:root {
  --space-blue: #0B1D3A;
  --midnight: #081018;
  --panel: #112240;
  --line: #1A2D4D;
  --silver: #C0C0C0;
  --neon: #00FF88;
  --ice: #E6F1FF;
  --muted: #8899AA;
  --amber: #FFC107;
  --success: #00C853;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-heading: "HarmonyOS Sans SC", "Arial Black", system-ui, sans-serif;
  --font-data: "JetBrains Mono", Consolas, monospace;
  --space-unit: 8px;
  --radius: 2px;
  --transition: 0.25s cubic-bezier(0.22, 0.61, 0.36, 1);
  --max-width: 1200px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--space-blue);
  color: var(--ice);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
a { color: var(--neon); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--ice); }
:focus-visible { outline: 2px solid var(--neon); outline-offset: 3px; }
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.main-content { display: block; }

/* Skip link */
.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 200;
  padding: 8px 16px;
  background: var(--neon);
  color: var(--midnight);
  font-weight: 700;
  border-radius: 0 0 4px 4px;
  transition: top 0.2s ease;
}
.skip-link:focus { top: 0; color: var(--midnight); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 29, 58, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-progress {
  position: absolute;
  left: 0;
  top: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--neon), var(--silver));
  z-index: 2;
  pointer-events: none;
}
.header-inner { padding-top: 12px; padding-bottom: 8px; position: relative; }
.header-top { display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--panel);
  border: 1px solid var(--neon);
  border-left: 3px solid var(--neon);
  color: var(--neon);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 16px;
  transform: skewX(-10deg);
  letter-spacing: -0.5px;
}
.brand-text { display: inline-flex; flex-direction: column; font-family: var(--font-heading); font-weight: 800; font-size: 20px; line-height: 1.1; color: var(--ice); }
.brand-text small { font-size: 11px; font-weight: 400; color: var(--silver); letter-spacing: 0.08em; text-transform: uppercase; }
.brand-tagline { margin: 0; font-family: var(--font-data); font-size: 13px; color: var(--muted); letter-spacing: 0.02em; }
.nav-toggle {
  display: none;
  margin-left: auto;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ice);
  font-family: var(--font-body);
  font-size: 14px;
  padding: 8px 16px;
  cursor: pointer;
  gap: 8px;
  align-items: center;
  border-radius: 2px;
}
.nav-toggle:hover { border-color: var(--neon); color: var(--neon); }
.nav-toggle-icon { width: 18px; height: 2px; background: var(--neon); display: inline-block; position: relative; transition: background 0.2s; }
.nav-toggle-icon::before, .nav-toggle-icon::after { content: ""; position: absolute; left: 0; width: 18px; height: 2px; background: var(--neon); transition: transform 0.2s; }
.nav-toggle-icon::before { top: -6px; }
.nav-toggle-icon::after { top: 6px; }
[data-nav-toggle][aria-expanded="true"] .nav-toggle-icon { background: transparent; }
[data-nav-toggle][aria-expanded="true"] .nav-toggle-icon::before { transform: rotate(45deg); top: 0; }
[data-nav-toggle][aria-expanded="true"] .nav-toggle-icon::after { transform: rotate(-45deg); top: 0; }
.site-nav { margin-top: 12px; border-top: 1px solid var(--line); }
.nav-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; }
.nav-link {
  display: block;
  padding: 12px 20px 12px 0;
  margin-right: 20px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  color: var(--ice);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  position: relative;
  transition: color var(--transition);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 4px;
  width: 100%;
  height: 2px;
  background: var(--neon);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.nav-link:hover { color: var(--neon); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link[aria-current="page"] { color: var(--neon); }
.nav-link[aria-current="page"]::after { transform: scaleX(1); }

/* Footer */
.site-footer {
  background: var(--midnight);
  border-top: 2px solid var(--line);
  position: relative;
  margin-top: 80px;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--neon) 20%, var(--silver) 80%, transparent 100%);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 48px;
  padding-top: 56px;
  padding-bottom: 40px;
}
.footer-brand .brand { margin-bottom: 16px; }
.footer-statement {
  color: var(--muted);
  font-size: 14px;
  max-width: 320px;
  margin: 0;
}
.footer-title {
  font-family: var(--font-heading);
  font-size: 14px;
  color: var(--silver);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  display: inline-block;
}
.footer-nav-list { list-style: none; margin: 0; padding: 0; }
.footer-nav-list li { margin-bottom: 8px; }
.footer-nav-list a {
  color: var(--ice);
  font-size: 14px;
}
.footer-nav-list a:hover { color: var(--neon); }
.footer-meta p { margin: 0 0 8px; color: var(--muted); font-size: 13px; }
.footer-meta a { color: var(--muted); }
.footer-meta a:hover { color: var(--neon); }
.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 16px 0;
}
.footer-bottom .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: 13px; }

