:root {
  --cell-target: 30px;
  --tile-scale: .8;
  --dot-size: 3px;
  --fill-time: .7s;                 /* hoe snel de titel zich vult */
}

@media (min-width: 768px)  { :root { --cell-target: 36px; --dot-size: 4px; } }
@media (min-width: 1200px) { :root { --cell-target: 44px; } }
@media (min-width: 1920px) { :root { --cell-target: 54px; --dot-size: 5px; } }

html, body {
  height: auto;
  min-height: 100%;
}

body {
  overflow-x: hidden;
  display: flow-root;                 /* zodat de marge onder de kaart meetelt */
  padding-bottom: 0;
}

/* ---------- Achtergrond (blijft staan bij scrollen) ---------- */
.bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background: var(--bg);
  transition: background-color .3s ease;
  touch-action: none;
}

.grid {
  position: absolute;
  display: grid;
  grid-template-columns: repeat(var(--cols, 1), var(--cell, 30px));
  grid-auto-rows: var(--cell, 30px);
}

.cell { position: relative; }

.cell::before {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  width: var(--dot-size);
  height: var(--dot-size);
  background: var(--dot);
  transform: translate(-50%, -50%);
}

.cell.has-item::before,
.cell.no-dot::before { display: none; }

.cell.is-near::before { background: var(--accent); }

.tile {
  position: absolute;
  inset: calc(var(--cell) * (1 - var(--tile-scale)) / 2);
  background: center / contain no-repeat;
  opacity: 0;
  transform: scale(.6);
  filter: var(--icon-filter);
  transition: opacity .45s ease, transform .45s ease;
  pointer-events: none;
}

.tile.is-on {
  opacity: 1;
  transform: scale(1);
  transition: opacity .12s ease-out, transform .18s cubic-bezier(.2, 1.4, .4, 1);
}

.grid.is-focus .tile.is-on { transform: scale(.7); }

/* "Dark" / "Light" boven en onder het thema-vierkant */
.cell-label {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-name);
  font-weight: 500;
  font-size: calc(var(--cell) * .32);
  line-height: 1;
  color: var(--label);
  transition: color .25s ease, opacity .15s ease;
  pointer-events: none;
}
.cell-label.is-active { color: var(--label-active); }
.cell:has(.tile.is-on) .cell-label { opacity: 0; }
.cell.is-near .cell-label.is-active { color: var(--accent); }
.cell.is-near .cell-label:not(.is-active) {
  color: color-mix(in srgb, var(--accent) 35%, transparent);
}

/* ---------- Terugpijl + Light/Dark ---------- */
.nav-tiles {
  position: fixed;
  z-index: 0;
  pointer-events: none;
  visibility: hidden;
}
.nav-tiles.is-ready { visibility: visible; }

.nav-tile {
  position: absolute;
  width: var(--cell);
  height: var(--cell);
  padding: 0;
  border: 0;
  background: none;
  display: grid;
  place-items: center;
  pointer-events: auto;
  cursor: pointer;
  outline: none;
  -webkit-tap-highlight-color: transparent;
  transition: transform .25s cubic-bezier(.2, 1.4, .4, 1);
}

.nav-tile img {
  grid-area: 1 / 1;
  width:  calc(var(--cell) * var(--tile-scale));
  height: calc(var(--cell) * var(--tile-scale));
  pointer-events: none;
}

.nav-tile .icon   { filter: var(--icon-filter); }
.nav-tile .accent {
  filter: var(--accent-filter);
  opacity: 0;
  transition: opacity .2s ease;
}

.nav-tile.is-near .accent,
.nav-tile:hover .accent,
.nav-tile:focus-visible .accent { opacity: 1; }

.nav-tile:hover,
.nav-tile:focus-visible { transform: scale(1.5); z-index: 1; }

/* ---------- Witte kaart ---------- */
.card {
  --card-w: min(600px, calc(100% - var(--gutter) * 2));

  position: relative;
  z-index: 2;
  width: var(--card-w);
  /* reserve voor oudere browsers zonder container queries */
  container-type: inline-size;      /* 1vw = 1% van de binnenbreedte van de kaart */
  container-type: inline-size;      /* 1cqw = 1% van de binnenbreedte van de kaart */
  margin: calc(var(--cell, 30px) * 3.5) auto calc(var(--cell, 30px) * 1);
  padding: clamp(1.75rem, 3.5vw, 2.75rem) clamp(1rem, 3vw, 2rem) clamp(1rem, 2.5vw, 1.75rem);
  border-radius: 14px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  transition: background-color .3s ease, border-color .3s ease;
}

