/* ============================================================
   Case-study shared styles — „Raster" design system (2026-07)
   Neo-swiss editorial warm: paper, hairlines, Archivo + Fraunces
   ============================================================ */
:root{
  --background:#f7f2e9;
  --paper:#f2ecdf;
  --card:#fffdf7;
  --foreground:#1d1b14;
  --muted:#6f6a5b;
  --muted-2:#6f6a5b;
  --border:rgba(29,27,20,.16);
  --border-strong:rgba(29,27,20,.3);
  --primary:#1d1b14;
  --primary-fg:#f7f2e9;
  --accent:#e8431f;          /* vermilion */
  --accent-text:#bf3819;
  --accent-soft:#ffe3d6;
  --apricot:#ffb48a;
  --emerald:#0c7a4b;
  --maxw:1000px;
  --disp:'Archivo',system-ui,sans-serif;
  --serif:'Fraunces',Georgia,serif;
  --sans:'Instrument Sans',system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);background:var(--background);color:var(--foreground);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 28px}
.serif{font-family:var(--serif);font-style:italic;font-weight:340;letter-spacing:0}
.italic{font-style:italic}
.skip-link{position:absolute;left:-9999px;top:8px;z-index:200;background:var(--primary);color:var(--primary-fg);padding:10px 16px;font-size:14px;font-weight:600}
.skip-link:focus{left:16px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.cs-impact-value{font-variant-numeric:tabular-nums}
[data-lang="en"] .de{display:none}
[data-lang="de"] .en{display:none}
#cs-main{scroll-margin-top:96px}

/* ---------- nav (unified across all pages) ---------- */
header.nav{position:fixed;top:0;left:0;right:0;z-index:60;background:rgba(247,242,233,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{font-family:var(--disp);font-weight:800;font-size:16px;letter-spacing:-.01em;display:flex;align-items:center}
.brand .dot{display:none}
.brand sup,.brand::after{content:"+";color:var(--accent);font-weight:800;margin-left:1px}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{font-size:13px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);transition:color .2s;position:relative}
.nav-links a:hover{color:var(--foreground)}
.nav-right{display:flex;align-items:center;gap:14px}
.lang-toggle{display:inline-flex;border:1px solid var(--border-strong);overflow:hidden;background:var(--card)}
.lang-toggle a,.lang-toggle button{border:none;background:transparent;padding:6px 12px;font-size:12px;font-weight:700;color:var(--muted);cursor:pointer;font-family:var(--disp);letter-spacing:.06em;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}
.lang-toggle .active,.lang-toggle a[aria-current="page"],.lang-toggle button.active{background:var(--primary);color:var(--primary-fg)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:13px;letter-spacing:.08em;text-transform:uppercase;padding:13px 24px;cursor:pointer;border:1px solid transparent;font-family:var(--disp);transition:all .2s}
.btn-primary{background:var(--primary);color:var(--primary-fg)}
.btn-primary:hover{background:var(--accent)}
.btn-outline{border-color:var(--border-strong);color:var(--foreground)}
.btn-outline:hover{border-color:var(--foreground)}

/* ---------- mobile nav ---------- */
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--border-strong);background:transparent;cursor:pointer;align-items:center;justify-content:center;padding:0}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:"";display:block;width:18px;height:2px;background:var(--foreground);transition:transform .3s,opacity .2s;position:relative}
.nav-toggle span::before{position:absolute;top:-6px}
.nav-toggle span::after{position:absolute;top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}
.mobile-menu{display:none;position:fixed;top:68px;left:0;right:0;bottom:0;z-index:55;background:var(--background);flex-direction:column;overflow-y:auto}
.mobile-menu.open{display:flex}
.mobile-menu .wrap{max-width:none;padding:0;display:flex;flex-direction:column;flex:1}
.mobile-menu nav{display:flex;flex-direction:column}
.mobile-menu nav a{display:flex;align-items:center;gap:16px;font-family:var(--disp);font-size:24px;font-weight:800;letter-spacing:-.02em;text-transform:uppercase;padding:24px 28px;border-bottom:1px solid var(--border);color:var(--foreground)}
.mobile-menu nav a .idx{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--accent-text)}
.mobile-menu nav a .arr{margin-left:auto;font-size:20px;color:var(--muted)}
.mm-contact{margin-top:auto;border-top:1px solid var(--border-strong);background:var(--paper);padding:28px 28px 44px}
.mm-contact p{font-size:15px;color:var(--muted);max-width:44ch;margin-bottom:22px}
.mm-contact p em{font-family:var(--serif);font-style:italic;color:var(--foreground)}
.mm-contact .row{display:flex;flex-direction:column;gap:10px}
.mm-contact .btn{width:100%}
@media(max-width:880px){.nav-links{display:none}.nav-toggle{display:inline-flex}}

