/* ============================================================
   LO STUDIO — Case Study (dark hero · light body)
   extends styles.css
   ============================================================ */

/* ---------- HERO (dark) ---------- */
.cs-hero { position: relative; padding: 110px 0 50px; overflow: hidden; background: radial-gradient(130% 90% at 50% -10%, #232605 0%, #141414 58%); color: #fff; }
.cs-hero #csStars { position: absolute; inset: 0; z-index: 1; }
.cs-hero .cs-glow { position: absolute; left: 50%; top: 30%; transform: translate(-50%,-50%); width: 760px; height: 760px; z-index: 1; filter: blur(20px); opacity: .8; pointer-events: none; }
.cs-back { display: flex; width: max-content; align-items: center; gap: 8px; margin-bottom: 22px; font-family: var(--mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--d-ink-3); transition: color .2s, gap .2s; }
.cs-back:hover { color: var(--link); gap: 12px; }
.cs-hero .eyebrow { margin-top: 4px; }
.cs-title { font-size: clamp(40px, 5.4vw, 74px); font-weight: 800; letter-spacing: -.04em; line-height: .98; margin-top: 18px; max-width: 16ch; }
.cs-sum { margin-top: 22px; font-size: clamp(17px, 1.5vw, 20px); line-height: 1.55; color: var(--d-ink-2); max-width: 75%; }
.cs-meta { display: flex; flex-wrap: wrap; gap: 44px; margin-top: 36px; padding-top: 28px; border-top: 1px solid var(--d-line); }
.cs-meta .k { font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--d-ink-4); }
.cs-meta .v { font-size: 16px; font-weight: 600; margin-top: 7px; letter-spacing: -.01em; color: #fff; }

/* ---------- BODY (light) ---------- */
.cs-body { padding: 64px 0 56px; background: var(--paper); }
.cs-prose { max-width: none; margin-top: 22px; }
.cs-prose p { font-size: 16.5px; line-height: 1.65; color: var(--ink-2); margin-bottom: 18px; }
.cs-prose p:last-child { margin-bottom: 0; }
.cs-prose b { color: var(--ink); font-weight: 600; }

.cs-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 20px; }
.cs-stat { padding: 26px 22px; border-radius: 16px; background: var(--paper-2); border: 1px solid var(--line); }
.cs-stat .n { font-size: 36px; font-weight: 800; letter-spacing: -.03em; color: var(--ink); }
.cs-stat .l { font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-4); margin-top: 8px; }

/* ---------- GALLERY (light) · masonry, no cropping ---------- */
.cs-gallery { columns: 2; column-gap: 16px; margin-top: 28px; }
.cs-shot { position: relative; border-radius: 16px; overflow: hidden; border: 1px solid var(--line); background: var(--panel); break-inside: avoid; margin-bottom: 16px; }
/* grid variant: row-major placement (item 1 = top-left, item 2 = top-right) */
.cs-gallery.grid { columns: auto; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
.cs-gallery.grid .cs-shot { margin-bottom: 0; }
.cs-gallery.grid .cs-shot.full { grid-column: 1 / -1; }
.cs-shot img { display: block; width: 100%; height: auto; }
.cs-shot .mk { width: 100%; height: auto; aspect-ratio: 4 / 3; }
.cs-shot .cap { position: absolute; right: 14px; left: auto; bottom: 12px; z-index: 3; font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: #fff; padding: 5px 9px; border-radius: 7px; background: rgba(8,12,22,.6); backdrop-filter: blur(6px); border: 1px solid rgba(255,255,255,.12); }

/* very tall pieces (full-length pages, emails): capped tile, hover scrolls through */
.cs-shot.scrolly { max-height: 700px; }
.cs-shot.scrolly img { transition: transform .6s ease; will-change: transform; }
.cs-shot.scrolly::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 70px; z-index: 2; background: linear-gradient(to top, rgba(8,12,22,.35), transparent); pointer-events: none; transition: opacity .4s; }
.cs-shot.scrolly:hover::after { opacity: 0; }
.cs-shot .scrollhint { position: absolute; right: 14px; top: 12px; z-index: 3; font-family: var(--mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: #fff; padding: 4px 8px; border-radius: 7px; background: rgba(8,12,22,.55); backdrop-filter: blur(6px); border: 1px solid rgba(255,255,255,.12); opacity: .85; transition: opacity .3s; }
.cs-shot.scrolly:hover .scrollhint { opacity: 0; }

