:root {
  --bg: #393939;
  --header-a: #2a404d;
  --header-b: #1c2b33;
  --blue: #2484c0;
  --blue-2: #68c2ff;
  --green: #62c04c;
  --paper: #ffffff;
  --ink: #1a1a1a;
  --muted: #9a9a9a;
  --line: #d7d7d7;
  --play: #e24b4b;
  --rail: 74px;
  --top: 50px;
  --player: 64px;
  color-scheme: dark;
  font-family: Lato, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; background: var(--bg); color: #eee; }
button, input, textarea { font-family: inherit; }
button { cursor: pointer; }
button:disabled { opacity: 0.4; cursor: default; }
:focus-visible { outline: 2px solid var(--blue-2); outline-offset: 2px; }

#rail {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--rail);
  background: #323232;
  border-right: 2px solid #000;
  z-index: 20;
  overflow-x: hidden;
  overflow-y: auto;
}
.brand {
  height: 52px;
  display: grid;
  place-items: center;
  background: #111;
  border-bottom: 1px solid #000;
}
.brand svg { width: 34px; height: 34px; }
.rail-btn {
  display: flex;
  width: 100%;
  min-height: 52px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  border: 0;
  border-bottom: 1px solid #000;
  background: transparent;
  color: #aaa;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.15;
  padding: 6px 2px;
}
.rail-btn .frac { color: var(--green); font-size: 18px; line-height: 1; }
.rail-btn .frac sup, .rail-btn .frac sub { font-size: 15px; }
.rail-sub { color: var(--green); font-size: 11px; }
.rail-btn small { display: block; font-size: 13px; }
.rail-btn.on, .rail-btn:hover { background: #4a4a4a; color: #ddd; }
.rail-btn.on { background: var(--blue); color: white; }
.rail-btn.on .frac, .rail-btn.on .rail-sub { color: white; }
#advancedBtn.on { background: #0096e0; color: white; }

#top {
  position: fixed;
  top: 0;
  left: var(--rail);
  right: 0;
  height: var(--top);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 12px;
  background: linear-gradient(90deg, var(--header-a), var(--header-b));
  border-bottom: 1px solid #000;
  z-index: 19;
}
.wordmark {
  font-weight: 900;
  letter-spacing: 0.08em;
  font-size: 18px;
  color: white;
}
.wordmark span { color: var(--green); }
.metro { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.metro-label { color: #9eb4c2; font-size: 12px; font-weight: 700; letter-spacing: 0.06em; margin-right: 4px; }
.metro button, .top-links button {
  background: transparent;
  border: 0;
  color: #c5d4de;
  font-weight: 700;
  font-size: 14px;
  padding: 4px 7px;
  border-radius: 4px;
}
.metro button.on { color: white; background: rgba(255,255,255,0.12); }
.top-links { margin-left: auto; display: flex; gap: 2px; }
.top-links button:hover, .metro button:hover { color: white; }

#player {
  position: fixed;
  top: var(--top);
  left: var(--rail);
  right: 0;
  height: var(--player);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 10px;
  background: #111;
  border-bottom: 1px solid #000;
  z-index: 18;
}
#playBtn, #loopBtn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 0;
  display: grid;
  place-items: center;
  flex: none;
}
#playBtn { background: #555; color: white; }
#playBtn.playing { background: var(--play); }
#loopBtn { background: #3a3a3a; color: #777; }
#loopBtn.on { color: var(--blue-2); background: #2a2a2a; }
.sliders { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.slider { display: grid; grid-template-columns: 58px 1fr 52px; align-items: center; gap: 8px; color: #999; font-size: 13px; font-weight: 700; }
.slider input[type="range"] { width: 100%; accent-color: #3f91e5; }
#tempoNum {
  width: 52px;
  background: #222;
  color: #ddd;
  border: 0;
  text-align: center;
  font-size: 15px;
  padding: 2px 0;
}
#swingOut { color: #bbb; font-size: 14px; }
#playMeta { margin: 0; color: #8d8d8d; font-size: 12px; width: 120px; text-align: right; }
.kit-switch { display: flex; gap: 6px; flex: none; }
.kit-switch button {
  min-height: 44px;
  padding: 6px 12px;
  border: 0;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.14);
  color: #f6f3ea;
  font-weight: 800;
  font-size: 15px;
}
.kit-switch button.on { background: #ffe08a; color: #1b3a2c; }
.sample-status { margin: 0; color: #fffdf8; font-size: 14px; font-weight: 800; white-space: nowrap; }

