/*
 * insights.css — Insights: an editorial magazine (insights.html)
 * Reuses the site design system: light blueprint-grid hero (like about/service/
 * case-study), Instrument Serif italic accent, navy monochrome tokens, shared
 * .btn / .eyebrow / container. Rhythm is light-first with one dark newsletter
 * moment, then a light close. Article reader shares the same light hero.
 */

/* ═══ HERO (light — blueprint grid) ═════════════════════════════════════ */
.ins-hero {
  position: relative;
  margin-top: calc(-1 * var(--navbar-height));
  padding-top: calc(var(--navbar-height) + var(--space-16));
  padding-bottom: var(--space-16);
  background: linear-gradient(180deg, #ffffff 0%, #eef1f8 100%);
  overflow: hidden;
}
.ins-hero__bg { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.ins-hero__orb { position: absolute; border-radius: 50%; filter: blur(90px); will-change: transform; }
.ins-hero__orb--1 { width: 520px; height: 520px; background: rgba(21, 67, 120, 0.10); top: -170px; right: -120px; }
.ins-hero__orb--2 { width: 420px; height: 420px; background: rgba(21, 67, 120, 0.07); bottom: -160px; left: -110px; }
.ins-hero__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right,  rgba(21, 67, 120, 0.085) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(21, 67, 120, 0.085) 1px, transparent 1px),
    linear-gradient(to right,  rgba(21, 67, 120, 0.038) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(21, 67, 120, 0.038) 1px, transparent 1px);
  background-size: 96px 96px, 96px 96px, 24px 24px, 24px 24px;
  -webkit-mask-image: radial-gradient(ellipse 90% 78% at 50% 30%, #000 20%, transparent 100%);
          mask-image: radial-gradient(ellipse 90% 78% at 50% 30%, #000 20%, transparent 100%);
}
/* Tiny drifting particles — max ~6% opacity, never distracting */
.ins-hero__particles { position: absolute; inset: 0; opacity: 0.6; }
.ins-hero__particles::before,
.ins-hero__particles::after {
  content: ''; position: absolute; border-radius: 50%;
  background: radial-gradient(circle, rgba(21, 67, 120, 0.06), transparent 70%);
}
.ins-hero__particles::before { width: 8px; height: 8px; top: 32%; left: 18%; animation: insDrift 13s ease-in-out infinite; }
.ins-hero__particles::after  { width: 6px; height: 6px; top: 58%; left: 74%; animation: insDrift 17s ease-in-out infinite reverse; }
@keyframes insDrift {
  0%, 100% { transform: translate(0, 0); }
  50%      { transform: translate(14px, -18px); }
}

.ins-hero__container { position: relative; z-index: 1; max-width: 940px; }

.ins-breadcrumb { display: flex; align-items: center; gap: var(--space-2); font-size: var(--text-sm); margin-bottom: var(--space-6); flex-wrap: wrap; }
.ins-breadcrumb a { color: rgba(21, 34, 66, 0.62); text-decoration: none; transition: color 180ms ease; }
.ins-breadcrumb a:hover { color: var(--color-brand-900, #0b2543); }
.ins-breadcrumb span[aria-hidden] { color: rgba(21, 34, 66, 0.30); }
.ins-breadcrumb span[aria-current] { color: var(--color-brand-600); font-weight: 600; }

.ins-hero__eyebrow-wrap { margin-bottom: var(--space-4); }
.ins-hero__eyebrow-wrap .eyebrow { color: var(--color-brand-600); }
.ins-hero__headline {
  font-size: clamp(2.4rem, 6vw, 4.75rem); font-weight: 800; line-height: 1.02;
  letter-spacing: -0.035em; color: var(--color-brand-900, #0b2543); margin: 0 0 var(--space-6);
}
/* Instrument Serif italic accent — matches the homepage hero */
.ins-hero__serif {
  font-family: 'Instrument Serif', Georgia, 'Times New Roman', serif;
  font-style: italic; font-weight: 400; letter-spacing: normal;
  color: var(--color-text-accent, #154378);
}
.ins-hero__sub { font-size: var(--text-body-lg); color: rgba(21, 34, 66, 0.66); line-height: 1.7; max-width: 60ch; margin: 0; }
.ins-hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-8); }

