/* ==========================================================================
   tgeddes.dev - case study styles
   Loaded in addition to styles.css for individual project case study pages.
   ========================================================================== */

.case-study {
  position: relative;
  z-index: 2;
}

/* --- Case study hero ----------------------------------------------------- */

.case-hero {
  padding: 4rem 0 3rem;
}

.case-hero-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 2rem;
}

.case-title {
  font-family: 'Space Grotesk', 'Geist', sans-serif;
  font-size: clamp(2.25rem, 5.5vw, 3.75rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 0 0 1rem;
}

.case-tagline {
  font-style: italic;
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  color: var(--muted);
  line-height: 1.4;
  margin: 0 0 3rem;
  max-width: 48ch;
}

.case-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin: 0;
}

.meta-item dt {
  font-family: 'Geist Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.meta-item dd {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text);
}

.meta-link {
  display: inline-block;
  margin-right: 0.75rem;
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
  font-family: 'Geist Mono', monospace;
  font-size: 0.85rem;
}

.meta-link:hover { opacity: 0.7; }

/* --- Hero image ---------------------------------------------------------- */

.case-hero-image {
  max-width: 1240px;
  margin: 3rem auto 5rem;
  padding: 0 2rem;
  text-align: center;
  box-sizing: border-box;
}

/* Show the full image, scaled to a uniform height; width varies, never cropped.
   Height lives on the img (not a flex parent) so the figcaption flows below it. */
.case-hero-image img {
  height: 480px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  display: inline-block;
  vertical-align: top;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
}

/* Clickable hero that opens a full-res lightbox */
.case-hero-image .expandable {
  cursor: zoom-in;
  transition: border-color 0.2s, transform 0.2s;
}

.case-hero-image .expandable:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.case-hero-image .expand-hint {
  display: inline-block;
  font-family: 'Geist Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-right: 0.6rem;
}

.case-hero-image figcaption,
.case-image figcaption {
  font-style: italic;
  font-size: 0.9rem;
  color: var(--muted);
  text-align: center;
  margin-top: 0.85rem;
}

/* --- Case body ----------------------------------------------------------- */

.case-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 2rem 4rem;
  font-size: 1.075rem;
  line-height: 1.75;
}

.case-body section { margin-bottom: 3.5rem; }

.case-body h2 {
  font-family: 'Space Grotesk', 'Geist', sans-serif;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 1.25rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border);
}

.case-body p { margin: 0 0 1.25rem; max-width: 64ch; }

.feature-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}

.feature-list li {
  padding: 0.6rem 0 0.6rem 1.5rem;
  border-bottom: 1px solid var(--border);
  position: relative;
  font-size: 1rem;
}

.feature-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: 'Geist Mono', monospace;
  font-weight: 600;
}

/* --- Inline image (within case body) ------------------------------------- */

.case-image {
  max-width: 1080px;
  margin: 3rem auto;
  padding: 0;
}

.case-image img {
  width: 100%;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
}

/* --- Stack callout ------------------------------------------------------- */

.stack-callout {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 1.5rem 1.75rem;
  border-radius: 4px;
  margin: 2rem 0;
}

.stack-callout-label {
  font-family: 'Geist Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1rem;
}

.stack-callout-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.85rem 1.5rem;
}

.stack-callout-list li {
  font-family: 'Geist Mono', monospace;
  font-size: 0.85rem;
  color: var(--text);
}

.stack-callout-list strong {
  display: block;
  font-weight: 500;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.2rem;
}

/* --- Case nav (prev/next) ------------------------------------------------ */

.case-nav {
  max-width: 1080px;
  margin: 2rem auto 5rem;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  border-top: 1px solid var(--border);
  padding-top: 2rem;
}

.case-nav-link {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-elev);
  transition: border-color 0.2s, transform 0.2s;
}

.case-nav-link:hover { border-color: var(--accent); transform: translateY(-2px); }

.case-nav-next { text-align: right; }

.case-nav-label {
  font-family: 'Geist Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.case-nav-title {
  font-family: 'Space Grotesk', 'Geist', sans-serif;
  font-size: 1.2rem;
  color: var(--text);
  letter-spacing: -0.01em;
}

@media (max-width: 768px) {
  .case-nav { grid-template-columns: 1fr; }
  .case-nav-next { text-align: left; }
}

/* === Mobile QA pass (responsive refinements) ============================= */
/*
   Additive-only block. Do not edit rules above - only append here.
   Problems fixed:
     1. case-title clamp floor is 2.5rem (40px) - very large on a 360px
        phone. Overridden to 2rem (32px) floor at 480px.
     2. case-hero padding not reduced on mobile - tightened.
     3. case-hero-image bottom margin (5rem) is excessive on phones.
     4. case-body word-break added to prevent long inline code tokens from
        causing horizontal overflow on narrow screens.
     5. case-nav bottom margin reduced on phones.
*/

@media (max-width: 768px) {
  /* Hero section padding */
  .case-hero { padding: 2.5rem 0 2rem; }

  /* Hero image - reduce the generous 5rem bottom gap + shorter uniform height */
  .case-hero-image { margin-bottom: 3rem; }
  .case-hero-image img { height: 340px; }

  /* Case nav bottom margin */
  .case-nav { margin-bottom: 3rem; }
}

@media (max-width: 480px) {
  /* Reduce the display title floor - 40px is too large on a 360px phone */
  .case-title { font-size: clamp(2rem, 9vw, 5rem); }

  /* Tighten hero further */
  .case-hero { padding: 2rem 0 1.5rem; }

  /* Tagline - slightly smaller minimum so it breathes */
  .case-tagline { font-size: clamp(1rem, 4vw, 1.5rem); }

  /* Case body - prevent long inline code strings from overflowing */
  .case-body { word-break: break-word; overflow-wrap: break-word; }

  /* Hero image bottom gap further reduced */
  .case-hero-image { margin-bottom: 2rem; }
}

/* === End Mobile QA pass ================================================== */

/* === Image expand overlay (lightbox) ==================================== */
/*
   Reusable full-res image lightbox. Wired up by case-study-expand.js, which
   injects a single .img-expand-overlay element per page and toggles
   .is-open. Any <img class="expandable" data-full="..."> opens it.
*/

.img-expand-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(4px);
}

.img-expand-overlay.is-open {
  display: flex;
}

.img-expand-figure {
  position: relative;
  max-width: 1400px;
  max-height: 100%;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.img-expand-figure img {
  max-width: 100%;
  max-height: calc(100vh - 9rem);
  width: auto;
  height: auto;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  object-fit: contain;
}

.img-expand-goback {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-elev);
  color: var(--text);
  font-family: 'Geist Mono', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s;
}

.img-expand-goback:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

@media (max-width: 768px) {
  .img-expand-overlay { padding: 2rem 1rem; }
  .img-expand-figure img { max-height: calc(100vh - 7rem); }
}

/* === End image expand overlay =========================================== */