/* ============================================================================
   Tacit: inner pages. Paper ground, dark bands where the contrast is the
   point, the same type and docs as the home page.
   ========================================================================== */

body.page {
  --sc-canvas: var(--you-canvas); --sc-surface: var(--you-surface);
  --sc-ink: var(--you-ink); --sc-ink-soft: var(--you-soft);
  --sc-accent: var(--you-accent); --sc-accent-ink: var(--you-canvas);
  --sc-shadow-color: 30 30% 12%;
  --sc-e1: 0 1px 2px hsl(var(--sc-shadow-color) / 0.10), 0 2px 6px -1px hsl(var(--sc-shadow-color) / 0.08);
  --sc-e2: 0 2px 4px hsl(var(--sc-shadow-color) / 0.08), 0 8px 18px -4px hsl(var(--sc-shadow-color) / 0.12);
  --sc-edge: inset 0 1px 0 rgba(255,255,255,0.7);
  background: var(--sc-canvas); color: var(--sc-ink);
}
.page__main { max-width: 72rem; margin-inline: auto; padding: 0 var(--pad) var(--sc-10); }

/* head */
.page__head { padding: clamp(3rem, 8vh, 6rem) 0 clamp(2rem, 5vh, 3.5rem); display: grid; gap: var(--sc-4); }
.page__head .hl--lg { max-width: 16ch; font-size: clamp(2.4rem, 1.4rem + 3.6vw, 5rem); }
.page__head .sc-lede { max-width: 52ch; color: var(--sc-ink-soft); }
.page__head .sc-label { color: var(--sc-accent); }

/* a generic section */
.sec { padding: clamp(2.5rem, 6vh, 4.5rem) 0; border-top: 1px solid var(--sc-hairline-strong); }
.sec > .hl--md { margin-bottom: var(--sc-5); max-width: 24ch; }
.prose { max-width: 62ch; display: grid; gap: var(--sc-4); align-content: start; }
.prose p { margin: 0; text-wrap: pretty; }
.prose p + p { margin-top: 0; }
.prose strong { font-weight: 500; color: var(--sc-ink); }
.prose .sc-body { color: var(--sc-ink); }

/* the dark band */
.band {
  --sc-canvas: var(--any-canvas); --sc-surface: var(--any-surface);
  --sc-ink: var(--any-ink); --sc-ink-soft: var(--any-soft);
  --sc-accent: var(--any-accent); --sc-accent-ink: var(--any-canvas);
  --sc-shadow-color: 220 40% 2%;
  color: var(--sc-ink); background: var(--sc-canvas);
  margin-inline: calc(var(--pad) * -1); padding-inline: var(--pad);
  border-top: 0;
}
.band .hl--md { color: var(--sc-ink); }

/* offer sections on What we do. Not `.stage`: that name belongs to the home
   page's split screen in tacit.css, and sharing it broke the split. */
.offer {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: var(--sc-7);
  padding: clamp(2.5rem, 6vh, 4.5rem) 0; border-top: 1px solid var(--sc-hairline-strong);
  scroll-margin-top: 5rem;
}
.offer__side { position: sticky; top: 5rem; align-self: start; display: grid; gap: var(--sc-3); }
.offer__side .sc-label { color: var(--sc-accent); }
.offer__side .hl--md { font-size: clamp(1.8rem, 1rem + 2.2vw, 3rem); }
.offer__side .dur { margin: 0; font-family: var(--sc-font-mono); font-size: var(--sc-t-sm); color: var(--sc-ink-soft); }
.offer__side .one { margin: 0; color: var(--sc-ink); max-width: 28ch; text-wrap: pretty; }
.spec { margin: 0; display: grid; gap: var(--sc-6); }
.spec > div { display: grid; grid-template-columns: 9rem minmax(0, 1fr); gap: var(--sc-4); border-top: 1px solid var(--sc-hairline); padding-top: var(--sc-4); }
.spec dt { font-family: var(--sc-font-mono); font-size: var(--sc-t-xs); letter-spacing: var(--sc-track-wide); text-transform: uppercase; color: var(--sc-ink-soft); padding-top: 0.3rem; }
.spec dd { margin: 0; max-width: 56ch; text-wrap: pretty; color: var(--sc-ink); }
.spec dd p { margin: 0; }
.spec dd p + p { margin-top: var(--sc-3); }
.deliv { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--sc-3); }
.deliv li { display: grid; gap: 0.2rem; }
.deliv code { font-family: var(--sc-font-mono); font-size: 0.9em; color: var(--sc-ink); background: var(--sc-surface); padding: 0.1em 0.4em; border-radius: 4px; border: 1px solid var(--sc-hairline); display: inline-block; width: max-content; max-width: 100%; }
.deliv span { color: var(--sc-ink-soft); }