#stage {
  margin: calc(var(--top) + var(--player)) 0 0 var(--rail);
  min-height: calc(100vh - var(--top) - var(--player));
  display: flex;
  flex-direction: column;
  width: calc(100% - var(--rail));
}
#sheetWrap { order: 1; }
#warnings { order: 2; }
#grid { order: 3; }
#meta { order: 4; }
#toolbar { order: 5; }
#abcPanel { order: 6; }
#permPanel { order: 0; }
#banner { order: 0; }
.paper { background: var(--paper); color: var(--ink); }
#sheetWrap { padding: 6px 8px 0; overflow: visible; }
#sheet { min-height: 0; overflow-x: auto; overflow-y: visible; max-width: 100%; padding-top: 0; }
#sheet svg { width: 100%; max-width: 100%; height: auto; display: block; overflow: visible; }
#legend {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 6px 14px;
  padding: 8px 12px 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
}
#legend b { font-family: Georgia, serif; margin-right: 6px; }
#warnings { color: #ffb4b4; font-family: ui-monospace, monospace; font-size: 12px; margin: 8px 16px; }

#meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: end;
  padding: 10px 16px 12px;
  border-top: 1px solid #eee;
  width: 100%;
}
#meta label { display: flex; flex: 1 1 220px; flex-direction: column; gap: 3px; font-size: 12px; font-weight: 700; color: #444; }
#meta input {
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 8px 10px;
  width: 100%;
  min-width: 0;
  font-size: 16px;
  color: #111;
  background: white;
}
#legendBtn {
  margin-left: auto;
  border: 1px solid #bbb;
  background: white;
  color: #222;
  border-radius: 4px;
  padding: 8px 12px;
  font-weight: 700;
}

