/* arc-guide.css — ARC Member Resources guide pages (22 Oct 2026, arc-frontend).
   Used by daily-assistant-guide.html and daily-assistant-technical-guide.html; any later ARC guide reuses it.
   Loaded AFTER arc-tokens.css -> arc-shell.css -> arc-experience.css. Every colour is a token.
   🚨 Every rule is scoped `.arcs-page` because arc-shell.css sets `.arcs-page p, ul, ol { margin: 0 }` at (0,1,1),
      and `.arcs-page button:not(.arcs-btn)` at (0,2,1) — so the copy button is written `.arcs-page button.gd-copy`. */

/* ── THE HEAD (navy band) ─────────────────────────────────────────────── */
.arcs-page .gd-head { max-width: 820px; margin: 0 auto; }
.arcs-page .gd-wrap { padding-top: clamp(28px, 4vw, 52px); }
.arcs-page .gd-title {
  margin: 0; color: var(--arcs-w);
  font-size: clamp(1.9rem, 4.2vw, 3rem); line-height: 1.12; font-weight: 600; letter-spacing: -0.025em;
}
.arcs-page .gd-sub { margin-top: 18px; color: var(--arcs-on-navy); font-size: 1.0625rem; line-height: 1.6; max-width: 62ch; }
.arcs-page .gd-sub a { color: var(--arcs-w); text-underline-offset: 3px; }
.arcs-page .gd-by {margin-top: 22px; color: var(--arcs-on-navy); font-size: var(--arcs-small); line-height: 1.55; }
.arcs-page .gd-by b { color: var(--arcs-w); font-weight: 600; }
.arcs-page .gd-by a { color: var(--arcs-w); text-underline-offset: 3px; }

/* the two-guide switch: Member guide | Technical guide */
.arcs-page .gd-switch { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 10px; }
.arcs-page .gd-switch a {
  display: inline-block; padding: 9px 16px; border-radius: 100px;
  border: 1px solid var(--arcs-hair-2); color: var(--arcs-on-navy);
  font-size: .9rem; font-weight: 500; text-decoration: none;
  transition: background-color .16s ease, color .16s ease;
}
.arcs-page .gd-switch a:hover { color: var(--arcs-w); background: var(--arcs-navy-lift); }
.arcs-page .gd-switch a[aria-current="page"] { background: var(--arcs-w); color: var(--s3-ink); border-color: var(--arcs-w); }

/* ── THE DOCUMENT (paper band, white sheet) ───────────────────────────── */
.arcs-page .gd-doc {
  max-width: 820px; margin: 0 auto;
  background: var(--arcs-w); color: var(--s3-ink);
  border: 1px solid var(--s3-border); border-radius: 14px;
  padding: clamp(20px, 4vw, 44px);
  box-shadow: var(--arcs-shadow-paper);
  line-height: 1.7; font-size: 1.0rem;
  overflow-wrap: anywhere;
}
.arcs-page .gd-doc > :first-child { margin-top: 0; }
.arcs-page .gd-doc h2 {
  margin: 36px 0 10px; color: var(--s3-ink);
  font-size: 1.3rem; line-height: 1.3; font-weight: 600; letter-spacing: -0.015em;
}
.arcs-page .gd-doc p { margin: 0 0 14px; }
.arcs-page .gd-doc ul { margin: 0 0 16px; padding-left: 22px; list-style: disc; }
.arcs-page .gd-doc li { margin: 0 0 7px; }
.arcs-page .gd-doc strong { font-weight: 600; }
.arcs-page .gd-doc a { color: var(--s3-blue-ink); text-underline-offset: 3px; }
.arcs-page .gd-doc code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .88em;
  background: var(--s3-grey); border: 1px solid var(--s3-border); border-radius: 5px; padding: 1px 6px;
}
.arcs-page .gd-meta { color: var(--s3-ink-mid); font-size: var(--arcs-small); margin-bottom: 20px; }
.arcs-page .gd-say { /* a sentence the member types to their assistant */
  margin: 0 0 16px; padding: 12px 16px; border-left: 3px solid var(--s3-gold);
  background: var(--s3-grey); border-radius: 0 8px 8px 0;
}

/* ── COPY BOX: the daily brief, a code block, an endpoint ─────────────── */
.arcs-page .gd-copybox { margin: 4px 0 22px; border: 1px solid var(--s3-border); border-radius: 12px; overflow: hidden; }
.arcs-page .gd-copybar {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px;
  padding: 9px 12px 9px 16px; background: var(--s3-grey); border-bottom: 1px solid var(--s3-border);
}
.arcs-page .gd-copybar__k { flex: 1 1 auto; font-size: var(--arcs-micro); font-weight: 600; color: var(--s3-ink-mid); text-transform: uppercase; letter-spacing: .06em; }
.arcs-page .gd-copybar__k--path { text-transform: none; letter-spacing: 0; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.arcs-page button.gd-copy {
  font: inherit; font-size: .85rem; font-weight: 600; cursor: pointer;
  padding: 7px 14px; border-radius: 8px; border: 0;
  background: var(--s3-navy); color: var(--arcs-w);
}
.arcs-page button.gd-copy:hover { background: var(--arcs-navy-deep); }
.arcs-page .gd-copyst { font-size: var(--arcs-micro); font-weight: 600; color: var(--green-ink); }
.arcs-page .gd-copyst[data-state="fail"] { color: var(--fail); }
.arcs-page .gd-brief { padding: 16px 18px 4px; }
.arcs-page .gd-brief p { margin: 0 0 12px; }
.arcs-page .gd-pre {
  margin: 0; padding: 14px 16px; overflow-x: auto; background: var(--arcs-w);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .86rem; line-height: 1.6;
  white-space: pre; overflow-wrap: normal;
}
.arcs-page .gd-pre--wrap { white-space: pre-wrap; overflow-wrap: anywhere; }

/* ── CREDIT (closes the document) ─────────────────────────────────────── */
.arcs-page .gd-credit {
  margin-top: 34px; padding-top: 18px; border-top: 1px solid var(--s3-border);
  color: var(--s3-ink-mid); font-size: .92rem;
}
.arcs-page .gd-credit b { color: var(--s3-ink); font-weight: 600; }
.arcs-page .gd-next { max-width: 820px; margin: 22px auto 0; display: flex; flex-wrap: wrap; gap: 10px 22px; font-size: .95rem; }
.arcs-page .gd-next a { color: var(--s3-blue-ink); font-weight: 600; text-underline-offset: 3px; }

@media (prefers-reduced-motion: reduce) { .arcs-page .gd-switch a { transition: none; } }