.acb-equation-navigator {
  position: relative;
  z-index: 20;
  padding: 0 0 6px;
  background: var(--acb-surface);
  color: var(--acb-ink);
}

.acb-equation-navigator__inner {
  width: 100%;
  padding: 0 44px;
  margin: 0 auto;
}

.acb-equation-navigator__frame {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.acb-equation-navigator__top {
  display: grid;
  grid-template-columns: repeat(4, minmax(50px, 1fr));
  gap: 4px;
  align-items: start;
  padding: 0 0 50px;
}

.acb-equation-navigator__meta {
  grid-column: 1;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: var(--acb-ink);
  font-size: 16px;
  line-height: 1.4;
  font-weight: 500;
  letter-spacing: -0.04em;
}

.acb-equation-navigator__meta-icon {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: var(--acb-ink);
}

.acb-equation-navigator__meta-icon::before,
.acb-equation-navigator__meta-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  border-radius: 999px;
  background: var(--acb-white);
  transform: translate(-50%, -50%);
}

.acb-equation-navigator__meta-icon::before {
  width: 9px;
  height: 2px;
}

.acb-equation-navigator__meta-icon::after {
  width: 2px;
  height: 9px;
}

.acb-equation-navigator__heading {
  grid-column: span 3;
  place-self: start;
  width: 100%;
  height: min-content;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 26px;
  padding: 0;
  position: relative;
  overflow: hidden;
}

.acb-equation-navigator__copy {
  width: 100%;
  height: min-content;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 18px;
  padding: 0;
  position: relative;
  overflow: hidden;
}

.acb-equation-navigator__title {
  margin: 0;
  width: 100%;
  max-width: 830px;
  color: var(--acb-ink);
  font-family: "Bricolage Grotesque", "Inter", sans-serif;
  font-size: 40px;
  line-height: 1.1;
  font-weight: 600;
  letter-spacing: -0.06em;
  text-wrap: balance;
}

.acb-equation-navigator__title-muted {
  color: rgba(10, 10, 10, 0.54);
}

.acb-equation-navigator__subcopy {
  margin: 0px;
  width: 100%;
  max-width: 375px;
  color: var(--acb-ink);
  font-size: 17px;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.04em;
  opacity: 0.6;
}

.acb-equation-navigator__copy-divider {
  width: 100%;
  max-width: 640px;
  height: 1px;
  margin: 6px 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(10, 10, 10, 0.16) 50%,
    transparent 100%
  );
}

.acb-equation-navigator__lead-body {
  width: 100%;
  max-width: 640px;
  color: rgba(10, 10, 10, 0.62);
  font-size: 18px;
  line-height: 1.42;
  font-weight: 500;
  letter-spacing: -0.04em;
}

.acb-equation-navigator__lead-body p {
  margin: 0;
}

.acb-equation-navigator__lead-body p + p {
  margin-top: 12px;
}

.acb-equation-navigator__basic-formula {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 18px auto;
}

.acb-equation-navigator__basic-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  border: 1px solid rgba(10, 10, 10, 0.08);
  border-radius: 12px;
  padding: 8px 13px 9px;
  background: rgba(10, 10, 10, 0.035);
  color: rgba(10, 10, 10, 0.38);
  font-family: "Inter", "Inter Placeholder", sans-serif;
  font-size: 14px;
  line-height: 1;
  font-weight: 600;
  letter-spacing: -0.035em;
}

.acb-equation-navigator__basic-operator {
  color: rgba(10, 10, 10, 0.2);
  font-family: "Bricolage Grotesque", "Inter", sans-serif;
  font-size: 20px;
  line-height: 1;
  font-weight: 600;
  letter-spacing: -0.05em;
}

.acb-equation-navigator__lead-body strong {
  color: rgba(10, 10, 10, 0.86);
  font-weight: 700;
}

.acb-equation-navigator__lead-statement {
  margin-top: 18px;
  color: rgba(10, 10, 10, 0.86);
  font-family: "Bricolage Grotesque", "Inter", sans-serif;
  font-size: 26px;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.06em;
}

