diff --git a/memento-note/app/(main)/settings/appearance/appearance-settings-client.tsx b/memento-note/app/(main)/settings/appearance/appearance-settings-client.tsx
index 1b3cba1..8163a89 100644
--- a/memento-note/app/(main)/settings/appearance/appearance-settings-client.tsx
+++ b/memento-note/app/(main)/settings/appearance/appearance-settings-client.tsx
@@ -108,6 +108,12 @@ export function AppearanceSettingsClient({ initialFontSize, initialTheme, initia
             { value: 'dark', label: t('settings.themeDark') },
             { value: 'sepia', label: 'Sepia' },
             { value: 'midnight', label: 'Midnight' },
+            { value: 'rose', label: 'Rose' },
+            { value: 'green', label: 'Green' },
+            { value: 'lavender', label: 'Lavender' },
+            { value: 'sand', label: 'Sand' },
+            { value: 'ocean', label: 'Ocean' },
+            { value: 'sunset', label: 'Sunset' },
             { value: 'auto', label: t('settings.themeSystem') },
           ]}
           onChange={handleThemeChange}
diff --git a/memento-note/app/globals.css b/memento-note/app/globals.css
index 43d0d96..b888d86 100644
--- a/memento-note/app/globals.css
+++ b/memento-note/app/globals.css
@@ -408,6 +408,358 @@
   --sidebar-ring: oklch(0.58 0.02 45);
 }
 
+/* ──────────────────────────────────────────────
+   PASTEL THEMES — 6 additional color themes
+   ────────────────────────────────────────────── */
+
+/* Rose — soft pink tones */
+[data-theme='rose'] {
+  --background: oklch(0.97 0.01 350);
+  --foreground: oklch(0.22 0.02 350);
+  --card: oklch(0.99 0.005 350);
+  --card-foreground: oklch(0.22 0.02 350);
+  --popover: oklch(0.99 0.005 350);
+  --popover-foreground: oklch(0.22 0.02 350);
+  --primary: oklch(0.55 0.15 350);
+  --primary-foreground: oklch(0.99 0 0);
+  --secondary: oklch(0.93 0.02 350);
+  --secondary-foreground: oklch(0.22 0.02 350);
+  --muted: oklch(0.92 0.015 350);
+  --muted-foreground: oklch(0.55 0.015 350);
+  --accent: oklch(0.92 0.02 350);
+  --accent-foreground: oklch(0.22 0.02 350);
+  --destructive: oklch(0.6 0.18 25);
+  --border: oklch(0.85 0.02 350);
+  --input: oklch(0.85 0.02 350);
+  --ring: oklch(0.55 0.15 350);
+  --sidebar: oklch(0.95 0.015 350);
+  --sidebar-foreground: oklch(0.22 0.02 350);
+  --sidebar-primary: oklch(0.55 0.15 350);
+  --sidebar-primary-foreground: oklch(0.99 0 0);
+  --sidebar-accent: oklch(0.92 0.02 350);
+  --sidebar-accent-foreground: oklch(0.22 0.02 350);
+  --sidebar-border: oklch(0.88 0.02 350);
+  --sidebar-ring: oklch(0.6 0.015 350);
+}
+[data-theme='rose'].dark {
+  --background: oklch(0.14 0.01 350);
+  --foreground: oklch(0.95 0.01 350);
+  --card: oklch(0.18 0.015 350);
+  --card-foreground: oklch(0.95 0.01 350);
+  --popover: oklch(0.18 0.015 350);
+  --popover-foreground: oklch(0.95 0.01 350);
+  --primary: oklch(0.6 0.12 350);
+  --primary-foreground: oklch(0.1 0 0);
+  --secondary: oklch(0.24 0.02 350);
+  --secondary-foreground: oklch(0.95 0.01 350);
