From d9e6f21e2ede65a776e5fb698566913d67ee5abf Mon Sep 17 00:00:00 2001
From: Marco Allegretti <mightymarco4@gmail.com>
Date: Thu, 29 Jan 2026 16:31:32 +0100
Subject: [PATCH] ui: centralize design system styles

---
 .gitignore                                    |   3 +
 .../components/ui/DesignSystemStyles.astro    | 330 +++++++++++++++++
 frontend/src/layouts/Layout.astro             | 334 +-----------------
 frontend/src/layouts/PublicLayout.astro       |  95 +----
 4 files changed, 337 insertions(+), 425 deletions(-)
 create mode 100644 frontend/src/components/ui/DesignSystemStyles.astro

diff --git a/.gitignore b/.gitignore
index 03030e5..7102f95 100644
--- a/.gitignore
+++ b/.gitignore
@@ -39,6 +39,9 @@ Thumbs.db
 *.log
 npm-debug.log*
 
+# Local demo verification artifacts
+demo_cookie*.txt
+
 # Podman
 .podman/
 
diff --git a/frontend/src/components/ui/DesignSystemStyles.astro b/frontend/src/components/ui/DesignSystemStyles.astro
new file mode 100644
index 0000000..5b98500
--- /dev/null
+++ b/frontend/src/components/ui/DesignSystemStyles.astro
@@ -0,0 +1,330 @@
+<style is:global>
+  :root {
+    --color-bg: #09090b;
+    --color-bg-alt: #0f0f12;
+    --color-surface: #18181b;
+    --color-surface-hover: #27272a;
+    --color-border: #27272a;
+    --color-border-hover: #3f3f46;
+    --color-text: #fafafa;
+    --color-text-muted: #a1a1aa;
+    --color-text-inverse: #0f0f0f;
+    --color-primary: #818cf8;
+    --color-primary-hover: #6366f1;
+    --color-primary-muted: rgba(129, 140, 248, 0.12);
+    --color-secondary: #8b5cf6;
+    --color-secondary-hover: #7c3aed;
+    --color-info: #3b82f6;
+    --color-info-hover: #2563eb;
+    --color-info-muted: rgba(59, 130, 246, 0.15);
+    --color-neutral: #6b7280;
+    --color-neutral-hover: #4b5563;
+    --color-neutral-muted: rgba(107, 114, 128, 0.18);
+    --color-success: #22c55e;
+    --color-success-muted: rgba(34, 197, 94, 0.15);
+    --color-success-hover: #16a34a;
+    --color-warning: #f59e0b;
+    --color-warning-muted: rgba(245, 158, 11, 0.15);
+    --color-error: #ef4444;
+    --color-error-muted: rgba(239, 68, 68, 0.15);
+    --color-error-hover: #dc2626;
+    --color-link: #6366f1;
+    --color-link-visited: #8b5cf6;
+    --color-overlay: rgba(0, 0, 0, 0.8);
+    --color-field-bg: rgba(0, 0, 0, 0.25);
+    --color-on-primary: #ffffff;
+
+    --color-primary-bg: var(--color-primary-muted);
+
+    --bg-primary: var(--color-bg);
+    --bg-secondary: var(--color-surface);
+    --bg-hover: var(--color-surface-hover);
+    --border-color: var(--color-border);
+    --text-primary: var(--color-text);
+    --text-secondary: var(--color-text-muted);
+    --accent-color: var(--color-primary);
+
+    --radius-sm: 8px;
+    --radius-md: 12px;
+    --radius-lg: 16px;
+    --radius-xl: 24px;
+    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.08);
+    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 10px 20px rgba(0, 0, 0, 0.15);
+    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2), 0 20px 48px rgba(0, 0, 0, 0.15);
+    --motion-fast: 120ms;
+    --motion-normal: 180ms;
+    --easing-standard: cubic-bezier(0.2, 0, 0, 1);
+    --focus-ring: 0 0 0 3px var(--color-primary-muted);
+
+    --ui-container-max: 1200px;
+    --ui-page-pad-y: 2rem;
+    --ui-glass-bg: rgba(24, 24, 27, 0.65);
+    --ui-glass-border: rgba(255, 255, 255, 0.08);
