/* The Agentic Service Designer — article design system
   Additive classes for case-study articles: stat blocks, key-insight
   callouts, pull quotes, persona cards, designed figures, interactive
   blueprints, data tables, customer-quote cards. */

/* ---------- figure chrome ----------
   Single .fig rule for article figures; width/placement inside the
   body column comes from style.css (.art-body .fig { width: 100%; }).
   SVGs scale to the column (.fig svg { width: 100%; height: auto; }),
   so no overflow-x is needed. */
.fig { margin: 26px 0 30px; }
.fig svg, .fig .fig-html {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--paper);
}
.fig .fig-html { padding: 18px; }
/* Nothing scrolls inside its container. Under 720px the blueprint table stacks:
   one block per lane, one block per stage, each stage named from its data-label,
   which is the stacked list the details cells already are. */
@media (max-width: 720px) {
  .fig .fig-html { padding: 12px; }
  .blueprint, .blueprint tbody, .blueprint tr, .blueprint td, .blueprint caption { display: block; width: 100%; }
  .blueprint tr:first-child { display: none; }
  .blueprint tr.lane { border-top: 2px solid var(--ink); padding: 8px 0 4px; }
  .blueprint td { border: 0; border-bottom: 1px solid var(--line); padding: 6px 0; }
  .blueprint td[data-label]::before { content: attr(data-label); display: block; font-family: var(--mono); font-size: var(--t-1); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); margin-bottom: 2px; }
  .blueprint td[data-label="Stage / lane"] { font-weight: 600; }
  .blueprint td[data-label="Stage / lane"]::before { content: none; }
}
.fig figcaption {
  display: flex;
  gap: 10px;
  align-items: baseline;
  margin-top: 10px;
  font-size: var(--t-1);
  color: var(--muted);
  line-height: 1.45;
}
.fig figcaption .fignum {
  font-family: var(--mono);
  font-size: var(--t-1);
  color: var(--ink-soft);
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---------- stat blocks ---------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin: 22px 0 26px;
}
.stat {
  background: var(--dark);
  color: var(--dark-ink);
  border-radius: var(--radius-card);
  padding: 18px 16px 14px;
  min-height: 96px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.stat b {
  font-size: var(--t-8);
  line-height: 1;
  letter-spacing: -0.03em;
  font-weight: 600;
  color: var(--dark-ink);
  font-variant-numeric: tabular-nums;
}
.stat span {
  font-family: var(--mono);
  font-size: var(--t-1);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #a9a9a3;
  margin-top: 8px;
  line-height: 1.4;
}
.stat.alt { background: var(--paper-tint); color: var(--ink); border: 1px solid var(--line); }
.stat.alt b { color: var(--ink); }
.stat.alt span { color: var(--muted); }
.stat.accent { background: var(--lavender); }
.stat.accent b { color: #3a2a5e; }
.stat.accent span { color: #5c4a85; }

/* ---------- key insight callout ---------- */
.key-insight {
  border: 1px solid var(--line);
  border-left: 4px solid var(--ink);
  border-radius: var(--radius-card);
  padding: 20px 22px;
  margin: 24px 0 28px;
  background: var(--paper-tint);
}
.key-insight .ki-label {
  font-family: var(--mono);
  font-size: var(--t-1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-bottom: 8px;
}
.key-insight p {
  font-size: var(--t-6);
  line-height: 1.45;
  font-weight: 500;
  letter-spacing: -0.015em;
  margin: 0;
  color: var(--ink);
}
.key-insight p em { font-style: italic; color: var(--ink-soft); }

