:root {
  --bg: #f6f5f2; --panel: #ffffff; --fg: #1d1f23; --muted: #6b6f78; --line: #e3e1dc;
  --accent: #d0482f; --accent-fg: #fff; --chip: #efede8; --danger: #b3261e;
  --roll-bg: #fbfaf7; --roll-staff: #cfcac0; --roll-beat: #eeebe5; --roll-bar: #bdb8ad;
  --roll-muted: #8b8f98; --roll-fg: #1d1f23; --roll-focus: #1d1f23; --roll-loop: rgba(208, 72, 47, .08);
  --good: #1f9d55; --off: #d0482f;
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #15171b; --panel: #1e2126; --fg: #e8e6e1; --muted: #9aa0aa; --line: #2e3238;
    --accent: #ff7a5c; --accent-fg: #1a0f0c; --chip: #2a2e34; --danger: #ff8a80;
    --roll-bg: #181a1e; --roll-staff: #3d424a; --roll-beat: #23262b; --roll-bar: #4b515a;
    --roll-muted: #8a909a; --roll-fg: #ffffff; --roll-focus: #ffffff; --roll-loop: rgba(255, 122, 92, .10);
    --good: #4ade80; --off: #ff7a5c;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; } /* so display rules below never un-hide things */
html, body { margin: 0; background: var(--bg); color: var(--fg); font: 15px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif; }
button, select, input { font: inherit; color: inherit; }
button {
  background: var(--chip); border: 1px solid transparent; border-radius: 8px; padding: 6px 10px;
  cursor: pointer; min-height: 36px; touch-action: manipulation;
}
button:hover { border-color: var(--line); }
button.primary { background: var(--accent); color: var(--accent-fg); }
button.on { background: var(--fg); color: var(--bg); }
button.icon { min-width: 40px; padding: 6px; }
select, input[type=number], input[type=text], input[type=password] {
  background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 6px 8px; min-height: 36px;
}
input[type=range] { accent-color: var(--accent); }
.muted { color: var(--muted); }
.small { font-size: 13px; }

/* Layout */
header.top {
  display: flex; align-items: center; gap: 10px; padding: 8px 16px; border-bottom: 1px solid var(--line);
  background: var(--panel); position: sticky; top: 0; z-index: 5;
}
header.top h1 { font-size: 17px; margin: 0; flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.app { display: grid; grid-template-columns: 300px 1fr; min-height: calc(100vh - 53px); }
aside.library { border-right: 1px solid var(--line); background: var(--panel); padding: 12px; overflow: auto; max-height: calc(100vh - 53px); position: sticky; top: 53px; }
main.player { padding: 12px 16px 40px; min-width: 0; }
#libToggle { display: none; }
@media (max-width: 820px) {
  .app { grid-template-columns: 1fr; }
  aside.library { position: static; max-height: none; border-right: 0; display: none; }
  body.show-lib aside.library { display: block; }
  body.show-lib main.player { display: none; }
  #libToggle { display: inline-block; }
  main.player { padding: 0 12px 40px; }
  .transport { gap: 5px; }
  .transport .pos { flex-basis: 100%; margin: 0; font-size: 13px; color: var(--muted); order: 10; }
  .transport .sep { display: none; }
  .transport button { padding: 6px 8px; }
  #roll { height: 40vh; }
  .mixer { order: 3; }
  .controls { order: 4; }
  .mixhead .explain { display: none; }
}

/* Library */
.library h2 { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 14px 4px 6px; }
.library ul { list-style: none; margin: 0; padding: 0; }
.library li { display: flex; align-items: center; gap: 4px; border-radius: 8px; }
.library li.active { background: var(--chip); }
.library li > a, .library li > span.name {
  flex: 1; padding: 8px; color: inherit; text-decoration: none; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0;
}
.library li > a:hover { text-decoration: underline; }
.library li button { min-height: 30px; padding: 2px 7px; background: transparent; color: var(--muted); }
.library li button:hover { color: var(--fg); background: var(--chip); }
.uploader {
  border: 1.5px dashed var(--line); border-radius: var(--radius); padding: 12px; text-align: center; color: var(--muted);
}
.uploader.drag { border-color: var(--accent); color: var(--fg); }
.jobs { font-size: 13px; margin-top: 8px; }
.jobs div { padding: 4px 8px; }
.audio-player { width: 100%; margin-top: 8px; }

/* Player */
.empty { color: var(--muted); padding: 40px 8px; text-align: center; }
.songhead { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.songhead h2 { margin: 0; font-size: 20px; overflow-wrap: anywhere; }
.transport {
  display: flex; flex-wrap: wrap; gap: 6px; align-items: center; padding: 8px 0; margin: 0;
  position: sticky; top: 53px; z-index: 4; background: var(--bg);
}
#playerUi { display: flex; flex-direction: column; }
.transport .sep { width: 1px; height: 24px; background: var(--line); margin: 0 4px; }
.transport .pos { font-variant-numeric: tabular-nums; margin-left: 6px; min-width: 150px; }
#playBtn { min-width: 64px; }
#seek { width: 100%; margin: 4px 0 8px; }
.rollwrap { position: relative; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
#roll { display: block; width: 100%; height: min(46vh, 420px); touch-action: none; cursor: grab; }
.zoom { position: absolute; right: 6px; top: 6px; display: flex; gap: 4px; }
.zoom button { min-height: 30px; min-width: 30px; padding: 2px; opacity: .85; }
.controls { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; margin: 10px 0; }
.controls label { display: flex; align-items: center; gap: 6px; }
.controls input[type=number] { width: 64px; }
#tempo { width: 140px; }

