/* Category-defining pages — shared styles
   Type-forward, restrained. Linear / Vercel docs / Stripe Press, not gradient hero soup.
   Brief §5.2: one type for headlines, one for body, mono for code/terminal accents.
   Three colors total: ink (near-black), accent (CTA/links), signal (audit/AI). */

:root {
  --cat-ink: #111827;
  --cat-ink-soft: #374151;
  --cat-muted: #6B7280;
  --cat-paper: #FFFFFF;
  --cat-tone: #F9FAFB;
  --cat-rule: #E5E7EB;
  --cat-accent: #2A9EC6;
  --cat-signal: #6366F1;
  --cat-max-w: 720px;
  --cat-max-w-wide: 1080px;
  --cat-border: #E5E7EB;
  
  /* Color styles */
  --accent-info: #2B9EC6;
  --bg-info: #F0FBFF;
  --alizarin--crimson: #EB3131;
  --apple: #3BAD49;
  --athens--gray: #E5E7EB;
  --athens--gray: #F3F4F6;
  --athens--gray: #F9FAFB;
  --beeswax: #FEF3C7;
  --black: #000000;
  --black-0: #000000;
  --black-70: #000000;
  --blue: #0000EE;
  --buttercup: #F6B60B;
  --buttercup: #F6B60B;
  --cornflower--blue: #6366F1;
  --curious--blue: #2B9EC6;
  --dodger--blue: #3B82F6;
  --ebony: #111827;
  --ebony--clay: #1F2937;
  --gallery: #E0E7FF;
  --governor--bay: #3730A3;
  --gray--chateau: #9CA3AF;
  --indigo: #5778C5;
  --korma: #92400E;
  --mine--shaft: #343434;
  --mischka: #D1D5DB;
  --oxford--blue: #374151;
  --pale--sky: #6B7280;
  --pattens--blue: #DBEAFE;
  --persian--blue: #1E40AF;
  --river--bed: #4B5563;
  --silver--chalice: #A7A6A6;
  --silver--chalice: #A7A6A6;
  --silver--chalice: #A7A6A6;
  --silver--chalice: #A7A6A6;
  --silver--chalice: #A7A6A6;
  --white: #FFFFFF;
  --white-80: #FFFFFF;
  --zumthor: #E0E7FF;
}

.category-page {
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--cat-ink);
  background-color: var(--cat-paper);
  /* Layer order: paper above polygons, content above both. */
  background-image:
    var(--category-page-paper-image, none),
    var(--category-page-polygons-image, none);
  background-position: center top, center top;
  background-repeat: repeat, no-repeat;
  background-size: auto, contain;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.category-page #header-navbar,
.category-page #header-navbar.header-navbar--scroll,
.category-page #header-navbar:hover {
  background-color: rgba(255, 255, 255, 0.96);
  background-image: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.category-page .container-prose {
  max-width: var(--cat-max-w);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.category-page .container-wide {
  max-width: var(--cat-max-w-wide);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.category-page h1 {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  line-height: 1.05;
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--cat-ink);
}

.category-page h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--cat-ink);
  margin-top: 3rem;
  margin-bottom: 1rem;
}

.category-page h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  line-height: 1.25;
  font-weight: 600;
  color: var(--cat-ink);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.category-page p {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--cat-ink-soft);
  margin-bottom: 1rem;
}

.category-page .lede {
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--cat-ink);
}

.category-page strong { color: var(--cat-ink); font-weight: 600; }
.category-page em { font-style: italic; }

.category-page .mono {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-feature-settings: 'liga' 0;
}

.category-page .hero {
  padding: 4rem 0 3rem;
  min-height: 18rem;
  border-bottom: 1px solid var(--cat-rule);
  background-color: var(--cat-tone);
  position: relative;
  overflow: hidden;
}

.category-page .hero .container-prose {
  position: relative;
  z-index: 1;
}

/* Hero background slideshow */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}

.hero-bg-slide.is-active {
  opacity: 1;
}

/* Per-theme image mapping */
[data-theme="a"] .hero-bg-1 { background-image: url('/assets/images/category/hero-bg/theme_a_position_1.webp'); }
[data-theme="a"] .hero-bg-2 { background-image: url('/assets/images/category/hero-bg/theme_a_position_2.webp'); }
[data-theme="a"] .hero-bg-3 { background-image: url('/assets/images/category/hero-bg/theme_a_position_3.webp'); }
[data-theme="a"] .hero-bg-4 { background-image: url('/assets/images/category/hero-bg/theme_a_position_4.webp'); }
[data-theme="a"] .hero-bg-5 { background-image: url('/assets/images/category/hero-bg/theme_a_position_5.webp'); }
[data-theme="a"] .hero-bg-6 { background-image: url('/assets/images/category/hero-bg/theme_a_position_6.webp'); }
[data-theme="a"] .hero-bg-7 { background-image: url('/assets/images/category/hero-bg/theme_a_position_7.webp'); }

