:root {
  --bg: #16181c;
  --panel: #1f2227;
  --line: #2c3037;
  --line-strong: #454b55;
  --text: #e7e9ec;
  --muted: #8c929c;
  --accent: #e8a33d;
  --cell: #262a30;
  --cell-alt: #2c3037;
  --v1: #6b5a3d;
  --v2: #c88a33;
  --v3: #ffc15a;
  --now: rgba(255, 255, 255, 0.14);
  --brand: #e8a33d;
  --head-w: 150px;
  --cell-w: 30px;
  --radius: 6px;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f2ee;
    --panel: #ffffff;
    --line: #e2ded6;
    --line-strong: #b9b3a8;
    --text: #22201c;
    --muted: #756f65;
    --accent: #b86e12;
    --cell: #ebe7df;
    --cell-alt: #e2ddd3;
    --v1: #dcc49a;
    --v2: #d08a2e;
    --v3: #9a4f00;
    --now: rgba(0, 0, 0, 0.1);
    --brand: #9a4f00;
    color-scheme: light;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding: 16px max(16px, env(safe-area-inset-right)) 24px max(16px, env(safe-area-inset-left));
  max-width: 1400px;
  margin-inline: auto;
}

button, select, input { font: inherit; color: inherit; }

button {
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 6px 12px;
  cursor: pointer;
  min-height: 34px;
}
button:hover:not(:disabled) { border-color: var(--muted); }
button:disabled { opacity: 0.4; cursor: default; }
button.ghost { background: transparent; border-color: var(--line); color: var(--muted); }
button[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #16181c; }

select, input[type="number"] {
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 6px 8px;
  min-height: 34px;
}

input[type="range"] { accent-color: var(--accent); }

/* ---------- Brand ---------- */

.brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding-bottom: 10px;
}

.brand-logo {
  height: 30px;
  width: auto;
  display: block;
}

.brand-tagline {
  margin: 0;
  color: var(--brand);
  font-size: 20px;
  letter-spacing: 0.02em;
}

/* ---------- Transport ---------- */

.transport {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 12px 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.play {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--accent);
  border: none;
  color: #16181c;
  padding: 0;
}
.play svg { width: 26px; height: 26px; fill: currentColor; }
.play .icon-stop, .play.playing .icon-play { display: none; }
.play.playing .icon-stop { display: block; }
.play.loading { opacity: 0.6; }
/* Pendant le décompte, le bouton affiche le numéro du temps */
.play .count { display: none; font-size: 24px; font-weight: 700; }
.play.counting svg { display: none !important; }
.play.counting .count { display: block; }

.settings-btn { margin-left: auto; }
.key-row { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
kbd {
  min-width: 34px;
  padding: 5px 10px;
  border: 1px solid var(--line-strong);
  border-bottom-width: 3px;
  border-radius: var(--radius);
  font: inherit;
  text-align: center;
}
kbd:empty::before { content: attr(data-empty); color: var(--muted); }
#pedal-learn.learning { background: var(--accent); border-color: var(--accent); color: #16181c; }

.field { display: flex; flex-direction: column; gap: 4px; }
.field > label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.field.disabled { opacity: 0.4; }

.tempo-row { display: flex; gap: 4px; }
#bpm { width: 64px; text-align: center; }
button.small { padding: 4px 10px; }

.swing { min-width: 180px; }
.swing output { text-transform: none; color: var(--text); margin-left: 4px; }
.swing input { width: 100%; }
.swing-unit { display: flex; gap: 12px; font-size: 13px; color: var(--muted); }
.swing-unit[hidden] { display: none; }

.humanize { min-width: 150px; }
.humanize output { text-transform: none; color: var(--text); margin-left: 4px; }
.humanize input { width: 100%; }

/* ---------- Barre d'outils ---------- */

.toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 0;
}
.brush, .library { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.hint { color: var(--muted); font-size: 13px; }
.vel-btn { display: inline-flex; align-items: center; gap: 6px; }
.dot { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.dot.v1 { background: var(--v1); }
.dot.v2 { background: var(--v2); }
.dot.v3 { background: var(--v3); }
#library { max-width: 200px; }

/* ---------- Grille ---------- */

.grid-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.grid { display: flex; flex-direction: column; width: max-content; min-width: 100%; }

.row { display: flex; align-items: stretch; border-bottom: 1px solid var(--line); }
.row:last-child { border-bottom: none; }
.row.muted .steps { opacity: 0.35; }

.head {
  position: sticky;
  left: 0;
  z-index: 1;
  width: var(--head-w);
  flex: none;
  background: var(--panel);
  border-right: 1px solid var(--line);
  padding: 4px 8px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
}

