diff --git a/src/app.css b/src/app.css
index 22e4e1e..716e1ef 100644
--- a/src/app.css
+++ b/src/app.css
@@ -1,3 +1,19 @@
+/*
+ * Theme tokens — single source of truth for colours is src/lib/theme.ts.
+ * These custom properties mirror its `cssVars` map; keep the two in sync.
+ */
+:root {
+	--color-gold: #ffd700;
+	--color-experience: #4ecdc4;
+	--color-projects: #ff6b6b;
+	--color-skills: #f9a825;
+	--color-education: #dda0dd;
+	--bg-space: #05050a;
+	--panel-from: #1a1a2e;
+	--panel-to: #0f0f1a;
+	--text-muted: #a8a8b8;
+}
+
 *,
 *::before,
 *::after {
@@ -13,5 +29,5 @@ body {
 	margin: 0;
 	padding: 0;
 	overflow: hidden;
-	background: #05050a;
+	background: var(--bg-space);
 }
diff --git a/src/lib/components/SkillTree.svelte b/src/lib/components/SkillTree.svelte
index 1ac47f3..635a04f 100644
--- a/src/lib/components/SkillTree.svelte
+++ b/src/lib/components/SkillTree.svelte
@@ -1480,7 +1480,7 @@
 <style>
 	/* Global focus indicators for accessibility */
 	*:focus-visible {
-		outline: 2px solid #ffd700;
+		outline: 2px solid var(--color-gold);
 		outline-offset: 2px;
 	}
 
@@ -1491,14 +1491,14 @@
 	}
 
 	.canvas-container:focus-visible {
-		outline: 3px solid #ffd700;
+		outline: 3px solid var(--color-gold);
 		outline-offset: -3px;
 	}
 
 	/* Tooltip Styles */
 	.tooltip {
 		position: fixed;
-		background: linear-gradient(145deg, #1a1a2e 0%, #12121a 100%);
+		background: linear-gradient(145deg, var(--panel-from) 0%, #12121a 100%);
 		border: 1px solid var(--node-color);
 		border-radius: 8px;
 		padding: 0.75rem 1rem;
@@ -1530,7 +1530,7 @@
 	}
 
 	.tooltip p {
-		color: #a8a8b8;
+		color: var(--text-muted);
 		margin: 0 0 0.5rem 0;
 		font-size: 0.8rem;
 		line-height: 1.5;
@@ -1574,7 +1574,7 @@
 	}
 
 	.modal {
-		background: linear-gradient(145deg, #1a1a2e 0%, #0f0f1a 100%);
+		background: linear-gradient(145deg, var(--panel-from) 0%, var(--panel-to) 100%);
 		border: 1px solid var(--node-color);
 		border-radius: 12px;
 		padding: 1.5rem;
@@ -1631,7 +1631,7 @@
 	}
 
 	.modal p {
-		color: #a8a8b8;
+		color: var(--text-muted);
 		line-height: 1.7;
 		margin: 0;
 		font-size: 0.9rem;
@@ -1673,7 +1673,7 @@
 	}
 
 	.about-me {
-		color: #a8a8b8;
+		color: var(--text-muted);
 		line-height: 1.7;
 		margin: 0 0 1rem 0;
 		font-size: 0.9rem;
@@ -1757,7 +1757,7 @@
 	.highlights {
 		margin: 0.75rem 0 0 0;
 		padding-left: 1.2rem;
-		color: #a8a8b8;
+		color: var(--text-muted);
 		font-size: 0.8rem;
 	}
 
@@ -1907,14 +1907,14 @@
 		transform: translate(-50%, -50%);
 		text-align: center;
 		z-index: 1000;
-		color: #ffd700;
+		color: var(--color-gold);
 	}
 
 	.loading-indicator p {
 		font-family: 'Cinzel Decorative', 'Trajan Pro', serif;
 		font-size: 1.2rem;
 		margin-top: 1rem;
-		color: #ffd700;
+		color: var(--color-gold);
 		text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
 	}
 
@@ -1922,7 +1922,7 @@
 		width: 50px;
 		height: 50px;
 		border: 4px solid rgba(255, 215, 0, 0.2);
-		border-top: 4px solid #ffd700;
+		border-top: 4px solid var(--color-gold);
 		border-radius: 50%;
 		animation: spin 1s linear infinite;
 		margin: 0 auto;
@@ -1983,7 +1983,7 @@
 
 	.welcome-title h1 {
 		font-size: 2.5rem;
-		color: #ffd700;
+		color: var(--color-gold);
 		margin: 0;
 		text-shadow:
 			0 0 20px rgba(255, 215, 0, 0.8),
@@ -1994,7 +1994,7 @@
 
