/**
 * Calculator Common CSS
 * Provides shared styles for all financial calculators
 */

:root {
  /* Light mode colors */
  --calc-bg-color: #ffffff;
  --calc-text-color: #333333;
  --calc-border-color: #e0e0e0;
  --calc-input-bg: #f5f5f5;
  --calc-input-border: #cccccc;
  --calc-button-primary: #4caf50;
  --calc-button-primary-hover: #45a049;
  --calc-button-secondary: #f0f0f0;
  --calc-button-secondary-hover: #e8e8e8;
  --calc-accent-color: #2196f3;
  --calc-disabled-color: #dddddd;
  --calc-table-header-bg: #f5f5f5;
  --calc-table-border: #e0e0e0;
  --calc-chart-grid: #e0e0e0;
  --calc-investment-color: #4caf50;
  --calc-returns-color: #2196f3;
  --calc-total-color: #ff9800;
  --calc-shadow-color: rgba(0, 0, 0, 0.1);
}

@media (prefers-color-scheme: dark) {
  :root {
    /* Dark mode colors */
    --calc-bg-color: #222222;
    --calc-text-color: #f0f0f0;
    --calc-border-color: #444444;
    --calc-input-bg: #333333;
    --calc-input-border: #555555;
    --calc-button-primary: #388e3c;
    --calc-button-primary-hover: #2e7d32;
    --calc-button-secondary: #444444;
    --calc-button-secondary-hover: #555555;
    --calc-accent-color: #1976d2;
    --calc-disabled-color: #444444;
    --calc-table-header-bg: #333333;
    --calc-table-border: #444444;
    --calc-chart-grid: #444444;
    --calc-investment-color: #4caf50;
    --calc-returns-color: #2196f3;
    --calc-total-color: #ff9800;
    --calc-shadow-color: rgba(0, 0, 0, 0.3);
  }
}

/* Calculator Container */
.financial-calculator {
  font-family: 'Roboto', Arial, sans-serif;
  max-width: 1000px;
  margin: 0 auto 40px;
  padding: 20px;
  background-color: var(--calc-bg-color);
  color: var(--calc-text-color);
  border-radius: 8px;
  box-shadow: 0 4px 12px var(--calc-shadow-color);
}

/* Calculator Header */
.calculator-header {
  margin-bottom: 30px;
  text-align: center;
}

.calculator-header h2 {
  font-size: 28px;
  margin-bottom: 10px;
  font-weight: 700;
  color: var(--calc-text-color);
}

.calculator-header p {
  font-size: 16px;
  color: var(--calc-text-color);
  opacity: 0.8;
}

/* Calculator Form */
.calculator-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.calculator-form.single-column {
  grid-template-columns: 1fr;
}

.form-group {
  margin-bottom: 15px;
  position: relative;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 15px;
}

.form-group input[type="number"],
.form-group input[type="text"],
.form-group select {
  width: 100%;
  padding: 10px 15px;
  border: 1px solid var(--calc-input-border);
  border-radius: 4px;
  background-color: var(--calc-input-bg);
  color: var(--calc-text-color);
  font-size: 15px;
}

.form-group input[type="range"] {
  width: 100%;
  margin-top: 10px;
  background-color: var(--calc-input-bg);
}

/* Checkbox and Radio Styles */
.form-group.checkbox-group {
  display: flex;
  align-items: center;
  margin-top: 15px;
}

.form-group.checkbox-group label {
  margin-bottom: 0;
  margin-left: 10px;
  cursor: pointer;
}

.form-group.checkbox-group input[type="checkbox"],
.form-group.checkbox-group input[type="radio"] {
  cursor: pointer;
}

/* Button Styles */
.calculator-buttons {
  display: flex;
  justify-content: center;
  margin: 25px 0;
}

button.calc-button {
  padding: 12px 25px;
  font-size: 16px;
  font-weight: 500;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.1s;
}

button.calc-button:hover {
  transform: translateY(-2px);
}

button.calc-button:active {
  transform: translateY(0);
}

button.primary-button {
  background-color: var(--calc-button-primary);
  color: white;
}

button.primary-button:hover {
  background-color: var(--calc-button-primary-hover);
}

button.secondary-button {
  background-color: var(--calc-button-secondary);
  color: var(--calc-text-color);
  margin-left: 10px;
}

button.secondary-button:hover {
  background-color: var(--calc-button-secondary-hover);
}

