:root {
  --color-bg: #0a0b10;
  --color-surface: rgba(20, 22, 33, 0.6);
  --color-glass: rgba(255, 255, 255, 0.05);
  --color-glass-border: rgba(255, 255, 255, 0.1);
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-neon-primary: #00f0ff;
  --color-neon-secondary: #b026ff;
  
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  
  --space-4: 4px;
  --space-8: 8px;
  --space-12: 12px;
  --space-16: 16px;
  --space-24: 24px;
  --space-40: 40px;
  --space-64: 64px;

  --header-height-desk: 64px;
  --header-height-mob: 52px;
  --radius: 12px;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  lang: en;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6, .nav-brand {
  margin-top: 0;
  margin-bottom: var(--space-16);
  line-height: 1.2;
  overflow-wrap: anywhere;
  color: #ffffff;
}

a {
  color: var(--color-neon-primary);
  text-decoration: none;
  transition: color 0.2s ease, text-shadow 0.2s ease;
}

a:hover, a:focus {
  color: #ffffff;
  text-shadow: 0 0 8px var(--color-neon-primary);
}

:focus-visible {
  outline: 2px solid var(--color-neon-secondary);
  outline-offset: 4px;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Glassmorphism Utilities */
.glass-panel {
  background: var(--color-surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius);
}

.neon-border {
  position: relative;
  border-radius: var(--radius);
  background: var(--color-bg);
  background-clip: padding-box;
  border: 1px solid transparent;
}
.neon-border::before {
  content: "";
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  z-index: -1;
  margin: -1px;
  border-radius: inherit;
  background: linear-gradient(45deg, var(--color-neon-primary), var(--color-neon-secondary));
  opacity: 0.7;
}

/* Header */
.site-header {
  height: var(--header-height-desk);
  background: rgba(10, 11, 16, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-glass-border);
  display: flex;
  align-items: center;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-24);
  min-width: 0;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  width: 100%;
  min-width: 0;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  font-weight: 700;
  font-size: 1.25rem;
  color: #fff;
  margin: 0;
  z-index: 100;
}

.main-nav {
  display: flex;
  gap: var(--space-24);
  align-items: center;
}

.main-nav a {
  color: var(--color-text);
  font-weight: 500;
}

.main-nav a:hover, .main-nav a:focus {
  color: var(--color-neon-primary);
  text-shadow: none;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  z-index: 100;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-16);
  background: linear-gradient(90deg, var(--color-neon-primary), var(--color-neon-secondary));
  color: var(--color-bg);
  font-weight: 700;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover, .btn:focus {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 240, 255, 0.3);
  color: var(--color-bg);
  text-shadow: none;
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-glass-border);
}
.btn-outline:hover, .btn-outline:focus {
  background: var(--color-glass);
  color: #fff;
  box-shadow: none;
  transform: none;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  padding: var(--space-8);
  z-index: 100;
}
.mobile-toggle svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

/* Layout */
main {
  flex: 1;
  padding: var(--space-64) 0;
}

section {
  margin-bottom: var(--space-64);
}

.hero {
  padding: var(--space-64) var(--space-24);
  text-align: center;
  margin-bottom: var(--space-64);
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: var(--space-24);
  background: linear-gradient(90deg, #fff, var(--color-neon-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto var(--space-40);
}

/* Glass Overlay Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-40);
  min-width: 0;
}

.glass-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  aspect-ratio: 4/5;
  text-decoration: none;
  color: inherit;
  transition: transform 0.3s ease;
  min-width: 0;
}

.glass-card:hover, .glass-card:focus-within {
  transform: translateY(-8px);
}

.glass-card img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  transition: transform 0.5s ease;
}

.glass-card:hover img, .glass-card:focus-within img {
  transform: scale(1.05);
}

.card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
  padding: var(--space-24);
  background: rgba(10, 11, 16, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-glass-border);
  min-width: 0;
}

