@font-face {
  font-family: 'Instrument Sans';
  src: url('assets/fonts/instrument-sans.woff2') format('woff2');
  font-weight: 400 700;
  font-display: swap;
}

/* één schreefloze letter, koele inkten, strakke lijnen.
   De namen groen/koraal/zon zijn historisch (klassen in de HTML); het zijn zeegroen, blauw en amber. */
:root {
  --papier: #f7f8fa;
  --inkt: #0f1b3d;
  --groen: #19c2a0;
  --koraal: #5b9bff;
  --zon: #ffb224;

  --rand: clamp(1.25rem, 5vw, 4.5rem);
  --kop: 'Instrument Sans', system-ui, sans-serif;
  --tekst: 'Instrument Sans', system-ui, sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--papier);
  color: var(--inkt);
  font: 400 1.125rem/1.6 var(--tekst);
  overflow-x: clip;
}

img { display: block; max-width: 100%; height: auto; }
p { margin: 0; max-width: 36rem; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--inkt); outline-offset: 3px; }

.skip:not(:focus) { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.skip:focus { position: fixed; top: .5rem; left: .5rem; z-index: 10; padding: .5rem 1rem; background: var(--zon); }

h1, h2, h3 { margin: 0; font-family: var(--kop); font-weight: 600; letter-spacing: -0.02em; text-wrap: balance; }
h2 { font-size: clamp(1.7rem, 3.6vw, 3.1rem); line-height: 1.12; }

.knop {
  display: inline-block;
  padding: .85em 1.5em;
  border: 1.5px solid var(--inkt);
  border-radius: .5rem;
  background: var(--inkt);
  color: var(--papier);
  font: 600 1rem/1 var(--tekst);
  text-decoration: none;
  transition: background-color .15s, color .15s;
}
.knop:hover { background: var(--groen); color: var(--inkt); }
.knop--groot { font-size: clamp(1.05rem, 1.6vw, 1.25rem); }
.knop--lijn { background: transparent; color: var(--inkt); }

.kop { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding: 1.25rem var(--rand); }
.kop__logo { width: clamp(8rem, 14vw, 10.5rem); }

/* Start */
.start {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  padding: clamp(1.5rem, 4vw, 3.5rem) var(--rand) clamp(3rem, 7vw, 6rem);
}
@media (min-width: 60rem) { .start { grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); } }
.start h1 { font-size: clamp(2.2rem, 5vw, 4.5rem); line-height: 1.05; }
.start p { margin: 1.5rem 0 2rem; font-size: clamp(1.1rem, 1.5vw, 1.3rem); }

.venn { position: relative; width: min(100%, 34rem); aspect-ratio: 1 / .95; margin-inline: auto; }
.venn__cirkel {
  position: absolute;
  width: 60%;
  aspect-ratio: 1;
  border-radius: 50%;
  mix-blend-mode: multiply;
  display: grid;
  font: 600 clamp(.85rem, 1.5vw, 1.15rem)/1 var(--kop);
}
.venn__cirkel span { position: absolute; }
.venn__cirkel--groen { top: 0; left: 20%; background: var(--groen); }
.venn__cirkel--groen span { top: 16%; left: 50%; translate: -50% 0; }
.venn__cirkel--koraal { bottom: 0; left: 0; background: var(--koraal); }
.venn__cirkel--koraal span { bottom: 28%; left: 12%; }
.venn__cirkel--zon { bottom: 0; right: 0; background: var(--zon); }
.venn__cirkel--zon span { bottom: 28%; right: 9%; }
.venn__kern {
  position: absolute;
  top: 50.5%;
  left: 50%;
  translate: -50% -50%;
  max-width: none;
  color: var(--papier);
  font: 600 clamp(.7rem, 1.15vw, .9rem)/1.15 var(--kop);
  text-align: center;
  white-space: nowrap;
}

/* Onderdelen (tabs) */
.tour { padding: 0 var(--rand) clamp(3.5rem, 8vw, 7rem); }
.tour__titel { margin-bottom: 1.5rem; }
.tabs { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 1.25rem; }
.tabs:not(.js *) { display: none; }
.tabs button {
  padding: .8em 1.3em;
  border: 1.5px solid var(--inkt);
  border-radius: .5rem;
  background: transparent;
  color: var(--inkt);
  font: 600 clamp(.9rem, 1.3vw, 1.05rem)/1 var(--kop);
  cursor: pointer;
  transition: background-color .15s, color .15s;
}
.tabs button:hover { background: color-mix(in srgb, var(--inkt) 10%, transparent); }
.tabs button[aria-selected='true'] { background: var(--inkt); color: var(--papier); }

