/* =========================
   Base / Reset
========================= */
:root{
  --header-h: 70px;
  --footer-h: 68px; /* Taskleisten-Höhe */
  --bg: #0b1220;
  --card: #101a33;
  --text: #e9eefc;
  --muted: #b7c2e2;
  --brand: #4f8cff;
  --brand2:#53e3a6;
  --border: rgba(255,255,255,.10);
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 18px;
  --max: 1100px;
}

*{ box-sizing: border-box; }

html, body{ height: 100%; }

body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height: 1.5;
  color: var(--text);
  background:
    radial-gradient(1200px 800px at 20% 0%, rgba(79,140,255,.25), transparent 55%),
    radial-gradient(900px 700px at 80% 10%, rgba(83,227,166,.18), transparent 55%),
    var(--bg);

  /* Platz für festen Footer */
  padding-bottom: var(--footer-h);
}

img{ max-width:100%; height:auto; display:block; }
a{ color:inherit; text-decoration:none; }
p{ color:var(--muted); }

.container{
  width:min(var(--max), calc(100% - 2rem));
  margin:0 auto;
}

/* =========================
   Header / Nav
========================= */
.site-header{
  position: sticky;
  top:0;
  z-index:50;
  background: rgba(11,18,32,.72);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--border);
}

.navbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:.85rem 0;
  gap: 1rem;
}

.brand{
  display:flex;
  align-items:center;
  gap:.7rem;
  font-weight:700;
}

.brand img{
  height: 42px;   /* bestimmt die sichtbare Größe */
  width: auto;
  display:block;
}

/* Checkbox NIE sichtbar (steuert nur das Mobile-Menü) */
.nav-toggle{
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

/* Mobile Menü Button: standardmäßig AUS (Desktop) */
.nav-btn{
  display:none;
  align-items:center;
  gap:.55rem;
  padding:.55rem .75rem;
  border-radius:12px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.04);
  color:var(--text);
  cursor:pointer;
}

.burger{
  width:18px;height:12px;
  position: relative;
}
.burger::before,
.burger::after,
.burger span{
  content:"";
  position:absolute;
  left:0; right:0;
  height:2px;
  background: var(--text);
  border-radius: 2px;
}
.burger::before{ top:0; }
.burger span{ top:5px; }
.burger::after{ bottom:0; }

.nav-links{
  display:flex;
  gap:.35rem;
  align-items:center;
}

.nav-links a{
  padding:.55rem .8rem;
  border-radius:12px;
  color:var(--muted);
}

.nav-links a:hover{
  color:var(--text);
  background:rgba(255,255,255,.04);
}

.nav-links a[aria-current="page"]{
  color:var(--text);
  border:1px solid rgba(79,140,255,.35);
  background:rgba(79,140,255,.12);
}

/* Mobile: Button AN, Links als Dropdown */
@media (max-width: 820px){
  .nav-btn{ display:flex; }
  .nav-links{
    display:none;
    position:absolute;
    left:0;
    right:0;
    top:62px;
    padding:.75rem;
    margin:0 1rem 1rem;
    border-radius:16px;
    background: rgba(16,26,51,.95);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    flex-direction:column;
    align-items:stretch;
    gap:.25rem;
  }
  .nav-links a{ width:100%; }
  .site-header .container{ position: relative; }
  .nav-toggle:checked ~ .nav-links{ display:flex; }
}

/* =========================
   Hero
========================= */
.hero{ padding:3.25rem 0 1.5rem; }

.hero-grid{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:1.25rem;
}

.hero-card{
  background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:1.6rem;
}

.hero h1{
  margin:0 0 .65rem;
  font-size:clamp(1.8rem,1.2rem + 2vw,3rem);
}

.badges{
  display:flex;
  flex-wrap:wrap;
  gap:.5rem;
  margin-top:1rem;
}

.badge{
  font-size:.92rem;
  padding:.35rem .6rem;
  border-radius:999px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.04);
  color:var(--muted);
}

.hero-aside{
  background:rgba(16,26,51,.75);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
}

.hero-aside img{
  width:100%;
  height: 240px;
  object-fit:cover;
  border-bottom:1px solid var(--border);
}

.hero-aside .pad{ padding:1.1rem 1.2rem; }

.cta-row{
  display:flex;
  gap:.65rem;
  margin-top:1.2rem;
  flex-wrap:wrap;
}

.btn{
  padding:.7rem 1rem;
  border-radius:14px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.04);
  color:var(--text);
}

.btn.primary{
  border-color:rgba(79,140,255,.45);
  background:linear-gradient(135deg, rgba(79,140,255,.35), rgba(83,227,166,.20));
}

/* =========================
   Sections / Cards
========================= */
.section{ padding:1.2rem 0 2.4rem; }

.cards{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1rem;
}

.card{
  background:rgba(16,26,51,.65);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:1.2rem;
  box-shadow:var(--shadow);
}

/* =========================
   Error pages
========================= */
.error-wrap{
  min-height: calc(100vh - var(--header-h) - var(--footer-h));
  display: grid;
  place-items: center;
  padding: 2rem 0;
}

/* =========================
   Footer (FIXIERT UNTEN)
========================= */
.site-footer{
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 1000;

  border-top: 1px solid var(--border);
  padding: .55rem 0;        /* leicht höher, aber schlank */
  font-size: .95rem;
  color: var(--muted);
  background: rgba(11,18,32,0.96);
  backdrop-filter: blur(6px);
}

.footer-grid{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:1rem;
  flex-wrap:wrap;
}

.footer-links{
  display:flex;
  gap:.9rem;
}

/* =========================
   Responsive
========================= */
@media (max-width:900px){
  .hero-grid{ grid-template-columns:1fr; }
  .cards{ grid-template-columns:1fr; }
}

/* Mobile Footer etwas höher falls er umbricht */
@media (max-width:600px){
  :root{ --footer-h: 96px; }
}

/* Skip-Link nur bei Tastatur-Fokus sichtbar */
.skip-link{
  position: absolute !important;
  left: -9999px !important;
  top: auto !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

.skip-link:focus{
  position: fixed !important;
  left: 1rem !important;
  top: 1rem !important;
  width: auto !important;
  height: auto !important;
  padding: .6rem .9rem !important;
  border-radius: 10px !important;
  background: #000 !important;
  color: #fff !important;
  z-index: 2000 !important;
}