/* ════════════════════════════════════════════════════
   CASE STUDIES PAGE — page-specific styles
   Loads after homepage.css (shared design system)
   ════════════════════════════════════════════════════ */

/* ─── HERO ─── */
.cases-hero {
  position: relative;
  padding: 70px 0 50px;
  background: var(--paper);
  overflow: hidden;
}
.cases-hero__grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--rule) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule) 1px, transparent 1px);
  background-size: 80px 80px;
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 80% 30%, black 30%, transparent 85%);
          mask-image: radial-gradient(ellipse 70% 80% at 80% 30%, black 30%, transparent 85%);
  opacity: .55;
  z-index: 1;
  pointer-events: none;
}
.cases-hero__wrap { position: relative; z-index: 2; }

.cases-hero__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: start;
}
.cases-hero__index {
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding-top: 18px;
  min-width: 56px;
}
.cases-hero__eyebrow { display: block; margin-bottom: 18px; }
.cases-hero__h1 {
  font-size: clamp(44px, 6.6vw, 96px);
  line-height: .96;
  margin: 0 0 24px;
  font-weight: 400;
  letter-spacing: -0.035em;
  color: var(--ink);
}
.cases-hero__h1 em {
  font-weight: 300;
  color: var(--teal);
  font-style: italic;
  position: relative;
  display: inline-block;
}
.cases-hero__h1-underline {
  position: absolute;
  left: 0; bottom: -4px;
  width: 100%;
  height: 14px;
  color: var(--gold);
}
.cases-hero__intro {
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 680px;
  margin: 0;
}
.cases-hero__intro em { color: var(--teal); font-style: italic; }

/* Aggregate stats strip */
.cases-agg {
  margin-top: 64px;
  padding: 28px 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.cases-agg__item {
  padding: 4px 18px;
  border-right: 1px solid var(--rule);
}
.cases-agg__item:last-child { border-right: none; }
.cases-agg__num {
  font-size: clamp(26px, 2.4vw, 34px);
  font-weight: 400;
  color: var(--teal);
  line-height: 1.1;
  letter-spacing: -0.025em;
}
.cases-agg__label {
  font-size: 10.5px;
  opacity: .55;
  margin-top: 8px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ─── INDEX (3 quick-nav cards) ─── */
.cases-index-band {
  padding: 70px 0 40px;
  background: var(--paper);
}
.cases-index-band__label {
  font-size: 11px;
  color: var(--gold-2);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.cases-index {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--rule);
}
.cases-index__card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 30px 30px 30px 0;
  border-bottom: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
  transition: background .2s;
}
.cases-index__card:last-child { border-right: none; }
.cases-index__card:not(:first-child) { padding-left: 30px; }
.cases-index__card:hover { background: var(--cream); }
.cases-index__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.cases-index__no {
  font-size: 11px;
  color: var(--gold-2);
  letter-spacing: 0.2em;
}
.cases-index__loc {
  font-size: 10px;
  color: var(--ink-2);
  opacity: .55;
  letter-spacing: 0.14em;
}
.cases-index__industry {
  font-size: 24px;
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.cases-index__stat {
  font-size: clamp(34px, 3.4vw, 46px);
  line-height: 1;
  font-weight: 400;
  color: var(--teal);
  letter-spacing: -0.03em;
}
.cases-index__stat-label {
  font-size: 11px;
  color: var(--ink-2);
  opacity: .65;
  letter-spacing: 0.08em;
}
.cases-index__cta {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--teal);
  font-weight: 500;
  padding-top: 8px;
}
.cases-index__cta-icon {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--teal);
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
}

/* ─── CASE STUDY SPREAD ─── */
.case-spread {
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}
.case-spread--light {
  background: var(--paper);
  color: var(--ink);
  border-top: 1px solid var(--rule);
}
.case-spread--dark {
  background: var(--teal);
  color: var(--cream);
  border-top: 1px solid rgba(244,239,230,.1);
}
.case-spread__bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 0%, rgba(231,177,63,.08), transparent 40%),
    radial-gradient(circle at 85% 100%, rgba(231,177,63,.05), transparent 40%);
  pointer-events: none;
}
.case-spread__wrap { position: relative; z-index: 2; }

/* Header */
.case-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: start;
  margin-bottom: 50px;
}
.case-head__index {
  font-size: 11px;
  letter-spacing: 0.22em;
  padding-top: 18px;
  min-width: 56px;
  color: var(--gold-2);
}
.case-spread--dark .case-head__index { color: var(--gold); }

.case-pills {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
.case-pill {
  display: inline-block;
  padding: 7px 14px;
  background: var(--teal);
  color: var(--cream);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  letter-spacing: 0.2em;
  border-radius: 99px;
}
.case-spread--dark .case-pill {
  background: rgba(231,177,63,.15);
  color: var(--gold);
}
.case-pill-meta {
  font-size: 11px;
  opacity: .6;
  letter-spacing: 0.14em;
}

