:root {
  --parchment: #F4F2EC;
  --parchment-2: #EFEBE3;
  --ink: #1A1A1A;
  --ink-soft: #1A1A1AB3;
  --oxide: #B83A1A;
  --steel: #5B6770;
  --rule: #1A1A1A;
  --grid: #1A1A1A0F;
  --font-display: "Fraunces", "GT Sectra", Georgia, serif;
  --font-body: "Inter", -apple-system, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Berkeley Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--parchment);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: -1px -1px;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 32px; }

/* ----- nav ----- */
nav.top {
  display: flex; justify-content: space-between; align-items: center;
  padding: 28px 0; border-bottom: 1px solid var(--rule);
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--ink); text-decoration: none;
}
.brand .mark { width: 24px; height: 24px; color: var(--oxide); }
.brand-word { font-family: var(--font-display); font-weight: 600; font-size: 22px; letter-spacing: -0.01em; }
.nav-links { list-style: none; display: flex; gap: 28px; margin: 0; padding: 0; font-size: 14px; align-items: center; }
.nav-links a { color: var(--ink); text-decoration: none; transition: color 120ms; }
.nav-links a:hover { color: var(--oxide); }
.nav-cta {
  border: 1px solid var(--ink);
  padding: 7px 14px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em;
}
.nav-cta:hover { background: var(--ink); color: var(--parchment) !important; }
.gh-icon { width: 14px; height: 14px; vertical-align: -2px; margin-right: 4px; display: inline-block; }
.btn .gh-icon { width: 15px; height: 15px; vertical-align: -3px; margin-right: 2px; }

/* ----- shared bits ----- */
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--ink); padding: 6px 12px; border-radius: 999px;
  font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em;
}
.pill::before { content: ""; width: 6px; height: 6px; background: var(--oxide); border-radius: 50%; }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px; border-radius: 0;
  font-family: var(--font-mono); font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em;
  text-decoration: none; border: 1px solid var(--ink); transition: 120ms ease;
}
.btn-primary { background: var(--ink); color: var(--parchment); }
.btn-primary:hover { background: var(--oxide); border-color: var(--oxide); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--parchment); }

section { padding: 96px 0; border-bottom: 1px solid var(--rule); }
.section-head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 48px; padding-bottom: 16px; border-bottom: 1px solid var(--rule);
}
.section-head h2 {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(32px, 4vw, 48px); letter-spacing: -0.02em; margin: 0;
}
.section-head .num {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em;
  color: var(--steel); text-transform: uppercase;
}

/* ----- hero ----- */
.hero { padding: 96px 0 80px; border-bottom: 1px solid var(--rule); }
.hero .pill { margin-bottom: 24px; }
h1.display {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(44px, 6.5vw, 92px);
  line-height: 0.97;
  letter-spacing: -0.025em;
  margin: 0 0 28px;
  max-width: 18ch;
}
h1.display em {
  font-style: italic; color: var(--oxide); font-weight: 500;
}
.lede {
  font-size: 20px; line-height: 1.5; max-width: 60ch; color: var(--steel);
  margin: 0 0 40px;
}
.ctas { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }

.schematic {
  margin-top: 80px;
  border: 1px solid var(--ink);
  background: var(--parchment);
  padding: 32px;
  position: relative;
}
.schematic .corner {
  position: absolute; width: 12px; height: 12px; border: 1px solid var(--ink); background: var(--parchment);
}
.corner.tl { top: -7px; left: -7px; }
.corner.tr { top: -7px; right: -7px; }
.corner.bl { bottom: -7px; left: -7px; }
.corner.br { bottom: -7px; right: -7px; }
.schematic-meta {
  display: flex; justify-content: space-between;
  margin-bottom: 16px;
}
.schematic-meta + svg { margin-bottom: 12px; }
.schematic .label {
  font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--steel);
}
svg.diagram { width: 100%; height: auto; display: block; margin: 0 0 12px; }
.schematic > .schematic-meta:last-child { margin-bottom: 0; margin-top: 0; }

/* ----- live demo animation ----- */
.demo {
  position: relative;
  margin: 16px 0 12px;
}