/* not-doing list and principles */
.nots, .principles { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--sc-4); max-width: 62ch; }
.nots li, .principles li { display: grid; gap: 0.25rem; padding-left: 1.6rem; position: relative; }
.nots li::before { content: ""; position: absolute; left: 0; top: 0.72em; width: 0.9rem; height: 1px; background: var(--sc-accent); }
.principles { counter-reset: p; }
.principles li::before { counter-increment: p; content: counter(p, decimal-leading-zero); position: absolute; left: 0; top: 0.15em; font-family: var(--sc-font-mono); font-size: var(--sc-t-xs); color: var(--sc-accent); }
.nots strong, .principles strong { font-weight: 500; color: var(--sc-ink); font-family: var(--sc-font-display); font-variation-settings: "opsz" 24; font-size: var(--sc-t-lg); letter-spacing: var(--sc-track-snug); }
.nots span, .principles span { color: var(--sc-ink-soft); text-wrap: pretty; }

/* timeline */
.timeline { list-style: none; margin: 0; padding: 0; display: grid; }
.timeline li { display: grid; grid-template-columns: 8rem minmax(0, 1fr); gap: var(--sc-5); padding: var(--sc-5) 0; border-top: 1px solid var(--sc-hairline); }
.timeline .when { font-family: var(--sc-font-mono); font-size: var(--sc-t-sm); color: var(--sc-accent); padding-top: 0.2rem; }
.timeline .what { display: grid; gap: 0.3rem; max-width: 56ch; }
.timeline .what strong { font-weight: 500; font-family: var(--sc-font-display); font-variation-settings: "opsz" 24; font-size: var(--sc-t-lg); letter-spacing: var(--sc-track-snug); }
.timeline .what span { color: var(--sc-ink-soft); text-wrap: pretty; }

/* tools */
/* Six items, three columns: no empty trailing cell. */
.tools { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--sc-5) var(--sc-6); max-width: 62rem; }
.tools li { display: grid; gap: 0.2rem; border-top: 1px solid var(--sc-hairline); padding-top: var(--sc-3); }
.tools strong { font-weight: 500; }
.tools span { color: var(--sc-ink-soft); font-size: var(--sc-t-sm); }

/* faq */
.faq { display: grid; max-width: 64ch; }
.faq details { border-top: 1px solid var(--sc-hairline-strong); }
.faq details:last-child { border-bottom: 1px solid var(--sc-hairline-strong); }
.faq summary {
  cursor: pointer; list-style: none; padding: var(--sc-4) 2.2rem var(--sc-4) 0; position: relative;
  font-family: var(--sc-font-display); font-variation-settings: "opsz" 24; font-weight: 500;
  font-size: var(--sc-t-lg); letter-spacing: var(--sc-track-snug); line-height: 1.25;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 0.2rem; top: 50%; translate: 0 -50%;
  font-family: var(--sc-font-mono); color: var(--sc-accent); font-size: 1.2rem; line-height: 1;
}
.faq details[open] summary::after { content: "\2212"; }
.faq summary:focus-visible { outline: 2px solid var(--sc-accent); outline-offset: 2px; border-radius: var(--sc-r-sm); }
.faq .ans { padding: 0 0 var(--sc-5); color: var(--sc-ink-soft); max-width: 60ch; display: grid; gap: var(--sc-3); }
.faq .ans p { margin: 0; text-wrap: pretty; }

/* about */
.founder { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--sc-5); align-items: start; max-width: 62ch; border-top: 1px solid var(--sc-hairline-strong); padding-top: var(--sc-5); }
.founder__mark { width: 3.2rem; height: 3.2rem; border-radius: var(--sc-r-sm); background: var(--you-ink); color: var(--you-canvas); display: grid; place-items: center; font-family: var(--sc-font-display); font-weight: 600; }
.founder p { margin: 0; }
.founder .name { font-weight: 500; }
.founder .line { color: var(--sc-ink-soft); margin-top: 0.3rem; }

