/*
 * Reference specification:
 *   https://www.w3.org/TR/2024/CRD-compositing-1-20240321/#propdef-background-blend-mode
 */


/* ── 1. Single value — all 16 blend mode keywords ────────────────────────── */

a { background-blend-mode: normal }
b { background-blend-mode: multiply }
c { background-blend-mode: screen }
d { background-blend-mode: overlay }
e { background-blend-mode: darken }
f { background-blend-mode: lighten }
g { background-blend-mode: color-dodge }
h { background-blend-mode: color-burn }
i { background-blend-mode: hard-light }
j { background-blend-mode: soft-light }
k { background-blend-mode: difference }
l { background-blend-mode: exclusion }
m { background-blend-mode: hue }
n { background-blend-mode: saturation }
o { background-blend-mode: color }
p { background-blend-mode: luminosity }


/* ── 2. Two values (two background layers) ───────────────────────────────── */

q  { background-blend-mode: normal, normal }
r  { background-blend-mode: multiply, screen }
s  { background-blend-mode: overlay, multiply }
t  { background-blend-mode: darken, lighten }
u  { background-blend-mode: color-dodge, color-burn }
v  { background-blend-mode: hard-light, soft-light }
w  { background-blend-mode: difference, exclusion }
x  { background-blend-mode: hue, saturation }
aa { background-blend-mode: color, luminosity }
ab { background-blend-mode: normal, multiply }
ac { background-blend-mode: screen, normal }


/* ── 3. Three values (three background layers) ───────────────────────────── */

ad { background-blend-mode: multiply, screen, overlay }
ae { background-blend-mode: normal, multiply, normal }
af { background-blend-mode: darken, lighten, difference }
ag { background-blend-mode: hue, saturation, luminosity }


/* ── 4. Four or more values ──────────────────────────────────────────────── */

ah { background-blend-mode: normal, multiply, screen, overlay }
ai { background-blend-mode: darken, lighten, color-dodge, color-burn,
                             hard-light }


/* ── 5. All 16 values in one declaration ─────────────────────────────────── */
/* Useful for a stylesheet that sets one mode per background layer.          */

aj {
  background-blend-mode: normal, multiply, screen, overlay,
                          darken, lighten, color-dodge, color-burn,
                          hard-light, soft-light, difference, exclusion,
                          hue, saturation, color, luminosity;
}


/* ── 6. CSS-wide keywords ────────────────────────────────────────────────── */

y { background-blend-mode: inherit }
z { background-blend-mode: initial }