body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  background: #f4f4f9;
  color: #333;
}

.container {
  max-width: 1000px;
  margin: auto;
  padding: 20px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

h1 {
  margin: 0;
  font-size: 24px;
}

.toggle {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 28px;
}

.toggle input {
  display: none;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0;
  right: 0; bottom: 0;
  background-color: #ccc;
  transition: 0.4s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 22px;
  width: 22px;
  left: 4px;
  bottom: 3px;
  background-color: white;
  transition: 0.4s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: #4CAF50;
}

input:checked + .slider:before {
  transform: translateX(28px);
}

#calendar {
  background: white;
  border-radius: 8px;
  box-shadow: 0 0 10px #ccc;
  padding: 20px;
}

#news-widget {
  margin-top: 30px;
}