/* ============================================================
   IMPRO SOUNDBOARD — style.css
============================================================ */

:root {
  /* ── Couleurs de base ── */
  --bg-base:        #0d0d0f;
  --bg-surface:     #141418;
  --bg-card:        #1a1a20;
  --bg-card-hover:  #22222c;
  --border:         #2a2a35;
  --border-glow:    #3a3a50;
  --text-primary:   #e8e8f0;
  --text-secondary: #b8b8d0;
  --text-muted:     #666680;
  --color-danger:   #ff3d71;

  /* ── Accent courant ── */
  --current-accent: #7c9cff;

  /* ── Layout ── */
  --header-h:   48px;
  --controls-h: 52px;
  --gap:        8px;
  --gap-inner:  5px;
  --radius:     6px;

  /* ── Typographie ── */
  --font-display: 'Rajdhani', sans-serif;
  --font-mono:    'IBM Plex Mono', monospace;
}

/* ── Reset ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0; padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-display);
  touch-action: manipulation;
}

#app {
  display: flex;
  flex-direction: column;
  width: 100%; height: 100vh;
}

/* ── Focus accessible (clavier uniquement) ── */
.tab-btn:focus-visible,
.inst-btn:focus-visible,
.sound-btn:focus-visible,
.emergency-stop-btn:focus-visible,
.transport-play-pause:focus-visible,
#settings-btn:focus-visible,
#about-reload-btn:focus-visible,
#about-close-btn:focus-visible,
.midi-select:focus-visible {
  outline: 2px solid var(--current-accent);
  outline-offset: -2px;
}

/* ═══════════════════════════════════════════════════════
    HEADER — logo + onglets sur une seule ligne compacte
════════════════════════════════════════════════════════ */
#header {
  height: var(--header-h);
  min-height: var(--header-h);
  display: flex;
  align-items: stretch;
  background: var(--bg-surface);
  border-bottom: 2px solid var(--border);
  z-index: 10;
}

#settings-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--header-h);
  min-width: var(--header-h);
  height: 100%;
  border: none;
  border-left: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 30px;
  cursor: pointer;
  flex-shrink: 0;
  transition: color 0.15s, background 0.15s;
  user-select: none;
  -webkit-user-select: none;
}

#settings-btn:hover {
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.03);
}

#settings-btn:active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

#settings-btn > * {
  position: relative;
  z-index: 1;
}

/* ═══════════════════════════════════════════════════════
    POPUP ABOUT
════════════════════════════════════════════════════════ */
#about-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  z-index: 100;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

#about-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-glow);
  border-radius: calc(var(--radius) * 2);
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 280px;
  max-width: 400px;
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.6),
              0 0 80px color-mix(in srgb, var(--current-accent) 10%, transparent);
  font-family: var(--font-mono);
}

#about-title {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--current-accent);
}

#about-version {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
}

#about-info {
  font-size: 11px;
  color: var(--text-muted);
  padding: 10px 12px;
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

#about-credit {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

#about-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#about-reload-btn,
#about-close-btn {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 10px 16px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s, box-shadow 0.15s;
  text-align: center;
}

#about-reload-btn {
  background: transparent;
  border: 1px solid var(--current-accent);
  color: var(--current-accent);
}
#about-reload-btn:hover {
  background: color-mix(in srgb, var(--current-accent) 15%, transparent);
  box-shadow: 0 0 10px color-mix(in srgb, var(--current-accent) 30%, transparent);
}
#about-reload-btn:active {
  background: color-mix(in srgb, var(--current-accent) 25%, transparent);
}

#about-close-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
}
#about-close-btn:hover {
  border-color: var(--border-glow);
  color: var(--text-secondary);
}

/* ═══════════════════════════════════════════════════════
    TAB NAV
════════════════════════════════════════════════════════ */
#tab-nav {
  flex: 1;
  display: flex;
  align-items: stretch;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
}
#tab-nav::-webkit-scrollbar { display: none; }

.tab-btn {
  flex: 1 0 auto;
  min-width: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0 12px;
  border: none;
  border-right: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
  position: relative;
  white-space: nowrap;
}
.tab-btn:last-child { border-right: none; }

