/* v2/site/product.css: the Product pages (issue 449, direction C, layered bands): /product/, /product/feed/, /product/ask/, /product/explore/.
 * Loaded after site.css on those four pages only. ONLY --v2-* variables (colour, type, space, radius, z, duration); no new colour, font or component.
 * Two new patterns are documented in docs/DESIGN-SYSTEM.md ("Product pages: rail and marquee"):
 *   RAIL     a sticky section list with a progress line (.pr-rail), wide screens only; product.js marks the current section.
 *   MARQUEE  one or two rows of real product cards drifting past (.pr-mq); a still, wrapped grid under reduced motion and ?static.
 * Motion budget: stroke draw, a rise-in on scroll, bars that fill, one pointer-depth offset, the primary action lifting 2px. transform, opacity and stroke
 * only. All of it is off under prefers-reduced-motion and html[data-static] (?static). Without script every band is visible (html[data-pr] is what hides them). */

/* ---------------------------------------------------------------- layout: rail + column */
.pr { display: grid; grid-template-columns: minmax(0, 1fr); }
.pr-main { min-width: 0; }
.pr-rail { display: none; }
@media (min-width: 1200px) {
  .pr { grid-template-columns: 132px minmax(0, 1fr); column-gap: var(--v2-space-48); }
  .pr-rail { display: block; }
  .pr-rail-in { position: sticky; top: var(--v2-space-24); padding-top: var(--v2-space-48); }
}
.pr-rail ol { --prog: 0; position: relative; list-style: none; margin: 0; padding: 0 0 0 var(--v2-space-16); display: grid; gap: var(--v2-space-20); }
.pr-rail ol::before, .pr-rail ol::after { content: ""; position: absolute; left: 0; top: var(--v2-space-4); bottom: var(--v2-space-4); width: 2px; border-radius: var(--v2-radius-pill); }
.pr-rail ol::before { background: var(--v2-hairline); }
.pr-rail ol::after { background: var(--v2-label); transform-origin: top; transform: scaleY(var(--prog, 0)); transition: transform var(--v2-duration-base) ease-out; }
.pr-rail a { font: var(--v2-type-control-off); color: var(--v2-labeldim); text-decoration: none; }
.pr-rail a[aria-current="location"] { font: var(--v2-type-control); color: var(--v2-label); }
.pr-rail a:hover { text-decoration: underline; text-underline-offset: 4px; }
.pr-demo { margin: var(--v2-space-32) 0 0 var(--v2-space-16); font: var(--v2-type-small); color: var(--v2-labeldim); }

/* ---------------------------------------------------------------- type */
.pr-eyebrow { margin: 0; display: flex; align-items: center; gap: var(--v2-space-8); font: var(--v2-type-eyebrow); text-transform: uppercase; color: var(--v2-labeldim); }
.pr-eyebrow .v2-mark-inline { display: inline-flex; color: var(--v2-label); }
.pr-h1, .pr-h2 { margin: 0; color: var(--v2-label); text-wrap: balance; }
.pr-h1 { font: var(--v2-type-display); }
.pr-h2 { font: var(--v2-type-heading); }
.pr-lead { margin: 0; max-width: 520px; font: var(--v2-type-lead); color: var(--v2-labeldim); }
.pr-card-note { margin: 0; font: var(--v2-type-small); color: var(--v2-body); }
.pr-linkrow { margin: var(--v2-space-24) 0 0; }
@media (min-width: 900px) {
  .pr-h1 { font: var(--v2-type-desk-display); }
  .pr-h2 { font: var(--v2-type-desk-heading); }
  .pr-lead { font: var(--v2-type-desk-lead); }
}
@media (min-width: 1100px) { .pr-h2 { font: var(--v2-type-desk-display); } }

/* ---------------------------------------------------------------- hero: text left, a stack of real cards right */
.pr-hero { display: grid; gap: var(--v2-space-32); align-items: center; padding-top: var(--v2-space-24); }
.pr-hero-text { display: flex; flex-direction: column; align-items: flex-start; gap: var(--v2-space-16); }
.pr-cta { display: grid; justify-items: start; gap: var(--v2-space-14); margin-top: var(--v2-space-16); }
.pr-cta p { margin: 0; font: var(--v2-type-default); color: var(--v2-labeldim); }
/* the primary action rewards attention: it lifts 2px, its arrow leads, and the front card of the stack grows a little */
.pr-cta .v2-pill-solid { transition: transform var(--v2-duration-base) ease-out; }
.pr-cta .v2-pill-solid .v2-icon { transition: transform var(--v2-duration-base) ease-out; }
.pr-cta .v2-pill-solid:hover, .pr-cta .v2-pill-solid:focus-visible { transform: translateY(-2px); }
.pr-cta .v2-pill-solid:hover .v2-icon, .pr-cta .v2-pill-solid:focus-visible .v2-icon { transform: translateX(4px); }
.pr-hero:has(.pr-cta .v2-pill-solid:hover) .pr-l:last-child, .pr-hero:has(.pr-cta .v2-pill-solid:focus-visible) .pr-l:last-child { scale: 1.03; }
@media (min-width: 900px) {
  .pr-hero { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--v2-space-48); padding-top: var(--v2-space-32); min-height: 560px; }
}

