@font-face { font-family: 'Manrope'; src: url('fonts/manrope-v20-latin-regular.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Manrope'; src: url('fonts/manrope-v20-latin-600.woff2') format('woff2'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'Manrope'; src: url('fonts/manrope-v20-latin-800.woff2') format('woff2'); font-weight: 800; font-display: swap; }
@font-face { font-family: 'DM Mono'; src: url('fonts/dm-mono-v16-latin-regular.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'DM Mono'; src: url('fonts/dm-mono-v16-latin-500.woff2') format('woff2'); font-weight: 500; font-display: swap; }

:root {
  --wit: #F7F7F5;
  --inkt: #17181A;
  --meet: #00A8C8;
  --rood: #E23A2E;
  --grijs: #6E7075;
  --sans: 'Manrope', sans-serif;
  --mono: 'DM Mono', monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--wit);
  color: var(--inkt);
  font-family: var(--sans);
  font-size: 1.04rem;
  line-height: 1.65;
}

::selection { background: var(--meet); color: #fff; }

a { color: var(--inkt); font-weight: 600; border-bottom: 2px solid var(--meet); text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid var(--meet); outline-offset: 3px; }

.top {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 1.2rem clamp(1.25rem, 4vw, 2.5rem);
  background: rgba(247, 247, 245, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(23, 24, 26, 0.12);
}
.lab { font-family: var(--mono); font-weight: 500; font-size: 0.85rem; letter-spacing: 0.2em; }
.top a { font-size: 0.85rem; }

.hero {
  padding: 11rem clamp(1.25rem, 5vw, 4rem) 5rem;
  max-width: 54rem;
  margin: 0 auto;
}
.hero-eyebrow {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--meet);
  margin-bottom: 1.5rem;
}
.hero h1 {
  font-weight: 800;
  font-size: clamp(2.6rem, 7.5vw, 5.6rem);
  line-height: 1.0;
  letter-spacing: -0.03em;
}
.hero-sub { margin-top: 1.75rem; max-width: 32rem; color: var(--grijs); }

.studie {
  max-width: 60rem;
  margin: 0 auto;
  padding: 4rem clamp(1.25rem, 4vw, 2.5rem);
}
.studie-kop { max-width: 34rem; margin-bottom: 2rem; }
.plaat {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--rood);
}
.studie h2 {
  font-weight: 800;
  font-size: clamp(1.9rem, 5vw, 3rem);
  letter-spacing: -0.02em;
  margin: 0.4rem 0 0.9rem;
}
.studie-kop p { color: var(--grijs); }

.paneel {
  border: 2px solid var(--inkt);
  background:
    linear-gradient(rgba(23, 24, 26, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 24, 26, 0.045) 1px, transparent 1px),
    #FDFDFC;
  background-size: 30px 30px, 30px 30px, auto;
}
.studie-canvas { width: 100%; height: auto; display: block; }

.regelaars {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 1rem;
  border-top: 2px solid var(--inkt);
  background: var(--wit);
}
.speel {
  font-family: var(--mono);
  font-size: 0.8rem;
  width: 2.6rem;
  height: 2.2rem;
  background: var(--inkt);
  color: var(--wit);
  border: none;
  cursor: pointer;
}
.speel:hover { background: var(--meet); }
.scrub {
  flex: 1;
  appearance: none;
  height: 2px;
  background: var(--inkt);
  cursor: ew-resize;
}
.scrub::-webkit-slider-thumb {
  appearance: none;
  width: 16px; height: 16px;
  background: var(--rood);
  border-radius: 50%;
  border: 2px solid var(--inkt);
}
.scrub::-moz-range-thumb {
  width: 12px; height: 12px;
  background: var(--rood);
  border-radius: 50%;
  border: 2px solid var(--inkt);
}
.fase-uit {
  font-family: var(--mono);
  font-size: 0.85rem;
  min-width: 3.2ch;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.colofon {
  max-width: 54rem;
  margin: 0 auto;
  padding: 3rem clamp(1.25rem, 5vw, 4rem) 5rem;
  color: var(--grijs);
  font-size: 0.92rem;
}