/* ============================================================
   Kronos Scientifica — site styles (Deloitte-inspired marketing)
   Built on the Kronos design tokens. Bold & modern, client-first.
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--text-body);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

/* prevent flash of unstyled React mount */
#root:empty::after {
  content: "";
  display: block;
  min-height: 100vh;
}

::selection { background: var(--ks-cyan-200); color: var(--ks-navy-900); }

/* ---- Layout ---- */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--md { max-width: var(--container-md); }
.container--lg { max-width: var(--container-lg); }

.section {
  padding-block: clamp(64px, 9vw, 140px);
}
[data-density="spacious"] .section {
  padding-block: clamp(88px, 12vw, 180px);
}
.section--tight { padding-block: clamp(48px, 6vw, 88px); }

.section--navy {
  background: var(--surface-inverse);
  color: var(--text-on-navy);
}
.section--ink {
  background: var(--ks-navy-950);
  color: var(--text-on-navy);
}
.section--stone { background: var(--ks-stone-100); }

/* ---- Type helpers ---- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--ks-cyan-700);
  margin: 0 0 var(--space-5);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.section--navy .eyebrow, .section--ink .eyebrow { color: var(--ks-cyan-400); }
[data-accent="minimal"] .eyebrow { color: var(--text-muted); }
[data-accent="minimal"] .section--navy .eyebrow { color: var(--ks-navy-300); }

.display {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
  color: var(--text-strong);
  margin: 0;
  text-wrap: balance;
}
.section--navy .display, .section--ink .display { color: var(--text-on-navy); }

.h1 { font-size: clamp(40px, 6.5vw, 84px); }
.h2 { font-size: clamp(30px, 4.2vw, 52px); }
.h3 { font-size: clamp(22px, 2.4vw, 32px); }

.lede {
  font-size: clamp(17px, 1.5vw, 21px);
  line-height: var(--leading-relaxed);
  color: var(--text-muted);
  max-width: 56ch;
  text-wrap: pretty;
  margin: 0;
}
.section--navy .lede, .section--ink .lede { color: var(--text-on-navy-muted); }

.kicker-rule {
  width: 40px; height: 2px; background: var(--ks-cyan-500);
  border: none; margin: 0;
}

/* ---- Header ---- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.82);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease-out), background var(--dur-base) var(--ease-out);
}
.site-header[data-scrolled="true"] {
  border-bottom-color: var(--border-subtle);
  box-shadow: var(--shadow-xs);
}
.site-header__bar {
  display: flex; align-items: center; gap: var(--space-8);
  height: 76px;
}
.site-header__logo img { height: 30px; width: auto; }
.site-nav {
  display: flex; align-items: center; gap: 4px;
  margin-left: auto;
}
.site-nav a.navlink {
  display: inline-flex; align-items: center;
  padding: 9px 14px; border-radius: var(--radius-sm);
  font-size: var(--text-sm); font-weight: var(--weight-medium);
  color: var(--text-body);
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.site-nav a.navlink:hover { background: var(--ks-navy-100); color: var(--text-strong); }
.site-nav a.navlink[data-active="true"] { color: var(--text-strong); font-weight: var(--weight-semibold); }
.site-header__cta { margin-left: var(--space-4); display: flex; gap: 10px; align-items: center; }

.menu-toggle { display: none; }

@media (max-width: 920px) {
  .site-nav, .site-header__cta { display: none; }
  .menu-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    margin-left: auto; width: 44px; height: 44px;
    border: 1px solid var(--border-default); border-radius: var(--radius-sm);
    background: var(--ks-white); cursor: pointer; color: var(--text-strong);
  }
  .mobile-menu.open { display: block; }
}
.mobile-menu { display: none; border-top: 1px solid var(--border-subtle); background: var(--ks-white); }
.mobile-menu a {
  display: block; padding: 16px var(--gutter); font-size: var(--text-md);
  font-weight: var(--weight-medium); border-bottom: 1px solid var(--border-subtle);
}

