:root{
  --bg: #07080b;
  --bg2:#0b0d12;
  --fg: #f6f7fb;
  --muted:#b7bccb;
  --card:#0f121a;
  --card2:#0b0d12;
  --border: rgba(255,255,255,.12);

  --accent:#ff2d2d;          /* Blood Dragon red */
  --accentSoft: rgba(255,45,45,.20);
  --shadow: 0 18px 55px rgba(0,0,0,.55);
  --radius: 18px;

  --max: 1120px;
}

html[data-theme="light"]{
  --bg:#f7f8fb;
  --bg2:#ffffff;
  --fg:#0b0d12;
  --muted:#3f465a;
  --card:#ffffff;
  --card2:#f2f4f9;
  --border: rgba(0,0,0,.12);
  --shadow: 0 18px 55px rgba(16,24,40,.18);
  --accentSoft: rgba(255,45,45,.16);
}

*{box-sizing:border-box}
html,body{height:100%}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--fg);
  background:
    radial-gradient(1200px 700px at 15% 12%, rgba(255,45,45,.12), transparent 60%),
    radial-gradient(900px 650px at 85% 18%, rgba(255,45,45,.08), transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
  font: 16px/1.55 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
  overflow-x:hidden;
}

a{color:inherit}
code, pre{
  font: 13px/1.55 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono","Courier New", monospace;
}
pre{
  border:1px solid var(--border);
  border-radius: 14px;
  padding:12px;
  background: color-mix(in oklab, var(--card) 76%, transparent);
  overflow:auto;
}

.skip{
  position:absolute; left:-999px; top:10px;
  background:var(--card);
  border:1px solid var(--border);
  color:var(--fg);
  padding:10px 12px;
  border-radius:12px;
  z-index:9999;
}
.skip:focus{left:10px}

.fx::before{
  content:"";
  position:fixed; inset:0;
  background:
    linear-gradient(to right, rgba(255,255,255,.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 46px 46px;
  opacity:.22;
  pointer-events:none;
  mix-blend-mode: overlay;
}
.fx::after{
  content:"";
  position:fixed; inset:-2px;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0,0,0,0) 0px,
    rgba(0,0,0,0) 2px,
    rgba(0,0,0,.14) 3px
  );
  opacity: .28;
  pointer-events:none;
}
html[data-theme="light"] .fx::after{ opacity:.14; }

.wrap{max-width:var(--max); margin:0 auto; padding:18px 18px 64px}

header{
  position:sticky; top:0; z-index:50;
  backdrop-filter: blur(10px);
  background: color-mix(in oklab, var(--bg) 76%, transparent);
  border-bottom: 1px solid var(--border);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  gap:14px;
  max-width:var(--max); margin:0 auto; padding:14px 18px;
}
.brand{
  display:flex; align-items:center; gap:10px;
  text-decoration:none;
}
.mark{
  width:12px; height:12px; border-radius:4px;
  background:var(--accent);
  box-shadow: 0 0 0 6px var(--accentSoft), 0 0 22px rgba(255,45,45,.35);
}
.brand b{letter-spacing:.2px}
.brand span{color:var(--muted); font-size:13px}

.navLinks{display:flex; align-items:center; gap:6px}
.navLinks a{
  text-decoration:none;
  color:var(--muted);
  padding:10px 10px;
  border-radius:12px;
}
.navLinks a:hover{color:var(--fg); background: color-mix(in oklab, var(--card) 70%, transparent)}
.navRight{display:flex; align-items:center; gap:10px}

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:10px;
  padding:11px 14px;
  border-radius:14px;
  border:1px solid var(--border);
  background: color-mix(in oklab, var(--card) 72%, transparent);
  color:var(--fg);
  text-decoration:none;
  cursor:pointer;
  user-select:none;
  transition: transform .12s ease, box-shadow .12s ease, border-color .12s ease;
}
.btn:hover{
  transform: translateY(-1px);
  border-color: color-mix(in oklab, var(--accent) 35%, var(--border));
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
}
.btn.primary{
  border-color: color-mix(in oklab, var(--accent) 55%, var(--border));
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--accent) 18%, var(--card)) 0%, var(--card) 100%);
}
.btn.small{padding:9px 12px; border-radius:12px; font-size:14px}

