:root {
  --bg-color: #0d0d12;
  --bg-gradient: radial-gradient(circle at top right, #1a1a2e 0%, #0d0d12 60%);
  --surface-glass: rgba(255, 255, 255, 0.03);
  --surface-border: rgba(0, 229, 255, 0.15);
  --surface-border-hover: rgba(0, 229, 255, 0.5);
  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b8;
  --accent-cyan: #00e5ff;
  --accent-cyan-glow: rgba(0, 229, 255, 0.4);
  --accent-purple: #b300ff;
  --accent-purple-glow: rgba(179, 0, 255, 0.3);
  --error-color: #ff3366;
  
  --spacing-4: 4px;
  --spacing-8: 8px;
  --spacing-16: 16px;
  --spacing-24: 24px;
  --spacing-40: 40px;
  --spacing-64: 64px;
  
  --glass-blur: blur(16px);
  --radius-soft: 12px;
  --radius-round: 24px;
}

*, *::before, *::after {
  box-sizing: border-box;
  min-width: 0;
}

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  background-color: var(--bg-color);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6, .brand-name, .nav-link {
  overflow-wrap: anywhere;
  color: var(--text-primary);
  margin-top: 0;
  margin-bottom: var(--spacing-16);
  line-height: 1.2;
}

h1 {
  font-size: 2.5rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2rem;
  border-bottom: 1px solid var(--surface-border);
  padding-bottom: var(--spacing-8);
  margin-top: var(--spacing-40);
}

h3 { font-size: 1.5rem; margin-top: var(--spacing-24); }

p, ul, ol, dl {
  margin-top: 0;
  margin-bottom: var(--spacing-24);
  color: var(--text-secondary);
}

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

a:hover {
  color: #fff;
  text-shadow: 0 0 8px var(--accent-cyan-glow);
}

/* Accessibility: Focus styles */
:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 4px;
  border-radius: 2px;
}

button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-soft);
}

/* Structural Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-24);
}

.main-content {
  flex: 1;
  padding: var(--spacing-64) 0;
}

/* Header */
.site-header {
  height: 64px;
  background: rgba(13, 13, 18, 0.7);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--surface-border);
  display: flex;
  align-items: center;
  position: relative;
  z-index: 100;
}

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

.brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-8);
  font-weight: 700;
  font-size: 1.25rem;
  color: #fff;
}

.brand-icon {
  width: 24px;
  height: 24px;
  fill: var(--accent-cyan);
}

.nav-desktop {
  display: flex;
  gap: var(--spacing-24);
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  margin: 0;
  font-size: 0.95rem;
}

.nav-link:hover, .nav-link[aria-current="page"] {
  color: #fff;
}

.cta-button {
  background: transparent;
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
  padding: var(--spacing-8) var(--spacing-16);
  border-radius: var(--radius-round);
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(0,229,255,0.1);
  transition: all 0.2s ease;
  font-size: 0.9rem;
}

.cta-button:hover {
  background: var(--accent-cyan);
  color: var(--bg-color);
  box-shadow: 0 0 20px var(--accent-cyan-glow);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: var(--spacing-8);
}

.menu-toggle svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.nav-mobile-overlay {
  display: none;
}

@media (max-width: 767px) {
  .site-header {
    height: 52px;
  }
  .nav-desktop, .header-cta {
    display: none;
  }
  .menu-toggle {
    display: block;
  }
  .nav-mobile-overlay.is-visible {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 52px;
    left: 0;
    width: 100%;
    background: rgba(13, 13, 18, 0.95);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--surface-border);
    padding: var(--spacing-24);
    gap: var(--spacing-16);
    z-index: 99;
  }
}

/* Hero Section */
.hero {
  text-align: center;
  padding: var(--spacing-64) 0;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 300px;
  height: 300px;
  background: var(--accent-purple);
  filter: blur(100px);
  opacity: 0.15;
  z-index: -1;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  background: linear-gradient(90deg, #fff, var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--spacing-24);
}

.hero p {
  font-size: 1.25rem;
  max-width: 800px;
  margin: 0 auto var(--spacing-40);
}

/* Grid Layouts */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-24);
  margin-bottom: var(--spacing-64);
}

/* Glass Overlay Card Style */
.glass-card {
  position: relative;
  border-radius: var(--radius-soft);
  overflow: hidden;
  aspect-ratio: 4/5;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  text-decoration: none;
  group: card-group;
}

.glass-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-soft);
  z-index: 2;
  transition: border-color 0.3s ease;
  pointer-events: none;
}

.glass-card:hover::before {
  border-color: var(--accent-cyan);
  box-shadow: inset 0 0 20px var(--accent-cyan-glow);
}

.card-image-wrapper {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.glass-card:hover .card-image {
  transform: scale(1.05);
}

.card-overlay {
  position: relative;
  z-index: 1;
  background: rgba(13, 13, 18, 0.6);
  backdrop-filter: blur(8px);
  padding: var(--spacing-24);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  transform: translateY(0);
  transition: transform 0.3s ease, background 0.3s ease;
}

.glass-card:hover .card-overlay {
  background: rgba(13, 13, 18, 0.8);
}

.card-overlay h3 {
  color: #fff;
  margin-bottom: var(--spacing-8);
  font-size: 1.25rem;
}

