.beltlab {
  --lab-bg: #fff7ea;
  --lab-panel: #fff;
  --lab-field: #fff1dc;
  --lab-ink: #21170e;
  --lab-soft: #7a654e;
  --lab-line: #ead5b8;
  --lab-belt: #2a2118;
  --lab-mark: #f07920;
  --lab-good: #4f9b55;
  --lab-bad: #d95445;
  --lab-glow: rgba(240, 121, 32, .18);

  display: grid;
  gap: .75rem;
  width: 100%;
  padding: clamp(.75rem, 2vw, 1rem);
  border: 1px solid var(--lab-line);
  border-radius: 8px;
  background:
    radial-gradient(circle at 14% 0, var(--lab-glow), transparent 34%),
    var(--lab-bg);
  color: var(--lab-ink);
  box-shadow: 0 18px 45px rgba(108, 74, 34, .1);
}

.theme-dark .beltlab {
  --lab-bg: #17120d;
  --lab-panel: #1e1711;
  --lab-field: #120e0a;
  --lab-ink: #fff4e5;
  --lab-soft: #cbb79c;
  --lab-line: #4a3828;
  --lab-belt: #f7ead7;
  --lab-mark: #ff9636;
  --lab-good: #8ac06b;
  --lab-bad: #ff7565;
  --lab-glow: rgba(255, 150, 54, .16);

  box-shadow: none;
}

.beltlab-headline,
.beltlab-main,
.beltlab-chipset,
.beltlab-units,
.beltlab-mode {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  align-items: center;
}

.beltlab-headline {
  justify-content: space-between;
}

.beltlab-main {
  align-items: stretch;
}

.beltlab-left,
.beltlab-controls {
  min-width: 0;
}

.beltlab-left {
  flex: 1 1 34rem;
  display: grid;
  gap: .65rem;
}

.beltlab-controls {
  flex: 1 1 18rem;
  display: grid;
  gap: .58rem;
  align-content: start;
}

.beltlab button {
  border: 1px solid var(--lab-line);
  border-radius: 8px;
  background: var(--lab-panel);
  color: var(--lab-ink);
  padding: .48rem .66rem;
  font-weight: 850;
  cursor: pointer;
}

.beltlab button.active {
  border-color: var(--lab-mark);
  background: var(--lab-mark);
  color: #211309;
}

.beltlab-units button {
  font-size: .78rem;
}

.beltlab-result {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .1rem .75rem;
  align-items: end;
  padding: .62rem .72rem;
  border: 1px solid var(--lab-line);
  border-radius: 8px;
  background: var(--lab-panel);
  animation: beltlab-enter .36s ease both;
}

.beltlab-result > span,
.beltlab-metrics span,
.beltlab-controls span {
  display: block;
  color: var(--lab-soft);
  font-size: .68rem;
  font-weight: 950;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.beltlab-result > span {
  grid-column: 1 / -1;
}

.beltlab-result strong {
  display: flex;
  align-items: baseline;
  gap: .28rem;
  color: var(--lab-mark);
  font-size: clamp(3rem, 9vw, 5.25rem);
  font-weight: 950;
  line-height: .78;
  transition: color .2s ease, transform .2s ease;
}

.beltlab-result strong small {
  color: var(--lab-soft);
  font-size: 1rem;
}

.beltlab-result[data-state="ok"] strong {
  color: var(--lab-good);
}

.beltlab-result[data-state="high"] strong {
  color: var(--lab-bad);
}

.beltlab-result p {
  margin: 0;
  color: var(--lab-soft);
  font-size: .86rem;
  font-weight: 750;
}

.beltlab-diagram {
  position: relative;
  min-height: 9.4rem;
  overflow: hidden;
  border: 1px solid var(--lab-line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--lab-field) 76%, transparent), transparent),
    var(--lab-panel);
  animation: beltlab-enter .42s .04s ease both;
}

.beltlab-wheel {
  position: absolute;
  top: 50%;
  width: 3.2rem;
  height: 3.2rem;
  border: .35rem solid var(--lab-belt);
  border-radius: 50%;
  transform: translateY(-50%);
}

.beltlab-wheel.left {
  left: .9rem;
}

.beltlab-wheel.right {
  right: .9rem;
}

.beltlab-belt {
  position: absolute;
  left: 4.75rem;
  right: 4.75rem;
  height: .38rem;
  border-radius: 99px;
  background: var(--lab-belt);
}

.beltlab-belt.top {
  top: calc(50% - 1.35rem);
  opacity: .28;
}

.beltlab-belt.measured {
  top: calc(50% + var(--sag, 8px));
  box-shadow: 0 .26rem 0 color-mix(in srgb, var(--lab-mark) 80%, transparent);
  transition: top .24s ease;
  animation: beltlab-breathe 1.7s ease-in-out infinite;
}