/* ---------- page frame (matches index 1280 grid) ---------- */
header.nav .wrap{max-width:1280px}
main{max-width:1280px;margin:0 auto;border-left:1px solid var(--border);border-right:1px solid var(--border)}

/* ---------- case header ---------- */
.cs-header{padding:118px 28px 44px;text-align:left}
.crumbs{position:fixed;z-index:40;display:flex;align-items:center;gap:10px;font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);background:var(--background)}
.crumbs a{color:var(--muted);transition:color .2s}
.crumbs a:hover{color:var(--foreground)}
.crumbs .sep{color:var(--border-strong);font-weight:400}
.crumbs .here{color:var(--foreground);font-weight:700}
/* desktop: vertical box docked to the left frame hairline, scrolls with you */
@media(min-width:981px){
  .crumbs{left:max(0px,calc(50vw - 640px));top:50%;transform:translateY(-50%);writing-mode:vertical-rl;padding:18px 9px;border:1px solid var(--border);border-left:none;gap:12px}
}
/* mobile: sticks under the header, revealed by swiping up */
@media(max-width:980px){
  .crumbs{left:0;right:0;top:68px;padding:11px 22px;border-bottom:1px solid var(--border);transform:translateY(-110%);transition:transform .32s cubic-bezier(.2,.7,.2,1);white-space:nowrap;overflow-x:auto}
  .crumbs.show{transform:none}
  @media (prefers-reduced-motion:reduce){.crumbs{transition:none}}
}
.cs-badge{display:inline-flex;align-items:center;gap:12px;font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.18em;color:var(--accent-text);margin-bottom:18px;padding:0;background:transparent;border-radius:0}
.cs-kind{display:inline-block;background:var(--accent);color:#fff;padding:4px 9px;font-size:10.5px;letter-spacing:.16em;line-height:1.2}
.cs-title{font-family:var(--disp);font-weight:800;font-size:clamp(38px,6vw,68px);line-height:.98;letter-spacing:-.035em;margin:0 0 20px;color:var(--foreground);max-width:20ch;overflow-wrap:break-word}
.cs-subtitle{font-family:var(--serif);font-style:italic;font-weight:340;font-size:clamp(19px,2.4vw,24px);line-height:1.35;color:var(--muted);max-width:56ch;margin:0}

/* ---------- hero image: offset frame + color block ---------- */
.cs-hero{width:100%;max-width:1200px;margin:0 auto 80px;padding:0 28px;position:relative}
.cs-hero::before{content:"";position:absolute;left:28px;bottom:-16px;width:34%;height:38%;background:var(--accent);z-index:0}
.cs-hero picture{position:relative;z-index:1;width:calc(100% - 20px);margin-left:20px;display:block}
.cs-hero img{width:100%;height:auto;border:1px solid var(--border);display:block;object-fit:cover;aspect-ratio:16/9;filter:grayscale(.15) contrast(1.03)}
.cs-hero > img{position:relative;z-index:1;width:calc(100% - 20px);margin-left:20px}

/* ---------- at-a-glance facts bar ---------- */
.cs-meta{max-width:720px;margin:0 auto 56px;padding:0 28px}
.cs-meta-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;background:transparent;border:1px solid var(--border);border-radius:0;overflow:hidden}
.cs-meta-cell{background:transparent;padding:18px;min-width:0;border-right:1px solid var(--border)}
.cs-meta-cell:last-child{border-right:none}
.cs-meta-cell .k{font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-text);margin-bottom:6px}
.cs-meta-cell .v{font-size:14.5px;font-weight:500;color:var(--foreground);line-height:1.35}

/* ---------- body ---------- */
.cs-body{max-width:720px;margin:0 auto;padding:0 28px 90px}
.cs-section{margin-bottom:60px}
.cs-section h3{font-family:var(--disp);font-weight:800;font-size:clamp(24px,3.4vw,32px);letter-spacing:-.02em;margin-bottom:24px;color:var(--foreground);display:flex;align-items:center;gap:14px}
.cs-section h3::before{content:"";display:block;width:26px;height:3px;background:var(--accent);flex:0 0 auto}
.cs-section p{font-size:16px;color:var(--foreground);margin-bottom:16px}
.cs-section ul{list-style:none;padding-left:0;margin-bottom:24px}
.cs-section ul li{position:relative;padding-left:24px;margin-bottom:12px;font-size:16px;color:var(--foreground)}
.cs-section ul li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:0;background:var(--accent)}

