:root {
  /* Color Palette - Updated to Blue Theme */
  --bg-main: #F8FAFC;
  --bg-secondary: #EFF6FF;
  --bg-alt: #DBEAFE;
  --header-footer: #1E3A8A; /* Deep Blue */
  --primary: #2563EB; /* Bright Blue */
  --secondary: #1D4ED8; /* Darker Blue */
  --accent: #F59E0B;
  --card-bg: #FFFFFF;
  --border: #93C5FD; /* Blue Border */
  --border-hover: #2563EB; /* Blue Border on Hover */
  --highlight: #EFF6FF;
  
  /* Text Colors */
  --text-main: #0F172A;
  --text-secondary: #334155;
  --text-muted: #64748B;
  
  /* Status Colors */
  --success: #16A34A;
  --warning: #D97706;
  
  /* Button Colors */
  --btn-primary-bg: #2563EB;
  --btn-primary-hover: #1E40AF;
  --btn-sec-bg: #FFFFFF;
  --btn-sec-border: #93C5FD;
  --btn-sec-hover: #1D4ED8;
  
  /* Typography & Layout - Updated for new layout feel */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --border-radius: 12px; /* Sharper corners */
  --transition: all 0.3s ease;
  --shadow-sm: 0 2px 4px rgba(37, 99, 235, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(37, 99, 235, 0.1), 0 2px 4px -1px rgba(37, 99, 235, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(37, 99, 235, 0.1), 0 4px 6px -2px rgba(37, 99, 235, 0.05);
  --max-width: 1320px; /* Wider layout */
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

/* Accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary);
  color: white;
  padding: 8px;
  z-index: 10000;
  transition: top 0.2s;
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  top: 0;
}

:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 3px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 { font-size: 2.75rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

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

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

/* Layout */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 6rem 0;
}

.section-bg-alt {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.grid {
  display: grid;
  gap: 2.5rem;
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

.flex {
  display: flex;
  gap: 1.5rem;
}

.flex-col {
  flex-direction: column;
}

.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.text-center { text-align: center; }

/* Header & Navigation */
.site-header {
  background-color: var(--primary); /* Changed to primary blue */
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
  border-bottom: 4px solid var(--secondary);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo svg {
  display: block;
}

.logo span {
  line-height: 1;
}

.logo:hover {
  text-decoration: none;
  color: var(--bg-alt);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.5rem 0.75rem;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
  background-color: rgba(255,255,255,0.2);
  border-radius: var(--border-radius);
}

.nav-links .btn-primary {
  background-color: #fff;
  color: var(--primary);
}

.nav-links .btn-primary:hover {
  background-color: var(--bg-alt);
  color: var(--secondary);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent; /* Thicker borders for layout shift */
  font-size: 1rem;
  line-height: 1.2;
}

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

.btn-primary {
  background-color: var(--btn-primary-bg);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--btn-primary-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--btn-sec-bg);
  color: var(--primary);
  border-color: var(--btn-sec-border);
}

.btn-secondary:hover {
  border-color: var(--btn-sec-hover);
  color: var(--btn-sec-hover);
  background-color: var(--highlight);
}

.btn-block {
  width: 100%;
}

/* Cards */
.card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  border: 2px solid var(--border); /* Thicker blue border */
  padding: 2.5rem; /* Increased padding */
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.card-icon {
  width: 56px;
  height: 56px;
  background-color: var(--bg-secondary);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.25rem;
  font-weight: bold;
  border: 2px solid var(--border);
}

.card-title {
  margin-bottom: 0.25rem;
  font-size: 1.35rem;
}

.card-body {
  flex: 1;
}

.card-footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 2px solid var(--border);
}

/* Glassmorphism */
.glass-panel {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 2px solid var(--border);
  border-radius: var(--border-radius);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}

/* Comparison Table */
.table-responsive {
  overflow-x: auto;
  border-radius: var(--border-radius);
  border: 2px solid var(--border);
  background: var(--card-bg);
  box-shadow: var(--shadow-sm);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th,
.comparison-table td {
  padding: 1.5rem 1.25rem;
  border-bottom: 2px solid var(--border);
}

.comparison-table th {
  background-color: var(--bg-secondary);
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table tbody tr:hover {
  background-color: var(--highlight);
}