/* Dark theme keeps this hero light (like the other inner heroes) */
:root[data-theme="dark"] .ins-hero__headline { color: #0b2543; }
:root[data-theme="dark"] .ins-hero__sub { color: rgba(21, 34, 66, 0.66); }
:root[data-theme="dark"] .ins-hero__eyebrow-wrap .eyebrow { color: var(--color-brand-600); }

/* Scroll indicator */
.ins-scroll {
  position: absolute; left: 50%; bottom: var(--space-6); transform: translateX(-50%);
  z-index: 1; display: flex; flex-direction: column; align-items: center; gap: var(--space-2);
  text-decoration: none; color: rgba(21, 34, 66, 0.5);
}
.ins-scroll__label { font-size: var(--text-2xs); letter-spacing: 0.16em; text-transform: uppercase; font-weight: 700; }
.ins-scroll__line { position: relative; width: 1.5px; height: 42px; background: rgba(21, 67, 120, 0.18); overflow: hidden; }
.ins-scroll__line::after {
  content: ''; position: absolute; left: 0; top: 0; width: 100%; height: 40%;
  background: var(--color-brand-500); animation: insScroll 1.8s var(--ease-in-out, ease-in-out) infinite;
}
@keyframes insScroll { 0% { transform: translateY(-100%); } 100% { transform: translateY(280%); } }

/* ═══ FEATURED ══════════════════════════════════════════════════════════ */
.ins-feat { background: var(--color-bg); padding: var(--space-20) 0 var(--space-16); }
.ins-feat .ins-sec-head { margin-bottom: var(--space-8); text-align: left; max-width: none; }
.ins-feat .eyebrow { color: var(--color-brand-600); }

.ins-feat__card {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(var(--space-8), 4vw, var(--space-16));
  align-items: center; text-decoration: none;
}
.ins-feat__media {
  position: relative; overflow: hidden; border-radius: var(--radius-3xl);
  border: 1px solid var(--color-border); box-shadow: 0 30px 70px rgba(21, 67, 120, 0.14);
  aspect-ratio: 4 / 3;
}
.ins-feat__img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform 600ms var(--ease-out); }
.ins-feat__card:hover .ins-feat__img { transform: scale(1.05); }
.ins-feat__badge { position: absolute; top: var(--space-4); left: var(--space-4); }
.ins-feat__badge .ins-pill { background: rgba(255,255,255,0.92); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); box-shadow: 0 4px 14px rgba(21,67,120,0.12); }
.ins-feat__body { display: flex; flex-direction: column; gap: var(--space-4); }
.ins-feat__title {
  font-family: var(--font-display); font-size: clamp(1.75rem, 3.4vw, 2.75rem);
  font-weight: 800; line-height: 1.12; letter-spacing: -0.03em; color: var(--color-text-primary);
}
.ins-feat__excerpt { font-size: var(--text-body-lg); color: var(--color-text-tertiary); line-height: 1.7; max-width: 52ch; }
.ins-feat__cta { margin-left: auto; display: inline-flex; align-items: center; gap: var(--space-2); font-weight: 700; font-size: var(--text-body-sm); color: var(--color-brand-500); transition: gap 220ms ease; }
.ins-feat__card:hover .ins-feat__cta { gap: var(--space-3); }
.ins-feat__card:hover .ins-feat__cta svg { transform: translateX(3px); }

/* ═══ BYLINE ════════════════════════════════════════════════════════════ */
.ins-byline { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.ins-byline__avatar { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; font-family: var(--font-display); font-weight: 800; color: #fff; background: linear-gradient(145deg, var(--color-brand-500), var(--color-brand-700)); box-shadow: 0 8px 18px rgba(21,67,120,0.24); }
.ins-byline__meta { display: flex; flex-direction: column; }
.ins-byline__author { font-weight: 700; color: var(--color-text-primary); font-size: var(--text-body-sm); }
.ins-byline__sub { font-size: var(--text-xs); color: var(--color-text-tertiary); }

