/* === Root Variables === */
:root {
  /* Base key alpha when immersion slider is at 0% */
  --key-opacity: 0.25;
  --key-chroma: 0.85;
  --key-lightness: 0.5;
  --key-text-light: 0.8;
  --key-text-chroma: 0.5;
  --panel-strength: 0.3;
  --glow-color: #fff;
  --glow-gradient: transparent 0%, transparent 100%;
  --ui-text: hsla(0, 0%, 85%, 0.95);
  --glow-strength: 0;
  --chat-font-size: 20px;
  --prompt-font-size: 16px;
  --slider-track-opacity: 0.22;
  --highlight-factor: calc(1.05 + 0.05 * var(--glow-strength));
}

html {
  image-rendering: optimizeQuality;
}

/* === Global Layout === */
body {
  background-color: #141414;
  color: var(--ui-text);
  font-family:
    "Atkinson Hyperlegible",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "Helvetica Neue",
    Arial,
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  filter: contrast(1.05) saturate(1.05);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  min-height: 100vh;
  margin: 0;
  padding-bottom: 20px;
  position: relative;
  overflow-x: hidden;
}

:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.7);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

body::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: -1;
  pointer-events: none;
}

body.glow::before {
  background: linear-gradient(to right, var(--glow-gradient));
  filter: blur(140px) saturate(1.3) brightness(0.9);
  width: 140%;
  left: -20%;
  opacity: var(--glow-strength, 1);
}

/* === Neon Sign === */
#neonMain {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
  opacity: 0.7;
  display: flex;
  justify-content: space-between;
  font-size: 52px;
  font-weight: 700;
  font-family: inherit;
  z-index: 1;
}

#neonByline {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
  font-family: "Pacifico", cursive;
  font-weight: 400;
  --neon-color: hsl(0, 0%, 82%);
  color: var(--neon-color);
  text-align: center;
  text-shadow:
    0 0 3px var(--neon-color),
    0 0 6px var(--neon-color),
    0 0 12px var(--neon-color),
    0 0 20px var(--neon-color);
  animation: neon-flicker 3s infinite;
  opacity: 0.12;
  filter: brightness(0.7);
}

#neonByline.ping {
  text-shadow:
    0 0 4px var(--neon-color),
    0 0 8px var(--neon-color),
    0 0 16px var(--neon-color),
    0 0 24px var(--neon-color);
}

#copyrightNotice {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-size: 15px;
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
  pointer-events: none;
  opacity: 0.7;
}

#neonMain span {
  flex: 1;
  text-align: center;
  --neon-color: hsl(0, 0%, 82%);
  color: var(--neon-color);
  text-shadow:
    0 0 5px var(--neon-color),
    0 0 10px var(--neon-color),
    0 0 20px var(--neon-color),
    0 0 40px var(--neon-color);
  animation: neon-flicker 3s infinite;
  transition:
    color 0.05s linear,
    text-shadow 0.05s linear;
}

#neonMain.ping span {
  text-shadow:
    0 0 6px var(--neon-color),
    0 0 12px var(--neon-color),
    0 0 24px var(--neon-color),
    0 0 45px var(--neon-color);
}

@keyframes neon-flicker {
  0%,
  19%,
  21%,
  23%,
  25%,
  54%,
  56%,
  100% {
    opacity: 1;
  }
  20%,
  24%,
  55% {
    opacity: 0.9;
  }
}

/* === Container Setup === */
#app {
  transform: none;
  transform-origin: bottom center;
}
.main-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 960px;
  padding: 0 20px 12px;
  box-sizing: border-box;
}

.seizure-warning {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
  margin-top: 16px;
}

#prompt {
  --highlight-factor: 1;
}

#chatOutput {
  --highlight-factor: 0.6;
}

/* === Prompt Message === */
#prompt {
  position: relative;
  overflow: hidden;
  background: #333;
  color: #e0e0e0;
  font-family: inherit;
  font-size: var(--prompt-font-size);
  letter-spacing: 0.5px;
  line-height: 1.4;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  margin: 16px 0 12px;
  width: 100%;
  box-sizing: border-box;
  text-align: center;
  box-shadow:
    inset -1px -1px 1.5px rgba(255, 255, 255, 0.4),
    inset 1px 1px 2px rgba(0, 0, 0, 0.5),
    0 0 12px rgba(0, 0, 0, 0.3);
  min-height: 80px;
}

