/* OCA — bold editorial */
:root {
  --bg: #fff8eb;
  --ink: #13111a;
  --ink-soft: #4b4954;
  --paper: #f5ecd5;
  --line: #1a1818;
  --accent: #d61f3a;
  --accent-soft: #f04a5e;
  --gold: #cb9b3a;
  --rule: rgba(19, 17, 26, 0.18);
  --shadow: 0 6px 0 0 var(--ink);
  --serif: "Fraunces", "Times New Roman", serif;
  --sans: "Inter Tight", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  font-size: 18px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main { max-width: 1200px; margin: 0 auto; padding: 40px 28px 120px; }
a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--accent); }
code, pre { font-family: var(--mono); font-size: 14px; }
pre {
  background: var(--ink);
  color: #f6e8c1;
  border: 2px solid var(--ink);
  box-shadow: var(--shadow);
  padding: 22px 26px;
  border-radius: 4px;
  overflow-x: auto;
}
code { background: var(--paper); padding: 1px 6px; border-radius: 3px; }

/* topbar -------------------------------------------------------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 28px;
  border-bottom: 2px solid var(--ink);
  background: var(--bg);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.brand-mark {
  width: 26px; height: 26px;
  background:
    conic-gradient(from 210deg at 50% 50%,
      var(--accent) 0 25%, var(--ink) 25% 50%,
      var(--gold) 50% 75%, var(--ink) 75% 100%);
  border-radius: 6px;
  border: 2px solid var(--ink);
}
.brand-name { font-family: var(--serif); font-size: 22px; letter-spacing: -0.01em; }
.topbar nav { display: flex; gap: 22px; font-weight: 500; }
.topbar nav a { border-bottom: 1px solid transparent; }
.topbar nav a:hover { border-bottom-color: var(--ink); }
.cta {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--sans); font-weight: 700;
  font-size: 16px;
  padding: 10px 18px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--ink);
  color: var(--bg);
  cursor: pointer;
  box-shadow: 4px 4px 0 0 var(--accent);
  transition: transform 80ms ease, box-shadow 80ms ease;
}
.cta:hover { transform: translate(-1px, -1px); box-shadow: 5px 5px 0 0 var(--accent); }
.cta.primary { background: var(--accent); color: white; box-shadow: 4px 4px 0 0 var(--ink); }
.cta.primary:hover { box-shadow: 5px 5px 0 0 var(--ink); }
.cta.ghost { background: transparent; color: var(--ink); box-shadow: none; border-color: var(--ink); }
.cta.ghost:hover { box-shadow: 4px 4px 0 0 var(--accent); }
.cta.block { width: 100%; justify-content: center; }

/* hero ----------------------------------------------------------- */
.hero { padding: 40px 0 80px; }
.kicker {
  display: inline-block;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 2px solid var(--ink);
  background: var(--paper);
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(56px, 9vw, 128px);
  line-height: 0.95;
  letter-spacing: -0.025em;
  margin: 24px 0 24px;
}
.hero h1 em {
  font-style: italic;
  background: var(--ink);
  color: var(--bg);
  padding: 0 16px 4px;
  border-radius: 6px;
  display: inline-block;
  transform: rotate(-1.5deg);
}
.lede { max-width: 820px; font-size: 22px; color: var(--ink-soft); }
.hero-cta { display: flex; gap: 14px; margin: 36px 0 48px; flex-wrap: wrap; }

/* marquee */
.marquee {
  margin-top: 48px;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  background: var(--ink);
  color: var(--bg);
  overflow: hidden;
  padding: 14px 0;
}
.marquee-track {
  display: inline-flex; gap: 36px;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 600;
  font-size: 26px;
  white-space: nowrap;
  animation: scroll 60s linear infinite;
}
@keyframes scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* grids ---------------------------------------------------------- */
.grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin: 80px 0;
}
.card {
  background: var(--paper);
  border: 2px solid var(--ink);
  border-radius: 8px;
  padding: 28px;
  box-shadow: var(--shadow);
}
.card h3 { font-family: var(--serif); font-size: 24px; margin: 0 0 8px; }
.card p { margin: 0; color: var(--ink-soft); }

/* receipt preview */
.receipt { margin: 80px 0; }
.receipt h2 { font-family: var(--serif); font-size: 48px; margin: 0 0 12px; }
.muted { color: var(--ink-soft); }
.muted.small { font-size: 14px; }

/* cta band */
.cta-band {
  margin: 80px 0 0;
  padding: 60px 40px;
  background: var(--ink);
  color: var(--bg);
  border-radius: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}
.cta-band h2 { font-family: var(--serif); font-size: 42px; margin: 0; letter-spacing: -0.02em; }
.cta-band .cta.primary { background: var(--accent); }