/* ═══ COVERS (image + placeholder fallback) ═════════════════════════════ */
.ins-cover { display: block; position: relative; overflow: hidden; }
.ins-cover__img, .ins-cover__ph { display: block; width: 100%; height: 100%; transition: transform 500ms var(--ease-out); }
.ins-card__cover, .ins-card .ins-cover__ph { aspect-ratio: 16 / 10; }
.ins-cover__img { object-fit: cover; }
.ins-cover__ph { display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.22); }
.ins-cover__ph--ai      { background: linear-gradient(145deg, #0c1f35 0%, #123C6C 60%, #235286 100%); }
.ins-cover__ph--product { background: linear-gradient(145deg, #0c1f35 0%, #163459 55%, #154378 130%); }
.ins-cover__ph--eng     { background: linear-gradient(145deg, #05101F 0%, #0b1c30 55%, #154378 120%); }
.ins-cover__ph--growth  { background: linear-gradient(145deg, #0c1f35 0%, #123C6C 55%, #1f7a5c 130%); }
.ins-cover__mono { position: relative; z-index: 1; display: flex; align-items: center; justify-content: center; width: 62px; height: 62px; border-radius: var(--radius-xl); background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.14); color: rgba(255,255,255,0.85); }

/* ═══ CATEGORY FILTER BAR (sticky) ══════════════════════════════════════ */
.ins-filterbar {
  position: sticky; top: var(--navbar-height); z-index: 40;
  background: color-mix(in srgb, var(--color-bg-subtle) 82%, transparent);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.ins-filterbar__inner { display: flex; flex-wrap: wrap; gap: var(--space-2); padding-top: var(--space-4); padding-bottom: var(--space-4); }
.ins-filter {
  position: relative; display: inline-flex; align-items: center;
  font-family: inherit; font-size: var(--text-sm); font-weight: 600;
  color: var(--color-text-secondary); background: var(--color-bg);
  border: 1px solid var(--color-border); border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4); cursor: pointer;
  transition: color 180ms ease, background 200ms var(--ease-out), border-color 180ms ease, transform 200ms var(--ease-spring), box-shadow 220ms ease;
}
.ins-filter__label { position: relative; }
.ins-filter__label::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -2px; height: 1.5px;
  background: currentColor; transform: scaleX(0); transform-origin: left center;
  transition: transform 220ms var(--ease-out);
}
.ins-filter:hover { color: var(--color-text-primary); border-color: var(--color-border-strong); transform: translateY(-1px); }
.ins-filter:hover .ins-filter__label::after { transform: scaleX(1); }
.ins-filter.is-active { color: #fff; background: var(--color-brand-500); border-color: var(--color-brand-500); box-shadow: 0 8px 20px rgba(21,67,120,0.24); }
.ins-filter.is-active .ins-filter__label::after { transform: scaleX(0); }

/* ═══ LATEST — editorial masonry ════════════════════════════════════════ */
.ins-latest { background: var(--color-bg-subtle); padding: var(--space-16) 0 var(--space-24); }
.ins-masonry { display: block; columns: 3; column-gap: var(--space-6); }
.ins-masonry .ins-card { break-inside: avoid; margin-bottom: var(--space-6); width: 100%; }
.ins-grid__empty { margin: var(--space-10) 0 0; text-align: center; color: var(--color-text-tertiary); font-size: var(--text-body); }
.ins-grid__empty a { color: var(--color-brand-500); font-weight: 600; }
.ins-card.is-hidden { display: none; }