/* ---------------------------------------------------------------- the stack: real cards overlapping, a small tilt each, one pointer-depth offset */
.pr-stack { --px: 0; --py: 0; display: grid; isolation: isolate; padding: var(--v2-space-8) 0; }
.pr-l { position: relative; width: min(500px, 94%); transition: translate var(--v2-duration-reveal) ease-out, scale var(--v2-duration-base) ease-out; }
.pr-l + .pr-l { margin-top: calc(-1 * var(--v2-space-12)); }
.pr-l .v2-composer { margin: 0; }
.pr-l .v2-composer-input { min-height: 60px; }
.pr-l:nth-child(1) { justify-self: start; rotate: -2deg; scale: .97; translate: calc(var(--px) * -10px) calc(var(--py) * -8px); }
.pr-l:nth-child(2) { justify-self: end; rotate: 1.5deg; translate: calc(var(--px) * 18px) calc(var(--py) * 12px); }
.pr-l:nth-child(3) { justify-self: start; translate: calc(var(--px) * 30px) calc(var(--py) * 20px); }
.pr-band-visual .pr-l.a { justify-self: start; rotate: 0deg; scale: 1; width: min(520px, 100%); translate: calc(var(--px) * 14px) calc(var(--py) * 8px); }
.pr-band-visual .pr-l.b { justify-self: end; rotate: 2deg; scale: 1; width: min(320px, 78%); margin-top: calc(-1 * var(--v2-space-16)); translate: calc(var(--px) * -20px) calc(var(--py) * -14px); }
/* two-layer stacks that are a chart and a table: the table sits over the lower right of the chart */
.pr-band-visual .pr-l.a:has(.pr-chartcard) { width: min(560px, 100%); }
.pr-band-visual .pr-l.b:has(.pr-tablecard) { width: min(380px, 84%); }
.pr-bignum { margin: 0 0 var(--v2-space-4); display: flex; align-items: baseline; gap: var(--v2-space-10); font: var(--v2-type-display); color: var(--v2-cardink); }
.pr-bignum small { font: var(--v2-type-lead); color: var(--v2-body); }
.pr-src { padding: var(--v2-space-16); display: grid; gap: var(--v2-space-8); }
.pr-src b { font: var(--v2-type-subtitle); color: var(--v2-cardink); }
.pr-src-t { font: var(--v2-type-default); color: var(--v2-body); }
.pr-src .v2-sources { margin-bottom: var(--v2-space-4); }
.pr-src .v2-badge { justify-self: start; }
@media (min-width: 900px) { .pr-bignum { font: var(--v2-type-desk-big); } }

/* chart card and table card (pictures of Explore) */
.pr-chartcard, .pr-tablecard { padding: var(--v2-space-20); display: grid; gap: var(--v2-space-12); }
.pr-chartcard-top { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--v2-space-12); }
.pr-chartcard-label { margin: 0; font: var(--v2-type-small); color: var(--v2-body); }
.pr-chartcard-num { margin: 0; font: var(--v2-type-display); color: var(--v2-cardink); }
.pr-chart { display: block; width: 100%; height: auto; overflow: visible; }
.pr-grid { stroke: var(--v2-cardline); stroke-width: 1; }
.pr-area { fill: var(--v2-goodwash); }
.pr-line { fill: none; stroke: var(--v2-good); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 1; stroke-dashoffset: 0; }
.pr-dot { fill: var(--v2-good); }
@media (min-width: 900px) { .pr-chartcard-num { font: var(--v2-type-desk-big); } }

/* ---------------------------------------------------------------- bands: text on one side, a layered visual on the other */
.pr-band { margin-top: var(--v2-space-72); display: grid; gap: var(--v2-space-24); scroll-margin-top: var(--v2-space-24); }
.pr-head { display: flex; flex-direction: column; gap: var(--v2-space-12); }
.pr-band-meta { margin: var(--v2-space-16) 0 0; }
@media (min-width: 900px) {
  .pr-band { margin-top: var(--v2-space-96); grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: var(--v2-space-64); align-items: center; }
  .pr-band.is-flip .pr-band-text { order: 2; }
}
.pr-qband, .pr-controls, .pr-also { display: block; }
.pr-qband > .pr-head, .pr-controls > .pr-head { margin-bottom: var(--v2-space-24); }
.pr-qband .pr-lead, .pr-controls .pr-lead { max-width: 640px; }

