::-webkit-scrollbar {
  width: 0.625rem;
  height: 0.625rem;
}
::-webkit-scrollbar-thumb {
  background: #111;
  border-radius: 0.3125rem;
  box-shadow: inset 0.125rem 0.125rem 0.125rem rgba(255, 255, 255, 0.25),
    inset -0.125rem -0.125rem 0.125rem rgba(0, 0, 0, 0.25);
  cursor: default;
}
::-webkit-scrollbar-track {
  background: #333;
}
::selection {
  background: #fff;
  color: #333;
}
html,
body {
  height: 100vh;
  height: 100dvh;
  margin: 0;
  overflow: hidden;
}
body {
  display: grid;
  grid-template-rows: calc(100dvh - 4rem) 4rem;
  font-family: system-ui, sans-serif;
}

@keyframes bodyPulse {
  0% {
    filter: brightness(1) saturate(1);
  }
  100% {
    filter: brightness(1.1) saturate(1.2);
  }
}
canvas,
.editor,
#controls {
  grid-row: 1;
  grid-column: 1;
}
canvas {
  width: 100%;
  height: auto;
  object-fit: contain;
  background: black;
  touch-action: none;
}
.editor,
.overlay,
#error {
  background: repeating-linear-gradient(0deg, #000a, #1119, #000a .25rem);
  padding: 1em;
}
.editor {
  color: #fefefe;
  tab-size: 2;
  border: none;
  resize: none;
}
.editor:focus {
  outline: none;
}
#error {
  grid-row: 2;
  grid-column: 1;
  margin: 0;
  padding-block: 0;
  padding-top: .5em;
  color: firebrick;
  overflow: auto;
  text-wrap: pretty;
}
#indicator {
  visibility: hidden;
  position: absolute;
  top: calc(var(--top, 0px) - var(--scroll-top, 0px));
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 10px solid firebrick;
  transform: translateY(-25%);
}
.overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  margin: 0;
}
.editor,
.overlay {
  font-size: 1rem;
  line-height: 1.2;
  white-space: pre;
}
#controls {
  position: fixed;
  top: 1em;
  right: 2em;
}
.controls {
  position: relative;
  display: flex;
  gap: 1.5em;
  padding: .5em 1.25em;
  background: #1111;
  border-radius: 4px;
}
.controls::before,
.controls::after {
  content: '';
  position: absolute;
  z-index: -1;
  inset: 0;
  transform: scale(.95);
  border-radius: inherit;
  opacity: 0;
}
.controls::before {
  background: #aef;
  animation: pulse 2s infinite;
}
.controls::after {
  background: #fefefe66;
  transition: transform 200ms ease-in-out;
}
.controls:hover::before,
.controls:hover::after {
  opacity: 1;
}
.controls:hover::before {
  transform: scale(.98);
  filter: blur(2px);
}
.controls:hover::after {
  transform: scale(1.025, 1.1);
}
.controls:hover {
  background: #111f;
}
@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.0125);
  }
  100% {
    transform: scale(1);
  }
}
.hidden {
  display: none !important;
}
.opaque {
  opacity: 1 !important;
  background: #111 !important;
}
input {
  all: unset;
  opacity: .2;
  filter: saturate(0) invert(1);
  cursor: pointer;
  transition: opacity 200ms ease-in-out;
  padding: .25em .5em;
}
input:hover {
  opacity: 1;
}
.icon {
  text-align: center;
  line-height: 1;
}
#btnToggleView {
  width: 1.25em;
}
#btnToggleView::after {
  content: '👁';
}
#btnToggleView:checked::after {
  content: '✏️';
}
#btnToggleResolution::after {
  content: '1️⃣';
}
#btnToggleResolution:checked::after {
  content: '2️⃣';
}
#btnReset::after {
  content: '⏮️';
}

#credits a {color: white; text-decoration: none;}
.saybu-text {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: 'Impact', 'Arial Black', sans-serif;
  font-size: 12rem;
  font-weight: 900;
  color: transparent;
  z-index: 500;
  opacity: 0;
  pointer-events: none;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  background: linear-gradient(45deg, #ffffff, #f0f0f0, #ffffff, #e0e0e0);
  background-size: 400% 400%;
  -webkit-background-clip: text;
  background-clip: text;
  filter: 
    drop-shadow(0 0 20px rgba(255, 255, 255, 0.8))
    drop-shadow(0 0 40px rgba(255, 255, 255, 0.6))
    drop-shadow(0 0 60px rgba(255, 255, 255, 0.4));
  animation: fluidFlow 3s ease-in-out infinite;
}

.saybu-text::before {
  content: 'SAYBU';
  position: absolute;
  top: 0;
  left: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.1) 25%,
    rgba(255, 255, 255, 0.8) 50%,
    rgba(255, 255, 255, 0.1) 75%,
    transparent 100%
  );
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: fluidWave 2s linear infinite;
}

.saybu-text::after {
  content: 'SAYBU';
  position: absolute;
  top: 0;
  left: 0;
  background: radial-gradient(
    circle at var(--x, 50%) var(--y, 50%),
    rgba(255, 255, 255, 0.6) 0%,
    rgba(255, 255, 255, 0.3) 30%,
    transparent 70%
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: fluidBubble 4s ease-in-out infinite;
}

.saybu-text.show {
  animation: 
    fluidReveal 5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    fluidFlow 3s ease-in-out infinite 1s,
    fluidDistort 6s ease-in-out infinite 2s;
}

@keyframes fluidReveal {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.1);
    filter: 
      blur(30px)
      drop-shadow(0 0 0 rgba(255, 255, 255, 0));
  }
  25% {
    opacity: 0.3;
    transform: translate(-50%, -50%) scale(0.6);
    filter: 
      blur(15px)
      drop-shadow(0 0 10px rgba(255, 255, 255, 0.3));
  }
  50% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.1);
    filter: 
      blur(0px)
      drop-shadow(0 0 20px rgba(255, 255, 255, 0.8))
      drop-shadow(0 0 40px rgba(255, 255, 255, 0.6));
  }
  75% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
    filter: 
      blur(0px)
      drop-shadow(0 0 20px rgba(255, 255, 255, 0.8))
      drop-shadow(0 0 40px rgba(255, 255, 255, 0.6))
      drop-shadow(0 0 60px rgba(255, 255, 255, 0.4));
  }
  90% {
    opacity: 0.8;
    transform: translate(-50%, -50%) scale(0.9);
    filter: 
      blur(5px)
      drop-shadow(0 0 10px rgba(255, 255, 255, 0.4));
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.1);
    filter: 
      blur(20px)
      drop-shadow(0 0 0 rgba(255, 255, 255, 0));
  }
}

@keyframes fluidFlow {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

@keyframes fluidWave {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

@keyframes fluidBubble {
  0%, 100% {
    --x: 50%;
    --y: 50%;
  }
  25% {
    --x: 30%;
    --y: 40%;
  }
  50% {
    --x: 70%;
    --y: 60%;
  }
  75% {
    --x: 40%;
    --y: 70%;
  }
}

@keyframes fluidDistort {
  0%, 100% {
    transform: translate(-50%, -50%) skew(0deg, 0deg);
  }
  20% {
    transform: translate(-50%, -50%) skew(1deg, 0.5deg);
  }
  40% {
    transform: translate(-50%, -50%) skew(-0.5deg, 1deg);
  }
  60% {
    transform: translate(-50%, -50%) skew(0.8deg, -0.3deg);
  }
  80% {
    transform: translate(-50%, -50%) skew(-0.3deg, 0.8deg);
  }
}