* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.hidden {
  display: none;
}

/* Header Styles */
.header {
    background-color: #003049;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    width: 100%;
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.header-content {
    height: 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-section {
    display: flex;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: white;
    gap: 0.25rem;
}

.logo-icon {
    font-size: 2rem;
    color: white;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: bold;
}

.beta-badge {
    background-color: #3b82f6;
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    margin-left: 0.5rem;
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-link {
  display: flex;
  align-items: center;
  color: white;
  text-decoration: none;
  gap: 0.25rem;
  transition: color 0.2s;
}

.nav-link:hover {
  color: #bfdbfe;
}

/* Main Container */
body {
    background-color: #f5f5f5;
    min-height: 100vh;
    padding-top: 0px;
    margin: 0;
}

.container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    padding: 0 20px;
}

.calculator-wrapper {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 24px;
    position: relative;
    margin-top: 20px;
}

h1 {
    background-color: #fcbf49;
    margin: -24px -24px 24px -24px;
    padding: 16px;
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    color: #333;
    font-size: 24px;
    font-weight: 600;
    text-align: center;
}

/* Form Styles */
.calculator-form {
  padding: 0;
}

.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 16px;
  font-weight: 500;
  color: #333;
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 16px;
  background-color: white;
  color: #333;
  transition: all 0.2s;
}

.form-input:hover {
  border-color: #003049;
  box-shadow: 0 0 0 3px rgba(0, 48, 73, 0.1);
}

.form-input:focus {
  outline: none;
  border-color: #003049;
  box-shadow: 0 0 0 3px rgba(0, 48, 73, 0.1);
}

.form-input.invalid {
  border-color: #dc2626;
}

.form-input.invalid:hover,
.form-input.invalid:focus {
  border-color: #dc2626;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

/* Remove spinners from number inputs */
input[type="number"] {
  -moz-appearance: textfield;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Checkbox Styling */
input[type="checkbox"] {
  width: auto;
  margin-right: 8px;
}

/* Button Group */
.button-group {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.calculate-button,
.reset-button {
  padding: 12px 24px;
  border-radius: 4px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  flex: 1;
}

.calculate-button {
  background-color: #003049;
  color: white;
  border: none;
}

.calculate-button:hover {
  background-color: #00436a;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.reset-button {
  background-color: white;
  color: #333;
  border: 1px solid #ddd;
}

.reset-button:hover {
  background-color: #f5f5f5;
  border-color: #bfdbfe;
}

/* Results Section */
.results {
  background: linear-gradient(to bottom right, #f0f9ff, #e0f2fe);
  border: 1px solid #bae6fd;
  border-radius: 4px;
  padding: 16px;
  margin-top: 24px;
}

.results-header {
  margin-bottom: 16px;
}

.results-title {
  font-size: 18px;
  color: #003049;
  margin: 0;
  font-weight: 600;
  padding-bottom: 8px;
  border-bottom: 2px solid #bae6fd;
}

.results-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.results-item {
  color: #003049;
  font-size: 16px;
}

.results-value {
  font-weight: 500;
  font-size: 16px;
  display: block;
  margin-top: 4px;
}

/* FAQ Section */
.faq-section {
  margin-top: 32px;
  padding: 24px;
  background: white;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.faq-section h2 {
  color: #003049;
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
  text-align: center;
}

.faq-grid {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.faq-item {
  background: linear-gradient(to bottom right, #f0f9ff, #e0f2fe);
  border: 1px solid #bae6fd;
  border-radius: 4px;
  padding: 16px;
}

.faq-question {
  color: #003049;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.faq-answer {
  color: #334155;
  font-size: 16px;
  line-height: 1.5;
}

.faq-answer p {
  margin-bottom: 12px;
}

.faq-answer ul {
  list-style-type: none;
  padding-left: 0;
}

.faq-answer ul li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 8px;
}

.faq-answer ul li::before {
  content: "•";
  position: absolute;
  left: 8px;
  color: #003049;
}

/* Media Queries */
@media (max-width: 640px) {
  .header-container {
        padding: 0 1rem;
    }
    
    .logo-text {
        font-size: 1rem;
    }
    
    .beta-badge {
        font-size: 0.625rem;
        padding: 0.125rem 0.375rem;
    }
    
    .header-content {
        height: 3.5rem;
    }
    
    .calculator-wrapper {
        padding: 16px;
    }
    
    h1 {
        margin: -16px -16px 16px -16px;
        font-size: 20px;
    }

  .results-content {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .faq-section {
    padding: 16px;
    margin-top: 24px;
  }

  .faq-section h2 {
    font-size: 20px;
    margin-bottom: 16px;
  }

  .faq-grid {
    gap: 16px;
  }

  .faq-question {
    font-size: 16px;
  }

  .faq-answer {
    font-size: 14px;
  }

  .button-group {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .header {
    position: fixed;
  }
  
  body {
    padding-top: 3.5rem;
  }
  
  .logo-icon {
    font-size: 1.5rem;
  }

}