.panel{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, color-mix(in oklab, var(--card) 92%, transparent), color-mix(in oklab, var(--card2) 88%, transparent));
  box-shadow: var(--shadow);
  overflow:hidden;
  position:relative;
}
.panel.pad{padding:20px}

.kicker{
  display:inline-flex; align-items:center; gap:10px;
  color:var(--muted);
  font-size:13px;
  letter-spacing:.14em;
  text-transform:uppercase;
}
.kicker i{
  width:8px; height:8px; border-radius:50%;
  background:var(--accent);
  box-shadow: 0 0 0 6px var(--accentSoft);
  display:inline-block;
}

h1{
  margin:10px 0 10px;
  font-size:42px;
  line-height:1.06;
  letter-spacing:-.02em;
}
h2{margin:0; font-size:20px}
h3{margin:0 0 8px; font-size:16px}

.lead{color:var(--muted); font-size:17px; margin:0 0 16px}
.fine{font-size:13px; color:var(--muted)}
.muted{color:var(--muted)}

.hero{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap:18px;
  align-items:stretch;
  margin-top:16px;
}
@media (max-width: 920px){
  .hero{grid-template-columns:1fr}
  .navLinks{display:none}
}

.chips{display:flex; flex-wrap:wrap; gap:8px; margin:12px 0 18px}
.chip{
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 10px;
  border-radius:999px;
  border:1px solid var(--border);
  background: color-mix(in oklab, var(--card) 82%, transparent);
  color: color-mix(in oklab, var(--fg) 86%, var(--muted));
  font-size:13px;
  white-space:nowrap;
}
.chip b{color:var(--fg); font-weight:600}

.cta{display:flex; flex-wrap:wrap; gap:10px; margin-top:8px}

.sectionTitle{
  display:flex; align-items:flex-end; justify-content:space-between;
  gap:10px;
  margin:26px 0 12px;
}
.sectionTitle p{margin:0; color:var(--muted); font-size:14px}

.grid{
  display:grid;
  grid-template-columns: repeat(12, 1fr);
  gap:14px;
}
.col-12{grid-column: span 12}
.col-7{grid-column: span 7}
.col-5{grid-column: span 5}
.col-6{grid-column: span 6}
.col-4{grid-column: span 4}
@media (max-width: 920px){
  .col-7,.col-5,.col-6,.col-4{grid-column: span 12}
}

.card{
  border:1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, color-mix(in oklab, var(--card) 92%, transparent), color-mix(in oklab, var(--card2) 88%, transparent));
  padding:18px;
  position:relative;
  overflow:hidden;
}
.card::before{
  content:"";
  position:absolute; inset:-1px;
  background: radial-gradient(500px 240px at 20% 10%, rgba(255,45,45,.14), transparent 60%);
  opacity:.9;
  pointer-events:none;
}
html[data-theme="light"] .card::before{opacity:.55}
.card > *{position:relative}
.card p{margin:0; color:var(--muted)}
.card ul{margin:12px 0 0; padding-left:18px; color:var(--muted)}
.card li{margin:6px 0}

details{
  margin-top:12px;
  border-top: 1px solid var(--border);
  padding-top:12px;
}
summary{
  cursor:pointer;
  color: var(--fg);
  list-style:none;
  display:flex; align-items:center; gap:10px;
  user-select:none;
}
summary::-webkit-details-marker{display:none}
.caret{
  width:10px; height:10px;
  border-right:2px solid var(--muted);
  border-bottom:2px solid var(--muted);
  transform: rotate(-45deg);
  margin-top:1px;
  transition: transform .12s ease;
}
details[open] .caret{transform: rotate(45deg)}

footer{
  margin-top:32px;
  padding-top:18px;
  border-top:1px solid var(--border);
  color:var(--muted);
  display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between;
  gap:10px;
}

@media (prefers-reduced-motion: reduce){
  .btn{transition:none}
  .btn:hover{transform:none}
  .fx::after{opacity:.18}
}