/* GuitarLab design system — "stage gear" identity, native-app finish.
   Warm near-black ground, tube-amber accent, flat platform-style surfaces:
   solid fills, hairline borders, soft radii — no gradient chrome.
   Display face: Bebas Neue (poster caps). Body face: Barlow.
   Class contracts used by modules (do not rename): card, row, tight, spread,
   grid2, muted, small, big-display, mid-display, btn (primary/danger/big/sm),
   field, seg, chip, legend-dot, list, error, good, bad, tab, tabs, panel. */

@font-face {
  font-family: 'Barlow';
  font-style: normal;
  font-weight: 400;
  src: url('../fonts/barlow-400.woff2') format('woff2');
}
@font-face {
  font-family: 'Barlow';
  font-style: normal;
  font-weight: 500;
  src: url('../fonts/barlow-500.woff2') format('woff2');
}
@font-face {
  font-family: 'Barlow Condensed';
  font-style: normal;
  font-weight: 600;
  src: url('../fonts/barlowcond-600.woff2') format('woff2');
}
@font-face {
  font-family: 'Barlow Condensed';
  font-style: normal;
  font-weight: 700;
  src: url('../fonts/barlowcond-700.woff2') format('woff2');
}
/* display face — iconic poster caps (single weight; caps-only, so anything
   mixed-case that must stay readable pins itself to Barlow Condensed) */
@font-face {
  font-family: 'Bebas Neue';
  font-style: normal;
  font-weight: 400 700;
  src: url('../fonts/bebasneue-400.ttf') format('truetype');
}

:root {
  color-scheme: dark;
  --bg: #131114;
  --panel: #191518;
  --card: #1e191c;
  --card2: #292328;
  --inset: #141114;       /* sunken tracks: seg controls, sliders, LEDs */
  --line: #342c2f;
  --line-soft: rgba(255, 255, 255, 0.05);
  --text: #ede8e0;
  --muted: #a29889;
  --label: #c9beac;       /* form labels — brighter than muted for legibility */
  --ctl-border: #4d4247;  /* control borders — hairline but visible on cards */
  --accent: #ffab47;        /* tube amber */
  --accent-dim: #c97f26;
  --accent-glow: rgba(255, 171, 71, 0.35);
  /* tints derived from the accent, so they follow the light theme and
     Settings › Accent (App.setAccent sets --accent inline) */
  --accent-soft: color-mix(in srgb, var(--accent) 13%, transparent);
  --accent-line: color-mix(in srgb, var(--accent) 60%, transparent);
  --accent-ink: var(--accent);  /* accent as TEXT (deepened in the light theme) */
  --warn: #ffb36b;
  --h-ctl: 34px;          /* one height for toolbar controls (38 on touch) */
  --teal: #4cc9b0;
  --green: #77d98b;
  --red: #ff6f6f;
  --blue: #6ea8fe;
  --purple: #b48ef0;
  --radius: 16px;
  --shadow-1: 0 1px 3px rgba(0, 0, 0, 0.22);
  --font-body: 'Barlow', 'Segoe UI', system-ui, sans-serif;
  --font-display: 'Bebas Neue', 'Barlow Condensed', 'Segoe UI', system-ui, sans-serif;
  --font-condensed: 'Barlow Condensed', 'Segoe UI', system-ui, sans-serif; /* mixed-case display (chord names) */
}

/* ---------- light theme (persisted app.theme) ----------
   Flat surfaces are pure token swaps — only the select chevron artwork and
   the translucent top bar need explicit light rules. */