+    --ui-soft-highlight: rgba(129, 140, 248, 0.16);
+  }
+
+  * {
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+  }
+
+  html {
+    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+    background: var(--color-bg);
+    color: var(--color-text);
+    line-height: 1.6;
+    font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
+    text-rendering: optimizeLegibility;
+    -webkit-font-smoothing: antialiased;
+    -moz-osx-font-smoothing: grayscale;
+    transition: background-color var(--motion-normal) var(--easing-standard), color var(--motion-normal) var(--easing-standard);
+  }
+
+  @media (prefers-reduced-motion: reduce) {
+    html {
+      transition: none;
+    }
+
+    *, *::before, *::after {
+      scroll-behavior: auto !important;
+      transition-duration: 0ms !important;
+      animation-duration: 0ms !important;
+      animation-iteration-count: 1 !important;
+    }
+  }
+
+  body {
+    min-height: 100vh;
+  }
+
+  ::selection {
+    background: var(--color-primary-muted);
+  }
+
+  a {
+    color: var(--color-primary);
+    text-decoration: none;
+  }
+
+  a:hover {
+    color: var(--color-primary-hover);
+  }
+
+  a:visited {
+    color: var(--color-link-visited);
+  }
+
+  :where(a, button, input, textarea, select):focus {
+    outline: none;
+  }
+
+  :where(a, button, input, textarea, select):focus-visible {
+    box-shadow: var(--focus-ring);
+    border-radius: var(--radius-sm);
+  }
+
+  :where(button, input, textarea, select) {
+    font: inherit;
+  }
+
+  :where(input, textarea, select) {
+    background: var(--color-field-bg);
+    color: var(--color-text);
+    border: 1px solid var(--color-border);
+    border-radius: var(--radius-sm);
+    padding: 0.75rem 0.875rem;
+    transition: border-color var(--motion-fast) var(--easing-standard), background-color var(--motion-fast) var(--easing-standard);
+  }
+
+  :where(input, textarea, select):hover {
+    border-color: var(--color-border-hover);
+  }
+
+  :where(input, textarea, select):focus-visible {
+    border-color: var(--color-primary);
+  }
+
+  :where(button) {
+    border: 1px solid transparent;
+    border-radius: var(--radius-sm);
+    cursor: pointer;
+    transition: transform var(--motion-fast) var(--easing-standard), background-color var(--motion-fast) var(--easing-standard), border-color var(--motion-fast) var(--easing-standard), box-shadow var(--motion-fast) var(--easing-standard);
+  }
+
+  :where(button):active {
+    transform: translateY(1px);
+  }
+
+  .ui-container {
+    max-width: var(--ui-container-max);
+    margin: 0 auto;
+    padding: 0 2rem;
+  }
+
+  .ui-page {
+    padding: var(--ui-page-pad-y) 0;
+  }
+
+  .ui-page-header {
+    display: flex;
+    align-items: flex-start;
+    justify-content: space-between;
+    gap: 1rem;
+    margin-bottom: 1.5rem;
+  }
+
+  .ui-page-title h1 {
+    font-size: 2rem;
+    font-weight: 700;
+    letter-spacing: -0.02em;
+    margin: 0;
+  }
+
+  .ui-subtitle {
+    color: var(--color-text-muted);
+    font-size: 0.9375rem;
+    margin-top: 0.25rem;
+  }
+
+  .ui-actions {
+    display: flex;
+    align-items: center;
+    justify-content: flex-end;
+    gap: 0.75rem;
+    flex-wrap: wrap;
+  }
+
+  .ui-card {
+    background: var(--color-surface);
+    border: 1px solid var(--color-border);
+    border-radius: var(--radius-lg);
