diff --git a/index.html b/index.html
index 2f8ec99..fac32fa 100644
--- a/index.html
+++ b/index.html
@@ -165,7 +165,7 @@
     </section>
 
     <!-- Hinnat -->
-    <section class="section section-dark" id="hinnat">
+    <section class="section section-alt" id="hinnat">
         <div class="container">
             <h2 class="section-title">Hinnat</h2>
             <p class="section-subtitle">Selkeä kuukausihinnoittelu ilman piilokustannuksia. Kaikki hinnat alv 0%.</p>
@@ -479,7 +479,7 @@
     </section>
 
     <!-- Usein kysytyt kysymykset -->
-    <section class="section section-dark" id="ukk">
+    <section class="section section-alt" id="ukk">
         <div class="container">
             <h2 class="section-title">Usein kysytyt kysymykset</h2>
             <p class="section-subtitle">Vastauksia yleisimpiin colocation-palveluita koskeviin kysymyksiin</p>
diff --git a/style.css b/style.css
index 7e8a7a4..72468f2 100644
--- a/style.css
+++ b/style.css
@@ -6,26 +6,28 @@
 }
 
 :root {
-    --color-bg: #0c0a1d;
-    --color-bg-light: #151030;
-    --color-bg-card: #1a1340;
-    --color-primary: #8b5cf6;
-    --color-primary-light: #a78bfa;
-    --color-primary-dark: #7c3aed;
-    --color-accent: #22d3ee;
-    --color-text: #e2e8f0;
-    --color-text-muted: #94a3b8;
-    --color-text-heading: #f1f5f9;
-    --color-border: #2d1f5e;
-    --color-surface: #1e1545;
+    --color-bg: #ffffff;
+    --color-bg-alt: #faf9f7;
+    --color-bg-dark: #1a1a2e;
+    --color-bg-dark-light: #232340;
+    --color-primary: #e85d4a;
+    --color-primary-light: #f07060;
+    --color-primary-dark: #d14836;
+    --color-accent: #e85d4a;
+    --color-text: #374151;
+    --color-text-muted: #6b7280;
+    --color-text-heading: #1e1e2e;
+    --color-border: #e5e7eb;
+    --color-border-dark: #2d2d45;
+    --color-surface: #f3f4f6;
     --color-white: #ffffff;
     --font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
     --max-width: 1200px;
     --header-height: 72px;
     --radius: 12px;
     --radius-sm: 8px;
-    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
-    --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.4);
+    --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 4px 16px rgba(0, 0, 0, 0.06);
+    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.08), 0 12px 40px rgba(0, 0, 0, 0.1);
     --transition: 0.3s ease;
 }
 
@@ -43,13 +45,13 @@ body {
 }
 
 a {
-    color: var(--color-primary-light);
+    color: var(--color-primary);
     text-decoration: none;
     transition: color var(--transition);
 }
 
 a:hover {
-    color: var(--color-accent);
+    color: var(--color-primary-dark);
 }
 
 .container {
@@ -65,17 +67,39 @@ a:hover {
     left: 0;
     right: 0;
     height: var(--header-height);
-    background: rgba(10, 22, 40, 0.9);
+    background: rgba(26, 26, 46, 0.95);
     backdrop-filter: blur(12px);
     -webkit-backdrop-filter: blur(12px);
-    border-bottom: 1px solid var(--color-border);
+    border-bottom: 1px solid var(--color-border-dark);
     z-index: 1000;
-    transition: background var(--transition);
+    transition: all var(--transition);
 }
 
 .header.scrolled {
-    background: rgba(10, 22, 40, 0.98);
-    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
+    background: var(--color-white);
+    border-bottom-color: var(--color-border);
+    box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
+}
+
+.header.scrolled .logo {
+    color: var(--color-text-heading);
+}
+
+.header.scrolled .logo-icon {
+    color: var(--color-primary);
+}
+
+.header.scrolled .nav a {
+    color: var(--color-text-muted);
+}
+
+.header.scrolled .nav a:hover,
+.header.scrolled .nav a.active {
+    color: var(--color-text-heading);
+}
+
+.header.scrolled .nav-toggle span {
+    background: var(--color-text-heading);
 }
 
 .header-inner {
@@ -96,7 +120,7 @@ a:hover {
 }
 
 .logo:hover {
-    color: var(--color-white);
+    color: inherit;
 }
 
 .logo strong {
@@ -113,7 +137,7 @@ a:hover {
 }
 
 .nav a {
-    color: var(--color-text-muted);
+    color: rgba(255, 255, 255, 0.7);
     font-size: 0.95rem;
     font-weight: 500;
     transition: color var(--transition);
@@ -158,10 +182,10 @@ a:hover {
     transition: all var(--transition);
 }
 