/* page footer */
.page__foot {
  border-top: 1px solid var(--sc-hairline-strong);
  padding: var(--sc-6) var(--pad); max-width: 72rem; margin-inline: auto;
  display: flex; flex-wrap: wrap; gap: var(--sc-4) var(--sc-6); align-items: baseline;
  font-size: var(--sc-t-xs); color: var(--sc-ink-soft);
}
.page__foot .foot__mark { display: block; height: 18px; width: auto; align-self: center; }
.page__foot nav { display: flex; flex-wrap: wrap; gap: var(--sc-4); }
.page__foot a { color: var(--sc-ink-soft); text-decoration: none; }
.page__foot a:hover, .page__foot a[aria-current="page"] { color: var(--sc-ink); }

/* industries: an index that jumps, one label schema per sector */
.note { margin: 0; font-family: var(--sc-font-mono); font-size: var(--sc-t-xs); color: var(--sc-ink-soft); }
.note::before { content: "› "; color: var(--sc-accent); }
.ind { display: grid; grid-template-columns: 13rem minmax(0, 1fr); gap: var(--sc-8); border-top: 1px solid var(--sc-hairline-strong); }
.ind__index { position: sticky; top: 5rem; align-self: start; padding-top: var(--sc-6); }
.ind__index ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.15rem; }
.ind__index a {
  display: block; padding: 0.4rem 0 0.4rem 0.9rem; position: relative;
  font-size: var(--sc-t-sm); color: var(--sc-ink-soft); text-decoration: none;
  border-left: 1px solid var(--sc-hairline-strong);
  transition: color var(--sc-d-fast) var(--sc-ease-out), border-color var(--sc-d-fast) var(--sc-ease-out);
}
.ind__index a:hover { color: var(--sc-ink); }
.ind__index a[aria-current="true"] { color: var(--sc-ink); border-left: 2px solid var(--sc-accent); padding-left: calc(0.9rem - 1px); font-weight: 500; }
.ind__list { min-width: 0; }
.dossier { padding: var(--sc-6) 0 var(--sc-8); border-bottom: 1px solid var(--sc-hairline-strong); scroll-margin-top: 4.5rem; display: grid; gap: var(--sc-6); }
.dossier:last-of-type { border-bottom: 0; }
.dossier__head { display: grid; gap: var(--sc-2); }
.dossier__head .sc-label { color: var(--sc-accent); }
.dossier__head .hl--md { font-size: clamp(1.7rem, 1rem + 2vw, 2.8rem); max-width: 22ch; }
.dossier__who { margin: 0; color: var(--sc-ink-soft); max-width: 52ch; }
.dossier .spec > div { grid-template-columns: 11rem minmax(0, 1fr); }
.rule { padding: var(--sc-4) var(--sc-5); gap: var(--sc-2); max-width: 44rem; }
/* A list, not a pre: lines wrap at any width with a hanging indent under
   the dash, the way the rule would read in the real SKILL.md. */
.rule__body { margin: 0; padding: 0; list-style: none; display: grid; gap: 0.3rem; color: var(--sc-ink); }
.rule__body li { padding-left: 2ch; text-indent: -2ch; text-wrap: pretty; }
.rule__body li::before { content: "- "; color: var(--sc-ink-soft); }
.ind__also { margin: 0; padding: var(--sc-6) 0; color: var(--sc-ink-soft); max-width: 60ch; border-top: 1px solid var(--sc-hairline-strong); }

/* two-up blocks */
.twoup { display: grid; grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr)); gap: var(--sc-6); }

/* --------------------------------------------------------------- mobile -- */
@media (max-width: 860px) {
  .offer { grid-template-columns: 1fr; gap: var(--sc-5); }
  .offer__side { position: static; }
  .spec > div { grid-template-columns: 1fr; gap: var(--sc-2); }
  .timeline li { grid-template-columns: 1fr; gap: var(--sc-2); }
  .tools { grid-template-columns: 1fr; }
  .page__head .hl--lg { font-size: clamp(2rem, 1.2rem + 4vw, 2.8rem); }
  /* The index becomes a wrapped list of jump links at the top. */
  .ind { grid-template-columns: 1fr; gap: 0; }
  .ind__index { position: static; padding: var(--sc-5) 0; border-bottom: 1px solid var(--sc-hairline-strong); }
  .ind__index ol { display: flex; flex-wrap: wrap; gap: 0.4rem; }
  .ind__index a { border: 1px solid var(--sc-hairline-strong); border-radius: var(--sc-r-sm); padding: 0.35rem 0.6rem; font-size: var(--sc-t-xs); }
  .ind__index a[aria-current="true"] { border: 1px solid var(--sc-accent); padding: 0.35rem 0.6rem; }
  .dossier .spec > div { grid-template-columns: 1fr; }
  .rule { padding: var(--sc-3) var(--sc-4); font-size: 0.7rem; }
}