:root {
  --ink: #12151A;
  --ink-2: #3A3F47;
  --muted: #4A505A;
  --line: #DADCD4;
  --paper: #F7F7F4;
  --white: #FFFFFF;
  --blue: #2441E6;
  --blue-dark: #1B33B8;
  --blue-soft: #E6EAFE;
  --blue-softer: #F3F5FF;
  --blue-light: #8FA2FF;
  --dark-card: #1E232B;
  --dark-line: #343B46;
  --dark-text: #C9CDD6;
  --display: 'Space Grotesk', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.55;
}
a { color: var(--blue); }
a:hover { color: #152B9E; }
h1, h2, h3 { font-family: var(--display); margin: 0; }
p { margin: 0; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

.wrap { max-width: 1200px; margin: 0 auto; padding-left: 16px; padding-right: 16px; }
@media (min-width: 640px) { .wrap { padding-left: 24px; padding-right: 24px; } }
.row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; }
.section { padding-top: 88px; padding-bottom: 88px; display: flex; flex-direction: column; gap: 40px; }
.band.white { background: var(--white); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.band.dark { background: var(--ink); color: var(--paper); }

/* Banner + header */
.banner { background: var(--ink); color: var(--paper); font-size: 14px; }
.banner .wrap { padding-top: 10px; padding-bottom: 10px; display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 6px 14px; text-align: center; }
.pill { font-family: var(--mono); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; padding: 2px 8px; border-radius: 999px; background: var(--blue); color: #fff; }
.top { border-bottom: 1px solid var(--line); }
.top .row { padding-top: 14px; padding-bottom: 14px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: var(--display); font-weight: 700; font-size: 18px; letter-spacing: -.01em; min-height: 44px; }
.logo b { color: var(--blue); }
.mark { width: 28px; height: 28px; border-radius: 6px; background: var(--ink); display: flex; align-items: center; justify-content: center; }
.mark span { width: 10px; height: 10px; border-radius: 50%; background: var(--blue-light); }
nav { display: flex; flex-wrap: wrap; gap: 0 22px; font-size: 15px; font-weight: 500; }
nav a { color: var(--ink); text-decoration: none; padding: 10px 0; }
nav a:hover { color: var(--blue); }

/* Hero */
.hero { padding-top: 80px; padding-bottom: 80px; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr)); gap: 56px; align-items: center; }
.stack { display: flex; flex-direction: column; gap: 26px; align-items: flex-start; }
.lead-pill { font-family: var(--display); font-size: 18px; font-weight: 600; padding: 8px 16px; border-radius: 999px; background: var(--blue-soft); color: var(--blue-dark); }
h1 { font-weight: 700; font-size: clamp(2.5rem, 5.5vw, 4.4rem); line-height: 1.02; letter-spacing: -.03em; }
.intro { font-size: 20px; color: var(--ink-2); max-width: 34ch; }
.buttons { display: flex; flex-wrap: wrap; gap: 12px; }
.btn { display: inline-flex; align-items: center; min-height: 48px; padding: 0 22px; border-radius: 8px; text-decoration: none; font-weight: 600; }
.btn.dark { background: var(--ink); color: var(--paper); }
.btn.dark:hover { background: #000; color: #fff; }
.btn.line { border: 1.5px solid var(--ink); color: var(--ink); }
.btn.line:hover { background: var(--ink); color: var(--paper); }

.formula { background: var(--white); border: 1px solid var(--line); border-radius: 16px; padding: 28px; display: flex; flex-direction: column; gap: 14px; }
.f-row { display: flex; align-items: center; gap: 16px; padding: 18px; border-radius: 10px; background: var(--paper); }
.f-row strong { display: block; font-weight: 600; }
.f-row small { display: block; font-size: 15px; color: var(--muted); }
.icon { flex: none; width: 44px; height: 44px; border-radius: 10px; background: var(--blue-soft); color: var(--blue); display: flex; align-items: center; justify-content: center; }
.f-row.result { background: var(--ink); color: var(--paper); }
.f-row.result small { color: var(--dark-text); }
.f-row.result .icon { background: var(--blue); color: #fff; }
.op { font-family: var(--display); font-size: 28px; font-weight: 700; text-align: center; line-height: 1; color: var(--blue); }

/* Section heads */
.head { display: flex; flex-direction: column; gap: 16px; max-width: 760px; }
.head p { font-size: 19px; color: var(--ink-2); }
.band.dark .head p { color: var(--dark-text); }
.head-row { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-end; gap: 24px; }
.eyebrow { font-family: var(--mono); font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--blue); }
.eyebrow.muted { color: var(--muted); }
.eyebrow.light { color: var(--blue-light); }
h2 { font-weight: 700; font-size: clamp(2rem, 3.6vw, 2.8rem); line-height: 1.1; letter-spacing: -.02em; }