/* ---------- pull quote ---------- */
.pullquote {
  margin: 26px 0 30px;
  padding: 22px 26px;
  border: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: center;
}
.pullquote p {
  font-size: var(--t-6);
  line-height: 1.4;
  letter-spacing: -0.02em;
  font-weight: 500;
  margin: 0;
  color: var(--ink);
}
.pullquote p::before { content: "“"; }
.pullquote p::after { content: "”"; }
.pullquote cite {
  display: block;
  margin-top: 10px;
  font-family: var(--mono);
  font-size: var(--t-1);
  font-style: normal;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---------- customer quote card ---------- */
.quote-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 16px 18px 14px;
  margin: 14px 0;
  background: var(--paper);
  position: relative;
}
.quote-card::before {
  content: "“";
  position: absolute;
  top: -6px;
  left: 12px;
  font-size: var(--t-8);
  line-height: 1;
  color: var(--line-strong);
  font-family: Georgia, serif;
}
.quote-card p { margin: 6px 0 8px; font-size: var(--t-3); font-style: italic; color: var(--ink); }
.quote-card span {
  font-family: var(--mono);
  font-size: var(--t-1);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---------- persona cards ---------- */
.persona-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
  margin: 22px 0 26px;
}
.persona-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--paper);
  overflow: hidden;
}
.persona-card .persona-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--paper-tint);
}
.persona-card .persona-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--dark);
  color: var(--dark-ink);
  display: grid;
  place-items: center;
  font-weight: 600;
  font-size: var(--t-4);
  letter-spacing: 0.02em;
  flex: none;
}
.persona-card .persona-name { font-weight: 600; font-size: var(--t-3); }
.persona-card .persona-role {
  font-family: var(--mono);
  font-size: var(--t-1);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-top: 2px;
}
.persona-card .persona-body { padding: 12px 16px 14px; }
.persona-card .persona-body h5 {
  font-family: var(--mono);
  font-size: var(--t-1);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  margin: 10px 0 5px;
  font-weight: 500;
}
.persona-card .persona-body h5:first-child { margin-top: 0; }
.persona-card .persona-body p { margin: 0 0 4px; font-size: var(--t-2); line-height: 1.5; }
.persona-card .persona-body ul { margin: 0; padding-left: 16px; }
.persona-card .persona-body li { font-size: var(--t-2); line-height: 1.5; margin: 0 0 3px; }

/* ---------- interactive blueprint ---------- */
.blueprint {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  font-size: var(--t-2);
  background: var(--paper);
}
.blueprint caption {
  text-align: left;
  font-family: var(--mono);
  font-size: var(--t-1);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  padding: 0 0 8px;
}
.blueprint th {
  background: var(--dark);
  color: var(--dark-ink);
  font-weight: 500;
  font-size: var(--t-1);
  text-align: left;
  padding: 9px 12px;
  border: 1px solid #2a2b29;
  letter-spacing: 0.02em;
  position: sticky;
  top: 0;
}
.blueprint td { border: 1px solid var(--line); padding: 8px 12px; vertical-align: top; }
.blueprint tr.lane td:first-child {
  font-family: var(--mono);
  font-size: var(--t-1);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  background: var(--paper-tint);
  white-space: nowrap;
  font-weight: 500;
}
.blueprint .cell {
  cursor: pointer;
  transition: background var(--fast) var(--ease);
}
.blueprint .cell:hover { background: var(--butter); }
.blueprint .cell.open { background: var(--sage); }
.blueprint .cell-detail {
  display: none;
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px dashed var(--line-strong);
  font-size: var(--t-1);
  color: var(--ink-soft);
}
.blueprint details[open] .cell-detail { display: block; }
.blueprint details[open] > summary::after { content: " ▴"; font-family: var(--mono); font-size: var(--t-1); }
.blueprint details:not([open]) > summary::after { content: " ▾"; font-family: var(--mono); font-size: var(--t-1); color: var(--muted); }
.blueprint summary { cursor: pointer; list-style: none; }
.blueprint summary::-webkit-details-marker { display: none; }
.blueprint .fail { background: #fdf3f2; }
.blueprint .fail:hover { background: #fbeae8; }
.blueprint .fail .cell-detail { color: #8a3b32; }
.blueprint .fp {
  font-family: var(--mono);
  font-size: var(--t-1);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #8a3b32;
  border: 1px solid #e5b8b2;
  border-radius: 3px;
  padding: 1px 5px;
  margin-left: 6px;
}

/* ---------- data table ---------- */
.data-table { border-collapse: collapse; width: 100%; margin: 18px 0 24px; font-size: var(--t-2); }
.data-table th {
  border-bottom: 2px solid var(--ink);
  padding: 8px 12px;
  text-align: left;
  font-weight: 600;
  font-size: var(--t-1);
}
.data-table td { border-bottom: 1px solid var(--line); padding: 8px 12px; vertical-align: top; }
.data-table tbody tr:nth-child(even) { background: var(--paper-tint); }
.data-table tbody tr:hover { background: var(--blue); }
.data-table td.num, .data-table th.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: var(--t-2); }

/* ---------- metric chips ---------- */
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 22px; }
.metric-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 14px;
  background: var(--paper);
  font-size: var(--t-2);
}
.metric-chip b { font-size: var(--t-4); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.metric-chip.dark { background: var(--dark); color: var(--dark-ink); border-color: var(--dark); }
.metric-chip.dark b { color: var(--dark-ink); }
.metric-chip.dark span { color: #a9a9a3; }

/* ---------- typography refinements ---------- */
.art-body .lead { font-size: var(--t-4); line-height: 1.6; color: var(--ink-soft); }
.art-body strong { font-weight: 600; }
.art-body .sec-kicker {
  font-family: var(--mono);
  font-size: var(--t-1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-bottom: 6px;
}
.art-body p { line-height: 1.68; }