:root {
  --bg: #0b0c0e;
  --bg-alt: #12141a;
  --text: #f2f3f5;
  --muted: #a7adb8;
  --line: #2a2e38;
  --accent: #33b5e1;
  --max: 68rem;
  --narrow: 38rem;
  --font: "Inter", system-ui, -apple-system, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { color: #6ecff0; }
.skip {
  position: absolute; left: -999px; top: 0;
  background: var(--accent); color: #000; padding: 0.5rem 1rem; z-index: 100;
}
.skip:focus { left: 0.5rem; top: 0.5rem; }
.wrap { width: min(100% - 2rem, var(--max)); margin-inline: auto; }
.narrow { width: min(100% - 2rem, var(--narrow)); margin-inline: auto; }

.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(11, 12, 14, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 0.85rem 0;
}
.logo { width: 9.5rem; height: auto; }
.nav { display: flex; gap: 1.25rem; }
.nav a {
  color: var(--muted); text-decoration: none; font-size: 0.95rem; font-weight: 500;
}
.nav a:hover { color: var(--text); }

.hero {
  padding: 4.5rem 0 4rem;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(51, 181, 225, 0.12), transparent 60%),
    var(--bg);
}
.hero-inner { text-align: center; }
.hero-logo { width: min(17.5rem, 70vw); margin: 0 auto 1.75rem; }
.lead {
  margin: 0 auto;
  max-width: 28rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.section { padding: 3.5rem 0; }
.section-alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.section h1, .section h2 {
  margin: 0 0 1rem;
  font-size: 1.35rem;
  font-weight: 600;
}
.section p { margin: 0 0 1rem; color: var(--muted); }
.section p:last-child { margin-bottom: 0; }
.contact-mail { font-size: 1.15rem; font-weight: 500; }
.contact-mail a { color: var(--text); text-decoration: none; border-bottom: 1px solid var(--accent); }
.contact-mail a:hover { color: var(--accent); }

.site-footer {
  padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}
.footer-inner { display: flex; flex-direction: column; gap: 0.35rem; }
.footer-inner p { margin: 0; }
.copy { opacity: 0.85; }

@media (min-width: 48rem) {
  .hero { padding: 6rem 0 5rem; }
  .footer-inner {
    flex-direction: row; justify-content: space-between; align-items: baseline;
  }
}