.app-topbar {
  border-bottom: 1px solid var(--border-soft);
  background: linear-gradient(135deg, var(--surface-0) 0%, var(--surface-2) 100%);
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.06);
  backdrop-filter: none;
}

.app-topbar__inner {
  max-width: 1200px;
  margin: auto;
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}

.app-brand {
  min-width: 0;
}

.app-brand__link {
  color: var(--text-strong);
  text-decoration: none;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.01em;
}

.app-brand__link:hover {
  color: var(--text-body);
}

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

.app-nav--signed-in {
  gap: 10px;
}

.app-nav__group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.app-nav__group--utility {
  margin-left: 8px;
  padding-left: 12px;
  border-left: 1px solid var(--border-input);
}

.app-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  text-decoration: none;
  color: var(--text-secondary);
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 7px 10px;
  font-weight: 600;
  font-size: 13px;
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease;
}

.app-nav-link__icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.85;
}

.app-nav-link__label {
  line-height: 1;
}

.app-nav-link:hover {
  background: var(--surface-tint-subtle);
  border-color: var(--border-hover);
  color: var(--text-strong);
}

body.signed-in-app .app-nav-link.is-active {
  background: var(--accent-color);
  border-color: var(--accent-color);
  color: var(--text-inverse);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.16);
}

.app-nav-link.is-active .app-nav-link__icon {
  opacity: 1;
}

.app-nav-link--public {
  color: var(--text-emphasis);
}

@media (max-width: 1080px) and (min-width: 841px) {
  .app-nav-link--utility {
    padding-inline: 8px;
  }

  .app-nav-link--utility .app-nav-link__label {
    display: none;
  }
}