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247, 255, .16);--shadow: 0 20px 46px rgba(0, 0, 0, .38)}:root[data-theme=dark] body{background:linear-gradient(180deg,#0b1020,#0f172a 55%,#101827)}:root[data-theme=dark] .site-header{background:#0b1020e6}:root[data-theme=dark] .site-footer{background:#0b1020d1}:root[data-theme=dark] .nav-link:hover,:root[data-theme=dark] .button.ghost,:root[data-theme=dark] .filter-chip,:root[data-theme=dark] .tag-chip{background:#151c2f}:root[data-theme=dark] .button.primary{color:#071026}:root[data-theme=dark] .switch-thumb,:root[data-theme=dark] .contact-icon.email{color:#071026}:root[data-theme=dark] .card,:root[data-theme=dark] .detail-block,:root[data-theme=dark] .skill-card,:root[data-theme=dark] .focus-card,:root[data-theme=dark] .approach-card,:root[data-theme=dark] .contact-card,:root[data-theme=dark] .case-context,:root[data-theme=dark] .case-summary,:root[data-theme=dark] .hero-panel{background:var(--surface);border-color:var(--line)}:root[data-theme=dark] .card:hover,:root[data-theme=dark] .contact-card:hover{box-shadow:0 20px 46px #00000075}:root[data-theme=dark] .card-stack-list li,:root[data-theme=dark] .summary-stack li{color:#dbe5ff}