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+# Windows Forced-Colors Mode Verification Checklist
+
+This checklist helps verify that SO4's interface remains operable when Windows High Contrast Mode is active. Forced-colors mode replaces custom colors with system colors, which can break gradients, translucent elements, and custom focus treatments.
+
+## Setup
+
+### Enable Windows High Contrast Mode
+
+**Windows 10/11:**
+1. Press `Left Alt + Left Shift + Print Screen`
+2. Or: Settings → Accessibility → High Contrast → Turn on High Contrast
+
+**Browser Testing:**
+- Test in Edge or Chrome (best support for forced-colors)
+- Firefox also supports it but with some differences
+
+### Emulate in DevTools
+
+**Chrome/Edge:**
+1. Open DevTools (F12)
+2. Press `Ctrl+Shift+P` → "Rendering"
+3. Scroll to "Emulate CSS media feature forced-colors"
+4. Select "active"
+
+## Core Components Checklist
+
+### ✅ Buttons
+
+- [ ] Button text is readable against button background
+- [ ] Button borders are visible
+- [ ] Hover state shows clear visual change (highlight)
+- [ ] Focus indicator is clearly visible (2px outline)
+- [ ] Disabled buttons show grayed text
+- [ ] Icon buttons remain identifiable
+- [ ] All button variants (primary, outline, ghost, destructive) work
+
+**Test locations:**
+- `/` - Hero CTA buttons
+- `/trade` - Place order, Cancel buttons
+- All forms and dialogs
+
+### ✅ Links
+
+- [ ] Links use system LinkText color
+- [ ] Links are underlined
+- [ ] Hover/focus shows highlight background
+- [ ] Visited links remain distinguishable (if applicable)
+
+**Test locations:**
+- Navigation menu
+- Footer links
+- Inline text links
+
+### ✅ Form Inputs
+
+- [ ] Input fields have visible borders
+- [ ] Input text is readable
+- [ ] Placeholder text is visible (GrayText)
+- [ ] Focus outline is clearly visible
+- [ ] Invalid state shows doubled border
+- [ ] Disabled inputs show grayed text
+- [ ] Labels are associated and readable
+
+**Test locations:**
+- `/trade` - Order form inputs
+- `/pools` - Liquidity form
+- Search inputs
+
+### ✅ Checkboxes and Radio Buttons
+
+- [ ] Unchecked boxes have visible borders
+- [ ] Checked boxes show system checkmark
+- [ ] Radio buttons follow same pattern
+- [ ] Labels are readable and associated
+- [ ] Disabled state shows grayed
+
+**Test locations:**
+- Settings panels
+- Filter controls
+- Terms acceptance checkboxes
+
+### ✅ Selects and Dropdowns
+
+- [ ] Dropdown trigger has visible border
+- [ ] Dropdown arrow/icon is visible
+- [ ] Dropdown menu has visible border
+- [ ] Selected option is highlighted
+- [ ] Hover state is distinguishable
+- [ ] Disabled state shows grayed
+
+**Test locations:**
+- Network selector
+- Token pair selects
+- Any combo boxes
+
+### ✅ Tabs
+
+- [ ] All tabs have visible borders or separators
+- [ ] Active tab is clearly distinguished (underline or highlight)
+- [ ] Inactive tabs remain readable
+- [ ] Hover state shows visual change
+- [ ] Focus indicator is visible
+
+**Test locations:**
+- `/trade` - Order tabs (Limit, Market)
+- Settings tabs (if applicable)
+
+### ✅ Dialogs and Modals
+
+- [ ] Dialog has visible border
+- [ ] Dialog content is readable
+- [ ] Close button is visible and operable
+- [ ] Backdrop (if visible) does not obscure dialog
+- [ ] Dialog title stands out
+
+**Test locations:**
+- Connect wallet modal
+- Confirmation dialogs
+- Settings dialogs
+
+### ✅ Alerts and Notifications
+
+- [ ] Alert container has visible border
+- [ ] Alert text is readable
+- [ ] Alert icon is visible (uses currentColor)
+- [ ] Severity is distinguishable by border/structure, not just color
+- [ ] Dismiss button (if present) is visible
+
+**Test locations:**
+- Error messages after failed transactions
+- Success toasts
+- Warning banners
+
+### ✅ Menus
+
+- [ ] Menu container has visible border
+- [ ] Menu items are readable
+- [ ] Hover/focus highlights menu item
+- [ ] Selected menu item (if applicable) is distinguished
+- [ ] Separators between menu sections are visible
+- [ ] Disabled menu items show grayed text
+
+**Test locations:**
+- User dropdown menu
+- Context menus
+- Navigation dropdown (if applicable)
+
+### ✅ Tables and Data Grids
+
+- [ ] Table borders are visible
+- [ ] Header row is distinguishable
