/* ==========================================================================
   AkhilJ.ca — work.css  (Work page only, loaded after v3.css)
   Apple-style chapters: one consistent layout per project. As you scroll,
   the page colour shifts into each project's world (bg + text change
   together), the sticky index follows along, and each image grows into place.
   Without JS every chapter simply keeps its own colour.
   ========================================================================== */

/* ---------- Intro ---------- */
.wk-intro { padding: clamp(40px, 5vw, 80px) 0 clamp(56px, 6vw, 96px); text-align: center; }
.wk-intro__kicker { display: inline-flex; gap: 12px; align-items: baseline; font-size: var(--fs-sm); color: var(--ink-2); }
.wk-intro__kicker .meta { color: var(--muted); }
.wk-intro__title {
  margin: 20px auto 0;
  font-size: clamp(2.8rem, 1rem + 5.4vw, 6.4rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
  max-width: 13ch;
  text-wrap: balance;
}
.wk-intro__title em { color: var(--accent); letter-spacing: -0.045em; }
.wk-intro__lede { margin: 28px auto 0; font-size: 1.1rem; line-height: 1.55; color: var(--ink-2); max-width: 44ch; }

/* Project index: five small covers, like a product chooser */
.wk-idx { margin-top: clamp(48px, 6vw, 88px); }
.wk-idx ol { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: clamp(12px, 1.6vw, 24px); text-align: left; }
.wk-idx a { display: block; }
.wk-idx__img { display: block; aspect-ratio: 4 / 3; overflow: hidden; border-radius: var(--radius-l); background: var(--stone); }
.wk-idx__img img { width: 100%; height: 100%; object-fit: cover; transition: scale 900ms var(--ease-out); }
.wk-idx__label { display: flex; gap: 10px; align-items: baseline; margin-top: 12px; font-size: var(--fs-sm); font-weight: 500; color: var(--ink); transition: color 400ms var(--ease); }
.wk-idx__label .meta { color: var(--muted); }
.wk-idx a:hover img { scale: 1.05; }
.wk-idx a:hover .wk-idx__label { color: var(--accent); }

/* ---------- Sticky chapter nav (frosted, follows the current colour) ---------- */
.wk-nav {
  position: sticky;
  top: var(--header-h);
  z-index: 40;
  color: var(--wk-ink);
  background: color-mix(in srgb, var(--wk-bg) 84%, transparent);
  -webkit-backdrop-filter: saturate(1.6) blur(18px);
  backdrop-filter: saturate(1.6) blur(18px);
}
body:has(.site-header.is-hidden) .wk-nav { top: 0; }
.wk-nav__in { position: relative; }
.wk-nav ol { display: flex; gap: clamp(20px, 3vw, 48px); overflow-x: auto; scrollbar-width: none; }
.wk-nav ol::-webkit-scrollbar { display: none; }
.wk-nav a {
  display: flex;
  gap: 8px;
  align-items: baseline;
  padding: 16px 0 15px;
  white-space: nowrap;
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--wk-muted);
  transition: color 500ms var(--ease);
}
.wk-nav a .meta { color: inherit; opacity: 0.7; }
.wk-nav a:hover, .wk-nav a[aria-current="true"] { color: var(--wk-ink); }
.wk-nav__bar { position: absolute; left: var(--gutter); right: var(--gutter); bottom: 0; height: 1px; background: var(--wk-line); }
.wk-nav__bar span { position: absolute; inset: 0; background: var(--wk-ink); transform-origin: 0 50%; transform: scaleX(0); }

/* ---------- Chapters ---------- */
.wk-ch { padding: clamp(96px, 11vw, 176px) 0 clamp(40px, 5vw, 72px); }

.wk-ch__head { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--gap); align-items: start; }
.wk-ch__num {
  grid-column: 1 / span 3;
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-top: -0.06em;
  font-size: clamp(4rem, 2rem + 6vw, 9rem);
  line-height: 0.85;
  letter-spacing: -0.06em;
  color: var(--wk-dim);
  font-variant-numeric: tabular-nums;
}
.wk-ch__of { font-size: var(--fs-sm); letter-spacing: 0; color: var(--wk-muted); }
.wk-ch__intro { grid-column: 4 / span 9; }
.wk-ch__disc { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; font-size: var(--fs-sm); color: var(--wk-muted); }
.wk-ch__tag {
  padding: 3px 8px;
  border-radius: 3px;
  box-shadow: inset 0 0 0 1px var(--wk-line);
  font-size: var(--fs-xs);
  color: var(--wk-ink-2);
}
.wk-ch__title {
  color: var(--wk-ink);
  margin-top: 14px;
  font-size: clamp(3.2rem, 1rem + 7vw, 8.4rem);
  line-height: 0.92;
  letter-spacing: -0.06em;
}
.wk-ch__line { margin-top: 18px; font-size: clamp(1.25rem, 1rem + 0.9vw, 1.9rem); line-height: 1.2; letter-spacing: -0.025em; color: var(--wk-ink-2); max-width: 30ch; }
.wk-ch__cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
  padding-bottom: 3px;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--wk-ink);
  background: linear-gradient(currentColor, currentColor) 0 100% / 100% 1px no-repeat;
}
.wk-ch__cta svg { width: 15px; height: 15px; transition: translate 600ms var(--ease-out); }
.wk-ch__cta:hover svg { translate: 4px 0; }

.wk-ch__foot {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--gap);
  row-gap: 28px;
  margin-top: clamp(32px, 3.5vw, 48px);
  padding-top: 24px;
  border-top: 1px solid var(--wk-line);
}
.wk-ch__desc { grid-column: 1 / span 6; font-size: 1.05rem; line-height: 1.6; color: var(--wk-ink-2); max-width: 48ch; }
.wk-ch__facts { grid-column: 8 / span 5; }
.wk-ch__facts > div { display: grid; grid-template-columns: 88px minmax(0, 1fr); gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--wk-line); font-size: var(--fs-sm); }
.wk-ch__facts > div:first-child { padding-top: 0; }
.wk-ch__facts dt { color: var(--wk-muted); }
.wk-ch__facts dd { color: var(--wk-ink); }

/* Closing row inside the colour flow */
.wk-more { background: var(--ch-bg); color: var(--ink); padding: clamp(88px, 9vw, 140px) 0; }
.wk.is-live .wk-more { background: transparent; }
.wk-more__in { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 16px 32px; padding-top: 24px; border-top: 1px solid var(--line-strong); }
.wk-more__in p { font-size: var(--fs-lg); color: var(--ink-2); max-width: 44ch; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .wk-idx ol { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; margin-inline: calc(var(--gutter) * -1); padding-inline: var(--gutter); }
  .wk-idx ol::-webkit-scrollbar { display: none; }
  .wk-idx li { flex: 0 0 44%; scroll-snap-align: start; }
  .wk-ch__num { grid-column: 1 / -1; font-size: clamp(3rem, 2rem + 5vw, 4.5rem); margin-bottom: 20px; }
  .wk-ch__intro { grid-column: 1 / -1; }
  .wk-media__frame { aspect-ratio: 4 / 3; }
  .wk-ch__desc, .wk-ch__facts { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  .wk-idx li { flex-basis: 62%; }
  .wk-intro { text-align: left; }
  .wk-intro__title, .wk-intro__lede { margin-left: 0; }
  .wk-ch__facts > div { grid-template-columns: 76px minmax(0, 1fr); }
}

/* ---------- Reduced motion: no growth, no colour fades ---------- */
@media (prefers-reduced-motion: reduce) {
  .wk-idx a:hover img { scale: 1; }
}