:root{
  --bg:#ffffff;
  --text:#0f1720;
  --muted:#57606a;
  --accent:#1f3cff;
  --accent-strong:#0f25b8;
  --radius:12px;
  --container:1100px;
}

/* Base */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
  background-color:var(--bg);
  color:var(--text);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}

.skip-link{
  position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden;
}
.skip-link:focus{position:static;width:auto;height:auto;margin:8px 20px;padding:8px;background:#000;color:#fff;border-radius:6px}

/* Header / Nav */
.site-header{background:var(--bg);position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(31,60,255,0.04)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:18px 0}
.brand a{font-weight:700;color:var(--text);text-decoration:none;font-size:16px}
.site-nav{position:relative}
.nav-list{display:flex;gap:18px;list-style:none;margin:0;padding:0}
.nav-list a{color:var(--muted);text-decoration:none;padding:8px 6px;border-radius:8px;font-size:14px;transition:color .15s ease,background .15s ease}
.nav-list a:hover{color:var(--text);background:rgba(31,60,255,0.06)}
.nav-toggle{display:none;border:0;background:transparent;padding:8px 10px;font-weight:600;color:var(--text);font-size:14px;cursor:pointer}

/* Hero */
.hero{padding:80px 0;background:linear-gradient(180deg,rgba(31,60,255,0.06),transparent)}
.hero-content{text-align:center}
.hero h1{font-size:44px;font-weight:700;margin:0 0 12px;color:var(--text)}
.role{font-weight:600;color:var(--muted);margin:0 0 12px;font-size:16px}
.lede{font-size:18px;font-weight:400;color:var(--muted);margin:0 0 24px;line-height:1.6}

.cta-buttons{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:4px}
.btn-primary{background:var(--accent);color:#ffffff;padding:12px 22px;border-radius:10px;text-decoration:none;font-weight:700;border:none;box-shadow:none;transition:transform .18s ease,box-shadow .18s ease;cursor:pointer;font-size:15px}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(31,60,255,0.18);background:var(--accent-strong)}
.btn-secondary{color:var(--accent);text-decoration:none;padding:12px 18px;border-radius:10px;border:1px solid rgba(31,60,255,0.12);font-weight:600;background:transparent;transition:transform .18s ease,box-shadow .18s ease;cursor:pointer;font-size:15px}
.btn-secondary:hover{transform:translateY(-3px);background:rgba(31,60,255,0.04);border-color:rgba(31,60,255,0.16)}

/* Sections */
.section{padding:80px 0;text-align:center}
.section h2{font-size:28px;font-weight:700;margin-bottom:18px;color:var(--text)}
h2{font-size:28px;font-weight:700;margin-bottom:18px;color:var(--text)}
h3{font-weight:700;color:var(--text)}

/* Cards */
.cards-container{display:flex;justify-content:center;flex-wrap:wrap;gap:20px;margin-top:28px}
.card{background:var(--bg);padding:26px;border-radius:16px;width:300px;border:1px solid rgba(31,60,255,0.08);box-shadow:0 10px 30px rgba(15,23,32,0.06);transition:transform .22s ease,box-shadow .22s ease}
.card:hover{transform:translateY(-8px);box-shadow:0 20px 40px rgba(15,23,32,0.12)}
.card h3{font-weight:700;margin-top:0;margin-bottom:8px;color:var(--text)}
.card p{color:var(--muted);margin:0;font-size:15px;line-height:1.6}

/* Skills */
.skills ul{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin:0}
.skills li{background:#f7f9fc;padding:8px 12px;border-radius:999px;color:var(--muted);font-weight:600;font-size:14px}

/* Footer */
footer{padding:40px 0;color:var(--muted);text-align:center;border-top:1px solid rgba(31,60,255,0.04);background:var(--bg);font-size:14px}

/* Responsive */
@media (max-width:900px){
  .hero h1{font-size:36px}
  .role{font-size:15px}
  .lede{font-size:16px}
  .section{padding:60px 0}
  h2{font-size:24px;margin-bottom:16px}
  .nav-list{display:none;position:absolute;right:0;top:56px;background:var(--bg);padding:12px;border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,0.08);flex-direction:column;width:200px;border:1px solid rgba(31,60,255,0.04)}
  .nav-toggle{display:inline-flex;align-items:center;gap:8px}
  .nav-list.show{display:flex}
  .cards-container{gap:16px}
  .container{padding:0 16px}
}

@media (max-width:480px){
  .hero{padding:56px 0}
  .hero h1{font-size:28px;margin-bottom:8px}
  .role{font-size:14px;margin-bottom:8px}
  .lede{font-size:15px;margin-bottom:20px}
  .cta-buttons{gap:10px}
  .btn-primary,.btn-secondary{padding:10px 16px;font-size:14px}
  .section{padding:48px 0}
  h2{font-size:20px;margin-bottom:16px}
  .cards-container{gap:12px;margin-top:20px}
  .card{width:100%;max-width:320px;padding:20px}
  .card p{font-size:14px}
  .skills ul{gap:8px}
  .skills li{padding:6px 10px;font-size:12px}
}