/* ---------- Titel: works met de Aston-O ---------- */
.work-title {
  --title-mobile-space: 16px;
  display: grid;
  place-items: center;
  cursor: default;
  outline: none;
  /* Responsieve titelafstanden staan in page-title.css. */
  text-align: center;
  font-family: var(--font-name);
  font-weight: 400;
  /* reserve voor oudere browsers zonder container queries */
  /* Dezelfde schaal als About; het woord blijft binnen de kaart. */
  /* Zelfde binnenbreedte als de kaart, ook zonder cqw-ondersteuning. */
  --title-inner-width: calc(min(600px, calc(100vw - var(--gutter) * 2)) - clamp(1rem, 3vw, 2rem) * 2 - 2px);
  font-size: min(calc(var(--title-inner-width) * 0.22), 118.4px);
  /* Dezelfde schaal als About; het woord blijft binnen de kaart. */
  font-size: min(22cqw, 118.4px);
  line-height: .95;
  color: var(--heading);
  white-space: nowrap;
}

.work-title__latin,
.work-title__greek { grid-area: 1 / 1; }

/* Het vullen gebeurt per letterdeel. Zou het op het hele woord staan,
   dan tekent dat ook de O mee en krijg je een donker randje rond de O. */
.work-title__w,
.work-title__rest,
.work-title__greek {
  padding: .12em;                    /* ruimte voor accenten */
  color: transparent;
  background-image: linear-gradient(90deg,
    var(--heading) 0 50%,
    var(--name-empty) 50% 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
}

.work-title__w,
.work-title__rest,
.work-title__greek {
  background-image: linear-gradient(90deg,
    var(--works-title, var(--heading)) 0 50%,
    var(--name-empty) 50% 100%);
}

/* de Aston-O vult in haar eigen kleur */
.work-title__o {
  padding: .8em .4em;                /* ruimte voor de lussen */
  margin: 0 -.48em;
  color: transparent;
  background-image: linear-gradient(90deg,
    var(--works-o, var(--script)) 0 50%,
    var(--name-empty) 50% 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
}

/* gevuld in rust, en van links naar rechts: eerst de w, dan de O, dan rks */
.work-title__w,
.work-title__o,
.work-title__rest {
  background-position: 0 0;
  transition: background-position var(--fill-time) cubic-bezier(.65, 0, .35, 1);
}
.work-title__o    { transition-delay: .1s; }
.work-title__rest { transition-delay: .2s; }

.work-title__greek {
  background-position: 100% 0;       /* leeg, vult bij hover */
  transition: none;
}

.work-title:hover .work-title__w,
.work-title:hover .work-title__o,
.work-title:hover .work-title__rest,
.work-title:focus .work-title__w,
.work-title:focus .work-title__o,
.work-title:focus .work-title__rest {
  background-position: 100% 0;
  transition: none;
}

.work-title:hover .work-title__greek,
.work-title:focus .work-title__greek {
  background-position: 0 0;
  transition: background-position var(--fill-time) cubic-bezier(.65, 0, .35, 1);
}

/* het Grieks ligt op het Latijn en wisselt bij hover */
.work-title__greek {
  font-family: "Inter", var(--font-name);
  font-weight: 400;
  font-size: 1.12em;                 /* enkel het Grieks iets groter */
  margin-top: -.2em;                /* en iets hoger */
  opacity: 0;
}

.work-title__latin,
.work-title__greek { will-change: opacity; }   /* vloeiend wisselen, geen hapering */

/* hover of tik: oud-Grieks, zoals bij de naam op de homepagina */
.work-title:hover .work-title__latin,
.work-title:focus .work-title__latin { opacity: 0; }
.work-title:hover .work-title__greek,
.work-title:focus .work-title__greek { opacity: 1; }

.work-title__w    { letter-spacing: -.12em; }   /* w: -5% */
.work-title__rest { letter-spacing: 0; }

.work-title__o {
  font-family: var(--font-script);
  font-weight: 400;
  font-size: 1.1em;
  letter-spacing: .08em;                        /* O: +10% */
  line-height: 0;
  vertical-align: -.12em;
}

