/* ═══════════════════════════════════════════════════════════════════
   Yolt v11 — D-N46 Brother Test layer (page-intent-banner +
   scorecard narrative + WTF popovers / bottom sheets).

   HARD rules (CLAUDE.md):
     · oklch only — ZERO hex
     · spacing only via --space-* tokens
     · ZERO Tailwind utilities
   ═══════════════════════════════════════════════════════════════════ */

/* ─────────────────────────────────────────────────────────────────
   1) page-intent-banner — top of every analytics page.
   ───────────────────────────────────────────────────────────────── */
.page-intent-banner {
  display: block;
  background: color-mix(in oklch, var(--info) 12%, var(--bg-1));
  border: 1px solid color-mix(in oklch, var(--info) 35%, var(--line));
  border-radius: 8px;
  padding: var(--space-md) var(--space-lg);
  margin: 0 0 var(--space-md) 0;
  box-shadow: var(--shadow-low);
  position: relative;
  z-index: 5;
}
.page-intent-banner[data-tone="warn"] {
  background: color-mix(in oklch, var(--warn) 12%, var(--bg-1));
  border-color: color-mix(in oklch, var(--warn) 35%, var(--line));
}
.page-intent-banner[data-tone="bad"] {
  background: color-mix(in oklch, var(--bad) 12%, var(--bg-1));
  border-color: color-mix(in oklch, var(--bad) 40%, var(--line));
}
.page-intent-banner.pib-sticky {
  position: sticky;
  top: var(--space-sm);
}
.page-intent-banner.pib-sticky.pib-detached {
  /* When user scrolls past the first screen, hide on small viewports
     to keep table space — keep on desktop. */
  opacity: 0.85;
  transform: scale(0.985);
  transition: opacity 0.18s ease, transform 0.18s ease;
}
.page-intent-banner .pib-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}
.page-intent-banner .pib-question {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  flex-wrap: wrap;
  font-size: 0.98rem;
  color: var(--ink-0);
}
.page-intent-banner .pib-action {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  flex-wrap: wrap;
  font-size: 0.92rem;
  color: var(--ink-1);
}
.page-intent-banner .pib-icon,
.page-intent-banner .pib-arrow {
  font-size: 1.1em;
  line-height: 1;
}
.page-intent-banner .pib-label {
  color: var(--ink-2);
  font-weight: 600;
  letter-spacing: 0.01em;
}
.page-intent-banner .pib-text {
  color: inherit;
}
.page-intent-banner .pib-explainer-btn {
  align-self: flex-start;
  background: transparent;
  border: 1px dashed color-mix(in oklch, var(--info) 50%, var(--line));
  border-radius: 6px;
  color: var(--info);
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.82rem;
  cursor: pointer;
  margin-top: var(--space-xs);
}
.page-intent-banner .pib-explainer-btn:hover,
.page-intent-banner .pib-explainer-btn:focus {
  background: color-mix(in oklch, var(--info) 18%, transparent);
  outline: 2px solid color-mix(in oklch, var(--info) 55%, transparent);
  outline-offset: 1px;
}
.page-intent-banner.pib-fallback {
  background: color-mix(in oklch, var(--bad) 8%, var(--bg-1));
  border-color: color-mix(in oklch, var(--bad) 30%, var(--line));
}
.page-intent-banner .pib-fallback-text {
  color: var(--ink-2);
  font-size: 0.86rem;
}