/* Grids + cards */
.grid { display: grid; gap: 16px; }
.g3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); }
.g4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr)); }
.card { padding: 24px; border: 1px solid var(--line); border-radius: 12px; background: var(--white); display: flex; flex-direction: column; gap: 10px; }
.card h3 { font-size: 20px; line-height: 1.25; }
.card p { font-size: 15px; color: var(--muted); }
.nr { font-family: var(--mono); font-size: 14px; color: var(--blue); }
.soft { padding: 28px; border-radius: 12px; background: var(--paper); display: flex; flex-direction: column; gap: 10px; }
.soft h3 { font-size: 22px; }
.soft p { color: var(--ink-2); }

.player { padding: 28px; gap: 14px; }
.player h3 { font-size: 24px; }
.player .grow { flex-grow: 1; color: var(--ink-2); }
.tag { align-self: flex-start; font-family: var(--mono); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px; background: var(--blue-soft); color: var(--blue-dark); }
.player dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 6px 12px; font-size: 14px; border-top: 1px solid var(--line); padding-top: 14px; }
.player dt { color: var(--muted); }
.player dd { margin: 0; font-weight: 500; }
.site { font-weight: 600; font-size: 15px; min-height: 44px; display: flex; align-items: center; }

/* Tables */
.table-box { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; background: var(--white); }
table { width: 100%; border-collapse: collapse; }
thead tr { background: var(--paper); text-align: left; }
th, td { padding: 14px 18px; text-align: left; }
tbody tr { border-top: 1px solid var(--line); }
tbody th { font-weight: 600; }
.compare { min-width: 720px; font-size: 16px; }
.compare thead th { font-weight: 600; }
.compare th.hl { color: var(--blue); background: var(--blue-soft); font-weight: 700; }
.compare td.hl { background: var(--blue-softer); font-weight: 500; }
.radar { min-width: 880px; font-size: 15px; }
.radar tbody th { font-weight: 500; }
.radar .c { text-align: center; padding-left: 10px; padding-right: 10px; white-space: nowrap; }
.radar a { font-weight: 600; }
.dot { display: inline-block; width: 16px; height: 16px; border-radius: 50%; border: 1.5px solid var(--blue); vertical-align: middle; }
.dot.sterk { background: var(--blue); }
.dot.gemiddeld { background: #B9C4FB; }
.dot.zwak { background: transparent; border-color: #8A909A; }
.gap { display: inline-block; padding: 3px 10px; border-radius: 999px; background: #FFF1E0; color: #8A4B00; font-size: 13px; font-weight: 600; }
.legend { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 16px; font-size: 14px; color: var(--muted); }
.legend li { display: flex; align-items: center; gap: 8px; }
.legend .dot { width: 14px; height: 14px; }
.note { font-size: 15px; color: var(--muted); }

/* Steps */
.steps { list-style: none; margin: 0; padding: 0; }
.steps li { padding: 28px; border-radius: 12px; background: var(--dark-card); border: 1px solid var(--dark-line); display: flex; flex-direction: column; gap: 10px; }
.steps .big { font-family: var(--display); font-size: 36px; font-weight: 700; line-height: 1; color: var(--blue-light); }
.steps h3 { font-size: 21px; }
.steps p { font-size: 15px; color: var(--dark-text); }

/* Contribute */
.split { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); align-items: center; }
.links { display: flex; flex-direction: column; gap: 12px; }
.big-link { display: flex; justify-content: space-between; align-items: center; min-height: 64px; padding: 0 24px; border-radius: 12px; text-decoration: none; font-weight: 600; }
.big-link.dark { background: var(--ink); color: var(--paper); }
.big-link.dark:hover { background: #000; color: #fff; }
.big-link.line { border: 1.5px solid var(--ink); color: var(--ink); }
.big-link.line:hover { background: var(--ink); color: var(--paper); }

footer { border-top: 1px solid var(--line); }
footer .row { padding-top: 28px; padding-bottom: 28px; }
.small { font-size: 14px; color: var(--muted); }
footer a { color: var(--muted); }
footer a:hover { color: var(--ink); }

@media (max-width: 640px) {
  .section { padding-top: 64px; padding-bottom: 64px; }
  .hero { padding-top: 48px; padding-bottom: 56px; gap: 40px; }
  nav { gap: 0 16px; }
}