.name {
  border: none;
  background: none;
  padding: 0;
  min-height: 0;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.name:hover { color: var(--accent); }

.track-ctrl { display: flex; align-items: center; gap: 4px; }
button.tiny { min-height: 0; padding: 0; width: 22px; height: 22px; font-size: 12px; line-height: 1; }
button.remove { border-color: transparent; background: none; color: var(--muted); font-size: 16px; }
.vol { width: 56px; flex: 1; min-width: 0; }

/* Une rangée = des temps (.beat), chaque temps contient ses cases.
   --w = largeur du temps en nombre de cases « normales ». */
.steps {
  display: flex;
  gap: 7px;
  padding: 6px 8px;
  align-items: center;
}

.beat {
  --gap: 3px;
  display: flex;
  gap: var(--gap);
  flex: none;
  width: calc(var(--w) * var(--cell-w) + (var(--w) - 1) * var(--gap));
  position: relative;
}
.beat.bar-start { margin-left: 8px; }
.beat.bar-start::before {
  content: "";
  position: absolute;
  left: -8px;
  top: -6px;
  bottom: -6px;
  border-left: 1px solid var(--line-strong);
}

.cell {
  flex: 1;
  min-width: 0;
  height: 34px;
  min-height: 0;
  padding: 0;
  border: none;
  border-radius: 4px;
  background: var(--cell);
  position: relative;
}
.beat.alt .cell { background: var(--cell-alt); }
.beat.tuplet .cell { border-radius: 10px; }

.cell[data-v="1"] { background: var(--v1) !important; }
.cell[data-v="2"] { background: var(--v2) !important; }
.cell[data-v="3"] { background: var(--v3) !important; box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.35); }

/* Liaison : une bande qui relie la note à la case suivante */
.cell[data-v="4"]::after {
  content: "";
  position: absolute;
  top: 12px;
  bottom: 12px;
  left: calc(-1 * var(--gap) - 1px);
  right: 0;
  background: var(--v2);
  border-radius: 0 5px 5px 0;
}
.beat > .cell:first-child[data-v="4"]::after { left: -8px; }
.beat.bar-start > .cell:first-child[data-v="4"]::after { left: -16px; }

.cell.now { outline: 2px solid var(--text); outline-offset: -2px; }
.cell.now[data-v="0"], .cell.now[data-v="4"] { background: var(--now) !important; }

.ruler .head { padding: 0 8px; }
.ruler-hint { font-size: 11px; line-height: 1.25; color: var(--muted); }
.ruler .steps { padding-block: 4px; }
.ruler .beat {
  border: none;
  background: none;
  padding: 0;
  min-height: 0;
  border-radius: 4px;
  cursor: pointer;
}
.ruler .beat:hover { background: var(--cell); }
.ruler .beat.tuplet { box-shadow: inset 0 2px 0 var(--accent); }
.tick { flex: 1; min-width: 0; font-size: 11px; color: var(--muted); text-align: center; border-radius: 3px; line-height: 20px; }
.tick.now { background: var(--accent); color: #16181c; }
.tuplet-badge {
  position: absolute;
  right: 2px;
  top: -2px;
  font-size: 10px;
  font-style: italic;
  color: var(--accent);
}

/* Menu de découpage d'un temps */
.beat-menu {
  position: absolute;
  z-index: 10;
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 180px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
}
.menu-title { font-size: 12px; color: var(--muted); padding: 0 4px 4px; }
.beat-menu button { text-align: left; }

.dot.tie { background: none; border-top: 2px solid var(--v2); border-radius: 50% 50% 0 0; height: 6px; }

.empty { color: var(--muted); padding: 16px; margin: 0; }

.add-row { display: flex; justify-content: space-between; gap: 10px; margin-top: 12px; }

/* ---------- Fenêtre d'export ---------- */

dialog {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 20px;
  width: min(420px, calc(100vw - 32px));
  max-height: calc(100dvh - 32px);
  overflow-y: auto;
}
dialog::backdrop { background: rgba(0, 0, 0, 0.5); }

/* Sorties MIDI : une case à cocher par port */
.midi-ports { display: flex; flex-direction: column; gap: 6px; }
.midi-ports label { display: flex; align-items: center; gap: 8px; }
.midi-ports input { accent-color: var(--accent); width: 18px; height: 18px; }
.midi-ports .off { color: var(--muted); }
#midi-status.warn { color: var(--accent); }
.midi-options { display: flex; flex-direction: column; gap: 8px; margin-top: 6px; }
.midi-options[hidden] { display: none; }
.midi-options label { display: flex; align-items: center; gap: 8px; }
.midi-options input[type="checkbox"] { accent-color: var(--accent); width: 18px; height: 18px; flex: none; }
#midi-offset { width: 76px; text-align: center; }