.tab-btn:hover {
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.14);
}
.tab-btn.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.18);
}

.tab-btn[data-type="midi"] {
  background:
    repeating-linear-gradient(
      to right,
      rgba(255, 255, 255, 0.08) 0px,
      rgba(255, 255, 255, 0.08) 15px,
      rgba(0, 0, 0, 0.12) 15px,
      rgba(0, 0, 0, 0.12) 26px
    )
    top / 100% 50% no-repeat,
    linear-gradient(
      to top,
      rgba(255, 255, 255, 0.08) 0%,
      rgba(255, 255, 255, 0.08) 50%,
      transparent 50%
    );
  color: var(--text-secondary);
}

.tab-btn[data-type="midi"]:hover {
  background:
    repeating-linear-gradient(
      to right,
      rgba(255, 255, 255, 0.14) 0px,
      rgba(255, 255, 255, 0.14) 15px,
      rgba(0, 0, 0, 0.08) 15px,
      rgba(0, 0, 0, 0.08) 26px
    )
    top / 100% 50% no-repeat,
    linear-gradient(
      to top,
      rgba(255, 255, 255, 0.14) 0%,
      rgba(255, 255, 255, 0.14) 50%,
      transparent 50%
    );
  color: var(--text-primary);
}

.tab-btn[data-type="midi"].active {
  background:
    repeating-linear-gradient(
      to right,
      rgba(255, 255, 255, 0.18) 0px,
      rgba(255, 255, 255, 0.18) 15px,
      rgba(0, 0, 0, 0.06) 15px,
      rgba(0, 0, 0, 0.06) 26px
    )
    top / 100% 50% no-repeat,
    linear-gradient(
      to top,
      rgba(255, 255, 255, 0.18) 0%,
      rgba(255, 255, 255, 0.18) 50%,
      transparent 50%
    );
  color: var(--text-primary);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 2px;
  background: var(--tab-accent);
  box-shadow: 0 0 8px var(--tab-accent);
}

.tab-icon  { font-size: 15px; line-height: 1; }
.tab-label { font-size: 12px; }

/* ═══════════════════════════════════════════════════════
    PANELS
════════════════════════════════════════════════════════ */
#panels {
  flex: 1;
  min-height: 0;
  position: relative;
}

.panel {
  display: none;
  flex-direction: column;
  width: 100%; height: 100%;
  padding: var(--gap);
  gap: var(--gap);
}
.panel.active { display: flex; }

/* ═══════════════════════════════════════════════════════
  PANEL CONTROLS
════════════════════════════════════════════════════════ */
.panel-controls {
  display: flex;
  align-items: center;
  height: var(--controls-h);
  min-height: var(--controls-h);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0 12px;
  flex-shrink: 0;
  gap: 12px;
}

/* ── Zone gauche (max 50%) ── */
.controls-left {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1 1 0;
  min-width: 0;
  max-width: 50%;
}

/* ── Zone droite (exactement 50%) ── */
.controls-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 50%;
  min-width: 0;
  justify-content: flex-end;
}

/* ── Connexion MIDI ── */
.midi-connect {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  flex: 0 1 auto;
}

.midi-select {
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--bg-base);
  color: var(--text-primary);
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: border-color 0.12s;
  min-width: 0;
  flex-shrink: 1;
}
.midi-select:hover { border-color: var(--border-glow); }

.midi-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 90px;
  text-align: center;
}
.midi-badge.usb { color: #4cffaa; border-color: #4cffaa; }
.midi-badge.bt  { color: #55aaff; border-color: #55aaff; }
.midi-badge.err { color: #ff4444; border-color: #ff4444; }

/* ═══════════════════════════════════════════════════════
  TRANSPORT BAR — Play/Pause + Seek + Time
════════════════════════════════════════════════════════ */
.transport-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex: 1 1 auto;
}

/* ── Bouton Play/Pause ── */
.transport-play-pause {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s, color 0.15s, background 0.15s, box-shadow 0.15s;
  flex-shrink: 0;
}

.transport-play-pause:hover:not(:disabled) {
  border-color: var(--panel-accent);
  color: var(--panel-accent);
  background: color-mix(in srgb, var(--panel-accent) 10%, var(--bg-card));
}