.ins-card {
  display: flex; flex-direction: column; text-decoration: none;
  background: var(--color-bg); border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl); overflow: hidden;
  transition: transform 320ms var(--ease-out), box-shadow 320ms ease, border-color 320ms ease;
}
.ins-card:hover { transform: translateY(-6px) rotate(-0.4deg); border-color: rgba(21,67,120,0.28); box-shadow: 0 24px 50px rgba(21,67,120,0.14); }
.ins-card:hover .ins-card__cover, .ins-card:hover .ins-cover__ph { transform: scale(1.05); }
.ins-card--tall .ins-card__cover, .ins-card--tall .ins-cover__ph { aspect-ratio: 3 / 4; }
.ins-card__body { display: flex; flex-direction: column; gap: var(--space-3); padding: var(--space-6); flex: 1; }
.ins-card__meta { display: flex; align-items: center; gap: var(--space-3); }
.ins-card__read { display: inline-flex; align-items: center; gap: 5px; font-size: var(--text-xs); color: var(--color-text-tertiary); font-weight: 500; }
.ins-card__title { font-family: var(--font-display); font-size: var(--text-h6); font-weight: 700; line-height: 1.32; letter-spacing: -0.01em; color: var(--color-text-primary); }
.ins-card__excerpt { font-size: var(--text-body-sm); color: var(--color-text-tertiary); line-height: 1.6; flex: 1; }
.ins-card__foot { display: flex; align-items: center; justify-content: space-between; margin-top: var(--space-2); padding-top: var(--space-3); border-top: 1px solid var(--color-border); }
.ins-card__date { font-size: var(--text-xs); color: var(--color-text-tertiary); }
.ins-card__cta { display: inline-flex; align-items: center; gap: var(--space-1); font-size: var(--text-sm); font-weight: 700; color: var(--color-brand-500); transition: gap 200ms ease; }
.ins-card__cta svg { transition: transform 200ms var(--ease-out); }
.ins-card:hover .ins-card__cta { gap: var(--space-2); }
.ins-card:hover .ins-card__cta svg { transform: translateX(3px); }

/* Category pills */
.ins-pill { display: inline-flex; align-items: center; gap: 5px; font-size: var(--text-2xs); font-weight: 700; letter-spacing: 0.03em; border-radius: var(--radius-full); padding: 4px var(--space-2-5); }
.ins-pill--ai      { color: var(--color-brand-600); background: rgba(21,67,120,0.10); }
.ins-pill--product { color: var(--color-violet-600); background: rgba(21, 67, 120,0.12); }
.ins-pill--eng     { color: var(--color-brand-700); background: rgba(21,67,120,0.10); }
.ins-pill--growth  { color: #1f7a5c; background: rgba(31,122,92,0.12); }

/* ═══ EDITOR'S PICKS — horizontal snap showcase ═════════════════════════ */
.ins-picks { background: var(--color-bg); padding: var(--space-24) 0; overflow: hidden; }
.ins-picks .ins-sec-head { text-align: left; max-width: none; }
.ins-picks__scroller {
  display: flex; gap: var(--space-6); margin-top: var(--space-10);
  padding-inline: max((100vw - var(--container-xl)) / 2, var(--container-px));
  overflow-x: auto; scroll-snap-type: x mandatory;
  scrollbar-width: none; -webkit-overflow-scrolling: touch;
}
.ins-picks__scroller::-webkit-scrollbar { display: none; }
.ins-pick {
  flex: 0 0 clamp(280px, 42vw, 440px); scroll-snap-align: start; text-decoration: none;
  display: flex; flex-direction: column; overflow: hidden;
  background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-3xl);
  transition: transform 340ms var(--ease-out), box-shadow 340ms ease, border-color 340ms ease;
}
.ins-pick:hover { transform: translateY(-6px); border-color: rgba(21,67,120,0.24); box-shadow: 0 28px 56px rgba(21,67,120,0.14); }
.ins-pick__media { position: relative; overflow: hidden; aspect-ratio: 16 / 10; }
.ins-pick__img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform 600ms var(--ease-out); }
.ins-pick:hover .ins-pick__img { transform: scale(1.06); }
.ins-pick__body { display: flex; flex-direction: column; gap: var(--space-3); padding: var(--space-6) var(--space-7) var(--space-7); flex: 1; }
.ins-pick__meta { display: flex; align-items: center; gap: var(--space-3); }
.ins-pick__title { font-family: var(--font-display); font-size: var(--text-h5); font-weight: 700; line-height: 1.24; letter-spacing: -0.015em; color: var(--color-text-primary); flex: 1; }
.ins-pick__cta { display: inline-flex; align-items: center; gap: var(--space-1); font-size: var(--text-sm); font-weight: 700; color: var(--color-brand-500); }
.ins-pick__cta svg { transition: transform 200ms var(--ease-out); }
.ins-pick:hover .ins-pick__cta svg { transform: translateX(3px); }

