.rv-wrapper {
    width: 100%;
    max-width: 32rem;
    margin: 2rem auto;
  }

  .rv-card {
    background: white;
    border-radius: 1.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    border: 1px solid #e2e8f0;
    overflow: hidden;
    position: relative;
  }

  .theme-dark .rv-card {
    background: #0f172a;
    border-color: #1e293b;
  }

  .rv-bg-icon {
    position: absolute;
    top: 0;
    right: 0;
    padding: 1rem;
    opacity: 0.05;
    color: currentcolor;
  }

  .rv-bg-icon svg {
    width: 8rem;
    height: 8rem;
  }

  .rv-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    position: relative;
    z-index: 1;
  }

  .rv-field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .rv-label {
    font-size: 0.875rem;
    font-weight: 700;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }

  .theme-dark .rv-label {
    color: #94a3b8;
  }

  .rv-input-wrapper {
    position: relative;
  }

  .rv-currency {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    font-size: 1.25rem;
    pointer-events: none;
  }

  .rv-input {
    width: 100%;
    padding: 1rem 1rem 1rem 2.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    background: #f8fafc;
    border: 2px solid transparent;
    border-radius: 0.75rem;
    outline: none;
    transition: border-color 0.2s;
    color: #1e293b;
  }

  .theme-dark .rv-input {
    background: #1e293b;
    color: white;
  }

  .rv-input:focus {
    border-color: #3b82f6;
  }

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

  .rv-btn-group {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
  }

  .rv-btn {
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 700;
    border: 2px solid #e2e8f0;
    background: transparent;
    color: #475569;
    cursor: pointer;
    transition: all 0.15s;
  }

  .theme-dark .rv-btn {
    border-color: #334155;
    color: #94a3b8;
  }

  .rv-btn:hover {
    border-color: #93c5fd;
  }

  .rv-btn.rv-active {
    background: #3b82f6;
    border-color: #3b82f6;
    color: white;
  }

  .rv-results {
    background: #f8fafc;
    border-radius: 0.75rem;
    padding: 1.5rem;
    border: 1px solid #f1f5f9;
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  .theme-dark .rv-results {
    background: rgba(30, 41, 59, 0.5);
    border-color: #334155;
  }

  .rv-result-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
  }

  .rv-result-base {
    padding-bottom: 1rem;
    border-bottom: 1px dashed #e2e8f0;
  }

  .theme-dark .rv-result-base {
    border-bottom-color: #334155;
  }

  .rv-result-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: #64748b;
  }

  .theme-dark .rv-result-label {
    color: #94a3b8;
  }

  .rv-result-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1e293b;
  }

  .theme-dark .rv-result-value {
    color: white;
  }

  .rv-vat-value {
    font-size: 1.5rem;
    color: #3b82f6;
  }

  .theme-dark .rv-vat-value {
    color: #93c5fd;
  }

  @media (max-width: 40rem) {
    .rv-content {
      padding: 1.5rem;
    }

    .rv-result-value {
      font-size: 1.5rem;
    }
  }