#grid { padding: 8px 8px 12px; overflow-x: hidden; border-top: 1px solid #eee; flex: 0 0 auto; width: 100%; }
.editor-row { display: flex; align-items: center; width: 100%; min-width: 0; }
.measures { display: flex; align-items: stretch; gap: 12px; flex: 1 1 auto; min-width: 0; overflow-x: auto; }
.measure { position: relative; flex: 1 1 0; min-width: min-content; }
.measure-no {
  position: absolute;
  pointer-events: none;
  z-index: 4;
  top: 0;
  right: 40px;
  color: #333;
  font-size: 18px;
  font-weight: 800;
  line-height: 36px;
}
.close-measure {
  position: absolute;
  top: 0;
  right: 0;
  width: 36px;
  height: 36px;
  border: 0;
  background: transparent;
  color: var(--blue);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  padding: 0;
  z-index: 5;
  touch-action: manipulation;
}
.staff-row { display: flex; align-items: stretch; width: 100%; }
.labels { width: 118px; flex: none; display: flex; flex-direction: column; justify-content: flex-start; padding: 0; }
.labels button {
  border: 0;
  background: transparent;
  text-align: right;
  padding: 0 8px 0 0;
  font-size: 15px;
  font-weight: 700;
  color: #555;
  height: var(--cell-h, 58px);
}
.labels button.muted { color: #c0392b; text-decoration: line-through; }
.labels button.stick-label { height: 40px; color: #2484c0; font-size: 16px; }
.beat-spacer { height: 28px; flex: none; }
.lyric-spacer {
  height: 48px;
  flex: none;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  padding: 0 8px 4px 0;
  font-size: 17px;
  font-weight: 800;
  color: #333;
}
.lyric {
  display: block;
  width: 100%;
  height: 48px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  text-align: center;
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", Lato, sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: #17324d;
  padding: 0;
  border-radius: 4px;
}
.lyric:focus { background: #fff6d8; border-bottom-color: var(--blue); outline: none; font-size: 18px; }
.mix-key { margin: 0; padding: 8px 12px 0; color: #555; font-size: 13px; }
.col.pip-16, .col.pip-6 { box-shadow: inset 0 3px 0 #2484c0; }
.col.pip-3, .col.pip-8 { box-shadow: inset 0 3px 0 #e0a106; }
.col.pip-both { box-shadow: inset 0 3px 0 #62c04c; }
#grid[data-density="12"] .col { min-width: 22px; }
#grid[data-density="12"] { --cell-h: 48px; }
#grid[data-density="12"] .group-gap { width: 10px; }
#grid[data-density="24"] .col { min-width: 18px; }
#grid[data-density="24"] { --cell-h: 40px; }
#grid[data-density="24"] .head { width: 16px; height: 16px; }
#grid[data-density="24"] .mark { font-size: 16px; }
#grid[data-density="12"] .cell.hh .mark { font-size: 26px; }
#grid[data-density="24"] .cell.hh .mark { font-size: 20px; -webkit-text-stroke-width: 0.4px; }
#grid[data-density="24"] .lyric { font-size: 16px; }
#grid[data-density="24"] .group-gap { width: 8px; }
#sheet .abcjs-annotation { font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif !important; }
.columns { display: flex; position: relative; flex: 1 1 auto; min-width: min-content; }
.group-gap { width: 14px; flex: none; }
.col { display: flex; flex-direction: column; width: auto; min-width: 28px; flex: 1 1 0; position: relative; z-index: 1; }
.col.now { background: #bdebdd; }
.beat-no { height: 28px; text-align: center; color: #333; font-size: 16px; font-weight: 800; }
.cell {
  height: var(--cell-h, 58px);
  border: 0;
  background: transparent;
  padding: 0;
  position: relative;
  color: #111;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cell.stick, .cell.sticking { height: 40px; font-weight: 800; font-size: 20px; color: #b0b0b0; }
.cell.stick.on, .cell.sticking.on { color: #2484c0; }
.cell.stick.L.on, .cell.sticking.L.on { color: #333; }
.head {
  display: block;
  margin: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 3px solid #b5b5b5;
  background: white;
  position: relative;
  z-index: 1;
}
.cell.on .head { background: #111; border-color: #111; }
.cell.hh .head, .cell.hh.on .head { display: none; }
.mark {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 22px;
  pointer-events: none;
  color: #c8c8c8;
}
.cell.on .mark { color: #111; }
.cell.snare.accent .mark { color: white; font-size: 22px; top: -1px; }
.cell.snare.ghost .mark, .cell.snare.xstick .mark, .cell.snare.buzz .mark, .cell.snare.flam .mark, .cell.snare.drag .mark { color: #111; }
.cell.snare.xstick .head, .cell.snare.flam .head, .cell.snare.drag .head,
.cell.kick.splash .head, .cell.kick.foot_open .head { background: transparent; border-color: transparent; }
.cell.snare.rimshot .head { box-shadow: 0 0 0 2px #fff, 0 0 0 4px #111; }
.cell.snare.buzz .mark {
  font-family: "Times New Roman", serif;
  font-style: italic;
  font-size: 18px;
  font-weight: 700;
  align-items: start;
  justify-items: end;
  padding: 2px 4px 0 0;
}
.cell.snare.ghost .ghost-paren {
  position: absolute;
  top: 50%;
  z-index: 2;
  transform: translateY(-54%);
  color: #111;
  font-style: normal;
  font-weight: 600;
  font-size: 30px;
  line-height: 1;
  pointer-events: none;
}
.cell.snare.ghost .ghost-paren.left { left: 0; }
.cell.snare.ghost .ghost-paren.right { right: 0; }
.cell .hat-mod {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  color: #111;
  font-style: normal;
  font-weight: 800;
  font-size: 13px;
  line-height: 1;
  pointer-events: none;
}
.cell.kick.both .mark { font-size: 16px; top: 12px; color: #111; }
.cell.hh .mark {
  font-size: 30px;
  font-weight: 800;
  line-height: 1;
  -webkit-text-stroke: 0.45px currentColor;
}
.cell.hh.on .mark { font-size: 30px; color: #111; }
#sheet .abcjs-notehead.is-cross {
  stroke: #1a1a1a;
  stroke-width: 0.7;
  stroke-linejoin: round;
  paint-order: stroke fill;
}
.lines {
  position: absolute;
  left: 0;
  right: 0;
  top: 36px;
  height: 124px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  pointer-events: none;
  z-index: 0;
}
.slot-hidden { visibility: hidden; pointer-events: none; }
#permPanel .hint { color: #c8c8c8; margin: 8px 0 0; }
.track {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  margin-top: -1px;
  background: #c9c3b8;
  z-index: 0;
  pointer-events: none;
}
.add-measure {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 64px;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--blue);
  font-size: 40px;
  font-weight: 500;
  line-height: 1;
}
.hint { margin: 8px 8px 0; color: #888; font-size: 12px; }
@media (max-height: 940px) {
  #grid .hint { display: none; }
}