.transport-play-pause:active:not(:disabled) {
  transform: scale(0.93);
}

.transport-play-pause:disabled {
  opacity: 0.3;
  cursor: default;
}

.transport-play-pause.is-playing {
  border-color: var(--panel-accent);
  color: var(--panel-accent);
  box-shadow: 0 0 8px color-mix(in srgb, var(--panel-accent) 30%, transparent);
}

.transport-play-pause.is-paused {
  border-color: var(--text-muted);
  color: var(--text-secondary);
}

/* ── Icônes Play/Pause en CSS pur (évite les emojis Android) ── */
.icon-play,
.icon-pause {
  display: block;
  width: 16px;
  height: 16px;
  position: relative;
}

/* Triangle play */
.icon-play::after {
  content: '';
  position: absolute;
  top: 0;
  left: 2px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 8px 0 8px 14px;
  border-color: transparent transparent transparent currentColor;
}

/* Deux barres pause */
.icon-pause::before,
.icon-pause::after {
  content: '';
  position: absolute;
  top: 0;
  width: 4px;
  height: 16px;
  background: currentColor;
  border-radius: 1px;
}
.icon-pause::before { left: 1px; }
.icon-pause::after  { right: 1px; }

/* Carré stop */
.icon-stop {
  display: block;
  width: 16px;
  height: 16px;
  position: relative;
}
.icon-stop::after {
  content: '';
  position: absolute;
  top: 1px;
  left: 1px;
  width: 14px;
  height: 14px;
  background: currentColor;
  border-radius: 2px;
}

/* ── Barre de Seek ── */
.transport-seek {
  flex: 1;
  height: 12px;
  min-width: 80px;
  background: var(--border);
  border: 1px solid var(--border-glow);
  border-radius: 6px;
  position: relative;
  cursor: pointer;
  overflow: visible;
}

.transport-seek-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: var(--panel-accent, var(--current-accent));
  border-radius: 6px 0 0 6px;
  pointer-events: none;
}

.transport-seek-handle {
  position: absolute;
  top: 50%;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--text-primary);
  border: 3px solid var(--panel-accent, var(--current-accent));
  box-shadow: 0 0 6px var(--panel-accent, var(--current-accent));
  transform: translate(-50%, -50%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s, transform 0.1s, box-shadow 0.3s;
}

/* Handle visible quand un son est actif */
.panel-audio.is-playing .transport-seek-handle,
.panel-audio.is-paused .transport-seek-handle {
  opacity: 1;
}

/* Handle pulsant en lecture */
.transport-seek-handle.pulsing {
  animation: handle-pulse 1s ease-in-out infinite;
}

@keyframes handle-pulse {
  0%, 100% {
    box-shadow: 0 0 6px var(--panel-accent, var(--current-accent)),
                0 0 14px var(--panel-accent, var(--current-accent));
  }
  50% {
    box-shadow: 0 0 2px transparent;
  }
}

/* Hover sur la barre */
.transport-seek:hover .transport-seek-handle {
  transform: translate(-50%, -50%) scale(1.2);
}

/* ── Affichage du temps ── */
.transport-time {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 90px;
  text-align: right;
  letter-spacing: 0.04em;
}

.panel-audio.is-playing .transport-time {
  color: var(--panel-accent);
}

.panel-audio.is-paused .transport-time {
  color: var(--text-secondary);
}

/* ── Volume ── */
.volume-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1 1 auto;
  min-width: 0;
}


.vol-icon  { font-size: 16px; flex-shrink: 0; }
.vol-value {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  min-width: 32px;
  text-align: right;
  flex-shrink: 0;
}

/* Slider tactile large */
.vol-slider {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  height: 36px;
  background: transparent;
  cursor: pointer;
  outline: none;
  border: none;
}

