feat: introduce customizable background options with new gradient and solid color styles; integrate BackgroundProvider and BackgroundCard components for enhanced user experience in settings and layout

app/globals.css

@@ -375,6 +375,54 @@
     overflow: hidden;
   }
 
+  /* Fonds personnalisables */
+  .page-background.bg-default {
+    background: linear-gradient(
+      135deg,
+      oklch(0.98 0.01 280) 0%,
+      oklch(0.97 0.012 270) 50%,
+      oklch(0.98 0.01 290) 100%
+    );
+  }
+
+  .page-background.bg-gradient-blue {
+    background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 50%, #7dd3fc 100%);
+  }
+
+  .page-background.bg-gradient-purple {
+    background: linear-gradient(135deg, #f3e8ff 0%, #e9d5ff 50%, #d8b4fe 100%);
+  }
+
+  .page-background.bg-gradient-green {
+    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 50%, #86efac 100%);
+  }
+
+  .page-background.bg-gradient-orange {
+    background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 50%, #fed7aa 100%);
+  }
+
+  .page-background.bg-solid-light {
+    background: #ffffff;
+  }
+
+  .page-background.bg-solid-dark {
+    background: #0f172a !important;
+  }
+
+  .page-background.bg-custom-image {
+    background-image: var(--custom-background-image);
+    background-size: cover;
+    background-position: center;
+    background-repeat: no-repeat;
+    background-attachment: fixed;
+  }
+
+  .page-background.bg-custom-image::before,
+  .page-background.bg-solid-light::before,
+  .page-background.bg-solid-dark::before {
+    display: none;
+  }
+
   .page-background::before {
     content: "";
     position: fixed;
@@ -415,7 +463,7 @@
     opacity: 1;
   }
 
-  .dark .page-background {
+  .dark .page-background.bg-default {
     background: linear-gradient(
       135deg,
       oklch(0.1 0.015 280) 0%,
@@ -424,6 +472,30 @@
     );
   }
 
+  .dark .page-background.bg-gradient-blue {
+    background: linear-gradient(135deg, #0c4a6e 0%, #075985 50%, #0369a1 100%);
+  }
+
+  .dark .page-background.bg-gradient-purple {
+    background: linear-gradient(135deg, #581c87 0%, #6b21a8 50%, #7c3aed 100%);
+  }
+
+  .dark .page-background.bg-gradient-green {
+    background: linear-gradient(135deg, #14532d 0%, #166534 50%, #16a34a 100%);
+  }
+
+  .dark .page-background.bg-gradient-orange {
+    background: linear-gradient(135deg, #7c2d12 0%, #9a3412 50%, #c2410c 100%);
+  }
+
+  .dark .page-background.bg-solid-light {
+    background: #f8fafc;
+  }
+
+  .dark .page-background.bg-solid-dark {
+    background: #0f172a !important;
+  }
+
   .dark .page-background::before {
     background:
       radial-gradient(
@@ -481,8 +553,11 @@
     content: "";
     position: absolute;
     inset: 0;
-    background-image: 
-      radial-gradient(circle at 1px 1px, color-mix(in srgb, var(--foreground) 2%, transparent) 1px, transparent 0);
+    background-image: radial-gradient(
+      circle at 1px 1px,
+      color-mix(in srgb, var(--foreground) 2%, transparent) 1px,
+      transparent 0
+    );
     background-size: 20px 20px;
     opacity: 0.15;
     pointer-events: none;
@@ -490,25 +565,46 @@
   }
 
   .dark .fintech-card::before {
-    background-image: 
-      radial-gradient(circle at 1px 1px, color-mix(in srgb, white 3%, transparent) 1px, transparent 0);
+    background-image: radial-gradient(
+      circle at 1px 1px,
+      color-mix(in srgb, white 3%, transparent) 1px,
+      transparent 0
+    );
     opacity: 0.1;
   }
 
