/* Validated.Directory 2.0.0 · How does an AI assistant pick a local business? (DIR 2.0.0 part D, BEA-432). Loads after
   /learn/_guide/guide.css. The main act is a trail, a cousin of Scout's: one customer's question at the trailhead, the
   AI's reading running out as light to three made-up plumbers, their facts compared, two left out, and the light coming
   back with the one it can name. Steps follow the scroll and reverse; only opacity and transform move. Motion only under
   html.m. Reduced motion and scripts off: the five steps as a list and the map at its end. */

.pk { position: relative; z-index: 1; padding-top: 28px; }
.pk-head h2 { margin-top: 12px; max-width: 18ch; font-size: clamp(30px, 7.6vw, 46px); line-height: 1.08; color: var(--ink); }
.pk-stage { position: relative; overflow: hidden; }
.pk-fx { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.pk-in { position: relative; display: grid; grid-template-columns: minmax(0, 1fr); gap: 22px; padding-top: 26px; padding-bottom: 40px; }

/* The words: the sample line, the five steps, their ticks. */
.pk-sample { justify-self: start; padding: 6px 9px 7px; background: var(--paper-hi); border: 1px solid var(--ink); font: 500 12px/1.45 var(--mono); color: var(--ink); }
.pk-steps { display: grid; gap: 16px; margin-top: 16px; }
.pk-steps li { display: grid; gap: 4px; }
.pk-n { font: 500 12px/1.4 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-2); }
.pk-k { font: 400 clamp(24px, 6.4vw, 30px)/1.12 var(--display); color: var(--ink); }
.pk-t { max-width: 34ch; font: 400 16px/1.48 var(--sans); color: var(--ink); }
.pk-tk { display: none; }

/* The map: the question card, then the three plumbers. */
.pk-map { position: relative; }
.pk-q { position: relative; display: grid; padding: 12px 14px 14px; background: var(--night); color: var(--cream); border: 1px solid var(--night); box-shadow: 0 24px 40px -30px rgba(35, 31, 26, 0.75); --cm: rgba(35, 31, 26, 0.7); }
.pk-q > div { display: grid; gap: 4px; align-content: start; }
.pk-q > div + div { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--rule); }
.pk-qk { font: 500 12px/1.4 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--cream-2); }
.pk-qa { font: 400 clamp(19px, 5.2vw, 23px)/1.22 var(--display); }
.pk-qa b { font: 500 0.82em/1 var(--mono); color: var(--gold-bright); white-space: nowrap; }
.pk-cards { display: grid; gap: 12px; margin: 22px 0 0 42px; }
.pk-c { padding: 9px 11px 11px; background: var(--paper-hi); border: 1px solid var(--ink-2); box-shadow: 0 20px 34px -30px rgba(35, 31, 26, 0.8); --cm: rgba(35, 31, 26, 0.55); }
.pk-ck { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.pk-name { min-width: 0; max-width: 100%; font: 400 19px/1.1 var(--display); color: var(--ink); overflow-wrap: anywhere; }
.pk-st { display: grid; justify-items: end; }
.pk-st span { grid-area: 1 / 1; padding: 2px 6px 3px; border: 1px solid currentColor; font: 500 11px/1.3 var(--mono); letter-spacing: 0; text-transform: uppercase; }
.pk-st .ok { color: var(--gold-ink); }
.pk-st .no { color: var(--barn); }
.pk-st .win { color: var(--ink); background: var(--gold-bright); border-color: var(--gold-ink); }
.pk-st span:not(:last-child) { visibility: hidden; }
.pk-cells { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.2fr); gap: 4px; margin-top: 8px; }
.pk-cells > div { position: relative; min-width: 0; max-width: 100%; padding: 3px 6px 4px; border: 1px solid rgba(35, 31, 26, 0.22); }
.pk-cells > div::after { content: ""; position: absolute; inset: -1px; pointer-events: none; border: 1px solid var(--gold-ink); background: rgba(244, 196, 90, 0.34); }
.pk-cells .bad::after { border-color: var(--barn); background: repeating-linear-gradient(135deg, rgba(166, 75, 59, 0.2) 0 3px, transparent 3px 7px); }
.pk-cells :is(.pic, .none)::after { border: 1px dashed rgba(35, 31, 26, 0.5); background: none; }
.pk-cells dt { position: relative; z-index: 1; min-width: 0; max-width: 100%; font: 400 12px/1.3 var(--mono); color: var(--ink-2); }
.pk-cells dd { position: relative; z-index: 1; display: flex; align-items: center; flex-wrap: wrap; gap: 5px; min-width: 0; max-width: 100%; margin: 1px 0 0; font: 500 12.5px/1.3 var(--mono); color: var(--ink); overflow-wrap: anywhere; }
.pk-cells .bad dd::after { content: ""; position: absolute; left: -2px; right: -2px; top: 52%; height: 1.5px; background: var(--barn); }
.pk-cells :is(.pic, .none) dd { color: var(--ink-2); }
.pk-c[data-who="1"] :is(.pk-name, .pk-cells), .pk-c[data-who="2"] :is(.pk-name, .pk-cells) { opacity: 0.78; }