+- [ ] Cell borders or separators are visible
+- [ ] Row hover shows highlight
+- [ ] Selected row is distinguished
+- [ ] Sortable column headers show affordance
+
+**Test locations:**
+- `/pools` - Liquidity table
+- Order history tables
+- Position tables
+
+### ✅ Icons and SVGs
+
+- [ ] All icons remain visible (use currentColor fill/stroke)
+- [ ] Status icons are distinguishable by shape, not just color
+- [ ] Icon buttons maintain icon visibility
+- [ ] Loading spinners remain visible
+
+**Test locations:**
+- Navigation icons
+- Status indicators (success, error, pending)
+- Social media icons
+
+### ✅ Focus Indicators
+
+- [ ] All interactive elements show focus outline
+- [ ] Focus outline uses system Highlight color
+- [ ] Focus outline has 2px width minimum
+- [ ] Focus outline does not disappear against any background
+- [ ] Tab order makes sense
+
+**Test:**
+- Tab through every page
+- Verify focus is always visible
+
+### ✅ Trading-Specific States
+
+- [ ] Long/Short/Liquidation states remain distinguishable
+- [ ] Price up/down indicators use shape or text, not just color
+- [ ] Order status (pending, filled, cancelled) is clear
+- [ ] Chart elements remain visible (if forced-colors affects charts, consider canvas-based alternative)
+
+**Test locations:**
+- `/trade` - Order book, recent trades
+- Price change indicators
+- Position PnL
+
+### ✅ Separators and Dividers
+
+- [ ] Horizontal rules (`<hr>`) are visible
+- [ ] Section dividers are visible
+- [ ] Card borders are visible
+
+**Test locations:**
+- Between major sections
+- Within complex forms
+- Card components
+
+## Additional Checks
+
+### No Reliance on Background Images
+
+- [ ] No critical information is conveyed via background-image
+- [ ] Decorative gradients do not break layout
+- [ ] CSS gradients used for borders have solid fallbacks
+
+### System Colors Used Correctly
+
+- [ ] No hardcoded colors in forced-colors overrides
+- [ ] Use ButtonText, CanvasText, LinkText, etc. instead of #000 or #fff
+- [ ] `forced-color-adjust: none` is only used where necessary (hover, focus states)
+
+### Documentation
+
+- [ ] All forced-colors overrides are documented in `globals.css`
+- [ ] This checklist is up to date
+- [ ] Team is aware of forced-colors testing requirement
+
+## Testing Workflow
+
+1. Enable forced-colors mode (see Setup above)
+2. Visit each major page: `/`, `/trade`, `/pools`, `/earn`, `/referrals`, `/faucet`
+3. Test all interactive elements on each page
+4. Use keyboard navigation (Tab, Enter, Space, Arrows)
+5. Check both light and dark forced-colors themes if your OS offers them
+6. Document any issues found
+7. Re-test after fixes
+
+## Known Limitations
+
+- **Charts:** Canvas-based charts (e.g., TradingView) may not fully support forced-colors. Ensure fallback controls remain operable.
+- **Third-party widgets:** Wallet connectors and external embeds may not support forced-colors. Document these as known limitations.
+- **Browser differences:** Edge has the best support. Firefox and Chrome may differ slightly.
+
+## Resources
+
+- [CSS Color Adjustment Module](https://drafts.csswg.org/css-color-adjust-1/#forced)
+- [Windows High Contrast Mode](https://docs.microsoft.com/en-us/fluent-ui/web-components/design-system/high-contrast)
+- [MDN: forced-colors](https://developer.mozilla.org/en-US/docs/Web/CSS/@media/forced-colors)
+
+## Issue Reporting
+
+When reporting forced-colors issues, include:
+- OS and version (e.g., Windows 11 22H2)
+- Browser and version
+- High contrast theme in use (e.g., "High Contrast Black")
+- Screenshot showing the problem
+- Steps to reproduce
diff --git a/packages/ui/src/styles/globals.css b/packages/ui/src/styles/globals.css
index 1411ad0..14cdfff 100644
--- a/packages/ui/src/styles/globals.css
+++ b/packages/ui/src/styles/globals.css
@@ -348,4 +348,216 @@
   line-height: 1.3;
   font-weight: 500;
   font-variant-numeric: tabular-nums slashed-zero;
-}
\ No newline at end of file
+}
+
+/*
+ * Windows forced-colors mode support (DS-067)
+ *
+ * When Windows High Contrast Mode is active, CSS gradients, translucent
+ * borders, and custom colors are replaced with system colors. These overrides
+ * ensure core primitives remain operable and distinguishable.
