:root {
  --bg: #000;
  --cyan: #00e5ff;
  --cyan-hot: #33ecff;
  --pink: #ff004d;
  --green: #00e436;
  --amber: #fbbf24;
  --text: #e0e0e0;
  --muted: #808080;
  --panel: rgba(0,229,255,0.04);
  --panel-hi: rgba(0,229,255,0.12);
  --b-dim: rgba(0,229,255,0.15);
  --b-mid: rgba(0,229,255,0.20);
  --b-hot: rgba(0,229,255,0.45);
  --display: 'Orbitron', system-ui, sans-serif;
  --mono: 'Share Tech Mono', ui-monospace, Consolas, monospace;
}
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* CRT scanlines */
body::before {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.18) 2px, rgba(0,0,0,0.18) 4px);
  z-index: 100;
}
/* CRT vignette */
body::after {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 0%, rgba(0,0,0,0.45) 100%);
  z-index: 99;
}

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 40px 24px 80px;
  position: relative;
  z-index: 1;
}

/* ------------------------------------------------------------------ */
/* Header                                                             */
/* ------------------------------------------------------------------ */
header { margin-bottom: 32px; position: relative; }

.brand-tag {
  font-family: var(--mono);
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.2em;
  display: block;
  margin-bottom: 8px;
  opacity: 0.85;
}

.header-actions {
  position: absolute;
  top: 0;
  right: 0;
  display: flex;
  gap: 8px;
}
.header-actions a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px solid var(--b-hot);
  color: var(--cyan);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border-radius: 3px;
  background: rgba(0,229,255,0.04);
  transition: background 0.15s, box-shadow 0.15s, color 0.15s;
}
.header-actions a:hover {
  background: var(--cyan);
  color: var(--bg);
  box-shadow: 0 0 20px rgba(0,229,255,0.4);
}
.header-actions a .arrow { font-size: 10px; opacity: 0.7; }

header h1 {
  font-family: var(--display);
  font-weight: 900;
  font-size: 48px;
  letter-spacing: 0.12em;
  margin: 0 0 8px;
  color: var(--cyan);
  text-shadow: 0 0 20px rgba(0,229,255,0.5), 0 0 40px rgba(0,229,255,0.2);
  text-transform: uppercase;
}
header .tag {
  margin: 0 0 18px;
  font-family: var(--mono);
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.05em;
}
header .tag span { color: var(--cyan); }

/* On-ramp nav */
.onramp-nav {
  margin-top: 18px;
  padding: 10px 0;
  border-top: 1px solid var(--b-dim);
  border-bottom: 1px solid var(--b-dim);
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.onramp-nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 4px 10px;
  border: 1px solid transparent;
  border-radius: 3px;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.onramp-nav a::before { content: "// "; opacity: 0.5; }
.onramp-nav a:hover {
  color: var(--cyan);
  border-color: var(--b-mid);
  background: rgba(0,229,255,0.04);
}
.onramp-nav a.active {
  color: var(--cyan);
  border-color: var(--b-hot);
  background: rgba(0,229,255,0.06);
}

@media (max-width: 600px) {
  .header-actions { position: static; margin-bottom: 14px; }
  .wrap { padding: 24px 16px 60px; }
  header h1 { font-size: 32px; letter-spacing: 0.08em; }
}

/* ------------------------------------------------------------------ */
/* Prose (rendered markdown)                                          */
/* ------------------------------------------------------------------ */
.prose { margin-top: 8px; }

.prose h1, .prose h2, .prose h3, .prose h4, .prose h5, .prose h6 {
  font-family: var(--display);
  color: var(--cyan);
  letter-spacing: 0.08em;
  margin: 36px 0 14px;
  text-shadow: 0 0 12px rgba(0,229,255,0.25);
}
.prose h1 {
  font-weight: 900;
  font-size: 30px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--b-mid);
  padding-bottom: 10px;
}
.prose h2 {
  font-weight: 700;
  font-size: 22px;
  text-transform: uppercase;
}
.prose h2::before {
  content: "// ";
  color: var(--cyan);
  opacity: 0.5;
}
.prose h3 {
  font-weight: 500;
  font-size: 17px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan-hot);
}
.prose h3::before {
  content: "> ";
  opacity: 0.6;
}
.prose h4 {
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
}

