*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: var(--font);
  background: radial-gradient(1200px 600px at 20% -10%, rgba(43,108,176,.25), transparent 60%),
              radial-gradient(900px 500px at 90% 10%, rgba(34,197,94,.10), transparent 55%),
              var(--bg);
  color: var(--text);
}

a{ color: inherit; text-decoration: none; }
a:hover{ text-decoration: none; }

.container{
  width: min(var(--container), calc(100% - 32px));
  margin: 0 auto;
}

.section{ margin-top: var(--space-6); }
.section-head{ margin-bottom: var(--space-3); }
.section-title{ margin:0 0 var(--space-1); font-size: 20px; letter-spacing:.02em; }
.section-note{ margin:0; color: var(--muted); font-size: 14px; line-height: 1.6; }

.muted{ color: var(--muted); }

.site-header{
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  background: rgba(11,15,20,.55);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 14px 0;
}

.brand{
  display:flex;
  gap: 12px;
  align-items:center;
}

.brand-mark{
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display:grid;
  place-items:center;
  background: linear-gradient(135deg, rgba(43,108,176,.9), rgba(34,197,94,.45));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  font-weight: 700;
}

.brand-title{ font-weight: 700; letter-spacing:.03em; }
.brand-subtitle{ color: var(--muted); font-size: 12px; margin-top: 2px; }

.nav{ display:flex; gap: 14px; }
.nav-link{
  padding: 8px 10px;
  border-radius: 10px;
  color: var(--muted);
}
.nav-link:hover{
  background: rgba(255,255,255,.06);
  color: var(--text);
}

.hero{
  margin-top: var(--space-6);
  padding: var(--space-6);
  border-radius: var(--r);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(16,24,38,.85), rgba(15,23,42,.65));
  box-shadow: var(--shadow);
}

.hero-title{ margin:0 0 var(--space-2); font-size: 30px; }
.hero-lead{ margin:0 0 var(--space-4); color: var(--muted); line-height: 1.75; }

.hero-actions{ display:flex; gap: 12px; flex-wrap: wrap; }

.grid{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

@media (max-width: 900px){
  .grid{ grid-template-columns: 1fr; }
  .hero{ padding: var(--space-5); }
}
.site-footer{
  margin: var(--space-6) 0 var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
}
.footer-inner{
  display:flex;
  justify-content:space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
}