/*
 * PeptideIndex — site-specific layer on top of design-system.css.
 * Only uses design-system custom properties (--ink, --panel, --brass, ...)
 * -- no new literal colors are introduced here.
 */

/* ---------- Chrome: top bar / RUO banner / footer, every page ---------- */

.pi-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: .85rem 1.5rem;
  background: var(--panel);
  border-bottom: 1px solid var(--rule-strong);
}
.pi-brand {
  display: inline-flex;
  align-items: center;
  gap: .55em;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--paper);
  text-decoration: none;
  white-space: nowrap;
}
.pi-brand svg { width: 22px; height: 22px; color: var(--brass); flex: none; }
.pi-topbar-search { flex: 1; max-width: 30rem; margin-left: auto; position: relative; }
.pi-topbar-search input {
  width: 100%;
}
.pi-nav-link {
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--paper-dim);
  text-decoration: none;
  white-space: nowrap;
}
.pi-nav-link:hover { color: var(--brass); }

.pi-ruo-banner {
  background: var(--panel-deep);
  border-bottom: 1px solid var(--rule);
  color: var(--paper-dim);
  font-size: .72rem;
  letter-spacing: .03em;
  text-align: center;
  padding: .4rem 1rem;
}
.pi-ruo-banner strong { color: var(--caution); font-weight: 700; }

.pi-footer {
  border-top: 1px solid var(--rule-strong);
  margin-top: 3rem;
  padding: 2rem 1.5rem 2.5rem;
  color: var(--paper-faint);
  font-size: .78rem;
  line-height: 1.6;
  text-align: center;
}
.pi-footer p { margin: .35rem 0; max-width: 42rem; margin-left: auto; margin-right: auto; }
.pi-footer .pi-disclaimer { color: var(--paper-dim); }
.pi-footer .pi-disclaimer strong { color: var(--caution); }

.pi-shell { max-width: 72rem; margin: 0 auto; padding: 0 1.5rem; }

/* ---------- Inputs ---------- */

input[type="search"], input[type="text"] {
  font-family: var(--font-sans);
  font-size: .95rem;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  padding: .65em .9em;
  width: 100%;
}
input[type="search"]:focus, input[type="text"]:focus {
  outline: none;
  border-color: var(--brass);
}
input::placeholder { color: var(--paper-faint); }

/* ---------- Home / search ---------- */

.pi-home {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - 46px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 1.5rem 2rem;
  text-align: center;
}
/* Signature touch: a faint tiled peptide-backbone motif (the same
   zig-zag/amide-bond shape as the logo) behind the home hero only -- one
   deliberate callback to the subject's own vernacular, kept quiet enough to
   never compete with the search box. Not used anywhere else on the site. */
.pi-home::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='72' height='42' viewBox='0 0 72 42'%3E%3Cpath d='M0 30 L12 12 L24 30 L36 12 L48 30 L60 12 L72 30' fill='none' stroke='%232DD4BF' stroke-width='1.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: repeat;
  opacity: .07;
  z-index: 0;
}
.pi-home > * { position: relative; z-index: 1; }
.pi-home-logo { width: 64px; height: 64px; color: var(--brass); margin-bottom: 1.1rem; }
.pi-home-wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-5);
  letter-spacing: -0.01em;
  margin: 0 0 .35rem;
}
.pi-home-tagline {
  color: var(--paper-dim);
  font-size: var(--step-0);
  margin: 0 0 2.25rem;
}
.pi-home-searchwrap { width: 100%; max-width: 34rem; position: relative; }
.pi-home-searchwrap input { font-size: 1.05rem; padding: .9em 1.1em; }

