:root {
  --n-ink: #1d1b20;
  --n-paper: #f7f0e2;
  --n-panel: #fffaf0;
  --n-line: #d8cbb8;
  --n-muted: #716a62;
  --n-accent: #be5d3c;
  --n-accent-soft: #f0c9a9;
  --n-shadow: #6d422e;
  --n-wire: #6e7075;
  --n-black: #111;
  --n-brown: #7b432d;
  --n-red: #d9473f;
  --n-orange: #ef8b35;
  --n-yellow: #e7c84a;
  --n-green: #58a86a;
  --n-blue: #4c82c4;
  --n-violet: #8664b6;
  --n-gray: #9a9da3;
  --n-white: #f4efe1;
  --n-gold: #c79b45;
  --n-silver: #b7bdc8;
}

.theme-dark {
  --n-ink: #f7f0e2;
  --n-paper: #211d1b;
  --n-panel: #2d2824;
  --n-line: #51463d;
  --n-muted: #b8aaa0;
  --n-accent: #e4865f;
  --n-accent-soft: #5b392d;
  --n-shadow: #0d0c0c;
  --n-wire: #aeb0b5;
}

.rcc-root {
  background: var(--n-paper);
  border: 1px solid var(--n-line);
  border-radius: 2rem;
  color: var(--n-ink);
  overflow: hidden;
  box-shadow: 0 1.5rem 3rem color-mix(in srgb, var(--n-shadow) 12%, transparent);
}

.rcc-lab {
  padding: clamp(1rem, 3vw, 2.5rem);
  background: radial-gradient(circle at 50% 16%, color-mix(in srgb, var(--n-accent-soft) 38%, transparent), transparent 32rem);
}

.rcc-header,
.rcc-control-head,
.rcc-readout-main,
.rcc-readout-grid,
.rcc-band-list,
.rcc-mode-tabs,
.rcc-tolerance {
  align-items: center;
  display: flex;
}

.rcc-header {
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.rcc-kicker,
.rcc-label,
.rcc-control-head > span,
.rcc-tolerance > span,
.rcc-number-field > span,
.rcc-readout span {
  color: var(--n-muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.rcc-hint,
.rcc-note,
.rcc-number-field small {
  color: var(--n-muted);
  font-size: 0.86rem;
  line-height: 1.5;
}

.rcc-hint {
  margin: 0.35rem 0 0;
  max-width: 38rem;
}

.rcc-status {
  border: 1px solid var(--n-accent);
  border-radius: 999px;
  color: var(--n-accent);
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.55rem 0.8rem;
  text-transform: uppercase;
  white-space: nowrap;
}

.rcc-status[data-status="invalid"] {
  border-color: var(--n-red);
  color: var(--n-red);
}

.rcc-status[data-status="check"] {
  border-color: var(--n-gold);
  color: var(--n-gold);
}

.rcc-mode-tabs,
.rcc-pills {
  gap: 0.4rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.rcc-mode-tabs {
  border-bottom: 1px solid var(--n-line);
  margin-bottom: 1.25rem;
}

.rcc-mode-tabs button,
.rcc-pills button,
.rcc-band-select {
  appearance: none;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--n-muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 750;
  padding: 0.65rem 0.85rem;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.rcc-mode-tabs button.active,
.rcc-mode-tabs button:hover,
.rcc-pills button.active,
.rcc-pills button:hover,
.rcc-band-select.active,
.rcc-band-select:hover {
  background: var(--n-accent);
  border-color: var(--n-accent);
  color: #fff;
}

.rcc-mode-tabs button:focus-visible,
.rcc-pills button:focus-visible,
.rcc-band-select:focus-visible,
.color-chip:focus-visible,
.rcc-number-field input:focus-visible,
.resistor-band-svg:focus-visible {
  outline: 3px solid var(--n-accent-soft);
  outline-offset: 3px;
}

.rcc-stage {
  min-height: 16rem;
  position: relative;
}

.resistor-scene {
  align-items: center;
  display: flex;
  justify-content: center;
  min-height: 16rem;
  padding: 1rem;
  position: relative;
}

.resistor-svg {
  display: block;
  height: auto;
  max-width: 48rem;
  overflow: visible;
  width: 100%;
}

.resistor-wire-svg {
  stroke: var(--n-wire);
  stroke-linecap: round;
  stroke-width: 8;
}

.resistor-body-svg {
  fill: var(--n-panel);
  stroke: color-mix(in srgb, var(--n-accent) 35%, var(--n-panel));
  stroke-width: 18;
}

.resistor-band-svg {
  cursor: pointer;
  outline: none;
  stroke: color-mix(in srgb, #111 18%, transparent);
  stroke-width: 2;
  transition: filter 160ms ease, stroke 160ms ease, stroke-width 160ms ease;
  vector-effect: non-scaling-stroke;
}

.resistor-band-svg:hover,
.resistor-band-svg:focus,
.resistor-band-svg.active {
  filter: brightness(1.16) drop-shadow(0 0 8px color-mix(in srgb, var(--n-accent) 72%, transparent));
}

