:root {
  --header-h: 64px;
  --bg: #0b0f17;
  --panel: #0f1522;
  --text: #e6eaf2;
  --muted: #9aa3b2;
  --line: #1f2a3b;
  --primary: #60a5fa;
  --primary-ink: #0b1220;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: Inter, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11,15,23,0.7);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.menu-toggle { display: none; border: 1px solid var(--line); background: transparent; color: var(--text); height: 36px; width: 42px; font-size: 18px; cursor: pointer; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 32px; height: 32px;
  border-radius: 0;
  background: radial-gradient(120% 120% at 0% 0%, #1f4bcc 0%, #3b82f6 60%, #60a5fa 100%);
  color: #eaf2ff;
  font-weight: 700;
}
.brand-text { font-weight: 700; letter-spacing: 0.2px; color: var(--text); }

.site-nav { display: flex; align-items: center; gap: 18px; }
.site-nav a { color: var(--muted); text-decoration: none; font-weight: 500; padding: 2px 0; }
.site-nav a:hover { color: var(--text); }
.site-nav a.active { color: var(--text); box-shadow: inset 0 -2px 0 var(--primary); }
.divider { width: 1px; height: 20px; background: var(--line); margin: 0 4px; }
.lang-toggle {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  padding: 6px 10px;
  border-radius: 0;
  font-weight: 600;
  cursor: pointer;
}
.lang-toggle:hover { border-color: #d8dbe4; }

.hero {
  position: relative;
  padding: 96px 0 64px;
  overflow: clip;
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}
.hero-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.35) saturate(0.9);
}
.hero-bg {
  position: absolute;
  inset: -80px -60px auto -60px;
  height: 360px;
  background: radial-gradient(60% 60% at 70% 10%, rgba(96,165,250,0.18) 0%, rgba(96,165,250,0.0) 60%),
              linear-gradient(180deg, rgba(2,6,23,0.2) 0%, rgba(2,6,23,0) 100%);
  pointer-events: none;
}
.hero-inner { text-align: center; }
.headline { font-size: 44px; line-height: 1.15; letter-spacing: -0.5px; margin: 0; color: #f5f8ff; }
.subhead { color: var(--muted); margin-top: 14px; font-size: 18px; }
.hero-ctas { margin-top: 28px; display: flex; gap: 12px; justify-content: center; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; text-decoration: none; border-radius: 0; padding: 12px 18px; font-weight: 700; }
.btn-primary { background: var(--primary); color: white; box-shadow: 0 8px 20px rgba(14,165,233,0.3); }
.btn-primary:hover { filter: saturate(1.1) brightness(1.02); }

.section { padding: 72px 0; border-top: 1px solid var(--line); background: var(--bg); scroll-margin-top: var(--header-h); }
.section h2 { font-size: 32px; margin: 0 0 18px; }
.section .lead { color: var(--muted); }

.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; margin-top: 24px; }
.feature { border: 1px solid var(--line); border-radius: 0; padding: 18px; background: var(--panel); }
.feature h3 { margin: 0 0 8px; font-size: 18px; }
.feature p { margin: 0; color: var(--muted); }

.section-kuzec .kuzec-list { margin: 12px 0 0; padding: 0 0 0 20px; }
.section-kuzec li { margin: 8px 0; }

.split { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; }
.card { border: 1px solid var(--line); border-radius: 0; padding: 18px; background: var(--panel); }
.card h3 { margin-top: 0; }

.section-services .services-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
.service-card { border: 1px solid var(--line); border-radius: 0; padding: 18px; background: var(--panel); }
.service-card h3 { margin-top: 0; }
.service-card ul { margin: 8px 0 0; padding-left: 18px; color: var(--muted); }

.section-vion .highlights-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
.highlight-card { border: 1px solid var(--line); border-radius: 0; padding: 18px; background: var(--panel); }
.highlight-card h3 { margin-top: 0; }
.section-vion .vion-cta { margin-top: 20px; }

.section-contact { background: linear-gradient(180deg, #0b0f17 0%, #0b0f17 100%); }
.contact-inner { display: grid; grid-template-columns: 1fr; }
.contact-card { border: 1px solid var(--line); border-radius: 0; padding: 24px; background: var(--panel); }
.contact-row { display: grid; grid-template-columns: 120px 1fr; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--line); align-items: baseline; }
.contact-row:last-of-type { border-bottom: 0; }
.label { color: var(--muted); }
.value { color: var(--text); text-decoration: none; }
.value:hover { text-decoration: underline; }
.contact-cta { margin-top: 16px; }

.site-footer { border-top: 1px solid var(--line); padding: 26px 0; background: #0b0f17; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; }
.footer-brand { font-weight: 700; }
.footer-copy { color: var(--muted); }

@media (max-width: 900px) {
  .feature-grid, .section-services .services-grid, .section-vion .highlights-grid, .split { grid-template-columns: 1fr; }
  .headline { font-size: 36px; }
}

@media (max-width: 760px) {
  .menu-toggle { display: inline-block; }
  .site-nav { position: absolute; top: var(--header-h); left: 0; right: 0; background: rgba(11,15,23,0.95); border-bottom: 1px solid var(--line); display: none; flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 14px 24px; border-top: 1px solid var(--line); }
  .divider, .lang-toggle { display: none; }
  .header-inner { position: relative; }
}