:root {
  --bg:#0d0d0f;
  --bg2:#141418;
  --bg3:#1a1a20;
  --border:#2a2a35;
  --text:#e8e8f0;
  --text2:#a0a0b8;
  --text3:#606078;
  --accent:#6c8ef5;
  --accent-dim:#4a63b8;
  --green:#00d68f;
  --amber:#f5a623;
  --sans:"Hanken Grotesk",-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
  --mono:"JetBrains Mono","Fira Code",Consolas,monospace;
  --display:"Martian Mono","JetBrains Mono",monospace;
  --radius:10px;
  --radius-sm:6px;
  --maxw:1120px;
}

*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }

html { scroll-behavior:smooth; }

body {
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  min-height:100vh;
}

body::before {
  content:"";
  position:fixed;
  inset:0;
  background-image:radial-gradient(circle at 1px 1px, rgba(108,142,245,0.10) 1px, transparent 0);
  background-size:32px 32px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
  pointer-events:none;
  z-index:0;
}

body::after {
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(58% 46% at 46% -8%, rgba(108,142,245,0.15), transparent 70%),
    radial-gradient(36% 34% at 88% 8%, rgba(0,214,143,0.07), transparent 70%);
  pointer-events:none;
  z-index:0;
}

a { color:inherit; text-decoration:none; }
a:hover { color:var(--accent); }

.wrap {
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 28px;
  position:relative;
  z-index:1;
}

.mono { font-family:var(--mono); }
.accent { color:var(--accent); }

nav {
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter:blur(14px);
  background:rgba(13,13,15,0.74);
  border-bottom:1px solid var(--border);
}

.nav-inner {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:64px;
}

.brand {
  display:flex;
  align-items:center;
  gap:11px;
  color:var(--text);
  font-family:var(--display);
  font-size:17px;
  font-weight:700;
  letter-spacing:-0.02em;
}

.brand .face {
  color:var(--accent);
  border:1px solid var(--border);
  background:var(--bg2);
  border-radius:var(--radius-sm);
  padding:4px 7px;
  font-family:var(--mono);
  font-size:13px;
  line-height:1;
}

.nav-links {
  display:flex;
  align-items:center;
  gap:26px;
  font-size:14px;
}

.nav-links a {
  color:var(--text2);
  font-weight:500;
}

.nav-links a:hover { color:var(--text); }

.btn {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:40px;
  padding:9px 16px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:var(--bg2);
  color:var(--text);
  font-family:var(--mono);
  font-size:13px;
  font-weight:500;
  transition:border-color .2s, transform .2s, background .2s;
}

.btn:hover {
  border-color:var(--accent-dim);
  color:#fff;
  transform:translateY(-1px);
}

.btn-primary {
  background:var(--accent);
  border-color:var(--accent);
  color:#0a0a12;
  font-weight:700;
}

.btn-primary:hover {
  background:#82a0ff;
  border-color:#82a0ff;
  color:#0a0a12;
}

.hero {
  padding:78px 0 42px;
}

.eyebrow {
  display:inline-flex;
  align-items:center;
  gap:9px;
  margin-bottom:22px;
  padding:6px 13px;
  border:1px solid var(--border);
  border-radius:999px;
  background:rgba(20,20,24,0.62);
  color:var(--text2);
  font-family:var(--mono);
  font-size:12px;
}

.eyebrow .dot {
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--green);
  box-shadow:0 0 10px var(--green);
}

.hero-grid {
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:54px;
  align-items:center;
}

h1 {
  max-width:820px;
  margin-bottom:22px;
  font-family:var(--display);
  font-size:clamp(34px,5vw,58px);
  font-weight:700;
  letter-spacing:-0.035em;
  line-height:1.05;
}

.lede {
  max-width:42em;
  margin-bottom:30px;
  color:var(--text2);
  font-size:18px;
}

.lede b, main b { color:var(--text); font-weight:600; }

.hero-actions {
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}

.signal {
  border:1px solid var(--border);
  border-radius:14px;
  background:linear-gradient(180deg, rgba(20,20,24,0.82), rgba(13,13,15,0.64));
  padding:22px;
}

.signal .label {
  color:var(--text3);
  font-family:var(--mono);
  font-size:12px;
  margin-bottom:12px;
  text-transform:uppercase;
  letter-spacing:.08em;
}

.signal pre {
  color:var(--accent);
  font-family:var(--mono);
  font-size:15px;
  line-height:1.65;
  white-space:pre-wrap;
}

.section {
  padding:54px 0;
}

.sec-tag {
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
  color:var(--accent);
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
}