.card-overlay p {
  color: var(--text-secondary);
  margin-bottom: 0;
  font-size: 0.9rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Article Content Pages */
.article-header {
  margin-bottom: var(--spacing-64);
}
.article-header h1 {
  font-size: clamp(2rem, 4vw, 3.5rem);
}
.article-meta {
  color: var(--accent-cyan);
  font-weight: 500;
  font-size: 0.9rem;
  display: flex;
  gap: var(--spacing-16);
  margin-bottom: var(--spacing-24);
}
.article-featured-image {
  width: 100%;
  max-height: 500px;
  object-fit: cover;
  border: 1px solid var(--surface-border);
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.05);
  margin-bottom: var(--spacing-40);
}
.content-body {
  max-width: 800px;
  margin: 0 auto;
}
.content-body h2 {
  color: #fff;
  margin-top: var(--spacing-64);
}
.content-body h3 {
  color: #e0e0e0;
}
.content-body p, .content-body li {
  font-size: 1.1rem;
  line-height: 1.8;
}
.content-body ul, .content-body ol {
  padding-left: var(--spacing-24);
}
.content-body li {
  margin-bottom: var(--spacing-8);
}

/* Data Tables */
.table-wrapper {
  overflow-x: auto;
  margin-bottom: var(--spacing-24);
  background: var(--surface-glass);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-soft);
  backdrop-filter: var(--glass-blur);
}
table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}
th, td {
  padding: var(--spacing-16);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
th {
  background: rgba(0, 229, 255, 0.05);
  color: #fff;
  font-weight: 600;
}
tr:last-child td {
  border-bottom: none;
}

/* Highlight Box / Stats */
.highlight-box {
  background: var(--surface-glass);
  border-left: 4px solid var(--accent-cyan);
  padding: var(--spacing-24);
  border-radius: 0 var(--radius-soft) var(--radius-soft) 0;
  margin: var(--spacing-40) 0;
  backdrop-filter: var(--glass-blur);
}
.stat-block {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--spacing-16);
}
.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}
.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Forms */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-24);
  background: var(--surface-glass);
  padding: var(--spacing-40);
  border-radius: var(--radius-soft);
  border: 1px solid var(--surface-border);
  backdrop-filter: var(--glass-blur);
  max-width: 600px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
}
label {
  font-weight: 500;
  color: #fff;
}
input, textarea {
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-soft);
  padding: var(--spacing-16);
  color: #fff;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s ease;
}
input:focus, textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan-glow);
}
input.is-invalid, textarea.is-invalid {
  border-color: var(--error-color);
}
.error-msg {
  color: var(--error-color);
  font-size: 0.85rem;
  display: none;
}
.is-invalid + .error-msg {
  display: block;
}
.submit-btn {
  background: var(--accent-cyan);
  color: var(--bg-color);
  border: none;
  padding: var(--spacing-16);
  border-radius: var(--radius-soft);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}
.submit-btn:hover {
  background: #fff;
  box-shadow: 0 0 20px var(--accent-cyan-glow);
}

/* Contact Grid */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-64);
  align-items: start;
}

.map-block {
  position: relative;
  border-radius: var(--radius-soft);
  overflow: hidden;
  border: 1px solid var(--surface-border);
  aspect-ratio: 1;
}

.map-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13, 13, 18, 0.9), transparent);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--spacing-24);
  pointer-events: none;
}

.map-overlay p {
  color: #fff;
  margin: 0;
  font-weight: 500;
}

@media (max-width: 767px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-40);
  }
}

/* Footer */
.site-footer {
  background: rgba(0, 0, 0, 0.4);
  border-top: 1px solid var(--surface-border);
  padding: var(--spacing-64) 0 var(--spacing-40);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-40);
  margin-bottom: var(--spacing-40);
}

.footer-col h4 {
  color: #fff;
  margin-bottom: var(--spacing-16);
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li {
  margin-bottom: var(--spacing-8);
}

.footer-col a {
  color: var(--text-secondary);
}

.footer-col a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: var(--spacing-24);
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(13, 13, 18, 0.95);
  backdrop-filter: var(--glass-blur);
  border-top: 1px solid var(--accent-purple);
  padding: var(--spacing-24);
  z-index: 1000;
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 -10px 40px rgba(179, 0, 255, 0.1);
}

.cookie-banner.is-visible {
  transform: translateY(0);
}

.cookie-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-16);
  max-width: 1200px;
  margin: 0 auto;
}

.cookie-text p {
  margin: 0;
  font-size: 0.9rem;
}

.cookie-actions {
  display: flex;
  gap: var(--spacing-16);
  flex-wrap: wrap;
}

.btn-cookie {
  padding: var(--spacing-8) var(--spacing-16);
  border-radius: var(--radius-soft);
  font-size: 0.9rem;
  cursor: pointer;
  border: 1px solid var(--surface-border);
  background: transparent;
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.btn-cookie[data-cookie-choice="accept"] {
  background: var(--accent-purple);
  border-color: var(--accent-purple);
  color: #fff;
}

.btn-cookie:hover {
  background: rgba(255,255,255,0.1);
}
.btn-cookie[data-cookie-choice="accept"]:hover {
  background: #c733ff;
}

@media (min-width: 768px) {
  .cookie-content {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* 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;
  }
}

/* Breakpoint for very small devices */
@media (max-width: 399px) {
  .hero h1 {
    font-size: 1.75rem;
  }
  .grid-cards {
    grid-template-columns: 1fr;
  }
  .card-overlay {
    padding: var(--spacing-16);
  }
}