/* ==========================================================================
   case-study.css — shared styles for every pages/case-*.html
   Structured as: layout · hero · overview · process · gallery · results · credits
   ========================================================================== */

main { padding: 0 28px; }
section {
  position: relative;
  padding: 100px 0;
  border-bottom: 1px solid var(--line);
}
section:last-child { border-bottom: none; }


/* -- Hero ----------------------------------------------------------------- */
.heroA {
  min-height: 100vh;
  padding: 180px 0 60px;
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 40px;
}
.heroA .eyebrow {
  display: flex;
  justify-content: space-between;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.heroA h1 {
  font-family: "Syne", sans-serif;
  font-weight: 700;
  font-size: clamp(64px, 10vw, 170px);
  line-height: .88;
  letter-spacing: -0.045em;
}
.heroA h1 em {
  font-family: "Instrument Serif", serif;
  font-style: italic;
  font-weight: 400;
  color: var(--acc);
}
.heroA .lede {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: end;
  margin-top: 40px;
}
.heroA .lede p {
  font-size: clamp(20px, 1.6vw, 26px);
  line-height: 1.35;
  color: var(--ink-2);
  max-width: 520px;
}
.heroA .meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.heroA .meta .k {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: block;
  margin-bottom: 6px;
}
.heroA .meta .v { font-size: 18px; color: var(--ink); }


/* -- Overview ------------------------------------------------------------- */
.ovA {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  align-items: start;
}
.ovA h2 {
  font-family: "Syne", sans-serif;
  font-weight: 700;
  font-size: clamp(36px, 4vw, 60px);
  letter-spacing: -0.03em;
  line-height: .95;
}
.ovA h2 em {
  font-family: "Instrument Serif", serif;
  font-style: italic;
  color: var(--acc);
  font-weight: 400;
}
.ovA .body p {
  font-size: 22px;
  line-height: 1.45;
  color: var(--ink);
  max-width: 560px;
}
.ovA .body p + p { margin-top: 14px; color: var(--ink-2); }


/* -- Process (grid of steps) --------------------------------------------- */
.prA {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.prA .step {
  background: var(--bg);
  padding: 24px 22px;
  min-height: 200px;
  position: relative;
  transition: background .3s;
}
.prA .step:hover { background: var(--bg-2); }
.prA .step .n {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  color: var(--acc);
  letter-spacing: .12em;
}
.prA .step .h {
  font-family: "Syne", sans-serif;
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.02em;
  margin-top: 40px;
}
.prA .step .p {
  font-size: 15px;
  color: var(--ink-2);
  margin-top: 10px;
  line-height: 1.35;
}


/* -- Gallery (bento) ----------------------------------------------------- */
.glA {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: 80px;
  gap: 14px;
}
.glA .tile {
  position: relative;
  overflow: hidden;
  border-radius: 2px;
  transition: transform .3s;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.glA .tile:hover { transform: scale(1.02); z-index: 2; }
.glA .tile::after {
  content: attr(data-cap);
  position: absolute;
  left: 10px; bottom: 10px;
  font-family: "JetBrains Mono", monospace;
  font-size: 9px;
  color: #fff;
  background: rgba(0, 0, 0, .55);
  padding: 4px 8px;
  letter-spacing: .1em;
  text-transform: uppercase;
  opacity: 0;
  transition: opacity .3s;
}
.glA .tile:hover::after { opacity: 1; }

/* Gradient fallbacks (used until an image lands on top) */
.glA .t1 { grid-column: 1/7;  grid-row: 1/5; background-color: oklch(0.30 0.06 30); }
.glA .t2 { grid-column: 7/13; grid-row: 1/3; background-color: oklch(0.32 0.05 60); }
.glA .t3 { grid-column: 7/10; grid-row: 3/5; background-color: oklch(0.55 0.14 120); }
.glA .t4 { grid-column: 10/13; grid-row: 3/5; background-color: oklch(0.28 0.06 340); }
.glA .t5 { grid-column: 1/5;  grid-row: 5/8; background-color: oklch(0.28 0.06 220); }
.glA .t6 { grid-column: 5/9;  grid-row: 5/8; background-color: oklch(0.32 0.04 140); }
.glA .t7 { grid-column: 9/13; grid-row: 5/8; background-color: oklch(0.32 0.05 60); }

/* Extended bento, optional extra row (legacy). Left in place so older
   pages with t8-t10 still render; the active layout is .glA-tall below. */
.glA .t8 { grid-column: 1/5;  grid-row: 8/11; background-color: oklch(0.30 0.05 30); }
.glA .t9 { grid-column: 5/9;  grid-row: 8/11; background-color: oklch(0.34 0.06 120); }
.glA .t10{ grid-column: 9/13; grid-row: 8/11; background-color: oklch(0.28 0.05 340); }


