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[CLOV-CSS] Migrate bpk-component-overlay to CSS custom properties #4927

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Gert-Jan Vercauteren (gert-janvercauteren) wants to merge 3 commits into from
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[CLOV-CSS] Migrate bpk-component-overlay to CSS custom properties #4927

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e2ff88d
[CLOV-CSS] Migrate bpk-component-overlay to CSS custom properties
gert-janvercauteren Jul 22, 2026
7dda63b
chore: reset non-CSS files to main
gert-janvercauteren Jul 22, 2026
5df656a
[CLOV-CSS] Remove gap comments from SCSS
gert-janvercauteren Jul 22, 2026
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168 changes: 134 additions & 34 deletions packages/backpack-web/src/bpk-component-overlay/src/BpkOverlay.module.scss
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,9 @@

@use '../../bpk-mixins/tokens';

// CSS var wrapping uses color-mix(in srgb, COLOR X%, transparent) because
// rgba() cannot accept CSS custom properties as the colour argument.
// --bpk-text-primary flips automatically between light (#161616) and dark (#ffffff).
.bpk-overlay {
&__wrapper {
position: relative;
Expand All @@ -40,40 +43,67 @@

&--solid {
&-low {
background: rgba(tokens.$bpk-text-primary-day, 0.15);
background: color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 15%,
transparent
);
Comment on lines +46 to +50
}

&-medium {
background: rgba(tokens.$bpk-text-primary-day, 0.3);
background: color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 30%,
transparent
);
}

&-high {
background: rgba(tokens.$bpk-text-primary-day, 0.4);
background: color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 40%,
transparent
);
}
}

&--top {
&-low {
background: linear-gradient(
180deg,
rgba(tokens.$bpk-text-primary-day, 0.15) 0%,
rgba(tokens.$bpk-text-primary-day, 0) 100%
color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 15%,
transparent
)
0%,
transparent 100%
);
Comment on lines 72 to 81
}

&-medium {
background: linear-gradient(
180deg,
rgba(tokens.$bpk-text-primary-day, 0.3) 0%,
rgba(tokens.$bpk-text-primary-day, 0) 100%
color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 30%,
transparent
)
0%,
transparent 100%
);
}

&-high {
background: linear-gradient(
180deg,
rgba(tokens.$bpk-text-primary-day, 0.4) 0%,
rgba(tokens.$bpk-text-primary-day, 0) 100%
color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 40%,
transparent
)
0%,
transparent 100%
);
}
}
Expand All @@ -82,24 +112,39 @@
&-low {
background: linear-gradient(
180deg,
rgba(tokens.$bpk-text-primary-day, 0) 0%,
rgba(tokens.$bpk-text-primary-day, 0.15) 100%
transparent 0%,
color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 15%,
transparent
)
100%
);
}

&-medium {
background: linear-gradient(
180deg,
rgba(tokens.$bpk-text-primary-day, 0) 0%,
rgba(tokens.$bpk-text-primary-day, 0.3) 100%
transparent 0%,
color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 30%,
transparent
)
100%
);
}

&-high {
background: linear-gradient(
180deg,
rgba(tokens.$bpk-text-primary-day, 0) 0%,
rgba(tokens.$bpk-text-primary-day, 0.4) 100%
transparent 0%,
color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 40%,
transparent
)
100%
);
}
}
Expand All @@ -108,24 +153,39 @@
&-low {
background: linear-gradient(
90deg,
rgba(tokens.$bpk-text-primary-day, 0.15) 0%,
rgba(tokens.$bpk-text-primary-day, 0) 98.5%
color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 15%,
transparent
)
0%,
transparent 98.5%
);
}

&-medium {
background: linear-gradient(
90deg,
rgba(tokens.$bpk-text-primary-day, 0.3) 0%,
rgba(tokens.$bpk-text-primary-day, 0) 98.5%
color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 30%,
transparent
)
0%,
transparent 98.5%
);
}

&-high {
background: linear-gradient(
90deg,
rgba(tokens.$bpk-text-primary-day, 0.4) 0%,
rgba(tokens.$bpk-text-primary-day, 0) 98.5%
color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 40%,
transparent
)
0%,
transparent 98.5%
);
}
}
Expand All @@ -134,48 +194,88 @@
&-low {
background: linear-gradient(
90deg,
rgba(tokens.$bpk-text-primary-day, 0) 0%,
rgba(tokens.$bpk-text-primary-day, 0.15) 98.5%
transparent 0%,
color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 15%,
transparent
)
98.5%
);
}

&-medium {
background: linear-gradient(
90deg,
rgba(tokens.$bpk-text-primary-day, 0) 0%,
rgba(tokens.$bpk-text-primary-day, 0.3) 98.5%
transparent 0%,
color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 30%,
transparent
)
98.5%
);
}

&-high {
background: linear-gradient(
90deg,
rgba(tokens.$bpk-text-primary-day, 0) 0%,
rgba(tokens.$bpk-text-primary-day, 0.4) 98.5%
transparent 0%,
color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 40%,
transparent
)
98.5%
);
}
}

&--vignette {
box-shadow: inset 0 0 50px rgba(tokens.$bpk-text-primary-day, 0.12);
box-shadow: inset 0 0 50px
color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 12%,
transparent
);
}

&--heavy {
&-top {
background: linear-gradient(
180deg,
rgba(tokens.$bpk-text-primary-day, 0.45) 0%,
rgba(tokens.$bpk-text-primary-day, 0.15) 60%,
rgba(tokens.$bpk-text-primary-day, 0.05) 80%,
rgba(tokens.$bpk-text-primary-day, 0) 100%
color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 45%,
transparent
)
0%,
color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 15%,
transparent
)
60%,
color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 5%,
transparent
)
80%,
transparent 100%
);
}

&-bottom {
background: linear-gradient(
180deg,
rgba(tokens.$bpk-text-primary-day, 0) 0%,
rgba(tokens.$bpk-text-primary-day, 0.9) 100%
transparent 0%,
color-mix(
in srgb,
var(--bpk-text-primary, tokens.$bpk-text-primary-day) 90%,
transparent
)
100%
);
}
}
Expand Down
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