.resistor-band-svg.active {
  stroke: var(--n-accent);
  stroke-width: 5;
}

.resistor-scene-caption {
  bottom: 0.5rem;
  display: grid;
  gap: 0.2rem;
  left: 50%;
  position: absolute;
  text-align: center;
  transform: translateX(-50%);
}

.resistor-scene-caption span {
  color: var(--n-muted);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.resistor-scene-caption strong {
  color: var(--n-accent);
  font-size: clamp(1.1rem, 3vw, 1.6rem);
}

.rcc-controls {
  background: color-mix(in srgb, var(--n-panel) 88%, transparent);
  border: 1px solid var(--n-line);
  border-radius: 1.25rem;
  padding: 1rem;
}

.rcc-control-head {
  gap: 1rem;
  justify-content: space-between;
}

.rcc-band-list {
  gap: 0.5rem;
  margin: 1.1rem 0;
  overflow-x: auto;
}

.rcc-band-select {
  background: var(--n-paper);
  border-color: var(--n-line);
  flex: 1 0 auto;
  min-width: 5rem;
}

.rcc-band-select span {
  white-space: nowrap;
}

.rcc-palette-wrap {
  border-top: 1px solid var(--n-line);
  padding-top: 1rem;
}

.rcc-palette {
  display: grid;
  gap: 0.5rem;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  margin-top: 0.65rem;
}

.color-chip {
  align-items: center;
  background: transparent;
  border: 1px solid var(--n-line);
  border-radius: 0.8rem;
  color: var(--n-ink);
  cursor: grab;
  display: flex;
  flex-direction: column;
  font: inherit;
  gap: 0.35rem;
  min-width: 0;
  padding: 0.55rem 0.25rem;
  user-select: none;
}

.color-chip:disabled {
  cursor: not-allowed;
  filter: saturate(0.25);
  opacity: 0.35;
}

.color-chip:active {
  cursor: grabbing;
}

.color-chip.active {
  background: color-mix(in srgb, var(--n-accent-soft) 50%, transparent);
  border-color: var(--n-accent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--n-accent) 24%, transparent);
}

.color-chip span {
  background: var(--chip-color);
  border: 1px solid color-mix(in srgb, var(--n-ink) 18%, transparent);
  border-radius: 50%;
  height: 1.45rem;
  width: 1.45rem;
}

.color-chip strong {
  font-size: 0.65rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  width: 100%;
}

.color-chip-black { --chip-color: var(--n-black); }
.color-chip-brown { --chip-color: var(--n-brown); }
.color-chip-red { --chip-color: var(--n-red); }
.color-chip-orange { --chip-color: var(--n-orange); }
.color-chip-yellow { --chip-color: var(--n-yellow); }
.color-chip-green { --chip-color: var(--n-green); }
.color-chip-blue { --chip-color: var(--n-blue); }
.color-chip-violet { --chip-color: var(--n-violet); }
.color-chip-gray { --chip-color: var(--n-gray); }
.color-chip-white { --chip-color: var(--n-white); }
.color-chip-gold { --chip-color: var(--n-gold); }
.color-chip-silver { --chip-color: var(--n-silver); }

.rcc-mode-panel {
  display: none;
  gap: 1rem;
  margin-top: 1rem;
  padding-top: 1rem;
}

.rcc-root[data-mode="reverse"] [data-panel-mode="reverse"],
.rcc-root[data-mode="smd"] [data-panel-mode="smd"] {
  display: grid;
}

.rcc-number-field {
  display: grid;
  gap: 0.45rem;
  max-width: 24rem;
}

.rcc-number-field input {
  background: var(--n-paper);
  border: 1px solid var(--n-line);
  border-radius: 0.75rem;
  color: var(--n-ink);
  font: inherit;
  font-size: 1.25rem;
  padding: 0.75rem;
}

.rcc-number-field small {
  font-size: 0.75rem;
}

.rcc-tolerance {
  flex-wrap: wrap;
  gap: 0.7rem;
}

.rcc-readout {
  border-top: 1px solid var(--n-line);
  margin-top: 1.5rem;
  padding-top: 1.5rem;
}

.rcc-readout-main {
  align-items: baseline;
  gap: 0.8rem;
  justify-content: space-between;
}

.rcc-readout-main strong {
  color: var(--n-accent);
  font-size: clamp(2rem, 7vw, 4.5rem);
  letter-spacing: -0.06em;
  line-height: 1;
}

.rcc-readout-grid {
  align-items: stretch;
  gap: 0.6rem;
  margin-top: 1.25rem;
}

.rcc-readout-grid > div {
  background: color-mix(in srgb, var(--n-accent-soft) 34%, transparent);
  border-radius: 0.85rem;
  display: grid;
  flex: 1;
  gap: 0.35rem;
  padding: 0.8rem;
}

.rcc-readout-grid strong {
  font-size: 0.9rem;
}

.rcc-note {
  border-left: 3px solid var(--n-accent);
  margin: 1.25rem 0 0;
  padding-left: 0.8rem;
}

@media (max-width: 700px) {
  .rcc-control-head,
  .rcc-readout-main {
    align-items: flex-start;
    flex-direction: column;
  }

  .rcc-palette {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .rcc-readout-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}