.pi-autocomplete {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: var(--panel);
  border: 1px solid var(--rule-strong);
  z-index: 30;
  max-height: 22rem;
  overflow-y: auto;
  text-align: left;
}
.pi-autocomplete[hidden] { display: none; }
.pi-ac-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .7em 1em;
  text-decoration: none;
  color: var(--paper);
  border-top: 1px solid var(--rule);
  cursor: pointer;
}
.pi-ac-row:first-child { border-top: none; }
.pi-ac-row:hover, .pi-ac-row.is-active { background: var(--panel-mid); }
.pi-ac-name { font-family: var(--font-display); font-weight: 600; }
.pi-ac-meta { font-size: .78rem; color: var(--paper-faint); white-space: nowrap; }
.pi-ac-meta .price { font-family: var(--font-mono); font-variant-numeric: tabular-nums; color: var(--brass); }
.pi-ac-empty, .pi-ac-error { padding: 1em; color: var(--paper-faint); font-size: .85rem; }
.pi-ac-kicker { padding: .6em 1em .2em; font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--paper-faint); }

/* ---------- Section header (leaderboard/drill-down) ---------- */

.pi-page { padding: 2rem 0 2rem; }
.pi-page-head { margin-bottom: 1.5rem; }
.pi-page-head h1 { font-size: var(--step-3); margin: .2rem 0 .3rem; }
.pi-page-head p { color: var(--paper-dim); margin: 0; max-width: 46rem; }

/* ---------- Sort controls ---------- */

.pi-sortbar { display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: 1rem; }
.pi-sort-btn {
  font-family: var(--font-sans);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .03em;
  color: var(--paper-dim);
  background: transparent;
  border: 1px solid var(--rule-strong);
  padding: .45em .9em;
  cursor: pointer;
}
.pi-sort-btn.is-active { color: var(--ink); background: var(--brass); border-color: var(--brass); }
.pi-sort-btn:hover:not(.is-active) { border-color: var(--brass); color: var(--brass); }

/* ---------- Leaderboard ---------- */

.pi-leaderboard th[data-sort] { cursor: pointer; user-select: none; }
.pi-leaderboard th[data-sort]:hover { color: var(--brass); }
.pi-leaderboard td.num, .pi-leaderboard th.num { text-align: right; font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.pi-leaderboard a.pi-row-link { color: var(--paper); font-family: var(--font-display); font-weight: 600; text-decoration: none; }
.pi-leaderboard a.pi-row-link:hover { color: var(--brass); }

.pi-trend { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-weight: 600; }
.pi-trend.up { color: var(--negative); }     /* price went up = worse for buyers */
.pi-trend.down { color: var(--positive); }   /* price went down = cheaper = good */
.pi-trend.flat { color: var(--paper-faint); }
.pi-trend.na { color: var(--paper-faint); font-style: italic; font-weight: 400; }

/* ---------- Skeleton / empty / error states ---------- */

.pi-skeleton-row { background: linear-gradient(90deg, var(--panel) 25%, var(--panel-mid) 37%, var(--panel) 63%); background-size: 400% 100%; animation: pi-shimmer 1.4s ease infinite; }
@keyframes pi-shimmer { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }
@media (prefers-reduced-motion: reduce) { .pi-skeleton-row { animation: none; } }

.pi-state {
  padding: 2.5rem 1.5rem;
  text-align: center;
  color: var(--paper-dim);
  border: 1px dashed var(--rule-strong);
}
.pi-state.pi-state-error { color: var(--negative); border-color: rgba(224, 106, 90, .4); }
.pi-state h3 { font-size: var(--step-1); margin: 0 0 .4rem; color: var(--paper); }

