/* ============================================================
   SHUFFLE DRUMMER — Onglet PADS (MPC 16 pads)
   Layout : P1 bas-gauche → P16 haut-droite
   Grille 4×4, rangées affichées du bas vers le haut via
   flex-direction:column-reverse sur le conteneur.
   ============================================================ */

#pane-pads {
  display: none;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
}
#pane-pads.active {
  display: flex !important;
}

/* Header */
.pads-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 8px 4px;
  border-bottom: 1px solid #1e1e24;
  flex-shrink: 0;
}
.pads-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: #4a4a52;
}
.pads-action-btn {
  background: none;
  border: 1px solid #3a3a44;
  color: #6a6a72;
  font-family: inherit;
  font-size: 8px;
  letter-spacing: 0.18em;
  padding: 2px 8px;
  border-radius: 2px;
  cursor: pointer;
  transition: color 80ms, border-color 80ms;
}
.pads-action-btn:hover,
.pads-action-btn.on {
  color: var(--accent-bright, #ffaa55);
  border-color: var(--accent-dim, #ff7a1a66);
}

/* MIDI bar */
.pads-midi-bar {
  font-size: 8px;
  letter-spacing: 0.12em;
  color: #2e2e38;
  text-align: center;
  padding: 3px 6px;
  background: #0e0e12;
  border-bottom: 1px solid #1a1a20;
  flex-shrink: 0;
  transition: color 200ms;
}
.pads-midi-bar.active {
  color: #6adf6a;
}

/* ── GRILLE ──
   Les 16 pads sont rendus dans l'ordre DOM P1…P16.
   On veut P1 en bas-gauche, P4 en bas-droite, P13 en haut-gauche, P16 en haut-droite.
   Technique : flex column-reverse avec des rangées de 4.
   On wrap les pads en rangées de 4 avec flex-wrap:wrap + column-reverse
   → la première rangée DOM (P1-P4) apparaît en bas, la dernière (P13-P16) en haut.
*/
.pads-grid {
  display: flex;
  flex-direction: column-reverse;
  flex-wrap: nowrap;
  gap: 5px;
  padding: 8px;
  flex: 1;
  min-height: 0;
}

/* Chaque groupe de 4 forme une rangée */
.pads-row {
  display: flex;
  flex-direction: row;
  gap: 5px;
  flex: 1;
  min-height: 52px;
}

/* ── PAD ── */
.mpc-pad {
  --pad-color: #3a3a44;
  position: relative;
  flex: 1;
  background: linear-gradient(180deg, #bab6ae, #a8a49c);
  border: 1px solid #a8a49e;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  user-select: none;
  touch-action: manipulation;
  overflow: hidden;
  transition: border-color 60ms, box-shadow 60ms;
  min-height: 0;
  box-shadow: 0 3px 0 #969290;
}

.mpc-pad.active {
  background: linear-gradient(180deg, #bab6ae, #a8a49c);
  border-color: var(--pad-color);
}

/* Numéro pad */
.mpc-pad-num {
  position: absolute;
  top: 3px;
  left: 4px;
  font-size: 7px;
  color: #7a7870;
  line-height: 1;
  letter-spacing: 0.04em;
}
.mpc-pad.active .mpc-pad-num {
  color: #6a6860;
}

/* Note MIDI */
.mpc-pad-midi {
  position: absolute;
  top: 3px;
  right: 4px;
  font-size: 7px;
  color: #8a8880;
  line-height: 1;
  letter-spacing: 0.04em;
}
.mpc-pad.active .mpc-pad-midi {
  color: #7a7870;
}

/* Label principal */
.mpc-pad-label {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #3a3830;
  line-height: 1;
  transition: color 60ms, text-shadow 60ms;
}
.mpc-pad.active .mpc-pad-label {
  color: #2a2820;
  text-shadow: 0 0 8px color-mix(in srgb, var(--pad-color) 30%, transparent);
}

/* Sous-label */
.mpc-pad-sub {
  font-size: 7px;
  letter-spacing: 0.06em;
  color: #7a7870;
  line-height: 1;
  text-align: center;
  max-width: 90%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.mpc-pad.active .mpc-pad-sub {
  color: #6a6860;
}

/* Glow intérieur — visible uniquement au hit */
.mpc-pad-glow {
  position: absolute;
  inset: 0;
  border-radius: 3px;
  pointer-events: none;
  background: transparent;
}

/* ── HIT FLASH ── */
.mpc-pad.hit {
  background: linear-gradient(180deg,
    color-mix(in srgb, var(--pad-color, #ff7a1a) 25%, #bab6ae),
    color-mix(in srgb, var(--pad-color, #ff7a1a) 32%, #a8a49c)
  ) !important;
  border-color: var(--pad-color, #ff7a1a) !important;
  box-shadow:
    0 0 8px color-mix(in srgb, var(--pad-color, #ff7a1a) 40%, transparent) inset,
    0 3px 0 #969290;
}
.mpc-pad.hit .mpc-pad-label {
  color: #2a2820;
  text-shadow: 0 0 6px color-mix(in srgb, var(--pad-color, #ff7a1a) 60%, transparent);
}
.mpc-pad.hit .mpc-pad-glow {
  background: radial-gradient(ellipse at center,
    color-mix(in srgb, var(--pad-color, #ff7a1a) 22%, transparent) 0%,
    transparent 65%
  );
}

