/* Example site for selfhost — one shared sheet.
   Aesthetic: instrument-panel editorial. Near-black ground, one electric
   cyan, machine text strictly monospace. No external assets anywhere. */

:root {
  --ink: #e8edf2;
  --dim: #8b98a5;
  --ground: #0b0e11;
  --plate: #11161b;
  --line: #232c34;
  --signal: #35e0ff;
  --signal-dim: rgba(53, 224, 255, 0.14);
  --serif: "Iowan Old Style", "Palatino", "Georgia", serif;
  --display: "Avenir Next", "Futura", "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "SF Mono", "Menlo", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--ground);
  color: var(--ink);
  font: 17px/1.65 var(--serif);
  min-height: 100vh;
  /* faint scanline grain, drawn in CSS so the page ships zero images */
  background-image:
    repeating-linear-gradient(0deg, transparent 0 2px, rgba(255,255,255,0.012) 2px 4px);
}

/* ── frame ─────────────────────────────────────────────── */

.frame {
  max-width: 62rem;
  margin: 0 auto;
  padding: 0 1.5rem 6rem;
}

header.masthead {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.4rem 0 1.1rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 4rem;
}

.wordmark {
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: 0.34em;
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
}
.wordmark b { color: var(--signal); font-weight: 600; }

nav a {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--dim);
  text-decoration: none;
  margin-left: 1.6rem;
  letter-spacing: 0.06em;
}
nav a:hover, nav a[aria-current="page"] { color: var(--signal); }

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

.kicker {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 1.2rem;
}
.kicker::before { content: "▮ "; }

h1 {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  max-width: 15ch;
  margin-bottom: 1.6rem;
}
h1 em { font-style: normal; color: var(--signal); }

.lede {
  font-size: 1.15rem;
  color: var(--dim);
  max-width: 44ch;
  margin-bottom: 3rem;
}

/* ── plates ────────────────────────────────────────────── */

.plates { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.plate {
  background: var(--plate);
  padding: 1.5rem 1.4rem 1.6rem;
}
.plate h3 {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 0.7rem;
}
.plate p { font-size: 0.95rem; color: var(--dim); }
.plate p code { color: var(--ink); }

section { margin-top: 4.5rem; }
h2 {
  font-family: var(--display);
  font-weight: 500;
  font-size: 1.6rem;
  margin-bottom: 1rem;
}
p + p { margin-top: 1rem; }
main p { max-width: 60ch; }
main p, main li { color: var(--dim); }
main strong { color: var(--ink); font-weight: 600; }
main ul { padding-left: 1.2rem; margin-top: 0.8rem; }
main li + li { margin-top: 0.45rem; }

code, pre {
  font-family: var(--mono);
  font-size: 0.85em;
}
code { background: var(--signal-dim); color: var(--signal); padding: 0.1em 0.35em; border-radius: 2px; }
pre {
  background: var(--plate);
  border: 1px solid var(--line);
  border-left: 2px solid var(--signal);
  padding: 1.1rem 1.3rem;
  overflow-x: auto;
  margin: 1.2rem 0;
  line-height: 1.7;
}
pre code { background: none; padding: 0; color: var(--ink); }

/* ── the checks table on prove.html ────────────────────── */

table.checks {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 0.82rem;
  margin-top: 1.5rem;
}
.checks th {
  text-align: left;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.68rem;
  color: var(--dim);
  border-bottom: 1px solid var(--line);
  padding: 0.5rem 0.8rem 0.5rem 0;
}
.checks td { border-bottom: 1px solid var(--line); padding: 0.65rem 0.8rem 0.65rem 0; vertical-align: top; }
.checks td.status { white-space: nowrap; }
.ok { color: var(--signal); }
.bad { color: #ff5d5d; }
.pending { color: var(--dim); }

button.run {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: none;
  color: var(--signal);
  border: 1px solid var(--signal);
  padding: 0.7rem 1.6rem;
  cursor: pointer;
  margin-top: 1.6rem;
}
button.run:hover { background: var(--signal-dim); }

footer {
  margin-top: 6rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--dim);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

@media (max-width: 40rem) {
  header.masthead { flex-direction: column; gap: 0.6rem; }
  nav a { margin-left: 0; margin-right: 1.4rem; }
}