   /* Texture plus prononcée pour les cards de statistiques */
   .stat-card-textured::before {
-    background-image: 
-      radial-gradient(circle at 1px 1px, color-mix(in srgb, var(--foreground) 3%, transparent) 1px, transparent 0),
-      radial-gradient(circle at 11px 11px, color-mix(in srgb, var(--foreground) 1.5%, transparent) 1px, transparent 0);
-    background-size: 16px 16px, 24px 24px;
+    background-image:
+      radial-gradient(
+        circle at 1px 1px,
+        color-mix(in srgb, var(--foreground) 3%, transparent) 1px,
+        transparent 0
+      ),
+      radial-gradient(
+        circle at 11px 11px,
+        color-mix(in srgb, var(--foreground) 1.5%, transparent) 1px,
+        transparent 0
+      );
+    background-size:
+      16px 16px,
+      24px 24px;
     opacity: 0.2;
     z-index: 1;
   }
 
   .dark .stat-card-textured::before {
-    background-image: 
-      radial-gradient(circle at 1px 1px, color-mix(in srgb, white 4%, transparent) 1px, transparent 0),
-      radial-gradient(circle at 11px 11px, color-mix(in srgb, white 2%, transparent) 1px, transparent 0);
+    background-image:
+      radial-gradient(
+        circle at 1px 1px,
+        color-mix(in srgb, white 4%, transparent) 1px,
+        transparent 0
+      ),
+      radial-gradient(
+        circle at 11px 11px,
+        color-mix(in srgb, white 2%, transparent) 1px,
+        transparent 0
+      );
     opacity: 0.15;
   }
 

app/layout.tsx

@@ -4,6 +4,7 @@ import { Geist, Geist_Mono } from "next/font/google";
 import "./globals.css";
 import { AuthSessionProvider } from "@/components/providers/session-provider";
 import { QueryProvider } from "@/components/providers/query-provider";
+import { BackgroundProvider } from "@/components/providers/background-provider";
 
 const _geist = Geist({ subsets: ["latin"] });
 const _geistMono = Geist_Mono({ subsets: ["latin"] });
@@ -23,6 +24,7 @@ export default function RootLayout({
   return (
     <html lang="fr">
       <body className="font-sans antialiased">
+        <BackgroundProvider />
         <QueryProvider>
           <AuthSessionProvider>{children}</AuthSessionProvider>
         </QueryProvider>

app/settings/page.tsx

@@ -9,6 +9,7 @@ import {
   BackupCard,
   PasswordCard,
   ReconcileDateRangeCard,
+  BackgroundCard,
 } from "@/components/settings";
 import { useBankingData } from "@/lib/hooks";
 import type { BankingData } from "@/lib/types";
@@ -126,6 +127,8 @@ export default function SettingsPage() {
 
         <PasswordCard />
 
+        <BackgroundCard />
+
         <ReconcileDateRangeCard />
 
         <DangerZoneCard

components/layout/page-layout.tsx

@@ -15,7 +15,7 @@ export function PageLayout({ children }: PageLayoutProps) {
     <SidebarContext.Provider
       value={{ open: sidebarOpen, setOpen: setSidebarOpen }}
     >
-      <div className="flex h-screen bg-background overflow-hidden page-background">
+      <div className="flex h-screen bg-background overflow-hidden page-background bg-default">
         <Sidebar open={sidebarOpen} onOpenChange={setSidebarOpen} />
         <main className="flex-1 overflow-auto overflow-x-hidden page-content">
           <div className="p-3 md:p-8 lg:p-10 space-y-4 md:space-y-8 max-w-full">