/* ---------- KPI tile ---------- */

.pi-kpi-tile {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  gap: 1px;
  background: var(--rule-strong);
  border: 1px solid var(--rule-strong);
}
.pi-kpi-cell { background: var(--panel); padding: 1rem 1.1rem; }
.pi-kpi-label { display: block; font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--paper-faint); margin-bottom: .4rem; }
.pi-kpi-value { display: block; font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-weight: 600; font-size: var(--step-2); color: var(--brass); }
.pi-kpi-value.small { font-size: var(--step-1); color: var(--paper); font-family: var(--font-sans); font-weight: 600; }
.pi-kpi-sub { display: block; font-size: .72rem; color: var(--paper-faint); margin-top: .25rem; }
.pi-badges { display: flex; gap: .4rem; flex-wrap: wrap; margin-top: .75rem; }
.pi-badge {
  display: inline-flex; align-items: center; gap: .35em;
  font-size: 10px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  padding: .25em .55em; border: 1px solid var(--rule-strong); color: var(--paper-dim);
}
.pi-badge.warn { color: var(--caution); border-color: rgba(224, 164, 75, .5); background: rgba(224, 164, 75, .08); }
.pi-badge.blend { color: var(--brass); border-color: rgba(45, 212, 191, .4); }
.pi-badge.topical { color: var(--paper-faint); }
/* "good" = a buyer-favourable, history-backed signal (at 90-day low, price
   dropping, best $/mg). Teal, matching the "cheaper = good" convention. */
.pi-badge.good { color: var(--brass); border-color: rgba(45, 212, 191, .5); background: rgba(45, 212, 191, .08); }

/* ---------- Drill-down ---------- */

.pi-detail-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: .75rem; margin-bottom: .4rem; }
.pi-detail-head h1 { margin: 0; }
.pi-aliases { color: var(--paper-faint); font-size: .85rem; }
.pi-desc { color: var(--paper-dim); max-width: 50rem; margin: .5rem 0 1.5rem; }

.pi-panel { border: 1px solid var(--rule-strong); background: var(--panel); margin: 1.5rem 0; }
.pi-panel-head {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: .75rem;
  padding: .9rem 1.2rem; border-bottom: 1px solid var(--rule);
}
.pi-panel-head h2 { font-size: var(--step-1); margin: 0; }
.pi-panel-body { padding: 1.2rem; }

/* Hero history panel: the price-over-time chart leads the drill-down (the
   moat), so it gets a slightly stronger frame than the panels below it. */
.pi-panel-hero { border-color: var(--rule-strong); border-top: 2px solid var(--brass); }
.pi-panel-hero .pi-panel-head .kicker { display: block; margin-bottom: .15rem; }
.pi-hero-note {
  margin: 1rem 0 0;
  font-size: .78rem;
  line-height: 1.55;
  color: var(--paper-faint);
  font-variant-numeric: tabular-nums;
}

.pi-range-toggle { display: inline-flex; border: 1px solid var(--rule-strong); }
.pi-range-toggle button {
  font-family: var(--font-mono); font-size: .78rem; font-weight: 600; color: var(--paper-dim);
  background: transparent; border: none; padding: .4em .85em; cursor: pointer;
  border-left: 1px solid var(--rule-strong);
}
.pi-range-toggle button:first-child { border-left: none; }
.pi-range-toggle button.is-active { background: var(--brass); color: var(--ink); }

.pi-chart-wrap { position: relative; }
.pi-chart-wrap svg { width: 100%; height: auto; display: block; overflow: visible; }
.pi-chart-legend { display: flex; gap: 1.25rem; margin-bottom: .75rem; font-size: .78rem; color: var(--paper-dim); }
.pi-chart-legend .swatch { display: inline-block; width: 10px; height: 10px; margin-right: .4em; vertical-align: -1px; }
.pi-chart-tooltip {
  position: absolute; pointer-events: none; background: var(--ink); border: 1px solid var(--brass);
  padding: .4em .65em; font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-size: .74rem; white-space: nowrap;
  transform: translate(-50%, -120%); opacity: 0; transition: opacity .08s ease;
}
.pi-chart-tooltip.is-visible { opacity: 1; }

.pi-vendor-toggle-row { display: flex; align-items: center; gap: .5em; font-size: .8rem; color: var(--paper-dim); }

.pi-diff { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-weight: 600; }
.pi-diff.up { color: var(--negative); }
.pi-diff.down { color: var(--positive); }
.pi-diff.flat { color: var(--paper-faint); }

