:root{--bg: #0a1020;--bg-2: #0d1526;--surface: #ffffff;--surface-soft: #f4f7fb;--ink: #0f1a2e;--ink-soft: #52607a;--line: #e2e8f2;--brand: #2f6bff;--brand-2: #22d3ee;--brand-soft: #eaf1ff;--on-dark: #e8eefc;--on-dark-soft: #9fb0d0;--dark-card: rgba(255, 255, 255, .04);--dark-line: rgba(255, 255, 255, .09);--wrap: 1120px;--radius: 16px;--shadow: 0 10px 30px rgba(15, 26, 46, .08)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}body{background:var(--bg);color:var(--ink);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}.section{padding:80px 0}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--brand);margin-bottom:12px}.section-title{font-size:clamp(26px,4vw,38px);font-weight:800;letter-spacing:-.02em}.center{text-align:center}.nav{position:sticky;top:0;z-index:50;background:#0a1020b8;backdrop-filter:blur(10px);border-bottom:1px solid var(--dark-line)}.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}.brand{font-weight:800;letter-spacing:-.02em;color:var(--on-dark);font-size:20px}.brand span{color:var(--brand-2)}.nav-right{display:flex;align-items:center;gap:22px}.nav-links{display:flex;gap:28px}.nav-links a{color:var(--on-dark-soft);font-size:14px;font-weight:500;transition:color .15s}.nav-links a:hover{color:var(--on-dark)}@media(max-width:760px){.nav-links{display:none}}.lang-switch{display:inline-flex;align-items:center;gap:2px;padding:3px;background:#ffffff0f;border:1px solid var(--dark-line);border-radius:999px}.lang-switch 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#2f6bff73}.btn-ghost{background:transparent;color:var(--on-dark);border-color:#ffffff38}.btn-ghost:hover{background:#ffffff0f;border-color:#fff6}.hero-photo{justify-self:center;position:relative}.hero-photo .ring{width:min(360px,74vw);aspect-ratio:1;border-radius:50%;background:radial-gradient(circle at 50% 30%,#22d3ee59,#2f6bff26 45%,#0a102000 70%);display:grid;place-items:center}.hero-photo img{width:86%;aspect-ratio:1;object-fit:cover;object-position:center 22%;border-radius:50%;border:3px solid rgba(255,255,255,.14);box-shadow:0 20px 60px #00000073}.hero-photo .placeholder{width:86%;aspect-ratio:1;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#16264a,#0d1526);border:3px solid rgba(255,255,255,.14);color:var(--brand-2);font-size:64px;font-weight:800;letter-spacing:-.03em}@media(max-width:860px){.hero-grid{grid-template-columns:1fr;gap:32px;padding:56px 0 64px;text-align:center}.hero-bio{margin-left:auto;margin-right:auto}.hero-cta{justify-content:center}.hero-photo{order:-1}}.skills{background:var(--surface-soft);color:var(--ink)}.skills-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:40px}.skill-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);transition:transform .15s ease,box-shadow .2s ease}.skill-card:hover{transform:translateY(-3px);box-shadow:0 16px 34px #0f1a2e1f}.skill-icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:14px;background:var(--brand-soft);color:var(--brand)}.skill-icon svg{width:22px;height:22px}.skill-card h3{font-size:16px;font-weight:700;letter-spacing:-.01em}.skill-card 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var(--line);border-radius:14px;padding:18px 20px;box-shadow:var(--shadow)}.edu-card+.edu-card{margin-top:14px}.edu-card h3{font-size:15.5px;font-weight:700}.edu-card .org{color:var(--ink-soft);font-size:14px}.edu-card .period{color:var(--brand);font-size:12.5px;font-weight:600;margin-top:2px}.cert-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.cert-chip{background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;padding:7px 14px;border-radius:999px}.sub-title{font-size:14px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-soft);margin-bottom:8px}@media(max-width:820px){.edu-grid{grid-template-columns:1fr;gap:28px}}.contact{background:linear-gradient(165deg,#0e1c3a,#0a1020 70%);color:var(--on-dark);text-align:center}.contact p.lede{color:var(--on-dark-soft);max-width:52ch;margin:14px auto 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