/* BlockBible layout v2 — shared styles. Tokens from thedaily.fm, dark-first. */
:root {
  --bg: #0e1217;
  --bg-2: #1d242e;
  --bg-3: #262f3a;
  --ink: #f2f6fb;
  --ink-2: #c6d0dc;
  --ink-3: #9aa3b2;
  --rule: #38414f;
  --control: #2f3946;
  --accent: #7dd3fc;
  --danger: #f87171;
  --success: #86efac;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --bg-2: #f4f4f2;
    --bg-3: #ebebe9;
    --ink: #111;
    --ink-2: #3d4854;
    --ink-3: #6b6b6b;
    --rule: #e2e2e2;
    --control: #ffffff;
    --accent: #0369a1;
    --danger: #b91c1c;
    --success: #166534;
  }
}

* { box-sizing: border-box; margin: 0; }
html { overflow-y: scroll; scrollbar-gutter: stable; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.mono { font-family: var(--font-mono); }
a { color: inherit; }
a:hover { color: var(--accent); }

.app { max-width: 1100px; width: 100%; margin: 0 auto; padding: 0 15px; }

.site-head { border-bottom: 1px solid var(--rule); }
.site-nav {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 16px; flex-wrap: wrap;
  /* longhands so .app's horizontal 15px padding survives (shorthand would zero it) */
  padding-top: 20px; padding-bottom: 18px;
}
.brand { font-size: 26px; font-weight: 700; text-decoration: none; display: inline-flex; align-items: center; gap: 10px; }
.brand:hover { color: inherit; } /* wordmark is not a hover-accent link */
.brand svg { color: var(--accent); flex: none; }
.site-nav .nav-right { display: flex; align-items: baseline; gap: 18px; }
.site-nav .links { display: flex; gap: 18px; font-size: 15px; }
.site-nav .links a { text-decoration: none; color: var(--ink-2); }
.site-nav .links a:hover { color: var(--accent); }
.site-nav .links a.active { color: var(--ink); font-weight: 600; }
.version-pick {
  font: inherit; font-size: 13px; font-weight: 600; color: var(--ink-2);
  background: var(--control); border: 1px solid var(--rule); border-radius: 6px;
  padding: 3px 6px; cursor: pointer;
}
.version-pick:hover, .version-pick:focus { border-color: var(--accent); color: var(--ink); outline: none; }

.tagline { color: var(--ink-2); font-size: 17px; max-width: 46rem; margin: 0 0 0 31px; }

main { flex: 1; }
/* main carries .app, whose padding shorthand outranks a bare `main` rule */
main.app { padding-top: 35px; padding-bottom: 56px; }

.page-title { font-size: 28px; font-weight: 600; letter-spacing: -0.01em; margin: 8px 0 20px; }
.prose { max-width: 44rem; color: var(--ink-2); }
.prose h2 {
  font-size: 14px; letter-spacing: 0.08em; text-transform: uppercase;
  font-weight: 600; color: var(--ink); margin: 28px 0 8px;
}
.prose p { margin: 0 0 12px; }
.prose pre {
  background: var(--bg-2); border: 1px solid var(--rule); border-radius: 8px;
  padding: 14px 16px; overflow-x: auto;
  font-family: var(--font-mono); font-size: 13px; line-height: 1.6; color: var(--ink);
  margin: 0 0 12px;
}
.prose code { font-family: var(--font-mono); font-size: 0.92em; }

/* ——— per-verse Merkle proof panel (rendered by /verify.js) ——— */
.proof-panel {
  margin: 6px 0 14px; padding: 14px 16px;
  background: transparent; border: 1px solid var(--rule); border-radius: 10px;
  overflow-x: auto;
}
.proof-panel .row {
  display: flex; gap: 10px; white-space: nowrap;
  font-size: 12px; line-height: 1.9; color: var(--ink-3);
  opacity: 0; transform: translateY(4px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.proof-panel .row.shown { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .proof-panel .row { opacity: 1; transform: none; transition: none; }
}
.proof-panel .lbl { width: 3.5em; flex: none; }
.proof-panel .cov { margin-left: auto; padding-left: 16px; }
.proof-panel .h { color: var(--ink); }
.verdict { margin-top: 10px; min-height: 1.5em; font-size: 14px; font-weight: 600; color: var(--success); transition: opacity 0.3s ease; }
.verdict.bad { color: var(--danger); }

footer {
  border-top: 1px solid var(--rule);
  padding: 28px 24px; text-align: center;
  font-size: 13px; color: var(--ink-3);
  margin-top: 40px;
}
footer .claim { max-width: 34rem; margin: 0 auto 12px; color: var(--ink-2); }