shadow: inset 0 -2px 0 #934104, 0 1px 2px #0000004d; }
#musicWorkbench .piano-key:focus-visible, .piano-key:focus-visible { outline: 3px solid #b64b00; outline-offset: -5px; }
.piano-key:disabled { cursor: default; opacity: .45; }
.piano-performance { display: flex; align-items: center; justify-content: space-between; gap: 10px; min-width: 0; padding: 10px 18px; }
.piano-note-status { display: flex; align-items: center; min-width: 0; gap: 8px; color: var(--muted); font-size: 11px; line-height: 1.55; }
.piano-note-status > span:last-child { overflow-wrap: anywhere; }
.piano-status-dot { width: 6px; height: 6px; flex: none; border-radius: 50%; background: var(--muted); opacity: .5; }
.piano-is-playing .piano-status-dot { opacity: 1; background: var(--app-accent, #FF8A1F); box-shadow: 0 0 10px #FF8A1F66; }
.piano-is-playing .piano-note-status { color: var(--accent-text, #FF8A1F); }
.piano-release { flex: none; font-size: 10px; padding-inline: 12px; }
.piano-footnote { display: flex; gap: 10px 28px; flex-wrap: wrap; margin-top: 12px; }
.piano-footnote p { flex: 1 1 300px; margin: 0; color: var(--muted); font-size: 10px; line-height: 1.7; }
.piano-footnote strong { color: var(--fg); font-weight: 500; }
.piano-footnote kbd { font-family: var(--mono); font-size: 10px; }
@media (max-width: 760px) {
  .music-piano { padding: 20px 16px; }
  .piano-dashboard { grid-template-columns: .7fr 1fr 1fr; padding: 13px 14px; gap: 12px 10px; }
  .piano-octave { grid-column: 1 / -1; display: flex; align-items: center; gap: 12px; }
  .piano-octave select { flex: 1; min-width: 0; width: auto; margin-top: 0; }
  .piano-note > strong { font-size: 27px; }
  .piano-measure > strong { font-size: 14px; }
  .piano-keybed { height: 150px; margin-inline: 10px; }
  .piano-performance { padding-inline: 12px; }
}
@media (max-width: 480px) {
  .music-piano { padding: 17px 10px; }
  .piano-title h2 { font-size: 22px; }
  .piano-modes { width: 100%; }
  .piano-modes button { flex: 1; padding-inline: 8px; }
  .piano-dashboard { gap: 10px 6px; padding-inline: 9px; }
  .piano-note > strong { font-size: 25px; }
  .piano-measure > strong { font-size: 12px; }
  .piano-note > span, .piano-measure > span { font-size: 9px; }
  .piano-keybed { height: 126px; margin-inline: 4px; gap: 1px; }
  .piano-key-name { font-size: 11px; }
  .piano-key kbd { display: none; }
  .piano-performance { align-items: start; gap: 6px; padding-inline: 8px; }
  .piano-release { padding-inline: 8px; font-size: 9px; }
  .piano-footnote { gap: 6px; }
}
@media (prefers-reduced-motion: reduce) { .piano-key { transition: none; } }
.music-piano[data-piano-mode=continuous] :is(.piano-instrument,.piano-footnote) { display: none; }
.music-piano[data-piano-mode=continuous] .piano-topline { margin-bottom: 0; }
@media (min-width: 761px) {
  .music-piano { padding-block: 16px; }
  .piano-topline { margin-bottom: 12px; }
  .piano-dashboard { padding-block: 10px; }
  .piano-keybed { height: 140px; }
  .piano-performance { padding-block: 5px; }
  .piano-footnote { margin-top: 8px; }
}
@media (max-width: 480px) {
  .music-piano { padding-block: 12px; }
  .piano-title .eyebrow, .piano-footnote { display: none; }
  .piano-title h2 { font-size: 20px; }
  .piano-topline { gap: 8px; margin-bottom: 10px; }
  .piano-keybed { height: 115px; }
  .piano-performance { align-items: center; padding-block: 3px; }
}