:root {
  --bg-color: #0f172a;
  --card-bg: #1e293b;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent: #38bdf8;
  --border: #334155;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Shared Top Network Bar */
.network-bar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(2, 6, 23, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  width: 100%;
}

.network-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-group {
  display: flex;
  flex-direction: column;
}

.brand-title {
  color: var(--text-main);
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
  letter-spacing: -0.01em;
}

.brand-title:hover {
  color: var(--accent);
}

.brand-subtitle {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.network-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.network-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.45rem 0.75rem;
  border-radius: 0.4rem;
  transition: all 0.2s ease;
}

.network-links a:hover {
  color: var(--text-main);
  background-color: rgba(255, 255, 255, 0.06);
}

.network-links a.active {
  color: var(--accent);
  background-color: rgba(56, 189, 248, 0.1);
}

.network-links a.nav-cta {
  border: 1px solid var(--border);
  color: var(--text-main);
  margin-left: 0.5rem;
}

.network-links a.nav-cta:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-main);
  font-size: 1.25rem;
  padding: 0.3rem 0.65rem;
  border-radius: 0.4rem;
  cursor: pointer;
}

/* Mobile Responsive Menu */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .network-links {
    display: none;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #020617;
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.5rem;
    gap: 0.4rem;
  }

  .network-links.open {
    display: flex;
  }

  .network-links a.nav-cta {
    margin-left: 0;
    margin-top: 0.4rem;
    text-align: center;
  }
}

/* Main Content Container */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
  flex: 1;
  width: 100%;
}

header.hero {
  text-align: center;
  margin-bottom: 3rem;
}

header.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

header.hero p {
  color: var(--text-muted);
  font-size: 1.125rem;
  max-width: 650px;
  margin: 0 auto 1.25rem;
}

/* Cards & Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
}

.card h2 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.btn {
  display: inline-block;
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.btn:hover {
  text-decoration: underline;
}

/* Directory Table */
table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--card-bg);
  border-radius: 0.75rem;
  overflow: hidden;
  border: 1px solid var(--border);
}

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  background-color: #020617;
  color: var(--accent);
}

/* Shared Footer */
footer.site-footer {
  background-color: #020617;
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 3rem;
}

footer.site-footer .footer-links {
  margin-bottom: 1rem;
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

footer.site-footer a {
  color: var(--text-muted);
  text-decoration: none;
}

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