.paneel {
  display: grid;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
  padding: clamp(1.5rem, 4vw, 4rem);
  border-radius: .75rem;
  background: color-mix(in srgb, var(--accent) 22%, var(--papier));
}
.paneel + .paneel { margin-top: 1.5rem; }
.paneel[hidden] { display: none; }
@media (min-width: 60rem) { .paneel { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); } }
.paneel--groen { --accent: var(--groen); }
.paneel--koraal { --accent: var(--koraal); }
.paneel--zon { --accent: var(--zon); }
.paneel h3 { font-size: clamp(1.4rem, 2.6vw, 2.2rem); line-height: 1.15; }
.paneel h3 + p { margin-top: 1.1rem; }

.punten { margin: 1.75rem 0 0; padding: 0; list-style: none; font-weight: 500; }
.punten li { position: relative; padding: .4rem 0 .4rem 1.6rem; }
.punten li::before {
  content: '';
  position: absolute;
  left: 0;
  top: .95em;
  width: .7rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--accent, var(--groen));
  box-shadow: 0 0 0 1px var(--inkt);
}
.punten--breed { columns: 2 18rem; column-gap: 3rem; }
.punten--breed li { break-inside: avoid; }

/* Beeld met een inktcirkel erachter */
.beeld { position: relative; margin: 0; }
.beeld::before {
  content: '';
  position: absolute;
  z-index: 0;
  right: -6%;
  top: -9%;
  width: 46%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--accent);
  mix-blend-mode: multiply;
}
.beeld img { position: relative; width: 100%; border: 1px solid var(--inkt); border-radius: .5rem; background: #fff; }
.beeld--kort img { aspect-ratio: 16 / 12; object-fit: cover; object-position: top; }
.beeld--staand { width: min(100%, 17rem); margin-inline: auto; }

/* Vlakken */
.vlak { padding: clamp(3.5rem, 8vw, 7rem) var(--rand); }
.vlak > p { margin-top: 1.2rem; font-size: clamp(1.1rem, 1.5vw, 1.3rem); }
/* Klassenamen zijn historisch; "inkt" is hier een lichte grijstint en "zon" zeegroen. */
.vlak--inkt { background: color-mix(in srgb, var(--inkt) 7%, var(--papier)); }
.vlak--zon { background: var(--groen); }

.winkels { display: grid; gap: 2rem clamp(2rem, 4vw, 4rem); margin: 2.5rem 0 0; }
@media (min-width: 44rem) { .winkels { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 72rem) { .winkels { grid-template-columns: repeat(3, 1fr); } }
.winkels > div { padding-top: 1.1rem; border-top: 1px solid var(--inkt); }
.winkels dt { font: 600 1.1rem/1.3 var(--kop); }
.winkels dd { margin: .6rem 0 0; }

/* Logo's van koppelingen: klein en in hun eigen kleuren, boven de kop. */
.merk { width: auto; height: 1.5rem; margin-bottom: 1rem; }
.merk--hoog { height: 2.5rem; }
#koppelingen { padding-top: 0; }
#koppelingen .winkels dt { display: flex; flex-direction: column; align-items: flex-start; justify-content: flex-end; min-height: 5rem; }

.contact__knoppen { display: flex; flex-wrap: wrap; gap: 1rem; max-width: none; margin-top: 2rem !important; }
.vlak--zon .knop:hover { background: var(--papier); }

.voet { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; padding: 2rem var(--rand); font-size: .95rem; }
.voet img { width: 7.5rem; opacity: .5; }

/* Beweging: de drie cirkels schuiven bij laden over elkaar; panelen komen kort op bij wisselen */
@media (prefers-reduced-motion: no-preference) {
  .venn__cirkel { animation: samen 1.5s cubic-bezier(.2, .8, .2, 1) both; }
  .venn__cirkel--groen { --van: 0 -45%; }
  .venn__cirkel--koraal { --van: -45% 35%; }
  .venn__cirkel--zon { --van: 45% 35%; }
  .venn__kern { animation: kern .5s 1.3s both; }
  .js .paneel:not([hidden]) { animation: op .3s ease-out; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .knop, .tabs button { transition: none; }
}
@keyframes samen { from { translate: var(--van); } }
@keyframes kern { from { opacity: 0; } }
@keyframes op { from { opacity: 0; translate: 0 .75rem; } }