/* Toggle light mode / dark mode button */
.theme-switch {
    background: none;
    border: none;
    cursor: pointer;
    width: 4vh;
    height: 4vh;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin-top: auto;
    border-radius: 2vh;
}
.theme-switch:hover {
    background-color: var(--primary-color);
}
.theme-switch img.theme-icon,
.theme-switch svg.theme-icon {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: opacity 1s ease, transform 1s ease;
    position: absolute;
    margin-top: auto;
}
img.theme-icon.dark-mode-icon {
    top: 0vh;
    left: 0vh;
}
svg.theme-icon.light-mode-icon {
    width: 3.5vh;
    height: 3.5vh;
    top: 0.25vh;
    left: 0.25vh;
}
svg.theme-icon.light-mode-icon .background {
    fill: var(--colour-secondary);
}
.theme-switch:hover svg.theme-icon.light-mode-icon .background {
    fill: var(--primary-color);
}
svg.theme-icon.light-mode-icon .sun {
    fill: var(--colour-text);
    stroke: var(--colour-text);
}
/*
svg.theme-icon {
    width: 2vh;
    height: 2vh;
}
*/

/* Hide the icon that doesn't match the current theme */
[data-theme="light"] .theme-switch .dark-mode-icon {
    opacity: 1;
    display: block;
    transform: rotate(0deg);
}
[data-theme="light"] .theme-switch .light-mode-icon {
    opacity: 0;
    display: none;
    transform: rotate(90deg);
}

[data-theme="dark"] .theme-switch .dark-mode-icon {
    opacity: 0;
    display: none;
    transform: rotate(-90deg);
}
[data-theme="dark"] .theme-switch .light-mode-icon {
    opacity: 1;
    display: block;
    transform: rotate(0deg);
}