.bro-root {
  --bro-bg: #f6f8f4;
  --bro-panel: #fff;
  --bro-ink: #18211d;
  --bro-muted: #64726a;
  --bro-border: #d4ddd6;
  --bro-field: #edf3ef;
  --bro-accent: #0f766e;
  --bro-safe: #14945f;
  --bro-warn: #c88719;
  --bro-danger: #d7472f;

  color: var(--bro-ink);
}

.theme-dark .bro-root {
  --bro-bg: #0d1413;
  --bro-panel: #151d1b;
  --bro-ink: #eff7f0;
  --bro-muted: #a8b8ae;
  --bro-border: #2e403b;
  --bro-field: #202b28;
  --bro-accent: #35c7b8;
  --bro-safe: #39d487;
  --bro-warn: #f4ba4d;
  --bro-danger: #ff765f;
}

.bro-shell {
  display: grid;
  grid-template-columns: minmax(16rem, 0.78fr) minmax(0, 1.22fr);
  gap: 0.8rem;
  width: 100%;
  padding: clamp(0.65rem, 2vw, 1rem);
  border: 1px solid var(--bro-border);
  border-radius: 8px;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--bro-accent), transparent 88%) 1px, transparent 1px),
    linear-gradient(0deg, color-mix(in srgb, var(--bro-accent), transparent 90%) 1px, transparent 1px),
    var(--bro-bg);
  background-size: 26px 26px;
}

.bro-controls,
.bro-results,
.bro-visual,
.bro-slicer,
.bro-diagnostics article,
.bro-copy,
.bro-education,
.bro-risk {
  border: 1px solid var(--bro-border);
  border-radius: 8px;
  background: var(--bro-panel);
}

.bro-controls {
  display: grid;
  gap: 0.65rem;
  min-width: 0;
  padding: 0.75rem;
}

.bro-units {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
}

.bro-controls fieldset {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0 0 0.7rem;
  border: 0;
  border-bottom: 1px solid var(--bro-border);
}

.bro-controls fieldset:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.bro-controls legend,
.bro-controls label > span,
.bro-kicker,
.bro-risk span,
.bro-diagnostics span,
.bro-copy span,
.bro-education span {
  color: var(--bro-muted);
  font-size: 0.68rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.bro-controls label {
  display: grid;
  gap: 0.25rem;
}

.bro-controls label > span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.bro-controls small {
  display: grid;
  place-items: center;
  width: 1rem;
  height: 1rem;
  border-radius: 999px;
  background: var(--bro-accent);
  color: #fff;
  cursor: help;
}

.bro-controls input,
.bro-controls select,
.bro-units button,
.bro-copy button {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--bro-border);
  border-radius: 4px;
  background: var(--bro-field);
  color: var(--bro-ink);
  font: inherit;
  font-weight: 760;
  padding: 0.5rem 0.58rem;
}

.bro-controls select {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--bro-muted) 50%),
    linear-gradient(135deg, var(--bro-muted) 50%, transparent 50%);
  background-position:
    calc(100% - 1.05rem) 50%,
    calc(100% - 0.72rem) 50%;
  background-repeat: no-repeat;
  background-size: 0.34rem 0.34rem;
  padding-right: 2.25rem;
}

.bro-controls label b {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.35rem;
  align-items: center;
}

.bro-controls em {
  color: var(--bro-muted);
  font-style: normal;
  font-weight: 850;
}

.bro-units button,
.bro-copy button {
  cursor: pointer;
}

.bro-units button.active,
.bro-copy button {
  border-color: var(--bro-accent);
  background: var(--bro-accent);
  color: #fff;
}

.bro-controls input:focus,
.bro-controls select:focus,
.bro-units button:focus,
.bro-copy button:focus {
  outline: 2px solid var(--bro-safe);
  outline-offset: 1px;
}

.bro-results {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(13rem, 0.92fr);
  gap: 0.65rem;
  min-width: 0;
  padding: 0.75rem;
}

