/* ============================================================
   EXPLORE SECTION — themed to match the rest of the site.
   Prefix: .wim-explore (BEM-style).

   Re-uses the site's design tokens (defined in style.css):
     --accent          #ffe900   (brand yellow)
     --accent-deep     #f0d800
     --light-bg        section bg
     --light-text      dark ink (#0d0d0d-ish)
     --light-border    neutral lines
     --light-bg-alt    subtle surface

   Locally scoped fallbacks under .wim-explore so the section still
   works on pages that don't import style.css.
   ============================================================ */

.wim-explore {
  --we-accent:        var(--accent, #ffe900);
  --we-accent-deep:   var(--accent-deep, #f0d800);
  --we-ink:           var(--light-text, #0d0d0d);
  --we-mute:          var(--light-text-muted, #5a5a64);
  --we-line:          var(--light-border, #ececef);
  --we-line-2:        #dcdce0;
  --we-bg:            var(--light-bg, #ffffff);
  --we-bg-alt:        var(--light-bg-alt, #f7f7f9);
  /* White frame around the video stage — single source of truth.
     Scales with viewport so the frame stays proportional on mobile. */
  --we-frame:         clamp(12px, 2vw, 20px);
  --we-frame-color:   #ffffff;
  /* MP4 macroblock hairline cover thickness. 3 px catches every
     codec/encoder bottom-row artifact in practice. */
  --we-hairline:      3px;

  background: var(--we-bg);
  color: var(--we-ink);
  /* Inherit the site-wide 'Outfit' family. */
  font-family: 'Outfit', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Whole section sits on plain white — no ambient glows, no patterns. */

.wim-explore *,
.wim-explore *::before,
.wim-explore *::after {
  box-sizing: border-box;
}

/* Match the site's container width so the section lines up with
   every other section on the page. Fluid on laptop screens so the
   section never extends past the header column. */
.wim-explore__container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 28px;
  position: relative;
}
@media (max-width: 1700px) {
  .wim-explore__container {
    max-width: calc(100vw - 200px);
    width: 100%;
    padding: 0 24px;
  }
}

/* ============================================================
   Layout — sidebar list + interactive media stage
   The pill-set tag (ex-tag-pill-set) now sits at the top of the
   sidebar nav, just above the numbered list.
   ============================================================ */
.wim-explore__nav .ex-tag-pill-set {
  margin-bottom: 20px;
}

.wim-explore__layout {
  display: grid;
  /* Stage on the LEFT (1fr), nav with pill-set + items on the RIGHT. */
  grid-template-columns: 1fr minmax(320px, 380px);
  gap: clamp(28px, 3.5vw, 48px);
  align-items: start;
}
/* Flip the DOM order (nav comes first in source) so the stage paints
   in column 1 (left) and the nav in column 2 (right). */
.wim-explore__stage { order: 1; }
.wim-explore__nav   { order: 2; }

@media (max-width: 991px) {
  .wim-explore__layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  /* On mobile the stage stays first (top), nav slides below it. */
}

/* ============================================================
   Sidebar list — the 5 numbered component CARDS
   Real card-rows with big decorative numbers, label + sub-label,
   and a play-arrow chip that animates on interaction.
   ============================================================ */
.wim-explore__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.wim-explore__item {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  background: #fff;
  border: 1px solid var(--we-line);
  border-radius: 14px;
  cursor: pointer;
  transition:
    transform 0.3s cubic-bezier(0.2, 0, 0.2, 1),
    background-color 0.25s ease,
    border-color 0.25s ease,
    box-shadow 0.3s ease;
}

.wim-explore__item:hover {
  transform: translateX(-3px);
  border-color: var(--we-ink);
  box-shadow: 0 10px 26px rgba(13, 13, 13, 0.08);
}
.wim-explore__item:focus-visible {
  outline: 2px solid var(--we-ink);
  outline-offset: 2px;
}

/* Big decorative number — like a real "01." label. */
.wim-explore__item-num {
  font-family: 'JetBrains Mono', 'Outfit', monospace, sans-serif;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--we-mute);
  font-variant-numeric: tabular-nums;
  width: 36px;
  text-align: center;
  flex-shrink: 0;
  transition: color 0.3s ease;
}

