/* =========================================================
   CASE STUDY COMPONENTS
   Extends style.css / mediaqueries.css — link this AFTER both.
   Reuses the portfolio's tokens (--text, --muted, --line, --bg,
   --surface, --accent) and fonts (DM Sans / DM Serif Display)
   so case study pages feel like one site instead of a one-off.
========================================================= */

/* ---------- Small uppercase label above a heading ---------- */

.section-label {
  margin-bottom: 0.5rem;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ---------- Metric cards (replaces dark "impact" grid) ---------- */

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto 6rem;
}

.metric-card {
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
}

.metric-card .stat {
  margin-bottom: 0.4rem;
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 1.4rem;
  line-height: 1.1;
}

.metric-card .desc {
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.5;
}

/* ---------- Findings stack (was .finding-card on white cards) ---------- */

.findings-stack {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 0.5rem;
}

.finding-card {
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
}

.finding-card .tag {
  margin-bottom: 0.5rem;
  color: var(--text);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.finding-card h3 {
  margin-bottom: 0.5rem;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 600;
}

.finding-card p {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* ---------- Two-column version comparison ---------- */

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 1rem;
}

.two-col h3 {
  margin-bottom: 0.75rem;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 600;
}

.two-col ul {
  padding-left: 1.1rem;
}

.two-col li {
  margin-bottom: 0.6rem;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

.two-col li strong {
  color: var(--text);
  font-weight: 600;
}

/* ---------- Pivot diagram (SVG, replaces ASCII terminal box) ---------- */

.pivot-diagram {
  width: 100%;
  height: auto;
  margin: 1.5rem 0 0.5rem;
}

.pivot-diagram .diagram-label {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  fill: var(--muted);
}

.pivot-diagram .diagram-line {
  font-family: var(--font-sans);
  font-size: 12.5px;
  fill: var(--text);
}

.pivot-diagram .diagram-box {
  fill: var(--surface);
  stroke: var(--line);
  stroke-width: 1;
}

.pivot-diagram .diagram-arrow {
  stroke: var(--text);
  stroke-width: 1.5;
  fill: none;
}

/* ---------- Retrospective callout ---------- */

.retro-box {
  padding: 1.5rem;
  margin-top: 1.5rem;
  background: var(--accent-tint, #f2f2ec);
  border-left: 2px solid var(--text);
  border-radius: 0 4px 4px 0;
}

.retro-box h3 {
  margin-bottom: 0.5rem;
  color: var(--text);
  font-size: 1rem;
  font-weight: 600;
}

.retro-box p {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.65;
}

.retro-box ul {
  margin-top: 0.25rem;
  padding-left: 1.1rem;
}

.retro-box li {
  margin-bottom: 0.6rem;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.65;
}

.retro-box li:last-child {
  margin-bottom: 0;
}

.retro-box li strong {
  color: var(--text);
  font-weight: 600;
}

/* ---------- Numbered execution list (was 1/2/3 plain text) ---------- */

.exec-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 0.5rem;
}

.exec-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 1.25rem;
}

.exec-item .exec-number {
  color: var(--muted);
  font-family: var(--font-serif);
  font-size: 1.5rem;
  line-height: 1.4;
}

.exec-item h3 {
  margin-bottom: 0.5rem;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 600;
}

.exec-item p {
  color: #292929;
  font-size: 0.98rem;
  line-height: 1.7;
}


/* =========================================================
   RESPONSIVE
========================================================= */

@media screen and (max-width: 600px) {

  .metrics-grid {
    grid-template-columns: 1fr;
    margin-bottom: 4.5rem;
  }

  .two-col {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .pivot-diagram .diagram-line {
    font-size: 11px;
  }

  .exec-item {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 0.85rem;
  }

  .exec-item .exec-number {
    font-size: 1.2rem;
  }

  .iteration-diagram .diagram-line {
    font-size: 9.5px;
  }
}