/* MPU Berg – minimal, seriös, mobile-first */

:root{
  --bg: #0b0c0f;
  --surface: #11131a;
  --surface-2: #151826;
  --text: #f2f4f8;
  --muted: #b7bfcc;
  --line: rgba(255,255,255,.10);
  --accent: #9bd3ff;         /* dezenter Akzent */
  --accent-2: #78b7ff;
  --ok: #7ee2b8;
  --warn: #ffd79a;
  --danger: #ffb4b4;

  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 18px 60px rgba(0,0,0,.45);
  --max: 1140px;

  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  font-family: var(--font);
  background: radial-gradient(1200px 700px at 15% 0%, rgba(155,211,255,.12), transparent 55%),
              radial-gradient(900px 600px at 90% 20%, rgba(120,183,255,.10), transparent 55%),
              var(--bg);
  color: var(--text);
  line-height: 1.55;
}

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

img{ max-width: 100%; height: auto; display: block; }

.container{
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 18px;
}

.skip-link{
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--text);
  color: #000;
  padding: 10px 12px;
  border-radius: 10px;
  z-index: 9999;
}
.skip-link:focus{ left: 10px; }

header{
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(11,12,15,.72);
  border-bottom: 1px solid var(--line);
}

.nav{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 0;
}

.brand{
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 180px;
}
.brand img{
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255,255,255,.06);
  padding: 8px;
}
.brand .name{
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.brand .name strong{ font-size: 14px; letter-spacing: .2px; }
.brand .name span{ font-size: 12px; color: var(--muted); }

.navlinks{
  display: none;
  gap: 14px;
  align-items: center;
}
.navlinks a{
  font-size: 14px;
  color: var(--muted);
  padding: 10px 10px;
  border-radius: 10px;
}
.navlinks a[aria-current="page"]{
  color: var(--text);
  background: rgba(155,211,255,.10);
  border: 1px solid rgba(155,211,255,.18);
  text-decoration: none;
}
.navlinks a:hover{
  color: var(--text);
  background: rgba(255,255,255,.06);
  text-decoration: none;
}

.nav-cta{
  display: flex;
  gap: 10px;
  align-items: center;
}

.button{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: transform .08s ease, background .15s ease, border-color .15s ease;
}
.button:hover{
  background: rgba(255,255,255,.10);
  border-color: rgba(255,255,255,.22);
  text-decoration: none;
}
.button:active{ transform: translateY(1px); }

.button.primary{
  background: linear-gradient(180deg, rgba(155,211,255,.22), rgba(155,211,255,.12));
  border-color: rgba(155,211,255,.30);
}
.button.primary:hover{
  background: linear-gradient(180deg, rgba(155,211,255,.28), rgba(155,211,255,.14));
  border-color: rgba(155,211,255,.38);
}

.button.small{ padding: 10px 12px; border-radius: 11px; }

.hero{
  padding: 36px 0 18px;
}
.hero-grid{
  display: grid;
  gap: 16px;
  align-items: start;
}
.card{
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-main{
  padding: 22px;
}
.kicker{
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.04);
}
.kicker strong{ color: var(--text); font-weight: 700; }

h1{
  margin: 14px 0 10px;
  font-size: 30px;
  line-height: 1.15;
  letter-spacing: -0.2px;
}
.lead{
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  max-width: 58ch;
}
.hero-points{
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.hero-points li{
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 10px;
  align-items: start;
  color: var(--muted);
  font-size: 14px;
}
.dot{
  width: 10px;
  height: 10px;
  margin-top: 5px;
  border-radius: 999px;
  background: rgba(155,211,255,.75);
  box-shadow: 0 0 0 4px rgba(155,211,255,.12);
}

.hero-actions{
  display: flex;
  gap: 10px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.hero-aside{
  padding: 18px;
}
.aside-title{
  margin: 0 0 10px;
  font-size: 15px;
}
.badges{
  display: grid;
  gap: 10px;
}
.badge{
  padding: 12px;
  border-radius: 14px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.10);
}
.badge strong{
  display: block;
  font-size: 14px;
  margin-bottom: 2px;
}
.badge span{
  display: block;
  font-size: 13px;
  color: var(--muted);
}

.section{
  padding: 20px 0;
}
.section h2{
  margin: 0 0 10px;
  font-size: 22px;
  letter-spacing: -0.2px;
}
.section p{
  margin: 0;
  color: var(--muted);
  max-width: 75ch;
}

.grid-2{
  display: grid;
  gap: 14px;
}
.grid-3{
  display: grid;
  gap: 14px;
}
.feature{
  padding: 18px;
}
.feature h3{
  margin: 0 0 8px;
  font-size: 16px;
}
.feature p{
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.form-wrap{
  padding: 18px;
}
.form-wrap h2{
  margin: 0 0 8px;
}
.form-note{
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 14px;
  max-width: 80ch;
}
form{
  display: grid;
  gap: 12px;
}
.field{
  display: grid;
  gap: 6px;
}
label{
  font-size: 13px;
  color: var(--muted);
}
input, select, textarea{
  width: 100%;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(11,12,15,.35);
  color: var(--text);
  outline: none;
}
textarea{ min-height: 120px; resize: vertical; }
input:focus, select:focus, textarea:focus{
  border-color: rgba(155,211,255,.42);
  box-shadow: 0 0 0 4px rgba(155,211,255,.12);
}
.hint{
  font-size: 12px;
  color: var(--muted);
}

.checkbox{
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 10px;
  align-items: start;
  color: var(--muted);
  font-size: 13px;
}
.checkbox input{
  width: 18px;
  height: 18px;
  margin-top: 2px;
}

.form-actions{
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.form-actions .hint{
  margin: 0;
}

.pagehead{
  padding: 26px 0 10px;
}
.pagehead h1{
  font-size: 28px;
  margin: 0 0 8px;
}
.breadcrumb{
  color: var(--muted);
  font-size: 13px;
}
.content{
  padding: 10px 0 26px;
}
.prose{
  padding: 18px;
}
.prose h2{
  margin: 0 0 10px;
  font-size: 20px;
}
.prose h3{
  margin: 16px 0 8px;
  font-size: 16px;
}
.prose p, .prose li{
  color: var(--muted);
  font-size: 14px;
}
.prose ul{
  margin: 10px 0 0;
  padding-left: 18px;
}
.prose a{
  color: var(--accent);
}

.steps{
  margin-top: 12px;
  display: grid;
  gap: 12px;
}
.step{
  padding: 16px;
}
.step strong{
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
}
.step span{
  display: block;
  color: var(--muted);
  font-size: 14px;
}

footer{
  border-top: 1px solid var(--line);
  padding: 18px 0 28px;
  background: rgba(11,12,15,.55);
}
.footer-grid{
  display: grid;
  gap: 14px;
}
.footer-grid .links{
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
}
.footer-grid .links a{
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid transparent;
}
.footer-grid .links a:hover{
  background: rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.10);
  text-decoration: none;
}
small{
  color: var(--muted);
}

/* Responsive */
@media (min-width: 860px){
  .navlinks{ display: flex; }
  .hero-grid{
    grid-template-columns: 1.3fr .7fr;
    gap: 16px;
  }
  .grid-2{ grid-template-columns: 1fr 1fr; }
  .grid-3{ grid-template-columns: 1fr 1fr 1fr; }
  h1{ font-size: 38px; }
  .hero-main{ padding: 28px; }
  .hero-aside{ padding: 22px; }
  .form-wrap{ padding: 22px; }
  .prose{ padding: 22px; }
  .footer-grid{
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}