/* ==========================================================================
   BIZSPACES - Pillar page (vitrine vs e-commerce)
   --------------------------------------------------------------------------
   Heritage of styles.css. Adds pillar-specific tokens, layout primitives,
   and motion. All animations respect prefers-reduced-motion.

   Hallmark disciplines applied:
   - Locked tokens only (--pillar-* prefix), no mid-render improvisation
   - Display headers are roman (font-style: normal), emphasis by weight + accent
   - Mobile: 320 / 375 / 414 / 768 verified in QA
   - Reduced motion respected (motion tokens disabled, transitions compressed)
   - 8 interaction states on every button (.btn--*, .pill-cta, .toggle-*)
   - Hallmark pre-emit stamp at top
   ========================================================================== */

/* Hallmark · pillar · genre: editorial · theme: ink-paper
 * paper band: dark (L<30%) · display: high-contrast-serif (Fraunces)
 * accent hue: warm (gold #C9A961)
 * states: default · hover · focus-visible · active · disabled · loading · error · success
 */

:root {
  /* Pillar-specific tokens (additive, never override the root palette) */
  --pillar-bg:         var(--c-bg);
  --pillar-bg-elevated:var(--c-bg-elevated);
  --pillar-paper:      #f4ede0;     /* warm paper, for editorial contrast blocks */
  --pillar-paper-ink:  #1a1714;     /* ink on paper */
  --pillar-accent:     #c9a961;     /* gold accent (premium) */
  --pillar-accent-hot: #d8b870;     /* gold on hover */
  --pillar-rule:       rgba(201, 169, 97, 0.45);
  --pillar-rule-hair:  rgba(255, 255, 255, 0.18);
  --pillar-rule-paper: rgba(26, 23, 20, 0.16);

  /* Motion tokens (motion-ui compatible; CSS only here, no React) */
  --motion-dur-fast:   180ms;
  --motion-dur-normal: 320ms;
  --motion-dur-slow:   600ms;
  --motion-ease:       cubic-bezier(0.22, 1, 0.36, 1);
  --motion-ease-snap:  cubic-bezier(0.4, 0, 0.2, 1);
  --motion-distance:   16px;
}

/* ==========================================================================
   0. HEADER + FOOTER OVERRIDES (compact premium shell)
   --------------------------------------------------------------------------
   Override cities.css defaults for the pillar. Slim header (single row,
   ~64px) + tight footer so they don't dominate the pillar's content.
   ========================================================================== */

.pillar ~ header.city-header,
.pillar + * + header.city-header,
body > header.city-header {
  min-height: 0;
}

.pillar-page header.city-header {
  min-height: 64px;
}

.pillar-page header.city-header .city-nav {
  min-height: 64px;
  padding: 12px var(--pad-x);
  flex-wrap: nowrap;
  gap: 1.5rem;
}

.pillar-page header.city-header .city-brand img {
  width: 40px;
  height: 40px;
}

.pillar-page footer.footer {
  padding: 2.5rem 0 1.25rem;
}

.pillar-page footer.footer .footer__inner {
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.pillar-page footer.footer .footer__brand img,
.pillar-page footer.footer .footer__brand .bz-logo {
  width: 44px;
  height: 44px;
}

@media (max-width: 768px) {
  .pillar-page footer.footer .footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 480px) {
  .pillar-page footer.footer .footer__inner {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
}

.pillar-page footer.footer .footer__brand p {
  font-size: 0.92rem;
  line-height: 1.5;
  max-width: 32ch;
  margin: 0.85rem 0 0.6rem;
}

.pillar-page footer.footer .footer__brand address {
  font-size: 0.85rem;
  font-style: normal;
  opacity: 0.7;
}

.pillar-page footer.footer .footer__col h4 {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  color: var(--pillar-accent);
}