/* marquee: real cards drifting past, one row each way; paused on hover; a still grid when motion is off */
.pr-mq { overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, black 6%, black 94%, transparent); mask-image: linear-gradient(90deg, transparent, black 6%, black 94%, transparent); }
.pr-mq + .pr-mq { margin-top: var(--v2-space-8); }
.pr-mq-track { list-style: none; margin: 0; padding: var(--v2-space-8) 0; display: flex; gap: var(--v2-space-14); width: max-content; animation: pr-slide var(--v2-duration-marquee) linear infinite; }
.pr-mq.is-rev .pr-mq-track { animation-direction: reverse; }
.pr-mq:hover .pr-mq-track { animation-play-state: paused; }
.pr-mq-track > li { flex: none; width: 340px; }
.pr-mq.is-findings .pr-mq-track > li { width: 420px; }
.pr-mq-track .v2-finding { height: 100%; }
@keyframes pr-slide { to { transform: translateX(calc(-50% - var(--v2-space-14) / 2)); } }

/* price ladder: bars that fill in once */
.pr-ladder { padding: var(--v2-space-28) var(--v2-space-28) var(--v2-space-24); display: grid; gap: var(--v2-space-14); }
.pr-ladder-h { margin: 0; font: var(--v2-type-eyebrow); text-transform: uppercase; color: var(--v2-body); }
.pr-lrow { display: grid; grid-template-columns: 76px minmax(0, 1fr) 150px; gap: var(--v2-space-14); align-items: center; font: var(--v2-type-default); color: var(--v2-cardink); }
.pr-lrow span:last-child { text-align: right; font: var(--v2-type-strong); }
.pr-bar { height: 10px; border-radius: var(--v2-radius-pill); background: var(--v2-zebra); overflow: hidden; }
.pr-bar i { display: block; height: 100%; width: 100%; border-radius: inherit; background: var(--v2-cardink); transform-origin: left; transform: scaleX(var(--w)); transition: transform var(--v2-duration-draw) ease-out; }

/* ladder of steps (the Feed steps, the Explore saved views): each row steps in a little further */
.pr-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--v2-space-12); }
.pr-steps > li { margin-left: calc(var(--i, 0) * var(--v2-space-8)); }
.pr-step { padding: var(--v2-space-16) var(--v2-space-20); }
.pr-step-k { margin: 0; font: var(--v2-type-subtitle); color: var(--v2-cardink); }
.pr-step-t { margin: var(--v2-space-2) 0 0; font: var(--v2-type-default); color: var(--v2-body); }
@media (min-width: 900px) { .pr-steps > li { margin-left: calc(var(--i, 0) * var(--v2-space-24)); } }

/* framed cells: related facts in ONE card with hairline dividers */
.pr-cells { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: minmax(0, 1fr); }
.pr-cells > li { padding: var(--v2-space-20); }
.pr-cells > li + li { border-top: 1px solid var(--v2-cardline); }
.pr-cell-k { margin: 0 0 var(--v2-space-8); font: var(--v2-type-eyebrow); text-transform: uppercase; color: var(--v2-body); }
.pr-cell-t { margin: 0; font: var(--v2-type-body); color: var(--v2-cardink); }
@media (min-width: 900px) {
  .pr-cells { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .pr-cells.is-three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .pr-cells > li { padding: var(--v2-space-24); }
  .pr-cells > li + li { border-top: 0; border-left: 1px solid var(--v2-cardline); }
}

/* the other two modes, and the closing band */
.pr-also { margin-top: var(--v2-space-72); }
.pr-also-grid { display: grid; gap: var(--v2-space-16); margin-top: var(--v2-space-12); grid-template-columns: minmax(0, 1fr); }
@media (min-width: 640px) { .pr-also-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 900px) { .pr-also { margin-top: var(--v2-space-96); } }

/* ---------------------------------------------------------------- phone */
@media (max-width: 899px) {
  .pr-l, .pr-band-visual .pr-l.a, .pr-band-visual .pr-l.b { width: 94%; }
  .pr-band-visual .pr-l.b { width: 80%; }
  .pr-lrow { grid-template-columns: 64px minmax(0, 1fr) auto; gap: var(--v2-space-10); font: var(--v2-type-small); }
  .pr-lrow span:last-child { white-space: nowrap; }
  .pr-ladder { padding: var(--v2-space-20); }
  .pr-mq-track > li, .pr-mq.is-findings .pr-mq-track > li { width: 300px; }
}