+  --muted: oklch(0.22 0.015 350);
+  --muted-foreground: oklch(0.55 0.02 350);
+  --accent: oklch(0.26 0.025 350);
+  --accent-foreground: oklch(0.95 0.01 350);
+  --destructive: oklch(0.65 0.18 25);
+  --border: oklch(0.33 0.02 350);
+  --input: oklch(0.33 0.02 350);
+  --ring: oklch(0.6 0.02 350);
+  --sidebar: oklch(0.12 0.01 350);
+  --sidebar-foreground: oklch(0.95 0.01 350);
+  --sidebar-primary: oklch(0.6 0.12 350);
+  --sidebar-primary-foreground: oklch(0.1 0 0);
+  --sidebar-accent: oklch(0.26 0.025 350);
+  --sidebar-accent-foreground: oklch(0.95 0.01 350);
+  --sidebar-border: oklch(0.33 0.02 350);
+  --sidebar-ring: oklch(0.6 0.02 350);
+}
+
+/* Green — soft sage/mint tones */
+[data-theme='green'] {
+  --background: oklch(0.97 0.01 155);
+  --foreground: oklch(0.22 0.03 155);
+  --card: oklch(0.99 0.005 155);
+  --card-foreground: oklch(0.22 0.03 155);
+  --popover: oklch(0.99 0.005 155);
+  --popover-foreground: oklch(0.22 0.03 155);
+  --primary: oklch(0.5 0.12 155);
+  --primary-foreground: oklch(0.99 0 0);
+  --secondary: oklch(0.93 0.02 155);
+  --secondary-foreground: oklch(0.22 0.03 155);
+  --muted: oklch(0.92 0.015 155);
+  --muted-foreground: oklch(0.55 0.02 155);
+  --accent: oklch(0.92 0.02 155);
+  --accent-foreground: oklch(0.22 0.03 155);
+  --destructive: oklch(0.6 0.18 25);
+  --border: oklch(0.85 0.02 155);
+  --input: oklch(0.85 0.02 155);
+  --ring: oklch(0.5 0.12 155);
+  --sidebar: oklch(0.95 0.015 155);
+  --sidebar-foreground: oklch(0.22 0.03 155);
+  --sidebar-primary: oklch(0.5 0.12 155);
+  --sidebar-primary-foreground: oklch(0.99 0 0);
+  --sidebar-accent: oklch(0.92 0.02 155);
+  --sidebar-accent-foreground: oklch(0.22 0.03 155);
+  --sidebar-border: oklch(0.88 0.02 155);
+  --sidebar-ring: oklch(0.6 0.015 155);
+}
+[data-theme='green'].dark {
+  --background: oklch(0.14 0.01 155);
+  --foreground: oklch(0.95 0.01 155);
+  --card: oklch(0.18 0.015 155);
+  --card-foreground: oklch(0.95 0.01 155);
+  --popover: oklch(0.18 0.015 155);
+  --popover-foreground: oklch(0.95 0.01 155);
+  --primary: oklch(0.6 0.1 155);
+  --primary-foreground: oklch(0.1 0 0);
+  --secondary: oklch(0.24 0.02 155);
+  --secondary-foreground: oklch(0.95 0.01 155);
+  --muted: oklch(0.22 0.015 155);
+  --muted-foreground: oklch(0.55 0.02 155);
+  --accent: oklch(0.26 0.02 155);
+  --accent-foreground: oklch(0.95 0.01 155);
+  --destructive: oklch(0.65 0.18 25);
+  --border: oklch(0.33 0.02 155);
+  --input: oklch(0.33 0.02 155);
+  --ring: oklch(0.6 0.02 155);
+  --sidebar: oklch(0.12 0.01 155);
+  --sidebar-foreground: oklch(0.95 0.01 155);
+  --sidebar-primary: oklch(0.6 0.1 155);
+  --sidebar-primary-foreground: oklch(0.1 0 0);
+  --sidebar-accent: oklch(0.26 0.02 155);
+  --sidebar-accent-foreground: oklch(0.95 0.01 155);
+  --sidebar-border: oklch(0.33 0.02 155);
+  --sidebar-ring: oklch(0.6 0.02 155);
+}
+
+/* Lavender — soft purple tones */
+[data-theme='lavender'] {
