/* A/B comparison — Night Session */

.mix-comparison {
  --comparison-waveform-base: rgba(233, 236, 255, 0.28);
  --comparison-waveform-color: #8f9cff;

  position: relative;
  padding-block: clamp(4.5rem, 10vw, 9rem);
  background:
    radial-gradient(40rem 26rem at 20% 100%, rgba(255, 74, 46, 0.12), transparent 65%),
    radial-gradient(50rem 30rem at 90% 0%, rgba(107, 123, 255, 0.22), transparent 60%),
    var(--night);
  border-top: 1px solid var(--line-light);
}

.comparison-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: center;
}

.comparison-intro {
  display: grid;
  gap: 1.5rem;
  justify-items: start;
}

.comparison-intro h2 {
  font-size: clamp(2.4rem, 4.8vw, 4.6rem);
}

.comparison-copy {
  max-width: 24rem;
  color: var(--paper-deep);
}

.comparison-contact {
  font: 500 0.78rem/1.3 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  padding-bottom: 0.3rem;
  border-bottom: 1px solid var(--signal);
  color: var(--signal-light);
}

.comparison-contact:hover {
  color: var(--white);
}

/* console */

.comparison-console {
  display: grid;
  gap: 1.4rem;
  padding: clamp(1.2rem, 3vw, 2.2rem);
  border: 1px solid var(--line-light);
  border-radius: 20px;
  background: linear-gradient(180deg, #151937, #0b0d1c);
  box-shadow: 0 50px 90px -40px rgba(0, 0, 0, 0.9), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.comparison-track-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.comparison-kicker {
  font: 400 0.68rem/1 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted-light);
}

.comparison-track-heading h3 {
  margin-top: 0.5rem;
  font: 800 clamp(2rem, 4.6vw, 3.6rem)/0.95 var(--font-display);
  font-stretch: 125%;
  letter-spacing: -0.035em;
  text-transform: uppercase;
}

.comparison-credit {
  margin-top: 0.6rem;
  font: 400 0.72rem/1.3 var(--font-mono);
  letter-spacing: 0.04em;
  color: var(--muted-light);
}

.comparison-credit a {
  color: var(--signal-light);
}

.comparison-version-label {
  flex: none;
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--signal);
  border-radius: 999px;
  font: 500 0.68rem/1 var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--signal-light);
}

.comparison-versions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  padding: 0.35rem;
  border: 1px solid var(--line-light);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.3);
}

.comparison-versions button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  min-height: 3rem;
  padding: 0.5rem 1rem;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted-light);
  font: 500 0.74rem/1.1 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.3s, color 0.3s;
}

.comparison-versions button:hover {
  color: var(--white);
}

.comparison-versions button[aria-pressed="true"] {
  background: var(--signal);
  color: var(--ink);
  font-weight: 700;
}

.comparison-version-letter {
  display: grid;
  place-items: center;
  width: 1.5rem;
  height: 1.5rem;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 0.68rem;
}

.comparison-timeline {
  display: grid;
  gap: 0.3rem;
}

.comparison-waveform {
  height: 7rem;
  border-radius: 10px;
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 40px),
    rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.comparison-waveform canvas {
  width: 100%;
  height: 100%;
}

.comparison-seek:disabled {
  opacity: 0.5;
  cursor: default;
}

.comparison-times {
  display: flex;
  justify-content: space-between;
  font: 400 0.7rem/1 var(--font-mono);
  color: var(--muted-light);
}

.comparison-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 2rem;
}

.comparison-play {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  min-height: 3.4rem;
  padding: 0.6rem 1.6rem 0.6rem 0.7rem;
  border: 0;
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  font: 700 0.8rem/1 var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.25s, transform 0.35s var(--ease);
}

.comparison-play:hover {
  background: var(--signal);
  transform: translateY(-2px);
}

.comparison-play-icon {
  width: 2.1rem;
  height: 2.1rem;
  padding: 0.5rem;
  border-radius: 50%;
  background: var(--ink);
  fill: var(--paper);
}

.comparison-icon--pause {
  display: none;
}

.is-playing .comparison-icon--pause {
  display: inline;
}

.is-playing .comparison-icon--play {
  display: none;
}

.is-loading .comparison-play {
  opacity: 0.7;
}

.comparison-match {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  cursor: pointer;
}

.comparison-match input {
  width: 1.2rem;
  height: 1.2rem;
  min-height: 0;
  accent-color: var(--signal);
}

.comparison-match span {
  display: grid;
  font: 500 0.74rem/1.2 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.comparison-match small {
  font-size: 0.64rem;
  letter-spacing: 0.04em;
  color: var(--muted-light);
}

.comparison-status {
  min-height: 1.2em;
  font: 400 0.72rem/1.4 var(--font-mono);
  letter-spacing: 0.04em;
  color: var(--muted-light);
}

.comparison-status.is-error {
  color: #ff8d7a;
}

.comparison-sr-only {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

@media (max-width: 900px) {
  .comparison-layout {
    grid-template-columns: 1fr;
  }
}