/* With motion: the stage pins and the steps take turns. JS sets s1 to s5 on the stage (s3 means step 3 or later) and
   .read on a plumber once the light reaches it. */
.m .pk-track { height: calc(100svh * 4.8); }
.m .pk-stage { position: sticky; top: 0; height: 100svh; }
.m .pk-in { height: 100%; align-content: center; padding-top: 70px; padding-bottom: 22px; gap: 18px; }
.m .pk-steps { margin-top: 12px; }
.m .pk-steps li { grid-area: 1 / 1; opacity: 0; transform: translateY(6px); transition: opacity 0.35s, transform 0.35s; }
.m .pk-steps li.on { opacity: 1; transform: none; }
.m .pk-tk { display: flex; gap: 6px; margin-top: 12px; }
.pk-tk i { width: 22px; height: 3px; background: rgba(35, 31, 26, 0.2); }
.pk-tk i.on { background: var(--gold-ink); }

.m .pk-q { background: var(--paper-hi); color: var(--ink); border-color: var(--ink); }
.m .pk-q::after { content: ""; position: absolute; inset: -1px; background: var(--night); opacity: 0; transition: opacity 0.5s; }
.m .pk-q > div { grid-area: 1 / 1; z-index: 1; margin: 0; padding: 0; border: 0; transition: opacity 0.4s; }
.m .pk-ask .pk-qk { color: var(--ink-2); }
.m .pk-ans { opacity: 0; color: var(--cream); }
.m .pk-stage.done .pk-q::after, .m .pk-stage.done .pk-ans { opacity: 1; }
.m .pk-stage.done .pk-ask { opacity: 0; }

.m .pk-c :is(.pk-name, .pk-cells) { opacity: 0.78; transition: opacity 0.4s; }
.m .pk-c.read :is(.pk-name, .pk-cells) { opacity: 1; }
.m .pk-cells dd { opacity: 0; transform: translateY(3px); transition: opacity 0.3s, transform 0.3s; }
.m .pk-c.read .pk-cells dd { opacity: 1; transform: none; }
.m .pk-c.read .pk-cells > div:nth-child(2) dd { transition-delay: 0.08s; }
.m .pk-c.read .pk-cells > div:nth-child(3) dd { transition-delay: 0.16s; }
.m .pk-cells > div::after { opacity: 0; transition: opacity 0.4s; }
.m .s3 .pk-cells > div::after { opacity: 1; }
.m .pk-cells .bad dd::after { transform: scaleX(0); transform-origin: left; transition: transform 0.4s 0.15s; }
.m .s3 .pk-cells .bad dd::after { transform: none; }
.m .pk-st span { visibility: visible; opacity: 0; transition: opacity 0.3s; }
.m .pk-st span.on { opacity: 1; }
.m .s4 .pk-c[data-who="1"] :is(.pk-name, .pk-cells), .m .s4 .pk-c[data-who="2"] :is(.pk-name, .pk-cells) { opacity: 0.78; }

/* Small phones: tighter cards, so the whole map fits a short screen. */
@media (max-width: 360px) {
  .pk-cards { margin-left: 36px; gap: 10px; }
  .pk-c { padding: 8px 9px 9px; }
  .pk-cells { gap: 3px; }
  .pk-cells > div { padding: 3px 4px 4px; }
  .pk-name { font-size: 18px; }
  .pk-t { font-size: 15.5px; }
}
@media (max-height: 700px) and (max-width: 899px) {
  .m .pk-in { padding-top: 62px; gap: 12px; }
  .m .pk-steps { margin-top: 8px; }
  .pk-k { font-size: 23px; }
  .pk-cards { margin-top: 16px; gap: 9px; }
  .pk-q { padding: 9px 12px 11px; }
  .pk-qa { font-size: 19px; }
}

/* Laptops: the words on the left, the map on the right, the plumbers spread across the land. */
@media (min-width: 900px) {
  .pk { padding-top: 56px; }
  .pk-in { grid-template-columns: minmax(300px, 380px) minmax(0, 760px); column-gap: clamp(40px, 6vw, 96px); align-items: center; justify-content: space-between; }
  .pk-k { font-size: clamp(32px, 3vw, 40px); }
  .pk-t { font-size: 19px; }
  .pk-sample { font-size: 12.5px; }
  .pk-q { width: min(540px, 100%); margin-inline: auto; padding: 16px 20px 18px; }
  .pk-qa { font-size: 27px; }
  .pk-cards { grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: start; gap: 22px; margin: 160px 0 0; }
  .pk-c { padding: 12px 14px 14px; }
  .pk-c[data-who="1"] { margin-top: 78px; }
  .pk-c[data-who="2"] { margin-top: 28px; }
  .pk-ck { flex-wrap: wrap; row-gap: 6px; }
  .pk-name { font-size: 23px; }
  .pk-cells { grid-template-columns: 1fr; gap: 5px; margin-top: 11px; }
  .pk-cells > div { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 2px 8px; padding: 5px 8px 6px; }
  .pk-cells dt { font-size: 12.5px; }
  .pk-cells dd { margin: 0; font-size: 14px; }
  .m .pk-in { padding-top: 84px; padding-bottom: 40px; }
}

/* The checklist (2026-10-25): the short version, set like the key points, numbered. The depth is beargrassai.com's lesson,
   linked once at its end (BGA 70: no copied words between the two sites). */
.g-list ol { max-width: 780px; margin-top: 14px; border-top: 1px solid rgba(35, 31, 26, 0.3); gap: 0; }
.g-sec.g-list li { max-width: none; }
.g-list ol > li { padding: 13px 0 14px 40px; border-bottom: 1px solid var(--rule-ink); }
.g-list ol > li::before { top: calc(13px + 0.18em); }
.g-list ol + p { margin-top: 20px; }