.vol-slider::-webkit-slider-runnable-track {
  height: 12px;
  border-radius: 6px;
  background: linear-gradient(
    to right,
    var(--panel-accent, var(--current-accent)) 0%,
    var(--panel-accent, var(--current-accent)) var(--vol-pct, 75%),
    var(--border) var(--vol-pct, 75%),
    var(--border) 100%
  );
  border: 1px solid var(--border-glow);
}
.vol-slider::-moz-range-track {
  height: 12px;
  border-radius: 6px;
  background: var(--border);
  border: 1px solid var(--border-glow);
}
.vol-slider::-moz-range-progress {
  height: 12px;
  border-radius: 6px 0 0 6px;
  background: var(--panel-accent, var(--current-accent));
}
.vol-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--text-primary);
  border: 3px solid var(--panel-accent, var(--current-accent));
  box-shadow: 0 0 8px var(--panel-accent, var(--current-accent));
  margin-top: -6px;
  transition: transform 0.1s;
}
.vol-slider::-moz-range-thumb {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--text-primary);
  border: 3px solid var(--panel-accent, var(--current-accent));
  cursor: pointer;
}
.vol-slider:active::-webkit-slider-thumb { transform: scale(1.2); }

/* ═══════════════════════════════════════════════════════
    COLONNES — communes MIDI et Audio
════════════════════════════════════════════════════════ */
.midi-col,
.audio-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  min-width: 0;
  overflow: hidden;
}

/* ═══════════════════════════════════════════════════════
    BLOCS CATÉGORIE — communs MIDI et Audio
════════════════════════════════════════════════════════ */
.cat-block,
.audio-cat-block {
  display: flex;
  flex-direction: column;
  gap: var(--gap-inner);
  flex-shrink: 0;
}

.cat-title {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--cat-color, var(--text-muted));
  text-transform: uppercase;
  padding: 2px 4px;
  opacity: 0.9;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ═══════════════════════════════════════════════════════
    PANNEAU MIDI — colonnes indépendantes
════════════════════════════════════════════════════════ */
.midi-grid {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: row;
  gap: var(--gap);
  overflow: hidden;
}

.btn-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap-inner);
}

/* ═══════════════════════════════════════════════════════
    BOUTONS — base commune inst-btn et sound-btn
════════════════════════════════════════════════════════ */
.inst-btn,
.sound-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--gap-inner);
  padding: 10px 8px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s,
              box-shadow 0.15s, transform 0.08s;
  user-select: none;
  text-align: center;
  min-height: 0;
  height: var(--btn-h, 80px);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  container-type: size;
}

.inst-btn:hover,
.sound-btn:hover {
  border-color: var(--border-glow);
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

.inst-btn:active,
.sound-btn:active { transform: scale(0.93); }

.btn-icon {
  font-size: clamp(16px, 45cqh, 44px);
  line-height: 1;
  position: relative;
  z-index: 2;
  flex-shrink: 1;
}
.btn-label {
  font-size: clamp(7px, 18cqh, 14px);
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.1;
  word-break: break-word;
  position: relative;
  z-index: 2;
  flex-shrink: 0;
}
.inst-btn:hover .btn-label,
.sound-btn:hover .btn-label { color: var(--text-primary); }

.btn-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
  display: block;
}

/* ═══════════════════════════════════════════════════════
    BOUTONS AUDIO avec IMAGE
════════════════════════════════════════════════════════ */
.sound-btn--img {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.sound-btn--img .btn-icon {
  flex: 1;
  width: 100%;
  min-height: 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0;
  background: var(--bg-card);
}

.sound-btn--img .btn-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  border-radius: 0;
}

.sound-btn--img .btn-label {
  flex-shrink: 0;
  padding: 6px 8px;
  font-size: clamp(9px, 1vw, 11px);
  line-height: 1.2;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  color: var(--text-secondary);
  text-align: center;
}

.sound-btn--img:hover .btn-label {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

.sound-btn--img.playing {
  border-color: var(--panel-accent);
  box-shadow: 0 0 20px color-mix(in srgb, var(--panel-accent) 50%, transparent);
}

.sound-btn--img.playing .btn-label {
  background: color-mix(in srgb, var(--panel-accent) 15%, var(--bg-card));
  color: var(--panel-accent);
  border-top-color: var(--panel-accent);
}

.sound-btn--img:hover .btn-icon img {
  transform: scale(1.05);
  transition: transform 0.3s ease;
}

.sound-btn--img.paused {
  border-color: var(--panel-accent);
  box-shadow: none;
  opacity: 0.9;
}

