.fdc-calculator,
.fdc-calculator * {
  box-sizing: border-box;
}

.fdc-calculator {
  --fdc-bg: #f4f6f8;
  --fdc-panel: #ffffff;
  --fdc-panel-2: #f8fafc;
  --fdc-text: #111827;
  --fdc-muted: #667085;
  --fdc-border: #d7dde5;
  --fdc-primary: #374151;
  --fdc-primary-strong: #1f2937;
  --fdc-accent: #2563eb;
  --fdc-good: #047857;
  --fdc-warn: #b45309;
  --fdc-danger: #b42318;
  --fdc-shadow: 0 22px 60px rgba(15, 23, 42, 0.13);
  --fdc-radius: 22px;
  color: var(--fdc-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  margin: 0 auto;
  max-width: 1220px;
  padding: 18px;
}

.fdc-calculator.fdc-is-dark,
.fdc-calculator.fdc-theme-dark {
  --fdc-bg: #111827;
  --fdc-panel: #1f2937;
  --fdc-panel-2: #172033;
  --fdc-text: #f9fafb;
  --fdc-muted: #cbd5e1;
  --fdc-border: #344256;
  --fdc-primary: #d1d5db;
  --fdc-primary-strong: #f9fafb;
  --fdc-accent: #60a5fa;
  --fdc-shadow: 0 24px 70px rgba(0, 0, 0, 0.38);
}

.fdc-shell {
  background: linear-gradient(145deg, var(--fdc-bg), var(--fdc-panel-2));
  border: 1px solid var(--fdc-border);
  border-radius: calc(var(--fdc-radius) + 8px);
  box-shadow: var(--fdc-shadow);
  overflow: hidden;
  padding: 16px;
}

.fdc-header {
  align-items: flex-start;
  display: flex;
  flex-direction: column;
  gap: 14px;
  justify-content: space-between;
  padding: 8px 4px 18px;
}

.fdc-eyebrow {
  color: var(--fdc-muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  margin: 0 0 4px;
  text-transform: uppercase;
}

.fdc-header h2 {
  color: var(--fdc-text);
  font-size: clamp(1.55rem, 4vw, 2.5rem);
  line-height: 1.05;
  margin: 0;
}

.fdc-theme-toggle,
.fdc-button {
  -webkit-appearance: none;
  align-items: center;
  appearance: none;
  background: var(--fdc-panel);
  border: 1px solid var(--fdc-border);
  border-radius: 999px;
  color: var(--fdc-text);
  cursor: pointer;
  display: inline-flex;
  font: inherit;
  font-weight: 800;
  gap: 8px;
  justify-content: center;
  line-height: 1;
  min-height: 44px;
  padding: 12px 16px;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, border-color 180ms ease;
}

.fdc-theme-toggle:hover,
.fdc-button:hover {
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.15);
  transform: translateY(-1px);
}

.fdc-theme-toggle:focus-visible,
.fdc-button:focus-visible,
.fdc-calculator input:focus-visible,
.fdc-calculator select:focus-visible,
.fdc-calculator textarea:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.36);
  outline-offset: 3px;
}

.fdc-grid {
  display: grid;
  gap: 16px;
}

.fdc-panel {
  background: var(--fdc-panel);
  border: 1px solid var(--fdc-border);
  border-radius: var(--fdc-radius);
  box-shadow: 0 12px 36px rgba(15, 23, 42, 0.08);
  padding: 16px;
}

.fdc-section + .fdc-section {
  border-top: 1px solid var(--fdc-border);
  margin-top: 18px;
  padding-top: 18px;
}

.fdc-section-head {
  align-items: center;
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
}

.fdc-icon {
  align-items: center;
  background: linear-gradient(145deg, var(--fdc-primary), var(--fdc-primary-strong));
  border-radius: 14px;
  color: #fff;
  display: inline-flex;
  font-weight: 900;
  height: 34px;
  justify-content: center;
  min-width: 34px;
}

.fdc-section h3 {
  color: var(--fdc-text);
  font-size: 1.05rem;
  margin: 0;
}

.fdc-field {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 14px;
}

.fdc-field-row,
.fdc-choice-grid {
  display: grid;
  gap: 12px;
}

.fdc-calculator label,
.fdc-choice span,
.fdc-toggle span {
  color: var(--fdc-text);
  font-size: 0.94rem;
  font-weight: 800;
}

.fdc-help {
  color: var(--fdc-muted);
  font-size: 0.84rem;
  line-height: 1.35;
}

.fdc-calculator input[type="date"],
.fdc-calculator input[type="number"],
.fdc-calculator select,
.fdc-calculator textarea {
  background: var(--fdc-panel-2);
  border: 1px solid var(--fdc-border);
  border-radius: 14px;
  color: var(--fdc-text);
  font: inherit;
  min-height: 48px;
  padding: 12px 13px;
  width: 100%;
}