/* ═══ CASE STUDIES — editorial split rows ═══════════════════════════════ */
.ins-cases { background: var(--color-bg-subtle); padding: var(--space-24) 0; }
.ins-cases__list { display: flex; flex-direction: column; gap: clamp(var(--space-12), 6vw, var(--space-20)); }
.ins-case {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(var(--space-8), 5vw, var(--space-16));
  align-items: center; text-decoration: none;
}
.ins-case--flip .ins-case__media { order: 2; }
.ins-case__media {
  position: relative; overflow: hidden; border-radius: var(--radius-3xl);
  border: 1px solid var(--color-border); box-shadow: 0 26px 60px rgba(21,67,120,0.12);
  aspect-ratio: 16 / 11;
}
.ins-case__img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: top center; transition: transform 600ms var(--ease-out); }
.ins-case:hover .ins-case__img { transform: scale(1.04); }
.ins-case__body { display: flex; flex-direction: column; gap: var(--space-3); }
.ins-case__cat { font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-brand-500); }
.ins-case__name { font-family: var(--font-display); font-size: clamp(1.5rem, 2.8vw, 2.25rem); font-weight: 800; line-height: 1.12; letter-spacing: -0.025em; color: var(--color-text-primary); }
.ins-case__tag { font-size: var(--text-body-lg); color: var(--color-text-tertiary); line-height: 1.7; max-width: 48ch; }
.ins-case__cta { margin-top: var(--space-2); display: inline-flex; align-items: center; gap: var(--space-2); font-size: var(--text-body-sm); font-weight: 700; color: var(--color-brand-500); transition: gap 220ms ease; }
.ins-case:hover .ins-case__cta { gap: var(--space-3); }
.ins-case:hover .ins-case__cta svg { transform: translateX(3px); }
.ins-cases__more { text-align: center; margin-top: clamp(var(--space-12), 6vw, var(--space-20)); }
.ins-cases__more .btn { display: inline-flex; align-items: center; gap: var(--space-2); }

/* ═══ METRICS strip (count-up) ══════════════════════════════════════════ */
.ins-metrics { background: var(--color-bg); padding: var(--space-16) 0; border-top: 1px solid var(--color-border); }
.ins-metrics__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-8); }
.ins-metric { text-align: center; }
.ins-metric__num { display: block; font-family: var(--font-display); font-size: clamp(2rem, 4vw, 2.75rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1; color: var(--color-brand-500); }
.ins-metric__label { display: block; margin-top: var(--space-3); font-size: var(--text-body-sm); color: var(--color-text-tertiary); }

/* ═══ TIMELINE — the archive, drawn while scrolling ═════════════════════ */
.ins-timeline { background: var(--color-bg-subtle); padding: var(--space-24) 0; }
.ins-tl { position: relative; max-width: 780px; margin: 0 auto; padding-left: var(--space-10); }
.ins-tl__rail { position: absolute; left: 5px; top: 6px; bottom: 6px; width: 2px; background: var(--color-border-strong); }
.ins-tl__rail-fill { position: absolute; inset: 0; background: var(--color-brand-500); transform: scaleY(0); transform-origin: top center; }
.ins-tl__list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-8); }
.ins-tl__link { position: relative; display: grid; grid-template-columns: auto 1fr; gap: var(--space-2) var(--space-5); align-items: baseline; text-decoration: none; padding-block: var(--space-1); }
.ins-tl__dot { position: absolute; left: calc(-1 * var(--space-10) + 1px); top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--color-bg); border: 2px solid var(--color-brand-500); transition: transform 240ms var(--ease-spring), background 240ms ease; }
.ins-tl__link:hover .ins-tl__dot { transform: scale(1.35); background: var(--color-brand-500); }
.ins-tl__date { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-text-tertiary); white-space: nowrap; grid-column: 1; }
.ins-tl__cat { grid-column: 1; }
.ins-tl__title { grid-column: 2; grid-row: 1 / span 2; font-family: var(--font-display); font-size: var(--text-h6); font-weight: 700; line-height: 1.3; letter-spacing: -0.01em; color: var(--color-text-primary); transition: color 200ms ease; }
.ins-tl__link:hover .ins-tl__title { color: var(--color-brand-600); }