.acb-equation-navigator__lead-statement > span {
  display: block;
}

.acb-equation-navigator__lead-statement-muted {
  color: rgba(10, 10, 10, 0.5);
}

.acb-equation-navigator__tabs {
  height: calc(100svh - var(--acb-header-offset) - 6px);
  min-height: 560px;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 4px;
  border: 1px solid rgba(245, 245, 245, 0.08);
  border-radius: 24px;
  padding: 6px;
  background:
    radial-gradient(circle at 20% 0%, rgba(245, 245, 245, 0.08), transparent 34%),
    var(--acb-panel);
  color: var(--acb-panel-text);
  overflow: hidden;
  contain: layout paint style;
  isolation: isolate;
}

.acb-equation-navigator__formula-bar {
  position: relative;
  z-index: 40;
  border-bottom: 1px solid rgba(245, 245, 245, 0.09);
  padding: 22px 24px 20px;
  background: transparent;
  color: var(--acb-panel-text);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: auto;
  scrollbar-width: none;
}

.acb-equation-navigator__formula-bar::-webkit-scrollbar {
  display: none;
}

.acb-equation-navigator__formula {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(6px, 1vw, 12px);
  min-width: max-content;
  margin: 0;
  color: var(--acb-panel-text);
  font-family: "Bricolage Grotesque", "Inter", sans-serif;
  font-size: clamp(24px, 2.55vw, 38px);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.06em;
  white-space: nowrap;
}

.acb-equation-navigator__part,
.acb-equation-navigator__term {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.acb-equation-navigator__part {
  color: rgba(245, 245, 245, 0.34);
}

.acb-equation-navigator__term {
  appearance: none;
  border: 0;
  border-radius: 0.18em;
  min-height: 0;
  padding: 0;
  background: transparent;
  color: #f5f5f5;
  font: inherit;
  letter-spacing: inherit;
  cursor: pointer;
  position: relative;
  z-index: 0;
  transition: color 220ms ease, transform 220ms ease, text-shadow 220ms ease, filter 220ms ease;
  will-change: transform;
}

.acb-equation-navigator__formula.is-has-active .acb-equation-navigator__term:not(.is-active) {
  color: rgba(245, 245, 245, 0.38);
}

.acb-equation-navigator__term:hover,
.acb-equation-navigator__term:focus-visible {
  color: #f5f5f5;
}

.acb-equation-navigator__term:focus-visible {
  outline: 1px solid rgba(245, 245, 245, 0.8);
  outline-offset: 2px;
}

.acb-equation-navigator__term.is-active {
  transform: none;
  z-index: 8;
  color: rgba(245, 245, 245, 0.72);
  text-shadow: 0 0 0 rgba(245, 245, 245, 0);
  filter: none;
  animation: acb-equation-text-pulse 1350ms ease-in-out infinite;
  transform-origin: 50% 55%;
}

.acb-equation-navigator__term:active {
  filter: brightness(1.08);
}

.acb-equation-navigator__part sup,
.acb-equation-navigator__term sup {
  display: inline-block;
  margin-left: 0.03em;
  font-size: 0.42em;
  line-height: 1;
  transform: translateY(-0.6em);
}

@keyframes acb-equation-text-pulse {
  0%, 100% {
    color: rgba(245, 245, 245, 0.72);
    text-shadow: 0 0 0 rgba(245, 245, 245, 0);
    filter: brightness(1);
  }
  50% {
    color: #ffffff;
    text-shadow:
      0 0 8px rgba(245, 245, 245, 0.42),
      0 0 18px rgba(245, 245, 245, 0.34);
    filter: brightness(1.18);
  }
}

.acb-equation-navigator__rows {
  display: grid;
  position: relative;
  min-height: 0;
  padding: 0;
  overflow: hidden;
  isolation: isolate;
  contain: layout paint style;
}

