body {
  background: var(--bg);
  color: var(--text-1);
  font-family: ui-sans-serif, system-ui, Segoe UI, Roboto, Helvetica, Arial;
}

.site-header {
  position: sticky;
  top: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
  background: rgba(13, 14, 17, 0.85);
}

.container {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1rem;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4rem;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: inherit;
}

.brand-logo {
  display: block;
  inline-size: clamp(12rem, 32vw, 22rem);
  max-inline-size: 100%;
  block-size: auto;
  background: none !important;
}

.brand-title {
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.9rem;
  border-radius: 0.75rem;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: inherit;
  transition: background 0.2s ease, color 0.2s ease;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.08);
}

.nav-link.is-active {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
}

.nav-link.is-disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-link--docs {
  font-size: 0.85rem;
  padding: 0.4rem 0.8rem;
  opacity: 0.85;
}

.nav-link--docs:hover {
  opacity: 1;
}

.user-id {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.7;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  border-radius: 0.75rem;
  border: none;
  background: rgba(255, 255, 255, 0.08);
  color: inherit;
  cursor: pointer;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: background 0.2s ease, color 0.2s ease;
}

.btn:hover {
  background: rgba(255, 255, 255, 0.16);
}

.btn-outline {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: transparent;
}

.site-main {
  padding: 2rem 0 4rem;
}

.app-shell {
  display: grid;
  grid-template-columns: minmax(220px, 260px) 1fr;
  min-height: calc(100vh - 4rem);
  background: rgba(13, 14, 17, 0.6);
}

.app-shell__content {
  padding: 2rem 0 4rem;
  overflow: hidden;
}

.app-shell__content > .container {
  display: grid;
  gap: 2rem;
}

.container.stack-lg {
  display: grid;
  gap: 2rem;
}

.side-nav {
  position: sticky;
  top: 4rem;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.5rem 1.25rem;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(13, 14, 17, 0.92);
  min-height: calc(100vh - 4rem);
  max-height: calc(100vh - 4rem);
  overflow-y: auto;
}

.side-nav__module {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.side-nav__module-link {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  transition: color 0.2s ease;
}

.side-nav__module-link:hover,
.side-nav__module-link.is-active {
  color: var(--text-1);
}

.side-nav__submenu {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.35rem;
}

.side-nav__submenu[hidden] {
  display: none !important;
}

.side-nav__sublink {
  display: block;
  padding: 0.35rem 0.6rem;
  border-radius: 0.6rem;
  text-decoration: none;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.68);
  transition: background 0.2s ease, color 0.2s ease;
}

.side-nav__sublink:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.side-nav__sublink.is-active {
  background: rgba(116, 76, 255, 0.2);
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.placeholder {
  display: grid;
  gap: 0.75rem;
  padding: 1.5rem 0 2rem;
}

.placeholder__header h1 {
  margin: 0;
  font-size: clamp(1.6rem, 2vw + 1rem, 2.4rem);
}

.placeholder__body {
  margin: 0;
  color: var(--text-2);
  max-width: 42rem;
}

.cluster {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-footer {
  margin-top: 4rem;
  padding: 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.site-footer a {
  color: inherit;
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

@media (max-width: 960px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .side-nav {
    position: static;
    min-height: auto;
    max-height: none;
    width: 100%;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 1.5rem;
    overflow-x: auto;
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .side-nav__module {
    min-width: max-content;
  }

  .side-nav__submenu {
    display: none;
  }

  .app-shell__content {
    padding-top: 1.5rem;
  }
}