.sct-shell {
  --sct-ink: #111827;
  --sct-muted: #667085;
  --sct-panel: rgba(255, 255, 255, 0.74);
  --sct-panel-strong: rgba(255, 255, 255, 0.94);
  --sct-line: rgba(15, 23, 42, 0.14);
  --sct-a: #00a3ff;
  --sct-b: #ff2e63;
  --sct-c: #f7c948;
  --sct-shadow: rgba(15, 23, 42, 0.16);

  color: var(--sct-ink);
  width: 100%;
}

.theme-dark .sct-shell {
  --sct-ink: #f8fafc;
  --sct-muted: #a8b3c7;
  --sct-panel: rgba(15, 23, 42, 0.7);
  --sct-panel-strong: rgba(2, 6, 23, 0.92);
  --sct-line: rgba(226, 232, 240, 0.2);
  --sct-shadow: rgba(0, 0, 0, 0.45);
}

.sct-console {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--sct-line);
  border-radius: 8px;
  padding: clamp(1rem, 3vw, 1.6rem);
  background:
    radial-gradient(circle at 20% 20%, rgba(0, 163, 255, 0.22), transparent 28%),
    radial-gradient(circle at 84% 10%, rgba(255, 46, 99, 0.18), transparent 26%),
    linear-gradient(135deg, rgba(248, 250, 252, 0.92), rgba(226, 232, 240, 0.56));
  box-shadow: 0 18px 46px var(--sct-shadow);
}

.theme-dark .sct-console {
  background:
    radial-gradient(circle at 20% 20%, rgba(0, 163, 255, 0.18), transparent 28%),
    radial-gradient(circle at 84% 10%, rgba(255, 46, 99, 0.14), transparent 26%),
    linear-gradient(135deg, rgba(2, 6, 23, 0.96), rgba(15, 23, 42, 0.76));
}

.sct-stage {
  display: grid;
  grid-template-columns: minmax(8rem, 0.9fr) minmax(0, 1.4fr);
  gap: clamp(1rem, 4vw, 2rem);
  align-items: stretch;
}

.sct-orbit,
.sct-frequency-panel,
.sct-result,
.sct-slider-wrap {
  border: 1px solid var(--sct-line);
  background: var(--sct-panel);
  backdrop-filter: blur(18px);
}

.sct-orbit {
  position: relative;
  min-height: 16rem;
  border-radius: 8px;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.sct-ring {
  position: absolute;
  border: 2px solid rgba(0, 163, 255, 0.35);
  border-radius: 50%;
  transform: scale(0.7);
  opacity: 0.78;
}

.sct-ring-a {
  width: 82%;
  aspect-ratio: 1;
}

.sct-ring-b {
  width: 58%;
  aspect-ratio: 1;
  border-color: rgba(255, 46, 99, 0.34);
}

.is-running .sct-ring-a {
  animation: sct-pulse 1.3s ease-out infinite;
}

.is-running .sct-ring-b {
  animation: sct-pulse 1.3s ease-out infinite 0.32s;
}

.sct-driver {
  z-index: 1;
  width: min(8.2rem, 56%);
  aspect-ratio: 1;
  border: 1px solid var(--sct-line);
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: radial-gradient(circle, var(--sct-panel-strong) 0 45%, rgba(0, 163, 255, 0.16) 46% 65%, rgba(17, 24, 39, 0.1) 66%);
}

.sct-speaker-icon {
  width: 3.2rem;
  height: 3.2rem;
  color: var(--sct-a);
}

.sct-frequency-panel {
  border-radius: 8px;
  padding: clamp(1rem, 4vw, 2rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1rem;
}

.sct-status,
.sct-result-label {
  color: var(--sct-muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sct-frequency {
  display: block;
  font-size: clamp(3.3rem, 16vw, 8.5rem);
  font-weight: 950;
  line-height: 0.9;
  letter-spacing: 0;
  color: var(--sct-ink);
  text-shadow: 0 0 28px rgba(0, 163, 255, 0.22);
}

.sct-meter {
  height: 0.8rem;
  border-radius: 8px;
  background: rgba(15, 23, 42, 0.12);
  overflow: hidden;
}

.sct-meter-fill {
  display: block;
  width: 100%;
  height: 100%;
  transform-origin: left center;
  background: linear-gradient(90deg, var(--sct-b), var(--sct-c), var(--sct-a));
}

.sct-readouts,
.sct-controls,
.sct-tuning {
  display: grid;
  gap: 0.75rem;
}

.sct-readouts {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  color: var(--sct-muted);
  font-size: 0.92rem;
}

.sct-controls {
  grid-template-columns: 1.1fr 1.1fr 0.72fr;
  margin-top: 1rem;
}

.sct-primary,
.sct-secondary,
.sct-ghost {
  min-height: 3.2rem;
  border: 1px solid var(--sct-line);
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  font-weight: 850;
  color: var(--sct-ink);
}

.sct-primary {
  color: #fff;
  background: linear-gradient(135deg, #07f, #00b8ff);
}

.sct-primary[data-playing="true"] {
  background: linear-gradient(135deg, #ff2e63, #be123c);
}

.sct-secondary {
  background: var(--sct-panel-strong);
}

.sct-secondary:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.sct-ghost {
  background: transparent;
}

.sct-button-icon {
  width: 1.25rem;
  height: 1.25rem;
}

.sct-tuning {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 0.75rem;
}

.sct-slider-wrap {
  border-radius: 8px;
  padding: 0.85rem;
  color: var(--sct-muted);
  font-weight: 750;
}

.sct-slider {
  width: 100%;
  margin-top: 0.6rem;
  accent-color: var(--sct-a);
}

.sct-result {
  margin-top: 0.75rem;
  border-radius: 8px;
  padding: 1rem;
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: 1rem;
  align-items: center;
}

.sct-result strong {
  display: block;
  margin-top: 0.18rem;
  font-size: 1.45rem;
}

.sct-result p {
  margin: 0;
  color: var(--sct-muted);
}

@keyframes sct-pulse {
  from {
    opacity: 0.9;
    transform: scale(0.42);
  }
  to {
    opacity: 0;
    transform: scale(1.18);
  }
}

@media (max-width: 760px) {
  .sct-stage,
  .sct-controls,
  .sct-tuning,
  .sct-result {
    grid-template-columns: 1fr;
  }

  .sct-orbit {
    min-height: 12rem;
  }

  .sct-readouts {
    grid-template-columns: 1fr;
  }
}