/* Two-line label block (title + sub-label) */
.wim-explore__item-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.wim-explore__item-label {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--we-ink);
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.wim-explore__item-sub {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--we-mute);
  line-height: 1.3;
  letter-spacing: 0;
}

/* Play-arrow chip on the right — circular, brand-accented, scales on
   hover/active. */
.wim-explore__item-arrow {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #f3f3f5;
  color: var(--we-ink);
  font-size: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition:
    background 0.25s ease,
    color 0.25s ease,
    transform 0.25s ease;
}
.wim-explore__item:hover .wim-explore__item-arrow {
  background: var(--we-ink);
  color: #fff;
  transform: scale(1.06);
}

/* ============================================================
   Active card — dramatic flip to brand yellow background with
   dark text & a strong play-chip in the inverse colour.
   ============================================================ */
.wim-explore__item.is-active {
  background: linear-gradient(135deg, var(--we-accent) 0%, var(--we-accent-deep) 100%);
  border-color: var(--we-accent-deep);
  transform: translateX(-3px);
  box-shadow: none;
}
.wim-explore__item.is-active .wim-explore__item-num {
  color: rgba(13, 13, 13, 0.55);
}
.wim-explore__item.is-active .wim-explore__item-label { color: var(--we-ink); }
.wim-explore__item.is-active .wim-explore__item-sub   { color: rgba(13, 13, 13, 0.7); }
.wim-explore__item.is-active .wim-explore__item-arrow {
  background: var(--we-ink);
  color: var(--we-accent);
  transform: scale(1);
}

/* ============================================================
   Stage — the visual frame holding the base image, videos & dots
   ============================================================ */
.wim-explore__stage {
  position: relative;
}

/* Frame is now an invisible passthrough — no border, no shadow, no rounding.
   The crane image sits directly on the white section background. */
.wim-explore__frame {
  position: relative;
}

/* ============================================================
   Media — the 16:10 stage that holds the crane image, the 5
   videos, the hotspot dots, the badge, the caption pill and the
   close button. Single source of truth for the frame system.
   ============================================================ */
.wim-explore__media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  /* Clip any sub-pixel bleed from object-fit:cover so videos can't
     leak past the white frame on any side during paint. */
  overflow: hidden;
  /* Promote the entire stage to a single GPU compositor layer.
     Every child (image, videos, dots, badge, caption, close) paints
     into this one layer instead of getting promoted individually.
     `will-change: contents` is the explicit "this layer's pixels
     update frequently" hint that gives the compositor permission to
     keep a hardware-accelerated backing store for it. */
  isolation: isolate;
  transform: translateZ(0);
  will-change: contents;
}

/* ============================================================
   Stage badge — corner hint that disappears during playback
   ============================================================ */
.wim-explore__badge {
  position: absolute;
  top: 18px;
  left: 18px;
  z-index: 6;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 14px 8px 11px;
  background: rgba(13, 13, 13, 0.88);
  color: #fff;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 6px 16px rgba(13, 13, 13, 0.18);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
}
.wim-explore__badge i {
  color: var(--we-accent);
  font-size: 12px;
}
.wim-explore__stage.is-playing .wim-explore__badge {
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
}

/* Image (idle backdrop) + the 5 videos share the same painting box.
   `object-fit: cover` makes them fill the inner area, so the white
   frame is visually equal on all four sides regardless of the source
   media's natural aspect ratio. */
.wim-explore__image,
.wim-explore__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: var(--we-frame-color);
  border: var(--we-frame) solid var(--we-frame-color);
  /* display: block + vertical-align: top kill the 1 px inline-element
     descender gap that browsers leave below <video> tags. */
  display: block;
  vertical-align: top;
  transition: opacity 0.32s cubic-bezier(0.4, 0, 0.2, 1);
}

/* GPU compositing is applied ONLY to the active video (and to any
   video mid-crossfade via .is-instant). Promoting all 5 videos to
   their own compositor layer permanently was eating GPU memory and
   causing playback lag — the browser will now create a layer only
   for the clip that's actually moving pixels. */
.wim-explore__video.is-active,
.wim-explore__video.is-instant {
  will-change: opacity;
  transform: translateZ(0);
}