.sound-btn--img.paused .btn-label {
  background: color-mix(in srgb, var(--panel-accent) 10%, var(--bg-card));
  color: var(--panel-accent);
  border-top-color: var(--panel-accent);
}


/* ═══════════════════════════════════════════════════════
    BOUTON MIDI — état actif
════════════════════════════════════════════════════════ */
.inst-btn.active {
  background: color-mix(in srgb, var(--panel-accent) 15%, var(--bg-card));
  border-color: var(--panel-accent);
  box-shadow: 0 0 10px color-mix(in srgb, var(--panel-accent) 35%, transparent);
  animation: active-pulse 2s ease-in-out infinite alternate;
}
.inst-btn.active .btn-label {
  color: var(--panel-accent);
  font-weight: 700;
}
.inst-btn.active .btn-icon {
  filter: drop-shadow(0 0 4px var(--panel-accent));
}

.inst-btn.active:hover {
  background: color-mix(in srgb, var(--panel-accent) 28%, var(--bg-card));
  box-shadow: 0 0 16px color-mix(in srgb, var(--panel-accent) 50%, transparent);
}

@keyframes active-pulse {
  from { box-shadow: 0 0 6px  color-mix(in srgb, var(--panel-accent) 25%, transparent); }
  to   { box-shadow: 0 0 16px color-mix(in srgb, var(--panel-accent) 50%, transparent); }
}

/* ═══════════════════════════════════════════════════════
  BOUTON ARRET URGENCE
════════════════════════════════════════════════════════ */
.emergency-stop-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  background: color-mix(in srgb, var(--color-danger) 8%, var(--bg-card));
  border: 1px solid var(--color-danger);
  border-radius: var(--radius);
  color: var(--color-danger);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 8px 14px;
  cursor: pointer;
  transition: background 0.15s, box-shadow 0.15s, color 0.15s;
  flex-shrink: 0;
  white-space: nowrap;
  line-height: 1;
}

.emergency-stop-btn:hover {
  background: color-mix(in srgb, var(--color-danger) 15%, transparent);
  box-shadow: 0 0 10px color-mix(in srgb, var(--color-danger) 35%, transparent);
}

.emergency-stop-btn:active {
  background: color-mix(in srgb, var(--color-danger) 30%, transparent);
  transform: scale(0.93);
}

/* ═══════════════════════════════════════════════════════
  BOUTON AUDIO — progression + état playing
════════════════════════════════════════════════════════ */
.sound-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--bg-card);
  z-index: 0;
  border-radius: inherit;
  transition: background 0.15s;
}
.sound-btn:hover::after     { background: var(--bg-card-hover); }
.sound-btn.playing::after   {
  background: color-mix(in srgb, var(--panel-accent) 10%, var(--bg-card));
}

.sound-btn::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: var(--progress, 0%);
  height: 100%;
  background: color-mix(in srgb, var(--panel-accent) 25%, transparent);
  z-index: 1;
  border-radius: inherit;
  transition: width var(--progress-transition, 0.25s) linear;
  pointer-events: none;
}

.sound-btn > * { position: relative; z-index: 2; }

/* Styles du bouton en état PLAYING */
.sound-btn.playing {
  color: var(--panel-accent);
  border-color: var(--panel-accent);
  animation: playing-glow 0.9s ease-in-out infinite alternate;
}
.sound-btn.playing .btn-label { color: var(--panel-accent); }

@keyframes playing-glow {
  from { box-shadow: 0 0 8px  color-mix(in srgb, var(--panel-accent) 25%, transparent); }
  to   { box-shadow: 0 0 22px color-mix(in srgb, var(--panel-accent) 55%, transparent); }
}

.sound-btn.playing .btn-icon { font-size: 0; }
.sound-btn.playing .btn-icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: block;
  width: clamp(22px, 3vw, 32px);
  height: clamp(22px, 3vw, 32px);
  background: currentColor;
  border-radius: 3px;
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.8),
              0 0 16px var(--panel-accent);
  z-index: 3;
}