.card-overlay h3 {
  margin-bottom: var(--space-8);
  font-size: 1.25rem;
  color: #fff;
}
.card-overlay p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Article Layout */
.article-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-64);
}
.article-header h1 {
  font-size: 2.5rem;
  margin-bottom: var(--space-24);
}
.article-meta {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.article-content {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.1rem;
  padding: var(--space-40);
}
.article-content h2 {
  margin-top: var(--space-64);
  margin-bottom: var(--space-24);
  font-size: 1.75rem;
  border-bottom: 1px solid var(--color-glass-border);
  padding-bottom: var(--space-8);
}
.article-content h3 {
  margin-top: var(--space-40);
  margin-bottom: var(--space-16);
  font-size: 1.25rem;
}
.article-content p, .article-content ul, .article-content ol {
  margin-bottom: var(--space-24);
}
.article-content li {
  margin-bottom: var(--space-8);
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-24);
}
.table-wrapper {
  overflow-x: auto;
  margin-bottom: var(--space-24);
}
.article-content th, .article-content td {
  padding: var(--space-12) var(--space-16);
  border: 1px solid var(--color-glass-border);
  text-align: left;
}
.article-content th {
  background: var(--color-surface);
  color: #fff;
}
.article-image-wrapper {
  margin: var(--space-40) 0;
  border-radius: var(--radius);
  overflow: hidden;
}

/* Forms */
.form-group {
  margin-bottom: var(--space-24);
}
.form-group label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: 500;
}
.form-control {
  width: 100%;
  padding: var(--space-12) var(--space-16);
  background: var(--color-bg);
  border: 1px solid var(--color-glass-border);
  border-radius: 4px;
  color: var(--color-text);
  font-family: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.form-control:focus {
  outline: none;
  border-color: var(--color-neon-primary);
  box-shadow: 0 0 0 2px rgba(0, 240, 255, 0.2);
}
.form-control.is-invalid {
  border-color: #ff4d4f;
}
.error-msg {
  display: none;
  color: #ff4d4f;
  font-size: 0.85rem;
  margin-top: var(--space-4);
}
.is-invalid + .error-msg {
  display: block;
}

/* Map Block (Static) */
.map-block {
  width: 100%;
  height: 300px;
  background: radial-gradient(circle at center, var(--color-surface) 0%, var(--color-bg) 100%);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-24);
  position: relative;
  overflow: hidden;
}
.map-block::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: 
    linear-gradient(var(--color-glass-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-glass-border) 1px, transparent 1px);
  background-size: 20px 20px;
  opacity: 0.2;
}
.map-marker {
  width: 24px;
  height: 24px;
  background: var(--color-neon-primary);
  border-radius: 50%;
  box-shadow: 0 0 16px var(--color-neon-primary);
  position: relative;
  z-index: 2;
}

/* Footer */
.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-glass-border);
  padding: var(--space-64) 0;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-40);
  margin-bottom: var(--space-40);
}
.footer-col h4 {
  color: #fff;
  margin-bottom: var(--space-16);
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-col ul li {
  margin-bottom: var(--space-8);
}
.footer-col a {
  color: var(--color-text-muted);
}
.footer-col a:hover {
  color: var(--color-neon-primary);
}
.footer-bottom {
  border-top: 1px solid var(--color-glass-border);
  padding-top: var(--space-24);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-24);
  background: rgba(10, 11, 16, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-glass-border);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  transform: translateY(100%);
  transition: transform 0.4s ease-out;
}
.cookie-banner.is-visible {
  transform: translateY(0);
}
.cookie-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}
.cookie-content p {
  margin: 0 0 var(--space-16) 0;
}
.cookie-actions {
  display: flex;
  gap: var(--space-16);
  justify-content: center;
  flex-wrap: wrap;
}

/* Statistics blocks */
.stat-block {
  display: flex;
  align-items: baseline;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}
.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-neon-primary);
}
.stat-label {
  font-size: 1rem;
  color: var(--color-text-muted);
}

/* Media Queries */
@media (max-width: 768px) {
  .site-header {
    height: var(--header-height-mob);
  }
  .main-nav {
    display: none;
    position: fixed;
    top: var(--header-height-mob);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: var(--space-40) var(--space-24);
    align-items: flex-start;
  }
  .main-nav.is-visible {
    display: flex;
  }
  .mobile-toggle {
    display: block;
  }
  .nav-cta {
    display: none;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .article-content {
    padding: var(--space-24) var(--space-16);
  }
  .neon-border::before {
    margin: 0; /* Remove offset on mobile */
  }
}

@media (max-width: 399px) {
  .hero {
    padding: var(--space-40) var(--space-16);
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .cookie-actions {
    flex-direction: column;
  }
}

/* Accessibility - Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}