.case-headline {
  font-size: clamp(40px, 5.4vw, 78px);
  line-height: 1.02;
  margin: 0;
  font-weight: 400;
  letter-spacing: -0.035em;
}
.case-headline em {
  font-weight: 300;
  font-style: italic;
  color: var(--teal);
}
.case-spread--dark .case-headline em { color: var(--gold); }
.case-headline__tail {
  font-size: 0.42em;
  vertical-align: middle;
  margin-left: 14px;
  opacity: .65;
  font-style: normal;
  font-weight: 400;
}

.case-summary {
  font-size: 19px;
  line-height: 1.55;
  max-width: 720px;
  color: var(--ink-2);
  margin: 24px 0 0;
}
.case-spread--dark .case-summary { color: rgba(244,239,230,.78); }

/* Metrics strip (4-col) */
.case-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 10px 0 70px;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 24px 0;
}
.case-spread--dark .case-metrics {
  border-color: rgba(244,239,230,.14);
}
.case-metric {
  padding: 4px 22px;
  border-right: 1px solid var(--rule);
}
.case-spread--dark .case-metric { border-right-color: rgba(244,239,230,.14); }
.case-metric:last-child { border-right: none; }
.case-metric__num {
  font-size: clamp(28px, 2.8vw, 40px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.025em;
  color: var(--teal);
}
.case-spread--dark .case-metric__num { color: var(--gold); }
.case-metric__label {
  font-size: 10.5px;
  margin-top: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
  opacity: .65;
}
.case-spread--dark .case-metric__label {
  color: rgba(244,239,230,.6);
  opacity: 1;
}

/* Challenge + Side info */
.case-col2 {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
  align-items: start;
  margin-bottom: 80px;
}
.case-mono-label {
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: var(--gold-2);
  margin-bottom: 18px;
}
.case-spread--dark .case-mono-label { color: var(--gold); }

.case-section-title {
  font-size: clamp(26px, 2.6vw, 34px);
  margin: 0 0 22px;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.case-challenge {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 640px;
}
.case-challenge p {
  font-size: 16.5px;
  line-height: 1.65;
  margin: 0;
  color: var(--ink-2);
}
.case-spread--dark .case-challenge p { color: rgba(244,239,230,.85); }

.case-side {
  padding: 28px;
  background: var(--cream);
  border: 1px solid var(--rule);
  border-radius: 18px;
  position: sticky;
  top: 100px;
}
.case-spread--dark .case-side {
  background: rgba(244,239,230,.06);
  border-color: rgba(244,239,230,.12);
}
.case-side ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.case-side li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  font-size: 14.5px;
}
.case-side__star { color: var(--gold-2); }
.case-spread--dark .case-side__star { color: var(--gold); }
.case-side__divider {
  height: 1px;
  background: var(--rule);
  margin: 22px 0 18px;
}
.case-spread--dark .case-side__divider { background: rgba(244,239,230,.12); }
.case-side__value {
  font-size: 14.5px;
}

/* Strategy — numbered rows */
.case-strategy { margin-bottom: 80px; }
.case-strategy__list {
  border-top: 1px solid var(--rule);
}
.case-spread--dark .case-strategy__list { border-top-color: rgba(244,239,230,.14); }
.case-strategy-row {
  display: grid;
  grid-template-columns: auto 1fr 2fr;
  gap: 40px;
  padding: 28px 0;
  border-bottom: 1px solid var(--rule);
  align-items: start;
}
.case-spread--dark .case-strategy-row { border-bottom-color: rgba(244,239,230,.14); }
.case-strategy__num {
  font-size: 30px;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--teal);
  line-height: 1;
}
.case-spread--dark .case-strategy__num { color: var(--gold); }
.case-strategy__title {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.005em;
}
.case-strategy__desc {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--ink-2);
}
.case-spread--dark .case-strategy__desc { color: rgba(244,239,230,.78); }

/* Result + Quote */
.case-result-row {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 60px;
  align-items: start;
}
.case-result__h3 {
  font-size: clamp(30px, 3.2vw, 44px);
  margin: 0 0 24px;
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.1;
}
.case-result__p {
  font-size: 17px;
  line-height: 1.65;
  margin: 0;
  color: var(--ink-2);
}
.case-spread--dark .case-result__p { color: rgba(244,239,230,.85); }

.case-quote {
  margin: 0;
  padding: 32px 30px;
  background: var(--cream);
  border: 1px solid var(--rule);
  border-radius: 18px;
  position: relative;
}
.case-spread--dark .case-quote {
  background: rgba(231,177,63,.08);
  border-color: rgba(231,177,63,.3);
}
.case-quote__open {
  font-size: 34px;
  color: var(--teal);
  line-height: 0;
  margin-bottom: 8px;
  font-family: 'Fraunces', serif;
}
.case-spread--dark .case-quote__open { color: var(--gold); }
.case-quote blockquote {
  margin: 0;
  font-size: 18px;
  line-height: 1.5;
  font-weight: 400;
  letter-spacing: -0.005em;
  color: var(--ink);
}
.case-spread--dark .case-quote blockquote { color: var(--cream); }
.case-quote figcaption {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
  display: flex;
  gap: 12px;
  align-items: center;
}
.case-spread--dark .case-quote figcaption {
  border-top-color: rgba(244,239,230,.12);
}
.case-quote__avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--teal);
  color: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Fraunces', serif;
  font-size: 16px;
  font-weight: 500;
  flex-shrink: 0;
}
.case-spread--dark .case-quote__avatar {
  background: var(--gold);
  color: var(--teal-ink);
}
.case-quote__author { font-size: 13px; font-weight: 600; }
.case-quote__org {
  font-size: 10px;
  opacity: .65;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 2px;
}