+    box-shadow: var(--shadow-sm);
+  }
+
+  .ui-card-glass {
+    background: var(--ui-glass-bg);
+    border-color: var(--ui-glass-border);
+    backdrop-filter: blur(12px);
+    -webkit-backdrop-filter: blur(12px);
+  }
+
+  .ui-btn {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    gap: 0.5rem;
+    padding: 0.625rem 1rem;
+    border-radius: var(--radius-sm);
+    font-weight: 600;
+    font-size: 0.875rem;
+    line-height: 1;
+    white-space: nowrap;
+  }
+
+  .ui-btn-primary {
+    background: var(--color-primary);
+    color: var(--color-on-primary);
+  }
+
+  .ui-btn-primary:hover {
+    background: var(--color-primary-hover);
+    color: var(--color-on-primary);
+    transform: translateY(-1px);
+    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.24);
+  }
+
+  .ui-btn-secondary {
+    background: transparent;
+    border-color: var(--color-border);
+    color: var(--color-text);
+  }
+
+  .ui-btn-secondary:hover {
+    border-color: var(--color-border-hover);
+    background: rgba(255, 255, 255, 0.06);
+    color: var(--color-text);
+  }
+
+  .ui-btn-success {
+    background: var(--color-success);
+    color: var(--color-on-primary);
+  }
+
+  .ui-btn-success:hover {
+    background: var(--color-success-hover);
+    color: var(--color-on-primary);
+    transform: translateY(-1px);
+    box-shadow: 0 10px 30px rgba(34, 197, 94, 0.18);
+  }
+
+  .ui-btn-danger {
+    background: var(--color-error);
+    color: var(--color-on-primary);
+  }
+
+  .ui-btn-danger:hover {
+    background: var(--color-error-hover);
+    color: var(--color-on-primary);
+    transform: translateY(-1px);
+    box-shadow: 0 10px 30px rgba(239, 68, 68, 0.18);
+  }
+
+  .ui-btn-info {
+    background: var(--color-info);
+    color: var(--color-on-primary);
+  }
+
+  .ui-btn-info:hover {
+    background: var(--color-info-hover);
+    color: var(--color-on-primary);
+    transform: translateY(-1px);
+    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.18);
+  }
+
+  :where(input.ui-input, select.ui-select) {
+    width: 100%;
+    border-radius: var(--radius-md);
+  }
+
+  .ui-kpis {
+    display: flex;
+    gap: 0.75rem;
+    flex-wrap: wrap;
+  }
+
+  .ui-kpi {
+    padding: 0.75rem 0.875rem;
+    border-radius: var(--radius-md);
+    border: 1px solid var(--color-border);
+    background: rgba(0, 0, 0, 0.18);
+    min-width: 140px;
+  }
+
+  .ui-kpi-value {
+    font-size: 1.25rem;
+    font-weight: 700;
+    letter-spacing: -0.01em;
+  }
+
+  .ui-kpi-label {
+    margin-top: 0.125rem;
+    color: var(--color-text-muted);
+    font-size: 0.8125rem;
+  }
+
+  @media (max-width: 768px) {
+    .ui-container {
+      padding: 0 1rem;
+    }
+
+    .ui-page-header {
+      flex-direction: column;
+      align-items: stretch;
+    }
+
+    .ui-actions {
+      justify-content: flex-start;
+    }
+  }
+</style>
diff --git a/frontend/src/layouts/Layout.astro b/frontend/src/layouts/Layout.astro
index 0b3f4b3..c2419c5 100644
--- a/frontend/src/layouts/Layout.astro
+++ b/frontend/src/layouts/Layout.astro
@@ -6,6 +6,7 @@ interface Props {
 import { DEFAULT_THEME, themes as themeRegistry } from '../lib/themes';
 import { API_BASE as apiBase } from '../lib/api';
 import VotingIcons from '../components/icons/VotingIcons.astro';
+import DesignSystemStyles from '../components/ui/DesignSystemStyles.astro';
 
