/* Ontology-spec site — Yuwakisa house style.
   Constants are named in ONTOLOGY.md §6: COLUMN, ACCENT_FROM, ACCENT_TO, PAGE_BG. */

:root {
  --accent-from: #32CD32;
  --accent-to: #00BFFF;
  --page-bg: #fafafa;
  --ink: #222;
  --ink-strong: #111;
  --ink-soft: #52514e;
  --ink-softer: #666;
  --rule: #e4e4e1;
}

* { box-sizing: border-box; }

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  max-width: 60rem;
  margin: 0 auto;
  padding: 0 1rem 4rem;
  color: var(--ink);
  background: var(--page-bg);
  line-height: 1.6;
}

/* Nav — identical on every page; the current page is plain text, not a link. */
.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem 1.1rem;
  padding: 1.1rem 0 0.9rem;
  border-bottom: 1px solid var(--rule);
  font-size: 0.92rem;
}
.nav a { color: #0a6ebd; text-decoration: none; }
.nav a:hover { text-decoration: underline; }
.nav .here { font-weight: 600; color: var(--ink-strong); }
.nav .home { margin-right: auto; font-weight: 600; letter-spacing: 0.02em; }
.nav .home a { color: var(--ink-strong); }

/* Page head */
.head { margin: 2.6rem 0 2rem; }
.head h1 {
  font-size: 2rem;
  line-height: 1.15;
  font-weight: 700;
  margin: 0 0 0.7rem;
  color: var(--ink-strong);
}
.standfirst {
  font-size: 1.12rem;
  color: #444;
  max-width: 44rem;
  margin: 0;
  line-height: 1.5;
}

h2 {
  font-size: 1.25rem;
  line-height: 1.25;
  color: var(--ink-strong);
  margin: 2.6rem 0 0.8rem;
}
h3 { font-size: 1.02rem; margin: 1.8rem 0 0.4rem; color: var(--ink-strong); }
p { max-width: 46rem; }
a { color: #0a6ebd; }

/* Cards, the house motif: white, gradient left edge */
.card {
  background: #fff;
  border-left: 4px solid transparent;
  border-image: linear-gradient(180deg, var(--accent-from), var(--accent-to)) 1;
  border-radius: 4px;
  padding: 1.2rem 1.5rem;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
  margin: 1.2rem 0;
}
.card h3 { margin-top: 0; }
.card p:last-child { margin-bottom: 0; }
.cards { display: grid; grid-template-columns: 1fr; gap: 1.1rem; margin: 1.4rem 0; }

/* Pull-quote for the load-bearing sentence of a page */
.pull {
  font-size: 1.18rem;
  line-height: 1.5;
  color: var(--ink-strong);
  border-left: 4px solid transparent;
  border-image: linear-gradient(180deg, var(--accent-from), var(--accent-to)) 1;
  padding: 0.2rem 0 0.2rem 1.2rem;
  margin: 1.8rem 0;
  max-width: 44rem;
}

table { border-collapse: collapse; width: 100%; margin: 1.2rem 0; font-size: 0.94rem; }
th, td { text-align: left; padding: 0.55rem 0.7rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { color: var(--ink-strong); font-weight: 600; background: #f3f3f1; }

code {
  font-family: Consolas, 'Courier New', monospace;
  font-size: 0.92em;
  background: #f0f0ee;
  padding: 0.1em 0.32em;
  border-radius: 3px;
}

.tag {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.12rem 0.45rem;
  border-radius: 3px;
  background: #eef6ec;
  color: #2b6b2b;
  vertical-align: 0.1em;
}
.tag.p { background: #eef2f8; color: #2b4e7b; }
.tag.t { background: #f7f2e8; color: #7b5a2b; }

/* Prompts page */
.prompt { margin: 1.5rem 0 2.2rem; }
.prompt .phase {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.prompt h3 { margin: 0.15rem 0 0.6rem; }
.promptbox {
  position: relative;
  background: #fff;
  border: 1px solid var(--rule);
  border-left: 4px solid transparent;
  border-image: linear-gradient(180deg, var(--accent-from), var(--accent-to)) 1;
  border-radius: 4px;
  padding: 0.95rem 5.6rem 0.95rem 1.1rem;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}
.promptbox pre {
  margin: 0;
  font-family: Consolas, 'Courier New', monospace;
  font-size: 0.9rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  color: #1c1c1c;
}
.promptbox button {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  color: #fff;
  background-image: linear-gradient(45deg, var(--accent-from), var(--accent-to));
  border: none;
  border-radius: 3px;
  padding: 0.33rem 0.7rem;
  cursor: pointer;
  transition: opacity 0.15s ease;
}
.promptbox button:hover { opacity: 0.86; }
.meta { margin: 0.7rem 0 0; font-size: 0.93rem; color: #3b3b3b; max-width: 46rem; }
.meta b { color: var(--ink-strong); }
.meta.prevents { color: var(--ink-soft); }

/* Exit — the named reason to go to a specific next page */
.exit {
  margin: 3rem 0 0;
  padding: 1.2rem 1.5rem;
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 4px;
}
.exit p { margin: 0; max-width: 46rem; }
.exit p + p { margin-top: 0.6rem; }

.footer {
  margin-top: 3.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--rule);
  font-size: 0.88rem;
  color: var(--ink-softer);
}
.footer p { margin: 0.25rem 0; max-width: none; }

.note { color: var(--ink-soft); }
.small { font-size: 0.9rem; }

@media (min-width: 46rem) {
  .cards.two { grid-template-columns: 1fr 1fr; }
  .cards.three { grid-template-columns: repeat(3, 1fr); }
}