/* ========================================================================
   Works (Case Study) Page Styles — Whitepaper / Editorial
   ======================================================================== */

/* --- Document header --------------------------------------------------- */
.case-doc-header {
  border-top: 1px solid var(--color-outline-ash);
  border-bottom: 1px solid var(--color-outline-ash);
  padding-block: var(--spacing-24);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--color-steel-accent);
  font-feature-settings: "tnum" 1;
}

.case-doc-header__inner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-24);
  justify-content: space-between;
}

.case-doc-header__inner span strong {
  color: var(--color-graphite-text);
  font-weight: var(--font-weight-medium);
  margin-left: 6px;
}

/* --- Case hero (image hero) ------------------------------------------- */
.case-hero {
  position: relative;
  min-height: 560px;
  background: var(--color-navy-deep);
  color: var(--color-canvas-white);
  overflow: hidden;
  isolation: isolate;
}

@media (min-width: 1024px) {
  .case-hero {
    min-height: 640px;
  }
}

.case-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.case-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
}

.case-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 31, 92, 0.2) 0%, rgba(10, 31, 92, 0.7) 100%);
}

.case-hero__inner {
  position: relative;
  z-index: 1;
  height: 100%;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-32);
  padding-block: 120px 80px;
}

@media (min-width: 1024px) {
  .case-hero__inner {
    padding-block: 160px 96px;
  }
}

.case-hero__label {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.7);
  font-feature-settings: "tnum" 1;
  text-transform: uppercase;
}

.case-hero__title {
  margin-top: var(--spacing-24);
  max-width: 14ch;
  color: var(--color-canvas-white);
}

.case-hero__lead {
  margin-top: var(--spacing-24);
  font-size: var(--text-subheading);
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.78);
  max-width: 56ch;
}

.case-hero__credit {
  position: absolute;
  z-index: 2;
  right: var(--spacing-24);
  bottom: var(--spacing-16);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.45);
  font-feature-settings: "tnum" 1;
}

@media (min-width: 768px) {
  .case-hero__credit {
    right: var(--spacing-40);
  }
}

/* --- Case section (sidenote layout) ------------------------------------ */
.case-section__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-32);
}

@media (min-width: 1024px) {
  .case-section__inner {
    grid-template-columns: 200px 1fr;
    gap: var(--spacing-64);
  }
}

.case-section__head {
  position: relative;
}

@media (min-width: 1024px) {
  .case-section__head {
    position: sticky;
    top: 96px;
    align-self: start;
  }
}

.case-section__index {
  font-size: 13px;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.02em;
  color: var(--color-steel-accent);
  font-feature-settings: "tnum" 1;
  font-variant-numeric: tabular-nums;
  margin-bottom: var(--spacing-12);
}

.case-section__title {
  font-size: clamp(24px, 2.4vw, 28px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  font-weight: var(--font-weight-medium);
  color: var(--color-graphite-text);
}

.case-section__body p {
  font-size: var(--text-subheading);
  line-height: 1.7;
  color: var(--color-graphite-text);
  max-width: 60ch;
}

.case-section__body p + p {
  margin-top: var(--spacing-24);
}

/* --- Numbered hanging list (Challenge etc) ----------------------------- */
.case-list {
  border-top: 1px solid var(--color-outline-ash);
}

.case-list li {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: var(--spacing-16);
  padding-block: var(--spacing-24);
  border-bottom: 1px solid var(--color-outline-ash);
  font-size: var(--text-body);
  line-height: 1.6;
  color: var(--color-graphite-text);
}

.case-list li::before {
  content: attr(data-index);
  color: var(--color-steel-accent);
  font-feature-settings: "tnum" 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  font-size: 13px;
  padding-top: 4px;
}

.case-list li strong {
  color: var(--color-graphite-text);
  font-weight: var(--font-weight-medium);
}

/* --- Features as numbered horizontal list ------------------------------ */
.case-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--color-outline-ash);
}

@media (min-width: 768px) {
  .case-features {
    grid-template-columns: repeat(2, 1fr);
    column-gap: var(--spacing-48);
  }
}

.case-features__item {
  padding-block: var(--spacing-24);
  border-bottom: 1px solid var(--color-outline-ash);
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: var(--spacing-16);
  align-items: start;
}

.case-features__index {
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--color-steel-accent);
  font-feature-settings: "tnum" 1;
  font-variant-numeric: tabular-nums;
  padding-top: 4px;
}

.case-features__title {
  font-size: var(--text-subheading);
  line-height: 1.3;
  letter-spacing: -0.01em;
  font-weight: var(--font-weight-medium);
  color: var(--color-graphite-text);
  margin-bottom: 4px;
}

.case-features__desc {
  font-size: var(--text-body-sm);
  line-height: 1.6;
  color: var(--color-slate-text);
  max-width: 40ch;
}

/* --- Tech stack as table ---------------------------------------------- */
.case-stack {
  width: 100%;
  border-collapse: collapse;
  border-top: 1px solid var(--color-outline-ash);
  border-bottom: 1px solid var(--color-outline-ash);
  font-size: var(--text-body);
}