@media (min-width: 521px) {
  #meta {
    order: 2;
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr) minmax(0, 1.5fr) auto;
    gap: 8px;
    align-items: center;
    padding: 2px 10px 4px;
  }
  #meta label {
    flex-direction: row;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    white-space: nowrap;
  }
  #meta label span { flex: 0 0 auto; white-space: nowrap; }
  #meta input { width: auto; flex: 1 1 0; min-width: 0; height: 28px; padding: 2px 8px; font-size: 14px; }
  #legendBtn, html[data-school] #legendBtn { margin-left: 0; min-height: 28px; height: 28px; padding: 0 12px; font-size: 14px; }
  #grid { order: 3; padding: 0 6px 4px; }
  #toolbar { order: 4; padding: 4px 8px 8px; }
  #abcPanel { order: 5; padding: 2px 12px 10px; }
  .labels { width: 72px; }
  .labels button { font-size: 12px; padding-right: 4px; }
  .labels button.stick-label { height: 22px; font-size: 12px; }
  .cell.stick, .cell.sticking { height: 22px; font-size: 13px; }
  .lyric-spacer { height: 20px; font-size: 12px; padding-bottom: 0; }
  .lyric, .lyric:focus { height: 20px; font-size: 12px; }
  .beat-spacer, .beat-no { height: 16px; font-size: 11px; }
  .head { width: 14px; height: 14px; border-width: 2px; }
  .cell.hh .mark, .cell.hh.on .mark { font-size: 12px; -webkit-text-stroke-width: 0.15px; }
  .col { min-width: 0; }
  .group-gap { width: 3px; }
  .measures { flex-wrap: wrap; overflow: visible; gap: 2px 6px; }
  .measure { flex: 1 1 0; min-width: 0; }
  .measure-no { font-size: 11px; line-height: 14px; right: 16px; }
  .close-measure { width: 16px; height: 16px; font-size: 14px; }
  .add-measure { width: 32px; height: 32px; font-size: 28px; align-self: center; }
  .editor-row { align-items: stretch; }
  html[data-school] #toolbar .tool { min-height: 34px; padding: 2px 8px; font-size: 14px; }
}

#toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 16px 16px;
  background: #323232;
  width: 100%;
}
.tool {
  background: #4a4a4a;
  color: white;
  border: 0;
  border-radius: 4px;
  min-width: 0;
  flex: 1 1 120px;
  padding: 8px 10px;
  letter-spacing: 0.04em;
}
.tool:hover { background: #5c5c5c; }
#tomDots { font-style: normal; margin-left: 6px; letter-spacing: 2px; }

#abcPanel { padding: 12px 14px 28px; color: #ddd; }
#abcToggle { background: transparent; border: 0; color: var(--blue-2); font-weight: 700; padding: 0; }
#abc textarea {
  width: min(920px, 100%);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  background: #111;
  color: #e8e8e8;
  border: 1px solid #555;
  border-radius: 4px;
  padding: 8px;
}
.abc-actions { display: flex; gap: 8px; margin-top: 8px; }
.abc-actions button, .popover button, .modal button.primary, .modal button.ghost {
  background: var(--blue);
  color: white;
  border: 0;
  border-radius: 4px;
  padding: 8px 12px;
  font-weight: 700;
}
.modal button.ghost { background: #666; }

.banner {
  margin: 0;
  padding: 8px 14px;
  background: #3d3420;
  color: #ffe3a3;
  font-size: 14px;
}
#permPanel {
  background: #2c2c2c;
  padding: 10px 14px 12px;
  border-bottom: 1px solid #000;
}
#permPanel h2 { margin: 0 0 8px; font-size: 16px; }
.perm-row { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; }
.perm-row label { font-size: 13px; color: #ddd; }
.perm-kind { display: flex; gap: 6px; margin-bottom: 8px; }
.perm-kind button.on { background: var(--blue); color: white; }
.perm-kind button { background: #444; color: #eee; border: 0; border-radius: 4px; padding: 6px 10px; font-weight: 700; }

