@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400;8..60,500;8..60,600&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --ink: #efece3;
  --ink-2: #e4e0d3;
  --ink-3: #d6d2c422;
  --paper: #232821;
  --paper-dim: #5f6a63;
  --amber: #a3572e;
  --amber-dim: #7c4322;
  --slate: #3f6b63;
  --sage: #3f7a4f;
  --line: #d6d2c4;
  --font-head: 'Source Serif 4', serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

/* Layout differences from the base look: mirrored hero, list-style pipeline */
[data-variant="b"] .hero .grid { grid-template-columns: 1fr 1.05fr; }
[data-variant="b"] .hero .term { order: -1; }
[data-variant="b"] .term { box-shadow: 0 1px 2px rgba(0,0,0,.06); }

[data-variant="b"] .pipeline {
  grid-template-columns: 1fr;
  row-gap: 0;
  max-width: 640px;
}
[data-variant="b"] .pipeline .step {
  border-right: none;
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
  display: flex;
  align-items: baseline;
  gap: 20px;
}
[data-variant="b"] .pipeline .step:last-child { border-bottom: none; }
[data-variant="b"] .pipeline h3 { margin-top: 0; }

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .logo {
  font-family: var(--font-head);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0;
}

code, pre, .mono {
  font-family: var(--font-mono);
}

a { color: inherit; }

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
}

/* Header */
header.site {
  border-bottom: 1px solid var(--line);
  padding: 22px 0;
}
header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-size: 1.3rem;
  text-decoration: none;
}
.logo span {
  color: var(--amber);
}
nav.primary ul {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
}
nav.primary a {
  text-decoration: none;
  color: var(--paper-dim);
  font-size: 0.95rem;
}
nav.primary a:hover, nav.primary a.active {
  color: var(--paper);
}
.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 3px;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}
.btn.primary {
  background: var(--amber);
  color: var(--ink);
}
.btn.ghost {
  border: 1px solid var(--line);
  color: var(--paper);
}

/* Hero */
.hero {
  padding: 84px 0 64px;
}
.hero .grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero h1 {
  font-size: 2.6rem;
  line-height: 1.15;
  max-width: 480px;
}
.hero p.lede {
  color: var(--paper-dim);
  max-width: 440px;
  font-size: 1.05rem;
  margin-top: 20px;
}
.hero .cta-row {
  margin-top: 30px;
  display: flex;
  gap: 14px;
}

.term {
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
}
.term .bar {
  display: flex;
  gap: 6px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}
.term .dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--line);
}
.term pre {
  margin: 0;
  padding: 18px 20px 22px;
  font-size: 0.85rem;
  overflow-x: auto;
  color: var(--paper-dim);
}
.term .req { color: var(--amber); }
.term .key { color: var(--slate); }
.term .str { color: var(--sage); }

/* Sections */
section.block {
  padding: 60px 0;
  border-top: 1px solid var(--line);
}
section.block h2 {
  font-size: 1.7rem;
  max-width: 520px;
}
p.section-lede {
  color: var(--paper-dim);
  max-width: 560px;
  margin-top: 14px;
}

/* Pipeline (sequential — real steps) */
.pipeline {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.pipeline .step {
  padding: 0 22px 0 0;
  border-right: 1px solid var(--line);
  position: relative;
}
.pipeline .step:last-child { border-right: none; padding-right: 0; }
.pipeline .num {
  font-family: var(--font-mono);
  color: var(--amber-dim);
  font-size: 0.85rem;
}
.pipeline h3 {
  font-size: 1.05rem;
  margin-top: 10px;
}
.pipeline p {
  color: var(--paper-dim);
  font-size: 0.92rem;
  margin-top: 8px;
}

/* Stats */
.stats {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.stat .num {
  font-family: var(--font-head);
  font-size: 2.1rem;
  color: var(--paper);
}
.stat .label {
  color: var(--paper-dim);
  font-size: 0.88rem;
  margin-top: 4px;
}

/* Quote */
.quote {
  margin-top: 44px;
  border-left: 2px solid var(--amber-dim);
  padding-left: 22px;
  max-width: 620px;
  font-family: var(--font-head);
  font-size: 1.15rem;
  color: var(--paper);
}
.quote cite {
  display: block;
  margin-top: 14px;
  font-family: var(--font-body);
  font-style: normal;
  font-size: 0.88rem;
  color: var(--paper-dim);
}

/* Tables (docs / product) */
table.spec {
  width: 100%;
  border-collapse: collapse;
  margin-top: 28px;
  font-size: 0.92rem;
}
table.spec th, table.spec td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}
table.spec th {
  color: var(--paper-dim);
  font-weight: 500;
  font-size: 0.82rem;
}
table.spec td.mono { color: var(--sage); }

/* Status list */
.status-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.status-row .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--sage);
  flex-shrink: 0;
}
.status-row .date {
  margin-left: auto;
  color: var(--paper-dim);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

/* Changelog */
.change {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.change .ver {
  font-family: var(--font-mono);
  color: var(--amber);
  font-size: 0.85rem;
}
.change h3 {
  font-size: 1.05rem;
  margin-top: 6px;
}
.change p {
  color: var(--paper-dim);
  margin-top: 8px;
  font-size: 0.92rem;
}

/* Contact */
.contact-grid {
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.field {
  margin-bottom: 18px;
}
.field label {
  display: block;
  font-size: 0.85rem;
  color: var(--paper-dim);
  margin-bottom: 6px;
}
.field input, .field textarea {
  width: 100%;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--paper);
  padding: 10px 12px;
  font-family: inherit;
  font-size: 0.95rem;
}
.field textarea { min-height: 100px; resize: vertical; }

/* Footer */
footer.site {
  border-top: 1px solid var(--line);
  padding: 40px 0;
  margin-top: 20px;
}
footer.site .wrap {
  display: flex;
  justify-content: space-between;
  color: var(--paper-dim);
  font-size: 0.85rem;
}
footer.site nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
  padding: 0;
  margin: 0;
}
footer.site nav a { text-decoration: none; color: var(--paper-dim); }
footer.site nav a:hover { color: var(--paper); }

@media (max-width: 780px) {
  .hero .grid { grid-template-columns: 1fr; }
  .pipeline { grid-template-columns: 1fr 1fr; row-gap: 28px; }
  .pipeline .step { border-right: none; }
  .stats { grid-template-columns: 1fr 1fr; row-gap: 24px; }
  .contact-grid { grid-template-columns: 1fr; }
  nav.primary { display: none; }
}