/* ---------- Slider (valt buiten de kaart) ---------- */
.slider {
  --card-w: min(600px, calc(100% - var(--gutter) * 2));
  position: relative;
  perspective: 1000px;              /* geeft de beelden diepte */
  left: auto;
  width: calc(100% + 2 * clamp(1rem, 3vw, 2rem));
  margin-left: calc(-1 * clamp(1rem, 3vw, 2rem));
  --slide-w: 100%;
  --slide-gap: clamp(10px, 1.4vw, 22px);
  overflow: hidden;
  cursor: grab;
  touch-action: pan-y;
  user-select: none;
}
.slider.is-dragging { cursor: grabbing; }
.slider.is-ready .slider__track { opacity: 1; }

/* bepaalt de hoogte van de slider (zelfde verhouding als de beelden)
   en is meteen het kader waarin het jaartal rechtsboven staat */
.slider__frame {
  position: relative;
  z-index: 5;
  width: var(--slide-w);
  margin: 0 auto;
  pointer-events: none;
}

.slider__sizer {
  width: 100%;
  aspect-ratio: 908 / 682;
  visibility: hidden;
}

.slider__track {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .7s ease;
  column-gap: var(--slide-gap);   /* JS leest hier de echte afstand uit */
  transform-style: preserve-3d;
}

.slide {
  position: absolute;
  top: 0;
  left: 50%;
  width: var(--slide-w);
  height: 100%;
  margin: 0;
  overflow: hidden;
  border-radius: 2px;
  will-change: transform;
}

.slide {
  transform-origin: 50% 50%;
  backface-visibility: hidden;
  background-color: transparent;   /* de banden komen uit JS (kleur: --slide-bg) */
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  -webkit-user-drag: none;
}

/* ---------- Vorige / volgende ---------- */
.slider-nav {
  --nav-btn: 2.6rem;                /* <-- grootte van de pijlknoppen op desktop */

  display: flex;
  align-items: center;
  justify-content: space-between;   
  gap: 1rem;
  margin-top: clamp(1.25rem, 2.5vw, 1.5rem);
  margin-bottom: clamp(1.25rem, 2.5vw, 1.5rem);
}

/* mobiel: kleinere pijlknoppen */
@media (max-width: 767px) {
  .slider-nav { --nav-btn: 2.1rem; }   /* <-- grootte van de pijlknoppen op mobiel */
}

.slider-btn {
  width: var(--nav-btn);
  height: var(--nav-btn);
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--pill-border);
  border-radius: 999px;
  background: transparent;
  color: var(--heading);
  cursor: pointer;
  transition: background-color .2s ease, border-color .2s ease, transform .2s ease;
}

.slider-btn svg {
  width: calc(var(--nav-btn) * .42);   /* pijltje schaalt mee met de knop */
  height: calc(var(--nav-btn) * .42);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.slider-btn:hover,
.slider-btn:focus-visible {
  background: var(--btn-soft-bg);
  border-color: transparent;
  transform: translateY(-1px);
}

/* ---------- Projectinfo ---------- */
.project {
  margin-top: clamp(1.25rem, 3vw, 2rem);
  transition: opacity .25s ease, transform .3s ease;
}
.project.is-swapping {
  opacity: 0;
  transform: translateY(12px);
}

/* projecttitel tussen de twee pijlen */
.project__name {
  flex: 1;
  margin: 0;
  text-align: center;
  font-family: var(--font-name);
  font-weight: 600;
  font-size: clamp(1.5rem, 2.6vw, 1.75rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--heading);
  transition: opacity .2s ease;
}

/* jaartal rechtsboven op het middelste beeld */
/* het oog over het middelste beeld */
.slide-link {
  position: absolute;
  inset: 0;
  pointer-events: auto;
  cursor: none;                     /* het oog vervangt de muisaanwijzer */
  -webkit-tap-highlight-color: transparent;
}

.slide-link__eye {
  position: fixed;                  /* los van de slider, dus nooit afgesneden */
  z-index: 50;                      /* boven het beeld en de witte kaart */
  top: 0;
  left: 0;
  width: 2.8rem;
  height: 2.8rem;
  display: grid;
  place-items: center;
  opacity: 0;
  transform: translate(-50%, -50%) scale(.8);
  transition: opacity .2s ease;
  will-change: transform;
  pointer-events: none;
}

.slide-link__eye img {
  width: 100%;
  height: 100%;
  filter: var(--slide-eye-filter, var(--btn-soft-icon));
}

