.audio-delay-distance-calculator-card {
  --n-bg: #fff;
  --n-text: #0f172a;
  --n-muted: #475569;
  --n-border: #cbd5e1;
  --n-brand: #0284c7;
  --n-brand-hover: #0369a1;
  --n-brand-light: #f0f9ff;
  --n-card-bg: #f8fafc;
  --n-input-bg: #fff;
  --n-select-menu-bg: #fff;
  --n-stage-radial-start: #f0f9ff;
  --n-stage-radial-end: #e0f2fe;
  --n-stage-stroke: #bae6fd;
  --n-stage-axis: #0284c7;
  --n-success: #16a34a;
  --n-warning: #d97706;
  --n-error: #dc2626;

  background-color: var(--n-bg);
  color: var(--n-text);
  border: 1px solid var(--n-border);
  border-radius: 20px;
  padding: 28px;
  max-width: 1080px;
  margin: 0 auto;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.theme-dark .audio-delay-distance-calculator-card {
  --n-bg: #0b0f19;
  --n-text: #f8fafc;
  --n-muted: #94a3b8;
  --n-border: rgba(255, 255, 255, 0.12);
  --n-brand: #38bdf8;
  --n-brand-hover: #0ea5e9;
  --n-brand-light: rgba(56, 189, 248, 0.15);
  --n-card-bg: #131b2e;
  --n-input-bg: rgba(0, 0, 0, 0.3);
  --n-select-menu-bg: #111827;
  --n-stage-radial-start: #1e1b4b;
  --n-stage-radial-end: #090d16;
  --n-stage-stroke: rgba(255, 255, 255, 0.1);
  --n-stage-axis: #38bdf8;
  --n-success: #10b981;
  --n-warning: #f59e0b;
  --n-error: #f43f5e;

  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.audio-delay-distance-calculator-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--n-border);
}

.audio-delay-distance-calculator-brand-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.audio-delay-distance-calculator-badge-tag {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--n-brand);
  background-color: var(--n-brand-light);
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--n-border);
}

.audio-delay-distance-calculator-unit-master {
  display: flex;
  gap: 4px;
  background-color: var(--n-card-bg);
  border: 1px solid var(--n-border);
  border-radius: 10px;
  padding: 4px;
}

.audio-delay-distance-calculator-master-btn {
  background: transparent;
  border: none;
  color: var(--n-muted);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.25s ease;
}

.audio-delay-distance-calculator-btn-active {
  background-color: var(--n-brand);
  color: #fff;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.3);
}

.audio-delay-distance-calculator-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

@media (min-width: 820px) {
  .audio-delay-distance-calculator-layout {
    grid-template-columns: 1fr 1fr;
  }
}

.audio-delay-distance-calculator-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.audio-delay-distance-calculator-control-card {
  background-color: var(--n-card-bg);
  border: 1px solid var(--n-border);
  border-radius: 16px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.audio-delay-distance-calculator-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.audio-delay-distance-calculator-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.audio-delay-distance-calculator-label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--n-text);
}

.audio-delay-distance-calculator-val-badge {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--n-brand);
  background-color: var(--n-brand-light);
  padding: 3px 10px;
  border-radius: 6px;
  border: 1px solid var(--n-border);
}

.audio-delay-distance-calculator-slider-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.audio-delay-distance-calculator-slider {
  flex: 1;
  accent-color: var(--n-brand);
  height: 6px;
  border-radius: 4px;
  cursor: pointer;
}

.audio-delay-distance-calculator-num-input {
  width: 72px;
  background-color: var(--n-input-bg);
  border: 1px solid var(--n-border);
  color: var(--n-text);
  padding: 6px 10px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 700;
  text-align: center;
}

.audio-delay-distance-calculator-custom-select {
  position: relative;
  width: 100%;
}

.audio-delay-distance-calculator-custom-select-trigger {
  background-color: var(--n-input-bg);
  border: 1px solid var(--n-border);
  color: var(--n-text);
  padding: 12px 16px;
  border-radius: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
}

.audio-delay-distance-calculator-chevron {
  width: 18px;
  height: 18px;
  fill: var(--n-muted);
}

.audio-delay-distance-calculator-custom-select-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--n-select-menu-bg);
  border: 1px solid var(--n-border);
  border-radius: 10px;
  margin-top: 6px;
  z-index: 20;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  overflow: hidden;
}

.audio-delay-distance-calculator-open {
  display: block;
}

.audio-delay-distance-calculator-custom-select-option {
  padding: 12px 16px;
  cursor: pointer;
  color: var(--n-text);
  font-size: 0.9rem;
  transition: background-color 0.2s ease;
}

.audio-delay-distance-calculator-custom-select-option:hover {
  background-color: var(--n-brand-light);
}

.audio-delay-distance-calculator-selected {
  font-weight: 700;
  color: var(--n-brand);
}

.audio-delay-distance-calculator-presets-box {
  background-color: var(--n-card-bg);
  border: 1px solid var(--n-border);
  border-radius: 16px;
  padding: 16px;
}

.audio-delay-distance-calculator-presets-title {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--n-muted);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.audio-delay-distance-calculator-presets-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.audio-delay-distance-calculator-preset-chip {
  background-color: var(--n-bg);
  border: 1px solid var(--n-border);
  color: var(--n-text);
  padding: 10px 12px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.audio-delay-distance-calculator-preset-chip:hover {
  border-color: var(--n-brand);
  background-color: var(--n-brand-light);
  transform: translateY(-2px);
}

.audio-delay-distance-calculator-preset-name {
  font-size: 0.8rem;
  font-weight: 700;
  text-align: left;
  line-height: 1.3;
}

.audio-delay-distance-calculator-stage-card {
  background-color: var(--n-card-bg);
  border: 1px solid var(--n-border);
  border-radius: 16px;
  padding: 12px;
  overflow: hidden;
}

.audio-delay-distance-calculator-svg {
  width: 100%;
  height: 260px;
}

.audio-delay-distance-calculator-results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.audio-delay-distance-calculator-stat-card {
  background-color: var(--n-card-bg);
  border: 1px solid var(--n-border);
  border-radius: 16px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
}

.audio-delay-distance-calculator-stat-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--n-muted);
}

.audio-delay-distance-calculator-stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--n-brand);
  letter-spacing: -0.5px;
}

.audio-delay-distance-calculator-status-box {
  background-color: var(--n-card-bg);
  border: 1px solid var(--n-border);
  border-radius: 16px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.audio-delay-distance-calculator-status-head {
  display: flex;
  align-items: center;
}

.audio-delay-distance-calculator-badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.audio-delay-distance-calculator-badge-success {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--n-success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.audio-delay-distance-calculator-badge-info {
  background-color: rgba(2, 132, 199, 0.15);
  color: var(--n-brand);
  border: 1px solid rgba(2, 132, 199, 0.3);
}

.audio-delay-distance-calculator-badge-warning {
  background-color: rgba(217, 119, 6, 0.15);
  color: var(--n-warning);
  border: 1px solid rgba(217, 119, 6, 0.3);
}

.audio-delay-distance-calculator-badge-error {
  background-color: rgba(220, 38, 38, 0.15);
  color: var(--n-error);
  border: 1px solid rgba(220, 38, 38, 0.3);
}

.audio-delay-distance-calculator-advice {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--n-text);
  margin: 0;
  font-weight: 500;
}