/* ═════════════════════════════════════════════════════════════════════════════
   DESIGN SYSTEM PARTAGÉ — extrait tel quel de piano/index.html (2301 lignes)
   lors de la refonte multi-fichiers du 2026-07-14 (voir REFONTE-SPECS.md).

   Variables :root, reset, header, filtres/chips, cartes, clavier (mini-piano +
   scale-piano), patterns MG, cellules mélodiques, notes pédagogiques. Le rendu
   clavier est laissé ici comme référence pour le futur manche guitare.
   Layout responsive (grille multi-colonnes desktop / 1 colonne mobile) : voir
   les règles .fiche-grid en fin de fichier, propres à la refonte.
   ═════════════════════════════════════════════════════════════════════════════ */
:root {
  --bg-1: #0a0e1a;
  --bg-2: #131829;
  --line: #2a3556;
  --line-soft: #1f2740;
  --text: #e8edf7;
  --text-dim: #8b95b2;
  --text-faint: #5a6488;
  --accent: #fb923c;
  --accent-2: #4ade80;
  --md: #c4b5fd;

  /* Sections de chanson (intro/couplet/pont/refrain…) — une teinte par type,
     le refrain doit ressortir le plus (repère visuel principal). */
  --sec-intro: #64748b;
  --sec-verse: #38bdf8;
  --sec-chorus: #f472b6;
  --sec-bridge: #a78bfa;
  --sec-interlude: #94a3b8;
  --sec-solo: #fbbf24;
  --sec-outro: #64748b;

  /* Qualités d'accord (Volet 3 — browser d'accords) — une teinte par qualité,
     réutilisée pour la couleur des cartes et les chips de filtre qualité. */
  --qual-maj: #fb923c;
  --qual-min: #38bdf8;
  --qual-dom7: #f472b6;
  --qual-min7: #a78bfa;
  --qual-maj7: #fbbf24;
  --qual-sus4: #4ade80;
  --qual-sus2: #2dd4bf;
  --qual-sus: #4ade80;
  --qual-add9: #c4b5fd;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  min-height: 100vh;
  background:
    radial-gradient(ellipse at top, #1a2138 0%, transparent 50%),
    linear-gradient(180deg, #0a0e1a 0%, #0f1424 100%);
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  color: var(--text);
  padding: 22px 12px 60px;
  line-height: 1.4;
}
.container { max-width: 860px; margin: 0 auto; }

/* ─── Header ───────────────────────────────────────────────────────────── */
header {
  text-align: center;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-soft);
}
h1 {
  font-size: 22px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
h1 .accent { color: var(--accent); font-style: italic; }
.subtitle { color: var(--text-faint); font-size: 12px; letter-spacing: 0.04em; }
.stat {
  margin-top: 8px;
  font-size: 10.5px;
  color: var(--text-faint);
  font-family: ui-monospace, monospace;
  letter-spacing: 0.1em;
}
.stat strong { color: var(--accent); font-weight: 600; }

/* ─── Filtres ──────────────────────────────────────────────────────────── */
.filters {
  background: rgba(19, 24, 41, 0.7);
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  padding: 12px 12px 10px;
  margin-bottom: 18px;
}
.filter-row { margin-bottom: 9px; }
.filter-row:last-child { margin-bottom: 0; }
.filter-label {
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-faint);
  margin-bottom: 5px;
  font-family: ui-monospace, monospace;
}
.chip-group { display: flex; flex-wrap: wrap; gap: 5px; }
.chip {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text-dim);
  border-radius: 999px;
  padding: 4px 11px;
  font-size: 11.5px;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
}
.chip:hover { border-color: #475569; color: var(--text); }
.chip.on { background: var(--text); color: var(--bg-1); border-color: var(--text); font-weight: 600; }
.reset-row { display: flex; justify-content: space-between; align-items: center; padding-top: 4px; }
.reset-btn {
  background: transparent;
  border: 1px dashed var(--line);
  color: var(--text-faint);
  border-radius: 6px;
  padding: 4px 9px;
  font-size: 10.5px;
  cursor: pointer;
  font-family: ui-monospace, monospace;
}
.reset-btn:hover { color: var(--text); border-color: #475569; }
.results-count { font-size: 10.5px; color: var(--text-faint); font-family: ui-monospace, monospace; }

