* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #05010a;
  user-select: none;
  -webkit-user-select: none;
}
#c,
#gl {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  display: block;
}
#gl {
  pointer-events: none;
}
#hud {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  font: 700 13px monospace;
  color: #fff;
  z-index: 5;
  display: none;
}
#hud.on {
  display: block;
}
#txt {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  text-align: center;
  white-space: nowrap;
  font:
    900 clamp(28px, 5vw, 96px) "Segoe UI",
    Arial,
    sans-serif;
  color: var(--txtColor, #fff);
  z-index: 4;
  will-change: transform, filter;
}
#txt span {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
}
#txt .m {
  position: relative;
  filter: drop-shadow(0 0 calc(var(--glow, 10px)) var(--accent, #00f3ff))
    drop-shadow(0 0 calc(var(--glow, 10px) * 2) var(--accent, #00f3ff));
}
#txt .l,
#txt .r {
  opacity: 0;
  color: var(--accent2, #ff007f);
}
#txt.glitch .l {
  opacity: 0.85;
  transform: translateX(-4px);
  color: var(--accent2, #ff007f);
  clip-path: polygon(0 20%, 100% 20%, 100% 45%, 0 45%);
}
#txt.glitch .r {
  opacity: 0.85;
  transform: translateX(4px);
  color: var(--accent, #00f3ff);
  clip-path: polygon(0 55%, 100% 55%, 100% 80%, 0 80%);
}

#ctrlDock {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 10;
  display: flex;
  gap: 8px;
}
#ctrlDock button {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid #ffffff2a;
  background: #00000030;
  color: #ffffff80;
  font-size: 13px;
  line-height: 1;
  cursor: pointer;
  backdrop-filter: blur(4px);
  opacity: 0.35;
  transition:
    opacity 0.2s,
    background 0.2s,
    color 0.2s;
}
#ctrlDock button:hover {
  opacity: 1;
  background: #00000070;
}
#audioBtn.on {
  color: #00f3ff;
  border-color: #00f3ff60;
  opacity: 0.7;
}

#settingsPanel {
  position: fixed;
  top: 54px;
  right: 16px;
  z-index: 10;
  width: 210px;
  background: #0a0a14d9;
  border: 1px solid #ffffff22;
  border-radius: 10px;
  padding: 12px;
  backdrop-filter: blur(8px);
  display: none;
  flex-direction: column;
  gap: 8px;
  font:
    12px system-ui,
    sans-serif;
  color: #eee;
}
#settingsPanel.open {
  display: flex;
}
#settingsPanel label {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
#settingsPanel label.row {
  flex-direction: row;
  align-items: center;
  gap: 6px;
}
#settingsPanel input[type="text"] {
  background: #ffffff12;
  border: 1px solid #ffffff2a;
  color: #fff;
  border-radius: 5px;
  padding: 4px 6px;
  font:
    12px system-ui,
    sans-serif;
}
#settingsPanel input[type="color"] {
  width: 100%;
  height: 22px;
  border: none;
  background: none;
  padding: 0;
}
#settingsPanel button#p_reset {
  margin-top: 4px;
  padding: 5px;
  border-radius: 6px;
  border: 1px solid #ffffff2a;
  background: #ffffff10;
  color: #fff;
  cursor: pointer;
}
#settingsPanel button#p_reset:hover {
  background: #ffffff22;
}