:root {
  --uxl-ink-9: #0b1220;
  --uxl-surface-1: rgba(255,255,255,0.72);
  --uxl-surface-2: rgba(255,255,255,0.10);
  --uxl-brand-6: #5b6cff;
  --uxl-accent-6: #22c55e;
  --uxl-warn-6: #f59e0b;
  --uxl-border-1: rgba(255,255,255,0.22);
  --uxl-shadow-1: 0 18px 60px rgba(11,18,32,0.35);
  --uxl-radius-3: 18px;
  --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-size-base: clamp(1rem, 2.5vw, 1.125rem);
  --font-size-lg: clamp(1.25rem, 3vw, 1.5rem);
  --font-size-xl: clamp(1.75rem, 4vw, 2.25rem);
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--uxl-ink-9);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--uxl-brand-6);
  color: white;
  padding: 8px;
  text-decoration: none;
  border-radius: 4px;
  z-index: 1000;
  transition: top 0.3s ease;
}

.skip-link:focus {
  top: 6px;
}

.site-header {
  background: var(--uxl-surface-1);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--uxl-border-1);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--uxl-shadow-1);
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
}

.site-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--uxl-brand-6);
  text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
}

.main-nav a {
  text-decoration: none;
  color: var(--uxl-ink-9);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--uxl-radius-3);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.main-nav a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  transition: left 0.5s ease;
}

.main-nav a:hover::before {
  left: 100%;
}

.main-nav a:hover {
  background: var(--uxl-surface-2);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.main-nav a:focus-visible {
  outline: 2px solid var(--uxl-brand-6);
  outline-offset: 2px;
}

.main-nav a[aria-current="page"] {
  background: var(--uxl-brand-6);
  color: white;
}

.breadcrumbs {
  background: var(--uxl-surface-2);
  padding: var(--spacing-xs) 0;
  border-bottom: 1px solid var(--uxl-border-1);
}

.breadcrumbs ol {
  display: flex;
  list-style: none;
  gap: var(--spacing-xs);
  align-items: center;
}

.breadcrumbs li:not(:last-child)::after {
  content: '>';
  margin-left: var(--spacing-xs);
  color: var(--uxl-ink-9);
  opacity: 0.6;
}

.breadcrumbs a {
  color: var(--uxl-brand-6);
  text-decoration: none;
  transition: color 0.3s ease;
}

.breadcrumbs a:hover {
  color: var(--uxl-accent-6);
  text-decoration: underline;
}

.main-content {
  flex: 1;
  padding: var(--spacing-lg) 0;
}

.hero {
  background: var(--uxl-surface-1);
  backdrop-filter: blur(15px);
  border-radius: var(--uxl-radius-3);
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--uxl-shadow-1);
  border: 1px solid var(--uxl-border-1);
}

.hero h2 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
  color: var(--uxl-brand-6);
  text-align: center;
}

.hero p {
  font-size: var(--font-size-lg);
  text-align: center;
  opacity: 0.9;
}

.intro-content {
  background: var(--uxl-surface-1);
  backdrop-filter: blur(12px);
  border-radius: var(--uxl-radius-3);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--uxl-shadow-1);
  border: 1px solid var(--uxl-border-1);
}

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

.intro-content p:last-child {
  margin-bottom: 0;
}

section:not(.hero):not(.intro-content) {
  background: var(--uxl-surface-1);
  backdrop-filter: blur(10px);
  border-radius: var(--uxl-radius-3);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  box-shadow: 0 8px 32px rgba(11,18,32,0.2);
  border: 1px solid var(--uxl-border-1);
}

section h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
  color: var(--uxl-brand-6);
  position: relative;
}

section h3::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--uxl-brand-6), var(--uxl-accent-6));
  border-radius: 2px;
}

