:root{
  --bg:#0b0e14;
  --card:#121826;
  --text:#e7eaf0;
  --muted:#a9b0c3;
  --border:#243045;
  --accent:#7aa2ff;
  --accent2:#7ef0c1;
}

*{box-sizing:border-box}
html,body{min-height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: radial-gradient(1200px 600px at 10% 0%, rgba(122,162,255,.18), transparent 60%),
              radial-gradient(900px 500px at 90% 10%, rgba(126,240,193,.12), transparent 55%),
              var(--bg);
  color:var(--text);
  line-height:1.6;
}

a{color:inherit}
.container{max-width:980px;margin:0 auto;padding:28px 18px 52px}
.hero{
  padding:22px 18px 18px;
  border:1px solid var(--border);
  border-radius:18px;
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
}
.badge{
  display:inline-block;
  padding:6px 10px;
  border:1px solid var(--border);
  border-radius:999px;
  color:var(--muted);
  font-size:13px;
}
h1{
  margin:14px 0 8px;
  font-size:32px;
  letter-spacing:-0.02em;
}
.subtitle{margin:0;color:var(--muted)}

.card{
  margin-top:16px;
  padding:18px;
  border:1px solid var(--border);
  border-radius:18px;
  background: rgba(18,24,38,.72);
  backdrop-filter: blur(6px);
}
h2{margin:0 0 10px;font-size:18px}
ul,ol{margin:10px 0 0 18px;color:var(--muted)}
p{margin:10px 0;color:var(--muted)}
.note{margin-top:12px;font-size:14px}

.grid{
  margin-top:12px;
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap:12px;
}
.item{
  text-decoration:none;
  padding:14px;
  border:1px solid var(--border);
  border-radius:16px;
  background: rgba(255,255,255,.02);
  transition: transform .12s ease, border-color .12s ease;
}
.item:hover{transform: translateY(-2px); border-color: rgba(122,162,255,.45)}
.item-title{font-weight:650;color:var(--text)}
.item-desc{margin-top:6px;color:var(--muted);font-size:14px}

details{
  border:1px solid var(--border);
  border-radius:14px;
  padding:10px 12px;
  margin-top:10px;
  background: rgba(255,255,255,.02);
}
summary{cursor:pointer;color:var(--text);font-weight:600}
.footer{margin-top:18px;color:var(--muted);font-size:13px;text-align:center}

strong{color:var(--text)}


.prompt-pre {
  margin: 12px 0 0;
  padding: 12px;
  overflow: auto;
  max-height: 520px;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.08);
  background: rgba(0,0,0,0.03);
}

.prompt-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.92rem;
  line-height: 1.45;
  white-space: pre;
}

table{
  display: block;
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}