:root {
  --background: #f7fafc;
  --foreground: #0f1b2d;
  --muted: #f1f5f9;
  --muted-foreground: #5b6b7d;
  --border: #dbe3ec;
  --card: #ffffff;
  --primary: #006DB0;
  --primary-foreground: #ffffff;
  --primary-glow: #3aa3df;
  --shadow-soft: 0 4px 20px -8px rgba(0, 109, 176, 0.18);
  --shadow-elegant: 0 20px 50px -20px rgba(0, 109, 176, 0.35);
  --gradient-soft: linear-gradient(180deg, #eaf3fa, #f7fafc);
  --radius: 12px;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--background);
  color: var(--foreground);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.link {
  color: blue;
  text-decoration: underline;
}

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

.container { max-width: 1100px; margin: 0 auto; padding: 30px 30px; }
.narrow { max-width: 900px; }
.center { text-align: center; margin-left: auto; margin-right: auto; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(247, 250, 252, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 80px;
}
.logo-link { display: inline-flex; align-items: center; }
.logo {
  height: 48px; width: auto; display: block;
  transition: transform 0.3s ease, filter 0.3s ease;
}
.logo-link:hover .logo {
  transform: scale(1.07);
}

.nav { display: none; gap: 32px; }
.nav-link {
  font-size: 14px; font-weight: 500; color: rgba(15,27,45,0.8);
  transition: color 0.2s ease;
}
.nav-link:hover { color: var(--primary); }
.nav-link.active { color: var(--primary); font-weight: 600; }

.header-cta { display: none; }

@media (min-width: 768px) {
  .nav { display: inline-flex; }
  .header-cta { display: inline-flex; }
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 20px; border-radius: 9999px;
  font-size: 14px; font-weight: 500; cursor: pointer;
  transition: opacity 0.3s ease, box-shadow 0.3s ease, transform 0.2s ease;
  border: none;
}
.btn-primary {
  background: var(--primary); color: var(--primary-foreground);
  box-shadow: var(--shadow-soft);
}
.btn-primary:hover { opacity: 0.95; }
.btn-lg { padding: 14px 28px; font-size: 15px; box-shadow: var(--shadow-elegant); }

/* Hero */
.hero { position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: var(--gradient-soft); opacity: 0.9;
}
.hero-inner { padding: 56px 30px; animation: fadeIn 0.9s ease; }
.eyebrow {
  font-size: 12px; font-weight: 600; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--primary);
}
.hero-title {
  margin: 16px 0 0; font-weight: 700; line-height: 1.15;
  letter-spacing: -0.02em;
  font-size: clamp(28px, 4vw, 44px);
}
.accent { color: var(--primary); }
.hero-text {
  margin: 20px auto 0; max-width: 620px;
  font-size: 17px; color: var(--muted-foreground);
}
.hero-actions { margin-top: 28px; display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }

.divider { border-top: 1px solid var(--border); margin: 0 auto; max-width: 900px; }

/* Section */
.vd-section, .kontakt-section { padding-top: 56px 30px; }
.section-title {
  margin: 12px 0 0; font-weight: 700; letter-spacing: -0.02em;
  font-size: clamp(28px, 3.5vw, 40px);
}
.section-subtitle {
  margin: 8px 0 0; color: var(--primary); font-size: 18px;
}
.prose { margin-top: 24px; color: rgba(15,27,45,0.82); font-size: 16px; }
.prose p { margin: 0 0 18px; }
.center .prose { text-align: left; }
@media (min-width: 768px) {
  .center .prose { text-align: center; }
}

/* Contact cards */
.contact-grid {
  margin-top: 40px;
  display: grid; gap: 24px;
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .contact-grid { grid-template-columns: 1fr 1fr; }
}
.contact-card {
  display: block;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 18px;
  padding: 32px;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.contact-card:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 109, 176, 0.5);
  box-shadow: var(--shadow-soft);
}
.contact-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; border-radius: 14px;
  background: rgba(0, 109, 176, 0.10); color: var(--primary);
  margin-bottom: 16px;
  transition: background 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}
.contact-icon svg { width: 24px; height: 24px; }
.contact-card:hover .contact-icon {
  background: rgba(0, 109, 176, 0.15);
}
.contact-card h3 { margin: 0; font-size: 18px; }
.muted { margin: 4px 0 0; color: var(--muted-foreground); font-size: 14px; }
.contact-value { margin: 12px 0 0; color: var(--primary); font-weight: 500; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); background: rgba(241, 245, 249, 0.5); margin-top: 40px; }
.footer-grid {
  display: grid; gap: 40px;
  padding: 56px 24px;
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
}
.footer-logo { height: 56px; width: auto; }
.footer-text { margin-top: 16px; max-width: 280px; font-size: 14px; color: var(--muted-foreground); }
.site-footer h4 { margin: 0 0 16px; font-size: 14px; }
.site-footer ul { margin: 0; padding: 0; list-style: none; }
.site-footer li { margin: 8px 0; font-size: 14px; color: var(--muted-foreground); }
.site-footer a { transition: color 0.2s ease; }
.site-footer a:hover { color: var(--primary); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px; text-align: center;
  font-size: 12px; color: var(--muted-foreground);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}