@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=IBM+Plex+Mono:wght@400;500;600&display=swap");

:root {
  --bg: #f3f6f4;
  --surface: #ffffff;
  --soft-surface: #f8fafc;
  --border: #d9e2ec;
  --text: #102a43;
  --muted: #475569;
  --pipeline: #1f6f8b;
  --success: #5c7a52;
  --warning: #f2b84b;
  --accent: #f47c57;
  --danger: #be123c;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --shadow: 0 16px 40px rgba(16, 42, 67, 0.06);
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;
  --ui: "Inter", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background:
    radial-gradient(circle at top left, rgba(31, 111, 139, 0.05), transparent 30%),
    linear-gradient(180deg, #f5f7f5, var(--bg));
}

body {
  margin: 0;
  font-family: var(--ui);
  color: var(--text);
  background:
    linear-gradient(rgba(16, 42, 67, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 42, 67, 0.02) 1px, transparent 1px),
    var(--bg);
  background-size: 26px 26px, 26px 26px, auto;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

#shell,
#page {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0 18px;
}

.brand-block {
  display: grid;
  gap: 6px;
}

.brand-mark {
  display: inline-grid;
  gap: 2px;
}

.brand-name {
  font-size: 1.08rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand-sub,
.brand-copy,
.eyebrow,
.meta,
.tag,
.pill,
.footnote,
.preview-kicker,
.filter-pill,
.searchbar input,
.searchbar button {
  font-family: var(--mono);
}

.brand-sub,
.brand-copy {
  color: var(--muted);
  font-size: 0.82rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.nav-link,
.filter-pill {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.58);
  color: var(--muted);
  transition:
    border-color 120ms ease,
    background 120ms ease,
    color 120ms ease,
    transform 120ms ease;
}

.nav-link:hover,
.filter-pill:hover {
  transform: translateY(-1px);
  border-color: var(--border);
  color: var(--text);
}

.nav-link.is-active,
.filter-pill.is-active {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
}

.footer {
  margin-top: 8px;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-end;
}

.footer-line {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.footer-sub {
  margin-top: 6px;
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: flex-end;
}

.page-frame {
  padding: 12px 0 56px;
  display: grid;
  gap: 20px;
  animation: rise 320ms ease both;
}

@keyframes rise {
  from {
    transform: translateY(10px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.grid-two {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: 20px;
}

.card,
.product-card,
.catalog-hero {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.card,
.catalog-hero {
  padding: 24px;
}

.hero-copy h1,
.catalog-hero h1,
.detail-head h1,
.prose h1 {
  font-size: clamp(2.1rem, 4vw, 3.8rem);
  line-height: 0.98;
  margin: 10px 0 14px;
  letter-spacing: -0.04em;
}

.hero-copy p,
.catalog-hero p,
.prose p,
.detail-side p,
.card-body p,
.brand-copy {
  font-size: 1rem;
  line-height: 1.6;
}

.eyebrow {
  color: var(--pipeline);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.trust-strip span {
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--soft-surface);
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--muted);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--border);
  transition:
    transform 120ms ease,
    background 120ms ease,
    border-color 120ms ease;
}

.button:hover,
.text-link:hover {
  transform: translateY(-1px);
}

.button-dark {
  background: var(--text);
  color: #fff;
  border-color: var(--text);
}

.button-light {
  background: var(--soft-surface);
}

.summary {
  display: grid;
  gap: 12px;
}

.summary-stack {
  display: grid;
  gap: 12px;
  margin-top: 6px;
}

.summary-item {
  display: grid;
  gap: 4px;
}

.summary-item strong {
  font-size: 1rem;
}

.summary-item span {
  color: var(--muted);
  line-height: 1.5;
}

.ledger-row,
.meta-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(217, 226, 236, 0.75);
}

.ledger-row:last-child,
.meta-row:last-child {
  border-bottom: 0;
}

.ledger-row span,
.ledger-row strong,
.meta,
.footnote,
.muted,
.card-foot {
  font-size: 0.88rem;
}

.ledger-row span,
.muted {
  color: var(--muted);
}

.section,
.page-stack {
  display: grid;
  gap: 16px;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
}

.section-head h2,
.card-slab h2,
.detail-side h2,
.prose h2 {
  margin: 8px 0 0;
  font-size: 1.4rem;
}

