/* ═══════════════════════════════════════════════════════════
   BUBBLE WATCH — S17
   Six SVG charts on whether the US market is in an AI bubble.
   Editorial data story. Vanilla JS. Static snapshot, May 2026.
   ═══════════════════════════════════════════════════════════ */

.bw-main {
  background: var(--paper);
  color: var(--ink);
}

/* Local palette — keeps to the site's ink/accent vocabulary
   plus two muted chart colors for two-series comparisons. */
.bw-main {
  --bw-bull:    oklch(0.72 0.13 200);
  --bw-bear:    var(--accent);
  --bw-neutral: oklch(0.66 0.04 80);
  --bw-grid:    color-mix(in oklab, var(--ink) 12%, transparent);
  --bw-soft:    color-mix(in oklab, var(--paper) 80%, var(--ink) 4%);
}

/* ── Hero ───────────────────────────────────────────────────── */
.bw-hero {
  padding: 120px 48px 60px;
  max-width: 1280px;
  margin: 0 auto;
}
.bw-title { margin-top: 22px; }
.bw-kicker {
  margin-top: 24px;
  max-width: 740px;
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink-soft);
}
.bw-dateline {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  max-width: 1000px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.bw-dateline .label { color: var(--ink-dim); }
.bw-dateline .value {
  color: var(--ink);
  margin-top: 4px;
  text-transform: none;
  letter-spacing: 0.04em;
  font-size: 12px;
}

/* ── Section wrapper ───────────────────────────────────────── */
.bw-section {
  padding: 72px 48px;
  max-width: 1280px;
  margin: 0 auto;
}
.bw-section .section-label { margin-bottom: 26px; }
.bw-prose { max-width: 760px; }
.bw-prose p {
  margin-top: 18px;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
}
.bw-lede {
  font-family: "Newsreader", Georgia, serif;
  font-style: italic;
  font-size: 24px !important;
  line-height: 1.4 !important;
  color: var(--ink) !important;
}
.bw-note {
  max-width: 820px;
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin-bottom: 28px;
}
.bw-callout {
  margin-top: 32px;
  padding: 18px 22px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  max-width: 760px;
}
.bw-callout strong {
  color: var(--accent);
  font-weight: 500;
  font-size: 14px;
}

/* ── Controls ─────────────────────────────────────────────── */
.bw-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
  padding: 14px 18px;
  border: 1px solid var(--ink);
  background: var(--paper);
}
.bw-filter-label {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-right: 8px;
}
.bw-filter-divider {
  width: 1px;
  height: 16px;
  background: var(--ink-dim);
  margin: 0 12px;
  opacity: 0.5;
}
.bw-pill {
  appearance: none;
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink);
  padding: 6px 12px;
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease, transform 120ms ease;
}
.bw-pill:hover { transform: translateY(-1px); }
.bw-pill.active,
.bw-pill[data-active="true"] {
  background: var(--ink);
  color: var(--paper);
}

/* ── Charts ──────────────────────────────────────────────── */
.bw-chart-wrap {
  position: relative;
  margin-top: 8px;
  border: 1px solid var(--ink);
  background: var(--paper);
  padding: 14px;
}
.bw-chart-wrap svg {
  display: block;
  width: 100%;
  height: auto;
}
.bw-axis {
  stroke: var(--ink);
  stroke-width: 1;
}
.bw-axis-label {
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  fill: var(--ink-dim);
}
.bw-grid {
  stroke: var(--bw-grid);
  stroke-width: 1;
}
.bw-series {
  fill: none;
  stroke-width: 2;
}
.bw-series-bull { stroke: var(--bw-bull); }
.bw-series-bear { stroke: var(--bw-bear); }
.bw-series-neutral { stroke: var(--bw-neutral); }
.bw-series-fill-bull { fill: color-mix(in oklab, var(--bw-bull) 22%, transparent); }
.bw-series-fill-bear { fill: color-mix(in oklab, var(--bw-bear) 22%, transparent); }

.bw-marker {
  fill: var(--paper);
  stroke-width: 1.4;
}
.bw-marker-line {
  stroke-dasharray: 4 4;
  stroke-width: 1;
}
.bw-marker-label {
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.06em;
  fill: var(--ink);
}
.bw-ref-line {
  stroke: var(--ink-dim);
  stroke-width: 1.2;
  stroke-dasharray: 6 4;
  fill: none;
}
.bw-ref-label {
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.06em;
  fill: var(--ink-dim);
  font-style: italic;
}

/* Two-bar grouped layout used by the capex gap chart */
.bw-bar-capex { fill: var(--bw-bear); }
.bw-bar-rev   { fill: var(--bw-bull); }
.bw-bar-label {
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.04em;
  fill: var(--ink);
}
.bw-bar-sub {
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 9px;
  letter-spacing: 0.06em;
  fill: var(--ink-dim);
}

/* Magnificent Seven bar list used by the concentration alternate view */
.bw-mag7-row { transition: opacity 150ms ease; }
.bw-mag7-bar { fill: var(--bw-bear); }
.bw-mag7-bar-share { fill: var(--bw-bull); }

.bw-tooltip {
  position: absolute;
  pointer-events: none;
  background: var(--paper);
  border: 1px solid var(--ink);
  padding: 8px 10px;
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: 0.04em;
  color: var(--ink);
  box-shadow: 0 6px 24px -10px rgba(0, 0, 0, 0.4);
  z-index: 10;
  white-space: nowrap;
}
.bw-tooltip strong { color: var(--accent); font-weight: 500; }
.bw-tooltip-dim { color: var(--ink-dim); }

