.calculators-widget {
  --calc-ink: #1d2b35;
  --calc-ink-soft: #5a6b78;
  --calc-panel: #ffffff;
  --calc-panel-soft: #f5f8fa;
  --calc-border: #dbe4ea;
  --calc-accent: #0f7d79;
  --calc-danger: #b73838;
  --calc-shadow: 0 14px 36px rgba(22, 37, 48, 0.08);
  color: var(--calc-ink);
  font-family: "Segoe UI", Tahoma, sans-serif;
  margin: 28px 0;
}

.calculators-widget,
.calculators-widget * {
  box-sizing: border-box;
}

.calculators-widget.section {
  border-radius: 20px;
  border: 1px solid var(--calc-border);
  background: linear-gradient(180deg, #ffffff 0%, #f7fafc 100%);
  box-shadow: var(--calc-shadow);
  padding: 22px;
}

.calculators-widget .container {
  width: 100%;
  max-width: 1100px;
  margin: 0;
}

.calculators-widget .section-head {
  margin-bottom: 20px;
}

.calculators-widget .eyebrow {
  margin: 0 0 8px;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--calc-accent);
}

.calculators-widget h2,
.calculators-widget h3 {
  margin: 0;
  color: var(--calc-ink);
}

.calculators-widget h2 {
  font-size: clamp(1.6rem, 3.2vw, 2.2rem);
  line-height: 1.2;
}

.calculators-widget h3 {
  font-size: 1.08rem;
}

.calculators-widget .section-lead {
  margin: 10px 0 0;
  color: var(--calc-ink-soft);
  line-height: 1.6;
}

.calculators-widget .calc-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: 20px;
  align-items: start;
}

.calculators-widget .calc-form {
  display: grid;
  gap: 18px;
}

.calculators-widget .calc-section {
  display: grid;
  gap: 12px;
  border: 1px solid var(--calc-border);
  border-radius: 14px;
  background: var(--calc-panel);
  padding: 14px;
}

.calculators-widget .calc-group,
.calculators-widget .calc-list {
  display: grid;
  gap: 10px;
}

.calculators-widget .calc-form label:not(.radio):not(.toggle) {
  display: grid;
  gap: 6px;
  font-size: 0.93rem;
  font-weight: 600;
  color: var(--calc-ink-soft);
}

.calculators-widget .calc-form input,
.calculators-widget .calc-form select {
  width: 100%;
  border: 1px solid #cfd8df;
  border-radius: 10px;
  padding: 10px 11px;
  font-size: 0.95rem;
  color: var(--calc-ink);
  background: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.calculators-widget .calc-form input:focus,
.calculators-widget .calc-form select:focus {
  outline: none;
  border-color: var(--calc-accent);
  box-shadow: 0 0 0 3px rgba(15, 125, 121, 0.18);
}

.calculators-widget .calc-form input::placeholder {
  color: #8b98a4;
}

.calculators-widget .calc-form input.is-invalid {
  border-color: #d26a6a;
  background: #fff7f7;
}

.calculators-widget .calc-errors {
  min-height: 20px;
  font-weight: 700;
  color: var(--calc-danger);
}

.calculators-widget .calc-row {
  display: grid;
  gap: 10px;
}

.calculators-widget .calc-row.two-cols {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.calculators-widget .calc-row.three-cols {
  grid-template-columns: repeat(2, minmax(0, 1fr)) auto;
  align-items: end;
}

.calculators-widget .calc-row.four-cols {
  grid-template-columns: repeat(3, minmax(0, 1fr)) auto;
  align-items: end;
}

.calculators-widget .field-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.calculators-widget .radio,
.calculators-widget .toggle {
  display: inline-flex;
  gap: 7px;
  align-items: center;
  font-size: 0.9rem;
  color: var(--calc-ink-soft);
  font-weight: 600;
}

.calculators-widget .radio input,
.calculators-widget .toggle input {
  width: auto;
  margin: 0;
}

.calculators-widget .unit-inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.calculators-widget .unit-label {
  font-size: 0.9rem;
  color: var(--calc-ink-soft);
  font-weight: 700;
}

.calculators-widget .unit-toggle {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border-radius: 999px;
  background: var(--calc-panel-soft);
  border: 1px solid var(--calc-border);
  width: fit-content;
}

.calculators-widget .unit-btn {
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--calc-ink-soft);
  padding: 5px 10px;
  font-weight: 700;
  cursor: pointer;
  font-size: 0.84rem;
}

.calculators-widget .unit-btn.is-active {
  background: var(--calc-accent);
  color: #fff;
}

.calculators-widget .btn,
.calculators-widget .icon-btn {
  border: 1px solid var(--calc-border);
  border-radius: 10px;
  background: #fff;
  color: var(--calc-ink);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
}

.calculators-widget .btn {
  padding: 9px 12px;
  width: fit-content;
}

.calculators-widget .btn.ghost {
  background: var(--calc-panel-soft);
}

.calculators-widget .icon-btn {
  padding: 10px 12px;
  min-width: 74px;
}

.calculators-widget .calc-results {
  border: 1px solid var(--calc-border);
  border-radius: 14px;
  background: #fff;
  padding: 14px;
}

.calculators-widget .calc-results h3 {
  margin-bottom: 10px;
}

.calculators-widget .result-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 0;
  border-bottom: 1px solid #edf2f6;
  font-size: 0.94rem;
}

.calculators-widget .result-row strong {
  font-size: 1rem;
}

.calculators-widget .result-row.emphasis strong {
  color: var(--calc-accent);
  font-size: 1.06rem;
}

.calculators-widget .result-note {
  margin: 10px 0 0;
  font-size: 0.9rem;
  color: var(--calc-ink-soft);
  font-weight: 700;
}

.calculators-widget .calc-copy {
  margin-top: 16px;
  border-top: 1px solid var(--calc-border);
  padding-top: 12px;
}

.calculators-widget .calc-copy h3 {
  margin-bottom: 8px;
  font-size: 1rem;
}

.calculators-widget .calc-keywords {
  margin: 0;
  padding-left: 18px;
  color: var(--calc-ink-soft);
  line-height: 1.6;
}

.calculators-widget .is-hidden {
  display: none !important;
}

@media (max-width: 920px) {
  .calculators-widget .calc-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .calculators-widget.section {
    padding: 14px;
    border-radius: 14px;
  }

  .calculators-widget .calc-row.two-cols,
  .calculators-widget .calc-row.three-cols,
  .calculators-widget .calc-row.four-cols {
    grid-template-columns: 1fr;
  }

  .calculators-widget .unit-inline {
    align-items: flex-start;
    flex-direction: column;
  }
}