/* ============================================================================
   case.css — project case-study pages
   ========================================================================== */

.case { padding-top: clamp(1.5rem, 4vw, 2.5rem); }

/* ---- Hero ---- */
.case-back {
  display: inline-flex; align-items: center; gap: 0.4em;
  font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--text-mute);
  letter-spacing: 0.08em; margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
  transition: color var(--t), gap var(--t);
}
.case-back:hover { color: var(--proj-ink, var(--accent)); gap: 0.7em; }
/* 2-col top: hero text beside the screenshot (stacks on mobile). Keeps the fold tight so you see
   the work without scrolling. Degrades safely — a page without the .case-top wrapper stays a compact
   single column via the .case-shot fallback margin below. */
.case-top { display: grid; grid-template-columns: 1fr; gap: clamp(1.5rem, 4vw, 2.3rem); align-items: center; }
@media (min-width: 880px) { .case-top { grid-template-columns: 1fr 1.06fr; gap: clamp(2rem, 4vw, 3.4rem); } }   /* same breakpoint as .case-body — the whole case layout goes two-column together */
.case-title { font-family: var(--font-display); font-size: clamp(2.4rem, 1.4rem + 4.2vw, 4.25rem); font-weight: var(--w-display); line-height: 0.98; letter-spacing: -0.04em; margin-top: 1rem; }
.case-tagline { font-family: var(--font-display); font-weight: 500; font-size: var(--fs-lg); line-height: 1.28; color: var(--text-dim); max-width: 34ch; margin-top: clamp(0.8rem, 1.6vw, 1.1rem); text-wrap: balance; }
.case-meta { margin-top: clamp(1.1rem, 2.4vw, 1.5rem); display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 0.9rem; font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--text-mute); }
.case-meta .sep { color: var(--border-strong); }
.case-meta a { color: var(--proj-ink, var(--accent)); display: inline-flex; align-items: center; gap: 0.35em; font-weight: 500; }
.case-meta a .arrow { transition: transform var(--t) var(--ease); }
.case-meta a:hover .arrow { transform: translate(2px, -2px); }

/* ---- Visual ---- */
.case-shot { margin-top: clamp(1.5rem, 3vw, 2.5rem); }   /* fallback gap when NOT inside .case-top */
.case-top .case-shot { margin-top: 0; }
.case-shot__frame {
  border: 1px solid var(--border); border-radius: var(--r-xl); overflow: hidden;
  box-shadow: var(--shadow-3); background: var(--surface-2);
  aspect-ratio: 16 / 10; max-height: min(56vh, 520px);
}
.case-shot__frame img { width: 100%; height: 100%; object-fit: cover; object-position: top center; display: block; }
.case-shot figcaption { margin-top: 0.7rem; font-family: var(--font-mono); font-size: var(--fs-2xs); color: var(--text-mute); letter-spacing: 0.06em; text-align: center; }

/* CSS-rendered visuals (no public screenshot) */
.viz { position: relative; width: 100%; height: 100%; display: grid; place-items: center; overflow: hidden; }
/* generic branded tile for mini case studies that have no screenshot */
.viz--mini { background: radial-gradient(130% 100% at 32% 22%, color-mix(in srgb, var(--proj, var(--accent)) 26%, var(--surface)) 0%, var(--surface-2) 54%, var(--bg) 100%); }
.viz--mini::after { content: ""; position: absolute; inset: 0; background-image: radial-gradient(color-mix(in srgb, var(--proj, var(--accent)) 18%, transparent) 1px, transparent 1.5px); background-size: 22px 22px; opacity: 0.4; }
.viz--mini .viz__mark { position: relative; z-index: 1; font-family: var(--font-display); font-optical-sizing: none; font-weight: var(--w-display); font-size: clamp(1.9rem, 7vw, 3.2rem); color: var(--proj-ink, var(--accent)); letter-spacing: -0.03em; text-align: center; padding: 0 1rem; }

/* ---- Body grid ---- */
.case-body { display: grid; grid-template-columns: 1fr; gap: clamp(2rem, 5vw, 3.5rem); padding-block: clamp(3rem, 7vw, 5rem); }
@media (min-width: 880px) { .case-body { grid-template-columns: 0.42fr 1fr; gap: clamp(2.5rem, 5vw, 4.5rem); } }