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f3efe8;
  --panel: #efe9df;
  --card: #fffdf9;
  --card2: #f1ebe1;
  --inset: #e7e0d3;
  --line: #d8cfc1;
  --line-soft: rgba(0, 0, 0, 0.05);
  --text: #2b241d;
  --muted: #756b5c;
  --label: #6e6355;
  --ctl-border: #c2b6a2;
  --accent: #d97e0f;        /* amber, darkened for contrast on light */
  --accent-dim: #b96a10;
  --accent-glow: rgba(217, 126, 15, 0.28);
  /* accent-colored labels (active tab / pill / seg / chip) need >= 4.5:1 on
     the pale cards; follows Settings › Accent via the inline --accent */
  --accent-ink: color-mix(in srgb, var(--accent) 70%, #000);
  --warn: #9a5a0c;
  /* status colors re-inked for text on a light card (>= 4.5:1) */
  --teal: #12806b;
  --green: #2c7f3e;
  --red: #c23434;
  --blue: #2f68c8;
  --purple: #7449c2;
  --shadow-1: 0 1px 3px rgba(0, 0, 0, 0.1);
}
@media (pointer: coarse) { :root { --h-ctl: 38px; } }

:root[data-theme="light"] .topbar {
  background: rgba(250, 247, 242, 0.92);
}
/* chevron re-inked for the light face; every layer keeps explicit repeat/
   position so nothing can ever tile it */
:root[data-theme="light"] select {
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23b96a10' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 12px 7px;
}

* { box-sizing: border-box; }

/* no double-tap-to-zoom ANYWHERE. touch-action does NOT inherit, so the old
   html,body rule left every other element zoomable — this hits them all.
   Pinch-zoom and panning stay available (manipulation); surfaces that
   restrict further (touch-action:none paint grids, pan-x boards) win via
   their class rules' higher specificity. */
* { touch-action: manipulation; }

/* Chrome's UA button/input styles reset the font to Arial — every form
   control speaks the app face unless a rule says otherwise */
button, input, select, textarea { font-family: inherit; }

html, body {
  margin: 0;
  padding: 0;
  touch-action: manipulation;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  background:
    radial-gradient(1100px 520px at 18% -12%, color-mix(in srgb, var(--accent) 6%, transparent), transparent 60%),
    var(--bg);
  background-attachment: fixed;
}

::selection { background: color-mix(in srgb, var(--accent) 30%, transparent); }

/* an app, not a document: taps never select words — which is also what
   triggers Chrome's "Touch to Search" Google panel on Android — and long
   presses don't pop the copy/share callout. Typing fields stay selectable. */
body { -webkit-user-select: none; user-select: none; -webkit-touch-callout: none; }
input, textarea, [contenteditable="true"] { -webkit-user-select: text; user-select: text; -webkit-touch-callout: default; }

/* inline SVG icons (App.icon) — follow the button/text color they sit in */
.ic { display: inline-block; vertical-align: -0.22em; flex: 0 0 auto; pointer-events: none; }

/* ---------- top bar ---------- */

.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 10px 18px;
  /* iPad/iPhone home-screen app: keep the bar clear of the notch/rounded corners */
  padding-top: calc(10px + env(safe-area-inset-top, 0px));
  padding-left: calc(18px + env(safe-area-inset-left, 0px));
  padding-right: calc(18px + env(safe-area-inset-right, 0px));
  background: rgba(25, 21, 24, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 50;
  transition: transform 220ms ease;
}

@media (max-width: 1120px) and (min-width: 901px) { .brand .tag { display: none; } }

/* auto-hide while scrolling down (app.js wireAutoHideBar) */
.topbar.bar-hidden { transform: translateY(calc(-100% - 4px)); }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 27px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  white-space: nowrap;
}

.brand em {
  font-style: normal;
  color: var(--accent);
  text-shadow: 0 0 18px var(--accent-glow);
}

.brand svg { flex: 0 0 auto; }

/* soundLAB wordmark — custom letterforms, stems shaped like piano black keys */
.wordmark {
  height: 26px;
  width: auto;
  display: block;
}

.wordmark .wm-lab {
  filter: drop-shadow(0 0 10px var(--accent-glow));
}

/* workspace wipe — the curtain between Practice and Studio */
#wipe {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: #0d0b0e;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  will-change: transform;
}

.brand .tag {
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--accent-ink);
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  padding: 3px 9px;
  margin-left: 2px;
  text-shadow: none;
}

