/* ==========================================================================
   s34-chart — 블로그·리서치 글 본문 차트 (2026-10-11)
   생성기: docs/blog-authoring/scripts/make_chart.py (정적 HTML/SVG — JS 없이도 보임)
   배선:   docs/blog-authoring/scripts/add_chart_assets.py 가 차트 있는 글에만 이 파일을 붙인다.
   색:     dataviz 기본 범주 팔레트 1~5번 슬롯. 사이트 표면(다크 #0d1826 / 라이트 #ffffff)에서
           validate_palette.js 로 검증 — 라이트는 3:1 미만 슬롯이 있어 값 라벨·표 보기를 항상 둔다.
   사이트 기본 테마가 다크라서 다크가 기본값이고 [data-theme="light"] 에서 라이트로 바뀐다.
   ========================================================================== */
.s34-chart {
  --s34c-1: #3987e5;
  --s34c-2: #d95926;
  --s34c-3: #199e70;
  --s34c-4: #c98500;
  --s34c-5: #d55181;
  --s34c-mute: #4a5a6c;
  --s34c-ink: var(--text-color-dark, #e6f1ff);
  --s34c-ink-2: var(--muted-text, #9fb2c7);
  --s34c-grid: rgba(159, 178, 199, 0.14);
  --s34c-base: rgba(159, 178, 199, 0.38);
  --s34c-surface: #0d1826;
  margin: 1.5rem 0 1.75rem;
  padding: 1.1rem 1.15rem 0.9rem;
  border: 1px solid var(--border-color, rgba(124, 227, 255, 0.14));
  border-radius: 14px;
  background: rgba(8, 16, 26, 0.35);
  font-size: 0.9rem;
  line-height: 1.45;
}
:root[data-theme="light"] .s34-chart {
  --s34c-1: #2a78d6;
  --s34c-2: #eb6834;
  --s34c-3: #1baf7a;
  --s34c-4: #eda100;
  --s34c-5: #e87ba4;
  --s34c-mute: #c3c9d3;
  --s34c-grid: #e8ecf2;
  --s34c-base: #c3c9d3;
  --s34c-surface: #ffffff;
  background: #ffffff;
}
.s34-chart .s1 { --c: var(--s34c-1); }
.s34-chart .s2 { --c: var(--s34c-2); }
.s34-chart .s3 { --c: var(--s34c-3); }
.s34-chart .s4 { --c: var(--s34c-4); }
.s34-chart .s5 { --c: var(--s34c-5); }
.s34-chart .mute { --c: var(--s34c-mute); }

.s34-chart figcaption { margin: 0 0 0.75rem; }
.s34-chart .s34c-title { display: block; font-weight: 700; color: var(--s34c-ink); font-size: 0.98rem; }
.s34-chart .s34c-sub { display: block; color: var(--s34c-ink-2); font-size: 0.82rem; margin-top: 0.15rem; }

/* legend — 2개 이상 계열일 때만 생성된다. 글자는 잉크색, 색은 옆 견본이 맡는다. */
.s34-chart .s34c-legend { display: flex; flex-wrap: wrap; gap: 0.35rem 1rem; margin: 0 0 0.8rem; padding: 0; list-style: none; color: var(--s34c-ink-2); font-size: 0.82rem; }
.s34-chart .s34c-legend li { display: inline-flex; align-items: center; gap: 0.4rem; margin: 0; }
.s34-chart .s34c-legend li::before { content: ""; width: 10px; height: 10px; border-radius: 3px; background: var(--c); }
.s34-chart .s34c-legend.is-line li::before { height: 2px; width: 14px; border-radius: 2px; }

