:root{
  --bg:#f6f8fb;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#475569;
  --link:#0369a1;
  --border:rgba(15,23,42,.12);
  --shadow: 0 12px 30px rgba(2,6,23,.10);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1100px 500px at 15% 0%, rgba(125,211,252,.12), transparent 60%),
              radial-gradient(900px 500px at 85% 10%, rgba(34,197,94,.08), transparent 60%),
              var(--bg);
  color:var(--text);
  line-height:1.6;
}

.container{max-width:1100px;margin:0 auto;padding:0 18px}

a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}

.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(246,248,251,.92);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--border);
}
.topbar{display:flex;align-items:center;gap:14px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text)}
.brand-mark{
  width:44px;height:44px;border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(135deg, rgba(125,211,252,.35), rgba(34,197,94,.25));
  border:1px solid var(--border);
  box-shadow: var(--shadow);
  font-weight:800;
}
.brand-title{display:block;font-weight:800;letter-spacing:.3px}
.brand-subtitle{display:block;color:var(--muted);font-size:13px;margin-top:2px}

.nav{margin-left:auto;display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}
.nav-link{
  display:inline-flex;align-items:center;
  padding:9px 10px;border-radius:12px;
  color:var(--text);
  border:1px solid transparent;
  font-size:14px;
}
.nav-link:hover{border-color:var(--border);text-decoration:none;background:rgba(15,23,42,.04)}
.nav-link.active{border-color:rgba(125,211,252,.40);background:rgba(125,211,252,.14)}

.nav-toggle{display:none}
.nav-burger{display:none;margin-left:auto;cursor:pointer;padding:10px;border-radius:12px;border:1px solid var(--border)}
.nav-burger span{display:block;width:22px;height:2px;background:var(--text);margin:5px 0;border-radius:2px}

@media (max-width: 920px){
  .nav{display:none; width:100%; margin:0; padding:10px 0 14px; border-top:1px solid var(--border)}
  .nav-burger{display:block}
  .nav-toggle:checked ~ .nav{display:flex;flex-direction:column;align-items:stretch}
  .nav-link{justify-content:flex-start}
}

.site-main{padding:26px 0 44px}

.page{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:18px;
  box-shadow: var(--shadow);
  padding:22px 18px;
}
.page h1,.page h2,.page h3{line-height:1.25}
.page h2{margin-top:8px}
.page p{margin:10px 0}
.page ul{margin:10px 0 10px 22px}
.page li{margin:6px 0}

.rightpic{float:right;margin:0 0 12px 14px;border-radius:12px;border:1px solid var(--border);box-shadow: var(--shadow)}
img{max-width:100%;height:auto}

details{
  border:1px solid var(--border);
  border-radius:16px;
  padding:12px 14px;
  background:rgba(15,23,42,.03);
  margin:12px 0;
}
summary{cursor:pointer;font-weight:700}
summary p{display:inline;margin:0}

hr{border:0;border-top:1px solid var(--border);margin:16px 0}

/* Simple "bootstrap-ish" helpers for legacy markup */
.row{display:flex;flex-wrap:wrap;gap:16px}
.col-lg-6{flex: 1 1 640px}
.col-md-3{flex: 1 1 230px; min-width: 220px}
.mb-4{margin-bottom:16px}
.mt-4{margin-top:16px}
.card{
  border:1px solid var(--border);
  border-radius:16px;
  background:var(--card);
  padding:14px;
}
.card-body{padding:0}
.h3{font-size:18px;font-weight:800;margin:0}

a[href$=".pdf"]{
  display:inline-flex;align-items:flex-start;gap:10px;
  padding:10px 12px;border-radius:14px;
  border:1px solid var(--border);
  background:rgba(15,23,42,.03);
  margin:6px 0;
}
a[href$=".pdf"] img{width:22px;height:22px;flex:0 0 22px}
a[href$=".doc"], a[href$=".docx"]{
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:14px;
  border:1px solid var(--border);
  background:rgba(15,23,42,.03);
  margin:6px 0;
}

.site-footer{
  border-top:1px solid var(--border);
  background:rgba(246,248,251,.96);
}
.footer-inner{display:flex;gap:18px;justify-content:space-between;align-items:flex-start;padding:18px 0}
.footer-title{font-weight:800}
.footer-note{color:var(--muted);font-size:13px;margin-top:4px}
.footer-meta{color:var(--muted);font-size:13px;text-align:right}