:root{
  --bg: #0b1020;
  --bg2:#0f1730;
  --card:#101a33;
  --text:#e7eefc;
  --muted:#a9b7d6;
  --border: rgba(255,255,255,.10);
  --accent:#00b9e7;
  --accent2:#0092af;
  --shadow: 0 10px 35px rgba(0,0,0,.35);
  --radius: 18px;
  --max: 1100px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}
html[data-theme="light"]{
  --bg:#f6f8ff;
  --bg2:#eef3ff;
  --card:#ffffff;
  --text:#0b1020;
  --muted:#3d4a63;
  --border: rgba(0,0,0,.10);
  --shadow: 0 10px 30px rgba(0,0,0,.10);
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family: var(--sans);
  color:var(--text);
  background: radial-gradient(1200px 600px at 20% -10%, rgba(0,185,231,.25), transparent 60%),
              radial-gradient(900px 500px at 85% 10%, rgba(0,146,175,.20), transparent 55%),
              linear-gradient(180deg, var(--bg), var(--bg2));
  min-height:100vh;
}
a{color:inherit; text-decoration:none}
.container{max-width:var(--max); margin:0 auto; padding:0 18px}
.skip{
  position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden;
}
.skip:focus{
  left:18px; top:18px; width:auto; height:auto; padding:10px 12px;
  background:var(--card); border:1px solid var(--border); border-radius:12px;
  z-index:9999;
}
.topbar{
  position:sticky; top:0; z-index:50;
  backdrop-filter: blur(10px);
  background: rgba(10,14,28,.65);
  border-bottom:1px solid var(--border);
}
html[data-theme="light"] .topbar{ background: rgba(246,248,255,.75); }
.topbar-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 0;
  gap:14px;
}
.brand{display:flex; align-items:center; gap:10px; min-width:220px}
.logo{display:flex; align-items:center; gap:10px}
.logo-mark{
  width:34px; height:34px; display:grid; place-items:center;
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  border-radius: 12px; font-weight:800;
  box-shadow: var(--shadow);
}
.logo-text{font-weight:800; letter-spacing:.2px}
.pronounce{color:var(--muted); font-size:.9rem}
.nav{display:flex; gap:12px; align-items:center; flex-wrap:wrap; justify-content:center}
.navlink{
  padding:8px 10px; border-radius:12px;
  border:1px solid transparent;
  color:var(--muted);
}
.navlink:hover{
  color:var(--text);
  border-color: var(--border);
  background: rgba(255,255,255,.04);
}
.theme-toggle{
  border:1px solid var(--border);
  border-radius: 12px;
  padding:8px 10px;
  background: rgba(255,255,255,.03);
  color: var(--text);
  cursor:pointer;
}
.theme-toggle:hover{ background: rgba(255,255,255,.06); }

.hero{padding:56px 0 34px}
.hero-inner{display:grid; grid-template-columns: 1.3fr .9fr; gap:22px; align-items:center}
.hero-text h1{font-size: clamp(2.2rem, 3.5vw, 3.2rem); margin:0 0 10px}
.lead{font-size:1.15rem; color:var(--muted); margin:0 0 14px; line-height:1.5}
.pill-row{display:flex; flex-wrap:wrap; gap:8px; margin:14px 0 18px}
.pill{
  padding:6px 10px; border-radius:999px;
  background: rgba(255,255,255,.05);
  border:1px solid var(--border);
  color: var(--muted);
  font-size:.92rem;
}
.cta-row{display:flex; gap:10px; flex-wrap:wrap; margin:18px 0 10px}
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:10px 14px;
  border-radius: 14px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.03);
  font-weight:700;
}
.btn.primary{
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  color:#07111f;
}
.btn.primary:hover{ filter: brightness(1.05); }
.btn.ghost:hover{ background: rgba(255,255,255,.06); }
.small{font-size:.95rem}

.hero-card .card{
  background: rgba(255,255,255,.04);
  border:1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.card-head{
  padding:14px 16px;
  border-bottom:1px solid var(--border);
  color: var(--muted);
  font-weight:700;
}
.card-foot{
  padding:12px 16px;
  border-top:1px solid var(--border);
}
.textlink{color:var(--accent); font-weight:700}
.code{
  margin:0; padding:14px 16px;
  font-family: var(--mono);
  font-size:.95rem;
  overflow:auto;
}
.code code{color:var(--text)}
.section{padding:30px 0}
.section.alt{background: rgba(255,255,255,.02); border-top:1px solid var(--border); border-bottom:1px solid var(--border)}
.grid3{display:grid; grid-template-columns: repeat(3, 1fr); gap:16px}
.grid2{display:grid; grid-template-columns: repeat(2, 1fr); gap:16px}
.feature{
  background: rgba(255,255,255,.03);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:16px;
}
.feature h2{margin:0 0 8px; font-size:1.15rem}
.feature p{margin:0; color:var(--muted); line-height:1.55}
.link-grid{display:grid; grid-template-columns: repeat(3, 1fr); gap:14px; margin-top:14px}
.linkcard{
  display:block;
  background: rgba(255,255,255,.03);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:16px;
}
.linkcard:hover{background: rgba(255,255,255,.05)}
.linkcard-title{font-weight:800}
.linkcard-sub{color:var(--muted); margin-top:6px}

.pagehead{padding:34px 0 10px}
.pagehead h1{margin:0 0 6px; font-size:2rem}
.pagehead p{margin:0; color:var(--muted)}
.card.block{
  background: rgba(255,255,255,.03);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:16px;
}
.list{color:var(--muted); line-height:1.7}
.list code{font-family:var(--mono)}
.prose p{color:var(--muted); line-height:1.7}
.prose h2{margin-top:18px}

.footer{
  margin-top: 30px;
  padding: 22px 0 30px;
  border-top:1px solid var(--border);
  background: rgba(0,0,0,.06);
}
html[data-theme="light"] .footer{ background: rgba(255,255,255,.65); }
.footer-inner{display:flex; justify-content:space-between; gap:14px; align-items:flex-start; flex-wrap:wrap}
.footer-title{font-weight:800}
.footer-links{margin-top:8px; color:var(--muted)}
.footer-links a{color:var(--muted)}
.footer-links a:hover{color:var(--text)}
.muted{color:var(--muted)}
.dot{margin:0 8px; color:var(--muted)}

@media (max-width: 900px){
  .hero-inner{grid-template-columns: 1fr}
  .brand{min-width:auto}
  .grid3,.grid2,.link-grid{grid-template-columns:1fr}
}