.icon-check { color: var(--primary); font-weight: bold; }
.icon-cross { color: var(--text-muted); }
.icon-partial { color: var(--accent); font-weight: bold; }

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

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  padding: 0.85rem 1.25rem;
  border: 2px solid var(--border);
  border-radius: var(--border-radius);
  font-family: var(--font-family);
  font-size: 1rem;
  transition: var(--transition);
  background-color: var(--bg-main);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
  background-color: var(--card-bg);
}

textarea.form-control {
  resize: vertical;
  min-height: 140px;
}

/* Accordion (FAQ) */
.accordion {
  border: 2px solid var(--border);
  border-radius: var(--border-radius);
  overflow: hidden;
  background: var(--card-bg);
}

.accordion-item {
  border-bottom: 2px solid var(--border);
}

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

.accordion-header {
  width: 100%;
  text-align: left;
  padding: 1.75rem;
  background: none;
  border: none;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.accordion-header:hover {
  background-color: var(--bg-secondary);
  color: var(--primary);
}

.accordion-icon {
  transition: transform 0.3s ease;
  color: var(--primary);
}

.accordion-header[aria-expanded="true"] .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  padding: 0 1.75rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: var(--text-secondary);
}

.accordion-header[aria-expanded="true"] + .accordion-content {
  padding-bottom: 1.75rem;
  max-height: 600px;
}

/* Footer */
.site-footer {
  background-color: var(--header-footer);
  color: #fff;
  padding: 5rem 0 2rem;
  margin-top: auto;
  border-top: 4px solid var(--primary);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-title {
  color: #fff;
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.85rem;
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #fff;
  text-decoration: underline;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.15);
  text-align: center;
  color: rgba(255,255,255,0.6);
  font-size: 0.95rem;
}

.footer-disclaimer {
  margin-top: 1.25rem;
  font-size: 0.85rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

/* Hero Section */
.hero {
  padding: 7rem 0 8rem;
  background: linear-gradient(135deg, var(--bg-alt) 0%, #EFF6FF 100%);
  text-align: center;
  border-bottom: 2px solid var(--border);
}

.hero h1 {
  font-size: clamp(2.25rem, 5vw, 4rem);
  color: var(--header-footer);
  max-width: 900px;
  margin: 0 auto 1.5rem;
  line-height: 1.15;
}

.hero p {
  font-size: 1.25rem;
  max-width: 750px;
  margin: 0 auto 2.5rem;
  color: var(--text-secondary);
}

/* Badges & Tags */
.badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid transparent;
}

.badge-primary { background: var(--bg-alt); color: var(--primary); border-color: var(--border); }
.badge-warning { background: #FEF3C7; color: var(--warning); border-color: #FDE68A; }
.badge-success { background: #DCFCE7; color: var(--success); border-color: #BBF7D0; }

/* Highlights */
.highlight-bg {
  background-color: var(--highlight);
  border-left: 5px solid var(--primary);
  padding: 1.75rem;
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  margin: 2.5rem 0;
  border-top: 2px solid var(--border);
  border-right: 2px solid var(--border);
  border-bottom: 2px solid var(--border);
}

.highlight-bg h3 {
  color: var(--primary);
  margin-bottom: 0.75rem;
  font-size: 1.2rem;
}

/* Cookie Banner */
#cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--card-bg);
  box-shadow: 0 -10px 25px rgba(37, 99, 235, 0.1);
  padding: 1.75rem;
  z-index: 9999;
  display: none;
  border-top: 4px solid var(--primary);
}

.cookie-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.cookie-text {
  flex: 1;
  min-width: 300px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.cookie-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Search and Filter Tools */
.filter-bar {
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  border: 2px solid var(--border);
  margin-bottom: 3rem;
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  align-items: center;
}

/* Responsive */
@media (max-width: 992px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--primary);
    flex-direction: column;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border-bottom: 2px solid var(--secondary);
  }
  
  .nav-links.show {
    display: flex;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero {
    padding: 5rem 0 6rem;
  }
  
  .grid {
    gap: 1.5rem;
  }
}

@media print {
  .site-header, .site-footer, .btn, #cookie-banner, .skip-link, .filter-bar {
    display: none !important;
  }
  body {
    background: #fff;
    color: #000;
  }
  .card, .glass-panel {
    border: 2px solid #ccc;
    box-shadow: none;
    break-inside: avoid;
  }
}