.theme-toggle {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 30;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
    transition: border-color 160ms ease, background-color 160ms ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
    border-color: #bdb5aa;
    outline: none;
}

.theme-toggle i {
    font-size: 15px;
    line-height: 1;
}