/* =========================================================================
   GO! AIOS — Landingpage
   Markenfarben: Navy (Grund) + Teal (Akzent), wie in den Marketing-Assets.
   Keine externen Ressourcen (Fonts/CDN) — DSGVO-freundlich, kein Drittzugriff.
   ========================================================================= */

:root {
  --navy-900: #0B1B2B;
  --navy-800: #10263B;
  --navy-700: #16334D;
  --ink:      #E8EFF5;
  --ink-soft: #A9BACB;
  --ink-mute: #7D91A5;
  --teal:     #6ED8D1;
  --teal-600: #3FBDB5;
  --line:     rgba(110, 216, 209, 0.18);
  --line-soft: rgba(169, 186, 203, 0.14);

  --wrap: 1120px;
  --r: 14px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--navy-900);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; border-radius: 4px; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--teal); color: var(--navy-900);
  padding: 10px 16px; font-weight: 700; z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---- Header ---- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11, 27, 43, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 68px; }

.brand { display: inline-flex; align-items: baseline; gap: 8px; color: var(--ink); text-decoration: none; font-weight: 800; letter-spacing: .01em; }
.brand:hover { text-decoration: none; }
.brand-mark { color: var(--teal); font-size: 1.15rem; }
.brand-word { font-size: 1.15rem; }

.nav { display: flex; align-items: center; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav a { color: var(--ink-soft); font-size: .95rem; }
.nav a:hover { color: var(--ink); text-decoration: none; }
.nav .btn-ghost { color: var(--teal); }

@media (max-width: 800px) {
  .nav li:not(:last-child) { display: none; }
}

/* ---- Buttons ---- */
.btn {
  display: inline-block; padding: 13px 24px; border-radius: 10px;
  font-weight: 650; font-size: 1rem; line-height: 1.2; text-align: center;
  border: 1px solid transparent; transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--teal); color: #06212A; }
.btn-primary:hover { background: #86e5df; }
.btn-secondary { border-color: var(--line); color: var(--ink); background: transparent; }
.btn-secondary:hover { border-color: var(--teal); }
.btn-ghost { padding: 9px 16px; border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--teal); text-decoration: none; }

/* ---- Hero ---- */
.hero {
  padding: clamp(64px, 11vw, 128px) 0 clamp(56px, 8vw, 96px);
  background:
    radial-gradient(900px 420px at 12% -10%, rgba(110,216,209,.13), transparent 60%),
    radial-gradient(700px 380px at 88% 0%, rgba(63,189,181,.09), transparent 62%);
  border-bottom: 1px solid var(--line-soft);
}
.eyebrow {
  margin: 0 0 18px; color: var(--teal);
  font-size: .82rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase;
}
.hero h1 {
  margin: 0 0 22px;
  font-size: clamp(2.1rem, 5.4vw, 3.6rem);
  line-height: 1.14; letter-spacing: -0.02em; font-weight: 800;
}
.lead { margin: 0 0 32px; max-width: 62ch; font-size: clamp(1.05rem, 1.6vw, 1.22rem); color: var(--ink-soft); }

.cta-row { display: flex; flex-wrap: wrap; gap: 14px; }

.hero-facts {
  display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  list-style: none; margin: 56px 0 0; padding: 28px 0 0; border-top: 1px solid var(--line-soft);
}
.hero-facts strong { display: block; color: var(--ink); font-size: 1.02rem; }
.hero-facts span { color: var(--ink-mute); font-size: .93rem; }

/* ---- Sections ---- */
.section { padding: clamp(56px, 8vw, 100px) 0; }
.section-alt { background: var(--navy-800); border-block: 1px solid var(--line-soft); }

.section h2 {
  margin: 0 0 16px;
  font-size: clamp(1.6rem, 3.2vw, 2.3rem);
  line-height: 1.22; letter-spacing: -0.015em; font-weight: 750;
}
.section-lead { margin: 0 0 44px; max-width: 66ch; color: var(--ink-soft); font-size: 1.05rem; }

/* ---- Karten ---- */
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); }

.card {
  padding: 28px; border: 1px solid var(--line-soft); border-radius: var(--r);
  background: rgba(255,255,255,.022); transition: border-color .18s ease, transform .18s ease;
}
.card:hover { border-color: var(--line); transform: translateY(-2px); }
.card h3 { margin: 0 0 10px; font-size: 1.12rem; font-weight: 700; color: var(--ink); }
.card p { margin: 0; color: var(--ink-soft); font-size: .97rem; }

/* ---- Module ---- */
.modules {
  display: grid; gap: 1px; list-style: none; margin: 0; padding: 0;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  background: var(--line-soft); border: 1px solid var(--line-soft); border-radius: var(--r); overflow: hidden;
}
.modules li { display: flex; flex-direction: column; gap: 4px; padding: 20px 22px; background: var(--navy-800); }
.mod-name { font-weight: 700; color: var(--ink); }
.mod-desc { color: var(--ink-mute); font-size: .93rem; }

/* ---- Split ---- */
.split { display: grid; gap: clamp(32px, 5vw, 64px); grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); align-items: start; }
.split p { color: var(--ink-soft); max-width: 56ch; }

.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.checks li { position: relative; padding-left: 34px; color: var(--ink-soft); }
.checks li::before {
  content: ""; position: absolute; left: 0; top: .42em;
  width: 18px; height: 10px; border-left: 2.5px solid var(--teal); border-bottom: 2.5px solid var(--teal);
  transform: rotate(-45deg);
}

/* ---- CTA ---- */
.section-cta {
  background:
    radial-gradient(760px 320px at 50% 0%, rgba(110,216,209,.12), transparent 65%),
    var(--navy-800);
  border-top: 1px solid var(--line-soft);
  text-align: center;
}
.section-cta .section-lead { margin-inline: auto; }
.section-cta .cta-row { justify-content: center; }

/* ---- Footer ---- */
.site-footer { padding: 40px 0; border-top: 1px solid var(--line-soft); background: var(--navy-900); }
.footer-inner { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; }
.footer-brand { margin: 0; color: var(--ink-mute); font-size: .92rem; }
.footer-brand strong { color: var(--ink-soft); }
.footer-nav { display: flex; flex-wrap: wrap; gap: 22px; list-style: none; margin: 0; padding: 0; }
.footer-nav a { color: var(--ink-mute); font-size: .92rem; }
.footer-nav a:hover { color: var(--teal); }

/* ---- Einblenden beim Scrollen (nur mit JS aktiv) ---- */
.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; }
}