/* ---------------------------------------------------------------------------
   Premium Peptides — editorial-minimal stylesheet
   Warm monochrome, typographic contrast, no gradients, no heavy shadows.
   --------------------------------------------------------------------------- */

:root {
  --bg:        #f7f3ec;
  --bg-elev:  #fdfaf3;
  --ink:      #1a1814;
  --muted:    #6b665d;
  --rule:     #d9d2c2;
  --accent:   #8a3a2a;
  --good:     #2e5e34;
  --warn:     #b04a1a;
  --hover:    #efeadf;
  --selected: #ece4d2;

  --font-serif: "Iowan Old Style", "Palatino Linotype", "Cormorant Garamond", Georgia, serif;
  --font-sans:  -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-mono:  ui-monospace, "JetBrains Mono", "SF Mono", Menlo, monospace;

  --max-w: 1180px;
  --pad: 1.5rem;
  --radius: 4px;
}

[data-theme="dark"] {
  --bg:        #14110c;
  --bg-elev:   #1d1914;
  --ink:       #ece5d2;
  --muted:     #9a917f;
  --rule:      #322c23;
  --accent:    #d97757;
  --good:      #7ec07f;
  --warn:      #e89060;
  --hover:     #25201a;
  --selected:  #2c2620;
}

* { box-sizing: border-box; }

html, body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .15s ease;
}
a:hover { border-bottom-color: var(--accent); }
a.muted { color: var(--muted); }

/* --- Topbar ---------------------------------------------------------------- */
.topbar {
  border-bottom: 1px solid var(--rule);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(4px);
}
.topbar-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1rem var(--pad);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
}
.masthead {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.6rem, 2.4vw, 2.1rem);
  letter-spacing: -0.01em;
  margin: 0;
  line-height: 1;
}
.masthead-sub {
  margin: .25rem 0 0;
  color: var(--muted);
  font-size: .85rem;
}
.topbar-controls { display: flex; gap: .5rem; }

.ghost-btn {
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--ink);
  padding: .35rem .65rem;
  border-radius: var(--radius);
  cursor: pointer;
  font: inherit;
  font-size: .9rem;
}
.ghost-btn:hover { background: var(--hover); }

/* --- Layout container ------------------------------------------------------ */
main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2rem var(--pad) 4rem;
}

/* --- Summary stats --------------------------------------------------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}
.stat {
  background: var(--bg-elev);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}
.stat-num {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}
.stat-label {
  color: var(--muted);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: .25rem;
}
@media (max-width: 720px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
}

/* --- Controls -------------------------------------------------------------- */
.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--bg-elev);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}
#search {
  flex: 1 1 240px;
  min-width: 200px;
  padding: .55rem .8rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--ink);
  font: inherit;
}
#search:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.pills {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  flex: 2 1 400px;
}
.pill {
  font-size: .78rem;
  padding: .25rem .65rem;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--muted);
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
  font-size: .78rem;
  transition: background .12s, color .12s, border-color .12s;
}
.pill:hover { background: var(--hover); }
.pill[aria-pressed="true"] {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}

.toggle {
  display: flex;
  align-items: center;
  gap: .35rem;
  font-size: .85rem;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}
.toggle input { accent-color: var(--accent); }

/* --- Catalog sections ------------------------------------------------------ */
.bucket {
  margin-top: 2.5rem;
}
.bucket-header {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  padding-bottom: .4rem;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 0;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.005em;
}
.bucket-count {
  font-family: var(--font-mono);
  color: var(--muted);
  font-size: .78rem;
  font-weight: 400;
}

table.catalog {
  width: 100%;
  border-collapse: collapse;
  font-size: .92rem;
}
table.catalog thead th {
  position: sticky;
  top: 64px;
  background: var(--bg);
  text-align: left;
  font-weight: 600;
  font-size: .72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  padding: .7rem .6rem .5rem;
  border-bottom: 1px solid var(--rule);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}
table.catalog thead th .sort-indicator {
  display: inline-block;
  width: 1em;
  color: var(--accent);
  opacity: 0;
}
table.catalog thead th[aria-sort="ascending"] .sort-indicator,
table.catalog thead th[aria-sort="descending"] .sort-indicator { opacity: 1; }

table.catalog tbody td {
  padding: .65rem .6rem;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