/* ─── Liste progressions ───────────────────────────────────────────────── */
.cat-header {
  margin: 22px 0 9px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line-soft);
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.cat-header:first-of-type { margin-top: 0; }
.cat-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--text);
}
.cat-count {
  font-size: 10.5px;
  color: var(--text-faint);
  font-family: ui-monospace, monospace;
  margin-left: auto;
}
.prog-list { display: flex; flex-direction: column; gap: 6px; }
.prog-btn {
  display: flex;
  align-items: center;
  gap: 11px;
  background: rgba(26, 33, 56, 0.5);
  border: 1px solid var(--line-soft);
  border-radius: 9px;
  padding: 9px 12px;
  cursor: pointer;
  text-align: left;
  transition: all 0.15s;
  color: var(--text);
  font-family: inherit;
  width: 100%;
}
.prog-btn:hover { background: rgba(26, 33, 56, 0.9); }
.prog-dot { width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }
.prog-info { flex: 1; min-width: 0; }
.prog-name {
  font-weight: 600;
  font-size: 13.5px;
  font-family: ui-monospace, monospace;
  color: #cbd5e1;
}
.prog-btn.active .prog-name { color: #f8fafc; }
.prog-sub { font-size: 11px; color: var(--text-faint); margin-top: 1px; font-style: italic; }
.badges { display: flex; gap: 5px; flex-shrink: 0; align-items: center; }
.badge {
  font-size: 8.5px;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(71, 85, 105, 0.3);
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: ui-monospace, monospace;
}
.badge.notes-4 { background: rgba(168, 85, 247, 0.18); color: #c4b5fd; }
.dots { display: flex; gap: 3px; }
.dot { width: 5px; height: 5px; border-radius: 50%; background: var(--line); }
.dot.on { background: var(--accent); }

/* ─── Fiche d'impro (le gros morceau) ──────────────────────────────────── */
.fiche {
  margin-top: 22px;
  background: rgba(10, 14, 26, 0.9);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
/* En-tête de la fiche */
.fiche-head {
  padding: 14px 16px 12px;
  border-bottom: 1px solid var(--line-soft);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  align-items: baseline;
}
.fiche-title {
  font-size: 17px;
  font-weight: 700;
  color: #f8fafc;
  font-family: ui-monospace, monospace;
  letter-spacing: 0.02em;
}
.fiche-meta {
  display: flex;
  gap: 14px;
  font-size: 11px;
  color: var(--text-dim);
  font-family: ui-monospace, monospace;
  flex-wrap: wrap;
}
.fiche-meta b { color: var(--text); font-weight: 600; }
.fiche-mood {
  font-size: 13px;
  color: var(--accent);
  font-style: italic;
  margin-top: 6px;
  flex-basis: 100%;
}

/* Bloc commun aux sections de la fiche */
.fb {
  padding: 13px 16px;
  border-bottom: 1px solid var(--line-soft);
}
.fb:last-child { border-bottom: none; }
.fb-label {
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-faint);
  margin-bottom: 9px;
  font-family: ui-monospace, monospace;
  display: flex;
  align-items: center;
  gap: 8px;
}
.fb-label .em { font-size: 13px; }

/* ─── Bloc des accords : clavier de référence + lignes d'activation empilées
   (une par accord, alignées en colonnes avec le clavier) ─────────────────── */
.chord-legend {
  display: flex;
  gap: 16px;
  font-size: 10px;
  color: var(--text-faint);
  margin-bottom: 10px;
  font-family: ui-monospace, monospace;
  flex-wrap: wrap;
}
.chord-legend .ld {
  width: 9px;
  height: 9px;
  border-radius: 3px;
  display: inline-block;
  margin-right: 5px;
  vertical-align: middle;
}
.chord-legend .ld-both { border: 2px solid var(--accent); }

.chord-stack { user-select: none; overflow-x: auto; }

/* ─── Ligne d'accord = un clavier réaliste multi-octaves (proportions
   identiques au piano roll : blanches pleine largeur, noires étroites
   décalées). Fond noir/blanc JAMAIS masqué, couleurs en overlay par-dessus. */
.actrow { position: relative; height: 46px; flex-shrink: 0; }
.actrow .wkey {
  position: absolute;
  top: 0;
  height: 100%;
  border: 1px solid #334155;
  background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
  z-index: 1;
}
.actrow .bkey {
  position: absolute;
  top: 0;
  height: 62%;
  border-radius: 0 0 2px 2px;
  background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
  z-index: 2;
}