.menu, .popover {
  position: fixed;
  z-index: 40;
  background: white;
  color: #222;
  border-radius: 6px;
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
  min-width: 180px;
  padding: 6px;
}
.menu button, .popover button.menu-item {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  color: #222;
  padding: 7px 10px;
  border-radius: 4px;
  font-size: 14px;
}
.menu button:hover, .popover button.menu-item:hover, .groove-item:hover { background: #e7f3fb; }
.menu .group-label { font-size: 11px; font-weight: 800; letter-spacing: 0.06em; color: #888; padding: 6px 10px 2px; }
.groove-item { display: block; width: 100%; text-align: left; background: transparent; border: 0; color: #222; padding: 6px 10px 6px 16px; }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 16px;
}
.modal-card {
  background: white;
  color: #222;
  width: min(560px, 100%);
  border-radius: 10px;
  padding: 18px 18px 16px;
  position: relative;
  max-height: min(86vh, 760px);
  overflow: auto;
}
.modal-card h2 { margin: 0 0 6px; }
.modal-card p { margin: 6px 0; line-height: 1.45; }
.modal-x {
  position: absolute;
  top: 8px;
  right: 10px;
  border: 0;
  background: transparent;
  font-size: 26px;
  line-height: 1;
  color: #666;
}
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 12px; }
.sig-row { display: flex; gap: 8px; align-items: center; font-size: 22px; margin: 12px 0; }
.sig-row select { font-size: 20px; padding: 4px 8px; }
#shareUrl { width: 100%; font-size: 14px; padding: 8px; border: 1px solid #ccc; border-radius: 4px; }
.checkline { display: flex; gap: 16px; margin: 8px 0; font-size: 14px; }
.help-list { padding-left: 18px; }
.help-list li { margin: 4px 0; }
#toast {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: #111;
  color: white;
  padding: 10px 14px;
  border-radius: 6px;
  z-index: 60;
  box-shadow: 0 6px 20px rgba(0,0,0,.3);
}

body.viewing .edit-only { display: none !important; }
body.viewing #viewBtn { display: flex; }

@media (max-width: 860px) {
  :root { --rail: 0px; }
  #rail {
    position: relative;
    top: auto;
    width: 100%;
    height: 72px;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    border-right: 0;
    border-bottom: 2px solid #000;
    z-index: 25;
  }
  .brand { width: 56px; flex: none; height: 72px; }
  .rail-btn { width: 72px; flex: none; min-height: 0; height: 72px; }
  #top, #player { position: relative; left: auto; top: auto; width: 100%; }
  #top { height: auto; min-height: var(--top); flex-wrap: wrap; padding: 8px; }
  #player { height: auto; flex-wrap: wrap; padding: 8px; }
  #stage { margin: 0; width: 100%; }
  #playMeta { width: auto; text-align: left; }
  .slider { grid-template-columns: 52px minmax(80px, 1fr) 48px; }
  #meta input { min-width: 0; width: 100%; }
  #meta label { flex: 1 1 140px; }
}

@media (max-width: 520px) {
  #app { display: flex; flex-direction: column; min-height: 100%; }
  #brandbar { order: 1; }
  #player { order: 2; }
  #top { order: 3; }
  #rail { order: 4; }
  #stage { order: 5; flex: 1 1 auto; }

  #rail {
    height: 42px;
    padding: 0 8px;
    gap: 6px;
    align-items: center;
    border-bottom: 0;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
  }
  #rail::-webkit-scrollbar { display: none; }
  #divisionBtns { display: contents; }
  .brand { display: none; }
  .rail-btn {
    width: auto;
    height: 30px;
    min-height: 0;
    flex: 0 0 auto;
    flex-direction: row;
    align-items: center;
    gap: 3px;
    padding: 0 9px;
    border: 0;
    border-radius: 999px;
    font-size: 13px;
    line-height: 1;
    white-space: nowrap;
    overflow: hidden;
  }
  .rail-btn br { display: none; }
  .rail-btn .frac { font-size: 13px; line-height: 1; }
  .rail-btn .frac sup,
  .rail-btn .frac sub {
    font-size: inherit;
    line-height: 1;
    vertical-align: baseline;
    position: static;
  }
  .rail-sub { display: none; }
  .cell.hh .mark,
  .cell.hh.on .mark {
    font-size: 18px;
    -webkit-text-stroke-width: 0.25px;
  }
  #grid[data-density="12"] .cell.hh .mark { font-size: 16px; }
  #grid[data-density="24"] .cell.hh .mark { font-size: 14px; }

