:root{--bg:#ffffff;--surface:#f4f4f5;--text-main:#18181b;--text-muted:#71717a;--border:#e4e4e7;--accent:#2563eb;--accent-hover:#1d4ed8;--radius:8px;--nav-height:70px}[data-theme="dark"]{--bg:#09090b;--surface:#18181b;--text-main:#fafafa;--text-muted:#a1a1aa;--border:#27272a;--accent:#38bdf8;--accent-hover:#0ea5e9}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:'Inter',sans-serif;background-color:var(--bg);color:var(--text-main);line-height:1.6;transition:background-color 0.3s ease,color 0.3s ease;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit;transition:0.2s}ul{list-style:none}img{display:block;max-width:100%}.container{max-width:700px;margin:0 auto;padding:0 24px}.header{position:fixed;top:0;left:0;right:0;height:var(--nav-height);background:var(--bg);border-bottom:1px solid var(--border);z-index:100;display:flex;align-items:center;transition:background-color 0.3s ease,border-color 0.3s ease}.header-inner{display:flex;justify-content:space-between;align-items:center;width:100%}.logo{font-weight:700;font-size:1.05rem;letter-spacing:-.5px}.nav-right{display:flex;align-items:center;gap:24px}.nav-links{display:flex;gap:24px;font-size:.9rem;font-weight:500}.nav-links a{color:var(--text-muted)}.nav-links a:hover{color:var(--accent)}.theme-toggle{background:none;border:1px solid var(--border);cursor:pointer;color:var(--text-main);font-size:1.2rem;display:flex;align-items:center;justify-content:center;padding:8px;border-radius:var(--radius);transition:background 0.2s;width:40px;height:40px}.theme-toggle:hover{background:var(--surface);border-color:var(--text-muted)}section{padding:60px 0;border-bottom:1px solid var(--border)}section:last-child{border-bottom:none}.section-title{font-size:.8rem;text-transform:uppercase;letter-spacing:1.2px;color:var(--text-muted);margin-bottom:32px;font-weight:600}.hero{padding-top:calc(var(--nav-height) + 60px);padding-bottom:60px}.avatar{width:80px;height:80px;border-radius:50%;object-fit:cover;margin-bottom:24px;border:2px solid var(--border);box-shadow:0 4px 12px rgb(0 0 0 / .1)}.hero-content h1{font-size:2.2rem;font-weight:800;letter-spacing:-1px;line-height:1.2;margin-bottom:16px}.hero-content p{font-size:1.1rem;color:var(--text-muted);max-width:600px;margin-bottom:32px}.cta-group{display:flex;gap:12px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:var(--radius);font-weight:500;font-size:.9rem;transition:all 0.2s ease}.btn-primary{background:var(--text-main);color:var(--bg)}.btn-primary:hover{opacity:.9;transform:translateY(-1px)}.btn-secondary{background:var(--surface);color:var(--text-main);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--text-muted)}.experience-item{display:grid;grid-template-columns:1fr;gap:8px;margin-bottom:40px}@media (min-width:600px){.experience-item{grid-template-columns:130px 1fr;gap:24px}}.date{font-size:.85rem;color:var(--text-muted);font-variant-numeric:tabular-nums;padding-top:4px}.role-title{font-weight:600;font-size:1.05rem;color:var(--text-main)}.company{font-weight:400;color:var(--text-muted)}.description{font-size:.95rem;color:var(--text-muted);margin-top:8px}.skills-grid{display:flex;flex-wrap:wrap;gap:8px}.skill-tag{background:var(--surface);color:var(--text-main);padding:6px 12px;border-radius:6px;font-size:.85rem;font-weight:500;border:1px solid var(--border);transition:border 0.2s}.skill-tag:hover{border-color:var(--accent)}.cert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}.cert-card{background:var(--surface);padding:16px;border-radius:var(--radius);border:1px solid var(--border);display:flex;flex-direction:column;gap:6px;transition:border-color 0.2s;height:100%}.cert-card:hover{border-color:var(--accent)}.cert-title{font-weight:600;font-size:.9rem;line-height:1.4;color:var(--text-main)}.cert-issuer{font-size:.8rem;color:var(--text-muted)}footer{padding:40px 0 80px;text-align:center;color:var(--text-muted);font-size:.9rem}.socials{display:flex;justify-content:center;gap:20px;margin-bottom:20px}.socials a{font-size:1.4rem;color:var(--text-main);transition:color 0.2s}.socials a:hover{color:var(--accent)}@media (max-width:600px){.nav-links{display:none}.hero-content h1{font-size:1.8rem}}