/* ---- Grid utilities ---- */
.grid { display: grid; gap: var(--space-6); }
.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1024px) { .cols-4 { grid-template-columns: repeat(2, 1fr); } .cols-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 700px) { .cols-2, .cols-3, .cols-4 { grid-template-columns: 1fr; } }

/* ---- Clinical placeholder imagery ---- */
.ks-img {
  position: relative; overflow: hidden;
  background:
    linear-gradient(135deg, var(--ks-navy-800), var(--ks-navy-950));
  border-radius: var(--radius-lg);
  color: var(--ks-navy-300);
}
.ks-img::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(120% 120% at 70% 30%, #000 30%, transparent 75%);
}
.ks-img__label {
  position: absolute; left: 16px; bottom: 14px;
  font-family: var(--font-mono); font-size: var(--text-2xs);
  letter-spacing: var(--tracking-wide); text-transform: uppercase;
  color: var(--ks-cyan-400);
}
.ks-img__plus {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  width: 64px; height: 64px; opacity: 0.5;
}
[data-accent="minimal"] .ks-img__plus { display: none; }

/* link with arrow */
.arrow-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: var(--weight-semibold); font-size: var(--text-sm);
  color: var(--ks-cyan-700); cursor: pointer;
}
.section--navy .arrow-link, .section--ink .arrow-link { color: var(--ks-cyan-400); }
.arrow-link .arrow { transition: transform var(--dur-base) var(--ease-out); }
.arrow-link:hover .arrow { transform: translateX(4px); }

/* ---- Footer ---- */
.site-footer { background: var(--ks-navy-950); color: var(--text-on-navy); }
.site-footer a { color: var(--ks-navy-300); font-size: var(--text-sm); }
.site-footer a:hover { color: var(--ks-white); }
.footer-col h4 {
  font-family: var(--font-mono); font-size: var(--text-2xs);
  letter-spacing: var(--tracking-caps); text-transform: uppercase;
  color: var(--ks-cyan-400); margin: 0 0 16px; font-weight: var(--weight-medium);
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 11px; }

/* ---- reveal on scroll ---- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1 !important; transform: none !important; transition: none; } }
[data-motion="off"] .reveal { opacity: 1 !important; transform: none !important; transition: none; }

/* ---- pills / chips row ---- */
.chip-row { display: flex; flex-wrap: wrap; gap: 10px; }

/* accent intensity: vivid adds a cyan signal edge to the header */
[data-accent="vivid"] .site-header { border-top: 3px solid var(--ks-cyan-500); }
[data-accent="vivid"] .site-header[data-scrolled="true"] { box-shadow: 0 1px 0 var(--ks-cyan-200), var(--shadow-xs); }

/* ============================================================
   Commercialization Assessment
   ============================================================ */
.as-main { background: var(--color-bg); min-height: 70vh; }
.as-shell { max-width: 880px; margin-inline: auto; padding: clamp(36px,6vw,80px) var(--gutter); }

/* welcome */
.as-welcome { max-width: 640px; }
.as-dims { list-style: none; margin: 0 0 32px; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 560px){ .as-dims { grid-template-columns: 1fr; } }
.as-dims li { display: flex; align-items: center; gap: 10px; font-size: var(--text-sm); color: var(--text-body); }
.as-dims__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ks-cyan-500); flex-shrink: 0; }
.as-fine { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--text-subtle); margin-top: 18px; }

