:root {
  --n-ink: #18221e;
  --n-muted: #66756e;
  --n-paper: #f7f6f0;
  --n-surface: #fff;
  --n-surface-soft: #eef1e9;
  --n-line: #d6ded5;
  --n-accent: #d85e31;
  --n-accent-strong: #a84321;
  --n-accent-soft: #f4d4c7;
  --n-teal: #27736d;
  --n-teal-soft: #cbe3dc;
  --n-shadow: 0 18px 50px rgba(25, 43, 33, 0.1);
}

.theme-dark {
  --n-ink: #f7f3ea;
  --n-muted: #b9b3ad;
  --n-paper: #18191f;
  --n-surface: #23242b;
  --n-surface-soft: #2b2a33;
  --n-line: #474650;
  --n-accent: #ff8a5c;
  --n-accent-strong: #ffc0a3;
  --n-accent-soft: #4a2d2a;
  --n-teal: #7ec7d0;
  --n-teal-soft: #293f47;
  --n-shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
  --n-orbit-label-shadow: 0 1px 3px rgba(0, 0, 0, 0.62);
}

.theme-dark .calories-burned-calculator {
  --n-ink: #f7f3ea;
  --n-muted: #b9b3ad;
  --n-paper: #18191f;
  --n-surface: #23242b;
  --n-surface-soft: #2b2a33;
  --n-line: #474650;
  --n-accent: #ff8a5c;
  --n-accent-strong: #ffc0a3;
  --n-accent-soft: #4a2d2a;
  --n-teal: #7ec7d0;
  --n-teal-soft: #293f47;
  --n-shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
  --n-orbit-label-shadow: 0 1px 3px rgba(0, 0, 0, 0.62);
}

.calories-burned-calculator {
  color: var(--n-ink);
  background: var(--n-paper);
  border: 1px solid var(--n-line);
  box-shadow: var(--n-shadow);
  overflow: hidden;
}

.calories-tool-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.78fr) minmax(360px, 1.22fr);
  min-height: 650px;
}

.calories-control-panel {
  display: grid;
  align-content: start;
  gap: 1.25rem;
  padding: clamp(1.5rem, 4vw, 3rem);
  background: var(--n-surface-soft);
  border-right: 1px solid var(--n-line);
}

.calories-panel-heading,
.calories-result-heading {
  display: grid;
  gap: 0.45rem;
}

.calories-kicker {
  margin: 0;
  color: var(--n-accent-strong);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.calories-flow {
  max-width: 33rem;
  margin: 0;
  color: var(--n-muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.calories-field,
.calories-unit-block {
  display: grid;
  gap: 0.55rem;
}

.calories-field-wide {
  grid-column: 1 / -1;
}

.calories-label {
  color: var(--n-ink);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.calories-select {
  position: relative;
}

.calories-select-trigger,
.calories-number,
.calories-intensity-button,
.calories-unit-toggle button,
.calories-reset {
  font: inherit;
}

.calories-select-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 3.1rem;
  padding: 0.8rem 1rem;
  color: var(--n-ink);
  background: var(--n-surface);
  border: 1px solid var(--n-line);
  cursor: pointer;
  text-align: left;
}

.calories-select-mark {
  width: 0.55rem;
  height: 0.55rem;
  border-right: 2px solid var(--n-accent-strong);
  border-bottom: 2px solid var(--n-accent-strong);
  transform: rotate(45deg) translateY(-2px);
}

.calories-select-menu {
  position: absolute;
  z-index: 5;
  top: calc(100% + 0.35rem);
  width: 100%;
  padding: 0.35rem;
  background: var(--n-surface);
  border: 1px solid var(--n-line);
  box-shadow: var(--n-shadow);
}

.calories-select-options {
  display: grid;
  max-height: 17rem;
  overflow: auto;
}

.calories-activity-option {
  padding: 0.75rem 0.8rem;
  color: var(--n-ink);
  background: transparent;
  border: 0;
  cursor: pointer;
  text-align: left;
}

.calories-activity-option:hover,
.calories-activity-option.is-selected {
  color: var(--n-accent-strong);
  background: var(--n-accent-soft);
}

.calories-intensity-row,
.calories-unit-toggle {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.4rem;
}

.calories-intensity-button,
.calories-unit-toggle button {
  min-height: 2.65rem;
  padding: 0.55rem 0.4rem;
  color: var(--n-muted);
  background: var(--n-surface);
  border: 1px solid var(--n-line);
  cursor: pointer;
  font-size: 0.76rem;
  font-weight: 700;
}

.calories-intensity-button.is-active,
.calories-unit-toggle button.is-active {
  color: var(--n-surface);
  background: var(--n-teal);
  border-color: var(--n-teal);
}

.calories-number-wrap {
  position: relative;
}

.calories-number {
  width: 100%;
  min-height: 3rem;
  padding: 0.65rem 3.25rem 0.65rem 0.9rem;
  color: var(--n-ink);
  background: var(--n-surface);
  border: 1px solid var(--n-line);
  font-size: 1rem;
  font-weight: 750;
}