components/providers/background-provider.tsx

@@ -0,0 +1,89 @@
+"use client";
+
+import { useEffect } from "react";
+
+interface BackgroundSettings {
+  type: string;
+  customImageUrl?: string;
+}
+
+export function BackgroundProvider() {
+  useEffect(() => {
+    const applyBackground = () => {
+      try {
+        const pageBackground = document.querySelector(
+          ".page-background"
+        ) as HTMLElement;
+        if (!pageBackground) return;
+
+        const stored = localStorage.getItem("background-settings");
+        const settings: BackgroundSettings = stored
+          ? JSON.parse(stored)
+          : { type: "default" };
+
+        // Retirer toutes les classes de fond
+        pageBackground.classList.remove(
+          "bg-default",
+          "bg-gradient-blue",
+          "bg-gradient-purple",
+          "bg-gradient-green",
+          "bg-gradient-orange",
+          "bg-solid-light",
+          "bg-solid-dark",
+          "bg-custom-image"
+        );
+
+        const root = document.documentElement;
+
+        if (settings.type === "custom-image" && settings.customImageUrl) {
+          pageBackground.classList.add("bg-custom-image");
+          root.style.setProperty(
+            "--custom-background-image",
+            `url(${settings.customImageUrl})`
+          );
+        } else {
+          pageBackground.classList.add(`bg-${settings.type || "default"}`);
+          root.style.removeProperty("--custom-background-image");
+        }
+      } catch (error) {
+        console.error("Error applying background:", error);
+      }
+    };
+
+    // Appliquer immédiatement
+    applyBackground();
+
+    // Observer pour les changements de DOM (si le page-background est ajouté plus tard)
+    const observer = new MutationObserver(() => {
+      applyBackground();
+    });
+
+    observer.observe(document.body, {
+      childList: true,
+      subtree: true,
+    });
+
+    // Écouter les changements dans localStorage (autres onglets)
+    const handleStorageChange = (e: StorageEvent) => {
+      if (e.key === "background-settings") {
+        applyBackground();
+      }
+    };
+
+    // Écouter les événements personnalisés (même onglet)
+    const handleBackgroundChanged = () => {
+      applyBackground();
+    };
+
+    window.addEventListener("storage", handleStorageChange);
+    window.addEventListener("background-changed", handleBackgroundChanged);
+
+    return () => {
+      observer.disconnect();
+      window.removeEventListener("storage", handleStorageChange);
+      window.removeEventListener("background-changed", handleBackgroundChanged);
+    };
+  }, []);
+
+  return null;
+}