/* Overlay de couleur par-dessus une touche (basse MG, accord MD, ou les deux) */
.key-overlay {
  position: absolute;
  top: 4px;
  bottom: 4px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 2px;
  font-size: 9px;
  font-weight: 900;
  font-family: ui-monospace, monospace;
  color: #fff;
  border-radius: 0 0 3px 3px;
  opacity: 0.92;
  z-index: 3;
}
.key-overlay.on-black { top: 2px; bottom: 40%; z-index: 4; }
.key-overlay.ov-bass-hit { border: 2px solid var(--accent); box-sizing: border-box; }

/* Ligne d'accord empilée : label à gauche, clavier d'activation à droite,
   scroll horizontal indépendant si le clavier dépasse la largeur dispo */
.chord-stack-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 0;
  border-top: 1px solid var(--line-soft);
}
.chord-stack-row:first-of-type { border-top: none; }
.csr-label {
  flex-shrink: 0;
  width: 108px;
  font-family: ui-monospace, monospace;
  line-height: 1.3;
}
.csr-name { font-size: 13px; font-weight: 700; }
.csr-roman { font-size: 10px; color: var(--text-faint); font-style: italic; margin-left: 4px; }
.csr-bass { display: block; font-size: 9.5px; color: var(--text-faint); }
.csr-bass b { color: var(--accent); }

/* ─── Cellules mélodiques : mini-clavier avec ordre de jeu (ajout refonte) ── */
.melo-kbd { position: relative; height: 40px; margin: 6px 0; user-select: none; }
.melo-kbd .whites { display: flex; height: 100%; }
.melo-kbd .wkey {
  flex: 1;
  border: 1px solid #334155;
  border-radius: 0 0 4px 4px;
  background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 2px;
  font-size: 8px;
  font-weight: 900;
  color: #0f172a;
  font-family: ui-monospace, monospace;
}
.melo-kbd .wkey.active { color: #fff; }
.melo-kbd .blacks { position: absolute; top: 0; left: 0; right: 0; height: 100%; pointer-events: none; }
.melo-kbd .bkey {
  position: absolute; top: 0;
  height: 60%;
  border-radius: 0 0 3px 3px;
  background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
  z-index: 2;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 2px;
  font-size: 7px;
  font-weight: 900;
  color: #fff;
  font-family: ui-monospace, monospace;
}

/* ─── Bloc gamme d'impro ───────────────────────────────────────────────── */
.scale-row {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.scale-name-txt {
  font-size: 13px;
  color: var(--accent-2);
  font-style: italic;
  font-family: ui-monospace, monospace;
}
.scale-extra {
  font-size: 11px;
  color: var(--text-faint);
  font-style: italic;
}
.scale-piano-wrap {
  position: relative;
  height: 90px;
  user-select: none;
}
.scale-piano-wrap .whites { display: flex; height: 100%; }
.scale-piano-wrap .wkey {
  flex: 1;
  border: 1px solid #334155;
  border-radius: 0 0 5px 5px;
  background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 4px;
  font-size: 9px;
  font-weight: 900;
  color: #0f172a;
  line-height: 1.1;
  text-align: center;
  font-family: ui-monospace, monospace;
  white-space: pre;
}
.scale-piano-wrap .wkey.scale {
  background: linear-gradient(180deg, #4ade80 0%, #22c55e 100%);
  color: #14532d;
}
.scale-piano-wrap .wkey.tonic {
  background: linear-gradient(180deg, #22c55e 0%, #15803d 100%);
  color: #fff;
  box-shadow: 0 0 8px rgba(74, 222, 128, 0.5);
}
.scale-piano-wrap .blacks {
  position: absolute; top: 0; left: 0; right: 0; height: 100%;
  pointer-events: none;
}
.scale-piano-wrap .bkey {
  position: absolute; top: 0;
  height: 60%;
  border-radius: 0 0 4px 4px;
  background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
  z-index: 2;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 2px;
  font-size: 8px;
  font-weight: 700;
  color: #fff;
  font-family: ui-monospace, monospace;
}
.scale-piano-wrap .bkey.scale {
  background: linear-gradient(180deg, #16a34a 0%, #14532d 100%);
}
.scale-piano-wrap .bkey.tonic {
  background: linear-gradient(180deg, #16a34a 0%, #052e16 100%);
  box-shadow: 0 0 8px rgba(22, 163, 74, 0.7);
}