/* ---------- section tab bar (the app's main navigation) ----------
   Rendered twice by app.js: .tabbar-top sits in the top bar on wide
   screens, .tabbar-bottom is fixed along the bottom on phones / portrait
   tablets. It lives OUTSIDE the header on purpose: the header's
   backdrop-filter + auto-hide transform would trap a fixed child. */
.tabbar { display: flex; align-items: center; gap: 2px; }
.tabbar-top { margin-left: 10px; }
.tabbar-bottom { display: none; }

.tabbar-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 13px;
  border: 1px solid transparent;
  border-radius: 11px;
  background: transparent;
  color: var(--label);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.2px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: color 120ms ease, background 120ms ease, border-color 120ms ease;
}
@media (hover: hover) { .tabbar-btn:hover { color: var(--text); background: var(--card2); } }
.tabbar-btn.active {
  color: var(--accent-ink);
  background: var(--accent-soft);
  border-color: var(--accent-line);
}

/* accountability: a dot on Learn until today's XP goal is met (js/xp.js) */
.tabbar-btn { position: relative; }
.goal-due .tabbar-btn[data-group="gtheory"]::after {
  content: '';
  position: absolute;
  top: 5px;
  right: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 2px var(--bg);
}

/* corner tools: workspace, help, settings, lights, metronome — the four
   icons are quiet borderless squares (one size, one icon size), so the
   corner reads as one toolset instead of five equal-weight boxes */
.tb-tools { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.tb-tools .btn { height: var(--h-ctl); padding-top: 0; padding-bottom: 0; }
.icon-btn { display: inline-flex; align-items: center; justify-content: center; }
.tb-tools .icon-btn, .sheet-head .icon-btn { width: var(--h-ctl); height: var(--h-ctl); min-width: 0; padding: 0; }
.tb-tools .icon-btn { background: transparent; border-color: transparent; box-shadow: none; color: var(--label); }
@media (hover: hover) { .tb-tools .icon-btn:hover { background: var(--card2); border-color: var(--ctl-border); color: var(--text); } }
.tb-tools .icon-btn .ic { width: 20px; height: 20px; } /* one icon size, whatever App.icon was asked for */
#space-btn { display: inline-flex; align-items: center; gap: 5px; padding: 0 12px; }
#met-btn.on { color: var(--accent-ink); border-color: var(--accent-line); }
#met-btn.tick { box-shadow: 0 0 14px var(--accent-glow), inset 0 0 6px var(--accent-glow); }
#met-btn.active, #settings-btn.active, #lights-btn.active, #ctx-btn.active { color: var(--accent-ink); background: var(--accent-soft); border-color: var(--accent-line); }

/* ---------- overlay sheets (the metronome) ---------- */
.sheet {
  position: fixed;
  inset: 0;
  z-index: 420;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  background: rgba(8, 7, 9, 0.55);
}
.sheet[hidden] { display: none; }
.sheet-card {
  width: min(640px, 100%);
  max-height: calc(100vh - 48px);
  overflow: auto;
  overscroll-behavior: contain;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
  padding: 16px 20px 20px;
}
.sheet.open .sheet-card { animation: sheet-in 200ms ease-out; }
@keyframes sheet-in {
  from { opacity: 0; transform: translateY(14px) scale(0.985); }
  to { opacity: 1; transform: none; }
}
.sheet-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.sheet-head h2 {
  flex: 1;
  margin: 0;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
}

/* ---------- page pills + persistent context bar (key / scale / bpm / time) ---------- */

/* sub-tab strip: members of the active tab group (nav shows the group).
   Ordered right under the tab row / logo row — the section and its pages
   stay together; the context bar (order 2) follows with its own rule line.
   Quiet mixed-case pills: only the active one gets a fill and outline. */
.subnav {
  flex-basis: 100%;
  order: 1;
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  padding: 2px 0 0;
}

.subnav[hidden] { display: none; }

.subtab {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 14px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.2px;
  color: var(--label);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: color 120ms ease, background 120ms ease, border-color 120ms ease;
}
@media (hover: hover) { .subtab:hover { color: var(--text); background: var(--card2); } }

.subtab.active {
  color: var(--accent-ink);
  background: var(--accent-soft);
  border-color: var(--accent-line);
}