[data-theme="b"] .hero-bg-1 { background-image: url('/assets/images/category/hero-bg/theme_b_position_1.webp'); }
[data-theme="b"] .hero-bg-2 { background-image: url('/assets/images/category/hero-bg/theme_b_position_2.webp'); }
[data-theme="b"] .hero-bg-3 { background-image: url('/assets/images/category/hero-bg/theme_b_position_3.webp'); }
[data-theme="b"] .hero-bg-4 { background-image: url('/assets/images/category/hero-bg/theme_b_position_4.webp'); }
[data-theme="b"] .hero-bg-5 { background-image: url('/assets/images/category/hero-bg/theme_b_position_5.webp'); }
[data-theme="b"] .hero-bg-6 { background-image: url('/assets/images/category/hero-bg/theme_b_position_6.webp'); }
[data-theme="b"] .hero-bg-7 { background-image: url('/assets/images/category/hero-bg/theme_b_position_7.webp'); }

[data-theme="c"] .hero-bg-1 { background-image: url('/assets/images/category/hero-bg/theme_c_position_1.webp'); }
[data-theme="c"] .hero-bg-2 { background-image: url('/assets/images/category/hero-bg/theme_c_position_2.webp'); }
[data-theme="c"] .hero-bg-3 { background-image: url('/assets/images/category/hero-bg/theme_c_position_3.webp'); }
[data-theme="c"] .hero-bg-4 { background-image: url('/assets/images/category/hero-bg/theme_c_position_4.webp'); }
[data-theme="c"] .hero-bg-5 { background-image: url('/assets/images/category/hero-bg/theme_c_position_5.webp'); }
[data-theme="c"] .hero-bg-6 { background-image: url('/assets/images/category/hero-bg/theme_c_position_6.webp'); }
[data-theme="c"] .hero-bg-7 { background-image: url('/assets/images/category/hero-bg/theme_c_position_7.webp'); }

[data-theme="d"] .hero-bg-1 { background-image: url('/assets/images/category/hero-bg/theme_d_position_1.webp'); }
[data-theme="d"] .hero-bg-2 { background-image: url('/assets/images/category/hero-bg/theme_d_position_2.webp'); }
[data-theme="d"] .hero-bg-3 { background-image: url('/assets/images/category/hero-bg/theme_d_position_3.webp'); }
[data-theme="d"] .hero-bg-4 { background-image: url('/assets/images/category/hero-bg/theme_d_position_4.webp'); }
[data-theme="d"] .hero-bg-5 { background-image: url('/assets/images/category/hero-bg/theme_d_position_5.webp'); }
[data-theme="d"] .hero-bg-6 { background-image: url('/assets/images/category/hero-bg/theme_d_position_6.webp'); }
[data-theme="d"] .hero-bg-7 { background-image: url('/assets/images/category/hero-bg/theme_d_position_7.webp'); }

[data-theme="e"] .hero-bg-1 { background-image: url('/assets/images/category/hero-bg/theme_e_position_1.webp'); }
[data-theme="e"] .hero-bg-2 { background-image: url('/assets/images/category/hero-bg/theme_e_position_2.webp'); }
[data-theme="e"] .hero-bg-3 { background-image: url('/assets/images/category/hero-bg/theme_e_position_3.webp'); }
[data-theme="e"] .hero-bg-4 { background-image: url('/assets/images/category/hero-bg/theme_e_position_4.webp'); }
[data-theme="e"] .hero-bg-5 { background-image: url('/assets/images/category/hero-bg/theme_e_position_5.webp'); }
[data-theme="e"] .hero-bg-6 { background-image: url('/assets/images/category/hero-bg/theme_e_position_6.webp'); }
[data-theme="e"] .hero-bg-7 { background-image: url('/assets/images/category/hero-bg/theme_e_position_7.webp'); }

.category-page .section {
  padding: 3rem 0;
  border-bottom: 1px solid var(--cat-rule);
}