.acb-equation-variable-line {
  display: grid;
  grid-area: 1 / 1;
  position: absolute;
  inset: 0;
  min-height: 0;
  height: 100%;
  border: 1px solid rgba(245, 245, 245, 0.1);
  border-radius: 4px 4px 18px 18px;
  padding: clamp(28px, 3vw, 44px);
  background: rgba(245, 245, 245, 0.045);
  grid-template-columns: minmax(110px, 0.35fr) minmax(0, 1fr) minmax(240px, 0.58fr);
  gap: clamp(28px, 4vw, 64px);
  align-items: stretch;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  will-change: opacity, transform;
  backface-visibility: hidden;
  transform: translateZ(0);
  transition: background-color 220ms ease, border-color 220ms ease;
}

.acb-equation-variable-line.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  border-color: rgba(245, 245, 245, 0.16);
}

.acb-equation-variable-line__symbol,
.acb-equation-variable-line__content,
.acb-equation-variable-line__diagnostic {
  position: relative;
  z-index: 5;
  will-change: opacity, transform;
  backface-visibility: hidden;
}

.acb-equation-variable-line__symbol {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
  min-width: 0;
}

.acb-equation-variable-line__meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: var(--acb-panel-text);
  font-size: 16px;
  line-height: 1.4;
  font-weight: 500;
  letter-spacing: -0.04em;
}

.acb-equation-variable-line__meta-icon {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: var(--acb-panel-text);
}

.acb-equation-variable-line__meta-icon::before,
.acb-equation-variable-line__meta-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  border-radius: 999px;
  background: var(--acb-ink);
  transform: translate(-50%, -50%);
}

.acb-equation-variable-line__meta-icon::before {
  width: 9px;
  height: 2px;
}

.acb-equation-variable-line__meta-icon::after {
  width: 2px;
  height: 9px;
}
.acb-equation-variable-line__content {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 30px;
  min-width: 0;
}

.acb-equation-variable-line__thesis {
  margin: 0;
  max-width: 680px;
  color: var(--acb-panel-text);
  font-family: "Bricolage Grotesque", "Inter", sans-serif;
  font-size: clamp(32px, 4vw, 36px);
  line-height: 0.98;
  font-weight: 600;
  letter-spacing: -0.065em;
}

.acb-equation-variable-line__thesis-copy {
  margin: 0;
  max-width: 620px;
  color: rgba(245, 245, 245, 0.6);
  font-family: "Inter", "Inter Placeholder", sans-serif;
  font-size: 20px;
  line-height: 1.45;
  font-weight: 500;
  letter-spacing: -0.045em;
}

.acb-equation-variable-line__thesis-copy::before {
  content: "";
  display: block;
  width: 86px;
  height: 6px;
  margin: 0 0 22px;
  background:
    radial-gradient(circle at 3px 50%, rgba(245, 245, 245, 0.72) 0 3px, transparent 4px),
    linear-gradient(90deg, rgba(245, 245, 245, 0.36), rgba(245, 245, 245, 0.06));
  background-repeat: no-repeat;
  background-size: 12px 6px, 100% 1px;
  background-position: 0 0, 0 50%;
}

.acb-equation-variable-line__thesis-copy p {
  margin: 0;
}

.acb-equation-variable-line__thesis-copy p + p {
  margin-top: 12px;
}

.acb-equation-variable-line__thesis-copy strong {
  color: rgba(245, 245, 245, 0.78);
  font-weight: 700;
}

.acb-equation-variable-line__diagnostic {
  border-radius: 16px;
  padding: 22px;
  border: 1px solid rgba(245, 245, 245, 0.1);
  background: rgba(245, 245, 245, 0.055);
  display: flex;
  flex-direction: column;
  gap: 34px;
}

.acb-equation-variable-line__diagnostic-label {
  color: rgba(245, 245, 245, 0.46);
  font-size: 12px;
  line-height: 1;
  font-weight: 600;
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

.acb-equation-variable-line__diagnostic-text {
  margin: 0;
  color: rgba(245, 245, 245, 0.66);
  font-size: 17px;
  line-height: 1.34;
  font-weight: 500;
  letter-spacing: -0.045em;
}

.acb-equation-variable-line__diagnostic-text p {
  margin: 0;
}

.acb-equation-variable-line__diagnostic-text p + p {
  margin-top: 12px;
}

.acb-equation-variable-line__diagnostic-text strong {
  color: rgba(245, 245, 245, 0.82);
  font-weight: 700;
}