/* 
 * Education Planning Model - Main Stylesheet
 * 
 * This stylesheet contains all the styling for the education planning model webpage
 */

/* ===== FONTS ===== */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700&family=Open+Sans:wght@400;600&family=Roboto+Mono&display=swap');

/* ===== VARIABLES ===== */
:root {
  /* Colors - Light Theme */
  --primary-color: #4361ee;
  --secondary-color: #3a0ca3;
  --success-color: #4cc9f0;
  --warning-color: #f72585;
  --light-bg: #f8f9fa;
  --light-text: #212529;
  --light-border: #dee2e6;
  --light-input-bg: #ffffff;
  --light-card-bg: #ffffff;
  
  /* Colors - Dark Theme */
  --dark-bg: #212529;
  --dark-text: #f8f9fa;
  --dark-border: #495057;
  --dark-input-bg: #343a40;
  --dark-card-bg: #343a40;
  
  /* Typography */
  --heading-font: 'Montserrat', sans-serif;
  --body-font: 'Open Sans', sans-serif;
  --mono-font: 'Roboto Mono', monospace;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  
  /* Border Radius */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 1rem;
  
  /* Transitions */
  --transition-speed: 0.3s;
}

/* ===== BASE STYLES ===== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--body-font);
  line-height: 1.6;
  transition: background-color var(--transition-speed), color var(--transition-speed);
}

/* Light Theme (default) */
body {
  background-color: var(--light-bg);
  color: var(--light-text);
}

/* Dark Theme */
body.dark {
  background-color: var(--dark-bg);
  color: var(--dark-text);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--heading-font);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-speed);
}

a:hover {
  text-decoration: underline;
}

/* ===== LAYOUT ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-md);
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -15px;
}

.col {
  flex: 1;
  padding: 0 15px;
}

.col-half {
  flex: 0 0 50%;
  max-width: 50%;
  padding: 0 15px;
}

@media (max-width: 768px) {
  .col-half {
    flex: 0 0 100%;
    max-width: 100%;
  }
  
  .row {
    flex-direction: column;
  }
}

/* ===== HEADER ===== */
.header {
  background-color: var(--primary-color);
  color: white;
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

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

.logo {
  font-family: var(--heading-font);
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
}

.theme-selector {
  background-color: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
}

/* ===== FORM STYLES ===== */
.form-container {
  margin-bottom: var(--spacing-xl);
}

.form-section {
  margin-bottom: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  transition: all var(--transition-speed);
}

.light .form-section {
  background-color: var(--light-card-bg);
  border: 1px solid var(--light-border);
}

.dark .form-section {
  background-color: var(--dark-card-bg);
  border: 1px solid var(--dark-border);
}

.form-section-header {
  padding: var(--spacing-md);
  background-color: var(--primary-color);
  color: white;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.form-section-header h3 {
  margin: 0;
}

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

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
}

.form-control {
  width: 100%;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  transition: border-color var(--transition-speed), background-color var(--transition-speed);
}

.light .form-control {
  border: 1px solid var(--light-border);
  background-color: var(--light-input-bg);
  color: var(--light-text);
}

.dark .form-control {
  border: 1px solid var(--dark-border);
  background-color: var(--dark-input-bg);
  color: var(--dark-text);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
}

.form-row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -10px;
}

.form-col {
  flex: 1;
  padding: 0 10px;
  min-width: 200px;
}

.checkbox-group {
  display: flex;
  align-items: center;
}

.checkbox-group input[type="checkbox"] {
  margin-right: var(--spacing-xs);
}

.range-slider {
  width: 100%;
  margin-top: var(--spacing-xs);
}

.range-value {
  font-family: var(--mono-font);
  margin-left: var(--spacing-sm);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  border: none;
  cursor: pointer;
  font-family: var(--heading-font);
  font-weight: 600;
  text-align: center;
  transition: background-color var(--transition-speed), transform var(--transition-speed);
}

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

.btn:active {
  transform: translateY(1px);
}

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

.btn-primary:hover {
  background-color: #3a56d4;
}

.btn-secondary {
  background-color: var(--secondary-color);
  color: white;
}

.btn-secondary:hover {
  background-color: #2f0a82;
}

.btn-update {
  background-color: var(--success-color);
  color: var(--light-text);
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-update:hover {
  background-color: #3ab7dc;
}

