body {
    min-height: 100vh;
    background: linear-gradient(135deg, #4e54c8, #8f94fb);
}

.main-wrapper {
    display: flex;
    flex-direction: column;
    /* stack switcher above card */
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 100vh;
}

#mainFooter {
    margin-bottom: 16px;
}

.card-box {
    background: #fff;
    border-radius: 16px;
    padding: 20px;
    margin: auto;
}

.language-switcher-wrapper {
    display: flex;
    justify-content: flex-end;
}

.language-switcher-btn {
    padding: 10px 20px;
    border-radius: 25px;
    /* more rounded, pill shape */
    background: #fff;
    border: 2px solid transparent;
    /* smooth hover border effect */
    font-weight: 600;
    /* slightly bolder */
    font-size: 0.95rem;
    color: #4e54c8;
    /* theme color */
    text-decoration: none;
    margin-left: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.1);
    /* subtle shadow */
}

.language-switcher-btn:hover {
    background: linear-gradient(135deg, #4e54c8, #8f94fb);
    /* gradient hover */
    color: #fff;
    border-color: #4e54c8;
    transform: translateY(-2px);
    /* subtle lift effect */
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
    /* deeper shadow on hover */
}

.language-switcher-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Dark Mode Toggle Button */
.switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.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: 26px; width: 26px;
  left: 4px; bottom: 4px;
  background-color: white;
  transition: 0.4s;
  border-radius: 50%;
}

input:checked + .slider {
  background: linear-gradient(135deg, #4e54c8, #8f94fb);
}

input:checked + .slider:before {
  transform: translateX(26px);
}