 function isEnabled(v: string | undefined): boolean {
   if (!v) return false;
@@ -179,338 +180,7 @@ const publicDemoSite = isEnabled((globalThis as any).process?.env?.PUBLIC_DEMO_S
   </body>
 </html>
 
-<style is:global>
-  :root {
-    --color-bg: #09090b;
-    --color-bg-alt: #0f0f12;
-    --color-surface: #18181b;
-    --color-surface-hover: #27272a;
-    --color-border: #27272a;
-    --color-border-hover: #3f3f46;
-    --color-text: #fafafa;
-    --color-text-muted: #a1a1aa;
-    --color-text-inverse: #0f0f0f;
-    --color-primary: #818cf8;
-    --color-primary-hover: #6366f1;
-    --color-primary-muted: rgba(129, 140, 248, 0.12);
-    --color-secondary: #8b5cf6;
-    --color-secondary-hover: #7c3aed;
-    --color-info: #3b82f6;
-    --color-info-hover: #2563eb;
-    --color-info-muted: rgba(59, 130, 246, 0.15);
-    --color-neutral: #6b7280;
-    --color-neutral-hover: #4b5563;
-    --color-neutral-muted: rgba(107, 114, 128, 0.18);
-    --color-success: #22c55e;
-    --color-success-muted: rgba(34, 197, 94, 0.15);
-    --color-success-hover: #16a34a;
-    --color-warning: #f59e0b;
-    --color-warning-muted: rgba(245, 158, 11, 0.15);
-    --color-error: #ef4444;
-    --color-error-muted: rgba(239, 68, 68, 0.15);
-    --color-error-hover: #dc2626;
-    --color-link: #6366f1;
-    --color-link-visited: #8b5cf6;
-    --color-overlay: rgba(0, 0, 0, 0.8);
-    --color-field-bg: rgba(0, 0, 0, 0.25);
-    --color-on-primary: #ffffff;
-
-    --color-primary-bg: var(--color-primary-muted);
-
-    --bg-primary: var(--color-bg);
-    --bg-secondary: var(--color-surface);
-    --bg-hover: var(--color-surface-hover);
-    --border-color: var(--color-border);
-    --text-primary: var(--color-text);
-    --text-secondary: var(--color-text-muted);
-    --accent-color: var(--color-primary);
-
-    --radius-sm: 8px;
-    --radius-md: 12px;
-    --radius-lg: 16px;
-    --radius-xl: 24px;
-    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.08);
-    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 10px 20px rgba(0, 0, 0, 0.15);
-    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2), 0 20px 48px rgba(0, 0, 0, 0.15);
-    --motion-fast: 120ms;
-    --motion-normal: 180ms;
-    --easing-standard: cubic-bezier(0.2, 0, 0, 1);
-    --focus-ring: 0 0 0 3px var(--color-primary-muted);
-  }
-
-  * {
-    margin: 0;
-    padding: 0;
-    box-sizing: border-box;
-  }
-
-  html {
-    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
-    background: var(--color-bg);
-    color: var(--color-text);
-    line-height: 1.6;
-    font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
-    text-rendering: optimizeLegibility;
-    -webkit-font-smoothing: antialiased;
-    -moz-osx-font-smoothing: grayscale;
-    transition: background-color var(--motion-normal) var(--easing-standard), color var(--motion-normal) var(--easing-standard);
-  }
-
-  @media (prefers-reduced-motion: reduce) {
-    html {
-      transition: none;
-    }
-
-    *, *::before, *::after {
-      scroll-behavior: auto !important;
-      transition-duration: 0ms !important;
-      animation-duration: 0ms !important;
-      animation-iteration-count: 1 !important;
-    }
-  }
-
-  body {
-    min-height: 100vh;
-  }
-
-  ::selection {
-    background: var(--color-primary-muted);
-  }
-
-  a {
-    color: var(--color-primary);
-    text-decoration: none;
-  }
-
-  a:hover {
-    color: var(--color-primary-hover);
-  }
-
-  a:visited {
-    color: var(--color-link-visited);
-  }
-
-  :where(a, button, input, textarea, select):focus {
-    outline: none;
-  }
-
-  :where(a, button, input, textarea, select):focus-visible {
-    box-shadow: var(--focus-ring);
-    border-radius: var(--radius-sm);
-  }
-
-  :where(button, input, textarea, select) {
-    font: inherit;
-  }
-
-  :where(input, textarea, select) {
-    background: var(--color-field-bg);
-    color: var(--color-text);
-    border: 1px solid var(--color-border);
-    border-radius: var(--radius-sm);
-    padding: 0.75rem 0.875rem;
-    transition: border-color var(--motion-fast) var(--easing-standard), background-color var(--motion-fast) var(--easing-standard);
-  }
-
-  :where(input, textarea, select):hover {
-    border-color: var(--color-border-hover);
-  }
-
-  :where(input, textarea, select):focus-visible {
-    border-color: var(--color-primary);
-  }
-
-  :where(button) {
