:root {
  --bg: #0d1117;
  --bg-2: #11161e;
  --card: #161b22;
  --line: #30363d;
  --fg: #e6edf3;
  --dim: #8b949e;
  --muted: #6b7280;
  --accent: #ffcb05;       /* Pokémon yellow */
  --accent-2: #3b4cca;     /* Pokémon blue */
  --green: #4ade80;
  --red: #ee1515;
  --magenta: #d946ef;
  --link: #79c0ff;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg); color: var(--fg);
  font: 16px/1.65 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  font-feature-settings: "ss01", "ss02";
  -webkit-font-smoothing: antialiased;
}

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

/* nav */
nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 28px;
  background: rgba(13, 17, 23, .85);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 15px;
}
.brand .logo {
  color: var(--accent); font-size: 14px;
}
.brand .name {
  font-family: 'Menlo', monospace;
  letter-spacing: .02em;
}
.links {
  display: flex; gap: 18px; align-items: center;
  font-size: 14px;
}
.links a { color: var(--dim); }
.links a:hover { color: var(--fg); text-decoration: none; }
.links .ghbtn {
  background: var(--card); border: 1px solid var(--line);
  padding: 6px 14px; border-radius: 6px; color: var(--fg);
  font-weight: 600;
}
.links .ghbtn:hover { background: var(--bg-2); border-color: var(--accent); color: var(--accent); }

@media (max-width: 720px) {
  .links a:not(.ghbtn) { display: none; }
}

/* hero */
.hero {
  max-width: 920px; margin: 0 auto;
  padding: 80px 24px 40px;
  text-align: center;
}
.hero h1 {
  font-size: 56px; line-height: 1.05;
  margin: 0 0 16px;
  letter-spacing: -.02em;
  font-weight: 800;
}
.hero h1 .go {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .sub {
  font-size: 19px; color: var(--dim);
  max-width: 680px; margin: 0 auto 36px;
  line-height: 1.55;
}
.video-wrap {
  margin: 0 auto; max-width: 900px;
  border: 1px solid var(--line); border-radius: 12px; overflow: hidden;
  box-shadow: 0 0 60px rgba(255, 203, 5, .06), 0 0 0 1px rgba(255, 203, 5, .15);
  background: black;
}
.video-wrap video { display: block; width: 100%; height: auto; }
.caption {
  margin-top: 14px; color: var(--dim); font-size: 13px;
  font-family: 'Menlo', monospace;
}
.caption b { color: var(--green); }

.cta-row {
  display: flex; gap: 12px; justify-content: center;
  margin-top: 32px; flex-wrap: wrap;
}

.live-banner {
  margin: 24px auto 0; max-width: 720px;
  padding: 10px 18px;
  background: rgba(74, 222, 128, .10);
  border: 1px solid var(--green);
  border-radius: 8px;
  font-size: 13px; color: var(--green);
  text-align: center;
}
.live-banner b { color: white; font-weight: 700; }
.btn {
  display: inline-block;
  padding: 10px 20px; border-radius: 8px;
  background: var(--card); border: 1px solid var(--line);
  color: var(--fg); font-weight: 600; font-size: 14px;
  transition: border-color .15s, background .15s, color .15s;
}
.btn:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.btn.primary {
  background: var(--accent); color: black; border-color: var(--accent);
}
.btn.primary:hover { background: white; border-color: white; color: black; }
.btn.ghost { background: transparent; }

/* main sections */
main { max-width: 880px; margin: 0 auto; padding: 24px; }
section { padding: 40px 0; border-top: 1px solid var(--line); }
section:first-child { border-top: 0; }
h2 {
  font-size: 26px; font-weight: 800; letter-spacing: -.01em;
  margin: 0 0 16px;
}
h3 {
  font-size: 17px; font-weight: 700; margin: 24px 0 8px;
  color: var(--accent);
}
p { margin: 12px 0; }
ul, ol { padding-left: 22px; margin: 12px 0; }
li { margin: 6px 0; }

.callout {
  background: rgba(255, 203, 5, .08);
  border-left: 3px solid var(--accent);
  padding: 10px 16px; margin: 20px 0;
  font-style: italic; font-size: 17px;
  border-radius: 0 6px 6px 0;
}
.muted { color: var(--dim); font-size: 14px; }

/* impossible reasons */
.reasons li { margin: 10px 0; }

/* architecture diagram */
.diagram {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px; margin: 16px 0;
  font: 12px/1.4 'Menlo', monospace;
  color: var(--fg);
  overflow-x: auto;
  white-space: pre;
}

.prim-table {
  width: 100%; border-collapse: collapse; margin: 16px 0;
  background: var(--card); border-radius: 8px; overflow: hidden;
  border: 1px solid var(--line);
}
.prim-table th, .prim-table td {
  padding: 10px 14px; text-align: left;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.prim-table th {
  background: var(--bg-2); color: var(--accent);
  font-weight: 700; font-size: 12px;
  text-transform: uppercase; letter-spacing: .08em;
}
.prim-table tr:last-child td { border-bottom: 0; }
.prim-table code {
  background: var(--bg); padding: 2px 6px; border-radius: 4px;
  font-size: 12px; color: var(--green);
}

/* code blocks */
pre {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px; margin: 14px 0;
  overflow-x: auto;
  font: 12px/1.55 'Menlo', monospace;
}
pre code { color: var(--fg); background: transparent; padding: 0; }
code {
  font: .9em 'Menlo', monospace;
  background: var(--bg-2); padding: 2px 5px; border-radius: 4px;
  color: var(--accent);
}

/* stats */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
  margin: 20px 0;
}
.stat {
  background: var(--card); border: 1px solid var(--line); border-radius: 8px;
  padding: 16px; text-align: center;
}
.stat .big {
  font-size: 32px; font-weight: 800; color: var(--accent);
  font-family: 'Menlo', monospace;
}
.stat .big.green { color: var(--green); }
.stat .lbl {
  font-size: 11px; color: var(--dim);
  text-transform: uppercase; letter-spacing: .12em;
  margin-top: 4px;
}
@media (max-width: 720px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
}

.screenshot {
  width: 100%; border-radius: 8px;
  border: 1px solid var(--line); margin: 16px 0;
  display: block;
}

.milestones {
  list-style: none; padding: 0;
  counter-reset: ms;
}
.milestones li {
  counter-increment: ms;
  padding: 10px 14px 10px 50px; margin: 6px 0;
  background: var(--card); border: 1px solid var(--line);
  border-radius: 6px; position: relative;
  font-size: 14px;
}
.milestones li::before {
  content: counter(ms);
  position: absolute; left: 12px; top: 10px;
  width: 26px; height: 26px;
  background: var(--accent); color: black;
  border-radius: 50%; text-align: center; line-height: 26px;
  font-weight: 800; font-family: 'Menlo', monospace; font-size: 13px;
}

/* related */
.related li {
  margin: 10px 0; line-height: 1.5;
}

/* footer */
footer {
  max-width: 880px; margin: 40px auto 60px;
  padding: 20px 24px; border-top: 1px solid var(--line);
  text-align: center;
  color: var(--dim); font-size: 13px;
}
footer div { margin: 4px 0; }

/* responsive */
@media (max-width: 720px) {
  .hero h1 { font-size: 38px; }
  .hero .sub { font-size: 16px; }
  h2 { font-size: 22px; }
}