/* ─── Patterns MG repliés par défaut (accordéon <details>/<summary>) ───── */
.pat-details summary.fb-label {
  cursor: pointer;
  list-style: none;
}
.pat-details summary.fb-label::-webkit-details-marker { display: none; }
.pat-details summary.fb-label::after {
  content: "▸";
  margin-left: auto;
  color: var(--text-faint);
  font-size: 11px;
}
.pat-details[open] summary.fb-label::after { content: "▾"; }
.pat-details .rhythm-legend,
.pat-details #patternsContainer { margin-top: 4px; }

/* ─── Patterns MG (visuels, timeline en croches) ───────────────────────── */
.pattern-card {
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  padding: 10px 12px 10px;
  margin-bottom: 8px;
}
.pattern-card:last-child { margin-bottom: 0; }
.pattern-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.pattern-name {
  font-size: 13px;
  font-weight: 700;
  color: #f8fafc;
}
.pattern-feel {
  font-size: 11px;
  color: var(--text-dim);
  font-style: italic;
  flex: 1;
  min-width: 110px;
}

/* Timeline rythmique : 8 cases (croches) = 4 temps */
.timeline {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 3px;
  margin: 6px 0 16px;
  height: 36px;
  position: relative;
}
.tl-cell {
  background: rgba(71, 85, 105, 0.25);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.tl-cell.beat-strong { background: rgba(71, 85, 105, 0.45); }
.tl-cell.bar-start { box-shadow: inset 2px 0 0 var(--accent); } /* frontière de mesure (patterns 2 mes.) */
.tl-mark {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}
.tl-mark.bass { background: var(--accent); box-shadow: 0 0 6px var(--accent); }
.tl-mark.chord { background: #94a3b8; }
.tl-mark.both {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent) 50%, #94a3b8 50%);
  box-shadow: 0 0 6px var(--accent);
}
.tl-num {
  position: absolute;
  bottom: -14px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 9px;
  color: var(--text-faint);
  font-family: ui-monospace, monospace;
}

.pattern-desc {
  font-size: 11.5px;
  color: var(--text-dim);
  margin-top: 4px;
  line-height: 1.45;
}
.pattern-desc b { color: var(--accent); font-weight: 600; }
.pattern-desc .chordtxt { color: #94a3b8; }

.rhythm-legend {
  display: flex;
  gap: 16px;
  font-size: 10px;
  color: var(--text-faint);
  margin-bottom: 10px;
  font-family: ui-monospace, monospace;
  flex-wrap: wrap;
}
.rhythm-legend .ld {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 5px;
  vertical-align: middle;
}

/* ─── Cellules MD (idées mélodiques) ───────────────────────────────────── */
.melo-card {
  background: rgba(30, 41, 59, 0.4);
  border: 1px solid var(--line-soft);
  border-left: 2px solid rgba(74, 222, 128, 0.5);
  border-radius: 6px;
  padding: 8px 11px;
  margin-bottom: 7px;
}
.melo-card:last-child { margin-bottom: 0; }
.melo-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 4px;
  flex-wrap: wrap;
}
.melo-name {
  font-size: 12.5px;
  font-weight: 700;
  color: #d1fae5;
}
.melo-mood {
  font-size: 10.5px;
  color: var(--text-faint);
  font-style: italic;
}
.melo-tip {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 3px;
  font-style: italic;
  line-height: 1.4;
}

/* ─── Notes pédagogiques ───────────────────────────────────────────────── */
.notes-ped {
  padding: 10px 14px;
  border-left: 2px solid var(--accent);
  background: rgba(251, 146, 60, 0.06);
  border-radius: 0 6px 6px 0;
  font-size: 12px;
  color: #cbd5e1;
  line-height: 1.5;
  margin: 4px 16px 14px;
}
.notes-ped b { color: #fed7aa; font-weight: 600; }