/* quiz */
.as-progress { height: 6px; background: var(--ks-navy-100); border-radius: var(--radius-pill); overflow: hidden; margin-bottom: 28px; }
.as-progress__bar { height: 100%; background: var(--ks-cyan-500); border-radius: var(--radius-pill); transition: width var(--dur-base) var(--ease-out); }
.as-quiz__meta { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 14px;
  font-family: var(--font-mono); font-size: var(--text-2xs); letter-spacing: var(--tracking-wide); text-transform: uppercase; }
.as-section { color: var(--ks-cyan-700); }
.as-count { color: var(--text-subtle); }
.as-q { font-size: clamp(22px,3vw,32px); line-height: 1.2; color: var(--text-strong); margin: 0 0 26px; letter-spacing: -0.01em; }
.as-options { display: flex; flex-direction: column; gap: 12px; margin-bottom: 32px; }
.as-option { display: flex; align-items: center; gap: 14px; width: 100%; text-align: left;
  padding: 16px 18px; background: var(--ks-white); border: 1px solid var(--border-default);
  border-left: 3px solid transparent; border-radius: var(--radius-md); cursor: pointer;
  font-family: var(--font-body); font-size: var(--text-base); color: var(--text-body);
  transition: border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out); }
.as-option:hover { border-color: var(--ks-cyan-400); }
.as-option__tick { width: 20px; height: 20px; border-radius: 50%; border: 2px solid var(--border-strong); flex-shrink: 0; position: relative; transition: border-color var(--dur-fast) var(--ease-out); }
.as-option[data-sel="true"] { border-color: var(--ks-cyan-500); border-left-color: var(--ks-cyan-600); background: var(--ks-cyan-100); }
.as-option[data-sel="true"] .as-option__tick { border-color: var(--ks-cyan-600); background: var(--ks-cyan-600); }
.as-option[data-sel="true"] .as-option__tick::after { content: ""; position: absolute; inset: 4px; border-radius: 50%; background: #fff; }
.as-nav { display: flex; align-items: center; justify-content: space-between; }
.as-back { background: none; border: none; cursor: pointer; font-family: var(--font-body); font-size: var(--text-sm); font-weight: var(--weight-medium); color: var(--text-muted); padding: 10px 4px; }
.as-back:hover { color: var(--text-strong); }