/* key / scale / mode / tempo / time: a dropdown under the clef button
   (#ctx-btn), tucked away until tapped — app.js setCtx / html.ctx-open */
.ctxbar {
  position: absolute;
  top: calc(100% + 6px);
  right: calc(18px + env(safe-area-inset-right, 0px));
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  width: max-content;
  max-width: min(720px, calc(100vw - 24px));
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  max-height: 70vh;
  max-height: min(70vh, calc(100dvh - 128px));
  overflow-y: auto;
  overscroll-behavior: contain;
}
html:not(.ctx-open) .ctxbar, .ctxbar[hidden] { display: none; }
.ctx-open .ctxbar { animation: ctx-in 140ms ease-out; }
@keyframes ctx-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
/* 1.3 (primer A2): the clef is an icon button like its five neighbours - same
   height, ghost until hovered / open - so the corner reads as ONE toolset;
   the caret and the capture dot ride along in its corners */
#ctx-btn { position: relative; }
.ctx-caret { position: absolute; right: 2px; bottom: 4px; width: 7px; height: 5px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; pointer-events: none; }
#ctx-btn[aria-expanded="true"] .ctx-caret { transform: rotate(180deg); }
#ctx-btn:disabled { opacity: 0.5; }
#ctxbar select, #ctxbar input[type="number"], #ctxbar button { min-height: 44px; }
#ctxbar button { min-width: 44px; }
@media (max-width: 600px) { #ctxbar select, #ctxbar input[type="number"] { font-size: 16px; } }
.cx-toggles { flex-basis: 100%; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding-top: 12px; border-top: 1px solid var(--line-soft); }
.cx-toggles .chip { gap: 6px; }
.cx-tnote { flex-basis: 100%; font-size: 12.5px; color: var(--muted); }
.cx-tnote[hidden] { display: none; }
/* scale lock: out-of-key on-screen keys read as unplayable */
.scale-locked .pn-key:not([data-dc]) { filter: brightness(0.45); cursor: not-allowed; }
/* Studio capture running (the ● lives in the dropdown) */
#ctx-btn.rec::after {
  content: '';
  position: absolute;
  top: 3px;
  right: 3px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 2px var(--bg);
}

.cx-field {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--label);
}

.ctxbar select, .ctxbar input[type="number"] {
  padding: 6px 9px;
  font-size: 14px;
  border-radius: 9px;
}

.ctxbar select { padding: 6px 30px 6px 10px; background-position: right 10px center; }
.ctxbar input[type="number"] { width: 68px; }

/* the transport: metronome glyph + play/stop in Practice, plain play/stop in
   the Studio (app.js paintCx) */
#cx-met { display: inline-flex; align-items: center; gap: 3px; padding: 0 12px; }
#cx-met.on { color: var(--accent-ink); border-color: var(--accent-line); }
#cx-met.tick { box-shadow: 0 0 14px var(--accent-glow), inset 0 0 6px var(--accent-glow); }

/* legacy tab contract (modules may still query .tab) — the tab row itself is
   gone, so these only need to be harmless */
.tabs { display: flex; gap: 2px; flex-wrap: wrap; }
.tab { background: transparent; color: var(--muted); border: none; cursor: pointer; }

main {
  max-width: 1150px;
  margin: 0 auto;
  padding: 26px 18px 70px;
}

.panel { display: none; }
.panel.active { display: block; animation: panel-in 240ms ease; }

@keyframes panel-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}

.foot {
  max-width: 1150px;
  margin: 0 auto;
  padding: 16px 18px 34px;
  color: var(--muted);
  font-size: 12.5px;
  letter-spacing: 0.2px;
  border-top: 1px solid var(--line);
}

/* ---------- cards ---------- */

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-1);
}

.card h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  text-wrap: balance;
}

.card h2::before {
  content: '';
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  margin: 0 10px 2px 0;
  background: var(--accent);
  box-shadow: 0 0 9px var(--accent-glow);
}

.card h3 {
  margin: 0 0 10px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1.8px;
}

.row { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.row.tight { gap: 8px; }
.spread { justify-content: space-between; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 820px) { .grid2 { grid-template-columns: 1fr; } }

