/* Case studies + work cards (RootXcess). Scoped: .rk-case, .rk-wcard, .rk-dev */
.rk-case__hero{padding:calc(var(--section-y-tight) + 72px) 0 var(--section-y-tight)}
.rk-case__h1{font-size:clamp(2.4rem,5.2vw,4.6rem);line-height:1.02;letter-spacing:-.03em;font-weight:var(--fw-extrabold);color:var(--ink-strong);margin:18px 0 22px;max-width:16ch}
.rk-case__lead{font-size:clamp(1.05rem,1.4vw,1.3rem);line-height:1.6;color:var(--ink-body);max-width:62ch}
.rk-case__actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 36px}
.rk-case__facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;border-top:1px solid var(--border-subtle);padding-top:26px;margin:0}
.rk-case__facts dt{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-muted);font-weight:var(--fw-semibold)}
.rk-case__facts dd{margin:6px 0 0;font-size:clamp(1.8rem,3vw,2.6rem);font-weight:var(--fw-extrabold);color:var(--ram-navy);letter-spacing:-.02em;line-height:1}
.rk-case__fold{padding:0 0 var(--section-y-tight)}
.rk-case__foldframe{border-radius:var(--radius-brand);overflow:hidden;box-shadow:var(--shadow-lg,0 30px 80px -30px rgba(8,46,96,.35));border:1px solid var(--border-subtle);background:#fff}
.rk-case__foldframe img{display:block;width:100%;height:auto}
.rk-case__meta{padding:0 0 var(--section-y-tight)}
.rk-case__metagrid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;border-top:1px solid var(--border-subtle);border-bottom:1px solid var(--border-subtle);padding:28px var(--gutter)}
.rk-case__k{display:block;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-muted);font-weight:var(--fw-semibold);margin-bottom:10px}
.rk-case__metagrid p{margin:0;font-weight:var(--fw-semibold);color:var(--ink-strong)}
.rk-case__metagrid p.rk-case__muted{font-weight:400;color:var(--ink-body);margin-top:4px;font-size:14px}
.rk-case__metagrid ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.rk-case__metagrid li{font-size:13px;padding:5px 10px;border-radius:var(--radius-pill);background:var(--surface-raised);border:1px solid var(--border-subtle);color:var(--ink-strong)}
.rk-case__story{padding:0 0 var(--section-y-tight)}
.rk-case__cols{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,72px)}
.rk-case__cols h2,.rk-case__devhead h2,.rk-case__built h2{font-size:clamp(1.7rem,3vw,2.5rem);letter-spacing:-.02em;margin:12px 0 16px;color:var(--ink-strong)}
.rk-case__cols p{color:var(--ink-body);line-height:1.65;margin:0 0 14px;max-width:58ch}
.rk-case__devices{padding:var(--section-y-tight) 0;background:var(--surface-raised)}
.rk-case__devhead{max-width:60ch;margin-bottom:38px}
.rk-case__devhead p{color:var(--ink-body)}
.rk-case__devgrid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,.7fr);gap:clamp(24px,3.5vw,56px);align-items:start}
/* device frames */
.rk-dev{margin:0}
.rk-dev__tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.rk-dev__tab{font:inherit;font-size:13px;font-weight:var(--fw-semibold);padding:7px 12px;border-radius:var(--radius-pill);border:1px solid var(--border-subtle);background:#fff;color:var(--ink-body);cursor:pointer;transition:background .15s,color .15s,border-color .15s}
.rk-dev__tab:hover{border-color:var(--ram-navy);color:var(--ram-navy)}
.rk-dev__tab.is-on{background:var(--ram-navy);border-color:var(--ram-navy);color:#fff}