/* MP4 source files have a 1–2 px dark hairline baked into the bottom
   edge of every frame (H.264 macroblock artifact). Neither the border
   nor overflow:hidden catches it because it's part of the pixel data
   itself. Overlay a thin white strip at the inner edge of the bottom
   border to hide it. Positions are derived from --we-frame so the
   cover follows the frame thickness automatically. */
.wim-explore__media::after {
  content: '';
  position: absolute;
  left: var(--we-frame);
  right: var(--we-frame);
  bottom: var(--we-frame);
  height: var(--we-hairline);
  background: var(--we-frame-color);
  z-index: 6;
  pointer-events: none;
}
.wim-explore__image  { opacity: 1; z-index: 1; }

/* Idle videos are visibility:hidden, NOT just opacity:0.
   - opacity:0 = browser still paints + composites + decodes every frame
   - visibility:hidden = browser skips painting entirely, decoder idles
   The transition-delay trick keeps the fading-out video painted for
   the 320 ms it takes to crossfade, then makes it truly hidden — so
   the visual fade is preserved but the steady-state cost is zero. */
.wim-explore__video {
  opacity: 0;
  visibility: hidden;
  z-index: 2;
  pointer-events: none;
  transition: opacity 0.32s cubic-bezier(0.4, 0, 0.2, 1),
              visibility 0s linear 0.32s;
}
.wim-explore__video.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity 0.32s cubic-bezier(0.4, 0, 0.2, 1),
              visibility 0s linear 0s;
}
/* is-instant: shorter 180 ms crossfade between videos. Visibility
   flips immediately in both directions so both clips overlap during
   the crossfade. */
.wim-explore__video.is-instant {
  visibility: visible;
  transition: opacity 0.18s linear,
              visibility 0s linear 0s;
}

.wim-explore__stage.is-playing .wim-explore__image { opacity: 0; }

/* ============================================================
   Hotspot dots
   ============================================================ */
.wim-explore__dot {
  position: absolute;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
  z-index: 5;
  transition:
    transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  transition-delay: calc((var(--i, 1) - 1) * 30ms);
}

.wim-explore__dot-core {
  position: absolute;
  inset: 5px;
  border-radius: 50%;
  background: var(--we-accent);
  color: var(--we-ink);
  font-family: inherit;
  font-weight: 800;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    0 0 0 4px #fff,
    0 0 0 5px rgba(13, 13, 13, 0.12),
    0 8px 18px rgba(13, 13, 13, 0.25),
    0 0 30px rgba(255, 233, 0, 0.35);
  transition: box-shadow 0.3s ease, background 0.3s ease, color 0.3s ease;
}

.wim-explore__dot-pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--we-accent);
  opacity: 0.7;
  animation: wim-explore-pulse 2.4s ease-out infinite;
  pointer-events: none;
}

.wim-explore__dot::after {
  content: attr(data-label);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 12px);
  transform: translateX(-50%) translateY(4px);
  background: var(--we-ink);
  color: #fff;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 7px 12px;
  border-radius: 999px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 1;
}
.wim-explore__dot::before {
  content: '';
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  width: 8px;
  height: 8px;
  background: var(--we-ink);
  transform: translateX(-50%) rotate(45deg);
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.wim-explore__dot:hover { transform: translate(-50%, -50%) scale(1.12); }
.wim-explore__dot:hover .wim-explore__dot-core {
  box-shadow:
    0 0 0 3px #fff,
    0 0 0 4px var(--we-ink),
    0 8px 18px rgba(13, 13, 13, 0.28);
}
.wim-explore__dot:hover::after { opacity: 1; transform: translateX(-50%) translateY(0); }
.wim-explore__dot:hover::before { opacity: 1; }

.wim-explore__dot:focus-visible { outline: none; }
.wim-explore__dot:focus-visible .wim-explore__dot-core {
  box-shadow:
    0 0 0 3px #fff,
    0 0 0 6px var(--we-ink);
}

.wim-explore__stage.is-playing .wim-explore__dot {
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(0.55);
  transition-delay: calc((5 - var(--i, 1)) * 30ms);
}
/* Stop the pulse animation while a video is playing — the dots are
   invisible (opacity: 0) anyway, so the animation was just costing
   the compositor recalc work every frame without showing anything. */
.wim-explore__stage.is-playing .wim-explore__dot-pulse {
  animation-play-state: paused;
}

@keyframes wim-explore-pulse {
  0%   { transform: scale(1);   opacity: 0.7; }
  100% { transform: scale(2.1); opacity: 0;   }
}