components/settings/background-card.tsx

@@ -0,0 +1,312 @@
+"use client";
+
+import { useState, useEffect, useMemo } from "react";
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { RadioGroup, RadioGroupItem } from "@/components/ui/radio-group";
+import { Image, X } from "lucide-react";
+import { useLocalStorage } from "@/hooks/use-local-storage";
+import { cn } from "@/lib/utils";
+
+type BackgroundType =
+  | "default"
+  | "gradient-blue"
+  | "gradient-purple"
+  | "gradient-green"
+  | "gradient-orange"
+  | "solid-light"
+  | "solid-dark"
+  | "custom-image";
+
+interface BackgroundSettings {
+  type: BackgroundType;
+  customImageUrl?: string;
+}
+
+const DEFAULT_BACKGROUNDS: Array<{
+  value: BackgroundType;
+  label: string;
+  preview: string;
+}> = [
+  {
+    value: "default",
+    label: "Par défaut",
+    preview:
+      "linear-gradient(135deg, oklch(0.98 0.01 280) 0%, oklch(0.97 0.012 270) 50%, oklch(0.98 0.01 290) 100%)",
+  },
+  {
+    value: "gradient-blue",
+    label: "Dégradé bleu",
+    preview: "linear-gradient(135deg, #e0f2fe 0%, #bae6fd 50%, #7dd3fc 100%)",
+  },
+  {
+    value: "gradient-purple",
+    label: "Dégradé violet",
+    preview: "linear-gradient(135deg, #f3e8ff 0%, #e9d5ff 50%, #d8b4fe 100%)",
+  },
+  {
+    value: "gradient-green",
+    label: "Dégradé vert",
+    preview: "linear-gradient(135deg, #dcfce7 0%, #bbf7d0 50%, #86efac 100%)",
+  },
+  {
+    value: "gradient-orange",
+    label: "Dégradé orange",
+    preview: "linear-gradient(135deg, #fff7ed 0%, #ffedd5 50%, #fed7aa 100%)",
+  },
+  {
+    value: "solid-light",
+    label: "Solide clair",
+    preview: "#ffffff",
+  },
+  {
+    value: "solid-dark",
+    label: "Solide sombre",
+    preview: "#1e293b",
+  },
+];
+
+export function BackgroundCard() {
+  const [backgroundSettings, setBackgroundSettings] =
+    useLocalStorage<BackgroundSettings>("background-settings", {
+      type: "default",
+    });
+
+  const currentSettings = useMemo<BackgroundSettings>(
+    () => backgroundSettings || { type: "default" },
+    [backgroundSettings]
+  );
+
+  const [customImageUrl, setCustomImageUrl] = useState(
+    currentSettings.customImageUrl || ""
+  );
+  const [showCustomInput, setShowCustomInput] = useState(
+    currentSettings.type === "custom-image"
+  );
+
+  // Synchroniser customImageUrl avec les settings
+  useEffect(() => {
+    if (
+      currentSettings.type === "custom-image" &&
+      currentSettings.customImageUrl
+    ) {
+      setCustomImageUrl(currentSettings.customImageUrl);
+    }
+  }, [currentSettings]);
+
+  const applyBackground = (settings: BackgroundSettings) => {
+    const root = document.documentElement;
+    const pageBackground = document.querySelector(
+      ".page-background"
+    ) as HTMLElement;
+
+    if (!pageBackground) return;
+
+    // Retirer toutes les classes de fond
+    pageBackground.classList.remove(
+      "bg-default",
+      "bg-gradient-blue",
+      "bg-gradient-purple",
+      "bg-gradient-green",
+      "bg-gradient-orange",
+      "bg-solid-light",
+      "bg-solid-dark",
+      "bg-custom-image"
+    );
+
+    if (settings.type === "custom-image" && settings.customImageUrl) {
+      pageBackground.classList.add("bg-custom-image");
+      root.style.setProperty(
+        "--custom-background-image",
+        `url(${settings.customImageUrl})`
+      );
+    } else {
+      pageBackground.classList.add(`bg-${settings.type || "default"}`);
+      root.style.removeProperty("--custom-background-image");
+    }
+
+    // Déclencher un événement personnalisé pour notifier les autres composants
+    window.dispatchEvent(
+      new CustomEvent("background-changed", { detail: settings })
+    );
+  };
+
+  const handleBackgroundChange = (type: BackgroundType) => {
+    if (type === "custom-image") {
+      setShowCustomInput(true);
+      if (customImageUrl.trim()) {
+        const newSettings: BackgroundSettings = {
+          type,
+          customImageUrl: customImageUrl.trim(),
+        };
+        setBackgroundSettings(newSettings);
+        applyBackground(newSettings);
+      } else {
+        const newSettings: BackgroundSettings = { type };
+        setBackgroundSettings(newSettings);
+      }
+    } else {
+      setShowCustomInput(false);
+      const newSettings: BackgroundSettings = { type };
+      setBackgroundSettings(newSettings);
+      applyBackground(newSettings);
+    }
+  };
+
+  const handleCustomImageSubmit = () => {
+    if (customImageUrl.trim()) {
+      const newSettings: BackgroundSettings = {
+        type: "custom-image",
+        customImageUrl: customImageUrl.trim(),
+      };
+      setBackgroundSettings(newSettings);
+      applyBackground(newSettings);
+    }
+  };
+
+  const handleRemoveCustomImage = () => {
+    setCustomImageUrl("");
+    setShowCustomInput(false);
+    const newSettings: BackgroundSettings = { type: "default" };
+    setBackgroundSettings(newSettings);
+    applyBackground(newSettings);
+  };
+
+  // Appliquer le fond au chargement et quand il change
+  useEffect(() => {
+    if (typeof window !== "undefined") {