-    border: 1px solid transparent;
-    border-radius: var(--radius-sm);
-    cursor: pointer;
-    transition: transform var(--motion-fast) var(--easing-standard), background-color var(--motion-fast) var(--easing-standard), border-color var(--motion-fast) var(--easing-standard), box-shadow var(--motion-fast) var(--easing-standard);
-  }
-
-  :where(button):active {
-    transform: translateY(1px);
-  }
-
-  :root {
-    --ui-container-max: 1200px;
-    --ui-page-pad-y: 2rem;
-    --ui-glass-bg: rgba(24, 24, 27, 0.65);
-    --ui-glass-border: rgba(255, 255, 255, 0.08);
-    --ui-soft-highlight: rgba(129, 140, 248, 0.16);
-  }
-
-  .ui-container {
-    max-width: var(--ui-container-max);
-    margin: 0 auto;
-    padding: 0 2rem;
-  }
-
-  .ui-page {
-    padding: var(--ui-page-pad-y) 0;
-  }
-
-  .ui-page-header {
-    display: flex;
-    align-items: flex-start;
-    justify-content: space-between;
-    gap: 1rem;
-    margin-bottom: 1.5rem;
-  }
-
-  .ui-page-title h1 {
-    font-size: 2rem;
-    font-weight: 700;
-    letter-spacing: -0.02em;
-    margin: 0;
-  }
-
-  .ui-subtitle {
-    color: var(--color-text-muted);
-    font-size: 0.9375rem;
-    margin-top: 0.25rem;
-  }
-
-  .ui-actions {
-    display: flex;
-    align-items: center;
-    justify-content: flex-end;
-    gap: 0.75rem;
-    flex-wrap: wrap;
-  }
-
-  .ui-card {
-    background: var(--color-surface);
-    border: 1px solid var(--color-border);
-    border-radius: var(--radius-lg);
-    box-shadow: var(--shadow-sm);
-  }
-
-  .ui-card-glass {
-    background: var(--ui-glass-bg);
-    border-color: var(--ui-glass-border);
-    backdrop-filter: blur(12px);
-    -webkit-backdrop-filter: blur(12px);
-  }
-
-  .ui-btn {
-    display: inline-flex;
-    align-items: center;
-    justify-content: center;
-    gap: 0.5rem;
-    padding: 0.625rem 1rem;
-    border-radius: var(--radius-sm);
-    font-weight: 600;
-    font-size: 0.875rem;
-    line-height: 1;
-    white-space: nowrap;
-  }
-
-  .ui-btn-primary {
-    background: var(--color-primary);
-    color: var(--color-on-primary);
-  }
-
-  .ui-btn-primary:hover {
-    background: var(--color-primary-hover);
-    color: var(--color-on-primary);
-    transform: translateY(-1px);
-    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.24);
-  }
-
-  .ui-btn-secondary {
-    background: transparent;
-    border-color: var(--color-border);
-    color: var(--color-text);
-  }
-
-  .ui-btn-secondary:hover {
-    border-color: var(--color-border-hover);
-    background: rgba(255, 255, 255, 0.06);
-    color: var(--color-text);
-  }
-
-  .ui-btn-success {
-    background: var(--color-success);
-    color: var(--color-on-primary);
-  }
-
-  .ui-btn-success:hover {
-    background: var(--color-success-hover);
-    color: var(--color-on-primary);
-    transform: translateY(-1px);
-    box-shadow: 0 10px 30px rgba(34, 197, 94, 0.18);
-  }
-
-  .ui-btn-danger {
-    background: var(--color-error);
-    color: var(--color-on-primary);
-  }
-
-  .ui-btn-danger:hover {
-    background: var(--color-error-hover);
-    color: var(--color-on-primary);
-    transform: translateY(-1px);
-    box-shadow: 0 10px 30px rgba(239, 68, 68, 0.18);
-  }
-
-  .ui-btn-info {
-    background: var(--color-info);
-    color: var(--color-on-primary);
-  }
-
-  .ui-btn-info:hover {
-    background: var(--color-info-hover);
-    color: var(--color-on-primary);
-    transform: translateY(-1px);
-    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.18);
-  }
-
-  :where(input.ui-input, select.ui-select) {
-    width: 100%;
-    border-radius: var(--radius-md);
-  }
-
-  .ui-kpis {
-    display: flex;
-    gap: 0.75rem;
-    flex-wrap: wrap;
-  }
-
-  .ui-kpi {
-    padding: 0.75rem 0.875rem;
-    border-radius: var(--radius-md);
-    border: 1px solid var(--color-border);
-    background: rgba(0, 0, 0, 0.18);
-    min-width: 140px;
-  }
-
-  .ui-kpi-value {
-    font-size: 1.25rem;
-    font-weight: 700;
-    letter-spacing: -0.01em;
-  }
-
-  .ui-kpi-label {
-    margin-top: 0.125rem;
-    color: var(--color-text-muted);
-    font-size: 0.8125rem;
-  }
-
-  @media (max-width: 768px) {
-    .ui-container {
-      padding: 0 1rem;
-    }
-
-    .ui-page-header {
-      flex-direction: column;
-      align-items: stretch;
-    }
-
-    .ui-actions {
-      justify-content: flex-start;
-    }
-  }
-</style>
+<DesignSystemStyles />
 