/* results */
.as-h3 { font-family: var(--font-display); font-weight: 600; font-size: var(--text-md); color: var(--text-strong); margin: 0 0 18px; }
.as-score-card { text-align: center; background: var(--ks-white); border: 1px solid var(--border-subtle); border-radius: var(--radius-xl); box-shadow: var(--shadow-md); padding: clamp(28px,4vw,44px); margin-bottom: 24px; }
.as-score { font-family: var(--font-mono); font-weight: 600; font-size: clamp(64px,12vw,108px); line-height: 1; letter-spacing: -0.03em; }
.as-score__d { font-size: 0.3em; color: var(--text-subtle); margin-left: 4px; }
.as-risk { display: inline-block; margin-top: 12px; padding: 7px 18px; border-radius: var(--radius-pill); color: #fff; font-family: var(--font-body); font-size: var(--text-sm); font-weight: var(--weight-semibold); }
.as-score__sub { color: var(--text-muted); font-size: var(--text-sm); max-width: 44ch; margin: 18px auto 0; }
.as-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 24px; }
@media (max-width: 720px){ .as-cols { grid-template-columns: 1fr; } }
.as-bars, .as-radar { background: var(--ks-white); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: var(--space-6); }
.as-bar { margin-bottom: 16px; }
.as-bar:last-child { margin-bottom: 0; }
.as-bar__top { display: flex; justify-content: space-between; font-size: var(--text-sm); margin-bottom: 7px; color: var(--text-body); }
.as-bar__v { font-family: var(--font-mono); font-weight: 500; color: var(--text-strong); }
.as-bar__track { height: 9px; background: var(--ks-navy-100); border-radius: var(--radius-pill); overflow: hidden; }
.as-bar__fill { height: 100%; border-radius: var(--radius-pill); transition: width 0.8s var(--ease-out); }
.as-radar__wrap { position: relative; height: 260px; }
.as-note { display: flex; flex-direction: column; gap: 6px; background: var(--ks-cyan-100); border: 1px solid var(--ks-cyan-200); border-radius: var(--radius-md); padding: 16px 18px; margin-bottom: 24px; font-size: var(--text-sm); color: var(--ks-navy-800); line-height: 1.55; }
.as-note__k { font-family: var(--font-mono); font-size: var(--text-2xs); letter-spacing: var(--tracking-wide); text-transform: uppercase; color: var(--ks-cyan-700); }
.as-recs { margin-bottom: 24px; }
.as-recs__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 720px){ .as-recs__grid { grid-template-columns: 1fr; } }
.as-rec { background: var(--ks-white); border: 1px solid var(--border-subtle); border-top: 3px solid var(--ks-cyan-500); border-radius: var(--radius-lg); padding: var(--space-6); }
.as-rec__n { font-family: var(--font-mono); font-size: var(--text-sm); color: var(--ks-cyan-700); margin-bottom: 12px; }
.as-rec__t { font-size: var(--text-md); color: var(--text-strong); margin-bottom: 10px; line-height: 1.25; }
.as-rec__p { font-size: var(--text-sm); line-height: 1.6; color: var(--text-muted); margin: 0; }
.as-cta { text-align: center; background: var(--surface-inverse); border-radius: var(--radius-xl); padding: clamp(32px,5vw,56px); }
.as-lead { background: var(--ks-white); border: 1px solid var(--border-subtle); border-top: 3px solid var(--ks-cyan-500); border-radius: var(--radius-lg); padding: var(--space-8); margin-bottom: 24px; display: flex; flex-direction: column; gap: 10px; }
.as-lead__k { font-family: var(--font-mono); font-size: var(--text-2xs); letter-spacing: var(--tracking-wide); text-transform: uppercase; color: var(--ks-cyan-700); }
.as-lead__sub { font-size: var(--text-sm); line-height: 1.6; color: var(--text-muted); margin: 0 0 8px; max-width: 56ch; }
.as-lead__row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 6px; }
@media (max-width: 720px){ .as-lead__row { grid-template-columns: 1fr; } }
.as-lead__field { display: flex; flex-direction: column; gap: 6px; }
.as-lead__field span { font-size: var(--text-sm); font-weight: 500; color: var(--text-body); }
.as-lead__field input { font-family: var(--font-body); font-size: var(--text-md); padding: 11px 13px; border: 1px solid var(--border-default); border-radius: var(--radius-md); background: var(--ks-white); color: var(--text-strong); }
.as-lead__field input:focus { outline: none; border-color: var(--ks-cyan-500); box-shadow: 0 0 0 3px var(--ks-cyan-100); }
.as-lead__err { font-size: var(--text-sm); color: #c0392b; margin: 0; }
.as-lead--done { align-items: flex-start; }

/* play button */
.play-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--ks-cyan-500); color: var(--ks-navy-900);
  box-shadow: var(--shadow-lg);
  transition: transform var(--dur-base) var(--ease-out);
}

/* ---- Prose (legal / long-form text) ---- */
.prose { max-width: 72ch; color: var(--text-body); font-size: var(--text-md); line-height: var(--leading-relaxed); }
.prose > p:first-child { font-size: var(--text-lg); color: var(--text-strong); }
.prose h2 {
  font-family: var(--font-display); font-weight: var(--weight-semibold);
  font-size: clamp(20px, 2.4vw, 28px); letter-spacing: var(--tracking-tight);
  color: var(--text-strong); margin: var(--space-12) 0 var(--space-4);
  padding-top: var(--space-6); border-top: 1px solid var(--border-subtle);
}
.prose h3 {
  font-family: var(--font-display); font-weight: var(--weight-semibold);
  font-size: var(--text-md); color: var(--text-strong); margin: var(--space-8) 0 var(--space-3);
}
.prose p { margin: 0 0 var(--space-4); text-wrap: pretty; }
.prose ul { margin: 0 0 var(--space-5); padding-left: 0; list-style: none; }
.prose li {
  position: relative; padding-left: 24px; margin-bottom: var(--space-3);
  color: var(--text-muted);
}
.prose li::before {
  content: ""; position: absolute; left: 4px; top: 11px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--ks-cyan-500);
}
.prose strong { color: var(--text-strong); font-weight: var(--weight-semibold); }
.prose a { color: var(--ks-cyan-700); text-decoration: underline; text-underline-offset: 2px; }
.prose a:hover { color: var(--ks-cyan-600); }

