/* Case study page styles — builds on portfolio.css */

.case-page { padding-bottom: 0; }
.back-link {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  white-space: nowrap;
}
.back-link:hover { color: var(--accent); }

/* ===== CASE HERO ===== */
.case-hero {
  padding: clamp(40px, 5vw, 72px) 0 clamp(36px, 5vw, 64px);
  border-bottom: 1px solid var(--rule);
}
.crumbs {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 56px;
}
.crumbs a { color: var(--ink-soft); }
.crumbs a:hover { color: var(--accent); }
.crumbs span { padding: 0 8px; color: var(--ink-mute); }

.case-hero__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: clamp(36px, 5vw, 80px);
  align-items: start;
}
.case-hero__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(32px, 4.6vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.022em;
  margin: 16px 0 0;
  text-wrap: pretty;
  max-width: 18ch;
}
.case-hero__title em { color: var(--accent); font-style: italic; }
.case-hero__lede {
  margin: clamp(20px, 2vw, 28px) 0 0;
  font-size: clamp(17px, 1.4vw, 19px);
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 56ch;
}
.case-hero__lede em { color: var(--ink); font-style: italic; }

.meta-card {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 28px 28px 24px;
  font-family: var(--serif);
}
.meta-card dl { margin: 0; }
.meta-card dl > div {
  display: grid;
  grid-template-columns: 90px 1fr;
  padding: 12px 0;
  border-bottom: 1px dashed var(--rule-soft);
  align-items: baseline;
  gap: 12px;
}
.meta-card dl > div:last-of-type { border-bottom: none; }
.meta-card dt {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.meta-card dd {
  margin: 0;
  font-size: 15px;
  color: var(--ink);
}
.meta-card__links {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
}

@media (max-width: 880px) {
  .case-hero__grid { grid-template-columns: 1fr; }
}

/* ===== FIGURES ===== */
.case-figure {
  padding: clamp(40px, 5vw, 80px) 0;
}
.case-figure image-slot {
  border: 1px solid var(--rule);
}
.case-figure__img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--rule);
  background: var(--paper);
}
.case-figure__img--wide {
  padding: 24px;
  background: var(--paper);
}

/* App-screenshot frame used in case studies */
.screenshot-frame {
  border: 1px solid var(--rule);
  background: var(--paper);
  padding: clamp(16px, 2vw, 32px);
}
.screenshot-frame img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--rule-soft);
}

/* Single-figure row (e.g. the Pi photo) */
.figure-row figure { margin: 0; max-width: 720px; }
.figure-row img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--rule);
  display: block;
  filter: saturate(0.92) contrast(1.02);
}
.figure-row figcaption {
  display: flex; gap: 14px;
  margin-top: 16px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 14px;
  color: var(--ink-mute);
  line-height: 1.45;
  max-width: 60ch;
}
.figure-row .caption__num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  font-style: normal;
  white-space: nowrap;
  padding-top: 2px;
}
.caption {
  display: flex; gap: 16px;
  margin: 16px 0 0;
  font-size: 14px;
  color: var(--ink-mute);
  font-family: var(--serif);
  font-style: italic;
  max-width: 76ch;
}
.caption__num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  font-style: normal;
  white-space: nowrap;
  padding-top: 2px;
}

.two-up {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(20px, 3vw, 48px);
}
.two-up figure { margin: 0; }
.two-up figcaption {
  display: flex; gap: 14px;
  margin-top: 14px;
  font-size: 13px;
  color: var(--ink-mute);
  font-family: var(--serif);
  font-style: italic;
  line-height: 1.45;
}
.two-up .caption__num { padding-top: 1px; }
@media (max-width: 760px) { .two-up { grid-template-columns: 1fr; } }

/* ===== CASE SECTION ===== */
.case-section {
  padding: clamp(56px, 7vw, 100px) 0;
  border-top: 1px solid var(--rule);
}
.case-section--alt { background: var(--bg-alt); }

.case-section__grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: clamp(36px, 6vw, 96px);
  align-items: start;
}
.case-section__head { position: sticky; top: 80px; }
.case-section__head h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(26px, 3vw, 36px);
  letter-spacing: -0.02em;
  margin: 8px 0 0;
}
.case-section__body p { margin: 0 0 22px; max-width: 60ch; color: var(--ink-soft); }
.case-section__body p:last-child { margin-bottom: 0; }
.case-section__body .lead {
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.4;
  color: var(--ink);
  margin-bottom: 28px;
  letter-spacing: -0.01em;
  max-width: 32ch;
}
.prose__lead {
  font-family: var(--serif);
  font-size: 19px;
  color: var(--ink);
  margin: 0 0 18px;
  font-style: italic;
}
@media (max-width: 880px) {
  .case-section__grid { grid-template-columns: 1fr; }
  .case-section__head { position: static; }
}

