From e89e2aed34f307177b82acf6c83c599be7124841 Mon Sep 17 00:00:00 2001
From: Maaxxs <61059039+MaaxxsDev@users.noreply.github.com>
Date: Tue, 7 Jul 2026 00:23:44 +0200
Subject: [PATCH] Make the grain texture universally visible via a fixed
 overlay

Previously the grain lived on .page-texture's own background-image, so
any section with its own opaque background color (bg-neutral-50 bands)
painted right over it. Moved the grain to a fixed, full-viewport overlay
that sits on top of everything instead.

Also fixed a failed attempt at using mix-blend-mode: overlay for a
single theme-agnostic texture - that blend mode has almost no visible
effect on backgrounds this close to pure white/black, since its math
compresses toward the backdrop at the extremes. Back to plain alpha
transparency with separate light/dark speckle colors, moderate opacity.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
---
 hifi-src/src/components/PublicLayout.jsx |  1 +
 hifi-src/src/index.css                   | 28 +++++++++++++++++++-----
 2 files changed, 23 insertions(+), 6 deletions(-)

diff --git a/hifi-src/src/components/PublicLayout.jsx b/hifi-src/src/components/PublicLayout.jsx
index 04f8350..3754947 100644
--- a/hifi-src/src/components/PublicLayout.jsx
+++ b/hifi-src/src/components/PublicLayout.jsx
@@ -62,6 +62,7 @@ export default function PublicLayout() {
       <MaintenanceProvider value={{ ...status, bypass }}>
         <SiteSettingsProvider value={siteSettings}>
           <div className="page-texture flex min-h-screen flex-col text-neutral-900 dark:text-neutral-100">
+            <div className="grain-overlay" aria-hidden="true" />
             {bypass && status.global.enabled && <MaintenanceBypassBanner />}
             <ScrollProgress />
             <Navbar />
diff --git a/hifi-src/src/index.css b/hifi-src/src/index.css
index 7538959..51e7086 100644
--- a/hifi-src/src/index.css
+++ b/hifi-src/src/index.css
@@ -11,16 +11,32 @@ html {
   mask-image: linear-gradient(to right, transparent, black 6%, black 94%, transparent);
 }
 
-/* Deutlich sichtbares Papierkorn als Hintergrundstruktur statt einer reinen Flaeche -
-   erinnert an grobkoerniges Papier/Filmkorn. Bewusst kraeftiger eingestellt (hoher Alpha-
-   Multiplikator in der feColorMatrix), damit die Struktur ohne genaues Hinsehen auffaellt. */
+/* Grundflaeche der Seite - die eigentliche Koernung kommt separat vom .grain-overlay,
+   damit sie ueber JEDEM Abschnitt sichtbar bleibt, auch ueber Bereichen mit eigener
+   deckender Hintergrundfarbe (z.B. bg-neutral-50 Baendern). */
 .page-texture {
   background-color: #f6f5f0;
-  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='3' stitchTiles='stitch' result='noise'/%3E%3CfeColorMatrix in='noise' type='matrix' values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.35 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
-  background-size: 180px 180px;
 }
 
 .dark .page-texture {
   background-color: #0a0b07;
-  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='3' stitchTiles='stitch' result='noise'/%3E%3CfeColorMatrix in='noise' type='matrix' values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.4 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
+}
+
+/* Papierkorn als fixierter Ueberzug ueber der gesamten Seite statt als Hintergrundbild
+   eines einzelnen Elements, damit es ueber JEDER Sektion sichtbar bleibt (auch ueber
+   Baendern mit eigener deckender bg-neutral-50-Farbe). Normale Alpha-Transparenz statt
+   mix-blend-mode: "overlay"/"soft-light" haben auf Hintergruende nahe Weiss/Schwarz (wie
+   unsere Basisfarben) fast keinen sichtbaren Effekt, da die Blend-Mathematik dort kaum
+   noch Kontrast erzeugt - reine Deckkraft-Ueberlagerung funktioniert unabhaengig davon. */
+.grain-overlay {
+  position: fixed;
+  inset: 0;
+  z-index: 40;
+  pointer-events: none;
+  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='3' stitchTiles='stitch' result='noise'/%3E%3CfeColorMatrix in='noise' type='matrix' values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.18 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
+  background-size: 180px 180px;
+}
+
+.dark .grain-overlay {
+  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='3' stitchTiles='stitch' result='noise'/%3E%3CfeColorMatrix in='noise' type='matrix' values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.2 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
 }