/* Bank selector */
.pads-bank-wrap {
  display: flex;
  align-items: center;
  gap: 3px;
}
.pads-bank-label {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: #4a4a52;
  margin-right: 2px;
}
.pads-bank-btn {
  background: none;
  border: 1px solid #3a3a44;
  color: #5a5a62;
  font-family: inherit;
  font-size: 11px;
  font-weight: 700;
  width: 24px;
  height: 22px;
  border-radius: 2px;
  cursor: pointer;
  transition: color 80ms, border-color 80ms, background 80ms;
  padding: 0;
  line-height: 1;
}
.pads-bank-btn.active {
  background: #ff7a1a22;
  border-color: #fb8c00;
  color: #fb8c00;
}
.pads-bank-btn:hover:not(.active) {
  color: #8a8a92;
  border-color: #5a5a64;
}

/* Context menu bank tabs */
.pads-ctx-bank-tabs {
  display: flex;
  gap: 3px;
  margin-bottom: 6px;
}
.pads-ctx-bank-tab {
  flex: 1;
  background: #111116;
  border: 1px solid #2a2a32;
  border-radius: 2px;
  color: #cfcfd6;
  font-family: inherit;
  font-size: 11px;
  font-weight: 700;
  padding: 5px 0;
  cursor: pointer;
  transition: color 60ms, border-color 60ms;
}
.pads-ctx-bank-tab.active {
  border-color: #fb8c00;
  color: #fb8c00;
}
.pads-ctx-bank-tab:hover:not(.active) {
  color: #8a8a92;
  border-color: #3a3a44;
}

/* Légende bas */
.pads-legend {
  display: flex;
  justify-content: space-between;
  padding: 3px 8px 5px;
  font-size: 7px;
  letter-spacing: 0.1em;
  color: #28282e;
  border-top: 1px solid #1a1a20;
  flex-shrink: 0;
}

/* ── MENU CONTEXTUEL SWAP ── */
.pads-ctx-menu {
  position: fixed;
  z-index: 9999;
  background: #18181e;
  border: 1px solid #3a3a46;
  border-radius: 6px;
  padding: 12px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.75);
  min-width: 240px;
  max-height: calc(90vh / var(--machine-zoom, 1));
  overflow-y: auto;
  font-family: inherit;
  zoom: var(--machine-zoom, 1);
}

.pads-ctx-title {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: #ffffff;
  margin-bottom: 9px;
  padding-bottom: 6px;
  border-bottom: 1px solid #2a2a32;
  white-space: nowrap;
}

.pads-ctx-grid {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.pads-ctx-row {
  display: flex;
  gap: 3px;
  justify-content: flex-start;
}

.pads-ctx-btn {
  --pad-color: #4a4a52;
  flex: 0 0 auto;
  width: 48px;
  height: 48px;
  aspect-ratio: 1 / 1;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #111116;
  border: 1px solid color-mix(in srgb, var(--pad-color) 40%, #2a2a30);
  border-radius: 3px;
  color: var(--pad-color, #6a6a72);
  font-family: inherit;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 3px;
  cursor: pointer;
  text-align: center;
  white-space: pre;
  line-height: 1.2;
  overflow: hidden;
  transition: background 60ms, border-color 60ms;
}
.pads-ctx-btn:hover {
  background: color-mix(in srgb, var(--pad-color) 20%, #111116);
  border-color: var(--pad-color);
  color: #ffffff;
}
.pads-ctx-btn.self {
  opacity: 0.3;
  cursor: default;
  pointer-events: none;
}

/* ── BANDES LATÉRALES VOLUME (gauche) / PITCH (droite) ──
   Édition visuelle sur le pad en surbrillance. Cachées par défaut,
   révélées au survol du pad. Drag vertical = réglage. */
.pad-strip {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 14px;
  background: rgba(20, 18, 16, 0.55);
  opacity: 0;
  transition: opacity 90ms;
  cursor: ns-resize;
  z-index: 5;
  touch-action: none;
  overflow: hidden;
}
.pad-strip-vol   { left: 0;  border-right: 1px solid rgba(0,0,0,0.25); }
.pad-strip-pitch { right: 0; border-left:  1px solid rgba(0,0,0,0.25); }

/* Révélées au survol du pad, ou quand on interagit avec elles */
.mpc-pad:hover .pad-strip,
.pad-strip:active {
  opacity: 1;
}
/* Sur écran tactile (pas de hover fiable) : toujours légèrement visibles */
@media (hover: none) {
  .mpc-pad.active .pad-strip { opacity: 0.6; }
}

.pad-strip-fill {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 0;
  opacity: 0.55;
  pointer-events: none;
}
/* Le pitch part du centre (50%) vers le haut ou le bas */
.pad-strip-fill-pitch {
  bottom: 50%;
}

.pad-strip-val {
  position: absolute;
  bottom: 2px;
  left: 0;
  right: 0;
  text-align: center;
  font-family: inherit;
  font-size: 6px;
  line-height: 1;
  letter-spacing: 0.02em;
  color: #1a1814;
  font-weight: 700;
  pointer-events: none;
  text-shadow: 0 0 2px rgba(255,255,255,0.4);
}