-/* === Hero === */
+/* === Hero (stays dark) === */
 .hero {
     padding: 160px 0 100px;
-    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-light) 50%, var(--color-bg) 100%);
+    background: linear-gradient(135deg, #1a1a2e 0%, #232340 50%, #1a1a2e 100%);
     position: relative;
     overflow: hidden;
 }
@@ -174,8 +198,8 @@ a:hover {
     right: 0;
     bottom: 0;
     background:
-        radial-gradient(ellipse 800px 600px at 20% 50%, rgba(139, 92, 246, 0.08) 0%, transparent 70%),
-        radial-gradient(ellipse 600px 400px at 80% 30%, rgba(34, 211, 238, 0.05) 0%, transparent 70%);
+        radial-gradient(ellipse 800px 600px at 20% 50%, rgba(232, 93, 74, 0.1) 0%, transparent 70%),
+        radial-gradient(ellipse 600px 400px at 80% 30%, rgba(232, 93, 74, 0.05) 0%, transparent 70%);
     pointer-events: none;
 }
 
@@ -207,7 +231,7 @@ a:hover {
 
 .hero-subtitle {
     font-size: 1.2rem;
-    color: var(--color-text-muted);
+    color: rgba(255, 255, 255, 0.65);
     line-height: 1.7;
     margin-bottom: 36px;
     max-width: 560px;
@@ -237,17 +261,18 @@ a:hover {
 
 .stat-label {
     font-size: 0.85rem;
-    color: var(--color-text-muted);
+    color: rgba(255, 255, 255, 0.5);
     margin-top: 4px;
 }
 
-/* === Hero Pricing === */
+/* === Hero Pricing (dark context) === */
 .hero-pricing {
-    background: var(--color-bg-card);
-    border: 1px solid var(--color-border);
+    background: rgba(255, 255, 255, 0.06);
+    border: 1px solid rgba(255, 255, 255, 0.12);
     border-radius: var(--radius);
     padding: 32px 28px;
     text-align: center;
+    backdrop-filter: blur(8px);
 }
 
 .hero-pricing-label {
@@ -255,7 +280,7 @@ a:hover {
     font-weight: 600;
     text-transform: uppercase;
     letter-spacing: 0.1em;
-    color: var(--color-accent);
+    color: var(--color-primary-light);
     margin-bottom: 20px;
 }
 
@@ -271,8 +296,8 @@ a:hover {
     align-items: center;
     justify-content: space-between;
     padding: 14px 18px;
-    background: var(--color-surface);
-    border: 1px solid var(--color-border);
+    background: rgba(255, 255, 255, 0.05);
+    border: 1px solid rgba(255, 255, 255, 0.1);
     border-radius: var(--radius-sm);
     text-decoration: none;
     transition: all var(--transition);
@@ -281,13 +306,13 @@ a:hover {
 
 .hero-price-card:hover {
     border-color: var(--color-primary);
-    background: var(--color-bg-light);
+    background: rgba(232, 93, 74, 0.1);
     transform: translateX(4px);
 }
 
 .hero-price-card-featured {
     border-color: var(--color-primary);
-    background: rgba(139, 92, 246, 0.1);
+    background: rgba(232, 93, 74, 0.08);
 }
 
 .hero-price-badge {
@@ -307,7 +332,7 @@ a:hover {
 .hero-price-name {
     font-size: 1rem;
     font-weight: 600;
-    color: var(--color-text);
+    color: rgba(255, 255, 255, 0.8);
 }
 
 .hero-price-value {
@@ -319,12 +344,12 @@ a:hover {
 .hero-price-value small {
     font-size: 0.8rem;
     font-weight: 500;
-    color: var(--color-text-muted);
+    color: rgba(255, 255, 255, 0.5);
 }
 
 .hero-pricing-note {
     font-size: 0.8rem;
-    color: var(--color-text-muted);
+    color: rgba(255, 255, 255, 0.5);
     margin-bottom: 20px;
     line-height: 1.4;
 }
@@ -357,24 +382,24 @@ a:hover {
     background: var(--color-primary-dark);
     color: var(--color-white);
     transform: translateY(-2px);
-    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
+    box-shadow: 0 4px 20px rgba(232, 93, 74, 0.35);
 }
 
 .btn-secondary {
-    background: var(--color-surface);
-    color: var(--color-text);
-    border: 1px solid var(--color-border);
+    background: rgba(255, 255, 255, 0.1);
+    color: var(--color-white);
+    border: 1px solid rgba(255, 255, 255, 0.2);
 }
 
