:root{
  --bg: #0b1220;
  --panel: rgba(255,255,255,.06);
  --panel2: rgba(255,255,255,.08);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.72);
  --line: rgba(255,255,255,.12);
  --brand: #38bdf8;
  --brand2:#22c55e;
  --shadow: 0 20px 60px rgba(0,0,0,.35);
  --radius: 18px;
  --max: 960px;
  --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";
}

*{box-sizing:border-box}

body{
  margin:0;
  font-family:var(--sans);
  color:var(--text);
  background:
    radial-gradient(1200px 700px at 10% 0%, rgba(56,189,248,.22), transparent 60%),
    radial-gradient(900px 600px at 90% 10%, rgba(34,197,94,.18), transparent 55%),
    linear-gradient(180deg, #070b14, #0b1220 55%, #070b14);
  min-height:100vh;
}

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

.wrap{max-width:var(--max); margin:0 auto; padding:44px 18px 70px}

/* Top bar */
.top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:18px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(255,255,255,.04);
}

.dot{
  width:10px; height:10px; border-radius:50%;
  background:linear-gradient(135deg, var(--brand), var(--brand2));
  box-shadow:0 0 0 4px rgba(56,189,248,.12);
}

.brand strong{font-size:13px; letter-spacing:.2px}

.top-right{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto; /* ✅ pushes to far right */
}

.pill{
  font-family:var(--mono);
  font-size:12px;
  padding:8px 10px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(255,255,255,.04);
  color:var(--muted);
}

/* Card */
.card{
  margin-top:14px;
  border:1px solid var(--line);
  background:var(--panel);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
}

.hero{
  padding:28px 22px 18px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.06), transparent),
    radial-gradient(700px 260px at 20% 0%, rgba(56,189,248,.18), transparent 60%);
  border-bottom:1px solid var(--line);
}

h1{margin:0 0 10px; font-size:30px; letter-spacing:-.4px}
.sub{margin:0; color:var(--muted); line-height:1.6}

.content{padding:18px 22px 26px}
h2{font-size:18px; margin:22px 0 10px}
p{margin:10px 0; color:var(--text); line-height:1.75}
ul{margin:8px 0 12px 18px; color:var(--text); line-height:1.75}
li{margin:6px 0}

.note{
  margin:14px 0;
  padding:14px;
  border:1px solid var(--line);
  background:var(--panel2);
  border-radius:14px;
  color:var(--muted);
}

.grid{
  display:grid;
  gap:14px;
  grid-template-columns:1fr;
  margin-top:10px;
}
@media(min-width:860px){
  .grid{grid-template-columns:1fr 1fr}
}

.box{
  padding:14px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  border-radius:14px;
}

.box h3{margin:0 0 8px; font-size:14px}
.box p{margin:0; color:var(--muted)}

.footer{
  margin-top:16px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
  justify-content:space-between;
  color:var(--muted);
  font-size:13px;
  padding:14px 4px 0;
}
.footer a{color:var(--muted)}

code{
  font-family:var(--mono);
  font-size:12px;
  padding:2px 6px;
  border-radius:8px;
  border:1px solid var(--line);
  background:rgba(0,0,0,.18);
  color:rgba(255,255,255,.85);
}

/* ===== Theme toggle ===== */
.theme-toggle{
  width:44px;
  height:38px;
  display:grid;
  place-items:center;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  cursor:pointer;
  box-shadow:0 10px 26px rgba(0,0,0,.22);
  position:relative;
}

.theme-toggle .icon{
  font-size:16px;
  line-height:1;
  position:absolute;
  opacity:0;
  transform:scale(.92);
  transition:opacity .18s ease, transform .18s ease;
}

.theme-toggle .moon{ opacity:1; transform:scale(1); }

/* ===== Light theme ===== */
body[data-theme="light"]{
  --bg:#f6f8fc;
  --panel:rgba(0,0,0,.04);
  --panel2:rgba(0,0,0,.06);
  --text:rgba(12,18,32,.92);
  --muted:rgba(12,18,32,.68);
  --line:rgba(12,18,32,.12);
  --shadow:0 18px 45px rgba(0,0,0,.12);

  background:
    radial-gradient(1200px 700px at 10% 0%, rgba(56,189,248,.18), transparent 60%),
    radial-gradient(900px 600px at 90% 10%, rgba(34,197,94,.14), transparent 55%),
    linear-gradient(180deg, #ffffff, #f4f7ff 55%, #ffffff);
}

body[data-theme="light"] .theme-toggle{
  background:rgba(0,0,0,.03);
  box-shadow:0 10px 26px rgba(0,0,0,.10);
}

body[data-theme="light"] .theme-toggle .moon{ opacity:0; transform:scale(.92); }
body[data-theme="light"] .theme-toggle .sun{ opacity:1; transform:scale(1); }