#prompt .prompt-text {
  position: absolute;
  inset: 0;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 1.5s ease;
}

#prompt::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.4),
    rgba(255, 255, 255, 0)
  );
  opacity: calc(0.4 * var(--highlight-factor));
  pointer-events: none;
  mix-blend-mode: overlay;
}

#prompt::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(255, 255, 255, 0.6),
    rgba(255, 255, 255, 0) 60%
  );
  opacity: calc(0.15 * var(--highlight-factor));
  pointer-events: none;
  mix-blend-mode: screen;
}

/* === Keyboard and Wave Controls === */
.keyboard-wrapper {
  position: relative;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

#waveControls {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  transform: translateX(calc(-100% - 12px));
  width: 240px;
  padding: 20px 24px;
  box-sizing: border-box;
  display: flex;
  gap: 14px;
  border-radius: 8px;
  background: rgba(255, 255, 255, calc(0.09 * var(--panel-strength)));
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.19);
  box-shadow:
    inset -1px -1px 1.5px rgba(255, 255, 255, 0.4),
    inset 1px 1px 2px rgba(0, 0, 0, 0.5),
    0 4px 8px rgba(0, 0, 0, 0.2);
  contain: content;
  content-visibility: auto;
}

#quickStart {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  transform: translateX(calc(100% + 12px));
  width: 240px;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: flex-start;
  overflow: hidden;
  box-sizing: border-box;
  border-radius: 8px;
  background: rgba(255, 255, 255, calc(0.09 * var(--panel-strength)));
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.19);
  box-shadow:
    inset -1px -1px 1.5px rgba(255, 255, 255, 0.4),
    inset 1px 1px 2px rgba(0, 0, 0, 0.5),
    0 4px 8px rgba(0, 0, 0, 0.2);
  contain: content;
  content-visibility: auto;
}

.quickstart-scroll {
  flex: 1;
  width: 100%;
  overflow-y: auto;
  padding-right: 4px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.3) rgba(255, 255, 255, 0.1);
}

.quickstart-scroll::-webkit-scrollbar {
  width: 6px;
}

.quickstart-scroll::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

.quickstart-scroll::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.3);
  border-radius: 3px;
}

.quickstart-scroll::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.5);
}

#quickStart::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.5),
    rgba(255, 255, 255, 0)
  );
  opacity: calc(0.33 * var(--highlight-factor));
  pointer-events: none;
  mix-blend-mode: overlay;
}

#quickStart::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(255, 255, 255, 0.55),
    rgba(255, 255, 255, 0) 60%
  );
  opacity: calc(0.19 * var(--highlight-factor));
  pointer-events: none;
  mix-blend-mode: screen;
}

#quickStart ul {
  margin: 0;
  padding-left: 18px;
  color: var(--ui-text);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.3px;
}

#quickStart li {
  margin-bottom: 6px;
}

#quickStart h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.6px;
  color: var(--ui-text);
}

#waveControls::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.5),
    rgba(255, 255, 255, 0)
  );
  opacity: calc(0.33 * var(--highlight-factor));
  pointer-events: none;
  mix-blend-mode: overlay;
}

#waveControls::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(255, 255, 255, 0.55),
    rgba(255, 255, 255, 0) 60%
  );
  opacity: calc(0.19 * var(--highlight-factor));
  pointer-events: none;
  mix-blend-mode: screen;
}

.wave-slider {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  padding: 8px 0;
}

.wave-range {
  -webkit-appearance: slider-vertical;
  appearance: slider-vertical;
  writing-mode: bt-lr;
  width: 3px;
  height: calc(100% - 40px);
  background: transparent;
  border-radius: 1.5px;
  outline: none;
  -webkit-tap-highlight-color: transparent;
  accent-color: hsla(0, 0%, 100%, var(--slider-track-opacity));
}

.wave-range::-webkit-slider-runnable-track {
  width: 3px;
  height: 100%;
  background: rgba(255, 255, 255, var(--slider-track-opacity));
  border-radius: 1.5px;
  box-shadow:
    inset 1px 1px 1px rgba(0, 0, 0, 0.8),
    inset -1px -1px 1px rgba(255, 255, 255, 0.5);
}