/* Shared components */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  background: var(--panel);
  color: var(--ice);
  border: 1px solid var(--line);
  border-radius: 2px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.btn:hover { border-color: var(--neon); color: var(--neon); background: var(--space-blue); }
.btn-primary { background: var(--neon); color: var(--midnight); border-color: var(--neon); }
.btn-primary:hover { background: transparent; color: var(--neon); }
.btn-ghost { background: transparent; }
.btn-ghost:hover { background: var(--panel); }

.section { padding: 64px 0; }
.section-head { margin-bottom: 40px; position: relative; }
.section-title {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 800;
  color: var(--ice);
  margin: 0;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  display: inline-block;
  transform: skewX(-4deg);
}
.section-title::after {
  content: "";
  display: block;
  width: 80px;
  height: 4px;
  margin-top: 8px;
  background: linear-gradient(90deg, var(--neon), transparent);
}
.section-subtitle { color: var(--muted); font-size: 15px; max-width: 640px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 4px solid var(--neon);
  border-radius: 2px;
  padding: 20px;
  transition: transform var(--transition), border-color var(--transition);
}
.card:hover { transform: translateY(-4px); border-color: var(--silver); }
.card-title { font-family: var(--font-heading); font-size: 16px; color: var(--ice); margin: 0 0 8px; font-weight: 700; }
.card-meta { font-family: var(--font-data); font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 12px; }
.card-list { list-style: none; margin: 0; padding: 0; }
.card-list li { padding: 6px 0; border-bottom: 1px dashed var(--line); color: var(--ice); font-size: 14px; display: flex; justify-content: space-between; gap: 12px; }
.tag {
  display: inline-block;
  padding: 3px 10px;
  font-size: 12px;
  font-family: var(--font-data);
  color: var(--neon);
  border: 1px solid var(--neon);
  border-radius: 2px;
  letter-spacing: 0.04em;
  background: transparent;
}
.data-font { font-family: var(--font-data); }
.stat { display: inline-flex; flex-direction: column; padding: 16px 20px; background: var(--midnight); border: 1px solid var(--line); border-radius: 2px; }
.stat-value { font-family: var(--font-data); font-size: 32px; color: var(--neon); line-height: 1.1; }
.stat-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; margin-top: 4px; }
.media-frame { position: relative; width: 100%; aspect-ratio: 16 / 9; background: linear-gradient(135deg, var(--panel), var(--midnight)); border: 1px solid var(--line); overflow: hidden; border-radius: 2px; }
.media-frame::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(135deg, rgba(0,255,136,0.08) 25%, transparent 25%, transparent 50%, rgba(0,255,136,0.08) 50%, rgba(0,255,136,0.08) 75%, transparent 75%); background-size: 20px 20px; }
.media-frame::after { content: ""; position: absolute; left: -20%; right: -20%; top: 45%; height: 2px; background: linear-gradient(90deg, transparent, var(--neon), transparent); transform: rotate(-15deg); }
.diagonal { display: inline-block; width: 40px; height: 6px; background: linear-gradient(90deg, var(--neon), var(--silver)); transform: skewX(-20deg); }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-revealed { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 900px) {
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .header-top { flex-wrap: wrap; gap: 12px; }
  .brand-tagline { display: none; }
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .site-nav {
    display: none;
    margin-top: 12px;
    border-top: 1px solid var(--line);
  }
  .site-nav[data-open] { display: block; }
  .nav-list { flex-direction: column; }
  .nav-link { padding: 12px 0; margin-right: 0; border-bottom: 1px solid var(--line); }
  .nav-link::after { display: none; }
}
@media (max-width: 600px) {
  .brand-tagline { display: block; width: 100%; order: 2; font-size: 12px; }
  .nav-toggle { order: 1; }
  .brand { order: 0; }
  .section { padding: 40px 0; }
  .section-title { font-size: 22px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom .container { flex-direction: column; }
}
@media (max-width: 380px) {
  .brand-text { font-size: 16px; }
  .brand-tagline { font-size: 11px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .skip-link { transition: none; }
}