/* ═══ NEWSLETTER — the one dark premium moment ══════════════════════════ */
.ins-news { position: relative; overflow: hidden; padding: clamp(var(--space-20), 9vw, var(--space-28)) 0; background: linear-gradient(160deg, #0b1c30 0%, #0c1f35 55%, #0f2a4e 100%); }
.ins-news__glow { position: absolute; inset: 0; pointer-events: none; background: radial-gradient(ellipse 60% 50% at 50% 40%, rgba(61, 107, 160, 0.35), transparent 70%); animation: insGlow 6s ease-in-out infinite; }
@keyframes insGlow { 0%, 100% { opacity: 0.6; transform: scale(1); } 50% { opacity: 1; transform: scale(1.08); } }
.ins-news__inner { position: relative; z-index: 1; max-width: 620px; margin: 0 auto; text-align: center; }
.ins-news__eyebrow { display: inline-block; font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: #6E93BE; margin-bottom: var(--space-4); }
.ins-news__title { font-family: var(--font-display); font-size: clamp(1.75rem, 3.4vw, 2.5rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.12; color: #fff; margin: 0 0 var(--space-3); }
.ins-news__sub { font-size: var(--text-body-lg); color: rgba(255,255,255,0.68); line-height: 1.6; margin: 0 0 var(--space-8); }
.ins-news__form { margin: 0 auto; max-width: 480px; }
.ins-news__field { display: flex; gap: var(--space-2); background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.16); border-radius: var(--radius-full); padding: 5px 5px 5px var(--space-5); transition: border-color 200ms ease, box-shadow 200ms ease; }
.ins-news__form:focus-within .ins-news__field { border-color: rgba(110,147,190,0.6); box-shadow: 0 0 0 4px rgba(61,107,160,0.18); }
.ins-news__form.is-error .ins-news__field { border-color: rgba(244,63,94,0.6); }
.ins-news__input { flex: 1; min-width: 0; background: transparent; border: none; outline: none; color: #fff; font-family: var(--font-body); font-size: var(--text-body-sm); }
.ins-news__input::placeholder { color: rgba(255,255,255,0.45); }
.ins-news__btn { flex-shrink: 0; }
.ins-news__msg { margin: var(--space-4) 0 0; font-size: var(--text-sm); font-weight: 600; color: #9fd6bf; }
.ins-news__form.is-error .ins-news__msg { color: #ff9db0; }
.ins-news__form.is-done .ins-news__field { border-color: rgba(52,211,153,0.5); animation: insPop 380ms var(--ease-spring); }
@keyframes insPop { 0% { transform: scale(1); } 40% { transform: scale(1.02); } 100% { transform: scale(1); } }

/* ═══ FINAL CTA — light editorial close ═════════════════════════════════ */
.ins-final { background: var(--color-bg); padding: clamp(var(--space-24), 10vw, var(--space-32)) 0; text-align: center; }
.ins-final__inner { max-width: 760px; margin: 0 auto; }
.ins-final__title { font-family: var(--font-display); font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; letter-spacing: -0.035em; line-height: 1.06; color: var(--color-text-primary); margin: 0 0 var(--space-4); }
.ins-final__sub { font-size: var(--text-body-lg); color: var(--color-text-tertiary); line-height: 1.7; margin: 0 0 var(--space-8); }
.ins-final__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); justify-content: center; }
.ins-final__actions .btn { display: inline-flex; align-items: center; gap: var(--space-2); }