.bro-visual {
  display: grid;
  gap: 0.55rem;
  padding: 0.65rem;
}

.bro-bridge {
  width: 100%;
  min-height: 13rem;
  border-radius: 6px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--bro-accent), transparent 88%), transparent),
    var(--bro-field);
}

.bro-grid {
  fill: none;
  stroke: color-mix(in srgb, var(--bro-muted), transparent 70%);
  stroke-width: 1;
}

.bro-pillar {
  fill: color-mix(in srgb, var(--bro-ink), transparent 82%);
  stroke: var(--bro-ink);
  stroke-width: 3;
}

.bro-span-shadow {
  fill: none;
  stroke: color-mix(in srgb, var(--bro-muted), transparent 70%);
  stroke-dasharray: 7 7;
  stroke-linecap: round;
  stroke-width: 9;
}

.bro-span {
  fill: none;
  stroke: var(--bro-safe);
  stroke-linecap: round;
  stroke-width: 11;
  transition: d 0.18s ease, stroke 0.18s ease;
}

.bro-root[data-risk="orange"] .bro-span {
  stroke: var(--bro-warn);
}

.bro-root[data-risk="red"] .bro-span {
  stroke: var(--bro-danger);
}

.bro-anchor {
  fill: var(--bro-accent);
}

.bro-svg-label {
  fill: var(--bro-ink);
  font-size: 20px;
  font-weight: 850;
}

.bro-risk {
  display: grid;
  gap: 0.25rem;
  padding: 0.65rem 0.75rem;
  border-left: 5px solid var(--bro-safe);
}

.bro-root[data-risk="orange"] .bro-risk {
  border-left-color: var(--bro-warn);
}

.bro-root[data-risk="red"] .bro-risk {
  border-left-color: var(--bro-danger);
}

.bro-risk b {
  font-size: 1.2rem;
}

.bro-slicer {
  display: grid;
  gap: 0.45rem;
  padding: 0.75rem;
}

.bro-slicer article {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.55rem;
  align-items: center;
  min-width: 0;
  padding: 0.55rem;
  border-radius: 6px;
  background: var(--bro-field);
}

.bro-slicer i {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 6px;
  background: color-mix(in srgb, var(--bro-accent), transparent 82%);
  color: var(--bro-accent);
  font-style: normal;
}

.bro-slicer article span {
  min-width: 0;
  color: var(--bro-muted);
  font-size: 0.86rem;
  font-weight: 800;
}

.bro-slicer article b {
  white-space: nowrap;
  font-size: 1.25rem;
}

.bro-slicer small,
.bro-diagnostics small {
  margin-left: 0.18rem;
  color: var(--bro-muted);
  font-size: 0.75rem;
}

.bro-diagnostics {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
}

.bro-diagnostics article {
  display: grid;
  gap: 0.25rem;
  min-width: 0;
  padding: 0.65rem;
}

.bro-diagnostics b {
  font-size: 1.2rem;
}

.bro-copy,
.bro-education {
  display: grid;
  grid-column: 1 / -1;
  gap: 0.55rem;
  padding: 0.75rem;
}

.bro-copy pre {
  overflow: auto;
  margin: 0;
  padding: 0.7rem;
  border-radius: 6px;
  background: var(--bro-field);
  color: var(--bro-ink);
  font-size: 0.84rem;
  line-height: 1.45;
  white-space: pre-wrap;
}

.bro-copy button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-weight: 900;
}

.bro-copy p {
  margin: 0;
  color: var(--bro-safe);
  font-size: 0.86rem;
  font-weight: 850;
}

.bro-education p {
  margin: 0;
  line-height: 1.45;
}

.bro-education b {
  color: var(--bro-accent);
}

[hidden] {
  display: none;
}

@media (max-width: 920px) {
  .bro-shell,
  .bro-results {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .bro-shell,
  .bro-results,
  .bro-controls {
    padding: 0.58rem;
  }

  .bro-diagnostics {
    grid-template-columns: 1fr;
  }

  .bro-slicer article {
    grid-template-columns: auto 1fr;
  }

  .bro-slicer article b {
    grid-column: 2;
    justify-self: start;
  }
}