/* R2 IT Solutions GmbH - Stylesheet (keine externen Quellen, DSGVO-sauber) */
:root {
  --tinte: #0f172a;
  --tinte-weich: #475569;
  --linie: #e2e8f0;
  --grund: #f8fafc;
  --weiss: #ffffff;
  --akzent: #0284c7;
  --akzent-hell: #38bdf8;
  --akzent-tief: #0369a1;
  --orange: #f97316;
  --radius: 18px;
  --schatten: 0 10px 30px rgba(15, 23, 42, 0.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--tinte);
  background: var(--grund);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.innen { max-width: 1080px; margin: 0 auto; padding: 0 22px; }

/* Kopf */
.kopf {
  position: sticky; top: 0; z-index: 50;
  background: rgba(248, 250, 252, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
}
.kopf-zeile { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 17px; color: var(--tinte); text-decoration: none; letter-spacing: -0.01em;
}
.logo-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, var(--akzent) 0%, var(--akzent-hell) 100%);
  color: #fff; font-size: 15px; font-weight: 800;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.35);
}
.nav { display: flex; align-items: center; gap: 26px; }
.nav a { color: var(--tinte-weich); text-decoration: none; font-size: 15px; font-weight: 500; }
.nav a:hover { color: var(--tinte); }
.nav-cta {
  color: #fff !important; background: var(--tinte);
  padding: 8px 18px; border-radius: 999px; font-weight: 600 !important;
}
.nav-cta:hover { background: #1e293b; }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 110px 0 90px; }
.hero-glow {
  position: absolute; inset: -40% -20% auto;
  height: 560px; pointer-events: none;
  background:
    radial-gradient(600px 320px at 22% 60%, rgba(56, 189, 248, 0.22), transparent 70%),
    radial-gradient(520px 300px at 78% 30%, rgba(2, 132, 199, 0.16), transparent 70%),
    radial-gradient(420px 260px at 55% 85%, rgba(249, 115, 22, 0.10), transparent 70%);
}
.hero-innen { position: relative; text-align: center; max-width: 780px; }
.badge {
  display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 0.02em;
  color: var(--akzent-tief); background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.35);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 22px;
}
.badge-orange { color: #c2410c; background: rgba(249, 115, 22, 0.10); border-color: rgba(249, 115, 22, 0.35); }
h1 { font-size: clamp(38px, 6vw, 60px); line-height: 1.08; letter-spacing: -0.03em; font-weight: 800; }
.verlauf {
  background: linear-gradient(90deg, var(--akzent-tief) 0%, var(--akzent) 45%, var(--akzent-hell) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub {
  margin: 22px auto 34px; max-width: 560px;
  font-size: 18px; color: var(--tinte-weich);
}
.hero-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-block; text-decoration: none; font-weight: 600; font-size: 15.5px;
  padding: 13px 26px; border-radius: 999px; transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn.primaer {
  color: #fff; background: linear-gradient(135deg, var(--akzent) 0%, var(--akzent-tief) 100%);
  box-shadow: 0 8px 20px rgba(2, 132, 199, 0.35);
}
.btn.sekundaer {
  color: var(--tinte); background: var(--weiss); border: 1px solid var(--linie);
  box-shadow: var(--schatten);
}

/* Abschnitte */
.abschnitt { padding: 84px 0; }
.abschnitt h2 { font-size: clamp(28px, 4vw, 38px); letter-spacing: -0.02em; text-align: center; }
.abschnitt-sub { text-align: center; color: var(--tinte-weich); margin: 12px auto 44px; max-width: 520px; }

.karten { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.karte {
  background: var(--weiss); border: 1px solid var(--linie); border-radius: var(--radius);
  padding: 30px 26px; box-shadow: var(--schatten);
}
.karte-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center; font-size: 24px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.14), rgba(2, 132, 199, 0.10));
  border: 1px solid rgba(56, 189, 248, 0.25);
  margin-bottom: 18px;
}
.karte h3 { font-size: 18px; margin-bottom: 8px; letter-spacing: -0.01em; }
.karte p { color: var(--tinte-weich); font-size: 15px; }

/* Produkt */
.produkt { padding-top: 20px; }
.produkt-box {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 46px; align-items: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  border-radius: 26px; padding: 54px 50px;
  color: #e2e8f0; box-shadow: 0 24px 60px rgba(15, 23, 42, 0.35);
}
.produkt-box h2 { text-align: left; color: #fff; margin: 14px 0 14px; }
.produkt-text p { color: #cbd5e1; margin-bottom: 26px; }
.produkt-text .badge-orange { margin-bottom: 0; }
.produkt-visual { display: flex; justify-content: center; }
.mock {
  width: 100%; max-width: 340px; background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12); border-radius: 16px; padding: 18px;
  backdrop-filter: blur(4px);
}
.mock-kopf { display: flex; gap: 6px; margin-bottom: 14px; }
.mock-kopf span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255, 255, 255, 0.25); }
.mock-kopf span:first-child { background: var(--orange); }
.mock-zeile { height: 12px; border-radius: 6px; background: rgba(255, 255, 255, 0.12); margin: 10px 0; }
.mock-zeile.breit { width: 70%; height: 16px; background: rgba(56, 189, 248, 0.45); }
.mock-zeile.schmal { width: 45%; }
.mock-karten { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 14px 0; }
.mock-karte { height: 52px; border-radius: 10px; background: rgba(255, 255, 255, 0.10); border: 1px solid rgba(255, 255, 255, 0.10); }

/* Kontakt */
.kontakt-innen { max-width: 640px; }
.kontakt-karte {
  background: var(--weiss); border: 1px solid var(--linie); border-radius: var(--radius);
  box-shadow: var(--schatten); padding: 38px 30px; text-align: center;
}
.kontakt-mail a {
  font-size: clamp(20px, 3.4vw, 26px); font-weight: 700; letter-spacing: -0.01em;
  color: var(--akzent-tief); text-decoration: none;
}
.kontakt-mail a:hover { text-decoration: underline; }
.kontakt-adresse { margin-top: 18px; color: var(--tinte-weich); }

/* Fuss */
.fuss { border-top: 1px solid var(--linie); padding: 26px 0; background: var(--weiss); }
.fuss-zeile { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.fuss p { color: var(--tinte-weich); font-size: 14px; }
.fuss-nav { display: flex; gap: 20px; }
.fuss-nav a { color: var(--tinte-weich); font-size: 14px; text-decoration: none; }
.fuss-nav a:hover { color: var(--tinte); }

/* Rechtstexte */
.recht { max-width: 760px; margin: 0 auto; padding: 60px 22px 80px; }
.recht h1 { font-size: 34px; margin-bottom: 30px; }
.recht h2 { font-size: 20px; margin: 32px 0 10px; text-align: left; }
.recht p, .recht li { color: var(--tinte-weich); font-size: 15.5px; }
.recht ul { padding-left: 22px; margin: 10px 0; }
.recht a { color: var(--akzent-tief); }
.zurueck { display: inline-block; margin-bottom: 26px; color: var(--akzent-tief); text-decoration: none; font-weight: 600; font-size: 15px; }

/* Responsive */
@media (max-width: 860px) {
  .karten { grid-template-columns: 1fr; }
  .produkt-box { grid-template-columns: 1fr; padding: 38px 26px; }
  .hero { padding: 80px 0 64px; }
  .nav { gap: 16px; }
  .nav a:not(.nav-cta) { display: none; }
}