diff --git a/global/src/styles/global.css b/global/src/styles/global.css
new file mode 100644
index 0000000..9b4455c
--- /dev/null
+++ b/global/src/styles/global.css
@@ -0,0 +1,323 @@
+/* ── Local fonts (no CDN) ─────────────────────────────────────────────────── */
+@font-face {
+  font-family: 'Inter';
+  src: url('/fonts/Inter-Regular.woff2') format('woff2');
+  font-weight: 400;
+  font-style: normal;
+  font-display: swap;
+}
+@font-face {
+  font-family: 'Inter';
+  src: url('/fonts/Inter-Medium.woff2') format('woff2');
+  font-weight: 500;
+  font-style: normal;
+  font-display: swap;
+}
+@font-face {
+  font-family: 'Inter';
+  src: url('/fonts/Inter-SemiBold.woff2') format('woff2');
+  font-weight: 600;
+  font-style: normal;
+  font-display: swap;
+}
+@font-face {
+  font-family: 'Inter';
+  src: url('/fonts/Inter-Bold.woff2') format('woff2');
+  font-weight: 700;
+  font-style: normal;
+  font-display: swap;
+}
+
+/* ── Reset + base ─────────────────────────────────────────────────────────── */
+*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
+html {
+  scroll-behavior: smooth;
+  overflow-x: hidden;
+  max-width: 100vw;
+}
+body {
+  font-family: 'Inter', system-ui, sans-serif;
+  background: #FAF7F0;
+  color: #263238;
+  direction: ltr;
+  -webkit-font-smoothing: antialiased;
+  min-height: 100vh;
+  overflow-x: hidden;
+  max-width: 100vw;
+  word-wrap: break-word;
+  overflow-wrap: break-word;
+}
+#root {
+  min-height: 100vh;
+  overflow-x: hidden;
+  max-width: 100vw;
+}
+button, input, select, textarea { font-family: 'Inter', system-ui, sans-serif; }
+a { color: inherit; text-decoration: none; }
+img {
+  max-width: 100%;
+  height: auto;
+}
+::-webkit-scrollbar { width: 6px; height: 6px; }
+::-webkit-scrollbar-track { background: #FAF7F0; }
+::-webkit-scrollbar-thumb { background: #E4DDD2; border-radius: 3px; }
+::-webkit-scrollbar-thumb:hover { background: #5F6B6D; }
+
+/* ── Animation keyframes (shared) ─────────────────────────────────────────── */
+@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
+@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
+@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
+@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
+@keyframes float-y { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
+@keyframes goldShimmer {
+  0%   { background-position: -200% 0; }
+  100% { background-position: 200% 0; }
+}
+@keyframes pulseRing {
+  0%   { box-shadow: 0 0 0 0 rgba(15,107,115,0.35); }
+  70%  { box-shadow: 0 0 0 14px rgba(15,107,115,0);  }
+  100% { box-shadow: 0 0 0 0 rgba(15,107,115,0);     }
+}
+@keyframes heroReveal {
+  from { opacity: 0; filter: blur(6px); transform: translateY(18px); }
+  to   { opacity: 1; filter: blur(0);  transform: translateY(0); }
+}
+@keyframes pulse {
+  0%, 100% { box-shadow: 0 0 0 3px #D49A2A30; }
+  50% { box-shadow: 0 0 0 6px #D49A2A15; }
+}
+
+/* ── Utility classes ──────────────────────────────────────────────────────── */
+.gold-shimmer {
+  background: linear-gradient(90deg, #A8761B 0%, #D49A2A 30%, #F4C36A 50%, #D49A2A 70%, #A8761B 100%);
+  background-size: 200% auto;
+  -webkit-background-clip: text;
+  background-clip: text;
+  -webkit-text-fill-color: transparent;
+  animation: goldShimmer 5s linear infinite;
+}
+.hero-tilt { transition: transform 0.4s cubic-bezier(.2,.8,.2,1); will-change: transform; }
+.lift-on-hover { transition: transform 0.25s ease, box-shadow 0.25s ease; }
+.lift-on-hover:hover { transform: translateY(-3px); }
+
+/* Focus styles for accessibility */
+button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
+  outline: 2px solid #0F6B73;
+  outline-offset: 2px;
+}
+
+/* Mobile nav helper */
+@media (max-width: 768px) {
+  .desktop-nav { display: none !important; }
+  .mobile-menu-btn { display: flex !important; }
+}
+
+@media (max-width: 560px) {
+  body { text-rendering: optimizeLegibility; }
+
+  * {
+    max-width: 100vw;
+    word-wrap: break-word;
+    overflow-wrap: break-word;
+  }
+
+  pre, code, table {
+    max-width: 100%;
+    overflow-x: auto;
+  }
+
+  .site-header-inner {
+    height: 56px !important;
+    padding-inline: 14px !important;
+    gap: 12px !important;
+  }
+
+  .site-header-actions { gap: 6px !important; margin-inline-start: auto; }
+  .site-auth-actions { display: none !important; }
+
+  .site-search-strip { padding: 10px 12px !important; }
+
+  .site-search-form,
+  .article-search-form { gap: 8px !important; }
+
+  .site-search-form button,
+  .article-search-form button,
+  .home-hero-actions button,
+  .load-more-wrap button {
+    min-height: 38px !important;
+    padding: 8px 14px !important;
+    border-radius: 9px !important;
+    font-size: 12px !important;
+    line-height: 1.5 !important;
+  }
+
+  .mobile-drawer-panel {
+    width: min(84vw, 300px) !important;
