:root{
  --bg: #0b1220;
  --bg-elev: #11182a;
  --text: #e5eefb;
  --muted: #8aa0bf;
  --accent: #0ea5e9;
  --accent-2: #22c55e;
  --card: #0f172a;
  --border: #1f2a44;
  --shadow: 0 10px 30px rgba(0,0,0,.25);
}
:root.light{
  --bg:#f8fafc; --bg-elev:#ffffff; --text:#0f172a; --muted:#475569;
  --accent:#0284c7; --accent-2:#16a34a; --card:#ffffff; --border:#e2e8f0;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin-inline:auto;padding:24px}
.site-header{position:sticky;top:0;background:rgba(11,18,32,.8);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);z-index:50}
:root.light .site-header{background:rgba(255,255,255,.8)}
.header-wrap{display:flex;align-items:center;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--text)}
.logo{width:32px;height:32px}
.nav{margin-left:auto;display:flex;gap:16px;align-items:center}
.nav a{padding:8px 10px;border-radius:10px}
.nav a:hover{background:var(--bg-elev)}
.theme-toggle,.nav-toggle{background:none;border:1px solid var(--border);color:var(--text);padding:8px 10px;border-radius:10px;cursor:pointer}
.nav-toggle{display:none}
@media (max-width:820px){
  .nav{position:absolute;right:16px;top:64px;flex-direction:column;background:var(--bg-elev);padding:12px;border:1px solid var(--border);box-shadow:var(--shadow);display:none}
  .nav[data-state="open"]{display:flex}
  .nav-toggle{display:inline-block;margin-left:auto}
}
.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center;padding-top:32px}
.hero-text h1{font-size:40px;line-height:1.1;margin:0 0 8px}
.lead{font-size:18px;color:var(--muted);margin:0 0 18px}
.cta{display:flex;gap:12px;margin:12px 0 8px}
.btn{display:inline-block;background:var(--accent);color:white;border:none;padding:10px 14px;border-radius:12px;font-weight:600;box-shadow:var(--shadow)}
.btn.secondary{background:transparent;border:1px solid var(--border);color:var(--text)}
.pill-list{display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:16px 0;list-style:none}
.pill-list li{border:1px solid var(--border);padding:6px 10px;border-radius:999px;color:var(--muted)}
.hero-card{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.hero-card .stat{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:18px;text-align:center}
.hero-card .stat strong{font-size:28px;display:block}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:18px;box-shadow:var(--shadow)}
.cards .card.project h4{margin-top:0}
.text-link{font-weight:600}
.checklist li::marker{content:"✔  "}
.code{background:#0a0f1c;border:1px solid var(--border);padding:14px;border-radius:14px;overflow:auto}
.bullets{line-height:1.9}
.post-list{list-style:none;padding:0}
.post-list li{display:flex;justify-content:space-between;border-bottom:1px dashed var(--border);padding:10px 0}
.muted{color:var(--muted)}
.contact-form input,.contact-form textarea{width:100%;padding:10px;border-radius:12px;border:1px solid var(--border);background:var(--bg-elev);color:var(--text)}
.contact-form label{display:block;font-weight:600;margin:8px 0 6px}
.site-footer{border-top:1px solid var(--border);margin-top:40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:16px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--border);margin-top:12px;padding-top:12px}
.accent{color:var(--accent)}
@media (max-width:960px){
  .hero{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}