/* Polestar case-specific styles — extends styles.css */

/* Case meta header (back link + breadcrumb) */
.case-topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 10, 11, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.case-topbar__row {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 64px;
}
.case-topbar__back {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  transition: color 160ms ease, gap 200ms ease;
}
.case-topbar__back:hover { color: var(--gold); gap: 14px; }
.case-topbar__crumb {
  margin-left: auto;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.case-topbar__crumb .sep { color: var(--gold); margin: 0 10px; opacity: 0.6; }
.case-topbar__crumb--study {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  line-height: 1;
}
.case-topbar__study {
  font-size: 9px;
  letter-spacing: 0.24em;
  color: var(--ink-dim);
  opacity: 0.55;
}
.case-topbar__study .sep { color: var(--gold); margin: 0 6px; opacity: 0.5; }
.case-topbar__crumb-main {
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--ink-dim);
}
@media (max-width: 640px) {
  .case-topbar__study { font-size: 8.5px; letter-spacing: 0.18em; }
}

/* ============ CASE HERO ============ */
.case-hero {
  position: relative;
  height: 100vh;
  min-height: 720px;
  max-height: 980px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}
.case-hero__bg {
  position: absolute;
  inset: 0;
}
.case-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}
.case-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.0) 22%, rgba(0,0,0,0.0) 50%, rgba(0,0,0,0.55) 80%, rgba(0,0,0,0.92) 100%);
}
.case-hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 0 28px 80px;
}
.case-hero__meta {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-bottom: 32px;
}
.case-hero__meta .dot { color: var(--gold); opacity: 0.5; }
.case-hero__title {
  font-size: clamp(44px, 6vw, 96px);
  line-height: 1.0;
  letter-spacing: -0.025em;
  font-weight: 400;
  margin: 0;
  max-width: 16ch;
  text-wrap: balance;
}
.case-hero__title em {
  font-style: italic;
  color: var(--gold);
  font-weight: 400;
}
.case-hero__sub {
  margin-top: 28px;
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-muted);
  max-width: 520px;
}
.case-hero__sub strong { color: var(--gold); font-weight: 500; }
.case-hero__scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ink-dim);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  z-index: 2;
}
.case-hero__scroll-line {
  width: 1px;
  height: 36px;
  background: linear-gradient(180deg, var(--gold), transparent);
  animation: scrollPulse 2.4s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.2); }
}

/* ============ SECTION SHELL ============ */
.case-section {
  padding: 120px 0;
  position: relative;
}
.case-section--tight { padding: 80px 0; }
.case-section--media { padding: 100px 0; }
.case-section__index {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}
.case-section__index .num { color: var(--ink-dim); margin-right: 12px; }
.case-section__title {
  font-size: clamp(34px, 4vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 400;
  margin: 0 0 36px;
  max-width: 18ch;
  text-wrap: balance;
}
.case-section__title em { font-style: italic; color: var(--gold); font-weight: 400; }
.case-section__intro {
  font-size: 19px;
  line-height: 1.6;
  color: var(--ink-muted);
  max-width: 60ch;
  margin: 0;
  font-weight: 300;
}

/* ============ BRIEFING ORIGINAL (pull quotes) ============ */
.brief {
  border-top: 1px solid var(--line);
}
.brief__grid {
  display: grid;
  grid-template-columns: minmax(0, 380px) 1fr;
  gap: 64px;
  align-items: start;
}
.brief__head {
  position: sticky;
  top: 100px;
}
.brief__quotes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.brief__quote {
  padding: 32px 28px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255,255,255,0.012), transparent);
  position: relative;
  font-size: 18px;
  font-weight: 300;
  line-height: 1.4;
  color: var(--ink);
  letter-spacing: -0.005em;
  min-height: 140px;
  display: flex;
  align-items: flex-end;
}
.brief__quote::before {
  content: attr(data-num);
  position: absolute;
  top: 18px;
  left: 28px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--ink-dim);
}
.brief__quote em { font-style: italic; color: var(--gold); font-weight: 300; }