  #top {
    height: 36px;
    min-height: 0;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 2px;
    padding: 0 8px 6px;
    scrollbar-width: none;
  }
  #top::-webkit-scrollbar { display: none; }
  .metro { flex-wrap: nowrap; gap: 2px; }
  .metro-label { display: none; }
  .metro button, .top-links button {
    font-size: 13px;
    min-height: 28px;
    padding: 0 8px;
    white-space: nowrap;
  }
  .top-links { margin-left: 6px; gap: 0; }

  #player {
    display: grid;
    grid-template-columns: 40px 40px minmax(0, 1fr);
    grid-template-areas:
      "play loop kits"
      "sliders sliders sliders";
    align-items: center;
    height: auto;
    gap: 6px 8px;
    padding: 8px 10px 4px;
  }
  #playBtn { grid-area: play; }
  #loopBtn { grid-area: loop; }
  .kit-switch { grid-area: kits; min-width: 0; gap: 4px; }
  .kit-switch button {
    min-height: 32px;
    min-width: 0;
    flex: 1 1 0;
    padding: 0 4px;
    border-radius: 999px;
    font-size: 12px;
    white-space: nowrap;
  }
  .sliders {
    grid-area: sliders;
    flex-direction: row;
    gap: 8px;
    width: 100%;
  }
  .slider {
    flex: 1 1 0;
    min-width: 0;
    grid-template-columns: 28px minmax(0, 1fr) 34px;
    gap: 4px;
    font-size: 12px;
  }
  #tempoNum { width: 34px; font-size: 15px; padding: 0; }
  #swingOut { font-size: 12px; }
  #playMeta { display: none; }
  #playBtn, #loopBtn { width: 40px; height: 40px; }

  #stage { padding: 8px 4px 16px; gap: 0; }
  .labels { width: 64px; }
  .labels button { font-size: 13px; padding: 0 2px 0 0; white-space: nowrap; }
  .lyric-spacer { font-size: 17px; padding-right: 2px; }
  .group-gap { width: 2px; }
  .measure-no { left: 2px; right: auto; top: 12px; line-height: 1; }
  #sheetWrap {
    order: 1;
    margin: 0;
    padding: 2px 0 0;
    border-radius: 16px 16px 0 0;
  }
  #sheet { padding-top: 0; overflow-x: auto; }
  #sheet svg { max-width: none; }
  #warnings { order: 2; margin: 6px 2px; }
  #grid {
    order: 3;
    margin: 0;
    padding: 0 0 8px;
    border-top: 0;
    border-radius: 0 0 16px 16px;
  }
  #grid .hint { display: none; }
  #meta {
    order: 5;
    margin: 10px 0 0;
    padding: 10px 12px;
    border-top: 0;
    border-radius: 14px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    align-items: end;
  }
  #meta label { flex: none; }
  #meta label:nth-child(3) { grid-column: 1; grid-row: 2; }
  #legendBtn {
    grid-column: 2;
    grid-row: 2;
    justify-self: end;
    align-self: end;
    margin-left: 0;
    width: auto;
    min-height: 40px;
    padding: 0 16px;
  }
  #toolbar { order: 6; padding: 10px 0 0; background: transparent; }
  #abcPanel { order: 7; }
  #permPanel { order: 0; }
  #banner { order: 0; }
}

@media print {
  body { background: white; }
  #rail, #top, #player, .noprint, #toolbar, #meta, #grid, #abcPanel, #permPanel, #banner { display: none !important; }
  #stage { margin: 0; }
  #sheetWrap { padding: 0; }
}

/* 電腦版：格子大小由程式依剩下的高度決定，圓點與 Hi-hat 記號跟著放大 */
@media (min-width: 521px) {
  #grid .head { width: calc(var(--cell-h, 24px) * 0.6); height: calc(var(--cell-h, 24px) * 0.6); }
  #grid .cell.hh .mark, #grid .cell.hh.on .mark { font-size: calc(var(--cell-h, 24px) * 0.5); }
  #grid .labels button:not(.stick-label) { font-size: clamp(12px, calc(var(--cell-h, 24px) * 0.34), 16px); }
}