:root {
  --bg-color: #0c0e14;
  --panel-bg: rgba(22, 27, 38, 0.75);
  --panel-border: rgba(99, 115, 150, 0.25);
  --text-primary: #f0f4fc;
  --text-secondary: #9aa8c2;
  --accent-cyan: #00f0ff;
  --accent-purple: #9d4edd;
  --accent-glow: rgba(0, 240, 255, 0.35);
  --glass-highlight: rgba(255, 255, 255, 0.08);
  --surface-alt: #161b26;
  --card-radius: 12px;
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
}

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

html {
  color-scheme: dark;
  font-family: var(--font-main);
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: radial-gradient(circle at 50% 0%, #171d2d 0%, var(--bg-color) 70%);
  color: var(--text-primary);
}

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

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
}

h1, h2, h3, h4, h5, h6 {
  color: #ffffff;
  line-height: 1.25;
  font-weight: 700;
  overflow-wrap: anywhere;
}

p, li, blockquote, table {
  overflow-wrap: anywhere;
}

/* Glassmorphism Elements */
.glass-panel {
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--panel-border);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  border-radius: var(--card-radius);
}

.glass-panel-accent {
  background: linear-gradient(135deg, rgba(22, 27, 38, 0.85) 0%, rgba(15, 23, 42, 0.85) 100%);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(0, 240, 255, 0.3);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.15), inset 0 0 15px rgba(0, 240, 255, 0.05);
  border-radius: var(--card-radius);
}

/* Layout */
.site-header {
  height: 64px;
  border-bottom: 1px solid var(--panel-border);
  background: rgba(12, 14, 20, 0.85);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  position: relative;
  z-index: 100;
}

.header-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: #fff;
  text-decoration: none;
  min-width: 0;
}

.brand svg {
  flex-shrink: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.site-nav a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: 6px;
  transition: all 0.2s ease;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a.active {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.05);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: #0c0e14;
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  transition: opacity 0.2s ease;
  white-space: nowrap;
}

.header-cta:hover {
  opacity: 0.9;
  text-decoration: none;
  color: #0c0e14;
}

.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--panel-border);
  color: #ffffff;
  padding: 8px;
  border-radius: 6px;
  cursor: pointer;
}

.main-content {
  flex: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 64px 24px;
}

/* Hero Section */
.hero {
  padding: 64px 0;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 64px auto;
}

.hero-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero h1 {
  font-size: 2.75rem;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  background: linear-gradient(180deg, #ffffff 0%, #a5b4fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Glass Overlay Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  margin-bottom: 64px;
}

.glass-card {
  position: relative;
  border-radius: var(--card-radius);
  overflow: hidden;
  height: 420px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border: 1px solid var(--panel-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  background-color: #10141e;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 240, 255, 0.5);
  box-shadow: 0 15px 35px rgba(0, 240, 255, 0.2);
}

.glass-card-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.glass-card-overlay {
  position: relative;
  z-index: 2;
  margin: 16px;
  padding: 24px;
  background: rgba(15, 20, 30, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.glass-card-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
}

.glass-card-overlay h3 {
  font-size: 1.25rem;
  color: #fff;
}

.glass-card-overlay p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.glass-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  margin-top: 8px;
}

.glass-card-link::after {
  content: "→";
  transition: transform 0.2s ease;
}

.glass-card:hover .glass-card-link::after {
  transform: translateX(4px);
}

/* Supporting Section */
.supporting-section {
  padding: 48px;
  margin-bottom: 64px;
  border-radius: var(--card-radius);
}

.supporting-section h2 {
  font-size: 1.85rem;
  margin-bottom: 24px;
}

.methodology-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.method-item {
  padding: 20px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
}

.method-item h4 {
  color: var(--accent-cyan);
  margin-bottom: 8px;
  font-size: 1rem;
}

.method-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Article / Topic Page */
.article-header {
  margin-bottom: 40px;
}

.article-header h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.article-meta {
  display: flex;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.featured-image-wrapper {
  width: 100%;
  height: 380px;
  border-radius: var(--card-radius);
  overflow: hidden;
  margin-bottom: 40px;
  border: 1px solid var(--panel-border);
}

.featured-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: #d1d5db;
}

.article-body h2 {
  font-size: 1.6rem;
  margin: 40px 0 16px 0;
}

.article-body h3 {
  font-size: 1.25rem;
  margin: 24px 0 12px 0;
}

.article-body p {
  margin-bottom: 20px;
}

.article-body ul, .article-body ol {
  margin-bottom: 24px;
  padding-left: 24px;
}

