:root {
  --bg: #161824;
  --panel: #1f2233;
  --panel-2: #2a2e44;
  --text: #eceaf2;
  --muted: #9a9cb3;
  --accent: #5cc88c;
  --accent-ink: #0d2a1a;
  --bad: #ef5b5b;
  --rh: #5aa9ff;
  --lh: #ffab4c;
  --paper: #fbf9f4;
  --radius: 12px;
  --kb-h: clamp(110px, 20vh, 190px);
  color-scheme: dark;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  overflow: hidden;
  -webkit-user-select: none; user-select: none;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) 0 env(safe-area-inset-left);
}

.screen { display: none; height: 100%; flex-direction: column; }
.screen.active { display: flex; }
.hidden { display: none !important; }
.spacer { flex: 1; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

/* ---------- barre du haut ---------- */
.topbar {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; background: var(--panel);
  border-bottom: 1px solid #0006; flex-wrap: wrap;
}
.topbar.compact { padding: 6px 10px; }
.topbar h1 { font-size: 22px; margin: 0; }
.topbar h2 { font-size: 17px; margin: 0; }
.title-ellipsis { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 32vw; }

.btn {
  appearance: none; border: 0; border-radius: 10px;
  padding: 9px 14px; font: inherit; font-weight: 600;
  color: var(--text); background: var(--panel-2); cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px; justify-content: center;
}
.btn:active { transform: scale(.97); }
.btn.primary { background: var(--accent); color: var(--accent-ink); }
.btn.ghost { background: transparent; border: 1px solid #ffffff22; }
.btn.big { padding: 14px 22px; font-size: 18px; }
.btn.danger { color: var(--bad); }
.btn:disabled { opacity: .4; }

.seg { display: inline-flex; background: var(--bg); border-radius: 10px; padding: 3px; }
.seg button {
  border: 0; background: transparent; color: var(--muted); font: inherit; font-size: 14px;
  font-weight: 600; padding: 6px 10px; border-radius: 8px; cursor: pointer;
}
.seg button.on { background: var(--panel-2); color: var(--text); }
.seg button:disabled { opacity: .35; }

/* ---------- bibliothèque ---------- */
.library { flex: 1; overflow-y: auto; padding: 16px; -webkit-overflow-scrolling: touch; }
.hint { color: var(--muted); margin: 4px 0 16px; }
.song-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.song {
  background: var(--panel); border-radius: var(--radius); padding: 16px;
  display: flex; flex-direction: column; gap: 6px; cursor: pointer; border: 1px solid #ffffff10;
}
.song:active { background: var(--panel-2); }
.song .t { font-size: 18px; font-weight: 700; }
.song .meta { color: var(--muted); font-size: 13px; }
.song .row { display: flex; gap: 8px; align-items: center; margin-top: 6px; }
.tag { font-size: 11px; font-weight: 700; padding: 2px 7px; border-radius: 6px; background: var(--panel-2); color: var(--muted); }

/* ---------- pratique ---------- */
.practice-main { position: relative; flex: 1; min-height: 0; background: var(--paper); }
.view { position: absolute; inset: 0; }
#sheet-wrap { overflow-y: auto; overflow-x: hidden; -webkit-overflow-scrolling: touch; }
#sheet { padding: 8px 4px 40vh; }
#roll { width: 100%; height: 100%; display: block; background: #12141d; }

.practice-bar {
  display: flex; align-items: center; gap: 6px; padding: 4px 10px;
  background: var(--panel); border-top: 1px solid #0006;
}
.practice-bar .btn { padding: 6px 12px; }
.progress-txt { color: var(--muted); font-size: 14px; margin-left: 6px; }

.mic-state { display: inline-flex; align-items: center; gap: 8px; }
.mic-state .dot { width: 10px; height: 10px; border-radius: 50%; background: #555; }
.mic-state.on .dot { background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.meter { display: inline-block; width: 90px; height: 8px; background: var(--bg); border-radius: 4px; overflow: hidden; }
.meter i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .06s linear; }
.meter.wide { width: min(420px, 90%); height: 10px; }

.overlay {
  position: absolute; inset: 0; background: #0b0c12cc; display: flex;
  align-items: center; justify-content: center; z-index: 5; padding: 16px;
}
.card {
  background: var(--panel); border-radius: 16px; padding: 24px; max-width: 440px; width: 100%;
  display: flex; flex-direction: column; gap: 12px; text-align: center; box-shadow: 0 20px 60px #0008;
}
.card h3 { margin: 0; font-size: 22px; }
.card p { margin: 0; color: var(--muted); }
.card .row { display: flex; gap: 10px; justify-content: center; }
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; text-align: left; }
.stats div { background: var(--bg); border-radius: 10px; padding: 10px 12px; }
.stats b { display: block; font-size: 22px; }
.stats span { color: var(--muted); font-size: 13px; }
.stats .full { grid-column: 1 / -1; }