+      applyBackground(currentSettings);
+    }
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [currentSettings.type, currentSettings.customImageUrl]);
+
+  return (
+    <Card className="card-hover">
+      <CardHeader>
+        <CardTitle className="flex items-center gap-2">
+          <Image className="w-5 h-5" />
+          Fond du site
+        </CardTitle>
+        <CardDescription>
+          Personnalisez l'apparence du fond de l'application
+        </CardDescription>
+      </CardHeader>
+      <CardContent className="space-y-6">
+        <RadioGroup
+          value={currentSettings.type}
+          onValueChange={(value) =>
+            handleBackgroundChange(value as BackgroundType)
+          }
+        >
+          <div className="grid grid-cols-2 md:grid-cols-3 gap-3">
+            {DEFAULT_BACKGROUNDS.map((bg) => (
+              <label
+                key={bg.value}
+                htmlFor={`bg-${bg.value}`}
+                className={cn(
+                  "relative flex flex-col items-center justify-center p-4 rounded-lg border-2 cursor-pointer transition-all",
+                  currentSettings.type === bg.value
+                    ? "border-primary bg-primary/5"
+                    : "border-border hover:border-primary/50"
+                )}
+              >
+                <RadioGroupItem
+                  value={bg.value}
+                  id={`bg-${bg.value}`}
+                  className="sr-only"
+                />
+                <div
+                  className="w-full h-16 rounded-md mb-2 border border-border/50"
+                  style={{ background: bg.preview }}
+                />
+                <span className="text-xs font-medium text-center">
+                  {bg.label}
+                </span>
+              </label>
+            ))}
+            <label
+              htmlFor="bg-custom-image"
+              className={cn(
+                "relative flex flex-col items-center justify-center p-4 rounded-lg border-2 cursor-pointer transition-all",
+                currentSettings.type === "custom-image"
+                  ? "border-primary bg-primary/5"
+                  : "border-border hover:border-primary/50"
+              )}
+            >
+              <RadioGroupItem
+                value="custom-image"
+                id="bg-custom-image"
+                className="sr-only"
+              />
+              <div className="w-full h-16 rounded-md mb-2 border border-border/50 bg-muted flex items-center justify-center">
+                <Image className="w-6 h-6 text-muted-foreground" />
+              </div>
+              <span className="text-xs font-medium text-center">
+                Image personnalisée
+              </span>
+            </label>
+          </div>
+        </RadioGroup>
+
+        {showCustomInput && (
+          <div className="space-y-3 p-4 rounded-lg bg-muted/30 border border-border">
+            <div className="space-y-2">
+              <Label htmlFor="custom-image-url">URL de l'image</Label>
+              <div className="flex gap-2">
+                <Input
+                  id="custom-image-url"
+                  type="url"
+                  placeholder="https://example.com/image.jpg"
+                  value={customImageUrl}
+                  onChange={(e) => setCustomImageUrl(e.target.value)}
+                  onKeyDown={(e) => {
+                    if (e.key === "Enter") {
+                      handleCustomImageSubmit();
+                    }
+                  }}
+                />
+                {customImageUrl && (
+                  <Button
+                    variant="outline"
+                    size="icon"
+                    onClick={handleRemoveCustomImage}
+                  >
+                    <X className="w-4 h-4" />
+                  </Button>
+                )}
+              </div>
+            </div>
+            <Button
+              onClick={handleCustomImageSubmit}
+              disabled={!customImageUrl.trim()}
+            >
+              Appliquer l'image
+            </Button>
+            {currentSettings.type === "custom-image" &&
+              currentSettings.customImageUrl && (
+                <div className="mt-3">
+                  <div className="text-xs text-muted-foreground mb-2">
+                    Aperçu :
+                  </div>
+                  <div
+                    className="w-full h-32 rounded-md border border-border bg-cover bg-center bg-no-repeat"
+                    style={{
+                      backgroundImage: `url(${currentSettings.customImageUrl})`,
+                    }}
+                  />
+                </div>
+              )}
+          </div>
+        )}
+      </CardContent>
+    </Card>
+  );
+}

components/settings/index.ts

@@ -4,3 +4,4 @@ export { OFXInfoCard } from "./ofx-info-card";
 export { BackupCard } from "./backup-card";
 export { PasswordCard } from "./password-card";
 export { ReconcileDateRangeCard } from "./reconcile-date-range-card";
+export { BackgroundCard } from "./background-card";