+ *
+ * System color keywords:
+ * - ButtonText, ButtonFace, GrayText, Highlight, HighlightText
+ * - LinkText, CanvasText, Canvas, Field, FieldText
+ * - Mark, MarkText
+ *
+ * Reference: https://drafts.csswg.org/css-color-adjust-1/#forced
+ */
+@media (forced-colors: active) {
+  /* Base text and backgrounds */
+  * {
+    background-color: Canvas !important;
+    color: CanvasText !important;
+    border-color: CanvasText !important;
+  }
+
+  /* Buttons */
+  button,
+  [role="button"],
+  [data-slot="button"] {
+    background-color: ButtonFace !important;
+    color: ButtonText !important;
+    border: 1px solid ButtonText !important;
+  }
+
+  button:hover,
+  [role="button"]:hover,
+  button:focus-visible,
+  [role="button"]:focus-visible {
+    forced-color-adjust: none;
+    background-color: Highlight !important;
+    color: HighlightText !important;
+    outline: 2px solid Highlight !important;
+    outline-offset: 2px;
+  }
+
+  button:disabled,
+  [role="button"]:disabled,
+  button[aria-disabled="true"],
+  [role="button"][aria-disabled="true"] {
+    color: GrayText !important;
+    border-color: GrayText !important;
+  }
+
+  /* Links */
+  a {
+    color: LinkText !important;
+    text-decoration: underline;
+  }
+
+  a:hover,
+  a:focus-visible {
+    forced-color-adjust: none;
+    background-color: Highlight !important;
+    color: HighlightText !important;
+    outline: 2px solid Highlight !important;
+  }
+
+  /* Form controls */
+  input,
+  textarea,
+  select,
+  [data-slot="input"],
+  [data-slot="textarea"],
+  [data-slot="select"] {
+    background-color: Field !important;
+    color: FieldText !important;
+    border: 1px solid FieldText !important;
+  }
+
+  input:focus,
+  textarea:focus,
+  select:focus {
+    forced-color-adjust: none;
+    outline: 2px solid Highlight !important;
+    outline-offset: 0;
+  }
+
+  input:disabled,
+  textarea:disabled,
+  select:disabled {
+    color: GrayText !important;
+    border-color: GrayText !important;
+  }
+
+  input[aria-invalid="true"],
+  textarea[aria-invalid="true"],
+  [data-slot="input"][aria-invalid="true"] {
+    border: 2px solid CanvasText !important;
+    outline: 1px solid CanvasText !important;
+    outline-offset: -3px;
+  }
+
+  /* Checkboxes and radios */
+  input[type="checkbox"],
+  input[type="radio"],
+  [role="checkbox"],
+  [role="radio"] {
+    forced-color-adjust: none;
+    appearance: auto;
+    background-color: Field !important;
+    border: 1px solid FieldText !important;
+  }
+
+  input[type="checkbox"]:checked,
+  input[type="radio"]:checked,
+  [role="checkbox"][aria-checked="true"],
+  [role="radio"][aria-checked="true"] {
+    forced-color-adjust: none;
+    background-color: Highlight !important;
+    border-color: Highlight !important;
+  }
+
+  /* Selected and highlighted states */
+  [aria-selected="true"],
+  [data-selected="true"],
+  [aria-current]:not([aria-current="false"]) {
+    forced-color-adjust: none;
+    background-color: Highlight !important;
+    color: HighlightText !important;
+    border-color: Highlight !important;
+  }
+
+  /* Tabs */
+  [role="tab"][aria-selected="true"] {
+    forced-color-adjust: none;
+    background-color: Canvas !important;
+    color: CanvasText !important;
+    border-bottom: 3px solid CanvasText !important;
+  }
+
+  /* Dialogs and overlays */
+  [role="dialog"],
+  [role="alertdialog"],
+  [data-slot="dialog"],
+  [data-slot="sheet"] {
+    background-color: Canvas !important;
+    border: 2px solid CanvasText !important;
+  }
+
+  /* Alerts */
+  [role="alert"],
+  [role="status"],
+  [data-slot="alert"] {
+    border: 2px solid CanvasText !important;
+  }
+
+  /* Menus */
+  [role="menu"],
+  [role="menubar"],
+  [role="listbox"] {
+    background-color: Canvas !important;
+    border: 1px solid CanvasText !important;
+  }
+
+  [role="menuitem"],
+  [role="option"] {
+    color: CanvasText !important;
+  }
+
+  [role="menuitem"]:hover,
+  [role="menuitem"]:focus,
+  [role="option"]:hover,
+  [role="option"]:focus,
+  [role="menuitem"][data-highlighted],
+  [role="option"][data-highlighted] {
+    forced-color-adjust: none;
+    background-color: Highlight !important;
+    color: HighlightText !important;
+  }
+
+  /* Focus indicators - always visible */
+  *:focus-visible {
+    forced-color-adjust: none;
+    outline: 2px solid Highlight !important;
+    outline-offset: 2px;
+  }
+
+  /* Icons and SVGs */
+  svg {
+    forced-color-adjust: auto;
+    fill: currentColor;
+    stroke: currentColor;
+  }
+
+  /* Ensure separators are visible */
+  hr,
+  [role="separator"] {
+    border-color: CanvasText !important;
+    background-color: CanvasText !important;
+  }
+
+  /* Remove background images and gradients */
+  * {
+    background-image: none !important;
+  }
+
+  /* Ensure tooltips are visible */
+  [role="tooltip"] {
+    forced-color-adjust: none;
+    background-color: Canvas !important;
+    color: CanvasText !important;
+    border: 1px solid CanvasText !important;
+  }
+}