/* ---------------------------------------------------------------- motion (all of it off under reduced motion and ?static) */
@keyframes pr-rise { from { opacity: 0; translate: 0 var(--v2-space-24); } }
@keyframes pr-draw { from { stroke-dashoffset: 1; } }
@keyframes pr-fade { from { opacity: 0; } }
.pr-hero-text > * { animation: pr-rise var(--v2-duration-reveal) ease-out both; }
.pr-hero-text > :nth-child(2) { animation-delay: 80ms; }
.pr-hero-text > :nth-child(3) { animation-delay: 160ms; }
.pr-hero-text > :nth-child(4) { animation-delay: 240ms; }
.pr-hero .pr-l { animation: pr-rise var(--v2-duration-reveal) ease-out both; }
.pr-hero .pr-l:nth-child(2) { animation-delay: 140ms; }
.pr-hero .pr-l:nth-child(3) { animation-delay: 280ms; }
.pr-hero .pr-line { animation: pr-draw var(--v2-duration-draw) ease-out both; animation-delay: 300ms; }
.pr-hero :is(.pr-area, .pr-dot) { animation: pr-fade var(--v2-duration-reveal) ease-out both; animation-delay: 900ms; }
/* below the fold, bands rise into view (product.js adds .on); only when script is running (html[data-pr]) */
html[data-pr] .pr-in { opacity: 0; transform: translateY(var(--v2-space-16)); transition: opacity var(--v2-duration-reveal) ease-out, transform var(--v2-duration-reveal) ease-out; }
html[data-pr] .pr-in.on { opacity: 1; transform: none; }
html[data-pr] .pr-in:not(.on) .pr-line { stroke-dashoffset: 1; }
html[data-pr] .pr-in:not(.on) :is(.pr-area, .pr-dot) { opacity: 0; }
html[data-pr] .pr-line { transition: stroke-dashoffset var(--v2-duration-draw) ease-out; }
html[data-pr] :is(.pr-area, .pr-dot) { transition: opacity var(--v2-duration-reveal) ease-out; }
html[data-pr] .pr-ladder:not(.on) .pr-bar i { transform: scaleX(0); }

@media (prefers-reduced-motion: reduce) {
  .pr-hero-text > *, .pr-hero .pr-l, .pr-hero .pr-line, .pr-hero :is(.pr-area, .pr-dot) { animation: none; }
  html[data-pr] .pr-in { opacity: 1; transform: none; transition: none; }
  html[data-pr] .pr-in:not(.on) .pr-line { stroke-dashoffset: 0; }
  html[data-pr] .pr-in:not(.on) :is(.pr-area, .pr-dot) { opacity: 1; }
  html[data-pr] .pr-ladder:not(.on) .pr-bar i { transform: scaleX(var(--w)); }
  .pr-rail ol::after, .pr-l, .pr-bar i, .pr-cta .v2-pill-solid, .pr-cta .v2-pill-solid .v2-icon { transition: none; }
  .pr-mq { overflow: visible; -webkit-mask-image: none; mask-image: none; }
  .pr-mq-track { animation: none; width: auto; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
  .pr-mq-track > li { width: auto; }
  .pr-mq-track > li[aria-hidden="true"] { display: none; }
}
html[data-static] .pr-hero-text > *, html[data-static] .pr-hero .pr-l, html[data-static] .pr-hero .pr-line, html[data-static] .pr-hero :is(.pr-area, .pr-dot) { animation: none; }
html[data-static][data-pr] .pr-in { opacity: 1; transform: none; transition: none; }
html[data-static][data-pr] .pr-in:not(.on) .pr-line { stroke-dashoffset: 0; }
html[data-static][data-pr] .pr-in:not(.on) :is(.pr-area, .pr-dot) { opacity: 1; }
html[data-static][data-pr] .pr-ladder:not(.on) .pr-bar i { transform: scaleX(var(--w)); }
html[data-static] .pr-rail ol::after, html[data-static] .pr-l, html[data-static] .pr-bar i, html[data-static] .pr-cta .v2-pill-solid, html[data-static] .pr-cta .v2-pill-solid .v2-icon { transition: none; }
html[data-static] .pr-mq { overflow: visible; -webkit-mask-image: none; mask-image: none; }
html[data-static] .pr-mq-track { animation: none; width: auto; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
html[data-static] .pr-mq-track > li { width: auto; }
html[data-static] .pr-mq-track > li[aria-hidden="true"] { display: none; }