 .btn-secondary:hover {
-    background: var(--color-bg-card);
+    background: rgba(255, 255, 255, 0.15);
     color: var(--color-white);
-    border-color: var(--color-primary);
+    border-color: rgba(255, 255, 255, 0.4);
 }
 
 .btn-outline {
     background: transparent;
-    color: var(--color-primary-light);
+    color: var(--color-primary);
     border: 2px solid var(--color-primary);
 }
 
@@ -384,13 +409,29 @@ a:hover {
     transform: translateY(-2px);
 }
 
+/* Light context button overrides */
+.section .btn-secondary {
+    background: var(--color-surface);
+    color: var(--color-text);
+    border: 1px solid var(--color-border);
+}
+
+.section .btn-secondary:hover {
+    background: var(--color-border);
+    color: var(--color-text-heading);
+}
+
 /* === Sections === */
 .section {
     padding: 100px 0;
 }
 
+.section-alt {
+    background: var(--color-bg-alt);
+}
+
 .section-dark {
-    background: var(--color-bg-light);
+    background: var(--color-bg-dark);
 }
 
 .section-title {
@@ -402,6 +443,10 @@ a:hover {
     letter-spacing: -0.02em;
 }
 
+.section-dark .section-title {
+    color: var(--color-white);
+}
+
 .section-subtitle {
     font-size: 1.1rem;
     color: var(--color-text-muted);
@@ -412,6 +457,10 @@ a:hover {
     margin-right: auto;
 }
 
+.section-dark .section-subtitle {
+    color: rgba(255, 255, 255, 0.6);
+}
+
 /* === Services === */
 .services-grid {
     display: grid;
@@ -420,7 +469,7 @@ a:hover {
 }
 
 .service-card {
-    background: var(--color-bg-card);
+    background: var(--color-white);
     border: 1px solid var(--color-border);
     border-radius: var(--radius);
     padding: 36px 28px;
@@ -436,7 +485,7 @@ a:hover {
 
 .service-card.featured {
     border-color: var(--color-primary);
-    background: linear-gradient(180deg, rgba(139, 92, 246, 0.08) 0%, var(--color-bg-card) 100%);
+    box-shadow: var(--shadow);
 }
 
 .service-badge {
@@ -454,7 +503,7 @@ a:hover {
 }
 
 .service-icon {
-    color: var(--color-primary-light);
+    color: var(--color-primary);
     margin-bottom: 20px;
 }
 
@@ -479,7 +528,7 @@ a:hover {
     padding: 6px 0;
     color: var(--color-text);
     font-size: 0.9rem;
-    border-bottom: 1px solid rgba(30, 58, 95, 0.5);
+    border-bottom: 1px solid var(--color-border);
 }
 
 .service-features li:last-child {
@@ -499,12 +548,16 @@ a:hover {
 }
 
 .feature-icon {
-    color: var(--color-primary-light);
+    color: var(--color-primary);
     margin-bottom: 16px;
     display: flex;
     justify-content: center;
 }
 
+.section-dark .feature-icon {
+    color: var(--color-primary-light);
+}
+
 .feature h3 {
     font-size: 1.15rem;
     font-weight: 700;
@@ -512,12 +565,20 @@ a:hover {
     margin-bottom: 10px;
 }
 
+.section-dark .feature h3 {
+    color: var(--color-white);
+}
+
 .feature p {
     color: var(--color-text-muted);
     font-size: 0.95rem;
     line-height: 1.6;
 }
 
+.section-dark .feature p {
+    color: rgba(255, 255, 255, 0.6);
+}
+
 /* === Pricing === */
 .pricing-grid {
     display: grid;
@@ -527,13 +588,18 @@ a:hover {
 }
 
 .pricing-card {
-    background: var(--color-bg-card);
+    background: var(--color-white);
     border: 1px solid var(--color-border);
     border-radius: var(--radius);
     padding: 36px 28px;
     text-align: center;
     transition: all var(--transition);
     position: relative;
+    box-shadow: var(--shadow);
+}
+
+.section-alt .pricing-card {
+    background: var(--color-white);
 }
 
 .pricing-card:hover {
@@ -543,8 +609,8 @@ a:hover {
 
 .pricing-featured {
     border-color: var(--color-primary);
-    background: linear-gradient(180deg, rgba(139, 92, 246, 0.1) 0%, var(--color-bg-card) 100%);
     transform: scale(1.04);
+    box-shadow: var(--shadow-lg);
 }
 
 .pricing-featured:hover {
@@ -580,7 +646,7 @@ a:hover {
 .price-amount {
     font-size: 3rem;
     font-weight: 800;
-    color: var(--color-white);
+    color: var(--color-text-heading);
     line-height: 1;
 }
 