+  --background: oklch(0.97 0.01 290);
+  --foreground: oklch(0.22 0.02 290);
+  --card: oklch(0.99 0.005 290);
+  --card-foreground: oklch(0.22 0.02 290);
+  --popover: oklch(0.99 0.005 290);
+  --popover-foreground: oklch(0.22 0.02 290);
+  --primary: oklch(0.52 0.14 290);
+  --primary-foreground: oklch(0.99 0 0);
+  --secondary: oklch(0.93 0.02 290);
+  --secondary-foreground: oklch(0.22 0.02 290);
+  --muted: oklch(0.92 0.015 290);
+  --muted-foreground: oklch(0.55 0.02 290);
+  --accent: oklch(0.92 0.02 290);
+  --accent-foreground: oklch(0.22 0.02 290);
+  --destructive: oklch(0.6 0.18 25);
+  --border: oklch(0.85 0.02 290);
+  --input: oklch(0.85 0.02 290);
+  --ring: oklch(0.52 0.14 290);
+  --sidebar: oklch(0.95 0.015 290);
+  --sidebar-foreground: oklch(0.22 0.02 290);
+  --sidebar-primary: oklch(0.52 0.14 290);
+  --sidebar-primary-foreground: oklch(0.99 0 0);
+  --sidebar-accent: oklch(0.92 0.02 290);
+  --sidebar-accent-foreground: oklch(0.22 0.02 290);
+  --sidebar-border: oklch(0.88 0.02 290);
+  --sidebar-ring: oklch(0.6 0.015 290);
+}
+[data-theme='lavender'].dark {
+  --background: oklch(0.14 0.01 290);
+  --foreground: oklch(0.95 0.01 290);
+  --card: oklch(0.18 0.015 290);
+  --card-foreground: oklch(0.95 0.01 290);
+  --popover: oklch(0.18 0.015 290);
+  --popover-foreground: oklch(0.95 0.01 290);
+  --primary: oklch(0.6 0.12 290);
+  --primary-foreground: oklch(0.1 0 0);
+  --secondary: oklch(0.24 0.02 290);
+  --secondary-foreground: oklch(0.95 0.01 290);
+  --muted: oklch(0.22 0.015 290);
+  --muted-foreground: oklch(0.55 0.02 290);
+  --accent: oklch(0.26 0.025 290);
+  --accent-foreground: oklch(0.95 0.01 290);
+  --destructive: oklch(0.65 0.18 25);
+  --border: oklch(0.33 0.02 290);
+  --input: oklch(0.33 0.02 290);
+  --ring: oklch(0.6 0.02 290);
+  --sidebar: oklch(0.12 0.01 290);
+  --sidebar-foreground: oklch(0.95 0.01 290);
+  --sidebar-primary: oklch(0.6 0.12 290);
+  --sidebar-primary-foreground: oklch(0.1 0 0);
+  --sidebar-accent: oklch(0.26 0.025 290);
+  --sidebar-accent-foreground: oklch(0.95 0.01 290);
+  --sidebar-border: oklch(0.33 0.02 290);
+  --sidebar-ring: oklch(0.6 0.02 290);
+}
+
+/* Sand — warm beige/cream tones */
+[data-theme='sand'] {
+  --background: oklch(0.97 0.01 70);
+  --foreground: oklch(0.25 0.02 60);
+  --card: oklch(0.99 0.005 70);
+  --card-foreground: oklch(0.25 0.02 60);
+  --popover: oklch(0.99 0.005 70);
+  --popover-foreground: oklch(0.25 0.02 60);
+  --primary: oklch(0.5 0.1 55);
+  --primary-foreground: oklch(0.99 0 0);
+  --secondary: oklch(0.93 0.015 70);
+  --secondary-foreground: oklch(0.25 0.02 60);
+  --muted: oklch(0.92 0.012 70);
+  --muted-foreground: oklch(0.55 0.015 60);
+  --accent: oklch(0.92 0.015 70);
+  --accent-foreground: oklch(0.25 0.02 60);
+  --destructive: oklch(0.6 0.18 25);
+  --border: oklch(0.85 0.015 70);
+  --input: oklch(0.85 0.015 70);
+  --ring: oklch(0.5 0.1 55);
+  --sidebar: oklch(0.95 0.012 70);