.empty {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-faint);
  font-style: italic;
  font-size: 13px;
}

/* ─── Grille d'accords enchaînée (ajout refonte) — empilée verticalement,
   un accord par ligne dans l'ordre de la progression ─────────────────────── */
.chord-strip {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-width: 260px;
}
.chord-strip-cell {
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  padding: 7px 11px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.chord-strip-cell .cs-name {
  font-family: ui-monospace, monospace;
  font-weight: 700;
  font-size: 13px;
  min-width: 48px;
}
.chord-strip-cell .cs-roman {
  font-size: 10px;
  color: var(--text-faint);
  font-style: italic;
  min-width: 24px;
}
.chord-strip-cell .cs-notes {
  font-size: 10px;
  color: var(--text-dim);
  font-family: ui-monospace, monospace;
}
.chord-strip-arrow {
  align-self: center;
  color: var(--text-faint);
  font-size: 12px;
  line-height: 1;
}

/* ─── Piano roll (ajout refonte) — clavier horizontal en haut, aligné en
   colonnes avec la grille ; le temps descend verticalement en dessous ──── */
.roll-wrap-v {
  display: flex;
  flex-direction: column;
  overflow-x: auto;
}
.roll-keys-v {
  position: relative;
  flex-shrink: 0;
  height: 20px;
}
.roll-key-v {
  border: 1px solid #334155;
  font-size: 6px;
  color: #0f172a;
  font-family: ui-monospace, monospace;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 1px;
  top: 0;
  bottom: 0;
  background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
  z-index: 1;
}
.roll-key-v.black {
  bottom: 38%;
  background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
  color: #94a3b8;
  border-radius: 0 0 2px 2px;
  z-index: 2;
}
.roll-grid-v {
  position: relative;
  flex-shrink: 0;
}
.roll-col-v {
  border-right: 1px solid #334155;
  background: rgba(248, 250, 252, 0.06);
}
.roll-col-v.black-col {
  background: rgba(0,0,0,0.55);
  border-right: none;
}
.roll-bar-v {
  position: absolute;
  border-radius: 3px;
  opacity: 0.9;
}
.roll-bar-v.bass { box-shadow: 0 0 5px rgba(0,0,0,0.4); }
.roll-bar-v.melody { box-shadow: 0 0 5px rgba(0,0,0,0.4); border: 1px solid rgba(255,255,255,0.35); }
.roll-mode-switch { margin-bottom: 10px; }
.roll-chordsep-v {
  position: absolute;
  left: 0;
  right: 0;
  border-top: 1px dashed var(--line);
}

/* ═════════════════════════════════════════════════════════════════════════════
   GUITARE — diagrammes de manche, tablature, accordeur chromatique
   (Sonnet #3, sur les données Opus data-guitare.js). Même esprit que le
   clavier piano : dessiné à la main, fond neutre, couleurs en overlay.
   ═════════════════════════════════════════════════════════════════════════════ */

/* ─── Diagramme de manche (6 cordes × 5 cases) ─────────────────────────────
   Grille : cordes en colonnes (6 grave → 1 aiguë, gauche → droite), cases en
   lignes (haut = sillet/case 1). Cercles pleins = doigt, ○ = à vide, ✕ = étouffée. */
.neck-diagram {
  --nd-cols: 6;
  --nd-rows: 5;
  position: relative;
  width: 100%;
  max-width: 168px;
  aspect-ratio: 168 / 150;
  margin: 4px auto 26px;
  user-select: none;
}
.neck-nut {
  position: absolute;
  top: 12%; left: 0; right: 0;
  height: 4px;
  background: var(--text);
  border-radius: 2px;
}
.neck-strings { position: absolute; top: 12%; bottom: 0; left: 0; right: 0; }
.neck-string {
  position: absolute;
  top: 0; bottom: 0;
  width: 1px;
  background: var(--line);
}
.neck-frets { position: absolute; top: 12%; bottom: 0; left: 0; right: 0; }
.neck-fretline {
  position: absolute;
  left: 0; right: 0;
  height: 1px;
  background: var(--line);
}
.neck-basefret {
  position: absolute;
  left: -18px;
  top: 12%;
  transform: translateY(-2px);
  font-size: 9px;
  color: var(--text-faint);
  font-family: ui-monospace, monospace;
}
.neck-marker {
  position: absolute;
  width: 20px;
  height: 20px;
  margin-left: -10px;
  margin-top: -10px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9.5px;
  font-weight: 900;
  font-family: ui-monospace, monospace;
  color: #fff;
  z-index: 3;
}
/* Trait de barré : capsule horizontale reliant les cordes couvertes, derrière
   les ronds de doigté (z-index inférieur à .neck-marker). Positionné en %,
   comme le reste du diagramme (jamais de px fixes). */
.neck-barre {
  position: absolute;
  height: 16px;
  margin-top: -8px;
  border-radius: 999px;
  opacity: 0.55;
  z-index: 2;
}
.neck-open, .neck-muted {
  position: absolute;
  top: -14px;
  width: 14px;
  height: 14px;
  margin-left: -7px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-family: ui-monospace, monospace;
  font-weight: 700;
}
.neck-open { color: var(--accent-2); border: 1.5px solid var(--accent-2); border-radius: 50%; }
.neck-muted { color: var(--text-faint); }
.neck-stringnum {
  position: absolute;
  bottom: -16px;
  font-size: 8px;
  color: var(--text-faint);
  font-family: ui-monospace, monospace;
  transform: translateX(-50%);
}

