/* Chordji — skinned to match brenopaiva.com (spec §10).
   Chordji is a separate repo, so the portfolio's palette tokens are copied
   here verbatim rather than imported. Single theme, no dark mode: the
   portfolio has none and Chordji should look like it belongs. */

:root {
  --primary-0: #809EC0;
  --primary-1: #CADFF7;
  --primary-2: #A3C1E1;
  --primary-3: #647F9D;
  --primary-4: #39516B;
  --secondary-1-0: #ABE692;
  --secondary-1-1: #D9FCCA;
  --secondary-1-2: #C0F3AB;
  --secondary-1-3: #96CF7E;
  --secondary-1-4: #5B8C46;
  --secondary-2-0: #A183C5;
  --secondary-2-1: #DFCBF8;
  --secondary-2-2: #C1A5E3;
  --secondary-2-3: #8368A3;
  --secondary-2-4: #533B6F;

  /* The site has no red. These two are tuned to the saturation and softness
     of the ramps above so they read as a missing member of the same family
     rather than a bootstrap red (spec §10). */
  --wrong-0: #E08585;
  --wrong-1: #A34B4B;

  --ink: #14202c;
  --key-white: #FAF7F0;
  --key-outline: #1a1a1a;
  --panel-radius-x: 140px;
  --panel-radius-y: 44px;
}

* { box-sizing: border-box; }

html, body {
  overflow-x: hidden;
}

body {
  margin: 0;
  min-height: 100%;
  background: var(--primary-2);
  color: var(--ink);
  font-family: 'Share Tech Mono', monospace;
  font-size: 16px;
  line-height: 1.5;
}

.hidden { display: none !important; }

a { color: var(--ink); }

kbd {
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.72em;
  padding: 1px 5px;
  border: 1px solid var(--primary-4);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.55);
  color: var(--primary-4);
  white-space: nowrap;
}

/* ---------- Nav + header (spec §10) ---------- */

.site-nav {
  background: var(--primary-4);
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.35);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 20px;
  height: 55px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.nav-brand {
  color: var(--secondary-1-0);
  font-family: 'VT323', monospace;
  font-size: 26px;
  letter-spacing: 1px;
}

.nav-back {
  color: white;
  text-decoration: none;
  font-size: 15px;
}
.nav-back:hover { color: var(--secondary-1-0); }

.space-header {
  background: var(--primary-4);
  padding: 34px 20px 30px;
  display: flex;
  flex-flow: column;
  align-items: center;
  justify-content: center;
}

.text-header {
  margin: 0;
  text-align: center;
  font-family: 'VT323', monospace;
  font-weight: normal;
  font-size: clamp(44px, 12vw, 80px);
  line-height: 1;
  color: var(--secondary-1-0);
  letter-spacing: clamp(3px, 1.4vw, 10px);
  text-shadow: -3px 0 #222, 0 3px #222, 3px 0 #222, 0 -3px #222;
}

.tagline {
  margin: 14px 0 0;
  color: var(--primary-1);
  letter-spacing: 2px;
  font-size: 15px;
  text-align: center;
}

/* While a question is up the title band collapses so the keyboard sits
   above the fold on a phone. */
body.is-playing .space-header { padding: 12px 20px 14px; }
body.is-playing .text-header { font-size: clamp(26px, 7vw, 38px); letter-spacing: clamp(2px, 1vw, 6px); }
body.is-playing .tagline { display: none; }

.site-footer {
  margin-top: 40px;
  background: var(--primary-4);
  color: var(--primary-1);
  text-align: center;
  padding: 18px 20px;
  font-size: 14px;
}
.site-footer a { color: var(--secondary-1-0); }

/* ---------- Layout ---------- */

.app {
  max-width: 920px;
  margin: 0 auto;
  padding: 28px 16px 8px;
}

.screen {
  display: flex;
  flex-flow: column;
  gap: 22px;
}

/* Panels use the portfolio's .tv card treatment. The radius is given in
   absolute units rather than 50% / 10% so a 900px panel keeps the same
   curvature a 300px project card has, instead of collapsing into a lens. */
.panel {
  background: var(--secondary-2-2);
  border: 2px solid var(--secondary-2-3);
  border-radius: var(--panel-radius-x) / var(--panel-radius-y);
  box-shadow: 0 1px 13px 1px rgba(0, 0, 0, 0.28);
  padding: 40px clamp(24px, 5vw, 48px);
  display: flex;
  flex-flow: column;
  gap: 22px;
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
}