.stack {
  display: grid;
  gap: 14px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.product-card {
  overflow: hidden;
}

.card-link {
  display: grid;
  gap: 0;
}

.preview {
  min-height: 164px;
  display: grid;
  align-items: end;
  padding: 18px;
  border-bottom: 1px solid var(--border);
  background: var(--soft-surface);
}

.preview-line {
  width: 54px;
  height: 6px;
  border-radius: 999px;
  background: var(--pipeline);
  margin-bottom: 18px;
}

.preview-copy {
  display: grid;
  gap: 6px;
  max-width: 32ch;
}

.preview-copy strong {
  font-size: 1.05rem;
  line-height: 1.25;
}

.preview-copy span {
  color: var(--muted);
  font-size: 0.88rem;
}

.preview-kicker {
  color: var(--pipeline);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.preview-success .preview-line {
  background: var(--success);
}

.preview-warning .preview-line {
  background: var(--warning);
}

.preview-accent .preview-line {
  background: var(--accent);
}

.card-body {
  padding: 18px 20px 16px;
}

.card-top {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.card-top h2 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

.card-top p {
  margin: 0;
  color: var(--muted);
}

.pill {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  background: rgba(31, 111, 139, 0.09);
  color: var(--pipeline);
  white-space: nowrap;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: #f8fafc;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.72rem;
}

.card-foot {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 0 20px 18px;
}

.card-actions {
  padding: 0 20px 20px;
}

.text-link {
  color: var(--pipeline);
}

.searchbar {
  display: flex;
  gap: 10px;
}

.searchbar input,
.searchbar button {
  height: 46px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.searchbar input {
  min-width: 260px;
  padding: 0 16px;
  outline: none;
  color: var(--text);
}

.searchbar button {
  padding: 0 16px;
  cursor: pointer;
  background: var(--text);
  color: #fff;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.catalog-hero {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
}

.product-detail {
  align-items: start;
}

.detail-main,
.detail-side,
.prose {
  display: grid;
  gap: 18px;
}

.detail-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.detail-preview {
  border-radius: var(--radius-md);
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.detail-list {
  margin: 10px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.detail-kv {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(217, 226, 236, 0.75);
}

.detail-kv:last-child {
  border-bottom: 0;
}

.detail-kv span {
  color: var(--muted);
}

.method-card {
  background:
    linear-gradient(180deg, rgba(31, 111, 139, 0.04), rgba(244, 124, 87, 0.03)),
    var(--surface);
}

.method-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 14px 0 10px;
  align-items: center;
}

.flow-step,
.flow-arrow {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--soft-surface);
  font-family: var(--mono);
  font-size: 0.76rem;
}

.flow-step {
  color: var(--text);
}

.flow-arrow {
  color: var(--muted);
}

.card-slab,
.side-box {
  padding-top: 4px;
  border-top: 1px solid var(--border);
}

.ledger-grid {
  display: grid;
  gap: 0;
  margin-top: 8px;
}

.detail-side {
  position: sticky;
  top: 18px;
}

.prose h3 {
  margin: 10px 0 6px;
  font-size: 1rem;
}

.noscript {
  width: min(1120px, calc(100% - 32px));
  margin: 20px auto 0;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
}

@media (max-width: 900px) {
  .shell,
  .grid-two,
  .detail-head,
  .card-top,
  .section-head,
  .catalog-hero,
  .footer-grid {
    grid-template-columns: 1fr;
    display: grid;
  }

  .shell {
    justify-content: start;
  }

  .nav {
    justify-content: start;
  }

  .detail-side {
    position: static;
  }

  .product-grid,
  .preview-grid {
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-content: start;
  }
}

@media (max-width: 640px) {
  #shell,
  #page {
    width: min(100% - 20px, 1120px);
  }

  .card,
  .catalog-hero {
    padding: 18px;
  }

  .searchbar {
    flex-direction: column;
  }

  .searchbar input {
    min-width: 0;
    width: 100%;
  }

  .card-foot,
  .meta-row,
  .ledger-row {
    flex-direction: column;
    align-items: start;
  }

  .hero-copy h1,
  .catalog-hero h1,
  .detail-head h1,
  .prose h1 {
    font-size: 2.2rem;
  }

  .trust-strip {
    gap: 8px;
  }
}