.fdc-calculator textarea {
  min-height: 84px;
  resize: vertical;
}

.fdc-input-suffix {
  align-items: center;
  background: var(--fdc-panel-2);
  border: 1px solid var(--fdc-border);
  border-radius: 14px;
  display: flex;
  overflow: hidden;
}

.fdc-input-suffix input {
  background: transparent !important;
  border: 0 !important;
  border-radius: 0 !important;
}

.fdc-input-suffix span {
  border-left: 1px solid var(--fdc-border);
  color: var(--fdc-muted);
  font-weight: 800;
  padding: 0 12px;
  white-space: nowrap;
}

.fdc-choice,
.fdc-toggle {
  align-items: flex-start;
  background: var(--fdc-panel-2);
  border: 1px solid var(--fdc-border);
  border-radius: 16px;
  cursor: pointer;
  display: flex;
  gap: 10px;
  padding: 13px;
}

.fdc-choice input,
.fdc-toggle input {
  accent-color: var(--fdc-accent);
  margin-top: 2px;
  min-height: 18px;
  min-width: 18px;
}

.fdc-toggle-list {
  display: grid;
  gap: 10px;
  margin-bottom: 14px;
}

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

.fdc-button-primary {
  background: linear-gradient(145deg, var(--fdc-primary), var(--fdc-primary-strong));
  border-color: transparent;
  color: #fff;
}

.fdc-button-ghost {
  background: transparent;
}

.fdc-results {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.fdc-result-hero {
  background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.16), transparent 45%), linear-gradient(145deg, var(--fdc-primary-strong), var(--fdc-primary));
  border-radius: 22px;
  color: #fff;
  padding: 24px;
}

.fdc-result-hero p {
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.09em;
  margin: 0 0 10px;
  opacity: 0.82;
  text-transform: uppercase;
}

.fdc-result-hero strong {
  display: block;
  font-size: clamp(1.75rem, 8vw, 3.2rem);
  line-height: 1;
  overflow-wrap: anywhere;
}

.fdc-result-hero span {
  display: block;
  font-weight: 800;
  margin-top: 8px;
  opacity: 0.9;
}

.fdc-cards {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr;
}

.fdc-card {
  background: var(--fdc-panel-2);
  border: 1px solid var(--fdc-border);
  border-radius: 16px;
  padding: 14px;
}

.fdc-card span {
  color: var(--fdc-muted);
  display: block;
  font-size: 0.82rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.fdc-card strong {
  color: var(--fdc-text);
  display: block;
  font-size: 1.05rem;
}

.fdc-alert {
  background: rgba(180, 83, 9, 0.12);
  border: 1px solid rgba(180, 83, 9, 0.35);
  border-radius: 14px;
  color: var(--fdc-warn);
  font-weight: 800;
  line-height: 1.4;
  padding: 12px;
}

.fdc-chart-wrap {
  background: var(--fdc-panel-2);
  border: 1px solid var(--fdc-border);
  border-radius: 18px;
  overflow: hidden;
  padding: 10px;
}

.fdc-chart-wrap canvas {
  display: block;
  height: auto;
  max-width: 100%;
  width: 100%;
}

.fdc-table-wrap {
  border: 1px solid var(--fdc-border);
  border-radius: 18px;
  overflow-x: auto;
}

.fdc-breakdown {
  border-collapse: collapse;
  color: var(--fdc-text);
  font-size: 0.92rem;
  min-width: 420px;
  width: 100%;
}

.fdc-breakdown caption {
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

.fdc-breakdown th,
.fdc-breakdown td {
  border-bottom: 1px solid var(--fdc-border);
  padding: 12px;
  text-align: left;
  vertical-align: top;
}

.fdc-breakdown tr:last-child th,
.fdc-breakdown tr:last-child td {
  border-bottom: 0;
}

.fdc-breakdown th {
  background: var(--fdc-panel-2);
  color: var(--fdc-muted);
  font-weight: 900;
  width: 42%;
}

.fdc-note {
  background: rgba(37, 99, 235, 0.09);
  border: 1px solid rgba(37, 99, 235, 0.28);
  border-radius: 16px;
  color: var(--fdc-text);
  display: grid;
  gap: 4px;
  line-height: 1.45;
  padding: 14px;
}

.fdc-note strong {
  color: var(--fdc-accent);
}

@media (min-width: 560px) {
  .fdc-header {
    align-items: center;
    flex-direction: row;
  }

  .fdc-field-row,
  .fdc-choice-grid,
  .fdc-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 920px) {
  .fdc-calculator {
    padding: 28px;
  }

  .fdc-shell {
    padding: 24px;
  }

  .fdc-grid {
    align-items: start;
    grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
  }

  .fdc-panel {
    padding: 22px;
  }

  .fdc-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media print {
  .fdc-theme-toggle,
  .fdc-actions,
  .fdc-form {
    display: none !important;
  }

  .fdc-calculator {
    max-width: none;
    padding: 0;
  }

  .fdc-shell,
  .fdc-panel {
    box-shadow: none;
  }
}