/* ─── Fiche accord : diagramme + méta ──────────────────────────────────── */
.gchord-card {
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  padding: 10px 10px 4px;
  text-align: center;
}
.gchord-label {
  font-size: 13px;
  font-weight: 700;
  color: #f8fafc;
  font-family: ui-monospace, monospace;
}
.gchord-fr {
  font-size: 10.5px;
  color: var(--text-faint);
  font-style: italic;
  margin-bottom: 2px;
}
.gchord-open {
  font-size: 10px;
  color: var(--text-dim);
  margin: 2px 0 6px;
  line-height: 1.4;
}
.gchord-tip {
  font-size: 10.5px;
  color: var(--text-dim);
  font-style: italic;
  line-height: 1.4;
  padding: 6px 2px 10px;
  border-top: 1px solid var(--line-soft);
  margin-top: 4px;
  text-align: left;
}
.gchord-tip b { color: var(--accent); font-weight: 600; }
.gchord-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}

/* ─── Frise d'accords enchaînés (réutilise chord-strip en ligne) ───────── */
.gchord-strip {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  overflow-x: auto;
  padding-bottom: 4px;
}
.gchord-strip-arrow {
  align-self: center;
  color: var(--text-faint);
  font-size: 14px;
}

/* ─── Tablature (frise corde/case, sans solfège) ───────────────────────── */
.tab-wrap { overflow-x: auto; padding-bottom: 6px; }
.tab-grid {
  display: inline-flex;
  gap: 2px;
}
.tab-col {
  display: flex;
  flex-direction: column;
  min-width: 46px;
  border-right: 1px dashed var(--line-soft);
  padding: 0 6px;
}
.tab-col:last-child { border-right: none; }
.tab-chordname {
  text-align: center;
  font-size: 11.5px;
  font-weight: 700;
  font-family: ui-monospace, monospace;
  margin-bottom: 4px;
}
.tab-string-row {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: ui-monospace, monospace;
  font-size: 11px;
  line-height: 1.9;
  border-top: 1px solid var(--line-soft);
}
.tab-string-name { width: 14px; color: var(--text-faint); font-size: 9px; }
.tab-fret {
  flex: 1;
  text-align: center;
  color: var(--text);
  font-weight: 700;
}
.tab-fret.tab-open { color: var(--accent-2); }
.tab-fret.tab-muted { color: var(--text-faint); font-weight: 400; }