.wave-range::-moz-range-track {
  width: 3px;
  height: 100%;
  background: rgba(255, 255, 255, var(--slider-track-opacity));
  border-radius: 1.5px;
  box-shadow:
    inset 1px 1px 1px rgba(0, 0, 0, 0.8),
    inset -1px -1px 1px rgba(255, 255, 255, 0.5);
}

.wave-range::-moz-range-progress {
  width: 3px;
  height: 100%;
  background: rgba(255, 255, 255, var(--slider-track-opacity));
  border-radius: 1.5px;
  box-shadow:
    inset 1px 1px 1px rgba(0, 0, 0, 0.8),
    inset -1px -1px 1px rgba(255, 255, 255, 0.5);
}

.wave-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.4),
    rgba(120, 120, 120, 0.2)
  );
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
  margin-left: -4.5px;
}

.wave-range::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.4),
    rgba(120, 120, 120, 0.2)
  );
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
  margin-left: -4.5px;
}

.wave-range::-webkit-slider-thumb:active,
.wave-range::-moz-range-thumb:active {
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.4),
    rgba(120, 120, 120, 0.2)
  );
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}

.wave-range:active::-webkit-slider-runnable-track,
.wave-range:active::-moz-range-track,
.wave-range:active::-moz-range-progress {
  background: rgba(255, 255, 255, var(--slider-track-opacity));
}

.wave-icon {
  width: 20px;
  height: 10px;
  margin-top: 6px;
  stroke: var(--ui-text);
  stroke-width: 2;
  fill: none;
}

.keyboard {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0;
  gap: 12px;
}

.keyboard-row {
  display: flex;
  justify-content: center;
  gap: 12px;
}

/* Row Indentation to Reflect QWERTY Layout */
.keyboard-row.row-numbers {
  padding-left: 0;
}

.keyboard-row.row-top {
  padding-left: 35px;
}

.keyboard-row.row-mid {
  padding-left: 65px;
}

.keyboard-row.row-bottom {
  padding-left: 95px;
}

/* === Base Button Styling === */
button {
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  border: none;
  cursor: pointer;
  text-shadow:
    -0.5px -0.5px 0 rgba(255, 255, 255, 0.4),
    0.5px 0.5px 0 color-mix(in hsl, currentColor 40%, black);
}

label {
  text-shadow:
    -0.5px -0.5px 0 rgba(255, 255, 255, 0.4),
    0.5px 0.5px 0 color-mix(in hsl, currentColor 40%, black);
}

/* === Key Buttons === */
.keyboard button {
  position: relative;
  overflow: hidden;
  width: 57px;
  height: 57px;
  font-size: 20px;
  color: hsla(
    calc(var(--key-hue, 0) * 1deg),
    calc(var(--key-text-chroma) * 100%),
    calc(var(--key-text-light) * 100%),
    0.95
  );
  border-radius: 8px;
  backdrop-filter: blur(20px);
  background: hsla(
    calc(var(--key-hue, 0) * 1deg),
    calc(var(--key-chroma) * 100%),
    calc(var(--key-lightness) * 100%),
    var(--key-opacity)
  );
  border: 1px solid rgba(255, 255, 255, 0.24);
  box-shadow:
    inset -1px -1px 1.5px rgba(255, 255, 255, 0.4),
    inset 1px 1px 2px rgba(0, 0, 0, 0.5),
    0 8px 16px rgba(22, 22, 79, 0.65),
    0 6px 20px rgba(0, 0, 0, 0.19);
  transition:
    transform 0.1s ease,
    box-shadow 0.1s ease;
  will-change: transform, filter;
}

.keyboard button::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.75),
    rgba(255, 255, 255, 0)
  );
  opacity: calc(0.45 * var(--highlight-factor));
  pointer-events: none;
  mix-blend-mode: overlay;
}

.keyboard button::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(255, 255, 255, 0.7),
    rgba(255, 255, 255, 0) 60%
  );
  opacity: calc(0.25 * var(--highlight-factor));
  pointer-events: none;
  mix-blend-mode: screen;
}

.keyboard button:hover {
  transform: scale(1.05);
  filter: brightness(1.1);
}

.keyboard button.active {
  transform: scale(1.1);
  box-shadow: 0 0 9.5px
    hsla(calc(var(--key-hue, 0) * 1deg), calc(var(--key-chroma) * 100%), 80%, 1);
  filter: saturate(1.1);
  will-change: transform;
}