/* ---------- 가로 막대(bar) · 묶음 막대(grouped) ---------- */
.s34-chart .s34c-rows { display: grid; gap: 0.55rem; }
.s34-chart .s34c-row { display: grid; grid-template-columns: minmax(6.5rem, 30%) 1fr; align-items: center; gap: 0.75rem; }
.s34-chart .s34c-label { color: var(--s34c-ink); font-size: 0.84rem; overflow-wrap: anywhere; }
.s34-chart .s34c-bars { display: grid; gap: 3px; border-left: 1px solid var(--s34c-base); padding: 2px 0; }
.s34-chart .s34c-track { display: flex; align-items: center; gap: 0.4rem; min-height: 14px; }
.s34-chart .s34c-bar {
  flex: 0 0 calc(var(--v) * 0.8);
  height: 14px;
  min-width: 2px;
  background: var(--c);
  border-radius: 0 4px 4px 0;
  cursor: default;
  outline-offset: 2px;
}
.s34-chart .s34c-rows.is-grouped .s34c-bar { height: 10px; }
.s34-chart .s34c-val { color: var(--s34c-ink-2); font-size: 0.78rem; font-variant-numeric: tabular-nums; white-space: nowrap; }
.s34-chart .s34c-row.is-hl .s34c-val { color: var(--s34c-ink); font-weight: 700; }
@media (max-width: 560px) {
  .s34-chart .s34c-row { grid-template-columns: 1fr; gap: 0.2rem; }
}

/* ---------- 세로 막대(column) ---------- */
.s34-chart .s34c-cols { display: flex; align-items: flex-end; gap: 4px; height: 190px; border-bottom: 1px solid var(--s34c-base); padding: 1.2rem 0 0; }
.s34-chart .s34c-col { flex: 1 1 0; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; height: 100%; min-width: 0; }
.s34-chart .s34c-col .s34c-bar { flex: none; width: min(24px, 70%); height: var(--v); min-height: 2px; border-radius: 4px 4px 0 0; }
.s34-chart .s34c-col .s34c-val { margin-bottom: 0.2rem; }
.s34-chart .s34c-xl { display: flex; gap: 4px; margin-top: 0.35rem; }
.s34-chart .s34c-xl span { flex: 1 1 0; min-width: 0; text-align: center; color: var(--s34c-ink-2); font-size: 0.76rem; overflow-wrap: anywhere; }

/* ---------- 100% 누적 막대(stacked) ---------- */
.s34-chart .s34c-stack { display: flex; gap: 2px; height: 26px; }
.s34-chart .s34c-seg { flex: 0 0 auto; width: var(--v); background: var(--c); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 0.74rem; font-weight: 700; overflow: visible; white-space: nowrap; }
.s34-chart .s34c-seg:first-child { border-radius: 4px 0 0 4px; }
.s34-chart .s34c-seg:last-child { border-radius: 0 4px 4px 0; }
:root[data-theme="light"] .s34-chart .s34c-seg.s3,
:root[data-theme="light"] .s34-chart .s34c-seg.s4,
:root[data-theme="light"] .s34-chart .s34c-seg.s5 { color: #16202e; }