.pi-vendor-link { color: var(--paper); text-decoration: none; font-weight: 600; }
.pi-vendor-link:hover { color: var(--brass); text-decoration: underline; }
.pi-vendor-link:not(.pi-vendor-nolink)::after { content: ' ↗'; font-size: .75em; color: var(--paper-faint); }
/* No-link fallback (invalid pricing_page_url scheme): not clickable, so no
   hover/underline and no outbound-link arrow -- must not look like a link. */
.pi-vendor-link.pi-vendor-nolink { cursor: default; }
.pi-vendor-link.pi-vendor-nolink:hover { color: var(--paper); text-decoration: none; }

/* "What you actually buy" -- the scraped pack (e.g. "2 × 40mg vials") shown as
   a small, secondary line under the normalized package size in the vendor
   table. Research-use context only; never dosing/protocol framing. */
.pi-pack-desc { display: block; margin-top: .15rem; font-size: .72rem; color: var(--paper-faint); }

.pi-nav-link.is-current { color: var(--brass); }

/* ======================================================================== */
/* Blends + stacks                                                          */
/* ======================================================================== */

/* ---------- Search-result tags (autocomplete + leaderboard rows) -------- */
/* A Blend/Stack tag rides the NAME everywhere a blend or stack can sit next
   to a single compound -- the autocomplete dropdown is the worst confusion
   point, so the tag is never optional there. */
.pi-ac-tag {
  display: inline-block;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .12em .45em;
  margin-left: .5em;
  vertical-align: 1px;
  border: 1px solid var(--rule-strong);
}
.pi-ac-tag.blend { color: var(--brass); border-color: rgba(45, 212, 191, .5); background: rgba(45, 212, 191, .07); }
.pi-ac-tag.stack { color: var(--caution); border-color: rgba(224, 164, 75, .5); background: rgba(224, 164, 75, .07); }

/* ---------- "Not a single-compound $/mg" banner ------------------------- */
.pi-blend-banner {
  border: 1px solid rgba(45, 212, 191, .35);
  border-left-width: 3px;
  background: rgba(45, 212, 191, .06);
  color: var(--paper-dim);
  padding: .75em 1em;
  font-size: .82rem;
  margin: 0 0 1.25rem;
}
.pi-blend-banner strong { color: var(--brass); }

/* ---------- "varies by formulation" indicator -------------------------- */
/* When a blend's total mg varies widely across vendors, a single cross-vendor
   $/mg is misleading -- this replaces the number, deliberately styled as a
   caution, not a price. */
.pi-varies {
  font-family: var(--font-sans);
  font-style: italic;
  font-weight: 500;
  color: var(--caution);
}

/* ---------- Blend leaderboard: composition subline ---------------------- */
.pi-blend-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--paper-faint);
  margin-top: .2rem;
}
.pi-blend-leaderboard td.num { white-space: nowrap; }

/* ---------- Breadcrumb + compliance/disclaimer copy --------------------- */
.pi-crumb { margin: 0 0 .75rem; font-size: .8rem; }
.pi-crumb a { color: var(--paper-faint); text-decoration: none; }
.pi-crumb a:hover { color: var(--brass); }
.pi-compliance {
  border-left: 2px solid var(--rule-strong);
  padding-left: .9em;
  margin: 1rem 0 0;
  color: var(--paper-faint);
  font-size: .8rem;
  line-height: 1.6;
  max-width: 50rem;
}
.pi-blend-rowdisclaimer {
  padding: .7em 1.2em;
  margin: 0;
  border-bottom: 1px solid var(--rule);
  color: var(--paper-faint);
  font-size: .76rem;
  line-height: 1.5;
}

/* ---------- Signature: the composition "recipe strip" ------------------- */
/* Each component's typical dose, joined with faint plus marks -- the one
   element that visually says "this is a mix", echoing the blend's own key. */
.pi-composition { margin: 1rem 0 1.25rem; }
.pi-comp-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: .4rem;
}
.pi-comp {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: .1rem;
  border: 1px solid var(--rule-strong);
  background: var(--panel);
  padding: .5em .85em;
  min-width: 4.5rem;
}
.pi-comp-name { font-family: var(--font-display); font-weight: 600; font-size: .85rem; color: var(--paper); }
.pi-comp-mg { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-weight: 600; font-size: 1.05rem; color: var(--brass); }
.pi-comp-mg::after { content: ' mg'; font-size: .6em; color: var(--paper-faint); font-weight: 400; }
.pi-comp-plus { align-self: center; font-family: var(--font-mono); color: var(--paper-faint); font-weight: 600; }
.pi-comp-note { margin-top: .5rem; font-size: .76rem; color: var(--paper-faint); }

