.topbar {
  min-height: 64px;
  padding: 10px 18px;
  align-items: center;
  gap: 12px;
}

.brand {
  min-width: 0;
}

.brand strong {
  font-size: 20px;
  line-height: 1.1;
  white-space: nowrap;
}

.app-menu {
  position: relative;
  margin-left: auto;
}

.menu-toggle {
  width: 44px;
  height: 44px;
  display: grid;
  align-content: center;
  gap: 5px;
  padding: 10px;
  border: 1px solid transparent;
  border-radius: 10px;
  cursor: pointer;
  list-style: none;
}

.menu-toggle::-webkit-details-marker {
  display: none;
}

.menu-toggle::marker {
  content: "";
}

.menu-toggle:hover {
  background: var(--surface-soft);
  border-color: var(--line);
}

.menu-toggle:focus-visible {
  outline: 3px solid rgba(49,103,216,.25);
  outline-offset: 2px;
}

.menu-line {
  display: block;
  width: 22px;
  height: 2px;
  margin: 0 auto;
  border-radius: 999px;
  background: var(--ink);
}

.menu-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: min(320px, calc(100vw - 24px));
  display: grid;
  gap: 8px;
  padding: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
  z-index: 40;
}

.menu-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 2px 2px 8px;
  border-bottom: 1px solid var(--line);
}

.menu-link,
.menu-panel button {
  width: 100%;
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
  text-align: left;
  text-decoration: none;
}

.menu-link:hover,
.menu-panel button:hover {
  background: var(--surface-soft);
  border-color: #aeb9c7;
}

.menu-panel .danger-action {
  color: var(--danger);
}

.source-drawer {
  inset: 64px 0 0 auto;
  z-index: 50;
}

@media (max-width: 720px) {
  .topbar {
    min-height: 60px;
    padding: 8px 12px;
    align-items: center;
  }

  .brand {
    gap: 9px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 11px;
  }

  .brand strong {
    font-size: 18px;
  }

  .menu-toggle {
    width: 42px;
    height: 42px;
    padding: 9px;
  }

  .source-drawer {
    inset: 60px 0 0 auto;
  }

}