/* ─── Accordeur chromatique ─────────────────────────────────────────────── */
.tuner-box {
  text-align: center;
  padding: 14px 10px 18px;
}
.tuner-note {
  font-size: 46px;
  font-weight: 700;
  font-family: ui-monospace, monospace;
  color: var(--text);
  line-height: 1;
  margin-bottom: 6px;
}
.tuner-freq {
  font-size: 11px;
  color: var(--text-faint);
  font-family: ui-monospace, monospace;
  margin-bottom: 14px;
}
.tuner-gauge {
  position: relative;
  width: min(320px, 90%);
  height: 10px;
  margin: 0 auto 8px;
  background: var(--line-soft);
  border-radius: 999px;
  overflow: hidden;
}
.tuner-gauge::before {
  content: "";
  position: absolute;
  left: 50%; top: 0; bottom: 0;
  width: 2px;
  background: var(--text-faint);
}
.tuner-needle {
  position: absolute;
  top: 0; bottom: 0;
  width: 4px;
  border-radius: 2px;
  background: var(--accent-2);
  left: 50%;
  transform: translateX(-50%);
  transition: left 0.08s linear, background 0.15s;
}
.tuner-needle.tuner-off { background: var(--accent); }
.tuner-status {
  font-size: 11px;
  color: var(--text-dim);
  font-style: italic;
  min-height: 16px;
}
.tuner-btn {
  margin-top: 12px;
  background: transparent;
  border: 1px solid var(--accent-2);
  color: var(--accent-2);
  border-radius: 999px;
  padding: 7px 18px;
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
}
.tuner-btn:hover { background: rgba(74, 222, 128, 0.1); }
.tuner-btn:disabled { opacity: 0.5; cursor: default; }
.tuner-fallback {
  font-size: 11.5px;
  color: var(--text-faint);
  font-style: italic;
  line-height: 1.5;
  max-width: 380px;
  margin: 0 auto;
}
.tuner-fallback a { color: var(--accent-2); }

/* ═════════════════════════════════════════════════════════════════════════════
   SECTIONS DE CHANSON (intro/couplet/pont/refrain…) — Volet 1 §5
   ═════════════════════════════════════════════════════════════════════════════ */
.section-label {
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-family: ui-monospace, monospace;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 999px;
  display: inline-block;
  margin: 14px 0 6px;
}
.section-label:first-child { margin-top: 0; }
.section-label.sec-intro     { background: color-mix(in srgb, var(--sec-intro) 22%, transparent);     color: var(--sec-intro); }
.section-label.sec-verse     { background: color-mix(in srgb, var(--sec-verse) 22%, transparent);     color: var(--sec-verse); }
.section-label.sec-chorus    { background: color-mix(in srgb, var(--sec-chorus) 30%, transparent);    color: var(--sec-chorus); font-size: 10.5px; }
.section-label.sec-bridge    { background: color-mix(in srgb, var(--sec-bridge) 22%, transparent);    color: var(--sec-bridge); }
.section-label.sec-interlude { background: color-mix(in srgb, var(--sec-interlude) 22%, transparent); color: var(--sec-interlude); }
.section-label.sec-solo      { background: color-mix(in srgb, var(--sec-solo) 22%, transparent);      color: var(--sec-solo); }
.section-label.sec-outro     { background: color-mix(in srgb, var(--sec-outro) 22%, transparent);     color: var(--sec-outro); }

.section-group { margin-bottom: 4px; }

/* Bande de frontière de section dans le piano roll (largeur = clavier) */
.roll-section-sep {
  position: absolute;
  left: 0;
  right: 0;
  height: 18px;
  display: flex;
  align-items: center;
  padding-left: 4px;
  font-size: 8.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-family: ui-monospace, monospace;
  z-index: 6;
  border-top: 1px solid rgba(255,255,255,0.25);
  color: #fff;
}

/* ═════════════════════════════════════════════════════════════════════════════
   BADGE bestOn — Volet 1 §7.2
   ═════════════════════════════════════════════════════════════════════════════ */
.badge.badge-bestOn {
  background: rgba(74, 222, 128, 0.15);
  color: var(--accent-2);
}

/* ═════════════════════════════════════════════════════════════════════════════
   RECHERCHE — Volet 1 §7.1
   ═════════════════════════════════════════════════════════════════════════════ */
.search-row { margin-bottom: 9px; }
.search-input {
  width: 100%;
  background: rgba(10, 14, 26, 0.6);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  font-family: inherit;
}
.search-input::placeholder { color: var(--text-faint); }
.search-input:focus { outline: none; border-color: var(--accent-2); }