/* ─────────────────────────────────────────────────────────────────
   2) scorecard-narrative — auto-generated plain-language note under
      hero scoreboards.
   ───────────────────────────────────────────────────────────────── */
.scorecard-narrative {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
  margin-top: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: 6px;
  background: color-mix(in oklch, var(--bg-2) 50%, transparent);
  border-left: 3px solid var(--ink-3);
  font-size: 0.84rem;
  line-height: 1.42;
  color: var(--ink-1);
  max-width: 320px;
}
.scorecard-narrative.tone-good   { border-left-color: var(--good); }
.scorecard-narrative.tone-warn   { border-left-color: var(--warn); }
.scorecard-narrative.tone-bad    { border-left-color: var(--bad); }
.scorecard-narrative.tone-neutral{ border-left-color: var(--ink-3); }
.scorecard-narrative .narr-icon {
  font-size: 0.95em;
  line-height: 1.42;
  flex-shrink: 0;
}
.scorecard-narrative .narr-headline {
  font-weight: 600;
  color: var(--ink-0);
}
.scorecard-narrative .narr-body {
  color: var(--ink-1);
}
.scorecard-narrative.tier-gated {
  position: relative;
}
.scorecard-narrative.tier-gated::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* ─────────────────────────────────────────────────────────────────
   3) WTF popovers — desktop floating + mobile bottom sheet.
   ───────────────────────────────────────────────────────────────── */
.wtf-trigger {
  border-bottom: 1px dotted color-mix(in oklch, var(--ink-3) 60%, transparent);
  cursor: help;
  position: relative;
}
.wtf-trigger:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.wtf-popover {
  position: fixed;
  z-index: 9000;
  max-width: 300px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow-high);
  padding: var(--space-md);
  color: var(--ink-1);
  font-size: 0.86rem;
  line-height: 1.45;
  pointer-events: auto;
}
.wtf-popover[data-placement="top"]::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 10px;
  height: 10px;
  background: var(--bg-2);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.wtf-popover[data-placement="bottom"]::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 10px;
  height: 10px;
  background: var(--bg-2);
  border-left: 1px solid var(--line);
  border-top: 1px solid var(--line);
}

.wtf-bottom-sheet {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9001;
  max-height: 70vh;
  overflow-y: auto;
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  border-top-left-radius: 16px;
  border-top-right-radius: 16px;
  box-shadow: 0 -8px 32px oklch(0 0 0 / 0.40);
  padding: var(--space-lg);
  color: var(--ink-1);
  font-size: 0.92rem;
  line-height: 1.5;
  animation: wtf-sheet-up 0.22s ease-out;
}
@keyframes wtf-sheet-up {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}
.wtf-bottom-sheet .wtf-close {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink-1);
  width: 32px;
  height: 32px;
  border-radius: 16px;
  font-size: 1.4em;
  line-height: 1;
  cursor: pointer;
}
.wtf-bottom-sheet .wtf-close:hover { background: var(--bg-3); }
.wtf-backdrop {
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: oklch(0 0 0 / 0.55);
  animation: wtf-fade-in 0.18s ease-out;
}
@keyframes wtf-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.wtf-content { display: flex; flex-direction: column; gap: var(--space-sm); }
.wtf-content .wtf-head .wtf-label {
  color: var(--ink-0);
  font-weight: 600;
  font-size: 1.02em;
}
.wtf-content .wtf-definition {
  color: var(--ink-1);
}
.wtf-content .wtf-example {
  color: var(--ink-2);
  background: color-mix(in oklch, var(--bg-3) 60%, transparent);
  padding: var(--space-xs) var(--space-sm);
  border-radius: 4px;
  font-style: italic;
}
.wtf-content .wtf-example-label {
  font-weight: 600;
  color: var(--ink-1);
  font-style: normal;
}
.wtf-content .wtf-see-also {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  align-items: center;
  margin-top: var(--space-xs);
}
.wtf-content .wtf-see-also-label {
  color: var(--ink-2);
  font-size: 0.85em;
}
.wtf-content .wtf-chip {
  display: inline-block;
  padding: 2px var(--space-sm);
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--accent);
  font-size: 0.78em;
  text-decoration: none;
  background: color-mix(in oklch, var(--accent) 8%, transparent);
}
.wtf-content .wtf-chip:hover {
  background: color-mix(in oklch, var(--accent) 18%, transparent);
}

/* Mobile narrow tweaks. */
@media (max-width: 640px) {
  .page-intent-banner {
    padding: var(--space-sm) var(--space-md);
  }
  .scorecard-narrative {
    max-width: 100%;
  }
}