.slide-link__eye.is-on { opacity: 1; }

.project__year {
  position: absolute;
  top: clamp(.6rem, 1.4vw, 1rem);
  right: clamp(.6rem, 1.4vw, 1rem);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .55em .9em .35em;        /* onderkant iets kleiner: het font zit hoog */
  border-radius: 999px;
  background: var(--year-bg);
  color: var(--year-text);
  font-family: var(--font-body);
  font-size: clamp(.75rem, 1.6vw, .95rem);
  line-height: 1;
  pointer-events: none;
  opacity: 0;                        /* alleen zichtbaar als een beeld stilstaat */
  transform: translateY(-4px);
  transition: opacity .25s ease, transform .25s ease;
}

.project__year.is-on {
  opacity: 1;
  transform: translateY(0);
}

.project__tags {
  list-style: none;
  margin-top: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 0;
  padding: 0;
}

.project__tags li {
  display: inline-flex;
  align-items: center;
  gap: .5em;
  padding: .5em .95em;
  border: 1px solid var(--pill-border);
  border-radius: 999px;
  background: var(--pill-bg);
  color: var(--heading);
  font-size: clamp(.8rem, 1.6vw, .95rem);
  line-height: 1.2;
  white-space: nowrap;
}

.tag-label {
  display: inline-block;
  line-height: 1;
  transform: translateY(.08em);
}

/* icoontje in een tag, met een zacht glansje eroverheen (zoals zuriks) */
.tag-icon {
  position: relative;
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  height: 1.5em;                     /* ruimer dan het icoon: nooit afgesneden */
  overflow: hidden;                  /* enkel voor het glansje */
}

.tag-icon img {
  display: block;
  height: 73%;                       /* ~1.1em */
  width: auto;                       /* elk icoon houdt zijn eigen verhouding */
  object-fit: contain;
}

:root[data-theme="dark"] .tag-icon img[src$="/Express-js-icon.svg"] {
  filter: brightness(0) invert(1) brightness(.972549);
}

.tag-icon::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 20%, rgba(255, 255, 255, .7) 50%, transparent 80%);
  transform: translateX(-160%);
  animation: tag-shine 2.8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes tag-shine {
  0%, 60%  { transform: translateX(-160%); }
  100%     { transform: translateX(160%); }
}

.project__tags li:hover { background: var(--btn-soft-bg); }

.project__text {
  margin: 1.5rem 0 0;
  max-width: 62ch;
  font-family: var(--font-name);    /* Poppins */
  font-weight: 400;
  font-size: clamp(.78rem, 1.35vw, .9rem);
  line-height: 1.8;
  color: var(--heading);
}

/* ---------- Knoppen ---------- */
.project__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: clamp(1rem, 2.2vw, 1.5rem);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0;
  padding: .9em 1.2em .75em;
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: clamp(.75rem, 1.5vw, .85rem);
  letter-spacing: .03em;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color .25s ease, color .25s ease, gap .25s ease;
}

.btn span { line-height: 1; }

.btn__icon {
  width: 1.15em;
  height: 1.15em;
  transform: translateY(-.12em);   /* optisch gelijk met de tekst */
  max-width: 0;                 /* icoon verschijnt bij hover */
  opacity: 0;
  transition: max-width .25s ease, opacity .2s ease;
}

.btn:hover .btn__icon,
.btn:focus-visible .btn__icon {
  max-width: 1.5em;
  opacity: 1;
}
.btn:hover, .btn:focus-visible { gap: .5em; }

.btn--primary {
  background: var(--btn-solid-bg);
  color: var(--btn-solid-text);
}
.btn--primary .btn__icon { filter: var(--btn-solid-icon); }

/* 2de visit-knop: zelfde knop maar omgekeerd (open vlak + rand) */
.btn--line {
  background: var(--btn-line-bg);
  color: var(--btn-line-text);
  box-shadow: inset 0 0 0 1px var(--btn-line-border);   /* rand zonder hoogteverschil */
}
.btn--line .btn__icon { filter: var(--btn-line-icon); }

.btn--ghost {
  background: var(--btn-soft-bg);
  color: var(--btn-soft-text);
}
.btn--ghost .btn__icon { filter: var(--btn-soft-icon); }

.btn--ghost:hover,
.btn--ghost:focus-visible { background: var(--btn-soft-bg-hover); }

/* vanaf 768px: 1 rij puntjes boven de kaart */
@media (min-width: 768px) {
  .card { margin-top: calc(var(--cell, 30px) * 1); }
  .nav-tiles { z-index: 4; }
  .slider {
  left: 50%;
  width: 100vw;
  margin-left: -50vw;
  --slide-w: var(--card-w);
}

}

@media (prefers-reduced-motion: reduce) {
  .tile, .tile.is-on { transition: opacity .2s linear; transform: none; }
  .nav-tile { transition: none; }
}