/* ---------- clavier ---------- */
.keyboard {
  position: relative; height: var(--kb-h); background: #0b0c12; flex: none;
  padding-bottom: env(safe-area-inset-bottom); touch-action: none;
}
.key { position: absolute; top: 0; border-radius: 0 0 5px 5px; }
.key.white { background: #f4f2ec; height: 100%; border: 1px solid #0b0c12; border-top: 0; }
.key.black { background: #1c1c22; height: 62%; z-index: 2; border: 1px solid #000;
  background-image: linear-gradient(#2b2b33, #121216); }
.key .lbl { position: absolute; bottom: 6px; left: 0; right: 0; text-align: center; font-size: 10px; color: #888; pointer-events: none; }
.key .fg { position: absolute; bottom: 36px; left: 0; right: 0; text-align: center; font-size: 15px; font-weight: 800; pointer-events: none; color: #1c1c22; }
.key.black .fg { bottom: 8px; color: #0b0c12; }
.key.exp-R.white { background: #cfe5ff; box-shadow: inset 0 -30px 0 var(--rh); }
.key.exp-L.white { background: #ffe6c8; box-shadow: inset 0 -30px 0 var(--lh); }
.key.exp-R.black { background: var(--rh); }
.key.exp-L.black { background: var(--lh); }
.key.exp-sat.white { box-shadow: inset 0 -30px 0 var(--accent); background: #d7f5e3; }
.key.exp-sat.black { background: var(--accent); }
.key.flash-ok { background: var(--accent) !important; }
.key.flash-bad { background: var(--bad) !important; }
.key.sounding.white { background: #d7f5e3; }
.key.sounding.black { background: var(--accent); }

/* ---------- test micro ---------- */
.mictest { flex: 1; overflow-y: auto; padding: 20px; display: flex; flex-direction: column; align-items: center; gap: 14px; text-align: center; }
.mictest p { max-width: 560px; margin: 0; color: var(--muted); }
.big-note { font-size: 72px; font-weight: 800; min-height: 90px; letter-spacing: 1px; }
.mt-list { min-height: 28px; color: var(--muted); font-variant-numeric: tabular-nums; }
.slider { display: flex; align-items: center; gap: 12px; font-weight: 600; }
.slider input { width: 220px; }

/* ---------- divers ---------- */
dialog { background: var(--panel); color: var(--text); border: 0; border-radius: 16px; max-width: 520px; padding: 20px 24px; }
dialog::backdrop { background: #000a; }
dialog h3 { margin: 6px 0; }
dialog li { margin: 4px 0; }

.toast {
  position: fixed; left: 50%; bottom: 30px; transform: translateX(-50%) translateY(20px);
  background: var(--panel-2); padding: 10px 16px; border-radius: 10px; opacity: 0;
  transition: .25s; pointer-events: none; z-index: 50; max-width: 90vw; text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%); }

@media (max-width: 760px) {
  .topbar.compact .seg button { padding: 5px 7px; font-size: 13px; }
  .title-ellipsis { max-width: 60vw; }
}

/* ---------- enregistrement d'échantillon ---------- */
.rec-box { max-width: 560px; width: 100%; text-align: left; background: var(--panel); border-radius: var(--radius); padding: 12px 16px; }
.rec-box summary { font-weight: 700; cursor: pointer; }
.rec-box ol { color: var(--muted); padding-left: 20px; }
.rec-box .row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

/* ---------- mode Lecture ---------- */
.auto-ctrl { display: flex; align-items: center; gap: 6px; }
.auto-ctrl .bpm { min-width: 70px; text-align: center; font-variant-numeric: tabular-nums; }
.auto-ctrl .bpm small { color: var(--muted); }
.btn.toggle { opacity: .55; }
.btn.toggle.on { opacity: 1; background: var(--panel-2); }

/* ---------- édition des doigtés ---------- */
.finger-panel { background: var(--panel); border-top: 1px solid #0006; padding: 6px 10px; display: flex; flex-direction: column; gap: 4px; }
.finger-row { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.finger-row .who { min-width: 92px; font-weight: 700; }
.finger-row .who.R { color: var(--rh); }
.finger-row .who.L { color: var(--lh); }
.finger-row button { min-width: 40px; padding: 6px 0; }
.finger-row button.on { background: var(--accent); color: var(--accent-ink); }