/* Voyant : l'horloge MIDI est envoyée ; il s'allume à chaque noire */
.midi-led {
  align-self: center;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 3px 7px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  color: var(--muted);
  transition: background 0.15s, color 0.15s;
}
.midi-led.beat { background: var(--accent); border-color: var(--accent); color: #16181c; transition: none; }
.export-form { display: flex; flex-direction: column; gap: 14px; }
.export-form h2 { margin: 0; font-size: 18px; }
.export-form .field > span { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.export-form .hint { margin: 0; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; flex-wrap: wrap; }
.choice-row { display: flex; gap: 16px; flex-wrap: wrap; }
.choice-row > .field { flex: 1; min-width: 120px; }
.export-form label:has(> input[type="radio"]) {
  display: flex; align-items: center; gap: 8px;
  font-size: inherit; text-transform: none; letter-spacing: normal; color: inherit;
}
.export-form input[type="radio"] { accent-color: var(--accent); }
.wav-options { display: flex; flex-direction: column; gap: 14px; }
.wav-options[hidden] { display: none; }
.wav-options .check { display: flex; align-items: center; gap: 8px; }
.wav-options .check input { accent-color: var(--accent); width: 18px; height: 18px; }
#export-status:empty { display: none; }
#export-status.warn { color: var(--accent); font-weight: 600; }
button.primary { background: var(--accent); border-color: var(--accent); color: #16181c; font-weight: 600; }

footer { margin-top: 28px; font-size: 12px; color: var(--muted); }
footer a { color: inherit; }

/* ---------- Bandeau MIDI (support indisponible) ---------- */

.midi-notice,
.notice {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  max-width: 1400px;
  margin: 0 auto 12px;
  padding: 10px 12px;
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 13px;
  line-height: 1.4;
}
.midi-notice p,
.notice p { margin: 0; flex: 1; }
.midi-notice-close,
.notice-close {
  flex: none;
  width: 44px;
  height: 44px;
  min-height: 0;
  margin: -10px -8px -10px 0;
  padding: 0;
  border: none;
  background: none;
  color: var(--muted);
  font-size: 20px;
  line-height: 1;
  display: grid;
  place-items: center;
}
.midi-notice-close:hover,
.notice-close:hover { color: var(--text); border-color: transparent; }
.notice-retry { flex: none; align-self: center; }

.noscript { max-width: 40em; margin: 40px auto; padding: 0 16px; text-align: center; }

/* ---------- Téléphone ---------- */

@media (max-width: 640px) {
  :root { --head-w: 128px; --cell-w: 28px; }
  .head { padding-inline: 6px; }
  .track-ctrl { gap: 3px; }
  .vol { min-width: 36px; }
  body { font-size: 14px; }
  .transport { gap: 10px 14px; }
  .play { width: 52px; height: 52px; }
  .swing, .humanize { flex-basis: 100%; }
  .toolbar { flex-direction: column; }
}

/* ---------- Pages de texte (aide, crédits) ---------- */

.help { max-width: 760px; margin: 0 auto; line-height: 1.6; }
.help h1 { font-size: 26px; margin: 8px 0 4px; }
.help h2 { font-size: 20px; margin: 36px 0 8px; padding-top: 12px; border-top: 1px solid var(--line); }
.help h3 { font-size: 16px; margin: 22px 0 6px; color: var(--accent); }
/* Grande partie de l'aide (MIDI clock, Audio export) */
.help h2.part { font-size: 24px; margin-top: 48px; border-top: 3px solid var(--accent); }
.help nav p { margin: 12px 0 0; }
.help li { margin: 4px 0; }
.help code, .help kbd {
  font: 13px/1.4 ui-monospace, Consolas, monospace;
  background: var(--cell);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1px 5px;
}
.help pre {
  background: var(--cell);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 12px;
  overflow-x: auto;
  font: 13px/1.5 ui-monospace, Consolas, monospace;
}
.help pre code { background: none; border: none; padding: 0; }
.help .note {
  border-left: 3px solid var(--accent);
  background: var(--panel);
  padding: 8px 12px;
  border-radius: 0 var(--radius) var(--radius) 0;
}
.help nav ul { columns: 2; column-gap: 24px; padding-left: 18px; }
.help a { color: var(--accent); }
.back { display: inline-block; margin-bottom: 8px; }
@media (max-width: 640px) { .help nav ul { columns: 1; } }