.article-body li {
  margin-bottom: 8px;
}

.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-box {
  padding: 24px;
}

.sidebar-box h3 {
  font-size: 1.1rem;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--panel-border);
  padding-bottom: 8px;
}

.fact-list {
  list-style: none;
  padding: 0;
}

.fact-list li {
  font-size: 0.9rem;
  margin-bottom: 12px;
  color: var(--text-secondary);
}

.fact-list strong {
  color: var(--text-primary);
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  font-family: var(--font-mono);
}

/* Specs & Tables */
.spec-table-wrapper {
  width: 100%;
  overflow-x: auto;
  margin: 24px 0;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  text-align: left;
}

.spec-table th, .spec-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--panel-border);
}

.spec-table th {
  background: rgba(255, 255, 255, 0.05);
  color: var(--accent-cyan);
  font-weight: 600;
}

/* Legal Pages */
.legal-container {
  max-width: 800px;
  margin: 0 auto;
}

.legal-section {
  margin-bottom: 32px;
}

.legal-section h2 {
  font-size: 1.35rem;
  margin-bottom: 12px;
  color: #fff;
}

.legal-section p, .legal-section ul {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.7;
}

/* Contact Form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-control {
  background: rgba(15, 20, 30, 0.6);
  border: 1px solid var(--panel-border);
  padding: 12px 16px;
  border-radius: 6px;
  color: #fff;
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s ease;
}

.form-control:focus {
  border-color: var(--accent-cyan);
  background: rgba(15, 20, 30, 0.9);
}

.form-control.is-invalid {
  border-color: #ff4757;
}

.form-error {
  font-size: 0.75rem;
  color: #ff4757;
  display: none;
}

.form-group.has-error .form-error {
  display: block;
}

.btn-submit {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: #0c0e14;
  border: none;
  padding: 14px 24px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.btn-submit:hover {
  opacity: 0.9;
}

.form-status {
  padding: 16px;
  border-radius: 6px;
  margin-top: 16px;
  display: none;
  font-size: 0.9rem;
}

.form-status.is-visible {
  display: block;
}

.form-status.success {
  background: rgba(46, 213, 115, 0.15);
  border: 1px solid #2ed573;
  color: #2ed573;
}

.map-block {
  height: 240px;
  background: #121722;
  border-radius: 8px;
  border: 1px solid var(--panel-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}

/* Footer */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--panel-border);
  background: #090b10;
  padding: 48px 24px 24px 24px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

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

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.8rem;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(12, 14, 20, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--panel-border);
  padding: 20px 24px;
  z-index: 1000;
  display: none;
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.6);
}

.cookie-banner.is-visible {
  display: block;
}

.cookie-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cookie-text {
  flex: 1;
  min-width: 280px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.cookie-text strong {
  color: #fff;
}

.cookie-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.cookie-btn {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid var(--panel-border);
}

.cookie-btn-accept {
  background: var(--accent-cyan);
  color: #0c0e14;
  border-color: var(--accent-cyan);
}

.cookie-btn-accept:hover {
  background: #fff;
  border-color: #fff;
}

.cookie-btn-reject {
  background: transparent;
  color: #fff;
}

.cookie-btn-reject:hover {
  background: rgba(255, 255, 255, 0.05);
}

.cookie-btn-pref {
  background: transparent;
  color: var(--text-secondary);
}

.cookie-btn-pref:hover {
  color: #fff;
}

/* Modal for Preferences */
.cookie-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  z-index: 1100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.cookie-modal.is-visible {
  display: flex;
}

.cookie-modal-card {
  width: 100%;
  max-width: 500px;
  padding: 24px;
}

.cookie-pref-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--panel-border);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .site-header {
    height: 52px;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 52px;
    left: 0;
    right: 0;
    background: #0c0e14;
    flex-direction: column;
    padding: 20px;
    border-bottom: 1px solid var(--panel-border);
    gap: 12px;
  }

  .site-nav.is-visible {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .header-cta {
    display: none;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .article-content,
  .contact-grid,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .glass-card {
    height: 380px;
  }
}

@media (max-width: 400px) {
  .hero h1 {
    font-size: 1.65rem;
  }
  .supporting-section {
    padding: 24px 16px;
  }
  .glass-card-overlay {
    margin: 8px;
    padding: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}