/* ── Readout / ticker / callout ──────────────────────────── */
.bw-readout {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--ink-dim);
  max-width: 880px;
}
.bw-readout-label {
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 8px;
}
.bw-readout p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
}
.bw-readout p strong { color: var(--accent); font-weight: 500; }

.bw-chart-callout {
  margin-top: 22px;
  padding: 14px 18px;
  display: inline-flex;
  gap: 14px;
  align-items: center;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  max-width: 760px;
}
.bw-callout-stat {
  font-family: "Newsreader", Georgia, serif;
  font-size: 26px;
  color: var(--accent);
  letter-spacing: 0;
}

/* ── Lineup grid (S17.6) ────────────────────────────────── */
.bw-lineup {
  display: grid;
  grid-template-columns: 220px repeat(5, minmax(0, 1fr));
  border: 1px solid var(--ink);
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 12px;
  background: var(--paper);
}
.bw-line-head {
  padding: 12px 14px;
  border-bottom: 1px solid var(--ink);
  background: var(--bw-soft);
  color: var(--ink);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.bw-line-row-label {
  padding: 12px 14px;
  border-top: 1px solid var(--bw-grid);
  border-right: 1px solid var(--bw-grid);
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.bw-line-row-label .bw-line-row-sub {
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.bw-line-cell {
  padding: 12px 14px;
  border-top: 1px solid var(--bw-grid);
  border-right: 1px solid var(--bw-grid);
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
}
.bw-line-cell:last-child { border-right: none; }
.bw-line-val {
  font-family: "Newsreader", Georgia, serif;
  font-size: 18px;
  line-height: 1.1;
}
.bw-line-sev {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.13;
}
.bw-line-sev[data-s="0"] { background: transparent; }
.bw-line-sev[data-s="1"] { background: var(--bw-neutral); }
.bw-line-sev[data-s="2"] { background: var(--bw-bear); }
.bw-line-sev[data-s="3"] { background: var(--bw-bear); opacity: 0.26; }
.bw-line-row-now { font-weight: 500; }
.bw-line-cell-now { background: color-mix(in oklab, var(--bw-bear) 6%, var(--paper)); }

/* ── Verdict + Receipts ──────────────────────────────────── */
.bw-verdict {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 22px;
  margin-bottom: 32px;
}
.bw-verdict-card {
  padding: 22px 24px;
  border: 1px solid var(--ink);
  background: var(--bw-soft);
}
.bw-verdict-label {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
  border-bottom: 1px solid var(--ink-dim);
  padding-bottom: 8px;
  margin-bottom: 12px;
}
.bw-verdict-card h3 {
  font-family: "Newsreader", Georgia, serif;
  font-size: 24px;
  line-height: 1.25;
  margin: 0 0 12px;
  color: var(--ink);
}
.bw-verdict-card p {
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0;
}
.bw-prob-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}
.bw-prob-list li {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 12px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--ink);
}
.bw-prob-pct {
  font-family: "Newsreader", Georgia, serif;
  font-size: 22px;
  color: var(--accent);
  text-align: right;
}

.bw-receipts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 18px;
}
.bw-receipt {
  padding: 16px;
  border: 1px solid var(--ink-dim);
  background: var(--bw-soft);
}
.bw-receipt-label {
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 8px;
}
.bw-receipt-value {
  font-family: "Newsreader", Georgia, serif;
  font-size: 26px;
  line-height: 1.1;
  color: var(--ink);
}
.bw-receipt-value .small {
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-dim);
  margin-left: 4px;
  text-transform: lowercase;
}

/* ── Colophon ────────────────────────────────────────────── */
.bw-colophon-section { padding-bottom: 110px; }
.method-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}
.method-grid p {
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin-top: 8px;
}
.method-head {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--ink-dim);
}
.method-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 26px;
}

/* ── Related labs aside ──────────────────────────────────── */
.bw-related {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px 110px;
}
.bw-related .section-label { margin-bottom: 24px; }
.bw-related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.bw-related-card {
  padding: 18px;
  border: 1px solid var(--ink-dim);
  background: var(--bw-soft);
}
.bw-related-card .bw-card-kicker {
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.bw-related-card h3 {
  font-family: "Newsreader", Georgia, serif;
  font-size: 19px;
  margin: 8px 0 6px;
}
.bw-related-card h3 a {
  color: var(--ink);
  border-bottom: 1px solid var(--ink-dim);
}
.bw-related-card h3 a:hover { color: var(--accent); }
.bw-related-card p {
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-soft);
  margin: 0;
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 900px) {
  .bw-hero, .bw-section, .bw-related { padding-left: 24px; padding-right: 24px; }
  .bw-dateline { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bw-verdict { grid-template-columns: 1fr; }
  .bw-lineup {
    grid-template-columns: 140px repeat(5, minmax(0, 1fr));
    font-size: 11px;
  }
  .bw-line-val { font-size: 15px; }
}
@media (max-width: 620px) {
  .bw-hero { padding-top: 90px; }
  .bw-controls { padding: 10px 12px; gap: 4px; }
  .bw-pill { padding: 5px 9px; font-size: 10px; }
  .bw-receipt-value { font-size: 22px; }
  .bw-lineup {
    grid-template-columns: 120px repeat(5, minmax(0, 1fr));
    font-size: 10px;
  }
  .bw-line-head, .bw-line-cell, .bw-line-row-label { padding: 8px 10px; }
}