.panel--wide { max-width: 100%; }

.panel-title {
  margin: 0;
  font-family: 'VT323', monospace;
  font-weight: normal;
  font-size: clamp(30px, 5vw, 40px);
  text-align: center;
  color: white;
  text-shadow: -1px 0 black, 0 1px black, 1px 0 black, 0 -1px black;
  letter-spacing: 1px;
}

.panel-title--small { font-size: clamp(24px, 4vw, 30px); }

/* ---------- Buttons (the .project-links h3 treatment) ---------- */

.btn {
  font-family: 'Share Tech Mono', monospace;
  font-size: 16px;
  color: var(--ink);
  background: var(--primary-1);
  border: 2px solid var(--primary-0);
  border-radius: 20px;
  padding: 10px 18px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.08s ease;
}

.btn:hover:not(:disabled) { background: white; }
.btn:active:not(:disabled) { transform: translateY(2px); }

.btn:focus-visible,
.toggle-btn:focus-visible,
.mode-btn:focus-visible,
.key:focus-visible,
input:focus-visible {
  outline: 3px solid var(--secondary-2-4);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--secondary-1-1);
  border: 2px solid var(--secondary-1-0);
  font-size: 20px;
}
.btn-primary:hover:not(:disabled) { background: var(--secondary-1-2); }

.btn-play {
  background: var(--secondary-1-1);
  border: 2px solid var(--secondary-1-0);
}
.btn-play:hover:not(:disabled) { background: var(--secondary-1-2); }

.btn-ghost {
  background: rgba(255, 255, 255, 0.5);
  border: 2px solid var(--secondary-2-3);
}
.btn-ghost:hover:not(:disabled) { background: rgba(255, 255, 255, 0.8); }

.btn-danger {
  background: var(--wrong-0);
  border: 2px solid var(--wrong-1);
  color: #2b1010;
}
.btn-danger:hover:not(:disabled) { background: #eb9b9b; }

.btn-large {
  font-size: clamp(20px, 3.4vw, 24px);
  padding: 13px 30px;
  align-self: center;
}

.btn-small { font-size: 14px; padding: 6px 14px; }

.btn-icon {
  padding: 6px 12px;
  border-radius: 14px;
  font-size: 15px;
}

/* ---------- Setup screen ---------- */

.field {
  display: flex;
  flex-flow: column;
  gap: 10px;
}

.field-label {
  font-family: 'VT323', monospace;
  font-size: 26px;
  color: var(--secondary-2-4);
  letter-spacing: 1px;
}

.field-note {
  margin: 0;
  font-size: 14px;
  color: var(--secondary-2-4);
}

.mode-group {
  display: grid;
  gap: 10px;
}

.mode-btn {
  font-family: 'Share Tech Mono', monospace;
  text-align: left;
  display: grid;
  gap: 3px;
  background: rgba(255, 255, 255, 0.5);
  border: 2px solid var(--secondary-2-3);
  border-radius: 18px;
  padding: 12px 16px;
  cursor: pointer;
  color: var(--ink);
  transition: background 0.15s ease, transform 0.08s ease;
}
.mode-btn:hover { background: rgba(255, 255, 255, 0.8); }
.mode-btn.active {
  background: var(--secondary-1-1);
  border-color: var(--secondary-1-4);
  box-shadow: inset 0 0 0 2px var(--secondary-1-0);
}

.mode-name {
  font-family: 'VT323', monospace;
  font-size: 26px;
  line-height: 1.1;
}
.mode-blurb { font-size: 14px; }
.mode-skill {
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--secondary-2-4);
}
.mode-btn.active .mode-skill { color: var(--secondary-1-4); }

.toggle-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.toggle-btn {
  font-family: 'Share Tech Mono', monospace;
  font-size: 16px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.5);
  border: 2px solid var(--secondary-2-3);
  border-radius: 20px;
  padding: 8px 20px;
  cursor: pointer;
  flex: 1 1 auto;
  transition: background 0.15s ease, transform 0.08s ease;
}
.toggle-btn:hover { background: rgba(255, 255, 255, 0.8); }
.toggle-btn:active { transform: translateY(2px); }
.toggle-btn.active {
  background: var(--secondary-1-1);
  border-color: var(--secondary-1-4);
  box-shadow: inset 0 0 0 2px var(--secondary-1-0);
}

.toggle-group--sub .toggle-btn { font-size: 15px; padding: 6px 16px; }

.sound-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.volume-label { font-size: 14px; }

#volume,
#free-volume {
  flex: 1 1 140px;
  accent-color: var(--secondary-2-4);
  min-width: 120px;
}