/* ============ BEFORE / AFTER VISUAL SECTIONS ============ */
.case-visual {
  border-top: 1px solid var(--line);
}
.case-visual__grid {
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  gap: 72px;
  align-items: center;
}
.case-visual__grid--reverse { grid-template-columns: 0.85fr 1fr; }
.case-visual__grid--reverse .case-visual__media { order: 2; }
.case-visual__grid--reverse .case-visual__copy { order: 1; }

.case-visual__media {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 9 / 16;
  background: #000;
}
.case-visual__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.case-visual__media-caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 18px 22px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.8));
}
.case-visual__media-caption .tag {
  color: var(--gold);
  margin-right: 10px;
}

.case-visual__copy {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.case-visual__kicker {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-dim);
  display: flex;
  align-items: center;
  gap: 14px;
}
.case-visual__kicker::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--gold);
}
.case-visual__kicker--before { color: var(--ink-dim); }
.case-visual__kicker--after { color: var(--gold); }
.case-visual__title {
  font-size: clamp(34px, 4.2vw, 60px);
  line-height: 1.0;
  letter-spacing: -0.025em;
  font-weight: 400;
  margin: 0;
  text-wrap: balance;
}
.case-visual__title em { font-style: italic; color: var(--gold); font-weight: 400; }
.case-visual__text {
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink-muted);
  margin: 0;
  max-width: 48ch;
  font-weight: 300;
}

/* ============ SEMANTIC COLLISION (pyramids — pivotal moment) ============ */
.collision__title .tm {
  font-family: "Outfit", "Helvetica Neue", sans-serif;
  font-size: 0.28em;
  font-style: normal;
  font-weight: 400;
  vertical-align: super;
  color: var(--ink-muted);
  margin-left: 4px;
  letter-spacing: 0.02em;
  opacity: 0.75;
}
.collision {
  border-top: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.collision::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 1px;
  background: var(--gold);
}
.collision__lead {
  text-align: center;
  margin-bottom: 80px;
}
.collision__index {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold);
  margin-top: 28px;
}
.collision__title {
  font-size: clamp(48px, 6.2vw, 96px);
  line-height: 1.0;
  letter-spacing: -0.03em;
  font-weight: 400;
  margin: 36px 0 0;
  font-style: italic;
}
.collision__title .ampersand {
  color: var(--gold);
}
.collision__sub {
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-muted);
  max-width: 56ch;
  margin: 28px auto 0;
  font-weight: 300;
}
.collision__sub em { color: var(--gold); font-style: italic; font-weight: 400; }

.collision__pivot {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 80px;
  align-items: center;
  margin-top: 24px;
}
.collision__image {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 16 / 11;
}
.collision__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.05) brightness(0.92);
}
.collision__image-frame {
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(255,255,255,0.08);
  pointer-events: none;
}
.collision__image-tag {
  position: absolute;
  top: 28px;
  left: 28px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 9px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.8);
  background: rgba(0,0,0,0.5);
  border: 1px solid rgba(255,255,255,0.18);
  padding: 7px 12px;
  border-radius: 999px;
  backdrop-filter: blur(8px);
}
.collision__image-tag::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold);
  margin-right: 8px;
  vertical-align: middle;
}

.collision__copy {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.collision__copy h3 {
  font-size: 22px;
  font-weight: 500;
  margin: 0 0 6px;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.collision__copy p {
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-muted);
  margin: 0;
  max-width: 46ch;
  font-weight: 300;
}
.collision__copy p strong { color: var(--ink); font-weight: 500; }
.collision__copy p em { color: var(--gold); font-style: italic; font-weight: 400; }

.collision__chain {
  margin-top: 96px;
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: stretch;
  gap: 24px;
  padding-top: 56px;
  border-top: 1px solid var(--line);
}
.collision__node {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 0 4px;
}
.collision__node-label {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.collision__node--pivot .collision__node-label { color: var(--gold); }
.collision__node-text {
  font-size: 16px;
  font-weight: 400;
  line-height: 1.35;
  color: var(--ink);
  letter-spacing: -0.005em;
}
.collision__node--pivot .collision__node-text {
  color: var(--gold);
  font-style: italic;
}
.collision__arrow {
  display: flex;
  align-items: center;
  color: var(--gold);
  opacity: 0.7;
}

