:root {
  --bg: #0b1020;
  --bg-soft: #131c34;
  --surface: #1b2747;
  --text: #f4f7ff;
  --text-soft: #b4c2e3;
  --primary: #5ca8ff;
  --primary-strong: #2c7fe8;
  --border: #2e3e68;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 90% -10%, #203763 0%, transparent 55%),
    radial-gradient(1000px 500px at 0% 10%, #1a2f58 0%, transparent 50%),
    var(--bg);
  line-height: 1.6;
}

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

.container {
  width: min(var(--container), 92vw);
  margin: 0 auto;
}

.section {
  padding: 4.5rem 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  background: #fff;
  color: #000;
  padding: 0.5rem 0.75rem;
  border-radius: 0.4rem;
  z-index: 200;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 65%, transparent);
  z-index: 100;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.brand {
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: 0.02em;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.brand-logo img {
  width: 38px;
  height: 38px;
  border-radius: 0;
  flex: 0 0 auto;
}

.brand-logo span {
  line-height: 1;
}

.nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin: 0;
  padding: 0;
}

.nav-list a {
  color: var(--text-soft);
  font-weight: 500;
}

.nav-list a:hover,
.nav-list a.active {
  color: var(--text);
}

.eyebrow {
  color: #8fb8ff;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  font-size: 0.78rem;
}

.hero {
  padding-top: 6rem;
}

.hero-content h1,
h1 {
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1.1;
  margin: 0.4rem 0 1rem;
}

h2 {
  font-size: clamp(1.4rem, 2.3vw, 2.1rem);
  line-height: 1.2;
  margin: 0 0 1rem;
}

h3 {
  margin: 0 0 0.5rem;
  font-size: 1.08rem;
}

.lead {
  color: var(--text-soft);
  max-width: 760px;
  font-size: 1.07rem;
}

.section-intro {
  color: var(--text-soft);
  max-width: 820px;
  margin-bottom: 1.4rem;
}

.hero-actions {
  margin-top: 1.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.btn {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.72rem 1.2rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #fff;
}

.btn-primary:hover {
  filter: brightness(1.05);
}

.btn-secondary {
  border-color: var(--border);
  color: var(--text);
  background: color-mix(in srgb, var(--surface) 70%, transparent);
}

.grid {
  display: grid;
  gap: 1rem;
}

.cards-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

#ki-anwendungsberatung {
  grid-column: 1 / -1;
}

.cards-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  background: linear-gradient(180deg, color-mix(in srgb, var(--surface) 82%, transparent), color-mix(in srgb, var(--surface) 62%, transparent));
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.2rem;
}

.card p,
.card li {
  color: var(--text-soft);
}

.card-icon {
  width: 32px;
  height: 32px;
  display: block;
  margin: 0 auto 0.65rem;
  filter: brightness(0) invert(0.92);
  opacity: 0.9;
}

.card ul {
  padding-left: 1rem;
  margin: 0.4rem 0 0.8rem;
}

.checklist {
  list-style: none;
  padding: 0;
}

.checklist li::before {
  content: "✓ ";
  color: #8ac2ff;
}

blockquote {
  margin: 1rem 0 0.4rem;
  border-left: 3px solid var(--primary);
  padding-left: 0.8rem;
  color: #dce8ff;
}

.quote-author {
  color: #9db3da;
  font-size: 0.95rem;
}

.section-cta,
.section-newsletter {
  background: color-mix(in srgb, var(--bg-soft) 80%, transparent);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.cta-wrap,
.newsletter-wrap {
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.newsletter-form {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.newsletter-form input {
  min-width: 250px;
  background: #0c1428;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.72rem 1rem;
}

.form-note {
  width: 100%;
  margin: 0.3rem 0 0;
  color: #8ac2ff;
}

.site-footer {
  padding-top: 2.2rem;
  background: #090e1b;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  padding-bottom: 1.4rem;
}

.footer-grid h4 {
  margin: 0 0 0.4rem;
  font-size: 0.96rem;
}

.footer-grid ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-grid li {
  margin-bottom: 0.2rem;
  color: var(--text-soft);
}

.footer-bottom {
  padding: 1rem 0 1.4rem;
  border-top: 1px solid var(--border);
  color: #90a3cc;
  font-size: 0.92rem;
}

.legal-content {
  max-width: 720px;
}

.blog-grid {
  margin-top: 1.2rem;
}

.blog-teaser .meta {
  color: #9db3da;
  font-size: 0.92rem;
  margin: 0 0 0.6rem;
}

.blog-post-content {
  max-width: 960px;
}

.blog-post-content p,
.blog-post-content li {
  color: var(--text-soft);
}

.blog-post-content img {
  width: 100%;
  height: auto;
  border-radius: 0.7rem;
  border: 1px solid var(--border);
}

.blog-post-content figure {
  margin: 1.2rem 0;
}

.blog-post-content a {
  color: #9dcbff;
  text-decoration: underline;
}

.blog-back-link {
  margin-top: 1rem;
}

.sr-only {
  border: 0;
  clip: rect(0, 0, 0, 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
}

@media (max-width: 960px) {
  .cards-3,
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #ki-anwendungsberatung {
    grid-column: span 2;
  }
}

@media (max-width: 700px) {
  .nav-wrap {
    min-height: 64px;
    flex-direction: column;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.7rem 0;
  }

  .nav-list {
    gap: 0.8rem;
    flex-wrap: wrap;
    justify-content: center;
  }

  .cards-2,
  .cards-3,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  #ki-anwendungsberatung {
    grid-column: span 1;
  }
}