/* Results Section */
.calculator-results {
  display: none;
  margin-top: 30px;
  padding: 20px;
  border: 1px solid var(--calc-border-color);
  border-radius: 8px;
  background-color: var(--calc-bg-color);
}

.calculator-results h3 {
  margin-bottom: 15px;
  font-size: 20px;
  text-align: center;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 15px;
  margin-bottom: 20px;
}

.result-item {
  padding: 15px;
  border: 1px solid var(--calc-border-color);
  border-radius: 5px;
  text-align: center;
}

.result-item h4 {
  font-size: 14px;
  margin-bottom: 10px;
  color: var(--calc-text-color);
  opacity: 0.9;
}

.result-item p {
  font-size: 18px;
  font-weight: 700;
  margin: 0;
  color: var(--calc-accent-color);
}

/* Chart Section */
.calculator-chart {
  margin-top: 30px;
  margin-bottom: 30px;
}

.chart-container {
  position: relative;
  height: 300px;
  width: 100%;
}

/* Breakdown Section */
.calculator-breakdown {
  display: none;
  margin-top: 30px;
}

.calculator-breakdown h3 {
  margin-bottom: 15px;
  font-size: 20px;
  text-align: center;
}

.breakdown-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 30px;
}

.breakdown-table th,
.breakdown-table td {
  padding: 12px 15px;
  text-align: right;
  border: 1px solid var(--calc-table-border);
}

.breakdown-table th {
  background-color: var(--calc-table-header-bg);
  font-weight: 600;
}

.breakdown-table tr:nth-child(even) {
  background-color: var(--calc-bg-color);
}

.breakdown-table tr:nth-child(odd) {
  background-color: var(--calc-input-bg);
}

/* Action Buttons */
.calculator-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 25px;
}

.calculator-actions button {
  display: flex;
  align-items: center;
  gap: 8px;
}

.calculator-actions svg {
  width: 18px;
  height: 18px;
}

/* History Section */
.calculator-history {
  margin-top: 30px;
}

.calculator-history h3 {
  margin-bottom: 15px;
  font-size: 20px;
  text-align: center;
}

.history-list {
  list-style: none;
  padding: 0;
  margin: 0;
  max-height: 300px;
  overflow-y: auto;
  border: 1px solid var(--calc-border-color);
  border-radius: 5px;
}

.history-item {
  padding: 12px 15px;
  border-bottom: 1px solid var(--calc-border-color);
  cursor: pointer;
  transition: background-color 0.2s;
}

.history-item:last-child {
  border-bottom: none;
}

.history-item:hover {
  background-color: var(--calc-input-bg);
}

.history-item-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 5px;
}

.history-date {
  font-size: 12px;
  color: var(--calc-text-color);
  opacity: 0.7;
}

.history-details {
  font-size: 14px;
}

.history-empty {
  padding: 15px;
  text-align: center;
  color: var(--calc-text-color);
  opacity: 0.7;
}

.clear-history {
  display: block;
  margin: 15px auto 0;
  padding: 8px 15px;
  font-size: 14px;
  background-color: var(--calc-button-secondary);
  color: var(--calc-text-color);
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.clear-history:hover {
  background-color: var(--calc-button-secondary-hover);
}

/* Info Section */
.calculator-info {
  margin-top: 40px;
  padding: 20px;
  border: 1px solid var(--calc-border-color);
  border-radius: 8px;
  background-color: var(--calc-bg-color);
}

.calculator-info h3 {
  margin-bottom: 15px;
  font-size: 20px;
}

.calculator-info p {
  margin-bottom: 10px;
  line-height: 1.6;
}

.calculator-info ul {
  padding-left: 20px;
  margin-bottom: 15px;
}

.calculator-info ul li {
  margin-bottom: 8px;
  line-height: 1.6;
}

/* Responsive styles */
@media (max-width: 768px) {
  .financial-calculator {
    padding: 15px;
  }
  
  .calculator-form {
    grid-template-columns: 1fr;
  }
  
  .results-grid {
    grid-template-columns: 1fr;
  }
  
  .calculator-actions {
    flex-direction: column;
  }
  
  .calculator-actions button {
    width: 100%;
  }
  
  .breakdown-table {
    font-size: 14px;
  }
  
  .breakdown-table th,
  .breakdown-table td {
    padding: 8px;
  }
}