/* ---------- VIDEOS (stacked, full-width — like the live portfolio pages) ---------- */
.cs-videos { display: grid; gap: 18px; margin-top: 28px; }
.cs-videos.vertical { grid-template-columns: repeat(3, 1fr); gap: 16px; max-width: 880px; margin-left: auto; margin-right: auto; }
.cs-videos.vertical .cs-video { aspect-ratio: 9 / 16; }
@media (max-width: 620px){
  .cs-videos.vertical { grid-template-columns: 1fr; max-width: 320px; }
}
.cs-videos + .cs-gallery { margin-top: 18px; }
.cs-video { position: relative; aspect-ratio: 16 / 9; border-radius: 18px; overflow: hidden; border: 1px solid var(--line); background: #0a0c12; }
.cs-video img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s ease; }
.cs-video[data-yt] { cursor: pointer; }
.cs-video[data-yt]:hover img { transform: scale(1.02); }
.cs-video .vplay { position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); width: 76px; height: 76px; border-radius: 50%; display: grid; place-items: center; z-index: 2; color: #fff; background: rgba(8,12,22,.55); backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,.25); transition: transform .25s, background .25s, color .25s, border-color .25s; pointer-events: none; }
.cs-video .vplay svg { margin-left: 3px; }
.cs-video[data-yt]:hover .vplay { transform: translate(-50%,-50%) scale(1.1); background: var(--link); color: var(--link-ink); border-color: var(--link); }
.cs-video .cap { position: absolute; left: 14px; bottom: 12px; z-index: 3; font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: #fff; padding: 5px 9px; border-radius: 7px; background: rgba(8,12,22,.6); backdrop-filter: blur(6px); border: 1px solid rgba(255,255,255,.12); }
.cs-video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; z-index: 4; }
.cs-video.playing img, .cs-video.playing .vplay, .cs-video.playing .cap { display: none; }

/* ---------- FEATURED STAGE VIDEO (matches the other project videos) ---------- */
.cs-stage { background: var(--bg); padding: 40px 0; }
.cs-stage .cs-stage-video { width: 100%; aspect-ratio: 16 / 9; margin: 0 auto; }
.cs-stage .cs-stage-video .vplay { width: 96px; height: 96px; }
.cs-stage .cs-stage-video .cap { left: auto; right: 18px; bottom: 18px; font-size: 11px; padding: 7px 12px; }
@media (max-width: 620px){
  .cs-stage .cs-stage-video .vplay { width: 66px; height: 66px; }
}

/* ---------- NEXT ---------- */
.cs-next { padding: 72px 0 104px; background: var(--paper); }
.cs-nextcard { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; padding: 44px; border-radius: 22px; overflow: hidden; background: var(--bg); color: #fff; border: 1px solid var(--d-line); }
.cs-nextcard .glow { position: absolute; right: -10%; top: -40%; width: 460px; height: 460px; }
.cs-nextcard .k { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; }
.cs-nextcard h3 { font-size: clamp(24px, 3vw, 38px); font-weight: 700; letter-spacing: -.03em; margin-top: 12px; color: #fff; }

@media (max-width: 1000px){
  .cs-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px){
  .cs-sum { max-width: 100%; }
}
@media (max-width: 620px){
  .cs-hero { padding: 90px 0 40px; }
  .cs-sum { font-size: 16px; }
  .cs-meta { gap: 20px 32px; margin-top: 28px; padding-top: 22px; }
  .cs-body { padding-top: 44px; }
  .cs-stats { grid-template-columns: 1fr; gap: 12px; }
  .cs-stat { padding: 22px 20px; }
  .cs-stat .n { font-size: 30px; }
  .cs-gallery { columns: 1; }
  .cs-gallery.grid { grid-template-columns: 1fr; }
  .cs-prose p { font-size: 15.5px; }
  .cs-next { padding: 56px 0 80px; }
  .cs-nextcard { padding: 28px 24px; gap: 20px; }
}