/* ============ VIDEO ============ */
.case-video {
  border-top: 1px solid var(--line);
}
.case-video__lead {
  text-align: center;
  margin-bottom: 48px;
}
.case-video__lead .case-section__index { justify-content: center; }
.case-video__shell {
  position: relative;
  margin: 0 auto;
  max-width: 420px;
  aspect-ratio: 9 / 16;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  box-shadow: 0 50px 100px -40px oklch(0.78 0.14 65 / 0.25);
  background: #000;
}
.case-video__shell iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}
.case-video__player {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  background: #000;
}
.case-video__player::-webkit-media-controls-panel {
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.7));
}
.case-video__caption {
  margin-top: 24px;
  text-align: center;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.case-video__caption a { color: var(--gold); border-bottom: 1px solid var(--gold-line); padding-bottom: 2px; }

/* ============ WHAT CHANGED ============ */
.changes {
  border-top: 1px solid var(--line);
}
.changes__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: flex-start;
}
.changes__lede {
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.015em;
  font-weight: 300;
  margin: 0;
  color: var(--ink);
}
.changes__lede em { font-style: italic; color: var(--gold); font-weight: 400; }

.changes__list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.changes__list li {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.changes__list li:first-child { padding-top: 0; }
.changes__list li:last-child { border-bottom: none; }
.changes__list .index {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--gold);
}
.changes__list .label {
  font-size: 19px;
  line-height: 1.4;
  color: var(--ink);
  font-weight: 400;
  letter-spacing: -0.005em;
}
.changes__list .label .muted { color: var(--ink-muted); font-weight: 300; }

/* ============ CASE FINAL CTA ============ */
.case-cta {
  border-top: 1px solid var(--line);
  padding: 140px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.case-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 80% at 50% 100%, oklch(0.78 0.14 65 / 0.08), transparent 70%);
  pointer-events: none;
}
.case-cta__inner { position: relative; z-index: 2; max-width: 720px; margin: 0 auto; }
.case-cta__eyebrow {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 28px;
  display: inline-block;
}
.case-cta__title {
  font-size: clamp(40px, 5vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  font-weight: 400;
  margin: 0 0 24px;
  text-wrap: balance;
}
.case-cta__title em { font-style: italic; color: var(--gold); font-weight: 400; }
.case-cta__sub {
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-muted);
  margin: 0 auto 48px;
  max-width: 50ch;
  font-weight: 300;
}
.case-cta__btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 22px 36px;
  background: var(--gold);
  color: #1a0e00;
  border-radius: 14px;
  font-weight: 500;
  font-size: 16px;
  letter-spacing: 0.02em;
  transition: transform 180ms ease, box-shadow 200ms ease, background 180ms ease;
}
.case-cta__btn:hover {
  background: var(--gold-2);
  transform: translateY(-2px);
  box-shadow: 0 18px 40px -16px oklch(0.78 0.14 65 / 0.5);
}
.case-cta__note {
  margin-top: 22px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

/* ============ HUMAN DECISION (C1/C2/C3 routes) ============ */
.human-decision {
  border-top: 1px solid var(--line);
}
.human-decision .case-section__title { max-width: 22ch; }
.routes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 56px;
}
.route {
  position: relative;
  padding: 32px 28px 36px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255,255,255,0.012), transparent);
  display: flex;
  flex-direction: column;
  gap: 22px;
  min-height: 200px;
  transition: border-color 200ms ease, background 200ms ease;
}
.route--ghost { opacity: 0.55; }
.route--ghost:hover { opacity: 0.8; }
.route--chosen {
  border-color: var(--gold-line);
  background: linear-gradient(180deg, oklch(0.78 0.14 65 / 0.05), transparent 70%);
  box-shadow: 0 0 0 1px var(--gold-line), 0 30px 60px -30px oklch(0.78 0.14 65 / 0.4);
}
.route--chosen::after {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 64px;
  height: 2px;
  background: var(--gold);
  border-radius: 0 0 4px 4px;
}
.route__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}
.route__id {
  font-size: 28px;
  letter-spacing: 0.04em;
  color: var(--ink);
  font-family: "Outfit", sans-serif;
  font-weight: 300;
}
.route--chosen .route__id { color: var(--gold); font-weight: 400; }
.route__note { color: var(--ink-dim); }
.route--chosen .route__note { color: var(--gold); }
.route__label {
  font-size: 20px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
  font-weight: 400;
  margin-top: auto;
}
.route--chosen .route__label { color: var(--ink); font-style: italic; font-weight: 400; }