.table-wrapper {
  overflow-x: auto;
  margin: var(--spacing-md) 0;
  border-radius: var(--uxl-radius-3);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--uxl-surface-1);
  backdrop-filter: blur(8px);
}

table caption {
  padding: var(--spacing-sm);
  font-weight: 600;
  color: var(--uxl-brand-6);
  background: var(--uxl-surface-2);
  border-radius: var(--uxl-radius-3) var(--uxl-radius-3) 0 0;
}

table th {
  background: var(--uxl-brand-6);
  color: white;
  padding: var(--spacing-sm);
  text-align: left;
  font-weight: 600;
  position: relative;
}

table th::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--uxl-accent-6);
}

table td {
  padding: var(--spacing-sm);
  border-bottom: 1px solid var(--uxl-border-1);
  transition: background-color 0.3s ease;
}

table tbody tr:hover td {
  background: var(--uxl-surface-2);
}

table tbody tr:nth-child(even) td {
  background: rgba(255,255,255,0.05);
}

.faq-list {
  display: grid;
  gap: var(--spacing-sm);
}

details.faq-item {
  background: var(--uxl-surface-2);
  border-radius: var(--uxl-radius-3);
  border: 1px solid var(--uxl-border-1);
  overflow: hidden;
  transition: all 0.3s ease;
}

details.faq-item:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  transform: translateY(-1px);
}

details.faq-item[open] {
  background: var(--uxl-surface-1);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

summary.faq-item summary,
details.faq-item summary {
  padding: var(--spacing-md);
  cursor: pointer;
  font-weight: 600;
  color: var(--uxl-brand-6);
  background: linear-gradient(135deg, var(--uxl-surface-1), var(--uxl-surface-2));
  transition: all 0.3s ease;
  position: relative;
}

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

details.faq-item summary::after {
  content: '+';
  position: absolute;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5em;
  transition: transform 0.3s ease;
}

details.faq-item[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

details.faq-item summary:hover {
  background: linear-gradient(135deg, var(--uxl-surface-2), var(--uxl-surface-1));
}

details.faq-item summary:focus-visible {
  outline: 2px solid var(--uxl-accent-6);
  outline-offset: -2px;
}

.faq-answer {
  padding: var(--spacing-md);
  border-top: 1px solid var(--uxl-border-1);
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.auth-links,
.resource-links,
.compliance-links {
  list-style: none;
  display: grid;
  gap: var(--spacing-sm);
}

.auth-links li,
.resource-links li,
.compliance-links li {
  background: var(--uxl-surface-2);
  border-radius: var(--uxl-radius-3);
  transition: all 0.3s ease;
}

.auth-links li:hover,
.resource-links li:hover,
.compliance-links li:hover {
  background: var(--uxl-surface-1);
  transform: translateX(8px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.auth-links a,
.resource-links a,
.compliance-links a {
  display: block;
  padding: var(--spacing-md);
  text-decoration: none;
  color: var(--uxl-brand-6);
  font-weight: 500;
  transition: color 0.3s ease;
}

.auth-links a:hover,
.resource-links a:hover,
.compliance-links a:hover {
  color: var(--uxl-accent-6);
}

.auth-links a:focus-visible,
.resource-links a:focus-visible,
.compliance-links a:focus-visible {
  outline: 2px solid var(--uxl-accent-6);
  outline-offset: -2px;
  border-radius: var(--uxl-radius-3);
}

.site-footer {
  background: var(--uxl-surface-1);
  backdrop-filter: blur(15px);
  border-top: 1px solid var(--uxl-border-1);
  margin-top: var(--spacing-xl);
  padding: var(--spacing-lg) 0;
  box-shadow: 0 -8px 32px rgba(11,18,32,0.2);
}

.site-footer .container {
  display: grid;
  gap: var(--spacing-md);
  text-align: center;
}

.footer-nav ul {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  list-style: none;
  flex-wrap: wrap;
}

.footer-nav a {
  color: var(--uxl-brand-6);
  text-decoration: none;
  padding: var(--spacing-xs);
  border-radius: 4px;
  transition: all 0.3s ease;
}

.footer-nav a:hover {
  color: var(--uxl-accent-6);
  background: var(--uxl-surface-2);
}

.footer-nav a:focus-visible {
  outline: 2px solid var(--uxl-accent-6);
  outline-offset: 2px;
}

address {
  font-style: normal;
  opacity: 0.8;
  line-height: 1.4;
}

@media (max-width: 720px) {
  .site-header .container {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .main-nav ul {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .hero,
  .intro-content,
  section:not(.hero):not(.intro-content) {
    padding: var(--spacing-md);
  }
  
  .table-wrapper {
    font-size: 0.875rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .auth-links,
  .resource-links,
  .compliance-links {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
  
  .site-footer .container {
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    text-align: left;
  }
  
  .site-footer .container > p {
    text-align: center;
  }
  
  .site-footer address {
    text-align: right;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  html {
    scroll-behavior: auto;
  }
}