/* Nessnet - statisches Stylesheet. Schriften: System-Stack, keine CDN-Einbindung. */
:root{
  --ink:#131c2b;
  --ink-soft:#3d4a5c;
  --muted:#65718257;
  --muted:#657182;
  --line:#e2e7ee;
  --bg:#ffffff;
  --bg-alt:#f5f8fb;
  --brand:#12386b;          /* Kontrast auf Weiss ca. 10,4:1 */
  --brand-dark:#0c2749;
  --brand-soft:#e8f0f9;
  --accent:#0e7490;         /* Kontrast auf Weiss ca. 4,9:1 */
  --radius:14px;
  --shadow:0 1px 2px rgba(19,28,43,.05),0 8px 24px rgba(19,28,43,.06);
  --shadow-lg:0 12px 36px rgba(18,56,107,.16);
  --maxw:1120px;
  --narrow:760px;
  --font:system-ui,-apple-system,'Segoe UI','Helvetica Neue',Arial,sans-serif;
  --serif:Georgia,'Iowan Old Style','Times New Roman',serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:clip}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  line-height:1.72;font-size:17px;-webkit-font-smoothing:antialiased;
  overflow-x:clip;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:underline;text-underline-offset:2px}
a:hover{color:var(--accent)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.wrap.narrow{max-width:var(--narrow)}
.center{text-align:center;margin-top:34px}
.skip{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;
  background:var(--brand);color:#fff;padding:10px 16px;z-index:200}
.skip:focus{position:fixed;left:0;top:0;width:auto;height:auto;clip-path:none;overflow:visible}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:19px;color:var(--ink);text-decoration:none}
.brand img{width:38px;height:38px;border-radius:9px}
.brand small{display:block;font-weight:500;font-size:11.5px;color:var(--muted);letter-spacing:.01em;line-height:1.3;white-space:nowrap}
.menu{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.menu a{color:var(--ink-soft);font-weight:600;font-size:14.5px;padding:9px 12px;border-radius:9px;
  transition:.15s;text-decoration:none;white-space:nowrap}
.menu a:hover,.menu a.active{background:var(--brand-soft);color:var(--brand)}
.menu a.cta{background:var(--brand);color:#fff}
.menu a.cta:hover{background:var(--brand-dark);color:#fff}
.burger{display:none;cursor:pointer;padding:10px;border-radius:9px;border:1px solid var(--line);background:#fff}
.burger span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;transition:.25s}
.nav-toggle{position:absolute;opacity:0;width:0;height:0}
.nav-backdrop{display:none}

/* ---------- Breadcrumbs ---------- */
.crumbs{background:var(--bg-alt);border-bottom:1px solid var(--line);font-size:14px;padding:11px 0}
.crumbs a{color:var(--ink-soft);text-decoration:none}
.crumbs a:hover{color:var(--brand);text-decoration:underline}
.crumbs em{color:var(--muted);font-style:normal;padding:0 4px}
.crumbs span{color:var(--muted)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(165deg,#eef4fb 0%,#e9f2f6 55%,#f5f8fb 100%);
  border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;top:-160px;right:-140px;width:440px;height:440px;
  background:radial-gradient(circle,rgba(18,56,107,.16),transparent 70%);pointer-events:none}
.hero-inner{padding:76px 0 64px;max-width:740px;position:relative}
.page-hero{padding:52px 0 30px;border-bottom:1px solid var(--line);background:var(--bg-alt)}
.eyebrow{display:inline-block;background:#fff;border:1px solid var(--line);color:var(--brand);
  font-weight:700;font-size:12.5px;letter-spacing:.05em;text-transform:uppercase;padding:6px 14px;
  border-radius:999px;box-shadow:var(--shadow)}
.eyebrow a{color:inherit;text-decoration:none}
h1{font-size:clamp(1.85rem,4.4vw,3rem);line-height:1.13;margin:22px 0 16px;letter-spacing:-.02em;
  font-weight:800;overflow-wrap:break-word;hyphens:auto}
.hero h1 .grad{color:var(--accent)}
.lead{font-size:19px;color:var(--ink-soft);margin:0 0 12px}
.meta{color:var(--muted);font-size:14.5px;margin:14px 0 0}
.hero p{font-size:19px;color:var(--ink-soft);margin:0 0 30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:700;font-size:16px;padding:13px 24px;
  border-radius:11px;transition:.18s;border:1px solid transparent;text-decoration:none}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-lg)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- Sections ---------- */
section{padding:58px 0}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:640px;margin:0 auto 40px;text-align:center}
.section-head .kicker{color:var(--accent);font-weight:700;font-size:13px;letter-spacing:.06em;text-transform:uppercase}
.section-head h2{font-size:clamp(1.5rem,3.2vw,2.1rem);margin:10px 0 12px;letter-spacing:-.01em;line-height:1.25}
.section-head p{color:var(--muted);font-size:17px;margin:0}

