/* =========================================================
   SECTION — Work scroll (Koto sticky-scroll showcase)
   Left column pins with the active project's title + descrip-
   tion and a "now playing" chip; the right column scrolls
   through large media cards. main.js initStickyWork() builds
   the cards and syncs the active project as each hits center.
   ========================================================= */

.kw-layout {
  display: grid;
  grid-template-columns: minmax(190px, 0.32fr) 1fr;
  gap: var(--space-grid-lg);
  align-items: start;
  /* Full-bleed: meta aligns to the page shell on the left, media runs almost
     to the right edge (Koto-style wide media). */
  padding-left: max(var(--space-page-x), var(--full-bleed-gutter));
  padding-right: clamp(16px, 2vw, 28px);
}

/* ---- Sticky meta column ---- */
.kw-meta {
  position: sticky;
  top: var(--sticky-top);
  align-self: start;
  min-height: calc(100svh - var(--sticky-offset));
  display: flex;
  flex-direction: column;
  gap: var(--space-row-md);
}

.kw-eyebrow {
  margin: 0 0 var(--space-row-md);
  font-size: var(--type-micro);
  font-weight: 700;
  letter-spacing: var(--tracking-kicker);
  text-transform: uppercase;
  opacity: 0.5;
}

.kw-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--type-heading-lg);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-heading);
  text-wrap: balance;
}

.kw-desc {
  margin: 22px 0 0;
  max-width: 40ch;
  line-height: var(--leading-body);
  opacity: 0.66;
  font-size: var(--type-body-lg);
}

/* A counter shows progress through the set, Koto-style. */
.kw-counter {
  margin-top: 18px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--type-small);
  letter-spacing: var(--tracking-ui);
  opacity: 0.45;
}

.kw-counter b {
  color: var(--pr-rocket);
  opacity: 1;
}

/* Quick crossfade when the active project changes. */
.kw-title,
.kw-desc {
  transition: opacity 0.4s var(--ease);
}

.kw-meta.is-swapping .kw-title,
.kw-meta.is-swapping .kw-desc {
  opacity: 0.18;
}

/* Now-playing chip pinned to the bottom of the meta column. */
.kw-now {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: var(--space-row-md);
  padding-top: var(--space-row-lg);
  border-top: 1px solid color-mix(in srgb, var(--page-fg), transparent 86%);
}

.kw-now img {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-media);
  object-fit: cover;
  flex-shrink: 0;
}

.kw-now-text {
  display: flex;
  flex-direction: column;
  gap: calc(var(--space-row-xs) / 4);
  min-width: 0;
}

.kw-now-text strong {
  font-weight: 600;
  font-size: var(--type-body);
}

.kw-now-text span {
  font-size: var(--type-tiny);
  letter-spacing: var(--tracking-meta);
  text-transform: uppercase;
  opacity: 0.5;
}

/* ---- Scrolling media stack ---- */
.kw-stack {
  display: grid;
  gap: var(--space-grid-md);
  /* Top/bottom room so the first and last projects can scroll to viewport
     centre while their text shows (active project stays centred). */
  padding-block: var(--space-media-stack);
}

.kw-card {
  transition: opacity var(--duration-medium) var(--ease), filter var(--duration-medium) var(--ease);
}

/* When JS is syncing, the card crossing centre stays sharp; the rest dim back
   so focus follows the scroll (Koto behaviour). */
.kw-stack.is-synced .kw-card:not(.is-active) {
  opacity: 0.4;
  filter: saturate(0.85);
}

.kw-card-media {
  position: relative;
  display: block;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: var(--radius-media);
  background: color-mix(in srgb, var(--page-fg), transparent 88%);
  color: inherit;
}

.kw-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--duration-slower) var(--ease);
}

.kw-card-media:hover img,
.kw-card-media:focus-visible img {
  transform: scale(1.04);
}

.kw-viewcase {
  position: absolute;
  inset: 0;
  margin: auto;
  width: max-content;
  height: max-content;
  display: inline-flex;
  align-items: center;
  gap: var(--space-row-xs);
  padding: calc(var(--space-row-sm) - 1px) var(--space-row-md);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--pr-paper), transparent 8%);
  color: var(--pr-ink);
  font-size: var(--type-micro);
  font-weight: 700;
  letter-spacing: var(--tracking-button);
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--duration-hover-fast) var(--ease), transform var(--duration-hover-fast) var(--ease);
}

.kw-card-media:hover .kw-viewcase,
.kw-card-media:focus-visible .kw-viewcase {
  opacity: 1;
  transform: translateY(0);
}

.kw-card-label {
  display: grid;
  grid-template-columns: minmax(92px, 0.24fr) 1fr auto;
  gap: var(--space-grid-md);
  align-items: baseline;
  padding-top: clamp(14px, 1.8vw, 22px);
  color: inherit;
  text-decoration: none;
}

.kw-card-label span,
.kw-card-label em {
  font-size: var(--type-tiny);
  font-style: normal;
  font-weight: 700;
  letter-spacing: var(--tracking-meta);
  line-height: var(--leading-body-tight);
  text-transform: uppercase;
  opacity: 0.5;
  transition: color var(--duration-hover-fast) var(--ease), opacity var(--duration-hover-fast) var(--ease);
}

.kw-card-label strong {
  font-family: var(--font-display);
  font-size: var(--type-card);
  font-weight: 700;
  letter-spacing: var(--tracking-heading-soft);
  line-height: var(--leading-display);
  transition: color var(--duration-hover-fast) var(--ease), transform var(--duration-medium) var(--ease);
}

.kw-card-label:hover span,
.kw-card-label:focus-visible span,
.kw-card-label:hover em,
.kw-card-label:focus-visible em {
  color: var(--pr-rocket);
  opacity: 1;
}

.kw-card-label:hover strong,
.kw-card-label:focus-visible strong {
  color: var(--pr-rocket);
  transform: translateX(6px);
}

.kw-playpause {
  position: absolute;
  right: 16px;
  bottom: 14px;
  font-size: var(--type-micro);
  letter-spacing: var(--tracking-meta);
  opacity: 0.65;
  color: var(--pr-paper);
  mix-blend-mode: difference;
  pointer-events: none;
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .kw-layout {
    grid-template-columns: 1fr;
    gap: var(--space-stack-lg);
    padding-left: var(--space-page-x);
    padding-right: var(--space-page-x);
  }

  .kw-meta {
    position: static;
    min-height: 0;
  }

  .kw-now {
    margin-top: 4px;
  }

  .kw-stack {
    padding-block: 0;
  }

  .kw-card-label {
    grid-template-columns: 1fr;
    gap: var(--space-row-xs);
  }

  /* No focus-dim on mobile (no centred-scroll). */
  .kw-stack.is-synced .kw-card:not(.is-active) {
    opacity: 1;
    filter: none;
  }
}