/* Footer of spread */
.case-foot {
  margin-top: 80px;
  padding-top: 36px;
  border-top: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.case-spread--dark .case-foot { border-top-color: rgba(244,239,230,.14); }
.case-foot__cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--teal);
  color: var(--cream);
  padding: 16px 24px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 500;
  transition: background .15s, transform .12s;
}
.case-foot__cta:hover { transform: translateY(-1px); }
.case-foot__cta:active { transform: translateY(1px); }
.case-spread--dark .case-foot__cta { background: var(--gold); color: var(--teal-ink); }
.case-foot__cta-icon {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--teal-ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  flex-shrink: 0;
}
.case-spread--dark .case-foot__cta-icon {
  background: var(--teal-ink);
  color: var(--gold);
}
.case-foot__next {
  display: inline-flex;
  align-items: baseline;
  gap: 14px;
  font-size: 13px;
  color: var(--ink-2);
}
.case-spread--dark .case-foot__next { color: rgba(244,239,230,.85); }
.case-foot__next-label {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--gold-2);
}
.case-spread--dark .case-foot__next-label { color: var(--gold); }
.case-foot__next-name {
  font-size: 18px;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid var(--teal);
  padding-bottom: 1px;
}
.case-spread--dark .case-foot__next-name {
  color: var(--cream);
  border-bottom-color: var(--gold);
}

/* ─── CLOSING CTA ─── */
.cases-closing {
  padding: 110px 0 120px;
  background: var(--cream);
  border-top: 1px solid var(--rule);
}
.cases-closing__inner { text-align: center; }
.cases-closing .eyebrow { display: inline-block; margin-bottom: 22px; }
.cases-closing__title {
  font-size: clamp(38px, 5.4vw, 76px);
  margin: 0 auto 24px;
  max-width: 880px;
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.05;
}
.cases-closing__title em {
  font-weight: 300;
  color: var(--teal);
  font-style: italic;
}
.cases-closing__sub {
  font-size: 18px;
  color: var(--ink-2);
  max-width: 580px;
  margin: 0 auto 36px;
  line-height: 1.55;
}
.cases-closing__note {
  font-size: 12px;
  opacity: .55;
  margin-top: 22px;
  letter-spacing: 0.08em;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 960px) {
  .cases-index { grid-template-columns: 1fr; }
  .cases-index__card {
    padding-left: 0 !important;
    padding-right: 0 !important;
    border-right: none;
  }
}

@media (max-width: 900px) {
  .case-head { grid-template-columns: 1fr; gap: 14px; }
  .case-col2 { grid-template-columns: 1fr; gap: 30px; }
  .case-side { position: static; }
  .case-result-row { grid-template-columns: 1fr; gap: 30px; }
  .case-strategy-row { grid-template-columns: auto 1fr; gap: 16px; }
  .case-strategy__desc { grid-column: 1 / -1; }
  .case-metrics { grid-template-columns: 1fr 1fr; }
  .case-metric:nth-child(2n) { border-right: none; }
  .case-metric { padding: 14px 16px; }
  .case-metric:nth-child(-n+2) { border-bottom: 1px solid var(--rule); }
  .case-spread--dark .case-metric:nth-child(-n+2) { border-bottom-color: rgba(244,239,230,.14); }
}

@media (max-width: 760px) {
  .cases-agg { grid-template-columns: 1fr 1fr; }
  .cases-agg__item:nth-child(2n) { border-right: none; }
  .cases-agg__item {
    border-bottom: 1px solid var(--rule);
    padding: 14px 14px;
  }
  .cases-agg__item:nth-child(n+3) { border-bottom: none; }
}

@media (max-width: 768px) {
  .cases-hero { padding: 50px 0 30px; }
  .case-spread { padding: 70px 0; }
  .case-col2 { margin-bottom: 50px !important; }
  .case-strategy { margin-bottom: 50px !important; }
  .case-foot { margin-top: 50px; }
  .case-foot__cta { font-size: 13px; padding: 14px 18px; }
  .case-foot__next-name { font-size: 15px; }
  .cases-closing { padding: 70px 0; }
}

@media (max-width: 600px) {
  .case-headline br { display: none; }
  .case-headline__tail { display: block; font-size: 0.32em; margin-left: 0; margin-top: 8px; }
}