/* Substrate-Lens landing page — minimal, terminal-aesthetic, fast.
 * Single CSS file, no external deps, no fonts loaded from CDN.
 * Designed to render correctly with JS disabled. */

:root {
  --bg: #0e0e10;
  --fg: #e8e8ea;
  --fg-dim: #9a9a9f;
  --accent: #5fff5f;          /* terminal green */
  --accent-dim: #3fa83f;
  --warn: #ffb84d;
  --link: #7cc7ff;
  --card: #18181c;
  --card-border: #2a2a30;
  --code-bg: #07070a;
  --max-width: 980px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
          Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  line-height: 1.55;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--link);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 100ms;
}
a:hover { border-bottom-color: var(--link); }

code, pre {
  font-family: var(--mono);
  font-size: 14px;
}

code {
  background: var(--code-bg);
  padding: 1px 6px;
  border-radius: 3px;
  color: var(--accent);
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--card-border);
  border-radius: 6px;
  padding: 18px 22px;
  overflow-x: auto;
  margin: 0;
  line-height: 1.45;
}

pre code {
  background: transparent;
  padding: 0;
  color: var(--fg);
}

h1, h2, h3 {
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 0.6em 0;
}

h1 { font-size: 56px; line-height: 1.05; }
h2 { font-size: 36px; margin-top: 1.6em; }
h3 { font-size: 20px; }

/* ── Header / hero ──────────────────────────────────────────── */

.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 100px 32px 60px;
  text-align: center;
}

.hero h1 {
  background: linear-gradient(180deg, var(--fg) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.25em;
}

.tagline {
  font-size: 22px;
  color: var(--accent);
  font-family: var(--mono);
  margin: 0 0 1em 0;
}

.lede {
  font-size: 18px;
  color: var(--fg-dim);
  max-width: 720px;
  margin: 0 auto 36px;
  line-height: 1.65;
}

.cta-primary, .cta-secondary {
  display: inline-block;
  padding: 14px 28px;
  margin: 6px 8px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 16px;
  border-bottom: none !important;
}

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

.cta-secondary {
  border: 1px solid var(--card-border);
  color: var(--fg);
}
.cta-secondary:hover { background: var(--card); }

/* ── Terminal screenshot ────────────────────────────────────── */

.terminal-screenshot {
  max-width: var(--max-width);
  margin: 60px auto;
  padding: 0 32px;
}

.terminal-screenshot pre {
  font-size: 13px;
}

/* ── Features grid ──────────────────────────────────────────── */

.features {
  max-width: var(--max-width);
  margin: 80px auto;
  padding: 0 32px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.feature {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 24px;
}

.feature h3 {
  color: var(--accent);
  margin-bottom: 0.5em;
}

.feature p {
  color: var(--fg-dim);
  margin: 0;
  font-size: 15px;
}

/* ── Pricing ────────────────────────────────────────────────── */

.pricing {
  max-width: var(--max-width);
  margin: 80px auto;
  padding: 0 32px;
  text-align: center;
}

.pricing-lede {
  font-size: 17px;
  color: var(--fg-dim);
  margin: 0 auto 36px;
  max-width: 600px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  max-width: 720px;
  margin: 0 auto;
}

.tier {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 32px 28px;
  text-align: left;
}

.tier.featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent-dim);
}

.tier h3 {
  margin: 0 0 0.5em;
  color: var(--accent);
}

.tier .price {
  font-size: 36px;
  margin: 0;
}

.tier .price-yearly {
  font-size: 14px;
  color: var(--fg-dim);
  margin: 6px 0 18px;
}

.tier ul {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
}

.tier li {
  padding: 6px 0;
  color: var(--fg);
  border-bottom: 1px solid var(--card-border);
  font-size: 15px;
}

.tier li:last-child { border-bottom: none; }

.tier li::before {
  content: "✓  ";
  color: var(--accent);
  font-weight: bold;
}

.tier .cta-primary,
.tier .cta-secondary {
  display: block;
  text-align: center;
  margin: 0 0 10px 0;
}

.tier .cta-secondary:last-child { margin-bottom: 0; }

.pricing-footnote {
  margin-top: 32px;
  color: var(--fg-dim);
  font-size: 14px;
}

/* ── How it works / Trust ──────────────────────────────────── */

.how-it-works, .trust {
  max-width: var(--max-width);
  margin: 80px auto;
  padding: 0 32px;
}

.how-it-works ol {
  font-size: 17px;
  line-height: 1.8;
  color: var(--fg-dim);
}

.how-it-works ol li strong,
.how-it-works ol li code {
  color: var(--fg);
}

.works-footnote {
  margin-top: 24px;
  font-size: 14px;
  color: var(--fg-dim);
}

.trust-list {
  list-style: none;
  padding: 0;
  margin: 32px 0 0;
}

.trust-list li {
  margin-bottom: 22px;
  padding: 18px 22px;
  background: var(--card);
  border-left: 3px solid var(--accent);
  border-radius: 0 6px 6px 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--fg-dim);
}

.trust-list li strong { color: var(--fg); }

/* ── Footer ─────────────────────────────────────────────────── */

footer {
  max-width: var(--max-width);
  margin: 60px auto 40px;
  padding: 32px 32px 0;
  border-top: 1px solid var(--card-border);
  text-align: center;
  font-size: 14px;
  color: var(--fg-dim);
}

footer p { margin: 8px 0; }

/* ── Mobile tightening ──────────────────────────────────────── */

@media (max-width: 640px) {
  h1 { font-size: 40px; }
  h2 { font-size: 28px; }
  .hero { padding: 60px 20px 40px; }
  .terminal-screenshot pre { font-size: 11px; padding: 12px 16px; }
  .feature-grid, .pricing-grid { grid-template-columns: 1fr; }
}