body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, sans-serif;
  background: transparent;
}

/* BOUTON BURGER */
#menu-button {
  position: fixed;
  top: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  border: none;
  background: #111;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  transition: background 0.3s ease;
  z-index: 1000;
}

.burger-square {
  width: 24px;
  height: 24px;
  background: #fff;
  border-radius: 4px;
  transition: transform 0.4s ease, background 0.3s ease;
}

#menu-button:hover {
  background: #222;
}

#menu-button:hover .burger-square {
  transform: rotate(90deg);
  background: #2ecc71;
}

/* PANNEAU MENU */
#menu-panel {
  position: fixed;
  top: 80px;
  right: 20px;
  width: 250px;
  background: rgba(10,10,10,0.95);
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.7);
  display: none;
  z-index: 999;
  padding-bottom: 15px;
}

#menu-panel ul {
  list-style: none;
  padding: 10px 0;
  margin: 0;
  display: flex;
  justify-content: space-around;
}

#menu-panel ul li {
  padding: 10px 0;
  color: #eee;
  cursor: pointer;
  font-weight: 500;
  transition: background 0.2s, color 0.2s;
  flex: 1;
  text-align: center;
}

#menu-panel ul li.active, #menu-panel ul li:hover {
  background: #2ecc71;
  color: #111;
  border-radius: 6px;
}

/* TABS */
.tab {
  padding: 10px 20px;
}

/* SLIDERS */
.setting {
  margin-bottom: 20px;
}

.label {
  display: block;
  font-size: 12px;
  color: #aaa;
  margin-bottom: 8px;
}

.slider {
  position: relative;
}

.slider input[type="range"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
}

.track {
  height: 20px;
  background: #222;
  border-radius: 10px;
  overflow: hidden;
  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.slider:hover .track {
  background: #333;
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.8);
}

.fill {
  height: 100%;
  width: 0%;
  background: red;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 8px;
  box-sizing: border-box;
  transition: width 0.15s linear, background-color 0.15s linear;
}

.value {
  font-size: 14px;
  font-weight: 700;
  color: #FFF;
  text-shadow:
    -2px 0 #000,
     2px 0 #000,
     0 -2px #000,
     0  2px #000;
  mix-blend-mode: screen;
  pointer-events: none;
  transition: color 0.2s ease;
}