/* ============================================================
   BRANDIUM — case files · case.css
   One strict sequence: hero logotype → logo → colour → social →
   website → app → next. Client colour arrives as --c-* on .case.
   ============================================================ */
.case{--c-bg:#EAEAE5;--c-ink:#131511;--c-ac:#2430E8}
body.case-body{background:var(--bg)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.nav .rx-tag{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);display:flex;align-items:center;gap:10px}
.nav .rx-tag b{color:var(--ac-ink);font-weight:400}
@media(max-width:900px){.nav .rx-tag{display:none}}
.rail{position:fixed;top:0;left:0;height:2px;width:100%;z-index:120;pointer-events:none}
.rail i{display:block;height:100%;width:0%;background:var(--c-ac)}

/* ---------- hero: logotype centred on the brand colour ---------- */
.ch{position:relative;min-height:100svh;display:flex;align-items:center;justify-content:center;background:var(--c-bg);color:var(--c-ink);overflow:hidden}
.ch .crumbs{position:absolute;left:28px;top:96px;display:flex;gap:14px;align-items:center;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;opacity:.7}
.ch .crumbs a:hover{opacity:1}
.ch .crumbs i{width:22px;height:1px;background:currentColor;opacity:.5}
.ch .logo{display:block;max-height:46vh;object-fit:contain;margin-bottom:8vh}
.tile{position:absolute;right:28px;bottom:112px;width:clamp(84px,8vw,120px);aspect-ratio:1/1.08;border:1.5px solid var(--c-ink);padding:9px;display:flex;flex-direction:column;color:var(--c-ink)}
.tile .n{font-family:'Fragment Mono',monospace;font-size:9.5px;display:flex;justify-content:space-between}
.tile .n i{color:var(--c-ac)}
.tile .s{flex:1;display:flex;align-items:center;font-weight:800;font-stretch:112%;font-size:clamp(30px,3.2vw,44px);letter-spacing:-.02em}
.tile .name{font-family:'Fragment Mono',monospace;font-size:8px;letter-spacing:.2em;text-transform:uppercase}
.tile .bar{height:3px;background:var(--c-ac);width:38%;margin-top:5px}
.ch-meta{position:absolute;left:0;right:0;bottom:0;border-top:1px solid color-mix(in srgb,var(--c-ink) 18%,transparent);display:grid;grid-template-columns:repeat(4,1fr);padding:0 28px}
.ch-meta div{padding:16px 18px 16px 0;margin-right:18px;border-right:1px solid color-mix(in srgb,var(--c-ink) 18%,transparent)}
.ch-meta div:last-child{border:0}
.ch-meta .k{display:block;font-family:'Fragment Mono',monospace;font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;opacity:.65;margin-bottom:6px}
.ch-meta .v{font-size:13.5px;line-height:1.35}
.ch-meta .v.f{font-family:'Fragment Mono',monospace;font-size:13px}
@media(max-width:900px){.ch .logo{max-width:72vw!important;margin-bottom:0}.ch .crumbs{top:84px}.tile{display:none}.ch-meta{grid-template-columns:1fr 1fr}.ch-meta div:nth-child(2n){border-right:0}.ch-meta div:nth-child(-n+2){border-bottom:1px solid color-mix(in srgb,var(--c-ink) 18%,transparent)}}

/* ---------- sections ---------- */
.sec{position:relative}
.sec-in{padding:40px 28px 72px;max-width:1440px;margin:0 auto}
@media(max-width:720px){.sec-in{padding:24px 16px 48px}}

.marks{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--ln);border:1px solid var(--ln)}
.mark{aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;padding:14%;position:relative}
.mark img{max-width:100%;max-height:100%;display:block}
.mark .cap{position:absolute;left:14px;bottom:12px;font-family:'Fragment Mono',monospace;font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;opacity:.6;color:#131511;mix-blend-mode:difference;filter:invert(1)}
@media(max-width:720px){.marks{grid-template-columns:1fr}.mark{aspect-ratio:16/10}}

.swatches{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;background:var(--ln);border:1px solid var(--ln)}
.sw{aspect-ratio:1/1;padding:14px;display:flex;flex-direction:column;justify-content:space-between;cursor:copy;transition:transform .3s var(--ease)}
.sw:hover{transform:scale(1.03);z-index:2}
.sw .nm{font-size:12.5px;font-weight:600}
.sw .hx{font-family:'Fragment Mono',monospace;font-size:10.5px;letter-spacing:.1em;opacity:.75}
.sw.copied .hx::after{content:"  COPIED"}

.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.grid4 figure{aspect-ratio:4/5;overflow:hidden;background:var(--card);border:1px solid var(--ln)}
.grid4 img{width:100%;height:100%;object-fit:cover;display:block}
@media(max-width:900px){.grid4{grid-template-columns:repeat(2,1fr);gap:10px}}

.browser{background:var(--card);border:1px solid var(--ln);overflow:hidden;box-shadow:0 30px 80px -30px rgba(19,21,17,.25)}
.browser .bar{display:flex;gap:6px;padding:11px 14px;border-bottom:1px solid var(--ln)}
.browser .bar i{width:9px;height:9px;border-radius:50%;background:var(--ln)}
.browser img{width:100%;display:block}
.web2{display:grid;grid-template-columns:2fr 1fr;gap:14px;margin-top:14px;align-items:start}
.phone{border-radius:36px;padding:10px;background:#131511;box-shadow:0 30px 80px -30px rgba(19,21,17,.4);max-width:360px;margin:0 auto}
.phone img{width:100%;display:block;border-radius:27px;aspect-ratio:390/844;object-fit:cover;object-position:top}
@media(max-width:900px){.web2{grid-template-columns:1fr}}

.grid-app{display:grid;gap:22px}
.grid-app.c4{grid-template-columns:repeat(4,1fr)}
.grid-app.c3{grid-template-columns:repeat(3,1fr);max-width:1100px;margin:0 auto}
.grid-app figure{aspect-ratio:900/1947}.grid-app.c3 figure{aspect-ratio:390/844}.grid-app img{width:100%;height:100%;object-fit:contain;display:block}
@media(max-width:900px){.grid-app.c4,.grid-app.c3{grid-template-columns:repeat(2,1fr);gap:14px}}

/* ---------- next ---------- */
.next{border-top:1px solid var(--ln)}
.next .sec-in{padding:72px 28px}
.next .big{display:block}
.next .big .lbl{display:block;margin-bottom:16px}
.next .big .t{display:block;font-weight:800;font-stretch:125%;text-transform:uppercase;font-size:clamp(40px,8vw,128px);line-height:.92;letter-spacing:-.03em;transition:color .3s}
.next .big:hover .t{color:var(--ac-ink)}
.next .row{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center;margin-top:36px}

/* ---------- reveals ---------- */
.case .rv{opacity:0;transform:translateY(18px);transition:opacity .8s var(--ease-out),transform .8s var(--ease-out)}
.case .rv.in{opacity:1;transform:none}
.grid4 figure.rv,.grid-app figure.rv{transition-delay:calc(var(--i,0)*.05s)}
@media(prefers-reduced-motion:reduce){.case .rv{opacity:1;transform:none}}