.prose p {
  margin: 0 0 14px;
  color: var(--text);
}

.prose a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dotted rgba(0,229,255,0.4);
  transition: color 0.15s, border-color 0.15s, text-shadow 0.15s;
}
.prose a:hover {
  color: var(--cyan-hot);
  border-bottom-color: var(--cyan-hot);
  text-shadow: 0 0 6px rgba(0,229,255,0.5);
}

.prose ul, .prose ol {
  padding-left: 24px;
  margin: 0 0 14px;
}
.prose ul li, .prose ol li { margin-bottom: 6px; }
.prose ul li::marker { color: var(--cyan); }
.prose ol li::marker { color: var(--cyan); font-family: var(--mono); }

.prose strong { color: var(--cyan-hot); font-weight: 700; }
.prose em { color: var(--amber); font-style: normal; }

/* Inline code */
.prose code {
  background: rgba(0,229,255,0.08);
  border: 1px solid var(--b-dim);
  border-radius: 2px;
  padding: 1px 6px;
  color: var(--cyan-hot);
  font-family: var(--mono);
  font-size: 13px;
}

/* Code blocks */
.prose pre {
  background: rgba(0,0,0,0.6);
  border: 1px solid var(--b-mid);
  border-left: 2px solid var(--cyan);
  border-radius: 3px;
  padding: 16px 18px;
  overflow-x: auto;
  margin: 0 0 18px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
  position: relative;
}
.prose pre::before {
  content: "// shell";
  position: absolute;
  top: 6px;
  right: 10px;
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--muted);
  text-transform: uppercase;
}
.prose pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--text);
  font-size: inherit;
}

/* Blockquotes — used in the on-ramp for callouts */
.prose blockquote {
  margin: 0 0 18px;
  padding: 14px 18px;
  background: rgba(0,229,255,0.04);
  border-left: 2px solid var(--cyan);
  border-radius: 0 3px 3px 0;
  color: var(--text);
  font-size: 14px;
  line-height: 1.65;
}
.prose blockquote strong:first-child {
  color: var(--cyan);
  letter-spacing: 0.05em;
}
.prose blockquote p:last-child { margin-bottom: 0; }

/* Horizontal rules */
.prose hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--b-hot), transparent);
  margin: 36px 0;
}

/* ------------------------------------------------------------------ */
/* Tables (heavy usage across all on-ramp pages)                       */
/* ------------------------------------------------------------------ */
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 22px;
  font-family: var(--mono);
  font-size: 13px;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--b-dim);
  border-radius: 3px;
  overflow: hidden;
}
.prose thead {
  background: rgba(0,229,255,0.06);
}
.prose th {
  text-align: left;
  padding: 10px 12px;
  color: var(--cyan);
  border-bottom: 1px solid var(--b-mid);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: normal;
  font-size: 11px;
}
.prose td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(0,229,255,0.06);
  vertical-align: top;
}
.prose tbody tr:last-child td { border-bottom: none; }
.prose tbody tr:hover td { background: rgba(0,229,255,0.04); }
.prose td code {
  font-size: 12px;
}

/* ------------------------------------------------------------------ */
/* Pills + footer                                                      */
/* ------------------------------------------------------------------ */
.pill {
  display: inline-flex; align-items: center;
  padding: 4px 10px;
  border: 1px solid var(--b-mid);
  background: rgba(0,229,255,0.05);
  color: var(--text);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.pill.cyan { color: var(--cyan); border-color: var(--b-hot); }
.pill.ok { color: var(--green); border-color: rgba(0,228,54,0.4); background: rgba(0,228,54,0.06); }
.pill.warn { color: var(--amber); border-color: rgba(251,191,36,0.5); background: rgba(251,191,36,0.06); }

.muted { color: var(--muted); }

footer {
  margin-top: 48px;
  padding-top: 18px;
  border-top: 1px solid var(--b-dim);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 11px;
  font-family: var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  flex-wrap: wrap;
  gap: 8px;
}
footer a {
  color: var(--cyan);
  text-decoration: none;
}
footer a:hover {
  color: var(--cyan-hot);
  text-shadow: 0 0 6px rgba(0,229,255,0.5);
}

/* Images (flow diagrams etc.) */
.prose img {
  max-width: 100%;
  border: 1px solid var(--b-mid);
  border-radius: 3px;
  background: rgba(0,0,0,0.4);
  padding: 4px;
}

/* Mermaid container, in case flow.md renders one */
.prose .mermaid {
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--b-mid);
  border-radius: 3px;
  padding: 16px;
  margin-bottom: 18px;
  overflow-x: auto;
}