:root {
  --bg: #eaf4fc;
  --panel: #ffffff;
  --ink: #163a57;
  --accent: #1f7fd1;
  --accent-soft: #5c85a8;
  --line: #cfe4f4;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 24px;
  height: 46px;
  padding: 0 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  box-sizing: border-box;
  overflow-x: auto;
  white-space: nowrap;
}

.site-nav__brand {
  flex: none;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.76rem;
}

.site-nav__links {
  display: flex;
  gap: 18px;
  flex: 1 1 auto;
}

.site-nav__links a {
  color: var(--accent-soft);
  text-decoration: none;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
}

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

.site-nav__links a.is-active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.site-nav__logout {
  flex: none;
  color: var(--accent-soft);
  text-decoration: none;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

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

@media (max-width: 480px) {
  .site-nav {
    gap: 16px;
    padding: 0 14px;
  }
  .site-nav__links {
    gap: 14px;
  }
}