.case-stack th,
.case-stack td {
  text-align: left;
  vertical-align: top;
  padding: 18px var(--spacing-16);
  border-bottom: 1px solid var(--color-outline-ash);
  line-height: 1.5;
}

.case-stack tr:last-child td {
  border-bottom: 0;
}

.case-stack th {
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--color-steel-accent);
  font-weight: var(--font-weight-medium);
  font-feature-settings: "tnum" 1;
  padding-block: var(--spacing-16);
}

.case-stack__layer {
  font-weight: var(--font-weight-medium);
  color: var(--color-graphite-text);
  width: 18%;
  white-space: nowrap;
}

.case-stack__items {
  color: var(--color-graphite-text);
  width: 42%;
}

.case-stack__items div + div {
  margin-top: 2px;
}

.case-stack__items div::before {
  content: "– ";
  color: var(--color-steel-accent);
}

.case-stack__notes {
  color: var(--color-slate-text);
  font-size: var(--text-body-sm);
}

/* --- Outcome metrics as Before/After/Δ table -------------------------- */
.case-table {
  width: 100%;
  border-collapse: collapse;
  border-top: 1px solid var(--color-outline-ash);
  border-bottom: 1px solid var(--color-outline-ash);
  font-size: var(--text-body);
}

.case-table th,
.case-table td {
  text-align: left;
  vertical-align: top;
  padding: 18px var(--spacing-16);
  border-bottom: 1px solid var(--color-outline-ash);
  line-height: 1.5;
}

.case-table tr:last-child td {
  border-bottom: 0;
}

.case-table th {
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--color-steel-accent);
  font-weight: var(--font-weight-medium);
  font-feature-settings: "tnum" 1;
  padding-block: var(--spacing-16);
}

.case-table__metric {
  font-weight: var(--font-weight-medium);
  color: var(--color-graphite-text);
  width: 32%;
}

.case-table__before,
.case-table__after,
.case-table__delta {
  color: var(--color-graphite-text);
  font-feature-settings: "tnum" 1;
  font-variant-numeric: tabular-nums;
  width: 22%;
}

.case-table__delta {
  font-weight: var(--font-weight-medium);
}

/* --- Outcome metrics row ---------------------------------------------- */
.case-outcome {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--color-outline-ash);
  border-bottom: 1px solid var(--color-outline-ash);
}

@media (min-width: 768px) {
  .case-outcome {
    grid-template-columns: repeat(3, 1fr);
  }
}

.case-outcome__cell {
  padding-block: var(--spacing-32);
  padding-inline: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
  border-bottom: 1px solid var(--color-outline-ash);
}

.case-outcome__cell:last-child {
  border-bottom: 0;
}

@media (min-width: 768px) {
  .case-outcome__cell {
    padding-inline: var(--spacing-32);
    border-bottom: 0;
    border-right: 1px solid var(--color-outline-ash);
  }
  .case-outcome__cell:first-child {
    padding-left: 0;
  }
  .case-outcome__cell:last-child {
    border-right: 0;
    padding-right: 0;
  }
}

.case-outcome__metric {
  font-size: clamp(48px, 5.6vw, 72px);
  line-height: 1;
  letter-spacing: -0.03em;
  font-weight: var(--font-weight-medium);
  color: var(--color-graphite-text);
  font-feature-settings: "tnum" 1;
  font-variant-numeric: tabular-nums;
}

.case-outcome__label {
  font-size: 13px;
  font-weight: var(--font-weight-medium);
  color: var(--color-graphite-text);
  margin-top: var(--spacing-8);
}

.case-outcome__note {
  font-size: var(--text-body-sm);
  line-height: 1.55;
  color: var(--color-slate-text);
  max-width: 38ch;
}

/* --- Gallery with figure captions ------------------------------------- */
.case-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-32);
}

@media (min-width: 768px) {
  .case-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}

.case-gallery__figure {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-12);
}

.case-gallery__frame {
  aspect-ratio: 16 / 10;
  background: var(--color-whisper-gray);
  border: 1px solid var(--color-outline-ash);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-steel-accent);
  font-size: 13px;
  font-feature-settings: "tnum" 1;
  letter-spacing: 0.04em;
}

.case-gallery__caption {
  font-size: 12px;
  color: var(--color-steel-accent);
  letter-spacing: 0.02em;
  font-feature-settings: "tnum" 1;
}

.case-gallery__caption strong {
  color: var(--color-graphite-text);
  font-weight: var(--font-weight-medium);
  margin-right: 6px;
}

/* --- Credits footer block --------------------------------------------- */
.case-credits {
  border-top: 1px solid var(--color-outline-ash);
  padding-block: var(--spacing-32);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-16);
  font-size: 12px;
  color: var(--color-steel-accent);
  letter-spacing: 0.02em;
  font-feature-settings: "tnum" 1;
}

@media (min-width: 768px) {
  .case-credits {
    grid-template-columns: repeat(4, 1fr);
  }
}

.case-credits__cell strong {
  display: block;
  color: var(--color-graphite-text);
  font-weight: var(--font-weight-regular);
  font-size: 13px;
  margin-top: 4px;
  letter-spacing: 0;
}