.muted { color: var(--muted); }
.small { font-size: 12.5px; }

/* page tips tucked behind a quiet disclosure: one line until asked for */
details.tips { margin-top: 10px; font-size: 12.5px; color: var(--muted); }
details.tips > summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  color: var(--label);
}
details.tips > summary::-webkit-details-marker { display: none; }
details.tips > summary::before {
  content: '?';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border: 1.5px solid currentColor;
  border-radius: 50%;
  font-size: 10.5px;
  line-height: 1;
}
@media (hover: hover) { details.tips > summary:hover { color: var(--text); } }
details.tips[open] > summary { color: var(--accent-ink); }
details.tips > :not(summary) { margin-top: 4px; line-height: 1.55; }

.big-display {
  font-family: var(--font-display);
  font-size: 78px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  letter-spacing: 1px;
  text-shadow: 0 0 30px color-mix(in srgb, var(--accent) 12%, transparent);
}

.mid-display {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  line-height: 1.05;
}

/* ---------- buttons ---------- */

.btn {
  background: var(--card2);
  color: var(--text);
  border: 1px solid var(--ctl-border);
  border-radius: 11px;
  padding: 10px 18px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.2px;
  cursor: pointer;
  user-select: none;
  box-shadow: var(--shadow-1);
  transition: border-color 120ms ease, background 120ms ease, transform 60ms ease;
}

/* hover only where there IS hover — on touch it sticks after a tap and a
   pressed button looks selected */
@media (hover: hover) { .btn:hover { border-color: var(--accent-line); } }
.btn:active { transform: translateY(1px); background: var(--inset); }

.btn.primary {
  background: var(--accent);
  color: #221302;
  font-weight: 600;
  border-color: var(--accent);
}

@media (hover: hover) { .btn.primary:hover { filter: brightness(1.06); border-color: var(--accent); } }
.btn.primary:active { filter: brightness(0.94); background: var(--accent); }

.btn.danger { background: transparent; color: var(--red); border-color: color-mix(in srgb, var(--red) 55%, transparent); box-shadow: none; }
@media (hover: hover) { .btn.danger:hover { border-color: var(--red); background: color-mix(in srgb, var(--red) 7%, transparent); } }

.btn.big {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 14px 38px;
  border-radius: 13px;
}

.btn.sm { font-size: 13px; padding: 6px 12px; border-radius: 9px; }
/* ONE height for toolbar controls (--h-ctl: 34px, 38px on touch) so
   buttons, chips, segmented controls, selects and inputs line up in a row;
   .btn (40) and .btn.big stay the larger tiers for primary actions */
.btn.sm, .chip { min-height: var(--h-ctl); }
.chip.ar-mini { min-height: 0; } /* Timeline lane M/S/arm mini-chips */
.btn[disabled] { opacity: 0.4; cursor: default; }

/* ---------- form controls ---------- */

label.field {
  display: inline-flex;
  flex-direction: column;
  gap: 5px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--label);
}

/* the one small control label for inline toolbars ('Position', 'Perform',
   'Energy'…) — same voice as label.field, without the column layout.
   Casing rule: caps only for Bebas headings and these small field labels;
   nav, pills, buttons and chips are title case. */
.ctl-label {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--label);
}

select, input[type="number"], input[type="text"] {
  background-color: var(--card2);
  color: var(--text);
  border: 1px solid var(--ctl-border);
  border-radius: 10px;
  padding: 6px 12px;
  min-height: var(--h-ctl);
  font-size: 15px;
  font-weight: 500;
  font-family: var(--font-body);
}

/* Dropdowns read as flat app buttons with a chevron. The chevron is the ONLY
   background image, and it carries explicit repeat/position/size — a shorthand
   override elsewhere must never be able to tile it. */
select {
  appearance: none;
  -webkit-appearance: none;
  padding: 6px 36px 6px 13px;
  font-weight: 600;
  cursor: pointer;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23ffab47' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 12px 7px;
  box-shadow: var(--shadow-1);
  transition: border-color 120ms ease, background-color 120ms ease;
}