/* ---------- Stack: side-by-side, no summed price ------------------------ */
.pi-stack-policy {
  border: 1px solid rgba(224, 164, 75, .4);
  border-left-width: 3px;
  background: rgba(224, 164, 75, .06);
  color: var(--paper-dim);
  padding: .75em 1em;
  font-size: .82rem;
  margin: 0 0 1.5rem;
}
.pi-stack-policy strong { color: var(--caution); }
.pi-stack-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: stretch;
  gap: .75rem;
}
.pi-stack-card {
  border: 1px solid var(--rule-strong);
  background: var(--panel);
  padding: 1.25rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: .35rem;
}
.pi-stack-card-head { margin-bottom: .25rem; }
.pi-stack-name { font-family: var(--font-display); font-weight: 700; font-size: var(--step-1); color: var(--paper); text-decoration: none; }
a.pi-stack-name:hover { color: var(--brass); }
.pi-stack-price { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-weight: 600; font-size: var(--step-3); color: var(--brass); line-height: 1.1; }
.pi-stack-unit { font-size: .4em; color: var(--paper-faint); font-weight: 400; }
.pi-stack-meta { font-size: .78rem; color: var(--paper-faint); }
.pi-stack-cta { margin-top: auto; padding-top: .6rem; }
.pi-stack-link { font-size: .8rem; font-weight: 600; color: var(--brass); text-decoration: none; }
.pi-stack-link:hover { text-decoration: underline; }
.pi-stack-nolink { font-size: .78rem; color: var(--paper-faint); font-style: italic; }
.pi-stack-join {
  align-self: center;
  font-family: var(--font-mono);
  font-size: var(--step-3);
  font-weight: 600;
  color: var(--paper-faint);
}

@media (max-width: 640px) {
  .pi-topbar { flex-wrap: wrap; }
  .pi-topbar-search { order: 3; flex-basis: 100%; margin-left: 0; }
  .pi-kpi-tile { grid-template-columns: repeat(2, 1fr); }
  .pi-stack-grid { grid-template-columns: 1fr; }
  .pi-stack-join { justify-self: center; }
}

/* ---------- Serverless wake-up banner (api.js retry path) ---------- */
.pi-wake-banner {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  transform: translateX(-50%);
  z-index: 60;
  max-width: min(92vw, 34rem);
  padding: .6rem 1rem;
  background: var(--panel-mid);
  border: 1px solid var(--brass);
  color: var(--paper);
  font-size: .82rem;
  box-shadow: 0 6px 24px rgba(0, 0, 0, .45);
}

/* ---------- Vendor directory (/database/) ---------- */
.pi-vendors-stat {
  margin: 0 0 .6rem;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .04em;
  color: var(--paper-faint);
}
.pi-vendors-count { font-family: var(--font-mono); font-variant-numeric: tabular-nums; color: var(--brass); }
.pi-vendor-list { list-style: none; margin: 0 0 2rem; padding: 0; border-top: 1px solid var(--rule); }
.pi-vendor-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: .75rem .6rem;
  border-bottom: 1px solid var(--rule);
  transition: background-color .12s ease;
}
.pi-vendor-row:hover { background: var(--panel); }
.pi-vendor-logo,
.pi-vendor-mono {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  border-radius: var(--radius);
}
.pi-vendor-logo { object-fit: contain; background: var(--panel); }
.pi-vendor-mono {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--panel-mid);
  border: 1px solid var(--rule-strong);
  color: var(--brass-bright);
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  text-transform: uppercase;
}
.pi-vendor-id { display: flex; flex-direction: column; gap: .18rem; min-width: 0; }
.pi-vendor-name { font-weight: 600; font-size: var(--step-0); line-height: 1.25; color: var(--paper); }
.pi-vendor-domain {
  font-family: var(--font-mono);
  font-size: .75rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pi-vendor-domain a { color: var(--paper-faint); text-decoration: none; }
.pi-vendor-domain a:hover,
.pi-vendor-row:hover .pi-vendor-domain a { color: var(--brass-bright); }
.pi-vendor-domain a:hover { text-decoration: underline; }
.pi-vendor-count {
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .05em;
  color: var(--paper-dim);
  border: 1px solid var(--rule-strong);
  background: rgba(45, 212, 191, .05);
  padding: .3em .7em;
  white-space: nowrap;
}
@media (max-width: 480px) {
  .pi-vendor-row { gap: .7rem; padding: .65rem .35rem; }
  .pi-vendor-logo,
  .pi-vendor-mono { width: 32px; height: 32px; flex-basis: 32px; }
  .pi-vendor-mono { font-size: .9rem; }
  .pi-vendor-count { font-size: .68rem; padding: .25em .5em; }
}