.terminal {
  background: #0F0F0F;
  border: 1px solid var(--ink);
  position: relative;
  overflow: hidden;
}
.terminal-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  background: #181818;
  border-bottom: 1px solid #2A2A2A;
  font-family: var(--font-mono);
  font-size: 11px;
  color: #888;
}
.t-dot { width: 11px; height: 11px; border-radius: 50%; }
.t-r { background: #FF5F57; }
.t-y { background: #FEBC2E; }
.t-g { background: #28C840; }
.terminal-path { margin-left: 10px; }

.terminal-body {
  position: relative;
  min-height: 280px;
  padding: 20px 22px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  color: #E6E6E6;
}

.scene {
  position: absolute;
  inset: 20px 22px;
  opacity: 0;
  animation: demoCycle 18s infinite;
}
.scene-1 { animation-delay: 0s; }
.scene-2 { animation-delay: 6s; }
.scene-3 { animation-delay: 12s; }

@keyframes demoCycle {
  0%, 2%   { opacity: 0; transform: translateY(4px); }
  4%, 30%  { opacity: 1; transform: translateY(0); }
  33%, 100% { opacity: 0; transform: translateY(-4px); }
}

.scene .line {
  margin: 0 0 2px;
  opacity: 0;
  animation: lineIn 0.35s ease forwards;
}
.scene-1 .line:nth-child(1) { animation-delay: 0.4s; }
.scene-1 .line:nth-child(2) { animation-delay: 0.65s; }
.scene-1 .line:nth-child(3) { animation-delay: 0.85s; }
.scene-1 .line:nth-child(4) { animation-delay: 1.10s; }
.scene-1 .line:nth-child(5) { animation-delay: 1.35s; }
.scene-1 .line:nth-child(6) { animation-delay: 1.60s; }
.scene-1 .line:nth-child(7) { animation-delay: 1.85s; }
.scene-1 .line:nth-child(8) { animation-delay: 2.15s; }

.scene-2 .line:nth-child(1) { animation-delay: 0.4s; }
.scene-2 .line:nth-child(2) { animation-delay: 0.55s; }
.scene-2 .line:nth-child(3) { animation-delay: 0.70s; }
.scene-2 .line:nth-child(4) { animation-delay: 1.10s; }
.scene-2 .line:nth-child(5) { animation-delay: 1.60s; }
.scene-2 .line:nth-child(6) { animation-delay: 1.78s; }
.scene-2 .line:nth-child(7) { animation-delay: 1.96s; }
.scene-2 .line:nth-child(8) { animation-delay: 2.30s; }

.scene-3 .line:nth-child(1) { animation-delay: 0.4s; }
.scene-3 .line:nth-child(2) { animation-delay: 0.80s; }
.scene-3 .line:nth-child(3) { animation-delay: 1.05s; }
.scene-3 .line:nth-child(4) { animation-delay: 1.30s; }
.scene-3 .line:nth-child(5) { animation-delay: 2.30s; }
.scene-3 .line:nth-child(6) { animation-delay: 2.50s; }
.scene-3 .line:nth-child(7) { animation-delay: 2.75s; }

@keyframes lineIn {
  from { opacity: 0; transform: translateY(2px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* SSE stream tokens reveal one-by-one within scene 3 */
.stream-text .tok {
  opacity: 0;
  animation: tokIn 0.18s ease forwards;
}
.stream-text .tok:nth-child(1) { animation-delay: 1.40s; }
.stream-text .tok:nth-child(2) { animation-delay: 1.55s; }
.stream-text .tok:nth-child(3) { animation-delay: 1.70s; }
.stream-text .tok:nth-child(4) { animation-delay: 1.85s; }
.stream-text .tok:nth-child(5) { animation-delay: 2.00s; }
.stream-text .tok:nth-child(6) { animation-delay: 2.13s; }
.stream-text .tok:nth-child(7) { animation-delay: 2.25s; }
.stream-text .tok:nth-child(8) { animation-delay: 2.38s; }
@keyframes tokIn { to { opacity: 1; } }

