.cf-tuner-root {
  position: relative;
  z-index: 80;
}

.cf-tuner-dock {
  position: fixed;
  z-index: 80;
  right: max(1rem, env(safe-area-inset-right));
  bottom: max(1rem, env(safe-area-inset-bottom));
  min-width: 10.5rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.65rem;
  align-items: center;
  padding: 0.72rem 0.9rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.7rem;
  background:
    linear-gradient(145deg, rgba(127, 230, 234, 0.12), transparent 50%),
    rgba(4, 10, 14, 0.94);
  box-shadow: 0 1.25rem 3.5rem rgba(0, 0, 0, 0.56);
  color: var(--text);
  cursor: pointer;
  text-align: left;
  backdrop-filter: blur(18px);
}

.cf-tuner-dock:hover {
  border-color: var(--accent-strong);
  transform: translateY(-2px);
}

.cf-tuner-dock-signal {
  width: 0.68rem;
  height: 0.68rem;
  border: 2px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 1rem rgba(73, 188, 194, 0.5);
}

.is-listening .cf-tuner-dock-signal {
  background: var(--accent-strong);
  animation: cf-tuner-pulse 1.2s ease-in-out infinite alternate;
}

.is-connecting .cf-tuner-dock-signal {
  border-color: #f1c96b;
  background: #f1c96b;
  box-shadow: 0 0 1rem rgba(241, 201, 107, 0.5);
  animation: cf-tuner-pulse 0.8s ease-in-out infinite alternate;
}

.cf-tuner-dock span:nth-child(2) {
  display: flex;
  flex-direction: column;
  font-size: 0.83rem;
  font-weight: 850;
  letter-spacing: 0.04em;
  line-height: 1.1;
}

.cf-tuner-dock small,
.cf-tuner-code {
  color: var(--subtle);
  font-size: 0.56rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.cf-tuner-dock strong {
  min-width: 2.6rem;
  color: var(--accent-strong);
  font-size: 1.12rem;
  text-align: right;
}

.cf-tuner-dialog {
  width: min(100% - 2rem, 43rem);
  max-height: min(90svh, 48rem);
  margin: auto;
  padding: 0;
  overflow: auto;
  border: 1px solid var(--line-strong);
  border-radius: 0.85rem;
  background: #050b0f;
  box-shadow: 0 2.5rem 8rem rgba(0, 0, 0, 0.75);
  color: var(--text);
}

.cf-tuner-dialog::backdrop {
  background: rgba(0, 3, 5, 0.76);
  backdrop-filter: blur(7px);
}

.cf-tuner-panel {
  padding: clamp(1rem, 4vw, 1.75rem);
  background:
    linear-gradient(rgba(73, 188, 194, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(73, 188, 194, 0.045) 1px, transparent 1px),
    radial-gradient(circle at 75% 6%, rgba(73, 188, 194, 0.18), transparent 19rem);
  background-size: 2rem 2rem, 2rem 2rem, auto;
}

.cf-tuner-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.cf-tuner-code {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--accent-strong);
}

.cf-tuner-header h2 {
  margin: 0;
  font-size: clamp(1.6rem, 5vw, 2.45rem);
  line-height: 1;
}

.cf-tuner-close {
  width: 2.45rem;
  height: 2.45rem;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  cursor: pointer;
  font-size: 1.65rem;
  line-height: 1;
}

.cf-tuner-close:hover {
  border-color: var(--accent);
  color: var(--text);
}

.cf-tuner-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: end;
  padding: 1.2rem 0 0.8rem;
}

.cf-tuner-instruments {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.cf-tuner-instruments legend,
.cf-tuner-reference > span:first-child,
.cf-tuner-device > span {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.cf-tuner-instruments > div {
  display: flex;
  gap: 0.35rem;
}

.cf-tuner-instruments label {
  position: relative;
}

.cf-tuner-instruments input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.cf-tuner-instruments label span {
  display: block;
  padding: 0.62rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 850;
}

.cf-tuner-instruments input:checked + span {
  border-color: var(--accent-strong);
  background: rgba(73, 188, 194, 0.16);
  color: var(--text);
}

.cf-tuner-instruments input:focus-visible + span {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.cf-tuner-reference {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 750;
}

.cf-tuner-reference > span:last-child {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.cf-tuner-reference input {
  width: 4.6rem;
  padding: 0.56rem;
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  background: rgba(0, 0, 0, 0.3);
  color: var(--text);
}

.cf-tuner-strings {
  display: grid;
  grid-template-columns: repeat(var(--tuner-string-count, 6), minmax(0, 1fr));
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.cf-tuner-strings span {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.45rem 0.2rem;
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  background: rgba(0, 0, 0, 0.2);
  color: var(--muted);
}

.cf-tuner-strings span.is-nearest {
  border-color: var(--accent-strong);
  background: rgba(73, 188, 194, 0.13);
  color: var(--text);
  box-shadow: inset 0 -2px 0 var(--accent);
}