@@ -603,7 +669,7 @@ a:hover {
     padding: 8px 0;
     font-size: 0.95rem;
     color: var(--color-text);
-    border-bottom: 1px solid rgba(30, 58, 95, 0.4);
+    border-bottom: 1px solid var(--color-border);
 }
 
 .pricing-features li:last-child {
@@ -611,7 +677,7 @@ a:hover {
 }
 
 .pricing-features svg {
-    color: var(--color-accent);
+    color: var(--color-primary);
     flex-shrink: 0;
 }
 
@@ -651,13 +717,13 @@ a:hover {
 .form-group label {
     font-size: 0.9rem;
     font-weight: 600;
-    color: var(--color-text);
+    color: var(--color-text-heading);
     margin-bottom: 6px;
 }
 
 .form-group input,
 .form-group textarea {
-    background: var(--color-bg-card);
+    background: var(--color-white);
     border: 1px solid var(--color-border);
     border-radius: var(--radius-sm);
     padding: 12px 16px;
@@ -671,7 +737,7 @@ a:hover {
 .form-group textarea:focus {
     outline: none;
     border-color: var(--color-primary);
-    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
+    box-shadow: 0 0 0 3px rgba(232, 93, 74, 0.12);
 }
 
 .form-group textarea {
@@ -691,11 +757,11 @@ a:hover {
 }
 
 .form-status.success {
-    color: var(--color-accent);
+    color: #059669;
 }
 
 .form-status.error {
-    color: #f87171;
+    color: var(--color-primary);
 }
 
 .contact-info {
@@ -711,7 +777,7 @@ a:hover {
 }
 
 .contact-item svg {
-    color: var(--color-primary-light);
+    color: var(--color-primary);
     flex-shrink: 0;
     margin-top: 2px;
 }
@@ -729,10 +795,10 @@ a:hover {
     line-height: 1.5;
 }
 
-/* === Footer === */
+/* === Footer (dark) === */
 .footer {
-    background: var(--color-bg);
-    border-top: 1px solid var(--color-border);
+    background: var(--color-bg-dark);
+    border-top: none;
     padding-top: 56px;
 }
 
@@ -743,17 +809,22 @@ a:hover {
     padding-bottom: 40px;
 }
 
-.footer-brand .logo {
+.footer .logo {
+    color: var(--color-white);
     margin-bottom: 12px;
 }
 
+.footer .logo-icon {
+    color: var(--color-primary-light);
+}
+
 .footer-brand p {
-    color: var(--color-text-muted);
+    color: rgba(255, 255, 255, 0.5);
     font-size: 0.95rem;
 }
 
 .footer-links h4 {
-    color: var(--color-text-heading);
+    color: var(--color-white);
     font-size: 0.95rem;
     font-weight: 700;
     margin-bottom: 16px;
@@ -761,7 +832,7 @@ a:hover {
 
 .footer-links a {
     display: block;
-    color: var(--color-text-muted);
+    color: rgba(255, 255, 255, 0.5);
     font-size: 0.9rem;
     padding: 4px 0;
 }
@@ -771,12 +842,12 @@ a:hover {
 }
 
 .footer-bottom {
-    border-top: 1px solid var(--color-border);
+    border-top: 1px solid var(--color-border-dark);
     padding: 20px 0;
 }
 
 .footer-bottom p {
-    color: var(--color-text-muted);
+    color: rgba(255, 255, 255, 0.4);
     font-size: 0.85rem;
     text-align: center;
 }
@@ -786,7 +857,7 @@ a:hover {
     text-align: center;
     margin-top: 32px;
     padding: 20px;
-    background: var(--color-bg-card);
+    background: var(--color-bg-alt);
     border: 1px solid var(--color-border);
     border-radius: var(--radius);
     font-size: 1.05rem;
@@ -796,9 +867,9 @@ a:hover {
     font-weight: 600;
 }
 
-/* === Green Energy === */
+/* === Green Energy (simplified) === */
 .section-green {
-    background: linear-gradient(135deg, var(--color-bg) 0%, #0a2418 50%, var(--color-bg) 100%);
+    background: var(--color-bg-alt);
 }
 
 .green-energy {
@@ -812,8 +883,8 @@ a:hover {
 
 .green-badge {
     display: inline-block;
-    background: rgba(34, 211, 238, 0.15);
-    color: var(--color-accent);
+    background: #ecfdf5;
+    color: #059669;
     font-size: 0.85rem;
     font-weight: 700;
     padding: 6px 18px;
@@ -821,7 +892,7 @@ a:hover {
     text-transform: uppercase;
     letter-spacing: 0.05em;
     margin-bottom: 20px;
-    border: 1px solid rgba(34, 211, 238, 0.3);
+    border: 1px solid #a7f3d0;
 }
 
