/* ══ grid-row-start ════════════════════════════════════════════════════════ */

/* auto */
a  { grid-row-start: auto }

/* named line */
b  { grid-row-start: header }
c  { grid-row-start: row-start }

/* numeric index (non-zero integers only) */
d  { grid-row-start: 1 }
e  { grid-row-start: 3 }
f  { grid-row-start: -1 }
g  { grid-row-start: -3 }

/* numeric + named: <integer> && <custom-ident>? */
h  { grid-row-start: 1 header }
i  { grid-row-start: -2 row-start }

/* span with integer */
j  { grid-row-start: span 2 }
k  { grid-row-start: span 1 }

/* span with named line */
l  { grid-row-start: span header }
m  { grid-row-start: span row-end }

/* span with both (|| inside span) */
n  { grid-row-start: span 2 header }
o  { grid-row-start: span header 2 }   /* either order */