/* ═══════════════════════════════════════════════════════
    BOUTON AUDIO — état PAUSE
════════════════════════════════════════════════════════ */
.sound-btn.paused {
  color: var(--panel-accent);
  border-color: var(--panel-accent);
  animation: none; /* Pas d'animation glow en pause */
  opacity: 0.9;
}
.sound-btn.paused .btn-label { color: var(--panel-accent); }

.sound-btn.paused .btn-icon { font-size: 0; }
.sound-btn.paused .btn-icon::after {
  content: '↺';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, calc(-50% + 1px));
  display: block;
  line-height: 1;
  color: var(--panel-accent);
  -webkit-text-stroke: 2px var(--panel-accent);
  text-shadow:
    -1px -1px 2px rgba(0, 0, 0, 0.7),
      1px -1px 2px rgba(0, 0, 0, 0.7),
    -1px  1px 2px rgba(0, 0, 0, 0.7),
      1px  1px 2px rgba(0, 0, 0, 0.7),
      0    0   6px rgba(0, 0, 0, 0.6),
      0    0  12px rgba(0, 0, 0, 0.4);
  z-index: 3;
  font-size: clamp(24px, 3vw, 36px);
}

.sound-btn.missing {
  opacity: 0.35;
  text-decoration: line-through;
  pointer-events: none;
  cursor: default;
}

/* ═══════════════════════════════════════════════════════
    PANNEAU AUDIO — grille
════════════════════════════════════════════════════════ */
.audio-grid {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: var(--gap);
  align-content: start;
}

/* ═══════════════════════════════════════════════════════
  PANNEAU AUDIO — mode colonnes (Films)
════════════════════════════════════════════════════════ */
.audio-grid-cols {
  display: flex;
  flex-direction: row;
  gap: var(--gap);
  overflow: hidden;
}

.audio-cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-inner);
}

.audio-col .sound-btn {
  height: var(--btn-h, 80px);
}

/* ═══════════════════════════════════════════════════════
  GRILLE ANIMAUX — 4×8 paysage, 8×4 portrait (transposé)
════════════════════════════════════════════════════════ */
.panel .audio-grid.animals-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(4, 1fr);
  gap: var(--gap-inner);
  
  flex: 1;
  min-height: 0;
  height: 100%;
  align-content: stretch;
  align-items: stretch;
}

.audio-grid.animals-grid .sound-btn {
  height: 100%;
  min-height: 0;
  padding: 4px 2px;
  container-type: size;
}

.audio-grid.animals-grid .sound-btn .btn-icon {
  font-size: 45cqh;
  line-height: 1;
}

.audio-grid.animals-grid .sound-btn .btn-label {
  font-size: clamp(7px, 18cqh, 14px);
  line-height: 1.1;
}

/* ═══════════════════════════════════════════════════════
  GRILLE ANIMAUX — Couleurs par catégorie (classes CSS)
════════════════════════════════════════════════════════ */

.animaux-domestique { --cat-accent: #ff00ff; }
.animaux-ferme      { --cat-accent: #44aa00; }
.animaux-foret      { --cat-accent: #7700ff; }
.animaux-oiseau     { --cat-accent: #0066ff; }
.animaux-insecte    { --cat-accent: #ff8000; }
.animaux-savane     { --cat-accent: #cccc00; }
.animaux-aquatique  { --cat-accent: #00ffee; }

.animals-grid .sound-btn {
  border-color: color-mix(in srgb, var(--cat-accent, var(--border)) 35%, var(--border));
  background: color-mix(in srgb, var(--cat-accent, transparent) 8%, var(--bg-card));
}

.animals-grid .sound-btn:hover {
  border-color: color-mix(in srgb, var(--cat-accent, var(--border-glow)) 65%, var(--border-glow));
  background: color-mix(in srgb, var(--cat-accent, transparent) 15%, var(--bg-card-hover));
}

.animals-grid .sound-btn.playing {
  border-color: var(--cat-accent, var(--panel-accent));
  background: color-mix(in srgb, var(--cat-accent, transparent) 20%, var(--bg-card));
  box-shadow: 0 0 12px color-mix(in srgb, var(--cat-accent, var(--panel-accent)) 40%, transparent);
}

.animals-grid .sound-btn.playing .btn-label {
  color: var(--cat-accent, var(--panel-accent));
}

