/* Import Premium Fonts */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

/* Color Variables & Themes */
:root {
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;

  /* Light Theme Colors */
  --bg-primary: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-alt: #f1f5f9;
  --border-color: #e2e8f0;
  
  --color-primary: #1d4ed8; /* FHA Federal Blue */
  --color-primary-hover: #1e40af;
  --color-primary-light: #eff6ff;
  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #64748b;
  
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-danger-light: #fef2f2;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

:root.dark {
  /* Dark Theme Colors */
  --bg-primary: #090d16;
  --bg-surface: #111827;
  --bg-surface-alt: #1f2937;
  --border-color: #374151;
  
  --color-primary: #3b82f6; /* Brighter federal blue for dark mode contrast */
  --color-primary-hover: #60a5fa;
  --color-primary-light: rgba(59, 130, 246, 0.1);
  --color-text-primary: #f9fafb;
  --color-text-secondary: #d1d5db;
  --color-text-muted: #9ca3af;
  
  --color-success: #34d399;
  --color-warning: #fbbf24;
  --color-danger: #f87171;
  --color-danger-light: rgba(248, 113, 113, 0.08);
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.5);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.4), 0 8px 10px -6px rgb(0 0 0 / 0.4);
}

/* Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  -webkit-font-smoothing: antialiased;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--radius-sm);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-primary);
  font-weight: 700;
  line-height: 1.25;
}

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

a:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

/* Header & Navigation Styles */
.header-wrapper {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 2rem;
}

@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.025em;
  text-decoration: none;
}

.brand-dot {
  color: var(--color-success);
}

/* Nav Menu styled like /fgts/ page */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--bg-surface-alt);
  padding: 0.35rem;
  border-radius: var(--radius-md);
  margin-left: auto;
}

@media (max-width: 768px) {
  .nav-menu {
    margin-left: 0;
    width: 100%;
    justify-content: space-around;
  }
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text-primary);
  text-decoration: none;
}

.nav-link.active {
  background-color: var(--bg-surface);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

/* Dark Mode Toggle Button */
.theme-toggle {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--color-text-secondary);
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background-color: var(--bg-surface-alt);
  color: var(--color-text-primary);
  border-color: var(--color-text-muted);
}

.theme-toggle svg {
  width: 1.25rem;
  height: 1.25rem;
  fill: currentColor;
}

.theme-toggle .moon-icon {
  display: none;
}

:root.dark .theme-toggle .sun-icon {
  display: none;
}

:root.dark .theme-toggle .moon-icon {
  display: block;
}

/* Page Layout */
.main-wrapper {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

@media (max-width: 768px) {
  .main-wrapper {
    padding: 1.5rem 1rem;
  }
}

/* Back Link style */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
}

.back-link:hover {
  color: var(--color-primary);
  text-decoration: none;
}

/* Hero Section */
.hero {
  margin-bottom: 2.5rem;
  text-align: left;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 720px;
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }
  .hero p {
    font-size: 1rem;
  }
}

/* Two-column layout grid for calculator */
.calculator-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2rem;
  align-items: start;
  margin-bottom: 3rem;
}

@media (max-width: 1024px) {
  .calculator-grid {
    grid-template-columns: 1fr;
  }
}

/* Cards setup */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

@media (max-width: 768px) {
  .card {
    padding: 1.5rem;
  }
}

.card-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}

/* Form Styles */
.form-section-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin: 1.5rem 0 1rem 0;
  text-transform: uppercase;
  font-family: var(--font-heading);
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
}

.form-section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background-color: var(--border-color);
  margin-left: 0.75rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.label-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.info-tooltip {
  cursor: help;
  color: var(--color-text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

.info-tooltip:hover {
  color: var(--color-primary);
}

/* Input boxes and Icons */
.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 1rem;
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 1.1rem;
  pointer-events: none;
}

.input-wrapper input[type="text"],
.input-wrapper input[type="number"] {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.2rem;
  font-size: 1.1rem;
  font-weight: 600;
  font-family: var(--font-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--bg-primary);
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
}

/* For inputs without icon */
.input-wrapper.no-icon input {
  padding-left: 1rem;
}

.input-wrapper input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  background-color: var(--bg-surface);
}

/* Warning message alert */
.alert-warning {
  background-color: var(--color-danger-light);
  border: 1px solid var(--color-danger);
  color: var(--color-danger);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  margin-top: 0.5rem;
  display: none;
  align-items: center;
  gap: 0.5rem;
}