@media (hover: hover) { select:hover { border-color: var(--accent-line); } }
select:active { background-color: var(--inset); }
select option { background: var(--card); color: var(--text); font-weight: 500; }

/* typing fields + dropdowns: an accent halo instead of the outline; every
   other control (sliders, checkboxes, buttons) keeps the global ring */
select:focus, input[type="number"]:focus, input[type="text"]:focus { outline: none; border-color: var(--accent-line); }
select:focus-visible, input[type="number"]:focus-visible, input[type="text"]:focus-visible { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
input[type="range"]:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

input[type="checkbox"] { accent-color: var(--accent); width: 16px; height: 16px; }

/* flat platform-style range sliders */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  height: 30px;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 3px;
  background: var(--inset);
  border: 1px solid var(--ctl-border);
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  margin-top: -9px;
  background: var(--card);
  border: 2px solid var(--accent);
  box-shadow: var(--shadow-1);
}

input[type="range"]::-moz-range-track {
  height: 6px;
  border-radius: 3px;
  background: var(--inset);
  border: 1px solid var(--ctl-border);
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--card);
  border: 2px solid var(--accent);
  box-shadow: var(--shadow-1);
}

/* segmented control — sunken track, raised active pill */
.seg {
  display: inline-flex;
  background: var(--inset);
  border: 1px solid var(--ctl-border);
  border-radius: 10px;
  padding: 2px;
  min-height: var(--h-ctl); /* buttons stretch to fill */
}

.seg button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: transparent;
  color: var(--label);
  border: none;
  border-radius: 7px;
  padding: 4px 13px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: color 120ms ease, background 120ms ease;
}

.seg button.active {
  background: var(--card2);
  color: var(--accent-ink);
  box-shadow: var(--shadow-1);
}

/* chips */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--card2);
  border: 1px solid var(--ctl-border);
  border-radius: 999px;
  padding: 5px 13px;
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text);
  transition: border-color 120ms ease, color 120ms ease, background 120ms ease;
}
button.chip { cursor: pointer; }

/* on = a tint + outline (not just an outline, which reads as hover) */
.chip.active {
  background: var(--accent-soft);
  border-color: var(--accent-line);
  color: var(--accent-ink);
}

.legend-dot {
  display: inline-block;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  vertical-align: -1px;
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.4);
}

/* lists */
.list { margin: 0; padding: 0; list-style: none; }

.list li {
  padding: 8px 4px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 13.5px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.list li:last-child { border-bottom: none; }

.error {
  background: color-mix(in srgb, var(--red) 7%, transparent);
  border: 1px solid color-mix(in srgb, var(--red) 55%, transparent);
  color: var(--red);
  border-radius: var(--radius);
  padding: 14px 16px;
  font-size: 14px;
}

.good { color: var(--green); }
.bad { color: var(--red); }

svg { display: block; }
svg text { user-select: none; }
button .ic, .chip .ic { display: inline-block; }

/* ---------- module accents (higher specificity than injected module CSS) ---------- */

/* metronome beat dots as amber LEDs */
#panel-metronome .met-dot {
  width: 30px;
  height: 30px;
  background: var(--inset);
  border: 2px solid var(--ctl-border);
}

#panel-metronome .met-dot.met-acc {
  border-color: var(--accent-line);
}

#panel-metronome .met-dot.met-mute { opacity: 0.32; border-style: dashed; background: transparent; }

#panel-metronome .met-dot.met-on {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 18px var(--accent-glow);
  transform: scale(1.16);
}

/* scrollbars */
::-webkit-scrollbar { height: 10px; width: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--ctl-border); }

/* update banner */
#snd-hint, #back-hint, #xp-toast, #sd-toast {
  position: fixed;
  left: 50%;
  bottom: calc(18px + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%);
  z-index: 400;
  width: min(460px, calc(100vw - 32px));
  box-sizing: border-box;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid var(--accent);
  background: var(--card);
  color: var(--text);
  font-size: 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

#back-hint, #xp-toast, #sd-toast { width: auto; max-width: calc(100vw - 32px); text-align: center; }