/* ============================================================
   Article (long-form Insights post)
   ============================================================ */
.art-back {
  font-family: var(--font-mono); font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide); text-transform: uppercase;
  color: var(--text-muted); transition: color var(--dur-fast) var(--ease-out);
}
.art-back:hover { color: var(--ks-cyan-700); }

.art-hero-img {
  width: 100%; aspect-ratio: 21/9; object-fit: cover;
  border-radius: var(--radius-lg); margin-top: clamp(28px, 4vw, 48px);
  border: 1px solid var(--border-subtle);
}

/* two-column layout: sticky takeaways aside + article column */
.art-layout {
  display: grid; grid-template-columns: 240px minmax(0, 1fr);
  gap: clamp(32px, 5vw, 72px); align-items: start;
}
@media (max-width: 880px) { .art-layout { grid-template-columns: 1fr; } }

.art-aside { position: sticky; top: 104px; }
@media (max-width: 880px) { .art-aside { position: static; } }

.art-tk {
  border-top: 2px solid var(--ks-cyan-500);
  padding-top: var(--space-5);
}
.art-tk__k {
  display: block; font-family: var(--font-mono); font-size: var(--text-2xs);
  letter-spacing: var(--tracking-wide); text-transform: uppercase;
  color: var(--ks-cyan-700); margin-bottom: var(--space-4);
}
.art-tk ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-4); }
.art-tk li {
  font-size: var(--text-sm); line-height: 1.55; color: var(--text-muted);
  padding-left: 18px; position: relative;
}
.art-tk li::before {
  content: ""; position: absolute; left: 0; top: 8px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--ks-cyan-500);
}

/* article body column */
.art-col { max-width: 70ch; }
.art-p {
  font-size: var(--text-md); line-height: 1.72; color: var(--text-body);
  margin: 0 0 var(--space-5); text-wrap: pretty;
}
.art-col > .art-p:first-child {
  font-size: clamp(19px, 1.7vw, 23px); line-height: 1.6; color: var(--text-strong);
}
.art-p em { font-style: italic; color: var(--text-strong); }
.art-h2 {
  font-family: var(--font-display); font-weight: var(--weight-semibold);
  font-size: clamp(24px, 2.8vw, 34px); letter-spacing: var(--tracking-tight);
  line-height: 1.2; color: var(--text-strong);
  margin: var(--space-12) 0 var(--space-5);
}

/* footnote citation markers */
.fn { font-size: 0.62em; line-height: 0; vertical-align: super; margin-left: 1px; }
.fn a {
  color: var(--ks-cyan-700); font-family: var(--font-mono); font-weight: 600;
  padding: 0 1px; text-decoration: none;
}
.fn a:hover { color: var(--ks-cyan-600); text-decoration: underline; }

/* pull quote */
.art-pull {
  margin: var(--space-10) 0; padding: var(--space-2) 0 var(--space-2) var(--space-8);
  border-left: 3px solid var(--ks-cyan-500); position: relative;
}
.art-pull__mark {
  font-family: var(--font-mono); color: var(--ks-cyan-600);
  font-size: var(--text-md); position: absolute; left: var(--space-5); top: 2px; display: none;
}
.art-pull blockquote {
  margin: 0; font-family: var(--font-display); font-weight: var(--weight-medium);
  font-size: clamp(21px, 2.4vw, 30px); line-height: 1.3; letter-spacing: -0.01em;
  color: var(--text-strong); text-wrap: balance;
}
.art-pull figcaption {
  margin-top: var(--space-4); font-family: var(--font-mono); font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide); text-transform: uppercase; color: var(--text-subtle);
}