 .green-energy h2 {
@@ -849,13 +920,13 @@ a:hover {
     display: flex;
     align-items: center;
     gap: 10px;
-    color: var(--color-accent);
+    color: #059669;
     font-weight: 600;
     font-size: 0.95rem;
 }
 
 .green-stat svg {
-    color: var(--color-accent);
+    color: #059669;
 }
 
 /* === Tech Grid === */
@@ -866,10 +937,11 @@ a:hover {
 }
 
 .tech-card {
-    background: var(--color-bg-card);
+    background: var(--color-white);
     border: 1px solid var(--color-border);
     border-radius: var(--radius);
     padding: 28px 24px;
+    box-shadow: var(--shadow);
 }
 
 .tech-card h4 {
@@ -917,7 +989,7 @@ a:hover {
 .price-amount-custom {
     font-size: 1.5rem;
     font-weight: 700;
-    color: var(--color-primary-light);
+    color: var(--color-primary);
     display: block;
     margin: 12px 0 8px;
 }
@@ -952,7 +1024,7 @@ a:hover {
 /* === Konesali Page === */
 .page-hero {
     padding: 140px 0 60px;
-    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-light) 100%);
+    background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-bg-dark-light) 100%);
     text-align: center;
 }
 
@@ -966,7 +1038,7 @@ a:hover {
 
 .page-hero p {
     font-size: 1.15rem;
-    color: var(--color-text-muted);
+    color: rgba(255, 255, 255, 0.6);
 }
 
 .specs-overview {
@@ -977,16 +1049,17 @@ a:hover {
 }
 
 .spec-highlight {
-    background: var(--color-bg-card);
+    background: var(--color-white);
     border: 1px solid var(--color-border);
     border-radius: var(--radius);
     padding: 32px 20px;
+    box-shadow: var(--shadow);
 }
 
 .spec-highlight-value {
     font-size: 2rem;
     font-weight: 800;
-    color: var(--color-primary-light);
+    color: var(--color-primary);
     margin-bottom: 8px;
 }
 
@@ -1008,7 +1081,7 @@ a:hover {
 }
 
 .spec-section-icon {
-    color: var(--color-primary-light);
+    color: var(--color-primary);
     flex-shrink: 0;
 }
 
@@ -1025,10 +1098,11 @@ a:hover {
 }
 
 .spec-table {
-    background: var(--color-bg-card);
+    background: var(--color-white);
     border: 1px solid var(--color-border);
     border-radius: var(--radius);
     overflow: hidden;
+    box-shadow: var(--shadow);
 }
 
 .spec-table table {
@@ -1106,11 +1180,17 @@ a:hover {
 }
 
 .faq-item {
-    background: var(--color-bg-card);
+    background: var(--color-white);
     border: 1px solid var(--color-border);
     border-radius: var(--radius-sm);
     overflow: hidden;
     transition: border-color var(--transition);
+    box-shadow: var(--shadow);
+}
+
+.section-dark .faq-item {
+    background: var(--color-bg-dark-light);
+    border-color: var(--color-border-dark);
 }
 
 .faq-item:hover {
@@ -1134,6 +1214,10 @@ a:hover {
     gap: 16px;
 }
 
+.section-dark .faq-question {
+    color: var(--color-white);
+}
+
 .faq-question svg {
     flex-shrink: 0;
     color: var(--color-text-muted);
@@ -1161,6 +1245,10 @@ a:hover {
     line-height: 1.7;
 }
 
+.section-dark .faq-answer p {
+    color: rgba(255, 255, 255, 0.6);
+}
+
 /* === Animations === */
 .fade-in {
     opacity: 0;
@@ -1206,12 +1294,12 @@ a:hover {
         top: var(--header-height);
         left: 0;
         right: 0;
-        background: var(--color-bg);
+        background: var(--color-white);
         flex-direction: column;
         padding: 24px;
         gap: 0;
         border-bottom: 1px solid var(--color-border);
-        box-shadow: var(--shadow);
+        box-shadow: var(--shadow-lg);
     }
 
     .nav.open {
@@ -1222,6 +1310,11 @@ a:hover {
         padding: 14px 0;
         border-bottom: 1px solid var(--color-border);
         font-size: 1.05rem;
+        color: var(--color-text);
+    }
+
+    .nav a:hover {
+        color: var(--color-primary);
     }
 
     .nav a:last-child {