.volume-value {
  font-size: 14px;
  min-width: 44px;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  cursor: pointer;
}
.checkbox-row input { accent-color: var(--secondary-2-4); width: 18px; height: 18px; }

.stat-line {
  margin: 0;
  text-align: center;
  font-size: 15px;
  color: var(--secondary-2-4);
}

/* A second way out of the setup panel, set below the Start button and
   visibly quieter than it — Start is still the main road. */
.free-play-entry {
  display: flex;
  flex-flow: column;
  align-items: center;
  gap: 6px;
  padding-top: 4px;
  border-top: 2px dashed var(--secondary-2-3);
}

.free-play-entry .field-note { text-align: center; }
.free-play-entry .btn-large { margin-top: 14px; }

/* ---------- Question screen ---------- */

.play-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 100%;
}

.progress {
  font-family: 'VT323', monospace;
  font-size: 26px;
  color: var(--primary-4);
}

.streak { font-size: 18px; }

.timer-bar {
  height: 8px;
  background: rgba(57, 81, 107, 0.25);
  border: 2px solid var(--primary-4);
  border-radius: 6px;
  overflow: hidden;
  margin-top: -12px;
}

.timer-bar span {
  display: block;
  height: 100%;
  width: 100%;
  background: var(--secondary-1-0);
  transition: width 0.9s linear;
}

.timer-bar.is-low span { background: var(--wrong-0); }

.prompt-question {
  margin: 0;
  text-align: center;
  font-family: 'VT323', monospace;
  font-size: clamp(26px, 4.4vw, 34px);
  color: white;
  text-shadow: -1px 0 black, 0 1px black, 1px 0 black, 0 -1px black;
  letter-spacing: 1px;
}

.chord-name {
  margin: 0;
  text-align: center;
  font-family: 'VT323', monospace;
  font-size: clamp(52px, 13vw, 92px);
  line-height: 1;
  color: var(--secondary-1-0);
  letter-spacing: clamp(2px, 1vw, 6px);
  text-shadow: -3px 0 #222, 0 3px #222, 3px 0 #222, 0 -3px #222;
}

.audio-controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 10px;
}

.selection-counter {
  margin: 0;
  text-align: center;
  font-size: 15px;
  color: var(--secondary-2-4);
  min-height: 1.5em;
}

.play-actions {
  display: flex;
  justify-content: center;
}

/* ---------- Free play (spec §9.5) ---------- */

.octave-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.octave-btn {
  font-size: 18px;
  padding: 8px 16px;
  min-width: 84px;
}

.octave-display {
  font-family: 'VT323', monospace;
  font-size: clamp(26px, 5vw, 34px);
  line-height: 1;
  color: white;
  text-shadow: -1px 0 black, 0 1px black, 1px 0 black, 0 -1px black;
  letter-spacing: 1px;
  text-align: center;
  flex: 1 1 auto;
}

.free-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px 22px;
}

.free-tools .sound-row { flex: 1 1 240px; justify-content: center; }
.free-tools .toggle-group { flex: 0 1 auto; }

/* ---------- Piano keyboard (spec §8) ---------- */

.keyboard {
  width: 100%;
  user-select: none;
  -webkit-user-select: none;
}

.keyboard-keys {
  position: relative;
  display: flex;
  height: clamp(158px, 30vw, 210px);
  background: var(--key-outline);
  border: 3px solid var(--key-outline);
  border-radius: 6px 6px 10px 10px;
  box-shadow: 0 4px 0 0 rgba(0, 0, 0, 0.35);
}

.key {
  position: relative;
  display: flex;
  flex-flow: column;
  align-items: center;
  justify-content: space-between;
  padding: 7px 2px 9px;
  font-family: 'Share Tech Mono', monospace;
  border: 3px solid var(--key-outline);
  cursor: pointer;
  touch-action: manipulation;
  transition: background 0.12s ease, transform 0.06s ease;
}

.key--white {
  background: var(--key-white);
  color: var(--ink);
  border-radius: 0 0 7px 7px;
  height: 100%;
}

.key--black {
  position: absolute;
  top: 0;
  height: 62%;
  background: var(--primary-4);
  color: #E8EEF5;
  border-radius: 0 0 6px 6px;
  z-index: 2;
  padding: 5px 1px 7px;
}

.key:active:not(:disabled),
.key.is-pressed {
  transform: translateY(2px);
}

.key:hover:not(:disabled) { filter: brightness(1.06); }

.key:disabled { cursor: default; }

.key-name {
  font-size: clamp(12px, 2.6vw, 15px);
  letter-spacing: 0.5px;
  pointer-events: none;
}
.key--black .key-name { font-size: clamp(10px, 2.1vw, 12px); }

