/* Case-study pages (ADR 0006). Loaded after style.css. Tokens only: no colour values here. */

/* header block */
.case-hero{padding-top:48px;padding-bottom:32px;display:grid;gap:20px;justify-items:start}
.case-hero .display{max-width:18ch}
.case-hero .lead{max-width:40rem}
.case-hero .tags{margin-top:0}
@media (min-width:900px){.case-hero{padding-top:80px;padding-bottom:48px;gap:24px}}

/* sections: heading column + content column on wide screens */
.cs{display:grid;gap:16px;padding-top:40px;padding-bottom:40px;border-top:1px solid var(--rule)}
.cs-h{font:500 1.375rem/1.25 var(--display);letter-spacing:-.01em}
.cs .prose{max-width:40rem}
.cs .prose p+p{margin-top:0}
@media (min-width:900px){
  .cs{grid-template-columns:3fr 9fr;gap:48px;padding-top:56px;padding-bottom:56px}
  .cs-h{font-size:1.5rem;position:sticky;top:80px;align-self:start}
}

/* architecture diagram */
.diagram{margin:0;display:grid;gap:12px}
.diagram svg{width:100%;height:auto;max-width:720px;color:var(--ink);font-family:var(--sans)}
.diagram .box{fill:var(--surface);stroke:var(--rule);stroke-width:1.5}
.diagram .box.hl{stroke:var(--accent);stroke-width:2.5}
.diagram .edge{fill:none;stroke:var(--muted);stroke-width:1.5}
.diagram .edge.dash{stroke-dasharray:5 5}
.diagram .arrow{fill:var(--muted)}
.diagram .lbl{fill:currentColor;font-size:22px;font-weight:600}
.diagram .sub{fill:var(--muted);font-size:18px;font-weight:400}
.diagram .tag{fill:var(--accent);font-size:17px;font-weight:600}
.diagram figcaption,.screen figcaption{font-size:.875rem;color:var(--muted);max-width:40rem}

/* decisions */
.decisions{border-top:1px solid var(--rule)}
.decisions li{display:grid;gap:4px;padding:16px 0;border-bottom:1px solid var(--rule)}
.decisions strong{font-weight:600}
.decisions span{color:var(--muted);font-size:.9375rem}

/* results */
.results{display:grid;gap:0;border-top:1px solid var(--rule)}
.results li{display:grid;gap:4px;padding:16px 0;border-bottom:1px solid var(--rule)}
.results .fig{font-size:1.25rem;line-height:1.2;color:var(--ink)}
.results .how{font-size:.9375rem;color:var(--muted)}
@media (min-width:600px){.results li{grid-template-columns:15rem 1fr;gap:24px;align-items:baseline}}
.fine{font-size:.875rem;color:var(--muted);margin-top:16px;max-width:40rem}

/* screens */
.screens{display:grid;gap:32px}
.screen{display:grid;gap:12px}
.screen picture{display:block;border:1px solid var(--rule);border-radius:8px;overflow:hidden;background:var(--paper)}
.screen img{width:100%;aspect-ratio:16/10}
@media (min-width:900px){.screens{grid-template-columns:1fr 1fr;gap:40px 32px}}

/* next steps */
.later{display:grid;gap:12px;padding-left:20px;max-width:40rem}

/* prev / next */
.case-nav{display:grid;gap:12px;padding-top:40px;padding-bottom:24px;border-top:1px solid var(--rule)}
.case-nav a{display:grid;gap:4px;min-height:44px;padding:16px;border:1px solid var(--rule);border-radius:10px;text-decoration:none;color:var(--ink);transition:border-color .18s ease-out}
.case-nav a:hover{border-color:var(--accent)}
.case-nav .t{font:500 1.125rem/1.3 var(--display)}
.case-nav .back{align-content:center;justify-items:center;color:var(--accent);font-weight:500}
@media (min-width:700px){
  .case-nav{grid-template-columns:1fr auto 1fr;align-items:stretch}
  .case-nav .next{text-align:right}
}
.cs code{white-space:nowrap}