.rk-dev__shell{position:relative;background:#0b1f3a;border-radius:18px;padding:10px;box-shadow:0 40px 90px -40px rgba(8,46,96,.55),0 2px 0 rgba(255,255,255,.08) inset}
.rk-dev--desk .rk-dev__shell{padding:0;overflow:hidden;border-radius:14px}
.rk-dev__bar{display:flex;align-items:center;gap:14px;height:42px;padding:0 16px;background:#132a4b;color:rgba(255,255,255,.75);font-size:12.5px}
.rk-dev__dots{display:inline-flex;gap:6px}.rk-dev__dots i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.22)}
.rk-dev__url{flex:1;text-align:center;background:rgba(255,255,255,.08);border-radius:8px;padding:6px 10px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rk-dev__vp{position:relative;overflow-y:auto;overflow-x:hidden;background:#fff;scrollbar-width:thin;scrollbar-color:rgba(8,46,96,.35) transparent;overscroll-behavior:contain;outline:none}
.rk-dev__vp:focus-visible{box-shadow:0 0 0 3px var(--ram-lime) inset}
.rk-dev__vp img{display:block;width:100%;height:auto}
.rk-dev--desk .rk-dev__vp{height:clamp(380px,46vw,640px)}
.rk-dev--phone .rk-dev__shell{border-radius:44px;padding:40px 12px 14px;max-width:340px;margin:0 auto}
.rk-dev--phone .rk-dev__vp{height:clamp(560px,64vw,700px);border-radius:22px 22px 34px 34px}
.rk-dev__notch{position:absolute;top:12px;left:50%;transform:translateX(-50%);width:96px;height:20px;border-radius:12px;background:#000;z-index:2;box-shadow:0 0 0 2px rgba(255,255,255,.06)}
.rk-dev__hint{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);font-size:12px;padding:6px 12px;border-radius:var(--radius-pill);background:rgba(8,46,96,.86);color:#fff;pointer-events:none;opacity:.95;transition:opacity .3s;white-space:nowrap}
.rk-dev.is-touring .rk-dev__hint{opacity:0}
.rk-dev figcaption{font-size:13px;color:var(--ink-muted);margin-top:12px}
.rk-case__built{padding:var(--section-y-tight) 0}
.rk-case__built>.rk-sp__inner>h2{max-width:22ch}
.rk-case__grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:34px}
.rk-case__cell{background:var(--surface-raised);border:1px solid var(--border-subtle);border-radius:var(--radius-brand);padding:22px}
.rk-case__cell h3{font-size:1.05rem;margin:0 0 8px;color:var(--ink-strong);letter-spacing:-.01em}
.rk-case__cell p{margin:0;color:var(--ink-body);font-size:14.5px;line-height:1.6}
.rk-case__launch{background:var(--ram-navy);color:var(--ink-inverse);padding:var(--section-y-tight) 0}
.rk-case__launch h2{color:#fff;font-size:clamp(1.7rem,3vw,2.5rem);letter-spacing:-.02em;margin:12px 0 16px}
.rk-case__launch p{color:var(--ink-inverse-muted);line-height:1.65;max-width:56ch}
.rk-case__steps{list-style:none;margin:0;padding:0;display:grid;gap:0}
.rk-case__steps li{display:flex;gap:18px;align-items:baseline;padding:16px 0;border-top:1px solid var(--border-on-dark);color:var(--ink-inverse);font-weight:var(--fw-semibold)}
.rk-case__steps li:last-child{border-bottom:1px solid var(--border-on-dark)}
.rk-case__steps span{font-size:12px;letter-spacing:.14em;color:var(--ram-lime);font-weight:var(--fw-semibold)}
/* work card (index + home rail) */
.rk-wcard{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:clamp(18px,3vw,40px);align-items:center;background:var(--surface-raised);border-radius:var(--radius-brand);padding:clamp(16px,2.2vw,30px);box-shadow:var(--shadow-md);cursor:pointer;transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s}