.row { cursor: pointer; }
.row:hover { background: var(--hover); }
.row.is-expanded { background: var(--selected); }
.row.is-expanded + .row-detail { background: var(--selected); }

.cell-name { width: 22%; }
.cell-target { width: 14%; }
.cell-price, .cell-mg, .cell-permg { width: 7%; text-align: right; }
.cell-dose { width: 11%; text-align: right; }
.cell-freq { width: 12%; color: var(--muted); font-family: var(--font-mono); font-size: .82rem; }
.cell-stock { width: 2.5rem; text-align: center; }

.cell-name .name-link {
  font-weight: 600;
  color: var(--ink);
}
.cell-name .name-link:hover { border-bottom-color: var(--ink); }

.expand-toggle {
  font-family: var(--font-mono);
  background: transparent;
  border: 0;
  color: var(--muted);
  cursor: pointer;
  padding: 0 .35rem 0 0;
  font-size: .85rem;
  transition: transform .15s;
}
.row.is-expanded .expand-toggle { transform: rotate(90deg); color: var(--accent); }

.target-chip {
  font-family: var(--font-mono);
  font-size: .78rem;
  padding: .12rem .5rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--muted);
  background: transparent;
  white-space: nowrap;
}

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .9rem;
}

.best-value-badge {
  margin-left: .5rem;
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .68rem;
  padding: .05rem .4rem;
  background: var(--good);
  color: var(--bg);
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  vertical-align: middle;
}

.stock-dot {
  display: inline-block;
  width: .55rem;
  height: .55rem;
  border-radius: 50%;
}
.stock-dot.in { background: var(--good); }
.stock-dot.out { background: var(--warn); }

.row-detail .detail-grid {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.25rem;
  padding: .5rem .5rem 1rem;
}
.detail-img img {
  width: 100%;
  height: auto;
  background: var(--bg);
  border-radius: var(--radius);
}
.detail-img.empty { display: none; }
.detail-desc {
  font-family: var(--font-serif);
  font-size: 1.02rem;
  line-height: 1.55;
  margin: 0 0 .8rem;
  color: var(--ink);
}
.detail-benefit {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: .95rem;
  color: var(--accent);
  border-left: 2px solid var(--accent);
  padding-left: .7rem;
  margin: 0 0 1rem;
  line-height: 1.4;
}
.detail-benefit:empty { display: none; }
.detail-meta {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: .15rem .9rem;
  font-size: .8rem;
  margin: 0;
}
.detail-meta dt {
  color: var(--muted);
  text-transform: uppercase;
  font-size: .68rem;
  letter-spacing: 0.06em;
  padding-top: .15rem;
}
.detail-meta dd { margin: 0; }
.meta-tiers { font-family: var(--font-mono); font-size: .82rem; }

/* --- Prose sections (stacks, methodology, glossary) ----------------------- */
.prose {
  margin-top: 4rem;
  max-width: 720px;
}
.prose h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  letter-spacing: -0.005em;
  border-bottom: 1px solid var(--rule);
  padding-bottom: .4rem;
  margin-bottom: 1.2rem;
}
.prose h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 1.3rem 0 .3rem;
}
.prose p { margin: .35rem 0 .85rem; }
.prose ul { padding-left: 1.1rem; }
.prose .disclaimer {
  color: var(--muted);
  font-size: .82rem;
  font-style: italic;
  border-left: 2px solid var(--rule);
  padding-left: .8rem;
}

/* --- Footer ---------------------------------------------------------------- */
.footer {
  max-width: var(--max-w);
  margin: 4rem auto 2rem;
  padding: 1.5rem var(--pad) 0;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: .8rem;
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  align-items: center;
}
.footer .sep { opacity: .5; }

/* --- Print stylesheet ------------------------------------------------------ */
@media print {
  .topbar, .controls, .stats, .footer, .expand-toggle, #theme-toggle { display: none !important; }
  main { padding: 0; }
  table.catalog thead th { position: static; }
  .row-detail { display: table-row !important; }
  .row-detail .detail-grid { grid-template-columns: 1fr; }
  .detail-img { display: none; }
}