/* ===== STEPS ===== */
.steps {
  list-style: none; padding: 0; margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--rule-soft);
}
.steps li {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--rule-soft);
}
.steps__num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--accent);
  padding-top: 2px;
  grid-row: 1 / span 2;
  grid-column: 1;
}
.steps h3 { grid-column: 2; }
.steps p { grid-column: 2; }
.steps h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 19px;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
}
.steps p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.55;
  max-width: 52ch;
}

/* ===== CODE BLOCK ===== */
.code {
  font-family: var(--mono);
  background: var(--ink);
  color: var(--bg);
  padding: 20px 24px;
  border-radius: 2px;
  font-size: 13px;
  line-height: 1.6;
  overflow-x: auto;
  letter-spacing: 0.01em;
  margin: 0 0 24px;
}
.code__prompt { color: var(--accent); user-select: none; margin-right: 12px; }
.code__flag { color: color-mix(in oklch, var(--bg) 60%, var(--accent)); }
code {
  font-family: var(--mono);
  background: var(--rule-soft);
  padding: 2px 6px;
  font-size: 0.88em;
  border-radius: 2px;
}

/* ===== NEXT CARD ===== */
.case-next {
  background: var(--ink);
  color: var(--bg);
  padding: clamp(56px, 7vw, 96px) 0;
}
.next-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 32px 0;
  border-top: 1px solid color-mix(in oklch, var(--bg) 18%, transparent);
  border-bottom: 1px solid color-mix(in oklch, var(--bg) 18%, transparent);
  color: var(--bg);
  transition: padding .3s;
}
.next-card:hover { padding-left: 12px; }
.next-card__meta .kicker { color: color-mix(in oklch, var(--bg) 50%, transparent); }
.next-card__meta h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(32px, 4.2vw, 56px);
  letter-spacing: -0.022em;
  line-height: 1.05;
  margin: 12px 0 12px;
  color: var(--bg);
}
.next-card__meta p {
  font-size: 17px;
  color: color-mix(in oklch, var(--bg) 70%, transparent);
  margin: 0;
  max-width: 56ch;
}
.next-card__arrow {
  font-family: var(--serif);
  font-size: clamp(48px, 6vw, 80px);
  color: var(--accent);
  transition: transform .3s ease;
  line-height: 1;
}
.next-card:hover .next-card__arrow { transform: translateX(10px); }

/* Footer link override in case studies */
.footer__row a { color: inherit; }
.footer__row a:hover { color: var(--accent); }

/* ===== EXTRA CODE TOKENS ===== */
.code__comment { color: color-mix(in oklch, var(--bg) 45%, transparent); }
.code__kw { color: color-mix(in oklch, var(--bg) 75%, var(--accent)); }
.code__str { color: color-mix(in oklch, var(--bg) 60%, #d6c178); }
.code + .code { margin-top: -8px; }

/* ===== USAGE SUBHEADS ===== */
.usage-sub {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 32px 0 12px;
  font-weight: 500;
}
.usage-sub:first-child { margin-top: 0; }

/* ===== DISTRIBUTION CARDS ===== */
.dist-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 28px;
}
.dist-card {
  border: 1px solid var(--rule);
  background: var(--paper);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.dist-card__label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}
.dist-card code {
  font-family: var(--mono);
  font-size: 13px;
  background: transparent;
  padding: 0;
  color: var(--ink);
  word-break: break-all;
}

/* ===== STATS ROW ===== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.stat {
  padding: 28px 24px;
  border-right: 1px solid var(--rule-soft);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.stat:last-child { border-right: none; }
.stat__num {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(32px, 3.6vw, 48px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.stat__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
@media (max-width: 760px) {
  .stat { border-right: none; border-bottom: 1px solid var(--rule-soft); }
  .stat:last-child { border-bottom: none; }
}

/* ===== VIDEO SLOT PLACEHOLDER ===== */
.video-slot {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px dashed var(--rule);
  background:
    repeating-linear-gradient(
      45deg,
      transparent 0 14px,
      color-mix(in oklch, var(--paper) 80%, var(--ink-mute)) 14px 15px
    ),
    var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
}
.video-slot__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  background: var(--paper);
  padding: 28px 36px;
  border: 1px solid var(--rule);
  text-align: center;
}
.video-slot__icon {
  font-size: 32px;
  color: var(--accent);
  line-height: 1;
}
.video-slot__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
}
.video-slot__hint {
  font-family: var(--serif);
  font-style: italic;
  font-size: 14px;
  color: var(--ink-mute);
  max-width: 36ch;
}

/* ===== ARCH LIST ===== */
.arch-list {
  margin-top: 28px;
  border-top: 1px solid var(--rule-soft);
}
.arch-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule-soft);
  align-items: baseline;
}
.arch-item__label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.arch-item__val {
  font-family: var(--serif);
  font-size: 16px;
  color: var(--ink);
}

/* ===== PORTRAIT-AWARE FIGURE ROW ===== */
.figure-row--portrait figure { max-width: 480px; margin: 0 auto; }
.figure-row--portrait img {
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

/* ===== META CARD MULTIPLE LINKS ===== */
.meta-card__links { display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }
.meta-card__links .link { display: inline-flex; }