:root {
  --bg: #fafaf7;
  --bg-soft: #f3f1ea;
  --bg-alt: #f6f4ed;
  --fg: #0a0a0a;
  --fg-2: #1c1917;
  --muted: #525252;
  --muted-2: #737373;
  --border: #d8d4c7;
  --border-soft: #e6e2d6;
  --accent: #b45309;
  --accent-soft: #fef3c7;
  --code-bg: #0c0c0c;
  --code-fg: #f5f5f4;
  --maxw: 1100px;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 0 rgba(15, 15, 15, 0.04), 0 8px 24px -12px rgba(15, 15, 15, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--fg);
  text-decoration: none;
}

a:hover {
  color: var(--accent);
}

code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Monaco, Consolas, monospace;
  font-size: 0.92em;
  background: var(--bg-soft);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  border: 1px solid var(--border-soft);
}

h1, h2, h3, h4 {
  margin: 0 0 0.5rem;
  letter-spacing: -0.01em;
  color: var(--fg);
}

h1 {
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  line-height: 1.18;
  letter-spacing: -0.015em;
}

h3 {
  font-size: 1.05rem;
  line-height: 1.35;
  font-weight: 600;
}

h4 {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

p {
  margin: 0 0 1rem;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(180%) blur(8px);
  background: rgba(250, 250, 247, 0.85);
  border-bottom: 1px solid var(--border-soft);
}

.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand-mark {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--fg) 0%, var(--accent) 100%);
  display: inline-block;
}

.brand-text {
  font-size: 1rem;
}

.nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.nav-links a {
  font-size: 0.92rem;
  color: var(--muted);
}

.nav-links a:hover {
  color: var(--fg);
}

.nav-cta {
  background: var(--fg);
  color: var(--bg) !important;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.nav-cta:hover {
  background: var(--accent) !important;
}

@media (max-width: 760px) {
  .nav-links {
    gap: 0.9rem;
  }
  .nav-links li:nth-child(-n + 5) {
    display: none;
  }
}

/* Hero */

.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 5rem 1.5rem 3.5rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 1.2rem;
  font-weight: 600;
}

.lede {
  max-width: 720px;
  font-size: 1.08rem;
  color: var(--muted);
  margin-top: 1.2rem;
}

.hero-actions {
  display: flex;
  gap: 0.7rem;
  margin-top: 1.6rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.1rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  border: 1px solid var(--border);
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn.primary {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}

.btn.primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

.btn.ghost {
  background: transparent;
  color: var(--fg);
}

.btn.ghost:hover {
  background: var(--bg-soft);
  color: var(--fg);
}

.status-row {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
}

.pill {
  display: inline-block;
  font-size: 0.78rem;
  padding: 0.3rem 0.65rem;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  font-weight: 500;
  letter-spacing: 0.01em;
  border: 1px solid rgba(180, 83, 9, 0.18);
}

.status-note {
  color: var(--muted-2);
  font-size: 0.88rem;
}

/* Sections */

.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 4rem 1.5rem;
  scroll-margin-top: 70px;
}

.section.alt {
  max-width: none;
  background: var(--bg-alt);
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}

.section.alt > * {
  max-width: var(--maxw);
  margin-left: auto;
  margin-right: auto;
}

.section-head {
  margin-bottom: 2rem;
  max-width: 760px;
}

.section-kicker {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  color: var(--accent);
  margin-bottom: 0.6rem;
  font-weight: 600;
}

.prose {
  max-width: 720px;
}

.prose p,
.prose li {
  color: var(--fg-2);
}

.bullet-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 1.5rem;
}

.bullet-list li {
  position: relative;
  padding: 0.45rem 0 0.45rem 1.4rem;
  border-top: 1px solid var(--border-soft);
}

.bullet-list li:last-child {
  border-bottom: 1px solid var(--border-soft);
}

.bullet-list li::before {
  content: "";
  position: absolute;
  left: 0.1rem;
  top: 0.95rem;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

/* Steps */

.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.step {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  position: relative;
  box-shadow: var(--shadow);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--fg);
  color: var(--bg);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 0.9rem;
}

.step h3 {
  margin-bottom: 0.5rem;
}

.step p {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0;
}

.step code {
  font-size: 0.85em;
}

/* Two-col */

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.4rem;
}

@media (max-width: 760px) {
  .two-col {
    grid-template-columns: 1fr;
  }
}

.two-col article {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  background: var(--bg);
}

.two-col article h3 {
  font-size: 1.05rem;
  margin-bottom: 0.6rem;
}

.two-col article p {
  color: var(--muted);
  margin: 0;
  font-size: 0.96rem;
}

.two-col .highlight {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}

.two-col .highlight h3,
.two-col .highlight p {
  color: var(--bg);
}

.two-col .highlight code {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--bg);
}

.footnote {
  max-width: 720px;
  color: var(--muted);
  font-size: 0.95rem;
  border-left: 2px solid var(--accent);
  padding-left: 1rem;
  margin: 0;
}

/* Trust layer card */

.layer-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.5rem 0;
}

@media (max-width: 720px) {
  .layer-card {
    grid-template-columns: 1fr;
  }
}

.layer {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
}

.layer h4 {
  margin-bottom: 0.4rem;
  color: var(--accent);
}

.layer p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
}

/* Roadmap */

.roadmap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

@media (max-width: 860px) {
  .roadmap {
    grid-template-columns: 1fr;
  }
}

.roadmap-col {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: var(--shadow);
}

.roadmap-col h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.9rem;
  font-weight: 600;
}

.roadmap-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.roadmap-col li {
  font-size: 0.95rem;
  color: var(--fg-2);
  padding: 0.55rem 0;
  border-top: 1px solid var(--border-soft);
}

.roadmap-col li:first-child {
  border-top: 0;
}

/* CTA */

.cta-box {
  background: var(--fg);
  color: var(--bg);
  border-radius: var(--radius);
  padding: 3rem 2rem;
  text-align: center;
  margin-top: 2rem;
}

.cta-box h2 {
  color: var(--bg);
  max-width: 700px;
  margin: 0 auto 0.6rem;
}

.cta-box p {
  color: rgba(250, 250, 247, 0.72);
  max-width: 640px;
  margin: 0 auto 1.4rem;
}

.cta-box .hero-actions {
  justify-content: center;
}

.cta-box .btn.primary {
  background: var(--bg);
  color: var(--fg);
  border-color: var(--bg);
}

.cta-box .btn.primary:hover {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

.cta-box .btn.ghost {
  color: var(--bg);
  border-color: rgba(250, 250, 247, 0.25);
}

.cta-box .btn.ghost:hover {
  background: rgba(250, 250, 247, 0.08);
  color: var(--bg);
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border-soft);
  background: var(--bg-alt);
  padding: 2.4rem 1.5rem;
}

.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: start;
}

.footer-brand {
  font-weight: 600;
  margin: 0 0 0.2rem;
}

.footer-muted {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0;
}

.footer-muted.small {
  font-size: 0.82rem;
  grid-column: 1 / -1;
  margin-top: 0.6rem;
}

.footer-links {
  display: flex;
  gap: 1.2rem;
  align-items: center;
}

.footer-links a {
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-links a:hover {
  color: var(--fg);
}

@media (max-width: 640px) {
  .footer-inner {
    grid-template-columns: 1fr;
  }
  .footer-links {
    flex-wrap: wrap;
  }
}

::selection {
  background: var(--accent);
  color: var(--bg);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}