/* ===== Farben & Grundwerte ===== */
:root {
  --bg: #05070d;
  --bg-2: #0b1020;
  --card: rgba(255, 255, 255, 0.04);
  --line: rgba(255, 255, 255, 0.09);
  --text: #f5f7fb;
  --muted: #9aa3b5;
  --blue: #2f7bff;
  --blue-2: #6aa6ff;
  --radius: 22px;
  --max: 1100px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* ===== Navigation ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 10;
  background: rgba(5, 7, 13, 0.72);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.logo { font-weight: 600; letter-spacing: -0.01em; }
.logo span { color: var(--blue-2); }
.nav ul { display: flex; gap: 28px; list-style: none; font-size: 0.9rem; color: var(--muted); }
.nav ul a:hover { color: var(--text); }
.menu-btn { display: none; background: none; border: 0; color: var(--text); font-size: 1.4rem; cursor: pointer; }

/* ===== Hero ===== */
.hero {
  min-height: 100vh; display: grid; place-items: center; text-align: center;
  padding: 120px 20px 80px;
  background:
    radial-gradient(60% 50% at 50% 35%, rgba(47, 123, 255, 0.28), transparent 70%),
    var(--bg);
}
.eyebrow { color: var(--blue-2); font-weight: 500; letter-spacing: 0.02em; margin-bottom: 14px; }
.hero h1 {
  font-size: clamp(2.8rem, 9vw, 6.2rem);
  font-weight: 700; letter-spacing: -0.045em; line-height: 1.02;
  background: linear-gradient(180deg, #ffffff 30%, #9fb6e0);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p { color: var(--muted); font-size: clamp(1.05rem, 2.2vw, 1.35rem); max-width: 560px; margin: 22px auto 36px; }
.btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  padding: 12px 24px; border-radius: 999px; font-weight: 500; font-size: 0.95rem;
  transition: transform .2s, background .2s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: #4a8dff; }
.btn-ghost { border: 1px solid var(--line); color: var(--text); }
.btn-ghost:hover { background: var(--card); }

/* ===== Abschnitte ===== */
section.block { padding: 120px 0; border-top: 1px solid var(--line); }
section.alt { background: var(--bg-2); }
.block h2 { font-size: clamp(2rem, 5vw, 3.4rem); letter-spacing: -0.035em; line-height: 1.1; margin-bottom: 16px; }
.lead { color: var(--muted); font-size: 1.15rem; max-width: 620px; }

/* ===== Karten ===== */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; margin-top: 48px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; transition: border-color .25s, transform .25s;
}
.card:hover { border-color: rgba(106, 166, 255, 0.45); transform: translateY(-3px); }
.card .icon { font-size: 1.6rem; margin-bottom: 14px; }
.card h3 { font-size: 1.15rem; margin-bottom: 6px; letter-spacing: -0.01em; }
.card p { color: var(--muted); font-size: 0.95rem; }
.tag { display: inline-block; margin-top: 14px; font-size: 0.75rem; color: var(--blue-2);
       border: 1px solid rgba(106,166,255,.35); border-radius: 999px; padding: 3px 10px; }

/* ===== Linksammlung ===== */
.links { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 32px; margin-top: 48px; }
.links h3 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); margin-bottom: 12px; }
.links ul { list-style: none; }
.links li a {
  display: flex; justify-content: space-between; padding: 12px 0;
  border-bottom: 1px solid var(--line); transition: color .2s;
}
.links li a::after { content: "↗"; color: var(--muted); }
.links li a:hover { color: var(--blue-2); }

/* ===== Kontakt ===== */
.contact { text-align: center; }
.contact .lead { margin: 0 auto 32px; }

/* ===== Footer ===== */
footer { border-top: 1px solid var(--line); padding: 32px 0; color: var(--muted); font-size: 0.85rem; }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
footer a:hover { color: var(--text); }
footer nav { display: flex; gap: 20px; }

/* ===== Unterseiten (Impressum, Datenschutz) ===== */
.page { padding: 140px 0 100px; max-width: 720px; }
.page h1 { font-size: clamp(2rem, 5vw, 3rem); letter-spacing: -0.035em; margin-bottom: 32px; }
.page h2 { font-size: 1.2rem; margin: 32px 0 8px; }
.page p { color: var(--muted); }

/* ===== Einblend-Animation ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.reveal.show { opacity: 1; transform: none; }

/* ===== Handy ===== */
@media (max-width: 720px) {
  .menu-btn { display: block; }
  .nav ul {
    display: none; position: absolute; top: 56px; left: 0; right: 0;
    flex-direction: column; gap: 0; background: rgba(5,7,13,.96); border-bottom: 1px solid var(--line);
  }
  .nav ul.open { display: flex; }
  .nav ul a { display: block; padding: 14px 20px; }
  section.block { padding: 90px 0; }
}