.pillar-page footer.footer .footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.pillar-page footer.footer .footer__col a {
  font-size: 0.92rem;
  opacity: 0.85;
  transition: opacity var(--motion-dur-fast) var(--motion-ease),
              color var(--motion-dur-fast) var(--motion-ease);
}

.pillar-page footer.footer .footer__col a:hover,
.pillar-page footer.footer .footer__col a:focus-visible {
  opacity: 1;
  color: var(--pillar-accent);
  outline: none;
}

.pillar-page footer.footer .footer__legal {
  border-top: 1px solid var(--pillar-rule-hair);
  padding-top: 1rem;
  font-size: 0.82rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  opacity: 0.7;
}

.pillar-page footer.footer .footer__legal-links {
  display: flex;
  gap: 1.25rem;
}

.pillar-page footer.footer .footer__legal-links a {
  color: inherit;
  transition: color var(--motion-dur-fast) var(--motion-ease);
}

.pillar-page footer.footer .footer__legal-links a:hover {
  color: var(--pillar-accent);
}

.pillar {
  --pad-x: clamp(1.25rem, 4vw, 3rem);
  position: relative;
  isolation: isolate;
  overflow-x: clip;
}

.pillar > section {
  padding: clamp(4rem, 8vw, 7rem) var(--pad-x);
  position: relative;
}

.pillar > section + section {
  border-top: 1px solid var(--pillar-rule-hair);
}

/* Decorative section index bar: a thin gold accent strip at the left edge of
   each section, visible on hover. Adds editorial depth without visual noise. */
.pillar > section::before {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(3rem, 6vw, 5rem);
  width: 2px;
  height: clamp(3rem, 6vw, 5rem);
  background: linear-gradient(180deg, var(--pillar-accent), transparent);
  opacity: 0;
  transition: opacity var(--motion-dur-slow) var(--motion-ease);
}

.pillar > section:hover::before {
  opacity: 1;
}

/* Section header: tighter grouping of eyebrow + title + lede, more visual weight */
.pillar-section-header {
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  max-width: 64ch;
}

/* Paper-flipped section: a contrast block that flips to warm paper + dark ink
   to break the rhythm of the dark editorial pages. */
.pillar-paper {
  background: var(--pillar-paper);
  color: var(--pillar-paper-ink);
  margin-inline: calc(var(--pad-x) * -1);
  padding-inline: var(--pad-x);
}

.pillar-paper h2,
.pillar-paper h3,
.pillar-paper p,
.pillar-paper li,
.pillar-paper td,
.pillar-paper th {
  color: var(--pillar-paper-ink);
}

.pillar-paper a {
  color: var(--pillar-paper-ink);
  text-decoration-color: var(--pillar-accent);
  text-underline-offset: 4px;
}

/* ==========================================================================
   2. HERO (typographic statement, Specimen-leaning)
   ========================================================================== */

.pillar-hero {
  padding-block: clamp(5rem, 11vw, 9rem) clamp(3rem, 6vw, 5rem);
}

.pillar-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--pillar-accent);
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.pillar-hero__eyebrow::before {
  content: "";
  width: 2.25rem;
  height: 1px;
  background: currentColor;
}

.pillar-hero__title {
  font-family: "Fraunces", serif;
  font-weight: 400;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  font-size: clamp(2.6rem, 7.5vw, 6.2rem);
  line-height: 0.94;
  letter-spacing: -0.025em;
  color: var(--c-fg);
  max-width: 18ch;
  margin: 0;
}

.pillar-hero__title em {
  font-style: normal;
  font-weight: 500;
  color: var(--pillar-accent);
  text-decoration: underline;
  text-decoration-color: var(--pillar-rule);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.12em;
}

.pillar-hero__lede {
  font-family: "Fraunces", serif;
  font-weight: 300;
  font-variation-settings: "opsz" 36;
  font-size: clamp(1.15rem, 1.6vw, 1.45rem);
  line-height: 1.5;
  color: var(--c-fg-soft);
  max-width: 52ch;
  margin-top: clamp(1.5rem, 3vw, 2.5rem);
}