 <style>
   .app {
diff --git a/frontend/src/layouts/PublicLayout.astro b/frontend/src/layouts/PublicLayout.astro
index 02cc8c5..80b4e53 100644
--- a/frontend/src/layouts/PublicLayout.astro
+++ b/frontend/src/layouts/PublicLayout.astro
@@ -5,6 +5,7 @@ interface Props {
 }
 
 import { DEFAULT_THEME, themes as themeRegistry } from '../lib/themes';
+import DesignSystemStyles from '../components/ui/DesignSystemStyles.astro';
 
 function isEnabled(v: string | undefined): boolean {
   if (!v) return false;
@@ -138,99 +139,7 @@ const defaultTheme = DEFAULT_THEME;
   </body>
 </html>
 
-<style is:global>
-  :root {
-    --color-bg: #09090b;
-    --color-bg-alt: #0f0f12;
-    --color-surface: #18181b;
-    --color-surface-hover: #27272a;
-    --color-border: #27272a;
-    --color-border-hover: #3f3f46;
-    --color-text: #fafafa;
-    --color-text-muted: #a1a1aa;
-    --color-text-inverse: #09090b;
-    --color-primary: #818cf8;
-    --color-primary-hover: #6366f1;
-    --color-primary-muted: rgba(129, 140, 248, 0.12);
-    --color-secondary: #8b5cf6;
-    --color-secondary-hover: #7c3aed;
-    --color-info: #3b82f6;
-    --color-info-hover: #2563eb;
-    --color-info-muted: rgba(59, 130, 246, 0.15);
-    --color-neutral: #6b7280;
-    --color-neutral-hover: #4b5563;
-    --color-neutral-muted: rgba(107, 114, 128, 0.18);
-    --color-success: #22c55e;
-    --color-success-muted: rgba(34, 197, 94, 0.15);
-    --color-success-hover: #16a34a;
-    --color-warning: #f59e0b;
-    --color-warning-muted: rgba(245, 158, 11, 0.15);
-    --color-error: #ef4444;
-    --color-error-muted: rgba(239, 68, 68, 0.15);
-    --color-error-hover: #dc2626;
-    --color-link: #6366f1;
-    --color-link-visited: #8b5cf6;
-    --color-overlay: rgba(0, 0, 0, 0.8);
-    --color-field-bg: rgba(0, 0, 0, 0.25);
-    --color-on-primary: #ffffff;
-
-    --radius-sm: 8px;
-    --radius-md: 12px;
-    --radius-lg: 16px;
-    --radius-xl: 24px;
-    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.08);
-    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 10px 20px rgba(0, 0, 0, 0.15);
-    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2), 0 20px 48px rgba(0, 0, 0, 0.15);
-    --motion-fast: 120ms;
-    --motion-normal: 180ms;
-    --easing-standard: cubic-bezier(0.2, 0, 0, 1);
-    --focus-ring: 0 0 0 3px var(--color-primary-muted);
-  }
-
-  * {
-    margin: 0;
-    padding: 0;
-    box-sizing: border-box;
-  }
-
-  html {
-    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
-    background: var(--color-bg);
-    color: var(--color-text);
-    line-height: 1.6;
-    font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
-    text-rendering: optimizeLegibility;
-    -webkit-font-smoothing: antialiased;
-    -moz-osx-font-smoothing: grayscale;
-  }
-
-  body {
-    min-height: 100vh;
-  }
-
-  a {
-    color: var(--color-primary);
-    text-decoration: none;
-    transition: color var(--motion-fast) var(--easing-standard);
-  }
-
-  a:hover {
-    color: var(--color-primary-hover);
-  }
-
-  ::selection {
-    background: var(--color-primary-muted);
-  }
-
-  :where(a, button, input, textarea, select):focus {
-    outline: none;
-  }
-
-  :where(a, button, input, textarea, select):focus-visible {
-    box-shadow: var(--focus-ring);
-    border-radius: var(--radius-sm);
-  }
-</style>
+<DesignSystemStyles />
 
 <style>
   .public-app {