/* CSS Custom Properties for consistent theming */
:root {
  --primary-color: #007bff;
  --secondary-color: #6c757d;
  --success-color: #28a745;
  --error-color: #dc3545;
  --warning-color: #ffc107;
  --light-bg: #f8f9fa;
  --dark-text: #212529;
  --border-color: #dee2e6;
  --shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-size-base: 16px;
  --line-height: 1.5;
  --border-radius: 4px;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --max-width: 1600px;
}

/* Global reset and base styles */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--dark-text);
  background-color: var(--light-bg);
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Screen reader only class */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Header styling */
header {
  background-color: var(--primary-color);
  color: white;
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
  box-shadow: var(--shadow);
}

header h1 {
  margin: 0;
  font-size: 2rem;
  font-weight: 600;
}

/* Main content layout */
main {
  flex: 1;
  width: 1500px;
  max-width: none;
  margin: 0 auto;
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

/* Section styling */
section {
  background-color: white;
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
}

/* Input section styling */
#input-section {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: flex-start;
}

#input-section label {
  font-weight: 600;
  color: var(--dark-text);
}

#dollar-amount {
  width: 100%;
  max-width: 300px;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  transition: border-color 0.2s, box-shadow 0.2s;
}

#dollar-amount:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

#convert-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
}

#convert-btn:hover {
  background-color: #0056b3;
}

#convert-btn:active {
  transform: translateY(1px);
}

#convert-btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

/* Output sections styling */
#spelled-output h2,
#check-output h2,
#visual-check-section h2 {
  margin-top: 0;
  color: var(--primary-color);
  font-size: 1.25rem;
  font-weight: 600;
}

#spelled-text,
#check-text {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--dark-text);
  background-color: var(--light-bg);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  min-height: 2rem;
  display: flex;
  align-items: center;
}

/* Visual check template styling */
.check-template {
  background-color: transparent;
  background-image: url('blank-check.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  border: 2px solid var(--dark-text);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  position: relative;
  font-family: 'Courier New', monospace;
  max-width: 1500px;
  margin: 0 auto;
  min-height: 500px;
}

.check-template::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  pointer-events: none;
}

.check-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

.check-date {
  flex: 0 0 120px;
}

.check-payee {
  flex: 1;
  margin-left: var(--spacing-lg);
}

.check-amount-numeric {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  background-color: transparent;
  border-radius: var(--border-radius);
  max-width: 200px;
  margin-left: auto;
  margin-top: 160px;
  margin-left: 1em;
  position: relative;
  left: 1050px;
}

.check-amount-numeric label {
  font-weight: bold;
  margin-right: var(--spacing-xs);
  color: var(--dark-text);
}

.check-amount-words {
  margin-bottom: var(--spacing-lg);
  margin-top: 4px; /* Back to perfect spot */
  padding: var(--spacing-md);
  border: none;
  background-color: transparent;
  border-radius: var(--border-radius);
  min-height: 3rem;
  display: flex;
  align-items: center;
  position: relative;
  left: 100px;
}

.check-amount-words.highlighted {
  background-color: rgba(0, 123, 255, 0.1);
  border-color: var(--primary-color);
}

.check-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

.check-memo {
  flex: 1;
  display: none; /* Remove MEMO */
}

.check-signature {
  flex: 0 0 200px;
  margin-left: var(--spacing-lg);
  text-align: center;
  display: none; /* Remove SIGNATURE */
}

.check-field {
  min-height: 1.5rem;
  padding: var(--spacing-xs) var(--spacing-sm);
  border: 1px dashed var(--border-color);
  background-color: white;
  border-radius: var(--border-radius);
  margin-top: var(--spacing-xs);
  font-size: 0.9rem;
  color: var(--dark-text);
  display: flex;
  align-items: center;
}

.check-template label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--secondary-color);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Error section styling */
#error-section {
  background-color: var(--error-color);
  color: white;
  border-color: var(--error-color);
}

#error-message {
  font-weight: 600;
}

/* Responsive design */
@media (max-width: 768px) {
  header h1 {
    font-size: 1.5rem;
  }

  main {
    padding: var(--spacing-md);
    gap: var(--spacing-md);
  }

  section {
    padding: var(--spacing-md);
  }

  #dollar-amount {
    max-width: 100%;
  }

  #spelled-text,
  #check-text {
    font-size: 1rem;
    padding: var(--spacing-sm);
  }

  .check-template {
    padding: var(--spacing-md);
  }

  .check-header {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .check-payee {
    margin-left: 0;
  }

  .check-amount-numeric {
    max-width: 150px;
  }

  .check-footer {
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: flex-start;
  }

  .check-signature {
    margin-left: 0;
    align-self: flex-end;
  }
}

@media (max-width: 480px) {
  header {
    padding: var(--spacing-md);
  }

  header h1 {
    font-size: 1.25rem;
  }

  main {
    padding: var(--spacing-sm);
  }

  section {
    padding: var(--spacing-sm);
  }

  #input-section {
    gap: var(--spacing-sm);
  }

  #convert-btn {
    width: 100%;
  }
}