/* -- Gallery, portrait variant ------------------------------------------
   Used on case-sip.html where the artwork is mostly portrait. Drops the
   bento grid for a clean 3-col grid of tall tiles. Add .hide-mobile to
   any tile that should drop off on small screens. */
.glA.glA-tall {
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: auto;
  gap: 14px;
}
.glA.glA-tall .tile {
  grid-column: auto;
  grid-row: auto;
  aspect-ratio: 3 / 4;
}


/* -- Results (big numbers) ----------------------------------------------- */
.rsA {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  border-top: 1px solid var(--line);
  padding-top: 40px;
}
.rsA .cell .big {
  font-family: "Syne", sans-serif;
  font-weight: 700;
  font-size: clamp(64px, 8vw, 110px);
  line-height: .88;
  letter-spacing: -0.04em;
  color: var(--acc);
}
.rsA .cell .lbl {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-top: 12px;
}
.rsA .cell .nt {
  font-style: italic;
  color: var(--ink-2);
  font-size: 17px;
  margin-top: 6px;
  max-width: 280px;
}


/* -- Credits / next / footer --------------------------------------------- */
.credits {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: end;
  padding: 100px 0 40px;
}
.credits h3 {
  font-family: "Syne", sans-serif;
  font-weight: 700;
  font-size: clamp(48px, 6vw, 100px);
  line-height: .9;
  letter-spacing: -0.04em;
}
.credits h3 em {
  font-family: "Instrument Serif", serif;
  font-style: italic;
  color: var(--acc);
  font-weight: 400;
}
.credits dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px 20px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}
.credits dt {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--ink-3);
  padding-top: 4px;
}
.credits dd { font-size: 18px; color: var(--ink); }

.next {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  border-top: 1px solid var(--line);
  padding: 40px 0;
}
.next a {
  border: 1px solid var(--line);
  padding: 28px;
  transition: background .25s, color .25s, border-color .25s;
  cursor: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.next a:hover { background: var(--acc); color: var(--acc-ink); border-color: var(--acc); }
.next .nm {
  font-family: "Syne", sans-serif;
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.02em;
}
.next .k {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: block;
  margin-bottom: 8px;
}
.next a:hover .k { color: oklch(0.3 0.1 120); }

footer {
  display: flex;
  justify-content: space-between;
  padding: 40px 0;
  border-top: 1px solid var(--line);
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-3);
}


/* -- Process variants (3 or 5 steps) ------------------------------------ */
.prA.prA-3 { grid-template-columns: repeat(3, 1fr); }
.prA.prA-5 { grid-template-columns: repeat(5, 1fr); }


/* -- Results variant (4 cells) ------------------------------------------ */
.rsA.rsA-4 { grid-template-columns: repeat(4, 1fr); gap: 30px; }


/* -- Pullquote (used on studio-rebrand) --------------------------------- */
.pullquote {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  padding: 20px 0;
}
.pullquote p {
  font-family: "Instrument Serif", serif;
  font-style: italic;
  font-size: clamp(32px, 4vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.pullquote p em { color: var(--acc); }
.pullquote .attr {
  display: block;
  margin-top: 24px;
  font-family: "JetBrains Mono", monospace;
  font-style: normal;
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-3);
}


/* -- Code card (prompt excerpt, file tree) ------------------------------ */
.codecard {
  border: 1px solid var(--line);
  background: var(--bg-2, #111);
  padding: 26px 28px;
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-2);
  white-space: pre-wrap;
  overflow-x: auto;
}
.codecard .cc-head {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
  margin-bottom: 16px;
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.codecard .cc-head em {
  font-style: normal;
  color: var(--acc);
}
.codecard .hl { color: var(--acc); }


/* -- Gear sheet (used on pexels) ---------------------------------------- */
.gear {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  border-top: 1px solid var(--line);
  padding-top: 40px;
}
.gear dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px 24px;
}
.gear dt {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding-top: 6px;
}
.gear dd {
  font-size: 18px;
  color: var(--ink);
}
.gear dd em {
  font-family: "Instrument Serif", serif;
  font-style: italic;
  color: var(--acc);
}


/* -- Disclaimer (used on nyp-at, replaces gallery) ---------------------- */
.disclaimer {
  border: 1px solid var(--line);
  padding: clamp(48px, 8vw, 120px) clamp(28px, 5vw, 80px);
  text-align: center;
}
.disclaimer .ping {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--acc);
  margin-bottom: 28px;
  animation: ping 1.6s ease-in-out infinite;
}
.disclaimer p {
  font-family: "Syne", sans-serif;
  font-weight: 700;
  font-size: clamp(36px, 5.5vw, 82px);
  line-height: .95;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.disclaimer p em {
  font-family: "Instrument Serif", serif;
  font-style: italic;
  font-weight: 400;
  color: var(--acc);
}
.disclaimer .sub {
  margin-top: 28px;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-3);
}
@keyframes ping {
  0%,100% { opacity: 1;   transform: scale(1); }
  50%     { opacity: .4;  transform: scale(1.4); }
}