/* ---------- 꺾은선(line) ---------- */
.s34-chart .s34c-plot { position: relative; height: 220px; margin: 0.4rem 3.2rem 0 2.6rem; }
.s34-chart .s34c-plot svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.s34-chart .s34c-plot polyline { fill: none; stroke: var(--c); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; vector-effect: non-scaling-stroke; }
.s34-chart .s34c-plot polygon { fill: var(--c); opacity: 0.1; stroke: none; }
.s34-chart .s34c-gl { position: absolute; left: 0; right: 0; height: 0; border-top: 1px solid var(--s34c-grid); }
.s34-chart .s34c-gl.is-base { border-top-color: var(--s34c-base); }
.s34-chart .s34c-gl span { position: absolute; right: calc(100% + 0.45rem); top: -0.6em; color: var(--s34c-ink-2); font-size: 0.72rem; font-variant-numeric: tabular-nums; white-space: nowrap; }
.s34-chart .s34c-dot { position: absolute; width: 8px; height: 8px; margin: -4px 0 0 -4px; border-radius: 50%; background: var(--c); box-shadow: 0 0 0 2px var(--s34c-surface); pointer-events: none; }
.s34-chart .s34c-end { position: absolute; left: calc(100% + 0.45rem); transform: translateY(-50%); color: var(--s34c-ink); font-size: 0.74rem; font-weight: 700; white-space: nowrap; font-variant-numeric: tabular-nums; }
.s34-chart .s34c-hit { position: absolute; top: 0; bottom: 0; transform: translateX(-50%); }
.s34-chart .s34c-hit::after { content: ""; position: absolute; top: 0; bottom: 0; left: 50%; border-left: 1px solid var(--s34c-base); opacity: 0; }
.s34-chart .s34c-hit:hover::after, .s34-chart .s34c-hit:focus-visible::after { opacity: 1; }
.s34-chart .s34c-xaxis { position: relative; height: 1.6rem; margin: 0.3rem 3.2rem 0 2.6rem; }
.s34-chart .s34c-xaxis span { position: absolute; transform: translateX(-50%); color: var(--s34c-ink-2); font-size: 0.74rem; white-space: nowrap; }

/* ---------- 파이·도넛(pie / donut) ---------- */
.s34-chart .s34c-pie { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.6rem; }
.s34-chart .s34c-pie svg { width: 168px; height: 168px; flex: none; transform: rotate(-90deg); }
.s34-chart .s34c-pie circle { fill: none; stroke: var(--c); }
.s34-chart .s34c-pie .s34c-legend { flex-direction: column; gap: 0.4rem; margin: 0; font-size: 0.84rem; }
.s34-chart .s34c-pie .s34c-legend b { color: var(--s34c-ink); font-variant-numeric: tabular-nums; margin-right: 0.25rem; }

/* ---------- 출처 · 표 보기 ---------- */
.s34-chart .s34c-note { margin: 0.75rem 0 0; color: var(--s34c-ink-2); font-size: 0.76rem; }
.s34-chart details { margin-top: 0.55rem; }
.s34-chart summary { cursor: pointer; color: var(--primary-color, #7ce3ff); font-size: 0.8rem; }
.s34-chart details .post-table-wrap { margin: 0.5rem 0 0; }
.s34-chart details table { font-size: 0.8rem; }

/* hover/focus 반응 — 마크가 살짝 밝아진다 */
.s34-chart [data-tip] { cursor: default; }
.s34-chart .s34c-bar:hover, .s34-chart .s34c-bar:focus-visible,
.s34-chart .s34c-seg:hover, .s34-chart .s34c-seg:focus-visible { filter: brightness(1.18); }
.s34-chart .s34c-pie circle:hover, .s34-chart .s34c-pie circle:focus-visible { filter: brightness(1.18); }

/* 툴팁(s34-chart.js) — 값이 먼저, 계열명이 뒤 */
.s34c-tip {
  position: fixed; z-index: 9999; pointer-events: none;
  max-width: 260px; padding: 0.5rem 0.65rem; border-radius: 8px;
  background: #0f1d2e; color: #e6f1ff; border: 1px solid rgba(124, 227, 255, 0.22);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.35); font-size: 0.78rem; line-height: 1.4;
}
:root[data-theme="light"] .s34c-tip { background: #ffffff; color: #16202e; border-color: #d6dde8; box-shadow: 0 8px 22px rgba(20, 30, 60, 0.14); }
.s34c-tip .t { display: block; color: inherit; opacity: 0.72; margin-bottom: 0.15rem; }
.s34c-tip .r { display: flex; align-items: center; gap: 0.4rem; }
.s34c-tip .r i { width: 12px; height: 2px; border-radius: 2px; flex: none; }
.s34c-tip .r b { font-variant-numeric: tabular-nums; }

@media (forced-colors: active) {
  .s34-chart .s34c-bar, .s34-chart .s34c-seg { background: CanvasText; }
}