:root{
  --bg0:#f5f7fb;
  --bg1:#ffffff;
  --card:#ffffff;
  --card2:#f0f3fa;
  --stroke:#e5e7eb;
  --text:#0f172a;
  --muted:#475569;
  --muted2:#64748b;
  --accent:#2563eb;
  --accent2:#7c3aed;
  --accent3:#22c55e;
  --warn:#f59e0b;
  --danger:#ef4444;
  --shadow: 0 12px 30px rgba(0,0,0,.12);
  --radius: 18px;
  --radius2: 24px;
  --max: 1080px;
}

*{ box-sizing:border-box; }
html, body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% 10%, rgba(124,58,237,.12), transparent 60%),
    radial-gradient(1000px 560px at 90% 20%, rgba(37,99,235,.10), transparent 60%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  line-height: 1.6;
}

a{ color: #2563eb; text-decoration: none; }
a:hover{ text-decoration: underline; }

.container{
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.nav{
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(255,255,255,.85);
  border-bottom: 1px solid var(--stroke);
}

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

.brand{
  display:flex;
  align-items:center;
  gap: 12px;
  min-width: 220px;
}
.brand img{
  width: 40px;
  height: 40px;
  border-radius: 12px;
  box-shadow: 0 6px 14px rgba(0,0,0,.15);
  background: white;
}
.brand .name{
  font-weight: 800;
  letter-spacing: .2px;
}
.brand .tag{
  font-size: 12px;
  color: var(--muted2);
  margin-top: -2px;
}

.nav-links{
  display:flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content:flex-end;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: #ffffff;
  color: var(--text);
  font-weight: 650;
  font-size: 14px;
}
.pill:hover{ background: #f1f5f9; text-decoration:none; }

.hero{
  padding: 56px 0 26px;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 22px;
  align-items:center;
}
@media (max-width: 900px){
  .hero-grid{ grid-template-columns: 1fr; }
}

.kicker{
  display:inline-flex;
  align-items:center;
  gap: 10px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: #f8fafc;
  color: var(--muted);
  font-size: 13px;
}
.kicker b{ color: var(--text); }

h1{
  font-size: clamp(32px, 5vw, 54px);
  margin: 14px 0 10px;
  line-height: 1.05;
  letter-spacing: -0.6px;
}
.lead{
  font-size: 16px;
  color: var(--muted);
  max-width: 60ch;
  margin: 0 0 18px;
}
.actions{
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  font-weight: 750;
  border: 1px solid var(--stroke);
  background: #ffffff;
  color: var(--text);
  box-shadow: 0 8px 18px rgba(0,0,0,.12);
}
.btn:hover{ background: #f1f5f9; text-decoration:none; }
.btn.primary{
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: white;
  border: none;
}
.btn.primary:hover{
  filter: brightness(1.05);
}
.btn.ghost{
  background: transparent;
  box-shadow: none;
}

.card{
  background: linear-gradient(180deg, var(--card), var(--card2));
  border: 1px solid var(--stroke);
  border-radius: var(--radius2);
  box-shadow: var(--shadow);
}
.hero-card{
  padding: 18px;
  overflow:hidden;
  position: relative;
}
.hero-card-inner{
  position: relative;
  display:flex;
  gap: 14px;
  align-items:center;
}
.hero-card-inner img{
  width: 78px;
  height: 78px;
  border-radius: 20px;
  background:white;
  border: 1px solid var(--stroke);
}
.hero-card h3{
  margin:0;
  font-size: 16px;
}
.hero-card p{
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13.5px;
}

.section{
  padding: 22px 0;
}
.grid{
  display:grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
}
.col-4{ grid-column: span 4; }
.col-6{ grid-column: span 6; }
.col-8{ grid-column: span 8; }
.col-12{ grid-column: span 12; }
@media (max-width: 900px){
  .col-4,.col-6,.col-8{ grid-column: span 12; }
}

.feature{
  padding: 16px;
}
.feature h3{
  margin: 0 0 8px;
  font-size: 16px;
}
.feature p{
  margin:0;
  color: var(--muted);
  font-size: 14px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: #f8fafc;
  color: var(--muted);
  font-weight: 650;
  font-size: 12px;
  margin-bottom: 10px;
}
hr.sep{
  border:0;
  border-top: 1px solid var(--stroke);
  margin: 20px 0;
}

.prose{
  padding: 22px;
}
.prose h1{
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.12;
  margin: 0 0 10px;
}
.prose h2{
  font-size: 18px;
  margin: 24px 0 10px;
}
.prose h3{
  font-size: 16px;
  margin: 18px 0 8px;
  color: var(--text);
}
.prose p, .prose li{
  color: var(--muted);
}
.prose .meta{
  display:flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  color: var(--muted2);
  font-size: 13px;
  margin-top: 8px;
}
.prose ul{ padding-left: 18px; }

.callout{
  padding: 14px 14px;
  border-radius: 16px;
  border: 1px solid var(--stroke);
  background: #f8fafc;
  color: var(--muted);
}
.callout strong{ color: var(--text); }

.footer{
  padding: 26px 0 46px;
  color: var(--muted2);
  font-size: 13px;
}
.footer .row{
  display:flex;
  gap: 14px;
  justify-content:space-between;
  align-items:flex-start;
  flex-wrap: wrap;
}
.small-links{
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
}
.small-links a{ color: var(--muted); }
.small-links a:hover{ color: var(--text); }

kbd{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  padding: 2px 6px;
  border-radius: 8px;
  border: 1px solid var(--stroke);
  background: #f8fafc;
  color: var(--text);
}