/* Sync Layout (Percentage/Dollar side by side) */
.input-sync-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 1rem;
}

/* Slider Controls */
.slider-container {
  margin-top: 0.75rem;
}

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-alt);
  outline: none;
  transition: background var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 2px solid var(--bg-surface);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  background: var(--color-primary-hover);
}

/* Toggle Switch / Segmented Controls */
.segmented-control {
  display: flex;
  background-color: var(--bg-surface-alt);
  padding: 0.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  gap: 0.25rem;
}

.segment-btn {
  flex: 1;
  background: none;
  border: none;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  padding: 0.6rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.segment-btn:hover {
  color: var(--color-text-primary);
}

.segment-btn.active {
  background-color: var(--bg-surface);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

/* Grid of Score ranges */
.score-toggle-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
}

@media (max-width: 480px) {
  .score-toggle-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Results Card Design */
.results-card {
  position: sticky;
  top: 5rem;
}

.result-header {
  text-align: center;
  margin-bottom: 2rem;
}

.result-total-label {
  font-size: 0.9rem;
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.result-total-value {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.1;
  font-family: var(--font-heading);
  margin-top: 0.25rem;
}

/* Chart block */
.chart-container {
  position: relative;
  width: 100%;
  max-width: 260px;
  height: 260px;
  margin: 0 auto 2rem auto;
}

/* List details */
.payment-details-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.payment-detail-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 0.75rem;
  border-bottom: 1px dashed var(--border-color);
}

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

.detail-label-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.detail-color-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}

.detail-label {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

.detail-value {
  font-weight: 700;
  font-size: 1rem;
}

/* Additional items block (UFMIP details, Loan totals) */
.totals-block {
  background-color: var(--bg-primary);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 480px) {
  .totals-block {
    grid-template-columns: 1fr;
  }
}

.total-item {
  display: flex;
  flex-direction: column;
}

.total-item-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 600;
  text-transform: uppercase;
}

.total-item-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

/* MIP Cancellation Info block */
.mip-banner {
  background-color: var(--color-primary-light);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-top: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.mip-banner-icon {
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.mip-banner-text {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.4;
}

.mip-banner-text strong {
  color: var(--color-text-primary);
}

/* Comparison Section Styles */
.comparison-section {
  margin-top: 3rem;
  margin-bottom: 4rem;
}

.section-header-group {
  margin-bottom: 1.5rem;
}

.section-header-group h2 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.section-header-group p {
  color: var(--color-text-secondary);
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .comparison-grid {
    grid-template-columns: 1fr;
  }
}

.comparison-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.comparison-card.fha-comp {
  border-left: 4px solid var(--color-primary);
}

.comparison-card.conv-comp {
  border-left: 4px solid var(--color-success);
}

.comp-badge {
  display: inline-block;
  align-self: flex-start;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.fha-comp .comp-badge {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.conv-comp .comp-badge {
  background-color: #ecfdf5;
  color: var(--color-success);
}

:root.dark .conv-comp .comp-badge {
  background-color: rgba(16, 185, 129, 0.1);
}

.comp-price-title {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
}

.comp-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex: 1;
}

.comp-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.comp-row:last-child {
  border-bottom: none;
}

.comp-label {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.comp-value {
  font-weight: 700;
  font-size: 1.05rem;
}

/* FAQ & SEO Content Section */
.seo-section {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 3rem;
  margin-bottom: 4rem;
  box-shadow: var(--shadow-md);
}

@media (max-width: 768px) {
  .seo-section {
    padding: 2rem 1.5rem;
  }
}

.seo-section h2 {
  font-size: 2.25rem;
  margin-bottom: 2rem;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 1rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.seo-section h3 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.seo-section p {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.seo-section ul, .seo-section ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
}

.seo-section li {
  margin-bottom: 0.5rem;
}

.seo-section strong {
  color: var(--color-text-primary);
}

.seo-quote-box {
  background-color: var(--bg-surface-alt);
  border-left: 4px solid var(--color-primary);
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.5rem 0;
}

.seo-quote-box p {
  margin-bottom: 0;
  font-style: italic;
}

.faq-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.faq-item {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.faq-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.faq-question {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.75rem;
}

.faq-answer {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* Footer Section */
footer {
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  padding: 3rem 1.5rem;
  text-align: center;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
}

.footer-logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  font-weight: 600;
}

.footer-links a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.footer-disclaimer {
  max-width: 720px;
  margin: 0 auto 1.5rem auto;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.copyright {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}