/* stat strip */
.art-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5);
  margin: var(--space-10) 0; padding: var(--space-8) 0;
  border-top: 1px solid var(--border-default); border-bottom: 1px solid var(--border-default);
}
@media (max-width: 720px) { .art-stats { grid-template-columns: 1fr 1fr; gap: var(--space-6); } }
@media (max-width: 420px) { .art-stats { grid-template-columns: 1fr; } }
.art-stat__num {
  font-family: var(--font-mono); font-weight: 600; letter-spacing: -0.02em;
  font-size: clamp(28px, 3.4vw, 40px); color: var(--ks-navy-700); line-height: 1;
  margin-bottom: var(--space-3);
}
.art-stat__label { font-size: var(--text-xs); line-height: 1.5; color: var(--text-muted); }
.art-stat__label .fn a { color: var(--ks-cyan-700); }

/* numbered framework */
.art-fw {
  margin: var(--space-10) 0; padding: clamp(24px, 3vw, 36px);
  background: var(--ks-stone-100); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}
.art-fw__list { list-style: none; margin: var(--space-2) 0 0; padding: 0; display: flex; flex-direction: column; }
.art-fw__item {
  display: grid; grid-template-columns: 56px 1fr; gap: var(--space-5);
  padding: var(--space-6) 0; border-top: 1px solid var(--border-subtle);
}
.art-fw__item:first-child { border-top: none; padding-top: var(--space-3); }
.art-fw__n {
  font-family: var(--font-mono); font-weight: 600; font-size: var(--text-lg);
  color: var(--ks-cyan-600); line-height: 1.1;
}
.art-fw__h {
  font-family: var(--font-display); font-weight: var(--weight-semibold);
  font-size: var(--text-md); color: var(--text-strong); margin: 0 0 var(--space-2); line-height: 1.25;
}
.art-fw__p { font-size: var(--text-sm); line-height: 1.65; color: var(--text-muted); margin: 0; }

/* inline callout */
.art-callout {
  margin: var(--space-8) 0; padding: var(--space-6) var(--space-8);
  background: var(--ks-stone-50); border: 1px solid var(--border-subtle);
  border-top: 3px solid var(--ks-cyan-500); border-radius: var(--radius-lg);
}
.art-callout__k {
  display: block; font-family: var(--font-mono); font-size: var(--text-2xs);
  letter-spacing: var(--tracking-wide); text-transform: uppercase;
  color: var(--ks-cyan-700); margin-bottom: var(--space-3);
}
.art-callout p { margin: 0; color: var(--text-body); font-size: var(--text-md); line-height: 1.6; }

/* references */
.art-refs { margin-top: var(--space-12); }
.art-refs ol {
  margin: var(--space-2) 0 0; padding-left: 0; list-style: none;
  counter-reset: ref;
}
.art-refs li {
  counter-increment: ref; position: relative; padding-left: 32px;
  margin-bottom: var(--space-4); font-size: var(--text-sm); line-height: 1.6;
  color: var(--text-muted); scroll-margin-top: 100px;
}
.art-refs li::before {
  content: counter(ref); position: absolute; left: 0; top: 0;
  font-family: var(--font-mono); font-weight: 600; font-size: var(--text-xs);
  color: var(--ks-cyan-700);
}
.art-refs li:target { color: var(--text-strong); }
.art-refs a { color: inherit; text-decoration: underline; text-underline-offset: 2px; text-decoration-color: var(--border-strong); }
.art-refs a:hover { color: var(--ks-cyan-700); }

/* CTA band */
.art-cta-band { text-align: center; }
.art-cta-actions { display: flex; gap: var(--space-4); justify-content: center; flex-wrap: wrap; margin-top: var(--space-8); }