.key-shortcut {
  font-size: clamp(9px, 1.9vw, 11px);
  opacity: 0.42;
  letter-spacing: 0.5px;
  pointer-events: none;
}

.key--black .key-shortcut { opacity: 0.62; }

.keyboard.hide-shortcuts .key-shortcut { visibility: hidden; }

.key-mark {
  font-size: clamp(15px, 3.4vw, 21px);
  line-height: 1;
  font-weight: bold;
  pointer-events: none;
}

/* Selected: chord modes toggle keys on and they stay lit. */
.key--white.is-selected { background: var(--secondary-2-1); }
.key--black.is-selected { background: var(--secondary-2-2); color: var(--ink); }

/* Feedback states — always paired with a glyph in .key-mark, never colour
   alone (spec §8). */
.key--white.is-correct { background: var(--secondary-1-1); }
.key--black.is-correct { background: var(--secondary-1-3); color: var(--ink); }
.key.is-correct { border-color: var(--secondary-1-4); }

.key--white.is-wrong { background: var(--wrong-0); }
.key--black.is-wrong { background: var(--wrong-1); color: #fff; }
.key.is-wrong { border-color: var(--wrong-1); }

/* Missed reads differently from both: striped and dashed, not just a colour. */
.key.is-missed {
  border-style: dashed;
  border-color: var(--secondary-2-4);
  background-image: repeating-linear-gradient(
    45deg,
    transparent 0 6px,
    rgba(83, 59, 111, 0.28) 6px 12px
  );
}
.key--white.is-missed { background-color: var(--secondary-2-1); }
.key--black.is-missed { background-color: var(--secondary-2-2); color: var(--ink); }

/* The visual counterpart to a note sounding. Each layer lifts only within
   its own row: a flashing white key must never paint over the black keys
   sitting on top of it. */
.key.is-sounding { animation: key-pulse 0.34s ease-out; }
.key--white.is-sounding { z-index: 1; }
.key--black.is-sounding { z-index: 3; }

@keyframes key-pulse {
  0% { box-shadow: 0 0 0 0 rgba(171, 230, 146, 0.95); }
  100% { box-shadow: 0 0 0 14px rgba(171, 230, 146, 0); }
}

.key-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin: 0;
  font-size: 13px;
  color: var(--secondary-2-4);
}
.legend-correct { color: var(--secondary-1-4); }
.legend-wrong { color: var(--wrong-1); }
.legend-missed { color: var(--secondary-2-4); }

/* ---------- Feedback (inline, spec §9.3) ---------- */

.feedback {
  display: flex;
  flex-flow: column;
  gap: 10px;
  align-items: center;
  text-align: center;
  padding: 18px;
  border-radius: 22px;
  border: 2px solid var(--secondary-2-3);
  background: rgba(255, 255, 255, 0.55);
}

.feedback--correct {
  background: var(--secondary-1-1);
  border-color: var(--secondary-1-4);
  animation: soft-pulse 0.45s ease-out;
}

@keyframes soft-pulse {
  0% { transform: scale(0.985); box-shadow: 0 0 0 0 rgba(91, 140, 70, 0.5); }
  100% { transform: scale(1); box-shadow: 0 0 0 16px rgba(91, 140, 70, 0); }
}

.feedback--incorrect {
  background: var(--wrong-0);
  border-color: var(--wrong-1);
}

.feedback-status {
  margin: 0;
  font-family: 'VT323', monospace;
  font-size: clamp(28px, 5vw, 38px);
  letter-spacing: 1px;
}

.feedback-answer { margin: 0; font-size: 17px; }
.feedback-teach { margin: 0; font-size: 15px; font-style: italic; }

.shake { animation: shake 0.36s ease-in-out; }

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-7px); }
  40% { transform: translateX(7px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

/* ---------- Shortcut legend ---------- */

.legend-card {
  background: var(--primary-1);
  border: 2px solid var(--primary-0);
  border-radius: 22px;
  padding: 14px 18px;
  display: flex;
  flex-flow: column;
  gap: 8px;
  align-items: flex-start;
  font-size: 14px;
}

.legend-title {
  margin: 0;
  font-family: 'VT323', monospace;
  font-size: 22px;
}

.legend-body { margin: 0; line-height: 1.9; }
.legend-body kbd { margin-right: 2px; }

/* ---------- Results ---------- */

.results-summary {
  display: flex;
  flex-flow: column;
  align-items: center;
  gap: 6px;
}