.case-aside { align-self: start; }
@media (min-width: 880px) { .case-aside { position: sticky; top: calc(var(--nav-h) + 1.5rem); } }
.fact + .fact { margin-top: 1.1rem; padding-top: 1.1rem; border-top: 1px solid var(--border); }
.fact__label { font-family: var(--font-mono); font-size: var(--fs-2xs); letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--text-mute); margin-bottom: 0.4rem; }
.fact__value { font-family: var(--font-sans); font-size: var(--fs-sm); color: var(--text); line-height: 1.5; }
.fact__value .chip { margin: 0.2rem 0.2rem 0 0; display: inline-block; }

/* ---------- Project seal — a spinning signature stamp centered in the prev/next row (sits on the
   line, no extra height). Core seal styles live in base.css; case pages only shrink it. ---------- */
.case-seal { display: flex; align-items: center; justify-content: center; padding: 0 clamp(1rem, 3vw, 2.75rem); }
.seal { width: clamp(66px, 8vw, 94px); }

.case-content > .case-section + .case-section { margin-top: clamp(2.5rem, 6vw, 4rem); }
.case-section__head { display: flex; align-items: baseline; gap: 0.7rem; margin-bottom: 1.25rem; }
.case-section__n { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--proj-ink, var(--accent)); }
.case-section h2 { font-size: var(--fs-2xl); font-weight: var(--w-display); letter-spacing: -0.025em; }
.case-section .prose { font-size: var(--fs-lg); line-height: 1.6; max-width: 60ch; }

/* highlights */
.highlights { margin-top: 0.5rem; }
.highlight { padding: 1.25rem 0.6rem 1.25rem 0.9rem; border-top: 1px solid var(--border); display: grid; grid-template-columns: auto 1fr; gap: 0.4rem 1.1rem; position: relative; transition: background var(--t); }
.highlight::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: linear-gradient(180deg, transparent, var(--proj, var(--accent)) 50%, transparent); transform: scaleY(0); transform-origin: center; transition: transform var(--t-slow) var(--ease-out); }
.highlight:hover { background: color-mix(in srgb, var(--proj) 5%, transparent); }
.highlight:hover::before { transform: scaleY(1); }
.highlight:last-child { border-bottom: 1px solid var(--border); }
.highlight__n { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--proj-ink, var(--accent)); padding-top: 0.3rem; }
.highlight h3 { font-family: var(--font-display); font-weight: var(--w-heading); font-size: var(--fs-lg); letter-spacing: -0.02em; line-height: 1.2; }
.highlight p { grid-column: 2; color: var(--text-dim); font-size: var(--fs-base); line-height: var(--lh-prose); max-width: 58ch; }

/* stat strip — small, contextual "by the numbers" (not big cards), animated count-up */
.case-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem 1rem; padding: 1.75rem 0; border-block: 1px solid var(--border); }
@media (min-width: 640px) { .case-stats { grid-template-columns: repeat(4, 1fr); } }
.stat__num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; color: var(--text); letter-spacing: -0.01em; }
.stat__num b { font-weight: inherit; }
.stat__label { font-family: var(--font-sans); font-size: var(--fs-xs); color: var(--text-mute); margin-top: 0.25rem; line-height: 1.35; }
.case-stats .stat__num { font-size: var(--fs-2xl); }
.case-stats .stat__num b { color: var(--proj-ink, var(--accent)); }

/* prev / next */
.case-nav { border-top: 1px solid var(--border); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; }
.case-nav a { padding: clamp(1.75rem, 4vw, 2.75rem) 0; display: flex; flex-direction: column; gap: 0.4rem; transition: color var(--t); }
.case-nav a:hover { color: var(--proj-ink, var(--accent)); }
.case-nav .dir { font-family: var(--font-mono); font-size: var(--fs-2xs); letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--text-mute); }
.case-nav .name { font-family: var(--font-display); font-size: var(--fs-xl); font-weight: var(--w-heading); letter-spacing: -0.02em; }
.case-nav a.next { text-align: right; align-items: flex-end; padding-left: 1.5rem; }
.case-nav a.prev { padding-right: 1.5rem; }
/* mobile: tighten the fold (desktop airiness reads as dead space on phones) and swap the
   centered seal for a plain prev/next divider — it would crowd the two links */
@media (max-width: 600px) {
  .case { padding-top: 0.9rem; }
  .case-back { margin-bottom: 0.9rem; }
  .case-body { padding-block: 2.25rem 3rem; }
  .case-nav { grid-template-columns: 1fr 1fr; }
  .case-seal { display: none; }
  .case-nav a.next { border-left: 1px solid var(--border); }
}