#app-update {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 18px;
  z-index: 300;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--card);
  border: 1px solid var(--accent-line);
  border-radius: 14px;
  padding: 10px 16px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  font-size: 14px;
  max-width: calc(100vw - 24px);
  flex-wrap: wrap;
}

/* ---------- small screens ---------- */

/* phones + portrait tablets: the section tabs move to a fixed bottom bar */
@media (max-width: 900px) {
  .tabbar-top { display: none; }
  .tabbar-bottom {
    display: flex;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 60;
    gap: 0;
    padding: 4px calc(6px + env(safe-area-inset-right, 0px)) calc(4px + env(safe-area-inset-bottom, 0px)) calc(6px + env(safe-area-inset-left, 0px));
    background: rgba(25, 21, 24, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--line);
  }
  :root[data-theme="light"] .tabbar-bottom { background: rgba(250, 247, 242, 0.96); }
  .tabbar-bottom .tabbar-btn {
    flex: 1 1 0;
    min-width: 0;
    flex-direction: column;
    gap: 2px;
    padding: 6px 2px 4px;
    border: 0;
    border-radius: 10px;
    font-size: 11px;
    letter-spacing: 0.3px;
  }
  .tabbar-bottom .tabbar-btn.active { background: transparent; }
  /* the active section gets a soft pill behind its icon, not color alone */
  .tabbar-bottom .tabbar-btn .ic {
    box-sizing: content-box;
    width: 22px;
    height: 22px;
    padding: 4px 18px;
    border-radius: 999px;
    transition: background 150ms ease;
  }
  .tabbar-bottom .tabbar-btn.active .ic { background: var(--accent-soft); }
  .goal-due .tabbar-bottom .tabbar-btn[data-group="gtheory"]::after { top: 4px; right: calc(50% - 30px); }
  main { padding-bottom: calc(96px + env(safe-area-inset-bottom, 0px)); }
  .foot { padding-bottom: calc(84px + env(safe-area-inset-bottom, 0px)); }
  #snd-hint, #back-hint, #xp-toast, #sd-toast, #app-update { bottom: calc(84px + env(safe-area-inset-bottom, 0px)); }
}

@media (max-width: 640px) {
  .topbar { padding: 8px 12px 4px; gap: 8px 10px; }
  .brand .tag { display: none; }
  .brand { font-size: 21px; }
  .wordmark { height: 21px; }
  /* logo + workspace + four icons on ONE row down to 360 px */
  .tb-tools { gap: 2px; }
  #space-btn { padding: 0 10px; margin-right: 2px; }
}
/* 360-380 px phones: six corner controls still share the logo's row */
@media (max-width: 380px) {
  .tb-tools .icon-btn { width: 34px; height: 34px; }
  #space-btn { padding: 0 8px; margin-right: 0; }
}
@media (max-width: 640px) {
  /* the clef dropdown spans the screen: Key | Scale, then BPM | Time | ▶ */
  .ctxbar { left: 12px; right: 12px; width: auto; max-width: none; gap: 10px; padding: 14px; }
  .cx-field { gap: 5px; font-size: 10px; letter-spacing: 1px; }
  .cx-field.cx-scale { flex: 1 1 calc(100% - 120px); min-width: 0; }
  .cx-field.cx-scale select { flex: 1 1 0; min-width: 0; }
  .ctxbar input[type="number"] { width: 58px; }
  #cx-met { margin-left: auto; } /* transport (and the studio ●) on the right */
  /* the metronome becomes a bottom sheet */
  .sheet { align-items: flex-end; padding: 0; }
  .sheet-card {
    width: 100%;
    max-height: 88vh;
    border-radius: 18px 18px 0 0;
    border-bottom: 0;
    padding: 14px 14px calc(18px + env(safe-area-inset-bottom, 0px));
  }
  @keyframes sheet-in { from { transform: translateY(40px); opacity: 0.6; } to { transform: none; opacity: 1; } }
  main { padding: 18px 12px 60px; }
  .card { padding: 16px; }
  .big-display { font-size: 60px; }
}

/* narrowest phones: the workspace button keeps only its word */
@media (max-width: 400px) { #space-btn .ic { display: none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}