.pillar-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--pillar-rule-hair);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--c-fg-muted);
}

.pillar-hero__meta dt {
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-fg-dim);
  margin-bottom: 0.4rem;
}

.pillar-hero__meta dd {
  margin: 0;
  color: var(--c-fg-soft);
}

.pillar-hero__meta dd strong {
  color: var(--pillar-accent);
  font-weight: 500;
}

/* ==========================================================================
   3. VS COMPARISON (signature block, premium cards)
   ========================================================================== */

.pillar-vs {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: clamp(1.5rem, 3vw, 3rem);
  align-items: stretch;
}

@media (max-width: 768px) {
  .pillar-vs {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .pillar-vs__sep {
    display: none;
  }
}

.pillar-vs__col {
  position: relative;
  padding: clamp(2rem, 4vw, 3rem);
  border: 1px solid var(--pillar-rule-hair);
  border-radius: 6px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.025), transparent 30%),
    var(--pillar-bg-elevated);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  min-width: 0;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.04) inset,
    0 24px 48px -24px rgba(0, 0, 0, 0.5);
  transition:
    border-color var(--motion-dur-normal) var(--motion-ease),
    transform var(--motion-dur-normal) var(--motion-ease),
    box-shadow var(--motion-dur-normal) var(--motion-ease);
}

.pillar-vs__col:hover {
  border-color: var(--pillar-rule);
  transform: translateY(-4px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.06) inset,
    0 32px 64px -28px rgba(0, 0, 0, 0.7),
    0 0 0 1px var(--pillar-rule);
}

.pillar-vs__col--featured {
  border-color: var(--pillar-rule);
  background:
    linear-gradient(180deg, rgba(201, 169, 97, 0.08), transparent 50%),
    radial-gradient(ellipse at top right, rgba(201, 169, 97, 0.06), transparent 60%),
    var(--pillar-bg-elevated);
  box-shadow:
    0 1px 0 rgba(201, 169, 97, 0.2) inset,
    0 32px 64px -28px rgba(201, 169, 97, 0.15),
    0 0 0 1px var(--pillar-rule);
}

.pillar-vs__col--featured:hover {
  border-color: var(--pillar-accent);
  box-shadow:
    0 1px 0 rgba(201, 169, 97, 0.35) inset,
    0 40px 80px -32px rgba(201, 169, 97, 0.25),
    0 0 0 1px var(--pillar-accent);
}

.pillar-vs__label {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: 0.5rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.66rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--pillar-accent);
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--pillar-rule);
  border-radius: 999px;
  background: rgba(201, 169, 97, 0.04);
}

.pillar-vs__col--featured .pillar-vs__label {
  color: #0a0a0a;
  background: var(--pillar-accent);
  border-color: var(--pillar-accent);
}

.pillar-vs__name {
  font-family: "Fraunces", serif;
  font-weight: 400;
  font-size: clamp(1.7rem, 2.8vw, 2.3rem);
  line-height: 1.05;
  letter-spacing: -0.018em;
  color: var(--c-fg);
  margin: 0;
}

.pillar-vs__tagline {
  font-size: 0.98rem;
  color: var(--c-fg-soft);
  line-height: 1.55;
}

.pillar-vs__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 1.25rem;
  margin-top: auto;
  padding-top: 1.25rem;
  border-top: 1px solid var(--pillar-rule-hair);
}

.pillar-vs__stat-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-fg-dim);
  margin-bottom: 0.35rem;
}

.pillar-vs__stat-value {
  font-family: "Fraunces", serif;
  font-weight: 400;
  font-size: 1.15rem;
  color: var(--c-fg);
}

.pillar-vs__sep {
  align-self: center;
  font-family: "Fraunces", serif;
  font-style: normal;
  font-weight: 300;
  font-size: 2.5rem;
  color: var(--pillar-accent);
  padding: 0 0.5rem;
  user-select: none;
}

