:root {
  --fg: #ffffff;
  --fg-dim: rgba(255,255,255,.85);
  --fg-muted: rgba(255,255,255,.65);
  --accent: #27c6d7;
  --card: rgba(20,3,10,.76);
  --border: rgba(255,255,255,.18);
  --shadow: rgba(0,0,0,.58);
  --maxw: 980px;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  color: var(--fg);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  background: #240612 url("achtergrond.png") center 20% / cover fixed no-repeat;
  position: relative;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background: radial-gradient(ellipse at center, rgba(42,3,16,.3) 0%, rgba(17,0,6,.78) 58%, rgba(0,0,0,.94) 100%);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(9px);
  background: linear-gradient(180deg, rgba(0,0,0,.82), rgba(0,0,0,.48));
  border-bottom: 1px solid var(--border);
}
.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.brand { display: flex; align-items: center; gap: 12px; color: var(--fg); font-weight: 700; }
.logo { width: 38px; height: 38px; object-fit: cover; border-radius: 9px; box-shadow: 0 4px 14px var(--shadow); }
.spacer { flex: 1; }
.links { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.links a { color: var(--fg); opacity: .9; }
.links a.active { color: var(--accent); }

.hero {
  max-width: var(--maxw);
  margin: 36px auto 0;
  padding: 24px 20px;
}
.hero h1 { margin: 0 0 8px; font-size: clamp(30px, 4vw, 42px); line-height: 1.2; }
.lead { margin: 0; color: var(--fg-dim); font-size: clamp(15px, 2.5vw, 18px); }
.section {
  max-width: var(--maxw);
  margin: 22px auto;
  padding: 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 8px 30px var(--shadow);
}
.section h2 { margin: 0 0 8px; }
.section h3 { margin: 24px 0 6px; }
.section h3:first-of-type { margin-top: 14px; }
.kv { display: grid; gap: 20px; grid-template-columns: 1fr 1fr; }
.footer {
  max-width: var(--maxw);
  margin: 30px auto 40px;
  padding: 14px 20px;
  color: var(--fg-muted);
  border-top: 1px solid var(--border);
}
.small { font-size: 13px; color: var(--fg-muted); }
.badge { display: inline-block; margin: 4px 8px 4px 0; padding: 5px 9px; border: 1px solid var(--border); border-radius: 8px; background: rgba(255,255,255,.07); }
ul { margin: 10px 0 0 18px; }

@media (max-width: 720px) {
  body { background-attachment: scroll; }
  .kv { grid-template-columns: 1fr; }
  .nav { align-items: flex-start; }
  .brand span { display: none; }
  .links { justify-content: flex-end; }
}