/* ==========================================================================
   Responsive — kept at the bottom so the .prA-3 / .prA-5 / .rsA-4 variant
   rules above don't override the mobile collapse. Three breakpoints:
     ≤ 900px — tablet (2-col grids collapse to 1-col)
     ≤ 640px — phone (simplified bento, tighter padding, smaller type)
     ≤ 420px — small phone (single column, minimal padding)
   ========================================================================== */

@media (max-width: 900px) {
  main { padding: 0 20px; }
  section { padding: 80px 0; }

  .heroA { padding: 140px 0 40px; min-height: auto; }
  .heroA .eyebrow { flex-wrap: wrap; gap: 8px 18px; }
  .heroA .lede { grid-template-columns: 1fr; gap: 24px; margin-top: 24px; }
  .heroA .meta { grid-template-columns: repeat(2, 1fr); }

  .ovA,
  .credits,
  .next          { grid-template-columns: 1fr; gap: 24px; }
  .credits       { padding: 80px 0 30px; }

  .prA,
  .prA.prA-3,
  .prA.prA-5     { grid-template-columns: repeat(2, 1fr); }
  .prA .step     { min-height: auto; }

  .rsA           { grid-template-columns: 1fr; gap: 30px; }
  .rsA.rsA-4     { grid-template-columns: repeat(2, 1fr); gap: 24px; }

  .gear          { grid-template-columns: 1fr; gap: 30px; }

  /* Bento on tablet: still 12-col but wider tiles */
  .glA { grid-auto-rows: 70px; gap: 10px; }
}

@media (max-width: 640px) {
  section { padding: 60px 0; }

  .heroA { padding: 110px 0 30px; gap: 24px; }
  .heroA .eyebrow { font-size: 10px; padding-bottom: 12px; }
  .heroA .meta { grid-template-columns: 1fr; gap: 14px; padding-top: 18px; }
  .heroA .meta .v { font-size: 16px; }
  .heroA .lede p { font-size: 18px; }

  .ovA h2 { font-size: clamp(30px, 8vw, 42px); }
  .ovA .body p { font-size: 18px; }

  .prA,
  .prA.prA-3,
  .prA.prA-5     { grid-template-columns: 1fr; gap: 1px; }
  .prA .step     { padding: 20px 18px; min-height: auto; }
  .prA .step .h  { margin-top: 28px; font-size: 22px; }

  /* Bento → stacked 2-col, forget the specific grid positions */
  .glA {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: auto;
    gap: 8px;
  }
  .glA .tile {
    grid-column: auto !important;
    grid-row: auto !important;
    aspect-ratio: 1;
  }
  /* Let the first tile stay full-width, it's always the hero shot.
     If a page uses the extended 10-tile layout, let the last one close
     the sequence full-width too, so the 2-col grid doesn't leave a gap. */
  .glA .t1  { grid-column: 1 / -1 !important; aspect-ratio: 16/10; }
  .glA .t10 { grid-column: 1 / -1 !important; aspect-ratio: 16/10; }
  /* Make captions always visible on touch (no hover) */
  .glA .tile::after { opacity: 1; font-size: 8px; }

  /* Portrait gallery on mobile: drop to a single column of three tiles
     and hide everything tagged .hide-mobile. */
  .glA.glA-tall {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .glA.glA-tall .tile { aspect-ratio: 4 / 5; }
  .glA.glA-tall .hide-mobile { display: none; }

  .rsA,
  .rsA.rsA-4     { grid-template-columns: 1fr; gap: 24px; padding-top: 24px; }
  .rsA .cell .big { font-size: clamp(56px, 16vw, 88px); }
  .rsA .cell .nt  { font-size: 15px; max-width: none; }

  .credits h3 { font-size: clamp(40px, 11vw, 64px); }
  .credits dd { font-size: 16px; }

  .next a       { padding: 20px 18px; }
  .next .nm     { font-size: 20px; }

  .pullquote          { padding: 10px 0; }
  .pullquote p        { font-size: clamp(24px, 7vw, 36px); }

  .codecard           { padding: 18px 16px; font-size: 11px; line-height: 1.7; }
  .codecard .cc-head  { font-size: 9px; }

  .disclaimer         { padding: 48px 20px; }
  .disclaimer p       { font-size: clamp(28px, 8vw, 44px); }
  .disclaimer .sub    { font-size: 10px; }

  .gear dd { font-size: 16px; }

  footer { flex-direction: column; align-items: flex-start; gap: 10px; padding: 30px 0; }
}

@media (max-width: 420px) {
  main { padding: 0 16px; }
  section { padding: 50px 0; }
  .heroA { padding: 90px 0 20px; }

  .glA { grid-template-columns: 1fr; }
  .glA .t1 { aspect-ratio: 4/3; }
}

/* Touch devices: always show bento captions (no hover to reveal them). */
@media (hover: none) {
  .glA .tile::after { opacity: 1; }
}