.formula-sec-moment {
  --sm-ink: #17344c;
  --sm-muted: #617789;
  --sm-line: #d9e2e9;
  --sm-panel: #ffffff;
  --sm-soft: linear-gradient(180deg, #f7fbfe 0%, #edf5fb 100%);
  --sm-accent: #0d6c8a;
  --sm-accent-strong: #0a4d66;
}

.sec-moment-intro {
  padding: 28px 0 0;
}

.sec-moment-intro-card {
  padding: 28px 32px;
  border: 1px solid var(--sm-line);
  border-radius: 24px;
  background: var(--sm-soft);
}

.sec-moment-kicker {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--sm-accent);
}

.sec-moment-intro-card h2 {
  margin: 0 0 12px;
  font-size: 22px;
  line-height: 1.12;
  color: var(--sm-ink);
}

.sec-moment-intro-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--sm-muted);
}

.sec-moment-main {
  padding: 24px 0 60px;
}

.sec-moment-nav {
  position: sticky;
  top: 18px;
  z-index: 20;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 12px;
  margin-bottom: 24px;
  border: 1px solid var(--sm-line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
}

.sec-moment-nav__item {
  flex: 0 0 120px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  padding: 10px;
  border: 1px solid #d8e3eb;
  border-radius: 16px;
  background: #fff;
  cursor: pointer;
}

.sec-moment-nav__item.is-active {
  border-color: var(--sm-accent);
  box-shadow: inset 0 0 0 1px rgba(13, 108, 138, 0.15);
  background: #f2f9fd;
}

.sec-moment-nav__thumb {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 72px;
  padding: 6px;
  border-radius: 12px;
  background: #f6fafc;
}

.sec-moment-nav__thumb img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 72px;
  object-fit: contain;
}

.sec-moment-nav__placeholder {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: #e9f2f8;
  font-size: 20px;
  font-weight: 700;
  color: var(--sm-accent-strong);
}

.sec-moment-nav__label {
  font-size: 12px !important;
  font-weight: 600;
  line-height: 1.35;
  text-align: center;
  color: var(--sm-ink);
}

.sec-moment-sections {
  display: grid;
  gap: 22px;
}

.sec-moment-block {
  scroll-margin-top: 130px;
  padding: 24px;
  border: 1px solid var(--sm-line);
  border-radius: 24px;
  background: var(--sm-panel);
  box-shadow: 0 18px 40px rgba(16, 53, 76, 0.06);
}

.sec-moment-block__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 20px;
  align-items: center;
  margin-bottom: 20px;
}

.sec-moment-block__head h3 {
  margin: 0 0 8px;
  font-size: 20px;
  color: var(--sm-ink);
}

.sec-moment-block__head p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--sm-muted);
}

.sec-moment-figure {
  margin: 0;
  padding: 14px;
  border-radius: 18px;
  background: #f7fafc;
  border: 1px solid #e3edf4;
}

.sec-moment-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: contain;
}

.sec-moment-figure__empty {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 180px;
  border: 1px dashed #bfd0db;
  border-radius: 14px;
  background: #fff;
  font-size: 14px;
  color: var(--sm-muted);
  text-align: center;
  padding: 16px;
}

.sec-moment-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  align-items: start;
}

.sec-moment-card {
  padding: 18px;
  border-radius: 20px;
  background: #f9fbfc;
  border: 1px solid #e6edf2;
}

.sec-moment-card__head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 14px;
}

.sec-moment-card__head h4 {
  margin: 0;
  font-size: 17px;
  color: var(--sm-ink);
}

.sec-moment-formulas {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.sec-moment-formula-chip {
  min-height: 48px;
  padding: 8px 12px;
  border-radius: 12px;
  background: #fff;
  color: var(--sm-accent-strong);
}

.sec-moment-fields,
.sec-moment-results {
  display: grid;
  gap: 12px;
}

.sec-moment-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sec-moment-field span {
  font-size: 14px;
  font-weight: 600;
  color: var(--sm-ink);
}

.sec-moment-field__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
}

.sec-moment-field input {
  height: 44px;
  padding: 0 12px;
  border: 1px solid #cfdae3;
  border-radius: 12px;
  background: #fff;
  color: var(--sm-ink);
  font-size: 14px;
}

.sec-moment-field input[disabled] {
  background: #edf4f8;
  color: var(--sm-muted);
}

.sec-moment-field em {
  font-style: normal;
  font-size: 13px;
  font-weight: 600;
  color: var(--sm-muted);
}

.sec-moment-error {
  min-height: 18px;
  margin: 12px 0 0;
  font-size: 13px;
  color: #c33d42;
}

@media (max-width: 991px) {
  .sec-moment-block__head,
  .sec-moment-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .sec-moment-intro-card,
  .sec-moment-block,
  .sec-moment-card {
    padding: 16px;
  }

  .sec-moment-nav {
    top: 10px;
    padding: 10px;
  }

  .sec-moment-nav__item {
    flex-basis: 104px;
  }
}