:root {
  --header-h: 64px;
  --footer-h: 56px;

  --container-max: 1200px; /* Desktop */
  --container-pad: 1rem;

  --bg: #0b0d10;
  --panel: #12161b;
  --text: #e8eef5;
  --muted: #a9b4c0;
  --accent: #4ea1ff;
  --ring: #8bc1ff33;
}

@media (max-width: 1199px) { :root { --container-max: 960px; } } /* Tablet */
@media (max-width: 767px)  {
  :root { /* Phone */
    --header-h: 56px;
    --footer-h: 48px;
    --container-max: 100%;
    --container-pad: 0.875rem;
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.45;
  color: var(--text);
  background: radial-gradient(1200px 800px at 20% -10%, #17202a 0%, transparent 60%),
              radial-gradient(1000px 700px at 120% 120%, #11181f 0%, transparent 60%),
              var(--bg);
  color-scheme: dark;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.skip-link {
  position: absolute; left: -9999px; top: -9999px;
}
.skip-link:focus {
  left: 1rem; top: 1rem; z-index: 10000;
  background: #fff; color: #000; padding: .5rem .75rem; border-radius: .5rem;
}

/* Header/Footer fixiert */
.site-header,
.site-footer {
  position: fixed; left: 0; right: 0;
  backdrop-filter: blur(8px);
  background: linear-gradient(180deg, #0e1216dd 0%, #0e1216cc 100%);
  border-bottom: 1px solid #1f2730;
  z-index: 999;
}
.site-header { top: 0; height: var(--header-h); }
.site-footer {
  bottom: 0; height: var(--footer-h);
  border-top: 1px solid #1f2730; border-bottom: none;
}

.bar {
  height: 100%;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
}

.container {
  width: min(var(--container-max), 100% - 2 * var(--container-pad));
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* Abstand damit Content nicht unter Bars liegt */
.site-main {
  min-height: 100vh;
  padding-top: calc(var(--header-h) + 1rem + env(safe-area-inset-top, 0px));
  padding-bottom: calc(var(--footer-h) + 1rem + env(safe-area-inset-bottom, 0px));
}

/* Branding & Navigation */
.brand {
  font-weight: 700; letter-spacing: .3px;
  background: linear-gradient(90deg, #cfe9ff, #7fc4ff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.nav-links {
  display: flex; gap: 1rem; list-style: none; padding: 0; margin: 0; flex-wrap: wrap;
}
.nav-links a {
  display: inline-block; padding: .5rem .75rem; border-radius: 999px;
  background: #11161c; border: 1px solid #1f2730;
}
.nav-links a:hover { background: #0f141a; }
.nav-links a.active { outline: 0; box-shadow: 0 0 0 3px var(--ring); }

/* Content */
h1 { margin: 0 0 .5rem; font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem); }
p  { color: var(--muted); max-width: 70ch; }

/* Kartenraster */
.cards {
  margin-top: 1rem;
  display: grid; gap: 1rem;
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 1199px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 767px)  { .cards { grid-template-columns: 1fr; } }

.card {
  background: var(--panel);
  border: 1px solid #1f2730;
  border-radius: 16px;
  padding: 1rem;
  box-shadow: 0 0 0 1px transparent, 0 6px 24px rgba(0,0,0,.25);
}
.card:focus-within, .card:hover {
  outline: 0; box-shadow: 0 0 0 3px var(--ring);
}

.site-footer .bar { justify-content: space-between; }
.foot-links {
  display: flex; gap: .75rem; list-style: none; padding: 0; margin: 0;
}
.foot-links a {
  padding: .35rem .6rem; border-radius: 8px; background: #11161c; border: 1px solid #1f2730;
}

@media (max-width: 767px) {
  .nav-links a, .foot-links a { padding: .6rem .8rem; }
}