:root {
  --font-ui: "Space Grotesk", sans-serif;
  --ease-smooth: 520ms cubic-bezier(0.22, 1, 0.36, 1);

  --bg-main: #0b1220;
  --bg-alt: #030712;
  --ink: #f3f4f6;
  --panel: rgba(2, 6, 23, 0.78);
  --panel-stroke: rgba(148, 163, 184, 0.24);
  --shadow: 0 20px 45px rgba(0, 0, 0, 0.62);
  --accent: #93c5fd;
  --input-bg: rgba(2, 6, 23, 0.88);
  --input-border: rgba(148, 163, 184, 0.32);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
}

html {
  overflow: hidden;
}

body {
  overflow: hidden;
  font-family: var(--font-ui);
  color: var(--ink);
  background:
    radial-gradient(
      circle at 14% 18%,
      rgba(96, 165, 250, 0.12),
      transparent 46%
    ),
    radial-gradient(
      circle at 86% 80%,
      rgba(96, 165, 250, 0.1),
      transparent 42%
    ),
    linear-gradient(120deg, var(--bg-main), var(--bg-alt));
  transition:
    background var(--ease-smooth),
    color var(--ease-smooth);
}

.stage {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
}

.stage::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
    circle at 50% 115%,
    rgba(148, 163, 184, 0.14),
    transparent 55%
  );
  mix-blend-mode: soft-light;
  transition: opacity var(--ease-smooth);
}

.bg-glow {
  position: absolute;
  border-radius: 999px;
  filter: blur(24px);
  pointer-events: none;
  transition: opacity var(--ease-smooth);
  opacity: 0.46;
}

.bg-glow-1 {
  width: min(36vw, 440px);
  aspect-ratio: 1;
  left: -8vw;
  top: -14vh;
  background: radial-gradient(
    circle,
    rgba(96, 165, 250, 0.36),
    transparent 66%
  );
}

.bg-glow-2 {
  width: min(28vw, 340px);
  aspect-ratio: 1;
  right: -8vw;
  top: 8vh;
  background: radial-gradient(
    circle,
    rgba(96, 165, 250, 0.24),
    transparent 68%
  );
}

.bg-glow-3 {
  width: min(26vw, 300px);
  aspect-ratio: 1;
  right: 18vw;
  bottom: -14vh;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.2), transparent 68%);
}

.display-wrap {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(148, 163, 184, 0.06),
    transparent 36%
  );
  transition: background var(--ease-smooth);
}

#pixelCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.controls {
  position: absolute;
  left: 50%;
  bottom: max(34px, env(safe-area-inset-bottom));
  z-index: 4;
  width: min(820px, calc(100vw - 22px));
  transform: translateX(-50%);
  padding: 12px;
  border-radius: 20px;
  border: 1px solid var(--panel-stroke);
  background: var(--panel);
  backdrop-filter: blur(14px);
  box-shadow:
    var(--shadow),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
  transition:
    background var(--ease-smooth),
    border-color var(--ease-smooth),
    box-shadow var(--ease-smooth);
}

#textInput {
  width: 100%;
  border: 1px solid var(--input-border);
  border-radius: 14px;
  background: var(--input-bg);
  color: var(--ink);
  padding: 14px 16px;
  font-size: clamp(1rem, 2vw, 1.24rem);
  font-family: var(--font-ui);
  font-weight: 700;
  letter-spacing: 0.02em;
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    background var(--ease-smooth),
    color var(--ease-smooth);
}

#textInput::placeholder {
  color: color-mix(in srgb, var(--ink) 56%, transparent);
}

#textInput:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--accent) 72%, white);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 24%, transparent);
}

@media (max-width: 640px) {
  .display-wrap {
    inset: 0;
  }

  .controls {
    left: 0;
    right: 0;
    width: 100%;
    transform: none;
    margin: 0;
    border-radius: 0;
    border-left: none;
    border-right: none;
    padding: 8px 8px 10px;
    bottom: max(16px, env(safe-area-inset-bottom));
    margin-inline: 0;
  }

  #textInput {
    padding: 12px 13px;
    font-size: 0.98rem;
  }
}