/* Mixer */
.mixer { margin-top: 12px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.mixer .mixhead { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.mixer .mixhead strong { flex: 1; }
.part { display: grid; grid-template-columns: 14px minmax(90px, 1fr) 48px auto minmax(90px, 1.4fr) 38px; gap: 8px; align-items: center; padding: 6px 10px; border-bottom: 1px solid var(--line); }
.part:last-child { border-bottom: 0; }
.part .sw { width: 14px; height: 14px; border-radius: 4px; }
.part .pname { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.part .pname small { display: block; color: var(--muted); font-size: 12px; }
.part .now { font-variant-numeric: tabular-nums; font-weight: 600; text-align: center; }
.part .btns { display: flex; gap: 4px; }
.part .btns button { min-height: 32px; min-width: 34px; padding: 2px 6px; }
.part input[type=range] { width: 100%; }
.part .vol { font-variant-numeric: tabular-nums; text-align: right; font-size: 13px; color: var(--muted); }
.part.silent .pname, .part.silent .now { opacity: .45; }
@media (max-width: 560px) {
  .part { grid-template-columns: 12px 1fr 40px auto; }
  .part input[type=range] { grid-column: 2 / 4; }
  .part .vol { grid-column: 4; text-align: left; }
}

.toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); background: var(--fg); color: var(--bg); padding: 10px 16px; border-radius: 10px; z-index: 20; max-width: calc(100vw - 32px); }

/* Login */
.login { max-width: 340px; margin: 18vh auto 0; padding: 24px 16px; text-align: center; }
.login form { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
.login .err { color: var(--danger); min-height: 1.4em; }

/* Score setup */
.setup { margin-top: 12px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 8px 10px; }
.setup summary { cursor: pointer; font-weight: 600; padding: 4px 0; }
.setup > label { display: inline-flex; gap: 6px; align-items: center; margin: 6px 0; }
.setup input[type=number] { width: 72px; }
.srow { display: grid; grid-template-columns: minmax(120px, 1.3fr) minmax(150px, 1.2fr) auto auto minmax(80px, 1fr); gap: 6px; align-items: center; padding: 6px 0; border-top: 1px solid var(--line); }
.srow .sname small { display: block; }
.srow select, .srow input { min-height: 32px; font-size: 13px; width: 100%; }
@media (max-width: 700px) { .srow { grid-template-columns: 1fr 1fr; } .srow .sname { grid-column: 1 / -1; } }

/* Page editor */
dialog#pagesDlg { width: min(960px, calc(100vw - 24px)); max-height: calc(100vh - 24px); border: 1px solid var(--line); border-radius: 14px; background: var(--panel); color: var(--fg); padding: 0; }
dialog#pagesDlg::backdrop { background: rgba(0, 0, 0, .45); }
.dlghead, .dlgfoot { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; padding: 12px 14px; }
.dlghead { border-bottom: 1px solid var(--line); }
.dlgfoot { border-top: 1px solid var(--line); position: sticky; bottom: 0; background: var(--panel); }
#pagesGrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; padding: 14px; overflow: auto; max-height: calc(100vh - 170px); }
.pg { margin: 0; }
.pgimg { aspect-ratio: 1; display: flex; align-items: center; justify-content: center; background: var(--chip); border-radius: 8px; overflow: hidden; }
.pgimg img { max-width: 72%; max-height: 72%; transition: transform .2s; box-shadow: 0 1px 4px rgba(0,0,0,.25); background: #fff; }
.pgimg .pdf { font-weight: 700; color: var(--muted); }
.pg figcaption { display: flex; gap: 4px; align-items: center; margin-top: 4px; font-variant-numeric: tabular-nums; }
.pg figcaption span { flex: 1; }
.pg figcaption button { min-height: 30px; padding: 2px 8px; }
#setupNote:not(:empty) { color: var(--danger); margin: 4px 0 8px; }

/* Roll / Sheet switch */
.viewsw { display: inline-flex; gap: 2px; background: var(--chip); padding: 3px; border-radius: 10px; margin: 2px 0 8px; }
.viewsw button { min-height: 30px; padding: 3px 14px; background: transparent; }
.viewsw button.on { background: var(--panel); box-shadow: 0 1px 2px rgba(0,0,0,.15); color: var(--fg); }

/* Sheet music */
.sheet { border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); overflow: hidden; }
.sheetbar { display: flex; align-items: center; gap: 6px; padding: 6px 8px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.sheetbar .pageLabel { font-variant-numeric: tabular-nums; min-width: 110px; text-align: center; }
.sheetbar button { min-height: 32px; min-width: 34px; padding: 2px 8px; }
.sheet:not(.hasphotos) .photoToggle { display: none; }
.sheetMsg:not(:empty) { padding: 8px 12px; }
.sheetbody { display: grid; grid-template-columns: 1fr; height: min(70vh, 760px); }
.sheet.compare .sheetbody { grid-template-columns: 1fr 1fr; }
.sheetbody .photo { display: none; overflow: auto; background: #fff; border-right: 1px solid var(--line); }
.sheet.compare .sheetbody .photo { display: block; }
.sheetbody .photo img { width: 100%; display: block; }
/* the notation is drawn black on white, in dark mode too, so it reads like the paper */
.paper { position: relative; overflow: auto; background: #fff; color: #000; cursor: pointer; }
.paper svg { display: block; }
.barmark { position: absolute; border-radius: 6px; background: rgba(208, 72, 47, .14); outline: 2px solid rgba(208, 72, 47, .55); pointer-events: none; transition: left .12s, top .12s, width .12s; }
@media (max-width: 820px) {
  .sheet.compare .sheetbody { grid-template-columns: 1fr; grid-template-rows: 40% 60%; }
  .sheetbody .photo { border-right: 0; border-bottom: 1px solid var(--line); }
}
.setup label.marks { display: flex; margin: 0 0 8px; }
.setup label.marks input { flex: 1; min-width: 0; }