:root {
  --bg0: #070912;
  --bg1: #0e1322;
  --panel: rgba(18, 22, 36, 0.92);
  --text: #f4f1ea;
  --muted: #a8b0c4;
  --accent: #5ad6e0;
  --gold: #f0c24b;
  --line: rgba(255, 255, 255, 0.08);
  --max: 720px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background:
    radial-gradient(900px 420px at 15% -10%, rgba(53, 180, 210, 0.18), transparent 60%),
    radial-gradient(700px 380px at 90% 10%, rgba(120, 70, 180, 0.16), transparent 55%),
    linear-gradient(180deg, var(--bg1), var(--bg0));
  min-height: 100vh;
  line-height: 1.65;
}

.page {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  padding: 2.25rem 0 3.5rem;
}

.brand {
  margin: 0 0 0.35rem;
  letter-spacing: 0.18em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--gold);
  text-transform: uppercase;
}

h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 5vw, 2.35rem);
  line-height: 1.2;
  font-weight: 750;
}

h2 {
  margin: 2rem 0 0.65rem;
  font-size: 1.15rem;
  color: var(--accent);
}

.lede, .muted, .meta {
  color: var(--muted);
}

.meta {
  font-size: 0.92rem;
  margin: 0.25rem 0 1.25rem;
}

.toc {
  list-style: none;
  padding: 0;
  margin: 1rem 0 1.5rem;
  display: grid;
  gap: 0.35rem;
}
.toc a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.toc a:hover { border-bottom-color: var(--accent); color: var(--accent); }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.25rem 1.35rem 1.6rem;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
}

section + section {
  border-top: 1px solid var(--line);
  margin-top: 1.35rem;
  padding-top: 0.35rem;
}

ul { padding-left: 1.2rem; }
li { margin: 0.35rem 0; }

a { color: var(--accent); }

.nav-top {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.1rem;
  margin-bottom: 1.25rem;
  font-size: 0.92rem;
}
.nav-top a { text-decoration: none; color: var(--muted); }
.nav-top a:hover { color: var(--accent); }

.card-links {
  display: grid;
  gap: 0.9rem;
  margin: 1.5rem 0 2rem;
}
.card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.1rem 1.2rem;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.card-link:hover {
  border-color: rgba(90, 214, 224, 0.45);
  transform: translateY(-1px);
}
.card-title {
  display: block;
  font-weight: 700;
  margin-bottom: 0.3rem;
  color: var(--accent);
}
.card-desc { color: var(--muted); font-size: 0.95rem; }

.site-foot {
  margin-top: 2rem;
  font-size: 0.88rem;
  color: var(--muted);
}
.contact-box {
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
}

@media (max-width: 480px) {
  .page { width: min(100% - 1.25rem, var(--max)); padding-top: 1.5rem; }
  .panel { padding: 1rem 1rem 1.25rem; border-radius: 12px; }
}