.cf-tuner-strings small {
  color: var(--subtle);
  font-size: 0.55rem;
}

.cf-tuner-strings strong {
  font-size: 0.83rem;
}

.cf-tuner-display {
  padding: 1.1rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.55rem;
  background:
    radial-gradient(circle at 50% 20%, rgba(73, 188, 194, 0.12), transparent 12rem),
    rgba(1, 5, 7, 0.78);
  text-align: center;
}

.cf-tuner-note {
  min-height: 6.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  font-size: clamp(4.6rem, 18vw, 7rem);
  font-weight: 950;
  letter-spacing: -0.08em;
  line-height: 0.8;
  text-shadow: 0 0 2.4rem rgba(73, 188, 194, 0.2);
}

.cf-tuner-note sup {
  align-self: flex-start;
  margin-top: 0.6rem;
  color: var(--accent);
  font-size: 1.2rem;
  letter-spacing: 0;
}

.cf-tuner-display.is-in-tune .cf-tuner-note {
  color: var(--accent-strong);
  text-shadow: 0 0 2.8rem rgba(127, 230, 234, 0.48);
}

.cf-tuner-frequency,
.cf-tuner-cents {
  margin: 0;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.cf-tuner-frequency {
  font-size: 0.78rem;
}

.cf-tuner-scale {
  position: relative;
  height: 3rem;
  margin: 1rem 0 0.15rem;
  border-top: 1px solid var(--line);
}

.cf-tuner-scale > span {
  position: absolute;
  top: 1rem;
  color: var(--subtle);
  font-size: 0.55rem;
  font-weight: 800;
}

.cf-tuner-flat { left: 0; }
.cf-tuner-sharp { right: 0; }

.cf-tuner-tick,
.cf-tuner-center {
  position: absolute;
  top: 0;
  width: 1px;
  height: 0.65rem;
  background: var(--line-strong);
}

.cf-tuner-center {
  left: 50%;
  height: 1.1rem;
  background: var(--accent-strong);
}

.tick-1 { left: 25%; }
.tick-2 { left: 37.5%; }
.tick-3 { left: 62.5%; }
.tick-4 { left: 75%; }

.cf-tuner-scale b {
  position: absolute;
  top: -0.45rem;
  left: var(--tuner-position, 50%);
  width: 0.8rem;
  height: 0.8rem;
  border: 2px solid var(--accent-strong);
  border-radius: 50%;
  background: #050b0f;
  box-shadow: 0 0 1rem rgba(127, 230, 234, 0.6);
  transform: translateX(-50%);
  transition: left 100ms linear;
}

.cf-tuner-display.is-in-tune .cf-tuner-scale b {
  background: var(--accent-strong);
}

.cf-tuner-cents {
  min-height: 1.5rem;
  font-size: 0.88rem;
  font-weight: 800;
}

.cf-tuner-level {
  height: 0.25rem;
  margin-top: 0.8rem;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(127, 230, 234, 0.08);
}

.cf-tuner-level span {
  width: 0;
  height: 100%;
  display: block;
  background: linear-gradient(90deg, var(--accent), var(--accent-strong));
  box-shadow: 0 0 1rem rgba(127, 230, 234, 0.55);
  transition: width 80ms linear;
}

.cf-tuner-device {
  display: grid;
  grid-template-columns: 8rem minmax(0, 1fr);
  gap: 0.8rem;
  align-items: center;
  margin-top: 0.9rem;
}

.cf-tuner-device > span {
  margin: 0;
}

.cf-tuner-device select {
  width: 100%;
  min-width: 0;
  padding: 0.65rem;
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  background: #071014;
  color: var(--text);
}

.cf-tuner-status {
  min-height: 2.7rem;
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.cf-tuner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.cf-tuner-privacy {
  margin: 0.85rem 0 0;
  padding-top: 0.75rem;
  border-top: 1px solid var(--line);
  color: var(--subtle);
  font-size: 0.68rem;
}

@keyframes cf-tuner-pulse {
  from { opacity: 0.5; transform: scale(0.78); }
  to { opacity: 1; transform: scale(1); }
}

@media (max-width: 620px) {
  .cf-tuner-dock {
    right: 0.75rem;
    bottom: 0.75rem;
    min-width: 8.6rem;
    padding: 0.62rem 0.7rem;
  }

  .cf-tuner-dialog {
    width: calc(100% - 1rem);
    max-height: calc(100svh - 1rem);
  }

  .cf-tuner-controls {
    grid-template-columns: 1fr;
  }

  .cf-tuner-reference {
    max-width: 8rem;
  }

  .cf-tuner-device {
    grid-template-columns: 1fr;
  }

  .cf-tuner-actions .button {
    flex: 1 1 10rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cf-tuner-dock,
  .cf-tuner-scale b,
  .cf-tuner-level span {
    transition: none;
  }

  .is-listening .cf-tuner-dock-signal,
  .is-connecting .cf-tuner-dock-signal {
    animation: none;
  }
}