@keyframes playing-glow-cat {
  from { box-shadow: 0 0 6px  color-mix(in srgb, var(--cat-accent) 25%, transparent); }
  to   { box-shadow: 0 0 18px color-mix(in srgb, var(--cat-accent) 55%, transparent); }
}

.animals-grid .sound-btn.playing {
  animation: playing-glow-cat 0.9s ease-in-out infinite alternate;
}

.animals-grid .sound-btn::before {
  background: color-mix(in srgb, var(--cat-accent, var(--panel-accent)) 30%, transparent);
}

.animals-grid .sound-btn::after {
  background: color-mix(in srgb, var(--cat-accent, transparent) 8%, var(--bg-card));
}

.animals-grid .sound-btn:hover::after {
  background: color-mix(in srgb, var(--cat-accent, transparent) 15%, var(--bg-card-hover));
}

.animals-grid .sound-btn.playing::after {
  background: color-mix(in srgb, var(--cat-accent, transparent) 20%, var(--bg-card));
}

/* ═══════════════════════════════════════════════════════
    RESPONSIVE
════════════════════════════════════════════════════════ */

/* ── Desktop large ── */
@media (min-width: 1024px) {
  :root { --gap: 10px; --header-h: 48px; --controls-h: 52px; }
  .tab-label { font-size: 13px; }
}

/* ── Tablette portrait ── */
@media (max-width: 1024px) and (orientation: portrait) {
  :root { --gap: 8px; }
  .audio-grid { grid-template-columns: repeat(auto-fit, minmax(100px, 1fr)); }
  .tab-label { font-size: 11px; }
  .tab-btn { min-width: 70px; }
}

/* ── Mobile ── */
@media (max-width: 600px) {
  :root { --header-h: 44px; --gap: 6px; }
  .tab-label { display: none; }
  .tab-btn { min-width: 48px; }
  .audio-grid { grid-template-columns: repeat(3, 1fr); }
  .midi-select { max-width: 130px; font-size: 10px; }
  .midi-badge  { min-width: 70px; font-size: 10px; }
}

/* ── Portrait — tous écrans ── */
@media (orientation: portrait) {
  :root {
    --controls-h: auto;
  }

  .panel-controls {
    flex-wrap: wrap;
    align-items: center;
    padding: 6px 10px;
    gap: 6px;
    height: auto;
    min-height: unset;
    position: relative;
    padding-bottom: 56px;
  }

  .controls-left {
    flex: 1 1 auto;
    min-width: 0;
    max-width: none;
    order: 1;
  }

  .controls-right {
    flex: 0 0 auto;
    max-width: none;
    order: 2;
  }

  /* Volume positionné en absolu sur toute la largeur */
  .controls-right .volume-wrap {
    position: absolute;
    left: 10px;
    right: 10px;
    bottom: 6px;
    width: calc(100% - 20px);
    max-width: none;
    height: 44px;
  }

  .midi-connect {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
  }

  .transport-bar {
    flex: 1;
    max-width: 100%;
    min-width: 0;
  }

  .emergency-stop-btn {
    height: auto;
    min-height: 44px;
    padding: 0 12px;
  }

  .vol-slider {
    height: 44px;
    flex: 1;
  }

  .vol-slider::-webkit-slider-runnable-track { height: 14px; }
  .vol-slider::-moz-range-track             { height: 14px; }
  .vol-slider::-moz-range-progress          { height: 14px; }

  .vol-slider::-webkit-slider-thumb {
    width: 28px;
    height: 28px;
    margin-top: -7px;
  }
  .vol-slider::-moz-range-thumb {
    width: 28px;
    height: 28px;
  }

  .vol-icon  { font-size: 18px; }
  .vol-value { font-size: 12px; min-width: 36px; }

  .panel .audio-grid.animals-grid {
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(8, 1fr);
    grid-auto-flow: column;
  }

  .audio-grid:not(.audio-grid-cols) .audio-cat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* Onglet Films : 2 colonnes en portrait */
  .audio-grid.audio-grid-cols {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
  }
  
  .audio-grid-cols .audio-col {
    width: 100%;
    min-height: 0;
  }
}