+    padding: 18px !important;
+  }
+
+  .home-hero-inner { padding: 44px 16px 48px !important; }
+  .home-hero-actions { gap: 8px !important; }
+  .home-section { padding-block: 28px !important; }
+
+  .article-list-page { padding-top: 64px !important; }
+  .article-list-inner { padding-inline: 16px !important; }
+  .article-list-head { padding-top: 22px !important; }
+  .article-list-head h1 { font-size: 24px !important; line-height: 1.35 !important; }
+
+  .filter-bar { margin-bottom: 16px !important; gap: 8px !important; }
+  .filter-chip-row {
+    flex-wrap: nowrap !important;
+    overflow-x: auto;
+    padding-bottom: 2px;
+    scrollbar-width: none;
+  }
+  .filter-chip-row::-webkit-scrollbar { display: none; }
+  .filter-chip-row button { padding: 4px 10px !important; font-size: 11px !important; }
+
+  .article-row {
+    grid-template-columns: 1fr !important;
+    gap: 10px !important;
+    padding: 20px 0 !important;
+  }
+  .article-row-thumb { display: none !important; }
+  .article-row h2 { font-size: 17px !important; line-height: 1.65 !important; }
+  .article-row p { font-size: 13px !important; line-height: 1.8 !important; margin-bottom: 8px !important; }
+  .article-row-meta,
+  .article-row-stats {
+    gap: 8px !important;
+    font-size: 11px !important;
+    overflow-x: auto;
+    flex-wrap: nowrap !important;
+    scrollbar-width: none;
+  }
+  .article-row-meta::-webkit-scrollbar,
+  .article-row-stats::-webkit-scrollbar { display: none; }
+
+  .article-detail-page { padding-top: 56px !important; }
+
+  .article-breadcrumb {
+    padding: 9px 14px !important;
+    font-size: 11px !important;
+    overflow-x: auto;
+    white-space: nowrap;
+    scrollbar-width: none;
+    -ms-overflow-style: none;
+  }
+  .article-breadcrumb::-webkit-scrollbar { display: none; }
+
+  .article-layout {
+    padding: 22px 16px !important;
+    gap: 20px !important;
+    grid-template-columns: 1fr !important;
+    max-width: 100vw;
+    overflow-x: hidden;
+    min-width: 0 !important;
+  }
+
+  .article-main {
+    max-width: none !important;
+    width: 100% !important;
+    min-width: 0 !important;
+    overflow-x: hidden;
+  }
+
+  .article-header {
+    margin-bottom: 22px !important;
+    padding-bottom: 18px !important;
+    overflow-x: hidden;
+    max-width: 100%;
+  }
+
+  .article-header h1 {
+    font-size: clamp(20px, 5vw, 23px) !important;
+    line-height: 1.4 !important;
+    word-wrap: break-word !important;
+    overflow-wrap: break-word !important;
+    max-width: 100% !important;
+  }
+
+  .article-content {
+    font-size: 15px !important;
+    line-height: 1.9 !important;
+    max-width: 100% !important;
+    overflow-x: hidden !important;
+    word-wrap: break-word !important;
+    overflow-wrap: break-word !important;
+  }
+
+  .article-content * { max-width: 100% !important; }
+
+  .article-content pre {
+    overflow-x: auto !important;
+    max-width: calc(100vw - 32px) !important;
+  }
+
+  .article-content table {
+    display: block !important;
+    overflow-x: auto !important;
+    max-width: 100% !important;
+  }
+
+  .article-author-box {
+    padding: 16px !important;
+    gap: 12px !important;
+    max-width: 100% !important;
+    flex-wrap: wrap !important;
+  }
+
+  .article-related { margin-top: 34px !important; max-width: 100% !important; }
+
+  article h2 {
+    font-size: 19px !important;
+    line-height: 1.5 !important;
+    margin: 30px 0 12px !important;
+    word-wrap: break-word !important;
+    overflow-wrap: break-word !important;
+  }
+
+  article p {
+    margin-bottom: 16px !important;
+    word-wrap: break-word !important;
+    overflow-wrap: break-word !important;
+  }
+
+  article blockquote {
+    margin: 22px 0 !important;
+    padding: 12px 14px !important;
+    font-size: 14px !important;
+    line-height: 1.9 !important;
+    max-width: 100% !important;
+    word-wrap: break-word !important;
+    overflow-wrap: break-word !important;
+  }
+
+  .insight-box,
+  .footnote-box {
+    padding: 14px !important;
+    border-radius: 10px !important;
+    max-width: 100% !important;
+    word-wrap: break-word !important;
+    overflow-wrap: break-word !important;
+  }
+}
+
+/* Loading state */
+#loading {
+  position: fixed; inset: 0; background: #FAF7F0;
+  display: flex; align-items: center; justify-content: center;
+  flex-direction: column; z-index: 9999; font-family: 'Inter', sans-serif;
+  transition: opacity 0.4s;
+}
+#loading.hidden { opacity: 0; pointer-events: none; }
+
+/* Diagram skeleton placeholder */
+.tek-diagram-skeleton {
+  width: 100%;
+  height: 100%;
+  min-height: 120px;
+  border-radius: 8px;
+  background: linear-gradient(90deg, #ebe3d2 25%, #f4efe6 50%, #ebe3d2 75%);
+  background-size: 200% 100%;
+  animation: shimmer 1.4s infinite;
+}