/* ============================================================
   Close button
   ============================================================ */
.wim-explore__close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
  z-index: 12;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.8) rotate(-90deg);
  transition:
    opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1),
    visibility 0.35s,
    transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.wim-explore__close-bg {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #fff;
  box-shadow:
    0 0 0 1px rgba(13, 13, 13, 0.06),
    0 8px 22px rgba(13, 13, 13, 0.20);
  transition: background 0.25s ease;
}

.wim-explore__close-icon {
  position: relative;
  width: 22px;
  height: 22px;
  color: var(--we-ink);
  pointer-events: none;
  transition: color 0.25s ease, transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.wim-explore__stage.is-playing .wim-explore__close {
  opacity: 1;
  visibility: visible;
  transform: scale(1) rotate(0deg);
  transition-delay: 0.05s;
}

.wim-explore__close:hover .wim-explore__close-bg { background: var(--we-ink); }
.wim-explore__close:hover .wim-explore__close-icon { color: var(--we-accent); transform: rotate(90deg); }
.wim-explore__close:active { transform: scale(0.94); }

.wim-explore__close:focus-visible { outline: none; }
.wim-explore__close:focus-visible .wim-explore__close-bg {
  box-shadow:
    0 0 0 3px var(--we-accent),
    0 8px 22px rgba(13, 13, 13, 0.20);
}

/* ============================================================
   Caption pill (during playback)
   ============================================================ */
.wim-explore__caption {
  position: absolute;
  left: 18px;
  bottom: 18px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 9px 18px 9px 9px;
  background: var(--we-ink);
  border-radius: 999px;
  z-index: 12;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition:
    opacity 0.35s ease,
    visibility 0.35s,
    transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  max-width: calc(100% - 100px);
  box-shadow: 0 10px 28px rgba(13, 13, 13, 0.25);
}

.wim-explore__stage.is-playing .wim-explore__caption {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition-delay: 0.05s;
}

.wim-explore__caption-num {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  background: var(--we-accent);
  color: var(--we-ink);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11.5px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.wim-explore__caption-divider {
  width: 1px;
  height: 14px;
  background: rgba(255, 255, 255, 0.25);
}

.wim-explore__caption-text {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.005em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
  .wim-explore { padding: 72px 0; }

  .wim-explore__dot { width: 36px; height: 36px; }
  .wim-explore__dot-core { font-size: 13px; inset: 3px; }
  .wim-explore__dot::after { font-size: 12px; padding: 6px 10px; }

  .wim-explore__close { top: 12px; right: 12px; width: 44px; height: 44px; }
  .wim-explore__close-icon { width: 19px; height: 19px; }

  .wim-explore__caption { left: 12px; bottom: 12px; padding: 8px 16px 8px 8px; }
  .wim-explore__caption-num { width: 26px; height: 26px; font-size: 11px; }
  .wim-explore__caption-text { font-size: 13px; }
}

@media (max-width: 480px) {
  .wim-explore { padding: 56px 0; }

  .wim-explore__item { gap: 12px; padding: 14px 14px; }
  .wim-explore__item-num { font-size: 17px; width: 28px; }
  .wim-explore__item-arrow { width: 28px; height: 28px; }

  .wim-explore__dot { width: 38px; height: 38px; }
  .wim-explore__dot-core { font-size: 13px; inset: 4px; }
  .wim-explore__badge { top: 10px; left: 10px; padding: 6px 12px 6px 9px; font-size: 11.5px; }

  .wim-explore__caption {
    left: 10px;
    bottom: 10px;
    padding: 6px 14px 6px 6px;
    gap: 10px;
  }
  .wim-explore__caption-num { width: 24px; height: 24px; font-size: 10.5px; }
  .wim-explore__caption-text { font-size: 12.5px; }

  .wim-explore__close { top: 10px; right: 10px; width: 40px; height: 40px; }
  .wim-explore__close-icon { width: 17px; height: 17px; }
}

@media (min-width: 1400px) {
  .wim-explore__media { aspect-ratio: 16 / 9.5; }
}

/* ============================================================
   Reduced motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .wim-explore__dot-pulse { animation: none; }
  .wim-explore *,
  .wim-explore *::before,
  .wim-explore *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}