.sec-tag::before {
  content:"";
  width:22px;
  height:1px;
  background:var(--accent);
}

h2 {
  margin-bottom:16px;
  font-family:var(--display);
  font-size:clamp(25px,3.3vw,36px);
  font-weight:600;
  letter-spacing:-0.03em;
  line-height:1.15;
}

h3 {
  margin:24px 0 9px;
  font-family:var(--display);
  font-size:18px;
  letter-spacing:-0.01em;
}

p {
  color:var(--text2);
  margin-bottom:13px;
}

.grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  margin-top:30px;
}

.card {
  min-height:100%;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:linear-gradient(180deg, rgba(20,20,24,0.74), rgba(16,16,20,0.72));
  padding:22px;
  transition:border-color .2s, transform .2s;
}

a.card:hover {
  border-color:var(--accent-dim);
  color:var(--text);
  transform:translateY(-3px);
}

.card .k {
  display:inline-grid;
  place-items:center;
  width:36px;
  height:36px;
  margin-bottom:14px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:var(--bg);
  color:var(--accent);
  font-family:var(--mono);
  font-size:13px;
}

.card h3 {
  margin:0 0 8px;
  font-size:16px;
}

.card p {
  margin:0;
  font-size:14.5px;
}

.article {
  display:grid;
  grid-template-columns:minmax(0,740px) 280px;
  gap:54px;
  align-items:start;
  padding:24px 0 74px;
}

main {
  min-width:0;
}

main ul, main ol {
  color:var(--text2);
  padding-left:22px;
  margin:0 0 18px;
}

main li {
  margin-bottom:8px;
}

.toc {
  position:sticky;
  top:88px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:rgba(20,20,24,0.62);
  padding:18px;
}

.toc h4 {
  margin-bottom:10px;
  color:var(--text3);
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.08em;
  text-transform:uppercase;
}

.toc a {
  display:block;
  padding:6px 0;
  color:var(--text2);
  font-size:14px;
}

.note {
  border:1px solid rgba(108,142,245,0.36);
  border-radius:var(--radius);
  background:rgba(108,142,245,0.07);
  padding:15px 16px;
  margin:18px 0;
  color:var(--text2);
  font-size:14.5px;
}

.media-showcase {
  margin-top:28px;
  border:1px solid var(--border);
  border-radius:14px;
  background:linear-gradient(180deg, rgba(20,20,24,0.78), rgba(13,13,15,0.72));
  overflow:hidden;
}

.video-frame {
  position:relative;
  background:#050507;
  aspect-ratio:20 / 11;
}

.video-frame video {
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}

.image-frame {
  background:#050507;
  aspect-ratio:1 / 1;
}

.image-frame picture,
.image-frame img {
  display:block;
  width:100%;
  height:100%;
}

.image-frame img {
  object-fit:cover;
}

.media-caption {
  padding:16px 18px 18px;
}

.media-caption h3 {
  margin:0 0 6px;
  font-size:16px;
}

.media-caption p {
  margin:0;
  font-size:14.5px;
}

.prompt-box {
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:#0b0b0e;
  padding:18px;
  color:#cdd6f5;
  font-family:var(--mono);
  font-size:13px;
  line-height:1.7;
  white-space:pre-wrap;
}

.steps {
  counter-reset:step;
  list-style:none;
  padding:0;
}

.steps li {
  counter-increment:step;
  position:relative;
  padding-left:48px;
  margin-bottom:18px;
}

.steps li::before {
  content:counter(step);
  position:absolute;
  left:0;
  top:0;
  display:grid;
  place-items:center;
  width:32px;
  height:32px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:var(--bg2);
  color:var(--accent);
  font-family:var(--mono);
  font-size:13px;
}

.cta-band {
  border:1px solid var(--accent-dim);
  border-radius:14px;
  background:linear-gradient(180deg, rgba(24,27,38,0.86), rgba(13,13,15,0.74));
  padding:30px;
  margin-top:24px;
}

.cta-band p {
  max-width:42em;
}

.cta-band .hero-actions {
  margin-top:18px;
}

footer {
  border-top:1px solid var(--border);
  padding:30px 0;
}

.foot-inner {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  color:var(--text3);
  font-size:13px;
}

.foot-links {
  display:flex;
  gap:20px;
  flex-wrap:wrap;
  font-family:var(--mono);
  font-size:12.5px;
}

.foot-links a { color:var(--text3); }
.foot-links a:hover { color:var(--accent); }

@media (max-width:900px) {
  .hero-grid, .article { grid-template-columns:1fr; }
  .signal { max-width:520px; }
  .toc { position:static; order:-1; }
  .grid { grid-template-columns:repeat(2,1fr); }
}

@media (max-width:640px) {
  .wrap { padding:0 20px; }
  .nav-links .link { display:none; }
  .hero { padding-top:54px; }
  .grid { grid-template-columns:1fr; }
  .signal pre { font-size:13px; }
}