:root{--bg-0: #0f1117;--bg-1: #161a24;--site-bg: radial-gradient(circle at 12% 18%, #2a3455 0, transparent 33%), radial-gradient(circle at 90% 22%, #242f50 0, transparent 38%), linear-gradient(160deg, var(--bg-0), var(--bg-1));--panel: rgba(27, 33, 47, .62);--line: rgba(167, 188, 255, .16);--text: #ecf0f8;--muted: #a7b1c5;--accent: #8394d8}*{box-sizing:border-box}html,body,#root{min-height:100%;background:var(--site-bg)}html{min-height:100vh;min-height:100dvh}body{min-height:100vh;min-height:100dvh;margin:0;font-family:Inter,system-ui,sans-serif;color:var(--text);background:var(--site-bg);background-attachment:fixed}.site-shell{min-height:100vh;min-height:100dvh;padding:env(safe-area-inset-top) 0 0;overflow:hidden;position:relative;background:var(--site-bg)}.container{width:min(1120px,92%);margin:0 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img{width:100%;height:100%;object-fit:cover;display:block}.cert-card h3{margin-top:10px;margin-bottom:0;color:#dbe3f6;font-size:.95rem;line-height:1.35}.certs-overlay{position:absolute;top:18px;right:18px;bottom:18px;left:18px;border-radius:16px;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#0c0f177a;display:grid;place-items:center;font-weight:600;z-index:3}.cert-viewer img{max-width:min(94vw,1100px);max-height:min(90dvh,820px);object-fit:contain}.projects-section .projects{margin-top:18px}.projects{position:relative;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;padding:20px;background:#191f2e80}.project-card{min-height:146px;border:1px solid rgba(166,184,236,.18);border-radius:16px;display:flex;flex-direction:column;align-items:flex-start;color:#b9c4da;background:linear-gradient(170deg,#181d2bb8,#161a2585);padding:18px}.project-card h3{margin:0 0 8px;color:var(--text)}.project-card p{margin:0 0 16px;line-height:1.6}.project-card 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960px){.hero,.split,.skills-grid,.cert-grid,.projects,.contact-grid{grid-template-columns:1fr}.hero{min-height:auto;padding-block:56px}}@media (max-width: 640px){.screen{padding:22px}.footer{flex-direction:column;gap:10px}.header-wrap{top:8px}.logo{width:44px;height:44px}.btn{text-align:center}.cta-row{align-items:stretch}}