:root {
    --color-dark: rgba(36, 38, 45, 1);
    --color-dark-secondary: rgba(49, 52, 60, 1);
    --color-green: #008834;
    --color-gray: rgba(96, 99, 108, 1);
    --color-white: #fff;
    --color-light-gray: #f6f7fa;
    
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --transition-speed: 0.3s;
  
    font-family: var(--font-family);
    line-height: 1.5;
    font-weight: 400;
  
    color-scheme: light;
    color: var(--color-dark);
    background-color: var(--color-light-gray);
  
    font-synthesis: none;
    text-rendering: optimizeLegistics;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  

  
  #app-container {
    margin: 0;
    display: flex;
    place-items: center;
    min-width: 320px;
    min-height: 100vh;
  }
  
  #app {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .calculator-container {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: transform var(--transition-speed);
  }
  
  .calculator-container:hover {
    transform: translateY(-2px);
  }
  
  .calculator-header {
    background-color: var(--color-green);
    color: var(--color-white);
    padding: var(--spacing-lg);
    text-align: center;
  }
  
  #app h2 {
    font-size: 2rem;
    font-weight: 600;
    margin: 0;
    line-height: 1.2;
  }
  
  .subtitle {
    margin-top: var(--spacing-sm);
    color: var(--color-light-gray);
    font-weight: 300;
  }
  
  .calculator-body {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
  }
  
  @media (min-width: 768px) {
    .calculator-body {
      flex-direction: row;
      gap: var(--spacing-lg);
    }
  }

  @media (max-width: 768px) {
    .calculator-body {

      padding: var(--spacing-sm);
    }
  }
  
  .input-section {
    flex: 1;
    padding: var(--spacing-md);
  }
  
  .results-section {
    flex: 1.5;
    padding: var(--spacing-md);
  }
  
  .static-info {
    background-color: var(--color-light-gray);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
  }
  
  .info-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
  }
  
  .info-label {
    color: var(--color-gray);
    font-weight: 500;
  }
  
  .info-value {
    font-weight: 600;
    color: var(--color-dark);
  }
  
  .input-group {
    margin-bottom: var(--spacing-lg);
  }
  
  label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--color-dark);
  }
  
  .input-field {
    display: flex;
    align-items: center;
    background-color: var(--color-light-gray);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    transition: all var(--transition-speed);
  }
  
  .input-field.active {
    border-color: var(--color-dark-secondary);
  }
  
  .input-field.active:focus-within {
    border-color: var(--color-green);
    box-shadow: 0 0 0 2px rgba(0, 136, 52, 0.2);
  }
  
  .input-field input {
    border: none;
    background: transparent;
    width: 100%;
    padding: var(--spacing-sm) 0;
    font-size: 1rem;
    color: inherit;
    text-align: center;
  }
  
  .input-field input:focus {
    outline: none;
  }
  
  .amount-control {
    background: none;
    border: none;
    color: var(--color-dark);
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    padding: 0 var(--spacing-sm);
    transition: color var(--transition-speed);
  }
  
  .amount-control:hover {
    color: var(--color-green);
  }
  
  .amount-control:active {
    transform: scale(0.95);
  }
  
  .summary-box {
    margin-top: var(--spacing-xl);
    background-color: var(--color-light-gray);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
  }
  
  .summary-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  }
  
  .summary-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }
  
  .summary-label {
    font-weight: 500;
  }
  
  .summary-value {
    font-weight: 600;
  }
  
  .summary-value.highlight {
    color: var(--color-green);
    font-size: 1.1rem;
  }
  
 #app h2 {
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-white);
  }
  
  .schedule-container {
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius-md);
  }
  
  .payout-table {
    width: 100%;
    border-collapse: collapse;
  }
  
  .payout-table th {
    background-color: var(--color-dark-secondary);
    color: var(--color-white);
    text-align: left;
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: 500;
  }
  
  .payout-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  }
  
  .payout-table tr:last-child td {
    border-bottom: none;
  }
  
  .payout-table tr:hover {
    background-color: rgba(0, 136, 52, 0.05);
  }
  
  .payment-interest {
    color: var(--color-green);
  }
  
  .payment-principal {
    font-weight: 600;
  }
  
  .calculator-footer {
    background-color: var(--color-light-gray);
    padding: var(--spacing-md);
    text-align: center;
    font-size: 0.9rem;
    color: var(--color-gray);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
  }
  
  /* Animation for table rows appearing */
  @keyframes fadeIn {
    from {
      opacity: 0;
      transform: translateY(10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  #payout-schedule tr {
    animation: fadeIn 0.3s ease-out forwards;
  }
  
  #payout-schedule tr:nth-child(1) { animation-delay: 0.05s; }
  #payout-schedule tr:nth-child(2) { animation-delay: 0.1s; }
  #payout-schedule tr:nth-child(3) { animation-delay: 0.15s; }
  #payout-schedule tr:nth-child(4) { animation-delay: 0.2s; }
  #payout-schedule tr:nth-child(5) { animation-delay: 0.25s; }
  #payout-schedule tr:nth-child(6) { animation-delay: 0.3s; }
  #payout-schedule tr:nth-child(7) { animation-delay: 0.35s; }
  #payout-schedule tr:nth-child(8) { animation-delay: 0.4s; }
  #payout-schedule tr:nth-child(9) { animation-delay: 0.45s; }
  #payout-schedule tr:nth-child(10) { animation-delay: 0.5s; }
  #payout-schedule tr:nth-child(11) { animation-delay: 0.55s; }
  #payout-schedule tr:nth-child(12) { animation-delay: 0.6s; }
  #payout-schedule tr:nth-child(13) { animation-delay: 0.65s; }
  
  /* Responsive adjustments */
  @media (max-width: 768px) {
    .calculator-body {
      flex-direction: column;
    }
    
    .input-section, .results-section {
      padding: var(--spacing-sm);
    }
    
    h1 {
      font-size: 1.5rem;
    }
    
    .payout-table th, .payout-table td {
      padding: var(--spacing-xs) var(--spacing-sm);
    }
  }