/* ---------- About page ---------- */
.pi-prose { max-width: 46rem; }
.pi-prose h2 {
  font-family: var(--font-display);
  font-size: var(--step-1);
  margin: 2rem 0 .5rem;
}
.pi-prose p, .pi-prose li { color: var(--paper-dim); line-height: 1.65; }
.pi-prose strong { color: var(--paper); }

.pi-footer-links a { color: var(--paper-dim); text-decoration: none; }
.pi-footer-links a:hover { color: var(--brass-bright); text-decoration: underline; }

/* ======================================================================== */
/* Browse home -- card grid + vendor-filter sidebar                         */
/* ======================================================================== */

/* Compact hero: a quiet header above the grid, not a full-viewport splash --
   the browse grid is the front door now, so the hero must not push it down. */
.pi-browse-hero { padding: 1.75rem 0 1.25rem; }
.pi-browse-hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-3);
  letter-spacing: -0.01em;
  margin: 0 0 .3rem;
}
.pi-browse-hero p { color: var(--paper-dim); margin: 0; max-width: 44rem; font-size: var(--step-0); }
.pi-browse-hero .pi-trustline {
  margin-top: .6rem;
  font-size: .78rem;
  color: var(--paper-faint);
}
.pi-browse-hero .pi-trustline strong { color: var(--brass); font-weight: 600; }

/* Two-column shell: vendor sidebar + main grid. Collapses to one column
   (sidebar becomes a <details> disclosure) below the breakpoint. */
.pi-browse {
  display: grid;
  grid-template-columns: 16rem minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
  padding-bottom: 2rem;
}
.pi-browse-main { min-width: 0; }

/* ---------- Toolbar: search filter + sort toggle ---------- */
.pi-browse-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem 1rem;
  margin-bottom: 1.25rem;
}
.pi-browse-filter { flex: 1 1 16rem; min-width: 12rem; position: relative; }
.pi-browse-filter input { padding-left: 2.2rem; }
.pi-browse-filter::before {
  content: '';
  position: absolute;
  left: .8rem;
  top: 50%;
  width: 14px;
  height: 14px;
  transform: translateY(-50%);
  opacity: .5;
  background: no-repeat center / contain
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232DD4BF' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M21 21l-4.3-4.3'/%3E%3C/svg%3E");
  pointer-events: none;
}
.pi-browse-count {
  font-size: .78rem;
  color: var(--paper-faint);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.pi-browse-count strong { color: var(--paper); font-weight: 600; }

