:root {
  --achtergrond: #0c0c14;
  --behuizing: #2a2a3a;
  --behuizing-licht: #3a3a50;
  --knop: #1c1c28;
  --knop-rand: #0a0a10;
  --knop-a: #b83a3a;
  --knop-b: #3a5ab8;
  --tekst: #d8d8e8;
}

* {
  box-sizing: border-box;
  /* Geen dubbeltik-zoom, knijpzoom of scrollen: alles is spelbesturing. */
  touch-action: none;
}

html, body {
  margin: 0;
  height: 100%;
  overscroll-behavior: none;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  background: var(--achtergrond);
  overflow: hidden;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
  font-family: system-ui, sans-serif;
}

#app {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

#spel {
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
  position: relative;
}

#spel canvas {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

/* ---------------------------------------------------------- aanraakknoppen */

#besturing {
  display: none;
  position: relative;
}

body.toon-knoppen #besturing {
  display: grid;
}

.dpad {
  position: relative;
  width: 150px;
  height: 150px;
  touch-action: none;
}

.dpad-arm {
  position: absolute;
  background: var(--knop);
  border: 3px solid var(--knop-rand);
  border-radius: 10px;
  box-shadow: inset 0 3px 0 rgba(255, 255, 255, .08);
}
.dpad-v { left: 50px; top: 0; width: 50px; height: 150px; }
.dpad-h { top: 50px; left: 0; width: 150px; height: 50px; }

.dpad-pijl {
  position: absolute;
  width: 0;
  height: 0;
  border: 9px solid transparent;
  pointer-events: none;
  opacity: .55;
}
.p-omhoog { left: 66px; top: 10px; border-bottom-color: var(--tekst); }
.p-omlaag { left: 66px; bottom: 10px; border-top-color: var(--tekst); }
.p-links { top: 66px; left: 10px; border-right-color: var(--tekst); }
.p-rechts { top: 66px; right: 10px; border-left-color: var(--tekst); }

.dpad[data-richting="omhoog"] .p-omhoog,
.dpad[data-richting="omlaag"] .p-omlaag,
.dpad[data-richting="links"] .p-links,
.dpad[data-richting="rechts"] .p-rechts { opacity: 1; }

button {
  font: inherit;
  color: var(--tekst);
  touch-action: none;
  cursor: pointer;
}

.rond {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 3px solid var(--knop-rand);
  font-weight: 800;
  font-size: 20px;
  box-shadow: inset 0 -4px 0 rgba(0, 0, 0, .3), inset 0 3px 0 rgba(255, 255, 255, .2);
}
.knop-a { background: var(--knop-a); }
.knop-b { background: var(--knop-b); }

.pil {
  padding: 8px 16px;
  border-radius: 999px;
  border: 3px solid var(--knop-rand);
  background: var(--knop);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
}

button.ingedrukt,
.rond:active,
.pil:active {
  filter: brightness(1.35);
  transform: translateY(2px);
}

.ab-knoppen {
  position: relative;
  width: 150px;
  height: 130px;
}
.ab-knoppen .knop-a { position: absolute; right: 4px; top: 8px; }
.ab-knoppen .knop-b { position: absolute; left: 4px; bottom: 8px; }

.midden-knoppen {
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Staand: spel boven, knoppen eronder (als een handheld). */
@media (orientation: portrait) {
  body.toon-knoppen #spel {
    flex: 0 0 auto;
    height: min(calc(100vw * 2 / 3), 62vh);
  }
  body.toon-knoppen #besturing {
    flex: 1 1 auto;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    justify-items: center;
    padding: 12px 10px 18px;
    background: linear-gradient(var(--behuizing-licht), var(--behuizing));
    border-top: 3px solid #101018;
  }
  .midden-knoppen { align-self: end; padding-bottom: 6px; }
}

/* Liggend: knoppen over de zwarte randen links en rechts. */
@media (orientation: landscape) {
  body.toon-knoppen #besturing {
    position: absolute;
    inset: 0;
    pointer-events: none;
    grid-template-columns: auto 1fr auto;
    align-items: end;
    padding: 0 max(12px, env(safe-area-inset-right)) 18px max(12px, env(safe-area-inset-left));
  }
  body.toon-knoppen #besturing > * { pointer-events: auto; }
  body.toon-knoppen .dpad,
  body.toon-knoppen .ab-knoppen { opacity: .75; }
  .midden-knoppen { align-self: start; padding-top: 10px; grid-column: 2; grid-row: 1; justify-self: end; }
  .dpad { grid-column: 1; grid-row: 1; }
  .ab-knoppen { grid-column: 3; grid-row: 1; }
}

@media (orientation: landscape) and (max-height: 420px) {
  .dpad { transform: scale(.82); transform-origin: bottom left; }
  .ab-knoppen { transform: scale(.82); transform-origin: bottom right; }
}