/* ---------- Cards ---------- */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  box-shadow:var(--shadow);transition:.2s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#c9d9ea}
.card .tag{align-self:flex-start;background:var(--brand-soft);color:var(--brand);font-weight:700;
  font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;padding:5px 11px;border-radius:999px;margin-bottom:15px}
.card h3{font-size:19px;margin:0 0 10px;line-height:1.32}
.card h3 a{color:var(--ink);text-decoration:none}
.card h3 a:hover{color:var(--brand)}
.card p{color:var(--ink-soft);font-size:15.5px;margin:0 0 18px}
.card .more{margin-top:auto;font-weight:700;font-size:15px}
.card .more a{text-decoration:none}

/* ---------- Prose ---------- */
.prose{font-size:17.5px}
.prose h2{font-size:clamp(1.35rem,2.6vw,1.7rem);margin:42px 0 14px;letter-spacing:-.01em;line-height:1.3}
.prose h3{font-size:1.18rem;margin:30px 0 10px}
.prose p{margin:0 0 18px;color:var(--ink-soft)}
.prose strong{color:var(--ink)}
.prose ul,.prose ol{margin:0 0 20px;padding-left:22px;color:var(--ink-soft)}
.prose li{margin-bottom:10px}
.prose em{font-style:italic}
.prose blockquote{margin:24px 0;padding:4px 0 4px 20px;border-left:3px solid var(--brand-soft);
  font-family:var(--serif);font-size:19px;color:var(--ink)}
.prose .table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 20px}
.prose table{border-collapse:collapse;width:100%;min-width:520px;font-size:15.5px}
.prose th,.prose td{border:1px solid var(--line);padding:9px 12px;text-align:left}
.prose th{background:var(--bg-alt)}

.note{background:var(--brand-soft);border:1px solid #cddef0;border-radius:var(--radius);
  padding:24px 26px;margin:34px 0}
.note h3{margin:0 0 8px;font-size:1.05rem;color:var(--brand)}
.note p{margin:0 0 10px;color:var(--ink-soft);font-size:16px}
.note p:last-child{margin-bottom:0}

/* ---------- Link lists ---------- */
.linklist{list-style:none;margin:0;padding:0}
.linklist li{border-bottom:1px solid var(--line);padding:14px 0}
.linklist li:last-child{border-bottom:0}
.linklist a{font-weight:700;text-decoration:none}
.linklist a:hover{text-decoration:underline}
.linklist span{display:block;color:var(--muted);font-size:15px;margin-top:3px}

.arch-block{margin-bottom:46px}
.arch-block h2{font-size:1.4rem;margin:0 0 6px}
.arch-block h2 a{text-decoration:none}
.arch-block > p{color:var(--muted);margin:0 0 14px;font-size:16px}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-dark);color:#c8d6e6;padding:56px 0 24px;font-size:15.5px}
.site-footer .brand{color:#fff}
.site-footer .brand small{color:#9fb5cc}
.site-footer p{color:#c8d6e6;max-width:34em;margin:16px 0 0}
.site-footer a{color:#dce8f4}
.site-footer a:hover{color:#fff}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:34px}
.foot-col h4{color:#fff;font-size:14px;text-transform:uppercase;letter-spacing:.06em;margin:0 0 14px}
.foot-col ul{list-style:none;margin:0;padding:0}
.foot-col li{margin-bottom:9px}
.foot-col a{text-decoration:none}
.foot-col a:hover{text-decoration:underline}
.foot-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:40px;padding-top:20px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:14px;color:#9fb5cc}
.foot-bottom a{color:#9fb5cc}

/* ---------- Breakpoints: aufsteigend nach max-width ---------- */
@media (max-width:900px){
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:760px){
  body{font-size:16.5px}
  section{padding:44px 0}
  .hero-inner{padding:56px 0 48px}
  .burger{display:block}
  /* backdrop-filter macht den Header zum Containing Block fuer position:fixed -
     der Drawer waere dann nur so hoch wie der Header (116px statt Vollbild).
     Deshalb mobil abschalten und stattdessen deckend fuellen. */
  .site-header{backdrop-filter:none;background:#fff}
  .menu{
    position:fixed;top:0;right:0;bottom:0;width:min(310px,86vw);
    background:#fff;border-left:1px solid var(--line);box-shadow:-14px 0 40px rgba(19,28,43,.16);
    flex-direction:column;align-items:stretch;gap:2px;padding:88px 18px 28px;
    transform:translateX(102%);transition:transform .28s ease;z-index:70;overflow-y:auto;
  }
  .menu a{display:block;padding:13px 14px;font-size:16px;border-radius:10px}
  .menu a.cta{text-align:center;margin-top:10px}
  .nav-toggle:checked ~ .menu{transform:translateX(0)}
  .nav-toggle:checked ~ .nav-backdrop{display:block;position:fixed;inset:0;background:rgba(19,28,43,.42);z-index:65}
  .nav-toggle:checked ~ .burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle:checked ~ .burger span:nth-child(2){opacity:0}
  .nav-toggle:checked ~ .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .burger{position:relative;z-index:80}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .lead,.hero p{font-size:17.5px}
}
@media (max-width:420px){
  .brand span{font-size:17px}
  .btn{width:100%;justify-content:center}
}