:root{
  --blue:#2563EB;
  --green:#16A34A;
  --dark:#0F172A;
  --bg:#000000;

  --card:#0B0F17;
  --card2:#0F172A;
  --border:rgba(255,255,255,.10);
  --muted:rgba(255,255,255,.70);
  --text:#FFFFFF;

  --footer:#1F2937;   /* grau */
  --footerText:rgba(255,255,255,.75);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
}

a{color:#fff;text-decoration:none}
a:hover{text-decoration:underline}

.container{max-width:980px;margin:0 auto;padding:24px}

/* Topbar: Logo links klein + Back + Tabs */
.topbar{
  position:sticky; top:0; z-index:50;
  background:rgba(0,0,0,.78);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--border);
}
.topbar-inner{
  max-width:980px; margin:0 auto;
  display:flex; align-items:center; justify-content:space-between;
  gap:14px;
  padding:12px 16px;
}

.left-group{
  display:flex; align-items:center; gap:12px;
  min-width:0;
}

/* kleines Logo oben links */
.logo-mini{
  height:26px;
  width:auto;
  display:block;
}

.back-btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 10px;
  border-radius:10px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.06);
  color:#fff;
  font-weight:700;
  white-space:nowrap;
}
.back-btn:hover{background:rgba(255,255,255,.10); text-decoration:none}

.back-icon{
  width:12px;height:12px; display:inline-block;
  border-left:2px solid #fff;
  border-bottom:2px solid #fff;
  transform:rotate(45deg);
  margin-left:2px;
}

.tabs{
  display:flex; flex-wrap:wrap; gap:8px;
  justify-content:flex-end;
}
.tab{
  padding:8px 12px;
  border-radius:999px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.06);
  font-weight:700;
  color:#fff;
}
.tab.active{
  border-color:transparent;
  background:linear-gradient(135deg, rgba(37,99,235,.22), rgba(22,163,74,.22));
}
.tab:hover{text-decoration:none; background:rgba(255,255,255,.10)}

/* Cards */
.card{
  background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.04));
  border:1px solid var(--border);
  border-radius:16px;
  padding:18px;
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}

h2{margin:0 0 10px 0;font-size:22px}
h3{margin:18px 0 8px 0;font-size:16px}
p{margin:0 0 10px 0;line-height:1.55;color:var(--text)}
.muted{color:var(--muted)}

.hr{
  height:1px;background:var(--border);
  margin:14px 0;
}

ul{margin:8px 0 12px 0;padding-left:0;list-style:none}
li{margin:6px 0;padding-left:18px;position:relative;line-height:1.5}
li:before{content:"–";position:absolute;left:0;color:var(--muted);font-weight:700}

/* Footer grau */
.footer{
  margin-top:24px;
  background:var(--footer);
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 16px;
}
.footer .inner{
  max-width:980px; margin:0 auto;
  display:flex; flex-direction:column; gap:10px;
}
.footer a{color:#fff}
.footer .small{
  color:var(--footerText);
  font-size:13px;
  line-height:1.45;
}

/* Mobile tweaks */
@media (max-width:520px){
  .tabs{justify-content:flex-start}
  .logo-mini{height:22px}
  .back-btn{padding:7px 9px}
}