/* ---------- impact ---------- */
.cs-impact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:0;margin:30px 0;border:1px solid var(--border)}
.cs-impact-card{background:transparent;padding:26px 22px;border-radius:0;border:none;border-right:1px solid var(--border);text-align:left;transition:background .3s}
.cs-impact-card:last-child{border-right:none}
.cs-impact-card:hover{transform:none;box-shadow:none;background:var(--card)}
.cs-impact-value{font-family:var(--disp);font-weight:800;font-size:clamp(30px,3.4vw,40px);letter-spacing:-.03em;color:var(--foreground);line-height:1.1;overflow-wrap:break-word;background:linear-gradient(transparent 58%,var(--apricot) 58%);display:inline}
.cs-impact-label{font-size:12px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-top:12px;display:block}
.cs-disclaimer{background:transparent;border:1px solid var(--border);border-left:4px solid var(--accent);padding:16px 20px;border-radius:0;font-size:14.5px;color:var(--muted);margin-bottom:40px}

/* ---------- pull quote ---------- */
.cs-quote{max-width:720px;margin:0 auto 60px;padding:0 28px}
.cs-quote blockquote{font-family:var(--serif);font-style:italic;font-weight:340;font-size:clamp(24px,3.4vw,32px);line-height:1.3;color:var(--foreground);border-left:3px solid var(--accent);padding:6px 0 6px 26px;margin:0;letter-spacing:0}
.cs-quote cite{display:block;margin-top:14px;font-style:normal;font-family:var(--disp);font-weight:600;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}

/* ---------- prev/next pager ---------- */
.cs-pager{max-width:none;margin:80px 0 0;padding:0;border-top:1px solid var(--border);display:grid;grid-template-columns:1fr 1fr;gap:0}
.cs-pager a{display:flex;flex-direction:column;gap:4px;padding:28px;border:none;border-right:1px solid var(--border);border-radius:0;background:transparent;min-width:0;margin:0;transition:background .25s}
.cs-pager a:last-child{border-right:none}
.cs-pager a:hover{transform:none;box-shadow:none;background:var(--card)}
@media(max-width:600px){.cs-pager{grid-template-columns:1fr}.cs-pager a{border-right:none;border-bottom:1px solid var(--border)}.cs-pager a:last-child{border-bottom:none}.cs-pager .next{text-align:left;align-items:flex-start}}
.cs-pager .dir{font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-text)}
.cs-pager .ttl{font-family:var(--disp);font-size:16px;font-weight:700;color:var(--foreground);letter-spacing:-.01em}
.cs-pager .next{text-align:right;align-items:flex-end}

/* ---------- career proof cards ---------- */
.proof-note{margin-top:18px;font-size:14px;color:var(--muted)}
.proof-grid{display:grid;grid-template-columns:1fr;gap:0;margin-top:28px;border:1px solid var(--border)}
.proof-card{background:transparent;border:none;border-bottom:1px solid var(--border);border-radius:0;padding:26px 24px;transition:background .25s}
.proof-card:last-child{border-bottom:none}
.proof-card:hover{background:var(--card)}
.proof-card h4{font-family:var(--disp);font-size:19px;line-height:1.3;margin-bottom:6px;font-weight:700;letter-spacing:-.01em}
.proof-card .meta{font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-text);margin-bottom:12px}
.proof-card p{font-size:15px;color:var(--foreground);margin-bottom:12px}
.proof-tags{display:flex;flex-wrap:wrap;gap:0;margin-top:14px}
.proof-tags span{font-size:12px;font-weight:500;color:var(--muted);border:1px solid var(--border);border-radius:0;padding:6px 12px;background:transparent;margin:-1px 0 0 -1px}

/* ---------- footer ---------- */
.foot{max-width:1280px;margin:0 auto;padding:24px 28px;border-top:1px solid var(--border);border-left:1px solid var(--border);border-right:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted);flex-wrap:wrap;gap:16px}
.foot a:hover{color:var(--foreground)}

@media(max-width:880px){.cs-hero::before{display:none}.cs-hero picture,.cs-hero > img{width:100%;margin-left:0}}
@media(max-width:680px){.cs-hero img{aspect-ratio:9/16}.cs-meta-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.cs-meta-cell:nth-child(2n){border-right:none}.cs-meta-cell:nth-child(-n+2){border-bottom:1px solid var(--border)}.cs-title{font-size:38px}.cs-subtitle{font-size:18px}.cs-impact-grid{grid-template-columns:1fr}.cs-impact-card{border-right:none;border-bottom:1px solid var(--border)}.cs-impact-card:last-child{border-bottom:none}}
@media(max-width:600px){.foot{flex-direction:column;align-items:flex-start}}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}*{scroll-behavior:auto !important}}