/* CommerceWatch site shell — WS35
 * Bloomberg-terminal-adjacent data density, consumer-readable.
 * No marketing gradients. No oversize hero photos. No social-feed cards.
 * Per /opt/web_publisher/PASTE_SPEC.md §6 hard gate.
 */

:root {
  --bg: #fafaf7;
  --bg-elev: #ffffff;
  --ink: #16181d;
  --ink-soft: #4a4f57;
  --ink-faint: #7a8088;
  --accent: #0b6b3a;        /* CommerceWatch green — money/data adjacent */
  --accent-soft: #e6f0ea;
  --hairline: #d9d9d2;
  --neg: #a8201a;
  --pos: #0b6b3a;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "Roboto Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Roboto, "Helvetica Neue", Arial, sans-serif;
  --gutter: 1rem;
  --max: 1180px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}

/* Header --------------------------------------------------------------- */
.site-header {
  background: var(--bg-elev);
  border-bottom: 1px solid var(--hairline);
  padding: 0.75rem 0;
}
.site-header__inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.brand { text-decoration: none; color: var(--ink); }
.brand__mark {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 1px;
}
.site-nav ul {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  margin: 0; padding: 0;
}
.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
}
.site-nav a[aria-current="page"] {
  color: var(--ink);
  font-weight: 600;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 1px;
}
.site-search {
  margin-left: auto;
  display: flex;
  gap: 0.4rem;
}
.site-search input[type="search"] {
  font-family: var(--sans);
  font-size: 0.9rem;
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--hairline);
  border-radius: 3px;
  min-width: 200px;
  background: var(--bg);
  color: var(--ink);
}
.site-search button {
  font-family: var(--sans);
  font-size: 0.9rem;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  border-radius: 3px;
  cursor: pointer;
}

/* Main / sections ------------------------------------------------------- */
.site-main { padding: 2rem 0 4rem; }

.page-head { margin-bottom: 2rem; }
.page-head h1 {
  font-size: 1.85rem;
  margin: 0 0 0.4rem;
  font-weight: 700;
}
.page-head .lede { color: var(--ink-soft); margin: 0; }

/* Home hero ------------------------------------------------------------- */
.hero {
  background: var(--bg-elev);
  border: 1px solid var(--hairline);
  padding: 2.5rem 2rem;
  margin-bottom: 2.5rem;
}
.hero__title {
  font-family: var(--mono);
  font-size: 2.3rem;
  margin: 0 0 0.6rem;
  letter-spacing: -0.02em;
}
.hero__lede {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 60ch;
  margin: 0 0 1.5rem;
}
.hero__search {
  display: flex;
  gap: 0.5rem;
  max-width: 520px;
  margin-bottom: 1rem;
}
.hero__search input[type="search"] {
  flex: 1;
  padding: 0.6rem 0.8rem;
  font-size: 1rem;
  font-family: var(--sans);
  border: 1px solid var(--hairline);
  border-radius: 3px;
  background: var(--bg);
}
.hero__search button {
  padding: 0.6rem 1.2rem;
  font-size: 1rem;
  font-family: var(--sans);
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  border-radius: 3px;
  cursor: pointer;
}
.hero__caveat {
  font-size: 0.85rem;
  color: var(--ink-faint);
  margin: 0;
}

/* Category tiles -------------------------------------------------------- */
.cat-tile-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.75rem;
  list-style: none;
  margin: 0; padding: 0;
}
.cat-tile a {
  display: block;
  padding: 1rem;
  background: var(--bg-elev);
  border: 1px solid var(--hairline);
  text-decoration: none;
  color: var(--ink);
  transition: border-color 0.15s;
}
.cat-tile a:hover {
  border-color: var(--accent);
}
.cat-tile strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 0.25rem;
}
.cat-tile span {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--ink-faint);
}

/* Product list / cards -------------------------------------------------- */
.product-list {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.75rem;
}
.product-card a {
  display: block;
  padding: 1rem;
  background: var(--bg-elev);
  border: 1px solid var(--hairline);
  text-decoration: none;
  color: var(--ink);
  height: 100%;
  transition: border-color 0.15s;
}
.product-card a:hover {
  border-color: var(--accent);
}
.product-card__title {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.3rem;
}
.product-card__brand {
  color: var(--ink-soft);
  font-size: 0.85rem;
  margin: 0 0 0.6rem;
}
.product-card__price {
  font-family: var(--mono);
  font-size: 1.1rem;
  color: var(--accent);
  margin: 0 0 0.4rem;
  font-weight: 700;
}
.product-card__meta {
  font-size: 0.8rem;
  color: var(--ink-faint);
  margin: 0;
}