.category-page .section:last-of-type { border-bottom: none; }

.category-page a:not(.dropdown-item):not(.nav-item):not(.nav-dropdown-menu-item):not(.btn) {
  color: var(--cat-ink);
  text-decoration: underline;
  text-decoration-color: var(--cat-rule);
  text-underline-offset: 0.25em;
  transition: text-decoration-color 0.15s ease;
}
.category-page a:not(.dropdown-item):not(.nav-item):not(.nav-dropdown-menu-item):not(.btn):hover {
  text-decoration-color: var(--cat-ink);
}

.category-page code, .category-page pre {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
  background-color: var(--cat-tone);
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
  border: 1px solid var(--cat-rule);
}

.category-page pre {
  font-size: 1rem;
  line-height: 1.6;
  padding: 4px 12px;
  margin: 0.5rem 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.category-page pre code {
  background: transparent;
  border: none;
  padding: 0;
  color: inherit;
}

/* block quote */
.blockquote {
  padding: 16px;
}

.blockquote .subtitle {
  font-size: 0.8rem;
  text-transform: uppercase;
}

.blockquote .description {
  font-size: 1rem;
}

.blockquote.info {
  background-color: var(--bg-info);
  border-left: 5px solid var(--accent-info);
  border-top-left-radius: 8px;
  border-bottom-left-radius: 8px;
}

.harness-properties-grid-container {
  display: flex;
  justify-content: center;
  width: 100%;
}

.harness-properties-grid {
  display: grid;
  grid-template-columns: minmax(0, 324px);
  justify-content: center;
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.harness-property-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 324px;
  padding: 1rem 1rem 1.25rem;
  border: 1px solid var(--cat-rule);
  border-radius: 0.875rem;
  background: rgba(255, 255, 255, 0.84);
  backdrop-filter: blur(8px);
  box-shadow: 0 1px 2px rgba(17, 24, 39, 0.04);
}

.harness-property-number {
  font-size: 1.25rem;
  line-height: 1;
  color: var(--pale--sky);
  margin-bottom: 1.5rem;
}

.rfp-property-card {
  display: flex;
  flex-direction: row;
  gap: 1rem;
  width: 100%;
}

.rfp-property-number {
  font-size: 1em;
  padding-top: 0.33em;
  margin-bottom: 0;
}

.category-page .harness-property-title {
  font-size: 1.5rem;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-top: 0;
  margin-bottom: 0.9rem;
}

.category-page .harness-property-body {
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--cat-ink-soft);
  margin-bottom: 0;
}

.category-page .harness-property-body code {
  font-size: 0.85em;
}

.three-clocks-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border: 1px solid var(--cat-border);
  background: rgba(255, 255, 255, 0.38);
}

.three-clock-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 30.5rem;
  border-bottom: 1px solid var(--cat-border);
  background: var(--white);
}

.three-clock-card:last-child {
  border-bottom: none;
}

.three-clock-card__icon {
  position: absolute;
  top: -35%;
  right: 0.75rem;
  width: 200px;
  height: 100%;
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}

.three-clock-card__header {
  position: relative;
  z-index: 2;
  width: 100%;
  margin: 6.75rem auto 0;
  width: fit-content;
}

.category-page .three-clock-card__title {
  font-size: clamp(1.45rem, 2.2vw, 1.9rem);
  line-height: 1;
  letter-spacing: -0.03em;
}

.three-clock-card__tempo {
  font-size: 0.95rem;
  line-height: 1.4;
  color: var(--cat-muted);
  margin-bottom: 0.9rem;
}

.three-clock-card__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 0 1.4rem 1rem;
}

.category-page .three-clock-card__body {
  font-size: 1.125rem;
  color: var(--cat-ink-soft);
  margin-bottom: 0;
}

@media (min-width: 768px) {
  .harness-properties-grid {
    grid-template-columns: repeat(2, 324px);
    gap: 1.25rem;
  }

  .harness-property-card {
    padding: 1.15rem 1.15rem 1.35rem;
  }

  .three-clocks-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .three-clock-card {
    min-height: 30.5rem;
    border-bottom: none;
    border-right: 1px solid var(--cat-border);
  }

  .three-clock-card:last-child {
    border-right: none;
  }

  .three-clock-card__icon {
    width: 180px;
    top: -35%;
  }

  .three-clock-card__inner {
    padding: 0 1.35rem 1rem;
  }
}

/* dark mode */
@media (prefers-color-scheme: dark) {
  .category-page.respect-prefers-dark {
    --cat-ink: #F9FAFB;
    --cat-ink-soft: #D1D5DB;
    --cat-muted: #9CA3AF;
    --cat-paper: #0F172A;
    --cat-tone: #1F2937;
    --cat-rule: #374151;
  }
}

/* utility — sr-only */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}