/* ==========================================================================
   4. FACTORS (4 premium cards, paper-flipped, no numbers)
   ========================================================================== */

.pillar-factors {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
  gap: clamp(1rem, 2vw, 1.5rem);
}

.pillar-factors__item {
  padding: clamp(1.75rem, 3vw, 2.5rem);
  border: 1px solid var(--pillar-rule-paper);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(2px);
  position: relative;
  overflow: hidden;
  transition:
    transform var(--motion-dur-normal) var(--motion-ease),
    border-color var(--motion-dur-normal) var(--motion-ease),
    background-color var(--motion-dur-normal) var(--motion-ease);
}

.pillar-factors__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 3px;
  background: var(--pillar-accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--motion-dur-normal) var(--motion-ease);
}

.pillar-factors__item:hover {
  transform: translateY(-4px);
  border-color: var(--pillar-paper-ink);
  background-color: rgba(255, 255, 255, 0.6);
}

.pillar-factors__item:hover::before {
  transform: scaleY(1);
}

.pillar-factors__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 6px;
  background: var(--pillar-paper-ink);
  color: var(--pillar-paper);
  margin-bottom: 1.25rem;
  transition: transform var(--motion-dur-normal) var(--motion-ease);
}

.pillar-factors__item:hover .pillar-factors__icon {
  transform: rotate(-4deg) scale(1.06);
}

.pillar-factors__title {
  font-family: "Fraunces", serif;
  font-weight: 400;
  font-size: 1.3rem;
  line-height: 1.2;
  color: var(--pillar-paper-ink);
  margin: 0 0 0.7rem;
}

.pillar-factors__body {
  font-size: 0.95rem;
  line-height: 1.6;
  color: rgba(26, 23, 20, 0.72);
  margin: 0;
}

/* ==========================================================================
   5. SECTION HEADER (numbered, monospace eyebrow + serif h2)
   ========================================================================== */

.pillar-section__eyebrow {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--pillar-accent);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.pillar-section__eyebrow::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--pillar-rule-hair);
}

.pillar-section__title {
  font-family: "Fraunces", serif;
  font-weight: 400;
  font-variation-settings: "opsz" 72;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--c-fg);
  max-width: 22ch;
  margin: 0 0 1.25rem;
}

.pillar-paper .pillar-section__title {
  color: var(--pillar-paper-ink);
}

.pillar-section__lede {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  line-height: 1.55;
  color: var(--c-fg-muted);
  max-width: 58ch;
  margin: 0 0 clamp(2rem, 4vw, 3rem);
}

.pillar-paper .pillar-section__lede {
  color: rgba(26, 23, 20, 0.72);
}

/* ==========================================================================
   6. ARTICLE LINKS (premium cards, glow on hover)
   ========================================================================== */

.pillar-articles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 19rem), 1fr));
  gap: clamp(1rem, 2vw, 1.5rem);
}

.pillar-article-card {
  display: flex;
  flex-direction: column;
  padding: clamp(2rem, 3.5vw, 2.75rem);
  border: 1px solid var(--pillar-rule-hair);
  border-radius: 6px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 40%),
    var(--pillar-bg-elevated);
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
  min-width: 0;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.04) inset,
    0 16px 32px -16px rgba(0, 0, 0, 0.5);
  transition:
    border-color var(--motion-dur-normal) var(--motion-ease),
    transform var(--motion-dur-normal) var(--motion-ease),
    box-shadow var(--motion-dur-normal) var(--motion-ease);
}

.pillar-article-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(201, 169, 97, 0.06),
    transparent 40%
  );
  opacity: 0;
  transition: opacity var(--motion-dur-normal) var(--motion-ease);
  pointer-events: none;
}

.pillar-article-card:hover,
.pillar-article-card:focus-visible {
  border-color: var(--pillar-accent);
  transform: translateY(-6px);
  outline: none;
  box-shadow:
    0 1px 0 rgba(201, 169, 97, 0.25) inset,
    0 28px 56px -24px rgba(201, 169, 97, 0.18),
    0 0 0 1px var(--pillar-rule);
}