/* === Chat Output Window === */
#chatOutput {
  position: relative;
  overflow: hidden;
  background: #202020;
  color: #e3e3e3;
  font-family: inherit;
  font-size: var(--chat-font-size);
  letter-spacing: 0.5px;
  line-height: 1.4;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 12px;
  padding: 16px 24px;
  margin: 0 auto 10px;
  width: 100%;
  box-sizing: border-box;
  height: 198px;
  white-space: pre-wrap;
  overflow-wrap: break-word;
  word-break: break-word;
  overflow-y: auto;
  box-shadow:
    inset -1px -1px 1.5px rgba(255, 255, 255, 0.35),
    inset 1px 1px 2px rgba(0, 0, 0, 0.6),
    0 0 10px rgba(0, 0, 0, 0.4);
  user-select: text;
  cursor: text;
  caret-color: #fff;
}

#chatOutput {
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.25) transparent;
}
#chatOutput::-webkit-scrollbar {
  width: 8px;
}
#chatOutput::-webkit-scrollbar-track {
  background: transparent;
}
#chatOutput::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.25);
  border-radius: 4px;
}

#chatOutput:focus {
  outline: none;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.4);
}

#chatOutput::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.3),
    rgba(255, 255, 255, 0)
  );
  opacity: calc(0.285 * var(--highlight-factor));
  pointer-events: none;
  mix-blend-mode: overlay;
}

#chatOutput::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(255, 255, 255, 0.4),
    rgba(255, 255, 255, 0) 60%
  );
  opacity: calc(0.095 * var(--highlight-factor));
  pointer-events: none;
  mix-blend-mode: screen;
}

#chatOutput span {
  margin-right: 0;
  font-weight: 700;
}

/* === Control Buttons (Clear, Reverb, Replay) === */
#chatControls {
  display: flex;
  gap: 14px;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  box-sizing: border-box;
  margin: 0;
  flex-wrap: wrap;
}

#chatControls button {
  position: relative;
  overflow: hidden;
  min-width: 57px;
  height: 57px;
  padding: 10px 14px;
  box-sizing: border-box;
  border-radius: 8px;
  background: rgba(255, 255, 255, calc(0.07 * var(--panel-strength)));
  backdrop-filter: blur(10px);
  color: var(--ui-text);
  font-family:
    "Atkinson Hyperlegible",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  border: 1px solid rgba(255, 255, 255, 0.19);
  box-shadow:
    inset -1px -1px 1.5px rgba(255, 255, 255, 0.4),
    inset 1px 1px 2px rgba(0, 0, 0, 0.5),
    0 4px 8px rgba(0, 0, 0, 0.2);
  transition:
    box-shadow 0.2s ease,
    background 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  flex: 1 1 0;
}
#drumModeButton {
  font-size: 10px;
}
#chatControls button:hover {
  background: rgba(255, 255, 255, calc(0.14 * var(--panel-strength)));
  box-shadow:
    inset -1px -1px 1.5px rgba(255, 255, 255, 0.4),
    inset 1px 1px 2px rgba(0, 0, 0, 0.5),
    0 0 10px rgba(200, 220, 255, 0.855);
}
#chatControls button:active {
  background: rgba(255, 255, 255, calc(0.18 * var(--panel-strength)));
  box-shadow:
    inset -1px -1px 1.5px rgba(255, 255, 255, 0.4),
    inset 1px 1px 2px rgba(0, 0, 0, 0.5),
    0 0 14px rgba(220, 235, 255, 0.95);
}
#chatControls button.on {
  background: rgba(255, 255, 255, calc(0.18 * var(--panel-strength)));
  box-shadow:
    inset -1px -1px 1.5px rgba(255, 255, 255, 0.4),
    inset 1px 1px 2px rgba(0, 0, 0, 0.5),
    0 0 14px rgba(220, 235, 255, 0.95);
}

#speedControl,
#reverbControl,
#tonalControl {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 8px;
  height: 57px;
  padding: 10px 14px;
  box-sizing: border-box;
  border-radius: 8px;
  background: rgba(255, 255, 255, calc(0.07 * var(--panel-strength)));
  backdrop-filter: blur(10px);
  color: var(--ui-text);
  font-family:
    "Atkinson Hyperlegible",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  border: 1px solid rgba(255, 255, 255, 0.19);
  box-shadow:
    inset -1px -1px 1.5px rgba(255, 255, 255, 0.4),
    inset 1px 1px 2px rgba(0, 0, 0, 0.5),
    0 4px 8px rgba(0, 0, 0, 0.2);
  transition:
    box-shadow 0.2s ease,
    background 0.2s ease;
}