.btn-update i {
  margin-right: var(--spacing-xs);
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 1.1rem;
}

.btn-block {
  display: block;
  width: 100%;
}

/* ===== RESULTS SECTION ===== */
.results-section {
  display: none; /* Initially hidden, shown after form submission */
}

.charts-container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.chart-container {
  flex: 1 1 calc(50% - var(--spacing-md));
  min-width: 300px;
  height: 400px;
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-speed);
}

.light .chart-container {
  background-color: var(--light-card-bg);
  border: 1px solid var(--light-border);
}

.dark .chart-container {
  background-color: var(--dark-card-bg);
  border: 1px solid var(--dark-border);
}

.summary-container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.summary-item {
  flex: 1 1 calc(25% - var(--spacing-md));
  min-width: 200px;
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  text-align: center;
  transition: all var(--transition-speed);
}

.light .summary-item {
  background-color: var(--light-card-bg);
  border: 1px solid var(--light-border);
}

.dark .summary-item {
  background-color: var(--dark-card-bg);
  border: 1px solid var(--dark-border);
}

.summary-item h4 {
  margin-bottom: var(--spacing-xs);
  font-size: 1rem;
}

.summary-value {
  font-family: var(--mono-font);
  font-size: 1.5rem;
  font-weight: 600;
}

.status-funded {
  color: var(--success-color);
}

.status-gap {
  color: var(--warning-color);
}

/* ===== CASH FLOW TABLE ===== */
.table-container {
  overflow-x: auto;
  margin-bottom: var(--spacing-xl);
}

.cash-flow-table {
  width: 100%;
  border-collapse: collapse;
}

.light .cash-flow-table {
  background-color: var(--light-card-bg);
}

.dark .cash-flow-table {
  background-color: var(--dark-card-bg);
}

.cash-flow-table th,
.cash-flow-table td {
  padding: var(--spacing-sm);
  text-align: right;
}

.cash-flow-table th {
  background-color: var(--primary-color);
  color: white;
  font-weight: 600;
  position: sticky;
  top: 0;
}

.light .cash-flow-table tr:nth-child(even) {
  background-color: rgba(0, 0, 0, 0.05);
}

.dark .cash-flow-table tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.05);
}

.light .cash-flow-table td {
  border-bottom: 1px solid var(--light-border);
}

.dark .cash-flow-table td {
  border-bottom: 1px solid var(--dark-border);
}

.positive-value {
  color: var(--success-color);
}

.negative-value {
  color: var(--warning-color);
}

/* ===== TOOLTIPS ===== */
[data-tooltip] {
  position: relative;
  cursor: help;
}

.tooltip {
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--spacing-sm);
  background-color: rgba(0, 0, 0, 0.8);
  color: white;
  border-radius: var(--border-radius-sm);
  font-size: 0.875rem;
  width: 200px;
  text-align: center;
  visibility: hidden;
  opacity: 0;
  transition: opacity var(--transition-speed);
  z-index: 10;
}

.tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: rgba(0, 0, 0, 0.8) transparent transparent transparent;
}

/* ===== NOTIFICATIONS ===== */
.notification {
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: var(--spacing-md);
  background-color: var(--success-color);
  color: white;
  border-radius: var(--border-radius-md);
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
  transform: translateY(100px);
  opacity: 0;
  transition: transform var(--transition-speed), opacity var(--transition-speed);
  z-index: 1000;
}

.notification.show {
  transform: translateY(0);
  opacity: 1;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeIn 0.5s ease forwards;
}

/* ===== FOOTER ===== */
.footer {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-lg) 0;
  text-align: center;
  font-size: 0.875rem;
}

.light .footer {
  border-top: 1px solid var(--light-border);
}

.dark .footer {
  border-top: 1px solid var(--dark-border);
}

/* ===== RESPONSIVE ADJUSTMENTS ===== */
@media (max-width: 992px) {
  .summary-item {
    flex: 1 1 calc(50% - var(--spacing-md));
  }
}

@media (max-width: 768px) {
  .chart-container {
    flex: 1 1 100%;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .form-row {
    flex-direction: column;
  }
  
  .form-col {
    margin-bottom: var(--spacing-md);
  }
}

@media (max-width: 576px) {
  .summary-item {
    flex: 1 1 100%;
  }
  
  .header-content {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
}