.pillar-article-card:hover::before {
  opacity: 1;
}

.pillar-article-card::after {
  content: "→";
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-family: "Fraunces", serif;
  font-size: 1.5rem;
  color: var(--pillar-accent);
  opacity: 0;
  transform: translateX(-8px);
  transition:
    opacity var(--motion-dur-normal) var(--motion-ease),
    transform var(--motion-dur-normal) var(--motion-ease);
}

.pillar-article-card:hover::after,
.pillar-article-card:focus-visible::after {
  opacity: 1;
  transform: translateX(0);
}

.pillar-article-card__cluster {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  align-self: flex-start;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--pillar-accent);
  margin-bottom: 1.25rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--pillar-rule);
  border-radius: 999px;
  background: rgba(201, 169, 97, 0.04);
}

.pillar-article-card__cluster::before {
  content: "→";
  font-family: "Fraunces", serif;
  font-size: 0.85rem;
  letter-spacing: 0;
}

.pillar-article-card__title {
  font-family: "Fraunces", serif;
  font-weight: 400;
  font-size: 1.35rem;
  line-height: 1.2;
  color: var(--c-fg);
  margin: 0 0 0.85rem;
}

.pillar-article-card__desc {
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--c-fg-muted);
  margin: 0;
}

/* ==========================================================================
   7. FAQ (accordion, premium dark with gold accents)
   ========================================================================== */

.pillar-faq {
  border-top: 1px solid var(--pillar-rule-hair);
}

.pillar-faq details {
  border-bottom: 1px solid var(--pillar-rule-hair);
  padding: 1.5rem 0;
  position: relative;
  transition: background-color var(--motion-dur-normal) var(--motion-ease);
}

.pillar-faq details::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 3px;
  height: 0;
  background: var(--pillar-accent);
  transform: translateY(-50%);
  transition: height var(--motion-dur-normal) var(--motion-ease);
}

.pillar-faq details:hover::before,
.pillar-faq details[open]::before {
  height: 60%;
}

.pillar-faq summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  list-style: none;
  font-family: "Fraunces", serif;
  font-weight: 400;
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
  line-height: 1.3;
  color: var(--c-fg);
  padding: 0.25rem 2.5rem 0.25rem 1.25rem;
  transition: color var(--motion-dur-fast) var(--motion-ease);
}

.pillar-faq summary::-webkit-details-marker {
  display: none;
}

.pillar-faq summary:hover,
.pillar-faq summary:focus-visible,
.pillar-faq details[open] summary {
  color: var(--pillar-accent);
  outline: none;
}

.pillar-faq summary::after {
  content: "+";
  font-family: "JetBrains Mono", monospace;
  font-weight: 300;
  font-size: 1.6rem;
  color: var(--pillar-accent);
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--pillar-rule);
  border-radius: 999px;
  text-align: center;
  transition: transform var(--motion-dur-normal) var(--motion-ease),
              background-color var(--motion-dur-normal) var(--motion-ease);
}

.pillar-faq details[open] summary::after {
  transform: rotate(45deg);
  background: var(--pillar-accent);
  color: #0a0a0a;
  border-color: var(--pillar-accent);
}

.pillar-faq__body {
  margin-top: 1rem;
  padding: 1.25rem 2.5rem 0.5rem 1.25rem;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--c-fg-soft);
  max-width: 62ch;
  animation: pillar-faq-in var(--motion-dur-slow) var(--motion-ease);
}

@keyframes pillar-faq-in {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .pillar-faq__body {
    animation: none;
  }
}

/* ==========================================================================
   8. CTA BLOCK (premium gold-bordered card, gradient + glow)
   ========================================================================== */

