.formula-cylinder-force {
  --cf-ink: #17344c;
  --cf-muted: #667b8c;
  --cf-line: #dbe5ec;
  --cf-soft: linear-gradient(180deg, #f6fbff 0%, #edf5fb 100%);
  --cf-panel: #ffffff;
  --cf-accent: #1672b8;
  --cf-accent-deep: #0e4f82;
  --cf-warn: #d93b3b;
}

.cf-hero {
  padding: 28px 0 0;
}

.cf-hero__card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
  align-items: center;
  padding: 28px 32px;
  border: 1px solid var(--cf-line);
  border-radius: 24px;
  background: var(--cf-soft);
}

.cf-hero__kicker {
  margin: 0 0 10px;
  color: var(--cf-accent);
  font-weight: 700;
  text-transform: uppercase;
}

.cf-hero__card h2 {
  margin: 0 0 12px;
  color: var(--cf-ink);
}

.cf-hero__card p {
  margin: 0;
  color: var(--cf-muted);
}

.cf-hero__figure {
  margin: 0;
  padding: 12px;
  border-radius: 20px;
  background: #fff;
  border: 1px solid #e1ebf2;
}

.cf-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.cf-hero__empty,
.cf-doc-card__empty {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 180px;
  padding: 16px;
  border: 1px dashed #bfd0db;
  border-radius: 12px;
  background: #fff;
  color: var(--cf-muted);
  text-align: center;
}

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

.cf-tabs {
  display: inline-flex;
  gap: 8px;
  padding: 6px;
  margin-bottom: 18px;
  border: 1px solid var(--cf-line);
  border-radius: 18px;
  background: #f5fafc;
}

.cf-tabs__btn {
  min-height: 40px;
  padding: 0 18px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--cf-ink);
  cursor: pointer;
}

.cf-tabs__btn.is-active {
  background: var(--cf-accent);
  color: #fff;
}

.cf-panel {
  display: none;
}

.cf-panel.is-active {
  display: block;
}

.cf-calc,
.cf-doc {
  display: grid;
  gap: 18px;
}

.cf-step,
.cf-doc-card {
  padding: 20px;
  border: 1px solid var(--cf-line);
  border-radius: 22px;
  background: var(--cf-panel);
  box-shadow: 0 16px 34px rgba(16, 53, 76, 0.05);
}

.cf-step__title,
.cf-doc-card h3 {
  margin: 0 0 12px;
  color: var(--cf-ink);
}

.cf-step__title span {
  color: var(--cf-warn);
}

.cf-card {
  display: grid;
  gap: 14px;
}

.cf-unit-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.cf-radio {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid #cfdae3;
  border-radius: 12px;
  background: #fff;
}

.cf-fields {
  display: grid;
  gap: 10px;
  max-width: 620px;
}

.cf-fields--compact {
  max-width: 420px;
}

.cf-field,
.cf-result {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cf-field span,
.cf-result span {
  flex: 0 0 260px;
  color: var(--cf-ink);
  font-weight: 600;
}

.cf-field input,
.cf-result input {
  flex: 1 1 auto;
  min-width: 0;
  height: 40px;
  padding: 0 12px;
  border: 1px solid #c6d3de;
  border-radius: 8px;
  background: #fff;
  color: var(--cf-ink);
}

.cf-result input[readonly] {
  background: #eef4f8;
}

.cf-actions {
  display: flex;
  gap: 10px;
}

.cf-btn {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid #b9c9d7;
  border-radius: 8px;
  background: #fff;
  color: var(--cf-ink);
  cursor: pointer;
}

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

.cf-formula-list,
.cf-doc-formulas {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.cf-formula-chip,
.cf-doc-formula {
  display: inline-flex;
  align-items: flex-start;
  padding: 8px 12px;
  border-radius: 12px;
  background: #f7fbfe;
  border: 1px solid #e4edf3;
  color: var(--cf-accent-deep);
  overflow: visible;
}

.cf-formula-chip .katex,
.cf-formula-chip .katex-html,
.cf-doc-formula .katex,
.cf-doc-formula .katex-html {
  line-height: 1.15 !important;
  overflow: visible;
}

.cf-formula-chip .katex .base,
.cf-doc-formula .katex .base {
  margin-top: 0.04em;
  margin-bottom: 0.04em;
}

.cf-formula-chip .katex .base + .base,
.cf-doc-formula .katex .base + .base {
  margin-top: 0.18em;
}

.cf-results {
  display: grid;
  gap: 10px;
}

.cf-note {
  min-height: 18px;
  margin: 0;
  color: var(--cf-warn);
}

.cf-doc-card p {
  margin: 0;
  color: var(--cf-muted);
}

.cf-doc-card--media {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 18px;
  align-items: start;
}

.cf-doc-card__figure {
  margin: 0;
  padding: 10px;
  border-radius: 18px;
  background: #f8fbfd;
  border: 1px solid #e3edf4;
}

.cf-doc-card__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

@media (max-width: 991px) {
  .cf-hero__card,
  .cf-doc-card--media,
  .cf-field,
  .cf-result {
    grid-template-columns: 1fr;
  }

  .cf-hero__card,
  .cf-doc-card--media {
    display: grid;
  }

  .cf-field,
  .cf-result {
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }

  .cf-field span,
  .cf-result span {
    flex: none;
  }
}

@media (max-width: 767px) {
  .cf-hero__card,
  .cf-step,
  .cf-doc-card {
    padding: 16px;
  }

  .cf-tabs {
    width: 100%;
    justify-content: space-between;
  }

  .cf-tabs__btn {
    flex: 1 1 50%;
    padding: 0 10px;
  }
}