.rk-wcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg,0 30px 60px -30px rgba(8,46,96,.4))}
.rk-wcard:focus-visible{outline:3px solid var(--ram-lime);outline-offset:3px}
.rk-wcard__media{position:relative;border-radius:14px;overflow:hidden;aspect-ratio:16/10;background:#eef2f6}
.rk-wcard__media>img:first-child{display:block;width:100%;height:100%;object-fit:cover;object-position:top}
.rk-wcard__phone{position:absolute;right:4%;bottom:-6%;width:24%;border-radius:14px;border:4px solid #0b1f3a;box-shadow:0 20px 40px -20px rgba(0,0,0,.5);background:#fff}
.rk-wcard__badge{position:absolute;top:14px;left:14px;background:var(--ram-lime);color:var(--ram-navy);font-size:12px;font-weight:var(--fw-semibold);padding:6px 12px;border-radius:var(--radius-pill);letter-spacing:.04em}
.rk-wcard__cat{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-muted);font-weight:var(--fw-semibold)}
.rk-wcard h3{font-size:clamp(1.6rem,2.6vw,2.3rem);letter-spacing:-.02em;margin:8px 0 10px;color:var(--ink-strong)}
.rk-wcard p{color:var(--ink-body);margin:0 0 16px;max-width:46ch;line-height:1.6}
.rk-wcard--dark{background:rgba(255,252,248,.06);border:1px solid var(--border-on-dark);box-shadow:none;flex:none;width:min(1040px,78vw);min-width:340px}
.rk-wcard--dark h3{color:var(--ink-inverse)}.rk-wcard--dark p{color:var(--ink-inverse-muted)}.rk-wcard--dark .rk-wcard__cat{color:var(--ram-powder)}
.rk-work__rail.is-swipe .rk-wcard--dark{width:min(86vw,560px);grid-template-columns:1fr}
@media (max-width:1000px){.rk-case__facts,.rk-case__metagrid,.rk-case__grid{grid-template-columns:repeat(2,minmax(0,1fr))}.rk-case__devgrid{grid-template-columns:1fr}.rk-dev--phone .rk-dev__shell{margin:0}}
@media (max-width:820px){.rk-case__cols{grid-template-columns:1fr}.rk-wcard{grid-template-columns:1fr}.rk-dev--desk .rk-dev__vp{height:62vw}.rk-dev--phone .rk-dev__vp{height:540px}}
@media (max-width:520px){.rk-case__facts,.rk-case__grid{grid-template-columns:1fr}.rk-case__metagrid{grid-template-columns:1fr;gap:18px}}
@media (prefers-reduced-motion:reduce){.rk-wcard{transition:none}}

/* multi-case additions */
.rk-case__status{display:inline-flex;align-items:center;padding:8px 14px;border-radius:var(--radius-pill);background:var(--ram-lime);color:var(--ram-navy);font-size:13px;font-weight:var(--fw-semibold)}
.rk-case__status.is-progress,.rk-wcard__badge.is-progress{background:var(--ram-orange,#f0813a);color:#fff}
.rk-case__devgrid--solo{grid-template-columns:minmax(0,1fr)}
.rk-workpg__cards{display:grid;gap:22px}
.rk-case__more{padding:var(--section-y-tight) 0 0}
.rk-case__morerow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:22px}
.rk-case__morecard{font:inherit;text-align:left;background:var(--surface-raised);border:1px solid var(--border-subtle);border-radius:var(--radius-brand);padding:12px;cursor:pointer;display:grid;gap:8px;transition:transform .3s,box-shadow .3s}
.rk-case__morecard:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.rk-case__morecard img{display:block;width:100%;aspect-ratio:16/10;object-fit:cover;object-position:top;border-radius:10px}
.rk-case__morecard span{font-weight:var(--fw-semibold);color:var(--ink-strong)}
.rk-case__morecard small{color:var(--ink-muted);font-size:12px}
@media (max-width:1000px){.rk-case__morerow{grid-template-columns:repeat(2,minmax(0,1fr))}}