.scene .indent { padding-left: 24px; color: #B0B0B0; }
.scene .out { color: #9A9A9A; }
.scene .prompt { color: #7AE582; }
.scene .cmd { color: #E6E6E6; }
.scene .ok { color: #7AE582; }
.scene .err { color: #FF6B6B; }
.scene .str { color: #C2D7A4; }
.scene .key { color: #E8B85B; }
.scene .ev .ev-k { color: #9CC9FF; }

.cursor {
  display: inline-block;
  width: 7px;
  height: 14px;
  background: #7AE582;
  vertical-align: middle;
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.demo-steps {
  display: flex;
  gap: 32px;
  margin-top: 16px;
  border-top: 1px solid var(--rule);
  padding-top: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel);
}
.demo-step {
  flex: 1 1 0;
  padding: 0 0 0 14px;
  border-left: 2px solid #1A1A1A26;
  transition: 200ms ease;
}
.demo-step[data-step="1"] { animation: stepActive 18s infinite; animation-delay: 0s; }
.demo-step[data-step="2"] { animation: stepActive 18s infinite; animation-delay: 6s; }
.demo-step[data-step="3"] { animation: stepActive 18s infinite; animation-delay: 12s; }
@keyframes stepActive {
  0%, 2%, 33%, 100% { color: var(--steel); border-left-color: #1A1A1A26; }
  4%, 30% { color: var(--oxide); border-left-color: var(--oxide); }
}

@media (max-width: 880px) {
  .terminal-body { font-size: 11.5px; min-height: 320px; padding: 16px 18px; }
  .scene { inset: 16px 18px; }
  .demo-steps { flex-direction: column; gap: 8px; }
}

/* ----- features ----- */
.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  border: 1px solid var(--ink);
}
.feature {
  padding: 32px;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  background: var(--parchment);
}
.feature:nth-child(3n) { border-right: none; }
.feature:nth-last-child(-n+3) { border-bottom: none; }
.feat-num {
  font-family: var(--font-mono); font-size: 11px; color: var(--oxide);
  letter-spacing: 0.1em; margin-bottom: 16px;
}
.feature h3 {
  font-family: var(--font-display); font-weight: 500; font-size: 22px;
  letter-spacing: -0.015em; margin: 0 0 10px;
}
.feature p { margin: 0; color: var(--steel); font-size: 14.5px; line-height: 1.55; }
.feature code {
  font-family: var(--font-mono); font-size: 12.5px; color: var(--ink);
  background: var(--parchment-2); padding: 1px 5px;
}

/* ----- quickstart ----- */
.steps { display: grid; gap: 32px; }
.step {
  display: grid; grid-template-columns: 88px 1fr; gap: 32px;
  align-items: start;
}
.step-num {
  font-family: var(--font-display); font-weight: 500;
  font-size: 48px; line-height: 1; color: var(--oxide);
  border-top: 2px solid var(--oxide);
  padding-top: 14px;
}
.step-body h3 {
  font-family: var(--font-display); font-weight: 500; font-size: 28px;
  letter-spacing: -0.015em; margin: 0 0 8px;
}
.step-body p { margin: 0 0 16px; color: var(--steel); max-width: 60ch; }

pre.code {
  background: var(--ink); color: var(--parchment);
  font-family: var(--font-mono); font-size: 13px; padding: 24px;
  margin: 0; overflow-x: auto; line-height: 1.65;
  position: relative; cursor: copy;
  transition: background 120ms;
}
pre.code:hover { background: #232323; }
pre.code .tok-key { color: #E8B85B; }
pre.code .tok-str { color: #C2D7A4; }
pre.code .tok-cmt { color: #7A8088; font-style: italic; }
pre.code::after {
  content: "click to copy"; position: absolute; top: 8px; right: 12px;
  font-size: 10px; color: var(--steel); letter-spacing: 0.08em; text-transform: uppercase;
  opacity: 0; transition: opacity 120ms;
}
pre.code:hover::after { opacity: 1; }
pre.code[data-copied]::after { content: "copied ✓"; color: #C2D7A4; opacity: 1; }