+  --sidebar-foreground: oklch(0.25 0.02 60);
+  --sidebar-primary: oklch(0.5 0.1 55);
+  --sidebar-primary-foreground: oklch(0.99 0 0);
+  --sidebar-accent: oklch(0.92 0.015 70);
+  --sidebar-accent-foreground: oklch(0.25 0.02 60);
+  --sidebar-border: oklch(0.88 0.015 70);
+  --sidebar-ring: oklch(0.6 0.015 60);
+}
+[data-theme='sand'].dark {
+  --background: oklch(0.15 0.01 60);
+  --foreground: oklch(0.95 0.01 60);
+  --card: oklch(0.19 0.015 60);
+  --card-foreground: oklch(0.95 0.01 60);
+  --popover: oklch(0.19 0.015 60);
+  --popover-foreground: oklch(0.95 0.01 60);
+  --primary: oklch(0.6 0.1 55);
+  --primary-foreground: oklch(0.1 0 0);
+  --secondary: oklch(0.24 0.015 60);
+  --secondary-foreground: oklch(0.95 0.01 60);
+  --muted: oklch(0.22 0.012 60);
+  --muted-foreground: oklch(0.55 0.02 60);
+  --accent: oklch(0.26 0.02 60);
+  --accent-foreground: oklch(0.95 0.01 60);
+  --destructive: oklch(0.65 0.18 25);
+  --border: oklch(0.33 0.015 60);
+  --input: oklch(0.33 0.015 60);
+  --ring: oklch(0.6 0.02 55);
+  --sidebar: oklch(0.12 0.01 60);
+  --sidebar-foreground: oklch(0.95 0.01 60);
+  --sidebar-primary: oklch(0.6 0.1 55);
+  --sidebar-primary-foreground: oklch(0.1 0 0);
+  --sidebar-accent: oklch(0.26 0.02 60);
+  --sidebar-accent-foreground: oklch(0.95 0.01 60);
+  --sidebar-border: oklch(0.33 0.015 60);
+  --sidebar-ring: oklch(0.6 0.02 55);
+}
+
+/* Ocean — soft teal/cyan tones */
+[data-theme='ocean'] {
+  --background: oklch(0.97 0.01 195);
+  --foreground: oklch(0.22 0.02 195);
+  --card: oklch(0.99 0.005 195);
+  --card-foreground: oklch(0.22 0.02 195);
+  --popover: oklch(0.99 0.005 195);
+  --popover-foreground: oklch(0.22 0.02 195);
+  --primary: oklch(0.5 0.12 195);
+  --primary-foreground: oklch(0.99 0 0);
+  --secondary: oklch(0.93 0.015 195);
+  --secondary-foreground: oklch(0.22 0.02 195);
+  --muted: oklch(0.92 0.012 195);
+  --muted-foreground: oklch(0.55 0.02 195);
+  --accent: oklch(0.92 0.015 195);
+  --accent-foreground: oklch(0.22 0.02 195);
+  --destructive: oklch(0.6 0.18 25);
+  --border: oklch(0.85 0.015 195);
+  --input: oklch(0.85 0.015 195);
+  --ring: oklch(0.5 0.12 195);
+  --sidebar: oklch(0.95 0.012 195);
+  --sidebar-foreground: oklch(0.22 0.02 195);
+  --sidebar-primary: oklch(0.5 0.12 195);
+  --sidebar-primary-foreground: oklch(0.99 0 0);
+  --sidebar-accent: oklch(0.92 0.015 195);
+  --sidebar-accent-foreground: oklch(0.22 0.02 195);
+  --sidebar-border: oklch(0.88 0.015 195);
+  --sidebar-ring: oklch(0.6 0.015 195);
+}
+[data-theme='ocean'].dark {
+  --background: oklch(0.14 0.01 195);
+  --foreground: oklch(0.95 0.01 195);
+  --card: oklch(0.18 0.015 195);
+  --card-foreground: oklch(0.95 0.01 195);
+  --popover: oklch(0.18 0.015 195);
+  --popover-foreground: oklch(0.95 0.01 195);
+  --primary: oklch(0.6 0.1 195);
+  --primary-foreground: oklch(0.1 0 0);
+  --secondary: oklch(0.24 0.02 195);
+  --secondary-foreground: oklch(0.95 0.01 195);
+  --muted: oklch(0.22 0.015 195);
