/* ==================================================================
   RYCODE GRC — case study styles
   Sits on top of ../styles.css. Only holds rules the landing page
   doesn't need (case hero layout, feature grid, timeline).

   TABLE OF CONTENTS
   -----------------
   1. CASE HERO
   2. CASE META ROW
   3. CASE BODY / PROSE
   4. FEATURE GRID
   5. STACK LIST
   6. TIMELINE
   7. RESPONSIVE
   ================================================================== */


/* ==================================================================
   1. CASE HERO
   ================================================================== */
.case-hero {
  position: relative;
  padding: var(--s-9) 0 var(--s-7);
  overflow: hidden;
  isolation: isolate;
}
.case-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(50% 40% at 20% 10%, rgba(255, 181, 71, 0.10), transparent 70%),
    radial-gradient(40% 30% at 90% 0%,  rgba(212, 168, 75, 0.08), transparent 70%);
}

.back-link {
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-decoration: none;
  text-transform: none;
  letter-spacing: 0;
}
.back-link:hover { color: var(--gold); }

.case-title {
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1;
  margin: var(--s-4) 0 var(--s-5);
  background: linear-gradient(180deg, #ffffff 0%, #a8a8a8 100%);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}

.case-lede {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 70ch;
  line-height: var(--lh-snug);
  margin: 0 0 var(--s-6);
}

.case-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
}


/* ==================================================================
   2. CASE META ROW  (category + status pill)
   ================================================================== */
.case-meta {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  margin-top: var(--s-5);
}


/* ==================================================================
   3. CASE BODY / PROSE
   Narrow, readable column for the explanatory sections.
   ================================================================== */
.case-body { max-width: 72ch; }

.case-prose p {
  color: var(--text-muted);
  font-size: 1.0625rem;
  margin: 0 0 var(--s-4);
}
.case-prose p:last-child { margin-bottom: 0; }

.case-prose code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--gold-hot);
  background: rgba(212, 168, 75, 0.08);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}


/* ==================================================================
   4. FEATURE GRID
   Six cards describing the GRC modules. Two columns on desktop,
   one column on mobile.
   ================================================================== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-4);
}

.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--s-5);
  transition: border-color 200ms var(--ease), transform 200ms var(--ease);
}
.feature:hover {
  border-color: var(--border-hot);
  transform: translateY(-2px);
}
.feature h3 {
  font-size: var(--fs-h3);
  margin-bottom: var(--s-3);
  color: var(--gold);
}
.feature p {
  color: var(--text-muted);
  font-size: var(--fs-small);
  margin: 0;
}


/* ==================================================================
   5. STACK LIST
   ================================================================== */
.stack-list {
  display: grid;
  gap: var(--s-3);
  margin-top: var(--s-4);
}
.stack-list li {
  color: var(--text-muted);
  font-size: 1rem;
  padding: var(--s-3) var(--s-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
}
.stack-list strong { color: var(--text); margin-right: 0.4em; }
.stack-list code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--gold-hot);
  background: rgba(212, 168, 75, 0.08);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}


/* ==================================================================
   6. TIMELINE
   Version history — a left-border marker + version pill + blurb.
   ================================================================== */
.timeline {
  display: grid;
  gap: var(--s-3);
  margin-top: var(--s-5);
  border-left: 1px solid var(--border);
  padding-left: var(--s-5);
}
.timeline-row {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: var(--s-4);
  align-items: baseline;
  position: relative;
  padding-block: var(--s-2);
}
.timeline-row::before {
  content: "";
  position: absolute;
  left: calc(var(--s-5) * -1 - 5px);
  top: 0.9em;
  width: 9px;
  height: 9px;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--bg), 0 0 0 5px var(--border-hot);
}
.timeline-v {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--gold);
  letter-spacing: 0.02em;
}
.timeline-desc {
  color: var(--text-muted);
  font-size: var(--fs-small);
}
.timeline-desc code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--gold-hot);
  background: rgba(212, 168, 75, 0.08);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}


/* ==================================================================
   7. RESPONSIVE  (breakpoint: 768px — matches landing page)
   ================================================================== */
@media (max-width: 768px) {
  .feature-grid { grid-template-columns: 1fr; }
  .timeline-row { grid-template-columns: 1fr; gap: var(--s-1); }
  .timeline-row::before { left: calc(var(--s-5) * -1 - 5px); top: 0.5em; }
}