/* pricing -------------------------------------------------------- */
.pricing h1 { font-family: var(--serif); font-weight: 900; font-size: clamp(40px, 7vw, 80px); margin: 0 0 16px; letter-spacing: -0.02em; }
.tier-grid {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  margin: 60px 0;
}
.tier {
  background: var(--paper);
  border: 2px solid var(--ink);
  border-radius: 10px;
  padding: 26px;
  display: flex; flex-direction: column;
  box-shadow: var(--shadow);
}
.tier.featured {
  background: var(--ink); color: var(--bg);
  transform: translateY(-6px);
}
.tier.featured .tier-tag, .tier.featured ul li::marker { color: var(--accent-soft); }
.tier h2 { font-family: var(--serif); font-size: 28px; margin: 0; }
.tier-tag { font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.16em; color: var(--ink-soft); margin: 6px 0 18px; }
.tier-price { font-family: var(--serif); font-weight: 900; font-size: 56px; letter-spacing: -0.03em; }
.tier-period { font-family: var(--sans); font-weight: 500; font-size: 16px; margin-left: 6px; color: var(--ink-soft); }
.tier.featured .tier-period { color: var(--bg); opacity: 0.7; }
.tier ul { padding-left: 18px; margin: 14px 0 22px; }
.tier ul li { margin: 6px 0; }
.vol-discount { margin: 40px 0; padding: 28px; background: var(--paper); border: 2px dashed var(--ink); border-radius: 8px; }

/* modules --------------------------------------------------------- */
.modules-main h1, .docs-main h1, .admin-main h1 {
  font-family: var(--serif); font-weight: 900;
  font-size: clamp(40px, 7vw, 80px); margin: 0 0 16px; letter-spacing: -0.02em;
}
.module-family { margin: 40px 0; }
.module-family h2 {
  font-family: var(--serif); font-weight: 600; font-size: 26px;
  border-bottom: 2px solid var(--ink); padding-bottom: 6px; margin-bottom: 12px;
}
.module-family .dim { font-family: var(--mono); font-size: 13px; color: var(--ink-soft); font-weight: 400; }
.module-family ul { padding-left: 22px; }
.module-family li { margin: 8px 0; }

/* docs ------------------------------------------------------------ */
.steps { counter-reset: step; list-style: none; padding: 0; }
.steps > li {
  counter-increment: step;
  padding: 20px 0 20px 56px;
  position: relative;
  border-top: 2px solid var(--rule);
}
.steps > li:first-child { border-top: none; }
.steps > li::before {
  content: counter(step);
  position: absolute; left: 0; top: 16px;
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--serif); font-weight: 900;
  background: var(--ink); color: var(--bg);
  border-radius: 4px;
}
.steps h3 { font-family: var(--serif); font-size: 22px; margin: 0 0 6px; }
.api-block {
  margin: 32px 0; padding: 22px;
  background: var(--paper); border: 2px solid var(--ink); border-radius: 8px;
}
.api-block h2 { font-family: var(--serif); font-size: 28px; margin: 0 0 8px; }
.api-block h3 { font-family: var(--mono); font-size: 14px; letter-spacing: 0.05em; text-transform: uppercase; margin: 16px 0 6px; }

/* admin ----------------------------------------------------------- */
.admin-main { max-width: 880px; }
.card-block {
  margin: 22px 0; padding: 22px;
  background: var(--paper); border: 2px solid var(--ink); border-radius: 8px;
}
.card-block h2 { font-family: var(--serif); margin: 0 0 12px; font-size: 22px; }
.card-block label {
  display: block; font-family: var(--mono); font-size: 12px;
  text-transform: uppercase; letter-spacing: 0.12em; margin: 14px 0 6px;
}
.card-block input, .card-block select {
  width: 100%; padding: 10px 14px;
  font-family: var(--mono); font-size: 14px;
  background: var(--bg); color: var(--ink);
  border: 2px solid var(--ink); border-radius: 6px;
}
.admin-actions { display: flex; gap: 14px; margin: 20px 0; flex-wrap: wrap; }
#result, #verify { white-space: pre-wrap; word-break: break-word; min-height: 100px; }

/* footer ---------------------------------------------------------- */
footer {
  border-top: 2px solid var(--ink);
  padding: 28px;
  display: flex; flex-wrap: wrap; gap: 12px;
  justify-content: space-between; align-items: center;
  background: var(--paper);
}
.footer-links { display: flex; gap: 14px; }

/* responsive */
@media (max-width: 720px) {
  .topbar nav { display: none; }
  .hero h1 { font-size: clamp(48px, 12vw, 92px); }
  .cta-band { flex-direction: column; align-items: flex-start; }
}