/* ----- how it works ----- */
.how-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
}
.how-card {
  border: 1px solid var(--ink); padding: 28px; background: var(--parchment);
}
.how-label {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em;
  color: var(--oxide); text-transform: uppercase; margin-bottom: 12px;
}
.how-card p { margin: 0; color: var(--ink); font-size: 15px; line-height: 1.6; }
.how-card code {
  font-family: var(--font-mono); font-size: 12.5px;
  background: var(--parchment-2); padding: 1px 5px;
}
.how-foot {
  margin-top: 24px; font-family: var(--font-mono); font-size: 13px; color: var(--steel);
}
.how-foot a { color: var(--oxide); }

/* ----- ownership ----- */
.own { background: var(--ink); color: var(--parchment); border-bottom: none; padding-left: 56px; padding-right: 56px; }
.own .wrap, .own .own-inner { color: inherit; }
.own .section-head { border-bottom-color: var(--parchment); }
.own .num { color: var(--parchment); opacity: 0.6; }
.own h2 {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(36px, 5vw, 64px); letter-spacing: -0.025em;
  margin: 0 0 20px; max-width: 18ch; line-height: 1;
}
.own p { font-size: 17px; line-height: 1.55; max-width: 56ch; opacity: 0.85; margin: 0 0 16px; }
.own-inner {
  display: grid;
  grid-template-columns: 1.4fr minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}
.own .ctas { margin-top: 24px; }
.own .btn-primary { background: var(--oxide); color: var(--parchment); border-color: var(--oxide); }
.own .btn-primary:hover { background: var(--parchment); color: var(--ink); border-color: var(--parchment); }
.own .btn-ghost { color: var(--parchment); border-color: var(--parchment); }
.own .btn-ghost:hover { background: var(--parchment); color: var(--ink); }
.facts { list-style: none; padding: 0; margin: 0; border-top: 1px solid #FFFFFF22; }
.facts li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 16px;
  align-items: baseline;
  padding: 14px 0; border-bottom: 1px solid #FFFFFF22;
  font-family: var(--font-mono); font-size: 12.5px;
}
.fact-k {
  color: var(--parchment); opacity: 0.55;
  letter-spacing: 0.06em; text-transform: uppercase;
  white-space: nowrap;
}
.fact-v {
  color: var(--parchment);
  text-align: right;
  min-width: 0;
  overflow-wrap: break-word;
  line-height: 1.4;
}

/* ----- footer ----- */
footer {
  padding: 64px 0 32px;
  border-top: 1px solid var(--rule);
}
.footer-cols {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
  margin-bottom: 48px;
}
.footer-brand .brand { margin-bottom: 12px; }
.footer-tag {
  font-family: var(--font-display); font-style: italic;
  font-size: 16px; color: var(--steel); margin: 0; max-width: 28ch;
}
.footer-col h5 {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--steel); margin: 0 0 14px;
}
.footer-col a {
  display: block; color: var(--ink); text-decoration: none; font-size: 14px;
  padding: 4px 0;
}
.footer-col a:hover { color: var(--oxide); }
.footer-bar {
  display: flex; justify-content: space-between;
  padding-top: 24px; border-top: 1px solid var(--rule);
  font-family: var(--font-mono); font-size: 11px;
  color: var(--steel); text-transform: uppercase; letter-spacing: 0.1em;
}

/* ----- responsive ----- */
@media (max-width: 880px) {
  .wrap { padding: 0 20px; }
  nav.top { padding: 20px 0; }
  .nav-links { gap: 14px; font-size: 13px; }
  .nav-links li:nth-child(2), .nav-links li:nth-child(3) { display: none; }
  .hero { padding: 64px 0 56px; }
  h1.display { font-size: clamp(36px, 9vw, 56px); }
  .lede { font-size: 17px; }
  .schematic { padding: 20px; margin-top: 56px; }
  section { padding: 64px 0; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 8px; }
  .features-grid { grid-template-columns: 1fr; }
  .feature { border-right: none; border-bottom: 1px solid var(--ink); }
  .feature:last-child { border-bottom: none; }
  .step { grid-template-columns: 60px 1fr; gap: 16px; }
  .step-num { font-size: 32px; }
  .how-grid { grid-template-columns: 1fr; }
  .own-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-cols { grid-template-columns: 1fr 1fr; gap: 32px; }
}