#speedControl,
#reverbControl {
  flex: 1 1 220px;
}

#chatControls label,
#tonalControl label {
  font-family:
    "Atkinson Hyperlegible",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

#chatControls button::before,
#speedControl::before,
#reverbControl::before,
#tonalControl::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.5),
    rgba(255, 255, 255, 0)
  );
  opacity: calc(0.33 * var(--highlight-factor));
  pointer-events: none;
  mix-blend-mode: overlay;
}

#chatControls button::after,
#speedControl::after,
#reverbControl::after,
#tonalControl::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(255, 255, 255, 0.55),
    rgba(255, 255, 255, 0) 60%
  );
  opacity: calc(0.19 * var(--highlight-factor));
  pointer-events: none;
  mix-blend-mode: screen;
}

#chatControls input[type="range"],
#tonalControl input[type="range"] {
  -webkit-appearance: none;
  flex: 1;
  background: transparent;
  outline: none;
  -webkit-tap-highlight-color: transparent;
  height: 12px;
}

#chatControls input[type="range"]::-webkit-slider-runnable-track,
#tonalControl input[type="range"]::-webkit-slider-runnable-track {
  height: 3px;
  background: rgba(255, 255, 255, var(--slider-track-opacity));
  border-radius: 1.5px;
  box-shadow:
    inset 1px 1px 1px rgba(0, 0, 0, 0.8),
    inset -1px -1px 1px rgba(255, 255, 255, 0.5);
}

#chatControls input[type="range"]::-moz-range-track,
#tonalControl input[type="range"]::-moz-range-track {
  height: 3px;
  background: rgba(255, 255, 255, var(--slider-track-opacity));
  border-radius: 1.5px;
  box-shadow:
    inset 1px 1px 1px rgba(0, 0, 0, 0.8),
    inset -1px -1px 1px rgba(255, 255, 255, 0.5);
}

#chatControls input[type="range"]:focus,
#tonalControl input[type="range"]:focus {
  outline: none;
}

#chatControls input[type="range"]::-webkit-slider-thumb,
#tonalControl input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.9),
    rgba(255, 255, 255, 0.2)
  );
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  margin-top: -4.5px;
}

#chatControls input[type="range"]::-moz-range-thumb,
#tonalControl input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.9),
    rgba(255, 255, 255, 0.2)
  );
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  margin-top: -4.5px;
}

#chatControls svg.icon {
  width: 20px;
  height: 20px;
  fill: var(--ui-text);
  shape-rendering: geometricPrecision;
  filter: drop-shadow(-0.5px -0.5px 0 rgba(255, 255, 255, 0.4))
    drop-shadow(0.5px 0.5px 0 color-mix(in hsl, currentColor 40%, black));
}

#speedControl:hover,
#reverbControl:hover,
#tonalControl:hover {
  background: rgba(255, 255, 255, calc(0.14 * var(--panel-strength)));
}

#speedControl:focus-within,
#reverbControl:focus-within,
#tonalControl:focus-within {
  background: rgba(255, 255, 255, calc(0.14 * var(--panel-strength)));
}

#modeButton.mode-toggle {
  display: flex;
  gap: 2px;
  justify-content: center;
  align-items: center;
  font-family:
    "Atkinson Hyperlegible",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 11px;
}

#modeButton .mode-option {
  flex: 0 0 auto;
  text-align: center;
  opacity: 0.5;
  transition: opacity 0.2s ease;
}

#modeButton .mode-option.active {
  opacity: 1;
}

@media (min-width: 900px) {
  #chatControls {
    flex-wrap: nowrap;
  }
}
#tonalControl {
  width: 100%;
  margin: 10px 0;
}

@media (max-width: 600px) {
  .keyboard {
    gap: 8px;
  }
  .keyboard-row {
    gap: 8px;
  }
  .keyboard button {
    width: 30px;
    height: 30px;
    font-size: 14px;
  }
  .keyboard-row.row-top {
    padding-left: 18px;
  }
  .keyboard-row.row-mid {
    padding-left: 36px;
  }
  .keyboard-row.row-bottom {
    padding-left: 54px;
  }
}