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

:root {
  --color-primary: #0066CC;
  --color-primary-dark: #004C99;
  --color-primary-light: #E6F2FF;
  --color-secondary: #00A3A3;
  --color-accent: #FF6B35;
  --color-text: #1A1A2E;
  --color-text-light: #4A4A6A;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F8FAFC;
  --color-border: #E2E8F0;
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --transition: 0.2s ease;
}

html {
  scroll-behavior: smooth;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.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 */
.site-header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
  background: rgba(255,255,255,0.95);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-primary-dark);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo svg {
  flex-shrink: 0;
}

.main-nav {
  display: flex;
  gap: 24px;
}

.main-nav a {
  text-decoration: none;
  color: var(--color-text-light);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition);
}

.main-nav a:hover {
  color: var(--color-primary);
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-secondary) 100%);
  color: white;
  padding: 64px 0;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

/* Guide Panel */
.guide-panel {
  padding: 48px 0;
  background: var(--color-bg-alt);
}

.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.control-label {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.control-input {
  padding: 12px 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%234A4A6A' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.control-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0,102,204,0.15);
}

.control-input:hover {
  border-color: var(--color-primary);
}

/* Results Area */
.results-area {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
  min-height: 200px;
}

.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--color-text-light);
}

.empty-icon {
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state h3 {
  color: var(--color-text);
  margin-bottom: 8px;
}

/* Checklist Results */
.checklist-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--color-border);
}

.checklist-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary-dark);
}

.checklist-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.checklist-actions {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--color-bg-alt);
  color: var(--color-text);
  border: 2px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn svg {
  width: 18px;
  height: 18px;
}

/* Checklist Sections */
.checklist-section {
  margin-bottom: 28px;
}

.checklist-section-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.checklist-section-title .icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.checklist-items {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 16px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--color-primary);
}

.checklist-item.optional {
  border-left-color: var(--color-warning);
}

.checklist-item input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.checklist-item label {
  flex: 1;
  cursor: pointer;
  font-size: 0.95rem;
  line-height: 1.5;
}

.checklist-item .item-detail {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-top: 4px;
}

.checklist-item.checked label {
  text-decoration: line-through;
  opacity: 0.6;
}

/* Fee Breakdown */
.fee-breakdown {
  background: var(--color-primary-light);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-top: 20px;
}

.fee-breakdown h4 {
  font-size: 1rem;
  margin-bottom: 12px;
  color: var(--color-primary-dark);
}

.fee-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid rgba(0,102,204,0.1);
  font-size: 0.9rem;
}

.fee-row:last-child {
  border-bottom: none;
  font-weight: 700;
  font-size: 1rem;
  padding-top: 12px;
  margin-top: 4px;
  border-top: 2px solid var(--color-primary);
}

/* Progress Bar */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 8px;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  border-radius: 4px;
  transition: width 0.3s ease;
}

.progress-text {
  font-size: 0.85rem;
  color: var(--color-text-light);
  text-align: right;
}

/* Info Sections */
.info-section {
  padding: 56px 0;
}

.info-section:nth-child(even) {
  background: var(--color-bg-alt);
}

.info-section h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 32px;
  color: var(--color-text);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.info-card {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.info-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.info-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-primary-dark);
}

.info-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

/* Quirks Table */
.quirks-table-wrapper {
  overflow-x: auto;
}

.quirks-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.quirks-table th {
  background: var(--color-primary-dark);
  color: white;
  padding: 14px 20px;
  text-align: left;
  font-weight: 600;
}

.quirks-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-border);
}

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

.quirks-table tr:hover {
  background: var(--color-primary-light);
}

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-item summary {
  padding: 18px 24px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--color-primary);
  font-weight: 400;
  transition: transform var(--transition);
}

.faq-item[open] summary::after {
  content: '−';
}

.faq-item summary:hover {
  background: var(--color-bg-alt);
}

.faq-item p {
  padding: 0 24px 18px;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* Why Section */
.why-content {
  max-width: 700px;
}

.why-content p {
  margin-bottom: 16px;
  color: var(--color-text-light);
  font-size: 1.05rem;
  line-height: 1.8;
}

/* Footer */
.site-footer {
  background: var(--color-text);
  color: rgba(255,255,255,0.7);
  padding: 32px 0;
  font-size: 0.9rem;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-content a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-content a:hover {
  color: white;
}

.footer-nav {
  display: flex;
  gap: 20px;
}

/* Print Styles */
@media print {
  .site-header,
  .site-footer,
  .checklist-actions,
  .hero,
  .info-section,
  .controls-grid {
    display: none !important;
  }

  .guide-panel {
    padding: 0;
  }

  .results-area {
    box-shadow: none;
    padding: 0;
  }

  .checklist-item input[type="checkbox"] {
    display: none;
  }

  body {
    font-size: 12pt;
  }
}

/* Responsive */
@media (max-width: 768px) {
  .site-header .container {
    height: 56px;
  }

  .logo span {
    font-size: 1.1rem;
  }

  .main-nav {
    gap: 16px;
  }

  .main-nav a {
    font-size: 0.85rem;
  }

  .hero {
    padding: 40px 0;
  }

  .controls-grid {
    grid-template-columns: 1fr;
  }

  .results-area {
    padding: 20px;
  }

  .checklist-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .info-section {
    padding: 40px 0;
  }

  .info-section h2 {
    font-size: 1.5rem;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .checklist-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}


/* Factory-injected deployment helpers. The AI owns the site design above this block. */
.ad-unit {
  width: min(100%, 720px);
  min-height: 120px;
  margin: 24px auto;
  display: block;
}

.legal-page {
  width: min(900px, calc(100% - 32px));
  margin: 40px auto;
}

.factory-fallback-nav {
  width: min(900px, calc(100% - 32px));
  margin: 24px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  font-size: 0.95rem;
}

.factory-fallback-nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}