/* ---------- Card grid ---------- */
.pi-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: 1px;
  background: var(--rule-strong);
  border: 1px solid var(--rule-strong);
}
.pi-card {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  background: var(--panel);
  padding: 1.1rem 1.15rem 1.15rem;
  text-decoration: none;
  color: var(--paper);
  transition: background-color .12s ease;
  position: relative;
}
.pi-card:hover { background: var(--panel-mid); }
.pi-card:focus-visible { outline: 2px solid var(--brass); outline-offset: -2px; }
.pi-card-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-1);
  line-height: 1.2;
  color: var(--paper);
}
.pi-card:hover .pi-card-name { color: var(--brass-bright); }
.pi-card-class {
  font-size: .76rem;
  line-height: 1.35;
  color: var(--paper-dim);
  min-height: 2.05em;
}
.pi-card-foot {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: .5rem;
  margin-top: .5rem;
  padding-top: .65rem;
  border-top: 1px solid var(--rule);
}
.pi-card-price {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--brass);
  white-space: nowrap;
}
.pi-card-price .pi-card-from {
  display: block;
  font-family: var(--font-sans);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--paper-faint);
}
.pi-card-price .pi-card-amount { font-size: var(--step-1); }
.pi-card-price .pi-card-unit { font-size: .62em; color: var(--paper-faint); font-weight: 400; }
.pi-card-vendors {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .72rem;
  color: var(--paper-dim);
  border: 1px solid var(--rule-strong);
  background: rgba(45, 212, 191, .05);
  padding: .3em .6em;
  white-space: nowrap;
  align-self: center;
}
.pi-card-vendors.is-filtered { color: var(--brass); border-color: rgba(45, 212, 191, .4); }

/* ---------- Vendor-filter sidebar ---------- */
.pi-sidebar {
  border: 1px solid var(--rule-strong);
  background: var(--panel);
  position: sticky;
  top: 4rem;
}
.pi-sidebar-head {
  padding: .85rem 1rem;
  border-bottom: 1px solid var(--rule);
}
.pi-sidebar-head h2 {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--paper-faint);
  margin: 0 0 .5rem;
}
.pi-sidebar-count { font-size: .78rem; color: var(--paper-dim); font-variant-numeric: tabular-nums; }
.pi-sidebar-count strong { color: var(--brass); font-weight: 600; }
.pi-sidebar-actions { display: flex; gap: .4rem; margin-top: .6rem; }
.pi-sidebar-actions button {
  font-family: var(--font-sans);
  font-size: .72rem;
  font-weight: 600;
  color: var(--paper-dim);
  background: transparent;
  border: 1px solid var(--rule-strong);
  padding: .3em .6em;
  cursor: pointer;
}
.pi-sidebar-actions button:hover { border-color: var(--brass); color: var(--brass); }
.pi-sidebar-search { padding: .6rem 1rem 0; }
.pi-sidebar-search input { font-size: .82rem; padding: .45em .7em; }
.pi-vendor-filter-list {
  list-style: none;
  margin: .5rem 0 0;
  padding: 0 .35rem .6rem;
  max-height: 26rem;
  overflow-y: auto;
}
.pi-vendor-filter-item { margin: 0; }
.pi-vendor-filter-item label {
  display: flex;
  align-items: center;
  gap: .55rem;
  padding: .4rem .65rem;
  font-size: .82rem;
  color: var(--paper-dim);
  cursor: pointer;
  line-height: 1.25;
}
.pi-vendor-filter-item label:hover { background: var(--panel-mid); color: var(--paper); }
.pi-vendor-filter-item input { width: auto; flex: none; accent-color: var(--brass); }
.pi-vendor-filter-item .vname { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Mobile: sidebar becomes a collapsible disclosure above the grid. */
.pi-sidebar-toggle { display: none; }
@media (max-width: 800px) {
  .pi-browse { grid-template-columns: 1fr; }
  .pi-sidebar { position: static; }
  .pi-sidebar.is-collapsed .pi-sidebar-body { display: none; }
  .pi-sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: .85rem 1rem;
    background: transparent;
    border: none;
    color: var(--paper);
    font-family: var(--font-sans);
    font-size: .85rem;
    font-weight: 600;
    cursor: pointer;
  }
  .pi-sidebar-toggle .chev { color: var(--brass); transition: transform .15s ease; }
  .pi-sidebar.is-collapsed .pi-sidebar-toggle .chev { transform: rotate(-90deg); }
  .pi-sidebar-head { border-bottom: none; }
  .pi-vendor-filter-list { max-height: 18rem; }
}