/* ═════════════════════════════════════════════════════════════════════════════
   SWITCH PIANO ⇄ GUITARE — Volet 1 §6
   ═════════════════════════════════════════════════════════════════════════════ */
.switch-btn {
  display: inline-block;
  margin-top: 10px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text-dim);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
  text-decoration: none;
}
.switch-btn:hover { border-color: var(--accent-2); color: var(--accent-2); }
.switch-btn:disabled,
.switch-btn.disabled {
  opacity: 0.4;
  cursor: default;
  pointer-events: none;
}

/* ═════════════════════════════════════════════════════════════════════════════
   VUE ACCORDS — dictionnaire visuel (Volet 3) : toggle Progressions ⇄ Accords,
   grille racine × qualité, cartes compactes, cellule vide (guitare sans forme).
   ═════════════════════════════════════════════════════════════════════════════ */
.view-toggle { margin-top: 10px; display: flex; justify-content: center; gap: 6px; }
.view-toggle .chip { padding: 5px 14px; }

.chord-browser { margin-top: 4px; }
.cb-toolbar {
  background: rgba(19, 24, 41, 0.7);
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  padding: 12px 12px 10px;
  margin-bottom: 18px;
}

.cb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}
.cb-grid.cb-grid-both { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }

.cb-root-group { margin-bottom: 20px; }
.cb-root-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  font-family: ui-monospace, monospace;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
  padding-bottom: 5px;
  border-bottom: 1px solid var(--line-soft);
}

.cb-card {
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--card-qual, var(--line));
  border-radius: 8px;
  padding: 9px 9px 7px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.cb-card:hover { background: rgba(30, 41, 59, 0.85); border-color: #475569; }
.cb-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px;
  margin-bottom: 4px;
}
.cb-card-name {
  font-size: 13px;
  font-weight: 700;
  font-family: ui-monospace, monospace;
  color: #f8fafc;
}
.cb-card-fr { font-size: 9.5px; color: var(--text-faint); font-style: italic; }
.cb-card-both { display: flex; flex-direction: column; gap: 10px; }
.cb-card-both .cb-sub-label {
  font-size: 8.5px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  font-family: ui-monospace, monospace;
  margin-bottom: 2px;
}

.cb-empty {
  background: rgba(30, 41, 59, 0.2);
  border: 1px dashed var(--line-soft);
  border-radius: 8px;
  padding: 10px 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 60px;
}
.cb-empty-txt {
  font-size: 10px;
  color: var(--text-faint);
  font-style: italic;
  line-height: 1.4;
}

/* ─── Détail agrandi (modale) ──────────────────────────────────────────── */
.cb-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5, 8, 16, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 50;
}
.cb-modal {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  max-width: 460px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  padding: 18px 18px 16px;
}
.cb-modal-close {
  float: right;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text-dim);
  border-radius: 999px;
  width: 26px;
  height: 26px;
  cursor: pointer;
  font-size: 13px;
  font-family: inherit;
}
.cb-modal-close:hover { color: var(--text); border-color: #475569; }
.cb-modal-title {
  font-size: 18px;
  font-weight: 700;
  font-family: ui-monospace, monospace;
  color: #f8fafc;
}
.cb-modal-fr { font-size: 12px; color: var(--text-faint); font-style: italic; margin-bottom: 10px; }
.cb-modal-notes {
  font-size: 12px;
  color: var(--text-dim);
  font-family: ui-monospace, monospace;
  margin: 8px 0 4px;
}
.cb-modal-section { margin-top: 14px; }
.cb-modal-section .fb-label { margin-bottom: 8px; }
.cb-modal-link {
  display: inline-block;
  margin-top: 10px;
  font-size: 11px;
  color: var(--accent-2);
  cursor: pointer;
  text-decoration: underline;
  font-family: inherit;
  background: none;
  border: none;
  padding: 0;
}

/* ═════════════════════════════════════════════════════════════════════════════
   RESPONSIVE — desktop = grille multi-colonnes, mobile = 1 colonne (repli)
   Seuil : 820px. En dessous, comportement empilé d'origine (éprouvé).
   ═════════════════════════════════════════════════════════════════════════════ */
@media (min-width: 821px) {
  .container { max-width: min(1600px, 96vw); }
  .fiche-grid {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 0;
  }
  .fiche-grid .fb-col-main { grid-column: 1; }
  .fiche-grid .fb-col-side { grid-column: 2; border-left: 1px solid var(--line-soft); }
}