+  --muted-foreground: oklch(0.55 0.02 195);
+  --accent: oklch(0.26 0.02 195);
+  --accent-foreground: oklch(0.95 0.01 195);
+  --destructive: oklch(0.65 0.18 25);
+  --border: oklch(0.33 0.02 195);
+  --input: oklch(0.33 0.02 195);
+  --ring: oklch(0.6 0.02 195);
+  --sidebar: oklch(0.12 0.01 195);
+  --sidebar-foreground: oklch(0.95 0.01 195);
+  --sidebar-primary: oklch(0.6 0.1 195);
+  --sidebar-primary-foreground: oklch(0.1 0 0);
+  --sidebar-accent: oklch(0.26 0.02 195);
+  --sidebar-accent-foreground: oklch(0.95 0.01 195);
+  --sidebar-border: oklch(0.33 0.02 195);
+  --sidebar-ring: oklch(0.6 0.02 195);
+}
+
+/* Sunset — warm coral/peach tones */
+[data-theme='sunset'] {
+  --background: oklch(0.97 0.012 40);
+  --foreground: oklch(0.22 0.03 35);
+  --card: oklch(0.99 0.005 40);
+  --card-foreground: oklch(0.22 0.03 35);
+  --popover: oklch(0.99 0.005 40);
+  --popover-foreground: oklch(0.22 0.03 35);
+  --primary: oklch(0.55 0.15 30);
+  --primary-foreground: oklch(0.99 0 0);
+  --secondary: oklch(0.93 0.02 40);
+  --secondary-foreground: oklch(0.22 0.03 35);
+  --muted: oklch(0.92 0.015 40);
+  --muted-foreground: oklch(0.55 0.02 35);
+  --accent: oklch(0.92 0.02 40);
+  --accent-foreground: oklch(0.22 0.03 35);
+  --destructive: oklch(0.6 0.18 25);
+  --border: oklch(0.85 0.02 40);
+  --input: oklch(0.85 0.02 40);
+  --ring: oklch(0.55 0.15 30);
+  --sidebar: oklch(0.95 0.015 40);
+  --sidebar-foreground: oklch(0.22 0.03 35);
+  --sidebar-primary: oklch(0.55 0.15 30);
+  --sidebar-primary-foreground: oklch(0.99 0 0);
+  --sidebar-accent: oklch(0.92 0.02 40);
+  --sidebar-accent-foreground: oklch(0.22 0.03 35);
+  --sidebar-border: oklch(0.88 0.02 40);
+  --sidebar-ring: oklch(0.6 0.02 35);
+}
+[data-theme='sunset'].dark {
+  --background: oklch(0.15 0.012 35);
+  --foreground: oklch(0.95 0.01 35);
+  --card: oklch(0.19 0.015 35);
+  --card-foreground: oklch(0.95 0.01 35);
+  --popover: oklch(0.19 0.015 35);
+  --popover-foreground: oklch(0.95 0.01 35);
+  --primary: oklch(0.6 0.12 30);
+  --primary-foreground: oklch(0.1 0 0);
+  --secondary: oklch(0.24 0.02 35);
+  --secondary-foreground: oklch(0.95 0.01 35);
+  --muted: oklch(0.22 0.015 35);
+  --muted-foreground: oklch(0.55 0.02 35);
+  --accent: oklch(0.26 0.025 35);
+  --accent-foreground: oklch(0.95 0.01 35);
+  --destructive: oklch(0.65 0.18 25);
+  --border: oklch(0.33 0.02 35);
+  --input: oklch(0.33 0.02 35);
+  --ring: oklch(0.6 0.02 30);
+  --sidebar: oklch(0.12 0.01 35);
+  --sidebar-foreground: oklch(0.95 0.01 35);
+  --sidebar-primary: oklch(0.6 0.12 30);
+  --sidebar-primary-foreground: oklch(0.1 0 0);
+  --sidebar-accent: oklch(0.26 0.025 35);
+  --sidebar-accent-foreground: oklch(0.95 0.01 35);
+  --sidebar-border: oklch(0.33 0.02 35);
+  --sidebar-ring: oklch(0.6 0.02 30);
+}
+
 /* System font mode — override Inter with native OS fonts.
    Must be outside @layer base to win over next/font's generated class. */
 html.font-system {