/* ═══ SECTION HEADS ═════════════════════════════════════════════════════ */
.ins-sec-head { max-width: 640px; margin: 0 0 var(--space-12); }
.ins-sec-head .eyebrow { display: inline-block; margin-bottom: var(--space-3); }
.ins-sec-head__title { font-family: var(--font-display); font-size: clamp(1.75rem, 3.2vw, 2.5rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; color: var(--color-text-primary); margin: 0; }
.ins-sec-head__sub { font-size: var(--text-body-lg); color: var(--color-text-tertiary); line-height: 1.7; margin: var(--space-4) 0 0; }
.ins-sec-head--row { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-6); flex-wrap: wrap; max-width: none; }
.ins-sec-head--row .ins-sec-head__sub { margin: 0; }

/* ═══ ARTICLE VIEW (light) ══════════════════════════════════════════════ */
.ins-hero--article { padding-bottom: var(--space-12); }
.ins-hero__container--article { max-width: 780px; }
.ins-article__pill-wrap { margin-bottom: var(--space-5); }
.ins-hero--article .ins-pill { font-size: var(--text-xs); padding: 5px var(--space-3); }
.ins-article__headline { font-family: var(--font-display); font-size: clamp(1.9rem, 4vw, 3rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.03em; color: var(--color-brand-900, #0b2543); margin: 0 0 var(--space-5); }
.ins-article__lead { font-size: var(--text-body-lg); color: rgba(21, 34, 66, 0.66); line-height: 1.7; max-width: 62ch; margin: 0 0 var(--space-8); }
.ins-article__byline { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.ins-article__avatar { display: flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 50%; font-family: var(--font-display); font-weight: 800; color: #fff; background: linear-gradient(145deg, var(--color-brand-500), var(--color-brand-700)); box-shadow: 0 8px 20px rgba(21,67,120,0.24); }
.ins-article__by { display: flex; flex-direction: column; }
.ins-article__author { font-weight: 700; color: var(--color-text-primary); font-size: var(--text-body-sm); }
.ins-article__sub-meta { font-size: var(--text-xs); color: var(--color-text-tertiary); }
.ins-back { margin-left: auto; display: inline-flex; align-items: center; gap: var(--space-2); font-size: var(--text-sm); font-weight: 600; color: var(--color-brand-600); text-decoration: none; border: 1px solid var(--color-border-strong); border-radius: var(--radius-full); padding: var(--space-2) var(--space-4); transition: color 180ms ease, background 180ms ease, border-color 180ms ease; }
.ins-back:hover { color: var(--color-brand-700); background: var(--color-brand-50); border-color: var(--color-brand-600); }

/* Cover band bridging hero → body */
.ins-coverband { background: var(--color-bg); padding: 0; }
.ins-cover--hero { border-radius: var(--radius-2xl); aspect-ratio: 16 / 6.5; box-shadow: 0 30px 70px rgba(21,67,120,0.14); border: 1px solid var(--color-border); margin-top: calc(-1 * var(--space-8)); }
.ins-cover--hero .ins-cover__ph, .ins-cover--hero-img { width: 100%; height: 100%; aspect-ratio: auto; }
.ins-cover--hero .ins-cover__mono { width: 74px; height: 74px; }

