/*
  Shared by index.html and startups.html.
  Colours are tokens on :root, with the dark-mode set right underneath.
*/

:root {
  --bg: #ffffff;
  --text: #0a0a0a;
  --dim: #6b6b6b;
  --rule: #e4e4e4;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0a0a;
    --text: #f4f4f4;
    --dim: #8f8f8f;
    --rule: #242424;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.page {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 24px 120px;
}

/* ---- header ------------------------------------------------------ */

header { padding: 28px 0 0; }

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.wordmark {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
}

.connect {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--text);
  border-radius: 2px;
  padding: 6px 12px;
  white-space: nowrap;
  transition: background 0.12s ease, color 0.12s ease;
}
.connect:hover,
.connect:focus-visible {
  background: var(--text);
  color: var(--bg);
}

nav {
  display: flex;
  gap: 22px;
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
}
nav a {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--dim);
  text-decoration: none;
}
nav a:hover { color: var(--text); }
nav a[aria-current="page"] {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---- content ----------------------------------------------------- */

main { padding-top: 72px; }

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--dim);
  margin: 0 0 18px;
}

h1 {
  font-size: 30px;
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0 0 36px;
}

h2 {
  font-size: 19px;
  line-height: 1.4;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 40px 0 10px;
}

.layer-no {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 4px;
}

p { margin: 0 0 22px; }

/* ---- the hierarchy of data needs --------------------------------- */
/* A left-aligned staircase, Layer 1 first: every tier starts at the same
   edge and runs further right as the maturity grows. Rectangles rather
   than trapezoids, so the text stays horizontal and full size on a phone. */

.pyramid {
  margin: 0 0 48px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.tier {
  display: flex;
  align-items: baseline;
  justify-content: flex-start;
  gap: 12px;
  width: 100%;
  padding: 15px 18px;
  border: 1px solid var(--text);
  font-size: 15px;
  line-height: 1.4;
  text-align: left;
}
.tier-1 { width: 76%; }
.tier-2 { width: 88%; }
.tier-3 { width: 100%; }

.tier-n {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--dim);
  white-space: nowrap;
}

ul, ol {
  margin: 0 0 22px;
  padding-left: 22px;
}
li { margin: 0 0 8px; }
li::marker { color: var(--dim); }

a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
a:hover { text-decoration-thickness: 2px; }

hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 56px 0 36px;
}

footer {
  margin-top: 72px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
}

@media (max-width: 520px) {
  body { font-size: 16px; }
  main { padding-top: 48px; }
  h1 { font-size: 25px; }
  nav { gap: 16px; }
  /* stacking the label over the title, still flush to the left edge */
  .tier { flex-direction: column; align-items: flex-start; gap: 4px; padding: 12px 14px; }
  .tier-1 { width: 86%; }
  .tier-2 { width: 93%; }
}