.formula-mass-inertia .mi-section {
  padding: 24px 0 48px;
}

.formula-mass-inertia .mi-note {
  padding: 18px 20px;
  border: 1px solid #d6e0ea;
  border-radius: 16px;
  background: linear-gradient(180deg, #f7fbff 0%, #eef4fa 100%);
  margin-bottom: 20px;
}

.formula-mass-inertia .mi-note h2 {
  margin: 0 0 8px;
  color: #123d6b;
}

.formula-mass-inertia .mi-note p {
  margin: 0;
  color: #445a72;
}

.formula-mass-inertia .mi-note p + p {
  margin-top: 8px;
}

.formula-mass-inertia .mi-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
  position: sticky;
  top: 0px;
  z-index: 8;
  padding: 10px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  border: 1px solid #ddd;
  border-radius: 10px;
  box-shadow: 0px 3px 9px 0px rgba(0, 0, 0, 0.2);
}

.formula-mass-inertia .mi-nav__item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 20px;
  padding: 4px 8px;
  border: 1px solid #bfd1e4;
  border-radius: 999px;
  background: #fff;
  color: #123d6b;
  text-decoration: none;
  font-size: 14px;
}

.formula-mass-inertia .mi-card {
  margin-bottom: 24px;
  padding: 18px;
  border: 1px solid #d6e0ea;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 12px 28px rgba(14, 44, 82, 0.08);
}

.formula-mass-inertia .mi-card__head h3 {
  margin: 0 0 16px;
  color: #123d6b;
}

.formula-mass-inertia .mi-card__top {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 16px;
  align-items: stretch;
  margin-bottom: 18px;
}

.formula-mass-inertia .mi-figure {
  margin: 0;
  min-height: 140px;
  border: 1px solid #cfd8e2;
  border-radius: 14px;
  overflow: hidden;
  background: #f8fbff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.formula-mass-inertia .mi-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.formula-mass-inertia .mi-mode-select {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border: 1px solid #cfd8e2;
}

.formula-mass-inertia .mi-mode-select__item {
  min-height: 140px;
  padding: 18px;
  border: 0;
  background: #fff;
  color: #111827;
  cursor: pointer;
}

.formula-mass-inertia .mi-mode-select__item + .mi-mode-select__item {
  border-left: 1px solid #cfd8e2;
}

.formula-mass-inertia .mi-mode-select__item.is-active {
  background: #eff6ff;
  color: #123d6b;
}

.formula-mass-inertia .mi-mode-select__item span {
  display: block;
  max-width: 210px;
  margin: 0 auto;
  text-align: center;
  font-size: 20px;
  line-height: 1.3;
}

.formula-mass-inertia .mi-panel {
  display: none;
}

.formula-mass-inertia .mi-panel.is-active {
  display: block;
}

.formula-mass-inertia .mi-block + .mi-block {
  margin-top: 16px;
}

.formula-mass-inertia .mi-block__title {
  padding: 14px 16px;
  background: #f1f3f5;
  color: #26384d;
  font-weight: 700;
}

.formula-mass-inertia .mi-table {
  border: 1px solid #cfd8e2;
  border-top: 0;
}

.formula-mass-inertia .mi-row {
  display: grid;
  grid-template-columns: 1.4fr 1.1fr 1.4fr 1.4fr;
}

.formula-mass-inertia .mi-row + .mi-row {
  border-top: 1px solid #cfd8e2;
}

.formula-mass-inertia .mi-cell {
  display: flex;
  align-items: center;
  min-height: 40px;
  padding: 10px 12px;
}

.formula-mass-inertia .mi-cell + .mi-cell {
  border-left: 1px solid #cfd8e2;
}

.formula-mass-inertia .mi-cell--symbol {
  justify-content: center;
}

.formula-mass-inertia .mi-cell--value input,
.formula-mass-inertia .mi-cell--unit select {
  flex: 0 1 100%;
  height: 38px;
  padding: 0 10px;
  border: 1px solid #c2d1e0;
  border-radius: 5px;
  background: #fff;
  color: #16324f;
}

.formula-mass-inertia .mi-main-formula,
.formula-mass-inertia .mi-inline-formula {
  justify-content: center;
}

.formula-mass-inertia .mi-main-formula .katex,
.formula-mass-inertia .mi-inline-formula .katex {
  font-size: 18px !important;
}

.formula-mass-inertia .mi-error {
  min-height: 24px;
  margin: 10px 2px 0;
  color: #c62828;
}

@media (max-width: 767px) {
  .formula-mass-inertia .mi-nav {
    position: relative;
  }

  .formula-mass-inertia .mi-card {
    padding: 14px;
    border-radius: 16px;
  }

  .formula-mass-inertia .mi-card__top {
    grid-template-columns: 1fr;
  }

  .formula-mass-inertia .mi-figure {
    min-height: 180px;
  }

  .formula-mass-inertia .mi-mode-select {
    grid-template-columns: 1fr;
  }

  .formula-mass-inertia .mi-mode-select__item + .mi-mode-select__item {
    border-left: 0;
    border-top: 1px solid #cfd8e2;
  }

  .formula-mass-inertia .mi-mode-select__item {
    min-height: 110px;
  }

  .formula-mass-inertia .mi-mode-select__item span {
    font-size: 14px;
  }

  .formula-mass-inertia .mi-row {
    grid-template-columns: 1fr;
  }

  .formula-mass-inertia .mi-cell {
    min-height: auto;
  }

  .formula-mass-inertia .mi-cell + .mi-cell {
    border-left: 0;
    border-top: 1px solid #cfd8e2;
  }

  .formula-mass-inertia .mi-main-formula .katex,
  .formula-mass-inertia .mi-inline-formula .katex {
    font-size: 16px !important;
  }
}