:root {
  --bg: #09090b;
  --surface: #18181b;
  --border: #27272a;
  --text: #fafafa;
  --muted: #a1a1aa;
  --dim: #71717a;
  --violet: #a78bfa;
  --violet-dim: #7c3aed;
  --emerald: #34d399;
  --font: "Inter", system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
  --max: 68rem;
  --radius: 0.75rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(124, 58, 237, 0.18), transparent),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(124, 58, 237, 0.08), transparent);
}

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

a:hover {
  color: #c4b5fd;
  text-decoration: underline;
}

.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.site-header {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

.logo:hover {
  color: var(--violet);
  text-decoration: none;
}

.logo-img {
  height: 44px;
  width: auto;
  max-width: 180px;
  vertical-align: middle;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  font-size: 0.875rem;
}

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

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

.hero {
  padding: 3.5rem 0 2.5rem;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 1rem;
  padding: 0.25rem 0.75rem;
  border: 1px solid rgba(167, 139, 250, 0.35);
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--violet);
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.hero .lead {
  margin: 0 auto;
  max-width: 36rem;
  font-size: 1.0625rem;
  color: var(--muted);
}

.hero .reveal {
  margin: 1.5rem auto 0;
  max-width: 32rem;
  font-size: 0.9375rem;
  color: var(--dim);
}

.doors {
  padding: 1rem 0 3rem;
}

.doors h2 {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
  text-align: center;
}

.doors .sub {
  margin: 0 0 1.75rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--muted);
}

.door-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

.door {
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(24, 24, 27, 0.6);
  transition: border-color 0.15s, background 0.15s;
}

.door:hover {
  border-color: rgba(167, 139, 250, 0.4);
  background: rgba(124, 58, 237, 0.06);
}

.door-tag {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--violet);
  margin-bottom: 0.5rem;
}

.door h3 {
  margin: 0 0 0.35rem;
  font-size: 1.0625rem;
  font-weight: 600;
}

.door .symptom {
  margin: 0 0 0.75rem;
  font-size: 0.875rem;
  color: var(--muted);
  flex: 1;
}

.door .promise {
  margin: 0 0 1rem;
  font-size: 0.8125rem;
  color: var(--dim);
}

.door .cta {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: auto;
  padding: 0.5rem 0.875rem;
  border-radius: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text);
  background: rgba(124, 58, 237, 0.2);
  border: 1px solid rgba(167, 139, 250, 0.35);
  text-decoration: none;
  width: fit-content;
}

.door .cta:hover {
  background: rgba(124, 58, 237, 0.35);
  text-decoration: none;
  color: var(--text);
}

.door .cta-secondary {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--dim);
}

.continuity {
  margin: 0 auto 3rem;
  padding: 1.5rem 1.75rem;
  border: 1px solid rgba(167, 139, 250, 0.2);
  border-radius: var(--radius);
  background: rgba(124, 58, 237, 0.05);
}

.continuity p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--muted);
  text-align: center;
}

.continuity strong {
  color: var(--text);
  font-weight: 500;
}

.chain {
  padding: 0 0 3rem;
}

.chain h2 {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 600;
}

.chain-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
}

.chain-flow span {
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  background: var(--surface);
}

.chain-flow .arrow {
  border: none;
  background: none;
  padding: 0;
  color: var(--dim);
}

.repos {
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--border);
}

.repos h2 {
  margin: 0 0 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
}

.repo-list {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
}

.repo-card {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.repo-card h3 {
  margin: 0 0 0.25rem;
  font-size: 0.9375rem;
}

.repo-card p {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  color: var(--muted);
}

.site-footer {
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--dim);
  text-align: center;
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }
}