.app {
  min-height: 100vh;
  background: var(--gradient-bg);
}

.logo {
  object-fit: contain;
  filter: drop-shadow(0 0 18px rgba(217, 70, 239, 0.45));
}

.logo--xl {
  width: 140px;
}

.logo--sm {
  width: 40px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: var(--header-height);
  padding: 0 32px;
  background: rgba(10, 6, 19, 0.75);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
}

.topbar .tabs {
  grid-column: 2;
  justify-self: center;
}

.topbar .burger {
  grid-column: 3;
  justify-self: end;
}

.topbar__brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar__name {
  font-weight: 700;
  letter-spacing: 0.14em;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.burger span {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 56px 32px 80px;
}

.section-head {
  margin-bottom: 36px;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-head p {
  margin-top: 8px;
  color: var(--color-text-muted);
}

.site-footer {
  padding: 28px 32px;
  text-align: center;
  color: var(--color-text-faint);
  font-size: 0.8rem;
  border-top: 1px solid var(--color-border);
}

.footer-link {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: var(--color-border);
  transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-primary-light);
  text-decoration-color: var(--color-primary-light);
}