.results-accuracy {
  font-family: 'VT323', monospace;
  font-size: clamp(64px, 16vw, 104px);
  line-height: 1;
  color: var(--secondary-1-0);
  text-shadow: -3px 0 #222, 0 3px #222, 3px 0 #222, 0 -3px #222;
}

.results-sub { font-size: 18px; }

.results-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 6px;
}

.chip {
  background: rgba(255, 255, 255, 0.6);
  border: 2px solid var(--secondary-2-3);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 14px;
}

.most-missed {
  margin: 0;
  text-align: center;
  font-size: 15px;
  color: var(--secondary-2-4);
}

.results-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}
.results-actions .btn-large { align-self: auto; }

.review-panel {
  background: var(--primary-1);
  border-color: var(--primary-0);
}
.review-panel .panel-title { color: var(--primary-4); text-shadow: none; }

.review-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-flow: column;
  gap: 8px;
}

.review-item {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 2px solid var(--primary-0);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.6);
}

.review-correct { border-color: var(--secondary-1-4); background: var(--secondary-1-1); }
.review-incorrect {
  border-color: var(--wrong-1);
  background: #EBB4B4;
  background: color-mix(in srgb, var(--wrong-0) 55%, white);
}
.review-unanswered { border-color: var(--primary-3); background: rgba(255, 255, 255, 0.45); }

.review-icon {
  font-size: 20px;
  text-align: center;
  font-weight: bold;
}

.review-body { min-width: 0; }

.review-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
}

.review-title { font-size: 17px; }
.review-meta { font-size: 12px; opacity: 0.75; }
.review-detail { font-size: 14px; }

.review-play { background: rgba(255, 255, 255, 0.75); }

/* ---------- Audio notice + modal ---------- */

.audio-notice {
  display: block;
  width: calc(100% - 32px);
  max-width: 640px;
  margin: 16px auto -8px;
  font-family: 'Share Tech Mono', monospace;
  font-size: 15px;
  padding: 12px 16px;
  background: var(--secondary-1-1);
  border: 2px solid var(--secondary-1-4);
  border-radius: 20px;
  cursor: pointer;
  color: var(--ink);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20, 32, 44, 0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 200;
}

.modal-card {
  background: var(--secondary-2-2);
  border: 2px solid var(--secondary-2-3);
  border-radius: 28px;
  padding: 26px;
  max-width: 400px;
  width: 100%;
  text-align: center;
  box-shadow: 0 4px 22px rgba(0, 0, 0, 0.4);
}

.modal-card h2 {
  margin: 0 0 8px;
  font-family: 'VT323', monospace;
  font-weight: normal;
  font-size: 32px;
}

.modal-card p { margin: 0 0 18px; font-size: 15px; }

.modal-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Responsive (works from 360px, no horizontal scroll) ---------- */

@media (max-width: 640px) {
  :root {
    --panel-radius-x: 84px;
    --panel-radius-y: 32px;
  }

  .app { padding: 20px 12px 4px; }
  .panel { padding: 32px 18px; gap: 18px; }
  .review-item { grid-template-columns: 22px 1fr auto; padding: 9px 10px; gap: 8px; }
  .review-title { font-size: 15px; }
  .toggle-btn { padding: 8px 12px; }
  .field-label { font-size: 23px; }
  .octave-row { gap: 8px; }
  .octave-btn { min-width: 0; padding: 8px 12px; }

  /* White keys must stay a 44px touch target at 360px wide (spec §8), so the
     keyboard borrows back part of the panel's horizontal padding. */
  .keyboard {
    width: calc(100% + 22px);
    margin-left: -11px;
    margin-right: -11px;
  }
}

/* Shortcut hints are noise on a phone, and dropping them lets Replay and
   Reference share a row. */
@media (max-width: 520px) {
  .audio-controls kbd,
  .play-actions kbd,
  .feedback kbd,
  .octave-btn kbd {
    display: none;
  }

  /* With the Z/X hints gone the arrows are the whole button, so give them
     back the size a thumb needs. */
  .octave-btn { font-size: 22px; padding: 6px 20px; }
  /* Every line of it is about physical keys a phone does not have. The
     question screen's ✓/✕/+ legend is a different .key-legend and stays. */
  .free-legend { display: none; }
}

@media (max-width: 380px) {
  .btn { font-size: 15px; padding: 9px 14px; }
  .key-shortcut { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .btn:active:not(:disabled),
  .toggle-btn:active,
  .key:active:not(:disabled),
  .key.is-pressed {
    transform: none;
  }
}