/* Shared stylesheet for /case-studies/ pages. Homepage keeps its own inline CSS. */
:root{
  --bg:#0A0A0B;
  --surface:#141417;
  --fg:#F4F4F5;
  --muted:#8b8b93;
  --faint:#75757e;
  --border:rgba(255,255,255,0.09);
  --accent:#4D8DF6;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;
  --serif:'Newsreader',Georgia,serif;
  --maxw:1120px;
  --pad:clamp(20px,5vw,40px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:86px}
body{background:var(--bg);color:var(--fg);font-family:var(--font);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;overflow-x:hidden;overflow-x:clip}
::selection{background:var(--accent);color:#0A0A0B}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}
h1,h2,h3{font-weight:600;letter-spacing:-0.02em;line-height:1.05;text-wrap:balance}
.serif-it{font-family:var(--serif);font-style:italic;font-weight:400;letter-spacing:-0.01em;color:var(--accent)}
a:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.cta:focus-visible{outline:2px solid var(--accent);outline-offset:4px}

.cta{
  position:relative;overflow:hidden;display:inline-flex;align-items:center;gap:9px;
  height:54px;padding:0 26px;background:var(--accent);color:#0A0A0B;
  border-radius:11px;border:1px solid var(--accent);
  font-size:16px;font-weight:600;letter-spacing:0.01em;line-height:1;
  cursor:pointer;white-space:nowrap;transition:transform .2s cubic-bezier(.25,1,.5,1);
}
.cta::after{
  content:"";position:absolute;top:0;bottom:0;left:-30%;width:55%;z-index:0;
  background:linear-gradient(105deg,transparent 22%,rgba(0,0,0,.20) 40%,rgba(255,255,255,1) 50%,rgba(0,0,0,.20) 60%,transparent 78%);
  transform:translateX(-220%) skewX(-14deg);pointer-events:none;transition:transform .6s cubic-bezier(.35,0,.2,1);
}
.cta__label{position:relative;z-index:1}
.cta .cta__arrow{position:relative;z-index:1;transition:transform .25s cubic-bezier(.2,.7,.3,1)}
.cta:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(0,0,0,.45)}
.cta:hover::after{transform:translateX(360%) skewX(-14deg)}
.cta:hover .cta__arrow{transform:translateX(5px)}
.cta:active{transform:translateY(0)}
.cta--sm{height:46px;padding:0 20px;font-size:15px}

.nav{position:sticky;top:0;z-index:50;background:rgba(10,10,11,.82);background:color-mix(in srgb,var(--bg) 82%, transparent);backdrop-filter:saturate(140%) blur(10px);-webkit-backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--border)}
.nav__row{position:relative;display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:inline-flex;align-items:center;gap:11px;font-weight:600;letter-spacing:-0.01em;font-size:15px}
.brand svg{width:26px;height:26px;flex:none}
.nav__links{display:none;align-items:center;gap:34px;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%)}
.nav__links a{position:relative;color:var(--muted);font-size:14px;font-weight:500;transition:color .18s}
.nav__links a::after{content:"";position:absolute;left:0;right:0;bottom:-5px;height:1.5px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .25s cubic-bezier(.2,.7,.3,1)}
.nav__links a:hover{color:var(--fg)}
.nav__links a:hover::after{transform:scaleX(1)}
.nav__right{display:flex;align-items:center;gap:18px}
.brand span{display:none}
@media(min-width:560px){ .brand span{display:inline} .nav__right{gap:22px} }
@media(min-width:640px){ .nav__links{display:flex} }

