.formula-composite-section {
  --composite-ink: #18344b;
  --composite-muted: #617789;
  --composite-line: #d6e0e8;
  --composite-panel: #ffffff;
  --composite-soft: linear-gradient(180deg, #f5fbff 0%, #ecf5fb 100%);
  --composite-accent: #0e6f8d;
  --composite-accent-strong: #0b4f68;
}

.composite-intro-section {
  padding: 28px 0 0;
}

.composite-intro-card {
  /* display: grid; */
  grid-template-columns: minmax(0, 1.15fr) 320px;
  gap: 24px;
  padding: 28px 32px;
  border: 1px solid var(--composite-line);
  border-radius: 24px;
  background: var(--composite-soft);
}

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

.composite-intro-copy h2 {
  margin: 0 0 12px;
  font-size: 22px;
  line-height: 1.12;
  color: var(--composite-ink);
}

.composite-intro-copy > p,
.composite-guidelines li {
  font-size: 15px;
  line-height: 1.75;
  color: var(--composite-muted);
}

.composite-intro-copy > p {
  margin: 0 0 16px;
}

.composite-guidelines {
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(14, 111, 141, 0.12);
}

.composite-guidelines strong {
  display: block;
  margin-bottom: 10px;
  font-size: 14px;
  color: var(--composite-accent-strong);
}

.composite-guidelines ul {
  margin: 0;
  padding-left: 18px;
}

.composite-figure {
  margin: 0;
  padding: 16px;
  border-radius: 20px;
  background: #f7fafc;
  border: 1px solid #e4edf3;
}

.composite-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
}

.composite-figure-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  padding: 18px;
  border: 1px dashed #bfd0db;
  border-radius: 14px;
  background: #fff;
  text-align: center;
  font-size: 14px;
  line-height: 1.6;
  color: var(--composite-muted);
}

.composite-main-section {
  padding: 28px 0 60px;
}

.composite-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.82fr) minmax(240px, 0.48fr);
  gap: 18px;
  align-items: start;
}

.composite-table-card,
.composite-result-card,
.composite-example-card {
  padding: 16px;
  border-radius: 22px;
  background: var(--composite-panel);
  border: 1px solid var(--composite-line);
  box-shadow: 0 18px 40px rgba(16, 53, 76, 0.06);
}

.composite-side {
  display: grid;
  gap: 14px;
}

.composite-card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}

.composite-card-head h3 {
  margin: 0 0 6px;
  font-size: 18px;
  color: var(--composite-ink);
}

.composite-card-head p,
.composite-example-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--composite-muted);
}

.composite-head-formulas {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.composite-formula-chip {
  min-height: 46px;
  padding: 6px 10px;
  border-radius: 12px;
  background: #f7fbfe;
  color: var(--composite-accent-strong);
}

.composite-table-wrap {
  overflow-x: auto;
}

.composite-table {
  width: 100%;
  min-width: 900px;
  border-collapse: collapse;
}

.composite-table th,
.composite-table td {
  padding: 2px 3px;
  border-bottom: 1px solid #e5edf3;
  vertical-align: middle;
  font-size: 12px;
  line-height: 1.2;
}

.composite-table thead th {
  font-size: 11px;
  font-weight: 700;
  color: var(--composite-accent-strong);
  background: #f4f9fc;
  line-height: 1.15;
  padding-top: 4px;
  padding-bottom: 4px;
}

.composite-table tbody th {
  font-weight: 600;
  color: var(--composite-ink);
  background: #fbfdfe;
  text-wrap: nowrap;
}

.composite-table input {
  height: 26px;
  min-height: 26px;
  padding: 0 6px;
  border: 1px solid #cfdae3;
  border-radius: 9px;
  background: #fff;
  color: var(--composite-ink);
  font-size: 12px;
  line-height: 24px;
  box-sizing: border-box;
  appearance: textfield;
  -webkit-appearance: none;
  -moz-appearance: textfield;
  margin: 0;
}

.composite-table input[disabled] {
  background: #edf4f8;
  color: var(--composite-muted);
}

.composite-table input::-webkit-outer-spin-button,
.composite-table input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.composite-total-row th,
.composite-total-row td {
  background: #f7fafc;
}

.composite-table-actions {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

.composite-btn {
  height: 38px;
  padding: 0 14px;
  border: 1px solid var(--composite-line);
  border-radius: 999px;
  background: #fff;
  color: var(--composite-ink);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.composite-btn-primary {
  background: var(--composite-accent);
  border-color: var(--composite-accent);
  color: #fff;
}

.composite-error {
  min-height: 20px;
  margin: 8px 0 0;
  font-size: 12px;
  color: #c13f42;
}

.composite-result-grid {
  display: grid;
  gap: 10px;
}

.composite-result-item {
  padding: 12px;
  border-radius: 16px;
  background: #f7fafc;
  border: 1px solid #e3edf4;
}

.composite-result-formula {
  margin-bottom: 8px;
  color: var(--composite-accent-strong);
}

.composite-result-item strong {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  color: var(--composite-ink);
}

.composite-result-item div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
}

.composite-result-item input {
  height: 38px;
  padding: 0 10px;
  border: 1px solid #cfdae3;
  border-radius: 10px;
  background: #edf4f8;
  color: var(--composite-ink);
  font-size: 12px;
}

.composite-result-item span {
  font-size: 12px;
  font-weight: 600;
  color: var(--composite-muted);
}

.composite-example-card h3 {
  margin: 0 0 10px;
  font-size: 16px;
  color: var(--composite-ink);
}

@media (max-width: 1100px) {
  .composite-intro-card,
  .composite-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .composite-intro-card,
  .composite-table-card,
  .composite-result-card,
  .composite-example-card {
    padding: 16px;
  }

  .composite-card-head {
    flex-direction: column;
  }

  .composite-head-formulas {
    justify-content: flex-start;
  }

  .composite-formula-chip {
    min-height: 52px;
  }

  .composite-table-actions {
    flex-wrap: wrap;
  }
}