/* Product detail -------------------------------------------------------- */
.crumbs {
  font-size: 0.85rem;
  color: var(--ink-faint);
  margin: 0 0 0.5rem;
}
.product-detail__head h1 {
  font-size: 1.6rem;
  margin: 0 0 0.3rem;
}
.brand-line {
  color: var(--ink-soft);
  margin: 0 0 1.5rem;
}
.price-now {
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  padding: 1.5rem;
  margin-bottom: 2rem;
  display: flex;
  align-items: baseline;
  gap: 2rem;
  flex-wrap: wrap;
}
.price-now__amount {
  font-family: var(--mono);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--accent);
}
.price-now__meta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.price-history { margin-bottom: 2rem; }
.price-history h2 { font-size: 1.2rem; margin: 0 0 1rem; }
.price-history__chart {
  background: var(--bg-elev);
  border: 1px solid var(--hairline);
  padding: 1rem;
  min-height: 220px;
  margin-bottom: 1rem;
  position: relative;
}
.price-history__fallback {
  color: var(--ink-faint);
  font-size: 0.85rem;
  margin: 0;
}
.price-history__table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 0.9rem;
}
.price-history__table th,
.price-history__table td {
  text-align: left;
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--hairline);
}
.price-history__table th {
  background: var(--bg-elev);
  color: var(--ink-soft);
  font-weight: 600;
  font-family: var(--sans);
}

.product-meta dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.4rem 1rem;
  font-size: 0.9rem;
}
.product-meta dt {
  color: var(--ink-soft);
  font-weight: 600;
}
.product-meta dd { margin: 0; font-family: var(--mono); }

/* Category page --------------------------------------------------------- */
.category-head { margin-bottom: 1.5rem; }
.category-summary {
  color: var(--ink-soft);
  font-family: var(--mono);
  margin: 0;
}

/* Pricing tiers --------------------------------------------------------- */
.tier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}
.tier {
  background: var(--bg-elev);
  border: 1px solid var(--hairline);
  padding: 1.5rem;
}
.tier--pro { border-color: var(--accent); }
.tier h2 { margin: 0 0 0.5rem; font-size: 1.2rem; }
.tier__price {
  font-family: var(--mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  margin: 0 0 1rem;
}
.tier ul {
  margin: 0 0 1.5rem;
  padding: 0 0 0 1.1rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}
.tier__cta a {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px solid var(--accent);
  color: var(--accent);
  text-decoration: none;
}
.tier__cta--disabled {
  color: var(--ink-faint);
  font-size: 0.85rem;
}

.pricing-fineprint {
  border-top: 1px solid var(--hairline);
  padding-top: 1rem;
  color: var(--ink-faint);
  font-size: 0.85rem;
}

/* Footer ---------------------------------------------------------------- */
.site-footer {
  background: var(--bg-elev);
  border-top: 1px solid var(--hairline);
  padding: 2rem 0;
  margin-top: 4rem;
}
.site-footer__inner { display: grid; gap: 0.6rem; }
.footer-brand { margin: 0; color: var(--ink); }
.footer-links {
  list-style: none;
  display: flex;
  gap: 1.25rem;
  margin: 0; padding: 0;
}
.footer-links a { color: var(--ink-soft); text-decoration: none; }
.footer-fineprint {
  color: var(--ink-faint);
  font-size: 0.8rem;
  margin: 0;
}

/* Home sections --------------------------------------------------------- */
.home-categories, .home-featured, .home-methodology { margin-bottom: 2.5rem; }
.home-categories h2,
.home-featured h2,
.home-methodology h2,
.browse-categories h2,
.browse-all h2 {
  font-size: 1.2rem;
  margin: 0 0 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--hairline);
}
.home-methodology ol {
  padding-left: 1.2rem;
  color: var(--ink-soft);
}

.browse-search-stub {
  background: var(--bg-elev);
  border: 1px dashed var(--hairline);
  padding: 1rem;
  margin-top: 2rem;
  color: var(--ink-faint);
  font-size: 0.9rem;
}
.browse-search-stub h2 { font-size: 1rem; margin: 0 0 0.4rem; color: var(--ink-soft); }

/* Responsive ------------------------------------------------------------ */
@media (max-width: 640px) {
  .site-search { width: 100%; margin-left: 0; }
  .site-search input[type="search"] { flex: 1; min-width: 0; }
  .hero { padding: 1.5rem 1.25rem; }
  .hero__title { font-size: 1.6rem; }
  .price-now__amount { font-size: 1.8rem; }
}