.calories-number-unit {
  position: absolute;
  top: 50%;
  right: 0.9rem;
  color: var(--n-muted);
  font-size: 0.78rem;
  font-weight: 800;
  transform: translateY(-50%);
}

.calories-range {
  width: 100%;
  accent-color: var(--n-accent);
  cursor: pointer;
}

.calories-hint,
.calories-method-note,
.calories-estimate-notice {
  margin: 0;
  color: var(--n-muted);
  font-size: 0.75rem;
  line-height: 1.5;
}

.calories-unit-block {
  padding-top: 0.55rem;
}

.calories-unit-toggle {
  grid-template-columns: repeat(2, 1fr);
}

.calories-reset {
  justify-self: start;
  padding: 0.3rem 0;
  color: var(--n-accent-strong);
  background: transparent;
  border: 0;
  border-bottom: 1px solid currentcolor;
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 800;
}

.calories-result-panel {
  display: grid;
  align-content: start;
  gap: 1.25rem;
  padding: clamp(1.5rem, 5vw, 4rem);
  background: var(--n-surface);
}

.calories-result-heading h2 {
  max-width: 17rem;
  margin: 0;
  font-size: clamp(1.65rem, 4vw, 2.7rem);
  line-height: 0.98;
}

.calories-orbit {
  position: relative;
  display: grid;
  place-items: center;
  width: min(100%, 300px);
  aspect-ratio: 1;
  margin: 0 auto;
}

.calories-orbit svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.calories-orbit-track,
.calories-orbit-arc {
  fill: none;
  stroke-width: 7;
}

.calories-orbit-track {
  stroke: var(--n-surface-soft);
}

.calories-orbit-arc {
  stroke: var(--n-accent);
  stroke-dasharray: 628;
  stroke-dashoffset: 280;
  transform: rotate(-90deg);
  transform-origin: center;
  transition: stroke-dashoffset 350ms ease;
}

.calories-orbit-core {
  fill: var(--n-accent-soft);
}

.calories-energy-flame {
  fill: var(--n-accent);
  transform-origin: 120px 120px;
  transition: transform 350ms ease;
}

.calories-orbit-dot {
  fill: var(--n-teal);
}

.calories-orbit-dot-alt {
  fill: var(--n-accent-strong);
}

.calories-orbit-copy {
  position: absolute;
  display: grid;
  place-items: center;
  line-height: 1;
}

.calories-orbit-copy strong {
  font-size: clamp(2.8rem, 7vw, 4.5rem);
  letter-spacing: -0.08em;
}

.calories-orbit-copy span {
  margin-top: 0.45rem;
  color: var(--n-muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.theme-dark .calories-orbit-copy span {
  color: var(--n-ink);
  text-shadow: var(--n-orbit-label-shadow);
}

.calories-result-stats,
.calories-metric-strip {
  display: grid;
  grid-template-columns: 1.25fr 1fr 1fr;
  gap: 0.7rem;
}

.calories-stat,
.calories-metric-strip > div {
  display: grid;
  gap: 0.3rem;
  min-width: 0;
  padding-top: 0.8rem;
  border-top: 2px solid var(--n-line);
}

.calories-stat-primary {
  border-color: var(--n-accent);
}

.calories-stat span,
.calories-metric-strip span {
  color: var(--n-muted);
  font-size: 0.7rem;
  line-height: 1.35;
}

.calories-stat strong,
.calories-metric-strip strong {
  font-size: 1rem;
  line-height: 1.2;
}

.calories-metric-strip {
  grid-template-columns: repeat(3, 1fr);
  padding: 1rem 0;
  border-block: 1px solid var(--n-line);
}

.calories-metric-strip > div {
  padding: 0 0.7rem;
  border-top: 0;
  border-left: 1px solid var(--n-line);
}

.calories-metric-strip > div:first-child {
  padding-left: 0;
  border-left: 0;
}

.calories-method-note {
  max-width: 42rem;
}

.calories-estimate-notice {
  padding: 0.85rem 1rem;
  color: var(--n-accent-strong);
  background: var(--n-accent-soft);
  border-left: 3px solid var(--n-accent);
}

[data-calories-tool] button:focus-visible,
[data-calories-tool] input:focus-visible {
  outline: 3px solid var(--n-accent);
  outline-offset: 3px;
}

@media (max-width: 800px) {
  .calories-tool-grid {
    grid-template-columns: 1fr;
  }

  .calories-control-panel {
    border-right: 0;
    border-bottom: 1px solid var(--n-line);
  }
}

@media (max-width: 520px) {
  .calories-control-panel,
  .calories-result-panel {
    padding: 1.25rem;
  }

  .calories-result-stats {
    grid-template-columns: 1fr 1fr;
  }

  .calories-stat-primary {
    grid-column: 1 / -1;
  }

  .calories-metric-strip {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .calories-metric-strip > div,
  .calories-metric-strip > div:first-child {
    padding: 0;
    border-left: 0;
  }
}