.human-decision__why {
  margin: 48px auto 0;
  max-width: 60ch;
  padding: 24px 28px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-muted);
  font-weight: 300;
  text-align: center;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.human-decision__why em { color: var(--gold); font-style: italic; font-weight: 400; }
.human-decision__why-tag {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold);
}
.human-decision__why-body { display: block; }

/* ============ TRANSFORMATION (split screen) ============ */
.transformation {
  border-top: 1px solid var(--line);
}
.transformation .case-section__title { max-width: 22ch; }
.split {
  margin-top: 64px;
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  gap: 0;
  position: relative;
}
.split__side {
  position: relative;
  aspect-ratio: 9 / 16;
  overflow: hidden;
  background: #000;
}
.split__side img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.split__side--before img { filter: grayscale(0.15) brightness(0.92); }
.split__side--after img { filter: contrast(1.04); }
.split__divider {
  background: linear-gradient(180deg, transparent, var(--gold-line) 20%, var(--gold-line) 80%, transparent);
  width: 1px;
  position: relative;
  z-index: 2;
}
.split__divider::before,
.split__divider::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  transform: translateX(-50%);
}
.split__divider::before { top: -1px; }
.split__divider::after { bottom: -1px; }

.split__label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.85));
  color: #fff;
}
.split__label--right { text-align: right; align-items: flex-end; }
.split__tag {
  display: inline-block;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  padding: 6px 12px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  color: rgba(255,255,255,0.85);
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(6px);
}
.split__tag--gold {
  color: var(--gold);
  border-color: var(--gold-line);
  background: oklch(0.78 0.14 65 / 0.1);
}
.split__caption {
  font-size: 18px;
  font-weight: 400;
  letter-spacing: -0.005em;
  color: rgba(255,255,255,0.92);
}
.split__side--after .split__caption { color: #fff; }

/* ============ WHY MATTERS ============ */
.why-matters {
  border-top: 1px solid var(--line);
}
.why-matters__head { margin-bottom: 64px; }
.why-matters__head .case-section__title { max-width: 24ch; }
.why-matters__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}
.why-matters__list li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 24px;
  padding: 36px 32px 36px 0;
  border-top: 1px solid var(--line);
}
.why-matters__list li:nth-child(2n) { padding-left: 32px; padding-right: 0; border-left: 1px solid var(--line); }
.why-matters__list li:nth-last-child(-n+2) { padding-bottom: 0; }
.why-matters__num {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--gold);
  padding-top: 4px;
}
.why-matters__copy h3 {
  font-size: 22px;
  font-weight: 500;
  margin: 0 0 10px;
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1.25;
}
.why-matters__copy p {
  margin: 0;
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink-muted);
  font-weight: 300;
  max-width: 38ch;
}

/* ============ STICKY FLOATING CTA ============ */
.sticky-cta {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 60;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 22px;
  background: rgba(15, 15, 17, 0.92);
  border: 1px solid var(--gold-line);
  border-radius: 999px;
  color: var(--gold);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 18px 50px -16px oklch(0.78 0.14 65 / 0.3), 0 0 0 1px oklch(0.78 0.14 65 / 0.05) inset;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: opacity 320ms ease, transform 320ms ease, background 200ms ease, box-shadow 200ms ease, color 200ms ease;
}
.sticky-cta.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.sticky-cta:hover {
  background: var(--gold);
  color: #1a0e00;
  box-shadow: 0 22px 60px -16px oklch(0.78 0.14 65 / 0.5);
}
.sticky-cta:hover .sticky-cta__pulse { background: #1a0e00; box-shadow: none; }
.sticky-cta__pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  flex-shrink: 0;
  animation: stickyPulse 2s ease-in-out infinite;
}
@keyframes stickyPulse {
  0%, 100% { box-shadow: 0 0 0 0 oklch(0.78 0.14 65 / 0.6); }
  50% { box-shadow: 0 0 0 6px oklch(0.78 0.14 65 / 0); }
}