.beltlab-note {
  position: absolute;
  top: 50%;
  left: 50%;
  display: flex;
  align-items: baseline;
  gap: .18rem;
  padding: .5rem .62rem;
  border: 1px solid var(--lab-line);
  border-radius: 8px;
  background: var(--lab-panel);
  transform: translate(-50%, -50%);
  box-shadow: 0 .45rem 1rem rgba(0, 0, 0, .08);
}

.beltlab-note b {
  color: var(--lab-mark);
  font-size: 1.35rem;
  line-height: 1;
}

.beltlab-note span,
.beltlab-span-tag {
  color: var(--lab-soft);
  font-size: .72rem;
  font-weight: 850;
}

.beltlab-span-tag {
  position: absolute;
  right: .7rem;
  bottom: .52rem;
}

.beltlab-scale {
  position: relative;
  height: .5rem;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--lab-mark), var(--lab-good) 55%, var(--lab-bad));
  overflow: visible;
}

.beltlab-scale i {
  position: absolute;
  top: -.3rem;
  width: .16rem;
  height: 1.1rem;
  border-radius: 99px;
  background: var(--lab-ink);
  transform: translateX(-50%);
  transition: left .24s cubic-bezier(.2, .8, .2, 1);
}

.beltlab-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .42rem;
}

.beltlab-metrics div,
.beltlab-slider,
.beltlab-minirow label,
.beltlab-mode {
  border: 1px solid var(--lab-line);
  border-radius: 8px;
  background: var(--lab-field);
}

.beltlab-metrics div {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .42rem;
  padding: .48rem .55rem;
}

.beltlab-metrics b {
  display: flex;
  align-items: baseline;
  gap: .14rem;
  margin-top: 0;
  color: var(--lab-ink);
  font-size: .98rem;
  font-weight: 950;
  text-align: right;
}

.beltlab-metrics small {
  color: var(--lab-soft);
  font-size: .66rem;
}

.beltlab-mode {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .3rem;
  padding: .3rem;
}

.beltlab-slider,
.beltlab-minirow label {
  display: grid;
  gap: .35rem;
  padding: .58rem;
}

.beltlab-slider input[type="range"] {
  width: 100%;
  accent-color: var(--lab-mark);
}

.beltlab-slider output {
  display: flex;
  align-items: baseline;
  gap: .32rem;
}

.beltlab-minirow {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .5rem;
}

.beltlab-minirow label {
  position: relative;
}

.beltlab input[type="number"] {
  width: 100%;
  min-width: 0;
  border: 0;
  appearance: textfield;
  background: transparent;
  color: var(--lab-ink);
  font-size: 1.35rem;
  font-weight: 950;
  line-height: 1;
  outline: 0;
}

.beltlab input::-webkit-outer-spin-button,
.beltlab input::-webkit-inner-spin-button {
  margin: 0;
  appearance: none;
}

.beltlab b {
  color: var(--lab-mark);
}

.beltlab-minirow label b {
  position: absolute;
  right: .58rem;
  bottom: .62rem;
  color: var(--lab-soft);
  font-size: .72rem;
}

.beltlab-minirow label.quiet {
  opacity: .45;
}

.beltlab-controls p {
  margin: 0;
  color: var(--lab-soft);
  font-size: .8rem;
  font-weight: 750;
}

.beltlab button.beltlab-copy {
  width: 100%;
  background: var(--lab-ink);
  color: var(--lab-bg);
  transition: transform .16s ease, box-shadow .16s ease;
}

.beltlab-copy:hover {
  box-shadow: 0 10px 24px color-mix(in srgb, var(--lab-mark) 18%, transparent);
}

.beltlab[data-state="ok"] {
  --lab-glow: color-mix(in srgb, var(--lab-good) 22%, transparent);
}

.beltlab[data-state="high"] {
  --lab-glow: color-mix(in srgb, var(--lab-bad) 20%, transparent);
}

@keyframes beltlab-enter {
  from {
    opacity: .35;
    transform: translateY(5px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes beltlab-breathe {
  0%,
  100% {
    filter: brightness(1);
  }

  50% {
    filter: brightness(1.18);
  }
}

@media (max-width: 760px) {
  .beltlab-result,
  .beltlab-minirow {
    grid-template-columns: 1fr;
  }

  .beltlab-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .beltlab-belt {
    left: 4.25rem;
    right: 4.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .beltlab *,
  .beltlab *::before,
  .beltlab *::after {
    animation-duration: .001ms;
    transition-duration: .001ms;
  }
}