.case{position:relative;max-width:940px;margin-inline:auto;padding-block:clamp(40px,6vw,72px) clamp(56px,8vw,110px)}
.case::before{
  content:"";position:absolute;top:0;height:520px;left:50%;width:100vw;transform:translateX(-50%);z-index:0;pointer-events:none;
  background:radial-gradient(72% 85% at 50% 0%, rgba(77,141,246,0.10) 0%, rgba(60,110,200,0.06) 35%, rgba(10,10,11,0) 65%);
}
.case > *{position:relative;z-index:1}
@keyframes caseIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
html.js .case{animation:caseIn .6s cubic-bezier(.16,1,.3,1) both}
.case__back{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--muted);transition:color .18s}
.case__back:hover{color:var(--fg)}
.case__back svg{transition:transform .25s cubic-bezier(.2,.7,.3,1)}
.case__back:hover svg{transform:translateX(-4px)}
.case__h1{margin-top:26px;font-size:clamp(29px,4.4vw,48px);letter-spacing:-0.025em;line-height:1.14}
.case__img{margin-top:clamp(28px,4vw,44px);border-radius:18px;overflow:hidden;border:1px solid var(--border);background:var(--surface);aspect-ratio:16/9}
.case__img img{width:100%;height:100%;object-fit:cover}
.case__tags{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px}
.tag{display:inline-flex;align-items:center;gap:7px;font-size:10.5px;font-weight:500;letter-spacing:0.13em;text-transform:uppercase;color:var(--muted);padding:6px 12px;border:1px solid var(--border);border-radius:999px}
.tag .dot{width:5px;height:5px;border-radius:50%;background:var(--accent);flex:none}
.case__id{margin-top:clamp(30px,5vw,48px)}
.case__id h2{font-size:clamp(24px,3vw,32px)}
.case__meta{margin-top:8px;font-size:15.5px;color:var(--muted)}
.case-sec{margin-top:clamp(34px,5vw,54px)}
.case-sec__label{font-size:12px;font-weight:500;letter-spacing:0.14em;text-transform:uppercase;color:rgba(77,141,246,0.8)}
.case-list{margin-top:16px;list-style:none;display:flex;flex-direction:column;gap:12px}
.case-list li{position:relative;padding-left:22px;font-size:18px;line-height:1.6;color:color-mix(in srgb, var(--muted) 45%, var(--fg));text-wrap:pretty;max-width:62ch}
.case-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.case__body{margin-top:14px;font-size:18px;line-height:1.65;color:var(--muted);max-width:62ch;text-wrap:pretty}
.case__bridge{margin-top:clamp(36px,5vw,56px);padding-left:18px;border-left:2px solid var(--accent);font-size:clamp(18px,2.2vw,21px);line-height:1.6;color:var(--fg);max-width:56ch;text-wrap:pretty}

.final{position:relative;text-align:center;padding-block:clamp(64px,9vw,140px);border-top:1px solid var(--border)}
.final::before{content:"";position:absolute;top:0;bottom:0;left:50%;width:100vw;transform:translateX(-50%);z-index:0;pointer-events:none;background:radial-gradient(80% 120% at 50% 50%, rgba(77,141,246,0.09) 0%, rgba(10,10,11,0) 70%)}
.final > *{position:relative;z-index:1}
.final__line{font-size:clamp(30px,4.6vw,54px);font-weight:600;letter-spacing:-0.025em;margin-bottom:22px}
.final__sub{margin:0 auto 32px;max-width:56ch;font-size:clamp(17px,2.2vw,21px);color:var(--muted);line-height:1.6;text-wrap:pretty}
.final .cta{margin-inline:auto}

.footer{border-top:1px solid var(--border);padding-block:36px;color:var(--faint)}
.footer__bottom{display:flex;flex-wrap:wrap;gap:16px 28px;align-items:center;justify-content:space-between}
.footer__brand{display:inline-flex;align-items:center;gap:10px;font-size:14px;font-weight:500;color:var(--muted)}
.footer__brand svg{width:22px;height:22px}
.footer__nav{display:flex;flex-wrap:wrap;gap:18px}
.footer__nav a{font-size:14px;color:var(--muted);transition:color .18s}
.footer__nav a:hover{color:var(--fg)}
.footer__note{font-size:13px;letter-spacing:0.01em}

@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}