/* Prose body */
.ins-article { background: var(--color-bg); padding: var(--space-16) 0 var(--space-20); }
.ins-article__inner { max-width: 720px; }
.ins-article__p { font-size: var(--text-body-lg); line-height: 1.85; color: var(--color-text-secondary); margin: 0 0 var(--space-6); }
.ins-article__h2 { font-family: var(--font-display); font-size: clamp(var(--text-h4), 2.6vw, 30px); font-weight: 800; letter-spacing: -0.02em; color: var(--color-text-primary); margin: var(--space-10) 0 var(--space-4); }
.ins-article__ul { list-style: none; margin: 0 0 var(--space-6); padding: 0; display: flex; flex-direction: column; gap: var(--space-3); }
.ins-article__ul li { display: flex; align-items: flex-start; gap: var(--space-3); font-size: var(--text-body); line-height: 1.7; color: var(--color-text-secondary); }
.ins-article__ul svg { flex-shrink: 0; margin-top: 3px; color: var(--color-brand-500); }
.ins-article__quote { position: relative; margin: var(--space-10) 0; padding: var(--space-6) var(--space-8); border-left: 3px solid var(--color-brand-500); background: var(--color-bg-subtle); border-radius: 0 var(--radius-xl) var(--radius-xl) 0; }
.ins-article__quote-mark { position: absolute; top: -14px; left: var(--space-6); color: var(--color-brand-300); opacity: 0.6; }
.ins-article__quote p { margin: 0; font-family: 'Instrument Serif', Georgia, serif; font-size: var(--text-h5); font-weight: 400; font-style: italic; line-height: 1.4; color: var(--color-text-primary); }

/* Share */
.ins-article__share { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; margin-top: var(--space-12); padding-top: var(--space-6); border-top: 1px solid var(--color-border); }
.ins-article__share-label { font-size: var(--text-body-sm); font-weight: 600; color: var(--color-text-secondary); }
.ins-share-btn { display: inline-flex; align-items: center; gap: var(--space-2); font-family: inherit; font-size: var(--text-sm); font-weight: 600; color: var(--color-brand-500); background: var(--color-brand-50); border: 1px solid rgba(21,67,120,0.16); border-radius: var(--radius-full); padding: var(--space-2) var(--space-4); cursor: pointer; transition: background 180ms ease, transform 180ms ease; }
.ins-share-btn:hover { transform: translateY(-1px); }
.ins-share-btn.is-copied { color: #1f7a5c; background: rgba(31,122,92,0.10); border-color: rgba(31,122,92,0.22); }

/* Related list on the article view */
.ins-list--related { background: var(--color-bg-subtle); padding: var(--space-20) 0; }
.ins-list__head { margin-bottom: var(--space-10); }
.ins-list__title { font-family: var(--font-display); font-size: clamp(1.5rem, 2.4vw, 2rem); font-weight: 800; letter-spacing: -0.02em; color: var(--color-text-primary); margin: 0; }
.ins-grid--related { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }

/* ═══ Responsive ════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .ins-masonry { columns: 2; }
  .ins-feat__card { grid-template-columns: 1fr; gap: var(--space-8); }
  .ins-case { grid-template-columns: 1fr; gap: var(--space-6); }
  .ins-case--flip .ins-case__media { order: 0; }
  .ins-metrics__grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-10) var(--space-6); }
  .ins-grid--related { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 767px) {
  .ins-hero { padding-bottom: var(--space-16); }
  .ins-hero__headline { font-size: clamp(2.1rem, 9vw, 3rem); }
  .ins-scroll { display: none; }
  .ins-feat { padding: var(--space-14) 0; }
  .ins-latest { padding: var(--space-12) 0 var(--space-16); }
  .ins-masonry { columns: 1; }
  .ins-picks, .ins-cases, .ins-timeline { padding: var(--space-16) 0; }
  .ins-filterbar__inner { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; }
  .ins-filterbar__inner::-webkit-scrollbar { display: none; }
  .ins-filter { flex-shrink: 0; }
  .ins-sec-head--row { align-items: flex-start; flex-direction: column; }
  .ins-metrics__grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .ins-grid--related { grid-template-columns: 1fr; }
  .ins-hero__actions .btn, .ins-final__actions .btn { flex: 1 1 auto; justify-content: center; }
  .ins-back { margin-left: 0; }
}

/* ═══ Reduced motion ════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  .ins-hero__particles::before, .ins-hero__particles::after,
  .ins-scroll__line::after, .ins-news__glow { animation: none; }
  .ins-tl__rail-fill { transform: scaleY(1) !important; }
  .ins-card:hover, .ins-pick:hover, .ins-feat__card:hover .ins-feat__img,
  .ins-case:hover .ins-case__img { transform: none; }
}