/* ============ DISCLAIMER ============ */
.case-cta__disclaimer {
  margin-top: 56px;
  font-size: 11px;
  font-style: italic;
  letter-spacing: 0.04em;
  color: var(--ink-dim);
  opacity: 0.7;
  max-width: 60ch;
  margin-left: auto;
  margin-right: auto;
}

/* ============ RESPONSIVE (new sections) ============ */
@media (max-width: 960px) {
  .routes { grid-template-columns: 1fr; gap: 14px; }
  .route { min-height: auto; padding: 24px 22px 28px; }
  .why-matters__list { grid-template-columns: 1fr; }
  .why-matters__list li:nth-child(2n) { padding-left: 0; border-left: none; }
  .why-matters__list li:last-child { padding-bottom: 0; }
}

@media (max-width: 760px) {
  .split { grid-template-columns: 1fr; }
  .split__divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold-line) 20%, var(--gold-line) 80%, transparent);
  }
  .split__divider::before { top: 50%; left: -1px; transform: translateY(-50%); }
  .split__divider::after { top: 50%; right: -1px; left: auto; bottom: auto; transform: translateY(-50%); }
  .split__label { padding: 24px 22px; }
  .split__caption { font-size: 16px; }
  .why-matters__list li { grid-template-columns: 40px 1fr; gap: 16px; padding: 28px 0; }
  .why-matters__copy h3 { font-size: 19px; }
  .sticky-cta {
    right: 16px;
    bottom: 16px;
    padding: 14px 18px;
    font-size: 13px;
  }
  .sticky-cta__text { max-width: 9rem; }
  .human-decision__why { padding: 20px 16px; font-size: 15px; }
}

/* ============ CASE-TO-CASE NAV ============ */
.case-nav {
  border-top: 1px solid var(--line);
  padding: 56px 0;
  background: linear-gradient(180deg, transparent, oklch(0.78 0.14 65 / 0.02));
}
.case-nav__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.case-nav__label {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.case-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  color: var(--ink);
  transition: color 200ms ease, gap 200ms ease;
}
.case-nav__link:hover { color: var(--gold); gap: 22px; }
.case-nav__title {
  font-size: clamp(20px, 2vw, 28px);
  font-weight: 400;
  letter-spacing: -0.015em;
  font-style: italic;
}

@media (max-width: 760px) {
  .case-nav { padding: 40px 0; }
  .case-nav__row { flex-direction: column; align-items: flex-start; gap: 16px; }
  .case-nav__title { font-size: 20px; }
}

/* ============ END NEW SECTIONS ============ */
@media (max-width: 960px) {
  .brief__grid { grid-template-columns: 1fr; gap: 40px; }
  .brief__head { position: static; }
  .brief__quotes { grid-template-columns: 1fr 1fr; }
  .case-visual__grid,
  .case-visual__grid--reverse { grid-template-columns: 1fr; gap: 40px; }
  .case-visual__grid--reverse .case-visual__media,
  .case-visual__grid--reverse .case-visual__copy { order: initial; }
  .collision__pivot { grid-template-columns: 1fr; gap: 40px; }
  .collision__chain {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .collision__arrow { transform: rotate(90deg); justify-self: center; }
  .changes__grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 760px) {
  .case-hero { min-height: 600px; }
  .case-hero__content { padding-bottom: 48px; }
  .case-hero__bg img { object-position: center 25%; }
  .case-section { padding: 72px 0; }
  .case-section--tight { padding: 56px 0; }
  .case-section__title { font-size: 30px; }
  .brief__quotes { grid-template-columns: 1fr; gap: 10px; }
  .brief__quote {
    padding: 14px 16px;
    min-height: 0;
    font-size: 15px;
    line-height: 1.35;
    display: block;
    border-radius: 10px;
  }
  .brief__quote::before {
    position: static;
    display: block;
    margin-bottom: 6px;
    font-size: 9px;
  }
  .case-visual__title { font-size: 30px; }
  .collision__title { font-size: 38px; }
  .changes__lede { font-size: 24px; }
  .changes__list li { grid-template-columns: 36px 1fr; gap: 14px; padding: 20px 0; }
  .changes__list .label { font-size: 17px; }
  .case-cta { padding: 88px 0; }
  .case-cta__title { font-size: 34px; }
  .case-cta__btn { width: 100%; justify-content: center; padding: 18px 24px; }
}