 	.welcome-title p {
 		font-size: 1rem;
-		color: #a8a8b8;
+		color: var(--text-muted);
 		margin: 0.5rem 0 0 0;
 		text-transform: uppercase;
 		letter-spacing: 0.3em;
@@ -2038,8 +2038,8 @@
 		left: 20px;
 		width: 48px;
 		height: 48px;
-		background: linear-gradient(145deg, #1a1a2e 0%, #0f0f1a 100%);
-		border: 2px solid #ffd700;
+		background: linear-gradient(145deg, var(--panel-from) 0%, var(--panel-to) 100%);
+		border: 2px solid var(--color-gold);
 		border-radius: 12px;
 		cursor: pointer;
 		z-index: 950;
@@ -2047,7 +2047,7 @@
 		align-items: center;
 		justify-content: center;
 		font-size: 24px;
-		color: #ffd700;
+		color: var(--color-gold);
 		box-shadow:
 			0 0 20px rgba(255, 215, 0, 0.3),
 			0 4px 12px rgba(0, 0, 0, 0.5);
@@ -2079,8 +2079,8 @@
 		left: 0;
 		width: 380px;
 		height: 100vh;
-		background: linear-gradient(145deg, #1a1a2e 0%, #0f0f1a 100%);
-		border-right: 2px solid #ffd700;
+		background: linear-gradient(145deg, var(--panel-from) 0%, var(--panel-to) 100%);
+		border-right: 2px solid var(--color-gold);
 		box-shadow:
 			4px 0 40px rgba(255, 215, 0, 0.3),
 			8px 0 80px rgba(255, 215, 0, 0.15);
@@ -2103,7 +2103,7 @@
 	}
 
 	.stats-panel::-webkit-scrollbar-thumb {
-		background: linear-gradient(180deg, #ffd700 0%, #b7941f 100%);
+		background: linear-gradient(180deg, var(--color-gold) 0%, #b7941f 100%);
 		border-radius: 5px;
 		border: 2px solid rgba(0, 0, 0, 0.3);
 	}
@@ -2138,7 +2138,7 @@
 		width: 120px;
 		height: 120px;
 		border-radius: 50%;
-		border: 3px solid #ffd700;
+		border: 3px solid var(--color-gold);
 		box-shadow: 0 0 30px rgba(255, 215, 0, 0.5);
 		margin: 0 auto 1rem;
 		object-fit: cover;
@@ -2150,7 +2150,7 @@
 		gap: 2rem;
 		margin-bottom: 1rem;
 		font-size: 0.9rem;
-		color: #a8a8b8;
+		color: var(--text-muted);
 	}
 
 	.stat-item {
@@ -2161,14 +2161,14 @@
 
 	.stat-label {
 		font-weight: bold;
-		color: #ffd700;
+		color: var(--color-gold);
 		text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
 	}
 
 	.character-name {
 		font-size: 1.4rem;
 		font-weight: bold;
-		color: #ffd700;
+		color: var(--color-gold);
 		text-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
 		margin-bottom: 0.25rem;
 		text-transform: uppercase;
@@ -2177,7 +2177,7 @@
 
 	.character-title {
 		font-size: 0.85rem;
-		color: #a8a8b8;
+		color: var(--text-muted);
 		font-style: italic;
 	}
 
@@ -2195,7 +2195,7 @@
 	}
 
 	.proficiency-summary h3 {
-		color: #ffd700;
+		color: var(--color-gold);
 		font-size: 0.9rem;
 		margin-bottom: 0.75rem;
 		text-transform: uppercase;
@@ -2215,7 +2215,7 @@
 	}
 
 	.proficiency-count {
-		color: #ffd700;
+		color: var(--color-gold);
 		font-weight: bold;
 	}
 
@@ -2250,7 +2250,7 @@
 		flex: 1;
 		font-size: 1rem;
 		font-weight: bold;
-		color: #f9a825;
+		color: var(--color-skills);
 		text-shadow: 0 0 10px rgba(249, 168, 37, 0.3);
 	}
 
@@ -2289,7 +2289,7 @@
 
 	.skill-item:hover {
 		background: rgba(255, 255, 255, 0.05);
-		border-left-color: #f9a825;
+		border-left-color: var(--color-skills);
 	}
 
 	.skill-item-icon {
@@ -2306,14 +2306,14 @@
 
 	.skill-proficiency {
 		font-size: 0.7rem;
-		color: #a8a8b8;
+		color: var(--text-muted);
 		display: flex;
 		align-items: center;
 		gap: 0.25rem;
 	}
 
 	.proficiency-stars {
-		color: #ffd700;
+		color: var(--color-gold);
 		font-size: 0.75rem;
 	}
 
@@ -2343,7 +2343,7 @@
 			height: 85dvh;
 			border-left: none;
 			border-right: none;
-			border-top: 2px solid #ffd700;
+			border-top: 2px solid var(--color-gold);
 			border-radius: 16px 16px 0 0;
 			top: auto;
 			bottom: 0;