*, *::before, *::after {
  box-sizing: border-box;
}

body {
  font-family: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  margin: 0;
  background: #27272a;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.toggles-wrapper {
  background: #18181b;
  padding: 50px;
  border-radius: 24px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), inset 0 1px 1px rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.premium-toggle {
  display: flex;
  align-items: center;
  gap: 20px;
  cursor: pointer;
  user-select: none;
}

.toggle-checkbox {
  display: none;
}

.toggle-track {
  position: relative;
  width: 90px;
  height: 44px;
  background: #0f0f11;
  border-radius: 22px;
  box-shadow: inset 0 4px 8px rgba(0, 0, 0, 0.8), inset 0 -2px 4px rgba(255, 255, 255, 0.05);
  border: 1px solid #000000;
  transition: background 0.4s ease;
}

/* Note: pseudo-class :checked is completely safe and robust */
.toggle-checkbox:checked + .toggle-track {
  background: #065f46;
  box-shadow: inset 0 4px 8px rgba(0, 0, 0, 0.8), inset 0 0 20px rgba(16, 185, 129, 0.4);
  border-color: #064e3b;
}

.toggle-thumb {
  position: absolute;
  top: 4px;
  left: 4px;
  width: 36px;
  height: 36px;
  background: linear-gradient(180deg, #52525b, #27272a);
  border-radius: 50%;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.6), inset 0 2px 2px rgba(255, 255, 255, 0.2);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 2;
}

.toggle-thumb::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: radial-gradient(circle, #3f3f46, #18181b);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.5);
}

.toggle-checkbox:checked + .toggle-track .toggle-thumb {
  transform: translateX(46px);
}

.indicator {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.8rem;
  font-weight: 800;
  color: #52525b;
  z-index: 1;
}

.indicator.on { left: 16px; }
.indicator.off { right: 14px; }

.toggle-checkbox:checked + .toggle-track .indicator.on {
  color: #34d399;
  text-shadow: 0 0 8px #34d399;
}

.toggle-label {
  color: #e4e4e7;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}