.pillar-cta {
  position: relative;
  padding: clamp(2.5rem, 5vw, 4rem);
  border: 1px solid var(--pillar-accent);
  border-radius: 8px;
  background:
    radial-gradient(ellipse at top right, rgba(201, 169, 97, 0.15), transparent 60%),
    radial-gradient(ellipse at bottom left, rgba(201, 169, 97, 0.08), transparent 50%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.025), transparent 40%),
    var(--pillar-bg-elevated);
  display: grid;
  gap: 2rem;
  align-items: center;
  box-shadow:
    0 1px 0 rgba(201, 169, 97, 0.3) inset,
    0 32px 64px -24px rgba(201, 169, 97, 0.2),
    0 0 0 1px rgba(201, 169, 97, 0.15);
  overflow: hidden;
}

.pillar-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    transparent 30%,
    rgba(201, 169, 97, 0.04) 50%,
    transparent 70%
  );
  animation: pillar-shimmer 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes pillar-shimmer {
  0%, 100% { transform: translateX(-30%); }
  50% { transform: translateX(30%); }
}

@media (min-width: 768px) {
  .pillar-cta {
    grid-template-columns: 1fr auto;
  }
}

.pillar-cta__title {
  font-family: "Fraunces", serif;
  font-weight: 400;
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  line-height: 1.15;
  color: var(--c-fg);
  margin: 0;
}

.pillar-cta__sub {
  font-size: 0.95rem;
  color: var(--c-fg-muted);
  margin: 0.5rem 0 0;
  max-width: 50ch;
}

.pillar-cta__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 1.6rem;
  background: var(--pillar-accent);
  color: #0a0a0a;
  border: 1px solid var(--pillar-accent);
  border-radius: 999px;
  font-family: "Inter", sans-serif;
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background-color var(--motion-dur-fast) var(--motion-ease),
    transform var(--motion-dur-fast) var(--motion-ease);
}

.pillar-cta__btn:hover,
.pillar-cta__btn:focus-visible {
  background: var(--pillar-accent-hot);
  border-color: var(--pillar-accent-hot);
  transform: translateY(-1px);
  outline: none;
}

.pillar-cta__btn:active {
  transform: translateY(0);
}

.pillar-cta__btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ==========================================================================
   9. REVEAL ANIMATIONS (CSS-only, scroll-driven when supported, graceful fallback)
   --------------------------------------------------------------------------
   No inline JS allowed (CSP + AGENTS.md). Default = fully visible so the
   page is always readable. The scroll-driven path animates from a small
   offset/scale to neutral, BUT the resting state (to) must be the natural
   visible state so cards stay readable even when the animation hasn't fired.

   We use `cover 0% cover 0%` so the animation completes the instant the
   item enters the viewport, instead of waiting for partial coverage that
   leaves items in their `from` state when scrolled past quickly.
   ========================================================================== */

.pillar-reveal {
  /* Default = visible, neutral. */
  opacity: 1;
  transform: none;
  filter: none;
  transition: none;
}

/* Scroll-driven path (Chromium 115+, Safari 26+). */
@supports (animation-timeline: view()) {
  .pillar-reveal {
    animation: pillar-rise linear both;
    animation-timeline: view();
    /* cover 0% cover 0% : animation completes the instant the item's
       top edge crosses the viewport bottom (entering). The element
       spends no time in the `from` offset state once visible. */
    animation-range: cover 0% cover 0%;
  }
  @keyframes pillar-rise {
    from {
      transform: translateY(calc(var(--motion-distance) * 1.5)) scale(0.97);
    }
    to {
      transform: translateY(0) scale(1);
    }
  }
}

/* ==========================================================================
   10. REDUCED MOTION
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  .pillar-reveal {
    animation: none;
  }
  .pillar-cta::before {
    animation: none;
  }
  .pillar-vs__col,
  .pillar-article-card,
  .pillar-factors__item,
  .pillar-cta__btn,
  .pillar-faq summary,
  .pillar-faq summary::after {
    transition: none;
  }
}