/* ---- shared subpage components: research, use cases, docs, about ----
   Loaded after styles.css. Uses the same tokens; adds page-level building blocks only. */

.crumbs{display:flex;gap:8px;align-items:center;margin-bottom:26px;font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint)}
.crumbs a:hover{color:var(--ink)}
.crumbs i{font-style:normal;opacity:.5}

/* page hero — use as <section class="sec band phero"> for the dot texture */
.phero{padding-block:clamp(64px,8vw,112px) clamp(56px,6vw,88px)}
.phero .w{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:clamp(26px,4vw,64px);align-items:end}
.phero h1{font-weight:500;letter-spacing:-.035em;line-height:1;font-size:clamp(40px,5.8vw,78px);max-width:16ch}
.phero .lead{font-size:17px;line-height:1.6;color:var(--soft);max-width:44ch}
.phero .meta{margin-top:22px;border-top:1px solid var(--ink)}
.phero .meta div{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--rule);font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;color:var(--soft)}
.phero .meta b{font-weight:500;color:var(--ink)}

/* section heading row for subpages: title left, label right, ink rule under */
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:clamp(26px,3vw,40px);padding-bottom:14px;border-bottom:1px solid var(--ink)}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:500;letter-spacing:-.026em;line-height:1.1}
.sec-head .lab{white-space:nowrap}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(14px,1.6vw,22px)}
.cards.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{display:flex;flex-direction:column;gap:10px;padding:clamp(18px,2vw,26px);background:var(--card);border:1px solid var(--rule);border-radius:3px;transition:border-color .3s,transform .3s var(--ease)}
a.card:hover{border-color:var(--ink);transform:translateY(-2px)}
.card.gd{border-color:var(--gold-2)}
.card h3{font-size:19px;font-weight:500;letter-spacing:-.02em;line-height:1.2}
.card p{font-size:14px;line-height:1.55;color:var(--soft)}
.card .foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--rule-2);display:flex;justify-content:space-between;gap:10px;font-family:var(--mono);font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint)}

/* status dot: live (green) · wip (gold) · open (blue) */
.status{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--soft)}
.status i{width:6px;height:6px;border-radius:50%;background:var(--faint)}
.status.live i{background:var(--green)}
.status.wip i{background:var(--gold-2)}
.status.open i{background:var(--blue)}

/* filter pills */
.pill-tabs{display:flex;flex-wrap:wrap;gap:6px}
.pill-tabs button{border:1px solid var(--rule);background:transparent;cursor:pointer;color:var(--soft);font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;font-size:9.5px;padding:6px 12px;border-radius:100px;transition:background .25s,color .25s,border-color .25s}
.pill-tabs button:hover{border-color:var(--ink)}
.pill-tabs button[aria-selected="true"]{background:var(--ink);border-color:var(--ink);color:var(--paper)}

/* long-form text (docs, research notes, about story) */
.prose{max-width:68ch;font-size:16px;line-height:1.7;color:var(--ink-2)}
.prose h2{margin:48px 0 14px;font-size:clamp(24px,2.4vw,30px);font-weight:500;letter-spacing:-.024em;line-height:1.15;scroll-margin-top:90px}
.prose h2:first-child{margin-top:0}
.prose h3{margin:32px 0 10px;font-size:18px;font-weight:500;letter-spacing:-.016em;scroll-margin-top:90px}
.prose p{margin:0 0 16px;color:var(--soft)}
.prose ul,.prose ol{margin:0 0 18px;padding-left:20px;color:var(--soft)}
.prose li{margin:6px 0}
.prose strong{font-weight:500;color:var(--ink)}
.prose a{color:var(--ink);border-bottom:1px solid var(--gold-2)}
.prose code{font-family:var(--mono);font-size:.86em;background:var(--paper-2);border:1px solid var(--rule-2);border-radius:3px;padding:1px 5px;color:var(--ink)}
.prose pre{margin:0 0 20px;padding:16px 18px;overflow-x:auto;background:var(--night);color:var(--n-text);border-radius:3px;font-family:var(--mono);font-size:12.5px;line-height:1.75}
.prose pre code{background:none;border:0;padding:0;color:inherit;font-size:inherit}
.prose pre .c{color:var(--n-faint)}
.prose pre .s{color:#E0965A}
.prose pre .k{color:#C97A40}
.callout{margin:0 0 20px;padding:14px 16px;background:var(--card);border:1px solid var(--rule);border-left:3px solid var(--gold-2);border-radius:3px;font-size:14.5px;color:var(--soft)}
.callout b{font-weight:500;color:var(--ink)}

@media (max-width:1040px){
  .phero .w{grid-template-columns:1fr;align-items:start}
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:680px){
  .cards,.cards.two{grid-template-columns:1fr}
  .sec-head{flex-direction:column;align-items:flex-start}
}